{"id":"CVE-2026-99095","published":"2026-10-26T15:16:48.500","lastModified":"2026-10-26T15:16:48.500","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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/17c5fa371de2d5508755cd4cd227cc8e2bb99240","tags":[]},{"url":"https://git.kernel.org/stable/c/94cf5971b1d04c6382437387c4dc3836cc7a1437","tags":[]},{"url":"https://git.kernel.org/stable/c/a046cd60ff3f4a8c8e672b3b18902682c1f91731","tags":[]},{"url":"https://git.kernel.org/stable/c/ade226dfd28cf2fd1dce143c556d1ee77d953696","tags":[]},{"url":"https://git.kernel.org/stable/c/e61465d3e0292daebf4dbb34e0add635e2439569","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}