diff options
Diffstat (limited to 'fs/udf/file.c')
| -rw-r--r-- | fs/udf/file.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/udf/file.c b/fs/udf/file.c index 356c2bf148a5..cd31e4f6d6da 100644 --- a/fs/udf/file.c +++ b/fs/udf/file.c @@ -257,12 +257,22 @@ const struct file_operations udf_file_operations = { static int udf_setattr(struct dentry *dentry, struct iattr *attr) { struct inode *inode = d_inode(dentry); + struct super_block *sb = inode->i_sb; int error; error = setattr_prepare(dentry, attr); if (error) return error; + if ((attr->ia_valid & ATTR_UID) && + UDF_QUERY_FLAG(sb, UDF_FLAG_UID_SET) && + !uid_eq(attr->ia_uid, UDF_SB(sb)->s_uid)) + return -EPERM; + if ((attr->ia_valid & ATTR_GID) && + UDF_QUERY_FLAG(sb, UDF_FLAG_GID_SET) && + !gid_eq(attr->ia_gid, UDF_SB(sb)->s_gid)) + return -EPERM; + if ((attr->ia_valid & ATTR_SIZE) && attr->ia_size != i_size_read(inode)) { error = udf_setsize(inode, attr->ia_size); |