arch/x86/smbios: Check str for NULL in smbios_add_string()
Signed-off-by: Maximilian Brune <maximilian.brune@9elements.com>
Change-Id: Ic228b869aea362c1f07e0808c2735ff3b285a6bd
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73980
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
diff --git a/src/arch/x86/smbios.c b/src/arch/x86/smbios.c
index 188fb42..1ec0ad2 100644
--- a/src/arch/x86/smbios.c
+++ b/src/arch/x86/smbios.c
@@ -45,7 +45,7 @@
* Return 0 as required for empty strings.
* See Section 6.1.3 "Text Strings" of the SMBIOS specification.
*/
- if (*str == '\0')
+ if (str == NULL || *str == '\0')
return 0;
for (;;) {