A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Racing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer. We recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59 (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and 0e388fce7aec40992eadee654193cad345d62663 for 5.15 stable).
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: Google

Published: 2023-06-28T19:33:55.097Z

Updated: 2024-08-02T06:55:02.753Z

Reserved: 2023-06-23T13:43:00.034Z

Link: CVE-2023-3389

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2023-06-28T20:15:09.773

Modified: 2023-10-26T20:28:28.367

Link: CVE-2023-3389

cve-icon Redhat

Severity : Moderate

Publid Date: 2023-06-16T00:00:00Z

Links: CVE-2023-3389 - Bugzilla