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authorAnton Blanchard <anton@samba.org>2005-09-05 22:05:26 -0400
committerPaul Mackerras <paulus@samba.org>2005-09-06 02:07:53 -0400
commit4721e2214b5fd6eca48caea76afb1bad3148930f (patch)
treed4212c465fb10a71022c755700a77bcf8b47af37 /arch/ppc64
parent2f4cf721eb2ff23b60af2932fd9fa4026f2a1164 (diff)
[PATCH] ppc64: poison initmem
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>
Diffstat (limited to 'arch/ppc64')
-rw-r--r--arch/ppc64/mm/init.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/ppc64/mm/init.c b/arch/ppc64/mm/init.c
index b3b1e9c1770a..a14ab87df491 100644
--- a/arch/ppc64/mm/init.c
+++ b/arch/ppc64/mm/init.c
@@ -392,6 +392,7 @@ void free_initmem(void)
392 392
393 addr = (unsigned long)__init_begin; 393 addr = (unsigned long)__init_begin;
394 for (; addr < (unsigned long)__init_end; addr += PAGE_SIZE) { 394 for (; addr < (unsigned long)__init_end; addr += PAGE_SIZE) {
395 memset((void *)addr, 0xcc, PAGE_SIZE);
395 ClearPageReserved(virt_to_page(addr)); 396 ClearPageReserved(virt_to_page(addr));
396 set_page_count(virt_to_page(addr), 1); 397 set_page_count(virt_to_page(addr), 1);
397 free_page(addr); 398 free_page(addr);