tipc: fix shift wrapping bug in map_get()

There is a shift wrapping bug in this code so anything thing above 31 will return false. Fixes: 35c55c9 ("tipc: add neighbor monitoring framework") Signed-off-by: Dan Carpenter <[email protected]> Signed-off-by: David S. Miller <[email protected]>
niw · Sep 2, 2022 · e2b224a · e2b224a
1 parent 9efd232
commit e2b224a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/net/tipc/monitor.c b/net/tipc/monitor.c
@@ -160,7 +160,7 @@ static void map_set(u64 *up_map, int i, unsigned int v)
 
 static int map_get(u64 up_map, int i)
 {
-	return (up_map & (1 << i)) >> i;
+	return (up_map & (1ULL << i)) >> i;
 }
 
 static struct tipc_peer *peer_prev(struct tipc_peer *peer)