tree 1b8afadde8b3a60405163b60436897e1746084a2
parent 8eb55910521f3449a8125a38dd32fb676703395d
author Vladislav Yasevich <vladislav.yasevich@hp.com> 1131753955 -0800
committer David S. Miller <davem@davemloft.net> 1131753955 -0800

[SCTP]: Fix potential NULL pointer dereference in sctp_v4_get_saddr

It is possible to get to sctp_v4_get_saddr() without a valid
association.  This happens when processing OOTB packets and
the cached route entry is no longer valid.
However, when responding to OOTB packets we already properly
set the source address based on the information in the OOTB
packet.  So, if we we get to sctp_v4_get_saddr() without an
association we can simply return.

Signed-off-by: Vladislav Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>