From: Piotr Sawicki Date: Thu, 19 Jul 2018 09:45:16 +0000 (+0200) Subject: Smack: Check UDP-Lite and DCCP protocols during IPv6 handling X-Git-Tag: v4.19-rc1~126^2^2~1 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=a07ef9516477aef2d052d75129a48f9f94d3b3f3;p=linux-platform-drivers-x86.git Smack: Check UDP-Lite and DCCP protocols during IPv6 handling The smack_socket_sock_rcv_skb() function is checking smack labels only for UDP and TCP frames carried in IPv6 packets. From now on, it is able also to handle UDP-Lite and DCCP protocols. Signed-off-by: Piotr Sawicki Signed-off-by: Casey Schaufler --- diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index c4feb954d53f..aff8397e8c7e 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -3895,6 +3895,7 @@ 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; @@ -3985,7 +3986,8 @@ access_check: #if IS_ENABLED(CONFIG_IPV6) case PF_INET6: proto = smk_skb_to_addr_ipv6(skb, &sadd); - if (proto != IPPROTO_UDP && proto != IPPROTO_TCP) + if (proto != IPPROTO_UDP && proto != IPPROTO_UDPLITE && + proto != IPPROTO_TCP && proto != IPPROTO_DCCP) break; #ifdef SMACK_IPV6_SECMARK_LABELING if (skb && skb->secmark != 0)