From 4890b27f8143bb8135c3cd89482d14d94b0026f2 Mon Sep 17 00:00:00 2001
From: Lars Persson <lars.persson@axis.com>
Date: Tue, 25 Aug 2015 11:59:15 +0200
Subject: [PATCH] crypto: algif_aead - fix for multiple operations on AF_ALG
 sockets

Orabug: 25243093

The tsgl scatterlist must be re-initialized after each
operation. Otherwise the sticky bits in the page_link will corrupt the
list with pre-mature termination or false chaining.

Signed-off-by: Lars Persson <larper@axis.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
(cherry picked from commit bf433416e67597ba105ece55b3136557874945db)
Signed-off-by: Ethan Zhao <ethan.zhao@oracle.com>
---
 crypto/algif_aead.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c
index 69abada22373..d0cac026d2dd 100644
--- a/crypto/algif_aead.c
+++ b/crypto/algif_aead.c
@@ -89,6 +89,7 @@ static void aead_put_sgl(struct sock *sk)
 		put_page(sg_page(sg + i));
 		sg_assign_page(sg + i, NULL);
 	}
+	sg_init_table(sg, ALG_MAX_PAGES);
 	sgl->cur = 0;
 	ctx->used = 0;
 	ctx->more = 0;
-- 
2.50.1