The Linux kernel's estimator timer is a mechanism used to schedule tasks. However, when the PREEMPT_RT scheduling option is enabled, this timer can be preempted, leading to potential issues with task scheduling and timing.
The Linux kernel's estimator timer is a mechanism used to schedule tasks. However, when the PREEMPT_RT scheduling option is enabled, this timer can be preempted, leading to potential issues with task scheduling and timing.
Specific version info not stated in the advisory.
To fix this issue, update your Linux kernel to version 5.17 or later. Alternatively, you can apply the patch manually by applying the following patches:
https://git.kernel.org/stable/c/9f74c0ea9b26d1505d55b61e36b1623dd347e1d1https://git.kernel.org/stable/c/a22ec2ee824be30803068a52f78f7ffe3bc879fbhttps://git.kernel.org/stable/c/e79923824c48b930609680be04cb29253fc4a17dImmediate mitigations include disabling the PREEMPT_RT scheduling option or restricting network access to prevent potential issues.