Warning: Permanently added '10.128.0.228' (ED25519) to the list of known hosts. 1970/01/01 00:00:33 parsed 1 programs syzkaller login: [ 34.311494][ T4325] cgroup: Unknown subsys name 'net' [ 34.590420][ T4325] cgroup: Unknown subsys name 'rlimit' [ 34.852590][ T4325] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 39.856541][ T4356] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 39.858599][ T4356] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 39.860021][ T4356] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 39.861457][ T4356] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 39.862807][ T4356] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 39.863992][ T4356] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 39.946576][ T1612] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 39.948531][ T1612] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 39.950310][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 39.956695][ T189] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 39.958678][ T189] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 39.960407][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 40.423718][ T4394] chnl_net:caif_netlink_parms(): no params data found [ 40.444266][ T4394] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.445564][ T4394] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.447138][ T4394] device bridge_slave_0 entered promiscuous mode [ 40.450936][ T4394] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.452078][ T4394] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.453668][ T4394] device bridge_slave_1 entered promiscuous mode [ 40.461769][ T4394] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 40.464130][ T4394] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 40.472886][ T4394] team0: Port device team_slave_0 added [ 40.474967][ T4394] team0: Port device team_slave_1 added [ 40.481922][ T4394] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 40.483013][ T4394] 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. [ 40.487224][ T4394] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 40.490471][ T4394] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 40.491529][ T4394] 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. [ 40.495760][ T4394] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 40.549235][ T4394] device hsr_slave_0 entered promiscuous mode [ 40.588170][ T4394] device hsr_slave_1 entered promiscuous mode [ 40.677826][ T4394] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 40.719670][ T4394] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 40.778408][ T4394] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 40.818603][ T4394] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 40.898883][ T4394] 8021q: adding VLAN 0 to HW filter on device bond0 [ 40.902865][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 40.904859][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 40.909282][ T4394] 8021q: adding VLAN 0 to HW filter on device team0 [ 40.917594][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 40.919202][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 40.921203][ T189] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.922374][ T189] bridge0: port 1(bridge_slave_0) entered forwarding state [ 40.925407][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 40.927018][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 40.930073][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 40.931893][ T189] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.933127][ T189] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.941983][ T4394] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 40.943731][ T4394] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 40.956888][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 40.958798][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 40.960774][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 40.962777][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 40.964395][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 40.966248][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 40.969090][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 40.970497][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 40.972434][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 40.973973][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 40.975743][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 40.978497][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 41.005522][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 41.006805][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 41.011898][ T4394] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 41.018137][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 41.019738][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 41.024833][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 41.026350][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 41.028668][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 41.030125][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 41.032861][ T4394] device veth0_vlan entered promiscuous mode [ 41.035972][ T4394] device veth1_vlan entered promiscuous mode [ 41.043292][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 41.044748][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 41.046486][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 41.049069][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 41.057135][ T4394] device veth0_macvtap entered promiscuous mode [ 41.061358][ T4394] device veth1_macvtap entered promiscuous mode [ 41.065973][ T4394] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 41.068713][ T4394] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 41.070056][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 41.071652][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 41.073168][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 41.074662][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 41.076299][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 41.079005][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 41.087199][ T4394] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 41.088726][ T4394] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 41.090137][ T4394] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 41.091579][ T4394] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:00:42 executed programs: 0 [ 42.513585][ T47] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 42.515358][ T47] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 42.516719][ T47] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 42.518924][ T47] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 42.520332][ T47] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 42.521518][ T47] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 42.800011][ T11] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 42.838493][ T4435] chnl_net:caif_netlink_parms(): no params data found [ 42.854836][ T4435] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.856061][ T4435] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.857644][ T4435] device bridge_slave_0 entered promiscuous mode [ 42.860083][ T4435] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.861207][ T4435] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.862572][ T4435] device bridge_slave_1 entered promiscuous mode [ 42.870303][ T4435] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 42.872691][ T4435] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 42.882516][ T4435] team0: Port device team_slave_0 added [ 42.884241][ T4435] team0: Port device team_slave_1 added [ 42.892892][ T4435] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 42.894035][ T4435] 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. [ 42.898337][ T4435] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 42.900551][ T4435] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 42.901636][ T4435] 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. [ 42.905821][ T4435] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 42.948391][ T4435] device hsr_slave_0 entered promiscuous mode [ 42.987574][ T4435] device hsr_slave_1 entered promiscuous mode [ 43.027384][ T4435] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 43.028749][ T4435] Cannot create hsr debugfs directory [ 44.558171][ T47] Bluetooth: hci0: command 0x0409 tx