From: Kuniyuki Iwashima Date: Wed, 11 Mar 2026 05:19:53 +0000 (+0000) Subject: smack: Remove IPPROTO_UDPLITE support in security_sock_rcv_skb(). X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b972cb5d397e0e9575d953a6c6b983c708de0326;p=thirdparty%2Flinux.git smack: Remove IPPROTO_UDPLITE support in security_sock_rcv_skb(). smack_socket_sock_rcv_skb() is registered as socket_sock_rcv_skb, which is called as security_sock_rcv_skb() in sk_filter_trim_cap(). Now that UDP-Lite is gone, let's remove the IPPROTO_UDPLITE support in smack_socket_sock_rcv_skb(). Signed-off-by: Kuniyuki Iwashima Reviewed-by: Willem de Bruijn Acked-by: Casey Schaufler Link: https://patch.msgid.link/20260311052020.1213705-7-kuniyu@google.com Signed-off-by: Jakub Kicinski --- diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index 98af9d7b94346..e581d64659465 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -4176,7 +4176,6 @@ static int smk_skb_to_addr_ipv6(struct sk_buff *skb, struct sockaddr_in6 *sip) sip->sin6_port = th->source; break; case IPPROTO_UDP: - case IPPROTO_UDPLITE: uh = skb_header_pointer(skb, offset, sizeof(_udph), &_udph); if (uh != NULL) sip->sin6_port = uh->source; @@ -4301,8 +4300,7 @@ static int smack_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) #if IS_ENABLED(CONFIG_IPV6) case PF_INET6: proto = smk_skb_to_addr_ipv6(skb, &sadd); - if (proto != IPPROTO_UDP && proto != IPPROTO_UDPLITE && - proto != IPPROTO_TCP) + if (proto != IPPROTO_UDP && proto != IPPROTO_TCP) break; #ifdef SMACK_IPV6_SECMARK_LABELING skp = smack_from_skb(skb);