no interfaces have a carrier
[ 55.295539][ T3855] 8021q: adding VLAN 0 to HW filter on device bond0
[ 55.308875][ T3855] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting crond: OK
Starting sshd: OK
syzkaller
Warning: Permanently added '10.128.0.175' (ED25519) to the list of known hosts.
2026/06/19 03:54:32 parsed 1 programs
2026/06/19 03:54:32 serving rpc on tcp://34273
syzkaller login: [ 83.411294][ T4202] cgroup: Unknown subsys name 'net'
[ 83.546201][ T4202] cgroup: Unknown subsys name 'rlimit'
Setting up swapspace version 1, size = 127995904 bytes
[ 85.197256][ T4202] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS
[ 89.203210][ T3050] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 89.211369][ T3050] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 89.223600][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 89.250060][ T3050] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 89.257935][ T3050] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 89.265875][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
[ 89.604295][ T4288] chnl_net:caif_netlink_parms(): no params data found
[ 89.657798][ T4288] bridge0: port 1(bridge_slave_0) entered blocking state
[ 89.665773][ T4288] bridge0: port 1(bridge_slave_0) entered disabled state
[ 89.675062][ T4288] device bridge_slave_0 entered promiscuous mode
[ 89.696575][ T4288] bridge0: port 2(bridge_slave_1) entered blocking state
[ 89.704074][ T4288] bridge0: port 2(bridge_slave_1) entered disabled state
[ 89.712837][ T4288] device bridge_slave_1 entered promiscuous mode
[ 89.737670][ T4288] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 89.749827][ T4288] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 89.793160][ T4288] team0: Port device team_slave_0 added
[ 89.801934][ T4288] team0: Port device team_slave_1 added
[ 89.824394][ T4288] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 89.831816][ T4288] 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.
[ 89.858595][ T4288] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 89.891929][ T4288] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 89.898926][ T4288] 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.
[ 89.925280][ T4288] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 89.958479][ T4288] device hsr_slave_0 entered promiscuous mode
[ 89.966540][ T4288] device hsr_slave_1 entered promiscuous mode
[ 90.125815][ T4288] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 90.138705][ T4288] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 90.148248][ T4288] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 90.159527][ T4288] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 90.193680][ T4288] bridge0: port 2(bridge_slave_1) entered blocking state
[ 90.201063][ T4288] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 90.209562][ T4288] bridge0: port 1(bridge_slave_0) entered blocking state
[ 90.216703][ T4288] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 90.287300][ T4288] 8021q: adding VLAN 0 to HW filter on device bond0
[ 90.298272][ T3050] bridge0: port 1(bridge_slave_0) entered disabled state
[ 90.310566][ T3050] bridge0: port 2(bridge_slave_1) entered disabled state
[ 90.331623][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[ 90.341074][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 90.352744][ T4288] 8021q: adding VLAN 0 to HW filter on device team0
[ 90.364307][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
[ 90.374093][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 90.383800][ T3050] bridge0: port 1(bridge_slave_0) entered blocking state
[ 90.390978][ T3050] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 90.410644][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
[ 90.421542][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 90.430941][ T3050] bridge0: port 2(bridge_slave_1) entered blocking state
[ 90.438200][ T3050] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 90.451120][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready
[ 90.471822][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready
[ 90.482579][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready
[ 90.493480][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[ 90.508079][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready
[ 90.521710][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[ 90.540803][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[ 90.549477][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready
[ 90.559476][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 90.568813][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready
[ 90.580928][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 90.595420][ T4288] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[ 90.747991][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 90.759248][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 90.775340][ T4288] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 90.798891][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready
[ 90.809943][ T3050] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 90.835058][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready
[ 90.844255][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 90.857159][ T4288] device veth0_vlan entered promiscuous mode
[ 90.866586][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 90.875525][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 90.894692][ T4288] device veth1_vlan entered promiscuous mode
[ 90.924800][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[ 90.934872][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[ 90.944049][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready
[ 90.954428][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 90.966831][ T4288] device veth0_macvtap entered promiscuous mode
[ 90.978821][ T4288] device veth1_macvtap entered promiscuous mode
[ 91.004066][ T4288] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 91.012675][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[ 91.023131][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready
[ 91.031632][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
[ 91.040997][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 91.055112][ T4288] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 91.063383][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
[ 91.073406][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 91.088475][ T4288] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 91.097871][ T4288] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 91.108432][ T4288] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 91.118302][ T4288] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 91.230788][ T4288] syz-executor (4288) used greatest stack depth: 20944 bytes left
2026/06/19 03:54:43 executed programs: 0
[ 92.015450][ T4304] chnl_net:caif_netlink_parms(): no params data found
[ 92.086674][ T401] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 92.104071][ T4304] bridge0: port 1(bridge_slave_0) entered blocking state
[ 92.111969][ T4304] bridge0: port 1(bridge_slave_0) entered disabled state
[ 92.120717][ T4304] device bridge_slave_0 entered promiscuous mode
[ 92.130816][ T4304] bridge0: port 2(bridge_slave_1) entered blocking state
[ 92.138181][ T4304] bridge0: port 2(bridge_slave_1) entered disabled state
[ 92.147173][ T4304] device bridge_slave_1 entered promiscuous mode
[ 92.173437][ T4304] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 92.187124][ T4304] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 92.218893][ T4304] team0: Port device team_slave_0 added
[ 92.228130][ T4304] team0: Port device team_slave_1 added
[ 92.251416][ T4304] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 92.258708][ T4304] 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.
