queue_work() or queue_work_on() in irq context triggers NULL pointer dereference

Solution Verified - Updated -

Issue

When kernel function queue_work() or queue_work_on() is used in irq (not in task) context, for instance in interrupt handler, there is a potential case that triggers NULL pointer dereference. Such scenario can appear in 3rd-party kernel module.

Environment

  • RHEL 7

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