What is CVE-2023-54268?

CVE-2023-54268 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 2.6.26 onward and patched in 5.4.244, 5.10.181, 5.15.114 and others. CVE-2023-54268 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-54268?

CVE-2023-54268 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2023-54268?

Yes, CVE-2023-54268 has been patched. Fixed versions include 5.4.244, 5.10.181, 5.15.114 and others. If you are running Linux kernel 2.6.26 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-54268 actively exploited?

CVE-2023-54268 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-54268

In the Linux kernel, the following vulnerability has been resolved: debugobjects: Don't wake up kswapd from fill_pool() syzbot is reporting a lockdep warning in fill_pool() because the allocation from debugobjects is using GFP_ATOMIC, which is (__GFP_HIGH | __GFP_KSWAPD_RECLAIM) and therefore tries to wake up kswapd, which acquires kswapd_wait::lock. Since fill_pool() might be called with arbitrary locks held, fill_pool() should not assume that acquiring kswapd_wait::lock is safe. Use __GFP_HIGH instead and remove __GFP_NORETRY as it is pointless for !__GFP_DIRECT_RECLAIM allocation.

Package Linux Kernel

Published 2025-12-30

Last modified 2026-04-15

Patch available

Yes

Affected versions

Linux kernel versions 2.6.26 and later are affected. Fixed in 5.4.244, 5.10.181, 5.15.114, 6.1.31, 6.3.5, 6.4 and their respective stable series.

Affected from

≥ 2.6.26

Fixed in

✓ 5.4.244 5.4.x ✓ 5.10.181 5.10.x ✓ 5.15.114 5.15.x ✓ 6.1.31 6.1.x ✓ 6.3.5 6.3.x ✓ 6.4

References

The following references provide additional information about CVE-2023-54268 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/4c088d30a72d9b8f9c6ae9362222942e4075cb00
Patch
Kernel patch commit
https://git.kernel.org/stable/c/aee97eec77029270866c704f66cdf2881cbd2fe1
Patch
Kernel patch commit
https://git.kernel.org/stable/c/be646802b3dc408c4dc72a3ac32c3f4a0282414d
Patch

6 patch commits total View all on NVD

Frequently asked questions

What is CVE-2023-54268?

CVE-2023-54268 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 2.6.26 onward and has been patched in 5.4.244, 5.10.181, 5.15.114 and others. CVE-2023-54268 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2023-54268?

Yes — CVE-2023-54268 has been patched. Fixed versions include 5.4.244, 5.10.181, 5.15.114 and others. If you are running Linux kernel 2.6.26 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-54268 actively exploited?

No — CVE-2023-54268 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.