nvme/ioctl: check SUBMIT_IO with nvme_cmd_allowed()

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Unlike IO_CMD / IO64_CMD, NVME_IOCTL_SUBMIT_IO never calls
nvme_cmd_allowed(). Unprivileged callers can thus issue I/O on a
partition device or write through a read-only file descriptor.

Pass flags and open_for_write through and reject disallowed commands
with -EACCES.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Yang Xiuwei <yangxiuwei@kylinos.cn>
Signed-off-by: Keith Busch <kbusch@kernel.org>

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Yang Xiuwei 2026-07-20 14:03:05 +08:00 • committed by Keith Busch

parent 13330446ca

commit b53d495c7f

1 changed files with 6 additions and 2 deletions

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8

drivers/nvme/host/ioctl.c

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