[ 421.446406][ T1158] device hsr_slave_0 left promiscuous mode [ 421.454111][ T1158] device hsr_slave_1 left promiscuous mode [ 421.461505][ T1158] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 421.468904][ T1158] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 421.478962][ T1158] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 421.486707][ T1158] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 421.496626][ T1158] device bridge_slave_1 left promiscuous mode [ 421.503437][ T1158] bridge0: port 2(bridge_slave_1) entered disabled state [ 421.514849][ T1158] device bridge_slave_0 left promiscuous mode [ 421.521264][ T1158] bridge0: port 1(bridge_slave_0) entered disabled state [ 421.535123][ T1158] device veth1_macvtap left promiscuous mode [ 421.542145][ T1158] device veth0_macvtap left promiscuous mode [ 421.548244][ T1158] device veth1_vlan left promiscuous mode [ 421.555597][ T1158] device veth0_vlan left promiscuous mode [ 421.677679][ T1158] team0 (unregistering): Port device team_slave_1 removed [ 421.689805][ T1158] team0 (unregistering): Port device team_slave_0 removed [ 421.704146][ T1158] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 421.717550][ T1158] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 421.761536][ T1158] bond0 (unregistering): Released all slaves Warning: Permanently added '10.128.0.156' (ED25519) to the list of known hosts. [ 426.664486][T32676] chnl_net:caif_netlink_parms(): no params data found [ 426.699276][T32676] bridge0: port 1(bridge_slave_0) entered blocking state [ 426.706583][T32676] bridge0: port 1(bridge_slave_0) entered disabled state [ 426.714387][T32676] device bridge_slave_0 entered promiscuous mode [ 426.723022][T32676] bridge0: port 2(bridge_slave_1) entered blocking state [ 426.730135][T32676] bridge0: port 2(bridge_slave_1) entered disabled state [ 426.738124][T32676] device bridge_slave_1 entered promiscuous mode [ 426.757232][T32676] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 426.768268][T32676] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 426.789396][T32676] team0: Port device team_slave_0 added [ 426.797026][T32676] team0: Port device team_slave_1 added [ 426.814214][T32676] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 426.821264][T32676] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 426.847424][T32676] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 426.859345][T32676] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 426.866524][T32676] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 426.892556][T32676] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 426.918537][T32676] device hsr_slave_0 entered promiscuous mode [ 426.925570][T32676] device hsr_slave_1 entered promiscuous mode [ 427.323054][T32676] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 427.333705][T32676] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 427.344814][T32676] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 427.355095][T32676] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 427.378454][T32676] bridge0: port 2(bridge_slave_1) entered blocking state [ 427.385627][T32676] bridge0: port 2(bridge_slave_1) entered forwarding state [ 427.393068][T32676] bridge0: port 1(bridge_slave_0) entered blocking state [ 427.400155][T32676] bridge0: port 1(bridge_slave_0) entered forwarding state [ 427.448291][T32676] 8021q: adding VLAN 0 to HW filter on device bond0 [ 427.463663][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 427.472551][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 427.480453][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 427.490268][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 427.506123][T32676] 8021q: adding VLAN 0 to HW filter on device team0 [ 427.517576][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 427.527114][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 427.534427][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 427.554766][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 