no interfaces have a carrier
[ 43.968288][ T3851] 8021q: adding VLAN 0 to HW filter on device bond0
[ 43.980243][ T3851] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting crond: OK
Starting sshd: OK
syzkaller
Warning: Permanently added '10.128.1.165' (ED25519) to the list of known hosts.
2026/07/23 09:46:30 parsed 1 programs
2026/07/23 09:46:30 serving rpc on tcp://41565
syzkaller login: [ 73.046146][ T4197] cgroup: Unknown subsys name 'net'
[ 73.184679][ T4197] cgroup: Unknown subsys name 'rlimit'
Setting up swapspace version 1, size = 127995904 bytes
[ 74.704115][ T4197] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS
[ 76.162593][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 76.180793][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 76.191785][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 76.215689][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 76.223647][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 76.231440][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
[ 77.212573][ T4238] chnl_net:caif_netlink_parms(): no params data found
[ 77.285778][ T4238] bridge0: port 1(bridge_slave_0) entered blocking state
[ 77.293778][ T4238] bridge0: port 1(bridge_slave_0) entered disabled state
[ 77.303427][ T4238] device bridge_slave_0 entered promiscuous mode
[ 77.313720][ T4238] bridge0: port 2(bridge_slave_1) entered blocking state
[ 77.322119][ T4238] bridge0: port 2(bridge_slave_1) entered disabled state
[ 77.330590][ T4238] device bridge_slave_1 entered promiscuous mode
[ 77.365101][ T4238] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 77.376821][ T4238] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 77.410139][ T4238] team0: Port device team_slave_0 added
[ 77.418813][ T4238] team0: Port device team_slave_1 added
[ 77.444385][ T4238] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 77.453000][ T4238] 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.
[ 77.480327][ T4238] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 77.493740][ T4238] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 77.502125][ T4238] 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.
[ 77.529482][ T4238] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 77.572470][ T4238] device hsr_slave_0 entered promiscuous mode
[ 77.579802][ T4238] device hsr_slave_1 entered promiscuous mode
[ 77.724628][ T4238] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 77.737503][ T4238] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 77.748698][ T4238] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 77.759553][ T4238] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 77.792516][ T4238] bridge0: port 2(bridge_slave_1) entered blocking state
[ 77.799844][ T4238] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 77.808036][ T4238] bridge0: port 1(bridge_slave_0) entered blocking state
[ 77.815158][ T4238] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 77.876964][ T4238] 8021q: adding VLAN 0 to HW filter on device bond0
[ 77.892774][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 77.904574][ T1282] bridge0: port 1(bridge_slave_0) entered disabled state
[ 77.916353][ T1282] bridge0: port 2(bridge_slave_1) entered disabled state
[ 77.925254][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[ 77.941155][ T4238] 8021q: adding VLAN 0 to HW filter on device team0
[ 77.954467][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 77.964198][ T247] bridge0: port 1(bridge_slave_0) entered blocking state
[ 77.971375][ T247] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 77.990928][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 78.000763][ T247] bridge0: port 2(bridge_slave_1) entered blocking state
[ 78.008063][ T247] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 78.029697][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[ 78.050709][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[ 78.060740][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[ 78.070832][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 78.080221][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 78.092817][ T4238] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[ 78.220280][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 78.230087][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 78.244758][ T4238] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 78.268240][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready
[ 78.278908][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 78.300996][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready
[ 78.319123][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 78.328773][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 78.336794][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 78.349676][ T4238] device veth0_vlan entered promiscuous mode
[ 78.366697][ T4238] device veth1_vlan entered promiscuous mode
[ 78.391903][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[ 78.401983][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[ 78.412127][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready
[ 78.423158][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 78.435657][ T4238] device veth0_macvtap entered promiscuous mode
[ 78.447382][ T4238] device veth1_macvtap entered promiscuous mode
[ 78.467373][ T4238] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 78.480337][ T4238] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 78.488253][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[ 78.497057][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready
[ 78.505624][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
[ 78.515415][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 78.524540][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
[ 78.533984][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 78.548620][ T4238] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 78.557497][ T4238] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 78.566842][ T4238] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 78.576913][ T4238] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 78.823583][ T154] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 81.325213][ T154] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 83.973201][ T154] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 84.015797][ T154] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 85.492964][ T154] device hsr_slave_0 left promiscuous mode
[ 85.501213][ T154] device hsr_slave_1 left promiscuous mode
[ 85.510023][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 85.517626][ T154] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 85.527079][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 85.535189][ T154] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 85.543341][ T154] device bridge_slave_1 left promiscuous mode
[ 85.550615][ T154] bridge0: port 2(bridge_slave_1) entered disabled state
