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authorJeff Liu <jeff.liu@oracle.com>2013-08-13 16:01:01 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-08-13 17:57:49 -0700
commitd6394b5900298385fd6fab299c445fb1b0b7a182 (patch)
tree52c7cd17bc86308fa8c5bfb51d378da62193927c /arch/openrisc
parentdf54d6fa54275ce59660453e29d1228c2b45a826 (diff)
downloadblackbird-op-linux-d6394b5900298385fd6fab299c445fb1b0b7a182.tar.gz
blackbird-op-linux-d6394b5900298385fd6fab299c445fb1b0b7a182.zip
ocfs2: fix null pointer dereference in ocfs2_dir_foreach_blk_id()
Fix a NULL pointer deference while removing an empty directory, which was introduced by commit 3704412bdbf3 ("[readdir] convert ocfs2"). BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<(null)>] (null) PGD 6da85067 PUD 6da89067 PMD 0 Oops: 0010 [#1] SMP CPU: 0 PID: 6564 Comm: rmdir Tainted: G O 3.11.0-rc1 #4 RIP: 0010:[<0000000000000000>] [< (null)>] (null) Call Trace: ocfs2_dir_foreach+0x49/0x50 [ocfs2] ocfs2_empty_dir+0x12c/0x3e0 [ocfs2] ocfs2_unlink+0x56e/0xc10 [ocfs2] vfs_rmdir+0xd5/0x140 do_rmdir+0x1cb/0x1e0 SyS_rmdir+0x16/0x20 system_call_fastpath+0x16/0x1b Code: Bad RIP value. RIP [< (null)>] (null) RSP <ffff88006daddc10> CR2: 0000000000000000 [dan.carpenter@oracle.com: fix pointer math] Signed-off-by: Jie Liu <jeff.liu@oracle.com> Reported-by: David Weber <wb@munzinger.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Joel Becker <jlbec@evilplan.org> Cc: Mark Fasheh <mfasheh@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/openrisc')
0 files changed, 0 insertions, 0 deletions
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