CVE-2026-99095

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-99095", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.390Z", "datePublished": "2026-10-26T14:52:02.647Z", "dateUpdated": "2026-10-30T12:41:42.869Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:41:42.869Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vc4: drain the hangcheck timer and works on V3D unbind\n\nNothing stops the hangcheck timer that submitted jobs arm, or the\njob_done_work that the render-done interrupt queues, at teardown:\nvc4_irq_disable() cancels only overflow_mem_work, and vc4_gem_destroy()\nruns from the drm-managed release, after vc4_v3d_unbind() has already\nuninstalled the V3D interrupt and cleared vc4->v3d. A timer still armed\nby then reads V3D registers through the NULL vc4->v3d pointer, and the\nlate callbacks run on the vc4_dev embedding them after it has been\nfreed.\n\nDrain them in vc4_v3d_unbind(): shut the timer down and cancel\nreset_work before the interrupt is taken down, because its\nvc4_irq_reset() re-enables it, then flush job_done_work so that\ncompletions queued at teardown still release their jobs.\n\nThis issue was found by an in-house static analysis tool."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/vc4/vc4_v3d.c"], "versions": [{"version": "d5b1a78a772f1e31a94f8babfa964152ec5e9aa5", "lessThan": "839eebfc95f8530feaa99677274912ac09b5820b", "status": "affected", "versionType": "git"}, {"version": "d5b1a78a772f1e31a94f8babfa964152ec5e9aa5", "lessThan": "a1e7c7789aef551eea85de2f63989753c4fe9df6", "status": "affected", "versionType": "git"}, {"version": "d5b1a78a772f1e31a94f8babfa964152ec5e9aa5", "lessThan": "17c5fa371de2d5508755cd4cd227cc8e2bb99240", "status": "affected", "versionType": "git"}, {"version": "d5b1a78a772f1e31a94f8babfa964152ec5e9aa5", "lessThan": "a046cd60ff3f4a8c8e672b3b18902682c1f91731", "status": "affected", "versionType": "git"}, {"version": "d5b1a78a772f1e31a94f8babfa964152ec5e9aa5", "lessThan": "e61465d3e0292daebf4dbb34e0add635e2439569", "status": "affected", "versionType": "git"}, {"version": "d5b1a78a772f1e31a94f8babfa964152ec5e9aa5", "lessThan": "ade226dfd28cf2fd1dce143c556d1ee77d953696", "status": "affected", "versionType": "git"}, {"version": "d5b1a78a772f1e31a94f8babfa964152ec5e9aa5", "lessThan": "94cf5971b1d04c6382437387c4dc3836cc7a1437", "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/vc4/vc4_v3d.c"], "versions": [{"version": "4.5", "status": "affected"}, {"version": "0", "lessThan": "4.5", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.224", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.113", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.57", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.11", "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": "4.5", "versionEndExcluding": "5.15.224"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "6.12.113"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "6.18.57"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "7.2.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/839eebfc95f8530feaa99677274912ac09b5820b"}, {"url": "https://git.kernel.org/stable/c/a1e7c7789aef551eea85de2f63989753c4fe9df6"}, {"url": "https://git.kernel.org/stable/c/17c5fa371de2d5508755cd4cd227cc8e2bb99240"}, {"url": "https://git.kernel.org/stable/c/a046cd60ff3f4a8c8e672b3b18902682c1f91731"}, {"url": "https://git.kernel.org/stable/c/e61465d3e0292daebf4dbb34e0add635e2439569"}, {"url": "https://git.kernel.org/stable/c/ade226dfd28cf2fd1dce143c556d1ee77d953696"}, {"url": "https://git.kernel.org/stable/c/94cf5971b1d04c6382437387c4dc3836cc7a1437"}], "title": "drm/vc4: drain the hangcheck timer and works on V3D unbind", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/vc4/vc4_v3d.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "839eebfc95f8530feaa99677274912ac09b5820b", "status": "affected", "version": "d5b1a78a772f1e31a94f8babfa964152ec5e9aa5", "versionType": "git"}, {"lessThan": "a1e7c7789aef551eea85de2f63989753c4fe9df6", "status": "affected", "version": "d5b1a78a772f1e31a94f8babfa964152ec5e9aa5", "versionType": "git"}, {"lessThan": "17c5fa371de2d5508755cd4cd227cc8e2bb99240", "status": "affected", "version": "d5b1a78a772f1e31a94f8babfa964152ec5e9aa5", "versionType": "git"}, {"lessThan": "a046cd60ff3f4a8c8e672b3b18902682c1f91731", "status": "affected", "version": "d5b1a78a772f1e31a94f8babfa964152ec5e9aa5", "versionType": "git"}, {"lessThan": "e61465d3e0292daebf4dbb34e0add635e2439569", "status": "affected", "version": "d5b1a78a772f1e31a94f8babfa964152ec5e9aa5", "versionType": "git"}, {"lessThan": "ade226dfd28cf2fd1dce143c556d1ee77d953696", "status": "affected", "version": "d5b1a78a772f1e31a94f8babfa964152ec5e9aa5", "versionType": "git"}, {"lessThan": "94cf5971b1d04c6382437387c4dc3836cc7a1437", "status": "affected", "version": "d5b1a78a772f1e31a94f8babfa964152ec5e9aa5", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/vc4/vc4_v3d.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.5"}, {"lessThan": "4.5", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.224", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.113", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.57", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.11", "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/vc4: drain the hangcheck timer and works on V3D unbind\n\nNothing stops the hangcheck timer that submitted jobs arm, or the\njob_done_work that the render-done interrupt queues, at teardown:\nvc4_irq_disable() cancels only overflow_mem_work, and vc4_gem_destroy()\nruns from the drm-managed release, after vc4_v3d_unbind() has already\nuninstalled the V3D interrupt and cleared vc4->v3d. A timer still armed\nby then reads V3D registers through the NULL vc4->v3d pointer, and the\nlate callbacks run on the vc4_dev embedding them after it has been\nfreed.