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Commit aa328426 authored by qctecmdr's avatar qctecmdr Committed by Gerrit - the friendly Code Review server
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Merge "signal: Avoid corrupting si_pid and si_uid in do_notify_parent"

parents c34b411f 73f97b1b

kernel/signal.c

+5 −1
Original line number Diff line number Diff line
@@ -1924,8 +1924,12 @@ bool do_notify_parent(struct task_struct *tsk, int sig) 
		if (psig->action[SIGCHLD-1].sa.sa_handler == SIG_IGN)

			sig = 0;

	}

	/*

	 * Send with __send_signal as si_pid and si_uid are in the

	 * parent's namespaces.

	 */

	if (valid_signal(sig) && sig)

		__group_send_sig_info(sig, &info, tsk->parent);

		__send_signal(sig, &info, tsk->parent, PIDTYPE_TGID, false);

	__wake_up_parent(tsk, tsk->parent);

	spin_unlock_irqrestore(&psig->siglock, flags);