What is CVE-2023-54317?

CVE-2023-54317 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 4.14.158 onward and patched in 4.14.308, 4.19.276, 5.4.235 and others. CVE-2023-54317 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-54317?

CVE-2023-54317 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2023-54317?

Yes, CVE-2023-54317 has been patched. Fixed versions include 4.14.308, 4.19.276, 5.4.235 and others. If you are running Linux kernel 4.14.158 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-54317 actively exploited?

CVE-2023-54317 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-54317

In the Linux kernel, the following vulnerability has been resolved: dm flakey: don't corrupt the zero page When we need to zero some range on a block device, the function __blkdev_issue_zero_pages submits a write bio with the bio vector pointing to the zero page. If we use dm-flakey with corrupt bio writes option, it will corrupt the content of the zero page which results in crashes of various userspace programs. Glibc assumes that memory returned by mmap is zeroed and it uses it for calloc implementation; if the newly mapped memory is not zeroed, calloc will return non-zeroed memory. Fix this bug by testing if the page is equal to ZERO_PAGE(0) and avoiding the corruption in this case.

Package Linux Kernel

Published 2025-12-30

Last modified 2026-04-15

Patch available

Yes

Affected versions

Linux kernel versions 4.14.158, 4.19.88, 4.9.206, 5.0 and later are affected. Fixed in 4.14.308, 4.19.276, 5.4.235, 5.10.173, 5.15.99, 6.1.16, 6.2.3, 6.3 and their respective stable series.

Affected from

≥ 4.14.158 ≥ 4.19.88 ≥ 4.9.206 ≥ 5.0

Fixed in

✓ 4.14.308 4.14.x ✓ 4.19.276 4.19.x ✓ 5.4.235 5.4.x ✓ 5.10.173 5.10.x ✓ 5.15.99 5.15.x ✓ 6.1.16 6.1.x ✓ 6.2.3 6.2.x ✓ 6.3

References

The following references provide additional information about CVE-2023-54317 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/3c4a56ef7c538d16c1738ba0ccea9e7146105b5a
Patch
Kernel patch commit
https://git.kernel.org/stable/c/63d31617883d64b43b0e2d529f0751f40713ecae
Patch
Kernel patch commit
https://git.kernel.org/stable/c/98e311be44dbe31ad9c42aa067b2359bac451fda
Patch

8 patch commits total View all on NVD

Frequently asked questions

What is CVE-2023-54317?

CVE-2023-54317 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.14.158 onward and has been patched in 4.14.308, 4.19.276, 5.4.235 and others. CVE-2023-54317 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2023-54317?

Yes — CVE-2023-54317 has been patched. Fixed versions include 4.14.308, 4.19.276, 5.4.235 and others. If you are running Linux kernel 4.14.158 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-54317 actively exploited?

No — CVE-2023-54317 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.