When calculating the multipath hash for input routes the flow info is
not available and therefore should not be used.
Fixes: 24ba14406c5c ("route: Add multipath_hash in flowi_common to make
user-define hash")
Signed-off-by: Ido Schimmel <[email protected]>
Cc: wenxu <[email protected]>
---
net/ipv4/route.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 7cf4c8305071..e3ac458b5d8b 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1820,7 +1820,7 @@ static void ip_multipath_l3_keys(const struct sk_buff
*skb,
int fib_multipath_hash(const struct net *net, const struct flowi4 *fl4,
const struct sk_buff *skb, struct flow_keys *flkeys)
{
- u32 multipath_hash = fl4->flowi4_multipath_hash;
+ u32 multipath_hash = fl4 ? fl4->flowi4_multipath_hash : 0;
struct flow_keys hash_keys;
u32 mhash;
--
2.20.1
