** Also affects: linux (Ubuntu Noble)
Importance: Critical
Status: Fix Released
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https://bugs.launchpad.net/bugs/2028253
Title:
update apparmor and LSM stacking patch set
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Mantic:
Fix Released
Status in linux source package in Noble:
Fix Released
Bug description:
[Impact]
Provide an updated patch set for apparmor / LSM stacking with all the
custom features that we need in the Ubuntu kernel.
This patch set is required to provide the proper confinement with
snaps and other Ubuntu-specific security features.
[Fix]
Apply the latest updated patch set from:
https://gitlab.com/jjohansen/apparmor-kernel
[Test case]
Run the apparmor test case suite.
[Regression potential]
This patch set introduces significant non-upstream changes to the
security layer, so we may expect generic regressions in the kernel,
especially running applications that are stressing the security layer
(such as systemd, snapd, lxd, etc.).
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