What is CVE-2023-54266?

CVE-2023-54266 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 4.14.263 onward and patched in 4.14.326, 4.19.295, 5.4.257 and others. CVE-2023-54266 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-54266?

CVE-2023-54266 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2023-54266?

Yes, CVE-2023-54266 has been patched. Fixed versions include 4.14.326, 4.19.295, 5.4.257 and others. If you are running Linux kernel 4.14.263 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-54266 actively exploited?

CVE-2023-54266 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-54266

In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb: m920x: Fix a potential memory leak in m920x_i2c_xfer() 'read' is freed when it is known to be NULL, but not when a read error occurs. Revert the logic to avoid a small leak, should a m920x_read() call fail.

Package Linux Kernel

Published 2025-12-30

Last modified 2026-04-15

Patch available

Yes

Affected versions

Linux kernel versions 4.14.263, 4.19.226, 5.4.174, 5.10.94, 5.15.17, 4.4.300, 4.9.298, 5.16.3, 5.17 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

≥ 4.14.263 ≥ 4.19.226 ≥ 5.4.174 ≥ 5.10.94 ≥ 5.15.17 ≥ 4.4.300 ≥ 4.9.298 ≥ 5.16.3 ≥ 5.17

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

9 total

Showing 5 of 9 references View all on NVD

Frequently asked questions

What is CVE-2023-54266?

CVE-2023-54266 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.14.263 onward and has been patched in 4.14.326, 4.19.295, 5.4.257 and others. CVE-2023-54266 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2023-54266?

Yes. CVE-2023-54266 has been patched. Fixed versions include 4.14.326, 4.19.295, 5.4.257 and others. If you are running Linux kernel 4.14.263 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-54266 actively exploited?

No. CVE-2023-54266 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.