Jingbo Xu 0a17567b4a erofs: fix null-ptr-deref caused by erofs_xattr_prefixes_init ... Fragments and dedupe share one feature bit, and thus packed inode may not exist when fragment feature bit (dedupe feature bit exactly) is set, e.g. when deduplication feature is in use while fragments feature is not. In this case, sbi->packed_inode could be NULL while fragments feature bit is set. Fix this by accessing packed inode only when it exists. Reported-by: syzbot+902d5a9373ae8f748a94@syzkaller.appspotmail.com Link: https://syzkaller.appspot.com/bug?extid=902d5a9373ae8f748a94 Reported-and-tested-by: syzbot+bbb353775d51424087f2@syzkaller.appspotmail.com Fixes: 9e38291461 ("erofs: add helpers to load long xattr name prefixes") Fixes: 6a318ccd7e ("erofs: enable long extended attribute name prefixes") Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com> Reviewed-by: Yue Hu <huyue2@coolpad.com> Reviewed-by: Chao Yu <chao@kernel.org> Link: https://lore.kernel.org/r/20230515103941.129784-1-jefflexu@linux.alibaba.com Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>		2023-05-23 16:56:21 +08:00
..
compress.h	erofs: introduce multi-reference pclusters (fully-referenced)	2022-07-22 21:44:27 +08:00
data.c	erofs: keep meta inode into erofs_buf	2023-04-17 01:15:50 +08:00
decompressor_lzma.c	erofs: avoid hardcoded blocksize for subpage block support	2023-04-17 01:15:44 +08:00
decompressor.c	erofs: avoid hardcoded blocksize for subpage block support	2023-04-17 01:15:44 +08:00
dir.c	erofs: keep meta inode into erofs_buf	2023-04-17 01:15:50 +08:00
erofs_fs.h	erofs: cleanup i_format-related stuffs	2023-04-17 01:15:55 +08:00
fscache.c	erofs: avoid hardcoded blocksize for subpage block support	2023-04-17 01:15:44 +08:00
inode.c	erofs: sunset erofs_dbg()	2023-04-17 01:15:54 +08:00
internal.h	erofs: cleanup i_format-related stuffs	2023-04-17 01:15:55 +08:00
Kconfig	erofs: add per-cpu threads for decompression as an option	2023-02-15 08:11:26 +08:00
Makefile	erofs: register fscache volume	2022-05-18 00:11:19 +08:00
namei.c	erofs: sunset erofs_dbg()	2023-04-17 01:15:54 +08:00
pcpubuf.c	erofs: mark z_erofs_lzma_init/erofs_pcpubuf_init w/ __init	2023-03-09 22:49:30 +08:00
super.c	erofs: enable long extended attribute name prefixes	2023-04-17 01:15:53 +08:00
sysfs.c	erofs: make kobj_type structures constant	2023-02-15 08:11:26 +08:00
utils.c	mm: shrinkers: provide shrinkers with names	2022-07-03 18:08:40 -07:00
xattr.c	erofs: fix null-ptr-deref caused by erofs_xattr_prefixes_init	2023-05-23 16:56:21 +08:00
xattr.h	Changes since last update:	2023-04-24 14:25:39 -07:00
zdata.c	erofs: sunset erofs_dbg()	2023-04-17 01:15:54 +08:00
zmap.c	erofs: sunset erofs_dbg()	2023-04-17 01:15:54 +08:00