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| author | Christoph Hellwig <hch@lst.de> | 2008-06-11 21:53:58 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 11:04:03 -0400 |
| commit | df5b5520b21d8a2554ede65c09b288833c77144d (patch) | |
| tree | 6f4e2876c263b0b359cd3bba92bbf80fe139064d | |
| parent | f46b5a66b3316ef2f8febfe4c56e2d555e2c3979 (diff) | |
| download | lwn-df5b5520b21d8a2554ede65c09b288833c77144d.tar.gz lwn-df5b5520b21d8a2554ede65c09b288833c77144d.zip | |
BTRFS_IOC_TRANS_START should be privilegued
As mentioned in the comment next to it btrfs_ioctl_trans_start can
do bad damage to filesystems and thus should be limited to privilegued
users.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
| -rw-r--r-- | fs/btrfs/ioctl.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index da8de6cfdb5a..6fb455802759 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -706,6 +706,9 @@ long btrfs_ioctl_trans_start(struct file *file) struct btrfs_trans_handle *trans; int ret = 0; + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + mutex_lock(&root->fs_info->fs_mutex); if (file->private_data) { ret = -EINPROGRESS; |