CVE-2025-22068 (GCVE-0-2025-22068)
Vulnerability from cvelistv5
Published
2025-04-16 14:12
Modified
2025-10-01 16:16
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: ublk: make sure ubq->canceling is set when queue is frozen Now ublk driver depends on `ubq->canceling` for deciding if the request can be dispatched via uring_cmd & io_uring_cmd_complete_in_task(). Once ubq->canceling is set, the uring_cmd can be done via ublk_cancel_cmd() and io_uring_cmd_done(). So set ubq->canceling when queue is frozen, this way makes sure that the flag can be observed from ublk_queue_rq() reliably, and avoids use-after-free on uring_cmd.
References
Impacted products
Vendor Product Version
Linux Linux Version: 216c8f5ef0f209a3797292c487bdaa6991ab4b92
Version: 216c8f5ef0f209a3797292c487bdaa6991ab4b92
Version: 216c8f5ef0f209a3797292c487bdaa6991ab4b92
Version: 216c8f5ef0f209a3797292c487bdaa6991ab4b92
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