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CVE-2014-5077 Kernel/SCTP: fix a NULL pointer dereference
A NULL pointer dereference flaw was found in the way the
Linux kernel's Stream Control Transmission Protocol
(SCTP) implementation handled simultaneous connections
between the same hosts. A remote attacker could use this
flaw to crash the system.
Upstream-Status: Backport (from v3.16, commit 1be9a950c646c)
References:
- https://access.redhat.com/security/cve/CVE-2014-5077
- http://patchwork.ozlabs.org/patch/372475/
Fixes: 730fc3d05cd4 ("[SCTP]: Implete SCTP-AUTH parameter processing")
Reported-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Tested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Cc: Vlad Yasevich <vyasevich@gmail.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Liviu Gheorghisan <liviu.gheorghisan@enea.com>
---
net/sctp/associola.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index 9de23a2..06a9ee6 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -1097,6 +1097,7 @@ void sctp_assoc_update(struct sctp_association *asoc,
asoc->c = new->c;
asoc->peer.rwnd = new->peer.rwnd;
asoc->peer.sack_needed = new->peer.sack_needed;
+ asoc->peer.auth_capable = new->peer.auth_capable;
asoc->peer.i = new->peer.i;
sctp_tsnmap_init(&asoc->peer.tsn_map, SCTP_TSN_MAP_INITIAL,
asoc->peer.i.initial_tsn, GFP_ATOMIC);
--
1.9.1
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