For reference, the attached minidump a SIGSEGV coming from libgtk3-nocsd.so.0.
Blind guess, can you check the contents of ~/.local/share/Steam/ubuntu12_32/steam-runtime/pinned_libs_*, then move/remove the pinned_libs_* folders so that Steam will regenerate them on the next run?
Just rebooting ubuntu solved this problem.
Nothing extracted yet.
Your system information
Please describe your issue in as much detail as possible:
After typing in the password and the verification code, steam directly exits.
The last several lines of output is:
Here is the minidump file:
dump.zip