[ 36.925955][ T26] audit: type=1800 audit(1555532416.637:27): pid=7576 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 36.956811][ T26] audit: type=1800 audit(1555532416.647:28): pid=7576 uid=0 auid=4294967295 ses=4294967295 subj==unconfined 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. [ 37.710963][ T26] audit: type=1800 audit(1555532417.487:29): pid=7576 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 37.731528][ T26] audit: type=1800 audit(1555532417.487:30): pid=7576 uid=0 auid=4294967295 ses=4294967295 subj==unconfined 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 '10.128.0.90' (ECDSA) to the list of known hosts. syzkaller login: [ 63.802776][ T7729] IPVS: ftp: loaded support on port[0] = 21 [ 63.859917][ T7729] chnl_net:caif_netlink_parms(): no params data found [ 63.887718][ T7729] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.895674][ T7729] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.903571][ T7729] device bridge_slave_0 entered promiscuous mode [ 63.912502][ T7729] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.920182][ T7729] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.927995][ T7729] device bridge_slave_1 entered promiscuous mode [ 63.943825][ T7729] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 63.953568][ T7729] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 63.970324][ T7729] team0: Port device team_slave_0 added [ 63.977049][ T7729] team0: Port device team_slave_1 added [ 64.056303][ T7729] device hsr_slave_0 entered promiscuous mode [ 64.125049][ T7729] device hsr_slave_1 entered promiscuous mode [ 64.202067][ T7729] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.209341][ T7729] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.217278][ T7729] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.224343][ T7729] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.258183][ T7729] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.269419][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.291759][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.300234][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.309684][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 64.321143][ T7729] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.331162][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.339687][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.347049][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.366056][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.375314][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.382412][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.390837][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.399710][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.408572][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready executing program [ 64.419468][ T2989] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.431715][ T7731] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.440852][ T7729] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.457876][ T7729] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 64.470802][ T7729] ------------[ cut here ]------------ [ 64.476427][ T7729] hsr_addr_subst_dest: Unknown node [ 64.481997][ T7729] WARNING: CPU: 0 PID: 7729 at net/hsr/hsr_framereg.c:294 hsr_addr_subst_dest+0x382/0x460 [ 64.491877][ T7729] Kernel panic - not syncing: panic_on_warn set ... [ 64.498465][ T7729] CPU: 0 PID: 7729 Comm: syz-executor309 Not tainted 5.1.0-rc5-next-20190417 #27 [ 64.507647][ T7729] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.517837][ T7729] Call Trace: [ 64.521133][ T7729] dump_stack+0x172/0x1f0 [ 64.525475][ T7729] ? hsr_addr_subst_dest+0x300/0x460 [ 64.530990][ T7729] panic+0x2cb/0x72b [ 64.534882][ T7729] ? __warn_printk+0xf3/0xf3 [ 64.539660][ T7729] ? hsr_addr_subst_dest+0x382/0x460 [ 64.545033][ T7729] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 64.551406][ T7729] ? __warn.cold+0x5/0x46 [ 64.555743][ T7729] ? __warn+0xe8/0x1d0 [ 64.559810][ T7729] ? hsr_addr_subst_dest+0x382/0x460 [ 64.565102][ T7729] __warn.cold+0x20/0x46 [ 64.569395][ T7729] ? vprintk_emit+0x1ea/0x700 [ 