CVE-2026-68245

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Since, the caller still dereferences vm->task_info in\namdgpu_vm_get_task_info_vm() after the lock is removed, this causes a\nuse after unlock problem.\n\nRemove the lifetime issue present in amdgpu_vm_get_task_info_pasid()\nthrough removing the amdgpu_vm_get_vm_from_pasid() function from\namdgpu_vm.c and making the relevant code inline to hold the lock while\nit is still in use.\n\n(cherry picked from commit 9d01579f3f868b333acc901815972685989092c7)"}], "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 vulnerable code is reached through the amdgpu DRM device (render node) via command submission causing a GPU VM page fault or a ring timeout; this requires local access to /dev/dri/renderD*, with no network exposure.\nAC:L - The attacker controls both sides of the race: it can generate GPU page faults or job timeouts at will while concurrently closing DRM file descriptors to free the amdgpu_vm/fpriv, and can retry the race arbitrarily many times until it wins.\nPR:L - Only an unprivileged local account with access to the AMD GPU render node is needed; render nodes are world/group accessible by default on desktop, Android and container workloads, and no capability is checked on the CS/fault path.\nUI:N - The attacker's own processes generate the GPU faults and the concurrent VM teardown; no action by any other user is required.\nS:U - The corruption stays within the kernel's own security authority \u2014 the freed amdgpu_vm/amdgpu_task_info are kernel heap objects, with no crossing of a VM or IOMMU boundary.\nC:H - The stale vm pointer is dereferenced after free, reading vm->task_info out of reallocated kernel heap memory, and the resulting task_info contents (process name, pid, tgid) are then printed/exported, allowing disclosure of attacker-groomed or unrelated kernel data.\nI:H - kref_get() is performed on memory that may already be freed and reallocated, writing an increment into another object's fields, and the paired kref_put() can drop a foreign refcount to zero \u2014 a classic use-after-free/refcount-corruption primitive leveraged for arbitrary write and privilege escalation.\nA:H - The use-after-free occurs in a GPU interrupt handler and the reset/timeout path; dereferencing freed memory or corrupting a reused slab object readily oopses or panics the kernel, and it can be retriggered repeatedly."}]}], "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/amdgpu/amdgpu_vm.c"], "versions": [{"version": "b8f67b9ddf4f8fe6dd536590712b5912ad78f99c", "lessThan": "fe16a7e5336ae888751984e30c451fbf7cfa5df7", "status": "affected", "versionType": "git"}, {"version": "b8f67b9ddf4f8fe6dd536590712b5912ad78f99c", "lessThan": "1173190412fb9d12e7efce76734118d9712ff970", "status": "affected", "versionType": "git"}, {"version": "b8f67b9ddf4f8fe6dd536590712b5912ad78f99c", "lessThan": "5d5fb9124a2bba96a7807086d8fe0f7ce810d546", "status": "affected", "versionType": "git"}, {"version": "b8f67b9ddf4f8fe6dd536590712b5912ad78f99c", "lessThan": "04cc4aa3617b0ed67e859f91f09de5d896a46f3a", "status": "affected", "versionType": "git"}, {"version": "aa22d6c58505d239814b5ef8fa7da4ce43e9212b", "status": "affected", "versionType": "git"}, {"version": "251840f22eff35c25de531a3fcb523df94c128c0", "status": "affected", "versionType": "git"}, {"version": "6.1.191", "lessThan": "6.2", "status": "affected", "versionType": "semver"}, {"version": "6.6.160", "lessThan": "6.7", "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/amdgpu/amdgpu_vm.c"], "versions": [{"version": "6.9", "status": "affected"}, {"version": "0", "lessThan": "6.9", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "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": "6.9", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.160"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/fe16a7e5336ae888751984e30c451fbf7cfa5df7"}, {"url": "https://git.kernel.org/stable/c/1173190412fb9d12e7efce76734118d9712ff970"}, {"url": "https://git.kernel.org/stable/c/5d5fb9124a2bba96a7807086d8fe0f7ce810d546"}, {"url": "https://git.kernel.org/stable/c/04cc4aa3617b0ed67e859f91f09de5d896a46f3a"}], "title": "drm/amdgpu: fix lifetime issue of amdgpu_vm_get_task_info_pasid()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-68245", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:46:07.633489Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-362", "description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-19T20:58:57.944Z"}}]}}

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Once xa_unlock_irqrestore is\ncalled and returned, the pointer is no longer under lock and is subject\nto modification. Since, the caller still dereferences vm->task_info in\namdgpu_vm_get_task_info_vm() after the lock is removed, this causes a\nuse after unlock problem.\n\nRemove the lifetime issue present in amdgpu_vm_get_task_info_pasid()\nthrough removing the amdgpu_vm_get_vm_from_pasid() function from\namdgpu_vm.c and making the relevant code inline to hold the lock while\nit is still in use.