This bug was fixed in the package apparmor - 3.0.3-0ubuntu4
---------------
apparmor (3.0.3-0ubuntu4) jammy; urgency=medium
* d/p/u/samba-systemd-interaction.patch: allow smbd to interact with
systemd (LP: #1952242):
- allow notify access
- allow specific /proc access
- allow ptrace read
-- Andreas Hasenack <andr...@canonical.com> Mon, 29 Nov 2021 14:43:28
+0000
** Changed in: apparmor (Ubuntu)
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1952242
Title:
[jammy] missing rules for samba profile
Status in apparmor package in Ubuntu:
Fix Released
Bug description:
ubuntu jammy
apparmor-profiles 3.0.3-0ubuntu3
samba 2:4.13.5+dfsg-2ubuntu3
smbd:
Nov 25 14:59:56 jammy-samba-apparmor systemd[1]: Starting Samba SMB Daemon...
Nov 25 14:59:56 jammy-samba-apparmor kernel: [ 227.586080] audit: type=1400
audit(1637852396.969:77): apparmor="ALLOWED" operation="capable" profile="smbd"
pid=1094 comm="smbd" capability=12 capname="net_admin"
Nov 25 14:59:56 jammy-samba-apparmor kernel: [ 227.586241] audit: type=1400
audit(1637852396.969:78): apparmor="ALLOWED" operation="sendmsg" profile="smbd"
name="/run/systemd/notify" pid=1094 comm="smbd" requested_mask="w"
denied_mask="w" fsuid=0 ouid=0
Nov 25 14:59:56 jammy-samba-apparmor kernel: [ 227.592258] audit: type=1400
audit(1637852396.977:79): apparmor="ALLOWED" operation="open" profile="smbd"
name="/proc/sys/kernel/osrelease" pid=1094 comm="smbd" requested_mask="r"
denied_mask="r" fsuid=0 ouid=0
Nov 25 14:59:56 jammy-samba-apparmor kernel: [ 227.592460] audit: type=1400
audit(1637852396.977:80): apparmor="ALLOWED" operation="open" profile="smbd"
name="/proc/1/environ" pid=1094 comm="smbd" requested_mask="r" denied_mask="r"
fsuid=0 ouid=0
Nov 25 14:59:56 jammy-samba-apparmor kernel: [ 227.592532] audit: type=1400
audit(1637852396.977:81): apparmor="ALLOWED" operation="ptrace" profile="smbd"
pid=1094 comm="smbd" requested_mask="read" denied_mask="read" peer="unconfined"
Nov 25 14:59:56 jammy-samba-apparmor kernel: [ 227.592683] audit: type=1400
audit(1637852396.977:82): apparmor="ALLOWED" operation="open" profile="smbd"
name="/proc/cmdline" pid=1094 comm="smbd" requested_mask="r" denied_mask="r"
fsuid=0 ouid=0
Nov 25 14:59:56 jammy-samba-apparmor kernel: [ 227.600378] audit: type=1400
audit(1637852396.985:83): apparmor="ALLOWED" operation="sendmsg" profile="smbd"
name="/run/systemd/notify" pid=1094 comm="smbd" requested_mask="w"
denied_mask="w" fsuid=0 ouid=0
nmbd:
Nov 25 14:59:26 jammy-samba-apparmor systemd[1]: Starting Samba NMB Daemon...
Nov 25 14:59:26 jammy-samba-apparmor kernel: [ 196.718721] audit: type=1400
audit(1637852366.105:76): apparmor="ALLOWED" operation="capable" profile="nmbd"
pid=1067 comm="nmbd" capability=1
2 capname="net_admin"
The systemd notify one for smbd was first fixed for nmbd in
https://gitlab.com/apparmor/apparmor/-/merge_requests/236 for nmbd, but smbd
was missed.
net_admin might be https://github.com/systemd/systemd/pull/10085, I
didn't check if jammy's systemd has that patch (it should, since it's
old)
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