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| author | Willem de Bruijn <willemb@google.com> | 2017-12-13 20:41:06 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-12-15 17:30:36 +0100 |
| commit | 35b99dffc3f710cafceee6c8c6ac6a98eb2cb4bf (patch) | |
| tree | 200b606f78748bd6db248d625e848de6afdc3620 /net/core | |
| parent | Merge branch 's390-fixes' (diff) | |
| download | linux-35b99dffc3f710cafceee6c8c6ac6a98eb2cb4bf.tar.xz linux-35b99dffc3f710cafceee6c8c6ac6a98eb2cb4bf.zip | |
sock: free skb in skb_complete_tx_timestamp on error
skb_complete_tx_timestamp must ingest the skb it is passed. Call
kfree_skb if the skb cannot be enqueued.
Fixes: b245be1f4db1 ("net-timestamp: no-payload only sysctl")
Fixes: 9ac25fc06375 ("net: fix socket refcounting in skb_complete_tx_timestamp()")
Reported-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/skbuff.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 6b0ff396fa9d..a592ca025fc4 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -4293,7 +4293,7 @@ void skb_complete_tx_timestamp(struct sk_buff *skb, struct sock *sk = skb->sk; if (!skb_may_tx_timestamp(sk, false)) - return; + goto err; /* Take a reference to prevent skb_orphan() from freeing the socket, * but only if the socket refcount is not zero. @@ -4302,7 +4302,11 @@ void skb_complete_tx_timestamp(struct sk_buff *skb, *skb_hwtstamps(skb) = *hwtstamps; __skb_complete_tx_timestamp(skb, sk, SCM_TSTAMP_SND, false); sock_put(sk); + return; } + +err: + kfree_skb(skb); } EXPORT_SYMBOL_GPL(skb_complete_tx_timestamp); |