signal: If the thread receiving the signal is not current, the signal is not processed.

2018-01-25 22:27:34 +09:00
parent 1fa398cfab
commit f55f01cc11
2 changed files with 59 additions and 28 deletions
--- a/arch/x86_64/kernel/cpu.c
+++ b/arch/x86_64/kernel/cpu.c
@@ -875,8 +875,9 @@ void interrupt_exit(struct x86_user_context *regs)
 {
 	if (interrupt_from_user(regs)) {
 		cpu_enable_interrupt();
-		check_signal(0, regs, 0);
+		check_sig_pending();
 		check_need_resched();
+		check_signal(0, regs, 0);
 	}
 	else {
 		check_sig_pending();