---
id: CVE-2026-53144
title: 'drm/amdkfd: fix NULL dereference in get_queue_ids()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/amdkfd: fix NULL dereference in get_queue_ids()

  When usr_queue_id_array is NULL and num_queues is non-zero,
  get_queue_ids() returns NULL. The callers check only IS…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= a70a93fa568b4f05aba548dadb673703eccf5480 <
    62bd09e23a23da70f9aae02748eba3e6bd93095d
  - >-
    Linux >= a70a93fa568b4f05aba548dadb673703eccf5480 <
    daeceb0fe2a19651c58bbfa3d9d515ecb6ca8996
  - >-
    Linux >= a70a93fa568b4f05aba548dadb673703eccf5480 <
    72e259a32084c42816152c346096d2edd4213e23
  - >-
    Linux >= a70a93fa568b4f05aba548dadb673703eccf5480 <
    e1965e8913cfbf17622ca12638e7a07f68ba0848
  - >-
    Linux >= a70a93fa568b4f05aba548dadb673703eccf5480 <
    2bd550b547deabef98bd3b017ff743b7c34d3a6d
  - Linux 6.5
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-06T16:20:53.435249Z'
published: '2026-06-25'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T16:24:04.674Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-53144'
references:
  - url: 'https://git.kernel.org/stable/c/62bd09e23a23da70f9aae02748eba3e6bd93095d'
  - url: 'https://git.kernel.org/stable/c/daeceb0fe2a19651c58bbfa3d9d515ecb6ca8996'
  - url: 'https://git.kernel.org/stable/c/72e259a32084c42816152c346096d2edd4213e23'
  - url: 'https://git.kernel.org/stable/c/e1965e8913cfbf17622ca12638e7a07f68ba0848'
  - url: 'https://git.kernel.org/stable/c/2bd550b547deabef98bd3b017ff743b7c34d3a6d'
tags:
  - cve.org
epss: 0.00122
epssPercentile: 0.01994
ingestedAt: '2026-11-06T16:57:43.278Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

drm/amdkfd: fix NULL dereference in get_queue_ids()

When usr_queue_id_array is NULL and num_queues is non-zero,
get_queue_ids() returns NULL. The callers check only IS_ERR() on the
return value; since IS_ERR(NULL) == false the check passes, and
suspend_queues() calls q_array_invalidate() which immediately
dereferences NULL while iterating num_queues times.

Userspace can trigger this via kfd_ioctl_set_debug_trap() by supplying
num_queues > 0 with a zero queue_array_ptr, causing a kernel panic.

A NULL usr_queue_id_array with num_queues == 0 is a legitimate no-op
(q_array_invalidate never executes, and resume_queues already guards
all queue_ids dereferences behind a NULL check). Return ERR_PTR(-EINVAL)
only when num_queues is non-zero and the pointer is absent; both callers
already propagate IS_ERR() returns correctly to userspace.

(cherry picked from commit f165a82cdf503884bb1797771c61b2fcc72113d4)

## Affected

- `Linux >= a70a93fa568b4f05aba548dadb673703eccf5480 < 62bd09e23a23da70f9aae02748eba3e6bd93095d`
- `Linux >= a70a93fa568b4f05aba548dadb673703eccf5480 < daeceb0fe2a19651c58bbfa3d9d515ecb6ca8996`
- `Linux >= a70a93fa568b4f05aba548dadb673703eccf5480 < 72e259a32084c42816152c346096d2edd4213e23`
- `Linux >= a70a93fa568b4f05aba548dadb673703eccf5480 < e1965e8913cfbf17622ca12638e7a07f68ba0848`
- `Linux >= a70a93fa568b4f05aba548dadb673703eccf5480 < 2bd550b547deabef98bd3b017ff743b7c34d3a6d`
- `Linux 6.5`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.