Warning: Permanently added '10.128.0.34' (ECDSA) to the list of known hosts. syzkaller login: [ 458.720061][ T6843] IPVS: ftp: loaded support on port[0] = 21 [ 458.809368][ T6843] chnl_net:caif_netlink_parms(): no params data found [ 458.861801][ T6843] bridge0: port 1(bridge_slave_0) entered blocking state [ 458.869583][ T6843] bridge0: port 1(bridge_slave_0) entered disabled state [ 458.877741][ T6843] device bridge_slave_0 entered promiscuous mode [ 458.887757][ T6843] bridge0: port 2(bridge_slave_1) entered blocking state [ 458.895734][ T6843] bridge0: port 2(bridge_slave_1) entered disabled state [ 458.904099][ T6843] device bridge_slave_1 entered promiscuous mode [ 458.925691][ T6843] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 458.936726][ T6843] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 458.959363][ T6843] team0: Port device team_slave_0 added [ 458.967333][ T6843] team0: Port device team_slave_1 added [ 458.986953][ T6843] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 458.994049][ T6843] 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. [ 459.021160][ T6843] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 459.034230][ T6843] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 459.041957][ T6843] 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. [ 459.068959][ T6843] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 459.096116][ T6843] device hsr_slave_0 entered promiscuous mode [ 459.103077][ T6843] device hsr_slave_1 entered promiscuous mode [ 459.201310][ T6843] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 459.212522][ T6843] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 459.223999][ T6843] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 459.233257][ T6843] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 459.257417][ T6843] bridge0: port 2(bridge_slave_1) entered blocking state [ 459.264709][ T6843] bridge0: port 2(bridge_slave_1) entered forwarding state [ 459.272817][ T6843] bridge0: port 1(bridge_slave_0) entered blocking state [ 459.280053][ T6843] bridge0: port 1(bridge_slave_0) entered forwarding state [ 459.322743][ T6843] 8021q: adding VLAN 0 to HW filter on device bond0 [ 459.341462][ T6835] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 459.353990][ T6835] bridge0: port 1(bridge_slave_0) entered disabled state [ 459.362639][ T6835] bridge0: port 2(bridge_slave_1) entered disabled state [ 459.370817][ T6835] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 459.383020][ T6843] 8021q: adding VLAN 0 to HW filter on device team0 [ 459.394752][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 459.403401][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 459.410567][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 459.429237][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 459.437620][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 459.444744][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 459.466147][ T6843] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 459.477609][ T6843] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 459.492617][ T6904] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 459.503685][ T6904] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 459.513340][ T6904] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 459.522817][ T6904] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 459.539959][ T6904] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 459.547515][ T6904] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 459.555294][ T6904] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 459.563583][ T6904] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 459.579350][ T6843] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 459.601028][ T6835] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 459.620957][ T7053] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 459.631306][ T7053] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 459.639418][ T7053] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 459.651710][ T6843] device veth0_vlan entered promiscuous mode [ 459.663778][ T6843] device veth1_vlan entered promiscuous mode [ 459.685253][ T7053] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 459.694371][ T7053] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 459.703437][ T7053] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 459.714952][ T6843] device veth0_macvtap entered promiscuous mode [ 459.726869][ T6843] device veth1_macvtap