]> www.infradead.org Git - users/jedix/linux-maple.git/commit
ocfs2: fix NULL pointer dereference in function ocfs2_abort_trigger()
authorXue jiufei <xuejiufei@huawei.com>
Wed, 24 Jun 2015 23:55:20 +0000 (16:55 -0700)
committerChuck Anderson <chuck.anderson@oracle.com>
Sat, 26 Nov 2016 23:43:16 +0000 (15:43 -0800)
commit9ad142893c7d36419323e5919c68a6c2b0974436
tree2bd8d4a55ea8c2a9b90ebe403d3794c755e96776
parent6ec7474d183f33169de152485ecb1bdc2dbd47e6
ocfs2: fix NULL pointer dereference in function ocfs2_abort_trigger()

ocfs2_abort_trigger() use bh->b_assoc_map to get sb.  But there's no
function to set bh->b_assoc_map in ocfs2, it will trigger NULL pointer
dereference while calling this function.  We can get sb from
bh->b_bdev->bd_super instead of b_assoc_map.

[akpm@linux-foundation.org: update comment, per Joseph]
Signed-off-by: joyce.xue <xuejiufei@huawei.com>
Cc: Joseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 74e364ad1b13fd518a0bd4e5aec56d5e8706152f)

Orabug: 24939243

Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
fs/ocfs2/journal.c