From 75467f60a3d14f08f86f2b353298d2826382ff23 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 25 Sep 2026 15:55:03 -0700 Subject: Merge tag 'ipe-pr-20260925' of git://git.kernel.org/pub/scm/linux/kernel/git/wufan/ipe Pull IPE fixes from Fan Wu: "Two fixes for use-after-free issues found by recent LLM-assisted code analysis. - move successful policy load auditing under the new policy directory's inode lock, preventing a concurrent policy deletion from freeing the policy while it is still being audited - protect the dm-verity root hash with RCU, preventing policy evaluation from racing with root hash replacement during preresume" * tag 'ipe-pr-20260925' of git://git.kernel.org/pub/scm/linux/kernel/git/wufan/ipe: ipe: protect the dm-verity root hash with RCU ipe: fix use-after-free when auditing a newly loaded policy --- net/ipv4/netlink.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 net/ipv4/netlink.c (limited to 'net/ipv4/netlink.c') diff --git a/net/ipv4/netlink.c b/net/ipv4/netlink.c new file mode 100644 index 000000000..b920e1bdc --- /dev/null +++ b/net/ipv4/netlink.c @@ -0,0 +1,33 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include +#include +#include +#include +#include +#include +#include + +int rtm_getroute_parse_ip_proto(struct nlattr *attr, u8 *ip_proto, u8 family, + struct netlink_ext_ack *extack) +{ + *ip_proto = nla_get_u8(attr); + + switch (*ip_proto) { + case IPPROTO_TCP: + case IPPROTO_UDP: + return 0; + case IPPROTO_ICMP: + if (family != AF_INET) + break; + return 0; +#if IS_ENABLED(CONFIG_IPV6) + case IPPROTO_ICMPV6: + if (family != AF_INET6) + break; + return 0; +#endif + } + NL_SET_ERR_MSG(extack, "Unsupported ip proto"); + return -EOPNOTSUPP; +} +EXPORT_SYMBOL_GPL(rtm_getroute_parse_ip_proto); -- cgit v1.3.1