Ihor Solodrai

**Name of the Vulnerable Software and Affected Versions** Linux kernel (affected versions not specified) **Description** A vulnerability has been resolved in the Linux kernel related to the sched ext component, specifically in the scx ops bypass() function. The issue arises from the addition of outer irqsave/restore locking, which forgot to convert an inner rq unlock irqrestore() to rq unlock(), potentially re-enabling IRQ prematurely. This leads to a warning when raw local irq restore() is called with IRQs enabled. The vulnerability is associated with a call trace involving functions such as scx ops bypass(), scx ops enable.isra.0(), and bpf scx reg(). The estimated number of potentially affected devices and details about real-world incidents are not provided. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.