gd-loop.patch

   1 --- libgd-2.1.0/src/gd_gif_in.c.orig    2013-07-04 16:17:44.855925413 +0200
   2 +++ libgd-2.1.0/src/gd_gif_in.c 2013-07-04 16:35:04.025881804 +0200
   3 @@ -498,15 +498,16 @@ LWZReadByte_(gdIOCtx *fd, LZW_STATIC_DAT
   4                         return sd->firstcode;
   5                 } else if(code == sd->end_code) {
   6                         int count;
   7 +                       int max_count = 1024;
   8                         unsigned char buf[260];
   9
  10                         if(*ZeroDataBlockP) {
  11                                 return -2;
  12                         }
  13
  14 -                       while((count = GetDataBlock(fd, buf, ZeroDataBlockP)) > 0);
  15 +                       while((count = GetDataBlock(fd, buf, ZeroDataBlockP)) > 0 && (--max_count >= 0));
  16
  17 -                       if(count != 0) {
  18 +                       if((count != 0) || (max_count < 0)) {
  19                                 return -2;
  20                         }
  21                 }