MIPS: VDSO: Prevent use of smp_processor_id()

[android-x86/kernel.git] / security / security.c

diff --git a/security/security.c b/security/security.c
index f825304..112df16 100644 (file)
--- a/security/security.c
+++ b/security/security.c
@@ -904,6 +904,13 @@ int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
 
 void security_cred_free(struct cred *cred)
 {
+       /*
+        * There is a failure case in prepare_creds() that
+        * may result in a call here with ->security being NULL.
+        */
+       if (unlikely(cred->security == NULL))
+               return;
+
        call_void_hook(cred_free, cred);
 }