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CVE-2026-74448

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

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)
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 0f88894aa628680747ae27760e5f627f901a435f
Version < 8924e2594a15bdbd07f8696770864366d787ab70
Status affected
Version c0ef1c8ef70bfa3487ea84f794d7a1f0fea0735d
Version < 2ff5bb3645c72b3690e70c513a62a86600c4632f
Status affected
Version fddc45026311c05a5355fd34b9dc0a1d7eaef4a2
Version < 5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3
Status affected
Version fddc45026311c05a5355fd34b9dc0a1d7eaef4a2
Version < 7c35bf94150d872e670a6632aa819d320279effb
Status affected
Version fddc45026311c05a5355fd34b9dc0a1d7eaef4a2
Version < 38b73293f38658a4685ffcea666462024f858ad9
Status affected
Version 9d61e2b81f5fc90c87975879809346e7c90ea5f9
Status affected
Version d86ba913bbfd1afafacbfb750001ffc6bfe29da0
Status affected
Version 6.6.87
Version < 6.6.151
Status affected
Version 6.12.23
Version < 6.12.103
Status affected
Version 6.13.11
Version < 6.14
Status affected
Version 6.14.2
Version < 6.15
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.15
Status affected
Version 0
Version < 6.15
Status unaffected
Version <= 6.6.*
Version 6.6.151
Status unaffected
Version <= 6.12.*
Version 6.12.103
Status unaffected
Version <= 6.18.*
Version 6.18.44
Status unaffected
Version <= 7.1.*
Version 7.1.8
Status unaffected
Version <= *
Version 7.2
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.065
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/8924e2594a15bdbd07f8696770864366d787ab70
https://git.kernel.org/stable/c/2ff5bb3645c72b3690e70c513a62a86600c4632f
https://git.kernel.org/stable/c/5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3
https://git.kernel.org/stable/c/7c35bf94150d872e670a6632aa819d320279effb
https://git.kernel.org/stable/c/38b73293f38658a4685ffcea666462024f858ad9