Messages in this thread | | | Date | Fri, 28 Jul 2023 18:49:13 -0400 | From | Steven Rostedt <> | Subject | Re: [PATCH v2 1/2] kprobes: Prohibit probing on CFI preamble symbol |
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On Tue, 11 Jul 2023 10:50:47 +0900 "Masami Hiramatsu (Google)" <mhiramat@kernel.org> wrote:
> From: Masami Hiramatsu (Google) <mhiramat@kernel.org> > > Do not allow to probe on "__cfi_" or "__pfx_" started symbol, because those > are used for CFI and not executed. Probing it will break the CFI. > > Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
-- Steve
> --- > Changes in v2: > - Check "__pfx_" prefix functions too. > - Make the check unconditional. > --- > kernel/kprobes.c | 14 +++++++++++++- > 1 file changed, 13 insertions(+), 1 deletion(-) >
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