[ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.110' (ECDSA) to the list of known hosts. syzkaller login: [ 320.443081][ T6808] IPVS: ftp: loaded support on port[0] = 21 [ 320.521067][ T6808] chnl_net:caif_netlink_parms(): no params data found [ 320.571441][ T6808] bridge0: port 1(bridge_slave_0) entered blocking state [ 320.580058][ T6808] bridge0: port 1(bridge_slave_0) entered disabled state [ 320.589246][ T6808] device bridge_slave_0 entered promiscuous mode [ 320.598598][ T6808] bridge0: port 2(bridge_slave_1) entered blocking state [ 320.606968][ T6808] bridge0: port 2(bridge_slave_1) entered disabled state [ 320.615451][ T6808] device bridge_slave_1 entered promiscuous mode [ 320.637273][ T6808] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 320.648575][ T6808] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 320.671357][ T6808] team0: Port device team_slave_0 added [ 320.678978][ T6808] team0: Port device team_slave_1 added [ 320.697101][ T6808] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 320.704223][ T6808] 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. [ 320.731224][ T6808] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 320.745007][ T6808] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 320.752996][ T6808] 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. [ 320.779868][ T6808] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 320.845278][ T6808] device hsr_slave_0 entered promiscuous mode [ 320.902223][ T6808] device hsr_slave_1 entered promiscuous mode [ 321.042881][ T6808] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 321.074683][ T6808] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 321.124890][ T6808] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 321.204925][ T6808] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 321.275625][ T6808] bridge0: port 2(bridge_slave_1) entered blocking state [ 321.282817][ T6808] bridge0: port 2(bridge_slave_1) entered forwarding state [ 321.290519][ T6808] bridge0: port 1(bridge_slave_0) entered blocking state [ 321.297727][ T6808] bridge0: port 1(bridge_slave_0) entered forwarding state [ 321.336074][ T6808] 8021q: adding VLAN 0 to HW filter on device bond0 [ 321.349263][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 321.360162][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 321.368682][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 321.376833][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 321.389892][ T6808] 8021q: adding VLAN 0 to HW filter on device team0 [ 321.401553][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 321.410917][ T23] bridge0: port 1(bridge_slave_0) entered blocking state [ 321.418455][ T23] bridge0: port 1(bridge_slave_0) entered forwarding state [ 321.433255][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 321.442863][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 321.450257][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 321.474726][ T2705] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 321.484322][ T2705] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 321.493861][ T2705] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 321.503150][ T2705] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 321.511569][ T2705] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 321.531857][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 321.539688][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 321.551214][ T6808] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 321.574245][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 321.584273][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 321.602022][ T2705] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 321.611188][ T2705] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 321.623382][ T6808] device veth0_vlan entered promiscuous mode [ 321.632946][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 321.642624][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 321.652755][ T6808] device veth1_vlan entered promiscuous mode [ 321.672525][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 321.681233][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 321.690170][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 321.699352][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 321.710383][ T6808] device veth0_macvtap entered promiscuous mode [ 321.721198][ T6808] device veth1_macvtap entered promiscuous mode [ 321.736878][ T6808] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 