{"id":2222607,"url":"http://patchwork.ozlabs.org/api/1.2/patches/2222607/?format=json","web_url":"http://patchwork.ozlabs.org/project/netfilter-devel/patch/20260413073105.2990210-1-1468888505@139.com/","project":{"id":26,"url":"http://patchwork.ozlabs.org/api/1.2/projects/26/?format=json","name":"Netfilter Development","link_name":"netfilter-devel","list_id":"netfilter-devel.vger.kernel.org","list_email":"netfilter-devel@vger.kernel.org","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260413073105.2990210-1-1468888505@139.com>","list_archive_url":null,"date":"2026-04-13T07:31:05","name":"[6.12.y] netfilter: conntrack: add missing netlink policy validations","commit_ref":null,"pull_url":null,"state":"not-applicable","archived":true,"hash":"dcbb8450e796e40025c11564a41a8c78844671cd","submitter":{"id":92514,"url":"http://patchwork.ozlabs.org/api/1.2/people/92514/?format=json","name":"Li hongliang","email":"1468888505@139.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/netfilter-devel/patch/20260413073105.2990210-1-1468888505@139.com/mbox/","series":[{"id":499657,"url":"http://patchwork.ozlabs.org/api/1.2/series/499657/?format=json","web_url":"http://patchwork.ozlabs.org/project/netfilter-devel/list/?series=499657","date":"2026-04-13T07:31:05","name":"[6.12.y] netfilter: conntrack: add missing netlink policy validations","version":1,"mbox":"http://patchwork.ozlabs.org/series/499657/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2222607/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2222607/checks/","tags":{},"related":[],"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","netfilter-devel@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=139.com header.i=@139.com header.a=rsa-sha256\n header.s=dkim header.b=qQaMmMcp;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=104.64.211.4; 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[..]\n\n and: ... with exp->dir = 100, the access at\n ct->master->tuplehash[100] reads 5600 bytes past the start of a\n 320-byte nf_conn object, causing a slab-out-of-bounds read confirmed by\n UBSAN.\n\nFixes: 076a0ca02644 (\"netfilter: ctnetlink: add NAT support for expectations\")\nFixes: a258860e01b8 (\"netfilter: ctnetlink: add full support for SCTP to ctnetlink\")\nReported-by: Hyunwoo Kim \nSigned-off-by: Florian Westphal \nSigned-off-by: Li hongliang <1468888505@139.com>\n---\n net/netfilter/nf_conntrack_netlink.c | 2 +-\n net/netfilter/nf_conntrack_proto_sctp.c | 3 ++-\n 2 files changed, 3 insertions(+), 2 deletions(-)","diff":"diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c\nindex 323e147fe282..f51cdfba68fb 100644\n--- a/net/netfilter/nf_conntrack_netlink.c\n+++ b/net/netfilter/nf_conntrack_netlink.c\n@@ -3460,7 +3460,7 @@ ctnetlink_change_expect(struct nf_conntrack_expect *x,\n \n #if IS_ENABLED(CONFIG_NF_NAT)\n static const struct nla_policy exp_nat_nla_policy[CTA_EXPECT_NAT_MAX+1] = {\n-\t[CTA_EXPECT_NAT_DIR]\t= { .type = NLA_U32 },\n+\t[CTA_EXPECT_NAT_DIR]\t= NLA_POLICY_MAX(NLA_BE32, IP_CT_DIR_REPLY),\n \t[CTA_EXPECT_NAT_TUPLE]\t= { .type = NLA_NESTED },\n };\n #endif\ndiff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c\nindex 4cc97f971264..fabb2c1ca00a 100644\n--- a/net/netfilter/nf_conntrack_proto_sctp.c\n+++ b/net/netfilter/nf_conntrack_proto_sctp.c\n@@ -587,7 +587,8 @@ static int sctp_to_nlattr(struct sk_buff *skb, struct nlattr *nla,\n }\n \n static const struct nla_policy sctp_nla_policy[CTA_PROTOINFO_SCTP_MAX+1] = {\n-\t[CTA_PROTOINFO_SCTP_STATE]\t = { .type = NLA_U8 },\n+\t[CTA_PROTOINFO_SCTP_STATE]\t = NLA_POLICY_MAX(NLA_U8,\n+\t\t\t\t\t\t\t SCTP_CONNTRACK_HEARTBEAT_SENT),\n \t[CTA_PROTOINFO_SCTP_VTAG_ORIGINAL] = { .type = NLA_U32 },\n \t[CTA_PROTOINFO_SCTP_VTAG_REPLY] = { .type = NLA_U32 },\n };\n","prefixes":["6.12.y"]}