CVE-2026-93183

kernel: drm/lima: call drm_mm_init() with a valid allocation range

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · September 17, 2026

Updated · October 20, 2026

Description

A flaw was found in the Linux kernel's drm/lima component. The lima_vm_create() function is called prematurely, before virtual address (VA) start and end ranges are properly initialized. This can lead to the drm_mm_init() function receiving invalid memory allocation ranges, which, if debug options are enabled, triggers a kernel bug and causes a system crash, resulting in a denial of service.

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 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-824 · Access of Uninitialized Pointer