Warning: Permanently added '10.128.1.86' (ED25519) to the list of known hosts.
2026/01/18 10:29:10 parsed 1 programs
[ 55.079966][ T4187] cgroup: Unknown subsys name 'net'
[ 55.240780][ T4187] cgroup: Unknown subsys name 'rlimit'
Setting up swapspace version 1, size = 127995904 bytes
[ 56.483627][ T4187] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS
[ 58.434502][ T4222] chnl_net:caif_netlink_parms(): no params data found
[ 58.502829][ T4222] bridge0: port 1(bridge_slave_0) entered blocking state
[ 58.516136][ T4222] bridge0: port 1(bridge_slave_0) entered disabled state
[ 58.524253][ T4222] device bridge_slave_0 entered promiscuous mode
[ 58.534263][ T4222] bridge0: port 2(bridge_slave_1) entered blocking state
[ 58.541708][ T4222] bridge0: port 2(bridge_slave_1) entered disabled state
[ 58.550523][ T4222] device bridge_slave_1 entered promiscuous mode
[ 58.575607][ T4222] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 58.588613][ T4222] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 58.616769][ T4222] team0: Port device team_slave_0 added
[ 58.627029][ T4222] team0: Port device team_slave_1 added
[ 58.649607][ T4222] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 58.656702][ T4222] 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.
[ 58.684188][ T4222] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 58.697716][ T4222] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 58.704662][ T4222] 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.
[ 58.731994][ T4222] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 58.770433][ T4222] device hsr_slave_0 entered promiscuous mode
[ 58.778514][ T4222] device hsr_slave_1 entered promiscuous mode
[ 58.904722][ T4222] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 58.919307][ T4222] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 58.930977][ T4222] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 58.941477][ T4222] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 58.974179][ T4222] bridge0: port 2(bridge_slave_1) entered blocking state
[ 58.981447][ T4222] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 58.989471][ T4222] bridge0: port 1(bridge_slave_0) entered blocking state
[ 58.996588][ T4222] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 59.051038][ T4222] 8021q: adding VLAN 0 to HW filter on device bond0
[ 59.065079][ T1403] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 59.078908][ T1403] bridge0: port 1(bridge_slave_0) entered disabled state
[ 59.088826][ T1403] bridge0: port 2(bridge_slave_1) entered disabled state
[ 59.097281][ T1403] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[ 59.112382][ T4222] 8021q: adding VLAN 0 to HW filter on device team0
[ 59.124944][ T1403] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 59.135369][ T1403] bridge0: port 1(bridge_slave_0) entered blocking state
[ 59.142439][ T1403] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 59.168006][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 59.178657][ T154] bridge0: port 2(bridge_slave_1) entered blocking state
[ 59.185771][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 59.196745][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[ 59.207260][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[ 59.218768][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[ 59.231373][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 59.243981][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 59.256783][ T4222] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[ 59.364402][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 59.372197][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 59.383897][ T4222] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 59.405645][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready
[ 59.421236][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 59.455700][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready
[ 59.464468][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 59.475194][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 59.483558][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 59.496890][ T4222] device veth0_vlan entered promiscuous mode
[ 59.510382][ T4222] device veth1_vlan entered promiscuous mode
[ 59.527505][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[ 59.535903][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[ 59.543854][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready
[ 59.553710][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 59.564377][ T4222] device veth0_macvtap entered promiscuous mode
[ 59.575034][ T4222] device veth1_macvtap entered promiscuous mode
[ 59.589711][ T4222] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 59.597249][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[ 59.605692][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready
[ 59.613624][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
[ 59.622381][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 59.632977][ T4222] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 59.642145][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
[ 59.651220][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 59.669055][ T4222] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 59.678007][ T4222] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 59.687498][ T4222] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 59.696778][ T4222] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 59.780879][ T4222] syz-executor (4222) used greatest stack depth: 20240 bytes left
[ 60.329993][ T1279] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 60.350071][ T1279] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 60.370491][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 60.403024][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 60.419822][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 60.443487][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
2026/01/18 10:29:18 executed programs: 0
[ 61.660897][ T1173] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 61.766613][ T4287] chnl_net:caif_netlink_parms(): no params data found
[ 61.802856][ T4287] bridge0: port 1(bridge_slave_0) entered blocking state
[ 61.810951][ T4287] bridge0: port 1(bridge_slave_0) entered disabled state
[ 61.819441][ T4287] device bridge_slave_0 entered promiscuous mode
[ 61.827764][ T4287] bridge0: port 2(bridge_slave_1) entered blocking state
[ 61.834831][ T4287] bridge0: port 2(bridge_slave_1) entered disabled state
[ 61.843055][ T4287] device bridge_slave_1 entered promiscuous mode
[ 61.861462][ T4287] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 61.872046][ T4287] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 61.892272][ T4287] team0: Port device team_slave_0 added
[ 61.899761][ T4287] team0: Port device team_slave_1 added
[ 61.913919][ T4287] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 61.920895][ T4287] 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.
