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authorTiger Yang <tiger.yang@oracle.com>2013-08-14 03:00:58 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-08-14 04:57:49 +0400
commitc7dd3392ad469e6ba125170ad29f881bed85b678 (patch)
treebdb444e27e72975da0a3ebad279392fb8b81929d /fs/ocfs2/aops.c
parent6115ea288424c1ead077843b6cd22369dd2e08f9 (diff)
downloadlinux-c7dd3392ad469e6ba125170ad29f881bed85b678.tar.xz
ocfs2: fix NULL pointer dereference in ocfs2_duplicate_clusters_by_page
Since ocfs2_cow_file_pos will invoke ocfs2_refcount_icow with a NULL as the struct file pointer, it finally result in a null pointer dereference in ocfs2_duplicate_clusters_by_page. This patch replace file pointer with inode pointer in cow_duplicate_clusters to fix this issue. [jeff.liu@oracle.com: rebased patch against linux-next tree] Signed-off-by: Tiger Yang <tiger.yang@oracle.com> Signed-off-by: Jie Liu <jeff.liu@oracle.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Mark Fasheh <mfasheh@suse.com> Acked-by: Tao Ma <tm@tao.ma> Tested-by: David Weber <wb@munzinger.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ocfs2/aops.c')
-rw-r--r--fs/ocfs2/aops.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 79736a28d84f..2abf97b2a592 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -1757,7 +1757,7 @@ try_again:
goto out;
} else if (ret == 1) {
clusters_need = wc->w_clen;
- ret = ocfs2_refcount_cow(inode, filp, di_bh,
+ ret = ocfs2_refcount_cow(inode, di_bh,
wc->w_cpos, wc->w_clen, UINT_MAX);
if (ret) {
mlog_errno(ret);