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authorJan Kara <jack@suse.cz>2014-02-17 13:09:50 +0100
committerJan Kara <jack@suse.cz>2014-02-18 11:17:17 +0100
commit45a22f4c11fef4ecd5c61c0a299cd3f23d77be8e (patch)
treeb1f71eb3ff7209849bd27b0dbb131ea74bd7f63b /include
parent6d0abeca3242a88cab8232e4acd7e2bf088f3bc2 (diff)
downloadlinux-linaro-stable-45a22f4c11fef4ecd5c61c0a299cd3f23d77be8e.tar.gz
inotify: Fix reporting of cookies for inotify events
My rework of handling of notification events (namely commit 7053aee26a35 "fsnotify: do not share events between notification groups") broke sending of cookies with inotify events. We didn't propagate the value passed to fsnotify() properly and passed 4 uninitialized bytes to userspace instead (so it is also an information leak). Sadly I didn't notice this during my testing because inotify cookies aren't used very much and LTP inotify tests ignore them. Fix the problem by passing the cookie value properly. Fixes: 7053aee26a3548ebaba046ae2e52396ccf56ac6c Reported-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'include')
-rw-r--r--include/linux/fsnotify_backend.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index 3d286ff49ab0..c84bc7c2bfc8 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -99,7 +99,7 @@ struct fsnotify_ops {
struct fsnotify_mark *inode_mark,
struct fsnotify_mark *vfsmount_mark,
u32 mask, void *data, int data_type,
- const unsigned char *file_name);
+ const unsigned char *file_name, u32 cookie);
void (*free_group_priv)(struct fsnotify_group *group);
void (*freeing_mark)(struct fsnotify_mark *mark, struct fsnotify_group *group);
void (*free_event)(struct fsnotify_event *event);