[ 92.285842][ T4304] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 92.300207][ T4304] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 92.307305][ T4304] 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.
[ 92.333747][ T4304] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 92.374647][ T4304] device hsr_slave_0 entered promiscuous mode
[ 92.381937][ T4304] device hsr_slave_1 entered promiscuous mode
[ 92.389771][ T4304] debugfs: Directory 'hsr0' with parent 'hsr' already present!
[ 92.398342][ T4304] Cannot create hsr debugfs directory
[ 93.891046][ T7] Bluetooth: hci0: command 0x0409 tx timeout
[ 94.537468][ T401] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 95.959560][ T13] Bluetooth: hci0: command 0x041b tx timeout
[ 96.510202][ T401] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 96.603633][ T401] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 97.432930][ T4304] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 97.463764][ T4304] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 97.473758][ T4304] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 97.485201][ T4304] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 97.552908][ T4304] 8021q: adding VLAN 0 to HW filter on device bond0
[ 97.583465][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[ 97.591798][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 97.603772][ T4304] 8021q: adding VLAN 0 to HW filter on device team0
[ 97.614689][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
[ 97.623740][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 97.633142][ T9] bridge0: port 1(bridge_slave_0) entered blocking state
[ 97.640421][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 97.650253][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
[ 97.686057][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
[ 97.695774][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 97.706473][ T3103] bridge0: port 2(bridge_slave_1) entered blocking state
[ 97.713879][ T3103] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 97.725938][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready
[ 97.740948][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready
[ 97.776062][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready
[ 97.785398][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[ 97.801024][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[ 97.809701][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready
[ 97.818880][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[ 97.827751][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready
[ 97.837138][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 97.866853][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready
[ 97.876272][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 97.887436][ T4304] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[ 98.011855][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 98.019982][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 98.032764][ T4304] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 98.044886][ T4243] Bluetooth: hci0: command 0x040f tx timeout
[ 98.068629][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready
[ 98.080365][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 98.113155][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready
[ 98.122603][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 98.134329][ T4304] device veth0_vlan entered promiscuous mode
[ 98.142194][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 98.150909][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 98.171610][ T4304] device veth1_vlan entered promiscuous mode
[ 98.191004][ T401] device hsr_slave_0 left promiscuous mode
[ 98.197764][ T401] device hsr_slave_1 left promiscuous mode
[ 98.204730][ T401] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 98.213935][ T401] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 98.223844][ T401] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 98.231484][ T401] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 98.239815][ T401] device bridge_slave_1 left promiscuous mode
[ 98.246892][ T401] bridge0: port 2(bridge_slave_1) entered disabled state
[ 98.262571][ T401] device bridge_slave_0 left promiscuous mode
[ 98.268860][ T401] bridge0: port 1(bridge_slave_0) entered disabled state
[ 98.289103][ T401] device veth1_macvtap left promiscuous mode
[ 98.295955][ T401] device veth0_macvtap left promiscuous mode
[ 98.302331][ T401] device veth1_vlan left promiscuous mode
[ 98.308931][ T401] device veth0_vlan left promiscuous mode
[ 98.496362][ T401] team0 (unregistering): Port device team_slave_1 removed
[ 98.515820][ T401] team0 (unregistering): Port device team_slave_0 removed
[ 98.533333][ T401] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 98.547718][ T401] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 98.614144][ T401] bond0 (unregistering): Released all slaves
[ 98.716556][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[ 98.724882][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[ 98.751479][ T4304] device veth0_macvtap entered promiscuous mode
[ 98.759749][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready
[ 98.770058][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 98.782634][ T4304] device veth1_macvtap entered promiscuous mode
[ 98.800790][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[ 98.812427][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready
[ 98.828917][ T4304] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 98.838425][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
[ 98.847927][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 98.865111][ T4304] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 98.877755][ T4304] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 98.887143][ T4304] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 98.896314][ T4304] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 98.910191][ T4304] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 98.921511][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
[ 98.932026][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 99.009300][ T140] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 99.017191][ T140] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 99.032256][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 99.056083][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 99.064845][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 99.076335][ T140] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
[ 99.139800][ T4363]
[ 99.142887][ T4363] =============================
[ 99.148157][ T4363] WARNING: suspicious RCU usage
[ 99.154474][ T4363] syzkaller #0 Not tainted
[ 99.160034][ T4363] -----------------------------
[ 99.165101][ T4363] kernel/events/callchain.c:161 suspicious rcu_dereference_check() usage!
