On 11/21/13 at 08:45am, Greg KH wrote: > > +static struct kobj_attribute boot_params_version_attr = > > + __ATTR(version, S_IRUGO, boot_params_version_show, NULL); > > __ATTR_RO() please.
Will do > > > +static struct kobj_attribute type_attr = > > + __ATTR(type, S_IRUGO, setup_data_type_show, NULL); > > __ATTR_RO() here too. Will do [snip] > > + > > + ret = get_setup_data_size(nr, &size); > > + if (ret) > > + goto out_kobj; > > + > > + data_attr.size = size; > > + ret = sysfs_create_bin_file(kobj, &data_attr); > > + if (ret) > > + goto out_file; > > + *kobjp = kobj; > > You just raced with userspace (creating and announcing the kobject and > then, afterward, at some later point in time, created the sysfs files. > Please use the groups option to create the files properly before > announcing the kobject to userspace. Will do [snip] > > + goto out_boot_params_kobj; > > + ret = sysfs_create_bin_file(boot_params_kobj, > > + &boot_params_data_attr); > > + if (ret) > > + goto out_create_file; > > + > > + ret = create_setup_data_nodes(boot_params_kobj); > > + if (ret) > > + goto out_create_bin; > > + > > + return 0; > > Same race condition here as well. Use a groups structure please. > Will use group attributes Thanks for review Dave _______________________________________________ kexec mailing list [email protected] http://lists.infradead.org/mailman/listinfo/kexec
