[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 38.317476][ T27] audit: type=1800 audit(1555442845.867:25): pid=7700 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 38.354221][ T27] audit: type=1800 audit(1555442845.867:26): pid=7700 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 38.392234][ T27] audit: type=1800 audit(1555442845.867:27): pid=7700 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 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. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.37' (ECDSA) to the list of known hosts. syzkaller login: [ 63.405329][ T7852] IPVS: ftp: loaded support on port[0] = 21 [ 63.459653][ T7852] chnl_net:caif_netlink_parms(): no params data found [ 63.490679][ T7852] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.498515][ T7852] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.506830][ T7852] device bridge_slave_0 entered promiscuous mode [ 63.514910][ T7852] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.521982][ T7852] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.530131][ T7852] device bridge_slave_1 entered promiscuous mode [ 63.545530][ T7852] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 63.555062][ T7852] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 63.572295][ T7852] team0: Port device team_slave_0 added [ 63.579628][ T7852] team0: Port device team_slave_1 added [ 63.635908][ T7852] device hsr_slave_0 entered promiscuous mode [ 63.673846][ T7852] device hsr_slave_1 entered promiscuous mode [ 63.730655][ T7852] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.737973][ T7852] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.745781][ T7852] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.753080][ T7852] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.783255][ T7852] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.797740][ T7854] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.807889][ T7854] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.817140][ T7854] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.826009][ T7854] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 63.838136][ T7852] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.848152][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.856886][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.864141][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.874639][ T7854] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.882918][ T7854] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.890032][ T7854] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.906435][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.915836][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.930332][ T7852] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 63.941065][ T7852] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.955452][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.964084][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.972418][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.980733][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready executing program [ 63.997645][ T7852] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 64.053626][ T7852] kasan: CONFIG_KASAN_INLINE enabled [ 64.059087][ T7852] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 64.067215][ T7852] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 64.074149][ T7852] CPU: 1 PID: 7852 Comm: syz-executor153 Not tainted 5.1.0-rc5+ #70 [ 64.082100][ T7852] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.092175][ T7852] RIP: 0010:xfrmi_decode_session+0x15c/0x6c0 [ 64.098140][ T7852] 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 01 94 51 fb e8 9c e7 [ 64.117760][ T7852] RSP: 0018:ffff88809c717130 EFLAGS: 00010246 [ 64.123807][ T7852] RAX: dffffc0000000000 RBX: ffff88808f084940 RCX: ffffffff860ca3f3 [ 64.131759][ T7852] RDX: 0000000000000000 RSI: ffffffff860ca430 RDI: ffff88808f362c08 [ 64.139799][ T7852] RBP: ffff88809c717158 R08: ffff888094752380 R09: ffffed1015d25bc8 [ 64.147750][ T7852] R10: ffffed1015d25bc7 R11: ffff8880ae92de3b R12: 0000000000000000 [ 64.155789][ T7852] R13: 0000000000000035 R14: ffff88808f084950 R15: ffffffffffffffff [ 64.163745][ T7852] FS: 0000000001175880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 64.172658][ T7852] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.179228][ T7852] CR2: 0000000020000110 CR3: 000000009fd7f000 CR4: 00000000001406e0 [ 64.187216][ T7852] Call Trace: [ 64.190493][ T7852] __xfrm_policy_check+0x1f8/0x2730 [ 64.195678][ T7852] ? lock_downgrade+0x880/0x880 [ 64.200510][ T7852] ? kasan_check_read+0x11/0x20 [ 64.205344][ T7852] ? __xfrm_route_forward+0x840/0x840 [ 64.210698][ T7852] ? vti_input+0x217/0x7b0 [ 64.215106][ T7852] ? find_held_lock+0x35/0x130 [ 64.219852][ T7852] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 64.226239][ T7852] ? ip_tunnel_lookup+0xa0f/0xe00 [ 64.231248][ T7852] vti_input+0x4e3/0x7b0 [ 64.235511][ T7852] vti_rcv+0x10b/0x140 [ 64.239564][ T7852] xfrm4_esp_rcv+0xd8/0x240 [ 64.244051][ T7852] ip_protocol_deliver_rcu+0x60/0x8f0 [ 64.249410][ T7852] ? kasan_check_read+0x11/0x20 [ 64.254278][ T7852] ? rcu_dynticks_curr_cpu_in_eqs+0x54/0xb0 [ 64.260247][ T7852] ip_local_deliver_finish+0x23b/0x390 [ 64.265688][ T7852] ip_local_deliver+0x1e9/0x520 [ 64.270514][ T7852] ? ip_local_deliver_finish+0x390/0x390 [ 64.276131][ T7852] ? ip_protocol_deliver_rcu+0x8f0/0x8f0 [ 64.281742][ T7852] ? ip_rcv_finish_core.isra.0+0x7ff/0x1b70 [ 64.287617][ T7852] ip_rcv_finish+0x1e1/0x300 [ 64.292228][ T7852] ip_rcv+0xe8/0x3f0 [ 64.296110][ T7852] ? ip_local_deliver+0x520/0x520 [ 64.301164][ T7852] ? ip_rcv_finish_core.isra.0+0x1b70/0x1b70 [ 64.307567][ T7852] ? mark_held_locks+0xf0/0xf0 [ 64.312365][ T7852] ? ip_local_deliver+0x520/0x520 [ 64.317373][ T7852] __netif_receive_skb_one_core+0x115/0x1a0 [ 64.323241][ T7852] ? __netif_receive_skb_core+0x3040/0x3040 [ 64.329161][ T7852] ? lock_acquire+0x16f/0x3f0 [ 64.333826][ T7852] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 64.340046][ T7852] __netif_receive_skb+0x2c/0x1c0 [ 64.345053][ T7852] netif_receive_skb_internal+0x117/0x660 [ 64.350757][ T7852] ? dev_cpu_dead+0x920/0x920 [ 64.355416][ T7852] ? eth_gro_receive+0x890/0x890 [ 64.360377][ T7852] napi_gro_frags+0xade/0xd10 [ 64.365041][ T7852] tun_get_user+0x2f24/0x3fb0 [ 64.369709][ T7852] ? tun_build_skb.isra.0+0x1300/0x1300 [ 64.375244][ T7852] ? tun_get+0x171/0x290 [ 64.379466][ T7852] ? lock_downgrade+0x880/0x880 [ 64.384293][ T7852] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 64.390519][ T7852] ? kasan_check_read+0x11/0x20 [ 64.395356][ T7852] tun_chr_write_iter+0xbd/0x156 [ 64.400315][ T7852] do_iter_readv_writev+0x5e1/0x8e0 [ 64.405515][ T7852] ? vfs_dedupe_file_range+0x780/0x780 [ 64.410963][ T7852] ? rw_copy_check_uvector+0x2a6/0x330 [ 64.416409][ T7852] ? rw_verify_area+0x118/0x360 [ 64.421245][ T7852] do_iter_write+0x184/0x610 [ 64.425850][ T7852] ? dup_iter+0x260/0x260 [ 64.430168][ T7852] ? sock_ioctl+0x34b/0x610 [ 64.434654][ T7852] vfs_writev+0x1b3/0x2f0 [ 64.438970][ T7852] ? vfs_iter_write+0xb0/0xb0 [ 64.443635][ T7852] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 64.449897][ T7852] ? do_vfs_ioctl+0x120/0x1390 [ 64.454645][ T7852] ? ioctl_preallocate+0x210/0x210 [ 64.459736][ T7852] ? smack_file_ioctl+0x196/0x310 [ 64.464733][ T7852] ? smack_inode_rename+0x2d0/0x2d0 [ 64.470052][ T7852] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 64.476276][ T7852] ? __fget_light+0x1a9/0x230 [ 64.480933][ T7852] do_writev+0x15e/0x370 [ 64.485257][ T7852] ? vfs_writev+0x2f0/0x2f0 [ 64.489746][ T7852] ? do_syscall_64+0x26/0x610 [ 64.494410][ T7852] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 64.500459][ T7852] ? do_syscall_64+0x26/0x610 [ 64.505253][ T7852] __x64_sys_writev+0x75/0xb0 [ 64.510265][ T7852] do_syscall_64+0x103/0x610 [ 64.514879][ T7852] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 64.520754][ T7852] RIP: 0033:0x441ff0 [ 64.524629][ T7852] 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 21 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 [ 64.544304][ T7852] RSP: 002b:00007ffcbc83b3b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 64.552701][ T7852] RAX: ffffffffffffffda RBX: 00007ffcbc83b3f0 RCX: 0000000000441ff0 [ 64.560648][ T7852] RDX: 0000000000000001 RSI: 00007ffcbc83b3f0 RDI: 00000000000000f0 [ 64.568609][ T7852] RBP: 0000000000000003 R08: 00000000bb1414ac R09: 00000000bb1414ac [ 64.576558][ T7852] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcbc83b3c0 [ 64.584506][ T7852] R13: 0000000000403420 R14: 0000000000000000 R15: 0000000000000000 [ 64.592462][ T7852] Modules linked in: [ 64.596435][ T7852] ---[ end trace 9ee9eb0dfca58a58 ]--- [ 64.601895][ T7852] RIP: 0010:xfrmi_decode_session+0x15c/0x6c0 [ 64.607911][ T7852] 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 01 94 51 fb e8 9c e7 [ 64.627545][ T7852] RSP: 0018:ffff88809c717130 EFLAGS: 00010246 [ 64.633629][ T7852] RAX: dffffc0000000000 RBX: ffff88808f084940 RCX: ffffffff860ca3f3 [ 64.641605][ T7852] RDX: 0000000000000000 RSI: ffffffff860ca430 RDI: ffff88808f362c08 [ 64.649597][ T7852] RBP: ffff88809c717158 R08: ffff888094752380 R09: ffffed1015d25bc8 [ 64.657598][ T7852] R10: ffffed1015d25bc7 R11: ffff8880ae92de3b R12: 0000000000000000 [ 64.665748][ T7852] R13: 0000000000000035 R14: ffff88808f084950 R15: ffffffffffffffff [ 64.673749][ T7852] FS: 0000000001175880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 64.682668][ T7852] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.689408][ T7852] CR2: 0000000020000110 CR3: 000000009fd7f000 CR4: 00000000001406e0 [ 64.697421][ T7852] Kernel panic - not syncing: Fatal exception in interrupt [ 64.705276][ T7852] Kernel Offset: disabled [ 64.709590][ T7852] Rebooting in 86400 seconds..