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| author | Sasha Levin <sasha.levin@oracle.com> | 2014-03-28 21:33:38 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-03-28 21:56:58 +0100 |
| commit | d9060742fbf630fe31951dfc10b798deb2813f01 (patch) | |
| tree | a211f223fc34fa78e8b420fcd9e61e5de68eac73 /arch/x86/include | |
| parent | Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux (diff) | |
| download | linux-d9060742fbf630fe31951dfc10b798deb2813f01.tar.xz linux-d9060742fbf630fe31951dfc10b798deb2813f01.zip | |
ocfs2: check if cluster name exists before deref
Commit c74a3bdd9b52 ("ocfs2: add clustername to cluster connection") is
trying to strlcpy a string which was explicitly passed as NULL in the
very same patch, triggering a NULL ptr deref.
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: strlcpy (lib/string.c:388 lib/string.c:151)
CPU: 19 PID: 19426 Comm: trinity-c19 Tainted: G W 3.14.0-rc7-next-20140325-sasha-00014-g9476368-dirty #274
RIP: strlcpy (lib/string.c:388 lib/string.c:151)
Call Trace:
ocfs2_cluster_connect (fs/ocfs2/stackglue.c:350)
ocfs2_cluster_connect_agnostic (fs/ocfs2/stackglue.c:396)
user_dlm_register (fs/ocfs2/dlmfs/userdlm.c:679)
dlmfs_mkdir (fs/ocfs2/dlmfs/dlmfs.c:503)
vfs_mkdir (fs/namei.c:3467)
SyS_mkdirat (fs/namei.c:3488 fs/namei.c:3472)
tracesys (arch/x86/kernel/entry_64.S:749)
akpm: this patch probably disables the feature. A temporary thing to
avoid triviel oopses.
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Cc: Goldwyn Rodrigues <rgoldwyn@suse.com>
Cc: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86/include')
0 files changed, 0 insertions, 0 deletions