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CVE-2023-2612

Description

Jean-Baptiste Cayrou discovered that the shiftfs file system in the Ubuntu Linux kernel contained a race condition when handling inode locking in some situations. A local attacker could use this to cause a denial of service (kernel deadlock).

POC

Reference

- http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html

- https://ubuntu.com/security/CVE-2023-2612

- https://ubuntu.com/security/notices/USN-6127-1

Github

- https://github.com/xairy/linux-kernel-exploitation