apt-get crashed with SIGSEGV in pkgDepCache::CheckDep()

[Pierre]

"Ubuntu 11.10" is a guest OS running on top of VirtualBox 4.1.2

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: apt 0.8.16~exp5ubuntu11
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic x86_64
ApportVersion: 1.23-0ubuntu1
Architecture: amd64
CrashCounter: 1
Date: Wed Sep 21 19:08:59 2011
ExecutablePath: /usr/bin/apt-get
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110915.1)
ProcCmdline: apt-get upgrade
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 LANG=fr_FR.UTF-8
SegvAnalysis:
 Segfault happened at: 0x7f51b601af95 <_ZN11pkgDepCache8CheckDepEN8pkgCache11DepIteratorEiRNS0_11PkgIteratorE+581>: cmp %edx,0x14(%rax)
 PC (0x7f51b601af95) ok
 source "%edx" ok
 destination "0x14(%rax)" (0x7f51b7a68474) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: apt
StacktraceTop:
 pkgDepCache::CheckDep(pkgCache::DepIterator, int, pkgCache::PkgIterator&) () from /usr/lib/libapt-pkg.so.4.11
 pkgDepCache::DependencyState(pkgCache::DepIterator&) () from /usr/lib/libapt-pkg.so.4.11
 pkgDepCache::Update(OpProgress*) () from /usr/lib/libapt-pkg.so.4.11
 pkgDepCache::Init(OpProgress*) () from /usr/lib/libapt-pkg.so.4.11
 pkgCacheFile::BuildDepCache(OpProgress*) () from /usr/lib/libapt-pkg.so.4.11
Title: apt-get crashed with SIGSEGV in pkgDepCache::CheckDep()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 pkgDepCache::CheckDep (this=0x1f25bb0, Dep=..., Type=0, Res=...) at depcache.cc:372
 CheckDep (Type=0, Dep=<optimized out>, this=0x1f25bb0) at ../build/include/apt-pkg/depcache.h:315
 pkgDepCache::DependencyState (this=0x1f25bb0, D=...) at depcache.cc:606
 pkgDepCache::Update (this=0x1f25bb0, Prog=0x7fff7f47a590) at depcache.cc:679
 pkgDepCache::Init (this=0x1f25bb0, Prog=0x7fff7f47a590) at depcache.cc:158

[Launchpad Janitor (janitor)]

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

[Robert Roth (evfool)]

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.
---
Ubuntu Bug Squad volunteer triager
http://wiki.ubuntu.com/BugSquad

[LAZA (laza74)]

Happened for my today twice on a Internetcafé machine.

OS: Xubuntu 12.04, 32 Bit, up to date

[Julian Andres Klode (juliank)]

We believe that this bug is caused by an invalid cache file, broken hardware, or that it is fixed in recent APT versions, and I am thus closing the bug, so we can focus on others.