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Commit 5a30a798 authored by Al Viro's avatar Al Viro
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um: wrong sigmask saved in case of multiple sigframes 



we can't just find oldmask once; if there are multiple signals
and we loop building sigframes for those, ->saved_mask will be
definitely wrong for all but the first one.

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent d50349b0

arch/um/kernel/signal.c

+5 −6
Original line number Diff line number Diff line
@@ -74,15 +74,14 @@ static int kern_do_signal(struct pt_regs *regs) 
{

	struct k_sigaction ka_copy;

	siginfo_t info;

	sigset_t *oldset;

	int sig, handled_sig = 0;



	while ((sig = get_signal_to_deliver(&info, &ka_copy, regs, NULL)) > 0) {

		sigset_t *oldset;

		if (test_thread_flag(TIF_RESTORE_SIGMASK))

			oldset = &current->saved_sigmask;

		else

			oldset = &current->blocked;



	while ((sig = get_signal_to_deliver(&info, &ka_copy, regs, NULL)) > 0) {

		handled_sig = 1;

		/* Whee!  Actually deliver the signal.  */

		if (!handle_signal(regs, sig, &ka_copy, &info, oldset)) {