diff options
| author | Niklas Cassel <[email protected]> | 2021-08-11 11:05:18 +0000 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2021-08-24 10:12:36 -0600 |
| commit | ead3b768bb51259e3a5f2287ff5fc9041eb6f450 (patch) | |
| tree | 341b117d7d9debcf01e9a49975ed498d28e3e2c9 | |
| parent | 158ee7b65653d9f841823c249014c2d0dfdeeb8f (diff) | |
blk-zoned: allow zone management send operations without CAP_SYS_ADMIN
Zone management send operations (BLKRESETZONE, BLKOPENZONE, BLKCLOSEZONE
and BLKFINISHZONE) should be allowed under the same permissions as write().
(write() does not require CAP_SYS_ADMIN).
Additionally, other ioctls like BLKSECDISCARD and BLKZEROOUT only check if
the fd was successfully opened with FMODE_WRITE.
(They do not require CAP_SYS_ADMIN).
Currently, zone management send operations require both CAP_SYS_ADMIN
and that the fd was successfully opened with FMODE_WRITE.
Remove the CAP_SYS_ADMIN requirement, so that zone management send
operations match the access control requirement of write(), BLKSECDISCARD
and BLKZEROOUT.
Fixes: 3ed05a987e0f ("blk-zoned: implement ioctls")
Signed-off-by: Niklas Cassel <[email protected]>
Reviewed-by: Damien Le Moal <[email protected]>
Reviewed-by: Aravind Ramesh <[email protected]>
Reviewed-by: Adam Manzanares <[email protected]>
Reviewed-by: Himanshu Madhani <[email protected]>
Reviewed-by: Johannes Thumshirn <[email protected]>
Cc: [email protected] # v4.10+
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
| -rw-r--r-- | block/blk-zoned.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/block/blk-zoned.c b/block/blk-zoned.c index 86fce751bb17..8a60dbeb44be 100644 --- a/block/blk-zoned.c +++ b/block/blk-zoned.c @@ -421,9 +421,6 @@ int blkdev_zone_mgmt_ioctl(struct block_device *bdev, fmode_t mode, if (!blk_queue_is_zoned(q)) return -ENOTTY; - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - if (!(mode & FMODE_WRITE)) return -EBADF; |