drm/amdkfd: fix QID bit leak in pqm_create_queue()

Summary

CVECVE-2026-74448
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 13:17:49 UTC
Updated2026-08-18 07:16:54 UTC
DescriptionIn 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)

Risk And Classification

EPSS: 0.001680000 probability, percentile 0.065090000 (date 2026-08-17)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 0f88894aa628680747ae27760e5f627f901a435f 8924e2594a15bdbd07f8696770864366d787ab70 git Not specified
CNA Linux Linux affected c0ef1c8ef70bfa3487ea84f794d7a1f0fea0735d 2ff5bb3645c72b3690e70c513a62a86600c4632f git Not specified
CNA Linux Linux affected fddc45026311c05a5355fd34b9dc0a1d7eaef4a2 5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3 git Not specified
CNA Linux Linux affected fddc45026311c05a5355fd34b9dc0a1d7eaef4a2 7c35bf94150d872e670a6632aa819d320279effb git Not specified
CNA Linux Linux affected fddc45026311c05a5355fd34b9dc0a1d7eaef4a2 38b73293f38658a4685ffcea666462024f858ad9 git Not specified
CNA Linux Linux affected 9d61e2b81f5fc90c87975879809346e7c90ea5f9 git Not specified
CNA Linux Linux affected d86ba913bbfd1afafacbfb750001ffc6bfe29da0 git Not specified
CNA Linux Linux affected 6.6.87 6.6.151 semver Not specified
CNA Linux Linux affected 6.12.23 6.12.103 semver Not specified
CNA Linux Linux affected 6.13.11 6.14 semver Not specified
CNA Linux Linux affected 6.14.2 6.15 semver Not specified
CNA Linux Linux affected 6.15 Not specified
CNA Linux Linux unaffected 6.15 semver Not specified
CNA Linux Linux unaffected 6.6.151 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.103 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.44 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.8 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/38b73293f38658a4685ffcea666462024f858ad9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7c35bf94150d872e670a6632aa819d320279effb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8924e2594a15bdbd07f8696770864366d787ab70 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/2ff5bb3645c72b3690e70c513a62a86600c4632f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report