In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.
This patch fixes the following warnings:
lib/zstd/bitstream.h:261:30: warning: this statement may fall through [-Wimplicit-fallthrough=]
lib/zstd/bitstream.h:262:30: warning: this statement may fall through [-Wimplicit-fallthrough=]
lib/zstd/bitstream.h:263:30: warning: this statement may fall through [-Wimplicit-fallthrough=]
lib/zstd/bitstream.h:264:30: warning: this statement may fall through [-Wimplicit-fallthrough=]
lib/zstd/bitstream.h:265:30: warning: this statement may fall through [-Wimplicit-fallthrough=]
lib/zstd/compress.c:3183:16: warning: this statement may fall through [-Wimplicit-fallthrough=]
lib/zstd/decompress.c:1770:18: warning: this statement may fall through [-Wimplicit-fallthrough=]
lib/zstd/decompress.c:2376:15: warning: this statement may fall through [-Wimplicit-fallthrough=]
lib/zstd/decompress.c:2404:15: warning: this statement may fall through [-Wimplicit-fallthrough=]
lib/zstd/decompress.c:2435:16: warning: this statement may fall through [-Wimplicit-fallthrough=]
lib/zstd/huf_compress.c: In function ‘HUF_compress1X_usingCTable’:
lib/zstd/huf_compress.c:535:5: warning: this statement may fall through [-Wimplicit-fallthrough=]
if (sizeof((stream)->bitContainer) * 8 < HUF_TABLELOG_MAX * 4 + 7) \
^
lib/zstd/huf_compress.c:558:54: note: in expansion of macro ‘HUF_FLUSHBITS_2’
case 3: HUF_encodeSymbol(&bitC, ip[n + 2], CTable); HUF_FLUSHBITS_2(&bitC);
^~~~~~~~~~~~~~~
lib/zstd/huf_compress.c:559:2: note: here
case 2: HUF_encodeSymbol(&bitC, ip[n + 1], CTable); HUF_FLUSHBITS_1(&bitC);
^~~~
lib/zstd/huf_compress.c:531:5: warning: this statement may fall through [-Wimplicit-fallthrough=]
if (sizeof((stream)->bitContainer) * 8 < HUF_TABLELOG_MAX * 2 + 7) \
^
lib/zstd/huf_compress.c:559:54: note: in expansion of macro ‘HUF_FLUSHBITS_1’
case 2: HUF_encodeSymbol(&bitC, ip[n + 1], CTable); HUF_FLUSHBITS_1(&bitC);
^~~~~~~~~~~~~~~
lib/zstd/huf_compress.c:560:2: note: here
case 1: HUF_encodeSymbol(&bitC, ip[n + 0], CTable); HUF_FLUSHBITS(&bitC);
^~~~
AR lib/zstd//built-in.a
Warning level 3 was used: -Wimplicit-fallthrough=3
This patch is part of the ongoing efforts to enabling -Wimplicit-fallthrough.
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Now, Kbuild nicely handles composite objects to avoid multiple
definition.
Makefiles can simply add the same objects multiple times across
composite objects.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Add zstd compression and decompression kernel modules.
zstd offers a wide varity of compression speed and quality trade-offs.
It can compress at speeds approaching lz4, and quality approaching lzma.
zstd decompressions at speeds more than twice as fast as zlib, and
decompression speed remains roughly the same across all compression levels.
The code was ported from the upstream zstd source repository. The
`linux/zstd.h` header was modified to match linux kernel style.
The cross-platform and allocation code was stripped out. Instead zstd
requires the caller to pass a preallocated workspace. The source files
were clang-formatted [1] to match the Linux Kernel style as much as
possible. Otherwise, the code was unmodified. We would like to avoid
as much further manual modification to the source code as possible, so it
will be easier to keep the kernel zstd up to date.
I benchmarked zstd compression as a special character device. I ran zstd
and zlib compression at several levels, as well as performing no
compression, which measure the time spent copying the data to kernel space.
Data is passed to the compresser 4096 B at a time. The benchmark file is
located in the upstream zstd source repository under
`contrib/linux-kernel/zstd_compress_test.c` [2].
I ran the benchmarks on a Ubuntu 14.04 VM with 2 cores and 4 GiB of RAM.
The VM is running on a MacBook Pro with a 3.1 GHz Intel Core i7 processor,
16 GB of RAM, and a SSD. I benchmarked using `silesia.tar` [3], which is
211,988,480 B large. Run the following commands for the benchmark:
sudo modprobe zstd_compress_test
sudo mknod zstd_compress_test c 245 0
sudo cp silesia.tar zstd_compress_test
The time is reported by the time of the userland `cp`.
The MB/s is computed with
1,536,217,008 B / time(buffer size, hash)
which includes the time to copy from userland.
The Adjusted MB/s is computed with
1,536,217,088 B / (time(buffer size, hash) - time(buffer size, none)).
The memory reported is the amount of memory the compressor requests.
| Method | Size (B) | Time (s) | Ratio | MB/s | Adj MB/s | Mem (MB) |
|----------|----------|----------|-------|---------|----------|----------|
| none | 11988480 | 0.100 | 1 | 2119.88 | - | - |
| zstd -1 | 73645762 | 1.044 | 2.878 | 203.05 | 224.56 | 1.23 |
| zstd -3 | 66988878 | 1.761 | 3.165 | 120.38 | 127.63 | 2.47 |
| zstd -5 | 65001259 | 2.563 | 3.261 | 82.71 | 86.07 | 2.86 |
| zstd -10 | 60165346 | 13.242 | 3.523 | 16.01 | 16.13 | 13.22 |
| zstd -15 | 58009756 | 47.601 | 3.654 | 4.45 | 4.46 | 21.61 |
| zstd -19 | 54014593 | 102.835 | 3.925 | 2.06 | 2.06 | 60.15 |
| zlib -1 | 77260026 | 2.895 | 2.744 | 73.23 | 75.85 | 0.27 |
| zlib -3 | 72972206 | 4.116 | 2.905 | 51.50 | 52.79 | 0.27 |
| zlib -6 | 68190360 | 9.633 | 3.109 | 22.01 | 22.24 | 0.27 |
| zlib -9 | 67613382 | 22.554 | 3.135 | 9.40 | 9.44 | 0.27 |
I benchmarked zstd decompression using the same method on the same machine.
The benchmark file is located in the upstream zstd repo under
`contrib/linux-kernel/zstd_decompress_test.c` [4]. The memory reported is
the amount of memory required to decompress data compressed with the given
compression level. If you know the maximum size of your input, you can
reduce the memory usage of decompression irrespective of the compression
level.
| Method | Time (s) | MB/s | Adjusted MB/s | Memory (MB) |
|----------|----------|---------|---------------|-------------|
| none | 0.025 | 8479.54 | - | - |
| zstd -1 | 0.358 | 592.15 | 636.60 | 0.84 |
| zstd -3 | 0.396 | 535.32 | 571.40 | 1.46 |
| zstd -5 | 0.396 | 535.32 | 571.40 | 1.46 |
| zstd -10 | 0.374 | 566.81 | 607.42 | 2.51 |
| zstd -15 | 0.379 | 559.34 | 598.84 | 4.61 |
| zstd -19 | 0.412 | 514.54 | 547.77 | 8.80 |
| zlib -1 | 0.940 | 225.52 | 231.68 | 0.04 |
| zlib -3 | 0.883 | 240.08 | 247.07 | 0.04 |
| zlib -6 | 0.844 | 251.17 | 258.84 | 0.04 |
| zlib -9 | 0.837 | 253.27 | 287.64 | 0.04 |
Tested in userland using the test-suite in the zstd repo under
`contrib/linux-kernel/test/UserlandTest.cpp` [5] by mocking the kernel
functions. Fuzz tested using libfuzzer [6] with the fuzz harnesses under
`contrib/linux-kernel/test/{RoundTripCrash.c,DecompressCrash.c}` [7] [8]
with ASAN, UBSAN, and MSAN. Additionaly, it was tested while testing the
BtrFS and SquashFS patches coming next.
[1] https://clang.llvm.org/docs/ClangFormat.html
[2] https://github.com/facebook/zstd/blob/dev/contrib/linux-kernel/zstd_compress_test.c
[3] http://sun.aei.polsl.pl/~sdeor/index.php?page=silesia
[4] https://github.com/facebook/zstd/blob/dev/contrib/linux-kernel/zstd_decompress_test.c
[5] https://github.com/facebook/zstd/blob/dev/contrib/linux-kernel/test/UserlandTest.cpp
[6] http://llvm.org/docs/LibFuzzer.html
[7] https://github.com/facebook/zstd/blob/dev/contrib/linux-kernel/test/RoundTripCrash.c
[8] https://github.com/facebook/zstd/blob/dev/contrib/linux-kernel/test/DecompressCrash.c
zstd source repository: https://github.com/facebook/zstd
Signed-off-by: Nick Terrell <terrelln@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
(cherry picked from commit 73f3d1b48f5069d46ba48aa28c2898dc93185560)
Signed-off-by: Peter Kalauskas <peskal@google.com>
Bug: 112488418
Change-Id: I6321071707a322683a4b35d047e7410c5a67acdc
When partialDecoding, it is EOF if we've either filled the output buffer
or can't proceed with reading an offset for following match.
In some extreme corner cases when compressed data is suitably corrupted,
UAF will occur. As reported by KASAN [1], LZ4_decompress_safe_partial
may lead to read out of bound problem during decoding. lz4 upstream has
fixed it [2] and this issue has been disscussed here [3] before.
current decompression routine was ported from lz4 v1.8.3, bumping
lib/lz4 to v1.9.+ is certainly a huge work to be done later, so, we'd
better fix it first.
[1] https://lore.kernel.org/all/000000000000830d1205cf7f0477@google.com/
[2] c5d6f8a8be#
[3] https://lore.kernel.org/all/CC666AE8-4CA4-4951-B6FB-A2EFDE3AC03B@fb.com/
Link: https://lkml.kernel.org/r/20211111105048.2006070-1-guoxuenan@huawei.com
Reported-by: syzbot+63d688f1d899c588fb71@syzkaller.appspotmail.com
Signed-off-by: Guo Xuenan <guoxuenan@huawei.com>
Reviewed-by: Nick Terrell <terrelln@fb.com>
Acked-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Cc: Yann Collet <cyan@fb.com>
Cc: Chengyang Fan <cy.fan@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When kernel.h is used in the headers it adds a lot into dependency hell,
especially when there are circular dependencies are involved.
Replace kernel.h inclusion with the list of what is really being used.
The rest of the changes are induced by the above and may not be split.
Link: https://lkml.kernel.org/r/20211209123823.20425-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com> [brcmfmac]
Acked-by: Kalle Valo <kvalo@kernel.org>
Cc: Arend van Spriel <aspriel@gmail.com>
Cc: Franky Lin <franky.lin@broadcom.com>
Cc: Hante Meuleman <hante.meuleman@broadcom.com>
Cc: Chi-hsien Lin <chi-hsien.lin@infineon.com>
Cc: Wright Feng <wright.feng@infineon.com>
Cc: Chung-hsien Hsu <chung-hsien.hsu@infineon.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Declare LZ4_decompress_safe_withPrefix64k as static to fix sparse
warning:
> warning: symbol 'LZ4_decompress_safe_withPrefix64k' was not declared.
> Should it be static?
Link: https://lkml.kernel.org/r/20210511154345.610569-1-thisisrast7@gmail.com
Signed-off-by: Rajat Asthana <thisisrast7@gmail.com>
Reviewed-by: Nick Terrell <terrelln@fb.com>
Cc: Gao Xiang <hsiangkao@redhat.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This operation was intentional, but tools such as smatch will warn that it
might not have been.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Yann Collet <cyan@fb.com>
Cc: Vasily Averin <vvs@virtuozzo.com>
Cc: Gao Xiang <hsiangkao@aol.com>
Link: http://lkml.kernel.org/r/3bf931c6ea0cae3e23f3485801986859851b4f04.camel@perches.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
LZ4 final literal copy could be overlapped when doing
in-place decompression, so it's unsafe to just use memcpy()
on an optimized memcpy approach but memmove() instead.
Upstream LZ4 has updated this years ago [1] (and the impact
is non-sensible [2] plus only a few bytes remain), this commit
just synchronizes LZ4 upstream code to the kernel side as well.
It can be observed as EROFS in-place decompression failure
on specific files when X86_FEATURE_ERMS is unsupported,
memcpy() optimization of commit 59daa706fb ("x86, mem:
Optimize memcpy by avoiding memory false dependece") will
be enabled then.
Currently most modern x86-CPUs support ERMS, these CPUs just
use "rep movsb" approach so no problem at all. However, it can
still be verified with forcely disabling ERMS feature...
arch/x86/lib/memcpy_64.S:
ALTERNATIVE_2 "jmp memcpy_orig", "", X86_FEATURE_REP_GOOD, \
- "jmp memcpy_erms", X86_FEATURE_ERMS
+ "jmp memcpy_orig", X86_FEATURE_ERMS
We didn't observe any strange on arm64/arm/x86 platform before
since most memcpy() would behave in an increasing address order
("copy upwards" [3]) and it's the correct order of in-place
decompression but it really needs an update to memmove() for sure
considering it's an undefined behavior according to the standard
and some unique optimization already exists in the kernel.
[1] 33cb8518ac
[2] https://github.com/lz4/lz4/pull/717#issuecomment-497818921
[3] https://sourceware.org/bugzilla/show_bug.cgi?id=12518
Link: https://lkml.kernel.org/r/20201122030749.2698994-1-hsiangkao@redhat.com
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
Reviewed-by: Nick Terrell <terrelln@fb.com>
Cc: Yann Collet <yann.collet.73@gmail.com>
Cc: Miao Xie <miaoxie@huawei.com>
Cc: Chao Yu <yuchao0@huawei.com>
Cc: Li Guifu <bluce.liguifu@huawei.com>
Cc: Guo Xuenan <guoxuenan@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch replaces all memcpy() calls with LZ4_memcpy() which calls
__builtin_memcpy() so the compiler can inline it.
LZ4 relies heavily on memcpy() with a constant size being inlined. In x86
and i386 pre-boot environments memcpy() cannot be inlined because memcpy()
doesn't get defined as __builtin_memcpy().
An equivalent patch has been applied upstream so that the next import
won't lose this change [1].
I've measured the kernel decompression speed using QEMU before and after
this patch for the x86_64 and i386 architectures. The speed-up is about
10x as shown below.
Code Arch Kernel Size Time Speed
v5.8 x86_64 11504832 B 148 ms 79 MB/s
patch x86_64 11503872 B 13 ms 885 MB/s
v5.8 i386 9621216 B 91 ms 106 MB/s
patch i386 9620224 B 10 ms 962 MB/s
I also measured the time to decompress the initramfs on x86_64, i386, and
arm. All three show the same decompression speed before and after, as
expected.
[1] https://github.com/lz4/lz4/pull/890
Signed-off-by: Nick Terrell <terrelln@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Yann Collet <yann.collet.73@gmail.com>
Cc: Gao Xiang <gaoxiang25@huawei.com>
Cc: Sven Schmidt <4sschmid@informatik.uni-hamburg.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Arvind Sankar <nivedita@alum.mit.edu>
Link: http://lkml.kernel.org/r/20200803194022.2966806-1-nickrterrell@gmail.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Update the LZ4 compression module based on LZ4 v1.8.3 in order for the
erofs file system to use the newest LZ4_decompress_safe_partial() which
can now decode exactly the nb of bytes requested [1] to take place of the
open hacked code in the erofs file system itself.
Currently, apart from the erofs file system, no other users use
LZ4_decompress_safe_partial, so no worry about the interface.
