From 506ada89629ec7059b96ecfb0dc7d33ece0103ca Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Fri, 4 Sep 2026 17:05:56 -0700 Subject: bpf: mark a NULL kfunc argument precise check_kfunc_arg() allows bpf_register_is_null() for nullable arguments w/o marking the underlying scalar register precise. Hence a checkpoint created on such a path would prune against arbitrary scalar value. Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)") Signed-off-by: Eduard Zingerman Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com Signed-off-by: Alexei Starovoitov --- net/ipv4/igmp_internal.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 net/ipv4/igmp_internal.h (limited to 'net/ipv4/igmp_internal.h') diff --git a/net/ipv4/igmp_internal.h b/net/ipv4/igmp_internal.h new file mode 100644 index 000000000..0a1bcc8ec --- /dev/null +++ b/net/ipv4/igmp_internal.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef _LINUX_IGMP_INTERNAL_H +#define _LINUX_IGMP_INTERNAL_H + +struct inet_fill_args { + u32 portid; + u32 seq; + int event; + unsigned int flags; + int netnsid; + int ifindex; +}; + +int inet_fill_ifmcaddr(struct sk_buff *skb, struct net_device *dev, + const struct ip_mc_list *im, + struct inet_fill_args *args); +#endif -- cgit v1.3.1