On Thu, Mar 11, 2021 at 04:49:15PM -0800, Sami Tolvanen wrote: > With CONFIG_CFI_CLANG, the compiler replaces function address > references with the address of the function's CFI jump table > entry. This means that __pa_symbol(function) returns the physical > address of the jump table entry, which can lead to address space > confusion as the jump table points to the function's virtual > address. Therefore, use the __pa_function() macro to ensure we are > always taking the address of the actual function instead. > > Signed-off-by: Sami Tolvanen <samitolvanen@xxxxxxxxxx> Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> -- Kees Cook
