[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 53.279547][ T27] audit: type=1800 audit(1559633681.103:25): pid=8302 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 53.301636][ T27] audit: type=1800 audit(1559633681.103:26): pid=8302 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 53.323189][ T27] audit: type=1800 audit(1559633681.103:27): pid=8302 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 '10.128.0.25' (ECDSA) to the list of known hosts. syzkaller login: [ 63.225807][ T8454] IPVS: ftp: loaded support on port[0] = 21 [ 63.276549][ T8454] chnl_net:caif_netlink_parms(): no params data found [ 63.301293][ T8454] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.309425][ T8454] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.317179][ T8454] device bridge_slave_0 entered promiscuous mode [ 63.325348][ T8454] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.332427][ T8454] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.340236][ T8454] device bridge_slave_1 entered promiscuous mode [ 63.356512][ T8454] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 63.366085][ T8454] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 63.382676][ T8454] team0: Port device team_slave_0 added [ 63.389915][ T8454] team0: Port device team_slave_1 added [ 63.435998][ T8454] device hsr_slave_0 entered promiscuous mode [ 63.494146][ T8454] device hsr_slave_1 entered promiscuous mode [ 63.562829][ T8454] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.570032][ T8454] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.577946][ T8454] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.585651][ T8454] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.618018][ T8454] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.630543][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.650539][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.667917][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.676204][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 63.688039][ T8454] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.698143][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.710882][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.718966][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.731065][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.739621][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.748043][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.763588][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.773212][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.784911][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.800375][ T8454] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network executing program [ 63.811914][ T8454] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.823756][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.832577][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.841319][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.858649][ T8454] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.889890][ T8454] ------------[ cut here ]------------ [ 63.895526][ T8454] hsr_addr_subst_dest: Unknown node [ 63.901060][ T8454] WARNING: CPU: 0 PID: 8454 at net/hsr/hsr_framereg.c:294 hsr_addr_subst_dest+0x382/0x460 [ 63.911203][ T8454] Kernel panic - not syncing: panic_on_warn set ... [ 63.918629][ T8454] CPU: 0 PID: 8454 Comm: syz-executor097 Not tainted 5.2.0-rc2+ #14 [ 63.927655][ T8454] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.943030][ T8454] Call Trace: [ 63.946515][ T8454] dump_stack+0x172/0x1f0 [ 63.950846][ T8454] ? hsr_addr_subst_dest+0x370/0x460 [ 63.956113][ T8454] panic+0x2cb/0x744 [ 63.959988][ T8454] ? __warn_printk+0xf3/0xf3 [ 63.964647][ T8454] ? hsr_addr_subst_dest+0x382/0x460 [ 63.970242][ T8454] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 63.976485][ T8454] ? __warn.cold+0x5/0x4d [ 63.980812][ T8454] ? __warn+0xe8/0x1d0 [ 63.984864][ T8454] ? hsr_addr_subst_dest+0x382/0x460 [ 63.990323][ T8454] __warn.cold+0x20/0x4d [ 63.994639][ T8454] ? vprintk_emit+0x1ea/0x700 [ 63.999299][ T8454] ? hsr_addr_subst_dest+0x382/0x460 [ 64.004579][ T8454] report_bug+0x263/0x2b0 [ 64.008903][ T8454] do_error_trap+0x11b/0x200 [ 