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| author | Anton Blanchard <anton@samba.org> | 2005-09-06 12:05:26 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2005-09-06 16:07:53 +1000 |
| commit | 4721e2214b5fd6eca48caea76afb1bad3148930f (patch) | |
| tree | d4212c465fb10a71022c755700a77bcf8b47af37 | |
| parent | 2f4cf721eb2ff23b60af2932fd9fa4026f2a1164 (diff) | |
| download | blackbird-op-linux-4721e2214b5fd6eca48caea76afb1bad3148930f.tar.gz blackbird-op-linux-4721e2214b5fd6eca48caea76afb1bad3148930f.zip | |
[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>
| -rw-r--r-- | arch/ppc64/mm/init.c | 1 |
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) 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); |