[ 99.174476][ T4363]
[ 99.174476][ T4363] other info that might help us debug this:
[ 99.174476][ T4363]
[ 99.186577][ T4363]
[ 99.186577][ T4363] rcu_scheduler_active = 2, debug_locks = 1
[ 99.196455][ T4363] 1 lock held by syz.0.17/4363:
[ 99.201884][ T4363] #0: ffffffff8c31f4e0 (rcu_read_lock_trace){....}-{0:0}, at: rcu_lock_acquire+0x9/0x30
[ 99.215661][ T4363]
[ 99.215661][ T4363] stack backtrace:
[ 99.222629][ T4363] CPU: 1 PID: 4363 Comm: syz.0.17 Not tainted syzkaller #0
[ 99.230841][ T4363] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[ 99.242096][ T4363] Call Trace:
[ 99.245431][ T4363]
[ 99.248407][ T4363] dump_stack_lvl+0x188/0x250
[ 99.253150][ T4363] ? load_image+0x400/0x400
[ 99.257695][ T4363] ? show_regs_print_info+0x20/0x20
[ 99.263384][ T4363] ? print_tainted+0x148/0x170
[ 99.268227][ T4363] ? lockdep_rcu_suspicious+0x110/0x180
[ 99.274085][ T4363] get_callchain_entry+0x2a5/0x3b0
[ 99.279262][ T4363] get_perf_callchain+0xab/0x460
[ 99.284242][ T4363] ? put_callchain_entry+0xb0/0xb0
[ 99.289387][ T4363] ? mark_lock+0x94/0x320
[ 99.293754][ T4363] ? verify_lock_unused+0x140/0x140
[ 99.298992][ T4363] ? __lock_acquire+0x13bc/0x7d10
[ 99.304071][ T4363] __bpf_get_stack+0x2db/0x530
[ 99.308906][ T4363] ? stack_map_get_build_id_offset+0x860/0x860
[ 99.315128][ T4363] ? __cant_sleep+0x220/0x220
[ 99.319938][ T4363] ? bpf_prog_14d9fb3786f83342+0x3d/0xd8c
[ 99.325818][ T4363] bpf_get_stack_raw_tp+0x189/0x1c0
[ 99.331178][ T4363] bpf_prog_14d9fb3786f83342+0x3d/0xd8c
[ 99.336883][ T4363] bpf_prog_run_pin_on_cpu+0x63/0x140
[ 99.342448][ T4363] bpf_prog_test_run_syscall+0x35a/0x4f0
[ 99.348270][ T4363] ? sock_gen_cookie+0x60/0x60
[ 99.353463][ T4363] ? __fdget+0x150/0x210
[ 99.357767][ T4363] ? sock_gen_cookie+0x60/0x60
[ 99.362816][ T4363] bpf_prog_test_run+0x31e/0x390
[ 99.367816][ T4363] __sys_bpf+0x5a5/0x6f0
[ 99.372220][ T4363] ? bpf_link_show_fdinfo+0x380/0x380
[ 99.377656][ T4363] ? vtime_user_exit+0x2c8/0x3e0
[ 99.382740][ T4363] __x64_sys_bpf+0x78/0x90
[ 99.387205][ T4363] do_syscall_64+0x4c/0xa0
[ 99.391663][ T4363] ? clear_bhb_loop+0x30/0x80
[ 99.396387][ T4363] ? clear_bhb_loop+0x30/0x80
[ 99.401680][ T4363] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 99.407868][ T4363] RIP: 0033:0x7f8792f6ee59
[ 99.412345][ T4363] 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
[ 99.432343][ T4363] RSP: 002b:00007ffe223bb398 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
[ 99.440887][ T4363] RAX: ffffffffffffffda RBX: 00007f87931e7fa0 RCX: 00007f8792f6ee59
[ 99.449400][ T4363] RDX: 0000000000000010 RSI: 0000200000000740 RDI: 000000000000000a
[ 99.457439][ T4363] RBP: 00007f8793004e6f R08: 0000000000000000 R09: 0000000000000000
[ 99.465781][ T4363] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 99.473956][ T4363] R13: 00007f87931e7fac R14: 00007f87931e7fa0 R15: 00007f87931e7fa0
[ 99.482170][ T4363]
[ 99.489284][ T4363]
[ 99.491946][ T4363] =============================
[ 99.496824][ T4363] WARNING: suspicious RCU usage
[ 99.501878][ T4363] syzkaller #0 Not tainted
[ 99.506331][ T4363] -----------------------------
[ 99.512008][ T4363] include/linux/perf_event.h:1274 suspicious rcu_dereference_check() usage!
