[ 36.438405][ T26] audit: type=1800 audit(1555538293.352:27): pid=7441 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 36.479238][ T26] audit: type=1800 audit(1555538293.352:28): pid=7441 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. [ 37.197958][ T26] audit: type=1800 audit(1555538294.152:29): pid=7441 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 37.222382][ T26] audit: type=1800 audit(1555538294.152:30): pid=7441 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 '10.128.10.6' (ECDSA) to the list of known hosts. syzkaller login: [ 53.673050][ T7594] IPVS: ftp: loaded support on port[0] = 21 [ 53.722470][ T7594] chnl_net:caif_netlink_parms(): no params data found [ 53.753835][ T7594] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.761575][ T7594] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.769806][ T7594] device bridge_slave_0 entered promiscuous mode [ 53.778210][ T7594] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.785675][ T7594] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.793227][ T7594] device bridge_slave_1 entered promiscuous mode [ 53.810665][ T7594] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 53.820513][ T7594] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 53.837965][ T7594] team0: Port device team_slave_0 added [ 53.844752][ T7594] team0: Port device team_slave_1 added [ 53.916099][ T7594] device hsr_slave_0 entered promiscuous mode [ 53.984033][ T7594] device hsr_slave_1 entered promiscuous mode [ 54.040762][ T7594] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.048222][ T7594] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.056148][ T7594] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.063246][ T7594] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.091222][ T7594] 8021q: adding VLAN 0 to HW filter on device bond0 [ 54.104039][ T3480] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 54.124149][ T3480] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.132724][ T3480] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.141791][ T3480] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 54.153048][ T7594] 8021q: adding VLAN 0 to HW filter on device team0 [ 54.163458][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 54.172123][ T23] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.179322][ T23] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.195027][ T3480] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 54.209421][ T3480] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.220729][ T3480] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.237055][ T7594] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 54.247962][ T7594] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 54.260733][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 54.270014][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 54.278560][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 54.287145][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready executing program [ 54.295421][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 54.302903][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 54.318676][ T7594] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 54.330401][ T7594] ------------[ cut here ]------------ [ 54.336199][ T7594] hsr_addr_subst_dest: Unknown node [ 54.341745][ T7594] WARNING: CPU: 0 PID: 7594 at net/hsr/hsr_framereg.c:313 hsr_addr_subst_dest+0x382/0x460 [ 54.351619][ T7594] Kernel panic - not syncing: panic_on_warn set ... [ 54.358195][ T7594] CPU: 0 PID: 7594 Comm: syz-executor143 Not tainted 5.1.0-rc5+ #72 [ 54.366149][ T7594] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.376198][ T7594] Call Trace: [ 54.379497][ T7594] dump_stack+0x172/0x1f0 [ 54.383831][ T7594] ? hsr_addr_subst_dest+0x320/0x460 [ 54.389100][ T7594] panic+0x2cb/0x65c [ 54.393027][ T7594] ? __warn_printk+0xf3/0xf3 [ 54.397714][ T7594] ? hsr_addr_subst_dest+0x382/0x460 [ 54.402980][ T7594] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.409251][ T7594] ? __warn.cold+0x5/0x45 [ 54.413568][ T7594] ? __warn+0xe8/0x1d0 [ 54.417763][ T7594] ? hsr_addr_subst_dest+0x382/0x460 [ 54.423032][ T7594] __warn.cold+0x20/0x45 [ 54.427415][ T7594] ? vprintk_emit+0x1ce/0x6d0 [ 54.432080][ T7594] ? hsr_addr_subst_dest+0x382/0x460 [ 54.437432][ T7594] report_bug+0x263/0x2b0 [ 54.441766][ T7594] do_error_trap+0x11b/0x200 [ 54.446423][ T7594] do_invalid_op+0x37/0x50 [ 54.450832][ T7594] ? hsr_addr_subst_dest+0x382/0x460 [ 54.456164][ T7594] invalid_op+0x14/0x20 [ 54.460315][ T7594] RIP: 0010:hsr_addr_subst_dest+0x382/0x460 [ 54.466198][ T7594] Code: 89 de e8 b1 80 6a fa 84 db 75 d3 e8 68 7f 6a fa 48 c7 c6 e0 4d 19 88 48 c7 c7 a0 4d 19 88 c6 05 93 7a 54 02 01 e8 4c 2d 3d fa <0f> 0b eb b0 e8 45 7f 6a fa 0f b6 1d 7f 7a 54 02 31 ff 89 de e8 75 [ 54.485891][ T7594] RSP: 0018:ffff88808621f5f0 EFLAGS: 00010282 [ 54.492146][ T7594] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 54.500233][ T7594] RDX: 0000000000000000 RSI: ffffffff815afcb6 RDI: ffffed1010c43eb0 [ 54.508193][ T7594] RBP: ffff88808621f630 R08: ffff8880933946c0 R09: ffffed1015d05011 [ 54.516161][ T7594] R10: ffffed1015d05010 R11: ffff8880ae828087 R12: ffff88808f4cef60 [ 54.524113][ T7594] R13: 00000000aaaaaaaa R14: 00000000daa4ffdc R15: 000000000000aaaa [ 54.532091][ T7594] ? vprintk_func+0x86/0x189 [ 54.536673][ T7594] hsr_forward_skb+0x123c/0x1bd0 [ 54.541708][ T7594] hsr_dev_xmit+0x72/0xa0 [ 54.546038][ T7594] dev_hard_start_xmit+0x1b2/0x980 [ 54.551135][ T7594] __dev_queue_xmit+0x271d/0x3060 [ 54.556153][ T7594] ? __might_fault+0x12b/0x1e0 [ 54.560916][ T7594] ? find_held_lock+0x35/0x130 [ 54.565681][ T7594] ? netdev_pick_tx+0x300/0x300 [ 54.570529][ T7594] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.576763][ T7594] ? iov_iter_advance+0x295/0xf70 [ 54.581945][ T7594] dev_queue_xmit+0x18/0x20 [ 54.586454][ T7594] ? dev_queue_xmit+0x18/0x20 [ 54.591123][ T7594] pppoe_sendmsg+0x657/0x7e0 [ 54.595697][ T7594] ? ether_setup+0x2d0/0x2d0 [ 54.600284][ T7594] ? pppoe_getname+0x120/0x120 [ 54.605291][ T7594] ? tomoyo_socket_sendmsg+0x26/0x30 [ 54.610577][ T7594] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.616880][ T7594] ? security_socket_sendmsg+0x93/0xc0 [ 54.622413][ T7594] ? pppoe_getname+0x120/0x120 [ 54.627175][ T7594] sock_sendmsg+0xdd/0x130 [ 54.631736][ T7594] ___sys_sendmsg+0x3e2/0x930 [ 54.636512][ T7594] ? copy_msghdr_from_user+0x430/0x430 [ 54.641963][ T7594] ? __lock_acquire+0x548/0x3fb0 [ 54.646889][ T7594] ? mark_held_locks+0xf0/0xf0 [ 54.651640][ T7594] ? kasan_check_read+0x11/0x20 [ 54.656655][ T7594] ? __lock_acquire+0x242a/0x3fb0 [ 54.661677][ T7594] ? __might_fault+0x12b/0x1e0 [ 54.666434][ T7594] ? find_held_lock+0x35/0x130 [ 54.671191][ T7594] ? __might_fault+0x12b/0x1e0 [ 54.675955][ T7594] ? lock_downgrade+0x880/0x880 [ 54.680807][ T7594] ? ___might_sleep+0x163/0x280 [ 54.685648][ T7594] __sys_sendmmsg+0x1bf/0x4d0 [ 54.690331][ T7594] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 54.695443][ T7594] ? __sys_connect+0x12d/0x330 [ 54.700208][ T7594] ? __ia32_sys_accept+0xb0/0xb0 [ 54.705468][ T7594] ? kasan_check_write+0x14/0x20 [ 54.710490][ T7594] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 54.715940][ T7594] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 54.721615][ T7594] ? do_syscall_64+0x26/0x610 [ 54.726283][ T7594] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.732365][ T7594] ? do_syscall_64+0x26/0x610 [ 54.737057][ T7594] __x64_sys_sendmmsg+0x9d/0x100 [ 54.741979][ T7594] do_syscall_64+0x103/0x610 [ 54.746570][ T7594] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.752459][ T7594] RIP: 0033:0x441929 [ 54.756393][ T7594] 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 [ 54.776314][ T7594] RSP: 002b:00007fff4db0b548 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 54.784720][ T7594] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441929 [ 54.792694][ T7594] RDX: 04000000000000eb RSI: 000000002000d180 RDI: 0000000000000003 [ 54.800659][ T7594] RBP: 00000000004a8fd0 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 54.808624][ T7594] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402e70 [ 54.816586][ T7594] R13: 0000000000402f00 R14: 0000000000000000 R15: 0000000000000000 [ 54.825740][ T7594] Kernel Offset: disabled [ 54.830276][ T7594] Rebooting in 86400 seconds..