Warning: Permanently added '10.128.0.157' (ED25519) to the list of known hosts. 2026/08/09 05:37:14 parsed 1 programs 2026/08/09 05:37:14 serving rpc on tcp://39069 [ 63.083896][ T4198] cgroup: Unknown subsys name 'net' [ 63.228727][ T4198] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 64.551979][ T4198] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 67.294251][ T4245] chnl_net:caif_netlink_parms(): no params data found [ 67.354765][ T4245] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.362554][ T4245] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.370807][ T4245] device bridge_slave_0 entered promiscuous mode [ 67.380840][ T4245] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.388039][ T4245] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.396100][ T4245] device bridge_slave_1 entered promiscuous mode [ 67.421008][ T4245] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.432615][ T4245] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.458858][ T4245] team0: Port device team_slave_0 added [ 67.466565][ T4245] team0: Port device team_slave_1 added [ 67.486432][ T4245] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 67.493456][ T4245] 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. [ 67.519416][ T4245] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 67.532458][ T4245] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 67.539504][ T4245] 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. [ 67.565586][ T4245] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 67.602270][ T4245] device hsr_slave_0 entered promiscuous mode [ 67.609774][ T4245] device hsr_slave_1 entered promiscuous mode [ 67.726684][ T4245] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.737158][ T4245] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.747720][ T4245] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.760159][ T4245] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.807969][ T4245] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.815211][ T4245] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.825127][ T4245] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.832235][ T4245] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.910567][ T4245] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.928115][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.948085][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.960378][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.968530][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 67.981334][ T4245] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.992356][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.001649][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.008758][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.019463][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.029091][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.036179][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.056808][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.066888][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.077990][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.090585][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.102227][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.114202][ T4245] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.185073][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.192569][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.204777][ T4245] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.221577][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.256865][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.266080][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.280971][ T4245] device veth0_vlan entered promiscuous mode [ 68.296177][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.304182][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.325161][ T4245] device veth1_vlan entered promiscuous mode [ 68.346356][ T3073] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.355806][ T3073] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.364292][ T3073] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 68.372910][ T3073] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.384301][ T4245] device veth0_macvtap entered promiscuous mode [ 68.393731][ T4245] device veth1_macvtap entered promiscuous mode [ 68.424851][ T4245] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.434486][ T3073] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.442570][ T3073] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 68.452086][ T3073] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 68.461468][ T3073] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.472252][ T4245] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 68.482525][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 68.491308][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.513108][ T4245] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.522144][ T4245] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.531108][ T4245] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.539958][ T4245] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.792496][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.800821][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.820534][ T3073] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 68.833017][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.841196][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.850211][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/08/09 05:37:22 executed programs: 0 [ 70.100640][ T4301] chnl_net:caif_netlink_parms(): no params data found [ 70.155977][ T4301] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.163238][ T4301] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.172076][ T4301] device bridge_slave_0 entered promiscuous mode [ 70.180778][ T4301] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.188299][ T4301] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.196025][ T4301] device bridge_slave_1 entered promiscuous mode [ 70.219931][ T4301] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.231678][ T4301] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.259260][ T4301] team0: Port device team_slave_0 added [ 70.268991][ T4301] team0: Port device team_slave_1 added [ 70.289251][ T4301] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.296636][ T4301] 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. [ 70.323241][ T4301] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.339106][ T4301] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.346122][ T4301] 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. [ 70.372195][ T4301] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.407129][ T4301] device hsr_slave_0 entered promiscuous mode [ 70.416695][ T4301] device hsr_slave_1 entered promiscuous mode [ 70.423524][ T4301] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 70.431470][ T4301] Cannot create hsr debugfs directory [ 70.513105][ T4301] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.295785][ T1431] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.302580][ T1431] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.024244][ T7] Bluetooth: hci0: command 0x0409 tx timeout [ 74.043743][ T4301] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.093753][ T1108] Bluetooth: hci0: command 0x041b tx timeout [ 74.109364][ T4301] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.199387][ T4301] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.317338][ T4301] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.337283][ T4301] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.346086][ T4301] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.354908][ T4301] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.411217][ T4301] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.424962][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.433606][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.443754][ T4301] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.469522][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 74.479344][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.487834][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.494926][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.505490][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 74.529795][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 74.538488][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.548803][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.555920][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.566883][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 74.593183][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 74.604802][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 74.614646][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.623218][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.635031][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 74.645481][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.658910][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 74.668890][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.679718][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 74.688397][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.698763][ T4301] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.799153][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.807105][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.826240][ T4301] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.843145][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.852120][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.870216][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.878722][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.888342][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.896851][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.913064][ T4301] device veth0_vlan entered promiscuous mode [ 74.926423][ T642] device hsr_slave_0 left promiscuous mode [ 74.932827][ T642] device hsr_slave_1 left promiscuous mode [ 74.940155][ T642] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 74.947907][ T642] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 74.957115][ T642] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 74.964646][ T642] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 74.972282][ T642] device bridge_slave_1 left promiscuous mode [ 74.979399][ T642] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.991552][ T642] device bridge_slave_0 left promiscuous mode [ 74.999027][ T642] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.015898][ T642] device veth1_macvtap left promiscuous mode [ 75.022153][ T642] device veth0_macvtap left promiscuous mode [ 75.028264][ T642] device veth1_vlan left promiscuous mode [ 75.035035][ T642] device veth0_vlan left promiscuous mode [ 75.170310][ T642] team0 (unregistering): Port device team_slave_1 removed [ 75.184047][ T642] team0 (unregistering): Port device team_slave_0 removed [ 75.197064][ T642] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 75.210615][ T642] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 75.259636][ T642] bond0 (unregistering): Released all slaves [ 75.331918][ T4301] device veth1_vlan entered promiscuous mode [ 75.351955][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.360840][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.369404][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 75.378327][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.388905][ T4301] device veth0_macvtap entered promiscuous mode [ 75.399813][ T4301] device veth1_macvtap entered promiscuous mode [ 75.423065][ T4301] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.431427][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.440639][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 75.448697][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.458856][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.471148][ T4301] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.479123][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.490046][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.501115][ T4301] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.511268][ T4301] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.520050][ T4301] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.528778][ T4301] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.592695][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.602497][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.610600][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready 2026/08/09 05:37:28 executed programs: 2 [ 75.637144][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.645048][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.652510][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 76.173671][ T4258] Bluetooth: hci0: command 0x040f tx timeout [ 78.253538][ T4258] Bluetooth: hci0: command 0x0419 tx timeout [ 78.687428][ T4314] nci: __nci_request: wait_for_completion_interruptible_timeout failed -512 [ 78.838732][ T4325] [ 78.841096][ T4325] ====================================================== [ 78.848116][ T4325] WARNING: possible circular locking dependency detected [ 78.855123][ T4325] syzkaller #0 Not tainted [ 78.859513][ T4325] ------------------------------------------------------ [ 78.866524][ T4325] syz.0.18/4325 is trying to acquire lock: [ 78.872324][ T4325] ffff888025424350 (&ndev->req_lock){+.+.}-{3:3}, at: nci_start_poll+0x8c8/0xcc0 [ 78.881442][ T4325] [ 78.881442][ T4325] but task is already holding lock: [ 78.888792][ T4325] ffff8880254255d8 (&genl_data->genl_data_mutex){+.+.}-{3:3}, at: nfc_genl_start_poll+0x1c9/0x340 [ 78.899388][ T4325] [ 78.899388][ T4325] which lock already depends on the new lock. [ 78.899388][ T4325] [ 78.909781][ T4325] [ 78.909781][ T4325] the existing dependency chain (in reverse order) is: [ 78.918777][ T4325] [ 78.918777][ T4325] -> #3 (&genl_data->genl_data_mutex){+.