kprobes: Prohibit probing on CFI preamble symbol

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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.

Link: https://lore.kernel.org/all/168904024679.116016.18089228029322008512.stgit@devnote2/

Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>

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Masami Hiramatsu (Google) 2023-07-11 10:50:47 +09:00

parent 02ab7234fc

commit de02f2ac5d

1 changed files with 13 additions and 1 deletions

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kernel/kprobes.c

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