{"api_version":"1","generated_at":"2026-08-18T11:35:47+00:00","cve":"CVE-2026-74448","urls":{"html":"https://cve.report/CVE-2026-74448","api":"https://cve.report/api/cve/CVE-2026-74448.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74448","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74448"},"summary":{"title":"drm/amdkfd: fix QID bit leak in pqm_create_queue()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: fix QID bit leak in pqm_create_queue()\n\nWhen MES is enabled and amdgpu_amdkfd_alloc_kernel_mem() fails during\nthe first queue creation for a process, pqm_create_queue() returns\nearly via 'return retval' without going through the err_create_queue\ncleanup label.\n\nThis means clear_bit(*qid, pqm->queue_slot_bitmap) is never called,\nleaving the reserved QID bit permanently set in queue_slot_bitmap.\nOver time this leaks QID slots, potentially exhausting all available\nqueue slots.\n\nFix this by replacing 'return retval' with 'goto err_allocate_pqn'\nso that clear_bit() is always called on the error path without\ntouching the uninitialized pqn pointer.\n\nAILIKFD-813\n\n(cherry picked from commit a107f74c38edbb80d6ab64dcaeeb292c14e9779f)","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 13:17:49","updated_at":"2026-08-18 07:16:54"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/38b73293f38658a4685ffcea666462024f858ad9","name":"https://git.kernel.org/stable/c/38b73293f38658a4685ffcea666462024f858ad9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7c35bf94150d872e670a6632aa819d320279effb","name":"https://git.kernel.org/stable/c/7c35bf94150d872e670a6632aa819d320279effb","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3","name":"https://git.kernel.org/stable/c/5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8924e2594a15bdbd07f8696770864366d787ab70","name":"https://git.kernel.org/stable/c/8924e2594a15bdbd07f8696770864366d787ab70","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2ff5bb3645c72b3690e70c513a62a86600c4632f","name":"https://git.kernel.org/stable/c/2ff5bb3645c72b3690e70c513a62a86600c4632f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74448","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74448","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0f88894aa628680747ae27760e5f627f901a435f 8924e2594a15bdbd07f8696770864366d787ab70 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c0ef1c8ef70bfa3487ea84f794d7a1f0fea0735d 2ff5bb3645c72b3690e70c513a62a86600c4632f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fddc45026311c05a5355fd34b9dc0a1d7eaef4a2 5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fddc45026311c05a5355fd34b9dc0a1d7eaef4a2 7c35bf94150d872e670a6632aa819d320279effb git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fddc45026311c05a5355fd34b9dc0a1d7eaef4a2 38b73293f38658a4685ffcea666462024f858ad9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9d61e2b81f5fc90c87975879809346e7c90ea5f9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d86ba913bbfd1afafacbfb750001ffc6bfe29da0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.6.87 6.6.151 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.12.23 6.12.103 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.13.11 6.14 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.14.2 6.15 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.15","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.15 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.151 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.103 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.44 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.8 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"74448","cve":"CVE-2026-74448","epss":"0.001680000","percentile":"0.065090000","score_date":"2026-08-17","updated_at":"2026-08-18 00:11:46"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"8924e2594a15bdbd07f8696770864366d787ab70","status":"affected","version":"0f88894aa628680747ae27760e5f627f901a435f","versionType":"git"},{"lessThan":"2ff5bb3645c72b3690e70c513a62a86600c4632f","status":"affected","version":"c0ef1c8ef70bfa3487ea84f794d7a1f0fea0735d","versionType":"git"},{"lessThan":"5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3","status":"affected","version":"fddc45026311c05a5355fd34b9dc0a1d7eaef4a2","versionType":"git"},{"lessThan":"7c35bf94150d872e670a6632aa819d320279effb","status":"affected","version":"fddc45026311c05a5355fd34b9dc0a1d7eaef4a2","versionType":"git"},{"lessThan":"38b73293f38658a4685ffcea666462024f858ad9","status":"affected","version":"fddc45026311c05a5355fd34b9dc0a1d7eaef4a2","versionType":"git"},{"status":"affected","version":"9d61e2b81f5fc90c87975879809346e7c90ea5f9","versionType":"git"},{"status":"affected","version":"d86ba913bbfd1afafacbfb750001ffc6bfe29da0","versionType":"git"},{"lessThan":"6.6.151","status":"affected","version":"6.6.87","versionType":"semver"},{"lessThan":"6.12.103","status":"affected","version":"6.12.23","versionType":"semver"},{"lessThan":"6.14","status":"affected","version":"6.13.11","versionType":"semver"},{"lessThan":"6.15","status":"affected","version":"6.14.2","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.15"},{"lessThan":"6.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.151","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.103","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.44","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.8","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.151","versionStartIncluding":"6.6.87","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.103","versionStartIncluding":"6.12.23","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.44","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.8","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14.2","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: fix QID bit leak in pqm_create_queue()\n\nWhen MES is enabled and amdgpu_amdkfd_alloc_kernel_mem() fails during\nthe first queue creation for a process, pqm_create_queue() returns\nearly via 'return retval' without going through the err_create_queue\ncleanup label.\n\nThis means clear_bit(*qid, pqm->queue_slot_bitmap) is never called,\nleaving the reserved QID bit permanently set in queue_slot_bitmap.\nOver time this leaks QID slots, potentially exhausting all available\nqueue slots.\n\nFix this by replacing 'return retval' with 'goto err_allocate_pqn'\nso that clear_bit() is always called on the error path without\ntouching the uninitialized pqn pointer.\n\nAILIKFD-813\n\n(cherry picked from commit a107f74c38edbb80d6ab64dcaeeb292c14e9779f)"}],"providerMetadata":{"dateUpdated":"2026-08-18T06:56:34.583Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/8924e2594a15bdbd07f8696770864366d787ab70"},{"url":"https://git.kernel.org/stable/c/2ff5bb3645c72b3690e70c513a62a86600c4632f"},{"url":"https://git.kernel.org/stable/c/5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3"},{"url":"https://git.kernel.org/stable/c/7c35bf94150d872e670a6632aa819d320279effb"},{"url":"https://git.kernel.org/stable/c/38b73293f38658a4685ffcea666462024f858ad9"}],"title":"drm/amdkfd: fix QID bit leak in pqm_create_queue()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74448","datePublished":"2026-08-15T12:26:53.915Z","dateReserved":"2026-08-15T05:44:03.899Z","dateUpdated":"2026-08-18T06:56:34.583Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 13:17:49","lastModifiedDate":"2026-08-18 07:16:54","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74448","Ordinal":"1","Title":"drm/amdkfd: fix QID bit leak in pqm_create_queue()","CVE":"CVE-2026-74448","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74448","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: fix QID bit leak in pqm_create_queue()\n\nWhen MES is enabled and amdgpu_amdkfd_alloc_kernel_mem() fails during\nthe first queue creation for a process, pqm_create_queue() returns\nearly via 'return retval' without going through the err_create_queue\ncleanup label.\n\nThis means clear_bit(*qid, pqm->queue_slot_bitmap) is never called,\nleaving the reserved QID bit permanently set in queue_slot_bitmap.\nOver time this leaks QID slots, potentially exhausting all available\nqueue slots.\n\nFix this by replacing 'return retval' with 'goto err_allocate_pqn'\nso that clear_bit() is always called on the error path without\ntouching the uninitialized pqn pointer.\n\nAILIKFD-813\n\n(cherry picked from commit a107f74c38edbb80d6ab64dcaeeb292c14e9779f)","Type":"Description","Title":"drm/amdkfd: fix QID bit leak in pqm_create_queue()"}]}}}