Kernel Scheduling Issue in Linux Affecting User Processes
CVE-2025-37880

Currently unrated

Key Information:

Vendor: Linux
Status: Linux
Vendor: CVE Published:; 9 May 2025

What is CVE-2025-37880?

A vulnerability in the Linux kernel affects the scheduling of user processes when using the sched_yield syscall in time-travel mode. This issue can lead to significant performance degradation or deadlock due to an improperly implemented userspace spinlock in ASAN, particularly when configurations such as CONFIG_UML_MAX_USERSPACE_ITERATIONS are set. To mitigate this issue, the kernel accounts time whenever a process executes the sched_yield syscall, ensuring more reliable scheduling behavior in affected environments.

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