{"cve":"CVE-2022-50274","nvd":{"published":"2025-09-15T15:15:38.330","modified":"2026-08-04T10:18:09.687","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: dvbdev: adopts refcnt to avoid UAF\n\ndvb_unregister_device() is known that prone to use-after-free.\nThat is, the cleanup from dvb_unregister_device() releases the dvb_device\neven if there are pointers stored in file->private_data still refer to it.\n\nThis patch adds a reference counter into struct dvb_device and delays its\ndeallocation until no pointer refers to the object.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-416"],"references":["https://git.kernel.org/stable/c/0fc044b2b5e2d05a1fa1fb0d7f270367a7855d79","https://git.kernel.org/stable/c/219b44bf94203bd433aa91b7796475bf656348e5","https://git.kernel.org/stable/c/2abd73433872194bccdf1432a0980e4ec5273c2a","https://git.kernel.org/stable/c/6d18b44bb44e1f4d97dfe0efe92ac0f0984739c2","https://git.kernel.org/stable/c/88a6f8a72d167294c0931c7874941bf37a41b6dd"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:08:41.295252406+00:00"},"epss":{"cve":"CVE-2022-50274","score":0.00164,"percentile":0.05555,"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."]}