https://github.com/LibRaw/LibRaw/commit/d13e8f6d1e987b7491182040a188c16a395f1d21 Index: rawtherapee-5.2/rtengine/dcraw.c =================================================================== --- rawtherapee-5.2/rtengine/dcraw.c +++ rawtherapee-5.2/rtengine/dcraw.c 2017-09-27 15:00:47.402116860 -0400 @@ -2589,8 +2589,15 @@ len = MIN (256, width-col); ret = kodak_65000_decode (buf, len); for (i=0; i < len; i++) - if ((RAW(row,col+i) = curve[ret ? buf[i] : - (pred[i & 1] += buf[i])]) >> 12) derror(); + { + int idx = ret ? buf[i] : (pred[i & 1] += buf[i]); + if(idx >=0 && idx <= 0xffff) + { + if ((RAW(row,col+i) = curve[idx]) >> 12) derror(); + } + else + derror(); + } } }