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authorPavel Emelyanov <xemul@openvz.org>2010-05-12 15:34:07 -0700
committerEric Paris <eparis@redhat.com>2010-05-14 11:53:36 -0400
commitb3b38d842fa367d862b83e7670af4e0fd6a80fc0 (patch)
treedb803231178ae41f21240017a3119dea3a4d3589 /fs/notify/inotify
parente08733446e72b983fed850fc5d8bd21b386feb29 (diff)
downloadlinux-b3b38d842fa367d862b83e7670af4e0fd6a80fc0.tar.gz
inotify: don't leak user struct on inotify release
inotify_new_group() receives a get_uid-ed user_struct and saves the
reference on group->inotify_data.user.  The problem is that free_uid() is
never called on it.

Issue seem to be introduced by 63c882a0 (inotify: reimplement inotify
using fsnotify) after 2.6.30.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Eric Paris <eparis@parisplace.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Eric Paris <eparis@redhat.com>
Diffstat (limited to 'fs/notify/inotify')
-rw-r--r--fs/notify/inotify/inotify_fsnotify.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c
index 1afb0a10229f..e27960cd76ab 100644
--- a/fs/notify/inotify/inotify_fsnotify.c
+++ b/fs/notify/inotify/inotify_fsnotify.c
@@ -28,6 +28,7 @@
 #include <linux/path.h> /* struct path */
 #include <linux/slab.h> /* kmem_* */
 #include <linux/types.h>
+#include <linux/sched.h>
 
 #include "inotify.h"
 
@@ -146,6 +147,7 @@ static void inotify_free_group_priv(struct fsnotify_group *group)
 	idr_for_each(&group->inotify_data.idr, idr_callback, group);
 	idr_remove_all(&group->inotify_data.idr);
 	idr_destroy(&group->inotify_data.idr);
+	free_uid(group->inotify_data.user);
 }
 
 void inotify_free_event_priv(struct fsnotify_event_private_data *fsn_event_priv)