diff options
author | Jeff Mahoney <jeffm@suse.com> | 2016-09-21 15:31:29 +0300 |
---|---|---|
committer | Sasha Levin <alexander.levin@verizon.com> | 2016-10-06 05:40:20 +0300 |
commit | 31714bce258a8b098d5629a88f61568c28bf8ca4 (patch) | |
tree | 21d1473f3eb19c71b2dcbb40444c5de64345a36d /block/bio.c | |
parent | 400f32af8fa658ffd530aab033e5eb0ad419c18d (diff) | |
download | linux-31714bce258a8b098d5629a88f61568c28bf8ca4.tar.xz |
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/bio.c')
0 files changed, 0 insertions, 0 deletions