321.745046][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 321.753979][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 321.762580][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 321.771301][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 321.783525][ T6808] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 321.793176][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 321.802414][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 426.977796][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 426.984909][ C1] rcu: 0-...0: (1 GPs behind) idle=53a/1/0x4000000000000000 softirq=8107/8108 fqs=5249 [ 426.994855][ C1] (detected by 1, t=10502 jiffies, g=6213, q=4090) [ 427.001423][ C1] Sending NMI from CPU 1 to CPUs 0: [ 427.007705][ C1] NMI backtrace for cpu 0 [ 427.007710][ C1] CPU: 0 PID: 6808 Comm: syz-executor372 Not tainted 5.8.0-rc3-syzkaller #0 [ 427.007715][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 427.007718][ C1] RIP: 0010:rcu_lockdep_current_cpu_online+0x91/0xe0 [ 427.007733][ C1] Code: 00 48 8d b8 d8 66 03 00 48 89 f8 48 c1 e8 03 42 80 3c 38 00 74 05 e8 3e ce 51 00 4c 8b 73 18 48 83 c3 20 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 20 ce 51 00 48 8b 1b 49 83 c6 70 [ 427.007736][ C1] RSP: 0018:ffffc90000007d60 EFLAGS: 00000802 [ 427.007743][ C1] RAX: 1ffff11015d06cdc RBX: ffff8880ae8366e0 RCX: 0000000080010002 [ 427.007747][ C1] RDX: ffff88808975c380 RSI: 0000000000010003 RDI: ffff8880ae8366d8 [ 427.007750][ C1] RBP: ffff8880ae8275c4 R08: ffffffff816536fe R09: fffffbfff12da576 [ 427.007754][ C1] R10: fffffbfff12da576 R11: 0000000000000000 R12: ffff888092104340 [ 427.007758][ C1] R13: 1ffff11015d04ed2 R14: ffffffff892ea480 R15: dffffc0000000000 [ 427.007762][ C1] FS: 0000000001357880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 427.007766][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 427.007770][ C1] CR2: 0000000020000610 CR3: 00000000a729f000 CR4: 00000000001406f0 [ 427.007774][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 427.007778][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 427.007780][ C1] Call Trace: [ 427.007782][ C1] [ 427.007785][ C1] rcu_read_lock_sched_held+0x1a/0xa0 [ 427.007788][ C1] trace_hrtimer_expire_entry+0x22e/0x2d0 [ 427.007791][ C1] ? taprio_free_sched_cb+0x1d0/0x1d0 [ 427.007794][ C1] __hrtimer_run_queues+0x3ef/0x930 [ 427.007797][ C1] hrtimer_interrupt+0x373/0xd60 [ 427.007800][ C1] __sysvec_apic_timer_interrupt+0xf0/0x260 [ 427.007802][ C1] asm_call_on_stack+0xf/0x20 [ 427.007804][ C1] [ 427.007807][ C1] sysvec_apic_timer_interrupt+0xb9/0x130 [ 427.007811][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 427.007813][ C1] RIP: 0010:on_each_cpu+0x187/0x1f0 [ 427.007821][ C1] Code: c1 e8 03 42 80 3c 20 00 74 0c 48 c7 c7 f0 c7 2b 89 e8 7d eb 49 00 48 83 3d 65 38 c2 07 00 74 6a e8 7e ec 0a 00 48 89 df 57 9d <0f> 1f 44 00 00 bf 01 00 00 00 e8 5a fa e6 ff 65 8b 1d 5f 6e 98 7e [ 427.007824][ C1] RSP: 0018:ffffc90001477e38 EFLAGS: 00000282 [ 427.007830][ C1] RAX: ffffffff81698f92 RBX: 0000000000000282 RCX: ffff88808975c380 [ 427.007834][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000282 [ 427.007838][ C1] RBP: ffffffff81669716 R08: ffffffff817a1d20 R09: ffffed1015d04eb1 [ 427.007842][ C1] R10: ffffed1015d04eb1 R11: 0000000000000000 R12: dffffc0000000000 [ 427.007846][ C1] R13: 0000000000000282 R14: 0000000000000000 R15: ffffffff8164b430 [ 427.007848][ C1] ? clock_was_set+0x20/0x20 [ 427.007851][ C1] ? __x64_sys_clock_settime+0x196/0x1c0 [ 427.007854][ C1] ? trace_hardirqs_on+0x30/0x80 [ 427.007857][ C1] ? on_each_cpu+0x182/0x1f0 [ 427.007859][ C1] clock_was_set+0x18/0x20 [ 427.007862][ C1] do_settimeofday64+0x41e/0x520 [ 427.007865][ C1] ? __x64_sys_clock_settime+0x196/0x1c0 [ 427.007868][ C1] __x64_sys_clock_settime+0x196/0x1c0 [ 427.007871][ C1] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 427.007874][ C1] do_syscall_64+0x73/0xe0 [ 427.007877][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 427.007879][ C1] RIP: 0033:0x443849 [ 427.007882][ C1] Code: Bad RIP value. [ 427.007885][ C1] RSP: 002b:00007ffd76186228 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3 [ 427.007892][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443849 [ 427.007895][ C1] RDX: 0000000000443849 RSI: 0000000020000400 RDI: 0000000000000000 [ 427.007899][ C1] RBP: 00007ffd76186230 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 427.007903][ C1] R10: 0000000001bbbbbb R11: 0000000000000246 R12: 00007ffd76186240 [ 427.007907][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000