[ 61.946803][ T4287] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 61.959381][ T4287] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 61.966718][ T4287] 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.
[ 61.993438][ T4287] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 62.019289][ T4287] device hsr_slave_0 entered promiscuous mode
[ 62.026100][ T4287] device hsr_slave_1 entered promiscuous mode
[ 62.032886][ T4287] debugfs: Directory 'hsr0' with parent 'hsr' already present!
[ 62.040817][ T4287] Cannot create hsr debugfs directory
[ 63.726065][ T23] Bluetooth: hci0: command 0x0409 tx timeout
[ 65.272191][ T1173] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 65.320642][ T1173] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 65.371031][ T1173] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 65.805939][ T4320] Bluetooth: hci0: command 0x041b tx timeout
[ 66.163236][ T4287] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 66.173301][ T4287] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 66.183172][ T4287] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 66.192496][ T4287] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 66.255615][ T4287] 8021q: adding VLAN 0 to HW filter on device bond0
[ 66.268208][ T1403] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[ 66.276823][ T1403] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 66.288050][ T4287] 8021q: adding VLAN 0 to HW filter on device team0
[ 66.314698][ T1403] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
[ 66.324616][ T1403] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 66.333690][ T1403] bridge0: port 1(bridge_slave_0) entered blocking state
[ 66.340769][ T1403] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 66.350558][ T1403] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
[ 66.370618][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
[ 66.379393][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 66.389318][ T154] bridge0: port 2(bridge_slave_1) entered blocking state
[ 66.396438][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 66.404259][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready
[ 66.415769][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready
[ 66.441615][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready
[ 66.450612][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[ 66.459479][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[ 66.470235][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready
[ 66.479415][ T1279] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[ 66.490617][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready
[ 66.499578][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 66.534771][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready
[ 66.543864][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 66.554966][ T4287] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[ 66.661091][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 66.670173][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 66.681834][ T4287] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 66.712012][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready
[ 66.720932][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 66.741059][ T1403] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready
[ 66.749330][ T1403] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 66.778691][ T1403] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 66.786719][ T1403] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 66.797044][ T4287] device veth0_vlan entered promiscuous mode
[ 66.808746][ T4287] device veth1_vlan entered promiscuous mode
[ 66.848429][ T1403] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[ 66.857549][ T1403] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[ 66.866318][ T1403] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready
[ 66.874803][ T1403] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 66.885829][ T4287] device veth0_macvtap entered promiscuous mode
[ 66.894264][ T4287] device veth1_macvtap entered promiscuous mode
[ 66.912669][ T4287] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[ 66.926981][ T4287] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[ 66.938670][ T4287] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 66.947351][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[ 66.955917][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready
[ 66.963789][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
[ 66.972451][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 66.985873][ T1173] device hsr_slave_0 left promiscuous mode
[ 66.992206][ T1173] device hsr_slave_1 left promiscuous mode
[ 66.999251][ T1173] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 67.007741][ T1173] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 67.016323][ T1173] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 67.023722][ T1173] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 67.031468][ T1173] device bridge_slave_1 left promiscuous mode
[ 67.038511][ T1173] bridge0: port 2(bridge_slave_1) entered disabled state
[ 67.051288][ T1173] device bridge_slave_0 left promiscuous mode
[ 67.057824][ T1173] bridge0: port 1(bridge_slave_0) entered disabled state
[ 67.073648][ T1173] device veth1_macvtap left promiscuous mode
[ 67.080368][ T1173] device veth0_macvtap left promiscuous mode
[ 67.086540][ T1173] device veth1_vlan left promiscuous mode
[ 67.092610][ T1173] device veth0_vlan left promiscuous mode
[ 67.231482][ T1173] team0 (unregistering): Port device team_slave_1 removed
[ 67.243949][ T1173] team0 (unregistering): Port device team_slave_0 removed
[ 67.258478][ T1173] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 67.272114][ T1173] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 67.318117][ T1173] bond0 (unregistering): Released all slaves
[ 67.361432][ T4287] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 67.372309][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
[ 67.381225][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 67.391910][ T4287] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 67.400938][ T4287] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 67.410080][ T4287] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 67.419238][ T4287] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 67.487695][ T1403] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 67.495965][ T1403] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 67.508320][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 67.521946][ T1403] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 67.530777][ T1403] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 67.550780][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
[ 67.586852][ T4351]
[ 67.589333][ T4351] =============================
[ 67.595165][ T4351] WARNING: suspicious RCU usage
[ 67.601813][ T4351] syzkaller #0 Not tainted
[ 67.607051][ T4351] -----------------------------
[ 67.611909][ T4351] kernel/events/callchain.c:161 suspicious rcu_dereference_check() usage!
