Description

In the Linux kernel, the following vulnerability has been resolved: sched_ext: Fix possible deadlock in the deferred_irq_workfn() For PREEMPT_RT=y kernels, the deferred_irq_workfn() is executed in the per-cpu irq_work/* task context and not disable-irq, if the rq returned by container_of() is current CPU's rq, the following scenarios may occur: lock(&rq->__lock); <Interrupt> lock(&rq->__lock); This commit use IRQ_WORK_INIT_HARD() to replace init_irq_work() to initialize rq->scx.deferred_irq_work, make the deferred_irq_workfn() is always invoked in hard-irq context.

INFO

Published Date :

2025-12-22T16:14:11.081Z

Last Modified :

2026-01-30T15:35:35.831Z

Source :

Linux
AFFECTED PRODUCTS

The following products are affected by CVE-2025-68333 vulnerability.

Vendors Products
Linux
  • Linux Kernel

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