[ 15.636132][ T3891] 8021q: adding VLAN 0 to HW filter on device bond0 [ 15.641028][ T3891] eql: remember to turn off Van-Jacobson compression on your slave devices [ 15.679335][ T263] gvnic 0000:00:00.0 enp0s0: Device link is up. [ 15.683155][ T1510] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s0: link becomes ready Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.76' (ECDSA) to the list of known hosts. syzkaller login: [ 37.374979][ T4216] chnl_net:caif_netlink_parms(): no params data found [ 37.406420][ T4216] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.408289][ T4216] bridge0: port 1(bridge_slave_0) entered disabled state [ 37.410721][ T4216] device bridge_slave_0 entered promiscuous mode [ 37.414430][ T4216] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.416210][ T4216] bridge0: port 2(bridge_slave_1) entered disabled state [ 37.418403][ T4216] device bridge_slave_1 entered promiscuous mode [ 37.432349][ T4216] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 37.436203][ T4216] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 37.448805][ T4216] team0: Port device team_slave_0 added [ 37.451953][ T4216] team0: Port device team_slave_1 added [ 37.464180][ T4216] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 37.465885][ T4216] 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. [ 37.472347][ T4216] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 37.476293][ T4216] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 37.477958][ T4216] 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. [ 37.484159][ T4216] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 37.541072][ T4216] device hsr_slave_0 entered promiscuous mode [ 37.599236][ T4216] device hsr_slave_1 entered promiscuous mode [ 37.724363][ T4216] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 37.761404][ T4216] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 37.811574][ T4216] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 37.861514][ T4216] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 37.914358][ T4216] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.916032][ T4216] bridge0: port 2(bridge_slave_1) entered forwarding state [ 37.918234][ T4216] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.920053][ T4216] bridge0: port 1(bridge_slave_0) entered forwarding state [ 37.954402][ T4216] 8021q: adding VLAN 0 to HW filter on device bond0 [ 37.961423][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 37.965072][ T14] bridge0: port 1(bridge_slave_0) entered disabled state [ 37.967937][ T14] bridge0: port 2(bridge_slave_1) entered disabled state [ 37.970771][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 37.977008][ T4216] 8021q: adding VLAN 0 to HW filter on device team0 [ 37.991093][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 37.993511][ T14] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.995314][ T14] bridge0: port 1(bridge_slave_0) entered forwarding state [ 37.997448][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 38.000979][ T14] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.002719][ T14] bridge0: port 2(bridge_slave_1) entered forwarding state [ 38.011479][ T4223] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 38.014192][ T4223] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 38.023462][ T4216] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 38.025962][ T4216] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 38.033611][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 38.036012][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 38.038574][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 