Bug#1001019: apt: "apt install sphinx/sid" segfaults in CacheSetHelperAPTGet::tryVirtualPackage

To: submit@bugs.debian.org
Subject: Bug#1001019: apt: "apt install sphinx/sid" segfaults in CacheSetHelperAPTGet::tryVirtualPackage
From: Dmitry Shachnev <mitya57@debian.org>
Date: Thu, 2 Dec 2021 22:03:06 +0300
Message-id: <[🔎] YakYavEiOCTDD39X@mitya57.me>
Reply-to: Dmitry Shachnev <mitya57@debian.org>, 1001019@bugs.debian.org

Package: apt
Version: 2.3.13
Severity: normal

Dear Maintainer,

Today I ran "apt install sphinx/sid" and it segfaulted. Probably caused by
the fact that sphinx is a virtual package.

Stacktrace is attached.

-- Package-specific info:

-- apt-config dump --

APT "";
APT::Architecture "amd64";
APT::Build-Essential "";
APT::Build-Essential:: "build-essential";
APT::Install-Recommends "1";
APT::Install-Suggests "0";
APT::Sandbox "";
APT::Sandbox::User "_apt";
APT::Authentication "";
APT::Authentication::TrustCDROM "true";
APT::NeverAutoRemove "";
APT::NeverAutoRemove:: "^firmware-linux.*";
APT::NeverAutoRemove:: "^linux-firmware$";
APT::NeverAutoRemove:: "^linux-image-[a-z0-9]*$";
APT::NeverAutoRemove:: "^linux-image-[a-z0-9]*-[a-z0-9]*$";
APT::NeverAutoRemove:: "^postgresql.*-12";
APT::NeverAutoRemove:: "^postgresql.*-14";
APT::VersionedKernelPackages "";
APT::VersionedKernelPackages:: "linux-.*";
APT::VersionedKernelPackages:: "kfreebsd-.*";
APT::VersionedKernelPackages:: "gnumach-.*";
APT::VersionedKernelPackages:: ".*-modules";
APT::VersionedKernelPackages:: ".*-kernel";
APT::Never-MarkAuto-Sections "";
APT::Never-MarkAuto-Sections:: "metapackages";
APT::Never-MarkAuto-Sections:: "contrib/metapackages";
APT::Never-MarkAuto-Sections:: "non-free/metapackages";
APT::Never-MarkAuto-Sections:: "restricted/metapackages";
APT::Never-MarkAuto-Sections:: "universe/metapackages";
APT::Never-MarkAuto-Sections:: "multiverse/metapackages";
APT::Move-Autobit-Sections "";
APT::Move-Autobit-Sections:: "oldlibs";
APT::Move-Autobit-Sections:: "contrib/oldlibs";
APT::Move-Autobit-Sections:: "non-free/oldlibs";
APT::Move-Autobit-Sections:: "restricted/oldlibs";
APT::Move-Autobit-Sections:: "universe/oldlibs";
APT::Move-Autobit-Sections:: "multiverse/oldlibs";
APT::LastInstalledKernel "5.15.0-1-amd64";
APT::Update "";
APT::Update::Post-Invoke-Success "";
APT::Update::Post-Invoke-Success:: "/usr/bin/test -e /usr/share/dbus-1/system-services/org.freedesktop.PackageKit.service && /usr/bin/test -S /var/run/dbus/system_bus_socket && /usr/bin/gdbus call --system --dest org.freedesktop.PackageKit --object-path /org/freedesktop/PackageKit --timeout 4 --method org.freedesktop.PackageKit.StateHasChanged cache-update > /dev/null; /bin/echo > /dev/null";
APT::Architectures "";
APT::Architectures:: "amd64";
APT::Compressor "";
APT::Compressor::. "";
APT::Compressor::.::Name ".";
APT::Compressor::.::Extension "";
APT::Compressor::.::Binary "";
APT::Compressor::.::Cost "0";
APT::Compressor::zstd "";
APT::Compressor::zstd::Name "zstd";
APT::Compressor::zstd::Extension ".zst";
APT::Compressor::zstd::Binary "zstd";
APT::Compressor::zstd::Cost "60";
APT::Compressor::zstd::CompressArg "";
APT::Compressor::zstd::CompressArg:: "-19";
APT::Compressor::zstd::UncompressArg "";
APT::Compressor::zstd::UncompressArg:: "-d";
APT::Compressor::lz4 "";
APT::Compressor::lz4::Name "lz4";
APT::Compressor::lz4::Extension ".lz4";
APT::Compressor::lz4::Binary "lz4";
APT::Compressor::lz4::Cost "50";
APT::Compressor::lz4::CompressArg "";
APT::Compressor::lz4::CompressArg:: "-1";
APT::Compressor::lz4::UncompressArg "";
APT::Compressor::lz4::UncompressArg:: "-d";
APT::Compressor::gzip "";
APT::Compressor::gzip::Name "gzip";
APT::Compressor::gzip::Extension ".gz";
APT::Compressor::gzip::Binary "gzip";
APT::Compressor::gzip::Cost "100";
APT::Compressor::gzip::CompressArg "";
APT::Compressor::gzip::CompressArg:: "-6n";
APT::Compressor::gzip::UncompressArg "";
