Bug 705041

Created attachment 22230 [details]
poc

Summary : AddressSanitizer: SEGV on unknown address 0x20005fff83f3 (pc 0x0000004ce306 bp 0x7ffc434aa090 sp 0x7ffc434a9a80 T0)

- Version
```
➜  jbig2dec git:(master) ✗ ./jbig2dec -V
jbig2dec 0.19
```
At branch `a5b9b7cd`

- Steps to reproduce
```
 git clone https://github.com/ArtifexSoftware/jbig2dec.git                 
cd jbig2dec   
./autogen.sh
./configure CC=gcc CXX=g++ CFLAGS="-g -fsanitize=address" --disable-shared
make
./jbig2dec -d ./poc
```

- Asan
```
Sorry, segment dump not yet implemented
ASAN:DEADLYSIGNAL
=================================================================
==12044==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x5639ee9acb87 bp 0x7ffcbdfa7d70 sp 0x7ffcbdfa77d0 T0)
==12044==The signal is caused by a READ memory access.
==12044==Hint: address points to the zero page.
    #0 0x5639ee9acb86 in jbig2_error /home/lin/jbig2dec/jbig2.c:98
    #1 0x5639ee9a9255 in main /home/lin/jbig2dec/jbig2dec.c:781
    #2 0x7f6d77021c86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21c86)
    #3 0x5639ee9a5719 in _start (/home/lin/jbig2dec/jbig2dec+0xc719)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV /home/lin/jbig2dec/jbig2.c:98 in jbig2_error
==12044==ABORTING

```