Heap-buffer-overflow in in opj_mqc_init_dec_common when disabling strict mode

[soiax]

This is similar testcase to #1533 but that didn't fix it.
Not sure about the root cause here.

POC: ./opj_decompress -allow-partial -i poc1.j2k -o ttt.png

[INFO] Start to read j2k main header (0).
[INFO] Main header has been correctly decoded.
[INFO] No decoded area parameters, set the decoded area to the whole image
[WARNING] Tile part length size inconsistent with stream length
[INFO] Stream reached its end !
[INFO] Header of tile 1 / 1 has been read.
[WARNING] read: segment too long (2457728) with max (3) for codeblock 3 (p=0, b=0, r=0, c=0)
=================================================================
==18975==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60200000026b at pc 0x7f0b6a246267 bp 0x7ffc259fd670 sp 0x7ffc259fd660
READ of size 2 at 0x60200000026b thread T0
    #0 0x7f0b6a246266 in memcpy /usr/include/x86_64-linux-gnu/bits/string_fortified.h:34
    #1 0x7f0b6a246266 in opj_mqc_init_dec_common /mnt/f/fuzz/openjpeg/openjpeg/src/lib/openjp2/mqc.c:434
    #2 0x7f0b6a246266 in opj_mqc_init_dec /mnt/f/fuzz/openjpeg/openjpeg/src/lib/openjp2/mqc.c:447
    #3 0x7f0b6a2814a1 in opj_t1_decode_cblk /mnt/f/fuzz/openjpeg/openjpeg/src/lib/openjp2/t1.c:2067
    #4 0x7f0b6a2814a1 in opj_t1_clbl_decode_processor /mnt/f/fuzz/openjpeg/openjpeg/src/lib/openjp2/t1.c:1703
    #5 0x7f0b6a1dd619 in opj_thread_pool_submit_job /mnt/f/fuzz/openjpeg/openjpeg/src/lib/openjp2/thread.c:835
    #6 0x7f0b6a28a79e in opj_t1_decode_cblks /mnt/f/fuzz/openjpeg/openjpeg/src/lib/openjp2/t1.c:1942
    #7 0x7f0b6a294e5f in opj_tcd_t1_decode /mnt/f/fuzz/openjpeg/openjpeg/src/lib/openjp2/tcd.c:2068
    #8 0x7f0b6a294e5f in opj_tcd_decode_tile /mnt/f/fuzz/openjpeg/openjpeg/src/lib/openjp2/tcd.c:1722
    #9 0x7f0b6a230b4b in opj_j2k_decode_tile /mnt/f/fuzz/openjpeg/openjpeg/src/lib/openjp2/j2k.c:9900
    #10 0x7f0b6a2312d2 in opj_j2k_decode_tiles /mnt/f/fuzz/openjpeg/openjpeg/src/lib/openjp2/j2k.c:11755
    #11 0x7f0b6a236ea2 in opj_j2k_exec /mnt/f/fuzz/openjpeg/openjpeg/src/lib/openjp2/j2k.c:9039
    #12 0x7f0b6a236ea2 in opj_j2k_decode /mnt/f/fuzz/openjpeg/openjpeg/src/lib/openjp2/j2k.c:12058
    #13 0x559e6b3acc5a in main /mnt/f/fuzz/openjpeg/openjpeg/src/bin/jp2/opj_decompress.c:1585
    #14 0x7f0b69e61082 in __libc_start_main ../csu/libc-start.c:308
    #15 0x559e6b3af04d in _start (/mnt/f/fuzz/openjpeg/openjpeg/asanbuild/bin/opj_decompress+0xc04d)

Address 0x60200000026b is a wild pointer.
SUMMARY: AddressSanitizer: heap-buffer-overflow /usr/include/x86_64-linux-gnu/bits/string_fortified.h:34 in memcpy
Shadow bytes around the buggy address:
  0x0c047fff7ff0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c047fff8000: fa fa 00 00 fa fa 00 00 fa fa 00 00 fa fa 00 fa
  0x0c047fff8010: fa fa fd fd fa fa fd fd fa fa fd fd fa fa fd fd
  0x0c047fff8020: fa fa fd fd fa fa fd fd fa fa fd fd fa fa fd fd
  0x0c047fff8030: fa fa 00 00 fa fa fd fd fa fa 00 00 fa fa 00 00
=>0x0c047fff8040: fa fa fd fa fa fa 03 fa fa fa fa fa fa[fa]fa fa
  0x0c047fff8050: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c047fff8060: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c047fff8070: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c047fff8080: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c047fff8090: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
  Shadow gap:              cc
==18975==ABORTING

[soiax]

poc.zip