{"id":"CVE-2026-45995","summary":"io_uring/zcrx: fix user_struct uaf","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/zcrx: fix user_struct uaf\n\nio_free_rbuf_ring() usees a struct user_struct, which\nio_zcrx_ifq_free() puts it down before destroying the ring.","modified":"2026-06-18T03:57:20.130486721Z","published":"2026-05-27T12:55:48.587Z","related":["openSUSE-SU-2026:10954-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45995.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0fcccfd87152f957fa8312b841f6efef42a05a20"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9feb88eeda6d288f93fcfb6bca563f89e316479d"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45995.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45995"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5c686456a4e83ef06c74d40be05c21a0ef136684"},{"fixed":"9feb88eeda6d288f93fcfb6bca563f89e316479d"},{"fixed":"0fcccfd87152f957fa8312b841f6efef42a05a20"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-45995.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.4"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-45995.json"}}],"schema_version":"1.7.5"}