Messages in this thread | | | From | Niklas Cassel <> | Subject | [PATCH v3 0/2] allow blk-zoned ioctls without CAP_SYS_ADMIN | Date | Mon, 14 Jun 2021 12:23:19 +0000 |
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From: Niklas Cassel <niklas.cassel@wdc.com>
Allow the following blk-zoned ioctls: BLKREPORTZONE, BLKRESETZONE, BLKOPENZONE, BLKCLOSEZONE, and BLKFINISHZONE to be performed without CAP_SYS_ADMIN.
Neither read() nor write() requires CAP_SYS_ADMIN, and considering the close relationship between read()/write() and these ioctls, there is no reason to require CAP_SYS_ADMIN for these ioctls either.
Changes since v2: -Drop the FMODE_READ check from patch 2/2. Right now it is possible to open() the device with O_WRONLY and get the zone report from that fd. Therefore adding a FMODE_READ check on BLKREPORTZONE would break existing applications. Instead, just remove the existing CAP_SYS_ADMIN check.
Niklas Cassel (2): blk-zoned: allow zone management send operations without CAP_SYS_ADMIN blk-zoned: allow BLKREPORTZONE without CAP_SYS_ADMIN
block/blk-zoned.c | 6 ------ 1 file changed, 6 deletions(-)
-- 2.31.1
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