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Sami Tolvanen authored
e820__mapped_all() is passed as a callback to is_mmconf_reserved(), which expects a function of type: typedef bool (*check_reserved_t)(u64 start, u64 end, unsigned type); However, e820__mapped_all() accepts enum e820_type as the last argument and this type mismatch trips indirect call checking with Clang's Control-Flow Integrity (CFI). As is_mmconf_reserved() only passes enum e820_type values for the type argument, change the typedef and the unused type argument in is_acpi_reserved() to enum e820_type to fix the type mismatch. Reported-by:
Sedat Dilek <sedat.dilek@gmail.com> Suggested-by:
Borislav Petkov <bp@alien8.de> Signed-off-by:
Sami Tolvanen <samitolvanen@google.com> Signed-off-by:
Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20201130193900.456726-1-samitolvanen@google.com
83321c33Sami Tolvanen authorede820__mapped_all() is passed as a callback to is_mmconf_reserved(), which expects a function of type: typedef bool (*check_reserved_t)(u64 start, u64 end, unsigned type); However, e820__mapped_all() accepts enum e820_type as the last argument and this type mismatch trips indirect call checking with Clang's Control-Flow Integrity (CFI). As is_mmconf_reserved() only passes enum e820_type values for the type argument, change the typedef and the unused type argument in is_acpi_reserved() to enum e820_type to fix the type mismatch. Reported-by:
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