CVE-2026-74448

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74448", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.899Z", "datePublished": "2026-08-15T12:26:53.915Z", "dateUpdated": "2026-08-18T06:56:34.583Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-18T06:56:34.583Z"}, "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)"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c"], "versions": [{"version": "0f88894aa628680747ae27760e5f627f901a435f", "lessThan": "8924e2594a15bdbd07f8696770864366d787ab70", "status": "affected", "versionType": "git"}, {"version": "c0ef1c8ef70bfa3487ea84f794d7a1f0fea0735d", "lessThan": "2ff5bb3645c72b3690e70c513a62a86600c4632f", "status": "affected", "versionType": "git"}, {"version": "fddc45026311c05a5355fd34b9dc0a1d7eaef4a2", "lessThan": "5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3", "status": "affected", "versionType": "git"}, {"version": "fddc45026311c05a5355fd34b9dc0a1d7eaef4a2", "lessThan": "7c35bf94150d872e670a6632aa819d320279effb", "status": "affected", "versionType": "git"}, {"version": "fddc45026311c05a5355fd34b9dc0a1d7eaef4a2", "lessThan": "38b73293f38658a4685ffcea666462024f858ad9", "status": "affected", "versionType": "git"}, {"version": "9d61e2b81f5fc90c87975879809346e7c90ea5f9", "status": "affected", "versionType": "git"}, {"version": "d86ba913bbfd1afafacbfb750001ffc6bfe29da0", "status": "affected", "versionType": "git"}, {"version": "6.6.87", "lessThan": "6.6.151", "status": "affected", "versionType": "semver"}, {"version": "6.12.23", "lessThan": "6.12.103", "status": "affected", "versionType": "semver"}, {"version": "6.13.11", "lessThan": "6.14", "status": "affected", "versionType": "semver"}, {"version": "6.14.2", "lessThan": "6.15", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c"], "versions": [{"version": "6.15", "status": "affected"}, {"version": "0", "lessThan": "6.15", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.151", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.103", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.44", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.8", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.87", "versionEndExcluding": "6.6.151"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12.23", "versionEndExcluding": "6.12.103"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "6.18.44"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "7.1.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "7.2"}, {"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"}]}]}], "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"}}}}

{}

{"affected": [{"affectedData": [{"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"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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)"}], "id": "CVE-2026-74448", "lastModified": "2026-08-18T07:16:54.720", "metrics": {}, "published": "2026-08-15T13:17:49.390", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2ff5bb3645c72b3690e70c513a62a86600c4632f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/38b73293f38658a4685ffcea666462024f858ad9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7c35bf94150d872e670a6632aa819d320279effb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8924e2594a15bdbd07f8696770864366d787ab70"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: drm/amdkfd: fix QID bit leak in pqm_create_queue()", "id": "2517082", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2517082"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-911", "details": ["A flaw was found in the Linux kernel's `drm/amdkfd` component. When a process attempts to create its first queue, a failure in memory allocation can cause the `pqm_create_queue()` function to exit prematurely without releasing a reserved Queue ID (QID) bit. This leads to a permanent leak of QID slots. Over time, this resource exhaustion can prevent new queues from being created, resulting in a Denial of Service (DoS) for affected systems."], "name": "CVE-2026-74448", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-74448\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-74448\nhttps://lore.kernel.org/linux-cve-announce/2026081530-CVE-2026-74448-5bd4@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,8924e2594a15bdbd07f8696770864366d787ab70)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,2ff5bb3645c72b3690e70c513a62a86600c4632f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,7c35bf94150d872e670a6632aa819d320279effb)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,38b73293f38658a4685ffcea666462024f858ad9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.6.151)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.12.103)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.18.44)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,7.1.8)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.151,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.103,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.44,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.8,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc6,*)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-15T16:00:07.795074+00:00", "updated": "2026-08-18T05:45:03.302199+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}