1 files changed, 32 insertions, 5 deletions

diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c
index 6a9a5c5a4e7d..a44879b0c72f 100644
--- a/kernel/auditfilter.c
+++ b/kernel/auditfilter.c
@@ -302,6 +302,15 @@ int __init audit_register_class(int class, unsigned *list)
         return 0;
 }
 
+int audit_match_class(int class, unsigned syscall)
+{
+        if (unlikely(syscall >= AUDIT_BITMASK_SIZE * sizeof(__u32)))
+                return 0;
+        if (unlikely(class >= AUDIT_SYSCALL_CLASSES || !classes[class]))
+                return 0;
+        return classes[class][AUDIT_WORD(syscall)] & AUDIT_BIT(syscall);
+}
+
 /* Common user-space to kernel rule translation. */
 static inline struct audit_entry *audit_to_entry_common(struct audit_rule *rule)
 {
@@ -404,6 +413,7 @@ static struct audit_entry *audit_rule_to_entry(struct audit_rule *rule)
                 case AUDIT_PERS:
                 case AUDIT_ARCH:
                 case AUDIT_MSGTYPE:
+                case AUDIT_PPID:
                 case AUDIT_DEVMAJOR:
                 case AUDIT_DEVMINOR:
                 case AUDIT_EXIT:
@@ -413,6 +423,10 @@ static struct audit_entry *audit_rule_to_entry(struct audit_rule *rule)
                 case AUDIT_ARG2:
                 case AUDIT_ARG3:
                         break;
+                case AUDIT_PERM:
+                        if (f->val & ~15)
+                                goto exit_free;
+                        break;
                 case AUDIT_INODE:
                         err = audit_to_inode(&entry->rule, f);
                         if (err)
@@ -567,6 +581,10 @@ static struct audit_entry *audit_data_to_entry(struct audit_rule_data *data,
                         entry->rule.buflen += f->val;
                         entry->rule.filterkey = str;
                         break;
+                case AUDIT_PERM:
+                        if (f->val & ~15)
+                                goto exit_free;
+                        break;
                 default:
                         goto exit_free;
                 }
@@ -913,7 +931,7 @@ static void audit_update_watch(struct audit_parent *parent,
                 }
 
                 ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE);
-                audit_log_format(ab, "audit updated rules specifying watch=");
+                audit_log_format(ab, "audit updated rules specifying path=");
                 audit_log_untrustedstring(ab, owatch->path);
                 audit_log_format(ab, " with dev=%u ino=%lu\n", dev, ino);
                 audit_log_end(ab);
@@ -936,19 +954,28 @@ static void audit_remove_parent_watches(struct audit_parent *parent)
         struct audit_watch *w, *nextw;
         struct audit_krule *r, *nextr;
         struct audit_entry *e;
+        struct audit_buffer *ab;
 
         mutex_lock(&audit_filter_mutex);
         parent->flags |= AUDIT_PARENT_INVALID;
         list_for_each_entry_safe(w, nextw, &parent->watches, wlist) {
                 list_for_each_entry_safe(r, nextr, &w->rules, rlist) {
                         e = container_of(r, struct audit_entry, rule);
+
+                        ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE);
+                        audit_log_format(ab, "audit implicitly removed rule path=");
+                        audit_log_untrustedstring(ab, w->path);
+                        if (r->filterkey) {
+                                audit_log_format(ab, " key=");
+                                audit_log_untrustedstring(ab, r->filterkey);
+                        } else
+                                audit_log_format(ab, " key=(null)");
+                        audit_log_format(ab, " list=%d", r->listnr);
+                        audit_log_end(ab);
+
                         list_del(&r->rlist);
                         list_del_rcu(&e->list);
                         call_rcu(&e->rcu, audit_free_rule_rcu);
-
-                        audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE,
-                                 "audit implicitly removed rule from list=%d\n",
-                                  AUDIT_FILTER_EXIT);
                 }
                 audit_remove_watch(w);
         }