{"api_version":"1","generated_at":"2026-04-22T23:53:14+00:00","cve":"CVE-2022-4696","urls":{"html":"https://cve.report/CVE-2022-4696","api":"https://cve.report/api/cve/CVE-2022-4696.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2022-4696","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-4696"},"summary":{"title":"CVE-2022-4696","description":"There exists a use-after-free vulnerability in the Linux kernel through io_uring and the IORING_OP_SPLICE operation. If IORING_OP_SPLICE is missing the IO_WQ_WORK_FILES flag, which signals that the operation won't use current->nsproxy, so its reference counter is not increased. This assumption is not always true as calling io_splice on specific files will call the get_uts function which will use current->nsproxy leading to invalidly decreasing its reference counter later causing the use-after-free vulnerability. 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