{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-97429", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-24T14:53:16.868Z", "datePublished": "2026-09-24T16:03:42.269Z", "dateUpdated": "2026-09-25T12:44:05.565Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-25T12:44:05.565Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: fix UAF race in destroy_queue_cpsch\n\nwait_on_destroy_queue() drops locks to wait for queue resume, allowing\na concurrent destroy to free the queue. Use is_being_destroyed flag to\nserialize destruction."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The UAF is reached from kfd_ioctl_destroy_queue() via AMDKFD_IOC_DESTROY_QUEUE on /dev/kfd, which calls pqm_destroy_queue() then destroy_queue_cpsch() and wait_on_destroy_queue(); the trigger is that local ioctl, not a remote protocol message.\nAC:L - After kfd_ioctl_runtime_enable() and kfd_ioctl_set_debug_trap() (KFD_IOC_DBG_TRAP_ENABLE then KFD_IOC_DBG_TRAP_SUSPEND_QUEUES) set debug_trap_enabled and is_suspended, wait_on_destroy_queue() drops p->mutex; a sibling thread then issues a second AMDKFD_IOC_DESTROY_QUEUE (or KFD_IOC_DBG_TRAP_DISABLE then destroy) and frees the same struct queue while the first sleeps.\nPR:L - kfd_open() has no capable() check, and AMDKFD_IOC_CREATE_QUEUE, AMDKFD_IOC_DESTROY_QUEUE, AMDKFD_IOC_RUNTIME_ENABLE and AMDKFD_IOC_DBG_TRAP are registered with flags 0; kfd_ioctl_set_debug_trap() skips the ptrace check when target==p, so an unprivileged /dev/kfd (render-group) user can trap, suspend and destroy their own queues.\nUI:N - The attacker opens their own /dev/kfd fd, enables debug trap on their own pid via kfd_ioctl_set_debug_trap(), suspends the queue with KFD_IOC_DBG_TRAP_SUSPEND_QUEUES, and issues the concurrent AMDKFD_IOC_DESTROY_QUEUE ioctls; no other user must mount, open, or interact.\nS:U - The use-after-free of struct queue in wait_on_destroy_queue()/destroy_queue_cpsch() and the later uninit_queue() in pqm_destroy_queue() stays in the host kernel that runs amdkfd; it is not a KVM/Xen guest-to-host escape or an IOMMU/DMA isolation bypass.\nC:H - While wait_on_destroy_queue() still evaluates q->properties.is_suspended, the racing pqm_destroy_queue() path kfree()s the same struct queue via uninit_queue() and its MQD via mqd_mgr->free_mqd(); that slab UAF of kernel queue/MQD objects is an arbitrary-read primitive.\nI:H - The overlapping destroy_queue_cpsch() then pqm_destroy_queue() path list_del()s q->list and kfree()s both the queue and process_queue_node while the waiter still holds those pointers, so the slab can be sprayed into an arbitrary kernel write or control-flow hijack.\nA:H - Using the freed struct queue in wait_on_destroy_queue() or the rest of destroy_queue_cpsch() (list_del(&q->list), free_mqd, uninit_queue) oopses the kernel; a use-after-free is scored High for availability even when not fully exploited."}]}], "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_device_queue_manager.c"], "versions": [{"version": "a70a93fa568b4f05aba548dadb673703eccf5480", "lessThan": "41144829f4645c2bd4cb501d34d253858f750c0a", "status": "affected", "versionType": "git"}, {"version": "a70a93fa568b4f05aba548dadb673703eccf5480", "lessThan": "d98c8032c29944e1e572e1f49a0613d364fece0f", "status": "affected", "versionType": "git"}, {"version": "a70a93fa568b4f05aba548dadb673703eccf5480", "lessThan": "ac081deaf16a639ea7dff2f285fe421a33c1ade0", "status": "affected", "versionType": "git"}]}, {"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_device_queue_manager.c"], "versions": [{"version": "6.5", "status": "affected"}, {"version": "0", "lessThan": "6.5", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.111", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.53", "lessThanOrEqual": "6.18.*", "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": "6.5", "versionEndExcluding": "6.12.111"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.18.53"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/41144829f4645c2bd4cb501d34d253858f750c0a"}, {"url": "https://git.kernel.org/stable/c/d98c8032c29944e1e572e1f49a0613d364fece0f"}, {"url": "https://git.kernel.org/stable/c/ac081deaf16a639ea7dff2f285fe421a33c1ade0"}], "title": "drm/amdkfd: fix UAF race in destroy_queue_cpsch", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "41144829f4645c2bd4cb501d34d253858f750c0a", "status": "affected", "version": "a70a93fa568b4f05aba548dadb673703eccf5480", "versionType": "git"}, {"lessThan": "d98c8032c29944e1e572e1f49a0613d364fece0f", "status": "affected", "version": "a70a93fa568b4f05aba548dadb673703eccf5480", "versionType": "git"}, {"lessThan": "ac081deaf16a639ea7dff2f285fe421a33c1ade0", "status": "affected", "version": "a70a93fa568b4f05aba548dadb673703eccf5480", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.5"}, {"lessThan": "6.5", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.111", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.53", "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 UAF race in destroy_queue_cpsch\n\nwait_on_destroy_queue() drops locks to wait for queue resume, allowing\na concurrent destroy to free the queue. Use is_being_destroyed flag to\nserialize destruction."}], "id": "CVE-2026-97429", "lastModified": "2026-09-25T13:17:26.507", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-09-24T17:17:20.907", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/41144829f4645c2bd4cb501d34d253858f750c0a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ac081deaf16a639ea7dff2f285fe421a33c1ade0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d98c8032c29944e1e572e1f49a0613d364fece0f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,41144829f4645c2bd4cb501d34d253858f750c0a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,d98c8032c29944e1e572e1f49a0613d364fece0f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,ac081deaf16a639ea7dff2f285fe421a33c1ade0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.12.111)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.18.53)"}}], "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": "generic", "value": "[6.12.111,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.53,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2,*]"}}], "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": "2026-09-25T01:00:11.913264+00:00", "updated": "2026-09-25T09:45:17.463417+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-416", "CWE-362"]}