entered promiscuous mode [ 459.745260][ T6843] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 459.753966][ T7053] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 459.764334][ T7053] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 459.776592][ T6843] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 459.785051][ T6835] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 459.796589][ T6843] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 459.806736][ T6843] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 459.816023][ T6843] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 459.825145][ T6843] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 459.927269][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 616.198350][ T1169] INFO: task syz-executor531:6843 blocked for more than 143 seconds. [ 616.206702][ T1169] Not tainted 5.9.0-rc3-syzkaller #0 [ 616.216216][ T1169] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 616.228595][ T1169] task:syz-executor531 state:D stack:24864 pid: 6843 ppid: 6842 flags:0x00004000 [ 616.238275][ T1169] Call Trace: [ 616.241696][ T1169] __schedule+0x9b9/0xd20 [ 616.246103][ T1169] ? schedule+0x188/0x220 [ 616.251836][ T1169] ? schedule_timeout+0x43/0x250 [ 616.256895][ T1169] ? lockdep_hardirqs_on_prepare+0x445/0x6a0 [ 616.263234][ T1169] ? _raw_spin_unlock_irq+0x1f/0x80 [ 616.269499][ T1169] ? lockdep_hardirqs_on+0x79/0x100 [ 616.274832][ T1169] ? do_wait_for_common+0x232/0x370 [ 616.280160][ T1169] ? console_conditional_schedule+0x30/0x30 [ 616.286079][ T1169] ? wait_for_completion+0x43/0x50 [ 616.292428][ T1169] ? __cancel_work_timer+0x401/0x570 [ 616.297739][ T1169] ? start_flush_work+0x730/0x730 [ 616.303985][ T1169] ? tls_sk_proto_close+0xc6/0x870 [ 616.309901][ T1169] ? inet_release+0x16e/0x1f0 [ 616.314666][ T1169] ? sock_close+0xd8/0x260 [ 616.320166][ T1169] ? sock_mmap+0x90/0x90 [ 616.324566][ T1169] ? __fput+0x34f/0x7b0 [ 616.329646][ T1169] ? task_work_run+0x137/0x1c0 [ 616.334503][ T1169] ? exit_to_user_mode_prepare+0x11a/0x1e0 [ 616.341266][ T1169] ? syscall_exit_to_user_mode+0x82/0x1d0 [ 616.347005][ T1169] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 616.354016][ T1169] [ 616.354016][ T1169] Showing all locks held in the system: [ 616.363486][ T1169] 1 lock held by khungtaskd/1169: [ 616.369329][ T1169] #0: ffffffff894fe510 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 616.379354][ T1169] 1 lock held by in:imklog/6525: [ 616.384302][ T1169] #0: ffff88809cfd98f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x253/0x2f0 [ 616.394649][ T1169] 1 lock held by syz-executor531/6843: [ 616.400765][ T1169] #0: ffff8880850e8210 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: sock_close+0x94/0x260 [ 616.411580][ T1169] 3 locks held by kworker/0:1/6904: [ 616.416783][ T1169] #0: ffff8880aa463d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x6f4/0xfc0 [ 616.428327][ T1169] #1: ffffc90005447d80 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}-{0:0}, at: process_one_work+0x733/0xfc0 [ 616.441513][ T1169] #2: ffff8880978be8d8 (&ctx->tx_lock){+.+.}-{3:3}, at: tx_work_handler+0x111/0x150 [ 616.451159][ T1169] [ 616.453511][ T1169] ============================================= [ 616.453511][ T1169] [ 616.462460][ T1169] NMI backtrace for cpu 1 [ 616.466807][ T1169] CPU: 1 PID: 1169 Comm: khungtaskd Not tainted 5.9.0-rc3-syzkaller #0 [ 616.475033][ T1169] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 616.485084][ T1169] Call Trace: [ 616.488486][ T1169] dump_stack+0x1d6/0x29e [ 616.492846][ T1169] nmi_cpu_backtrace+0x9f/0x180 [ 616.497744][ T1169] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 616.503825][ T1169] nmi_trigger_cpumask_backtrace+0x16a/0x280 [ 616.509900][ T1169] watchdog+0xd65/0xdb0 [ 616.514160][ T1169] kthread+0x37e/0x3a0 [ 616.518279][ T1169] ? hungtask_pm_notify+0x50/0x50 [ 616.523295][ T1169] ? kthread_blkcg+0xd0/0xd0 [ 616.528087][ T1169] ret_from_fork+0x1f/0x30 [ 616.532707][ T1169] Sending NMI from CPU 1 to CPUs 0: [ 616.538634][ C0] NMI backtrace for cpu 0 [ 616.538639][ C0] CPU: 0 PID: 3901 Comm: systemd-journal Not tainted 5.9.0-rc3-syzkaller #0 [ 616.538643][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 616.538646][ C0] RIP: 0010:psi_task_change+0x1a7/0x350 [ 616.538653][ C0] Code: 89 48 39 c5 0f 84 a6 00 00 00 48 81 c5 38 01 00 00 eb 1b 41 80 3c 1f 00 48 8b 2c 24 74 08 48 89 ef e8 ed 16 5c 00 48 8b 6d 00 <48> 83 c5 78 48 89 e8 48 c1 e8 03 80 3c 18 00 74 08 48 89 ef e8 d0 [ 616.538656][ C0] RSP: 