From: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Date: Tue, 19 Nov 2013 16:12:47 +0000 (+0100)
Subject: crypto: s390 - Fix aes-xts parameter corruption
X-Git-Tag: v3.2.54~80
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8ccf25d7c6295ab6112711419d3c056a2331e430;p=pandora-kernel.git

crypto: s390 - Fix aes-xts parameter corruption

commit 9dda2769af4f3f3093434648c409bb351120d9e8 upstream.

Some s390 crypto algorithms incorrectly use the crypto_tfm structure to
store private data. As the tfm can be shared among multiple threads, this
can result in data corruption.

This patch fixes aes-xts by moving the xts and pcc parameter blocks from
the tfm onto the stack (48 + 96 bytes).

Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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