64.574084][ T7729] ? hsr_addr_subst_dest+0x382/0x460 [ 64.579371][ T7729] report_bug+0x263/0x2b0 [ 64.583727][ T7729] do_error_trap+0x11b/0x200 [ 64.588319][ T7729] do_invalid_op+0x37/0x50 [ 64.592738][ T7729] ? hsr_addr_subst_dest+0x382/0x460 [ 64.598022][ T7729] invalid_op+0x14/0x20 [ 64.602178][ T7729] RIP: 0010:hsr_addr_subst_dest+0x382/0x460 [ 64.608075][ T7729] Code: 89 de e8 71 ac 5e fa 84 db 75 d3 e8 28 ab 5e fa 48 c7 c6 60 ec 1a 88 48 c7 c7 20 ec 1a 88 c6 05 6c e1 49 02 01 e8 6c 25 31 fa <0f> 0b eb b0 e8 05 ab 5e fa 0f b6 1d 58 e1 49 02 31 ff 89 de e8 35 [ 64.628900][ T7729] RSP: 0018:ffff8880933bf5e0 EFLAGS: 00010286 [ 64.635060][ T7729] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 64.643028][ T7729] RDX: 0000000000000000 RSI: ffffffff815b2ba6 RDI: ffffed1012677eae [ 64.651040][ T7729] RBP: ffff8880933bf620 R08: ffff8880a8f5a440 R09: ffffed1015d05019 [ 64.659150][ T7729] R10: ffffed1015d05018 R11: ffff8880ae8280c7 R12: ffff8880943776e0 [ 64.667489][ T7729] R13: 00000000aaaaaaaa R14: 00000000fdd2fbfe R15: 000000000000aaaa [ 64.675485][ T7729] ? vprintk_func+0x86/0x189 [ 64.680195][ T7729] hsr_forward_skb+0x138b/0x1d30 [ 64.685217][ T7729] hsr_dev_xmit+0x72/0xa0 [ 64.689551][ T7729] dev_hard_start_xmit+0x18f/0x960 [ 64.694747][ T7729] __dev_queue_xmit+0x2a9d/0x36c0 [ 64.699782][ T7729] ? __might_fault+0x12b/0x1e0 [ 64.704542][ T7729] ? find_held_lock+0x35/0x130 [ 64.709316][ T7729] ? netdev_core_pick_tx+0x300/0x300 [ 64.714648][ T7729] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 64.720891][ T7729] ? iov_iter_advance+0x295/0xf70 [ 64.725924][ T7729] dev_queue_xmit+0x18/0x20 [ 64.730435][ T7729] ? dev_queue_xmit+0x18/0x20 [ 64.735112][ T7729] pppoe_sendmsg+0x657/0x7e0 [ 64.739713][ T7729] ? ether_setup+0x2d0/0x2d0 [ 64.744388][ T7729] ? pppoe_getname+0x120/0x120 [ 64.749141][ T7729] ? apparmor_socket_sendmsg+0x2a/0x30 [ 64.754711][ T7729] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 64.760955][ T7729] ? security_socket_sendmsg+0x93/0xc0 [ 64.766418][ T7729] ? pppoe_getname+0x120/0x120 [ 64.771389][ T7729] sock_sendmsg+0xdd/0x130 [ 64.775805][ T7729] ___sys_sendmsg+0x3e2/0x930 [ 64.780571][ T7729] ? copy_msghdr_from_user+0x430/0x430 [ 64.786239][ T7729] ? __lock_acquire+0x548/0x3fb0 [ 64.791247][ T7729] ? mark_held_locks+0xf0/0xf0 [ 64.796012][ T7729] ? kasan_check_read+0x11/0x20 [ 64.800860][ T7729] ? __lock_acquire+0x242a/0x3fb0 [ 64.806018][ T7729] ? __might_fault+0x12b/0x1e0 [ 64.810893][ T7729] ? find_held_lock+0x35/0x130 [ 64.815756][ T7729] ? __might_fault+0x12b/0x1e0 [ 64.820672][ T7729] ? lock_downgrade+0x880/0x880 [ 64.825701][ T7729] ? ___might_sleep+0x163/0x280 [ 64.830866][ T7729] __sys_sendmmsg+0x1bf/0x4d0 [ 64.835690][ T7729] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 64.840737][ T7729] ? __sys_connect+0x12d/0x330 [ 64.845619][ T7729] ? __ia32_sys_accept+0xb0/0xb0 [ 64.850606][ T7729] ? kasan_check_write+0x14/0x20 [ 64.855546][ T7729] ? up_read+0x90/0x1c0 [ 64.859919][ T7729] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 64.865391][ T7729] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 64.870950][ T7729] ? do_syscall_64+0x26/0x670 [ 64.875684][ T7729] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 64.881759][ T7729] ? do_syscall_64+0x26/0x670 [ 64.886435][ T7729] __x64_sys_sendmmsg+0x9d/0x100 [ 64.891465][ T7729] do_syscall_64+0x103/0x670 [ 64.896057][ T7729] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 64.904114][ T7729] RIP: 0033:0x441929 [ 64.908021][ T7729] 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 [ 64.928294][ T7729] RSP: 002b:00007ffef23fbbe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 64.936747][ T7729] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441929 [ 64.944929][ T7729] RDX: 04000000000000eb RSI: 000000002000d180 RDI: 0000000000000003 [ 64.952963][ T7729] RBP: 00000000004a8fd0 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 64.961136][ T7729] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402e70 [ 64.969137][ T7729] R13: 0000000000402f00 R14: 0000000000000000 R15: 0000000000000000 [ 64.978566][ T7729] Kernel Offset: disabled [ 64.983107][ T7729] Rebooting in 86400 seconds..