In addition, LZ4 v1.8.x boosts up decompression speed compared to the
current code which is based on LZ4 v1.7.3, mainly due to shortcut
optimization for the specific common LZ4-sequences [2].
lzbench testdata (tested in kirin710, 8 cores, 4 big cores
at 2189Mhz, 2GB DDR RAM at 1622Mhz, with enwik8 testdata [3]):
Compressor name Compress. Decompress. Compr. size Ratio Filename
memcpy 5004 MB/s 4924 MB/s 100000000 100.00 enwik8
lz4hc 1.7.3 -9 12 MB/s 653 MB/s 42203253 42.20 enwik8
lz4hc 1.8.0 -9 12 MB/s 908 MB/s 42203096 42.20 enwik8
lz4hc 1.8.3 -9 11 MB/s 965 MB/s 42203094 42.20 enwik8
[1] https://github.com/lz4/lz4/issues/56608d347b5b2
[2] v1.8.1 perf: slightly faster compression and decompression speed
a31b7058cb
v1.8.2 perf: slightly faster HC compression and decompression speed
45f8603aae1a191b3f8d
[3] http://mattmahoney.net/dc/textdata.htmlhttp://mattmahoney.net/dc/enwik8.zip
Link: http://lkml.kernel.org/r/1537181207-21932-1-git-send-email-gaoxiang25@huawei.com
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Tested-by: Guo Xuenan <guoxuenan@huawei.com>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: Yann Collet <yann.collet.73@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Fang Wei <fangwei1@huawei.com>
Cc: Chao Yu <yuchao0@huawei.com>
Cc: Miao Xie <miaoxie@huawei.com>
Cc: Sven Schmidt <4sschmid@informatik.uni-hamburg.de>
Cc: Kyungsik Lee <kyungsik.lee@lge.com>
Cc: <weidu.du@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: madeofgreat <ravenklawasd@gmail.com>
Signed-off-by: MadeOfGreat <ravenklawasd@gmail.com>
Signed-off-by: CloudedQuartz <ravenklawasd@gmail.com>
Max output size can be larger than the source length if the input data
is 'too' random. This is normal and thus should be allowed since the
caller is expected to have the actual size of the output written to be
updated via the dst_len variable.
Bug: 111209481
Change-Id: I44a8abb6fb55936f2fd47616954341ba6b0d62ec
Signed-off-by: David Lin <dtwlin@google.com>
Signed-off-by: root <franciscofranco.1990@gmail.com>
Signed-off-by: PainKiller3 <ninadpatil100@gmail.com>
There are many code paths opencoding kvmalloc. Let's use the helper
instead. The main difference to kvmalloc is that those users are
usually not considering all the aspects of the memory allocator. E.g.
allocation requests <= 32kB (with 4kB pages) are basically never failing
and invoke OOM killer to satisfy the allocation. This sounds too
disruptive for something that has a reasonable fallback - the vmalloc.
On the other hand those requests might fallback to vmalloc even when the
memory allocator would succeed after several more reclaim/compaction
attempts previously. There is no guarantee something like that happens
though.
This patch converts many of those places to kv[mz]alloc* helpers because
they are more conservative.
Link: http://lkml.kernel.org/r/20170306103327.2766-2-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> # Xen bits
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Andreas Dilger <andreas.dilger@intel.com> # Lustre
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> # KVM/s390
Acked-by: Dan Williams <dan.j.williams@intel.com> # nvdim
Acked-by: David Sterba <dsterba@suse.com> # btrfs
Acked-by: Ilya Dryomov <idryomov@gmail.com> # Ceph
Acked-by: Tariq Toukan <tariqt@mellanox.com> # mlx4
Acked-by: Leon Romanovsky <leonro@mellanox.com> # mlx5
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Anton Vorontsov <anton@enomsg.org>
Cc: Colin Cross <ccross@android.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Kent Overstreet <kent.overstreet@gmail.com>
Cc: Santosh Raspatur <santosh@chelsio.com>
Cc: Hariprasad S <hariprasad@chelsio.com>
Cc: Yishai Hadas <yishaih@mellanox.com>
Cc: Oleg Drokin <oleg.drokin@intel.com>
Cc: "Yan, Zheng" <zyan@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Don't populate the read-only arrays dec32table and dec64table on the
stack, instead make them both static const. Makes the object code
smaller by over 10K bytes:
Before:
text data bss dec hex filename
31500 0 0 31500 7b0c lib/lz4/lz4_decompress.o
After:
text data bss dec hex filename
20237 176 0 20413 4fbd lib/lz4/lz4_decompress.o
(gcc version 7.2.0 x86_64)
Link: http://lkml.kernel.org/r/20170921221939.20820-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: Sven Schmidt <4sschmid@informatik.uni-hamburg.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patch series "Update LZ4 compressor module", v7.
This patchset updates the LZ4 compression module to a version based on
LZ4 v1.7.3 allowing to use the fast compression algorithm aka LZ4 fast
which provides an "acceleration" parameter as a tradeoff between high
compression ratio and high compression speed.
We want to use LZ4 fast in order to support compression in lustre and
(mostly, based on that) investigate data reduction techniques in behalf
of storage systems.
Also, it will be useful for other users of LZ4 compression, as with LZ4
fast it is possible to enable applications to use fast and/or high
compression depending on the usecase. For instance, ZRAM is offering a
LZ4 backend and could benefit from an updated LZ4 in the kernel.
LZ4 homepage: http://www.lz4.org/
LZ4 source repository: https://github.com/lz4/lz4 Source version: 1.7.3
Benchmark (taken from [1], Core i5-4300U @1.9GHz):
----------------|--------------|----------------|----------
Compressor | Compression | Decompression | Ratio
----------------|--------------|----------------|----------
memcpy | 4200 MB/s | 4200 MB/s | 1.000
LZ4 fast 50 | 1080 MB/s | 2650 MB/s | 1.375
LZ4 fast 17 | 680 MB/s | 2220 MB/s | 1.607
LZ4 fast 5 | 475 MB/s | 1920 MB/s | 1.886
LZ4 default | 385 MB/s | 1850 MB/s | 2.101
[1] http://fastcompression.blogspot.de/2015/04/sampling-or-faster-lz4.html
[PATCH 1/5] lib: Update LZ4 compressor module
[PATCH 2/5] lib/decompress_unlz4: Change module to work with new LZ4 module version
[PATCH 3/5] crypto: Change LZ4 modules to work with new LZ4 module version
[PATCH 4/5] fs/pstore: fs/squashfs: Change usage of LZ4 to work with new LZ4 version
[PATCH 5/5] lib/lz4: Remove back-compat wrappers
This patch (of 5):
Update the LZ4 kernel module to LZ4 v1.7.3 by Yann Collet. The kernel
module is inspired by the previous work by Chanho Min. The updated LZ4
module will not break existing code since the patchset contains
appropriate changes.
API changes:
New method LZ4_compress_fast which differs from the variant available in
kernel by the new acceleration parameter, allowing to trade compression
ratio for more compression speed and vice versa.
LZ4_decompress_fast is the respective decompression method, featuring a
very fast decoder (multiple GB/s per core), able to reach RAM speed in
multi-core systems. The decompressor allows to decompress data
compressed with LZ4 fast as well as the LZ4 HC (high compression)
algorithm.
Also the useful functions LZ4_decompress_safe_partial and
LZ4_compress_destsize were added. The latter reverses the logic by
trying to compress as much data as possible from source to dest while
the former aims to decompress partial blocks of data.
A bunch of streaming functions were also added which allow
compressig/decompressing data in multiple steps (so called "streaming
mode").
The methods lz4_compress and lz4_decompress_unknownoutputsize are now
known as LZ4_compress_default respectivley LZ4_decompress_safe. The old
methods will be removed since there's no callers left in the code.
[arnd@arndb.de: fix KERNEL_LZ4 support]
Link: http://lkml.kernel.org/r/20170208211946.2839649-1-arnd@arndb.de
[akpm@linux-foundation.org: simplify]
[akpm@linux-foundation.org: fix the simplification]
[4sschmid@informatik.uni-hamburg.de: fix performance regressions]
Link: http://lkml.kernel.org/r/1486898178-17125-2-git-send-email-4sschmid@informatik.uni-hamburg.de
[4sschmid@informatik.uni-hamburg.de: v8]
Link: http://lkml.kernel.org/r/1487182598-15351-2-git-send-email-4sschmid@informatik.uni-hamburg.de
Link: http://lkml.kernel.org/r/1486321748-19085-2-git-send-email-4sschmid@informatik.uni-hamburg.de
Signed-off-by: Sven Schmidt <4sschmid@informatik.uni-hamburg.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Bongkyu Kim <bongkyu.kim@lge.com>
Cc: Rui Salvaterra <rsalvaterra@gmail.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David S. Miller <davem@davemloft.net>
Cc: Anton Vorontsov <anton@enomsg.org>
Cc: Colin Cross <ccross@android.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kobj_type currently uses a list of individual attributes to store
default attributes. Attribute groups are more flexible than a list of
attributes because groups provide support for attribute visibility. So,
add support for default attribute groups to kobj_type.
In future patches, the existing uses of kobj_type’s attribute list will
be converted to attribute groups. When that is complete, kobj_type’s
attribute list, “default_attrs”, will be removed.
Signed-off-by: Kimberly Brown <kimbrownkd@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Conflicts:
drivers/scsi/ufs/ufshcd.c Checked out ' 39f4ec1ef6 ', similar fix was found in source
drivers/staging/android/ashmem.c
drivers/usb/gadget/function/u_serial.c
fs/ext4/ext4.h
security/selinux/avc.c
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Merge 4.9.215 into android-4.9-q
Changes in 4.9.215
x86/vdso: Use RDPID in preference to LSL when available
KVM: x86: emulate RDPID
ALSA: hda: Use scnprintf() for printing texts for sysfs/procfs
ecryptfs: fix a memory leak bug in parse_tag_1_packet()
ecryptfs: fix a memory leak bug in ecryptfs_init_messaging()
ALSA: usb-audio: Apply sample rate quirk for Audioengine D1
ext4: don't assume that mmp_nodename/bdevname have NUL
ext4: fix checksum errors with indexed dirs
ext4: improve explanation of a mount failure caused by a misconfigured kernel
Btrfs: fix race between using extent maps and merging them
btrfs: log message when rw remount is attempted with unclean tree-log
perf/x86/amd: Add missing L2 misses event spec to AMD Family 17h's event map
padata: Remove broken queue flushing
s390/time: Fix clk type in get_tod_clock
perf/x86/intel: Fix inaccurate period in context switch for auto-reload
hwmon: (pmbus/ltc2978) Fix PMBus polling of MFR_COMMON definitions.
jbd2: move the clearing of b_modified flag to the journal_unmap_buffer()
jbd2: do not clear the BH_Mapped flag when forgetting a metadata buffer
btrfs: print message when tree-log replay starts
scsi: qla2xxx: fix a potential NULL pointer dereference
Revert "KVM: VMX: Add non-canonical check on writes to RTIT address MSRs"
drm/gma500: Fixup fbdev stolen size usage evaluation
cpu/hotplug, stop_machine: Fix stop_machine vs hotplug order
brcmfmac: Fix use after free in brcmf_sdio_readframes()
gianfar: Fix TX timestamping with a stacked DSA driver
pinctrl: sh-pfc: sh7264: Fix CAN function GPIOs
pxa168fb: Fix the function used to release some memory in an error handling path
media: i2c: mt9v032: fix enum mbus codes and frame sizes
powerpc/powernv/iov: Ensure the pdn for VFs always contains a valid PE number
gpio: gpio-grgpio: fix possible sleep-in-atomic-context bugs in grgpio_irq_map/unmap()
media: sti: bdisp: fix a possible sleep-in-atomic-context bug in bdisp_device_run()
pinctrl: baytrail: Do not clear IRQ flags on direct-irq enabled pins
efi/x86: Map the entire EFI vendor string before copying it
MIPS: Loongson: Fix potential NULL dereference in loongson3_platform_init()
sparc: Add .exit.data section.
uio: fix a sleep-in-atomic-context bug in uio_dmem_genirq_irqcontrol()
usb: gadget: udc: fix possible sleep-in-atomic-context bugs in gr_probe()
jbd2: clear JBD2_ABORT flag before journal_reset to update log tail info when load journal
x86/sysfb: Fix check for bad VRAM size
tracing: Fix tracing_stat return values in error handling paths
tracing: Fix very unlikely race of registering two stat tracers
ext4, jbd2: ensure panic when aborting with zero errno
kconfig: fix broken dependency in randconfig-generated .config
clk: qcom: rcg2: Don't crash if our parent can't be found; return an error
drm/amdgpu: remove 4 set but not used variable in amdgpu_atombios_get_connector_info_from_object_table
regulator: rk808: Lower log level on optional GPIOs being not available
net/wan/fsl_ucc_hdlc: reject muram offsets above 64K
PCI/IOV: Fix memory leak in pci_iov_add_virtfn()
NFC: port100: Convert cpu_to_le16(le16_to_cpu(E1) + E2) to use le16_add_cpu().
media: v4l2-device.h: Explicitly compare grp{id,mask} to zero in v4l2_device macros
reiserfs: Fix spurious unlock in reiserfs_fill_super() error handling
ALSA: usx2y: Adjust indentation in snd_usX2Y_hwdep_dsp_status
b43legacy: Fix -Wcast-function-type
ipw2x00: Fix -Wcast-function-type
iwlegacy: Fix -Wcast-function-type
rtlwifi: rtl_pci: Fix -Wcast-function-type
orinoco: avoid assertion in case of NULL pointer
ACPICA: Disassembler: create buffer fields in ACPI_PARSE_LOAD_PASS1
scsi: aic7xxx: Adjust indentation in ahc_find_syncrate
drm/mediatek: handle events when enabling/disabling crtc
ARM: dts: r8a7779: Add device node for ARM global timer
x86/vdso: Provide missing include file
PM / devfreq: rk3399_dmc: Add COMPILE_TEST and HAVE_ARM_SMCCC dependency
pinctrl: sh-pfc: sh7269: Fix CAN function GPIOs
RDMA/rxe: Fix error type of mmap_offset
ALSA: sh: Fix compile warning wrt const
tools lib api fs: Fix gcc9 stringop-truncation compilation error
usbip: Fix unsafe unaligned pointer usage
udf: Fix free space reporting for metadata and virtual partitions
soc/tegra: fuse: Correct straps' address for older Tegra124 device trees
rcu: Use WRITE_ONCE() for assignments to ->pprev for hlist_nulls
Input: edt-ft5x06 - work around first register access error
wan: ixp4xx_hss: fix compile-testing on 64-bit
ASoC: atmel: fix build error with CONFIG_SND_ATMEL_SOC_DMA=m
tty: synclinkmp: Adjust indentation in several functions
tty: synclink_gt: Adjust indentation in several functions
driver core: platform: Prevent resouce overflow from causing infinite loops
driver core: Print device when resources present in really_probe()
vme: bridges: reduce stack usage
drm/nouveau/gr/gk20a,gm200-: add terminators to method lists read from fw
drm/nouveau: Fix copy-paste error in nouveau_fence_wait_uevent_handler
drm/vmwgfx: prevent memory leak in vmw_cmdbuf_res_add
usb: musb: omap2430: Get rid of musb .set_vbus for omap2430 glue
iommu/arm-smmu-v3: Use WRITE_ONCE() when changing validity of an STE
scsi: iscsi: Don't destroy session if there are outstanding connections
arm64: fix alternatives with LLVM's integrated assembler
pwm: omap-dmtimer: Remove PWM chip in .remove before making it unfunctional
cmd64x: potential buffer overflow in cmd64x_program_timings()
ide: serverworks: potential overflow in svwks_set_pio_mode()
remoteproc: Initialize rproc_class before use
x86/decoder: Add TEST opcode to Group3-2
s390/ftrace: generate traced function stack frame
driver core: platform: fix u32 greater or equal to zero comparison
ALSA: hda - Add docking station support for Lenovo Thinkpad T420s
powerpc/sriov: Remove VF eeh_dev state when disabling SR-IOV
jbd2: switch to use jbd2_journal_abort() when failed to submit the commit record
ARM: 8951/1: Fix Kexec compilation issue.
hostap: Adjust indentation in prism2_hostapd_add_sta
iwlegacy: ensure loop counter addr does not wrap and cause an infinite loop
cifs: fix NULL dereference in match_prepath
irqchip/gic-v3: Only provision redistributors that are enabled in ACPI
drm/nouveau/disp/nv50-: prevent oops when no channel method map provided
ftrace: fpid_next() should increase position index
trigger_next should increase position index
radeon: insert 10ms sleep in dce5_crtc_load_lut
ocfs2: fix a NULL pointer dereference when call ocfs2_update_inode_fsync_trans()
lib/scatterlist.c: adjust indentation in __sg_alloc_table
reiserfs: prevent NULL pointer dereference in reiserfs_insert_item()
bcache: explicity type cast in bset_bkey_last()
irqchip/gic-v3-its: Reference to its_invall_cmd descriptor when building INVALL
iwlwifi: mvm: Fix thermal zone registration
microblaze: Prevent the overflow of the start
brd: check and limit max_part par
help_next should increase position index
selinux: ensure we cleanup the internal AVC counters on error in avc_update()
enic: prevent waking up stopped tx queues over watchdog reset
net/sched: matchall: add missing validation of TCA_MATCHALL_FLAGS
net/sched: flower: add missing validation of TCA_FLOWER_FLAGS
floppy: check FDC index for errors before assigning it
vt: selection, handle pending signals in paste_selection
staging: android: ashmem: Disallow ashmem memory from being remapped
staging: vt6656: fix sign of rx_dbm to bb_pre_ed_rssi.
