Commit 16a2164b authored by Hugh Dickins's avatar Hugh Dickins Committed by Linus Torvalds
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profile: fix stats and data leakage

If the kernel is large or the profiling step small, /proc/profile
leaks data and readprofile shows silly stats, until readprofile -r
has reset the buffer: clear the prof_buffer when it is vmalloc()ed.

Signed-off-by: default avatarHugh Dickins <>
Signed-off-by: default avatarLinus Torvalds <>
parent bfcc6e2e
......@@ -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;
return -ENOMEM;
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