CVE-2026-46197
kernel: drm/amdkfd: validate SVM ioctl nattr against buffer size
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 28, 2026
Updated · August 1, 2026
Description
A flaw was found in the Linux kernel. A local attacker could exploit an out-of-bounds buffer access vulnerability in the AMDGPU kernel driver by providing a specially crafted attribute count during SVM ioctl operations. This improper validation could allow the attacker to cause a system crash, leading to a denial of service (DoS).
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-1284 · Improper Validation of Specified Quantity in Input