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| author | Jeff Mahoney <jeffm@suse.com> | 2016-09-21 08:31:29 -0400 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2016-10-05 22:40:20 -0400 |
| commit | 31714bce258a8b098d5629a88f61568c28bf8ca4 (patch) | |
| tree | 21d1473f3eb19c71b2dcbb40444c5de64345a36d /block | |
| parent | 400f32af8fa658ffd530aab033e5eb0ad419c18d (diff) | |
| download | linux-stable-31714bce258a8b098d5629a88f61568c28bf8ca4.tar.gz linux-stable-31714bce258a8b098d5629a88f61568c28bf8ca4.tar.bz2 linux-stable-31714bce258a8b098d5629a88f61568c28bf8ca4.zip | |
btrfs: ensure that file descriptor used with subvol ioctls is a dir
[ Upstream commit 325c50e3cebb9208009083e841550f98a863bfa0 ]
If the subvol/snapshot create/destroy ioctls are passed a regular file
with execute permissions set, we'll eventually Oops while trying to do
inode->i_op->lookup via lookup_one_len.
This patch ensures that the file descriptor refers to a directory.
Fixes: cb8e70901d (Btrfs: Fix subvolume creation locking rules)
Fixes: 76dda93c6a (Btrfs: add snapshot/subvolume destroy ioctl)
Cc: <stable@vger.kernel.org> #v2.6.29+
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions