diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 9c80212..05cfee7 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -3314,6 +3314,8 @@
 			return -EBUSY;
 		if (copy_from_user(&val, optval, sizeof(val)))
 			return -EFAULT;
+		if (val > INT_MAX)
+			return -EINVAL;
 		po->tp_reserve = val;
 		return 0;
 	}