synapse crashed with SIGSEGV in __GI___libc_free()

Bug #1671885 reported by Serg on 2017-03-10
This bug affects 2 people
Affects Status Importance Assigned to Milestone
libzeitgeist (Ubuntu)
synapse (Ubuntu)

Bug Description


ProblemType: Crash
DistroRelease: Ubuntu 17.04
Package: synapse
ProcVersionSignature: Ubuntu 4.10.0-11.13-generic 4.10.1
Uname: Linux 4.10.0-11-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.4-0ubuntu2
Architecture: amd64
CurrentDesktop: MATE
Date: Fri Mar 10 19:07:46 2017
ExecutablePath: /usr/bin/synapse
InstallationDate: Installed on 2017-03-09 (1 days ago)
InstallationMedia: Ubuntu-MATE 17.04 "Zesty Zapus" - Alpha amd64 (20170125)
ProcCmdline: synapse
 PATH=(custom, no user)
 Segfault happened at: 0x7fb4b2545162 <__GI___libc_free+34>: mov -0x8(%rdi),%rax
 PC (0x7fb4b2545162) ok
 source "-0x8(%rdi)" (0x3fb0101010101008) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
 Stack memory exhausted (SP below stack segment)
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: synapse
 __GI___libc_free (mem=0x3fb0101010101010) at malloc.c:2963
 zeitgeist_symbol_info_register () from /usr/lib/x86_64-linux-gnu/
 zeitgeist_symbol_initialize_symbols () from /usr/lib/x86_64-linux-gnu/
 zeitgeist_symbol_get_all_children () from /usr/lib/x86_64-linux-gnu/
 zeitgeist_db_reader_get_where_clause_for_symbol () from /usr/lib/x86_64-linux-gnu/
Title: synapse crashed with SIGSEGV in __GI___libc_free()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

Serg (fatal222) wrote :

 __GI___libc_free (mem=0x3fb0101010101010) at malloc.c:2963
 zeitgeist_symbol_info_register () from /tmp/apport_sandbox_lYIZks/usr/lib/x86_64-linux-gnu/
 zeitgeist_symbol_initialize_symbols () from /tmp/apport_sandbox_lYIZks/usr/lib/x86_64-linux-gnu/
 zeitgeist_symbol_get_all_children () from /tmp/apport_sandbox_lYIZks/usr/lib/x86_64-linux-gnu/
 zeitgeist_db_reader_get_where_clause_for_symbol () from /tmp/apport_sandbox_lYIZks/usr/lib/x86_64-linux-gnu/

Changed in synapse (Ubuntu):
importance: Undecided → Medium
tags: removed: need-amd64-retrace

Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.

information type: Private Security → Public
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in synapse (Ubuntu):
status: New → Confirmed
To post a comment you must log in.
This report contains Public information  Edit
Everyone can see this information.

Other bug subscribers