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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-74448

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

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 0f88894aa628680747ae27760e5f627f901a435f to < 8924e2594a15bdbd07f8696770864366d787ab70affected
  • c0ef1c8ef70bfa3487ea84f794d7a1f0fea0735d to < 2ff5bb3645c72b3690e70c513a62a86600c4632faffected
  • fddc45026311c05a5355fd34b9dc0a1d7eaef4a2 to < 5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3affected
  • fddc45026311c05a5355fd34b9dc0a1d7eaef4a2 to < 7c35bf94150d872e670a6632aa819d320279effbaffected
  • fddc45026311c05a5355fd34b9dc0a1d7eaef4a2 to < 38b73293f38658a4685ffcea666462024f858ad9affected
  • 9d61e2b81f5fc90c87975879809346e7c90ea5f9affected
  • d86ba913bbfd1afafacbfb750001ffc6bfe29da0affected
  • 6.6.87 to < 6.6.151affected
  • 6.12.23 to < 6.12.103affected
  • 6.13.11 to < 6.14affected
  • 6.14.2 to < 6.15affected

Linux Linux

Default version status: affected

  • 6.15affected
  • 0 to < 6.15unaffected
  • 6.6.151 to ≤ 6.6.*unaffected
  • 6.12.103 to ≤ 6.12.*unaffected
  • 6.18.44 to ≤ 6.18.*unaffected
  • 7.1.8 to ≤ 7.1.*unaffected
  • 7.2 to ≤ *unaffected

References