64.013479][ T8454] do_invalid_op+0x37/0x50 [ 64.017891][ T8454] ? hsr_addr_subst_dest+0x382/0x460 [ 64.023180][ T8454] invalid_op+0x14/0x20 [ 64.027317][ T8454] RIP: 0010:hsr_addr_subst_dest+0x382/0x460 [ 64.033190][ T8454] Code: 89 de e8 11 51 5d fa 84 db 75 d3 e8 c8 4f 5d fa 48 c7 c6 20 ba 21 88 48 c7 c7 e0 b9 21 88 c6 05 72 8c 69 02 01 e8 dc 93 2f fa <0f> 0b eb b0 e8 a5 4f 5d fa 0f b6 1d 5e 8c 69 02 31 ff 89 de e8 d5 [ 64.053040][ T8454] RSP: 0018:ffff88808d6675e0 EFLAGS: 00010286 [ 64.059097][ T8454] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 64.067050][ T8454] RDX: 0000000000000000 RSI: ffffffff815ac7e6 RDI: ffffed1011acceae [ 64.074999][ T8454] RBP: ffff88808d667620 R08: ffff8880925c6140 R09: ffffed1015d040f1 [ 64.082950][ T8454] R10: ffffed1015d040f0 R11: ffff8880ae820787 R12: ffff8880942fb820 [ 64.090898][ T8454] R13: 00000000aaaaaaaa R14: 00000000d8be7fb5 R15: 00000000000024aa [ 64.098864][ T8454] ? vprintk_func+0x86/0x189 [ 64.103460][ T8454] hsr_forward_skb+0x138b/0x1d30 [ 64.108388][ T8454] hsr_dev_xmit+0x72/0xa0 [ 64.112698][ T8454] dev_hard_start_xmit+0x18a/0x950 [ 64.117794][ T8454] __dev_queue_xmit+0x2a8e/0x36b0 [ 64.122815][ T8454] ? __might_fault+0x12b/0x1e0 [ 64.127558][ T8454] ? find_held_lock+0x35/0x130 [ 64.132315][ T8454] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 64.137581][ T8454] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 64.143809][ T8454] ? iov_iter_advance+0x295/0xf70 [ 64.148966][ T8454] dev_queue_xmit+0x18/0x20 [ 64.153477][ T8454] ? dev_queue_xmit+0x18/0x20 [ 64.158138][ T8454] pppoe_sendmsg+0x654/0x7e0 [ 64.162816][ T8454] ? ether_setup+0x2d0/0x2d0 [ 64.167408][ T8454] ? pppoe_getname+0x120/0x120 [ 64.172152][ T8454] ? apparmor_socket_sendmsg+0x2a/0x30 [ 64.177588][ T8454] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 64.183815][ T8454] ? security_socket_sendmsg+0x8d/0xc0 [ 64.189271][ T8454] ? pppoe_getname+0x120/0x120 [ 64.194102][ T8454] sock_sendmsg+0xd7/0x130 [ 64.198497][ T8454] ___sys_sendmsg+0x3e2/0x920 [ 64.203157][ T8454] ? copy_msghdr_from_user+0x430/0x430 [ 64.208602][ T8454] ? mark_held_locks+0xf0/0xf0 [ 64.213346][ T8454] ? reacquire_held_locks+0xfa/0x520 [ 64.218616][ T8454] ? release_sock+0x156/0x1c0 [ 64.223271][ T8454] ? find_held_lock+0x35/0x130 [ 64.228037][ T8454] ? release_sock+0x156/0x1c0 [ 64.232702][ T8454] ? __local_bh_enable_ip+0x15a/0x270 [ 64.238054][ T8454] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 64.244301][ T8454] ? __fget_light+0x1a9/0x230 [ 64.248965][ T8454] ? __fdget+0x1b/0x20 [ 64.253015][ T8454] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 64.259245][ T8454] ? sockfd_lookup_light+0xcb/0x180 [ 64.264421][ T8454] __sys_sendmmsg+0x1bf/0x4d0 [ 64.269080][ T8454] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 64.274108][ T8454] ? __sys_connect+0x12d/0x330 [ 64.278852][ T8454] ? __ia32_sys_accept+0xb0/0xb0 [ 64.283772][ T8454] ? kasan_check_write+0x14/0x20 [ 64.288693][ T8454] ? up_read+0xc4/0x200 [ 64.292825][ T8454] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 64.298259][ T8454] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 64.303694][ T8454] ? do_syscall_64+0x26/0x680 [ 64.308348][ T8454] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 64.314389][ T8454] ? do_syscall_64+0x26/0x680 [ 64.319045][ T8454] __x64_sys_sendmmsg+0x9d/0x100 [ 64.323981][ T8454] do_syscall_64+0xfd/0x680 [ 64.328461][ T8454] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 64.334425][ T8454] RIP: 0033:0x441a39 [ 64.344203][ T8454] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 bb 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 64.364739][ T8454] RSP: 002b:00007ffea32a7968 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 64.373135][ T8454] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441a39 [ 64.381325][ T8454] RDX: 0000000000000003 RSI: 00000000200035c0 RDI: 0000000000000003 [ 64.389386][ T8454] RBP: 00000000004a90d0 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 64.397353][ T8454] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402f80 [ 64.405758][ T8454] R13: 0000000000403010 R14: 0000000000000000 R15: 0000000000000000 [ 64.415162][ T8454] Kernel Offset: disabled [ 64.419571][ T8454] Rebooting in 86400 seconds..