audit: use inline function to set audit context

Recognizing that the audit context is an internal audit value, use an
access function to set the audit context pointer for the task
rather than reaching directly into the task struct to set it.

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
[PM: merge fuzz in audit.h]
Signed-off-by: Paul Moore <paul@paul-moore.com>

1 files changed, 3 insertions, 4 deletions

diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index fce4acba576d..cbab0da86d15 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -865,7 +865,7 @@ static inline struct audit_context *audit_take_context(struct task_struct *tsk,
                 audit_filter_inodes(tsk, context);
         }
 
-        tsk->audit_context = NULL;
+        audit_set_context(tsk, NULL);
         return context;
 }
 
@@ -952,7 +952,7 @@ int audit_alloc(struct task_struct *tsk)
         }
         context->filterkey = key;
 
-        tsk->audit_context  = context;
+        audit_set_context(tsk, context);
         set_tsk_thread_flag(tsk, TIF_SYSCALL_AUDIT);
         return 0;
 }
@@ -1554,7 +1554,6 @@ void __audit_syscall_entry(int major, unsigned long a1, unsigned long a2,
  */
 void __audit_syscall_exit(int success, long return_code)
 {
-        struct task_struct *tsk = current;
         struct audit_context *context;
 
         if (success)
@@ -1589,7 +1588,7 @@ void __audit_syscall_exit(int success, long return_code)
                 kfree(context->filterkey);
                 context->filterkey = NULL;
         }
-        tsk->audit_context = context;
+        audit_set_context(current, context);
 }
 
 static inline void handle_one(const struct inode *inode)