tree 9a5488e27fa1bdf55dfdcb2c53bc0f328fc92c41
parent 5d01410fe4d92081f349b013a2e7a95429e4f2c9
author Andy Lutomirski <luto@amacapital.net> 1416879546 -0800
committer Ingo Molnar <mingo@kernel.org> 1416896815 +0100

x86/asm/traps: Disable tracing and kprobes in fixup_bad_iret and sync_regs

These functions can be executed on the int3 stack, so kprobes
are dangerous. Tracing is probably a bad idea, too.

Fixes: b645af2d5905 ("x86_64, traps: Rework bad_iret")
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Cc: <stable@vger.kernel.org> # Backport as far back as it would apply
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/50e33d26adca60816f3ba968875801652507d0c4.1416870125.git.luto@amacapital.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>