[ 67.620492][ T4351]
[ 67.620492][ T4351] other info that might help us debug this:
[ 67.620492][ T4351]
[ 67.630847][ T4351]
[ 67.630847][ T4351] rcu_scheduler_active = 2, debug_locks = 1
[ 67.638997][ T4351] 1 lock held by syz.0.17/4351:
[ 67.643845][ T4351] #0: ffffffff8c31c8a0 (rcu_read_lock_trace){....}-{0:0}, at: rcu_lock_acquire+0x9/0x30
[ 67.656239][ T4351]
[ 67.656239][ T4351] stack backtrace:
[ 67.662169][ T4351] CPU: 0 PID: 4351 Comm: syz.0.17 Not tainted syzkaller #0
[ 67.669352][ T4351] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 67.679401][ T4351] Call Trace:
[ 67.682669][ T4351]
[ 67.685595][ T4351] dump_stack_lvl+0x188/0x250
[ 67.690269][ T4351] ? load_image+0x400/0x400
[ 67.694760][ T4351] ? show_regs_print_info+0x20/0x20
[ 67.699939][ T4351] ? print_tainted+0x148/0x170
[ 67.704689][ T4351] ? lockdep_rcu_suspicious+0x110/0x180
[ 67.710224][ T4351] get_callchain_entry+0x2a5/0x3b0
[ 67.715329][ T4351] get_perf_callchain+0xab/0x460
[ 67.720248][ T4351] ? put_callchain_entry+0xb0/0xb0
[ 67.725336][ T4351] ? mark_lock+0x94/0x320
[ 67.729647][ T4351] ? verify_lock_unused+0x140/0x140
[ 67.734842][ T4351] ? __lock_acquire+0x13bc/0x7d10
[ 67.739848][ T4351] __bpf_get_stack+0x2db/0x530
[ 67.744596][ T4351] ? stack_map_get_build_id_offset+0x860/0x860
[ 67.750738][ T4351] ? __cant_sleep+0x220/0x220
[ 67.755401][ T4351] ? bpf_prog_14d9fb3786f83342+0x3d/0x268
[ 67.761208][ T4351] bpf_get_stack_raw_tp+0x189/0x1c0
[ 67.766403][ T4351] bpf_prog_14d9fb3786f83342+0x3d/0x268
[ 67.771931][ T4351] bpf_prog_run_pin_on_cpu+0x63/0x140
[ 67.777286][ T4351] bpf_prog_test_run_syscall+0x35a/0x4f0
[ 67.782898][ T4351] ? sock_gen_cookie+0x60/0x60
[ 67.787656][ T4351] ? __fdget+0x150/0x210
[ 67.791883][ T4351] ? sock_gen_cookie+0x60/0x60
[ 67.796628][ T4351] bpf_prog_test_run+0x31e/0x390
[ 67.801551][ T4351] __sys_bpf+0x5a5/0x6f0
[ 67.805791][ T4351] ? bpf_link_show_fdinfo+0x380/0x380
[ 67.811184][ T4351] ? vtime_user_exit+0x2c8/0x3e0
[ 67.816156][ T4351] __x64_sys_bpf+0x78/0x90
[ 67.820561][ T4351] do_syscall_64+0x4c/0xa0
[ 67.824963][ T4351] ? clear_bhb_loop+0x30/0x80
[ 67.829623][ T4351] ? clear_bhb_loop+0x30/0x80
[ 67.834285][ T4351] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 67.840167][ T4351] RIP: 0033:0x7f699289dcb9
[ 67.844563][ T4351] 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
[ 67.864150][ T4351] RSP: 002b:00007ffe75864378 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
[ 67.872548][ T4351] RAX: ffffffffffffffda RBX: 00007f6992b18fa0 RCX: 00007f699289dcb9
[ 67.880521][ T4351] RDX: 000000000000000c RSI: 00002000000004c0 RDI: 000000000000000a
[ 67.888474][ T4351] RBP: 00007f699290bbf7 R08: 0000000000000000 R09: 0000000000000000
[ 67.896430][ T4351] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 67.904428][ T4351] R13: 00007f6992b18fac R14: 00007f6992b18fa0 R15: 00007f6992b18fa0
[ 67.906075][ T4319] Bluetooth: hci0: command 0x040f tx timeout
[ 67.912744][ T4351]
[ 67.925580][ T4351]
[ 67.927938][ T4351] =============================
[ 67.932783][ T4351] WARNING: suspicious RCU usage
[ 67.937719][ T4351] syzkaller #0 Not tainted
[ 67.942149][ T4351] -----------------------------
[ 67.947401][ T4351] include/linux/perf_event.h:1274 suspicious rcu_dereference_check() usage!
