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
Linux kernel versions
6.6.87,
6.12.23,
6.13.11,
6.14.2,
6.15
and later are affected. Fixed in
6.6.151,
6.12.103,
6.18.44,
7.1.8,
7.2
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 . It affects Linux kernel versions from 6.6.87 onward and has been patched in 6.6.151, 6.12.103, 6.18.44 and others. 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. If you are running Linux kernel 6.6.87 or later up to the fix versions, apply the relevant patch for your kernel branch.
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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.