CVE-2026-99149
kernel: kernel: amdgpu: Denial of Service via resource leak in amdgpu_gem_userptr_ioctl
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 28, 2026
Updated · October 30, 2026
Description
A flaw was found in the AMDGPU graphics driver within the Linux kernel. When memory allocation fails during user pointer memory validation in the amdgpu_gem_userptr_ioctl function, the driver immediately returns an error and bypasses required cleanup routines. This issue causes Graphics Execution Manager (GEM) objects and related tracking references to remain allocated in memory. A local user could trigger this failure to repeatedly leak kernel resources, potentially leading to a Denial of Service (DoS) through memory exhaustion.
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 · 2.5CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
CWE-772 · Missing Release of Resource after Effective Lifetime