Re: [PATCH 2/2] blk-zoned: allow BLKREPORTZONE without CAP_SYS_ADMIN

[David Sterba]

On Mon, May 31, 2021 at 01:54:53PM +0000, Niklas Cassel wrote:
> From: Niklas Cassel <niklas.cassel@xxxxxxx>
> 
> Performing a BLKREPORTZONE operation should be allowed under the same
> permissions as read(). (read() does not require CAP_SYS_ADMIN).
> 
> Remove the CAP_SYS_ADMIN requirement, and instead check that the fd was
> successfully opened with FMODE_READ. This way BLKREPORTZONE will match
> the access control requirement of read().

Does this mean that a process that does not have read nor write access
to the device itself (blocks) is capable of reading the zone
information? Eg. some monitoring tool.