[ 37.883893] audit: type=1800 audit(1571818970.178:31): pid=7403 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0 Starting mcstransd: [....] Starting periodic command[ 38.266280] audit: type=1800 audit(1571818970.598:32): pid=7403 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2450 res=0 scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?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 '10.128.0.188' (ECDSA) to the list of known hosts. syzkaller login: [ 47.633713] kauditd_printk_skb: 3 callbacks suppressed [ 47.633729] audit: type=1400 audit(1571818979.968:36): avc: denied { map } for pid=7589 comm="syz-executor817" path="/root/syz-executor817517114" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 47.651346] IPVS: ftp: loaded support on port[0] = 21 [ 47.719976] chnl_net:caif_netlink_parms(): no params data found [ 47.752235] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.759632] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.767186] device bridge_slave_0 entered promiscuous mode [ 47.774656] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.781589] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.789151] device bridge_slave_1 entered promiscuous mode [ 47.805039] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 47.815189] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 47.833303] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 47.841615] team0: Port device team_slave_0 added [ 47.847286] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 47.855157] team0: Port device team_slave_1 added [ 47.860727] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 47.868374] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 47.930641] device hsr_slave_0 entered promiscuous mode [ 47.968672] device hsr_slave_1 entered promiscuous mode [ 48.008860] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 48.016353] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 48.030140] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.036833] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.043998] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.050509] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.083805] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 48.091321] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.100466] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 48.110610] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 48.129849] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.137473] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.145678] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 48.156608] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 48.163457] 8021q: adding VLAN 0 to HW filter on device team0 [ 48.173481] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 48.181902] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.188525] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.211632] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 48.219907] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.226640] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.234375] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 48.242967] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 48.251095] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 48.259524] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 48.267267] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 48.275576] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready executing program executing program [ 48.282049] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 48.294961] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 48.304878] 8021q: adding VLAN 0 to HW filter on device batadv0 executing program executing program executing program executing program executing program executing program [ 49.008915] ------------[ cut here ]------------ [ 49.013844] hsr_addr_subst_dest: Unknown node [ 49.018846] WARNING: CPU: 1 PID: 7603 at net/hsr/hsr_framereg.c:313 hsr_addr_subst_dest+0x382/0x460 [ 49.028057] Kernel panic - not syncing: panic_on_warn set ... [ 49.028057] [ 49.035423] CPU: 1 PID: 7603 Comm: syz-executor817 Not tainted 4.19.80 #0 [ 49.042338] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.051685] Call Trace: [ 49.054264] dump_stack+0x172/0x1f0 [ 49.057879] panic+0x26a/0x50e [ 49.061055] ? __warn_printk+0xf3/0xf3 [ 49.064947] ? hsr_addr_subst_dest+0x382/0x460 [ 49.069533] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.075059] ? __warn.cold+0x5/0x53 [ 49.078683] ? __warn+0xe8/0x1d0 [ 49.082052] ? hsr_addr_subst_dest+0x382/0x460 [ 49.086621] __warn.cold+0x20/0x53 [ 49.090196] ? hsr_addr_subst_dest+0x382/0x460 [ 49.094765] report_bug+0x263/0x2b0 [ 49.098388] do_error_trap+0x204/0x360 [ 49.102281] ? math_error+0x340/0x340 [ 49.106073] ? vprintk_emit+0x1ab/0x690 [ 49.110047] ? error_entry+0x7c/0xe0 [ 49.113758] ? trace_hardirqs_off_caller+0x65/0x220 [ 49.118779] ? vprintk_default+0x28/0x30 [ 49.122843] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.127684] do_invalid_op+0x1b/0x20 [ 49.131394] invalid_op+0x14/0x20 [ 49.134833] RIP: 0010:hsr_addr_subst_dest+0x382/0x460 [ 49.140011] Code: 89 de e8 d1 89 82 fa 84 db 75 d3 e8 88 88 82 fa 48 c7 c6 c0 ec fc 87 48 c7 c7 80 ec fc 87 c6 05 be 4b 4f 02 01 e8 4c fe 55 fa <0f> 0b eb b0 e8 65 88 82 fa 0f b6 1d aa 4b 4f 02 31 ff 89 de e8 95 [ 49.158901] RSP: 0018:ffff88808dc1f5c0 EFLAGS: 00010286 [ 49.164256] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 49.171521] RDX: 0000000000000000 RSI: ffffffff81553f06 RDI: ffffed1011b83eaa [ 49.178777] RBP: ffff88808dc1f600 R08: ffff888096828540 R09: 0000000000000000 [ 49.186033] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808141ade0 [ 49.193342] R13: 0000000000000000 R14: 000000005c77de7e R15: 0000000000000000 [ 49.200618] ? vprintk_func+0x86/0x189 [ 49.204510] hsr_forward_skb+0x1276/0x1c10 [ 49.208752] hsr_dev_xmit+0x72/0xa0 [ 49.212367] dev_hard_start_xmit+0x1a5/0x980 [ 49.216772] ? check_preemption_disabled+0x48/0x290 [ 49.221793] __dev_queue_xmit+0x2704/0x2fe0 [ 49.226120] ? refcount_add_checked+0x33/0x70 [ 49.230620] ? netdev_pick_tx+0x300/0x300 [ 49.234759] ? sock_wmalloc+0x120/0x120 [ 49.238738] ? lock_downgrade+0x880/0x880 [ 49.242889] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.248418] ? skb_copy_datagram_from_iter+0x441/0x660 [ 49.253697] ? memcpy+0x46/0x50 [ 49.257121] dev_queue_xmit+0x18/0x20 [ 49.260918] ? dev_queue_xmit+0x18/0x20 [ 49.264881] packet_sendmsg+0x3bb0/0x6440 [ 49.269031] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 49.274568] ? rw_copy_check_uvector+0x2a6/0x330 [ 49.279469] ? lock_downgrade+0x880/0x880 [ 49.283681] ? packet_notifier+0x840/0x840 [ 49.288028] ? selinux_socket_sendmsg+0x36/0x40 [ 49.292704] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.298271] ? security_socket_sendmsg+0x8d/0xc0 [ 49.303017] ? packet_notifier+0x840/0x840 [ 49.307257] sock_sendmsg+0xd7/0x130 [ 49.310962] ___sys_sendmsg+0x803/0x920 [ 49.314926] ? copy_msghdr_from_user+0x430/0x430 [ 49.319677] ? ___sys_sendmsg+0x920/0x920 [ 49.323843] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.329468] ? __handle_mm_fault+0x7d1/0x3f80 [ 49.333968] ? find_held_lock+0x35/0x130 [ 49.338018] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.343655] ? __fget_light+0x1a9/0x230 [ 49.347618] ? __fdget+0x1b/0x20 [ 49.350971] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 49.356498] __sys_sendmsg+0x105/0x1d0 [ 49.360372] ? __ia32_sys_shutdown+0x80/0x80 [ 49.364880] ? up_read+0x1a/0x110 [ 49.368356] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 49.373096] ? do_syscall_64+0x26/0x620 [ 49.377075] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.382428] ? do_syscall_64+0x26/0x620 [ 49.386413] __x64_sys_sendmsg+0x78/0xb0 [ 49.390601] do_syscall_64+0xfd/0x620 [ 49.394393] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.399563] RIP: 0033:0x442dd9 [ 49.402741] Code: e8 1c 08 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 3b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 49.421627] RSP: 002b:00007fff2cb4d3e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 49.429337] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000442dd9 [ 49.436868] RDX: 0000000000000000 RSI: 0000000020001e40 RDI: 0000000000000003 [ 49.444126] RBP: 000000000000bef4 R08: 00000000000000c2 R09: 00000000000000c2 [ 49.451380] R10: 00000000000000c2 R11: 0000000000000246 R12: 00000000006d4dc8 [ 49.458645] R13: 00000000006d5440 R14: 0000000000000000 R15: 0000000000000000 [ 49.467378] Kernel Offset: disabled [ 49.471066] Rebooting in 86400 seconds..