Package: network-manager
Version: 1.36.0-2
Severity: important
Tags: ipv6

Dear Maintainer,


after upgrading network-manager from version 1.34.0-2 to 1.35.91-1 or higher,
NetworkManager fails to set the IPv6 addresses, received via mobile boradband
connection.

* Downgrading to 1.34.0-2 immediately fixes the problem.
* All later Versions, starting with 1.35.91-1 are affected
* contents of journal:

------------  schnipp ---------------

[...] device (cdc-wdm1): Activation: starting connection 'T-Mobile IPv6 only' 
(...)
[...] audit: op="connection-activate" uuid="..." name="T-Mobile IPv6 only" 
pid=1635 uid=1000 result="success"
[...] device (cdc-wdm1): state change: disconnected -> prepare (reason 'none', 
sys-iface-state: 'managed')
[...] manager: NetworkManager state is now CONNECTING
[...] device (cdc-wdm1): state change: prepare -> config (reason 'none', 
sys-iface-state: 'managed')
[...] device (cdc-wdm1): state change: config -> ip-config (reason 'none', 
sys-iface-state: 'managed')
[...] device (cdc-wdm1): retrieving IP configuration failed: modem IP method 
unsupported
[...] modem-broadband[cdc-wdm1]: IPv6 base configuration:
[...] modem-broadband[cdc-wdm1]:   address 
2a01:598:99b8:8a19:3964:a9a3:911d:89a3/64 lft forever pref forever lifetime 
113-0[0,0] src unknown (slaac disabled)
[...] modem-broadband[cdc-wdm1]:   gateway 2a01:598:99b8:8a19:d85c:74aa:b2a2:5c8
[...] modem-broadband[cdc-wdm1]:   DNS 2a01:598:7ff:0:10:74:210:221
[...] modem-broadband[cdc-wdm1]:   DNS 2a01:598:7ff:0:10:74:210:222
[...] platform-linux: do-add-ip6-address[4: 
2a01:598:99b8:8a19:3964:a9a3:911d:89a3]: failure 13 (Keine Berechtigung)
                                                                                
     ^^^^^^^^^^
                                                                                
     ||||||||||

[...] device (cdc-wdm1): state change: ip-config -> ip-check (reason 'none', 
sys-iface-state: 'managed')
[...] device (cdc-wdm1): state change: ip-check -> secondaries (reason 'none', 
sys-iface-state: 'managed')
[...] device (cdc-wdm1): state change: secondaries -> activated (reason 'none', 
sys-iface-state: 'managed')
[...] manager: NetworkManager state is now CONNECTED_LOCAL
[...] manager: NetworkManager state is now CONNECTED_SITE
[...] policy: set 'T-Mobile IPv6 only' (wwan0) as default for IPv6 routing and 
DNS
[...] device (cdc-wdm1): Activation: successful, device activated.
[...] manager: NetworkManager state is now CONNECTED_GLOBAL

------------ schnapp ----------------

-- System Information:
Debian Release: bookworm/sid
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'unstable'), (500, 'testing'), 
(500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.15.0-3-amd64 (SMP w/4 CPU threads)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages network-manager depends on:
ii  adduser          3.118
ii  dbus             1.12.20-4
ii  libaudit1        1:3.0.7-1
ii  libbluetooth3    5.62-2
ii  libc6            2.33-7
ii  libcurl3-gnutls  7.81.0-1
ii  libglib2.0-0     2.70.4-1
ii  libgnutls30      3.7.3-4+b1
ii  libjansson4      2.13.1-1.1
ii  libmm-glib0      1.18.6-2
ii  libndp0          1.6-1+b1
ii  libnewt0.52      0.52.21-5+b1
ii  libnm0           1.36.0-2
ii  libpsl5          0.21.0-1.2
ii  libreadline8     8.1.2-1
ii  libselinux1      3.3-1+b1
ii  libsystemd0      250.3-2
ii  libteamdctl0     1.31-1
ii  libudev1         250.3-2
ii  policykit-1      0.105-32
ii  udev             250.3-2

Versions of packages network-manager recommends:
ii  dnsmasq-base [dnsmasq-base]  2.86-1.1
ii  libpam-systemd               250.3-2
ii  modemmanager                 1.18.4-1
ii  ppp                          2.4.9-1+1
ii  wireless-regdb               2021.08.28-1
ii  wpasupplicant                2:2.10-2

Versions of packages network-manager suggests:
ii  iptables       1.8.7-1
pn  libteam-utils  <none>

Versions of packages network-manager is related to:
ii  isc-dhcp-client  4.4.2-P1-1

-- no debconf information

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