0018:ffffc90000007c08 EFLAGS: 00000046 [ 616.538663][ C0] RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: dffffc0000000000 [ 616.538667][ C0] RDX: 0000000000000004 RSI: 0000000000000106 RDI: ffff8880a8f34000 [ 616.538670][ C0] RBP: ffffffff89509840 R08: dffffc0000000000 R09: fffffbfff131e2ce [ 616.538674][ C0] R10: fffffbfff131e2ce R11: 0000000000000000 R12: 0000000000000001 [ 616.538678][ C0] R13: 0000000000000000 R14: ffff8880a8f35001 R15: 1ffff110151e6a2a [ 616.538681][ C0] FS: 00007ff3346158c0(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 616.538685][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 616.538688][ C0] CR2: 00007ff3319bb000 CR3: 000000009283f000 CR4: 00000000001506f0 [ 616.538692][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 616.538696][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 616.538698][ C0] Call Trace: [ 616.538700][ C0] [ 616.538703][ C0] activate_task+0x203/0x300 [ 616.538706][ C0] ? lock_is_held_type+0xb3/0xe0 [ 616.538709][ C0] try_to_wake_up+0x857/0xbb0 [ 616.538711][ C0] __queue_work+0x8b3/0xbb0 [ 616.538714][ C0] ? queue_work_node+0x330/0x330 [ 616.538717][ C0] call_timer_fn+0x91/0x160 [ 616.538720][ C0] ? queue_work_node+0x330/0x330 [ 616.538722][ C0] __run_timers+0x6ad/0x830 [ 616.538725][ C0] ? sched_clock+0x36/0x40 [ 616.538728][ C0] ? sched_clock_cpu+0x18/0x3b0 [ 616.538731][ C0] ? lock_is_held_type+0xb3/0xe0 [ 616.538733][ C0] run_timer_softirq+0x46/0x80 [ 616.538736][ C0] __do_softirq+0x256/0x6d5 [ 616.538739][ C0] ? asm_call_on_stack+0xf/0x20 [ 616.538742][ C0] asm_call_on_stack+0xf/0x20 [ 616.538744][ C0] [ 616.538747][ C0] do_softirq_own_stack+0x91/0xe0 [ 616.538749][ C0] __irq_exit_rcu+0x21f/0x230 [ 616.538752][ C0] irq_exit_rcu+0x5/0x20 [ 616.538755][ C0] sysvec_apic_timer_interrupt+0xd5/0xf0 [ 616.538758][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 616.538761][ C0] RIP: 0010:lock_acquire+0x195/0x6f0 [ 616.538768][ C0] Code: c1 e8 03 80 3c 18 00 74 0c 48 c7 c7 b8 17 4d 89 e8 30 d7 5a 00 48 83 3d c0 2e f3 07 00 0f 84 fc 04 00 00 48 8b 7c 24 08 57 9d <0f> 1f 44 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 48 0f 85 d3 [ 616.538771][ C0] RSP: 0018:ffffc90004b67e78 EFLAGS: 00000286 [ 616.538777][ C0] RAX: 1ffffffff129a2f7 RBX: dffffc0000000000 RCX: e668264dc84383e6 [ 616.538780][ C0] RDX: dffffc0000000000 RSI: ffff8880a9542b28 RDI: 0000000000000286 [ 616.538784][ C0] RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff167d899 [ 616.538788][ C0] R10: fffffbfff167d899 R11: 0000000000000000 R12: ffff8880a9542b24 [ 616.538792][ C0] R13: 0000000000000000 R14: ffffffff894fe510 R15: 1ffff110152a8564 [ 616.538794][ C0] ? lock_is_held_type+0xb3/0xe0 [ 616.538797][ C0] rcu_lock_acquire+0x2a/0x30 [ 616.538800][ C0] ? rcu_lock_acquire+0x5/0x30 [ 616.538803][ C0] __task_pid_nr_ns+0x27/0x3a0 [ 616.538806][ C0] __do_sys_getpid+0x1a/0x20 [ 616.538808][ C0] do_syscall_64+0x31/0x70 [ 616.538812][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 616.538814][ C0] RIP: 0033:0x7ff3338aef17 [ 616.538821][ C0] Code: ff ff ff 48 8b 4d a0 0f b7 51 fe 48 8b 4d a8 66 89 54 08 fe e9 1a ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 b8 27 00 00 00 0f 05 0f 1f 84 00 00 00 00 00 b8 6e 00 00 00 0f 05 c3 0f 1f 84 00 00 [ 616.538824][ C0] RSP: 002b:00007ffd3d173368 EFLAGS: 00000202 ORIG_RAX: 0000000000000027 [ 616.538831][ C0] RAX: ffffffffffffffda RBX: 00005593993801e0 RCX: 00007ff3338aef17 [ 616.538834][ C0] RDX: 00000000ffffffff RSI: 00007ffd3d1733f0 RDI: 00005593993801e0 [ 616.538838][ C0] RBP: 0000000000000f3d R08: 00007ffd3d1a0080 R09: 0000000000000000 [ 616.538841][ C0] R10: 00007ffd3d1a00a8 R11: 0000000000000202 R12: 00007ffd3d1733f0 [ 616.538845][ C0] R13: 00007ffd3d1733e8 R14: 0000559397b50958 R15: 0005aea16ea7bed6 [ 616.539899][ T1169] Kernel panic - not syncing: hung_task: blocked tasks [ 616.961100][ T1169] CPU: 1 PID: 1169 Comm: khungtaskd Not tainted 5.9.0-rc3-syzkaller #0 [ 616.969344][ T1169] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 616.979392][ T1169] Call Trace: [ 616.982673][ T1169] dump_stack+0x1d6/0x29e [ 616.987058][ T1169] panic+0x2c0/0x800 [ 616.990944][ T1169] ? nmi_trigger_cpumask_backtrace+0x206/0x280 [ 616.997102][ T1169] watchdog+0xda5/0xdb0 [ 617.001247][ T1169] kthread+0x37e/0x3a0 [ 617.005297][ T1169] ? hungtask_pm_notify+0x50/0x50 [ 617.010305][ T1169] ? kthread_blkcg+0xd0/0xd0 [ 617.014893][ T1169] ret_from_fork+0x1f/0x30 [ 617.020680][ T1169] Kernel Offset: disabled [ 617.025025][ T1169] Rebooting in 86400 seconds..