diff options
| -rw-r--r-- | source/fitz/load-tiff.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/source/fitz/load-tiff.c b/source/fitz/load-tiff.c index cfa8e2e2..9e37cc6f 100644 --- a/source/fitz/load-tiff.c +++ b/source/fitz/load-tiff.c @@ -619,6 +619,8 @@ fz_read_tiff_bytes(unsigned char *p, struct tiff *tiff, unsigned ofs, unsigned n static void fz_read_tiff_tag_value(unsigned *p, struct tiff *tiff, unsigned type, unsigned ofs, unsigned n) { + unsigned den; + tiff->rp = tiff->bp + ofs; if (tiff->rp > tiff->ep) tiff->rp = tiff->bp; @@ -629,7 +631,11 @@ fz_read_tiff_tag_value(unsigned *p, struct tiff *tiff, unsigned type, unsigned o { case TRATIONAL: *p = readlong(tiff); - *p = *p / readlong(tiff); + den = readlong(tiff); + if (den) + *p = *p / den; + else + *p = UINT_MAX; p ++; break; case TBYTE: *p++ = readbyte(tiff); break; |