This bug was fixed in the package apport - 2.20.11-0ubuntu27.25
---------------
apport (2.20.11-0ubuntu27.25) focal; urgency=medium
* Point Vcs-* URIs to git
* whoopsie-upload-all: Catch FileNotFoundError during process_report
(LP: #1867204)
* Grab a slice of JournalErrors around the crash time (LP: #1962454)
* data/apport:
- Initialize error log as first step (LP: #1989467)
- Fix PermissionError for setuid programs inside container (LP: #1982487)
- Fix reading from stdin inside containers (LP: #1982555)
* Fix autopkgtest test case failures (LP: #1989467):
- Mark autopkgtest with isolation-container restriction
- Fix failure if kernel module isofs is not installed
- Do not check recommended dependencies
- Skip UI test if kernel thread is not found
- Fix race in test_crash_system_slice
- Fix check for not running test executable
- Use shadow in *_different_binary_source
- Mock kernel package version in UI test
- Fix test_kerneloops_nodetails if kernel is not installed
- Drop broken test_crash_setuid_drop_and_kill
- Expect linux-signed on arm64/s390x as well
- Skip SegvAnalysis for non x86 architectures
- Use unlimited core ulimit for SIGQUIT test
- Fix race with progress window in GTK UI tests
- Use sleep instead of yes for tests
- Fix test_add_gdb_info_script on armhf
- Fix wrong Ubuntu archive URI on ports
- Fix KeyError in test_install_packages_unversioned
- Depend on python3-systemd for container tests
- Depend on psmisc for killall binary
- Replace missing oxideqt-codecs
- Drop broken test_install_packages_from_launchpad
- Fix test_install_packages_permanent_sandbox* for s390x
-- Benjamin Drung <bdr...@ubuntu.com> Thu, 15 Sep 2022 14:43:39 +0200
** Changed in: apport (Ubuntu Focal)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1982487
Title:
apport fails with PermissionError for dump mode 2 in containers
Status in Apport:
Fix Released
Status in apport package in Ubuntu:
Fix Released
Status in apport source package in Focal:
Fix Released
Status in apport source package in Jammy:
Fix Committed
Bug description:
[Impact]
Apport will fail for processes with dump mode 2 inside of containers.
[Test plan]
Run following testcase script inside a LXC container:
```
#!/bin/sh
sudo rm -rf /var/crash/* /var/log/apport.log
sudo -u mail sh -c "ping 127.0.0.1 > /dev/null" &
sleep 0.3
killall -11 ping
sleep 0.3
cat /var/log/apport.log
```
apport.log for the affected version:
```
ERROR: apport (pid 6452) Thu Jul 21 12:59:45 2022: called for pid 6449,
signal 11, core limit 0, dump mode 2
ERROR: apport (pid 6452) Thu Jul 21 12:59:45 2022: not creating core for pid
with dump mode of 2
ERROR: apport (pid 6452) Thu Jul 21 12:59:45 2022: Unhandled exception:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/apport/report.py", line 681, in
add_proc_info
self["ExecutablePath"] = _read_proc_link(
File "/usr/lib/python3/dist-packages/apport/report.py", line 92, in
_read_proc_link
return os.readlink(path, dir_fd=dir_fd)
PermissionError: [Errno 13] Permission denied: 'exe'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/share/apport/apport", line 862, in <module>
info.add_proc_info(proc_pid_fd=proc_pid_fd)
File "/usr/lib/python3/dist-packages/apport/report.py", line 686, in
add_proc_info
raise ValueError("not accessible")
ValueError: not accessible
ERROR: apport (pid 6452) Thu Jul 21 12:59:45 2022: pid: 6452, uid: 0, gid: 0,
euid: 8, egid: 8
ERROR: apport (pid 6452) Thu Jul 21 12:59:45 2022: environment:
environ({'LANG': 'C.UTF-8', 'PATH':
'/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin',
'LISTEN_PID': '6452', 'LISTEN_FDS': '1', 'LISTEN_FDNAMES': 'connection',
'INVOCATION_ID': '1352c67b4a21480a9b35db8012dafb42', 'JOURNAL_STREAM':
'8:29587491', 'SYSTEMD_EXEC_PID': '6452'})
```
The apport log should not show a Traceback.
[Where problems could occur]
The apport binary is called by the kernel when a process crashes.
Worst case scenarios include breaking the apport binary and no problem
report is generated any more (or apport uses too much resources).
Users will see problems reports inside the container which cause
additional load or disk usage. The fix is accompanied by a test case
(run in autopkgtest).
[Other Info]
The autopkgtest for armhf are run inside a LXC container and some test
cases like test_crash_setuid_drop trigger this bug.
Due to the huge amount of broken autopkgtest tests, the diff for the
SRUs are bigger than desired. The individual commits in
https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/apport/ are
probably easier to review.
* jammy SRU:
https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/apport/log/?h=1fa042cc27714c407494b3d6dfd0730bb984f3eb
* focal SRU:
https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/apport/log/?h=eaa92037c7dfba621719c6f81fd75f6a09e90881
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