Scheduling Context Vulnerability in Linux Kernel Affecting Multiple Versions

CVE-2026-98418

What is CVE-2026-98418?

A flaw in the Linux kernel involves proxy execution that may incorrectly trigger warnings when a blocked donor's scheduling context is migrated to a CPU, even if the donor is marked as migration-disabled. This false positive occurs due to the way the wakeup path interacts with the CPU allocation, leading to unwarranted alerts which could confuse developers. As a result, proper handling of blocked proxy donors is essential to avoid unnecessary warning notifications, ensuring system stability and performance.

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