Bug 692129

The customer reports an error when processing the attached with with 9.x, I'm not able to reproduce the problem, but Ken is.  Here are the options the customer is using:

-q
-dNOPAUSE
-dSAFER
-dBATCH
-dUseCropBox
-dConvertCMYKImagesToRGB=true
-dDOINTERPOLATE
-dTextAlphaBits=4
-dGraphicsAlphaBits=1
-dProcessColorModel=/DeviceRGB
-sDEVICE=png16m
-r100
-sstdout=%stderr
-sOutputFile=-
-dPrinted=false

and Ken's analysis:

For me the file seg faults on page 4 when -dDOINTERPOLATE is true, its in gsalloc.c, i_free_object(), line 779:

   finalize = pstype->finalize;

pstype is 0x00 which doesn't really look good.

Its called from s_IScale_release() :

   gs_free_object(mem, ss->dst, "image_scale dst");

It looks like something has written 0s all over ss->dst. One for Robin ?