427.564856][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 427.572074][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 427.593749][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 427.603993][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 427.620720][T32676] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 427.632429][T32676] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 427.646399][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 427.655024][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 427.663922][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 427.683757][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 427.698725][T32676] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 427.707060][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 427.716217][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 427.743360][ T1158] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 427.753805][ T1158] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 427.776252][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 427.785296][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 427.797460][T32676] device veth0_vlan entered promiscuous mode [ 427.804655][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 427.814419][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 427.827510][T32676] device veth1_vlan entered promiscuous mode [ 427.852970][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 427.863169][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 427.873352][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 427.883820][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 427.896881][T32676] device veth0_macvtap entered promiscuous mode [ 427.907387][T32676] device veth1_macvtap entered promiscuous mode [ 427.927875][T32676] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 427.936802][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 427.946324][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 427.956158][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 427.965928][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 427.979905][T32676] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 427.988377][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 427.999155][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 428.012472][T32676] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 428.023752][T32676] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 428.033263][T32676] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 428.043753][T32676] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 428.125751][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 428.137129][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 428.148764][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 428.169621][ T1276] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 428.178314][ T1276] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 428.187489][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 428.206546][T32751] netlink: 60 bytes leftover after parsing attributes in process `syz-executor306'. [ 428.231614][T32751] device wlan1 entered promiscuous mode [ 428.255176][T32751] team0: Port device wlan1 added [ 428.278530][T32751] [ 428.280935][T32751] ====================================================== [ 428.288071][T32751] WARNING: possible circular locking dependency detected [ 428.295267][T32751] syzkaller #0 Not tainted [ 428.299670][T32751] ------------------------------------------------------ [ 428.306665][T32751] syz-executor306/32751 is trying to acquire lock: [ 428.313144][T32751] ffff88801f41cd00 (team->team_lock_key){+.+.}-{3:3}, at: team_del_slave+0x2d/0x1d0 [ 428.322748][T32751] [ 428.322748][T32751] but task is already holding lock: [ 428.330362][T32751] ffff888065e08688 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: nl80211_del_interface+0x11c/0x350 [ 428.340265][T32751] [ 428.340265][T32751] which lock already depends on the new lock. [ 428.340265][T32751] [ 428.350661][T32751] [ 428.350661][T32751] the existing dependency chain (in reverse order) is: [ 428.359658][T32751] [ 428.359658][T32751] -> #1 (&rdev->wiphy.mtx){+.