[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 55.421062][ T27] audit: type=1800 audit(1559730735.427:25): pid=8486 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 55.466570][ T27] audit: type=1800 audit(1559730735.427:26): pid=8486 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 55.511049][ T27] audit: type=1800 audit(1559730735.427:27): pid=8486 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 '10.128.0.206' (ECDSA) to the list of known hosts. syzkaller login: [ 67.360558][ T8643] IPVS: ftp: loaded support on port[0] = 21 [ 67.414996][ T8643] chnl_net:caif_netlink_parms(): no params data found [ 67.441201][ T8643] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.449158][ T8643] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.457051][ T8643] device bridge_slave_0 entered promiscuous mode [ 67.464709][ T8643] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.471889][ T8643] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.479891][ T8643] device bridge_slave_1 entered promiscuous mode [ 67.495288][ T8643] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 67.505288][ T8643] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 67.522106][ T8643] team0: Port device team_slave_0 added [ 67.529221][ T8643] team0: Port device team_slave_1 added [ 67.588870][ T8643] device hsr_slave_0 entered promiscuous mode [ 67.646800][ T8643] device hsr_slave_1 entered promiscuous mode [ 67.714242][ T8643] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.721415][ T8643] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.729143][ T8643] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.736852][ T8643] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.771064][ T8643] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.782145][ T2601] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.791900][ T2601] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.799976][ T2601] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.808040][ T2601] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 67.819326][ T8643] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.829995][ T3486] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.838505][ T3486] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.845642][ T3486] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.857483][ T2601] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.865739][ T2601] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.872832][ T2601] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.888060][ T3486] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.896886][ T3486] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.907759][ T2601] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.922242][ T8643] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 67.933061][ T8643] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 67.945282][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.954196][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready executing program [ 67.967998][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.980021][ T8643] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.013615][ T8643] ------------[ cut here ]------------ [ 68.019526][ T8643] hsr_addr_subst_dest: Unknown node [ 68.025064][ T8643] WARNING: CPU: 1 PID: 8643 at net/hsr/hsr_framereg.c:294 hsr_addr_subst_dest+0x382/0x460 [ 68.034932][ T8643] Kernel panic - not syncing: panic_on_warn set ... [ 68.041497][ T8643] CPU: 1 PID: 8643 Comm: syz-executor049 Not tainted 5.2.0-rc3+ #38 [ 68.049445][ T8643] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.059499][ T8643] Call Trace: [ 68.062772][ T8643] dump_stack+0x172/0x1f0 [ 68.067087][ T8643] ? hsr_addr_subst_dest+0x380/0x460 [ 68.072365][ T8643] panic+0x2cb/0x744 [ 68.076239][ T8643] ? __warn_printk+0xf3/0xf3 [ 68.080812][ T8643] ? hsr_addr_subst_dest+0x382/0x460 [ 68.086075][ T8643] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 68.092339][ T8643] ? __warn.cold+0x5/0x4d [ 68.096645][ T8643] ? __warn+0xe8/0x1d0 [ 68.100691][ T8643] ? hsr_addr_subst_dest+0x382/0x460 [ 68.105953][ T8643] __warn.cold+0x20/0x4d [ 68.110175][ T8643] ? vprintk_emit+0x1ea/0x700 [ 68.114835][ T8643] ? hsr_addr_subst_dest+0x382/0x460 [ 68.120100][ T8643] report_bug+0x263/0x2b0 [ 68.124429][ T8643] do_error_trap+0x11b/0x200 [ 68.128997][ T8643] do_invalid_op+0x37/0x50 [ 68.133391][ T8643] ? hsr_addr_subst_dest+0x382/0x460 [ 68.138665][ T8643] invalid_op+0x14/0x20 [ 68.142803][ T8643] RIP: 0010:hsr_addr_subst_dest+0x382/0x460 [ 68.148670][ T8643] Code: 89 de e8 11 89 5e fa 84 db 75 d3 e8 c8 87 5e fa 48 c7 c6 e0 95 21 88 48 c7 c7 a0 95 21 88 c6 05 26 a4 6a 02 01 e8 0c cb 30 fa <0f> 0b eb b0 e8 a5 87 5e fa 0f b6 1d 12 a4 6a 02 31 ff 89 de e8 d5 [ 68.168261][ T8643] RSP: 0018:ffff8880a7ed75e0 EFLAGS: 00010286 [ 68.174317][ T8643] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 68.182272][ T8643] RDX: 0000000000000000 RSI: ffffffff815ac936 RDI: ffffed1014fdaeae [ 68.190245][ T8643] RBP: ffff8880a7ed7620 R08: ffff88808fbc4340 R09: ffffed1015d240f1 [ 68.198196][ T8643] R10: ffffed1015d240f0 R11: ffff8880ae920787 R12: ffff8880a5d23060 [ 68.206167][ T8643] R13: 00000000aaaaaaaa R14: 00000000e83effdd R15: 00000000000024aa [ 68.214145][ T8643] ? vprintk_func+0x86/0x189 [ 68.218722][ T8643] hsr_forward_skb+0x138b/0x1d30 [ 68.223646][ T8643] hsr_dev_xmit+0x72/0xa0 [ 68.227956][ T8643] dev_hard_start_xmit+0x18a/0x950 [ 68.233065][ T8643] __dev_queue_xmit+0x2a8e/0x36b0 [ 68.238068][ T8643] ? __might_fault+0x12b/0x1e0 [ 68.242810][ T8643] ? find_held_lock+0x35/0x130 [ 68.247557][ T8643] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 68.252824][ T8643] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 68.259044][ T8643] ? iov_iter_advance+0x295/0xf70 [ 68.264051][ T8643] dev_queue_xmit+0x18/0x20 [ 68.268530][ T8643] ? dev_queue_xmit+0x18/0x20 [ 68.273186][ T8643] pppoe_sendmsg+0x654/0x7e0 [ 68.277769][ T8643] ? ether_setup+0x2d0/0x2d0 [ 68.282341][ T8643] ? pppoe_getname+0x120/0x120 [ 68.287088][ T8643] ? apparmor_socket_sendmsg+0x2a/0x30 [ 68.292531][ T8643] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 68.298746][ T8643] ? security_socket_sendmsg+0x8d/0xc0 [ 68.304184][ T8643] ? pppoe_getname+0x120/0x120 [ 68.308924][ T8643] sock_sendmsg+0xd7/0x130 [ 68.313319][ T8643] ___sys_sendmsg+0x3e2/0x920 [ 68.317974][ T8643] ? copy_msghdr_from_user+0x430/0x430 [ 68.323415][ T8643] ? mark_held_locks+0xf0/0xf0 [ 68.328158][ T8643] ? reacquire_held_locks+0xfa/0x520 [ 68.333420][ T8643] ? release_sock+0x156/0x1c0 [ 68.338076][ T8643] ? find_held_lock+0x35/0x130 [ 68.342817][ T8643] ? release_sock+0x156/0x1c0 [ 68.347479][ T8643] ? __local_bh_enable_ip+0x15a/0x270 [ 68.352830][ T8643] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 68.359046][ T8643] ? __fget_light+0x1a9/0x230 [ 68.363699][ T8643] ? __fdget+0x1b/0x20 [ 68.367746][ T8643] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 68.373976][ T8643] ? sockfd_lookup_light+0xcb/0x180 [ 68.379152][ T8643] __sys_sendmmsg+0x1bf/0x4d0 [ 68.383807][ T8643] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 68.388815][ T8643] ? __sys_connect+0x12d/0x330 [ 68.393553][ T8643] ? __ia32_sys_accept+0xb0/0xb0 [ 68.398474][ T8643] ? kasan_check_write+0x14/0x20 [ 68.403387][ T8643] ? up_read+0xc4/0x200 [ 68.407520][ T8643] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 68.412969][ T8643] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 68.418420][ T8643] ? do_syscall_64+0x26/0x680 [ 68.423090][ T8643] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 68.429132][ T8643] ? do_syscall_64+0x26/0x680 [ 68.433789][ T8643] __x64_sys_sendmmsg+0x9d/0x100 [ 68.438707][ T8643] do_syscall_64+0xfd/0x680 [ 68.443187][ T8643] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 68.449054][ T8643] RIP: 0033:0x441a39 [ 68.452926][ T8643] 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 [ 68.472504][ T8643] RSP: 002b:00007ffd2c2ea248 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 68.480904][ T8643] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441a39 [ 68.488855][ T8643] RDX: 0000000000000003 RSI: 00000000200035c0 RDI: 0000000000000003 [ 68.496803][ T8643] RBP: 00000000004a90d0 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 68.504753][ T8643] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402f80 [ 68.512701][ T8643] R13: 0000000000403010 R14: 0000000000000000 R15: 0000000000000000 [ 68.521744][ T8643] Kernel Offset: disabled [ 68.526113][ T8643] Rebooting in 86400 seconds..