APT::Compressor::gzip::UncompressArg:: "-d";
APT::Compressor::xz "";
APT::Compressor::xz::Name "xz";
APT::Compressor::xz::Extension ".xz";
APT::Compressor::xz::Binary "xz";
APT::Compressor::xz::Cost "200";
APT::Compressor::xz::CompressArg "";
APT::Compressor::xz::CompressArg:: "-6";
APT::Compressor::xz::UncompressArg "";
APT::Compressor::xz::UncompressArg:: "-d";
APT::Compressor::bzip2 "";
APT::Compressor::bzip2::Name "bzip2";
APT::Compressor::bzip2::Extension ".bz2";
APT::Compressor::bzip2::Binary "bzip2";
APT::Compressor::bzip2::Cost "300";
APT::Compressor::bzip2::CompressArg "";
APT::Compressor::bzip2::CompressArg:: "-6";
APT::Compressor::bzip2::UncompressArg "";
APT::Compressor::bzip2::UncompressArg:: "-d";
APT::Compressor::lzma "";
APT::Compressor::lzma::Name "lzma";
APT::Compressor::lzma::Extension ".lzma";
APT::Compressor::lzma::Binary "xz";
APT::Compressor::lzma::Cost "400";
APT::Compressor::lzma::CompressArg "";
APT::Compressor::lzma::CompressArg:: "--format=lzma";
APT::Compressor::lzma::CompressArg:: "-6";
APT::Compressor::lzma::UncompressArg "";
APT::Compressor::lzma::UncompressArg:: "--format=lzma";
APT::Compressor::lzma::UncompressArg:: "-d";
Dir "/";
Dir::State "var/lib/apt";
Dir::State::lists "lists/";
Dir::State::cdroms "cdroms.list";
Dir::State::extended_states "extended_states";
Dir::State::status "/var/lib/dpkg/status";
Dir::Cache "var/cache/apt";
Dir::Cache::archives "archives/";
Dir::Cache::srcpkgcache "srcpkgcache.bin";
Dir::Cache::pkgcache "pkgcache.bin";
Dir::Etc "etc/apt";
Dir::Etc::sourcelist "sources.list";
Dir::Etc::sourceparts "sources.list.d";
Dir::Etc::main "apt.conf";
Dir::Etc::netrc "auth.conf";
Dir::Etc::netrcparts "auth.conf.d";
Dir::Etc::parts "apt.conf.d";
Dir::Etc::preferences "preferences";
Dir::Etc::preferencesparts "preferences.d";
Dir::Etc::trusted "trusted.gpg";
Dir::Etc::trustedparts "trusted.gpg.d";
Dir::Etc::apt-listchanges-main "listchanges.conf";
Dir::Etc::apt-listchanges-parts "listchanges.conf.d";
Dir::Bin "";
Dir::Bin::methods "/usr/lib/apt/methods";
Dir::Bin::solvers "";
Dir::Bin::solvers:: "/usr/lib/apt/solvers";
Dir::Bin::planners "";
Dir::Bin::planners:: "/usr/lib/apt/planners";
Dir::Bin::dpkg "/usr/bin/dpkg";
Dir::Bin::gzip "/bin/gzip";
Dir::Bin::bzip2 "/bin/bzip2";
Dir::Bin::xz "/usr/bin/xz";
Dir::Bin::lz4 "/usr/bin/lz4";
Dir::Bin::zstd "/usr/bin/zstd";
Dir::Bin::lzma "/usr/bin/xz";
Dir::Media "";
Dir::Media::MountPath "/media/cdrom";
Dir::Log "var/log/apt";
Dir::Log::Terminal "term.log";
Dir::Log::History "history.log";
Dir::Log::Planner "eipp.log.xz";
Dir::Ignore-Files-Silently "";
Dir::Ignore-Files-Silently:: "~$";
Dir::Ignore-Files-Silently:: "\.disabled$";
Dir::Ignore-Files-Silently:: "\.bak$";
Dir::Ignore-Files-Silently:: "\.dpkg-[a-z]+$";
Dir::Ignore-Files-Silently:: "\.ucf-[a-z]+$";
Dir::Ignore-Files-Silently:: "\.save$";
Dir::Ignore-Files-Silently:: "\.orig$";
Dir::Ignore-Files-Silently:: "\.distUpgrade$";
Acquire "";
Acquire::AllowInsecureRepositories "0";
Acquire::AllowWeakRepositories "0";
Acquire::AllowDowngradeToInsecureRepositories "0";
Acquire::cdrom "";
Acquire::cdrom::mount "/media/cdrom";
Acquire::IndexTargets "";
Acquire::IndexTargets::deb "";
Acquire::IndexTargets::deb::Packages "";
Acquire::IndexTargets::deb::Packages::MetaKey "$(COMPONENT)/binary-$(ARCHITECTURE)/Packages";
Acquire::IndexTargets::deb::Packages::flatMetaKey "Packages";
Acquire::IndexTargets::deb::Packages::ShortDescription "Packages";
Acquire::IndexTargets::deb::Packages::Description "$(RELEASE)/$(COMPONENT) $(ARCHITECTURE) Packages";
Acquire::IndexTargets::deb::Packages::flatDescription "$(RELEASE) Packages";
Acquire::IndexTargets::deb::Packages::Optional "0";
Acquire::IndexTargets::deb::Translations "";
Acquire::IndexTargets::deb::Translations::MetaKey "$(COMPONENT)/i18n/Translation-$(LANGUAGE)";
Acquire::IndexTargets::deb::Translations::flatMetaKey "$(LANGUAGE)";