38.041161][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 38.053476][ T4223] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 38.055337][ T4223] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 38.062026][ T4216] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 38.075491][ T4223] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 38.087228][ T4223] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 38.090786][ T4223] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 38.092887][ T4223] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 38.096366][ T4216] device veth0_vlan entered promiscuous mode [ 38.101649][ T4216] device veth1_vlan entered promiscuous mode [ 38.113300][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 38.115565][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 38.118166][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 38.122322][ T4216] device veth0_macvtap entered promiscuous mode [ 38.126246][ T4216] device veth1_macvtap entered promiscuous mode [ 38.138432][ T4216] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 38.140474][ T4223] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 38.143891][ T4223] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 38.152068][ T4216] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 38.154132][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 38.169156][ T4216] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.171341][ T4216] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.173405][ T4216] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.175393][ T4216] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 64.128870][ C0] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor256:4302] [ 64.131669][ C0] Modules linked in: [ 64.132741][ C0] irq event stamp: 5009 [ 64.133773][ C0] hardirqs last enabled at (5008): [] exit_to_kernel_mode+0xe8/0x118 [ 64.136030][ C0] hardirqs last disabled at (5009): [] el1_interrupt+0x24/0x68 [ 64.138452][ C0] softirqs last enabled at (512): [] local_bh_enable+0x10/0x34 [ 64.140627][ C0] softirqs last disabled at (518): [] fq_pie_change+0x23c/0xda4 [ 64.142843][ C0] CPU: 0 PID: 4302 Comm: syz-executor256 Not tainted 6.1.31-syzkaller #0 [ 64.145035][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 [ 64.147429][ C0] pstate: 00400005 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 64.149213][ C0] pc : queued_spin_lock_slowpath+0x15c/0xe48 [ 64.150660][ C0] lr : queued_spin_lock_slowpath+0x168/0xe48 [ 64.152121][ C0] sp : ffff80001dcd6b60 [ 64.153131][ C0] x29: ffff80001dcd6c00 x28: 1fffe0001b28461e x27: 1ffff00003b9ad78 [ 64.155026][ C0] x26: dfff800000000000 x25: 1fffe0001b284620 x24: ffff80001dcd6b80 [ 64.157047][ C0] x23: ffff80001dcd6bc0 x22: ffff700003b9ad70 x21: 0000000000000001 [ 64.159129][ C0] x20: 0000000000000001 x19: ffff0000d94230f0 x18: ffff0000cd6b0010 [ 64.161148][ C0] x17: 0000000000000000 x16: ffff80000896d2d4 x15: 0000000000000000 [ 64.163062][ C0] x14: 1ffff00002ab80b0 x13: dfff800000000000 x12: 0000000000000001 [ 64.164946][ C0] x11: 1fffe0001b28461e x10: 0000000000000000 x9 : 0000000000000000 [ 64.166907][ C0] x8 : 0000000000000101 x7 : ffff800010711c4c x6 : 0000000000000000 [ 64.168904][ C0] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000121dcbf4 [ 64.170906][ C0] x2 : 0000000000000000 x1 : 0000000000000004 x0 : 0000000000000001 [ 64.173005][ C0] Call trace: [ 64.173861][ C0] queued_spin_lock_slowpath+0x15c/0xe48 [ 64.175252][ C0] do_raw_spin_lock+0x330/0x358 [ 64.176455][ C0] _raw_spin_lock_bh+0x5c/0x6c [ 64.177616][ C0] fq_pie_change+0x23c/0xda4 [ 64.178805][ C0] fq_pie_init+0x2b0/0x714 [ 64.179936][ C0] qdisc_create+0x6ac/0xde4 [ 