[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ 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 '10.128.0.77' (ECDSA) to the list of known hosts. 2020/10/11 05:06:28 parsed 1 programs 2020/10/11 05:06:28 executed programs: 0 syzkaller login: [ 34.092356] audit: type=1400 audit(1602392788.936:8): avc: denied { execmem } for pid=6378 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 35.218874] IPVS: ftp: loaded support on port[0] = 21 [ 35.310347] chnl_net:caif_netlink_parms(): no params data found [ 35.373483] bridge0: port 1(bridge_slave_0) entered blocking state [ 35.380174] bridge0: port 1(bridge_slave_0) entered disabled state [ 35.387837] device bridge_slave_0 entered promiscuous mode [ 35.394487] bridge0: port 2(bridge_slave_1) entered blocking state [ 35.401717] bridge0: port 2(bridge_slave_1) entered disabled state [ 35.408955] device bridge_slave_1 entered promiscuous mode [ 35.424635] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 35.433198] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 35.449972] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 35.457279] team0: Port device team_slave_0 added [ 35.463176] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 35.471004] team0: Port device team_slave_1 added [ 35.485466] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 35.491721] 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. [ 35.517607] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 35.528917] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 35.535138] 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. [ 35.561030] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 35.571742] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 35.579328] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 35.597179] device hsr_slave_0 entered promiscuous mode [ 35.602824] device hsr_slave_1 entered promiscuous mode [ 35.609157] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 35.616543] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 35.674787] bridge0: port 2(bridge_slave_1) entered blocking state [ 35.681174] bridge0: port 2(bridge_slave_1) entered forwarding state [ 35.687927] bridge0: port 1(bridge_slave_0) entered blocking state [ 35.694247] bridge0: port 1(bridge_slave_0) entered forwarding state [ 35.722715] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 35.729255] 8021q: adding VLAN 0 to HW filter on device bond0 [ 35.737838] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 35.745605] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 35.754102] bridge0: port 1(bridge_slave_0) entered disabled state [ 35.761439] bridge0: port 2(bridge_slave_1) entered disabled state [ 35.770424] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 35.777321] 8021q: adding VLAN 0 to HW filter on device team0 [ 35.785087] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 35.792780] bridge0: port 1(bridge_slave_0) entered blocking state [ 35.799154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 35.808598] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 35.816587] bridge0: port 2(bridge_slave_1) entered blocking state [ 35.822914] bridge0: port 2(bridge_slave_1) entered forwarding state [ 35.839985] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 35.850007] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 35.861213] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 35.870111] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 35.878030] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 35.885414] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 35.893441] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 35.904690] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 35.915232] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 35.921786] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 35.929065] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 35.935678] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 35.943226] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 35.985347] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 35.994472] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 36.020818] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 36.028391] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 36.034719] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 36.043752] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 36.051517] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 36.058638] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 36.067237] device veth0_vlan entered promiscuous mode [ 36.075263] device veth1_vlan entered promiscuous mode [ 36.082587] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 36.090983] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 36.101878] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 36.110788] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 36.118234] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 36.125295] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 36.134335] device veth0_macvtap entered promiscuous mode [ 36.140814] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 36.149036] device veth1_macvtap entered promiscuous mode [ 36.158058] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 36.167467] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 36.177775] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 36.184353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 36.192624] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 36.202614] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 36.209666] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 36.300852] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 36.310502] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 36.329739] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 36.346301] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 