+.}-{3:3}: [ 428.367384][T32751] __mutex_lock_common+0x1e5/0x2400 [ 428.373186][T32751] mutex_lock_nested+0x17/0x20 [ 428.378459][T32751] ieee80211_open+0x140/0x200 [ 428.384096][T32751] __dev_open+0x2bf/0x430 [ 428.388987][T32751] dev_open+0xa7/0x180 [ 428.393742][T32751] team_add_slave+0x656/0x2840 [ 428.399011][T32751] do_setlink+0xe79/0x29d0 [ 428.403997][T32751] rtnl_newlink+0x15bb/0x1920 [ 428.409279][T32751] rtnetlink_rcv_msg+0x7f1/0xf10 [ 428.414728][T32751] netlink_rcv_skb+0x1e9/0x430 [ 428.420284][T32751] netlink_unicast+0x78f/0x940 [ 428.425651][T32751] netlink_sendmsg+0x8ba/0xbe0 [ 428.431012][T32751] ____sys_sendmsg+0x5be/0x8f0 [ 428.436352][T32751] ___sys_sendmsg+0x236/0x2e0 [ 428.441669][T32751] __se_sys_sendmsg+0x1b7/0x2a0 [ 428.447030][T32751] do_syscall_64+0x4c/0xa0 [ 428.451983][T32751] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 428.458407][T32751] [ 428.458407][T32751] -> #0 (team->team_lock_key){+.+.}-{3:3}: [ 428.466405][T32751] __lock_acquire+0x38f7/0x7d40 [ 428.471876][T32751] lock_acquire+0x19f/0x400 [ 428.476887][T32751] __mutex_lock_common+0x1e5/0x2400 [ 428.482592][T32751] mutex_lock_nested+0x17/0x20 [ 428.487874][T32751] team_del_slave+0x2d/0x1d0 [ 428.492983][T32751] team_device_event+0x38e/0x9e0 [ 428.498422][T32751] raw_notifier_call_chain+0xcb/0x160 [ 428.504377][T32751] unregister_netdevice_many+0x109b/0x1a40 [ 428.510707][T32751] unregister_netdevice_queue+0x2e1/0x320 [ 428.516938][T32751] _cfg80211_unregister_wdev+0x181/0x500 [ 428.523238][T32751] ieee80211_if_remove+0x1ad/0x2a0 [ 428.528873][T32751] ieee80211_del_iface+0x15/0x20 [ 428.534340][T32751] nl80211_del_interface+0x1ea/0x350 [ 428.540150][T32751] genl_rcv_msg+0xd0b/0xfa0 [ 428.545167][T32751] netlink_rcv_skb+0x1e9/0x430 [ 428.550437][T32751] genl_rcv+0x24/0x40 [ 428.554925][T32751] netlink_unicast+0x78f/0x940 [ 428.560196][T32751] netlink_sendmsg+0x8ba/0xbe0 [ 428.565552][T32751] ____sys_sendmsg+0x5be/0x8f0 [ 428.570930][T32751] ___sys_sendmsg+0x236/0x2e0 [ 428.576212][T32751] __se_sys_sendmsg+0x1b7/0x2a0 [ 428.581586][T32751] do_syscall_64+0x4c/0xa0 [ 428.586508][T32751] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 428.592936][T32751] [ 428.592936][T32751] other info that might help us debug this: [ 428.592936][T32751] [ 428.603343][T32751] Possible unsafe locking scenario: [ 428.603343][T32751] [ 428.610794][T32751] CPU0 CPU1 [ 428.616147][T32751] ---- ---- [ 428.621491][T32751] lock(&rdev->wiphy.mtx); [ 428.625977][T32751] lock(team->team_lock_key); [ 428.633258][T32751] lock(&rdev->wiphy.mtx); [ 428.640259][T32751] lock(team->team_lock_key); [ 428.645001][T32751] [ 428.645001][T32751] *** DEADLOCK *** [ 428.645001][T32751] [ 428.653126][T32751] 3 locks held by syz-executor306/32751: [ 428.658736][T32751] #0: ffffffff8d4aa890 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 [ 428.666900][T32751] #1: ffffffff8d44d808 (rtnl_mutex){+.+.}-{3:3}, at: nl80211_pre_doit+0x28/0x540 [ 428.676103][T32751] #2: ffff888065e08688 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: nl80211_del_interface+0x11c/0x350 [ 428.686376][T32751] [ 428.686376][T32751] stack backtrace: [ 428.692356][T32751] CPU: 0 PID: 32751 Comm: syz-executor306 Not tainted syzkaller #0 [ 428.700335][T32751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 428.710433][T32751] Call Trace: [ 428.713759][T32751] [ 428.716819][T32751] dump_stack_lvl+0x188/0x250 [ 428.721544][T32751] ? load_image+0x410/0x410 [ 428.726191][T32751] ? show_regs_print_info+0x20/0x20 [ 428.731687][T32751] ? print_circular_bug+0x12b/0x1a0 [ 428.737135][T32751] check_noncircular+0x2f8/0x400 [ 428.742071][T32751] ? print_deadlock_bug+0x5d0/0x5d0 [ 428.747256][T32751] ? lockdep_lock+0xf1/0x1f0 [ 428.751858][T32751] ? mark_lock+0x94/0x320 [ 428.756342][T32751] ? _find_first_zero_bit+0xd1/0xf0 [ 428.761888][T32751] __lock_acquire+0x38f7/0x7d40 [ 428.766742][T32751] ? verify_lock_unused+0x140/0x140 [ 