https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7098

diff --git a/coders/tiff.c b/coders/tiff.c
index f835d9d4e8ac299259173598f162918772980b0d..1721fb04b617f31303013ad551257c6312804fff 100644 (file)
--- a/coders/tiff.c
+++ b/coders/tiff.c
@@ -1375,6 +1375,7 @@ RestoreMSCWarning
         TIFFClose(tiff);
         ThrowReaderException(CorruptImageError,"ImproperImageHeader");
       }
+    photometric=PHOTOMETRIC_RGB;
     (void) TIFFGetFieldDefaulted(tiff,TIFFTAG_PHOTOMETRIC,&photometric);
     if (sample_format == SAMPLEFORMAT_IEEEFP)
       (void) SetImageProperty(image,"quantum:format","floating-point",