[ 85.566470][ T154] device bridge_slave_0 left promiscuous mode
[ 85.574596][ T154] bridge0: port 1(bridge_slave_0) entered disabled state
[ 85.599521][ T154] device veth1_macvtap left promiscuous mode
[ 85.606174][ T154] device veth0_macvtap left promiscuous mode
[ 85.614615][ T154] device veth1_vlan left promiscuous mode
[ 85.621107][ T154] device veth0_vlan left promiscuous mode
[ 85.820075][ T154] team0 (unregistering): Port device team_slave_1 removed
[ 85.834766][ T154] team0 (unregistering): Port device team_slave_0 removed
[ 85.848969][ T154] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 85.864690][ T154] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 85.922898][ T154] bond0 (unregistering): Released all slaves
[ 86.711675][ T13] cfg80211: failed to load regulatory.db
2026/07/23 09:46:46 executed programs: 0
[ 87.548802][ T4374] chnl_net:caif_netlink_parms(): no params data found
[ 87.680754][ T4374] bridge0: port 1(bridge_slave_0) entered blocking state
[ 87.718015][ T4374] bridge0: port 1(bridge_slave_0) entered disabled state
[ 87.742211][ T4374] device bridge_slave_0 entered promiscuous mode
[ 87.771231][ T4374] bridge0: port 2(bridge_slave_1) entered blocking state
[ 87.798002][ T4374] bridge0: port 2(bridge_slave_1) entered disabled state
[ 87.809818][ T4374] device bridge_slave_1 entered promiscuous mode
[ 87.871910][ T4374] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 87.892266][ T4374] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 87.924899][ T4374] team0: Port device team_slave_0 added
[ 87.934675][ T4374] team0: Port device team_slave_1 added
[ 87.989209][ T4374] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 87.996296][ T4374] 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.
[ 88.025545][ T4374] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 88.040260][ T4374] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 88.047262][ T4374] 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.
[ 88.075854][ T4374] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 88.144106][ T4374] device hsr_slave_0 entered promiscuous mode
[ 88.151165][ T4374] device hsr_slave_1 entered promiscuous mode
[ 88.810573][ T4374] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 88.896973][ T4374] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 88.929157][ T4374] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 88.959773][ T4374] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 89.074553][ T4374] 8021q: adding VLAN 0 to HW filter on device bond0
[ 89.091605][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[ 89.101689][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 89.115551][ T4374] 8021q: adding VLAN 0 to HW filter on device team0
[ 89.126048][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
[ 89.135577][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 89.145719][ T9] bridge0: port 1(bridge_slave_0) entered blocking state
[ 89.152911][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 89.165106][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
[ 89.178515][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
[ 89.188394][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 89.197126][ T247] bridge0: port 2(bridge_slave_1) entered blocking state
[ 89.204393][ T247] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 89.228744][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready
[ 89.239200][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready
[ 89.249612][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready
[ 89.261045][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[ 89.278988][ T4429] Bluetooth: hci0: command 0x0409 tx timeout
[ 89.282657][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[ 89.295565][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready
[ 89.305084][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[ 89.316490][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready
[ 89.326504][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 89.341697][ T4374] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network
[ 89.356549][ T4374] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[ 89.365945][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready
[ 89.379147][ T247] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 89.557856][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 89.565389][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 89.580565][ T4374] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 89.605173][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready
[ 89.616729][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 89.638304][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready
[ 89.646724][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 89.658426][ T4374] device veth0_vlan entered promiscuous mode
[ 89.674412][ T4374] device veth1_vlan entered promiscuous mode
[ 89.688255][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 89.696432][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 89.704707][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[ 89.732108][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[ 89.741650][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready
[ 89.751462][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 89.765679][ T4374] device veth0_macvtap entered promiscuous mode
[ 89.808303][ T4374] device veth1_macvtap entered promiscuous mode
[ 89.831949][ T4374] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 89.840798][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[ 89.851515][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready
[ 89.861345][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
[ 89.870476][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 89.913225][ T4374] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 89.923680][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
[ 89.935791][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 89.952723][ T4374] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 89.963347][ T4374] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 89.973422][ T4374] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 89.983771][ T4374] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 90.114828][ T247] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 90.133789][ T247] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 90.162951][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 90.209935][ T1282] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 90.222920][ T1282] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 90.243745][ T1282] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
[ 90.346639][ T4480]
[ 90.351038][ T4480] =============================
[ 90.356071][ T4480] WARNING: suspicious RCU usage
[ 90.361617][ T4480] syzkaller #0 Not tainted
[ 90.366074][ T4480] -----------------------------
[ 90.373405][ T4480] kernel/events/callchain.c:161 suspicious rcu_dereference_check() usage!
