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authorAl Viro <viro@zeniv.linux.org.uk>2012-04-26 23:25:06 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2012-05-21 14:20:27 -0400
commit5a30a798fb501429522a30b6027a603244d659b2 (patch)
tree17a0e45af5c3b32f0a7005a094ad613b20ec6d61 /arch/um
parentd50349b0c397407458ea8c57aee765d158e6f9ee (diff)
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: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/um')
-rw-r--r--arch/um/kernel/signal.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/arch/um/kernel/signal.c b/arch/um/kernel/signal.c
index 0dfcef92ec91..187118fbe1bc 100644
--- a/arch/um/kernel/signal.c
+++ b/arch/um/kernel/signal.c
@@ -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;
- 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) {
+ sigset_t *oldset;
+ if (test_thread_flag(TIF_RESTORE_SIGMASK))
+ oldset = &current->saved_sigmask;
+ else
+ oldset = &current->blocked;
handled_sig = 1;
/* Whee! Actually deliver the signal. */
if (!handle_signal(regs, sig, &ka_copy, &info, oldset)) {