CyberRota Analysis
AI-GeneratedThe vulnerability in the Linux kernel affects the FUSE (Filesystem in Userspace) subsystem, specifically related to a race condition between interrupt handling and request resending. This flaw can lead to unexpected behavior when processing filesystem requests, potentially compromising system stability or data integrity. Organizations using Linux systems that rely on FUSE should prioritize this fix to mitigate any risks associated with this race condition.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: fuse: fix race between interrupt and resend After commit f8fce75fedf7 ("fuse: clear intr_entry in fuse_resend and fuse_remove_pending_req") the WARN_ON(!list_empty(&req->intr_entry)) in fuse_request_free() still triggers due to the following race: In request_wait_answer() if (test_bit(FR_SENT, &req->flags)) -> returns true In fuse_chan_resend() clear_bit(FR_SENT, &req->flags) In request_wait_answer() queue_interrupt(req) Fix by: - move clearing FR_SENT inside fpq->lock - move setting FR_PENDING inside fiq->lock - recheck FR_SENT after acquiring fiq->lock in fuse_dev_queue_interrupt()