[ 90.382604][ T4480]
[ 90.382604][ T4480] other info that might help us debug this:
[ 90.382604][ T4480]
[ 90.409004][ T4480]
[ 90.409004][ T4480] rcu_scheduler_active = 2, debug_locks = 1
[ 90.417673][ T4480] 1 lock held by syz.0.17/4480:
[ 90.433255][ T4480] #0: ffffffff8c31f0a0 (rcu_read_lock_trace){....}-{0:0}, at: rcu_lock_acquire+0x9/0x30
[ 90.478283][ T4480]
[ 90.478283][ T4480] stack backtrace:
[ 90.484521][ T4480] CPU: 0 PID: 4480 Comm: syz.0.17 Not tainted syzkaller #0
[ 90.491797][ T4480] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
[ 90.502020][ T4480] Call Trace:
[ 90.505642][ T4480]
[ 90.508632][ T4480] dump_stack_lvl+0x188/0x250
[ 90.513363][ T4480] ? load_image+0x410/0x410
[ 90.517912][ T4480] ? show_regs_print_info+0x20/0x20
[ 90.523164][ T4480] ? print_tainted+0x148/0x170
[ 90.528017][ T4480] ? lockdep_rcu_suspicious+0x110/0x180
[ 90.533614][ T4480] get_callchain_entry+0x2a5/0x3b0
[ 90.538776][ T4480] get_perf_callchain+0xab/0x460
[ 90.543759][ T4480] ? put_callchain_entry+0xb0/0xb0
[ 90.548911][ T4480] ? mark_lock+0x94/0x320
[ 90.553282][ T4480] __bpf_get_stack+0x2db/0x530
[ 90.558099][ T4480] ? stack_map_get_build_id_offset+0x860/0x860
[ 90.564341][ T4480] ? __cant_sleep+0x220/0x220
[ 90.569095][ T4480] ? bpf_prog_14d9fb3786f83342+0x3d/0xad8
[ 90.574868][ T4480] bpf_get_stack_raw_tp+0x189/0x1c0
[ 90.580113][ T4480] bpf_prog_14d9fb3786f83342+0x3d/0xad8
[ 90.585706][ T4480] bpf_prog_run_pin_on_cpu+0x63/0x140
[ 90.591123][ T4480] bpf_prog_test_run_syscall+0x361/0x500
[ 90.596803][ T4480] ? _raw_spin_unlock+0x24/0x40
[ 90.601698][ T4480] ? sock_gen_cookie+0x60/0x60
[ 90.606511][ T4480] ? __fdget+0x150/0x210
[ 90.610829][ T4480] ? sock_gen_cookie+0x60/0x60
[ 90.615634][ T4480] bpf_prog_test_run+0x31c/0x390
[ 90.620790][ T4480] __sys_bpf+0x5a5/0x6f0
[ 90.625078][ T4480] ? bpf_link_show_fdinfo+0x380/0x380
[ 90.630736][ T4480] __x64_sys_bpf+0x78/0x90
[ 90.635316][ T4480] do_syscall_64+0x4c/0xa0
[ 90.639779][ T4480] ? clear_bhb_loop+0x30/0x80
[ 90.644502][ T4480] ? clear_bhb_loop+0x30/0x80
[ 90.649227][ T4480] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 90.655201][ T4480] RIP: 0033:0x7f5bcd915e99
[ 90.659663][ T4480] 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
[ 90.679396][ T4480] RSP: 002b:00007fff3d88ec88 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
[ 90.687856][ T4480] RAX: ffffffffffffffda RBX: 00007f5bcdb9dfa0 RCX: 00007f5bcd915e99
[ 90.695969][ T4480] RDX: 0000000000000010 RSI: 0000200000000740 RDI: 000000000000000a
[ 90.703984][ T4480] RBP: 00007f5bcd9abeaf R08: 0000000000000000 R09: 0000000000000000
[ 90.711995][ T4480] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 90.720100][ T4480] R13: 00007f5bcdb9dfac R14: 00007f5bcdb9dfa0 R15: 00007f5bcdb9dfa0
[ 90.728147][ T4480]
[ 90.751031][ T4480]
[ 90.753445][ T4480] =============================
[ 90.758777][ T4480] WARNING: suspicious RCU usage
[ 90.763947][ T4480] syzkaller #0 Not tainted
[ 90.769679][ T4480] -----------------------------
[ 90.788145][ T4480] include/linux/perf_event.h:1274 suspicious rcu_dereference_check() usage!
