[Aptitude-devel] Bug#797270: aptitude: fails to download changelogs when $TMPDIR is readable by root only

[brian m. carlson]

Package: aptitude
Version: 0.7.1~exp1-1~apt1.1~exp9
Severity: normal

I use libpam-tmpdir, which provides per-user temporary directories.  It
sets, $TMP, $TMPDIR, $TEMP, and $TEMPDIR to point to /tmp/user/<uid>.
With the version in experimental (but not unstable), I get the following
error:

  Failed to download the changelog of python3-uno: No pude abrir el fichero /tmp/user/0/aptitude-root.525687:HkECYl/aptitudeDownload+z%ZfwHySLdJqfSCq5yLP8IXVuWde4kI - open (13: Permission denied) [IP: 23.235.44.249 80]

I'm unclear why I'm seeing this error as I'm running aptitude under
sudo, therefore giving me root privileges.

-- Package-specific info:
Terminal: xterm-256color
$DISPLAY is set.
which aptitude: /usr/bin/aptitude

aptitude version information:
aptitude 0.7.1 compiled at Aug 21 2015 20:50:38
Compiler: g++ 5.2.1 20150808
Compiled against:
  apt version 5.0.0
  NCurses version 6.0
  libsigc++ version: 2.4.1
  Gtk+ support disabled.
  Qt support disabled.

Current library versions:
  NCurses version: ncurses 6.0.20150810
  cwidget version: 0.5.17
  Apt version: 5.0.0

aptitude linkage:
	linux-vdso.so.1 (0x00007ffede59c000)
	libapt-pkg.so.5.0 => /usr/lib/x86_64-linux-gnu/libapt-pkg.so.5.0 (0x00007f39dac54000)
	libncursesw.so.5 => /lib/x86_64-linux-gnu/libncursesw.so.5 (0x00007f39daa24000)
	libtinfo.so.5 => /lib/x86_64-linux-gnu/libtinfo.so.5 (0x00007f39da7f9000)
	libsigc-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libsigc-2.0.so.0 (0x00007f39da5f3000)
	libcwidget.so.3 => /usr/lib/x86_64-linux-gnu/libcwidget.so.3 (0x00007f39da2f4000)
	libsqlite3.so.0 => /usr/lib/x86_64-linux-gnu/libsqlite3.so.0 (0x00007f39da026000)
	libboost_iostreams.so.1.58.0 => /usr/lib/x86_64-linux-gnu/libboost_iostreams.so.1.58.0 (0x00007f39d9e0d000)
	libxapian.so.22 => /usr/lib/libxapian.so.22 (0x00007f39d9a0b000)
	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f39d97ed000)
	libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f39d9472000)
	libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f39d9171000)
	libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f39d8f5a000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f39d8bb1000)
	libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1 (0x00007f39d89ae000)
	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f39d87a9000)
	libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x00007f39d8592000)
	libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f39d8377000)
	libbz2.so.1.0 => /lib/x86_64-linux-gnu/libbz2.so.1.0 (0x00007f39d8166000)
	liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007f39d7f43000)
	librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f39d7d3a000)
	libuuid.so.1 => /lib/x86_64-linux-gnu/libuuid.so.1 (0x00007f39d7b35000)
	/lib64/ld-linux-x86-64.so.2 (0x000056461a05e000)

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.1.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=es_US.UTF-8, LC_CTYPE=es_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages aptitude depends on:
ii  aptitude-common           0.7.1~exp1-1~apt1.1~exp9
ii  libapt-pkg5.0             1.1~exp11
ii  libboost-iostreams1.58.0  1.58.0+dfsg-3
ii  libc6                     2.19-19
ii  libcwidget3v5             0.5.17-4
ii  libgcc1                   1:5.2.1-15
ii  libncursesw5              6.0+20150810-1
ii  libsigc++-2.0-0v5         2.4.1-2
ii  libsqlite3-0              3.8.11.1-1
ii  libstdc++6                5.2.1-15
ii  libtinfo5                 6.0+20150810-1
ii  libxapian22v5             1.2.21-1.2

Versions of packages aptitude recommends:
ii  aptitude-doc-en [aptitude-doc]  0.7-1
ii  libparse-debianchangelog-perl   1.2.0-8
ii  sensible-utils                  0.0.9

Versions of packages aptitude suggests:
pn  apt-xapian-index  <none>
pn  debtags           <none>
ii  tasksel           3.33

-- no debconf information

-- 
brian m. carlson / brian with sandals: Houston, Texas, US
+1 832 623 2791 | http://www.crustytoothpaste.net/~bmc | My opinion only
OpenPGP: RSA v4 4096b: 88AC E9B2 9196 305B A994 7552 F1BA 225C 0223 B187
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