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um: don't leak floating point state and segment registers on execve()
author
Al Viro
<viro@zeniv.linux.org.uk>
Thu, 6 Sep 2012 03:20:33 +0000
(23:20 -0400)
committer
Richard Weinberger
<richard@nod.at>
Thu, 27 Sep 2012 16:04:38 +0000
(18:04 +0200)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
arch/um/kernel/exec.c
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diff --git
a/arch/um/kernel/exec.c
b/arch/um/kernel/exec.c
index
4cab0c7
..
8c82786
100644
(file)
--- a/
arch/um/kernel/exec.c
+++ b/
arch/um/kernel/exec.c
@@
-39,6
+39,7
@@
void flush_thread(void)
void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp)
{
+ get_safe_registers(regs->regs.gp, regs->regs.fp);
PT_REGS_IP(regs) = eip;
PT_REGS_SP(regs) = esp;
current->ptrace &= ~PT_DTRACE;