Invalid read in vg_replace_strmem.c:210

[wanghualei2]

command line:Thordec crash

valgrind command line to get detail: valgrind Thordec crash

click this to get crash file.

environment:ubuntu18.04,gcc7.5,g++7.5

==3841557== Memcheck, a memory error detector
==3841557== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==3841557== Using Valgrind-3.17.0 and LibVEX; rerun with -h for copyright info
==3841557== Command: ../../software/thor-master/build/Thordec crash
==3841557== Parent PID: 229797
==3841557==
==3841557== Invalid read of size 1
==3841557== at 0x403B006: rindex (vg_replace_strmem.c:210)
==3841557== by 0x10AB71: main (maindec.c:116)
==3841557== Address 0x0 is not stack'd, malloc'd or (recently) free'd
==3841557==
==3841557==
==3841557== Process terminating with default action of signal 11 (SIGSEGV): dumping core
==3841557== Access not within mapped region at address 0x0
==3841557== at 0x403B006: rindex (vg_replace_strmem.c:210)
==3841557== by 0x10AB71: main (maindec.c:116)
==3841557== If you believe this happened as a result of a stack
==3841557== overflow in your program's main thread (unlikely but
==3841557== possible), you can try to increase the size of the
==3841557== main thread stack using the --main-stacksize= flag.
==3841557== The main thread stack size used in this run was 8388608.
==3841557==
==3841557== HEAP SUMMARY:
==3841557== in use at exit: 552 bytes in 1 blocks
==3841557== total heap usage: 1 allocs, 0 frees, 552 bytes allocated
==3841557==
==3841557== LEAK SUMMARY:
==3841557== definitely lost: 0 bytes in 0 blocks
==3841557== indirectly lost: 0 bytes in 0 blocks
==3841557== possibly lost: 0 bytes in 0 blocks
==3841557== still reachable: 552 bytes in 1 blocks
==3841557== suppressed: 0 bytes in 0 blocks
==3841557== Rerun with --leak-check=full to see details of leaked memory
==3841557==
==3841557== For lists of detected and suppressed errors, rerun with: -s
==3841557== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)