Warning: Permanently added '10.128.0.141' (ED25519) to the list of known hosts. 2026/05/02 15:47:05 parsed 1 programs [ 69.259237][ T4202] cgroup: Unknown subsys name 'net' [ 69.390507][ T4202] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 70.900006][ T4202] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 71.445501][ T1423] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.452206][ T1423] ieee802154 phy1 wpan1: encryption failed: -22 [ 73.141386][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.157305][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.180343][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 73.199639][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.209120][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.217827][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 74.070711][ T4248] chnl_net:caif_netlink_parms(): no params data found [ 74.133029][ T4248] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.141926][ T4248] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.152188][ T4248] device bridge_slave_0 entered promiscuous mode [ 74.163689][ T4248] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.171204][ T4248] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.180428][ T4248] device bridge_slave_1 entered promiscuous mode [ 74.204775][ T4248] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.216297][ T4248] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.252142][ T4248] team0: Port device team_slave_0 added [ 74.260701][ T4248] team0: Port device team_slave_1 added [ 74.285284][ T4248] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.292821][ T4248] 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. [ 74.322280][ T4248] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.336392][ T4248] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.343878][ T4248] 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. [ 74.370805][ T4248] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.409155][ T4248] device hsr_slave_0 entered promiscuous mode [ 74.416188][ T4248] device hsr_slave_1 entered promiscuous mode [ 74.632827][ T4248] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.645269][ T4248] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.656583][ T4248] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.668969][ T4248] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.732159][ T4248] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.747187][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 74.760055][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.769060][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.781647][ T4248] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.793615][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 74.802639][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.813597][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.821004][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.831569][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 74.864893][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 74.874029][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.882736][ T144] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.889973][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.917884][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.928447][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.937788][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.952290][ T4231] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.979721][ T4231] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.991984][ T4248] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.102361][ T4231] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.110689][ T4231] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.147051][ T4248] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.165442][ T4231] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 75.174420][ T4231] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.209740][ T4231] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 75.218729][ T4231] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.228026][ T4231] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.236362][ T4231] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.248408][ T4248] device veth0_vlan entered promiscuous mode [ 75.278150][ T4248] device veth1_vlan entered promiscuous mode [ 75.300028][ T4231] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.308791][ T4231] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.317627][ T4231] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 75.326378][ T4231] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.337268][ T4248] device veth0_macvtap entered promiscuous mode [ 75.350045][ T4248] device veth1_macvtap entered promiscuous mode [ 75.378426][ T4248] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.386535][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.396246][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 75.405928][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.415811][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.427768][ T4248] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.450130][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.459444][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.471283][ T4248] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.481368][ T4248] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.490443][ T4248] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.499518][ T4248] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.613419][ T4248] syz-executor (4248) used greatest stack depth: 20688 bytes left [ 77.309683][ T864] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/05/02 15:47:16 executed programs: 0 [ 77.517972][ T4302] chnl_net:caif_netlink_parms(): no params data found [ 77.561175][ T4302] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.569186][ T4302] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.577379][ T4302] device bridge_slave_0 entered promiscuous mode [ 77.586329][ T4302] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.594690][ T4302] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.603048][ T4302] device bridge_slave_1 entered promiscuous mode [ 77.625558][ T4302] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.637275][ T4302] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.660437][ T4302] team0: Port device team_slave_0 added [ 77.668458][ T4302] team0: Port device team_slave_1 added [ 77.686386][ T4302] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 77.694237][ 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. [ 77.721204][ T4302] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 77.733970][ T4302] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 77.741731][ 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. [ 77.767941][ T4302] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 77.799403][ T4302] device hsr_slave_0 entered promiscuous mode [ 77.806806][ T4302] device hsr_slave_1 entered promiscuous mode [ 77.814179][ T4302] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 77.822267][ T4302] Cannot create hsr debugfs directory [ 79.514340][ T4265] Bluetooth: hci0: command 0x0409 tx timeout [ 80.261004][ T864] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.299543][ T864] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.372239][ T864] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.345974][ T4302] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 81.361311][ T4302] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 81.375046][ T4302] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 81.389815][ T4302] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 81.534654][ T4302] 8021q: adding VLAN 0 to HW filter on device bond0 [ 81.551941][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 81.564401][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 81.575359][ T4302] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.593429][ T4326] Bluetooth: hci0: command 0x041b tx timeout [ 81.623491][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 81.632777][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 81.641655][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.648933][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.671959][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 81.681464][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 81.690576][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 81.701784][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.708966][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.718794][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 81.727896][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 81.745549][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 81.755858][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 81.765483][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 81.776510][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 81.794969][ T4302] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 81.805533][ T4302] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 81.818301][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 81.829747][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 81.838788][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 81.850616][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 81.860161][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 81.869748][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 81.952538][ T864] device hsr_slave_0 left promiscuous mode [ 81.960275][ T864] device hsr_slave_1 left promiscuous mode [ 81.970605][ T864] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 81.979507][ T864] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 