[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.23' (ECDSA) to the list of known hosts. syzkaller login: [ 350.488297][ T28] audit: type=1400 audit(1594230095.054:8): avc: denied { execmem } for pid=6959 comm="syz-executor260" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 350.509977][ T6960] IPVS: ftp: loaded support on port[0] = 21 [ 350.608704][ T6960] chnl_net:caif_netlink_parms(): no params data found [ 350.660995][ T6960] bridge0: port 1(bridge_slave_0) entered blocking state [ 350.669987][ T6960] bridge0: port 1(bridge_slave_0) entered disabled state [ 350.677830][ T6960] device bridge_slave_0 entered promiscuous mode [ 350.688687][ T6960] bridge0: port 2(bridge_slave_1) entered blocking state [ 350.697688][ T6960] bridge0: port 2(bridge_slave_1) entered disabled state [ 350.706316][ T6960] device bridge_slave_1 entered promiscuous mode [ 350.727957][ T6960] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 350.740984][ T6960] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 350.764941][ T6960] team0: Port device team_slave_0 added [ 350.772869][ T6960] team0: Port device team_slave_1 added [ 350.791899][ T6960] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 350.799596][ T6960] 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. [ 350.829299][ T6960] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 350.842590][ T6960] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 350.850891][ T6960] 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. [ 350.879838][ T6960] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 350.942810][ T6960] device hsr_slave_0 entered promiscuous mode [ 350.990038][ T6960] device hsr_slave_1 entered promiscuous mode [ 351.142346][ T6960] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 351.182252][ T6960] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 351.261423][ T6960] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 351.312604][ T6960] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 351.395456][ T6960] bridge0: port 2(bridge_slave_1) entered blocking state [ 351.403385][ T6960] bridge0: port 2(bridge_slave_1) entered forwarding state [ 351.411667][ T6960] bridge0: port 1(bridge_slave_0) entered blocking state [ 351.419303][ T6960] bridge0: port 1(bridge_slave_0) entered forwarding state [ 351.468137][ T6960] 8021q: adding VLAN 0 to HW filter on device bond0 [ 351.485296][ T2622] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 351.497002][ T2622] bridge0: port 1(bridge_slave_0) entered disabled state [ 351.506361][ T2622] bridge0: port 2(bridge_slave_1) entered disabled state [ 351.515836][ T2622] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 351.528931][ T6960] 8021q: adding VLAN 0 to HW filter on device team0 [ 351.541868][ T2480] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 351.552238][ T2480] bridge0: port 1(bridge_slave_0) entered blocking state [ 351.559944][ T2480] bridge0: port 1(bridge_slave_0) entered forwarding state [ 351.580115][ T2480] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 351.588856][ T2480] bridge0: port 2(bridge_slave_1) entered blocking state [ 351.596060][ T2480] bridge0: port 2(bridge_slave_1) entered forwarding state [ 351.618635][ T6960] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 351.630202][ T6960] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 351.643664][ T7087] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 351.653116][ T7087] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 351.661729][ T7087] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 351.670598][ T7087] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 351.678922][ T7087] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 351.687447][ T7087] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 351.696511][ T7087] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 351.705183][ T7087] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 351.713658][ T7087] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 351.722381][ T7087] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 351.740042][ T2622] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 351.747522][ T2622] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 351.763207][ T6960] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 351.783365][ T2622] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 351.793190][ T2622] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 351.816775][ T6960] device veth0_vlan entered promiscuous mode [ 351.824242][ T7168] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 351.833124][ T7168] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 351.842800][ T7168] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 351.851569][ T7168] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 351.864257][ T6960] device veth1_vlan entered promiscuous mode [ 351.886140][ T7087] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 351.894890][ T7087] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 351.905088][ T7087] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 351.914745][ T7087] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 