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Netplan fails to activate my wireless network. Journalctl shows that an
apparmor error occurs:
NetworkManager[2367]: <warn> [1740295808.8946] device (wlp4s0): re-acquiring
supplicant interface (#5).
wpa_supplicant[2371]: netlink: Failed to open netlink socket: Permission denied
kernel: audit: type=1400 audit(1740295808.894:2944): apparmor="DENIED"
operation="create" class="net" profile="wpa_supplicant" pid=2371
comm="wpa_supplicant" family="netlink" sock_type="raw" protocol=0
requested="create" denied="create"
kernel: audit: type=1400 audit(1740295808.894:2945): apparmor="DENIED"
operation="open" class="file" profile="wpa_supplicant"
name="/sys/devices/pci0000:00/0000:00:01.6/0000:04:00.0/ieee80211/phy0/name"
pid=2371 comm="wpa_supplicant" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
kernel: audit: type=1400 audit(1740295808.894:2946): apparmor="DENIED"
operation="create" class="net" profile="wpa_supplicant" pid=2371
comm="wpa_supplicant" family="inet" sock_type="dgram" protocol=0
requested="create" denied="create"
kernel: audit: type=1400 audit(1740295808.895:2947): apparmor="DENIED"
operation="open" class="file" profile="wpa_supplicant"
name="/sys/devices/pci0000:00/0000:00:01.6/0000:04:00.0/ieee80211/phy0/name"
pid=2371 comm="wpa_supplicant" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
kernel: audit: type=1400 audit(1740295808.895:2948): apparmor="DENIED"
operation="create" class="net" profile="wpa_supplicant" pid=2371
comm="wpa_supplicant" family="inet" sock_type="dgram" protocol=0
requested="create" denied="create"
wpa_supplicant[2371]: Failed to initialize driver 'nl80211'
wpa_supplicant[2371]: socket(PF_INET,SOCK_DGRAM): Permission denied
NetworkManager[2367]: <error> [1740295808.8970] device (wlp4s0): Couldn't
initialize supplicant interface:
GDBus.Error:fi.w1.wpa_supplicant1.UnknownError: wpa_supplicant couldn't grab
this interface.
wpa_supplicant[2371]: socket(PF_INET,SOCK_DGRAM): Permission denied
NetworkManager[2367]: <info> [1740295808.8971] device (wlp4s0): supplicant
interface keeps failing, giving up
wpa_supplicant[2371]: wlp4s0: Failed to initialize driver interface
wpa_supplicant[2371]: wlp4s0: CTRL-EVENT-DSCP-POLICY clear_all
---
ProblemType: Bug
ApportVersion: 2.31.0+git20250220-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: KDE
DistroRelease: Ubuntu 25.04
InstallationDate: Installed on 2021-07-01 (1333 days ago)
InstallationMedia: Kubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
Package: wpasupplicant 2:2.10-22
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 6.12.0-12.12-generic 6.12.4
Tags: plucky
Uname: Linux 6.12.0-12-generic x86_64
UpgradeStatus: Upgraded to plucky on 2024-11-10 (105 days ago)
UserGroups: N/A
_MarkForUpload: True
modified.conffile..etc.dbus-1.system.d.wpa_supplicant.conf: [deleted]
** Affects: wpa (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-collected plucky
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Apparmor failure in wpa_supplicant
https://bugs.launchpad.net/bugs/2099789
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seeded packages, which is subscribed to wpa in Ubuntu.
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