CVE-2026-46324 netfilter: nf_tables: use list_del_rcu for netlink hooks
A race condition in Linux kernel netfilter hooks can lead to denial of service when concurrent dumpers access the list.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-46324?
CVE-2026-46324 is a high-severity vulnerability in Linux kernel, published on 9 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: use list_del_rcu for netlink hooks
nft_netdev_unregister_hooks and __nft_unregister_flowtable_net_hooks need to use list_del_rcu(), this list can be walked by concurrent dumpers.
Add a new helper and use it consistently.
Weakness: CWE-362
Which versions are affected by CVE-2026-46324?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-46324?
Apply the vendor's patch.
Is CVE-2026-46324 being exploited?
There is no known exploitation of CVE-2026-46324 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-89687, BELL-CVE-2026-46324, DEBIAN-CVE-2026-46324, GHSA-42p7-8g8p-r7fh, ROOT-OS-DEBIAN-11-CVE-2026-46324, ROOT-OS-DEBIAN-12-CVE-2026-46324 and 4 more.