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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-10-12 01:30:33 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-10-12 01:30:33 -0300
commite914f8eb445e8f74b00303c19c2ffceaedd16a05 (patch)
tree86b60bdecb3cf6abe8546f30803b673892a40335 /fs/btrfs
parent1c29f4306f557ef5d9ed515ec8881f4d1735b058 (diff)
Linux-libre 4.7.6-gnupck-4.7.6-gnu
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/ioctl.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 3722a1f65..4ffcf0c27 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1634,6 +1634,9 @@ static noinline int btrfs_ioctl_snap_create_transid(struct file *file,
int namelen;
int ret = 0;
+ if (!S_ISDIR(file_inode(file)->i_mode))
+ return -ENOTDIR;
+
ret = mnt_want_write_file(file);
if (ret)
goto out;
@@ -1691,6 +1694,9 @@ static noinline int btrfs_ioctl_snap_create(struct file *file,
struct btrfs_ioctl_vol_args *vol_args;
int ret;
+ if (!S_ISDIR(file_inode(file)->i_mode))
+ return -ENOTDIR;
+
vol_args = memdup_user(arg, sizeof(*vol_args));
if (IS_ERR(vol_args))
return PTR_ERR(vol_args);
@@ -1714,6 +1720,9 @@ static noinline int btrfs_ioctl_snap_create_v2(struct file *file,
bool readonly = false;
struct btrfs_qgroup_inherit *inherit = NULL;
+ if (!S_ISDIR(file_inode(file)->i_mode))
+ return -ENOTDIR;
+
vol_args = memdup_user(arg, sizeof(*vol_args));
if (IS_ERR(vol_args))
return PTR_ERR(vol_args);
@@ -2358,6 +2367,9 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
int ret;
int err = 0;
+ if (!S_ISDIR(dir->i_mode))
+ return -ENOTDIR;
+
vol_args = memdup_user(arg, sizeof(*vol_args));
if (IS_ERR(vol_args))
return PTR_ERR(vol_args);