[PATCH 5.15 227/846] xfrm: fix a small bug in xfrm_sa_len()

[Greg Kroah-Hartman]

From: Eric Dumazet <edumazet@xxxxxxxxxx>

[ Upstream commit 7770a39d7c63faec6c4f33666d49a8cb664d0482 ]

copy_user_offload() will actually push a struct struct xfrm_user_offload,
which is different than (struct xfrm_state *)->xso
(struct xfrm_state_offload)

Fixes: d77e38e612a01 ("xfrm: Add an IPsec hardware offloading API")
Signed-off-by: Eric Dumazet <edumazet@xxxxxxxxxx>
Cc: Steffen Klassert <steffen.klassert@xxxxxxxxxxx>
Signed-off-by: Steffen Klassert <steffen.klassert@xxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 net/xfrm/xfrm_user.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 3a3cb09eec122..11574314de09f 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -3058,7 +3058,7 @@ static inline unsigned int xfrm_sa_len(struct xfrm_state *x)
 	if (x->props.extra_flags)
 		l += nla_total_size(sizeof(x->props.extra_flags));
 	if (x->xso.dev)
-		 l += nla_total_size(sizeof(x->xso));
+		 l += nla_total_size(sizeof(struct xfrm_user_offload));
 	if (x->props.smark.v | x->props.smark.m) {
 		l += nla_total_size(sizeof(x->props.smark.v));
 		l += nla_total_size(sizeof(x->props.smark.m));
-- 
2.34.1