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| author | Chao Yu <chao@kernel.org> | 2022-04-26 23:26:46 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2022-04-26 16:05:35 -0700 |
| commit | 0b9b89fda2e9fbaf17a11fa15332e7ae95cf5261 (patch) | |
| tree | 4bd617abed18ce1a1ed315147559a7aeddca8275 | |
| parent | eee3969d7dcf3be9c3b831d993fcf49f55855a35 (diff) | |
| download | f2fs-tools-0b9b89fda2e9fbaf17a11fa15332e7ae95cf5261.tar.gz | |
dump.f2fs: compress: fix dstlen of LZ4_compress_fast_extState()
Compressed cluster content includes compress cluster header, so
calculation of dstlen parameter in LZ4_compress_fast_extState()
should consider this design, otherwise compressed data may overflow
destination buffer during compression.
Signed-off-by: Chao Yu <chao.yu@oppo.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
| -rw-r--r-- | fsck/compress.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fsck/compress.c b/fsck/compress.c index 620768d..b413492 100644 --- a/fsck/compress.c +++ b/fsck/compress.c @@ -86,7 +86,8 @@ static int lz4_compress(struct compress_ctx *cc) { cc->clen = LZ4_compress_fast_extState(cc->private, cc->rbuf, (char *)cc->cbuf->cdata, cc->rlen, - cc->rlen - F2FS_BLKSIZE * c.compress.min_blocks, + cc->rlen - F2FS_BLKSIZE * c.compress.min_blocks - + COMPRESS_HEADER_SIZE, LZ4_ACCELERATION_DEFAULT); if (!cc->clen) |