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authorsatoru takeuchi <satoru.takeuchi@gmail.com>2017-09-12 13:42:52 (GMT)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-10-05 07:44:04 (GMT)
commitf11525d7ff5d784270a66c8b888705dd9b96620b (patch)
tree001f6e87e5a4903660628736b467ed9a42dd7494 /sound
parentba44bc49bae6e9e25630388fefbbaa6c6bdd0a11 (diff)
downloadlinux-f11525d7ff5d784270a66c8b888705dd9b96620b.tar.xz
btrfs: prevent to set invalid default subvolid
commit 6d6d282932d1a609e60dc4467677e0e863682f57 upstream. `btrfs sub set-default` succeeds to set an ID which isn't corresponding to any fs/file tree. If such the bad ID is set to a filesystem, we can't mount this filesystem without specifying `subvol` or `subvolid` mount options. Fixes: 6ef5ed0d386b ("Btrfs: add ioctl and incompat flag to set the default mount subvol") Signed-off-by: Satoru Takeuchi <satoru.takeuchi@gmail.com> Reviewed-by: Qu Wenruo <quwenruo.btrfs@gmx.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound')
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