[ 67.956132][ T4351]
[ 67.956132][ T4351] other info that might help us debug this:
[ 67.956132][ T4351]
[ 67.966741][ T4351]
[ 67.966741][ T4351] rcu_scheduler_active = 2, debug_locks = 1
[ 67.974800][ T4351] 1 lock held by syz.0.17/4351:
[ 67.979766][ T4351] #0: ffffffff8c31c8a0 (rcu_read_lock_trace){....}-{0:0}, at: rcu_lock_acquire+0x9/0x30
[ 67.989686][ T4351]
[ 67.989686][ T4351] stack backtrace:
[ 67.995603][ T4351] CPU: 0 PID: 4351 Comm: syz.0.17 Not tainted syzkaller #0
[ 68.002816][ T4351] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 68.012962][ T4351] Call Trace:
[ 68.016230][ T4351]
[ 68.019144][ T4351] dump_stack_lvl+0x188/0x250
[ 68.023805][ T4351] ? load_image+0x400/0x400
[ 68.028287][ T4351] ? show_regs_print_info+0x20/0x20
[ 68.033483][ T4351] ? lockdep_rcu_suspicious+0x110/0x180
[ 68.039030][ T4351] perf_callchain_kernel+0x5f1/0x720
[ 68.044301][ T4351] ? load_image+0x400/0x400
[ 68.048786][ T4351] ? show_regs_print_info+0x20/0x20
[ 68.053962][ T4351] ? print_tainted+0x148/0x170
[ 68.058716][ T4351] ? arch_perf_update_userpage+0x3c0/0x3c0
[ 68.064583][ T4351] ? get_callchain_entry+0x181/0x3b0
[ 68.069869][ T4351] get_perf_callchain+0x356/0x460
[ 68.074878][ T4351] ? put_callchain_entry+0xb0/0xb0
[ 68.079991][ T4351] ? mark_lock+0x94/0x320
[ 68.084304][ T4351] ? verify_lock_unused+0x140/0x140
[ 68.089478][ T4351] ? __lock_acquire+0x13bc/0x7d10
[ 68.094485][ T4351] __bpf_get_stack+0x2db/0x530
[ 68.099236][ T4351] ? stack_map_get_build_id_offset+0x860/0x860
[ 68.105376][ T4351] ? __cant_sleep+0x220/0x220
[ 68.110062][ T4351] ? bpf_prog_14d9fb3786f83342+0x3d/0x268
[ 68.115771][ T4351] bpf_get_stack_raw_tp+0x189/0x1c0
[ 68.120955][ T4351] bpf_prog_14d9fb3786f83342+0x3d/0x268
[ 68.126481][ T4351] bpf_prog_run_pin_on_cpu+0x63/0x140
[ 68.131839][ T4351] bpf_prog_test_run_syscall+0x35a/0x4f0
[ 68.137454][ T4351] ? sock_gen_cookie+0x60/0x60
[ 68.142201][ T4351] ? __fdget+0x150/0x210
[ 68.146510][ T4351] ? sock_gen_cookie+0x60/0x60
[ 68.151255][ T4351] bpf_prog_test_run+0x31e/0x390
[ 68.156181][ T4351] __sys_bpf+0x5a5/0x6f0
[ 68.160426][ T4351] ? bpf_link_show_fdinfo+0x380/0x380
[ 68.165800][ T4351] ? vtime_user_exit+0x2c8/0x3e0
[ 68.170723][ T4351] __x64_sys_bpf+0x78/0x90
[ 68.175122][ T4351] do_syscall_64+0x4c/0xa0
[ 68.179534][ T4351] ? clear_bhb_loop+0x30/0x80
[ 68.184204][ T4351] ? clear_bhb_loop+0x30/0x80
[ 68.188869][ T4351] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 68.194745][ T4351] RIP: 0033:0x7f699289dcb9
[ 68.199137][ T4351] 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
[ 68.218732][ T4351] RSP: 002b:00007ffe75864378 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
[ 68.227131][ T4351] RAX: ffffffffffffffda RBX: 00007f6992b18fa0 RCX: 00007f699289dcb9
[ 68.235085][ T4351] RDX: 000000000000000c RSI: 00002000000004c0 RDI: 000000000000000a
[ 68.243034][ T4351] RBP: 00007f699290bbf7 R08: 0000000000000000 R09: 0000000000000000
[ 68.250988][ T4351] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 68.258949][ T4351] R13: 00007f6992b18fac R14: 00007f6992b18fa0 R15: 00007f6992b18fa0
[ 68.266921][ T4351]