CVE-2025-38251 atm: clip: prevent NULL deref in clip_push()

What is CVE-2025-38251?

CVE-2025-38251 is a medium-severity vulnerability in Debian Debian Linux, published on 9 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-476

Which versions are affected by CVE-2025-38251?

It affects 2 products.

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2025-38251?

Apply the vendor's patch.

Is CVE-2025-38251 being exploited?

There is no known exploitation of CVE-2025-38251 in the wild and no public exploit code.

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• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-64868, AZL-72790, BELL-CVE-2025-38251, DEBIAN-CVE-2025-38251, GHSA-3x3g-jxm8-5fvx, ROOT-OS-DEBIAN-11-CVE-2025-38251 and 4 more.