diff options
| author | Eric Paris <eparis@redhat.com> | 2010-11-23 23:48:26 -0500 |
|---|---|---|
| committer | Eric Paris <eparis@redhat.com> | 2010-11-29 14:50:01 -0500 |
| commit | a1bcea69f8762229a06245640bf1c09d8e4dca56 (patch) | |
| tree | 9d2e843df0adeb21a3273947a44149c288b58e30 /fs | |
| parent | e8652ca4f29b011ded297847e361f26ddb5f2725 (diff) | |
fanotify: do not leak user reference on allocation failure
If fanotify_init is unable to allocate a new fsnotify group it will
return but will not drop its reference on the associated user struct.
Drop that reference on error.
Reported-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/notify/fanotify/fanotify_user.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c index 01fffe62a2d4..ca54957b1f61 100644 --- a/fs/notify/fanotify/fanotify_user.c +++ b/fs/notify/fanotify/fanotify_user.c @@ -692,8 +692,10 @@ SYSCALL_DEFINE2(fanotify_init, unsigned int, flags, unsigned int, event_f_flags) /* fsnotify_alloc_group takes a ref. Dropped in fanotify_release */ group = fsnotify_alloc_group(&fanotify_fsnotify_ops); - if (IS_ERR(group)) + if (IS_ERR(group)) { + free_uid(user); return PTR_ERR(group); + } group->fanotify_data.user = user; atomic_inc(&user->fanotify_listeners); |