diff options
| -rw-r--r-- | security/selinux/selinuxfs.c | 39 |
1 files changed, 25 insertions, 14 deletions
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c index 131816878e50..19670e9bcd72 100644 --- a/security/selinux/selinuxfs.c +++ b/security/selinux/selinuxfs.c @@ -355,6 +355,9 @@ static int sel_make_classes(struct selinux_fs_info *fsi, static struct dentry *sel_make_dir(struct dentry *dir, const char *name, unsigned long *ino); +/* declaration for sel_remove_old_policy_nodes */ +static void sel_remove_entries(struct dentry *de); + static ssize_t sel_read_mls(struct file *filp, char __user *buf, size_t count, loff_t *ppos) { @@ -509,11 +512,33 @@ static const struct file_operations sel_policy_ops = { .llseek = generic_file_llseek, }; +static void sel_remove_old_policy_nodes(struct selinux_fs_info *fsi) +{ + u32 i; + + /* bool_dir cleanup */ + for (i = 0; i < fsi->bool_num; i++) + kfree(fsi->bool_pending_names[i]); + kfree(fsi->bool_pending_names); + kfree(fsi->bool_pending_values); + fsi->bool_num = 0; + fsi->bool_pending_names = NULL; + fsi->bool_pending_values = NULL; + + sel_remove_entries(fsi->bool_dir); + + /* class_dir cleanup */ + sel_remove_entries(fsi->class_dir); + +} + static int sel_make_policy_nodes(struct selinux_fs_info *fsi, struct selinux_policy *newpolicy) { int ret; + sel_remove_old_policy_nodes(fsi); + ret = sel_make_bools(fsi, newpolicy); if (ret) { pr_err("SELinux: failed to load policy booleans\n"); @@ -1348,17 +1373,6 @@ static int sel_make_bools(struct selinux_fs_info *fsi, int *values = NULL; u32 sid; - /* remove any existing files */ - for (i = 0; i < fsi->bool_num; i++) - kfree(fsi->bool_pending_names[i]); - kfree(fsi->bool_pending_names); - kfree(fsi->bool_pending_values); - fsi->bool_num = 0; - fsi->bool_pending_names = NULL; - fsi->bool_pending_values = NULL; - - sel_remove_entries(dir); - ret = -ENOMEM; page = (char *)get_zeroed_page(GFP_KERNEL); if (!page) @@ -1873,9 +1887,6 @@ static int sel_make_classes(struct selinux_fs_info *fsi, int rc, nclasses, i; char **classes; - /* delete any existing entries */ - sel_remove_entries(fsi->class_dir); - rc = security_get_classes(newpolicy, &classes, &nclasses); if (rc) return rc; |