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bcachefs: set disk state should check new_state

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A new device state that is not a valid state should return -EINVAL
in the disk set state ioctl.

Signed-off-by: Dan Robertson <dan@dlrobertson.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Dan Robertson 2021-07-08 18:15:38 -04:00 committed by Kent Overstreet
parent b00fde8fb1
commit f0412b6e44
1 changed files with 2 additions and 1 deletions
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3
fs/bcachefs/chardev.c
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@ -275,7 +275,8 @@ static long bch2_ioctl_disk_set_state(struct bch_fs *c,
BCH_FORCE_IF_METADATA_LOST|
BCH_FORCE_IF_DEGRADED|
BCH_BY_INDEX)) ||
arg.pad[0] || arg.pad[1] || arg.pad[2])
arg.pad[0] || arg.pad[1] || arg.pad[2] ||
arg.new_state >= BCH_MEMBER_STATE_NR)
return -EINVAL;
ca = bch2_device_lookup(c, arg.dev, arg.flags);