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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
216c8f5ef0f209a3797292c487bdaa6991ab4b92 to < 7e3497d7dacb5aee69dd9be842b778083cae0e75affected216c8f5ef0f209a3797292c487bdaa6991ab4b92 to < 5491400589e7572c2d2627ed6384302f7672aa1daffected216c8f5ef0f209a3797292c487bdaa6991ab4b92 to < 9158359015f0eda00e521e35b7bc7ebce176aebfaffected216c8f5ef0f209a3797292c487bdaa6991ab4b92 to < 8741d0737921ec1c03cf59aebf4d01400c2b461aaffected
Linux Linux
Default version status: affected
6.7affected0 to < 6.7unaffected6.12.23 to ≤ 6.12.*unaffected6.13.11 to ≤ 6.13.*unaffected6.14.2 to ≤ 6.14.*unaffected6.15 to ≤ *unaffected