{"id":"CVE-2026-90127","published":"2026-09-17T17:17:05.080","lastModified":"2026-09-17T17:17:05.080","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio: rtc: time out alarm requests\n\nRTC class operations run with rtc_device.ops_lock held. The virtio RTC\nalarm requests currently wait without a timeout for the device to return\ntheir requestq buffers.\n\nOn surprise removal, virtio-pci marks the virtqueues broken before\nunregistering the virtio device. If an alarm request is waiting when the\ndevice stops responding, viortc_remove() blocks in viortc_class_stop()\nwhile trying to acquire ops_lock. The request cannot complete and device\nremoval hangs until the waiting task is signalled.\n\nUse the same 60-second timeout as clock read requests for alarm reads,\nalarm programming, and alarm interrupt enable requests. The existing\nmessage reference counting keeps a timed-out request alive until a late\nresponse or device teardown.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/28701b74c22d2a43ddf7aebb6378e60c18323865","tags":[]},{"url":"https://git.kernel.org/stable/c/68e00d9212929805b40dcb9166755610f4f4acee","tags":[]},{"url":"https://git.kernel.org/stable/c/afbf69d1d691c06d093d7c3f17168ecb608c4977","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}