Acquire::IndexTargets::deb::Translations::ShortDescription "Translation-$(LANGUAGE)";
Acquire::IndexTargets::deb::Translations::Description "$(RELEASE)/$(COMPONENT) Translation-$(LANGUAGE)";
Acquire::IndexTargets::deb::Translations::flatDescription "$(RELEASE) Translation-$(LANGUAGE)";
Acquire::IndexTargets::deb-src "";
Acquire::IndexTargets::deb-src::Sources "";
Acquire::IndexTargets::deb-src::Sources::MetaKey "$(COMPONENT)/source/Sources";
Acquire::IndexTargets::deb-src::Sources::flatMetaKey "Sources";
Acquire::IndexTargets::deb-src::Sources::ShortDescription "Sources";
Acquire::IndexTargets::deb-src::Sources::Description "$(RELEASE)/$(COMPONENT) Sources";
Acquire::IndexTargets::deb-src::Sources::flatDescription "$(RELEASE) Sources";
Acquire::IndexTargets::deb-src::Sources::Optional "0";
Acquire::Changelogs "";
Acquire::Changelogs::URI "";
Acquire::Changelogs::URI::Origin "";
Acquire::Changelogs::URI::Origin::Debian "https://metadata.ftp-master.debian.org/changelogs/@CHANGEPATH@_changelog";;
Acquire::Changelogs::URI::Origin::Ubuntu "https://changelogs.ubuntu.com/changelogs/pool/@CHANGEPATH@/changelog";;
Acquire::Changelogs::AlwaysOnline "";
Acquire::Changelogs::AlwaysOnline::Origin "";
Acquire::Changelogs::AlwaysOnline::Origin::Ubuntu "1";
Acquire::Languages "";
Acquire::Languages:: "en";
Acquire::Languages:: "none";
Acquire::CompressionTypes "";
Acquire::CompressionTypes::xz "xz";
Acquire::CompressionTypes::bz2 "bzip2";
Acquire::CompressionTypes::lzma "lzma";
Acquire::CompressionTypes::gz "gzip";
Acquire::CompressionTypes::lz4 "lz4";
Acquire::CompressionTypes::zst "zstd";
DPkg "";
DPkg::Path "/usr/sbin:/usr/bin:/sbin:/bin";
DPkg::Pre-Install-Pkgs "";
DPkg::Pre-Install-Pkgs:: "/usr/bin/apt-listbugs apt";
DPkg::Pre-Install-Pkgs:: "/usr/bin/apt-listchanges --apt || test $? -lt 10";
DPkg::Pre-Install-Pkgs:: "/usr/sbin/dpkg-preconfigure --apt || true";
DPkg::Tools "";
DPkg::Tools::Options "";
DPkg::Tools::Options::/usr/bin/apt-listbugs "";
DPkg::Tools::Options::/usr/bin/apt-listbugs::Version "3";
DPkg::Tools::Options::/usr/bin/apt-listbugs::InfoFD "20";
DPkg::Tools::Options::/usr/bin/apt-listchanges "";
DPkg::Tools::Options::/usr/bin/apt-listchanges::Version "2";
DPkg::Tools::Options::/usr/bin/apt-listchanges::InfoFD "20";
DPkg::Post-Invoke "";
DPkg::Post-Invoke:: "/usr/bin/test -e /usr/share/dbus-1/system-services/org.freedesktop.PackageKit.service && /usr/bin/test -S /var/run/dbus/system_bus_socket && /usr/bin/gdbus call --system --dest org.freedesktop.PackageKit --object-path /org/freedesktop/PackageKit --timeout 4 --method org.freedesktop.PackageKit.StateHasChanged cache-update > /dev/null; /bin/echo > /dev/null";
DPkg::Post-Invoke:: "if test -x /usr/share/dhelp/scripts/index-deferred; then /usr/share/dhelp/scripts/index-deferred; fi";
Aptitude "";
Aptitude::Get-Root-Command "sudo:/usr/bin/sudo";
AptListbugs "";
AptListbugs::Severities "critical,grave,serious";
Binary "apt-config";
Binary::apt "";
Binary::apt::APT "";
Binary::apt::APT::Color "1";
Binary::apt::APT::Cache "";
Binary::apt::APT::Cache::Show "";
Binary::apt::APT::Cache::Show::Version "2";
Binary::apt::APT::Cache::AllVersions "0";
Binary::apt::APT::Cache::ShowVirtuals "1";
Binary::apt::APT::Cache::Search "";
Binary::apt::APT::Cache::Search::Version "2";
Binary::apt::APT::Cache::ShowDependencyType "1";
Binary::apt::APT::Cache::ShowVersion "1";
Binary::apt::APT::Get "";
Binary::apt::APT::Get::Upgrade-Allow-New "1";
Binary::apt::APT::Get::Update "";
Binary::apt::APT::Get::Update::InteractiveReleaseInfoChanges "1";
Binary::apt::APT::Cmd "";
Binary::apt::APT::Cmd::Show-Update-Stats "1";
Binary::apt::APT::Cmd::Pattern-Only "1";
Binary::apt::APT::Keep-Downloaded-Packages "0";
Binary::apt::DPkg "";
Binary::apt::DPkg::Progress-Fancy "1";
Binary::apt::DPkg::Lock "";
Binary::apt::DPkg::Lock::Timeout "-1";
CommandLine "";
CommandLine::AsString "apt-config dump";

