[Bug 1763591] Re: dlmopen glib2.0 crashed in g_variant_lookup_value

[Sebastien Bacher]

Thank you for taking the time to report this bug and helping to make
Ubuntu better. The issue you are reporting is an upstream one and it
would be nice if somebody having it could send the bug to the developers
of the software on https://gitlab.gnome.org/GNOME/glib/issues/

** Changed in: glib2.0 (Ubuntu)
   Importance: Undecided => Low

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https://bugs.launchpad.net/bugs/1763591

Title:
  dlmopen glib2.0 crashed in g_variant_lookup_value

Status in glib2.0 package in Ubuntu:
  New

Bug description:
  when dlmopen glib2.0 and the program is linked with pthread, glib2.0 crashed in g_variant_lookup_value when dlmopen with 
  LM_ID_NEWLM

  following is the poc:

  #define _GNU_SOURCE
  #include <dlfcn.h>
  #include <pthread.h>
  #include <stdlib.h>
  #include <stdio.h>

  
  int main(int argc, char*argv[])
  {
    char buf[4096] = {0};
    pthread_attr_t attr;

    pthread_attr_init(&attr);
    snprintf(buf, sizeof(buf), "/lib/x86_64-linux-gnu/libglib-2.0.so.0.4800.2");
    dlmopen(-1, buf, RTLD_NOW|RTLD_LOCAL);
    return 0;
  }

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