[Bridge] [PATCH] netfilter: nf_conntrack_bridge: Fix not free when error

[Yajun Deng]

It should be added kfree_skb_list() when err is not equal to zero
in nf_br_ip_fragment().

Fixes: 3c171f496ef5 ("netfilter: bridge: add connection tracking system")
Signed-off-by: Yajun Deng <yajun.d...@linux.dev>
---
 net/bridge/netfilter/nf_conntrack_bridge.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/net/bridge/netfilter/nf_conntrack_bridge.c 
b/net/bridge/netfilter/nf_conntrack_bridge.c
index 8d033a75a766..059f53903eda 100644
--- a/net/bridge/netfilter/nf_conntrack_bridge.c
+++ b/net/bridge/netfilter/nf_conntrack_bridge.c
@@ -83,12 +83,16 @@ static int nf_br_ip_fragment(struct net *net, struct sock 
*sk,
 
                        skb->tstamp = tstamp;
                        err = output(net, sk, data, skb);
-                       if (err || !iter.frag)
-                               break;
-
+                       if (err) {
+                               kfree_skb_list(iter.frag);
+                               return err;
+                       }
+
+                       if (!iter.frag)
+                               return 0;
+
                        skb = ip_fraglist_next(&iter);
                }
-               return err;
        }
 slow_path:
        /* This is a linearized skbuff, the original geometry is lost for us.
-- 
2.32.0