Warning: Permanently added '10.128.0.192' (ED25519) to the list of known hosts. 2026/04/28 22:23:29 parsed 1 programs [ 66.813857][ T4186] cgroup: Unknown subsys name 'net' [ 66.941021][ T4186] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 68.446485][ T4186] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.328615][ T1424] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.335288][ T1424] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.639620][ T4229] chnl_net:caif_netlink_parms(): no params data found [ 71.702471][ T4229] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.710468][ T4229] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.719258][ T4229] device bridge_slave_0 entered promiscuous mode [ 71.729205][ T4229] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.736658][ T4229] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.745139][ T4229] device bridge_slave_1 entered promiscuous mode [ 71.768562][ T4229] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.780309][ T4229] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.809090][ T4229] team0: Port device team_slave_0 added [ 71.818245][ T4229] team0: Port device team_slave_1 added [ 71.841335][ T4229] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 71.848888][ T4229] 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. [ 71.875916][ T4229] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 71.889405][ T4229] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 71.897876][ T4229] 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. [ 71.925376][ T4229] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 71.964939][ T4229] device hsr_slave_0 entered promiscuous mode [ 71.972097][ T4229] device hsr_slave_1 entered promiscuous mode [ 72.164201][ T4229] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 72.192735][ T4229] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 72.209359][ T4229] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 72.221188][ T4229] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 72.247514][ T4229] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.254826][ T4229] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.263032][ T4229] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.270651][ T4229] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.318394][ T4229] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.332281][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.344075][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.355852][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.365489][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 72.381171][ T4229] 8021q: adding VLAN 0 to HW filter on device team0 [ 72.410102][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 72.419600][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.426859][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.440179][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 72.450337][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.458147][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.501770][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 72.511058][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 72.525109][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 72.555079][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 72.567783][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 72.687027][ T4251] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 72.694989][ T4251] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 72.709317][ T4229] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 72.752762][ T4251] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 72.765459][ T4251] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 72.786105][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 72.796404][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 72.807043][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 72.817100][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 72.828799][ T4229] device veth0_vlan entered promiscuous mode [ 72.859311][ T4229] device veth1_vlan entered promiscuous mode [ 72.882027][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 72.890580][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 72.900584][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 72.909901][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 72.922012][ T4229] device veth0_macvtap entered promiscuous mode [ 72.946679][ T4229] device veth1_macvtap entered promiscuous mode [ 72.966951][ T4229] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 72.975665][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 72.984490][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 72.993141][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 73.002738][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.017529][ T4229] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 