| diff --git a/tools/gif2tiff.c b/tools/gif2tiff.c | |
| index 375b152..2731273 100644 | |
| --- a/tools/gif2tiff.c | |
| +++ b/tools/gif2tiff.c | |
| @@ -402,6 +402,10 @@ process(register int code, unsigned char** fill) | |
| } | |
| if (oldcode == -1) { | |
| + if (code >= clear) { | |
| + fprintf(stderr, "bad input: code=%d is larger than clear=%d\n",code, clear); | |
| + return 0; | |
| + } | |
| *(*fill)++ = suffix[code]; | |
| firstchar = oldcode = code; | |
| return 1; |