The invalid write access occurs here: $ valgrind jasper --input white.jp2 --output white.ppm ==15473== Memcheck, a memory error detector ==15473== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al. ==15473== Using Valgrind-3.10.0 and LibVEX; rerun with -h for copyright info ==15473== Command: jasper --input white.jp2 --output white.ppm ==15473== ==15473== Invalid write of size 8 ==15473== at 0x4F1C3AA: dec_clnpass (in /usr/lib/x86_64-linux-gnu/libjasper.so.1.0.0) ==15473== by 0x4F19212: jpc_dec_decodecblk (in /usr/lib/x86_64-linux-gnu/libjasper.so.1.0.0) ==15473== by 0x4F18B30: jpc_dec_decodecblks (in /usr/lib/x86_64-linux-gnu/libjasper.so.1.0.0) ==15473== by 0x4E5BBC5: jpc_dec_tiledecode (in /usr/lib/x86_64-linux-gnu/libjasper.so.1.0.0) ==15473== by 0x4E5A5CC: jpc_dec_process_sod (in /usr/lib/x86_64-linux-gnu/libjasper.so.1.0.0) ==15473== by 0x4E59DF9: jpc_dec_decode (in /usr/lib/x86_64-linux-gnu/libjasper.so.1.0.0) ==15473== by 0x4E59A8D: jpc_decode (in /usr/lib/x86_64-linux-gnu/libjasper.so.1.0.0) ==15473== by 0x4E53D11: jp2_decode (in /usr/lib/x86_64-linux-gnu/libjasper.so.1.0.0) ==15473== by 0x4E450F8: jas_image_decode (in /usr/lib/x86_64-linux-gnu/libjasper.so.1.0.0) ==15473== by 0x401531: main (in /usr/bin/jasper) ==15473== Address 0x0 is not stack'd, malloc'd or (recently) free'd ==15473== ==15473== ==15473== Process terminating with default action of signal 11 (SIGSEGV) ==15473== Access not within mapped region at address 0x0 ==15473== at 0x4F1C3AA: dec_clnpass (in /usr/lib/x86_64-linux-gnu/libjasper.so.1.0.0) ==15473== by 0x4F19212: jpc_dec_decodecblk (in /usr/lib/x86_64-linux-gnu/libjasper.so.1.0.0) ==15473== by 0x4F18B30: jpc_dec_decodecblks (in /usr/lib/x86_64-linux-gnu/libjasper.so.1.0.0) ==15473== by 0x4E5BBC5: jpc_dec_tiledecode (in /usr/lib/x86_64-linux-gnu/libjasper.so.1.0.0) ==15473== by 0x4E5A5CC: jpc_dec_process_sod (in /usr/lib/x86_64-linux-gnu/libjasper.so.1.0.0) ==15473== by 0x4E59DF9: jpc_dec_decode (in /usr/lib/x86_64-linux-gnu/libjasper.so.1.0.0) ==15473== by 0x4E59A8D: jpc_decode (in /usr/lib/x86_64-linux-gnu/libjasper.so.1.0.0) ==15473== by 0x4E53D11: jp2_decode (in /usr/lib/x86_64-linux-gnu/libjasper.so.1.0.0) ==15473== by 0x4E450F8: jas_image_decode (in /usr/lib/x86_64-linux-gnu/libjasper.so.1.0.0) ==15473== by 0x401531: main (in /usr/bin/jasper) ==15473== If you believe this happened as a result of a stack ==15473== overflow in your program's main thread (unlikely but ==15473== possible), you can try to increase the size of the ==15473== main thread stack using the --main-stacksize= flag. ==15473== The main thread stack size used in this run was 8388608. ==15473== ==15473== HEAP SUMMARY: ==15473== in use at exit: 1,428,880,523 bytes in 3,817,584 blocks ==15473== total heap usage: 3,817,670 allocs, 86 frees, 1,428,978,051 bytes allocated ==15473== ==15473== LEAK SUMMARY: ==15473== definitely lost: 0 bytes in 0 blocks ==15473== indirectly lost: 0 bytes in 0 blocks ==15473== possibly lost: 0 bytes in 0 blocks ==15473== still reachable: 1,428,880,523 bytes in 3,817,584 blocks ==15473== suppressed: 0 bytes in 0 blocks ==15473== Rerun with --leak-check=full to see details of leaked memory ==15473== ==15473== For counts of detected and suppressed errors, rerun with: -v ==15473== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0) [1] 15473 segmentation fault valgrind jasper --input white.jp2 --output white.ppm
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