xhci: Force Maximum Packet size for Full-speed bulk devices to valid range.
usb: uas: fix a plug & unplug racing
USB: Fix novation SourceControl XL after suspend
USB: hub: Don't record a connect-change event during reset-resume
staging: rtl8188eu: Fix potential security hole
staging: rtl8188eu: Fix potential overuse of kernel memory
x86/mce/amd: Publish the bank pointer only after setup has succeeded
x86/mce/amd: Fix kobject lifetime
tty/serial: atmel: manage shutdown in case of RS485 or ISO7816 mode
tty: serial: imx: setup the correct sg entry for tx dma
Revert "ipc,sem: remove uneeded sem_undo_list lock usage in exit_sem()"
xhci: apply XHCI_PME_STUCK_QUIRK to Intel Comet Lake platforms
KVM: x86: don't notify userspace IOAPIC on edge-triggered interrupt EOI
VT_RESIZEX: get rid of field-by-field copyin
vt: vt_ioctl: fix race in VT_RESIZEX
lib/stackdepot.c: fix global out-of-bounds in stack_slabs
KVM: nVMX: Don't emulate instructions in guest mode
netfilter: xt_bpf: add overflow checks
ext4: fix a data race in EXT4_I(inode)->i_disksize
ext4: add cond_resched() to __ext4_find_entry()
ext4: fix mount failure with quota configured as module
ext4: rename s_journal_flag_rwsem to s_writepages_rwsem
ext4: fix race between writepages and enabling EXT4_EXTENTS_FL
KVM: nVMX: Refactor IO bitmap checks into helper function
KVM: nVMX: Check IO instruction VM-exit conditions
KVM: apic: avoid calculating pending eoi from an uninitialized val
Btrfs: fix btrfs_wait_ordered_range() so that it waits for all ordered extents
scsi: Revert "RDMA/isert: Fix a recently introduced regression related to logout"
scsi: Revert "target: iscsi: Wait for all commands to finish before freeing a session"
usb: gadget: composite: Fix bMaxPower for SuperSpeedPlus
staging: greybus: use after free in gb_audio_manager_remove_all()
ecryptfs: replace BUG_ON with error handling code
ALSA: rawmidi: Avoid bit fields for state flags
ALSA: seq: Avoid concurrent access to queue flags
ALSA: seq: Fix concurrent access to queue current tick/time
netfilter: xt_hashlimit: limit the max size of hashtable
ata: ahci: Add shutdown to freeze hardware resources of ahci
xen: Enable interrupts when calling _cond_resched()
s390/mm: Explicitly compare PAGE_DEFAULT_KEY against zero in storage_key_init_range
Linux 4.9.215
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I4c663321dde48cd2a324e59acb70c99f75f9344e
[ Upstream commit 305e519ce48e935702c32241f07d393c3c8fed3e ]
Walter Wu has reported a potential case in which init_stack_slab() is
called after stack_slabs[STACK_ALLOC_MAX_SLABS - 1] has already been
initialized. In that case init_stack_slab() will overwrite
stack_slabs[STACK_ALLOC_MAX_SLABS], which may result in a memory
corruption.
Link: http://lkml.kernel.org/r/20200218102950.260263-1-glider@google.com
Fixes: cd11016e5f ("mm, kasan: stackdepot implementation. Enable stackdepot for SLAB")
Signed-off-by: Alexander Potapenko <glider@google.com>
Reported-by: Walter Wu <walter-zh.wu@mediatek.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 4e456fee215677584cafa7f67298a76917e89c64 ]
Clang warns:
../lib/scatterlist.c:314:5: warning: misleading indentation; statement
is not part of the previous 'if' [-Wmisleading-indentation]
return -ENOMEM;
^
../lib/scatterlist.c:311:4: note: previous statement is here
if (prv)
^
1 warning generated.
This warning occurs because there is a space before the tab on this
line. Remove it so that the indentation is consistent with the Linux
kernel coding style and clang no longer warns.
Link: http://lkml.kernel.org/r/20191218033606.11942-1-natechancellor@gmail.com
Link: https://github.com/ClangBuiltLinux/linux/issues/830
Fixes: edce6820a9 ("scatterlist: prevent invalid free when alloc fails")
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Merge 4.9.214 into android-4.9-q
Changes in 4.9.214
media: iguanair: fix endpoint sanity check
x86/cpu: Update cached HLE state on write to TSX_CTRL_CPUID_CLEAR
sparc32: fix struct ipc64_perm type definition
ASoC: qcom: Fix of-node refcount unbalance to link->codec_of_node
cls_rsvp: fix rsvp_policy
gtp: use __GFP_NOWARN to avoid memalloc warning
net: hsr: fix possible NULL deref in hsr_handle_frame()
net_sched: fix an OOB access in cls_tcindex
rxrpc: Fix insufficient receive notification generation
rxrpc: Fix NULL pointer deref due to call->conn being cleared on disconnect
tcp: clear tp->total_retrans in tcp_disconnect()
tcp: clear tp->delivered in tcp_disconnect()
tcp: clear tp->data_segs{in|out} in tcp_disconnect()
tcp: clear tp->segs_{in|out} in tcp_disconnect()
media: uvcvideo: Avoid cyclic entity chains due to malformed USB descriptors
mfd: dln2: More sanity checking for endpoints
brcmfmac: Fix memory leak in brcmf_usbdev_qinit
usb: gadget: legacy: set max_speed to super-speed
usb: gadget: f_ncm: Use atomic_t to track in-flight request
usb: gadget: f_ecm: Use atomic_t to track in-flight request
ALSA: dummy: Fix PCM format loop in proc output
media/v4l2-core: set pages dirty upon releasing DMA buffers
media: v4l2-rect.h: fix v4l2_rect_map_inside() top/left adjustments
lib/test_kasan.c: fix memory leak in kmalloc_oob_krealloc_more()
powerpc/pseries: Advance pfn if section is not present in lmb_is_removable()
mmc: spi: Toggle SPI polarity, do not hardcode it
PCI: keystone: Fix link training retries initiation
ubifs: Change gfp flags in page allocation for bulk read
ubifs: Fix deadlock in concurrent bulk-read and writepage
crypto: api - Check spawn->alg under lock in crypto_drop_spawn
scsi: qla2xxx: Fix mtcp dump collection failure
power: supply: ltc2941-battery-gauge: fix use-after-free
of: Add OF_DMA_DEFAULT_COHERENT & select it on powerpc
dm space map common: fix to ensure new block isn't already in use
crypto: pcrypt - Do not clear MAY_SLEEP flag in original request
crypto: atmel-aes - Fix counter overflow in CTR mode
crypto: api - Fix race condition in crypto_spawn_alg
crypto: picoxcell - adjust the position of tasklet_init and fix missed tasklet_kill
btrfs: set trans->drity in btrfs_commit_transaction
ARM: tegra: Enable PLLP bypass during Tegra124 LP1
mwifiex: fix unbalanced locking in mwifiex_process_country_ie()
sunrpc: expiry_time should be seconds not timeval
KVM: x86: Refactor prefix decoding to prevent Spectre-v1/L1TF attacks
KVM: x86: Protect DR-based index computations from Spectre-v1/L1TF attacks
KVM: x86: Protect kvm_lapic_reg_write() from Spectre-v1/L1TF attacks
KVM: x86: Protect kvm_hv_msr_[get|set]_crash_data() from Spectre-v1/L1TF attacks
KVM: x86: Protect ioapic_write_indirect() from Spectre-v1/L1TF attacks
KVM: x86: Protect MSR-based index computations in pmu.h from Spectre-v1/L1TF attacks
KVM: x86: Protect ioapic_read_indirect() from Spectre-v1/L1TF attacks
KVM: x86: Protect MSR-based index computations from Spectre-v1/L1TF attacks in x86.c
KVM: x86: Protect x86_decode_insn from Spectre-v1/L1TF attacks
KVM: x86: Protect MSR-based index computations in fixed_msr_to_seg_unit() from Spectre-v1/L1TF attacks
KVM: PPC: Book3S HV: Uninit vCPU if vcore creation fails
KVM: PPC: Book3S PR: Free shared page if mmu initialization fails
KVM: x86: Free wbinvd_dirty_mask if vCPU creation fails
clk: tegra: Mark fuse clock as critical
scsi: qla2xxx: Fix the endianness of the qla82xx_get_fw_size() return type
scsi: csiostor: Adjust indentation in csio_device_reset
scsi: qla4xxx: Adjust indentation in qla4xxx_mem_free
ext2: Adjust indentation in ext2_fill_super
powerpc/44x: Adjust indentation in ibm4xx_denali_fixup_memsize
NFC: pn544: Adjust indentation in pn544_hci_check_presence
ppp: Adjust indentation into ppp_async_input
net: smc911x: Adjust indentation in smc911x_phy_configure
net: tulip: Adjust indentation in {dmfe, uli526x}_init_module
IB/mlx5: Fix outstanding_pi index for GSI qps
nfsd: fix delay timer on 32-bit architectures
nfsd: fix jiffies/time_t mixup in LRU list
ubi: fastmap: Fix inverted logic in seen selfcheck
ubi: Fix an error pointer dereference in error handling code
mfd: da9062: Fix watchdog compatible string
mfd: rn5t618: Mark ADC control register volatile
net: systemport: Avoid RBUF stuck in Wake-on-LAN mode
bonding/alb: properly access headers in bond_alb_xmit()
NFS: switch back to to ->iterate()
NFS: Fix memory leaks and corruption in readdir
NFS: Fix bool initialization/comparison
NFS: Directory page cache pages need to be locked when read
ext4: fix deadlock allocating crypto bounce page from mempool
Btrfs: fix assertion failure on fsync with NO_HOLES enabled
btrfs: use bool argument in free_root_pointers()
btrfs: remove trivial locking wrappers of tree mod log
Btrfs: fix race between adding and putting tree mod seq elements and nodes
drm: atmel-hlcdc: enable clock before configuring timing engine
KVM: x86: Protect pmu_intel.c from Spectre-v1/L1TF attacks
btrfs: flush write bio if we loop in extent_write_cache_pages
KVM: x86/mmu: Apply max PA check for MMIO sptes to 32-bit KVM
KVM: VMX: Add non-canonical check on writes to RTIT address MSRs
KVM: nVMX: vmread should not set rflags to specify success in case of #PF
cifs: fail i/o on soft mounts if sessionsetup errors out
clocksource: Prevent double add_timer_on() for watchdog_timer
perf/core: Fix mlock accounting in perf_mmap()
rxrpc: Fix service call disconnection
ASoC: pcm: update FE/BE trigger order based on the command
RDMA/netlink: Do not always generate an ACK for some netlink operations
scsi: ufs: Fix ufshcd_probe_hba() reture value in case ufshcd_scsi_add_wlus() fails
PCI: Don't disable bridge BARs when assigning bus resources
nfs: NFS_SWAP should depend on SWAP
NFSv4: try lease recovery on NFS4ERR_EXPIRED
rtc: hym8563: Return -EINVAL if the time is known to be invalid
rtc: cmos: Stop using shared IRQ
ARC: [plat-axs10x]: Add missing multicast filter number to GMAC node
ARM: dts: at91: sama5d3: fix maximum peripheral clock rates
ARM: dts: at91: sama5d3: define clock rate range for tcb1
tools/power/acpi: fix compilation error
powerpc/pseries: Allow not having ibm, hypertas-functions::hcall-multi-tce for DDW
pinctrl: sh-pfc: r8a7778: Fix duplicate SDSELF_B and SD1_CLK_B
scsi: megaraid_sas: Do not initiate OCR if controller is not in ready state
dm: fix potential for q->make_request_fn NULL pointer
mwifiex: Fix possible buffer overflows in mwifiex_ret_wmm_get_status()
mwifiex: Fix possible buffer overflows in mwifiex_cmd_append_vsie_tlv()
libertas: don't exit from lbs_ibss_join_existing() with RCU read lock held
libertas: make lbs_ibss_join_existing() return error code on rates overflow
Linux 4.9.214
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ieac421e286126a690fd2c206ea7b4dde45e4a475
commit 3e21d9a501bf99aee2e5835d7f34d8c823f115b5 upstream.
In case memory resources for _ptr2_ were allocated, release them before
return.
Notice that in case _ptr1_ happens to be NULL, krealloc() behaves
exactly like kmalloc().