36.353332] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 36.360019] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 36.376081] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 36.383190] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 36.392075] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 36.755958] kasan: CONFIG_KASAN_INLINE enabled [ 36.755965] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 36.755973] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 36.774108] Modules linked in: [ 36.774118] CPU: 0 PID: 6379 Comm: syz-executor.0 Not tainted 4.14.198-syzkaller #0 [ 36.774122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.774124] task: ffff888096f98340 task.stack: ffff888097168000 [ 36.774133] RIP: 0010:do_syscall_64+0x73/0x640 [ 36.774136] RSP: 0018:ffff88809716ff00 EFLAGS: 00010082 [ 36.774139] RAX: dffffc0000000000 RBX: 00000000000000e4 RCX: 0000000000000000 [ 36.774142] RDX: 1ffffffff0fa2d23 RSI: 0000000000000001 RDI: ffff888096f98bc4 [ 36.774144] RBP: ffff88809716ff58 R08: 0000000000000000 R09: 0000000000000000 [ 36.774146] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff87d16918 [ 36.774148] R13: ffff88809716ffd0 R14: ffff888096f98340 R15: 0000000000000000 [ 36.774152] FS: 00000000035b8940(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 [ 36.774154] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.774156] CR2: 00000000004ec430 CR3: 00000000a3ff4000 CR4: 00000000001406f0 [ 36.774161] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.774163] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.774164] Call Trace: [ 36.774173] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 36.774176] RIP: 0033:0x460cba [ 36.774178] RSP: 002b:00007fffeaefd3f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e4 [ 36.774182] RAX: ffffffffffffffda RBX: 0000000000008f9a RCX: 0000000000460cba [ 36.774184] RDX: 0000000000000000 RSI: 00007fffeaefd400 RDI: 0000000000000001 [ 36.774186] RBP: 000000000000000b R08: 0000000000000000 R09: 00000000035b8940 [ 36.774188] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 36.774190] R13: 00007fffeaefd460 R14: 0000000000008f68 R15: 00007fffeaefd470 [ 36.774194] Code: 34 8c 46 00 4c 89 e2 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 52 04 00 00 48 83 3d 19 fb d0 06 00 0f 70 07 00 <00> 00 e8 06 29 5b 00 fb 66 0f 1f 44 00 00 48 b8 00 00 00 00 00 [ 36.774268] RIP: do_syscall_64+0x73/0x640 RSP: ffff88809716ff00 [ 36.774279] ---[ end trace d77d60aff5988704 ]--- [ 36.774282] Kernel panic - not syncing: Fatal exception [ 36.774296] BUG: unable to handle kernel paging request at 00000000008012e6 [ 36.774307] IP: pvclock_gtod_notify+0x166/0x2f0 [ 36.774310] PGD 89df9067 P4D 89df9067 PUD 8eb87067 PMD 0 [ 36.774321] Oops: 0002 [#2] PREEMPT SMP KASAN [ 36.774323] Modules linked in: [ 36.774330] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G D 4.14.198-syzkaller #0 [ 36.774333] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.774337] task: ffff8880a98c6340 task.stack: ffff8880a98d0000 [ 36.774342] RIP: 0010:pvclock_gtod_notify+0x166/0x2f0 [ 36.774345] RSP: 0018:ffff8880aeb07c78 EFLAGS: 00010803 [ 36.774350] RAX: 00000000008012e6 RBX: ffffffff8a5aaac0 RCX: 0000000000000000 [ 36.774354] RDX: 1ffffffff14b555b RSI: 0000000000000000 RDI: ffffffff8a5aaadc [ 36.774357] RBP: 000000086bb113a1 R08: 0000000000000001 R09: 0000000000000001 [ 36.774360] R10: ffff88821fff7057 R11: ffff8880a98c6340 R12: ffffffff87d16260 [ 36.774363] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff87cb49a0 [ 36.774368] FS: 0000000000000000(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 36.774371] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.774374] CR2: 00000000008012e6 CR3: 0000000094af5000 CR4: 00000000001406e0 [ 36.774380] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.774383] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.774385] Call Trace: [ 36.774388] [ 36.774395] notifier_call_chain+0x108/0x1a0 [ 36.774404] timekeeping_update+0x23c/0x3a0 [ 36.774411] update_wall_time+0x5b0/0xa20 [ 36.774418] ? tick_do_update_jiffies64.part.0+0x172/0x270 [ 36.774425] ? read_boot_clock64+0x60/0x60 [ 36.774432] ? lock_downgrade+0x740/0x740 [ 36.774440] tick_do_update_jiffies64.part.0+0x172/0x270 [ 36.774447] tick_sched_timer+0x1a0/0x200 [ 36.774453] __hrtimer_run_queues+0x30b/0xc80 [ 36.774460] ? tick_do_update_jiffies64.part.0+0x270/0x270 [ 36.774466] ? retrigger_next_event+0x310/0x310 [ 36.774472] ? ktime_get_update_offsets_now+0x272/0x3f0 [ 36.774479] hrtimer_interrupt+0x1e6/0x5e0 [ 36.774489] smp_apic_timer_interrupt+0x117/0x5e0 [ 36.774496] apic_timer_interrupt+0x93/0xa0 [ 36.774498] [ 36.774505] RIP: 0010:native_safe_halt+0xe/0x10 [ 36.774507] RSP: 0018:ffff8880a98d7ea8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10 [ 36.774513] RAX: 1ffffffff0fa2d24 RBX: dffffc0000000000 RCX: 1ffffffff1027c74 [ 36.774516] RDX: dffffc0000000000 RSI: ffffffff86e462c0 RDI: ffffffff865578a5 [ 36.774520] RBP: ffffffff87d16910 R08: 0000000000000000 R09: ffffffff8151fe7d [ 36.774523] R10: 0000000000000000 R11: ffff8880a98c6340 R12: ffffed1015318c68 [ 36.774526] R13: ffff8880a98c6340 R14: 0000000000000000 R15: 0000000000000000 [ 36.774533] ? tick_nohz_idle_enter+0xfd/0x1b0 [ 36.774540] ? default_idle+0x15/0x370 [ 36.774547] default_idle+0x47/0x370 [ 36.774553] do_idle+0x250/0x3c0 [ 36.774559] cpu_startup_entry+0x14/0x20 [ 36.774566] start_secondary+0x488/0x5f0 [ 36.774573] secondary_startup_64+0xa5/0xb0 [ 36.774579] Code: 00 00 fc ff df 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 2e 01 00 00 8b 43 18 48 8d 7b 1c 48 89 fa 48 c1 ea 03 89 05 00 00 00 00 e6 12 <80> 00 00 00 00 fc ff df 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 [ 36.774690] RIP: pvclock_gtod_notify+0x166/0x2f0 RSP: ffff8880aeb07c78 [ 36.774692] CR2: 00000000008012e6 [ 36.774695] ---[ end trace d77d60aff5988705 ]--- [ 37.925812] Shutting down cpus with NMI [ 37.927014] Kernel Offset: disabled [ 38.452350] Rebooting in 86400 seconds..