CVE-2025-38514

Medium

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.

Package Linux Kernel
Published 2025-08-16
Last modified 2026-01-22
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

5.5

out of 10
Medium
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected versions

Linux kernel versions 4.9 and later are affected. Fixed in 5.4.296, 5.10.240, 5.15.189, 6.1.146, 6.6.99, 6.12.39, 6.15.7, 6.16 and their respective stable series.

Affected from
≥ 4.9
Fixed in
✓ 5.4.296 5.4.x ✓ 5.10.240 5.10.x ✓ 5.15.189 5.15.x ✓ 6.1.146 6.1.x ✓ 6.6.99 6.6.x ✓ 6.12.39 6.12.x ✓ 6.15.7 6.15.x ✓ 6.16

References

The following references provide additional information about CVE-2025-38514 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

8 patch commits total View all on NVD

Frequently asked questions

  • What is CVE-2025-38514?

    CVE-2025-38514 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 4.9 onward and has been patched in 5.4.296, 5.10.240, 5.15.189 and others. CVE-2025-38514 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2025-38514?

    CVE-2025-38514 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2025-38514?

    Yes — CVE-2025-38514 has been patched. Fixed versions include 5.4.296, 5.10.240, 5.15.189 and others. If you are running Linux kernel 4.9 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2025-38514 actively exploited?

    No — CVE-2025-38514 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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