CVE-2025-22068
ublk: make sure ubq->canceling is set when queue is frozen
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Apr 16, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
216c8f5ef0f209a3797292c487bdaa6991ab4b92 < 7e3497d7dacb5aee69dd9be842b778083cae0e75 216c8f5ef0f209a3797292c487bdaa6991ab4b92 < 5491400589e7572c2d2627ed6384302f7672aa1d 216c8f5ef0f209a3797292c487bdaa6991ab4b92 < 9158359015f0eda00e521e35b7bc7ebce176aebf 216c8f5ef0f209a3797292c487bdaa6991ab4b92 < 8741d0737921ec1c03cf59aebf4d01400c2b461a
Linux / Linux
6.7
References
git.kernel.org: https://git.kernel.org/stable/c/7e3497d7dacb5aee69dd9be842b778083cae0e75 git.kernel.org: https://git.kernel.org/stable/c/5491400589e7572c2d2627ed6384302f7672aa1d git.kernel.org: https://git.kernel.org/stable/c/9158359015f0eda00e521e35b7bc7ebce176aebf git.kernel.org: https://git.kernel.org/stable/c/8741d0737921ec1c03cf59aebf4d01400c2b461a