diff options
| author |   Roopa Prabhu <roopa@cumulusnetworks.com> | 2017-05-31 22:53:25 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-06-01 11:30:41 -0400 |
| commit | ba52d61e0ffbb8538d5f07071d38a78afb920176 (patch) | |
| tree | 31500fe3f17a83516f0c40354bde6bf6e35304e5 /net/ipv4 | |
| parent | bpf: Take advantage of stack_depth tracking in sparc64 JIT (diff) | |
| download | linux-dev-ba52d61e0ffbb8538d5f07071d38a78afb920176.tar.xz linux-dev-ba52d61e0ffbb8538d5f07071d38a78afb920176.zip | |
ipv4: route: restore skb_dst_set in inet_rtm_getroute
recent updates to inet_rtm_getroute dropped skb_dst_set in
inet_rtm_getroute. This patch restores it because it is
needed to release the dst correctly.
Fixes: 3765d35ed8b9 ("net: ipv4: Convert inet_rtm_getroute to rcu versions of route lookup")
Reported-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/route.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c index f1f2e5aaa2d6..9b38cf18144e 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -2547,8 +2547,9 @@ EXPORT_SYMBOL_GPL(ip_route_output_flow); /* called with rcu_read_lock held */ static int rt_fill_info(struct net *net, __be32 dst, __be32 src, u32 table_id, struct flowi4 *fl4, struct sk_buff *skb, u32 portid, - u32 seq, struct rtable *rt) + u32 seq) { + struct rtable *rt = skb_rtable(skb); struct rtmsg *r; struct nlmsghdr *nlh; unsigned long expires = 0; @@ -2750,6 +2751,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, if (err) goto errout_free; + skb_dst_set(skb, &rt->dst); if (rtm->rtm_flags & RTM_F_NOTIFY) rt->rt_flags |= RTCF_NOTIFY; @@ -2763,8 +2765,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, fl4.flowi4_tos, res.fi, 0); else err = rt_fill_info(net, dst, src, table_id, &fl4, skb, - NETLINK_CB(in_skb).portid, nlh->nlmsg_seq, - rt); + NETLINK_CB(in_skb).portid, nlh->nlmsg_seq); if (err < 0) goto errout_free; |