From bf433416e67597ba105ece55b3136557874945db Mon Sep 17 00:00:00 2001
From: Lars Persson <lars.persson@axis.com>
Date: Tue, 25 Aug 2015 11:59:15 +0200
Subject: crypto: algif_aead - fix for multiple operations on AF_ALG sockets

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>
---
 crypto/algif_aead.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'crypto')

diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c
index 38a6cab7aeca..0aa6fdfb448a 100644
--- a/crypto/algif_aead.c
+++ b/crypto/algif_aead.c
@@ -90,6 +90,7 @@ 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;
-- 
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