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CVE-2025-38514

7.5 · HIGH

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix oops due to non-existence of prealloc backlog struct If an AF_RXRPC service socket is opened and bound, but calls ar…

Published Aug 16, 2025EPSS 0.37%

Overview

CVE-2025-38514 is a high-severity vulnerability. It was published on August 16, 2025 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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

rxrpc: Fix oops due to non-existence of prealloc backlog struct

If an AF_RXRPC service socket is opened and bound, but calls are

preallocated, then rxrpc_alloc_incoming_call() will oops because the

rxrpc_backlog struct doesn't get allocated until the first preallocation is

made.

Fix this by returning NULL from rxrpc_alloc_incoming_call() if there is no

backlog struct. This will cause the incoming call to be aborted.

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/0eef29385d715d4c7fd707b18d4a9b76c76dd5e6Refgit.kernel.org/stable/c/2c2e9ebeb036f9b1b09325ec5cfdfe0e78f357c3Refgit.kernel.org/stable/c/880a88f318cf1d2a0f4c0a7ff7b07e2062b434a4Refgit.kernel.org/stable/c/bf0ca6a1bc4fb904b598137c6718785a107e3adfRefgit.kernel.org/stable/c/d1ff5f9d2c5405681457262e23c720b08977c11fRefgit.kernel.org/stable/c/efc1b2b7c1a308b60df8f36bc2d7ce16d3999364Refgit.kernel.org/stable/c/f5e72b7824d08c206ce106d30cb37c4642900cccRefgit.kernel.org/stable/c/f7afb3ff01c42c49e8a143cdce400b95844bb506Reflists.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-2025-38514?

CVE-2025-38514 is a high-severity vulnerability. It was published on August 16, 2025 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-38514?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-38514?

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-2025-38514?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38514 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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