From df818a52fb5e64c72b21029fb9ba80583106932c Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Mon, 12 Dec 2005 22:17:12 -0800 Subject: [PATCH] [PATCH] x86_64: Fix 32bit thread coredumps When a register set is passed in don't try to fix up the pointer. Noticed by Al Viro Signed-off-by: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86_64/ia32/ia32_binfmt.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/x86_64/ia32/ia32_binfmt.c b/arch/x86_64/ia32/ia32_binfmt.c index 830feb272eca..2b760d0d9ce2 100644 --- a/arch/x86_64/ia32/ia32_binfmt.c +++ b/arch/x86_64/ia32/ia32_binfmt.c @@ -217,8 +217,7 @@ elf_core_copy_task_fpregs(struct task_struct *tsk, struct pt_regs *regs, elf_fpr if (!tsk_used_math(tsk)) return 0; if (!regs) - regs = (struct pt_regs *)tsk->thread.rsp0; - --regs; + regs = ((struct pt_regs *)tsk->thread.rsp0) - 1; if (tsk == current) unlazy_fpu(tsk); set_fs(KERNEL_DS); -- 2.20.1