[Bug 2037567] [NEW] mantic kernel 6.5.0.1006 Adds io_uring apparmor feature

John Chittum 2037567 at bugs.launchpad.net
Wed Sep 27 15:34:33 UTC 2023


Public bug reported:

starting with kernel package(s) 6.5.0.1006, currently in mantic-
proposed, `io_uring` is added as a apparmor feature. This change results
in preseeded snaps being unoptimized, as the mounted apparmor features
in the chroot do not match the 6.5.0.1006 kernels. On a system running
with the kernel

cat /sys/kernel/security/apparmor/features/io_uring/mask
sqpoll override_creds

1. ensure that this is correct with kernel and security teams
2. ensure that this is the default going forward

if 1 and 2, then set the default in `livecd-rootfs` for mounted apparmor
features to include io_uring

** Affects: livecd-rootfs (Ubuntu)
     Importance: Undecided
     Assignee: John Chittum (jchittum)
         Status: New

** Changed in: livecd-rootfs (Ubuntu)
     Assignee: (unassigned) => John Chittum (jchittum)

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https://bugs.launchpad.net/bugs/2037567

Title:
  mantic kernel 6.5.0.1006 Adds io_uring apparmor feature

Status in livecd-rootfs package in Ubuntu:
  New

Bug description:
  starting with kernel package(s) 6.5.0.1006, currently in mantic-
  proposed, `io_uring` is added as a apparmor feature. This change
  results in preseeded snaps being unoptimized, as the mounted apparmor
  features in the chroot do not match the 6.5.0.1006 kernels. On a
  system running with the kernel

  cat /sys/kernel/security/apparmor/features/io_uring/mask
  sqpoll override_creds

  1. ensure that this is correct with kernel and security teams
  2. ensure that this is the default going forward

  if 1 and 2, then set the default in `livecd-rootfs` for mounted
  apparmor features to include io_uring

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