Messages in this thread | | | Date | Mon, 5 Feb 2007 20:13:35 +0300 | From | Oleg Nesterov <> | Subject | Re: [PATCH -mm][AIO] Fix AIO completion signal notification possible ref leak |
| |
On 02/05, S?bastien Dugu? wrote: > > Make sure we only accept valid sigev_notify values in aio_setup_sigevent(), > namely SIGEV_NONE, SIGEV_THREAD_ID or SIGEV_SIGNAL.
I think this is correct, but I have another concern (most probably I just confused looking at non-applied patch), could you re-check?
> @@ -959,6 +959,10 @@ static long aio_setup_sigevent(struct ai > if (event.sigev_notify == SIGEV_NONE) > return 0; > > + if (event.sigev_notify != SIGEV_SIGNAL && > + event.sigev_notify != SIGEV_THREAD_ID) > + return -EINVAL; > + > notify->notify = event.sigev_notify; > notify->signo = event.sigev_signo; > notify->value = event.sigev_value;
Ok. But what if sigevent_find_task() fails after that? Doesn't this mean that really_put_req() will do put_task_struct(NULL) ?
Oleg.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |