What is CVE-2023-54174?

CVE-2023-54174 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 6.2 onward and patched in 6.2.3 and 6.3. CVE-2023-54174 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-54174?

CVE-2023-54174 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2023-54174?

Yes, CVE-2023-54174 has been patched. Fixed versions include 6.2.3 and 6.3. If you are running Linux kernel 6.2 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-54174 actively exploited?

CVE-2023-54174 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-54174

In the Linux kernel, the following vulnerability has been resolved: vfio: Fix NULL pointer dereference caused by uninitialized group->iommufd group->iommufd is not initialized for the iommufd_ctx_put() [20018.331541] BUG: kernel NULL pointer dereference, address: 0000000000000000 [20018.377508] RIP: 0010:iommufd_ctx_put+0x5/0x10 [iommufd] ... [20018.476483] Call Trace: [20018.479214] <TASK> [20018.481555] vfio_group_fops_unl_ioctl+0x506/0x690 [vfio] [20018.487586] __x64_sys_ioctl+0x6a/0xb0 [20018.491773] ? trace_hardirqs_on+0xc5/0xe0 [20018.496347] do_syscall_64+0x67/0x90 [20018.500340] entry_SYSCALL_64_after_hwframe+0x4b/0xb5

Package Linux Kernel

Published 2025-12-30

Last modified 2026-04-15

Patch available

Yes

Affected versions

Linux kernel versions 6.2 and later are affected. Fixed in 6.2.3, 6.3 and their respective stable series.

Affected from

≥ 6.2

Fixed in

✓ 6.2.3 6.2.x ✓ 6.3

References

The following references provide additional information about CVE-2023-54174 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/8f24eef598ce7cce0bbefe0ec642bcc031d0f528
Patch
Kernel patch commit
https://git.kernel.org/stable/c/d649c34cb916b015fdcb487e51409fcc5caeca8d
Patch

Frequently asked questions

What is CVE-2023-54174?

CVE-2023-54174 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.2 onward and has been patched in 6.2.3 and 6.3. CVE-2023-54174 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2023-54174?

Yes — CVE-2023-54174 has been patched. Fixed versions include 6.2.3 and 6.3. If you are running Linux kernel 6.2 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-54174 actively exploited?

No — CVE-2023-54174 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.