Warning: Permanently added '10.128.0.219' (ED25519) to the list of known hosts. 2025/09/07 17:26:50 parsed 1 programs [ 62.079892][ T4186] cgroup: Unknown subsys name 'net' [ 62.247080][ T4186] cgroup: Unknown subsys name 'rlimit' [ 63.650797][ T4186] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 66.256440][ T3093] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.271844][ T3093] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.284086][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 66.301102][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.310439][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.319667][ T3093] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 67.273429][ T4253] chnl_net:caif_netlink_parms(): no params data found [ 67.318499][ T4253] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.326581][ T4253] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.334542][ T4253] device bridge_slave_0 entered promiscuous mode [ 67.343736][ T4253] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.350867][ T4253] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.358961][ T4253] device bridge_slave_1 entered promiscuous mode [ 67.380839][ T4253] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.391999][ T4253] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.415172][ T4253] team0: Port device team_slave_0 added [ 67.423349][ T4253] team0: Port device team_slave_1 added [ 67.441718][ T4253] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 67.448725][ T4253] 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. [ 67.474861][ T4253] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 67.487365][ T4253] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 67.494642][ T4253] 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. [ 67.520842][ T4253] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 67.550114][ T4253] device hsr_slave_0 entered promiscuous mode [ 67.557201][ T4253] device hsr_slave_1 entered promiscuous mode [ 67.645205][ T4253] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.656038][ T4253] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.687487][ T4253] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.696460][ T4253] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.744090][ T4253] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.751315][ T4253] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.759182][ T4253] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.766287][ T4253] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.830422][ T4253] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.843984][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.853205][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.861118][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.870551][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 67.886627][ T4253] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.916606][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.925522][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.932635][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.944193][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.953437][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.960493][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.983726][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.012816][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.020925][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.032630][ T3093] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.047919][ T4253] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 68.060919][ T4253] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.090058][ T3093] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.208322][ T3093] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.216763][ T3093] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.229661][ T4253] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.263912][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.282985][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.291922][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.300553][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.310208][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.320360][ T4253] device veth0_vlan entered promiscuous mode [ 68.348470][ T4253] device veth1_vlan entered promiscuous mode [ 68.366169][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.375181][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.385677][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 68.395543][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.406182][ T4253] device veth0_macvtap entered promiscuous mode [ 68.424722][ T4253] device veth1_macvtap entered promiscuous mode [ 68.446360][ T4253] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.455396][ T3093] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.463840][ T3093] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 68.472783][ T3093] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 68.482569][ T3093] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.494914][ T4253] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 68.506589][ T3093] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 68.517120][ T3093] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.554204][ T4253] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.563124][ T4253] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.572225][ T4253] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.580964][ T4253] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2025/09/07 17:26:59 executed programs: 0 [ 69.424442][ T4302] chnl_net:caif_netlink_parms(): no params data found [ 69.485119][ T4302] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.492400][ T4302] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.500477][ T4302] device bridge_slave_0 entered promiscuous mode [ 69.512318][ T4302] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.519535][ T4302] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.530316][ T4302] device bridge_slave_1 entered promiscuous mode [ 69.557711][ T4302] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.570097][ T4302] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.608592][ T4302] team0: Port device team_slave_0 added [ 69.616760][ T4302] team0: Port device team_slave_1 added [ 69.641316][ T4302] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 69.648310][ T4302] 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. [ 69.675312][ T4302] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 69.689825][ T4302] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 69.697015][ T4302] 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. [ 69.723039][ T4302] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 69.760129][ T4302] device hsr_slave_0 entered promiscuous mode [ 69.767563][ T4302] device hsr_slave_1 entered promiscuous mode [ 69.774611][ T4302] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.782798][ T4302] Cannot create hsr debugfs directory [ 69.870968][ T4302] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.173759][ T1430] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.180218][ T1430] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.332220][ T4199] Bluetooth: hci0: command 0x0409 tx timeout [ 72.158063][ T4302] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.412239][ T4291] Bluetooth: hci0: command 0x041b tx timeout [ 73.422628][ T4302] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.488394][ T4302] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.595206][ T4302] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.604585][ T4302] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.615442][ T4302] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.628489][ T4302] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.690546][ T4302] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.703751][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 73.713681][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.724843][ T4302] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.747845][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 73.757719][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.766564][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.773680][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.784066][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 73.804829][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 73.814453][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.824232][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.831377][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.855554][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 73.868014][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 73.879744][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 73.888969][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.899876][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.913426][ T4316] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 73.922299][ T4316] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.943517][ T4316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 73.951970][ T4316] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.961334][ T4316] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 73.969752][ T4316] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.980657][ T4302] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.994222][ T1182] device hsr_slave_0 left promiscuous mode [ 74.000543][ T1182] device hsr_slave_1 left promiscuous mode [ 74.007436][ T1182] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 