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(parent: 249bed8) | patch
dm ioctl: Refuse to create device named "control"
authorDemi Marie Obenour <demi@invisiblethingslab.com>
Sat, 3 Jun 2023 14:52:43 +0000 (10:52 -0400)
committerMike Snitzer <snitzer@kernel.org>
Fri, 23 Jun 2023 14:31:51 +0000 (10:31 -0400)
commita85f1a9de91a59cd9b12d60f631cbda9c56a1c3c
treedb34913f6f8dbc5cb2eb2712d6b2728507f7a72ftree
parent249bed821b4db6d95a99160f7d6d236ea5fe6362commit | diff
dm ioctl: Refuse to create device named "control"

Typical userspace setups create a symlink under /dev/mapper with the
name of the device, but /dev/mapper/control is reserved for DM's control
device.  Therefore, trying to create such a device is almost certain to
be a userspace bug.

Signed-off-by: Demi Marie Obenour <demi@invisiblethingslab.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
drivers/md/dm-ioctl.c diff | blob | history
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