What is CVE-2026-63881?

CVE-2026-63881 is a unscored severity Linux kernel vulnerability. CVE-2026-63881 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-63881?

CVE-2026-63881 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2026-63881?

Yes, CVE-2026-63881 has been patched. Fixed versions include 6.6.143, 6.12.93, 6.18.35 and others.

Is CVE-2026-63881 actively exploited?

CVE-2026-63881 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-63881

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix a vulnerability of integer overflow in kfd debugger get_queue_ids() computes array_size = num_queues * sizeof(uint32_t), which could overflow on 32-bit size_t build. using array_size() instead, it saturates to SIZE_MAX on overflow. (cherry picked from commit 2d57a0475f085c08b49312dfd8edcb461845f285)

Package Linux Kernel

Published 2026-07-19

Last modified 2026-07-19

Patch available

Yes

Affected versions

Fixed in 6.6.143, 6.12.93, 6.18.35, 7.0.12, 7.1 and their respective stable series.

Fixed in

✓ 6.6.143 6.6.x ✓ 6.12.93 6.12.x ✓ 6.18.35 6.18.x ✓ 7.0.12 7.0.x ✓ 7.1

References

5 total

Frequently asked questions

What is CVE-2026-63881?

CVE-2026-63881 is a unscored severity Linux kernel vulnerability . CVE-2026-63881 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2026-63881?

Yes — CVE-2026-63881 has been patched. Fixed versions include 6.6.143, 6.12.93, 6.18.35 and others.
Is CVE-2026-63881 actively exploited?

No — CVE-2026-63881 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.