Addresses-Coverity-ID: 1490594 ("Resource leak")
Link: http://lkml.kernel.org/r/20200123160115.GA4202@embeddedor
Fixes: 3f15801cdc ("lib: add kasan test module")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge 4.9.212 into android-4.9-q
Changes in 4.9.212
xfs: Sanity check flags of Q_XQUOTARM call
powerpc/archrandom: fix arch_get_random_seed_int()
mt7601u: fix bbp version check in mt7601u_wait_bbp_ready
drm/sti: do not remove the drm_bridge that was never added
drm/virtio: fix bounds check in virtio_gpu_cmd_get_capset()
ALSA: hda: fix unused variable warning
IB/rxe: replace kvfree with vfree
ALSA: usb-audio: update quirk for B&W PX to remove microphone
staging: comedi: ni_mio_common: protect register write overflow
pwm: lpss: Release runtime-pm reference from the driver's remove callback
mlxsw: reg: QEEC: Add minimum shaper fields
pcrypt: use format specifier in kobject_add
exportfs: fix 'passing zero to ERR_PTR()' warning
drm/dp_mst: Skip validating ports during destruction, just ref
net: phy: Fix not to call phy_resume() if PHY is not attached
pinctrl: sh-pfc: r8a7740: Add missing REF125CK pin to gether_gmii group
pinctrl: sh-pfc: r8a7740: Add missing LCD0 marks to lcd0_data24_1 group
pinctrl: sh-pfc: r8a7791: Remove bogus ctrl marks from qspi_data4_b group
pinctrl: sh-pfc: r8a7791: Remove bogus marks from vin1_b_data18 group
pinctrl: sh-pfc: sh73a0: Add missing TO pin to tpu4_to3 group
pinctrl: sh-pfc: r8a7794: Remove bogus IPSR9 field
pinctrl: sh-pfc: sh7734: Add missing IPSR11 field
pinctrl: sh-pfc: sh7269: Add missing PCIOR0 field
pinctrl: sh-pfc: sh7734: Remove bogus IPSR10 value
Input: nomadik-ske-keypad - fix a loop timeout test
clk: highbank: fix refcount leak in hb_clk_init()
clk: qoriq: fix refcount leak in clockgen_init()
clk: socfpga: fix refcount leak
clk: samsung: exynos4: fix refcount leak in exynos4_get_xom()
clk: imx6q: fix refcount leak in imx6q_clocks_init()
clk: imx6sx: fix refcount leak in imx6sx_clocks_init()
clk: imx7d: fix refcount leak in imx7d_clocks_init()
clk: vf610: fix refcount leak in vf610_clocks_init()
clk: armada-370: fix refcount leak in a370_clk_init()
clk: kirkwood: fix refcount leak in kirkwood_clk_init()
clk: armada-xp: fix refcount leak in axp_clk_init()
clk: dove: fix refcount leak in dove_clk_init()
IB/usnic: Fix out of bounds index check in query pkey
RDMA/ocrdma: Fix out of bounds index check in query pkey
RDMA/qedr: Fix out of bounds index check in query pkey
arm64: dts: apq8016-sbc: Increase load on l11 for SDCARD
drm/etnaviv: NULL vs IS_ERR() buf in etnaviv_core_dump()
media: s5p-jpeg: Correct step and max values for V4L2_CID_JPEG_RESTART_INTERVAL
crypto: tgr192 - fix unaligned memory access
ASoC: imx-sgtl5000: put of nodes if finding codec fails
IB/iser: Pass the correct number of entries for dma mapped SGL
rtc: cmos: ignore bogus century byte
clk: sunxi-ng: sun8i-a23: Enable PLL-MIPI LDOs when ungating it
iwlwifi: mvm: fix A-MPDU reference assignment
tty: ipwireless: Fix potential NULL pointer dereference
crypto: crypto4xx - Fix wrong ppc4xx_trng_probe()/ppc4xx_trng_remove() arguments
ARM: dts: lpc32xx: add required clocks property to keypad device node
ARM: dts: lpc32xx: reparent keypad controller to SIC1
ARM: dts: lpc32xx: fix ARM PrimeCell LCD controller variant
ARM: dts: lpc32xx: fix ARM PrimeCell LCD controller clocks property
ARM: dts: lpc32xx: phy3250: fix SD card regulator voltage
iwlwifi: mvm: fix RSS config command
staging: most: cdev: add missing check for cdev_add failure
rtc: ds1672: fix unintended sign extension
thermal: mediatek: fix register index error
net: phy: fixed_phy: Fix fixed_phy not checking GPIO
rtc: 88pm860x: fix unintended sign extension
rtc: 88pm80x: fix unintended sign extension
rtc: pm8xxx: fix unintended sign extension
fbdev: chipsfb: remove set but not used variable 'size'
iw_cxgb4: use tos when importing the endpoint
iw_cxgb4: use tos when finding ipv6 routes
pinctrl: sh-pfc: emev2: Add missing pinmux functions
pinctrl: sh-pfc: r8a7791: Fix scifb2_data_c pin group
pinctrl: sh-pfc: r8a7792: Fix vin1_data18_b pin group
pinctrl: sh-pfc: sh73a0: Fix fsic_spdif pin groups
usb: phy: twl6030-usb: fix possible use-after-free on remove
block: don't use bio->bi_vcnt to figure out segment number
keys: Timestamp new keys
vfio_pci: Enable memory accesses before calling pci_map_rom
dmaengine: mv_xor: Use correct device for DMA API
cdc-wdm: pass return value of recover_from_urb_loss
regulator: pv88060: Fix array out-of-bounds access
regulator: pv88080: Fix array out-of-bounds access
regulator: pv88090: Fix array out-of-bounds access
net: dsa: qca8k: Enable delay for RGMII_ID mode
drm/nouveau/bios/ramcfg: fix missing parentheses when calculating RON
drm/nouveau/pmu: don't print reply values if exec is false
ASoC: qcom: Fix of-node refcount unbalance in apq8016_sbc_parse_of()
fs/nfs: Fix nfs_parse_devname to not modify it's argument
NFS: Fix a soft lockup in the delegation recovery code
clocksource/drivers/sun5i: Fail gracefully when clock rate is unavailable
clocksource/drivers/exynos_mct: Fix error path in timer resources initialization
mmc: sdhci-brcmstb: handle mmc_of_parse() errors during probe
ARM: 8847/1: pm: fix HYP/SVC mode mismatch when MCPM is used
ARM: 8848/1: virt: Align GIC version check with arm64 counterpart
regulator: wm831x-dcdc: Fix list of wm831x_dcdc_ilim from mA to uA
nios2: ksyms: Add missing symbol exports
scsi: megaraid_sas: reduce module load time
drivers/rapidio/rio_cm.c: fix potential oops in riocm_ch_listen()
xen, cpu_hotplug: Prevent an out of bounds access
net: sh_eth: fix a missing check of of_get_phy_mode
media: ivtv: update *pos correctly in ivtv_read_pos()
media: cx18: update *pos correctly in cx18_read_pos()
media: wl128x: Fix an error code in fm_download_firmware()
media: cx23885: check allocation return
regulator: tps65086: Fix tps65086_ldoa1_ranges for selector 0xB
jfs: fix bogus variable self-initialization
tipc: tipc clang warning
m68k: mac: Fix VIA timer counter accesses
ARM: OMAP2+: Fix potentially uninitialized return value for _setup_reset()
media: davinci-isif: avoid uninitialized variable use
media: tw5864: Fix possible NULL pointer dereference in tw5864_handle_frame
spi: tegra114: clear packed bit for unpacked mode
spi: tegra114: fix for unpacked mode transfers
soc/fsl/qe: Fix an error code in qe_pin_request()
spi: bcm2835aux: fix driver to not allow 65535 (=-1) cs-gpios
ehea: Fix a copy-paste err in ehea_init_port_res
scsi: qla2xxx: Unregister chrdev if module initialization fails
ARM: pxa: ssp: Fix "WARNING: invalid free of devm_ allocated data"
hwmon: (w83627hf) Use request_muxed_region for Super-IO accesses
tipc: set sysctl_tipc_rmem and named_timeout right range
powerpc: vdso: Make vdso32 installation conditional in vdso_install
ARM: dts: ls1021: Fix SGMII PCS link remaining down after PHY disconnect
media: ov2659: fix unbalanced mutex_lock/unlock
6lowpan: Off by one handling ->nexthdr
dmaengine: axi-dmac: Don't check the number of frames for alignment
ALSA: usb-audio: Handle the error from snd_usb_mixer_apply_create_quirk()
packet: in recvmsg msg_name return at least sizeof sockaddr_ll
ASoC: fix valid stream condition
usb: gadget: fsl: fix link error against usb-gadget module
IB/mlx5: Add missing XRC options to QP optional params mask
iommu/vt-d: Make kernel parameter igfx_off work with vIOMMU
net: ena: fix swapped parameters when calling ena_com_indirect_table_fill_entry
net: ena: fix: Free napi resources when ena_up() fails
net: ena: fix incorrect test of supported hash function
net: ena: fix ena_com_fill_hash_function() implementation
dmaengine: tegra210-adma: restore channel status
l2tp: Fix possible NULL pointer dereference
media: omap_vout: potential buffer overflow in vidioc_dqbuf()
media: davinci/vpbe: array underflow in vpbe_enum_outputs()
platform/x86: alienware-wmi: printing the wrong error code
netfilter: ebtables: CONFIG_COMPAT: reject trailing data after last rule
pwm: meson: Don't disable PWM when setting duty repeatedly
ARM: riscpc: fix lack of keyboard interrupts after irq conversion
kdb: do a sanity check on the cpu in kdb_per_cpu()
backlight: lm3630a: Return 0 on success in update_status functions
thermal: cpu_cooling: Actually trace CPU load in thermal_power_cpu_get_power
dmaengine: tegra210-adma: Fix crash during probe
spi: spi-fsl-spi: call spi_finalize_current_message() at the end
crypto: ccp - fix AES CFB error exposed by new test vectors
serial: stm32: fix transmit_chars when tx is stopped
misc: sgi-xp: Properly initialize buf in xpc_get_rsvd_page_pa
iommu: Use right function to get group for device
signal/cifs: Fix cifs_put_tcp_session to call send_sig instead of force_sig
inet: frags: call inet_frags_fini() after unregister_pernet_subsys()
media: vivid: fix incorrect assignment operation when setting video mode
powerpc/cacheinfo: add cacheinfo_teardown, cacheinfo_rebuild
drm/msm/mdp5: Fix mdp5_cfg_init error return
net: netem: fix backlog accounting for corrupted GSO frames
net/af_iucv: always register net_device notifier
ASoC: ti: davinci-mcasp: Fix slot mask settings when using multiple AXRs
rtc: pcf8563: Clear event flags and disable interrupts before requesting irq
drm/msm/a3xx: remove TPL1 regs from snapshot
perf/ioctl: Add check for the sample_period value
dmaengine: hsu: Revert "set HSU_CH_MTSR to memory width"
clk: qcom: Fix -Wunused-const-variable
iommu/amd: Make iommu_disable safer
mfd: intel-lpss: Release IDA resources
rxrpc: Fix uninitialized error code in rxrpc_send_data_packet()
devres: allow const resource arguments
RDMA/hns: Fixs hw access invalid dma memory error
net: pasemi: fix an use-after-free in pasemi_mac_phy_init()
scsi: libfc: fix null pointer dereference on a null lport
libertas_tf: Use correct channel range in lbtf_geo_init
qed: reduce maximum stack frame size
usb: host: xhci-hub: fix extra endianness conversion
mic: avoid statically declaring a 'struct device'.
x86/kgbd: Use NMI_VECTOR not APIC_DM_NMI
ALSA: aoa: onyx: always initialize register read value
net/mlx5: Fix mlx5_ifc_query_lag_out_bits
cifs: fix rmmod regression in cifs.ko caused by force_sig changes
crypto: caam - free resources in case caam_rng registration failed
ext4: set error return correctly when ext4_htree_store_dirent fails
ASoC: es8328: Fix copy-paste error in es8328_right_line_controls
ASoC: cs4349: Use PM ops 'cs4349_runtime_pm'
ASoC: wm8737: Fix copy-paste error in wm8737_snd_controls
signal: Allow cifs and drbd to receive their terminating signals
ASoC: sun4i-i2s: RX and TX counter registers are swapped
dmaengine: dw: platform: Switch to acpi_dma_controller_register()
mac80211: minstrel_ht: fix per-group max throughput rate initialization
mips: avoid explicit UB in assignment of mips_io_port_base
ahci: Do not export local variable ahci_em_messages
Partially revert "kfifo: fix kfifo_alloc() and kfifo_init()"
hwmon: (lm75) Fix write operations for negative temperatures
power: supply: Init device wakeup after device_add()
x86, perf: Fix the dependency of the x86 insn decoder selftest
staging: greybus: light: fix a couple double frees
bcma: fix incorrect update of BCMA_CORE_PCI_MDIO_DATA
iio: dac: ad5380: fix incorrect assignment to val
ath9k: dynack: fix possible deadlock in ath_dynack_node_{de}init
net: sonic: return NETDEV_TX_OK if failed to map buffer
Btrfs: fix hang when loading existing inode cache off disk
hwmon: (shtc1) fix shtc1 and shtw1 id mask
net: sonic: replace dev_kfree_skb in sonic_send_packet
net/rds: Fix 'ib_evt_handler_call' element in 'rds_ib_stat_names'
iommu/amd: Wait for completion of IOTLB flush in attach_device
net: hisilicon: Fix signedness bug in hix5hd2_dev_probe()
net: broadcom/bcmsysport: Fix signedness in bcm_sysport_probe()
net: stmmac: dwmac-meson8b: Fix signedness bug in probe
of: mdio: Fix a signedness bug in of_phy_get_and_connect()
net: ethernet: stmmac: Fix signedness bug in ipq806x_gmac_of_parse()
nvme: retain split access workaround for capability reads
net: stmmac: gmac4+: Not all Unicast addresses may be available
mac80211: accept deauth frames in IBSS mode
llc: fix another potential sk_buff leak in llc_ui_sendmsg()
llc: fix sk_buff refcounting in llc_conn_state_process()
net: stmmac: fix length of PTP clock's name string
act_mirred: Fix mirred_init_module error handling
drm/msm/dsi: Implement reset correctly
dmaengine: imx-sdma: fix size check for sdma script_number
net: netem: fix error path for corrupted GSO frames
net: netem: correct the parent's backlog when corrupted packet was dropped
net: qca_spi: Move reset_count to struct qcaspi
afs: Fix large file support
media: ov6650: Fix incorrect use of JPEG colorspace
media: ov6650: Fix some format attributes not under control
media: ov6650: Fix .get_fmt() V4L2_SUBDEV_FORMAT_TRY support
MIPS: Loongson: Fix return value of loongson_hwmon_init
net: neigh: use long type to store jiffies delta
packet: fix data-race in fanout_flow_is_huge()
dmaengine: ti: edma: fix missed failure handling
drm/radeon: fix bad DMA from INTERRUPT_CNTL2
arm64: dts: juno: Fix UART frequency
IB/iser: Fix dma_nents type definition
m68k: Call timer_interrupt() with interrupts disabled
net: ethtool: Add back transceiver type
net: phy: Keep reporting transceiver type
can, slip: Protect tty->disc_data in write_wakeup and close with RCU
firestream: fix memory leaks
net: cxgb3_main: Add CAP_NET_ADMIN check to CHELSIO_GET_MEM
net, ip6_tunnel: fix namespaces move
net, ip_tunnel: fix namespaces move
net_sched: fix datalen for ematch
tcp_bbr: improve arithmetic division in bbr_update_bw()
net: usb: lan78xx: Add .ndo_features_check
gtp: make sure only SOCK_DGRAM UDP sockets are accepted
hwmon: (adt7475) Make volt2reg return same reg as reg2volt input
hwmon: (core) Simplify sysfs attribute name allocation
hwmon: Deal with errors from the thermal subsystem
hwmon: (core) Fix double-free in __hwmon_device_register()
hwmon: (core) Do not use device managed functions for memory allocations
Input: keyspan-remote - fix control-message timeouts
ARM: 8950/1: ftrace/recordmcount: filter relocation types
mmc: tegra: fix SDR50 tuning override
mmc: sdhci: fix minimum clock rate for v3 controller
Input: sur40 - fix interface sanity checks
Input: gtco - fix endpoint sanity check
Input: aiptek - fix endpoint sanity check
Input: pegasus_notetaker - fix endpoint sanity check
Input: sun4i-ts - add a check for devm_thermal_zone_of_sensor_register
hwmon: (nct7802) Fix voltage limits to wrong registers
scsi: RDMA/isert: Fix a recently introduced regression related to logout
tracing: xen: Ordered comparison of function pointers
do_last(): fetch directory ->i_mode and ->i_uid before it's too late
Documentation: Document arm64 kpti control
arm64: kpti: Whitelist Cortex-A CPUs that don't implement the CSV3 field
coresight: etb10: Do not call smp_processor_id from preemptible
coresight: tmc-etf: Do not call smp_processor_id from preemptible
libertas: Fix two buffer overflows at parsing bss descriptor
bcache: silence static checker warning
scsi: iscsi: Avoid potential deadlock in iscsi_if_rx func
md: Avoid namespace collision with bitmap API
bitmap: Add bitmap_alloc(), bitmap_zalloc() and bitmap_free()
netfilter: ipset: use bitmap infrastructure completely
net/x25: fix nonblocking connect
Linux 4.9.212
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I2e83a05c5f119a7467a4d6984045d45d0c06b764
commit c42b65e363ce97a828f81b59033c3558f8fa7f70 upstream.
A lot of code become ugly because of open coding allocations for bitmaps.
Introduce three helpers to allow users be more clear of intention
and keep their code neat.
Note, due to multiple circular dependencies we may not provide
the helpers as inliners. For now we keep them exported and, perhaps,
at some point in the future we will sort out header inclusion and
inheritance.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit ab9bb6318b0967671e0c9b6537c1537d51ca4f45 ]
Commit dfe2a77fd2 ("kfifo: fix kfifo_alloc() and kfifo_init()") made
the kfifo code round the number of elements up. That was good for
__kfifo_alloc(), but it's actually wrong for __kfifo_init().
The difference? __kfifo_alloc() will allocate the rounded-up number of
elements, but __kfifo_init() uses an allocation done by the caller. We
can't just say "use more elements than the caller allocated", and have
to round down.
The good news? All the normal cases will be using power-of-two arrays
anyway, and most users of kfifo's don't use kfifo_init() at all, but one
of the helper macros to declare a KFIFO that enforce the proper
power-of-two behavior. But it looks like at least ibmvscsis might be
affected.
The bad news? Will Deacon refers to an old thread and points points out
that the memory ordering in kfifo's is questionable. See
https://lore.kernel.org/lkml/20181211034032.32338-1-yuleixzhang@tencent.com/
for more.
Fixes: dfe2a77fd2 ("kfifo: fix kfifo_alloc() and kfifo_init()")
Reported-by: laokz <laokz@foxmail.com>
Cc: Stefani Seibold <stefani@seibold.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Greg KH <greg@kroah.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 9dea44c91469512d346e638694c22c30a5273992 ]
devm_ioremap_resource() does not currently take 'const' arguments,
which results in a warning from the first driver trying to do it
anyway:
drivers/gpio/gpio-amd-fch.c: In function 'amd_fch_gpio_probe':
drivers/gpio/gpio-amd-fch.c:171:49: error: passing argument 2 of 'devm_ioremap_resource' discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]
priv->base = devm_ioremap_resource(&pdev->dev, &amd_fch_gpio_iores);
^~~~~~~~~~~~~~~~~~~
Change the prototype to allow it, as there is no real reason not to.