timeout [ 45.548657][ T11] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 46.637316][ T47] Bluetooth: hci0: command 0x041b tx timeout [ 46.758499][ T11] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 46.889155][ T11] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 47.958396][ T4435] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 48.050238][ T4435] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 48.140281][ T4435] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 48.188338][ T4435] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 48.310579][ T4435] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.314188][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 48.315817][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 48.319165][ T4435] 8021q: adding VLAN 0 to HW filter on device team0 [ 48.321584][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 48.323261][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 48.324739][ T189] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.325808][ T189] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.327248][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 48.361454][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 48.363183][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 48.364623][ T189] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.366031][ T189] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.374981][ T4435] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 48.376614][ T4435] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 48.379783][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 48.381691][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 48.383351][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 48.384988][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 48.386502][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 48.388567][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 48.390043][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 48.391583][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 48.393174][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 48.394683][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 48.396195][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 48.399000][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 48.482095][ T11] device hsr_slave_0 left promiscuous mode [ 48.507708][ T11] device hsr_slave_1 left promiscuous mode [ 48.587530][ T11] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 48.588672][ T11] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 48.591260][ T11] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 48.592497][ T11] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 48.593898][ T11] device bridge_slave_1 left promiscuous mode [ 48.595419][ T11] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.648241][ T11] device bridge_slave_0 left promiscuous mode [ 48.649383][ T11] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.717307][ T47] Bluetooth: hci0: command 0x040f tx timeout [ 48.767765][ T11] device veth1_macvtap left promiscuous mode [ 48.768797][ T11] device veth0_macvtap left promiscuous mode [ 48.769733][ T11] device veth1_vlan left promiscuous mode [ 48.770659][ T11] device veth0_vlan left promiscuous mode [ 50.558471][ T11] team0 (unregistering): Port device team_slave_1 removed [ 50.718229][ T11] team0 (unregistering): Port device team_slave_0 removed [ 50.797316][ T47] Bluetooth: hci0: command 0x0419 tx timeout [ 50.908247][ T11] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 51.157701][ T11] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 53.818185][ T11] bond0 (unregistering): Released all slaves [ 54.055804][ T4435] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 54.058138][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 54.059421][ T189] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 54.065170][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 54.066861][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 54.072942][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 54.074516][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 54.075996][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 54.077465][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 54.079765][ T4435] device veth0_vlan entered promiscuous mode [ 54.082766][ T4435] device veth1_vlan entered promiscuous mode [ 54.093174][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 54.094724][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 54.096176][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 54.098001][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 54.101154][ T4435] device veth0_macvtap entered promiscuous mode [ 54.103419][ T4435] device veth1_macvtap entered promiscuous mode [ 54.109138][ T4435] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 54.110326][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 54.111993][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 54.113464][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 54.114929][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 54.118366][ T4435] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 54.119583][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 54.121157][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 54.123514][ T4435] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.124929][ T4435] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.126362][ T4435] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.127951][ T4435] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.147130][ T4424] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.150011][ T4424] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.151758][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 54.158915][ T1612] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.160125][ T1612] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.161883][ T4424] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 54.205822][ T4424] [ 54.206278][ T4424] ============================================ [ 54.207188][ T4424] WARNING: possible recursive locking detected [ 54.208166][ T4424] syzkaller #0 Not tainted [ 54.208875][ T4424] -------------------------------------------- [ 54.209834][ T4424] kworker/u4:6/4424 is trying to acquire lock: [ 54.210812][ T4424] ffff0000d4bf21e8 (rlock-AF_UNIX){+.+.}-{2:2}, at: unix_collect_skb+0x140/0x480 [ 54.212326][ T4424] [ 54.212326][ T4424] but task is already holding lock: [ 54.213532][ T4424] ffff0000d4bf11e8 (rlock-AF_UNIX){+.+.}-{2:2}, at: unix_collect_skb+0xa8/0x480 [ 54.215031][ T4424] [ 54.215031][ T4424] other info that might help us debug this: [ 54.216352][ T4424] Possible unsafe locking scenario: [ 54.216352][ T4424] [ 54.217599][ T4424] CPU0 [ 54.218130][ T4424] ---- [ 54.218658][ T4424] lock(rlock-AF_UNIX); [ 54.219332][ T4424] lock(rlock-AF_UNIX); [ 54.219973][ T4424] [ 54.219973][ T4424] *** DEADLOCK *** [ 54.219973][ T4424] [ 54.221319][ T4424] May be due to missing lock nesting notation [ 54.221319][ T4424] [ 54.222624][ T4424] 4 locks held by kworker/u4:6/4424: [ 54.223471][ T4424] #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 [ 54.225238][ T4424] #1: ffff800020c17c20 (unix_gc_work){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 [ 54.226822][ T4424] #2: ffff800017829458 (unix_gc_lock){+.+.}-{2:2}, at: __unix_gc+0xb8/0x1334 [ 54.228323][ T4424] #3: ffff0000d4bf11e8 (rlock-AF_UNIX){+.+.}-{2:2}, at: unix_collect_skb+0xa8/0x480 [ 54.229947][ T4424] [ 54.229947][ T4424] stack backtrace: [ 54.230893][ T4424] CPU: 1 PID: 4424 Comm: kworker/u4:6 Not tainted syzkaller #0 [ 54.232216][ T4424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 54.233767][ T4424] Workqueue: events_unbound __unix_gc [ 54.234676][ T4424] Call trace: [ 54.235171][ T4424] dump_backtrace+0x1c8/0x1f4 [ 54.236008][ T4424] show_stack+0x2c/0x3c [ 54.236693][ T4424] __dump_stack+0x30/0x40 [ 54.237390][ T4424] dump_stack_lvl+0xf8/0x160 [ 54.238127][ T4424] dump_stack+0x1c/0x5c [ 54.238781][ T4424] __lock_acquire+0x18b4/0x6544 [ 54.239478][ T4424] lock_acquire+0x20c/0x644 [ 54.240132][ T4424] _raw_spin_lock+0x54/0x6c [ 54.240843][ T4424] unix_collect_skb+0x140/0x480 [ 54.241658][ T4424] __unix_gc+0xd18/0x1334 [ 54.242384][ T4424] process_one_work+0x7f4/0x13a8 [ 54.243160][ T4424] worker_thread+0x8c8/0xfbc [ 54.243914][ T4424] kthread+0x250/0x2d8 [ 54.244582][ T4424] ret_from_fork+0x10/0x20