[PATCH] fix missed create event for directory audit
When an object is created via a symlink into an audited directory, audit misses
the event due to not having collected the inode data for the directory. Modify
__audit_inode_child() to copy the parent inode data if a parent wasn't found in
audit_names[].
Signed-off-by: Amy Griffis <amy.griffis@hp.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index b939ed2..b1356fc 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1251,7 +1251,7 @@
* audit_inode_child - collect inode info for created/removed objects
* @dname: inode's dentry name
* @inode: inode being audited
- * @pino: inode number of dentry parent
+ * @parent: inode of dentry parent
*
* For syscalls that create or remove filesystem objects, audit_inode
* can only collect information for the filesystem object's parent.
@@ -1262,7 +1262,7 @@
* unsuccessful attempts.
*/
void __audit_inode_child(const char *dname, const struct inode *inode,
- unsigned long pino)
+ const struct inode *parent)
{
int idx;
struct audit_context *context = current->audit_context;
@@ -1276,7 +1276,7 @@
if (!dname)
goto update_context;
for (idx = 0; idx < context->name_count; idx++)
- if (context->names[idx].ino == pino) {
+ if (context->names[idx].ino == parent->i_ino) {
const char *name = context->names[idx].name;
if (!name)
@@ -1304,6 +1304,16 @@
context->names[idx].ino = (unsigned long)-1;
else
audit_copy_inode(&context->names[idx], inode);
+
+ /* A parent was not found in audit_names, so copy the inode data for the
+ * provided parent. */
+ if (!found_name) {
+ idx = context->name_count++;
+#if AUDIT_DEBUG
+ context->ino_count++;
+#endif
+ audit_copy_inode(&context->names[idx], parent);
+ }
}
/**