{"id":"CVE-2023-3389","revision":null,"records":[{"revision":"2b7e4ccfd7014725a62e58e16251294a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2023-3389","aliases":[],"title":"Use after free in io_uring in the Linux Kernel","description":"A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation.\n\nRacing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer.\n\nWe recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59 (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and\u00A00e388fce7aec40992eadee654193cad345d62663 for 5.15 stable).","state":0,"publishedAt":"2023-06-28T19:33:55.097+00:00","modifiedAt":"2026-10-14T20:51:34.078+00:00","affected":[{"ecosystem":"Vendor product","name":"kernel","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageName\": \"kernel\",\n                    \"product\": \"Kernel\",\n                    \"repo\": \"https://git.kernel.org\",\n                    \"vendor\": \"Linux\",\n                    \"versions\": [\n                        {\n                            \"lessThan\": \"6.4\",\n                            \"status\": \"affected\",\n                            \"version\": \"5.13\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"5.10.185\",\n                            \"status\": \"affected\",\n                            \"version\": \"5.10.162\",\n                            \"versionType\": \"custom\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 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,"severity":"HIGH"}],"references":["https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=0e388fce7aec40992eadee654193cad345d62663","https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=4716c73b188566865bdd79c3a6709696a224ac04","https://kernel.dance/0e388fce7aec40992eadee654193cad345d62663","https://kernel.dance/4716c73b188566865bdd79c3a6709696a224ac04","https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ef7dfac51d8ed961b742218f526bd589f3900a59","https://kernel.dance/ef7dfac51d8ed961b742218f526bd589f3900a59","https://security.netapp.com/advisory/ntap-20230731-0001/","https://www.debian.org/security/2023/dsa-5480","http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html","https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-3389","license":"CVE Program Terms of Use","key":"cve-program:CVE-2023-3389","identifiers":["CVE-2023-3389"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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