CVE-2026-63881
kernel: drm/amdkfd: fix a vulnerability of integer overflow in kfd debugger
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · July 19, 2026
Updated · August 1, 2026
Description
A flaw was found in the Linux kernel's AMD KFD (Kernel Fusion Driver) debugger component. The get_queue_ids() function, responsible for handling queue identifiers, contains an integer overflow vulnerability. This occurs when calculating the size of an array, where a malicious local user could provide a large number of queues, causing the size calculation to wrap around on 32-bit systems. This could lead to a heap buffer overflow, potentially resulting in a denial of service or, in certain scenarios, privilege escalation.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-787 · Out-of-bounds Write