Gao Xiang dc8b6bd587 erofs: validate the extent length for uncompressed pclusters ... [ Upstream commit c505feba4c ] syzkaller reported a KASAN use-after-free: https://syzkaller.appspot.com/bug?extid=2ae90e873e97f1faf6f2 The referenced fuzzed image actually has two issues: - m_pa == 0 as a non-inlined pcluster; - The logical length is longer than its physical length. The first issue has already been addressed. This patch addresses the second issue by checking the extent length validity. Reported-by: syzbot+2ae90e873e97f1faf6f2@syzkaller.appspotmail.com Fixes: 02827e1796 ("staging: erofs: add erofs_map_blocks_iter") Reviewed-by: Chao Yu <chao@kernel.org> Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com> Link: https://lore.kernel.org/r/20221205150050.47784-2-hsiangkao@linux.alibaba.com Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-12-31 13:25:46 +01:00
..
compress.h
data.c
decompressor.c	erofs: support interlaced uncompressed data for compressed files	2022-12-31 13:25:46 +01:00
decompressor_lzma.c
dir.c
erofs_fs.h	erofs: support interlaced uncompressed data for compressed files	2022-12-31 13:25:46 +01:00
fscache.c
inode.c
internal.h	erofs: support interlaced uncompressed data for compressed files	2022-12-31 13:25:46 +01:00
Kconfig
Makefile
namei.c
pcpubuf.c
super.c
sysfs.c
tagptr.h
utils.c
xattr.c
xattr.h
zdata.c	erofs: Fix pcluster memleak when its block address is zero	2022-12-31 13:25:46 +01:00
zdata.h
zmap.c	erofs: validate the extent length for uncompressed pclusters	2022-12-31 13:25:46 +01:00