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Description

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.

PUBLISHED Reserved 2024-12-29 | Published 2025-04-16 | Updated 2026-05-11 | Assigner Linux

Product status

Default status
unaffected

216c8f5ef0f209a3797292c487bdaa6991ab4b92 (git) before 7e3497d7dacb5aee69dd9be842b778083cae0e75
affected

216c8f5ef0f209a3797292c487bdaa6991ab4b92 (git) before 5491400589e7572c2d2627ed6384302f7672aa1d
affected

216c8f5ef0f209a3797292c487bdaa6991ab4b92 (git) before 9158359015f0eda00e521e35b7bc7ebce176aebf
affected

216c8f5ef0f209a3797292c487bdaa6991ab4b92 (git) before 8741d0737921ec1c03cf59aebf4d01400c2b461a
affected

Default status
affected

6.7
affected

Any version before 6.7
unaffected

6.12.23 (semver)
unaffected

6.13.11 (semver)
unaffected

6.14.2 (semver)
unaffected

6.15 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/7e3497d7dacb5aee69dd9be842b778083cae0e75

git.kernel.org/...c/5491400589e7572c2d2627ed6384302f7672aa1d

git.kernel.org/...c/9158359015f0eda00e521e35b7bc7ebce176aebf

git.kernel.org/...c/8741d0737921ec1c03cf59aebf4d01400c2b461a

cve.org (CVE-2025-22068)

nvd.nist.gov (CVE-2025-22068)

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