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-rw-r--r--net/ipv6/route.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 12bba08..98aa50c 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -475,7 +475,7 @@ int rt6_route_rcv(struct net_device *dev, u8 *opt, int len,
lifetime = ntohl(rinfo->lifetime);
if (lifetime == 0xffffffff) {
/* infinity */
- } else if (lifetime > 0x7fffffff/HZ) {
+ } else if (lifetime > 0x7fffffff/HZ - 1) {
/* Avoid arithmetic overflow */
lifetime = 0x7fffffff/HZ - 1;
}