From: Josef Bacik <jba...@fb.com>
We need to use file->private_data for readdir on directories, so just
don't allow user space transactions on directories.
Signed-off-by: Josef Bacik <jba...@fb.com>
---
fs/btrfs/ioctl.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index bedeec6..ddb3811 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3968,6 +3968,9 @@ static long btrfs_ioctl_trans_start(struct file *file)
struct btrfs_trans_handle *trans;
int ret;
+ if (S_ISDIR(inode->i_mode))
+ return -EINVAL;
+
ret = -EPERM;
if (!capable(CAP_SYS_ADMIN))
goto out;
--
2.7.4
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