Fixes: 9bb2e0452508 ("gpio: amd: Make resource struct const")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20190628150049.1108048-1-arnd@arndb.de
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviwed-By: Enrico Weigelt <info@metux.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Merge 4.9.210 into android-4.9-q
Changes in 4.9.210
kobject: Export kobject_get_unless_zero()
chardev: Avoid potential use-after-free in 'chrdev_open()'
usb: chipidea: host: Disable port power only if previously enabled
ALSA: usb-audio: Apply the sample rate quirk for Bose Companion 5
tcp: minimize false-positives on TCP/GRO check
kernel/trace: Fix do not unregister tracepoints when register sched_migrate_task fail
tracing: Have stack tracer compile when MCOUNT_INSN_SIZE is not defined
HID: Fix slab-out-of-bounds read in hid_field_extract
HID: uhid: Fix returning EPOLLOUT from uhid_char_poll
HID: hid-input: clear unmapped usages
Input: add safety guards to input_set_keycode()
drm/dp_mst: correct the shifting in DP_REMOTE_I2C_READ
can: gs_usb: gs_usb_probe(): use descriptors of current altsetting
can: mscan: mscan_rx_poll(): fix rx path lockup when returning from polling to irq mode
can: can_dropped_invalid_skb(): ensure an initialized headroom in outgoing CAN sk_buffs
staging: vt6656: set usb_set_intfdata on driver fail.
USB: serial: option: add ZLP support for 0x1bc7/0x9010
usb: musb: fix idling for suspend after disconnect interrupt
usb: musb: Disable pullup at init
usb: musb: dma: Correct parameter passed to IRQ handler
staging: comedi: adv_pci1710: fix AI channels 16-31 for PCI-1713
staging: rtl8188eu: Add device code for TP-Link TL-WN727N v5.21
tty: link tty and port before configuring it as console
tty: always relink the port
mwifiex: fix possible heap overflow in mwifiex_process_country_ie()
mwifiex: pcie: Fix memory leak in mwifiex_pcie_alloc_cmdrsp_buf
scsi: bfa: release allocated memory in case of error
rtl8xxxu: prevent leaking urb
USB: Fix: Don't skip endpoint descriptors with maxpacket=0
netfilter: arp_tables: init netns pointer in xt_tgchk_param struct
netfilter: ipset: avoid null deref when IPSET_ATTR_LINENO is present
drm/i915/gen9: Clear residual context state on context switch
Linux 4.9.210
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I729c1f8c803f15426daa228d35e03307e9ff01f0
commit c70c176ff8c3ff0ac6ef9a831cd591ea9a66bd1a upstream.
Make the function available for outside use and fortify it against NULL
kobject.
CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge 4.9.208 into android-4.9-q
Changes in 4.9.208
btrfs: skip log replay on orphaned roots
btrfs: do not leak reloc root if we fail to read the fs root
btrfs: handle ENOENT in btrfs_uuid_tree_iterate
ALSA: pcm: Avoid possible info leaks from PCM stream buffers
ALSA: hda/ca0132 - Keep power on during processing DSP response
ALSA: hda/ca0132 - Avoid endless loop
drm: mst: Fix query_payload ack reply struct
drm/bridge: analogix-anx78xx: silence -EPROBE_DEFER warnings
iio: light: bh1750: Resolve compiler warning and make code more readable
spi: Add call to spi_slave_abort() function when spidev driver is released
staging: rtl8192u: fix multiple memory leaks on error path
staging: rtl8188eu: fix possible null dereference
rtlwifi: prevent memory leak in rtl_usb_probe
libertas: fix a potential NULL pointer dereference
IB/iser: bound protection_sg size by data_sg size
media: am437x-vpfe: Setting STD to current value is not an error
media: i2c: ov2659: fix s_stream return value
media: i2c: ov2659: Fix missing 720p register config
media: ov6650: Fix stored frame format not in sync with hardware
tools/power/cpupower: Fix initializer override in hsw_ext_cstates
usb: renesas_usbhs: add suspend event support in gadget mode
hwrng: omap3-rom - Call clk_disable_unprepare() on exit only if not idled
regulator: max8907: Fix the usage of uninitialized variable in max8907_regulator_probe()
media: flexcop-usb: fix NULL-ptr deref in flexcop_usb_transfer_init()
media: cec-funcs.h: add status_req checks
samples: pktgen: fix proc_cmd command result check logic
mwifiex: pcie: Fix memory leak in mwifiex_pcie_init_evt_ring
media: ti-vpe: vpe: fix a v4l2-compliance warning about invalid pixel format
media: ti-vpe: vpe: fix a v4l2-compliance failure about frame sequence number
media: ti-vpe: vpe: Make sure YUYV is set as default format
extcon: sm5502: Reset registers during initialization
x86/mm: Use the correct function type for native_set_fixmap()
perf test: Report failure for mmap events
perf report: Add warning when libunwind not compiled in
usb: usbfs: Suppress problematic bind and unbind uevents.
iio: adc: max1027: Reset the device at probe time
Bluetooth: hci_core: fix init for HCI_USER_CHANNEL
x86/mce: Lower throttling MCE messages' priority to warning
drm/gma500: fix memory disclosures due to uninitialized bytes
rtl8xxxu: fix RTL8723BU connection failure issue after warm reboot
x86/ioapic: Prevent inconsistent state when moving an interrupt
arm64: psci: Reduce the waiting time for cpu_psci_cpu_kill()
libata: Ensure ata_port probe has completed before detach
pinctrl: sh-pfc: sh7734: Fix duplicate TCLK1_B
Bluetooth: Fix advertising duplicated flags
bnx2x: Fix PF-VF communication over multi-cos queues.
spi: img-spfi: fix potential double release
ALSA: timer: Limit max amount of slave instances
rtlwifi: fix memory leak in rtl92c_set_fw_rsvdpagepkt()
perf probe: Fix to find range-only function instance
perf probe: Fix to list probe event with correct line number
perf probe: Walk function lines in lexical blocks
perf probe: Fix to probe an inline function which has no entry pc
perf probe: Fix to show ranges of variables in functions without entry_pc
perf probe: Fix to show inlined function callsite without entry_pc
perf probe: Fix to probe a function which has no entry pc
perf probe: Skip overlapped location on searching variables
perf probe: Return a better scope DIE if there is no best scope
perf probe: Fix to show calling lines of inlined functions
perf probe: Skip end-of-sequence and non statement lines
perf probe: Filter out instances except for inlined subroutine and subprogram
ath10k: fix get invalid tx rate for Mesh metric
media: pvrusb2: Fix oops on tear-down when radio support is not present
media: si470x-i2c: add missed operations in remove
EDAC/ghes: Fix grain calculation
spi: pxa2xx: Add missed security checks
ASoC: rt5677: Mark reg RT5677_PWR_ANLG2 as volatile
s390/disassembler: don't hide instruction addresses
parport: load lowlevel driver if ports not found
cpufreq: Register drivers only after CPU devices have been registered
x86/crash: Add a forward declaration of struct kimage
iwlwifi: mvm: fix unaligned read of rx_pkt_status
spi: tegra20-slink: add missed clk_unprepare
mmc: tmio: Add MMC_CAP_ERASE to allow erase/discard/trim requests
btrfs: don't prematurely free work in end_workqueue_fn()
btrfs: don't prematurely free work in run_ordered_work()
spi: st-ssc4: add missed pm_runtime_disable
x86/insn: Add some Intel instructions to the opcode map
iwlwifi: check kasprintf() return value
fbtft: Make sure string is NULL terminated
crypto: sun4i-ss - Fix 64-bit size_t warnings on sun4i-ss-hash.c
crypto: vmx - Avoid weird build failures
libtraceevent: Fix memory leakage in copy_filter_type
net: phy: initialise phydev speed and duplex sanely
btrfs: don't prematurely free work in reada_start_machine_worker()
Revert "mmc: sdhci: Fix incorrect switch to HS mode"
usb: xhci: Fix build warning seen with CONFIG_PM=n
btrfs: don't double lock the subvol_sem for rename exchange
btrfs: do not call synchronize_srcu() in inode_tree_del
btrfs: return error pointer from alloc_test_extent_buffer
btrfs: abort transaction after failed inode updates in create_subvol
Btrfs: fix removal logic of the tree mod log that leads to use-after-free issues
af_packet: set defaule value for tmo
fjes: fix missed check in fjes_acpi_add
mod_devicetable: fix PHY module format
net: hisilicon: Fix a BUG trigered by wrong bytes_compl
net: nfc: nci: fix a possible sleep-in-atomic-context bug in nci_uart_tty_receive()
net: qlogic: Fix error paths in ql_alloc_large_buffers()
net: usb: lan78xx: Fix suspend/resume PHY register access error
sctp: fully initialize v4 addr in some functions
net: dst: Force 4-byte alignment of dst_metrics
usbip: Fix error path of vhci_recv_ret_submit()
USB: EHCI: Do not return -EPIPE when hub is disconnected
platform/x86: hp-wmi: Make buffer for HPWMI_FEATURE2_QUERY 128 bytes
staging: comedi: gsc_hpdi: check dma_alloc_coherent() return value
ext4: fix ext4_empty_dir() for directories with holes
ext4: check for directory entries too close to block end
powerpc/irq: fix stack overflow verification
mmc: sdhci-of-esdhc: fix P2020 errata handling
perf probe: Fix to show function entry line as probe-able
scsi: mpt3sas: Fix clear pending bit in ioctl status
scsi: lpfc: Fix locking on mailbox command completion
Input: atmel_mxt_ts - disable IRQ across suspend
iommu/tegra-smmu: Fix page tables in > 4 GiB memory
scsi: target: compare full CHAP_A Algorithm strings
scsi: lpfc: Fix SLI3 hba in loop mode not discovering devices
scsi: csiostor: Don't enable IRQs too early
powerpc/pseries: Mark accumulate_stolen_time() as notrace
powerpc/pseries: Don't fail hash page table insert for bolted mapping
dma-debug: add a schedule point in debug_dma_dump_mappings()
clocksource/drivers/asm9260: Add a check for of_clk_get
powerpc/security/book3s64: Report L1TF status in sysfs
powerpc/book3s64/hash: Add cond_resched to avoid soft lockup warning
jbd2: Fix statistics for the number of logged blocks
scsi: tracing: Fix handling of TRANSFER LENGTH == 0 for READ(6) and WRITE(6)
scsi: lpfc: Fix duplicate unreg_rpi error in port offline flow
clk: qcom: Allow constant ratio freq tables for rcg
irqchip/irq-bcm7038-l1: Enable parent IRQ if necessary
irqchip: ingenic: Error out if IRQ domain creation failed
fs/quota: handle overflows of sysctl fs.quota.* and report as unsigned long
scsi: lpfc: fix: Coverity: lpfc_cmpl_els_rsp(): Null pointer dereferences
scsi: ufs: fix potential bug which ends in system hang
powerpc/pseries/cmm: Implement release() function for sysfs device
powerpc/security: Fix wrong message when RFI Flush is disable
scsi: atari_scsi: sun3_scsi: Set sg_tablesize to 1 instead of SG_NONE
clk: pxa: fix one of the pxa RTC clocks
bcache: at least try to shrink 1 node in bch_mca_scan()
HID: Improve Windows Precision Touchpad detection.
ext4: work around deleting a file with i_nlink == 0 safely
scsi: pm80xx: Fix for SATA device discovery
scsi: scsi_debug: num_tgts must be >= 0
scsi: target: iscsi: Wait for all commands to finish before freeing a session
gpio: mpc8xxx: Don't overwrite default irq_set_type callback
scripts/kallsyms: fix definitely-lost memory leak
cdrom: respect device capabilities during opening action
perf regs: Make perf_reg_name() return "unknown" instead of NULL
libfdt: define INT32_MAX and UINT32_MAX in libfdt_env.h
s390/cpum_sf: Check for SDBT and SDB consistency
ocfs2: fix passing zero to 'PTR_ERR' warning
kernel: sysctl: make drop_caches write-only
x86/mce: Fix possibly incorrect severity calculation on AMD
net, sysctl: Fix compiler warning when only cBPF is present
ALSA: hda - Downgrade error message for single-cmd fallback
perf strbuf: Remove redundant va_end() in strbuf_addv()
Make filldir[64]() verify the directory entry filename is valid
filldir[64]: remove WARN_ON_ONCE() for bad directory entries
netfilter: ebtables: compat: reject all padding in matches/watchers
6pack,mkiss: fix possible deadlock
netfilter: bridge: make sure to pull arp header in br_nf_forward_arp()
net: icmp: fix data-race in cmp_global_allow()
hrtimer: Annotate lockless access to timer->state
tty/serial: atmel: fix out of range clock divider handling
pinctrl: baytrail: Really serialize all register accesses
mmc: sdhci: Update the tuning failed messages to pr_debug level
net: ena: fix napi handler misbehavior when the napi budget is zero
vhost/vsock: accept only packets with the right dst_cid
tcp/dccp: fix possible race __inet_lookup_established()
tcp: do not send empty skb from tcp_write_xmit()
gtp: fix wrong condition in gtp_genl_dump_pdp()
gtp: avoid zero size hashtable
Linux 4.9.208
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit 9ff6aa027dbb98755f0265695354f2dd07c0d1ce ]
debug_dma_dump_mappings() can take a lot of cpu cycles :
lpk43:/# time wc -l /sys/kernel/debug/dma-api/dump
163435 /sys/kernel/debug/dma-api/dump
real 0m0.463s
user 0m0.003s
sys 0m0.459s
Let's add a cond_resched() to avoid holding cpu for too long.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Corentin Labbe <clabbe@baylibre.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Merge 4.9.207 into android-4.9-q
Changes in 4.9.207
arm64: tegra: Fix 'active-low' warning for Jetson TX1 regulator
usb: gadget: u_serial: add missing port entry locking
tty: serial: fsl_lpuart: use the sg count from dma_map_sg
tty: serial: msm_serial: Fix flow control
serial: pl011: Fix DMA ->flush_buffer()
serial: serial_core: Perform NULL checks for break_ctl ops
serial: ifx6x60: add missed pm_runtime_disable
autofs: fix a leak in autofs_expire_indirect()
RDMA/hns: Correct the value of HNS_ROCE_HEM_CHUNK_LEN
exportfs_decode_fh(): negative pinned may become positive without the parent locked
audit_get_nd(): don't unlock parent too early
NFC: nxp-nci: Fix NULL pointer dereference after I2C communication error
Input: cyttsp4_core - fix use after free bug
ALSA: pcm: Fix stream lock usage in snd_pcm_period_elapsed()
rsxx: add missed destroy_workqueue calls in remove
net: ep93xx_eth: fix mismatch of request_mem_region in remove
serial: core: Allow processing sysrq at port unlock time
cxgb4vf: fix memleak in mac_hlist initialization
iwlwifi: mvm: Send non offchannel traffic via AP sta
ARM: 8813/1: Make aligned 2-byte getuser()/putuser() atomic on ARMv6+
net/mlx5: Release resource on error flow
extcon: max8997: Fix lack of path setting in USB device mode
clk: rockchip: fix rk3188 sclk_smc gate data
clk: rockchip: fix rk3188 sclk_mac_lbtest parameter ordering
ARM: dts: rockchip: Fix rk3288-rock2 vcc_flash name
dlm: fix missing idr_destroy for recover_idr
MIPS: SiByte: Enable ZONE_DMA32 for LittleSur
scsi: zfcp: drop default switch case which might paper over missing case
pinctrl: qcom: ssbi-gpio: fix gpio-hog related boot issues
Staging: iio: adt7316: Fix i2c data reading, set the data field
regulator: Fix return value of _set_load() stub
MIPS: OCTEON: octeon-platform: fix typing
math-emu/soft-fp.h: (_FP_ROUND_ZERO) cast 0 to void to fix warning
rtc: max8997: Fix the returned value in case of error in 'max8997_rtc_read_alarm()'
rtc: dt-binding: abx80x: fix resistance scale
ARM: dts: exynos: Use Samsung SoC specific compatible for DWC2 module
media: pulse8-cec: return 0 when invalidating the logical address
dmaengine: coh901318: Fix a double-lock bug
dmaengine: coh901318: Remove unused variable
usb: dwc3: don't log probe deferrals; but do log other error codes
ACPI: fix acpi_find_child_device() invocation in acpi_preset_companion()
dma-mapping: fix return type of dma_set_max_seg_size()
altera-stapl: check for a null key before strcasecmp'ing it
serial: imx: fix error handling in console_setup
i2c: imx: don't print error message on probe defer
dlm: NULL check before kmem_cache_destroy is not needed
ARM: debug: enable UART1 for socfpga Cyclone5
nfsd: fix a warning in __cld_pipe_upcall()
ARM: OMAP1/2: fix SoC name printing
net/x25: fix called/calling length calculation in x25_parse_address_block
net/x25: fix null_x25_address handling
ARM: dts: mmp2: fix the gpio interrupt cell number
ARM: dts: realview-pbx: Fix duplicate regulator nodes
tcp: fix off-by-one bug on aborting window-probing socket
tcp: fix SNMP TCP timeout under-estimation
modpost: skip ELF local symbols during section mismatch check
kbuild: fix single target build for external module
mtd: fix mtd_oobavail() incoherent returned value
ARM: dts: pxa: clean up USB controller nodes
clk: sunxi-ng: h3/h5: Fix CSI_MCLK parent
ARM: dts: realview: Fix some more duplicate regulator nodes
dlm: fix invalid cluster name warning
net/mlx4_core: Fix return codes of unsupported operations
powerpc/math-emu: Update macros from GCC
MIPS: OCTEON: cvmx_pko_mem_debug8: use oldest forward compatible definition
nfsd: Return EPERM, not EACCES, in some SETATTR cases
tty: Don't block on IO when ldisc change is pending
media: stkwebcam: Bugfix for wrong return values
mlx4: Use snprintf instead of complicated strcpy
ARM: dts: sunxi: Fix PMU compatible strings
sched/fair: Scale bandwidth quota and period without losing quota/period ratio precision
fuse: verify nlink
fuse: verify attributes
ALSA: pcm: oss: Avoid potential buffer overflows
Input: goodix - add upside-down quirk for Teclast X89 tablet
coresight: etm4x: Fix input validation for sysfs.
