[Bug 2080499] Re: /usr/share/apport/apport:ProcessLookupError:/usr/share/apport/apport at 1248:main:_check_global_pid_and_forward:forward_crash_to_container

[Ural Tunaboyu]

Ubuntu 24.10 (Oracular Oriole) has reached end of life, so this bug will
not be fixed for that specific release.

** Changed in: apport (Ubuntu Oracular)
       Status: New => Won't Fix

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to apport in Ubuntu.
https://bugs.launchpad.net/bugs/2080499

Title:
  /usr/share/apport/apport:ProcessLookupError:/usr/share/apport/apport at 1248:main:_check_global_pid_and_forward:forward_crash_to_container

Status in Apport:
  Fix Released
Status in apport package in Ubuntu:
  Fix Released
Status in apport source package in Jammy:
  New
Status in apport source package in Noble:
  New
Status in apport source package in Oracular:
  Won't Fix
Status in apport source package in Plucky:
  New

Bug description:
  [Original Report]

  ```
  Traceback (most recent call last):
    File "/usr/share/apport/apport", line 1248, in <module>
      sys.exit(main(sys.argv[1:]))
               ^^^^^^^^^^^^^^^^^^
    File "/usr/share/apport/apport", line 773, in main
      if _check_global_pid_and_forward(options):
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    File "/usr/share/apport/apport", line 732, in _check_global_pid_and_forward
      forward_crash_to_container(options)
    File "/usr/share/apport/apport", line 531, in forward_crash_to_container
      sock_fd = os.open(
                ^^^^^^^^
  ProcessLookupError: [Errno 3] No such process: 'root/run/apport.socket'
  ```

  Example /proc/cmdline:

  /usr/bin/python3 /usr/share/apport/apport -p1 -s4 -c0 -d1 -P570846
  -u1000 -g1000 -- !snap!chromium!2934!usr!lib!chromium-browser!chrome

  /usr/bin/python3 /usr/share/apport/apport -p1 -s4 -c0 -d1 -P22550
  -u1001 -g1001 -- !snap!brave!438!opt!brave.com!brave!brave

  The Ubuntu Error Tracker has been receiving reports about a problem regarding apport.  This problem was most recently seen with package version 2.28.1-0ubuntu3.1, the problem page at https://errors.ubuntu.com/problem/b7c6a639ac46aadb8076c65d2ceaecc34e2aa46e contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
  If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/.

  [ Impact ]

   * There are ten of thousands reports of this bug for jammy and noble
  on https://errors.ubuntu.com/?package=apport&period=day.

   * Commit 2bdffe076839 ("Switch from chroot to container to validating
  socket owner") that fixes CVE-2022-1242, CVE-2022-28657 causes a
  security update regression so Python emits a ProcessLookupError
  instead of FileNotFoundError.

   * The upload fixes the bug as we now include the ProcessLookupError
  exception so that we have the correct logs for the error. We can
  verify that the updated version does not appear on
  https://errors.ubuntu.com/?package=apport&period=day any more.

  [ Test Plan ]

   * This crash can be reproduced by killing chromium (killall -11
  chrome).

  ```
  Traceback (most recent call last):
    File "/usr/share/apport/apport", line 1248, in <module>
      sys.exit(main(sys.argv[1:]))
               ^^^^^^^^^^^^^^^^^^
    File "/usr/share/apport/apport", line 773, in main
      if _check_global_pid_and_forward(options):
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    File "/usr/share/apport/apport", line 732, in _check_global_pid_and_forward
      forward_crash_to_container(options)
    File "/usr/share/apport/apport", line 531, in forward_crash_to_container
      sock_fd = os.open(
                ^^^^^^^^
  ProcessLookupError: [Errno 3] No such process: 'root/run/apport.socket'
  ```

  The Snap container neither has /run nor /run/apport.socket

  [ Where problems could occur ]

   * Just adding exception handling for ProcessLookupError so it's a
  really small change, the only issue I can imagine is a syntax error
  which makes crashes apport

  * Since apport is primarily for crash reports, user experience is
  unlikely to be affected much

  [ Other Info ]

   * A small caveat is that the proposed fix doesn't have a test case
  covering this part of the code

To manage notifications about this bug go to:
https://bugs.launchpad.net/apport/+bug/2080499/+subscriptions