\n\n(cherry picked from commit 9d01579f3f868b333acc901815972685989092c7)"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.101", "versionStartIncluding": "6.9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.42", "versionStartIncluding": "6.9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.1.6", "versionStartIncluding": "6.9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.2", "versionStartIncluding": "6.9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "6.1.191"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "6.6.160"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:28:14.789Z"}}}, "cveMetadata": {"cveId": "CVE-2026-68245", "state": "PUBLISHED", "dateUpdated": "2026-10-30T12:28:14.789Z", "dateReserved": "2026-07-30T09:28:09.377Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-08-10T12:01:11.501Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "fe16a7e5336ae888751984e30c451fbf7cfa5df7", "status": "affected", "version": "b8f67b9ddf4f8fe6dd536590712b5912ad78f99c", "versionType": "git"}, {"lessThan": "1173190412fb9d12e7efce76734118d9712ff970", "status": "affected", "version": "b8f67b9ddf4f8fe6dd536590712b5912ad78f99c", "versionType": "git"}, {"lessThan": "5d5fb9124a2bba96a7807086d8fe0f7ce810d546", "status": "affected", "version": "b8f67b9ddf4f8fe6dd536590712b5912ad78f99c", "versionType": "git"}, {"lessThan": "04cc4aa3617b0ed67e859f91f09de5d896a46f3a", "status": "affected", "version": "b8f67b9ddf4f8fe6dd536590712b5912ad78f99c", "versionType": "git"}, {"status": "affected", "version": "aa22d6c58505d239814b5ef8fa7da4ce43e9212b", "versionType": "git"}, {"status": "affected", "version": "251840f22eff35c25de531a3fcb523df94c128c0", "versionType": "git"}, {"lessThan": "6.2", "status": "affected", "version": "6.1.191", "versionType": "semver"}, {"lessThan": "6.7", "status": "affected", "version": "6.6.160", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.9"}, {"lessThan": "6.9", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.6", "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/amdgpu: fix lifetime issue of amdgpu_vm_get_task_info_pasid()\n\nThe vm pointer returned from amdgpu_vm_get_vm_from_pasid() is only\nvalid while the lock is still being held. Once xa_unlock_irqrestore is\ncalled and returned, the pointer is no longer under lock and is subject\nto modification. Since, the caller still dereferences vm->task_info in\namdgpu_vm_get_task_info_vm() after the lock is removed, this causes a\nuse after unlock problem.\n\nRemove the lifetime issue present in amdgpu_vm_get_task_info_pasid()\nthrough removing the amdgpu_vm_get_vm_from_pasid() function from\namdgpu_vm.c and making the relevant code inline to hold the lock while\nit is still in use.\n\n(cherry picked from commit 9d01579f3f868b333acc901815972685989092c7)"}], "id": "CVE-2026-68245", "lastModified": "2026-10-30T13:19:42.287", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-68245", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T15:46:07.633489Z", "version": "2.0.3"}}]}, "published": "2026-08-10T13:20:12.960", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/04cc4aa3617b0ed67e859f91f09de5d896a46f3a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1173190412fb9d12e7efce76734118d9712ff970"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5d5fb9124a2bba96a7807086d8fe0f7ce810d546"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fe16a7e5336ae888751984e30c451fbf7cfa5df7"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-362"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: drm/amdgpu: fix lifetime issue of amdgpu_vm_get_task_info_pasid()", "id": "2513430", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513430"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/amdgpu: fix lifetime issue of amdgpu_vm_get_task_info_pasid()\nThe vm pointer returned from amdgpu_vm_get_vm_from_pasid() is only\nvalid while the lock is still being held. Once xa_unlock_irqrestore is\ncalled and returned, the pointer is no longer under lock and is subject\nto modification. Since, the caller still dereferences vm->task_info in\namdgpu_vm_get_task_info_vm() after the lock is removed, this causes a\nuse after unlock problem.\nRemove the lifetime issue present in amdgpu_vm_get_task_info_pasid()\nthrough removing the amdgpu_vm_get_vm_from_pasid() function from\namdgpu_vm.c and making the relevant code inline to hold the lock while\nit is still in use.\n(cherry picked from commit 9d01579f3f868b333acc901815972685989092c7)", "A flaw was found in the `drm/amdgpu` component of the Linux kernel. A use-after-unlock vulnerability exists where a virtual machine (VM) pointer is dereferenced after its protective lock has been released. This allows the pointer to be modified, potentially leading to memory corruption. An attacker could exploit this to cause a denial of service or achieve privilege escalation."], "name": "CVE-2026-68245", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-10T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68245\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68245\nhttps://lore.kernel.org/linux-cve-announce/2026081019-CVE-2026-68245-15a4@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,fe16a7e5336ae888751984e30c451fbf7cfa5df7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,1173190412fb9d12e7efce76734118d9712ff970)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,5d5fb9124a2bba96a7807086d8fe0f7ce810d546)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,04cc4aa3617b0ed67e859f91f09de5d896a46f3a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.12.101)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.18.42)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,7.1.6)"}}], "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": "[6.12.101,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.42,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.6,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc3,*]"}}], "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": "2026-08-10T17:45:04.460531+00:00", "updated": "2026-10-20T11:00:15.216786+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}