What is CVE-2023-54049?

CVE-2023-54049 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 4.13 onward and patched in 4.14.326, 4.19.295, 5.4.257 and others. CVE-2023-54049 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-54049?

CVE-2023-54049 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2023-54049?

Yes, CVE-2023-54049 has been patched. Fixed versions include 4.14.326, 4.19.295, 5.4.257 and others. If you are running Linux kernel 4.13 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-54049 actively exploited?

CVE-2023-54049 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-54049

In the Linux kernel, the following vulnerability has been resolved: rpmsg: glink: Add check for kstrdup Add check for the return value of kstrdup() and return the error if it fails in order to avoid NULL pointer dereference.

Package Linux Kernel

Published 2025-12-24

Last modified 2026-04-15

Patch available

Yes

Affected versions

Linux kernel versions 4.13 and later are affected. Fixed in 4.14.326, 4.19.295, 5.4.257, 5.10.195, 5.15.132, 6.1.53, 6.4.16, 6.5.3, 6.6 and their respective stable series.

Affected from

≥ 4.13

Fixed in

✓ 4.14.326 4.14.x ✓ 4.19.295 4.19.x ✓ 5.4.257 5.4.x ✓ 5.10.195 5.10.x ✓ 5.15.132 5.15.x ✓ 6.1.53 6.1.x ✓ 6.4.16 6.4.x ✓ 6.5.3 6.5.x ✓ 6.6

References

The following references provide additional information about CVE-2023-54049 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/13928a837e0f014dac0322dd9f8a67c486e7f232
Patch
Kernel patch commit
https://git.kernel.org/stable/c/174cf8853857c190a3c4f1f1d2d06cfd095fe859
Patch
Kernel patch commit
https://git.kernel.org/stable/c/5197498c902502127a47abda5359dd7f1d41946f
Patch

9 patch commits total View all on NVD

Frequently asked questions

What is CVE-2023-54049?

CVE-2023-54049 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.13 onward and has been patched in 4.14.326, 4.19.295, 5.4.257 and others. CVE-2023-54049 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2023-54049?

Yes — CVE-2023-54049 has been patched. Fixed versions include 4.14.326, 4.19.295, 5.4.257 and others. If you are running Linux kernel 4.13 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-54049 actively exploited?

No — CVE-2023-54049 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.