73.025421][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 73.036204][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.063467][ T4229] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.073424][ T4229] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.082765][ T4229] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.093131][ T4229] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.507535][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.521347][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.540350][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 73.556896][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.565933][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.578408][ T4251] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 74.944581][ T4251] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/04/28 22:23:40 executed programs: 0 [ 75.193464][ T4292] chnl_net:caif_netlink_parms(): no params data found [ 75.240525][ T4292] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.248267][ T4292] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.256945][ T4292] device bridge_slave_0 entered promiscuous mode [ 75.268206][ T4292] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.275915][ T4292] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.285422][ T4292] device bridge_slave_1 entered promiscuous mode [ 75.306679][ T4292] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.318561][ T4292] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.342259][ T4292] team0: Port device team_slave_0 added [ 75.351544][ T4292] team0: Port device team_slave_1 added [ 75.369875][ T4292] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.377451][ T4292] 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. [ 75.405082][ T4292] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.417762][ T4292] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.424988][ T4292] 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. [ 75.452567][ T4292] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.486450][ T4292] device hsr_slave_0 entered promiscuous mode [ 75.494463][ T4292] device hsr_slave_1 entered promiscuous mode [ 75.502037][ T4292] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 75.510556][ T4292] Cannot create hsr debugfs directory [ 77.155157][ T13] Bluetooth: hci0: command 0x0409 tx timeout [ 78.001558][ T4251] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.125458][ T4251] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.172615][ T4251] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 79.042011][ T4292] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 79.054748][ T4292] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 79.076863][ T4292] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 79.087125][ T4292] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 79.161364][ T4292] 8021q: adding VLAN 0 to HW filter on device bond0 [ 79.178629][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 79.187033][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 79.214504][ T4292] 8021q: adding VLAN 0 to HW filter on device team0 [ 79.225825][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 79.235339][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 79.243843][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.246334][ T23] Bluetooth: hci0: command 0x041b tx timeout [ 79.251243][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.267206][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 79.292122][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 79.301941][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 79.311945][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.319387][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.330688][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 79.357718][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 79.371819][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 79.381120][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.394719][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 79.403101][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 79.414475][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 79.451998][ T4292] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 79.465692][ T4292] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 79.479200][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 79.489304][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 79.498234][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 79.507855][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 79.518886][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 79.639715][ T4251] device hsr_slave_0 left promiscuous mode [ 79.650018][ T4251] device hsr_slave_1 left promiscuous mode [ 79.657418][ T4251] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 79.666184][ T4251] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 79.676461][ T4251] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 79.684637][ T4251] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 79.692922][ T4251] device bridge_slave_1 left promiscuous mode [ 79.700662][ T4251] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.716494][ T4251] device bridge_slave_0 left promiscuous mode [ 79.723417][ T4251] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.746197][ T4251] device veth1_macvtap left promiscuous mode [ 79.754873][ T4251] device veth0_macvtap left promiscuous mode [ 79.761287][ T4251] device veth1_vlan left promiscuous mode [ 79.769041][ T4251] device veth0_vlan left promiscuous mode [ 79.972003][ T4251] team0 (unregistering): Port device team_slave_1 removed [ 79.986913][ T4251] team0 (unregistering): Port device team_slave_0 removed [ 80.004901][ T4251] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 80.021251][ T4251] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 80.093387][ T4251] bond0 (unregistering): Released all slaves [ 80.157144][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 80.165040][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 80.177806][ T4292] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 80.205284][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 80.215604][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 80.241603][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 80.253002][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 80.263194][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 80.272491][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 80.286174][ T4292] device veth0_vlan entered promiscuous mode [ 80.299786][ T4292] device veth1_vlan entered promiscuous mode [ 80.332461][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 80.341647][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 80.351133][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 80.360776][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 80.371200][ T4292] device veth0_macvtap entered promiscuous mode [ 80.384487][ T4292] device veth1_macvtap entered promiscuous mode [ 80.402623][ T4292] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 80.419490][ T4292] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 80.427246][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 80.436687][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 80.445275][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 80.455009][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 80.463846][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 80.473542][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 80.488649][ T4292] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.498167][ T4292] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.507285][ T4292] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.517699][ T4292] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.595556][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.603564][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.623215][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 80.649724][ T155] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.658185][ T155] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.668492][ T4338] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 80.770588][ T4343] [ 80.773255][ T4343] ============================= [ 80.779518][ T4343] WARNING: suspicious RCU usage [ 80.784854][ T4343] syzkaller #0 Not tainted [ 80.789630][ T4343] ----------------------------- [ 80.794955][ T4343] kernel/events/callchain.c:161 suspicious rcu_dereference_check() usage! [ 80.805496][ T4343] [ 80.805496][ T4343] other info that might help us debug this: [ 80.805496][ T4343] [ 80.816754][ T4343] [ 80.816754][ T4343] rcu_scheduler_active = 2, debug_locks = 1 [ 80.825266][ T4343] 1 lock held by syz.0.17/4343: [ 80.830522][ T4343] #0: ffffffff8c31eca0 (rcu_read_lock_trace){....}-{0:0}, at: rcu_lock_acquire+0x9/0x30 [ 80.841712][ T4343] [ 80.841712][ T4343] stack backtrace: [ 80.848618][ T4343] CPU: 1 PID: 4343 Comm: syz.0.17 Not tainted syzkaller #0 [ 80.856130][ T4343] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 80.866650][ T4343] Call Trace: [ 80.870090][ T4343] [ 80.873052][ T4343] dump_stack_lvl+0x188/0x250 [ 80.877773][ T4343] ? load_image+0x400/0x400 [ 80.882850][ T4343] ? show_regs_print_info+0x20/0x20 [ 80.888407][ T4343] ? print_tainted+0x148/0x170 [ 80.893438][ T4343] ? lockdep_rcu_suspicious+0x110/0x180 [ 80.899249][ T4343] get_callchain_entry+0x2a5/0x3b0 [ 80.904540][ T4343] get_perf_callchain+0xab/0x460 [ 80.909992][ T4343] ? put_callchain_entry+0xb0/0xb0 [ 80.915346][ T4343] ? mark_lock+0x94/0x320 [ 80.919741][ T4343] ? verify_lock_unused+0x140/0x140 [ 80.925003][ T4343] ? __lock_acquire+0x13bc/0x7d10 [ 80.930254][ T4343] __bpf_get_stack+0x2db/0x530 [ 80.935162][ T4343] ? stack_map_get_build_id_offset+0x860/0x860 [ 80.942086][ T4343] ? __cant_sleep+0x220/0x220 [ 80.946812][ T4343] ? bpf_prog_14d9fb3786f83342+0x3d/0x25c [ 80.952763][ T4343] bpf_get_stack_raw_tp+0x189/0x1c0 [ 80.958497][ T4343] bpf_prog_14d9fb3786f83342+0x3d/0x25c [ 80.964467][ T4343] bpf_prog_run_pin_on_cpu+0x63/0x140 [ 80.970003][ T4343] bpf_prog_test_run_syscall+0x35a/0x4f0 [ 80.975886][ T4343] ? sock_gen_cookie+0x60/0x60 [ 80.982045][ T4343] ? __fdget+0x150/0x210 [ 80.986637][ T4343] ? sock_gen_cookie+0x60/0x60 [ 80.992077][ T4343] bpf_prog_test_run+0x31e/0x390 [ 80.997556][ T4343] __sys_bpf+0x5a5/0x6f0 [ 81.002907][ T4343] ? bpf_link_show_fdinfo+0x380/0x380 [ 81.008662][ T4343] ? vtime_user_exit+0x2c8/0x3e0 [ 81.013988][ T4343] __x64_sys_bpf+0x78/0x90 [ 81.018958][ T4343] do_syscall_64+0x4c/0xa0 [ 81.023634][ T4343] ? clear_bhb_loop+0x30/0x80 [ 81.028743][ T4343] ? clear_bhb_loop+0x30/0x80 [ 81.033585][ T4343] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.039991][ T4343] RIP: 0033:0x7faed3277dd9 [ 81.044640][ T4343] 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 [ 81.064860][ T4343] RSP: 002b:00007ffd010d2438 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 81.073810][ T4343] RAX: ffffffffffffffda RBX: 00007faed34f0fa0 RCX: 00007faed3277dd9 [ 81.082611][ T4343] RDX: 0000000000000010 RSI: 0000200000000740 RDI: 000000000000000a [ 81.091659][ T4343] RBP: 00007faed330dd69 R08: 0000000000000000 R09: 0000000000000000 [ 81.100469][ T4343] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 81.109298][ T4343] R13: 00007faed34f0fac R14: 00007faed34f0fa0 R15: 00007faed34f0fa0 [ 81.118213][ T4343] [ 81.134454][ T4343] [ 81.137563][ T4343] ============================= [ 81.142578][ T4343] WARNING: suspicious RCU usage [ 81.148067][ T4343] syzkaller #0 Not tainted [ 81.152819][ T4343] ----------------------------- [ 81.158962][ T4343] include/linux/perf_event.h:1274 suspicious rcu_dereference_check() usage! [ 81.168744][ T4343] [ 81.168744][ T4343] other info that might help us debug this: [ 81.168744][ T4343] [ 81.179699][ T4343] [ 81.179699][ T4343] rcu_scheduler_active = 2, debug_locks = 1 [ 81.188261][ T4343] 1 lock held by syz.0.17/4343: [ 81.193419][ T4343] #0: ffffffff8c31eca0 (rcu_read_lock_trace){....}-{0:0}, at: rcu_lock_acquire+0x9/0x30 [ 81.204382][ T4343] [ 81.204382][ T4343] stack backtrace: [ 81.210865][ T4343] CPU: 1 PID: 4343 Comm: syz.0.17 Not tainted syzkaller #0 [ 81.218109][ T4343] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 81.228223][ T4343] Call Trace: [ 81.231544][ T4343] [ 81.234509][ T4343] dump_stack_lvl+0x188/0x250 [ 81.239233][ T4343] ? load_image+0x400/0x400 [ 81.243867][ T4343] ? show_regs_print_info+0x20/0x20 [ 81.249126][ T4343] ? lockdep_rcu_suspicious+0x110/0x180 [ 81.254743][ T4343] perf_callchain_kernel+0x5f1/0x720 [ 81.260159][ T4343] ? load_image+0x400/0x400 [ 81.264870][ T4343] ? show_regs_print_info+0x20/0x20 [ 81.270105][ T4343] ? print_tainted+0x148/0x170 [ 81.275244][ T4343] ? arch_perf_update_userpage+0x3c0/0x3c0 [ 81.281116][ T4343] ? get_callchain_entry+0x181/0x3b0 [ 81.286548][ T4343] get_perf_callchain+0x356/0x460 [ 81.291677][ T4343] ? put_callchain_entry+0xb0/0xb0 [ 81.296909][ T4343] ? mark_lock+0x94/0x320 [ 81.301359][ T4343] ? verify_lock_unused+0x140/0x140 [ 81.306887][ T4343] ? __lock_acquire+0x13bc/0x7d10 [ 81.312161][ T4343] __bpf_get_stack+0x2db/0x530 [ 81.317246][ T4343] ? stack_map_get_build_id_offset+0x860/0x860 [ 81.323740][ T4343] ? __cant_sleep+0x220/0x220 [ 81.328652][ T4343] ? bpf_prog_14d9fb3786f83342+0x3d/0x25c [ 81.334743][ T4343] bpf_get_stack_raw_tp+0x189/0x1c0 [ 81.340301][ T4343] bpf_prog_14d9fb3786f83342+0x3d/0x25c [ 81.345891][ T4343] bpf_prog_run_pin_on_cpu+0x63/0x140 [ 81.351417][ T4343] bpf_prog_test_run_syscall+0x35a/0x4f0 [ 81.357232][ T4343] ? sock_gen_cookie+0x60/0x60 [ 81.362043][ T4343] ? __fdget+0x150/0x210 [ 81.366318][ T4343] ? sock_gen_cookie+0x60/0x60 [ 81.371212][ T4343] bpf_prog_test_run+0x31e/0x390 [ 81.376396][ T4343] __sys_bpf+0x5a5/0x6f0 [ 81.380693][ T4343] ? bpf_link_show_fdinfo+0x380/0x380 [ 81.386405][ T4343] ? vtime_user_exit+0x2c8/0x3e0 [ 81.391542][ T4343] __x64_sys_bpf+0x78/0x90 [ 81.396037][ T4343] do_syscall_64+0x4c/0xa0 [ 81.400604][ T4343] ? clear_bhb_loop+0x30/0x80 [ 81.405936][ T4343] ? clear_bhb_loop+0x30/0x80 [ 81.410764][ T4343] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.416883][ T4343] RIP: 0033:0x7faed3277dd9 [ 81.421544][ T4343] 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 [ 81.442353][ T4343] RSP: 002b:00007ffd010d2438 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 81.450932][ T4343] RAX: ffffffffffffffda RBX: 00007faed34f0fa0 RCX: 00007faed3277dd9 [ 81.459221][ T4343] RDX: 0000000000000010 RSI: 0000200000000740 RDI: 000000000000000a [ 81.467234][ T4343] RBP: 00007faed330dd69 R08: 0000000000000000 R09: 0000000000000000 [ 81.475366][ T4343] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 81.483949][ T4343] R13: 00007faed34f0fac R14: 00007faed34f0fa0 R15: 00007faed34f0fa0 [ 81.492457][ T4343] [ 81.497618][ T4188] Bluetooth: hci0: command 0x040f tx timeout