428.771923][T32751] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 428.777906][T32751] ? verify_lock_unused+0x140/0x140 [ 428.783098][T32751] lock_acquire+0x19f/0x400 [ 428.787696][T32751] ? team_del_slave+0x2d/0x1d0 [ 428.792494][T32751] ? __might_sleep+0xf0/0xf0 [ 428.797135][T32751] ? read_lock_is_recursive+0x10/0x10 [ 428.802507][T32751] __mutex_lock_common+0x1e5/0x2400 [ 428.807690][T32751] ? team_del_slave+0x2d/0x1d0 [ 428.812438][T32751] ? __lock_acquire+0x7d40/0x7d40 [ 428.817450][T32751] ? __mutex_lock_common+0x435/0x2400 [ 428.822810][T32751] ? team_del_slave+0x2d/0x1d0 [ 428.827657][T32751] ? __local_bh_enable_ip+0x136/0x1c0 [ 428.833091][T32751] ? mutex_lock_io_nested+0x60/0x60 [ 428.838360][T32751] ? __mutex_unlock_slowpath+0x1b0/0x6c0 [ 428.843990][T32751] ? memset+0x1e/0x40 [ 428.848027][T32751] mutex_lock_nested+0x17/0x20 [ 428.852865][T32751] team_del_slave+0x2d/0x1d0 [ 428.857526][T32751] team_device_event+0x38e/0x9e0 [ 428.862448][T32751] ? ipmr_device_event+0x1e1/0x200 [ 428.867628][T32751] raw_notifier_call_chain+0xcb/0x160 [ 428.873004][T32751] unregister_netdevice_many+0x109b/0x1a40 [ 428.878804][T32751] ? alloc_netdev_mqs+0xc40/0xc40 [ 428.883812][T32751] ? kernfs_remove_by_name_ns+0xd0/0x100 [ 428.889464][T32751] ? __lock_acquire+0x7d40/0x7d40 [ 428.894474][T32751] unregister_netdevice_queue+0x2e1/0x320 [ 428.900175][T32751] ? list_netdevice+0x460/0x460 [ 428.905115][T32751] ? up_write+0x1b6/0x410 [ 428.909435][T32751] _cfg80211_unregister_wdev+0x181/0x500 [ 428.915053][T32751] ieee80211_if_remove+0x1ad/0x2a0 [ 428.920236][T32751] ieee80211_del_iface+0x15/0x20 [ 428.925156][T32751] nl80211_del_interface+0x1ea/0x350 [ 428.930428][T32751] genl_rcv_msg+0xd0b/0xfa0 [ 428.934919][T32751] ? genl_bind+0x370/0x370 [ 428.939325][T32751] ? __dev_queue_xmit+0x1b64/0x2e50 [ 428.944508][T32751] ? verify_lock_unused+0x140/0x140 [ 428.949702][T32751] ? dev_queue_xmit+0x20/0x20 [ 428.954360][T32751] ? nl80211_new_interface+0xe90/0xe90 [ 428.959806][T32751] netlink_rcv_skb+0x1e9/0x430 [ 428.964988][T32751] ? genl_bind+0x370/0x370 [ 428.969573][T32751] ? netlink_ack+0xb10/0xb10 [ 428.974162][T32751] ? down_read+0x1aa/0x2e0 [ 428.978583][T32751] genl_rcv+0x24/0x40 [ 428.982578][T32751] netlink_unicast+0x78f/0x940 [ 428.987900][T32751] netlink_sendmsg+0x8ba/0xbe0 [ 428.992673][T32751] ? netlink_getsockopt+0x570/0x570 [ 428.997868][T32751] ? aa_sock_msg_perm+0x94/0x150 [ 429.002958][T32751] ? apparmor_socket_sendmsg+0x88/0x230 [ 429.008491][T32751] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 429.013935][T32751] ? security_socket_sendmsg+0x7c/0xa0 [ 429.019425][T32751] ? netlink_getsockopt+0x570/0x570 [ 429.024612][T32751] ____sys_sendmsg+0x5be/0x8f0 [ 429.029546][T32751] ? __sys_sendmsg_sock+0x30/0x30 [ 429.034736][T32751] ? import_iovec+0x6f/0xa0 [ 429.039228][T32751] ___sys_sendmsg+0x236/0x2e0 [ 429.044316][T32751] ? __sys_sendmsg+0x290/0x290 [ 429.049114][T32751] __se_sys_sendmsg+0x1b7/0x2a0 [ 429.054136][T32751] ? __x64_sys_sendmsg+0x80/0x80 [ 429.059158][T32751] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 429.065154][T32751] ? lockdep_hardirqs_on+0x94/0x140 [ 429.070375][T32751] do_syscall_64+0x4c/0xa0 [ 429.074797][T32751] ? clear_bhb_loop+0x30/0x80 [ 429.079480][T32751] ? clear_bhb_loop+0x30/0x80 [ 429.084143][T32751] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 429.090050][T32751] RIP: 0033:0x7f6bd6e35d19 [ 429.094512][T32751] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 429.114158][T32751] RSP: 002b:00007ffcfdb4f198 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 429.122663][T32751] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f6bd6e35d19 [ 429.130709][T32751] RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000007 [ 429.138663][T32751] RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffcfdb4f220 [ 429.146618][T32751] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000031 [ 429.154694][T32751] R13: 0000000000000047 R14: 0000000000050012 R15: 0000000000000003 [ 429.162666][T32751] [ 429.170584][T32751] team0: Port device wlan1 removed