muon-discover crashed with SIGSEGV in QString::~QString()

[Stanley C Slomberg]

Shows one update and there is no update

ProblemType: Crash
DistroRelease: Ubuntu 16.04
Package: plasma-discover 5.5.4-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-12.28-generic 4.4.4
Uname: Linux 4.4.0-12-generic x86_64
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
CurrentDesktop: KDE
Date: Tue Mar 15 07:40:33 2016
ExecutablePath: /usr/bin/muon-discover
InstallationDate: Installed on 2015-03-29 (351 days ago)
InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
ProcCmdline: /usr/bin/muon-discover --mode update
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f3550adfce3: mov (%rax),%edx
 PC (0x7f3550adfce3) ok
 source "(%rax)" (0x7f3540a659e0) not located in a known VMA region (needed readable region)!
 destination "%edx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: plasma-discover
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
 QHashData::free_helper(void (*)(QHashData::Node*)) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
 ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
 __run_exit_handlers (status=0, listp=0x7f35506d1698 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true) at exit.c:82
 __GI_exit (status=<optimized out>) at exit.c:104
Title: muon-discover crashed with SIGSEGV in QHashData::free_helper()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 QString::~QString() () from /tmp/apport_sandbox_9BCHMD/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
 QHashData::free_helper(void (*)(QHashData::Node*)) () from /tmp/apport_sandbox_9BCHMD/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
 (anonymous namespace)::Q_QGS_globalEngineCache::innerFunction()::Holder::~Holder() () from /tmp/apport_sandbox_9BCHMD/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
 __run_exit_handlers (status=0, listp=0x7f35506d1698 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true) at exit.c:82
 __GI_exit (status=<optimized out>) at exit.c:104

[Steve Beattie (sbeattie)]

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.

[Launchpad Janitor (janitor)]

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

[Matthias Klumpp (ximion)]

Can you please check if this issue still exists with the latest release of plasma-dicover in Xenial?

[Launchpad Janitor (janitor)]

[Expired for plasma-discover (Ubuntu) because there has been no activity for 60 days.]

[André Verwijs (verwijs)]

still exists with (k)ubuntu Artful Artvark (17.10) (version 5.10.3-0ubuntu1 )