CVE-2017-10686.valgrind

==25244== Invalid read of size 1
==25244==    at 0x402F378: strlen (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so)
==25244==    by 0x805DA67: detoken (preproc.c:1305)
==25244==    by 0x806691D: pp_getline (preproc.c:5116)
==25244==    by 0x804C049: assemble_file (nasm.c:1233)
==25244==    by 0x804A0C8: main (nasm.c:453)
==25244==  Address 0x42aa8e8 is 0 bytes inside a block of size 7 free'd
==25244==    at 0x402D358: free (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so)
==25244==    by 0x804C8C3: nasm_free (malloc.c:77)
==25244==    by 0x805D98C: detoken (preproc.c:1284)
==25244==    by 0x806691D: pp_getline (preproc.c:5116)
==25244==    by 0x804C049: assemble_file (nasm.c:1233)
==25244==    by 0x804A0C8: main (nasm.c:453)
==25244==  Block was alloc'd at
==25244==    at 0x402C17C: malloc (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so)
==25244==    by 0x804C7F6: nasm_malloc (malloc.c:47)
==25244==    by 0x805D7E9: new_Token (preproc.c:1226)
==25244==    by 0x8066136: expand_mmacro (preproc.c:4867)
==25244==    by 0x8066BA7: pp_getline (preproc.c:5211)
==25244==    by 0x804C049: assemble_file (nasm.c:1233)
==25244==    by 0x804A0C8: main (nasm.c:453)