netfilter: nf_tables: use list_del_rcu for netlink hooks
CVE-2026-46324 · published 9 Jun 2026
How serious is it
- Severity: high, CVSS score 7.8 out of 10.
- No exploit prediction (EPSS) score yet.
- Not on the CISA list of exploited vulnerabilities.
- No public exploit in Exploit-DB.
Is your app affected by CVE-2026-46324?
Paste this prompt into Claude Code, Cursor or any AI coding tool: it runs a free Shippable scan of your project and fixes what it finds. Built with Lovable, Bolt or v0? Scan your live app. Or upload your package file.
Who is affected
- Linux Linux: f9a43007d3f7ba76d5e7f9421094f00f2ef202f8 to < 2405730fde96f7fa483a5862e323b681e0e09f54, f9a43007d3f7ba76d5e7f9421094f00f2ef202f8 to < fe45e203527af8a2c0dc4c8a7b56c09c74b796c8, f9a43007d3f7ba76d5e7f9421094f00f2ef202f8 to < 0bd93ce4f3c35e845532184331d7917d7e562c80, f9a43007d3f7ba76d5e7f9421094f00f2ef202f8 to < 0f33e8ad6ac563ae2233dd7f75884e0ee010521d
- Linux Linux: 5.19
How to check
- Find out whether you run the affected product and which version, then compare it with the versions above.
How to fix
Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.
- Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
- If a vulnerable version was live, check your logs and rotate the secrets that server could read.
The advisory
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.
Check your whole app
Dependencies are only half of it. Free and read-only: before you push, run npx shippable-dev scan localhost:3000 in your project folder, no account needed. For your live app, you prove it's yours with a one-line tag first.
References
- git.kernel.org/stable/c/2405730fde96f7fa483a5862e323b681e0e09f54
- git.kernel.org/stable/c/fe45e203527af8a2c0dc4c8a7b56c09c74b796c8
- git.kernel.org/stable/c/0bd93ce4f3c35e845532184331d7917d7e562c80
- git.kernel.org/stable/c/0f33e8ad6ac563ae2233dd7f75884e0ee010521d
- git.kernel.org/stable/c/f3224ee463f8f6f6ced7dcdf6081add4f8128527
Merged from CVE List. Last updated 25 Oct 2026. All vulnerabilities · RSS · JSON