From: Andy Grover Date: Mon, 4 Mar 2013 21:52:09 +0000 (-0800) Subject: target/iscsi: Fix mutual CHAP auth on big-endian arches X-Git-Tag: v3.8.5~45 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=36dd1474a1b29616381b16a7f1b3fbb430e2d44f;p=karo-tx-linux.git target/iscsi: Fix mutual CHAP auth on big-endian arches commit 7ac9ad11b2a5cf77a92b58ee6b672ad2fa155eb1 upstream. See https://bugzilla.redhat.com/show_bug.cgi?id=916290 Used a temp var since we take its address in sg_init_one. Signed-off-by: Andy Grover Signed-off-by: Nicholas Bellinger Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/target/iscsi/iscsi_target_auth.c b/drivers/target/iscsi/iscsi_target_auth.c index db0cf7c8adde..a0fc7b9eea65 100644 --- a/drivers/target/iscsi/iscsi_target_auth.c +++ b/drivers/target/iscsi/iscsi_target_auth.c @@ -166,6 +166,7 @@ static int chap_server_compute_md5( { char *endptr; unsigned long id; + unsigned char id_as_uchar; unsigned char digest[MD5_SIGNATURE_SIZE]; unsigned char type, response[MD5_SIGNATURE_SIZE * 2 + 2]; unsigned char identifier[10], *challenge = NULL; @@ -355,7 +356,9 @@ static int chap_server_compute_md5( goto out; } - sg_init_one(&sg, &id, 1); + /* To handle both endiannesses */ + id_as_uchar = id; + sg_init_one(&sg, &id_as_uchar, 1); ret = crypto_hash_update(&desc, &sg, 1); if (ret < 0) { pr_err("crypto_hash_update() failed for id\n");