[ 99.521408][ T4363]
[ 99.521408][ T4363] other info that might help us debug this:
[ 99.521408][ T4363]
[ 99.531856][ T4363]
[ 99.531856][ T4363] rcu_scheduler_active = 2, debug_locks = 1
[ 99.540372][ T4363] 1 lock held by syz.0.17/4363:
[ 99.545450][ T4363] #0: ffffffff8c31f4e0 (rcu_read_lock_trace){....}-{0:0}, at: rcu_lock_acquire+0x9/0x30
[ 99.556687][ T4363]
[ 99.556687][ T4363] stack backtrace:
[ 99.564024][ T4363] CPU: 1 PID: 4363 Comm: syz.0.17 Not tainted syzkaller #0
[ 99.571448][ T4363] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
[ 99.581664][ T4363] Call Trace:
[ 99.585000][ T4363]
[ 99.587987][ T4363] dump_stack_lvl+0x188/0x250
[ 99.592831][ T4363] ? load_image+0x400/0x400
[ 99.597482][ T4363] ? show_regs_print_info+0x20/0x20
[ 99.603300][ T4363] ? lockdep_rcu_suspicious+0x110/0x180
[ 99.608903][ T4363] perf_callchain_kernel+0x5f1/0x720
[ 99.614613][ T4363] ? load_image+0x400/0x400
[ 99.619344][ T4363] ? show_regs_print_info+0x20/0x20
[ 99.624821][ T4363] ? print_tainted+0x148/0x170
[ 99.629842][ T4363] ? arch_perf_update_userpage+0x3c0/0x3c0
[ 99.635940][ T4363] ? get_callchain_entry+0x181/0x3b0
[ 99.641291][ T4363] get_perf_callchain+0x356/0x460
[ 99.646371][ T4363] ? put_callchain_entry+0xb0/0xb0
[ 99.651639][ T4363] ? mark_lock+0x94/0x320
[ 99.656145][ T4363] ? verify_lock_unused+0x140/0x140
[ 99.661735][ T4363] ? __lock_acquire+0x13bc/0x7d10
[ 99.666824][ T4363] __bpf_get_stack+0x2db/0x530
[ 99.672445][ T4363] ? stack_map_get_build_id_offset+0x860/0x860
[ 99.678667][ T4363] ? __cant_sleep+0x220/0x220
[ 99.684351][ T4363] ? bpf_prog_14d9fb3786f83342+0x3d/0xd8c
[ 99.691769][ T4363] bpf_get_stack_raw_tp+0x189/0x1c0
[ 99.697012][ T4363] bpf_prog_14d9fb3786f83342+0x3d/0xd8c
[ 99.702739][ T4363] bpf_prog_run_pin_on_cpu+0x63/0x140
[ 99.708734][ T4363] bpf_prog_test_run_syscall+0x35a/0x4f0
[ 99.714600][ T4363] ? sock_gen_cookie+0x60/0x60
[ 99.719542][ T4363] ? __fdget+0x150/0x210
[ 99.723854][ T4363] ? sock_gen_cookie+0x60/0x60
[ 99.728909][ T4363] bpf_prog_test_run+0x31e/0x390
[ 99.733932][ T4363] __sys_bpf+0x5a5/0x6f0
[ 99.738242][ T4363] ? bpf_link_show_fdinfo+0x380/0x380
[ 99.743719][ T4363] ? vtime_user_exit+0x2c8/0x3e0
[ 99.748724][ T4363] __x64_sys_bpf+0x78/0x90
[ 99.753447][ T4363] do_syscall_64+0x4c/0xa0
[ 99.758367][ T4363] ? clear_bhb_loop+0x30/0x80
[ 99.763228][ T4363] ? clear_bhb_loop+0x30/0x80
[ 99.768174][ T4363] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 99.774568][ T4363] RIP: 0033:0x7f8792f6ee59
[ 99.779047][ T4363] 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
[ 99.800715][ T4363] RSP: 002b:00007ffe223bb398 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
[ 99.810127][ T4363] RAX: ffffffffffffffda RBX: 00007f87931e7fa0 RCX: 00007f8792f6ee59
[ 99.818332][ T4363] RDX: 0000000000000010 RSI: 0000200000000740 RDI: 000000000000000a
[ 99.826437][ T4363] RBP: 00007f8793004e6f R08: 0000000000000000 R09: 0000000000000000
[ 99.835415][ T4363] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 99.843691][ T4363] R13: 00007f87931e7fac R14: 00007f87931e7fa0 R15: 00007f87931e7fa0
[ 99.852291][ T4363]
[ 100.131846][ T23] cfg80211: failed to load regulatory.db