If/when this lands in jammy 5.15 it will affect snapd-preseed status in
livecd-rootfs which will need to have appropriate adjustment as well, at
the same time.
** Changed in: linux (Ubuntu)
Status: Incomplete => Triaged
** Also affects: livecd-rootfs (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2045384
Title:
AppArmor patch for mq-posix interface is missing in jammy
Status in linux package in Ubuntu:
Triaged
Status in livecd-rootfs package in Ubuntu:
New
Bug description:
[ Impact ]
mq-posix snapd interface does not work on Ubuntu Core 22. It results
in permission denied even all interfaces are connected.
Our brandstore customer is using posix message queue for IPC between
snaps. They added mq-posix interface and connected them properly but
getting permission denied error.
The AppArmor patch for posix message queue created for other customer
did not land in the standard jammy kernel.
Userspace support for AppArmor message queue handling is already
present in Ubuntu Core 22, it is just missing from the kernel.
[ Test Plan ]
* Create snaps using the posix-mq snapd interface on Ubuntu Core 22 or
Classic 22.04 with the standard kernel.
* Example snaps for testing:
https://code.launchpad.net/~itrue/+git/mqtest-provider and
https://code.launchpad.net/~itrue/+git/mqtest-client
[ Where problems could occur ]
* The patches already exist for 5.15 and have been used on other
private customer kernels and all kernels released after 22.04, so
there is already a good track record for this patchset and it
shouldn't create any issues.
[ Other Info ]
* This is a time-sensitive issue for a paying customer
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