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Nick Terrell 62c6d82bac zstd: Fix array-index-out-of-bounds UBSAN warning 
[ Upstream commit 77618db346 ]

Zstd used an array of length 1 to mean a flexible array for C89
compatibility. Switch to a C99 flexible array to fix the UBSAN warning.

Tested locally by booting the kernel and writing to and reading from a
BtrFS filesystem with zstd compression enabled. I was unable to reproduce
the issue before the fix, however it is a trivial change.

Link: https://lkml.kernel.org/r/20231012213428.1390905-1-nickrterrell@gmail.com
Reported-by: syzbot+1f2eb3e8cd123ffce499@syzkaller.appspotmail.com
Reported-by: Eric Biggers <ebiggers@kernel.org>
Reported-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Nick Terrell <terrelln@fb.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-12-13 18:39:04 +01:00
..
common zstd: Fix array-index-out-of-bounds UBSAN warning 2023-12-13 18:39:04 +01:00
compress lib: zstd: Don't inline functions in zstd_opt.c 2021-11-18 13:15:33 -08:00
decompress lib: zstd: Add cast to silence clang's -Wbitwise-instead-of-logical 2021-11-08 16:55:38 -08:00
decompress_sources.h lib: zstd: Upgrade to latest upstream zstd version 1.4.10 2021-11-08 16:55:32 -08:00
Makefile zstd: Fixing mixed module-builtin objects 2022-10-03 03:52:58 +09:00
zstd_compress_module.c lib: zstd: Upgrade to latest upstream zstd version 1.4.10 2021-11-08 16:55:32 -08:00
zstd_decompress_module.c lib: zstd: Upgrade to latest upstream zstd version 1.4.10 2021-11-08 16:55:32 -08:00