CVE-2026-74448
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)
Affected versions
Fixed in
6.6.151,
6.12.103,
6.18.44,
7.1.8,
7.2-rc6
and their respective stable series.
References
5 totalFrequently asked questions
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What is CVE-2026-74448?
CVE-2026-74448 is a unscored severity Linux kernel vulnerability . CVE-2026-74448 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-74448?
Yes. CVE-2026-74448 has been patched. Fixed versions include 6.6.151, 6.12.103, 6.18.44 and others.
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Is CVE-2026-74448 actively exploited?
No. CVE-2026-74448 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.