+.}-{3:3}: [ 78.927441][ T4325] __mutex_lock_common+0x1e5/0x2400 [ 78.933150][ T4325] mutex_lock_nested+0x17/0x20 [ 78.938412][ T4325] nfc_urelease_event_work+0x120/0x310 [ 78.944378][ T4325] process_one_work+0x867/0xff0 [ 78.949747][ T4325] worker_thread+0xad7/0x12a0 [ 78.954923][ T4325] kthread+0x42e/0x520 [ 78.959495][ T4325] ret_from_fork+0x1f/0x30 [ 78.964410][ T4325] [ 78.964410][ T4325] -> #2 (nfc_devlist_mutex){+.+.}-{3:3}: [ 78.972208][ T4325] __mutex_lock_common+0x1e5/0x2400 [ 78.977933][ T4325] mutex_lock_nested+0x17/0x20 [ 78.983222][ T4325] nfc_register_device+0x38/0x300 [ 78.988768][ T4325] nci_register_device+0x89f/0x9f0 [ 78.994384][ T4325] virtual_ncidev_open+0x55/0xc0 [ 78.999824][ T4325] misc_open+0x31f/0x390 [ 79.004568][ T4325] chrdev_open+0x585/0x5f0 [ 79.009503][ T4325] do_dentry_open+0x7f7/0xf90 [ 79.014690][ T4325] path_openat+0x2718/0x2fb0 [ 79.019780][ T4325] do_filp_open+0x1df/0x400 [ 79.024788][ T4325] do_sys_openat2+0x14b/0x500 [ 79.029965][ T4325] __x64_sys_openat+0x135/0x160 [ 79.035323][ T4325] do_syscall_64+0x4c/0xa0 [ 79.040249][ T4325] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.046647][ T4325] [ 79.046647][ T4325] -> #1 (nci_mutex){+.+.}-{3:3}: [ 79.053746][ T4325] __mutex_lock_common+0x1e5/0x2400 [ 79.059450][ T4325] mutex_lock_nested+0x17/0x20 [ 79.064725][ T4325] virtual_nci_close+0x13/0x40 [ 79.069991][ T4325] nci_dev_up+0x976/0xd90 [ 79.074826][ T4325] nfc_dev_up+0x15d/0x310 [ 79.079657][ T4325] nfc_genl_dev_up+0x85/0xd0 [ 79.084750][ T4325] genl_rcv_msg+0xd0b/0xfa0 [ 79.089761][ T4325] netlink_rcv_skb+0x1e9/0x430 [ 79.095026][ T4325] genl_rcv+0x24/0x40 [ 79.099516][ T4325] netlink_unicast+0x78f/0x940 [ 79.104792][ T4325] netlink_sendmsg+0x8ba/0xbe0 [ 79.110141][ T4325] ____sys_sendmsg+0x5be/0x8f0 [ 79.115405][ T4325] ___sys_sendmsg+0x236/0x2e0 [ 79.120583][ T4325] __se_sys_sendmsg+0x1b7/0x2a0 [ 79.125937][ T4325] do_syscall_64+0x4c/0xa0 [ 79.130853][ T4325] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.137258][ T4325] [ 79.137258][ T4325] -> #0 (&ndev->req_lock){+.+.}-{3:3}: [ 79.144876][ T4325] __lock_acquire+0x2c66/0x7b50 [ 79.150230][ T4325] lock_acquire+0x19e/0x400 [ 79.155235][ T4325] __mutex_lock_common+0x1e5/0x2400 [ 79.160958][ T4325] mutex_lock_nested+0x17/0x20 [ 79.166222][ T4325] nci_start_poll+0x8c8/0xcc0 [ 79.171400][ T4325] nfc_start_poll+0x141/0x2c0 [ 79.176602][ T4325] nfc_genl_start_poll+0x1d7/0x340 [ 79.182234][ T4325] genl_rcv_msg+0xd0b/0xfa0 [ 79.187335][ T4325] netlink_rcv_skb+0x1e9/0x430 [ 79.192605][ T4325] genl_rcv+0x24/0x40 [ 79.197087][ T4325] netlink_unicast+0x78f/0x940 [ 79.202356][ T4325] netlink_sendmsg+0x8ba/0xbe0 [ 79.207644][ T4325] ____sys_sendmsg+0x5be/0x8f0 [ 79.212910][ T4325] ___sys_sendmsg+0x236/0x2e0 [ 79.218092][ T4325] __se_sys_sendmsg+0x1b7/0x2a0 [ 79.223447][ T4325] do_syscall_64+0x4c/0xa0 [ 79.228380][ T4325] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.234770][ T4325] [ 79.234770][ T4325] other info that might help us debug this: [ 79.234770][ T4325] [ 79.244977][ T4325] Chain exists of: [ 79.244977][ T4325] &ndev->req_lock --> nfc_devlist_mutex --> &genl_data->genl_data_mutex [ 79.244977][ T4325] [ 79.259200][ T4325] Possible unsafe locking scenario: [ 79.259200][ T4325] [ 79.266647][ T4325] CPU0 CPU1 [ 79.271989][ T4325] ---- ---- [ 79.277331][ T4325] lock(&genl_data->genl_data_mutex); [ 79.282789][ T4325] lock(nfc_devlist_mutex); [ 79.289876][ T4325] lock(&genl_data->genl_data_mutex); [ 79.297851][ T4325] lock(&ndev->req_lock); [ 79.302255][ T4325] [ 79.302255][ T4325] *** DEADLOCK *** [ 79.302255][ T4325] [ 79.310392][ T4325] 4 locks held by syz.0.18/4325: [ 79.315330][ T4325] #0: ffffffff8d4aa0b0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 [ 79.323484][ T4325] #1: ffffffff8d4a9f08 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x161/0xfa0 [ 79.332423][ T4325] #2: ffff8880254255d8 (&genl_data->genl_data_mutex){+.+.}-{3:3}, at: nfc_genl_start_poll+0x1c9/0x340 [ 79.343447][ T4325] #3: ffff888025425190 (&dev->mutex){....