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| author | satoru takeuchi <satoru.takeuchi@gmail.com> | 2017-09-12 16:42:52 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-05 10:41:47 +0300 |
| commit | 4c16afac1875db0ad251b1df0e12203302528fcb (patch) | |
| tree | d6384e63d8c82ca7275f0014958488421dcb1634 /fs/btrfs/lzo.c | |
| parent | 0efde43517a54007c4b19a72d9e3da8a0199074e (diff) | |
| download | linux-4c16afac1875db0ad251b1df0e12203302528fcb.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 'fs/btrfs/lzo.c')
0 files changed, 0 insertions, 0 deletions