x86/PCI: Avoid AMD FCH XHCI USB PME# from D0 defect
CIFS: Fix NULL-pointer dereference in smb2_push_mandatory_locks
CIFS: Fix SMB2 oplock break processing
tty: vt: keyboard: reject invalid keycodes
can: slcan: Fix use-after-free Read in slcan_open
jbd2: Fix possible overflow in jbd2_log_space_left()
drm/i810: Prevent underflow in ioctl
KVM: x86: do not modify masked bits of shared MSRs
KVM: x86: fix presentation of TSX feature in ARCH_CAPABILITIES
crypto: crypto4xx - fix double-free in crypto4xx_destroy_sdr
crypto: ccp - fix uninitialized list head
crypto: ecdh - fix big endian bug in ECC library
crypto: user - fix memory leak in crypto_report
spi: atmel: Fix CS high support
RDMA/qib: Validate ->show()/store() callbacks before calling them
thermal: Fix deadlock in thermal thermal_zone_device_check
KVM: x86: fix out-of-bounds write in KVM_GET_EMULATED_CPUID (CVE-2019-19332)
appletalk: Fix potential NULL pointer dereference in unregister_snap_client
appletalk: Set error code if register_snap_client failed
usb: gadget: configfs: Fix missing spin_lock_init()
USB: uas: honor flag to avoid CAPACITY16
USB: uas: heed CAPACITY_HEURISTICS
usb: Allow USB device to be warm reset in suspended state
staging: rtl8188eu: fix interface sanity check
staging: rtl8712: fix interface sanity check
staging: gigaset: fix general protection fault on probe
staging: gigaset: fix illegal free on probe errors
staging: gigaset: add endpoint-type sanity check
xhci: Increase STS_HALT timeout in xhci_suspend()
ARM: dts: pandora-common: define wl1251 as child node of mmc3
iio: humidity: hdc100x: fix IIO_HUMIDITYRELATIVE channel reporting
USB: atm: ueagle-atm: add missing endpoint check
USB: idmouse: fix interface sanity checks
USB: serial: io_edgeport: fix epic endpoint lookup
USB: adutux: fix interface sanity check
usb: core: urb: fix URB structure initialization function
usb: mon: Fix a deadlock in usbmon between mmap and read
mtd: spear_smi: Fix Write Burst mode
virtio-balloon: fix managed page counts when migrating pages between zones
btrfs: check page->mapping when loading free space cache
btrfs: Remove btrfs_bio::flags member
Btrfs: send, skip backreference walking for extents with many references
btrfs: record all roots for rename exchange on a subvol
rtlwifi: rtl8192de: Fix missing code to retrieve RX buffer address
rtlwifi: rtl8192de: Fix missing callback that tests for hw release of buffer
rtlwifi: rtl8192de: Fix missing enable interrupt flag
lib: raid6: fix awk build warnings
ALSA: hda - Fix pending unsol events at shutdown
workqueue: Fix spurious sanity check failures in destroy_workqueue()
workqueue: Fix pwq ref leak in rescuer_thread()
ASoC: Jack: Fix NULL pointer dereference in snd_soc_jack_report
blk-mq: avoid sysfs buffer overflow with too many CPU cores
cgroup: pids: use atomic64_t for pids->limit
ar5523: check NULL before memcpy() in ar5523_cmd()
media: bdisp: fix memleak on release
media: radio: wl1273: fix interrupt masking on release
cpuidle: Do not unset the driver if it is there already
PM / devfreq: Lock devfreq in trans_stat_show
ACPI: OSL: only free map once in osl.c
ACPI: bus: Fix NULL pointer check in acpi_bus_get_private_data()
ACPI: PM: Avoid attaching ACPI PM domain to certain devices
pinctrl: samsung: Fix device node refcount leaks in S3C24xx wakeup controller init
pinctrl: samsung: Fix device node refcount leaks in init code
mmc: host: omap_hsmmc: add code for special init of wl1251 to get rid of pandora_wl1251_init_card
ppdev: fix PPGETTIME/PPSETTIME ioctls
powerpc: Allow 64bit VDSO __kernel_sync_dicache to work across ranges >4GB
video/hdmi: Fix AVI bar unpack
quota: Check that quota is not dirty before release
ext2: check err when partial != NULL
quota: fix livelock in dquot_writeback_dquots
scsi: zfcp: trace channel log even for FCP command responses
usb: xhci: only set D3hot for pci device
xhci: Fix memory leak in xhci_add_in_port()
xhci: make sure interrupts are restored to correct state
iio: adis16480: Add debugfs_reg_access entry
Btrfs: fix negative subv_writers counter and data space leak after buffered write
omap: pdata-quirks: remove openpandora quirks for mmc3 and wl1251
scsi: lpfc: Cap NPIV vports to 256
e100: Fix passing zero to 'PTR_ERR' warning in e100_load_ucode_wait
x86/MCE/AMD: Turn off MC4_MISC thresholding on all family 0x15 models
x86/MCE/AMD: Carve out the MC4_MISC thresholding quirk
ath10k: fix fw crash by moving chip reset after napi disabled
ARM: dts: omap3-tao3530: Fix incorrect MMC card detection GPIO polarity
pinctrl: samsung: Fix device node refcount leaks in S3C64xx wakeup controller init
scsi: qla2xxx: Fix DMA unmap leak
scsi: qla2xxx: Fix session lookup in qlt_abort_work()
scsi: qla2xxx: Fix qla24xx_process_bidir_cmd()
scsi: qla2xxx: Always check the qla2x00_wait_for_hba_online() return value
powerpc: Fix vDSO clock_getres()
reiserfs: fix extended attributes on the root directory
firmware: qcom: scm: Ensure 'a0' status code is treated as signed
mm/shmem.c: cast the type of unmap_start to u64
ext4: fix a bug in ext4_wait_for_tail_page_commit
blk-mq: make sure that line break can be printed
workqueue: Fix missing kfree(rescuer) in destroy_workqueue()
sunrpc: fix crash when cache_head become valid before update
net/mlx5e: Fix SFF 8472 eeprom length
kernel/module.c: wakeup processes in module_wq on module unload
nvme: host: core: fix precedence of ternary operator
net: bridge: deny dev_set_mac_address() when unregistering
net: ethernet: ti: cpsw: fix extra rx interrupt
openvswitch: support asymmetric conntrack
tcp: md5: fix potential overestimation of TCP option space
tipc: fix ordering of tipc module init and exit routine
inet: protect against too small mtu values.
tcp: fix rejected syncookies due to stale timestamps
tcp: tighten acceptance of ACKs not matching a child socket
tcp: Protect accesses to .ts_recent_stamp with {READ,WRITE}_ONCE()
Revert "regulator: Defer init completion for a while after late_initcall"
PCI: Fix Intel ACS quirk UPDCR register address
PCI/MSI: Fix incorrect MSI-X masking on resume
xtensa: fix TLB sanity checker
CIFS: Respect O_SYNC and O_DIRECT flags during reconnect
ARM: dts: s3c64xx: Fix init order of clock providers
ARM: tegra: Fix FLOW_CTLR_HALT register clobbering by tegra_resume()
vfio/pci: call irq_bypass_unregister_producer() before freeing irq
dma-buf: Fix memory leak in sync_file_merge()
dm btree: increase rebalance threshold in __rebalance2()
scsi: iscsi: Fix a potential deadlock in the timeout handler
drm/radeon: fix r1xx/r2xx register checker for POT textures
xhci: fix USB3 device initiated resume race with roothub autosuspend
net: stmmac: use correct DMA buffer size in the RX descriptor
net: stmmac: don't stop NAPI processing when dropping a packet
Linux 4.9.207
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit 702600eef73033ddd4eafcefcbb6560f3e3a90f7 upstream.
Newer versions of awk spit out these fun warnings:
awk: ../lib/raid6/unroll.awk:16: warning: regexp escape sequence `\#' is not a known regexp operator
As commit 700c1018b86d ("x86/insn: Fix awk regexp warnings") showed, it
turns out that there are a number of awk strings that do not need to be
escaped and newer versions of awk now warn about this.
Fix the string up so that no warning is produced. The exact same kernel
module gets created before and after this patch, showing that it wasn't
needed.
Link: https://lore.kernel.org/r/20191206152600.GA75093@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge 4.9.206 into android-4.9-q
Changes in 4.9.206
ASoC: compress: fix unsigned integer overflow check
ASoC: kirkwood: fix external clock probe defer
clk: samsung: exynos5420: Preserve PLL configuration during suspend/resume
reset: fix reset_control_ops kerneldoc comment
clk: at91: avoid sleeping early
net: fec: add missed clk_disable_unprepare in remove
can: peak_usb: report bus recovery as well
can: c_can: D_CAN: c_can_chip_config(): perform a sofware reset on open
watchdog: meson: Fix the wrong value of left time
scripts/gdb: fix debugging modules compiled with hot/cold partitioning
mac80211: fix station inactive_time shortly after boot
block: drbd: remove a stray unlock in __drbd_send_protocol()
pwm: bcm-iproc: Prevent unloading the driver module while in use
scsi: lpfc: Fix dif and first burst use in write commands
ARM: debug-imx: only define DEBUG_IMX_UART_PORT if needed
ARM: dts: imx53-voipac-dmm-668: Fix memory node duplication
parisc: Fix serio address output
parisc: Fix HP SDC hpa address output
arm64: mm: Prevent mismatched 52-bit VA support
arm64: smp: Handle errors reported by the firmware
PM / AVS: SmartReflex: NULL check before some freeing functions is not needed
ARM: ks8695: fix section mismatch warning
ACPI / LPSS: Ignore acpi_device_fix_up_power() return value
crypto: user - support incremental algorithm dumps
mwifiex: fix potential NULL dereference and use after free
mwifiex: debugfs: correct histogram spacing, formatting
rtl818x: fix potential use after free
xfs: require both realtime inodes to mount
ubi: Put MTD device after it is not used
ubi: Do not drop UBI device reference before using
microblaze: adjust the help to the real behavior
microblaze: move "... is ready" messages to arch/microblaze/Makefile
gpiolib: Fix return value of gpio_to_desc() stub if !GPIOLIB
VSOCK: bind to random port for VMADDR_PORT_ANY
mtd: rawnand: sunxi: Write pageprog related opcodes to WCMD_SET
btrfs: only track ref_heads in delayed_ref_updates
HID: intel-ish-hid: fixes incorrect error handling
xen/pciback: Check dev_data before using it
pinctrl: xway: fix gpio-hog related boot issues
net/mlx5: Continue driver initialization despite debugfs failure
KVM: s390: unregister debug feature on failing arch init
pinctrl: sh-pfc: sh7264: Fix PFCR3 and PFCR0 register configuration
pinctrl: sh-pfc: sh7734: Fix shifted values in IPSR10
HID: doc: fix wrong data structure reference for UHID_OUTPUT
dm flakey: Properly corrupt multi-page bios.
gfs2: take jdata unstuff into account in do_grow
xfs: Align compat attrlist_by_handle with native implementation.
xfs: Fix bulkstat compat ioctls on x32 userspace.
IB/qib: Fix an error code in qib_sdma_verbs_send()
powerpc/book3s/32: fix number of bats in p/v_block_mapped()
powerpc/xmon: fix dump_segments()
drivers/regulator: fix a missing check of return value
serial: max310x: Fix tx_empty() callback
openrisc: Fix broken paths to arch/or32
RDMA/srp: Propagate ib_post_send() failures to the SCSI mid-layer
scsi: qla2xxx: deadlock by configfs_depend_item
scsi: csiostor: fix incorrect dma device in case of vport
ath6kl: Only use match sets when firmware supports it
ath6kl: Fix off by one error in scan completion
powerpc/prom: fix early DEBUG messages
powerpc/mm: Make NULL pointer deferences explicit on bad page faults.
powerpc/44x/bamboo: Fix PCI range
vfio/spapr_tce: Get rid of possible infinite loop
powerpc/powernv/eeh/npu: Fix uninitialized variables in opal_pci_eeh_freeze_status
drbd: ignore "all zero" peer volume sizes in handshake
drbd: reject attach of unsuitable uuids even if connected
drbd: do not block when adjusting "disk-options" while IO is frozen
drbd: fix print_st_err()'s prototype to match the definition
regulator: tps65910: fix a missing check of return value
powerpc/83xx: handle machine check caused by watchdog timer
powerpc/pseries: Fix node leak in update_lmb_associativity_index()
crypto: mxc-scc - fix build warnings on ARM64
pwm: clps711x: Fix period calculation
net/net_namespace: Check the return value of register_pernet_subsys()
um: Make GCOV depend on !KCOV
net: stmicro: fix a missing check of clk_prepare
net: dsa: bcm_sf2: Propagate error value from mdio_write
atl1e: checking the status of atl1e_write_phy_reg
tipc: fix a missing check of genlmsg_put
net/wan/fsl_ucc_hdlc: Avoid double free in ucc_hdlc_probe()
ocfs2: clear journal dirty flag after shutdown journal
vmscan: return NODE_RECLAIM_NOSCAN in node_reclaim() when CONFIG_NUMA is n
lib/genalloc.c: fix allocation of aligned buffer from non-aligned chunk
lib/genalloc.c: use vzalloc_node() to allocate the bitmap
drivers/base/platform.c: kmemleak ignore a known leak
lib/genalloc.c: include vmalloc.h
mtd: Check add_mtd_device() ret code
tipc: fix memory leak in tipc_nl_compat_publ_dump
net/core/neighbour: tell kmemleak about hash tables
net/core/neighbour: fix kmemleak minimal reference count for hash tables
sfc: suppress duplicate nvmem partition types in efx_ef10_mtd_probe
ip_tunnel: Make none-tunnel-dst tunnel port work with lwtunnel
decnet: fix DN_IFREQ_SIZE
tipc: fix skb may be leaky in tipc_link_input
sfc: initialise found bitmap in efx_ef10_mtd_probe
net: fix possible overflow in __sk_mem_raise_allocated()
sctp: don't compare hb_timer expire date before starting it
net: dev: Use unsigned integer as an argument to left-shift
iommu/amd: Fix NULL dereference bug in match_hid_uid
scsi: libsas: Support SATA PHY connection rate unmatch fixing during discovery
ACPI / APEI: Switch estatus pool to use vmalloc memory
scsi: libsas: Check SMP PHY control function result
powerpc/pseries/dlpar: Fix a missing check in dlpar_parse_cc_property()
mtd: Remove a debug trace in mtdpart.c
mm, gup: add missing refcount overflow checks on x86 and s390
clk: at91: fix update bit maps on CFG_MOR write
staging: rtl8192e: fix potential use after free
USB: serial: ftdi_sio: add device IDs for U-Blox C099-F9P
mei: bus: prefix device names on bus with the bus name
media: v4l2-ctrl: fix flags for DO_WHITE_BALANCE
net: macb: fix error format in dev_err()
pwm: Clear chip_data in pwm_put()
media: atmel: atmel-isc: fix asd memory allocation
macvlan: schedule bc_work even if error
openvswitch: fix flow command message size
slip: Fix use-after-free Read in slip_open
openvswitch: drop unneeded BUG_ON() in ovs_flow_cmd_build_info()
openvswitch: remove another BUG_ON()
tipc: fix link name length check
sctp: cache netns in sctp_ep_common
net: sched: fix `tc -s class show` no bstats on class with nolock subqueues
HID: core: check whether Usage Page item is after Usage ID items
hwrng: stm32 - fix unbalanced pm_runtime_enable
platform/x86: hp-wmi: Fix ACPI errors caused by too small buffer
net: fec: fix clock count mis-match
Linux 4.9.206
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit 35004f2e55807a1a1491db24ab512dd2f770a130 ]
Fixes build break on most ARM/ARM64 defconfigs:
lib/genalloc.c: In function 'gen_pool_add_virt':
lib/genalloc.c:190:10: error: implicit declaration of function 'vzalloc_node'; did you mean 'kzalloc_node'?
lib/genalloc.c:190:8: warning: assignment to 'struct gen_pool_chunk *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
lib/genalloc.c: In function 'gen_pool_destroy':
lib/genalloc.c:254:3: error: implicit declaration of function 'vfree'; did you mean 'kfree'?
