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crypto: caam - Clamp AEAD SG list by input length
authorHerbert Xu <herbert@gondor.apana.org.au>
Mon, 8 Jun 2015 08:38:24 +0000 (16:38 +0800)
committerHerbert Xu <herbert@gondor.apana.org.au>
Tue, 9 Jun 2015 14:25:58 +0000 (22:25 +0800)
commit70c3c8a96a85d333b3ff1f24df84c0e179261a8a
tree60dfee06ecc515fa9113c1fd98b46ece0b6a7845
parentecb479d07a4e2db980965193511dbf2563d50db5
crypto: caam - Clamp AEAD SG list by input length

Currently caam assumes that the SG list contains exactly the number
of bytes required.  This assumption is incorrect.

Up until now this has been harmless.  However with the new AEAD
interface this now breaks as the AD SG list contains more bytes
than just the AD.

This patch fixes this by always clamping the AD SG list by the
specified AD length.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
drivers/crypto/caam/caamalg.c
drivers/crypto/caam/sg_sw_sec4.h