tree d4212c465fb10a71022c755700a77bcf8b47af37
parent 2f4cf721eb2ff23b60af2932fd9fa4026f2a1164
author Anton Blanchard <[EMAIL PROTECTED]> Tue, 06 Sep 2005 12:05:26 +1000
committer Paul Mackerras <[EMAIL PROTECTED]> Tue, 06 Sep 2005 16:07:53 +1000
[PATCH] ppc64: poison initmem
Poison initmem after we free it so we catch use after free issues.
Signed-off-by: Anton Blanchard <[EMAIL PROTECTED]>
Signed-off-by: Paul Mackerras <[EMAIL PROTECTED]>
arch/ppc64/mm/init.c | 1 +
1 files changed, 1 insertion(+)
diff --git a/arch/ppc64/mm/init.c b/arch/ppc64/mm/init.c
--- a/arch/ppc64/mm/init.c
+++ b/arch/ppc64/mm/init.c
@@ -392,6 +392,7 @@ void free_initmem(void)
addr = (unsigned long)__init_begin;
for (; addr < (unsigned long)__init_end; addr += PAGE_SIZE) {
+ memset((void *)addr, 0xcc, PAGE_SIZE);
ClearPageReserved(virt_to_page(addr));
set_page_count(virt_to_page(addr), 1);
free_page(addr);
-
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