CVE-2026-99095drm/vc4: drain the hangcheck timer and works on V3D unbind
- —Not scoredno CVSS score yet
- 0.17%Exploitation in 30 daysEPSS · top 94% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: drm/vc4: drain the hangcheck timer and works on V3D unbind Nothing stops the hangcheck timer that submitted jobs arm, or the job_done_work that the render-done interrupt queues, at teardown: vc4_irq_disable() cancels only overflow_mem_work, and vc4_gem_destroy() runs from the drm-managed release, after vc4_v3d_unbind() has already uninstalled the V3D interrupt and cleared vc4->v3d. A timer still armed by then reads V3D registers through the NULL vc4->v3d pointer, and the late callbacks run on the vc4_dev embedding them after it has been freed. Drain them in vc4_v3d_unbind(): shut the timer down and cancel reset_work before the interrupt is taken down, because its vc4_irq_reset() re-enables it, then flush job_done_work so that completions queued at teardown still release their jobs. This issue was found by an in-house static analysis tool.
Timeline
ID reserved
By Linux
- 31 days later
· 31 days later
Published
- 4 days later
· 4 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.17% · top 94% of all CVEs (15 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected d5b1a78a772f1e31a94f8babfa964152ec5e9aa5 – < 839eebfc95f8530feaa99677274912ac09b5820b
- affected d5b1a78a772f1e31a94f8babfa964152ec5e9aa5 – < a1e7c7789aef551eea85de2f63989753c4fe9df6
- affected d5b1a78a772f1e31a94f8babfa964152ec5e9aa5 – < 17c5fa371de2d5508755cd4cd227cc8e2bb99240
- affected d5b1a78a772f1e31a94f8babfa964152ec5e9aa5 – < a046cd60ff3f4a8c8e672b3b18902682c1f91731
- affected d5b1a78a772f1e31a94f8babfa964152ec5e9aa5 – < e61465d3e0292daebf4dbb34e0add635e2439569
- affected d5b1a78a772f1e31a94f8babfa964152ec5e9aa5 – < ade226dfd28cf2fd1dce143c556d1ee77d953696
- affected d5b1a78a772f1e31a94f8babfa964152ec5e9aa5 – < 94cf5971b1d04c6382437387c4dc3836cc7a1437
- affected 4.5
- unaffected < 4.5
- unaffected 5.15.224 – ≤ 5.15.*
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.113 – ≤ 6.12.*
- unaffected 6.18.57 – ≤ 6.18.*
- unaffected 7.2.11 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References7
- https://git.kernel.org/stable/c/839eebfc95f8530feaa99677274912ac09b5820b (opens in a new tab)
- https://git.kernel.org/stable/c/a1e7c7789aef551eea85de2f63989753c4fe9df6 (opens in a new tab)
- https://git.kernel.org/stable/c/17c5fa371de2d5508755cd4cd227cc8e2bb99240 (opens in a new tab)
- https://git.kernel.org/stable/c/a046cd60ff3f4a8c8e672b3b18902682c1f91731 (opens in a new tab)
- https://git.kernel.org/stable/c/e61465d3e0292daebf4dbb34e0add635e2439569 (opens in a new tab)
- https://git.kernel.org/stable/c/ade226dfd28cf2fd1dce143c556d1ee77d953696 (opens in a new tab)
- https://git.kernel.org/stable/c/94cf5971b1d04c6382437387c4dc3836cc7a1437 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-109901 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2026-99095)Record last updated .