What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-07-09 · updated 2026-06-17
• Weakness: CWE-476

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.

Affected products

• Debian Linux: 11.0
• Linux kernel: from 5.7.1 before 5.10.240; from 5.11 before 5.15.187; from 5.16 before 6.1.143; from 6.2 before 6.6.96; from 6.7 before 6.12.36; from 6.13 before 6.15.5 — fixed in 5.10.240, 5.15.187, 6.1.143, 6.12.36, 6.15.5, 6.6.96

How to fix

Upgrade to a fixed version: Linux kernel 5.10.240, 5.15.187, 6.1.143, 6.12.36. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3c709dce16999bf6a1d2ce377deb5dd6fdd8cb08
• https://git.kernel.org/stable/c/41f6420ee845006354c004839fed07da71e34aee
• https://git.kernel.org/stable/c/88c88f91f4b3563956bb52e7a71a3640f7ece157
• https://git.kernel.org/stable/c/9199e8cb75f13a1650adcb3c6cad42789c43884e
• https://git.kernel.org/stable/c/a07005a77b18ae59b8471e7e4d991fa9f642b3c2
• https://git.kernel.org/stable/c/b993ea46b3b601915ceaaf3c802adf11e7d6bac6
• https://git.kernel.org/stable/c/ede31ad949ae0d03cb4c5edd79991586ad7c8bb8
• https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
• https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

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