64.181066][ C0] tc_modify_qdisc+0x954/0x16c0 [ 64.182227][ C0] rtnetlink_rcv_msg+0x72c/0xd94 [ 64.183448][ C0] netlink_rcv_skb+0x20c/0x3b8 [ 64.184543][ C0] rtnetlink_rcv+0x28/0x38 [ 64.185679][ C0] netlink_unicast+0x660/0x8d4 [ 64.186759][ C0] netlink_sendmsg+0x834/0xb18 [ 64.187857][ C0] ____sys_sendmsg+0x558/0x844 [ 64.189016][ C0] __sys_sendmsg+0x26c/0x33c [ 64.190106][ C0] __arm64_sys_sendmsg+0x80/0x94 [ 64.191307][ C0] invoke_syscall+0x98/0x2c0 [ 64.192359][ C0] el0_svc_common+0x138/0x258 [ 64.193564][ C0] do_el0_svc+0x64/0x218 [ 64.194588][ C0] el0_svc+0x58/0x168 [ 64.195580][ C0] el0t_64_sync_handler+0x84/0xf0 [ 64.196888][ C0] el0t_64_sync+0x18c/0x190 [ 64.198124][ C0] Kernel panic - not syncing: softlockup: hung tasks [ 64.199744][ C0] CPU: 0 PID: 4302 Comm: syz-executor256 Tainted: G L 6.1.31-syzkaller #0 [ 64.202191][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 [ 64.204741][ C0] Call trace: [ 64.205547][ C0] dump_backtrace+0x1c8/0x1f4 [ 64.206754][ C0] show_stack+0x2c/0x3c [ 64.207764][ C0] dump_stack_lvl+0x108/0x170 [ 64.208976][ C0] dump_stack+0x1c/0x58 [ 64.210091][ C0] panic+0x300/0x7fc [ 64.211010][ C0] softlockup_fn+0x0/0x120 [ 64.212150][ C0] __hrtimer_run_queues+0x484/0xdc0 [ 64.213466][ C0] hrtimer_interrupt+0x2c0/0xb64 [ 64.214761][ C0] arch_timer_handler_virt+0x74/0x88 [ 64.216097][ C0] handle_percpu_devid_irq+0x174/0x354 [ 64.217377][ C0] generic_handle_domain_irq+0x7c/0xc4 [ 64.218652][ C0] gic_handle_irq+0x70/0x1e4 [ 64.219824][ C0] call_on_irq_stack+0x24/0x4c [ 64.220976][ C0] do_interrupt_handler+0xd4/0x138 [ 64.222201][ C0] el1_interrupt+0x34/0x68 [ 64.223419][ C0] el1h_64_irq_handler+0x18/0x24 [ 64.224643][ C0] el1h_64_irq+0x64/0x68 [ 64.225719][ C0] queued_spin_lock_slowpath+0x15c/0xe48 [ 64.227164][ C0] do_raw_spin_lock+0x330/0x358 [ 64.228387][ C0] _raw_spin_lock_bh+0x5c/0x6c [ 64.229662][ C0] fq_pie_change+0x23c/0xda4 [ 64.230817][ C0] fq_pie_init+0x2b0/0x714 [ 64.231956][ C0] qdisc_create+0x6ac/0xde4 [ 64.233080][ C0] tc_modify_qdisc+0x954/0x16c0 [ 64.234175][ C0] rtnetlink_rcv_msg+0x72c/0xd94 [ 64.235441][ C0] netlink_rcv_skb+0x20c/0x3b8 [ 64.236583][ C0] rtnetlink_rcv+0x28/0x38 [ 64.237536][ C0] netlink_unicast+0x660/0x8d4 [ 64.238745][ C0] netlink_sendmsg+0x834/0xb18 [ 64.239858][ C0] ____sys_sendmsg+0x558/0x844 [ 64.241102][ C0] __sys_sendmsg+0x26c/0x33c [ 64.242235][ C0] __arm64_sys_sendmsg+0x80/0x94 [ 64.243395][ C0] invoke_syscall+0x98/0x2c0 [ 64.244517][ C0] el0_svc_common+0x138/0x258 [ 64.245646][ C0] do_el0_svc+0x64/0x218 [ 64.246689][ C0] el0_svc+0x58/0x168 [ 64.247645][ C0] el0t_64_sync_handler+0x84/0xf0 [ 64.248956][ C0] el0t_64_sync+0x18c/0x190 [ 64.250045][ C0] SMP: stopping secondary CPUs [ 64.251151][ C0] Kernel Offset: disabled [ 64.252263][ C0] CPU features: 0x00000,02070084,26017203 [ 64.253630][ C0] Memory Limit: none [ 64.267993][ C0] [ 64.268542][ C0] ================================ [ 64.269829][ C0] WARNING: inconsistent lock state [ 64.271067][ C0] 6.1.31-syzkaller #0 Tainted: G L [ 64.272554][ C0] -------------------------------- [ 64.273866][ C0] inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage. [ 64.275502][ C0] syz-executor256/4302 [HC1[1]:SC0[2]:HE0:SE0] takes: [ 64.277058][ C0] ffff800015600e78 (efi_rt_lock){?...