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commitee8b8f5d83upstream. After calling uefi interface allocate_pool to apply for memory, we should clear 0 to prevent the possibility of using random values. Signed-off-by: Qiang Ma <maqianga@uniontech.com> Cc: <stable@vger.kernel.org> # v6.6+ Fixes:732ea9db9d("efi: libstub: Move screen_info handling to common code") Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>