3.6.11.9-rc1 stable review patch.
If anyone has any objections, please let me know.
------------------
From: Dan Carpenter <dan.carpen...@oracle.com>
[ Upstream commit de1e0c40aceb9d5bff09c3a3b97b2f1b178af53f ]
The ->reserved field isn't cleared so we leak one byte of stack
information to userspace.
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
Cc: Eric Paris <epa...@redhat.com>
Cc: Al Viro <v...@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <a...@linux-foundation.org>
Signed-off-by: Linus Torvalds <torva...@linux-foundation.org>
Signed-off-by: Steven Rostedt <rost...@goodmis.org>
---
fs/notify/fanotify/fanotify_user.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/notify/fanotify/fanotify_user.c
b/fs/notify/fanotify/fanotify_user.c
index d438036..b670659 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -116,6 +116,7 @@ static int fill_event_metadata(struct fsnotify_group *group,
metadata->event_len = FAN_EVENT_METADATA_LEN;
metadata->metadata_len = FAN_EVENT_METADATA_LEN;
metadata->vers = FANOTIFY_METADATA_VERSION;
+ metadata->reserved = 0;
metadata->mask = event->mask & FAN_ALL_OUTGOING_EVENTS;
metadata->pid = pid_vnr(event->tgid);
if (unlikely(event->mask & FAN_Q_OVERFLOW))
--
1.7.10.4
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