{"cve":"CVE-2022-48771","nvd":{"published":"2024-06-20T12:15:15.043","modified":"2026-08-04T10:17:20.147","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: Fix stale file descriptors on failed usercopy\n\nA failing usercopy of the fence_rep object will lead to a stale entry in\nthe file descriptor table as put_unused_fd() won't release it. This\nenables userland to refer to a dangling 'file' object through that still\nvalid file descriptor, leading to all kinds of use-after-free\nexploitation scenarios.\n\nFix this by deferring the call to fd_install() until after the usercopy\nhas succeeded.","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/0008a0c78fc33a84e2212a7c04e6b21a36ca6f4d","https://git.kernel.org/stable/c/1d833b27fb708d6fdf5de9f6b3a8be4bd4321565","https://git.kernel.org/stable/c/6066977961fc6f437bc064f628cf9b0e4571c56c","https://git.kernel.org/stable/c/84b1259fe36ae0915f3d6ddcea6377779de48b82","https://git.kernel.org/stable/c/a0f90c8815706981c483a652a6aefca51a5e191c"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:52:00.836172422+00:00"},"epss":{"cve":"CVE-2022-48771","score":0.00213,"percentile":0.11594,"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."]}