kprobes, x86: Prohibit probing on thunk functions and restore

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thunk/restore functions are also used for tracing irqoff etc.
and those are involved in kprobe's exception handling.
Prohibit probing on them to avoid kernel crash.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20140417081726.26341.3872.stgit@ltc230.yrl.intra.hitachi.co.jp
Signed-off-by: Ingo Molnar <mingo@kernel.org>

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Masami Hiramatsu 2014-04-17 17:17:26 +09:00 • committed by Ingo Molnar

parent 8027197220

commit 98def1dedd

2 changed files with 5 additions and 1 deletions

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3

arch/x86/lib/thunk_32.S

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3

arch/x86/lib/thunk_64.S

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