I haven't seen a crash myself, just "garbage" results (mostly apt trying to use Translation-rowf%&$ files), but in all likelihood this is the result of gcc5 changing to a c++11-compatible std::string implementation – which the previous copy-on-write implementation isn't. apt was depending on this behavior to store for which language the Translation is aka the result of a X.c_str() call in a char* where X runs out of scope shortly after – but X was just a copy of a globally stored std::string (in that case in the deeps of _config). strlen on such a wild pointer has at least a chance of segfaulting…
See also #1486061. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apt in Ubuntu. https://bugs.launchpad.net/bugs/1497534 Title: apt-get crashed with SIGSEGV in strlen() Status in apt package in Ubuntu: Incomplete Status in apt source package in Wily: Incomplete Bug description: ubuntu 15.10 new upgrade ProblemType: Crash DistroRelease: Ubuntu 15.10 Package: apt 1.0.9.10ubuntu6 ProcVersionSignature: Ubuntu 4.2.0-10.11-generic 4.2.0 Uname: Linux 4.2.0-10-generic x86_64 ApportVersion: 2.18.1-0ubuntu1 Architecture: amd64 Date: Sat Sep 19 12:26:47 2015 ExecutablePath: /usr/bin/apt-get InstallationDate: Installed on 2014-12-30 (262 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) ProcCmdline: apt-get --yes autoremove ProcEnviron: PATH=(custom, no user) LANG=it_IT.UTF-8 LANGUAGE=it_IT SHELL=/bin/bash TERM=unknown SegvAnalysis: Segfault happened at: 0x7f73ded537fa <strlen+298>: movdqa (%rax),%xmm8 PC (0x7f73ded537fa) ok source "(%rax)" (0x5622126b7000) not located in a known VMA region (needed readable region)! destination "%xmm8" ok SegvReason: reading unknown VMA Signal: 11 SourcePackage: apt StacktraceTop: strlen () at ../sysdeps/x86_64/strlen.S:214 debTranslationsIndex::IndexURI[abi:cxx11](char const*) const () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.16 debTranslationsIndex::Exists() const () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.16 ?? () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.16 pkgCacheGenerator::MakeStatusCache(pkgSourceList&, OpProgress*, MMap**, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.16 Title: apt-get crashed with SIGSEGV in strlen() UpgradeStatus: Upgraded to wily on 2015-09-19 (0 days ago) UserGroups: To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1497534/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
