xfrm6: Properly handle unsupported protocols
authorSteffen Klassert <steffen.klassert@secunet.com>
Tue, 29 Apr 2014 06:23:03 +0000 (08:23 +0200)
committerSteffen Klassert <steffen.klassert@secunet.com>
Tue, 6 May 2014 05:08:38 +0000 (07:08 +0200)
We don't catch the case if an unsupported protocol is submitted
to the xfrm6 protocol handlers, this can lead to NULL pointer
dereferences. Fix this by adding the appropriate checks.

Fixes: 7e14ea15 ("xfrm6: Add IPsec protocol multiplexer")
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

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