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| author | Erik Hugne <erik.hugne@ericsson.com> | 2015-09-18 10:46:31 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-09-20 22:31:20 -0700 |
| commit | 4e3ae00100945d39e1f83b7c0179a114ccf55759 (patch) | |
| tree | 0d911950c7ea216376f756cd1e4d33a7ce9ba449 /net/tipc | |
| parent | aab0c0e62ec4af224d1b6b40fca65055d403400b (diff) | |
| download | linux-4e3ae00100945d39e1f83b7c0179a114ccf55759.tar.gz linux-4e3ae00100945d39e1f83b7c0179a114ccf55759.tar.bz2 linux-4e3ae00100945d39e1f83b7c0179a114ccf55759.zip | |
tipc: reinitialize pointer after skb linearize
The msg pointer into header may change after skb linearization.
We must reinitialize it after calling skb_linearize to prevent
operating on a freed or invalid pointer.
Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Reported-by: Tamás Végh <tamas.vegh@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc')
| -rw-r--r-- | net/tipc/msg.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/tipc/msg.c b/net/tipc/msg.c index 562c926a51cc..c5ac436235e0 100644 --- a/net/tipc/msg.c +++ b/net/tipc/msg.c @@ -539,6 +539,7 @@ bool tipc_msg_lookup_dest(struct net *net, struct sk_buff *skb, int *err) *err = -TIPC_ERR_NO_NAME; if (skb_linearize(skb)) return false; + msg = buf_msg(skb); if (msg_reroute_cnt(msg)) return false; dnode = addr_domain(net, msg_lookup_scope(msg)); |