{"id":"CVE-2023-3389","details":"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 0e388fce7aec40992eadee654193cad345d62663 for 5.15 stable).","modified":"2026-03-15T22:46:56.448301Z","published":"2023-06-28T20:15:09.773Z","related":["SUSE-SU-2023:2803-1","SUSE-SU-2023:2820-1","SUSE-SU-2023:2831-1","SUSE-SU-2023:2871-1","SUSE-SU-2023:2892-1","SUSE-SU-2023:3302-1"],"references":[{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20230731-0001/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2023/dsa-5480"},{"type":"ADVISORY","url":"http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html"},{"type":"FIX","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=0e388fce7aec40992eadee654193cad345d62663"},{"type":"FIX","url":"https://kernel.dance/4716c73b188566865bdd79c3a6709696a224ac04"},{"type":"FIX","url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ef7dfac51d8ed961b742218f526bd589f3900a59"},{"type":"FIX","url":"https://kernel.dance/0e388fce7aec40992eadee654193cad345d62663"},{"type":"FIX","url":"https://kernel.dance/ef7dfac51d8ed961b742218f526bd589f3900a59"},{"type":"FIX","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=4716c73b188566865bdd79c3a6709696a224ac04"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"5.10.162"},{"fixed":"5.10.185"}]},{"events":[{"introduced":"5.13"},{"fixed":"6.4"}]},{"events":[{"introduced":"0"},{"last_affected":"14.04"}]},{"events":[{"introduced":"0"},{"last_affected":"16.04"}]},{"events":[{"introduced":"0"},{"last_affected":"18.04"}]},{"events":[{"introduced":"0"},{"last_affected":"20.04"}]},{"events":[{"introduced":"0"},{"last_affected":"22.04"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]},{"events":[{"introduced":"0"},{"last_affected":"11.0"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-3389.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"}]}