diff options
| -rw-r--r-- | fs/ext2/ioctl.c | 5 | ||||
| -rw-r--r-- | fs/ext3/ioctl.c | 5 | ||||
| -rw-r--r-- | fs/ext4/ioctl.c | 5 | ||||
| -rw-r--r-- | fs/jfs/ioctl.c | 3 | ||||
| -rw-r--r-- | fs/reiserfs/ioctl.c | 3 |
5 files changed, 21 insertions, 0 deletions
diff --git a/fs/ext2/ioctl.c b/fs/ext2/ioctl.c index c2324d5fe4a..320b2cb3d4d 100644 --- a/fs/ext2/ioctl.c +++ b/fs/ext2/ioctl.c @@ -47,6 +47,11 @@ int ext2_ioctl (struct inode * inode, struct file * filp, unsigned int cmd, flags &= ~EXT2_DIRSYNC_FL; mutex_lock(&inode->i_mutex); + /* Is it quota file? Do not allow user to mess with it */ + if (IS_NOQUOTA(inode)) { + mutex_unlock(&inode->i_mutex); + return -EPERM; + } oldflags = ei->i_flags; /* diff --git a/fs/ext3/ioctl.c b/fs/ext3/ioctl.c index 4a2a02c95bf..023a070f55f 100644 --- a/fs/ext3/ioctl.c +++ b/fs/ext3/ioctl.c @@ -51,6 +51,11 @@ int ext3_ioctl (struct inode * inode, struct file * filp, unsigned int cmd, flags &= ~EXT3_DIRSYNC_FL; mutex_lock(&inode->i_mutex); + /* Is it quota file? Do not allow user to mess with it */ + if (IS_NOQUOTA(inode)) { + mutex_unlock(&inode->i_mutex); + return -EPERM; + } oldflags = ei->i_flags; /* The JOURNAL_DATA flag is modifiable only by root */ diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index c04c7ccba9e..e7f894bdb42 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -51,6 +51,11 @@ int ext4_ioctl (struct inode * inode, struct file * filp, unsigned int cmd, flags &= ~EXT4_DIRSYNC_FL; mutex_lock(&inode->i_mutex); + /* Is it quota file? Do not allow user to mess with it */ + if (IS_NOQUOTA(inode)) { + mutex_unlock(&inode->i_mutex); + return -EPERM; + } oldflags = ei->i_flags; /* The JOURNAL_DATA flag is modifiable only by root */ diff --git a/fs/jfs/ioctl.c b/fs/jfs/ioctl.c index 3c8663bea98..dfda12a073e 100644 --- a/fs/jfs/ioctl.c +++ b/fs/jfs/ioctl.c @@ -79,6 +79,9 @@ int jfs_ioctl(struct inode * inode, struct file * filp, unsigned int cmd, if (!S_ISDIR(inode->i_mode)) flags &= ~JFS_DIRSYNC_FL; + /* Is it quota file? Do not allow user to mess with it */ + if (IS_NOQUOTA(inode)) + return -EPERM; jfs_get_inode_flags(jfs_inode); oldflags = jfs_inode->mode2; diff --git a/fs/reiserfs/ioctl.c b/fs/reiserfs/ioctl.c index c438a8f83f2..e0f0f098a52 100644 --- a/fs/reiserfs/ioctl.c +++ b/fs/reiserfs/ioctl.c @@ -57,6 +57,9 @@ int reiserfs_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, if (get_user(flags, (int __user *)arg)) return -EFAULT; + /* Is it quota file? Do not allow user to mess with it. */ + if (IS_NOQUOTA(inode)) + return -EPERM; if (((flags ^ REISERFS_I(inode)-> i_attrs) & (REISERFS_IMMUTABLE_FL | REISERFS_APPEND_FL)) |