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).
References
Configurations
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History
13 Feb 2025, 17:16
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Summary | (en) 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). |
Information
Published : 2023-06-28 20:15
Updated : 2025-02-13 17:16
NVD link : CVE-2023-3389
Mitre link : CVE-2023-3389
CVE.ORG link : CVE-2023-3389
JSON object : View
Products Affected
linux
- linux_kernel
canonical
- ubuntu_linux
debian
- debian_linux
CWE
CWE-416
Use After Free