81.993014][ T864] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 82.003518][ T864] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 82.011763][ T864] device bridge_slave_1 left promiscuous mode [ 82.019927][ T864] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.040947][ T864] device bridge_slave_0 left promiscuous mode [ 82.047626][ T864] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.067437][ T864] device veth1_macvtap left promiscuous mode [ 82.074187][ T864] device veth0_macvtap left promiscuous mode [ 82.080744][ T864] device veth1_vlan left promiscuous mode [ 82.087624][ T864] device veth0_vlan left promiscuous mode [ 82.269275][ T864] team0 (unregistering): Port device team_slave_1 removed [ 82.284597][ T864] team0 (unregistering): Port device team_slave_0 removed [ 82.299112][ T864] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 82.318788][ T864] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 82.377285][ T864] bond0 (unregistering): Released all slaves [ 82.436656][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 82.444943][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 82.456739][ T4302] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 82.476817][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 82.486046][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 82.516309][ T4231] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 82.526543][ T4231] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 82.538298][ T4302] device veth0_vlan entered promiscuous mode [ 82.547089][ T4231] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 82.555667][ T4231] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 82.570916][ T4302] device veth1_vlan entered promiscuous mode [ 82.592675][ T4231] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 82.602037][ T4231] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 82.614311][ T4302] device veth0_macvtap entered promiscuous mode [ 82.626936][ T4302] device veth1_macvtap entered promiscuous mode [ 82.651690][ T4302] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 82.661355][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 82.670213][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 82.678363][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 82.688006][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 82.699375][ T4302] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 82.710343][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 82.720118][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 82.730813][ T4302] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.740705][ T4302] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.751190][ T4302] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.760264][ T4302] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.821111][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 82.835982][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 82.844548][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 82.862719][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 82.870838][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 82.879278][ T4231] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 82.947215][ T4379] [ 82.949711][ T4379] ============================= [ 82.964602][ T4379] WARNING: suspicious RCU usage [ 82.969511][ T4379] syzkaller #0 Not tainted [ 82.974560][ T4379] ----------------------------- [ 82.979450][ T4379] kernel/events/callchain.c:161 suspicious rcu_dereference_check() usage! [ 82.990608][ T4379] [ 82.990608][ T4379] other info that might help us debug this: [ 82.990608][ T4379] [ 83.001394][ T4379] [ 83.001394][ T4379] rcu_scheduler_active = 2, debug_locks = 1 [ 83.012179][ T4379] 1 lock held by syz.0.17/4379: [ 83.017707][ T4379] #0: ffffffff8c31eca0 (rcu_read_lock_trace){....}-{0:0}, at: rcu_lock_acquire+0x9/0x30 [ 83.029567][ T4379] [ 83.029567][ T4379] stack backtrace: [ 83.037292][ T4379] CPU: 1 PID: 4379 Comm: syz.0.17 Not tainted syzkaller #0 [ 83.044719][ T4379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 83.054908][ T4379] Call Trace: [ 83.058218][ T4379] [ 83.061183][ T4379] dump_stack_lvl+0x188/0x250 [ 83.065995][ T4379] ? load_image+0x400/0x400 [ 83.070534][ T4379] ? show_regs_print_info+0x20/0x20 [ 83.075878][ T4379] ? print_tainted+0x148/0x170 [ 83.080683][ T4379] ? lockdep_rcu_suspicious+0x110/0x180 [ 83.086261][ T4379] get_callchain_entry+0x2a5/0x3b0 [ 83.091407][ T4379] get_perf_callchain+0xab/0x460 [ 83.096382][ T4379] ? put_callchain_entry+0xb0/0xb0 [ 83.101619][ T4379] ? mark_lock+0x94/0x320 [ 83.105984][ T4379] ? verify_lock_unused+0x140/0x140 [ 83.111220][ T4379] ? __lock_acquire+0x13bc/0x7d10 [ 83.116282][ T4379] __bpf_get_stack+0x2db/0x530 [ 83.121094][ T4379] ? stack_map_get_build_id_offset+0x860/0x860 [ 83.127285][ T4379] ? __cant_sleep+0x220/0x220 [ 83.132003][ T4379] ? bpf_prog_14d9fb3786f83342+0x3d/0x834 [ 83.137756][ T4379] bpf_get_stack_raw_tp+0x189/0x1c0 [ 83.143005][ T4379] bpf_prog_14d9fb3786f83342+0x3d/0x834 [ 83.148587][ T4379] bpf_prog_run_pin_on_cpu+0x63/0x140 [ 83.154022][ T4379] bpf_prog_test_run_syscall+0x35a/0x4f0 [ 83.159802][ T4379] ? sock_gen_cookie+0x60/0x60 [ 83.164610][ T4379] ? __fdget+0x150/0x210 [ 83.168879][ T4379] ? sock_gen_cookie+0x60/0x60 [ 83.173682][ T4379] bpf_prog_test_run+0x31e/0x390 [ 83.178923][ T4379] __sys_bpf+0x5a5/0x6f0 [ 83.183200][ T4379] ? bpf_link_show_fdinfo+0x380/0x380 [ 83.188798][ T4379] ? vtime_user_exit+0x2c8/0x3e0 [ 83.193869][ T4379] __x64_sys_bpf+0x78/0x90 [ 83.198328][ T4379] do_syscall_64+0x4c/0xa0 [ 83.203064][ T4379] ? clear_bhb_loop+0x30/0x80 [ 83.207952][ T4379] ? clear_bhb_loop+0x30/0x80 [ 83.212667][ T4379] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.218603][ T4379] RIP: 0033:0x7ff0a7094dd9 [ 83.223067][ T4379] 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 [ 83.242831][ T4379] RSP: 002b:00007ffe91c942c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 83.251290][ T4379] RAX: ffffffffffffffda RBX: 00007ff0a730dfa0 RCX: 00007ff0a7094dd9 [ 83.259303][ T4379] RDX: 0000000000000010 RSI: 0000200000000740 RDI: 000000000000000a [ 83.267433][ T4379] RBP: 00007ff0a712ad69 R08: 0000000000000000 R09: 0000000000000000 [ 83.275635][ T4379] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 83.284359][ T4379] R13: 00007ff0a730dfac R14: 00007ff0a730dfa0 R15: 00007ff0a730dfa0 [ 83.292565][ T4379] [ 83.302827][ T4379] [ 83.305316][ T4379] ============================= [ 83.310372][ T4379] WARNING: suspicious RCU usage [ 83.317082][ T4379] syzkaller #0 Not tainted [ 83.321629][ T4379] ----------------------------- [ 83.327472][ T4379] include/linux/perf_event.h:1274 suspicious rcu_dereference_check() usage! [ 83.337777][ T4379] [ 83.337777][ T4379] other info that might help us debug this: [ 83.337777][ T4379] [ 83.348702][ T4379] [ 83.348702][ T4379] rcu_scheduler_active = 2, debug_locks = 1 [ 83.359316][ T4379] 1 lock held by syz.0.17/4379: [ 83.364981][ T4379] #0: ffffffff8c31eca0 (rcu_read_lock_trace){....}-{0:0}, at: rcu_lock_acquire+0x9/0x30 [ 83.376365][ T4379] [ 83.376365][ T4379] stack backtrace: [ 83.382289][ T4379] CPU: 1 PID: 4379 Comm: syz.0.17 Not tainted syzkaller #0 [ 83.389635][ T4379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 83.399716][ T4379] Call Trace: [ 83.403046][ T4379] [ 83.406092][ T4379] dump_stack_lvl+0x188/0x250 [ 83.410904][ T4379] ? load_image+0x400/0x400 [ 83.415456][ T4379] ? show_regs_print_info+0x20/0x20 [ 83.420696][ T4379] ? lockdep_rcu_suspicious+0x110/0x180 [ 83.426288][ T4379] perf_callchain_kernel+0x5f1/0x720 [ 83.431623][ T4379] ? load_image+0x400/0x400 [ 83.436161][ T4379] ? show_regs_print_info+0x20/0x20 [ 83.441396][ T4379] ? print_tainted+0x148/0x170 [ 83.446217][ T4379] ? arch_perf_update_userpage+0x3c0/0x3c0 [ 83.452081][ T4379] ? get_callchain_entry+0x181/0x3b0 [ 83.457400][ T4379] get_perf_callchain+0x356/0x460 [ 83.462476][ T4379] ? put_callchain_entry+0xb0/0xb0 [ 83.467621][ T4379] ? mark_lock+0x94/0x320 [ 83.471990][ T4379] ? verify_lock_unused+0x140/0x140 [ 83.477979][ T4379] ? __lock_acquire+0x13bc/0x7d10 [ 83.483052][ T4379] __bpf_get_stack+0x2db/0x530 [ 83.487871][ T4379] ? stack_map_get_build_id_offset+0x860/0x860 [ 83.494097][ T4379] ? __cant_sleep+0x220/0x220 [ 83.498812][ T4379] ? bpf_prog_14d9fb3786f83342+0x3d/0x834 [ 83.504563][ T4379] bpf_get_stack_raw_tp+0x189/0x1c0 [ 83.509811][ T4379] bpf_prog_14d9fb3786f83342+0x3d/0x834 [ 83.515404][ T4379] bpf_prog_run_pin_on_cpu+0x63/0x140 [ 83.520817][ T4379] bpf_prog_test_run_syscall+0x35a/0x4f0 [ 83.526485][ T4379] ? sock_gen_cookie+0x60/0x60 [ 83.531291][ T4379] ? __fdget+0x150/0x210 [ 83.535562][ T4379] ? sock_gen_cookie+0x60/0x60 [ 83.540374][ T4379] bpf_prog_test_run+0x31e/0x390 [ 83.545351][ T4379] __sys_bpf+0x5a5/0x6f0 [ 83.549631][ T4379] ? bpf_link_show_fdinfo+0x380/0x380 [ 83.555049][ T4379] ? vtime_user_exit+0x2c8/0x3e0 [ 83.560021][ T4379] __x64_sys_bpf+0x78/0x90 [ 83.564560][ T4379] do_syscall_64+0x4c/0xa0 [ 83.569009][ T4379] ? clear_bhb_loop+0x30/0x80 [ 83.573717][ T4379] ? clear_bhb_loop+0x30/0x80 [ 83.578424][ T4379] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.584352][ T4379] RIP: 0033:0x7ff0a7094dd9 [ 83.589048][ T4379] 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 [ 83.609269][ T4379] RSP: 002b:00007ffe91c942c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 83.617928][ T4379] RAX: ffffffffffffffda RBX: 00007ff0a730dfa0 RCX: 00007ff0a7094dd9 [ 83.625936][ T4379] RDX: 0000000000000010 RSI: 0000200000000740 RDI: 000000000000000a [ 83.633955][ T4379] RBP: 00007ff0a712ad69 R08: 0000000000000000 R09: 0000000000000000 [ 83.641960][ T4379] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 83.649976][ T4379] R13: 00007ff0a730dfac R14: 00007ff0a730dfa0 R15: 00007ff0a730dfa0 [ 83.658004][ T4379] [ 83.683466][ T7] Bluetooth: hci0: command 0x040f tx timeout