*** This bug is a duplicate of bug 2064849 ***
https://bugs.launchpad.net/bugs/2064849
Ubuntu can not ship an unconfined bwrap profile, doing so allows a
trivial by-pass of the unprivileged user namespace restrictions.
An alternative profile for bwrap is provided by the apparmor-profiles
package in /usr/share/apparmor/extra-profiles/bwrap-userns-restrict
it is not enabled by default at this time due to a need to fix an
interaction with flatpak.
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https://bugs.launchpad.net/bugs/2079983
Title:
Thumbnails in desktop doesn't work due to apparmor restrictions
Status in apparmor package in Ubuntu:
New
Bug description:
DesktopIconsNG uses the gnome-desktop library to generate thumbnails.
Unfortunately, it uses bwrap to launch the thumbnailers, which
requires unprivileged user mamespaces, so it fails in Ubuntu 24.04.
Creating /etc/apparmor.d/bwrap file with the attached patch does solve
the problem.
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https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/2079983/+subscriptions
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