[ 90.796889][ T4480]
[ 90.796889][ T4480] other info that might help us debug this:
[ 90.796889][ T4480]
[ 90.808583][ T4480]
[ 90.808583][ T4480] rcu_scheduler_active = 2, debug_locks = 1
[ 90.816966][ T4480] 1 lock held by syz.0.17/4480:
[ 90.822933][ T4480] #0: ffffffff8c31f0a0 (rcu_read_lock_trace){....}-{0:0}, at: rcu_lock_acquire+0x9/0x30
[ 90.833611][ T4480]
[ 90.833611][ T4480] stack backtrace:
[ 90.845342][ T4480] CPU: 0 PID: 4480 Comm: syz.0.17 Not tainted syzkaller #0
[ 90.852596][ T4480] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
[ 90.862687][ T4480] Call Trace:
[ 90.865996][ T4480]
[ 90.868959][ T4480] dump_stack_lvl+0x188/0x250
[ 90.873682][ T4480] ? load_image+0x410/0x410
[ 90.878233][ T4480] ? show_regs_print_info+0x20/0x20
[ 90.883497][ T4480] ? lockdep_rcu_suspicious+0x110/0x180
[ 90.889089][ T4480] perf_callchain_kernel+0x625/0x760
[ 90.894419][ T4480] ? load_image+0x410/0x410
[ 90.898974][ T4480] ? show_regs_print_info+0x20/0x20
[ 90.904221][ T4480] ? print_tainted+0x148/0x170
[ 90.909019][ T4480] ? arch_perf_update_userpage+0x3c0/0x3c0
[ 90.914890][ T4480] ? get_callchain_entry+0x181/0x3b0
[ 90.920216][ T4480] get_perf_callchain+0x356/0x460
[ 90.925285][ T4480] ? put_callchain_entry+0xb0/0xb0
[ 90.930619][ T4480] ? mark_lock+0x94/0x320
[ 90.935027][ T4480] __bpf_get_stack+0x2db/0x530
[ 90.939865][ T4480] ? stack_map_get_build_id_offset+0x860/0x860
[ 90.946079][ T4480] ? __cant_sleep+0x220/0x220
[ 90.950794][ T4480] ? bpf_prog_14d9fb3786f83342+0x3d/0xad8
[ 90.956555][ T4480] bpf_get_stack_raw_tp+0x189/0x1c0
[ 90.961804][ T4480] bpf_prog_14d9fb3786f83342+0x3d/0xad8
[ 90.967390][ T4480] bpf_prog_run_pin_on_cpu+0x63/0x140
[ 90.972801][ T4480] bpf_prog_test_run_syscall+0x361/0x500
[ 90.978647][ T4480] ? _raw_spin_unlock+0x24/0x40
[ 90.983599][ T4480] ? sock_gen_cookie+0x60/0x60
[ 90.988403][ T4480] ? __fdget+0x150/0x210
[ 90.992705][ T4480] ? sock_gen_cookie+0x60/0x60
[ 90.997625][ T4480] bpf_prog_test_run+0x31c/0x390
[ 91.002611][ T4480] __sys_bpf+0x5a5/0x6f0
[ 91.007730][ T4480] ? bpf_link_show_fdinfo+0x380/0x380
[ 91.013196][ T4480] __x64_sys_bpf+0x78/0x90
[ 91.017660][ T4480] do_syscall_64+0x4c/0xa0
[ 91.022114][ T4480] ? clear_bhb_loop+0x30/0x80
[ 91.026837][ T4480] ? clear_bhb_loop+0x30/0x80
[ 91.031550][ T4480] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 91.037486][ T4480] RIP: 0033:0x7f5bcd915e99
[ 91.041932][ T4480] 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
[ 91.061682][ T4480] RSP: 002b:00007fff3d88ec88 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
[ 91.070173][ T4480] RAX: ffffffffffffffda RBX: 00007f5bcdb9dfa0 RCX: 00007f5bcd915e99
[ 91.078186][ T4480] RDX: 0000000000000010 RSI: 0000200000000740 RDI: 000000000000000a
[ 91.086197][ T4480] RBP: 00007f5bcd9abeaf R08: 0000000000000000 R09: 0000000000000000
[ 91.094207][ T4480] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 91.102214][ T4480] R13: 00007f5bcdb9dfac R14: 00007f5bcdb9dfa0 R15: 00007f5bcdb9dfa0
[ 91.110416][ T4480]