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[PATCH] i386/x86-64: Don't randomize stack top when no randomization personality is set

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Based on patch from Frank van Maarseveen <frankvm@frankvm.com>, but
extended.

Signed-off-by: Andi Kleen <ak@suse.de>
This commit is contained in:
Andi Kleen
2006-09-26 10:52:28 +02:00
committed by Andi Kleen
parent d5d9ca6d88
commit c16b63e09d
3 changed files with 5 additions and 3 deletions
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arch/x86_64/kernel/process.c
+1 -1
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@@ -845,7 +845,7 @@ int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
unsigned long arch_align_stack(unsigned long sp)
{
if (randomize_va_space)
if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
sp -= get_random_int() % 8192;
return sp & ~0xf;
}