-- /etc/apt/preferences --

Package: *
Pin: release a=unstable
Pin-Priority: 450

Package: *
Pin: release a=unstable-debug
Pin-Priority: 450

Package: *
Pin: release a=experimental
Pin-Priority: 105

-- /etc/apt/preferences.d/apt-listbugs --


-- /etc/apt/sources.list --

deb http://deb.debian.org/debian/ testing main
deb http://deb.debian.org/debian/ sid main non-free contrib
deb http://deb.debian.org/debian/ experimental main non-free contrib

deb-src http://deb.debian.org/debian/ testing main
deb-src http://deb.debian.org/debian/ sid main non-free contrib
deb-src http://deb.debian.org/debian/ experimental main non-free contrib

deb http://debug.mirrors.debian.org/debian-debug/ testing-debug main
deb http://debug.mirrors.debian.org/debian-debug/ sid-debug main
deb http://debug.mirrors.debian.org/debian-debug/ experimental-debug main

#deb http://incoming.debian.org/debian-buildd buildd-unstable main

-- (/etc/apt/sources.list.d/google-chrome.list present, but not submitted) --


-- (/etc/apt/sources.list.d/skype-stable.list present, but not submitted) --


-- System Information:
Debian Release: bookworm/sid
  APT prefers testing-debug
  APT policy: (500, 'testing-debug'), (500, 'testing'), (450, 'unstable-debug'), (450, 'unstable'), (105, 'experimental'), (1, 'experimental-debug')
Architecture: amd64 (x86_64)

