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| author | Al Viro <viro@zeniv.linux.org.uk> | 2008-12-10 07:16:12 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2009-01-04 15:14:40 -0500 |
| commit | 20114f71b27cafeb7c7e41d2b0f0b68c3fbb022b (patch) | |
| tree | fcbb481cfec8c11f103ba07dbb08819de3822d80 /ipc | |
| parent | 7392906ea915b9a2c14dea32b3604b4e178f82f7 (diff) | |
| download | lwn-20114f71b27cafeb7c7e41d2b0f0b68c3fbb022b.tar.gz lwn-20114f71b27cafeb7c7e41d2b0f0b68c3fbb022b.zip | |
sanitize audit_mq_notify()
* don't copy_from_user() twice
* don't bother with allocations
* don't duplicate parts of audit_dummy_context()
* make it return void
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'ipc')
| -rw-r--r-- | ipc/mqueue.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/ipc/mqueue.c b/ipc/mqueue.c index 7563611c6615..e7b2f68f8d77 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@ -1003,17 +1003,17 @@ asmlinkage long sys_mq_notify(mqd_t mqdes, struct mqueue_inode_info *info; struct sk_buff *nc; - ret = audit_mq_notify(mqdes, u_notification); - if (ret != 0) - return ret; - - nc = NULL; - sock = NULL; - if (u_notification != NULL) { + if (u_notification) { if (copy_from_user(¬ification, u_notification, sizeof(struct sigevent))) return -EFAULT; + } + + audit_mq_notify(mqdes, u_notification ? ¬ification : NULL); + nc = NULL; + sock = NULL; + if (u_notification != NULL) { if (unlikely(notification.sigev_notify != SIGEV_NONE && notification.sigev_notify != SIGEV_SIGNAL && notification.sigev_notify != SIGEV_THREAD)) |