Ubuntu 22.04 LTS USN-6650-1: Critical Linux Kernel Crash Issue
ubuntu
February 26, 2024
The system could be made to crash under certain conditions.
Summary
A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS Summary: The system could be made to crash under certain conditions. Software Description: - linux-oem-6.1: Linux kernel for OEM systems Details: Zhenghan Wang discovered that the generic ID allocator implementation in the Linux kernel did not properly check for null bitmap when releasing IDs. A local attacker could use this to cause a denial of service (system crash).
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS: linux-image-6.1.0-1034-oem 6.1.0-1034.34 linux-image-oem-22.04 6.1.0.1034.35 linux-image-oem-22.04a 6.1.0.1034.35 linux-image-oem-22.04b 6.1.0.1034.35 linux-image-oem-22.04c 6.1.0.1034.35 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.
References
https://ubuntu.com/security/notices/USN-6650-1
CVE-2023-6915
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Ubuntu Security Notice USN-6650-1
Package Information
https://launchpad.net/ubuntu/+source/linux-oem-6.1/6.1.0-1034.34
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