It's apparmor inside a lxd container:
[Mon Aug 25 18:49:35 2025] audit: type=1400 audit(1756147775.033:7516):
apparmor="DENIED" operation="file_inherit" class="file"
namespace="root//lxd-q-dig_<var-snap-lxd-common-lxd>" profile="dig"
name="/dev/pts/2" pid=253731 comm="dig" requested_mask="wr"
denied_mask="wr" fsuid=1001000 ouid=1001000
I updated apparmor from 4.1.1-0ubuntu6 to 5.0.0~alpha1-0ubuntu4:
$ diff -u works.txt fails.txt
--- works.txt 2025-08-25 18:48:04.776424888 +0000
+++ fails.txt 2025-08-25 18:48:24.777305644 +0000
@@ -4,7 +4,7 @@
||/ Name Version
Architecture Description
+++-=================================-==========================================-============-================================================================================
ii adduser 3.152ubuntu1
all add and remove users and groups
-ii apparmor 4.1.1-0ubuntu6
amd64 user-space parser utility for AppArmor
+ii apparmor 5.0.0~alpha1-0ubuntu4
amd64 user-space parser utility for AppArmor
ii apport 2.33.1-0ubuntu1
all automatically generate crash reports for debugging
ii apport-core-dump-handler 2.33.1-0ubuntu1
all Kernel core dump handler for Apport
ii apport-symptoms 0.25
all symptom scripts for apport
$ dig
Aborted (core dumped)
** Also affects: apparmor (Ubuntu)
Importance: Undecided
Status: New
** Changed in: bind9 (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/2121401
Title:
dig coredump
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