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authorGao Xiang <hsiangkao@linux.alibaba.com>2021-10-25 10:43:11 +0300
committerGao Xiang <hsiangkao@linux.alibaba.com>2021-10-31 16:00:28 +0300
commita0961f351d82d43ab0b845304caa235dfe249ae9 (patch)
tree41480cd2f7f4458ab1747c90e02e870b7a7f2d94 /fs
parenteaa9172ad988b3ef5c59a051c825706252d435e1 (diff)
downloadlinux-a0961f351d82d43ab0b845304caa235dfe249ae9.tar.xz
erofs: don't trigger WARN() when decompression fails
syzbot reported a WARNING [1] due to corrupted compressed data. As Dmitry said, "If this is not a kernel bug, then the code should not use WARN. WARN if for kernel bugs and is recognized as such by all testing systems and humans." [1] https://lore.kernel.org/r/000000000000b3586105cf0ff45e@google.com Link: https://lore.kernel.org/r/20211025074311.130395-1-hsiangkao@linux.alibaba.com Cc: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Chao Yu <chao@kernel.org> Reported-by: syzbot+d8aaffc3719597e8cfb4@syzkaller.appspotmail.com Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/erofs/decompressor.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index a0786b95cdf9..bf37fc76b182 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -227,7 +227,6 @@ static int z_erofs_lz4_decompress_mem(struct z_erofs_decompress_req *rq,
erofs_err(rq->sb, "failed to decompress %d in[%u, %u] out[%u]",
ret, rq->inputsize, inputmargin, rq->outputsize);
- WARN_ON(1);
print_hex_dump(KERN_DEBUG, "[ in]: ", DUMP_PREFIX_OFFSET,
16, 1, src + inputmargin, rq->inputsize, true);
print_hex_dump(KERN_DEBUG, "[out]: ", DUMP_PREFIX_OFFSET,