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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , David Ahern , Ido Schimmel , linux-kernel@vger.kernel.org Subject: [PATCH net v2 1/3] xfrm: set the address family before the early invalid-state drop Date: Tue, 13 Oct 2026 15:46:08 +0800 Message-ID: <20261013074610.17808-2-q.h.hack.winter@gmail.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20261013074610.17808-1-q.h.hack.winter@gmail.com> References: <20261013074610.17808-1-q.h.hack.winter@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The early drop in xfrm_input() for a state that is no longer valid runs while family is still AF_UNSPEC, so xfrm_rcv_cb() cannot find the afinfo and the receive callback is never invoked for such a packet. Set the family from the state before the check so that the drop path dispatches the callback like every other drop does. Fixes: 5f24f41e8ea6 ("xfrm: Remove inner/outer modes from input path") Cc: stable@vger.kernel.org Signed-off-by: Qihang --- net/xfrm/xfrm_input.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c index 5ed87d51392a..ddf8fd75fd20 100644 --- a/net/xfrm/xfrm_input.c +++ b/net/xfrm/xfrm_input.c @@ -487,6 +487,7 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type) encap_type == UDP_ENCAP_ESPINUDP))) { x = xfrm_input_state(skb); xfrm_proto = x->type ? x->type->proto : nexthdr; + family = x->props.family; if (unlikely(x->km.state != XFRM_STATE_VALID)) { if (x->km.state == XFRM_STATE_ACQ) @@ -500,8 +501,6 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type) goto drop; } - family = x->props.family; - /* An encap_type of -2 indicates reconstructed inner packet */ if (encap_type == -2) goto resume_decapped; -- 2.54.0 (Apple Git-157)