\n\nDrain them in vc4_v3d_unbind(): shut the timer down and cancel\nreset_work before the interrupt is taken down, because its\nvc4_irq_reset() re-enables it, then flush job_done_work so that\ncompletions queued at teardown still release their jobs.\n\nThis issue was found by an in-house static analysis tool."}], "id": "CVE-2026-99095", "lastModified": "2026-10-30T13:21:44.940", "metrics": {}, "published": "2026-10-26T15:16:48.500", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/17c5fa371de2d5508755cd4cd227cc8e2bb99240"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/839eebfc95f8530feaa99677274912ac09b5820b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/94cf5971b1d04c6382437387c4dc3836cc7a1437"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a046cd60ff3f4a8c8e672b3b18902682c1f91731"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a1e7c7789aef551eea85de2f63989753c4fe9df6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ade226dfd28cf2fd1dce143c556d1ee77d953696"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e61465d3e0292daebf4dbb34e0add635e2439569"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: drm/vc4: drain the hangcheck timer and works on V3D unbind", "id": "2560832", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2560832"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/vc4: drain the hangcheck timer and works on V3D unbind\nNothing stops the hangcheck timer that submitted jobs arm, or the\njob_done_work that the render-done interrupt queues, at teardown:\nvc4_irq_disable() cancels only overflow_mem_work, and vc4_gem_destroy()\nruns from the drm-managed release, after vc4_v3d_unbind() has already\nuninstalled the V3D interrupt and cleared vc4->v3d. A timer still armed\nby then reads V3D registers through the NULL vc4->v3d pointer, and the\nlate callbacks run on the vc4_dev embedding them after it has been\nfreed.\nDrain them in vc4_v3d_unbind(): shut the timer down and cancel\nreset_work before the interrupt is taken down, because its\nvc4_irq_reset() re-enables it, then flush job_done_work so that\ncompletions queued at teardown still release their jobs.\nThis issue was found by an in-house static analysis tool.", "A flaw was found in the Linux kernel's VideoCore IV (vc4) graphics driver. This vulnerability can result in a Denial of Service (DoS) due to improper cleanup during device teardown. Active timers and queued background tasks are not stopped before device memory structures are released. A local user could exploit this condition during device unbinding to trigger invalid memory access, causing the system to crash."], "name": "CVE-2026-99095", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "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": "Not affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-99095\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-99095\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-99095.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d5b1a78a772f1e31a94f8babfa964152ec5e9aa5,17c5fa371de2d5508755cd4cd227cc8e2bb99240)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d5b1a78a772f1e31a94f8babfa964152ec5e9aa5,a046cd60ff3f4a8c8e672b3b18902682c1f91731)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d5b1a78a772f1e31a94f8babfa964152ec5e9aa5,e61465d3e0292daebf4dbb34e0add635e2439569)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d5b1a78a772f1e31a94f8babfa964152ec5e9aa5,ade226dfd28cf2fd1dce143c556d1ee77d953696)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d5b1a78a772f1e31a94f8babfa964152ec5e9aa5,94cf5971b1d04c6382437387c4dc3836cc7a1437)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.5"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.5)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.160,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.113,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.57,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.11,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d5b1a78a772f1e31a94f8babfa964152ec5e9aa5,17c5fa371de2d5508755cd4cd227cc8e2bb99240)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d5b1a78a772f1e31a94f8babfa964152ec5e9aa5,a046cd60ff3f4a8c8e672b3b18902682c1f91731)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d5b1a78a772f1e31a94f8babfa964152ec5e9aa5,e61465d3e0292daebf4dbb34e0add635e2439569)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d5b1a78a772f1e31a94f8babfa964152ec5e9aa5,ade226dfd28cf2fd1dce143c556d1ee77d953696)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d5b1a78a772f1e31a94f8babfa964152ec5e9aa5,94cf5971b1d04c6382437387c4dc3836cc7a1437)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"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": "4.5"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.5)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.160,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.113,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.57,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.11,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-26T16:45:14.917951+00:00", "updated": "2026-10-29T15:00:22.024102+00:00", "vendors": ["linux", "linux$PRODUCT$linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-416", "CWE-476"]}