preproc: Don't access offsting byte on unterminated strings

https://bugzilla.nasm.us/show_bug.cgi?id=3392446 Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
netwide-assembler · Oct 22, 2017 · 3144e84 · 3144e84
1 parent 53259e8
commit 3144e84
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/asm/preproc.c b/asm/preproc.c
@@ -948,7 +948,9 @@ static Token *tokenize(char *line)
                     case '\'':
                     case '\"':
                     case '`':
-                        p = nasm_skip_string(p - 1) + 1;
+                        p = nasm_skip_string(p - 1);
+                        if (*p)
+                            p++;
                         break;
                     default:
                         break;