Fixes: 6862d2fc8185 ('lib/genalloc.c: use vzalloc_node() to allocate the bitmap')
Cc: Huang Shijie <sjhuang@iluvatar.ai>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexey Skidanov <alexey.skidanov@intel.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 6862d2fc81859f88c1f3f660886427893f2b4f3f ]
Some devices may have big memory on chip, such as over 1G. In some
cases, the nbytes maybe bigger then 4M which is the bounday of the
memory buddy system (4K default).
So use vzalloc_node() to allocate the bitmap. Also use vfree to free
it.
Link: http://lkml.kernel.org/r/20181225015701.6289-1-sjhuang@iluvatar.ai
Signed-off-by: Huang Shijie <sjhuang@iluvatar.ai>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexey Skidanov <alexey.skidanov@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 52fbf1134d479234d7e64ba9dcbaea23405f229e ]
gen_pool_alloc_algo() uses different allocation functions implementing
different allocation algorithms. With gen_pool_first_fit_align()
allocation function, the returned address should be aligned on the
requested boundary.
If chunk start address isn't aligned on the requested boundary, the
returned address isn't aligned too. The only way to get properly
aligned address is to initialize the pool with chunks aligned on the
requested boundary. If want to have an ability to allocate buffers
aligned on different boundaries (for example, 4K, 1MB, ...), the chunk
start address should be aligned on the max possible alignment.
This happens because gen_pool_first_fit_align() looks for properly
aligned memory block without taking into account the chunk start address
alignment.
To fix this, we provide chunk start address to
gen_pool_first_fit_align() and change its implementation such that it
starts looking for properly aligned block with appropriate offset
(exactly as is done in CMA).
Link: https://lkml.kernel.org/lkml/a170cf65-6884-3592-1de9-4c235888cc8a@intel.com
Link: http://lkml.kernel.org/r/1541690953-4623-1-git-send-email-alexey.skidanov@intel.com
Signed-off-by: Alexey Skidanov <alexey.skidanov@intel.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Logan Gunthorpe <logang@deltatee.com>
Cc: Daniel Mentz <danielmentz@google.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Laura Abbott <labbott@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Merge 4.9.201 into android-4.9-q
Changes in 4.9.201
CDC-NCM: handle incomplete transfer of MTU
ipv4: Fix table id reference in fib_sync_down_addr
net: fix data-race in neigh_event_send()
net: usb: qmi_wwan: add support for DW5821e with eSIM support
NFC: fdp: fix incorrect free object
nfc: netlink: fix double device reference drop
NFC: st21nfca: fix double free
qede: fix NULL pointer deref in __qede_remove()
ALSA: timer: Fix incorrectly assigned timer instance
ALSA: bebob: fix to detect configured source of sampling clock for Focusrite Saffire Pro i/o series
ALSA: hda/ca0132 - Fix possible workqueue stall
mm: thp: handle page cache THP correctly in PageTransCompoundMap
mm, vmstat: hide /proc/pagetypeinfo from normal users
dump_stack: avoid the livelock of the dump_lock
perf tools: Fix time sorting
drm/radeon: fix si_enable_smc_cac() failed issue
ceph: fix use-after-free in __ceph_remove_cap()
iio: imu: adis16480: make sure provided frequency is positive
netfilter: nf_tables: Align nft_expr private data to 64-bit
netfilter: ipset: Fix an error code in ip_set_sockfn_get()
can: usb_8dev: fix use-after-free on disconnect
can: c_can: c_can_poll(): only read status register after status IRQ
can: peak_usb: fix a potential out-of-sync while decoding packets
can: gs_usb: gs_can_open(): prevent memory leak
can: peak_usb: fix slab info leak
configfs: Fix bool initialization/comparison
configfs: stash the data we need into configfs_buffer at open time
configfs_register_group() shouldn't be (and isn't) called in rmdirable parts
configfs: new object reprsenting tree fragments
configfs: provide exclusion between IO and removals
configfs: fix a deadlock in configfs_symlink()
usbip: stub_rx: fix static checker warning on unnecessary checks
usbip: Fix vhci_urb_enqueue() URB null transfer buffer error path
usbip: fix possibility of dereference by NULLL pointer in vhci_hcd.c
drivers: usb: usbip: Add missing break statement to switch
PCI: tegra: Enable Relaxed Ordering only for Tegra20 & Tegra30
dmaengine: xilinx_dma: Fix control reg update in vdma_channel_set_config
HID: intel-ish-hid: fix wrong error handling in ishtp_cl_alloc_tx_ring()
scsi: qla2xxx: fixup incorrect usage of host_byte
scsi: lpfc: Honor module parameter lpfc_use_adisc
ipvs: move old_secure_tcp into struct netns_ipvs
bonding: fix unexpected IFF_BONDING bit unset
usb: fsl: Check memory resource before releasing it
usb: gadget: udc: atmel: Fix interrupt storm in FIFO mode.
usb: gadget: composite: Fix possible double free memory bug
usb: gadget: configfs: fix concurrent issue between composite APIs
usb: dwc3: remove the call trace of USBx_GFLADJ
perf/x86/amd/ibs: Fix reading of the IBS OpData register and thus precise RIP validity
perf/x86/amd/ibs: Handle erratum #420 only on the affected CPU family (10h)
USB: Skip endpoints with 0 maxpacket length
RDMA/iw_cxgb4: Avoid freeing skb twice in arp failure case
scsi: qla2xxx: stop timer in shutdown path
fjes: Handle workqueue allocation failure
net: hisilicon: Fix "Trying to free already-free IRQ"
NFSv4: Don't allow a cached open with a revoked delegation
net: ethernet: arc: add the missed clk_disable_unprepare
igb: Fix constant media auto sense switching when no cable is connected
e1000: fix memory leaks
x86/apic: Move pending interrupt check code into it's own function
x86/apic: Drop logical_smp_processor_id() inline
x86/apic/32: Avoid bogus LDR warnings
can: flexcan: disable completely the ECC mechanism
mm/filemap.c: don't initiate writeback if mapping has no dirty pages
cgroup,writeback: don't switch wbs immediately on dead wbs if the memcg is dead
net: prevent load/store tearing on sk->sk_stamp
drm/i915: kick out cmd_parser specific structs from i915_drv.h
drm/i915: cleanup use of INSTR_CLIENT_MASK
drm/i915: return EACCES for check_cmd() failures
drm/i915: don't whitelist oacontrol in cmd parser
drm/i915: Use the precomputed value for whether to enable command parsing
drm/i915/cmdparser: Limit clflush to active cachelines
drm/i915/gtt: Add read only pages to gen8_pte_encode
drm/i915/gtt: Read-only pages for insert_entries on bdw+
drm/i915/gtt: Disable read-only support under GVT
drm/i915: Prevent writing into a read-only object via a GGTT mmap
drm/i915/cmdparser: Check reg_table_count before derefencing.
drm/i915/cmdparser: Do not check past the cmd length.
drm/i915: Silence smatch for cmdparser
drm/i915: Move engine->needs_cmd_parser to engine->flags
drm/i915: Rename gen7 cmdparser tables
drm/i915: Disable Secure Batches for gen6+
drm/i915: Remove Master tables from cmdparser
drm/i915: Add support for mandatory cmdparsing
drm/i915: Support ro ppgtt mapped cmdparser shadow buffers
drm/i915: Allow parsing of unsized batches
drm/i915: Add gen9 BCS cmdparsing
drm/i915/cmdparser: Use explicit goto for error paths
drm/i915/cmdparser: Add support for backward jumps
drm/i915/cmdparser: Ignore Length operands during command matching
drm/i915: Lower RM timeout to avoid DSI hard hangs
drm/i915/gen8+: Add RC6 CTX corruption WA
drm/i915/cmdparser: Fix jump whitelist clearing
Linux 4.9.201
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit 5cbf2fff3bba8d3c6a4d47c1754de1cf57e2b01f upstream.
In the current code, we use the atomic_cmpxchg() to serialize the output
of the dump_stack(), but this implementation suffers the thundering herd
problem. We have observed such kind of livelock on a Marvell cn96xx
board(24 cpus) when heavily using the dump_stack() in a kprobe handler.
Actually we can let the competitors to wait for the releasing of the
lock before jumping to atomic_cmpxchg(). This will definitely mitigate
the thundering herd problem. Thanks Linus for the suggestion.
[akpm@linux-foundation.org: fix comment]
Link: http://lkml.kernel.org/r/20191030031637.6025-1-haokexin@gmail.com
Fixes: b58d977432 ("dump_stack: serialize the output from dump_stack()")
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge 4.9.196 into android-4.9-q
Changes in 4.9.196
drm/bridge: tc358767: Increase AUX transfer length limit
video: ssd1307fb: Start page range at page_offset
drm/radeon: Fix EEH during kexec
gpu: drm: radeon: Fix a possible null-pointer dereference in radeon_connector_set_property()
ipmi_si: Only schedule continuously in the thread in maintenance mode
clk: qoriq: Fix -Wunused-const-variable
clk: sirf: Don't reference clk_init_data after registration
powerpc/rtas: use device model APIs and serialization during LPM
powerpc/futex: Fix warning: 'oldval' may be used uninitialized in this function
powerpc/pseries/mobility: use cond_resched when updating device tree
pinctrl: tegra: Fix write barrier placement in pmx_writel
vfio_pci: Restore original state on release
drm/amdgpu/si: fix ASIC tests
powerpc/64s/exception: machine check use correct cfar for late handler
powerpc/pseries: correctly track irq state in default idle
arm64: fix unreachable code issue with cmpxchg
clk: at91: select parent if main oscillator or bypass is enabled
scsi: core: Reduce memory required for SCSI logging
MIPS: tlbex: Explicitly cast _PAGE_NO_EXEC to a boolean
mfd: intel-lpss: Remove D3cold delay
PCI: tegra: Fix OF node reference leak
ARM: 8898/1: mm: Don't treat faults reported from cache maintenance as writes
HID: apple: Fix stuck function keys when using FN
security: smack: Fix possible null-pointer dereferences in smack_socket_sock_rcv_skb()
ARM: 8903/1: ensure that usable memory in bank 0 starts from a PMD-aligned address
fat: work around race with userspace's read via blockdev while mounting
hypfs: Fix error number left in struct pointer member
ocfs2: wait for recovering done after direct unlock request
kmemleak: increase DEBUG_KMEMLEAK_EARLY_LOG_SIZE default to 16K
ANDROID: binder: remove waitqueue when thread exits.
ANDROID: binder: synchronize_rcu() when using POLLFREE.
cxgb4:Fix out-of-bounds MSI-X info array access
hso: fix NULL-deref on tty open
ipv6: drop incoming packets having a v4mapped source address
net: ipv4: avoid mixed n_redirects and rate_tokens usage
net: qlogic: Fix memory leak in ql_alloc_large_buffers
net: Unpublish sk from sk_reuseport_cb before call_rcu
nfc: fix memory leak in llcp_sock_bind()
qmi_wwan: add support for Cinterion CLS8 devices
sch_dsmark: fix potential NULL deref in dsmark_init()
net/rds: Fix error handling in rds_ib_add_one()
xen-netfront: do not use ~0U as error return value for xennet_fill_frags()
sch_cbq: validate TCA_CBQ_WRROPT to avoid crash
ipv6: Handle missing host route in __ipv6_ifa_notify
Smack: Don't ignore other bprm->unsafe flags if LSM_UNSAFE_PTRACE is set
smack: use GFP_NOFS while holding inode_smack::smk_lock
NFC: fix attrs checks in netlink interface
Linux 4.9.196
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit b751c52bb587ae66f773b15204ef7a147467f4c7 ]
The current default value (400) is too low on many systems (e.g. some
ARM64 platform takes up 1000+ entries).
syzbot uses 16000 as default value, and has proved to be enough on beefy
configurations, so let's pick that value.
This consumes more RAM on boot (each entry is 160 bytes, so in total
~2.5MB of RAM), but the memory would later be freed (early_log is
__initdata).
Link: http://lkml.kernel.org/r/20190730154027.101525-1-drinkcat@chromium.org
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Suggested-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Joe Lawrence <joe.lawrence@redhat.com>
Cc: Uladzislau Rezki <urezki@gmail.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
commit 1ae2324f732c9c4e2fa4ebd885fa1001b70d52e1 upstream.
HalfSipHash, or hsiphash, is a shortened version of SipHash, which
generates 32-bit outputs using a weaker 64-bit key. It has *much* lower
security margins, and shouldn't be used for anything too sensitive, but
it could be used as a hashtable key function replacement, if the output
is never exposed, and if the security requirement is not too high.
The goal is to make this something that performance-critical jhash users
would be willing to use.
On 64-bit machines, HalfSipHash1-3 is slower than SipHash1-3, so we alias
SipHash1-3 to HalfSipHash1-3 on those systems.
64-bit x86_64:
[ 0.509409] test_siphash: SipHash2-4 cycles: 4049181
[ 0.510650] test_siphash: SipHash1-3 cycles: 2512884
[ 0.512205] test_siphash: HalfSipHash1-3 cycles: 3429920
[ 0.512904] test_siphash: JenkinsHash cycles: 978267
So, we map hsiphash() -> SipHash1-3
32-bit x86:
[ 0.509868] test_siphash: SipHash2-4 cycles: 14812892
[ 0.513601] test_siphash: SipHash1-3 cycles: 9510710
[ 0.515263] test_siphash: HalfSipHash1-3 cycles: 3856157
[ 0.515952] test_siphash: JenkinsHash cycles: 1148567
So, we map hsiphash() -> HalfSipHash1-3
hsiphash() is roughly 3 times slower than jhash(), but comes with a
considerable security improvement.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Jean-Philippe Aumasson <jeanphilippe.aumasson@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[bwh: Backported to 4.9 to avoid regression for WireGuard with only half
the siphash API present]
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 2c956a60778cbb6a27e0c7a8a52a91378c90e1d1 upstream.
SipHash is a 64-bit keyed hash function that is actually a
cryptographically secure PRF, like HMAC. Except SipHash is super fast,
and is meant to be used as a hashtable keyed lookup function, or as a
general PRF for short input use cases, such as sequence numbers or RNG
chaining.
For the first usage:
There are a variety of attacks known as "hashtable poisoning" in which an
attacker forms some data such that the hash of that data will be the
same, and then preceeds to fill up all entries of a hashbucket. This is
a realistic and well-known denial-of-service vector. Currently
hashtables use jhash, which is fast but not secure, and some kind of
rotating key scheme (or none at all, which isn't good). SipHash is meant
as a replacement for jhash in these cases.