}-{2:2}, at: virt_efi_set_variable_nonblocking+0x74/0x16c [ 64.279548][ C0] {HARDIRQ-ON-W} state was registered at: [ 64.280944][ C0] lock_acquire+0x26c/0x7cc [ 64.282075][ C0] _raw_spin_lock+0x54/0x6c [ 64.283231][ C0] efi_call_rts+0x80/0x9d8 [ 64.284393][ C0] process_one_work+0x7ac/0x1404 [ 64.285648][ C0] worker_thread+0x8e4/0xfec [ 64.286826][ C0] kthread+0x250/0x2d8 [ 64.287870][ C0] ret_from_fork+0x10/0x20 [ 64.288919][ C0] irq event stamp: 5009 [ 64.289949][ C0] hardirqs last enabled at (5008): [] exit_to_kernel_mode+0xe8/0x118 [ 64.292286][ C0] hardirqs last disabled at (5009): [] el1_interrupt+0x24/0x68 [ 64.294532][ C0] softirqs last enabled at (512): [] local_bh_enable+0x10/0x34 [ 64.296817][ C0] softirqs last disabled at (518): [] fq_pie_change+0x23c/0xda4 [ 64.299098][ C0] [ 64.299098][ C0] other info that might help us debug this: [ 64.301021][ C0] Possible unsafe locking scenario: [ 64.301021][ C0] [ 64.302891][ C0] CPU0 [ 64.303624][ C0] ---- [ 64.304426][ C0] lock(efi_rt_lock); [ 64.305468][ C0] [ 64.306311][ C0] lock(efi_rt_lock); [ 64.307329][ C0] [ 64.307329][ C0] *** DEADLOCK *** [ 64.307329][ C0] [ 64.309315][ C0] 4 locks held by syz-executor256/4302: [ 64.310796][ C0] #0: ffff800017b8d868 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e8/0xd94 [ 64.313164][ C0] #1: ffff0000d9423108 (&sch->q.lock){+.-.}-{2:2}, at: fq_pie_change+0x23c/0xda4 [ 64.315570][ C0] #2: ffff800015794ca0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x10/0x4c [ 64.317878][ C0] #3: ffff8000175dc5c8 (&psinfo->buf_lock){....}-{2:2}, at: pstore_dump+0x184/0x9f4 [ 64.320313][ C0] [ 64.320313][ C0] stack backtrace: [ 64.321767][ C0] CPU: 0 PID: 4302 Comm: syz-executor256 Tainted: G L 6.1.31-syzkaller #0 [ 64.324307][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 [ 64.326710][ C0] Call trace: [ 64.327448][ C0] dump_backtrace+0x1c8/0x1f4 [ 64.328580][ C0] show_stack+0x2c/0x3c [ 64.329573][ C0] dump_stack_lvl+0x108/0x170 [ 64.330720][ C0] dump_stack+0x1c/0x58 [ 64.331677][ C0] print_usage_bug+0x654/0x9b0 [ 64.332772][ C0] mark_lock_irq+0x980/0xd2c [ 64.333777][ C0] mark_lock+0x258/0x360 [ 64.334838][ C0] __lock_acquire+0xb4c/0x764c [ 64.335935][ C0] lock_acquire+0x26c/0x7cc [ 64.337009][ C0] _raw_spin_lock+0x54/0x6c [ 64.338150][ C0] virt_efi_set_variable_nonblocking+0x74/0x16c [ 64.339729][ C0] efivar_set_variable_locked+0x1e4/0x20c [ 64.341030][ C0] efi_pstore_write+0x424/0x64c [ 64.342178][ C0] pstore_dump+0x6c0/0x9f4 [ 64.343254][ C0] kmsg_dump+0x17c/0x26c [ 64.344272][ C0] panic+0x348/0x7fc [ 64.345214][ C0] softlockup_fn+0x0/0x120 [ 64.346206][ C0] __hrtimer_run_queues+0x484/0xdc0 [ 64.347441][ C0] hrtimer_interrupt+0x2c0/0xb64 [ 64.348550][ C0] arch_timer_handler_virt+0x74/0x88 [ 64.349808][ C0] handle_percpu_devid_irq+0x174/0x354 [ 64.351137][ C0] generic_handle_domain_irq+0x7c/0xc4 [ 64.352410][ C0] gic_handle_irq+0x70/0x1e4 [ 64.353541][ C0] call_on_irq_stack+0x24/0x4c [ 64.354647][ C0] do_interrupt_handler+0xd4/0x138 [ 64.355980][ C0] el1_interrupt+0x34/0x68 [ 64.357055][ C0] el1h_64_irq_handler+0x18/0x24 [ 64.358209][ C0] el1h_64_irq+0x64/0x68 [ 64.359196][ C0] queued_spin_lock_slowpath+0x15c/0xe48 [ 64.360566][ C0] do_raw_spin_lock+0x330/0x358 [ 64.361723][ C0] _raw_spin_lock_bh+0x5c/0x6c [ 64.362866][ C0] fq_pie_change+0x23c/0xda4 [ 64.363919][ C0] fq_pie_init+0x2b0/0x714 [ 64.365086][ C0] qdisc_create+0x6ac/0xde4 [ 64.366238][ C0] tc_modify_qdisc+0x954/0x16c0 [ 64.367484][ C0] rtnetlink_rcv_msg+0x72c/0xd94 [ 64.368614][ C0] netlink_rcv_skb+0x20c/0x3b8 [ 64.369759][ C0] rtnetlink_rcv+0x28/0x38 [ 64.370862][ C0] netlink_unicast+0x660/0x8d4 [ 64.371982][ C0] netlink_sendmsg+0x834/0xb18 [ 64.373128][ C0] ____sys_sendmsg+0x558/0x844 [ 64.374294][ C0] __sys_sendmsg+0x26c/0x33c [ 64.375529][ C0] __arm64_sys_sendmsg+0x80/0x94 [ 64.376686][ C0] invoke_syscall+0x98/0x2c0 [ 64.377802][ C0] el0_svc_common+0x138/0x258 [ 64.379001][ C0] do_el0_svc+0x64/0x218 [ 64.380021][ C0] el0_svc+0x58/0x168 [ 64.380893][ C0] el0t_64_sync_handler+0x84/0xf0 [ 64.382063][ C0] el0t_64_sync+0x18c/0x190 [ 64.706482][ C0] Rebooting in 86400 seconds..