kasan: report only the first error by default

[karo-tx-linux.git] / lib / test_kasan.c

diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 0b1d3140fbb87738ec37031997075e50c5670575..a25c9763fce19f17c723b9db3645ae93ba47dcb6 100644 (file)
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -20,6 +20,7 @@
 #include <linux/string.h>
 #include <linux/uaccess.h>
 #include <linux/module.h>
+#include <linux/kasan.h>
 
 /*
  * Note: test functions are marked noinline so that their names appear in
@@ -474,6 +475,12 @@ static noinline void __init use_after_scope_test(void)
 
 static int __init kmalloc_tests_init(void)
 {
+       /*
+        * Temporarily enable multi-shot mode. Otherwise, we'd only get a
+        * report for the first case.
+        */
+       bool multishot = kasan_save_enable_multi_shot();
+
        kmalloc_oob_right();
        kmalloc_oob_left();
        kmalloc_node_oob_right();
@@ -499,6 +506,9 @@ static int __init kmalloc_tests_init(void)
        ksize_unpoisons_memory();
        copy_user_test();
        use_after_scope_test();
+
+       kasan_restore_multi_shot(multishot);
+
        return -EAGAIN;
 }