ACK: [SRU][N][Patch 0/1] UBUNTU: SAUCE: fix: apparmor4.0.0 [26/90]: LSM

[Alessio Faina]

On Mon, Oct 06, 2025 at 07:11:42AM -0700, John Johansen wrote:
> SRU Justification:
> 
> [Impact]
> 
> * When auditd is installed and audit rules are used the console can be
>   flooded with the error message.
> 
>   error in audit_log_object_context
> 
> [Fix]
> 
> * The fix is backported from 
> 
>   5ba569134855 https://github.com/cschaufler/lsm-stacking.
> 
> This is the development upstream for the out of tree LSM stacking
> patch series.
> 
> 
> * The fix is also carried the Oracular 6.14 kernel in its version of the patch
> 
>   commit 28b69ac0e2fc ("UBUNTU: SAUCE: apparmor4.0.0 [25/99]: Audit: Add record for multiple object contexts")
> 
> 
> Specifically the fix changes the test for failure on the result from
> security_secid_to_secctx(), which on success returns a size and on
> failure returns an error.
> 
> [Test Plan]
> 
> * Install audit
> * ensure AppArmor is enabled by running aa-enabled
> * Add the audit rule
>    auditctl -a always,exit -S execve -k all_execs
> * run applications, or shell commands
> 
> If the fix is not applied each application or command run with result
> in a message to the console. If the console is not displaying the
> error message
> 
>    error in audit_log_object_context
> 
> the fix is working.
> 
> [Where problems could occur]
> 
> * The regression can be considered as low, since: the fix is already
>   integrated into in the plucky 6.14, and questing 6.16/6.17 kernels
>   without reported issues.
> 
> 
> -- 
> kernel-team mailing list
> kernel-team at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/kernel-team

Acked-by: Alessio Faina <alessio.faina at canonical.com>