{"schema":"threatline.record/2","record":{"id":"CVE-2026-99095","aliases":[],"summary":"drm/vc4: drain the hangcheck timer and works on V3D unbind","details":"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.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99095","source_modified_at":"2026-10-26T14:52:02.647Z","fetched_at":"2026-10-26T19:10:57.178988Z","product":"Linux","vendor":"Linux","versions":[{"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"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99095","source_modified_at":"2026-10-26T14:52:02.647Z","fetched_at":"2026-10-26T19:10:57.178988Z","product":"Linux","vendor":"Linux","versions":[{"version":"4.5","status":"affected"},{"version":"0","lessThan":"4.5","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"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99095","source_modified_at":"2026-10-26T14:52:02.647Z","fetched_at":"2026-10-26T19:10:57.178988Z","package":{"name":"Linux","ecosystem":null},"version":"17c5fa371de2d5508755cd4cd227cc8e2bb99240","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99095","source_modified_at":"2026-10-26T14:52:02.647Z","fetched_at":"2026-10-26T19:10:57.178988Z","package":{"name":"Linux","ecosystem":null},"version":"94cf5971b1d04c6382437387c4dc3836cc7a1437","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-26T14:52:02.647Z","modified_at":"2026-10-26T14:52:02.647Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-99095","fetched_at":"2026-10-26T19:10:57.178988Z","source_modified_at":"2026-10-26T14:52:02.647Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/17c5fa371de2d5508755cd4cd227cc8e2bb99240"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/a046cd60ff3f4a8c8e672b3b18902682c1f91731"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/e61465d3e0292daebf4dbb34e0add635e2439569"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/ade226dfd28cf2fd1dce143c556d1ee77d953696"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/94cf5971b1d04c6382437387c4dc3836cc7a1437"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-26T14:52:02.647Z","content_hash":"5bf3386e6bfda20d149342858e44312e90ccd8bd7ac81a3232856c6c0608b279"}}