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| author | Cong Wang <xiyou.wangcong@gmail.com> | 2018-12-10 23:45:45 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-01-09 19:38:34 +0300 |
| commit | b66ecc4f0b36597ee993b93f3a3a161f8309bab4 (patch) | |
| tree | 9cd0fe6f620eae76d85c9606beae49dea9859d06 /net | |
| parent | f404723deb695a00ea2cb7800b2c2135260dfcf8 (diff) | |
| download | linux-b66ecc4f0b36597ee993b93f3a3a161f8309bab4.tar.xz | |
tipc: fix a double kfree_skb()
[ Upstream commit acb4a33e9856d5fa3384b87d3d8369229be06d31 ]
tipc_udp_xmit() drops the packet on error, there is no
need to drop it again.
Fixes: ef20cd4dd163 ("tipc: introduce UDP replicast")
Reported-and-tested-by: syzbot+eae585ba2cc2752d3704@syzkaller.appspotmail.com
Cc: Ying Xue <ying.xue@windriver.com>
Cc: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/tipc/udp_media.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/net/tipc/udp_media.c b/net/tipc/udp_media.c index e685af4f5483..da2d311476ab 100644 --- a/net/tipc/udp_media.c +++ b/net/tipc/udp_media.c @@ -245,10 +245,8 @@ static int tipc_udp_send_msg(struct net *net, struct sk_buff *skb, } err = tipc_udp_xmit(net, _skb, ub, src, &rcast->addr); - if (err) { - kfree_skb(_skb); + if (err) goto out; - } } err = 0; out: |