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CVE-2025-38461

7.0 · HIGH

In the Linux kernel, the following vulnerability has been resolved: vsock: Fix transport_* TOCTOU Transport assignment may race with module unload.

Published Jul 25, 2025CWE-367EPSS 0.13%

Overview

CVE-2025-38461 is a high-severity vulnerability. It was published on July 25, 2025 and has a CVSS 3.1 base score of 7.0 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

vsock: Fix transport_* TOCTOU

Transport assignment may race with module unload. Protect new_transport

from becoming a stale pointer.

This also takes care of an insecure call in vsock_use_local_transport();

add a lockdep assert.

BUG: unable to handle page fault for address: fffffbfff8056000

Oops: Oops: 0000 [#1] SMP KASAN

RIP: 0010:vsock_assign_transport+0x366/0x600

Call Trace:

vsock_connect+0x59c/0xc40

__sys_connect+0xe8/0x100

__x64_sys_connect+0x6e/0xc0

do_syscall_64+0x92/0x1c0

entry_SYSCALL_64_after_hwframe+0x4b/0x53

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/36a439049b34cca0b3661276049b84a1f76cc21aRefgit.kernel.org/stable/c/687aa0c5581b8d4aa87fd92973e4ee576b550cdfRefgit.kernel.org/stable/c/7b73bddf54777fb62d4d8c7729d0affe6df04477Refgit.kernel.org/stable/c/8667e8d0eb46bc54fdae30ba2f4786407d3d88ebRefgit.kernel.org/stable/c/9ce53e744f18e73059d3124070e960f3aa9902bfRefgit.kernel.org/stable/c/9d24bb6780282b0255b9929abe5e8f98007e2c6eRefgit.kernel.org/stable/c/ae2c712ba39c7007de63cb0c75b51ce1caaf1da5Reflists.debian.org/debian-lts-announce/2025/10/msg00007.htmlReflists.debian.org/debian-lts-announce/2025/10/msg00008.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38461?

CVE-2025-38461 is a high-severity vulnerability. It was published on July 25, 2025 and has a CVSS 3.1 base score of 7.0 (HIGH).

How severe is CVE-2025-38461?

This vulnerability has a CVSS 3.1 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-38461?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-38461?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38461 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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