profile: fix stats and data leakage

[~andy/linux] / kernel / profile.c

diff --git a/kernel/profile.c b/kernel/profile.c
index a55d3a367ae86a95e3788e6162717188bb05ad90..dfadc5b729f194905ded52faef8b2d2564dfd2ce 100644 (file)
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -127,8 +127,10 @@ int __ref profile_init(void)
                return 0;
 
        prof_buffer = vmalloc(buffer_bytes);
-       if (prof_buffer)
+       if (prof_buffer) {
+               memset(prof_buffer, 0, buffer_bytes);
                return 0;
+       }
 
        free_cpumask_var(prof_cpu_mask);
        return -ENOMEM;