CVE-2026-74448drm/amdkfd: fix QID bit leak in pqm_create_queue()
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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)
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 18, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 0f88894aa628680747ae27760e5f627f901a435f before 8924e2594a15bdbd07f8696770864366d787ab70; from c0ef1c8ef70bfa3487ea84f794d7a1f0fea0735d before 2ff5bb3645c72b3690e70c513a62a86600c4632f; from fddc45026311c05a5355fd34b9dc0a1d7eaef4a2 before 5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3; from fddc45026311c05a5355fd34b9dc0a1d7eaef4a2 before 7c35bf94150d872e670a6632aa819d320279effb; from fddc45026311c05a5355fd34b9dc0a1d7eaef4a2 before 38b73293f38658a4685ffcea666462024f858ad9; 9d61e2b81f5fc90c87975879809346e7c90ea5f9; d86ba913bbfd1afafacbfb750001ffc6bfe29da0; from 6.6.87 before 6.6.151; and 3 more ranges | CNA record |
References
- 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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.