{"id":"CVE-2026-99095","revision":"fe9d5718f5464f429020800f243bd71f","records":[{"revision":"fe9d5718f5464f429020800f243bd71f","observedAt":"2026-10-26T15:35:30.984+00:00","statement":{"source":"cve-program","id":"CVE-2026-99095","aliases":[],"title":"drm/vc4: drain the hangcheck timer and works on V3D unbind","description":"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.","state":0,"publishedAt":"2026-10-26T14:52:02.647+00:00","modifiedAt":"2026-10-26T14:52:02.647+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/gpu/drm/vc4/vc4_v3d.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"d5b1a78a772f1e31a94f8babfa964152ec5e9aa5\",\n                            \"lessThan\": \"17c5fa371de2d5508755cd4cd227cc8e2bb99240\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d5b1a78a772f1e31a94f8babfa964152ec5e9aa5\",\n                            \"lessThan\": \"a046cd60ff3f4a8c8e672b3b18902682c1f91731\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d5b1a78a772f1e31a94f8babfa964152ec5e9aa5\",\n                            \"lessThan\": \"e61465d3e0292daebf4dbb34e0add635e2439569\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d5b1a78a772f1e31a94f8babfa964152ec5e9aa5\",\n                            \"lessThan\": \"ade226dfd28cf2fd1dce143c556d1ee77d953696\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d5b1a78a772f1e31a94f8babfa964152ec5e9aa5\",\n                            \"lessThan\": \"94cf5971b1d04c6382437387c4dc3836cc7a1437\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/gpu/drm/vc4/vc4_v3d.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.5\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.5\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.160\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.113\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.57\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.11\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/17c5fa371de2d5508755cd4cd227cc8e2bb99240","https://git.kernel.org/stable/c/a046cd60ff3f4a8c8e672b3b18902682c1f91731","https://git.kernel.org/stable/c/e61465d3e0292daebf4dbb34e0add635e2439569","https://git.kernel.org/stable/c/ade226dfd28cf2fd1dce143c556d1ee77d953696","https://git.kernel.org/stable/c/94cf5971b1d04c6382437387c4dc3836cc7a1437"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-99095","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-99095","identifiers":["CVE-2026-99095"]},"retained":false,"historicalAffected":[]}],"coverage":[]}