351.926939][ T6960] device veth0_macvtap entered promiscuous mode [ 351.937360][ T6960] device veth1_macvtap entered promiscuous mode [ 351.955707][ T6960] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 351.963313][ T7168] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 351.972808][ T7168] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 351.981283][ T7168] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 351.992875][ T7168] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 352.004974][ T6960] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 352.013802][ T2622] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 352.023283][ T2622] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 381.621204][ T0] NOHZ: local_softirq_pending 08 [ 402.100578][ T0] NOHZ: local_softirq_pending 08 [ 422.580471][ T0] NOHZ: local_softirq_pending 08 [ 443.060465][ T0] NOHZ: local_softirq_pending 08 [ 457.208831][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 457.215937][ C1] rcu: 0-...0: (0 ticks this GP) idle=19a/1/0x4000000000000000 softirq=9303/9303 fqs=5250 [ 457.226283][ C1] (detected by 1, t=10502 jiffies, g=10465, q=4135) [ 457.232965][ C1] Sending NMI from CPU 1 to CPUs 0: [ 457.239338][ C1] NMI backtrace for cpu 0 [ 457.239346][ C1] CPU: 0 PID: 6960 Comm: syz-executor260 Not tainted 5.8.0-rc3-syzkaller #0 [ 457.239353][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 457.239358][ C1] RIP: 0010:__hrtimer_run_queues+0x357/0xfc0 [ 457.239370][ C1] Code: 4d 8b 75 50 4d 85 f6 0f 84 e9 08 00 00 e8 71 b0 0f 00 48 8b 9c 24 a8 00 00 00 e8 64 b0 0f 00 49 8d 7e 20 48 89 f8 48 c1 e8 03 <42> 80 3c 38 00 0f 85 be 0a 00 00 49 8b 6e 20 48 89 de 48 89 ef e8 [ 457.239375][ C1] RSP: 0018:ffffc90000007de8 EFLAGS: 00000806 [ 457.239384][ C1] RAX: 1ffff11014480f6c RBX: 1bc16d674ec8a703 RCX: ffffffff83af66b4 [ 457.239390][ C1] RDX: ffff8880a336a340 RSI: ffffffff816406fc RDI: ffff8880a2407b60 [ 457.239396][ C1] RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8aae594f [ 457.239402][ C1] R10: ffff8880a2407b40 R11: 0000000000000000 R12: ffff8880ae627740 [ 457.239408][ C1] R13: ffff8880ae627840 R14: ffff8880a2407b40 R15: dffffc0000000000 [ 457.239414][ C1] FS: 000000000192f880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 457.239419][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 457.239425][ C1] CR2: 0000000020000610 CR3: 000000008c59c000 CR4: 00000000001406f0 [ 457.239431][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 457.239437][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 457.239440][ C1] Call Trace: [ 457.239443][ C1] [ 457.239448][ C1] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 457.239453][ C1] ? ktime_get_update_offsets_now+0x1c4/0x250 [ 457.239457][ C1] hrtimer_interrupt+0x32a/0x930 [ 457.239462][ C1] __sysvec_apic_timer_interrupt+0x142/0x5e0 [ 457.239466][ C1] asm_call_on_stack+0xf/0x20 [ 457.239469][ C1] [ 457.239473][ C1] sysvec_apic_timer_interrupt+0xe0/0x120 [ 457.239478][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 457.239482][ C1] RIP: 0010:on_each_cpu+0x149/0x240 [ 457.239495][ C1] Code: 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 e6 00 00 00 48 83 3d 57 12 4c 08 00 0f 84 af 00 00 00 e8 6c e9 0a 00 48 89 df 57 9d <0f> 1f 44 00 00 e8 5d e9 0a 00 bf 01 00 00 00 e8 83 a4 e6 ff 31 ff [ 457.239499][ C1] RSP: 0018:ffffc90001697d70 EFLAGS: 00000293 [ 457.239515][ C1] RAX: 0000000000000000 RBX: 0000000000000293 RCX: 0000000000000000 [ 457.239521][ C1] RDX: ffff8880a336a340 RSI: ffffffff8168cdf4 RDI: 0000000000000293 [ 457.239527][ C1] RBP: 0000000000000200 R08: 0000000000000000 R09: 0000000000000000 [ 457.239532][ C1] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ 457.239538][ C1] R13: 0000000000000000 R14: ffffc90001697ed0 R15: ffffffffa0f9fc0f [ 457.239542][ C1] ? on_each_cpu+0x144/0x240 [ 457.239546][ C1] clock_was_set+0x18/0x20 [ 457.239551][ C1] do_settimeofday64+0x350/0x4e0 [ 457.239555][ C1] ? cap_capable+0x1eb/0x250 [ 457.239559][ C1] ? change_clocksource+0x200/0x200 [ 457.239563][ C1] ? capable+0xdd/0x100 [ 457.239567][ C1] do_sys_settimeofday64+0x1de/0x260 [ 457.239572][ C1] __x64_sys_clock_settime+0x197/0x260 [ 457.239576][ C1] ? exit_itimers+0x2d0/0x2d0 [ 457.239580][ C1] ? lock_is_held_type+0xb0/0xe0 [ 457.239584][ C1] ? do_syscall_64+0x1c/0xe0 [ 457.239589][ C1] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 457.239593][ C1] do_syscall_64+0x60/0xe0 [ 457.239598][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 457.239602][ C1] RIP: 0033:0x443859 [ 457.239605][ C1] Code: Bad RIP value. [ 457.239610][ C1] RSP: 002b:00007ffdac9b4378 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3 [ 457.239620][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443859 [ 457.239626][ C1] RDX: 0000000000443859 RSI: 0000000020000400 RDI: 0000000000000000 [ 457.239632][ C1] RBP: 00007ffdac9b4380 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 457.239638][ C1] R10: 0000000001bbbbbb R11: 0000000000000246 R12: 00007ffdac9b4390 [ 457.239644][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 463.540501][ T0] NOHZ: local_softirq_pending 08