linux-kernel - [PATCH 5.0 014/238] crypto: caam

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Message-Id: <20190322111259.058498867@linuxfoundation.org>
Date:   Fri, 22 Mar 2019 12:13:53 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Pankaj Gupta <pankaj.gupta@....com>,
        Arun Pathak <arun.pathak@....com>,
        Horia Geanta <horia.geanta@....com>,
        Herbert Xu <herbert@...dor.apana.org.au>
Subject: [PATCH 5.0 014/238] crypto: caam - fixed handling of sg list

5.0-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Pankaj Gupta <pankaj.gupta@....com>

commit 42e95d1f10dcf8b18b1d7f52f7068985b3dc5b79 upstream.

when the source sg contains more than 1 fragment and
destination sg contains 1 fragment, the caam driver
mishandle the buffers to be sent to caam.

Fixes: f2147b88b2b1 ("crypto: caam - Convert GCM to new AEAD interface")
Cc: <stable@...r.kernel.org> # 4.2+
Signed-off-by: Pankaj Gupta <pankaj.gupta@....com>
Signed-off-by: Arun Pathak <arun.pathak@....com>
Reviewed-by: Horia Geanta <horia.geanta@....com>
Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/crypto/caam/caamalg.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -1040,6 +1040,7 @@ static void init_aead_job(struct aead_re
 	if (unlikely(req->src != req->dst)) {
 		if (edesc->dst_nents == 1) {
 			dst_dma = sg_dma_address(req->dst);
+			out_options = 0;
 		} else {
 			dst_dma = edesc->sec4_sg_dma +
 				  sec4_sg_index *