Haimin Zhang 33bd243566 jfs: prevent NULL deref in diFree ... [ Upstream commit a530462910 ] Add validation check for JFS_IP(ipimap)->i_imap to prevent a NULL deref in diFree since diFree uses it without do any validations. When function jfs_mount calls diMount to initialize fileset inode allocation map, it can fail and JFS_IP(ipimap)->i_imap won't be initialized. Then it calls diFreeSpecial to close fileset inode allocation map inode and it will flow into jfs_evict_inode. Function jfs_evict_inode just validates JFS_SBI(inode->i_sb)->ipimap, then calls diFree. diFree use JFS_IP(ipimap)->i_imap directly, then it will cause a NULL deref. Reported-by: TCS Robot <tcs_robot@tencent.com> Signed-off-by: Haimin Zhang <tcs_kernel@tencent.com> Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-04-20 09:08:28 +02:00
..
acl.c
file.c
inode.c	jfs: prevent NULL deref in diFree	2022-04-20 09:08:28 +02:00
ioctl.c
jfs_acl.h
jfs_btree.h
jfs_debug.c
jfs_debug.h
jfs_dinode.h
jfs_discard.c
jfs_discard.h
jfs_dmap.c	jfs: fix divide error in dbNextAG	2022-04-20 09:08:20 +02:00
jfs_dmap.h	jfs: Fix array index bounds check in dbAdjTree	2020-12-29 13:47:08 +01:00
jfs_dtree.c
jfs_dtree.h
jfs_extent.c
jfs_extent.h
jfs_filsys.h	JFS: more checks for invalid superblock	2021-03-07 11:27:42 +01:00
jfs_imap.c
jfs_imap.h
jfs_incore.h
jfs_inode.c
jfs_inode.h
jfs_lock.h
jfs_logmgr.c	fs/jfs: Fix missing error code in lmLogInit()	2021-07-20 16:17:49 +02:00
jfs_logmgr.h
jfs_metapage.c
jfs_metapage.h
jfs_mount.c	JFS: fix memleak in jfs_mount	2021-11-26 11:40:32 +01:00
jfs_superblock.h
jfs_txnmgr.c
jfs_txnmgr.h
jfs_types.h
jfs_umount.c
jfs_unicode.c
jfs_unicode.h
jfs_uniupr.c
jfs_xattr.h
jfs_xtree.c
jfs_xtree.h
Kconfig
Makefile
namei.c
resize.c
super.c
symlink.c
xattr.c