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Vulnerabilities
Vulnerability

CVE-2026-74448

Reference data from vuln.mlab.sh, coverage from our own index.

CVSS
5.5 Medium
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
0.17%
Risk score
3.5
Published
2026-08-15
Status
Published

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix QID bit leak in pqm_create_queue() When MES is enabled and amdgpu_amdkfd_alloc_kernel_mem() fails during the first queue creation for a process, pqm_create_queue() returns early via 'return retval' without going through the err_create_queue cleanup label. This means clear_bit(*qid, pqm->queue_slot_bitmap) is never called, leaving the reserved QID bit permanently set in queue_slot_bitmap. Over time this leaks QID slots, potentially exhausting all available queue slots. Fix this by replacing 'return retval' with 'goto err_allocate_pqn' so that clear_bit() is always called on the error path without touching the uninitialized pqn pointer. AILIKFD-813 (cherry picked from commit a107f74c38edbb80d6ab64dcaeeb292c14e9779f) A flaw was found in the Linux kernel's `drm/amdkfd` component. When a process attempts to create its first queue, a failure in memory allocation can cause the `pqm_create_queue()` function to exit prematurely without releasing a reserved Queue ID (QID) bit. This leads to a permanent leak of QID slots. Over time, this resource exhaustion can prevent new queues from being created, resulting in a Denial of Service (DoS) for affected systems.

Weaknesses

CWE-911

Coverage 1

Advisories and references