{"id":"CVE-2023-2236","details":"A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation.\n\nBoth io_install_fixed_file and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability.\n\nWe recommend upgrading past commit 9d94c04c0db024922e886c9fd429659f22f48ea4.","modified":"2026-03-15T22:45:48.628792Z","published":"2023-05-01T13:15:44.850Z","references":[{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20230601-0010/"},{"type":"FIX","url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9d94c04c0db024922e886c9fd429659f22f48ea4"},{"type":"FIX","url":"https://kernel.dance/9d94c04c0db024922e886c9fd429659f22f48ea4"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"5.19"},{"fixed":"6.0.11"}]},{"events":[{"introduced":"0"},{"last_affected":"h300s"}]},{"events":[{"introduced":"0"},{"last_affected":"h410c"}]},{"events":[{"introduced":"0"},{"last_affected":"h410s"}]},{"events":[{"introduced":"0"},{"last_affected":"h500s"}]},{"events":[{"introduced":"0"},{"last_affected":"h700s"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-2236.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}