[ 37.334297] audit: type=1800 audit(1551386335.361:27): pid=7553 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 37.365873] audit: type=1800 audit(1551386335.441:28): pid=7553 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 38.194724] audit: type=1800 audit(1551386336.271:29): pid=7553 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 38.213240] audit: type=1800 audit(1551386336.281:30): pid=7553 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.9' (ECDSA) to the list of known hosts. syzkaller login: [ 48.587005] IPVS: ftp: loaded support on port[0] = 21 [ 48.638591] chnl_net:caif_netlink_parms(): no params data found [ 48.664206] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.670864] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.677795] device bridge_slave_0 entered promiscuous mode [ 48.684751] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.691438] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.698909] device bridge_slave_1 entered promiscuous mode [ 48.712336] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 48.720739] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 48.735585] team0: Port device team_slave_0 added [ 48.741520] team0: Port device team_slave_1 added [ 48.789276] device hsr_slave_0 entered promiscuous mode [ 48.827925] device hsr_slave_1 entered promiscuous mode [ 48.904099] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.910587] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.917381] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.923763] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.948943] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.960883] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 48.969712] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.976964] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.985472] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 48.996542] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.005382] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 49.013082] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.019437] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.028454] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 49.036104] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.042473] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.055410] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 49.064138] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 49.073371] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 49.085559] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 49.096470] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network executing program [ 49.107302] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 49.115049] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 49.123269] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 49.137885] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 49.150784] kasan: CONFIG_KASAN_INLINE enabled [ 49.155468] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 49.162941] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 49.169166] CPU: 0 PID: 7707 Comm: syz-executor978 Not tainted 5.0.0-rc8+ #88 [ 49.176421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.185766] RIP: 0010:xfrmi_decode_session+0x15c/0x6c0 [ 49.191023] Code: 7c fc 08 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 2e 05 00 00 48 b8 00 00 00 00 00 fc ff df 4f 8b 64 fc 08 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 01 05 00 00 4d 8b 3c 24 e8 d1 41 5b fb e8 fc 7d [ 49.210088] RSP: 0018:ffff88808ae77018 EFLAGS: 00010246 [ 49.215434] RAX: dffffc0000000000 RBX: ffff888087fe4400 RCX: ffffffff86026003 [ 49.222806] RDX: 0000000000000000 RSI: ffffffff86026040 RDI: ffff88808912fd88 [ 49.230148] RBP: ffff88808ae77040 R08: ffff8880852a2480 R09: ffffed1015d05bd0 [ 49.237413] R10: ffffed1015d05bcf R11: ffff8880ae82de7b R12: 0000000000000000 [ 49.244676] R13: 0000000000000037 R14: ffff888087fe4410 R15: ffffffffffffffff [ 49.251929] FS: 00000000011d6880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 49.260140] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.266008] CR2: 0000000020200000 CR3: 0000000098591000 CR4: 00000000001406f0 [ 49.273260] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.280520] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.287878] Call Trace: [ 49.290457] __xfrm_policy_check+0x1f8/0x2730 [ 49.294981] ? kasan_check_read+0x11/0x20 [ 49.299116] ? find_held_lock+0x35/0x130 [ 49.303167] ? vti6_tnl_lookup+0x287/0x1020 [ 49.307469] ? __xfrm_route_forward+0x860/0x860 [ 49.312173] ? __lock_is_held+0xb6/0x140 [ 49.316223] ? check_preemption_disabled+0x48/0x290 [ 49.321221] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 49.326652] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.332228] ? vti6_tnl_lookup+0x69a/0x1020 [ 49.336539] ? vti6_init_net+0x820/0x820 [ 49.340581] ? check_preemption_disabled+0x48/0x290 [ 49.345578] vti6_rcv+0x51a/0x970 [ 49.349014] xfrm6_esp_rcv+0xd8/0x230 [ 49.352836] ip6_protocol_deliver_rcu+0x303/0x16c0 [ 49.357918] ? lock_acquire+0x16f/0x3f0 [ 49.361890] ? rcu_softirq_qs+0x10/0x20 [ 49.365890] ip6_input_finish+0x84/0x170 [ 49.369932] ip6_input+0xe4/0x3f0 [ 49.373478] ? ip6_input_finish+0x170/0x170 [ 49.377789] ? ip6_protocol_deliver_rcu+0x16c0/0x16c0 [ 49.382962] ? ipv6_chk_mcast_addr+0x2f2/0x6f0 [ 49.387525] ip6_mc_input+0x4aa/0xf30 [ 49.391305] ? ip6_input+0x3f0/0x3f0 [ 49.395002] ip6_rcv_finish+0x1e7/0x320 [ 49.398955] ipv6_rcv+0x10e/0x420 [ 49.402390] ? ip6_rcv_core.isra.0+0x1c00/0x1c00 [ 49.407144] ? ip6_rcv_finish_core.isra.0+0x590/0x590 [ 49.412334] ? ip6_rcv_core.isra.0+0x1c00/0x1c00 [ 49.417074] __netif_receive_skb_one_core+0x115/0x1a0 [ 49.422248] ? __netif_receive_skb_core+0x3010/0x3010 [ 49.427419] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.433005] ? check_preemption_disabled+0x48/0x290 [ 49.438012] ? lock_acquire+0x16f/0x3f0 [ 49.441971] __netif_receive_skb+0x2c/0x1c0 [ 49.446276] netif_receive_skb_internal+0x117/0x660 [ 49.451271] ? dev_cpu_dead+0x920/0x920 [ 49.455229] ? eth_gro_receive+0x890/0x890 [ 49.459445] napi_gro_frags+0xade/0xd10 [ 49.463400] tun_get_user+0x2c0e/0x3dd0 [ 49.467405] ? tun_build_skb.isra.0+0x1150/0x1150 [ 49.472235] ? tun_get+0x171/0x290 [ 49.475881] ? lock_downgrade+0x810/0x810 [ 49.480015] ? kasan_check_read+0x11/0x20 [ 49.484169] tun_chr_write_iter+0xbd/0x160 [ 49.488389] do_iter_readv_writev+0x5e0/0x8e0 [ 49.492871] ? vfs_dedupe_file_range+0x780/0x780 [ 49.497609] ? rw_copy_check_uvector+0x2a6/0x330 [ 49.502363] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 49.507882] ? rw_verify_area+0x118/0x360 [ 49.512011] do_iter_write+0x184/0x610 [ 49.515880] ? dup_iter+0x260/0x260 [ 49.519487] vfs_writev+0x1b3/0x2f0 [ 49.523108] ? vfs_iter_write+0xb0/0xb0 [ 49.527112] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.532660] ? __handle_mm_fault+0x7cd/0x3f20 [ 49.537168] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 49.541995] ? find_held_lock+0x35/0x130 [ 49.546041] ? __do_page_fault+0x610/0xd60 [ 49.550259] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.555773] ? __fget_light+0x1a9/0x230 [ 49.559732] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.565249] do_writev+0xf6/0x290 [ 49.568681] ? vfs_writev+0x2f0/0x2f0 [ 49.572526] ? do_syscall_64+0x26/0x610 [ 49.576490] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.581834] ? do_syscall_64+0x26/0x610 [ 49.585833] __x64_sys_writev+0x75/0xb0 [ 49.589795] do_syscall_64+0x103/0x610 [ 49.593663] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.598827] RIP: 0033:0x442000 [ 49.601999] Code: 05 48 3d 01 f0 ff ff 0f 83 3d 0f fc ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 3d 11 90 29 00 00 75 14 b8 14 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 14 0f fc ff c3 48 83 ec 08 e8 7a 2b 00 00 [ 49.620963] RSP: 002b:00007fff336c7a78 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 49.628653] RAX: ffffffffffffffda RBX: 00007fff336c7ac0 RCX: 0000000000442000 [ 49.635900] RDX: 0000000000000001 RSI: 00007fff336c7ac0 RDI: 00000000000000f0 [ 49.643269] RBP: 0000000000000003 R08: 000000000000bbff R09: 0000000000000000 [ 49.650534] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff336c7a90 [ 49.657803] R13: 0000000000403430 R14: 0000000000000000 R15: 0000000000000000 [ 49.665055] Modules linked in: [ 49.668303] ---[ end trace 2f6d256d30b01535 ]--- [ 49.673052] RIP: 0010:xfrmi_decode_session+0x15c/0x6c0 [ 49.678491] Code: 7c fc 08 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 2e 05 00 00 48 b8 00 00 00 00 00 fc ff df 4f 8b 64 fc 08 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 01 05 00 00 4d 8b 3c 24 e8 d1 41 5b fb e8 fc 7d [ 49.697522] RSP: 0018:ffff88808ae77018 EFLAGS: 00010246 [ 49.702922] RAX: dffffc0000000000 RBX: ffff888087fe4400 RCX: ffffffff86026003 [ 49.710193] RDX: 0000000000000000 RSI: ffffffff86026040 RDI: ffff88808912fd88 [ 49.717475] RBP: ffff88808ae77040 R08: ffff8880852a2480 R09: ffffed1015d05bd0 [ 49.724927] R10: ffffed1015d05bcf R11: ffff8880ae82de7b R12: 0000000000000000 [ 49.732207] R13: 0000000000000037 R14: ffff888087fe4410 R15: ffffffffffffffff [ 49.739600] FS: 00000000011d6880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 49.747868] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.753952] CR2: 0000000020200000 CR3: 0000000098591000 CR4: 00000000001406f0 [ 49.761260] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.768539] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.775795] Kernel panic - not syncing: Fatal exception in interrupt [ 49.783188] Kernel Offset: disabled [ 49.786809] Rebooting in 86400 seconds..