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[PATCH] ppc64: poison initmem

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Poison initmem after we free it so we catch use after free issues.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Anton Blanchard 2005-09-06 12:05:26 +10:00 committed by Paul Mackerras
parent 2f4cf721eb
commit 4721e2214b
1 changed files with 1 additions and 0 deletions
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arch/ppc64/mm/init.c
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@ -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);