gcc-plugins/stackleak: Avoid .head.text section
commite7d24c0aa8
upstream. The .head.text section carries the startup code that runs with the MMU off or with a translation of memory that deviates from the ordinary one. So avoid instrumentation with the stackleak plugin, which already avoids .init.text and .noinstr.text entirely. Fixes:48204aba80
("x86/sme: Move early SME kernel encryption handling into .head.text") Reported-by: kernel test robot <oliver.sang@intel.com> Closes: https://lore.kernel.org/oe-lkp/202403221630.2692c998-oliver.sang@intel.com Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Link: https://lore.kernel.org/r/20240328064256.2358634-2-ardb+git@google.com Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -467,6 +467,8 @@ static bool stackleak_gate(void)
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return false;
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if (STRING_EQUAL(section, ".entry.text"))
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return false;
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if (STRING_EQUAL(section, ".head.text"))
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return false;
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}
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return track_frame_size >= 0;
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