From c436a1743333c5342216e818518b3a34fae2be79 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Tue, 21 Feb 2023 13:54:00 +0800 Subject: [PATCH] xfrm: Allow transport-mode states with AF_UNSPEC selector [ Upstream commit c276a706ea1f51cf9723ed8484feceaf961b8f89 ] xfrm state selectors are matched against the inner-most flow which can be of any address family. Therefore middle states in nested configurations need to carry a wildcard selector in order to work at all. However, this is currently forbidden for transport-mode states. Fix this by removing the unnecessary check. Fixes: 13996378e658 ("[IPSEC]: Rename mode to outer_mode and add inner_mode") Reported-by: David George Signed-off-by: Herbert Xu Signed-off-by: Steffen Klassert Signed-off-by: Sasha Levin --- net/xfrm/xfrm_state.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index 0f88cb6..2f4cf97 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -2649,11 +2649,6 @@ int __xfrm_init_state(struct xfrm_state *x, bool init_replay, bool offload, goto error; } - if (!(inner_mode->flags & XFRM_MODE_FLAG_TUNNEL)) { - NL_SET_ERR_MSG(extack, "Only tunnel modes can accommodate an AF_UNSPEC selector"); - goto error; - } - x->inner_mode = *inner_mode; if (x->props.family == AF_INET) -- 2.7.4