Kernel: Linux 5.15.0-1-amd64 (SMP w/4 CPU threads)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages apt depends on:
ii  adduser                 3.118
ii  debian-archive-keyring  2021.1.1
ii  gpgv                    2.2.27-2
ii  libapt-pkg6.0           2.3.13
ii  libc6                   2.32-4
ii  libgcc-s1               11.2.0-10
ii  libgnutls30             3.7.2-2
ii  libseccomp2             2.5.3-2
ii  libstdc++6              11.2.0-10
ii  libsystemd0             249.7-1

Versions of packages apt recommends:
ii  ca-certificates  20210119

Versions of packages apt suggests:
pn  apt-doc         <none>
ii  dpkg-dev        1.20.9
ii  gnupg           2.2.27-2
ii  powermgmt-base  1.36
ii  synaptic        0.90.2+b1

-- no debconf information

--
Dmitry Shachnev

GNU gdb (Debian 10.1-2) 10.1.90.20210103-git
Copyright (C) 2021 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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For bug reporting instructions, please see:
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For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from apt...
Reading symbols from /usr/lib/debug/.build-id/97/c5748404dbeb7f6c59ef60740cdb53cd1c02c5.debug...
(gdb) Starting program: /usr/bin/apt install sphinx/sid
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Reading package lists...
Building dependency tree...
Reading state information...

Program received signal SIGSEGV, Segmentation fault.
__strlen_avx2 () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:65
(gdb) #0  __strlen_avx2 () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:65
#1  0x00007ffff7c5dd90 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::compare(char const*) const ()
   from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#2  0x00007ffff7f3d0c2 in std::operator==<char, std::char_traits<char>, std::allocator<char> > (__rhs=<optimized out>, __lhs="sid")
    at /usr/include/c++/11/bits/basic_string.h:6246
#3  CacheSetHelperAPTGet::tryVirtualPackage (this=0x7fffffffdd10, Cache=..., 
    Pkg=..., select=<optimized out>) at ./apt-private/private-cacheset.cc:439
#4  0x00007ffff7f3d9a3 in CacheSetHelperAPTGet::canNotFindVersionRelease (
    this=0x7fffffffdd10, Cache=..., Pkg=..., verstr="sid")
    at ./apt-private/private-cacheset.cc:368
#5  0x00007ffff7f3e70f in CacheSetHelperAPTGet::canNotGetVersion (
    this=0x7fffffffdd10, select=<optimized out>, Cache=..., Pkg=...)
    at ./apt-private/private-cacheset.cc:332
#6  0x00007ffff7de712e in APT::VersionContainerInterface::FromString(APT::VersionContainerInterface*, pkgCacheFile&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, APT::CacheSetHelper::VerSelector, APT::CacheSetHelper&, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.6.0
#7  0x00007ffff7de7517 in APT::VersionContainerInterface::FromModifierCommandLine(unsigned short&, APT::VersionContainerInterface*, pkgCacheFile&, char const*, std::__cxx11::list<APT::VersionContainerInterface::Modifier, std::allocator<APT::VersionContainerInterface::Modifier> > const&, APT::CacheSetHelper&) ()
   from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.6.0
#8  0x00007ffff7f543af in APT::VersionContainer<std::set<pkgCache::VerIterator, std::less<pkgCache::VerIterator>, std::allocator<pkgCache::VerIterator> > >::GroupedFromCommandLine (helper=..., fallback=2, mods=std::__cxx11::list = {...}, 
    cmdline=<optimized out>, Cache=...)
    at ./obj-x86_64-linux-gnu/include/apt-pkg/cacheset.h:940
#9  DoCacheManipulationFromCommandLine (CmdL=..., 
    VolatileCmdL=std::vector of length 0, capacity 0, Cache=..., 
    verset=std::map with 0 elements, UpgradeMode=0, 
    UnknownPackages=std::set with 0 elements, HeldBackPackages=...)
    at ./apt-private/private-install.cc:642
#10 0x00007ffff7f562dc in DoInstall (CmdL=...)
    at ./apt-private/private-install.cc:864
#11 0x00007ffff7df71b7 in CommandLine::DispatchArg(CommandLine::Dispatch const*, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.6.0
#12 0x00007ffff7f41493 in DispatchCommandLine (CmdL=..., 
    Cmds=std::vector of length 31, capacity 32 = {...})
    at ./apt-private/private-cmndline.cc:587
#13 0x00005555555562a4 in main (argc=3, argv=0x7fffffffe618)
    at ./cmdline/apt.cc:120
(gdb) quit
A debugging session is active.

	Inferior 1 [process 130081] will be killed.

Quit anyway? (y or n) [answered Y; input not from terminal]

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