CVE-2026-89820

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89820", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.768Z", "datePublished": "2026-09-16T10:30:52.803Z", "dateUpdated": "2026-10-19T08:53:14.297Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:53:14.297Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: fix dc_lock leak on GPU reset error paths\n\nOn GPU reset, dm_suspend() takes dc_lock and leaves it for dm_resume()\nto drop. If amdgpu_dm_commit_zero_streams() or dm_dmub_hw_init() fails,\nthe function returns with the lock still held. The matching resume path\nis then skipped, so every later dc_lock take hangs.\n\nRelease the cached DC state and unlock before returning the error."}], "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/display/amdgpu_dm/amdgpu_dm.c"], "versions": [{"version": "3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f", "lessThan": "295d2bf42061db490254e748f9344545bb7faf19", "status": "affected", "versionType": "git"}, {"version": "3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f", "lessThan": "dac29cbb405b912742f4f7eda833cec8e7a53780", "status": "affected", "versionType": "git"}, {"version": "3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f", "lessThan": "92a9eebd2a1f892fe482154d83f9f1626bc73d3b", "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/display/amdgpu_dm/amdgpu_dm.c"], "versions": [{"version": "6.15", "status": "affected"}, {"version": "0", "lessThan": "6.15", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.51", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.5", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "6.15", "versionEndExcluding": "6.18.51"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "7.2.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/295d2bf42061db490254e748f9344545bb7faf19"}, {"url": "https://git.kernel.org/stable/c/dac29cbb405b912742f4f7eda833cec8e7a53780"}, {"url": "https://git.kernel.org/stable/c/92a9eebd2a1f892fe482154d83f9f1626bc73d3b"}], "title": "drm/amd/display: fix dc_lock leak on GPU reset error paths", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "295d2bf42061db490254e748f9344545bb7faf19", "status": "affected", "version": "3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f", "versionType": "git"}, {"lessThan": "dac29cbb405b912742f4f7eda833cec8e7a53780", "status": "affected", "version": "3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f", "versionType": "git"}, {"lessThan": "92a9eebd2a1f892fe482154d83f9f1626bc73d3b", "status": "affected", "version": "3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.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": "6.18.*", "status": "unaffected", "version": "6.18.51", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "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/amd/display: fix dc_lock leak on GPU reset error paths\n\nOn GPU reset, dm_suspend() takes dc_lock and leaves it for dm_resume()\nto drop. If amdgpu_dm_commit_zero_streams() or dm_dmub_hw_init() fails,\nthe function returns with the lock still held. The matching resume path\nis then skipped, so every later dc_lock take hangs.\n\nRelease the cached DC state and unlock before returning the error."}], "id": "CVE-2026-89820", "lastModified": "2026-10-19T09:18:25.930", "metrics": {}, "published": "2026-09-16T11:16:47.383", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/295d2bf42061db490254e748f9344545bb7faf19"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/92a9eebd2a1f892fe482154d83f9f1626bc73d3b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dac29cbb405b912742f4f7eda833cec8e7a53780"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: drm/amd/display: fix dc_lock leak on GPU reset error paths", "id": "2535168", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2535168"}, "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-772", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/amd/display: fix dc_lock leak on GPU reset error paths\nOn GPU reset, dm_suspend() takes dc_lock and leaves it for dm_resume()\nto drop. If amdgpu_dm_commit_zero_streams() or dm_dmub_hw_init() fails,\nthe function returns with the lock still held. The matching resume path\nis then skipped, so every later dc_lock take hangs.\nRelease the cached DC state and unlock before returning the error.", "A flaw was found in the Linux kernel's `drm/amd/display` component. During a GPU reset, if certain functions fail after acquiring a `dc_lock`, the lock is not properly released. This can lead to a `dc_lock` leak, causing subsequent attempts to acquire the lock to hang, resulting in a Denial of Service (DoS) for the system."], "name": "CVE-2026-89820", "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:10", "fix_state": "Fix deferred", "package_name": "kernel-rt", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "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"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-09-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-89820\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-89820\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89820.mbox"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f,295d2bf42061db490254e748f9344545bb7faf19)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f,dac29cbb405b912742f7eda833cec8e7a53780)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f,92a9eebd2a1f892fe482154d83f9f1626bc73d3b)"}}], "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": "affected", "versions": {"scheme": "generic", "value": "[6.15,6.15]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.15)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.51,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.5,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "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": "2026-09-17T12:00:20.691389+00:00", "updated": "2026-09-24T04:00:13.040283+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}