#14 Latest image to cause segfault

[Anonymous]

I've just started scanning spam images and have come
across an image that is causing gocr to segfault when
trying to scan it. I've applied all the patches and it
doesn't seem to help.

I'm running RHEL4 clone with latest packages.

[Nobody/Anonymous]

File causing segfault

[Joerg Schulenburg]

Logged In: YES
user_id=42379

Can you give more info?
Debugging it?
I can not reproduce the bug (dont have RHEL4). Is it
probably connected with isupper(>255)?

[Nobody/Anonymous]

Logged In: NO

I got it too with RH9. Quick debug shows the problem at line 829 in detect.c:

if (box2->y0-((box2->x1)*dy/dx)
< (JOB->res.lines.m1[box2->line]+JOB->res.lines.m2[box2->line])/2
&& islower(box2->tac[0])

box2->tac[0] at segfault is 0xfb00, so it's a problem with islower(>255)