netdev - [PATCH 2/6] xfrm: compat: change expression for switch in xfrm

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Message-ID: <20230208114322.266510-3-steffen.klassert@secunet.com>
Date:   Wed, 8 Feb 2023 12:43:18 +0100
From:   Steffen Klassert <steffen.klassert@...unet.com>
To:     David Miller <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
CC:     Herbert Xu <herbert@...dor.apana.org.au>,
        Steffen Klassert <steffen.klassert@...unet.com>,
        <netdev@...r.kernel.org>
Subject: [PATCH 2/6] xfrm: compat: change expression for switch in xfrm_xlate64

From: Anastasia Belova <abelova@...ralinux.ru>

Compare XFRM_MSG_NEWSPDINFO (value from netlink
configuration messages enum) with nlh_src->nlmsg_type
instead of nlh_src->nlmsg_type - XFRM_MSG_BASE.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 4e9505064f58 ("net/xfrm/compat: Copy xfrm_spdattr_type_t atributes")
Signed-off-by: Anastasia Belova <abelova@...ralinux.ru>
Acked-by: Dmitry Safonov <0x7f454c46@...il.com>
Tested-by: Dmitry Safonov <0x7f454c46@...il.com>
Signed-off-by: Steffen Klassert <steffen.klassert@...unet.com>
---
 net/xfrm/xfrm_compat.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/xfrm/xfrm_compat.c b/net/xfrm/xfrm_compat.c
index a0f62fa02e06..12405aa5bce8 100644
--- a/net/xfrm/xfrm_compat.c
+++ b/net/xfrm/xfrm_compat.c
@@ -302,7 +302,7 @@ static int xfrm_xlate64(struct sk_buff *dst, const struct nlmsghdr *nlh_src)
 	nla_for_each_attr(nla, attrs, len, remaining) {
 		int err;
 
-		switch (type) {
+		switch (nlh_src->nlmsg_type) {
 		case XFRM_MSG_NEWSPDINFO:
 			err = xfrm_nla_cpy(dst, nla, nla_len(nla));
 			break;
-- 
2.34.1