tjLoadImage(): Fix OOB array access w/TJPF_UNKNOWN

Because the previous commit added a test for TJPF_UNKNOWN to tjunittest,
the ASAN CI build detected this issue.

diff --git a/turbojpeg.c b/turbojpeg.c
index 771b9046fe6904547b4095615ca05fb0190ba3ca..41d0611411ff6078c1853834ac830f1cd9b7ec62 100644 (file)
--- a/turbojpeg.c
+++ b/turbojpeg.c
@@ -1987,7 +1987,8 @@ DLLEXPORT unsigned char* DLLCALL tjLoadImage(const char *filename, int *width,
                retval=-1;  goto bailout;
        }
 
-       cinfo->in_color_space=pf2cs[*pixelFormat];
+       if(*pixelFormat==TJPF_UNKNOWN) cinfo->in_color_space=JCS_UNKNOWN;
+       else cinfo->in_color_space=pf2cs[*pixelFormat];
        if(tempc=='B')
        {
                if((src=jinit_read_bmp(cinfo, FALSE))==NULL)