ah: Correctly pass error codes in ahash output callback.
authorNick Bowler <nbowler@elliptictech.com>
Tue, 8 Nov 2011 12:12:44 +0000 (12:12 +0000)
committerGreg Kroah-Hartman <gregkh@suse.de>
Fri, 9 Dec 2011 16:55:57 +0000 (08:55 -0800)
commitcfa73cca0cac4e07cc963f332aead8d118707432
treef6f330ee1076759f1faea1b14865f9b15e80c32f
parentaeed6baa702a285cf03b7dc4182ffc1a7f4e4ed6
ah: Correctly pass error codes in ahash output callback.

[ Upstream commit 069294e813ed5f27f82613b027609bcda5f1b914 ]

The AH4/6 ahash output callbacks pass nexthdr to xfrm_output_resume
instead of the error code.  This appears to be a copy+paste error from
the input case, where nexthdr is expected.  This causes the driver to
continuously add AH headers to the datagram until either an allocation
fails and the packet is dropped or the ahash driver hits a synchronous
fallback and the resulting monstrosity is transmitted.

Correct this issue by simply passing the error code unadulterated.

Signed-off-by: Nick Bowler <nbowler@elliptictech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
net/ipv4/ah4.c
net/ipv6/ah6.c