ublk: validate ublk server pid

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ublk server pid(the `tgid` of the process opening the ublk device) is stored
in `ublk_device->ublksrv_tgid`. This `tgid` is then checked against the
`ublksrv_pid` in `ublk_ctrl_start_dev` and `ublk_ctrl_end_recovery`.

This ensures that correct ublk server pid is stored in device info.

Fixes: 71f28f3136 ("ublk_drv: add io_uring based userspace block driver")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250713143415.2857561-2-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Ming Lei 2025-07-13 22:33:56 +08:00 • committed by Jens Axboe

parent 2e92ac61c9

commit c2c8089f32

1 changed files with 9 additions and 0 deletions

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drivers/block/ublk_drv.c

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