{"id":"CVE-2026-90127","revision":"6770fa59c60f46a8ab22c8e2513ea94f","records":[{"revision":"6770fa59c60f46a8ab22c8e2513ea94f","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90127","aliases":[],"title":"virtio: rtc: time out alarm requests","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.","state":0,"publishedAt":"2026-09-17T16:06:29.219+00:00","modifiedAt":"2026-10-19T08:58:25.555+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/virtio/virtio_rtc_driver.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"9d4f22fd563e0cd02e8448e84d057e7c0132a586\",\n                            \"lessThan\": \"28701b74c22d2a43ddf7aebb6378e60c18323865\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9d4f22fd563e0cd02e8448e84d057e7c0132a586\",\n                            \"lessThan\": \"afbf69d1d691c06d093d7c3f17168ecb608c4977\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9d4f22fd563e0cd02e8448e84d057e7c0132a586\",\n                            \"lessThan\": \"68e00d9212929805b40dcb9166755610f4f4acee\",\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/virtio/virtio_rtc_driver.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.16\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.16\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.52\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\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/28701b74c22d2a43ddf7aebb6378e60c18323865","https://git.kernel.org/stable/c/afbf69d1d691c06d093d7c3f17168ecb608c4977","https://git.kernel.org/stable/c/68e00d9212929805b40dcb9166755610f4f4acee"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90127","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90127","identifiers":["CVE-2026-90127"]},"retained":false,"historicalAffected":[]}],"coverage":[]}