[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.142' (ECDSA) to the list of known hosts. syzkaller login: [ 514.396106][ T6822] IPVS: ftp: loaded support on port[0] = 21 [ 514.483207][ T6822] chnl_net:caif_netlink_parms(): no params data found [ 514.538669][ T6822] bridge0: port 1(bridge_slave_0) entered blocking state [ 514.546315][ T6822] bridge0: port 1(bridge_slave_0) entered disabled state [ 514.554978][ T6822] device bridge_slave_0 entered promiscuous mode [ 514.565693][ T6822] bridge0: port 2(bridge_slave_1) entered blocking state [ 514.573017][ T6822] bridge0: port 2(bridge_slave_1) entered disabled state [ 514.580865][ T6822] device bridge_slave_1 entered promiscuous mode [ 514.601719][ T6822] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 514.612880][ T6822] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 514.636659][ T6822] team0: Port device team_slave_0 added [ 514.644470][ T6822] team0: Port device team_slave_1 added [ 514.662724][ T6822] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 514.669926][ T6822] 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. [ 514.696068][ T6822] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 514.708714][ T6822] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 514.715675][ T6822] 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. [ 514.741697][ T6822] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 514.811348][ T6822] device hsr_slave_0 entered promiscuous mode [ 514.837960][ T6822] device hsr_slave_1 entered promiscuous mode [ 514.974689][ T6822] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 515.031820][ T6822] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 515.091241][ T6822] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 515.150992][ T6822] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 515.227912][ T6822] bridge0: port 2(bridge_slave_1) entered blocking state [ 515.235333][ T6822] bridge0: port 2(bridge_slave_1) entered forwarding state [ 515.243589][ T6822] bridge0: port 1(bridge_slave_0) entered blocking state [ 515.250792][ T6822] bridge0: port 1(bridge_slave_0) entered forwarding state [ 515.296089][ T6822] 8021q: adding VLAN 0 to HW filter on device bond0 [ 515.313393][ T2759] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 515.325697][ T2759] bridge0: port 1(bridge_slave_0) entered disabled state [ 515.335037][ T2759] bridge0: port 2(bridge_slave_1) entered disabled state [ 515.343449][ T2759] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 515.357224][ T6822] 8021q: adding VLAN 0 to HW filter on device team0 [ 515.369771][ T3411] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 515.378771][ T3411] bridge0: port 1(bridge_slave_0) entered blocking state [ 515.385835][ T3411] bridge0: port 1(bridge_slave_0) entered forwarding state [ 515.411122][ T7033] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 515.421180][ T7033] bridge0: port 2(bridge_slave_1) entered blocking state [ 515.428387][ T7033] bridge0: port 2(bridge_slave_1) entered forwarding state [ 515.439685][ T7033] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 515.459697][ T7033] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 515.468066][ T7033] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 515.476586][ T7033] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 515.485722][ T7033] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 515.496266][ T6822] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 515.518506][ T2759] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 515.526072][ T2759] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 515.544354][ T6822] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 515.563602][ T7033] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 515.573800][ T7033] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 515.595357][ T6822] device veth0_vlan entered promiscuous mode [ 515.607133][ T7034] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 515.616442][ T7034] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 515.626608][ T7034] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 515.635537][ T7034] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 515.648942][ T6822] device veth1_vlan entered promiscuous mode [ 515.673430][ T2759] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 515.681951][ T2759] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 515.690824][ T2759] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 515.699963][ T2759] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 515.713482][ T6822] device veth0_macvtap entered promiscuous mode [ 515.724468][ T6822] device veth1_macvtap entered promiscuous mode [ 515.743154][ T6822] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 515.751260][ T7034] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 515.760271][ T7034] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 515.768939][ T7034] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 515.779576][ T7034] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 515.792369][ T6822] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 515.800211][ T2759] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 515.809364][ T2759] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 621.007421][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 621.014579][ C0] rcu: 1-...0: (1 GPs behind) idle=af6/1/0x4000000000000000 softirq=10090/10091 fqs=5250 [ 621.025178][ C0] (detected by 0, t=10502 jiffies, g=9189, q=417) [ 621.031698][ C0] Sending NMI from CPU 0 to CPUs 1: [ 621.038070][ C0] NMI backtrace for cpu 1 [ 621.038077][ C0] CPU: 1 PID: 6822 Comm: syz-executor851 Not tainted 5.8.0-rc5-syzkaller #0 [ 621.038085][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 621.038089][ C0] RIP: 0010:enqueue_hrtimer+0x0/0x3f0 [ 621.038102][ C0] Code: ff ff 48 c7 c7 88 2c aa 8a e8 ec 2d 4f 00 e9 1e fe ff ff 48 c7 c7 88 2c aa 8a e8 db 2d 4f 00 e9 e9 fe ff ff 66 0f 1f 44 00 00 <41> 57 41 56 41 89 d6 41 55 41 54 49 89 fc 55 48 89 f5 53 e8 a8 c9 [ 621.038107][ C0] RSP: 0018:ffffc90000da8de0 EFLAGS: 00000046 [ 621.038117][ C0] RAX: 0000000080010002 RBX: 0000000000000000 RCX: ffffffff81640841 [ 621.038124][ C0] RDX: 0000000000000000 RSI: ffff8880ae727840 RDI: ffff8880945c9340 [ 621.038130][ C0] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000003 [ 621.038136][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880ae727740 [ 621.038142][ C0] R13: ffff8880ae727840 R14: ffff8880945c9340 R15: dffffc0000000000 [ 621.038149][ C0] FS: 0000000000b73880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 621.038154][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 621.038160][ C0] CR2: 0000000020000610 CR3: 000000009ea4a000 CR4: 00000000001406e0 [ 621.038166][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 621.038172][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 621.038176][ C0] Call Trace: [ 621.038179][ C0] [ 621.038183][ C0] __hrtimer_run_queues+0xc1e/0xfc0 [ 621.038188][ C0] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 621.038193][ C0] ? ktime_get_update_offsets_now+0x1c4/0x250 [ 621.038198][ C0] hrtimer_interrupt+0x32a/0x930 [ 621.038203][ C0] __sysvec_apic_timer_interrupt+0x142/0x5e0 [ 621.038207][ C0] asm_call_on_stack+0xf/0x20 [ 621.038210][ C0] [ 621.038215][ C0] sysvec_apic_timer_interrupt+0xe0/0x120 [ 621.038220][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 621.038224][ C0] RIP: 0010:on_each_cpu+0x149/0x240 [ 621.038237][ C0] Code: 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 e6 00 00 00 48 83 3d 97 10 4c 08 00 0f 84 af 00 00 00 e8 0c ea 0a 00 48 89 df 57 9d <0f> 1f 44 00 00 e8 fd e9 0a 00 bf 01 00 00 00 e8 83 a2 e6 ff 31 ff [ 621.038241][ C0] RSP: 0018:ffffc90000ea7d70 EFLAGS: 00000293 [ 621.038251][ C0] RAX: 0000000000000000 RBX: 0000000000000293 RCX: 0000000000000000 [ 621.038257][ C0] RDX: ffff8880909b21c0 RSI: ffffffff8168cff4 RDI: 0000000000000293 [ 621.038263][ C0] RBP: 0000000000000200 R08: 0000000000000000 R09: 0000000000000000 [ 621.038269][ C0] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ 621.038275][ C0] R13: 0000000000000000 R14: ffffc90000ea7ed0 R15: ffffffffa0f129a4 [ 621.038279][ C0] ? on_each_cpu+0x144/0x240 [ 621.038283][ C0] clock_was_set+0x18/0x20 [ 621.038287][ C0] do_settimeofday64+0x350/0x4e0 [ 621.038292][ C0] ? change_clocksource+0x200/0x200 [ 621.038296][ C0] ? capable+0xdd/0x100 [ 621.038300][ C0] do_sys_settimeofday64+0x1de/0x260 [ 621.038305][ C0] __x64_sys_clock_settime+0x197/0x260 [ 621.038309][ C0] ? exit_itimers+0x2d0/0x2d0 [ 621.038313][ C0] ? lock_is_held_type+0xb0/0xe0 [ 621.038318][ C0] ? do_syscall_64+0x1c/0xe0 [ 621.038323][ C0] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 621.038327][ C0] do_syscall_64+0x60/0xe0 [ 621.038331][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 621.038335][ C0] RIP: 0033:0x443849 [ 621.038339][ C0] Code: Bad RIP value. [ 621.038343][ C0] RSP: 002b:00007ffe1c611538 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3 [ 621.038354][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443849 [ 621.038360][ C0] RDX: 0000000000443849 RSI: 0000000020000400 RDI: 0000000000000000 [ 621.038366][ C0] RBP: 00007ffe1c611540 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 621.038372][ C0] R10: 0000000001bbbbbb R11: 0000000000000246 R12: 00007ffe1c611550 [ 621.038378][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000