e20f67026b
Input lines like 0x8000001E, 0, EAX, 31:0, Extended APIC ID where the short name is missing lead to a segfault because the loop takes the long name for the short name and tokens[5] becomes NULL which explodes later in strcpy(). Check its value too before further processing. Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Feng Tang <feng.tang@intel.com> Link: https://lkml.kernel.org/r/20210315125901.30315-1-bp@alien8.de