CVE-2026-63881

drm/amdkfd: fix a vulnerability of integer overflow in kfd debugger

HIGH
7.8
CVSS Score
Published: July 19, 2026 at 02:54 PM UTC
Updated: October 26, 2026 at 08:13 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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)

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.13 ≤ v < 6.18.356.19 ≤ v < 7.0.126.5 ≤ v < 6.6.1436.7 ≤ v < 6.12.936.57.1a70a93fa568b4f05aba548dadb673703eccf5480
Vendor states this is fixed in 4e5f808b454167cc58d7084a407a554d8ddc694d (fixed)
Vendor states this is fixed in 4f9eeedc3d3151f8a226fd676c314a813edda5a1 (fixed)
Vendor states this is fixed in 5cf4a41aa0d74e4c83f82d2ce233b5189ed4b43c (fixed)
Vendor states this is fixed in 93f5534b35a05ef8a0109c1eefa800062fee810a (fixed)
Vendor states this is fixed in de70a80992396ee306ee3a2810ad28aa1608ba9b (fixed)
Vendor states this is fixed in 6.12.93 (unaffected)
Vendor states this is fixed in 6.18.35 (unaffected)
Vendor states this is fixed in 6.5 (unaffected)
Vendor states this is fixed in 6.6.143 (unaffected)
Vendor states this is fixed in 7.0.12 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusANALYZED
CWE
CWE-190

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