All errata/sisyphus/ALT-PU-2025-17049-1
ALT-PU-2025-17049-1

Package update kernel-image-6.17 in branch sisyphus

Version6.17.12-alt1
Published2025-12-13
Max severityMEDIUM
Severity:

Closed issues (1)

CVE-2025-68333
MEDIUM5.5

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); 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.

Published: 2025-12-22Modified: 2026-02-26
CVSS 3.xMEDIUM 5.5
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H