{"cve":"CVE-2022-49229","nvd":{"published":"2025-02-26T07:00:59.943","modified":"2026-06-17T05:17:26.960","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nptp: unregister virtual clocks when unregistering physical clock.\n\nWhen unregistering a physical clock which has some virtual clocks,\nunregister the virtual clocks with it.\n\nThis fixes the following oops, which can be triggered by unloading\na driver providing a PTP clock when it has enabled virtual clocks:\n\nBUG: unable to handle page fault for address: ffffffffc04fc4d8\nOops: 0000 [#1] PREEMPT SMP NOPTI\nRIP: 0010:ptp_vclock_read+0x31/0xb0\nCall Trace:\n timecounter_read+0xf/0x50\n ptp_vclock_refresh+0x2c/0x50\n ? ptp_clock_release+0x40/0x40\n ptp_aux_kworker+0x17/0x30\n kthread_worker_fn+0x9b/0x240\n ? kthread_should_park+0x30/0x30\n kthread+0xe2/0x110\n ? kthread_complete_and_exit+0x20/0x20\n ret_from_fork+0x22/0x30","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":[],"references":["https://git.kernel.org/stable/c/9c796a57cbb5daf124a665689f0b2bc9262e0ced","https://git.kernel.org/stable/c/b2dea2a696d09163da4cd33cb598ce1f73e86597","https://git.kernel.org/stable/c/bfcbb76b0f595ea9ede9f7a218086fef85242f10","https://git.kernel.org/stable/c/c49eafe6249f844c26f9866886cc6719d81762df"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:59:48.811064707+00:00"},"epss":{"cve":"CVE-2022-49229","score":0.00261,"percentile":0.17914,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}