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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> |
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| .. | ||
| bitstream.h | ||
| compiler.h | ||
| cpu.h | ||
| debug.c | ||
| debug.h | ||
| entropy_common.c | ||
| error_private.c | ||
| error_private.h | ||
| fse.h | ||
| fse_decompress.c | ||
| huf.h | ||
| mem.h | ||
| portability_macros.h | ||
| zstd_common.c | ||
| zstd_deps.h | ||
| zstd_internal.h | ||