** Also affects: ubuntu-z-systems
Importance: Undecided
Status: New
** Tags added: s390x
** Changed in: ubuntu-z-systems
Assignee: (unassigned) => Skipper Bug Screeners (skipper-screen-team)
** Changed in: apparmor (Ubuntu)
Importance: Undecided => Medium
** Changed in: util-linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: ubuntu-z-systems
Importance: Undecided => Medium
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https://bugs.launchpad.net/bugs/2107402
Title:
lsblk blocked by apparmor in 25.04
Status in Ubuntu on IBM z Systems:
New
Status in apparmor package in Ubuntu:
New
Status in util-linux package in Ubuntu:
New
Bug description:
Fresh install of 25.04 on s390x. Same happens also on upgrade from
24.10 to 25.04
lsblk returns no output
journactl shows it is blocked by apparmor
This works fine for SCSI devices, it fails only for DASD.
```
2025-04-15T15:02:26.048055+00:00 s5lp1-gen03 kernel: kauditd_printk_skb: 6
callbacks suppressed
2025-04-15T15:02:26.048075+00:00 s5lp1-gen03 kernel: audit: type=1400
audit(1744729346.034:270): apparmor="DENIED" operation="open" class="file"
profile="lsblk" name="/sys/devices/css0/0.0.0000/0.0.0101/block/dasda/hidden"
pid=2070 comm="lsblk" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
2025-04-15T15:02:26.048077+00:00 s5lp1-gen03 kernel: audit: type=1400
audit(1744729346.034:271): apparmor="DENIED" operation="open" class="file"
profile="lsblk" name="/sys/devices/css0/0.0.0000/0.0.0101/block/dasda/dev"
pid=2070 comm="lsblk" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
2025-04-15T15:02:26.048078+00:00 s5lp1-gen03 kernel: audit: type=1400
audit(1744729346.034:272): apparmor="DENIED" operation="open" class="file"
profile="lsblk" name="/sys/devices/css0/0.0.0003/0.0.0104/block/dasdd/hidden"
pid=2070 comm="lsblk" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
2025-04-15T15:02:26.048079+00:00 s5lp1-gen03 kernel: audit: type=1400
audit(1744729346.034:273): apparmor="DENIED" operation="open" class="file"
profile="lsblk" name="/sys/devices/css0/0.0.0003/0.0.0104/block/dasdd/dev"
pid=2070 comm="lsblk" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
2025-04-15T15:02:26.048080+00:00 s5lp1-gen03 kernel: audit: type=1400
audit(1744729346.034:274): apparmor="DENIED" operation="open" class="file"
profile="lsblk" name="/sys/devices/css0/0.0.0001/0.0.0102/block/dasdb/hidden"
pid=2070 comm="lsblk" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
2025-04-15T15:02:26.048080+00:00 s5lp1-gen03 kernel: audit: type=1400
audit(1744729346.034:275): apparmor="DENIED" operation="open" class="file"
profile="lsblk" name="/sys/devices/css0/0.0.0001/0.0.0102/block/dasdb/dev"
pid=2070 comm="lsblk" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
2025-04-15T15:02:26.048081+00:00 s5lp1-gen03 kernel: audit: type=1400
audit(1744729346.034:276): apparmor="DENIED" operation="open" class="file"
profile="lsblk" name="/sys/devices/css0/0.0.0002/0.0.0103/block/dasdc/hidden"
pid=2070 comm="lsblk" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
2025-04-15T15:02:26.048081+00:00 s5lp1-gen03 kernel: audit: type=1400
audit(1744729346.034:277): apparmor="DENIED" operation="open" class="file"
profile="lsblk" name="/sys/devices/css0/0.0.0002/0.0.0103/block/dasdc/dev"
pid=2070 comm="lsblk" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
```
Attaching also strace
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