74.016165][ T1182] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 74.024565][ T1182] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 74.032051][ T1182] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 74.039683][ T1182] device bridge_slave_1 left promiscuous mode [ 74.046735][ T1182] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.059752][ T1182] device bridge_slave_0 left promiscuous mode [ 74.067531][ T1182] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.084025][ T1182] device veth1_macvtap left promiscuous mode [ 74.090236][ T1182] device veth0_macvtap left promiscuous mode [ 74.097100][ T1182] device veth1_vlan left promiscuous mode [ 74.103078][ T1182] device veth0_vlan left promiscuous mode [ 74.250489][ T1182] team0 (unregistering): Port device team_slave_1 removed [ 74.266565][ T1182] team0 (unregistering): Port device team_slave_0 removed [ 74.279246][ T1182] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 74.295053][ T1182] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 74.348250][ T1182] bond0 (unregistering): Released all slaves [ 74.486775][ T4316] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.494366][ T4316] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.506850][ T4302] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.525510][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.535200][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.562762][ T4316] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.571461][ T4316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.579901][ T4316] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.588127][ T4316] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.598570][ T4302] device veth0_vlan entered promiscuous mode [ 74.616133][ T4302] device veth1_vlan entered promiscuous mode [ 74.638898][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.647536][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.656893][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.665540][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.675938][ T4302] device veth0_macvtap entered promiscuous mode [ 74.686330][ T4302] device veth1_macvtap entered promiscuous mode [ 74.701974][ T4302] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.709655][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.717896][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 74.726374][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.735440][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.748069][ T4302] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.756607][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.765260][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.776901][ T4302] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.786159][ T4302] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.796186][ T4302] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.805202][ T4302] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.869954][ T4316] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.884998][ T4316] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.897187][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.900927][ T4316] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.912486][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.921689][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 74.969764][ T4321] [ 74.973920][ T4321] ============================= [ 74.980639][ T4321] WARNING: suspicious RCU usage [ 74.985860][ T4321] syzkaller #0 Not tainted [ 74.990284][ T4321] ----------------------------- [ 74.996681][ T4321] kernel/events/callchain.c:161 suspicious rcu_dereference_check() usage! [ 75.006549][ T4321] [ 75.006549][ T4321] other info that might help us debug this: [ 75.006549][ T4321] [ 75.019081][ T4321] [ 75.019081][ T4321] rcu_scheduler_active = 2, debug_locks = 1 [ 75.027761][ T4321] 1 lock held by syz.0.17/4321: [ 75.033862][ T4321] #0: ffffffff8c11c5e0 (rcu_read_lock_trace){....}-{0:0}, at: rcu_lock_acquire+0x9/0x30 [ 75.044054][ T4321] [ 75.044054][ T4321] stack backtrace: [ 75.049959][ T4321] CPU: 0 PID: 4321 Comm: syz.0.17 Not tainted syzkaller #0 [ 75.057162][ T4321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 75.067240][ T4321] Call Trace: [ 75.070520][ T4321] [ 75.073479][ T4321] dump_stack_lvl+0x168/0x230 [ 75.078177][ T4321] ? load_image+0x3b0/0x3b0 [ 75.082693][ T4321] ? show_regs_print_info+0x20/0x20 [ 75.087915][ T4321] ? lockdep_rcu_suspicious+0x110/0x180 [ 75.093478][ T4321] get_callchain_entry+0x2a5/0x3b0 [ 75.098618][ T4321] get_perf_callchain+0x9f/0x480 [ 75.103565][ T4321] ? put_callchain_entry+0xb0/0xb0 [ 75.108693][ T4321] ? mark_lock+0x94/0x320 [ 75.113052][ T4321] ? verify_lock_unused+0x140/0x140 [ 75.118258][ T4321] ? __lock_acquire+0x13ad/0x7c60 [ 75.123309][ T4321] __bpf_get_stack+0x2cb/0x4f0 [ 75.128096][ T4321] ? stack_map_get_build_id_offset+0x860/0x860 [ 75.134269][ T4321] ? __cant_sleep+0x210/0x210 [ 75.138960][ T4321] ? bpf_prog_b8a90dd1efcc4ad9+0x3d/0x4dc [ 75.144686][ T4321] bpf_get_stack_raw_tp+0x189/0x1c0 [ 75.149901][ T4321] bpf_prog_b8a90dd1efcc4ad9+0x3d/0x4dc [ 75.155458][ T4321] bpf_prog_run_pin_on_cpu+0x63/0x140 [ 75.160857][ T4321] bpf_prog_test_run_syscall+0x354/0x4e0 [ 75.166506][ T4321] ? sock_gen_cookie+0x60/0x60 [ 75.171289][ T4321] ? __fdget+0x150/0x210 [ 75.175550][ T4321] ? sock_gen_cookie+0x60/0x60 [ 75.180329][ T4321] bpf_prog_test_run+0x31e/0x390 [ 75.185284][ T4321] __sys_bpf+0x535/0x670 [ 75.189539][ T4321] ? bpf_link_show_fdinfo+0x340/0x340 [ 75.194942][ T4321] ? vtime_user_exit+0x2dc/0x400 [ 75.199894][ T4321] __x64_sys_bpf+0x78/0x90 [ 75.204332][ T4321] do_syscall_64+0x4c/0xa0 [ 75.208768][ T4321] ? clear_bhb_loop+0x30/0x80 [ 75.213448][ T4321] ? clear_bhb_loop+0x30/0x80 [ 75.218133][ T4321] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 75.224044][ T4321] RIP: 0033:0x7f357da06be9 [ 75.228469][ T4321] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 [ 75.248090][ T4321] RSP: 002b:00007ffe253530e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 75.256521][ T4321] RAX: ffffffffffffffda RBX: 00007f357dc3dfa0 RCX: 00007f357da06be9 [ 75.264500][ T4321] RDX: 000000000000000c RSI: 00002000000004c0 RDI: 000000000000000a [ 75.272481][ T4321] RBP: 00007f357da89e19 R08: 0000000000000000 R09: 0000000000000000 [ 75.280452][ T4321] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 75.288433][ T4321] R13: 00007f357dc3dfa0 R14: 00007f357dc3dfa0 R15: 0000000000000003 [ 75.296431][ T4321] [ 75.307725][ T4321] [ 75.310092][ T4321] ============================= [ 75.315281][ T4321] WARNING: suspicious RCU usage [ 75.320211][ T4321] syzkaller #0 Not tainted [ 75.324993][ T4321] ----------------------------- [ 75.329847][ T4321] include/linux/perf_event.h:1274 suspicious rcu_dereference_check() usage! [ 75.339577][ T4321] [ 75.339577][ T4321] other info that might help us debug this: [ 75.339577][ T4321] [ 75.350273][ T4321] [ 75.350273][ T4321] rcu_scheduler_active = 2, debug_locks = 1 [ 75.358755][ T4321] 1 lock held by syz.0.17/4321: [ 75.363908][ T4321] #0: ffffffff8c11c5e0 (rcu_read_lock_trace){....}-{0:0}, at: rcu_lock_acquire+0x9/0x30 [ 75.374122][ T4321] [ 75.374122][ T4321] stack backtrace: [ 75.380018][ T4321] CPU: 0 PID: 4321 Comm: syz.0.17 Not tainted syzkaller #0 [ 75.387221][ T4321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 75.397288][ T4321] Call Trace: [ 75.400585][ T4321] [ 75.403524][ T4321] dump_stack_lvl+0x168/0x230 [ 75.408218][ T4321] ? show_regs_print_info+0x20/0x20 [ 75.413437][ T4321] ? lockdep_rcu_suspicious+0x110/0x180 [ 75.418989][ T4321] perf_callchain_user+0x6d3/0x10e0 [ 75.424293][ T4321] ? get_callchain_entry+0x181/0x3b0 [ 75.429592][ T4321] get_perf_callchain+0x35d/0x480 [ 75.434633][ T4321] ? put_callchain_entry+0xb0/0xb0 [ 75.439763][ T4321] ? mark_lock+0x94/0x320 [ 75.444115][ T4321] ? verify_lock_unused+0x140/0x140 [ 75.449341][ T4321] ? __lock_acquire+0x13ad/0x7c60 [ 75.454381][ T4321] __bpf_get_stack+0x2cb/0x4f0 [ 75.459165][ T4321] ? stack_map_get_build_id_offset+0x860/0x860 [ 75.465328][ T4321] ? __cant_sleep+0x210/0x210 [ 75.470009][ T4321] ? bpf_prog_b8a90dd1efcc4ad9+0x3d/0x4dc [ 75.475733][ T4321] bpf_get_stack_raw_tp+0x189/0x1c0 [ 75.480941][ T4321] bpf_prog_b8a90dd1efcc4ad9+0x3d/0x4dc [ 75.486493][ T4321] bpf_prog_run_pin_on_cpu+0x63/0x140 [ 75.491882][ T4321] bpf_prog_test_run_syscall+0x354/0x4e0 [ 75.497531][ T4321] ? sock_gen_cookie+0x60/0x60 [ 75.502329][ T4321] ? __fdget+0x150/0x210 [ 75.506575][ T4321] ? sock_gen_cookie+0x60/0x60 [ 75.511348][ T4321] bpf_prog_test_run+0x31e/0x390 [ 75.516298][ T4321] __sys_bpf+0x535/0x670 [ 75.520550][ T4321] ? bpf_link_show_fdinfo+0x340/0x340 [ 75.525941][ T4321] ? vtime_user_exit+0x2dc/0x400 [ 75.530891][ T4321] __x64_sys_bpf+0x78/0x90 [ 75.535331][ T4321] do_syscall_64+0x4c/0xa0 [ 75.539764][ T4321] ? clear_bhb_loop+0x30/0x80 [ 75.544448][ T4321] ? clear_bhb_loop+0x30/0x80 [ 75.549135][ T4321] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 75.555047][ T4321] RIP: 0033:0x7f357da06be9 [ 75.559475][ T4321] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 [ 75.579086][ T4321] RSP: 002b:00007ffe253530e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 75.587514][ T4321] RAX: ffffffffffffffda RBX: 00007f357dc3dfa0 RCX: 00007f357da06be9 [ 75.595507][ T4321] RDX: 000000000000000c RSI: 00002000000004c0 RDI: 000000000000000a [ 75.603487][ T4321] RBP: 00007f357da89e19 R08: 0000000000000000 R09: 0000000000000000 [ 75.611464][ T4321] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 75.619455][ T4321] R13: 00007f357dc3dfa0 R14: 00007f357dc3dfa0 R15: 0000000000000003 [ 75.627464][ T4321] [ 75.631739][ T4199] Bluetooth: hci0: command 0x040f tx timeout