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-rw-r--r--kernel/sys.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/sys.c b/kernel/sys.c
index 7f43d6e62c7..f64e97cabe2 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -25,6 +25,7 @@
#include <linux/dcookies.h>
#include <linux/suspend.h>
#include <linux/tty.h>
+#include <linux/signal.h>
#include <linux/compat.h>
#include <linux/syscalls.h>
@@ -1637,7 +1638,7 @@ asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
switch (option) {
case PR_SET_PDEATHSIG:
sig = arg2;
- if (sig < 0 || sig > _NSIG) {
+ if (!valid_signal(sig)) {
error = -EINVAL;
break;
}