[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 63.390582][ T26] audit: type=1800 audit(1561779345.237:25): pid=8478 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 63.430512][ T26] audit: type=1800 audit(1561779345.237:26): pid=8478 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 63.479517][ T26] audit: type=1800 audit(1561779345.237:27): pid=8478 uid=0 auid=4294967295 ses=4294967295 subj==unconfined 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 '10.128.0.171' (ECDSA) to the list of known hosts. 2019/06/29 03:36:02 parsed 1 programs 2019/06/29 03:36:04 executed programs: 0 syzkaller login: [ 82.811894][ T8645] IPVS: ftp: loaded support on port[0] = 21 [ 82.875825][ T8645] chnl_net:caif_netlink_parms(): no params data found [ 82.906428][ T8645] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.914680][ T8645] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.923662][ T8645] device bridge_slave_0 entered promiscuous mode [ 82.932494][ T8645] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.939753][ T8645] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.948192][ T8645] device bridge_slave_1 entered promiscuous mode [ 82.966648][ T8645] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 82.977541][ T8645] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 82.997222][ T8645] team0: Port device team_slave_0 added [ 83.004973][ T8645] team0: Port device team_slave_1 added [ 83.073099][ T8645] device hsr_slave_0 entered promiscuous mode [ 83.140726][ T8645] device hsr_slave_1 entered promiscuous mode [ 83.208540][ T8645] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.216034][ T8645] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.224538][ T8645] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.232061][ T8645] bridge0: port 1(bridge_slave_0) entered forwarding state [ 83.268305][ T8645] 8021q: adding VLAN 0 to HW filter on device bond0 [ 83.282086][ T2993] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 83.303445][ T2993] bridge0: port 1(bridge_slave_0) entered disabled state [ 83.312650][ T2993] bridge0: port 2(bridge_slave_1) entered disabled state [ 83.321413][ T2993] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 83.335208][ T8645] 8021q: adding VLAN 0 to HW filter on device team0 [ 83.345670][ T3486] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 83.354575][ T3486] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.362124][ T3486] bridge0: port 1(bridge_slave_0) entered forwarding state [ 83.381301][ T2993] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 83.389989][ T2993] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.397118][ T2993] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.405648][ T2993] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 83.415258][ T8647] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 83.426332][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 83.440047][ T8647] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 83.453536][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 83.463473][ T8645] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 83.483444][ T8645] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 83.612510][ T8657] ------------[ cut here ]------------ [ 83.618104][ T8657] hsr_addr_subst_dest: Unknown node [ 83.624463][ T8657] WARNING: CPU: 0 PID: 8657 at net/hsr/hsr_framereg.c:294 hsr_addr_subst_dest+0x382/0x460 [ 83.634591][ T8657] Kernel panic - not syncing: panic_on_warn set ... [ 83.641453][ T8657] CPU: 0 PID: 8657 Comm: syz-executor.0 Not tainted 5.2.0-rc6+ #48 [ 83.649428][ T8657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 83.659608][ T8657] Call Trace: [ 83.663421][ T8657] dump_stack+0x172/0x1f0 [ 83.667754][ T8657] ? hsr_addr_subst_dest+0x320/0x460 [ 83.673619][ T8657] panic+0x2cb/0x744 [ 83.677890][ T8657] ? __warn_printk+0xf3/0xf3 [ 83.682594][ T8657] ? hsr_addr_subst_dest+0x382/0x460 [ 83.687882][ T8657] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 83.694127][ T8657] ? __warn.cold+0x5/0x4d [ 83.698455][ T8657] ? __warn+0xe8/0x1d0 [ 83.702538][ T8657] ? hsr_addr_subst_dest+0x382/0x460 [ 83.707835][ T8657] __warn.cold+0x20/0x4d [ 83.712083][ T8657] ? vprintk_emit+0x1ea/0x700 [ 83.716937][ T8657] ? hsr_addr_subst_dest+0x382/0x460 [ 83.722232][ T8657] report_bug+0x263/0x2b0 [ 83.726838][ T8657] do_error_trap+0x11b/0x200 [ 83.731446][ T8657] do_invalid_op+0x37/0x50 [ 83.735865][ T8657] ? hsr_addr_subst_dest+0x382/0x460 [ 83.741651][ T8657] invalid_op+0x14/0x20 [ 83.745809][ T8657] RIP: 0010:hsr_addr_subst_dest+0x382/0x460 [ 83.751702][ T8657] Code: 89 de e8 61 1d 5a fa 84 db 75 d3 e8 18 1c 5a fa 48 c7 c6 00 ee 41 88 48 c7 c7 c0 ed 41 88 c6 05 36 78 86 02 01 e8 cc 53 2c fa <0f> 0b eb b0 e8 f5 1b 5a fa 0f b6 1d 22 78 86 02 31 ff 89 de e8 25 [ 83.772720][ T8657] RSP: 0018:ffff888093537470 EFLAGS: 00010286 [ 83.778784][ T8657] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 83.786908][ T8657] RDX: 0000000000000000 RSI: ffffffff815adb06 RDI: ffffed10126a6e80 [ 83.795365][ T8657] RBP: ffff8880935374b0 R08: ffff88808f3e8080 R09: 0000000000000000 [ 83.803350][ T8657] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888083614da0 [ 83.811864][ T8657] R13: 0000000000000000 R14: 0000000047eef7b7 R15: 0000000000005e6f [ 83.819991][ T8657] ? vprintk_func+0x86/0x189 [ 83.824587][ T8657] hsr_forward_skb+0x138b/0x1d30 [ 83.829679][ T8657] hsr_dev_xmit+0x72/0xa0 [ 83.834017][ T8657] dev_hard_start_xmit+0x18a/0x950 [ 83.839133][ T8657] __dev_queue_xmit+0x2a8e/0x36b0 [ 83.844180][ T8657] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 83.849472][ T8657] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 83.855465][ T8657] ? _copy_from_iter+0x240/0xbf0 [ 83.860696][ T8657] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 83.867526][ T8657] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 83.873784][ T8657] ? packet_parse_headers.isra.0+0x350/0x4a0 [ 83.879766][ T8657] ? packet_parse_headers.isra.0+0x12c/0x4a0 [ 83.885888][ T8657] ? packet_release+0xc60/0xc60 [ 83.891096][ T8657] dev_queue_xmit+0x18/0x20 [ 83.895795][ T8657] ? dev_queue_xmit+0x18/0x20 [ 83.900615][ T8657] packet_sendmsg+0x22d4/0x5f90 [ 83.916627][ T8657] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 83.922701][ T8657] ? rw_copy_check_uvector+0x2a6/0x330 [ 83.928380][ T8657] ? __might_sleep+0x10/0x190 [ 83.933061][ T8657] ? packet_notifier+0x840/0x840 [ 83.938499][ T8657] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 83.944490][ T8657] ? apparmor_socket_sendmsg+0x2a/0x30 [ 83.950209][ T8657] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 83.956763][ T8657] ? security_socket_sendmsg+0x8d/0xc0 [ 83.962991][ T8657] ? packet_notifier+0x840/0x840 [ 83.967932][ T8657] sock_sendmsg+0xd7/0x130 [ 83.973157][ T8657] ___sys_sendmsg+0x3e2/0x920 [ 83.978276][ T8657] ? copy_msghdr_from_user+0x430/0x430 [ 83.984264][ T8657] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 83.990745][ T8657] ? kasan_check_read+0x11/0x20 [ 83.995941][ T8657] ? __fget+0x381/0x550 [ 84.000250][ T8657] ? ksys_dup3+0x3e0/0x3e0 [ 84.004966][ T8657] ? __fget_light+0x1a9/0x230 [ 84.009737][ T8657] ? __fdget+0x1b/0x20 [ 84.013982][ T8657] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 84.020508][ T8657] ? sockfd_lookup_light+0xcb/0x180 [ 84.026728][ T8657] __sys_sendmmsg+0x1bf/0x4d0 [ 84.032031][ T8657] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 84.037287][ T8657] ? _copy_to_user+0xc9/0x120 [ 84.041967][ T8657] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 84.048609][ T8657] ? put_timespec64+0xda/0x140 [ 84.053759][ T8657] ? nsecs_to_jiffies+0x30/0x30 [ 84.058910][ T8657] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 84.064376][ T8657] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 84.069944][ T8657] ? do_syscall_64+0x26/0x680 [ 84.075074][ T8657] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 84.081379][ T8657] ? do_syscall_64+0x26/0x680 [ 84.086484][ T8657] __x64_sys_sendmmsg+0x9d/0x100 [ 84.091561][ T8657] do_syscall_64+0xfd/0x680 [ 84.096456][ T8657] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 84.102466][ T8657] RIP: 0033:0x459519 [ 84.106637][ T8657] Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 84.127407][ T8657] RSP: 002b:00007f8ed5afbc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 84.136842][ T8657] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000459519 [ 84.145616][ T8657] RDX: 0000000000000001 RSI: 0000000020004e80 RDI: 0000000000000003 [ 84.154341][ T8657] RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 [ 84.162313][ T8657] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8ed5afc6d4 [ 84.170282][ T8657] R13: 00000000004c6af9 R14: 00000000004dbd80 R15: 00000000ffffffff [ 84.180204][ T8657] Kernel Offset: disabled [ 84.184962][ T8657] Rebooting in 86400 seconds..