}-{3:3}, at: nfc_start_poll+0x4f/0x2c0 [ 79.352604][ T4325] [ 79.352604][ T4325] stack backtrace: [ 79.358484][ T4325] CPU: 1 PID: 4325 Comm: syz.0.18 Not tainted syzkaller #0 [ 79.365700][ T4325] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 79.375744][ T4325] Call Trace: [ 79.379010][ T4325] [ 79.381926][ T4325] dump_stack_lvl+0x188/0x250 [ 79.386587][ T4325] ? load_image+0x410/0x410 [ 79.391077][ T4325] ? show_regs_print_info+0x20/0x20 [ 79.396272][ T4325] ? print_circular_bug+0x12b/0x1a0 [ 79.401459][ T4325] check_noncircular+0x296/0x330 [ 79.406384][ T4325] ? add_chain_block+0x9b0/0x9b0 [ 79.411303][ T4325] ? lockdep_lock+0xf1/0x1f0 [ 79.415878][ T4325] ? mark_lock+0x94/0x320 [ 79.420189][ T4325] ? mark_lock+0x94/0x320 [ 79.424502][ T4325] ? _find_first_zero_bit+0xd1/0xf0 [ 79.429684][ T4325] __lock_acquire+0x2c66/0x7b50 [ 79.434524][ T4325] ? __lock_acquire+0x7b50/0x7b50 [ 79.439549][ T4325] ? verify_lock_unused+0x140/0x140 [ 79.444732][ T4325] ? verify_lock_unused+0x140/0x140 [ 79.449915][ T4325] ? look_up_lock_class+0x71/0x110 [ 79.455015][ T4325] ? register_lock_class+0xc0/0x880 [ 79.460207][ T4325] ? __lock_acquire+0x13dc/0x7b50 [ 79.465247][ T4325] lock_acquire+0x19e/0x400 [ 79.469735][ T4325] ? nci_start_poll+0x8c8/0xcc0 [ 79.474575][ T4325] ? __might_sleep+0xf0/0xf0 [ 79.479149][ T4325] ? read_lock_is_recursive+0x10/0x10 [ 79.484508][ T4325] __mutex_lock_common+0x1e5/0x2400 [ 79.489713][ T4325] ? nci_start_poll+0x8c8/0xcc0 [ 79.494564][ T4325] ? mark_lock+0x94/0x320 [ 79.498888][ T4325] ? nci_start_poll+0x8c8/0xcc0 [ 79.503744][ T4325] ? mutex_lock_io_nested+0x60/0x60 [ 79.508928][ T4325] ? __mutex_trylock_common+0x15c/0x260 [ 79.514457][ T4325] mutex_lock_nested+0x17/0x20 [ 79.519221][ T4325] nci_start_poll+0x8c8/0xcc0 [ 79.523885][ T4325] ? nci_dev_down+0x40/0x40 [ 79.528368][ T4325] ? __mutex_lock_common+0x435/0x2400 [ 79.533740][ T4325] ? klist_iter_exit+0xbc/0xf0 [ 79.538487][ T4325] ? class_find_device+0x232/0x290 [ 79.543583][ T4325] ? nfc_start_poll+0x4f/0x2c0 [ 79.548350][ T4325] ? class_for_each_device+0x290/0x290 [ 79.553789][ T4325] ? nfc_genl_start_poll+0x1c9/0x340 [ 79.559081][ T4325] ? mutex_lock_io_nested+0x60/0x60 [ 79.564285][ T4325] ? nfc_get_device+0x82/0xd0 [ 79.568955][ T4325] ? nfc_release+0x2e0/0x2e0 [ 79.573535][ T4325] nfc_start_poll+0x141/0x2c0 [ 79.578196][ T4325] nfc_genl_start_poll+0x1d7/0x340 [ 79.583284][ T4325] genl_rcv_msg+0xd0b/0xfa0 [ 79.587771][ T4325] ? genl_bind+0x370/0x370 [ 79.592166][ T4325] ? verify_lock_unused+0x140/0x140 [ 79.597363][ T4325] ? verify_lock_unused+0x140/0x140 [ 79.602556][ T4325] ? nfc_genl_dev_down+0xd0/0xd0 [ 79.607478][ T4325] netlink_rcv_skb+0x1e9/0x430 [ 79.612224][ T4325] ? genl_bind+0x370/0x370 [ 79.616617][ T4325] ? netlink_ack+0xb10/0xb10 [ 79.621191][ T4325] ? down_read+0x1aa/0x2e0 [ 79.625589][ T4325] genl_rcv+0x24/0x40 [ 79.629549][ T4325] netlink_unicast+0x78f/0x940 [ 79.634294][ T4325] netlink_sendmsg+0x8ba/0xbe0 [ 79.639045][ T4325] ? netlink_getsockopt+0x570/0x570 [ 79.644413][ T4325] ? aa_sock_msg_perm+0x94/0x150 [ 79.649347][ T4325] ? apparmor_socket_sendmsg+0x88/0x230 [ 79.654885][ T4325] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 79.660157][ T4325] ? security_socket_sendmsg+0x7c/0xa0 [ 79.665599][ T4325] ? netlink_getsockopt+0x570/0x570 [ 79.670780][ T4325] ____sys_sendmsg+0x5be/0x8f0 [ 79.675543][ T4325] ? __sys_sendmsg_sock+0x30/0x30 [ 79.680549][ T4325] ? import_iovec+0x6f/0xa0 [ 79.685034][ T4325] ___sys_sendmsg+0x236/0x2e0 [ 79.689692][ T4325] ? __sys_sendmsg+0x290/0x290 [ 79.694455][ T4325] __se_sys_sendmsg+0x1b7/0x2a0 [ 79.699313][ T4325] ? __x64_sys_sendmsg+0x80/0x80 [ 79.704245][ T4325] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 79.710213][ T4325] ? lockdep_hardirqs_on+0x94/0x140 [ 79.715390][ T4325] do_syscall_64+0x4c/0xa0 [ 79.719802][ T4325] ? clear_bhb_loop+0x30/0x80 [ 79.724480][ T4325] ? clear_bhb_loop+0x30/0x80 [ 79.729138][ T4325] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 79.735022][ T4325] RIP: 0033:0x7f5178b470d9 [ 79.739428][ T4325] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 79.759013][ T4325] RSP: 002b:00007f5178186028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 79.767408][ T4325] RAX: ffffffffffffffda RBX: 00007f5178dcf090 RCX: 00007f5178b470d9 [ 79.775361][ T4325] RDX: 0000000000000000 RSI: 0000200000000180 RDI: 0000000000000005 [ 79.783317][ T4325] RBP: 00007f5178bde024 R08: 0000000000000000 R09: 0000000000000000 [ 79.791276][ T4325] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 79.799687][ T4325] R13: 00007f5178dcf128 R14: 00007f5178dcf090 R15: 00007ffedfe39be8 [ 79.807651][ T4325] [ 81.732363][ T4325] nci: __nci_request: wait_for_completion_interruptible_timeout failed -512 [ 81.742284][ T4320] nci: __nci_request: wait_for_completion_interruptible_timeout failed -512 2026/08/09 05:37:34 executed programs: 4 [ 84.773064][ T4332] nci: __nci_request: wait_for_completion_interruptible_timeout failed -512 [ 84.783027][ T4327] nci: __nci_request: wait_for_completion_interruptible_timeout failed -512 [ 86.654253][ T1111] cfg80211: failed to load regulatory.db [ 87.804563][ T4339] nci: __nci_request: wait_for_completion_interruptible_timeout failed -512 [ 87.814001][ T4334] nci: __nci_request: wait_for_completion_interruptible_timeout failed -512 2026/08/09 05:37:40 executed programs: 6