Pan Bian ffaaaf68be ext2: fix potential use after free ... commit ecebf55d27a11538ea84aee0be643dd953f830d5 upstream. The function ext2_xattr_set calls brelse(bh) to drop the reference count of bh. After that, bh may be freed. However, following brelse(bh), it reads bh->b_data via macro HDR(bh). This may result in a use-after-free bug. This patch moves brelse(bh) after reading field. CC: stable@vger.kernel.org Signed-off-by: Pan Bian <bianpan2016@163.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-12-05 19:32:11 +01:00
..
acl.c
acl.h
balloc.c	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
dir.c	iversion: Rename make inode_cmp_iversion{+raw} to inode_eq_iversion{+raw}	2018-02-01 08:15:25 -05:00
ext2.h	ext2: add warning when specifying nocheck option	2018-06-20 11:04:26 +02:00
file.c	dax: remove VM_MIXEDMAP for fsdax and device dax	2018-08-17 16:20:27 -07:00
ialloc.c	ext2: make sure that partially set up inodes won't be returned by ext2_iget()	2018-08-03 16:03:31 -04:00
inode.c	ext2, dax: set ext2_dax_aops for dax files	2018-09-19 15:03:04 +02:00
ioctl.c
Kconfig	fs/*/Kconfig: drop links to 404-compliant http://acl.bestbits.at	2018-01-01 12:45:37 -07:00
Makefile
namei.c	ext2: make sure that partially set up inodes won't be returned by ext2_iget()	2018-08-03 16:03:31 -04:00
super.c	ext2: initialize opts.s_mount_opt as zero before using it	2018-12-05 19:32:11 +01:00
symlink.c
xattr.c	ext2: fix potential use after free	2018-12-05 19:32:11 +01:00
xattr.h
xattr_security.c
xattr_trusted.c
xattr_user.c