From: Colin Ian King <colin.k...@canonical.com>
The rol32 call is currently rotating hash but the rol'd value is
being discarded. I believe the current code is incorrect and hash
should be assigned the rotated value returned from rol32.
Thanks to David Lebrun for spotting this.
Signed-off-by: Colin Ian King <colin.k...@canonical.com>
---
include/net/ipv6.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 50eebccbf919..190015652168 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -843,7 +843,7 @@ static inline __be32 ip6_make_flowlabel(struct net *net,
struct sk_buff *skb,
* to minimize possbility that any useful information to an
* attacker is leaked. Only lower 20 bits are relevant.
*/
- rol32(hash, 16);
+ hash = rol32(hash, 16);
flowlabel = (__force __be32)hash & IPV6_FLOWLABEL_MASK;
--
2.17.1
