Ghostwire

CVE-2026-99253: In the Linux kernel, the following vulnerability has been resolved: io_uring/cancel: rearm local work wake up before...

HIGH CVSS 0.0

Published: November 3, 2026 | Last Modified: November 3, 2026

Description

In the Linux kernel, the following vulnerability has been resolved: io_uring/cancel: rearm local work wake up before sleep io_uring_try_cancel_requests() sets ->cq_wait_nr to 1 so that the next io_req_local_work_add() wakes the cancelling task. The add that takes the count to zero is the only one that wakes, later ones see a count cq_wait_nr, 1) atomic_read(&ctx->cq_wait_nr) == 1 count taken, wake_up_state() // task is running, no-op prepare_to_wait(TASK_INTERRUPTIBLE) io_local_work_pending() == false schedule() mpscq_push(req B) cq_wait_nr

Ghostwire Analysis — What This Means Practically

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Security Coverage (1 articles)

References