[ 44.681511][ T26] audit: type=1800 audit(1555532948.969:26): pid=7817 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 44.712344][ T26] audit: type=1800 audit(1555532948.969:27): pid=7817 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 44.732970][ T26] audit: type=1800 audit(1555532948.979:28): pid=7817 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. [ 45.383087][ T26] audit: type=1800 audit(1555532949.709:29): pid=7817 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.27' (ECDSA) to the list of known hosts. syzkaller login: [ 66.766443][ T7969] IPVS: ftp: loaded support on port[0] = 21 [ 66.820070][ T7969] chnl_net:caif_netlink_parms(): no params data found [ 66.853210][ T7969] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.860864][ T7969] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.869100][ T7969] device bridge_slave_0 entered promiscuous mode [ 66.877619][ T7969] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.884913][ T7969] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.892815][ T7969] device bridge_slave_1 entered promiscuous mode [ 66.910127][ T7969] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 66.920413][ T7969] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 66.938870][ T7969] team0: Port device team_slave_0 added [ 66.946343][ T7969] team0: Port device team_slave_1 added [ 67.013326][ T7969] device hsr_slave_0 entered promiscuous mode [ 67.062715][ T7969] device hsr_slave_1 entered promiscuous mode [ 67.138837][ T7969] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.146105][ T7969] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.153833][ T7969] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.160973][ T7969] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.196194][ T7969] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.207278][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.228204][ T22] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.236630][ T22] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.245810][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 67.257157][ T7969] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.267337][ T2832] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.276129][ T2832] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.283402][ T2832] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.303365][ T7971] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.311960][ T7971] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.319196][ T7971] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.327976][ T7971] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.336579][ T7971] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.346355][ T7971] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.356729][ T2832] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.368942][ T7969] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 67.380911][ T7969] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.391774][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready executing program [ 67.411250][ T7969] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.427931][ T7969] ------------[ cut here ]------------ [ 67.433561][ T7969] hsr_addr_subst_dest: Unknown node [ 67.439388][ T7969] WARNING: CPU: 0 PID: 7969 at net/hsr/hsr_framereg.c:313 hsr_addr_subst_dest+0x382/0x460 [ 67.449274][ T7969] Kernel panic - not syncing: panic_on_warn set ... [ 67.455867][ T7969] CPU: 0 PID: 7969 Comm: syz-executor837 Not tainted 5.1.0-rc5+ #74 [ 67.463844][ T7969] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.473912][ T7969] Call Trace: [ 67.477227][ T7969] dump_stack+0x172/0x1f0 [ 67.481674][ T7969] ? hsr_addr_subst_dest+0x320/0x460 [ 67.487016][ T7969] panic+0x2cb/0x65c [ 67.490931][ T7969] ? __warn_printk+0xf3/0xf3 [ 67.495532][ T7969] ? hsr_addr_subst_dest+0x382/0x460 [ 67.500826][ T7969] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.507232][ T7969] ? __warn.cold+0x5/0x45 [ 67.511564][ T7969] ? __warn+0xe8/0x1d0 [ 67.515629][ T7969] ? hsr_addr_subst_dest+0x382/0x460 [ 67.521066][ T7969] __warn.cold+0x20/0x45 [ 67.525311][ T7969] ? vprintk_emit+0x1ce/0x6d0 [ 67.530325][ T7969] ? hsr_addr_subst_dest+0x382/0x460 [ 67.535639][ T7969] report_bug+0x263/0x2b0 [ 67.540026][ T7969] do_error_trap+0x11b/0x200 [ 67.544718][ T7969] do_invalid_op+0x37/0x50 [ 67.549155][ T7969] ? hsr_addr_subst_dest+0x382/0x460 [ 67.554498][ T7969] invalid_op+0x14/0x20 [ 67.558649][ T7969] RIP: 0010:hsr_addr_subst_dest+0x382/0x460 [ 67.564526][ T7969] 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 [ 67.584346][ T7969] RSP: 0018:ffff8880a81df5f0 EFLAGS: 00010282 [ 67.590408][ T7969] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 67.598371][ T7969] RDX: 0000000000000000 RSI: ffffffff815afcb6 RDI: ffffed101503beb0 [ 67.606335][ T7969] RBP: ffff8880a81df630 R08: ffff88808dc36000 R09: ffffed1015d03ef1 [ 67.614305][ T7969] R10: ffffed1015d03ef0 R11: ffff8880ae81f787 R12: ffff888099d2b920 [ 67.622272][ T7969] R13: 00000000aaaaaaaa R14: 0000000075daffbe R15: 000000000000aaaa [ 67.630258][ T7969] ? vprintk_func+0x86/0x189 [ 67.634854][ T7969] hsr_forward_skb+0x123c/0x1bd0 [ 67.639898][ T7969] hsr_dev_xmit+0x72/0xa0 [ 67.644539][ T7969] dev_hard_start_xmit+0x1b2/0x980 [ 67.649644][ T7969] __dev_queue_xmit+0x271d/0x3060 [ 67.654676][ T7969] ? __might_fault+0x12b/0x1e0 [ 67.659597][ T7969] ? find_held_lock+0x35/0x130 [ 67.664358][ T7969] ? netdev_pick_tx+0x300/0x300 [ 67.669198][ T7969] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 67.675451][ T7969] ? iov_iter_advance+0x295/0xf70 [ 67.680477][ T7969] dev_queue_xmit+0x18/0x20 [ 67.684967][ T7969] ? dev_queue_xmit+0x18/0x20 [ 67.689742][ T7969] pppoe_sendmsg+0x657/0x7e0 [ 67.694444][ T7969] ? ether_setup+0x2d0/0x2d0 [ 67.699323][ T7969] ? pppoe_getname+0x120/0x120 [ 67.704156][ T7969] ? apparmor_socket_sendmsg+0x2a/0x30 [ 67.709609][ T7969] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.715875][ T7969] ? security_socket_sendmsg+0x93/0xc0 [ 67.721320][ T7969] ? pppoe_getname+0x120/0x120 [ 67.726074][ T7969] sock_sendmsg+0xdd/0x130 [ 67.730488][ T7969] ___sys_sendmsg+0x3e2/0x930 [ 67.735163][ T7969] ? copy_msghdr_from_user+0x430/0x430 [ 67.740719][ T7969] ? __lock_acquire+0x548/0x3fb0 [ 67.745649][ T7969] ? mark_held_locks+0xf0/0xf0 [ 67.750416][ T7969] ? kasan_check_read+0x11/0x20 [ 67.755380][ T7969] ? __lock_acquire+0x242a/0x3fb0 [ 67.760536][ T7969] ? __might_fault+0x12b/0x1e0 [ 67.765332][ T7969] ? find_held_lock+0x35/0x130 [ 67.770192][ T7969] ? __might_fault+0x12b/0x1e0 [ 67.774960][ T7969] ? lock_downgrade+0x880/0x880 [ 67.779864][ T7969] ? ___might_sleep+0x163/0x280 [ 67.784840][ T7969] __sys_sendmmsg+0x1bf/0x4d0 [ 67.789521][ T7969] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 67.794540][ T7969] ? __sys_connect+0x12d/0x330 [ 67.799395][ T7969] ? __ia32_sys_accept+0xb0/0xb0 [ 67.804432][ T7969] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 67.809889][ T7969] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 67.815371][ T7969] ? do_syscall_64+0x26/0x610 [ 67.820042][ T7969] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 67.826098][ T7969] ? do_syscall_64+0x26/0x610 [ 67.830778][ T7969] __x64_sys_sendmmsg+0x9d/0x100 [ 67.835710][ T7969] do_syscall_64+0x103/0x610 [ 67.840287][ T7969] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 67.846160][ T7969] RIP: 0033:0x441929 [ 67.850038][ T7969] 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 [ 67.869819][ T7969] RSP: 002b:00007ffd123b0398 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 67.878230][ T7969] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441929 [ 67.886190][ T7969] RDX: 04000000000000eb RSI: 000000002000d180 RDI: 0000000000000003 [ 67.894151][ T7969] RBP: 00000000004a8fd0 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 67.902319][ T7969] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402e70 [ 67.910322][ T7969] R13: 0000000000402f00 R14: 0000000000000000 R15: 0000000000000000 [ 67.919417][ T7969] Kernel Offset: disabled [ 67.923814][ T7969] Rebooting in 86400 seconds..