There are a modicum of places in the kernel that are vulnerable to
hashtable poisoning attacks, either via userspace vectors or network
vectors, and there's not a reliable mechanism inside the kernel at the
moment to fix it. The first step toward fixing these issues is actually
getting a secure primitive into the kernel for developers to use. Then
we can, bit by bit, port things over to it as deemed appropriate.
While SipHash is extremely fast for a cryptographically secure function,
it is likely a bit slower than the insecure jhash, and so replacements
will be evaluated on a case-by-case basis based on whether or not the
difference in speed is negligible and whether or not the current jhash usage
poses a real security risk.
For the second usage:
A few places in the kernel are using MD5 or SHA1 for creating secure
sequence numbers, syn cookies, port numbers, or fast random numbers.
SipHash is a faster and more fitting, and more secure replacement for MD5
in those situations. Replacing MD5 and SHA1 with SipHash for these uses is
obvious and straight-forward, and so is submitted along with this patch
series. There shouldn't be much of a debate over its efficacy.
Dozens of languages are already using this internally for their hash
tables and PRFs. Some of the BSDs already use this in their kernels.
SipHash is a widely known high-speed solution to a widely known set of
problems, and it's time we catch-up.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Jean-Philippe Aumasson <jeanphilippe.aumasson@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Eric Biggers <ebiggers3@gmail.com>
Cc: David Laight <David.Laight@aculab.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[bwh: Backported to 4.9 as dependency of commits df453700e8d8 "inet: switch
IP ID generator to siphash" and 3c79107631db "netfilter: ctnetlink: don't
use conntrack/expect object addresses as id"]
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge 4.9.187 into android-4.9-q
Changes in 4.9.187
MIPS: ath79: fix ar933x uart parity mode
MIPS: fix build on non-linux hosts
arm64/efi: Mark __efistub_stext_offset as an absolute symbol explicitly
dmaengine: imx-sdma: fix use-after-free on probe error path
ath10k: Do not send probe response template for mesh
ath9k: Check for errors when reading SREV register
ath6kl: add some bounds checking
ath: DFS JP domain W56 fixed pulse type 3 RADAR detection
batman-adv: fix for leaked TVLV handler.
media: dvb: usb: fix use after free in dvb_usb_device_exit
crypto: talitos - fix skcipher failure due to wrong output IV
media: marvell-ccic: fix DMA s/g desc number calculation
media: vpss: fix a potential NULL pointer dereference
media: media_device_enum_links32: clean a reserved field
net: stmmac: dwmac1000: Clear unused address entries
net: stmmac: dwmac4/5: Clear unused address entries
signal/pid_namespace: Fix reboot_pid_ns to use send_sig not force_sig
af_key: fix leaks in key_pol_get_resp and dump_sp.
xfrm: Fix xfrm sel prefix length validation
media: mc-device.c: don't memset __user pointer contents
media: staging: media: davinci_vpfe: - Fix for memory leak if decoder initialization fails.
net: phy: Check against net_device being NULL
crypto: talitos - properly handle split ICV.
crypto: talitos - Align SEC1 accesses to 32 bits boundaries.
tua6100: Avoid build warnings.
locking/lockdep: Fix merging of hlocks with non-zero references
media: wl128x: Fix some error handling in fm_v4l2_init_video_device()
cpupower : frequency-set -r option misses the last cpu in related cpu list
net: fec: Do not use netdev messages too early
net: axienet: Fix race condition causing TX hang
s390/qdio: handle PENDING state for QEBSM devices
perf cs-etm: Properly set the value of 'old' and 'head' in snapshot mode
perf test 6: Fix missing kvm module load for s390
gpio: omap: fix lack of irqstatus_raw0 for OMAP4
gpio: omap: ensure irq is enabled before wakeup
regmap: fix bulk writes on paged registers
bpf: silence warning messages in core
rcu: Force inlining of rcu_read_lock()
blkcg, writeback: dead memcgs shouldn't contribute to writeback ownership arbitration
xfrm: fix sa selector validation
perf evsel: Make perf_evsel__name() accept a NULL argument
vhost_net: disable zerocopy by default
ipoib: correcly show a VF hardware address
EDAC/sysfs: Fix memory leak when creating a csrow object
ipsec: select crypto ciphers for xfrm_algo
media: i2c: fix warning same module names
ntp: Limit TAI-UTC offset
timer_list: Guard procfs specific code
acpi/arm64: ignore 5.1 FADTs that are reported as 5.0
media: coda: fix mpeg2 sequence number handling
media: coda: increment sequence offset for the last returned frame
mt7601u: do not schedule rx_tasklet when the device has been disconnected
x86/build: Add 'set -e' to mkcapflags.sh to delete broken capflags.c
mt7601u: fix possible memory leak when the device is disconnected
ath10k: fix PCIE device wake up failed
perf tools: Increase MAX_NR_CPUS and MAX_CACHES
libata: don't request sense data on !ZAC ATA devices
clocksource/drivers/exynos_mct: Increase priority over ARM arch timer
rslib: Fix decoding of shortened codes
rslib: Fix handling of of caller provided syndrome
ixgbe: Check DDM existence in transceiver before access
crypto: asymmetric_keys - select CRYPTO_HASH where needed
EDAC: Fix global-out-of-bounds write when setting edac_mc_poll_msec
bcache: check c->gc_thread by IS_ERR_OR_NULL in cache_set_flush()
iwlwifi: mvm: Drop large non sta frames
net: usb: asix: init MAC address buffers
gpiolib: Fix references to gpiod_[gs]et_*value_cansleep() variants
Bluetooth: hci_bcsp: Fix memory leak in rx_skb
Bluetooth: 6lowpan: search for destination address in all peers
Bluetooth: Check state in l2cap_disconnect_rsp
Bluetooth: validate BLE connection interval updates
gtp: fix Illegal context switch in RCU read-side critical section.
gtp: fix use-after-free in gtp_newlink()
xen: let alloc_xenballooned_pages() fail if not enough memory free
scsi: NCR5380: Reduce goto statements in NCR5380_select()
scsi: NCR5380: Always re-enable reselection interrupt
scsi: mac_scsi: Increase PIO/PDMA transfer length threshold
crypto: ghash - fix unaligned memory access in ghash_setkey()
crypto: arm64/sha1-ce - correct digest for empty data in finup
crypto: arm64/sha2-ce - correct digest for empty data in finup
crypto: chacha20poly1305 - fix atomic sleep when using async algorithm
crypto: crypto4xx - fix a potential double free in ppc4xx_trng_probe
Input: gtco - bounds check collection indent level
regulator: s2mps11: Fix buck7 and buck8 wrong voltages
arm64: tegra: Update Jetson TX1 GPU regulator timings
iwlwifi: pcie: don't service an interrupt that was masked
tracing/snapshot: Resize spare buffer if size changed
NFSv4: Handle the special Linux file open access mode
lib/scatterlist: Fix mapping iterator when sg->offset is greater than PAGE_SIZE
ALSA: seq: Break too long mutex context in the write loop
ALSA: hda/realtek: apply ALC891 headset fixup to one Dell machine
media: v4l2: Test type instead of cfg->type in v4l2_ctrl_new_custom()
media: coda: Remove unbalanced and unneeded mutex unlock
KVM: x86/vPMU: refine kvm_pmu err msg when event creation failed
arm64: tegra: Fix AGIC register range
fs/proc/proc_sysctl.c: fix the default values of i_uid/i_gid on /proc/sys inodes.
drm/nouveau/i2c: Enable i2c pads & busses during preinit
padata: use smp_mb in padata_reorder to avoid orphaned padata jobs
9p/virtio: Add cleanup path in p9_virtio_init
PCI: Do not poll for PME if the device is in D3cold
Btrfs: add missing inode version, ctime and mtime updates when punching hole
libnvdimm/pfn: fix fsdax-mode namespace info-block zero-fields
take floppy compat ioctls to sodding floppy.c
floppy: fix div-by-zero in setup_format_params
floppy: fix out-of-bounds read in next_valid_format
floppy: fix invalid pointer dereference in drive_name
floppy: fix out-of-bounds read in copy_buffer
coda: pass the host file in vma->vm_file on mmap
gpu: ipu-v3: ipu-ic: Fix saturation bit offset in TPMEM
crypto: ccp - Validate the the error value used to index error messages
PCI: hv: Delete the device earlier from hbus->children for hot-remove
PCI: hv: Fix a use-after-free bug in hv_eject_device_work()
crypto: caam - limit output IV to CBC to work around CTR mode DMA issue
um: Allow building and running on older hosts
um: Fix FP register size for XSTATE/XSAVE
parisc: Ensure userspace privilege for ptraced processes in regset functions
parisc: Fix kernel panic due invalid values in IAOQ0 or IAOQ1
powerpc/32s: fix suspend/resume when IBATs 4-7 are used
powerpc/watchpoint: Restore NV GPRs while returning from exception
eCryptfs: fix a couple type promotion bugs
intel_th: msu: Fix single mode with disabled IOMMU
Bluetooth: Add SMP workaround Microsoft Surface Precision Mouse bug
usb: Handle USB3 remote wakeup for LPM enabled devices correctly
dm bufio: fix deadlock with loop device
compiler.h, kasan: Avoid duplicating __read_once_size_nocheck()
compiler.h: Add read_word_at_a_time() function.
lib/strscpy: Shut up KASAN false-positives in strscpy()
ext4: allow directory holes
bnx2x: Prevent load reordering in tx completion processing
bnx2x: Prevent ptp_task to be rescheduled indefinitely
caif-hsi: fix possible deadlock in cfhsi_exit_module()
igmp: fix memory leak in igmpv3_del_delrec()
ipv4: don't set IPv6 only flags to IPv4 addresses
net: bcmgenet: use promisc for unsupported filters
net: dsa: mv88e6xxx: wait after reset deactivation
net: neigh: fix multiple neigh timer scheduling
net: openvswitch: fix csum updates for MPLS actions
nfc: fix potential illegal memory access
rxrpc: Fix send on a connected, but unbound socket
sky2: Disable MSI on ASUS P6T
vrf: make sure skb->data contains ip header to make routing
macsec: fix use-after-free of skb during RX
macsec: fix checksumming after decryption
netrom: fix a memory leak in nr_rx_frame()
netrom: hold sock when setting skb->destructor
bonding: validate ip header before check IPPROTO_IGMP
tcp: Reset bytes_acked and bytes_received when disconnecting
net: bridge: mcast: fix stale nsrcs pointer in igmp3/mld2 report handling
net: bridge: mcast: fix stale ipv6 hdr pointer when handling v6 query
net: bridge: stp: don't cache eth dest pointer before skb pull
perf/x86/amd/uncore: Rename 'L2' to 'LLC'
perf/x86/amd/uncore: Get correct number of cores sharing last level cache
perf/events/amd/uncore: Fix amd_uncore_llc ID to use pre-defined cpu_llc_id
NFSv4: Fix open create exclusive when the server reboots
nfsd: increase DRC cache limit
nfsd: give out fewer session slots as limit approaches
nfsd: fix performance-limiting session calculation
nfsd: Fix overflow causing non-working mounts on 1 TB machines
drm/panel: simple: Fix panel_simple_dsi_probe
usb: core: hub: Disable hub-initiated U1/U2
tty: max310x: Fix invalid baudrate divisors calculator
pinctrl: rockchip: fix leaked of_node references
tty: serial: cpm_uart - fix init when SMC is relocated
drm/bridge: tc358767: read display_props in get_modes()
drm/bridge: sii902x: pixel clock unit is 10kHz instead of 1kHz
memstick: Fix error cleanup path of memstick_init
tty/serial: digicolor: Fix digicolor-usart already registered warning
tty: serial: msm_serial: avoid system lockup condition
serial: 8250: Fix TX interrupt handling condition
drm/virtio: Add memory barriers for capset cache.
phy: renesas: rcar-gen2: Fix memory leak at error paths
drm/rockchip: Properly adjust to a true clock in adjusted_mode
tty: serial_core: Set port active bit in uart_port_activate
usb: gadget: Zero ffs_io_data
powerpc/pci/of: Fix OF flags parsing for 64bit BARs
PCI: sysfs: Ignore lockdep for remove attribute
kbuild: Add -Werror=unknown-warning-option to CLANG_FLAGS
PCI: xilinx-nwl: Fix Multi MSI data programming
iio: iio-utils: Fix possible incorrect mask calculation
recordmcount: Fix spurious mcount entries on powerpc
mfd: core: Set fwnode for created devices
mfd: arizona: Fix undefined behavior
mfd: hi655x-pmic: Fix missing return value check for devm_regmap_init_mmio_clk
um: Silence lockdep complaint about mmap_sem
powerpc/4xx/uic: clear pending interrupt after irq type/pol change
RDMA/i40iw: Set queue pair state when being queried
serial: sh-sci: Terminate TX DMA during buffer flushing
serial: sh-sci: Fix TX DMA buffer flushing and workqueue races
kallsyms: exclude kasan local symbols on s390
perf test mmap-thread-lookup: Initialize variable to suppress memory sanitizer warning
RDMA/rxe: Fill in wc byte_len with IB_WC_RECV_RDMA_WITH_IMM
powerpc/boot: add {get, put}_unaligned_be32 to xz_config.h
f2fs: avoid out-of-range memory access
mailbox: handle failed named mailbox channel request
powerpc/eeh: Handle hugepages in ioremap space
sh: prevent warnings when using iounmap
mm/kmemleak.c: fix check for softirq context
9p: pass the correct prototype to read_cache_page
mm/mmu_notifier: use hlist_add_head_rcu()
locking/lockdep: Fix lock used or unused stats error
locking/lockdep: Hide unused 'class' variable
usb: wusbcore: fix unbalanced get/put cluster_id
usb: pci-quirks: Correct AMD PLL quirk detection
x86/sysfb_efi: Add quirks for some devices with swapped width and height
x86/speculation/mds: Apply more accurate check on hypervisor platform
hpet: Fix division by zero in hpet_time_div()
ALSA: line6: Fix wrong altsetting for LINE6_PODHD500_1
ALSA: hda - Add a conexant codec entry to let mute led work
powerpc/tm: Fix oops on sigreturn on systems without TM
access: avoid the RCU grace period for the temporary subjective credentials
ipv6: check sk sk_type and protocol early in ip_mroute_set/getsockopt
tcp: reset sk_send_head in tcp_write_queue_purge
arm64: dts: marvell: Fix A37xx UART0 register size
i2c: qup: fixed releasing dma without flush operation completion
arm64: compat: Provide definition for COMPAT_SIGMINSTKSZ
ISDN: hfcsusb: checking idx of ep configuration
media: au0828: fix null dereference in error path
media: cpia2_usb: first wake up, then free in disconnect
media: radio-raremono: change devm_k*alloc to k*alloc
Bluetooth: hci_uart: check for missing tty operations
sched/fair: Don't free p->numa_faults with concurrent readers
drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl
ceph: hold i_ceph_lock when removing caps for freeing inode
Linux 4.9.187
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit 1a3241ff10d038ecd096d03380327f2a0b5840a6 ]
strscpy() performs the word-at-a-time optimistic reads. So it may may
access the memory past the end of the object, which is perfectly fine
since strscpy() doesn't use that (past-the-end) data and makes sure the
optimistic read won't cross a page boundary.
Use new read_word_at_a_time() to shut up the KASAN.
Note that this potentially could hide some bugs. In example bellow,
stscpy() will copy more than we should (1-3 extra uninitialized bytes):
char dst[8];
char *src;
src = kmalloc(5, GFP_KERNEL);
memset(src, 0xff, 5);
strscpy(dst, src, 8);
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Gustavo A. R. Silva
Masahiro Yamada
Nick Terrell
baddar90
Tiezhu Yang
Guo Xuenan
Andy Shevchenko
Rajat Asthana
Joe Perches
Gao Xiang
Linus Torvalds
Gao Xiang
David Lin
Michal Hocko
Colin Ian King
Sven Schmidt
xxmustafacooTR
Kimberly Brown
FAROVITUS
Greg Kroah-Hartman
Alexander Potapenko
Nathan Chancellor
Arnd Bergmann
Jan Kara
Eric Dumazet
Greg Kroah-Hartman
Olof Johansson
Huang Shijie
Alexey Skidanov
Kevin Hao
Nicolas Boichat
Jason A. Donenfeld
Andrey Ryabinin