X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=kernel%2Fsys.c;h=ba3ddb43dd9fe4cca48544ae127702a424adacbb;hb=9042cdf4e1105ad5742db4e2dcf5355435476d5b;hp=b5a8e844a96887e2d4253536a5a45dd2a0ca296e;hpb=334ca3ed18ded942e0220719f70b80eb20fa48ec;p=firefly-linux-kernel-4.4.55.git

diff --git a/kernel/sys.c b/kernel/sys.c
index b5a8e844a968..ba3ddb43dd9f 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -2319,7 +2319,10 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
 		error = perf_event_task_enable();
 		break;
 	case PR_GET_TIMERSLACK:
-		error = current->timer_slack_ns;
+		if (current->timer_slack_ns > ULONG_MAX)
+			error = ULONG_MAX;
+		else
+			error = current->timer_slack_ns;
 		break;
 	case PR_SET_TIMERSLACK:
 		if (arg2 <= 0)