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[Bug 2111845] Re: autopkgtests failing with fuse3 3.17

To: debcrafters-packages@xxxxxxxxxxxxxxxxxxx
From: Sebastien Bacher <2111845@xxxxxxxxxxxxxxxxxx>
Date: Wed, 11 Jun 2025 13:00:46 -0000
Reply-to: Bug 2111845 <2111845@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx

Steps to reproduce
$ sudo autopkgtest-buildvm-ubuntu-cloud -v -r questing
$ autopkgtest archivemount -U --apt-pocket=proposed=src:fuse3 --shell-fail -- qemu autopkgtest-questing-amd64.img

After hitting the test issue
$ ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 10022 ubuntu@localhost

get the archivemount source (or find it unpacked already in /tmp/tmp.<....>
$ debian/tests/test


The journal has 

[  105.920320] audit: type=1400 audit(1749646063.854:171): apparmor="DENIED" operation="capable" class="cap" profile="fusermount3" pid=1108 comm="fusermount3" capability=1  capname="dac_override"
[  105.924966] audit: type=1400 audit(1749646063.858:172): apparmor="DENIED" operation="capable" class="cap" profile="fusermount3" pid=1108 comm="fusermount3" capability=7  capname="setuid"
[  105.925028] audit: type=1400 audit(1749646063.858:173): apparmor="DENIED" operation="capable" class="cap" profile="fusermount3" pid=1109 comm="fusermount3" capability=7  capname="setuid"
[  105.925106] audit: type=1400 audit(1749646063.859:174): apparmor="DENIED" operation="exec" class="file" profile="fusermount3" name="/usr/bin/mount" pid=1109 comm="fusermount3" requested_mask="x" denied_mask="x" fsuid=0 ouid=0

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https://bugs.launchpad.net/bugs/2111845

Title:
  autopkgtests failing with fuse3 3.17

Status in apparmor package in Ubuntu:
  New
Status in fuse3 package in Ubuntu:
  New

Bug description:
  fuse3 is stuck in questing-proposed because of numerous autopkgtest
  failures.

  My blind guess is that the apparmor profile might need to be updated
  for the new major fuse3 release.

  /etc/apparmor.d/fusermount3

  I don't have time to work on this issue much now, but I'm filing this
  bug in case the apparmor maintainers can take a look.

  Example error
  -------------
  fusermount3: failed to access mountpoint /tmp/tmp.B16WV64tPD/m: Permission denied

  https://ubuntu-archive-team.ubuntu.com/proposed-
  migration/update_excuses.html#fuse3

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