[ 66.856285][ T26] audit: type=1800 audit(1564038032.819:24): pid=9164 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="sudo" dev="sda1" ino=2454 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 67.522617][ T26] audit: type=1800 audit(1564038033.629:25): pid=9164 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 67.562126][ T26] audit: type=1800 audit(1564038033.629:26): pid=9164 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 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 '10.128.0.155' (ECDSA) to the list of known hosts. syzkaller login: [ 92.348613][ T9318] IPVS: ftp: loaded support on port[0] = 21 [ 92.398524][ T9318] chnl_net:caif_netlink_parms(): no params data found [ 92.423770][ T9318] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.431389][ T9318] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.439597][ T9318] device bridge_slave_0 entered promiscuous mode [ 92.447732][ T9318] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.455029][ T9318] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.462767][ T9318] device bridge_slave_1 entered promiscuous mode [ 92.478529][ T9318] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 92.489031][ T9318] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 92.506774][ T9318] team0: Port device team_slave_0 added [ 92.513738][ T9318] team0: Port device team_slave_1 added [ 92.565108][ T9318] device hsr_slave_0 entered promiscuous mode [ 92.632394][ T9318] device hsr_slave_1 entered promiscuous mode [ 92.720322][ T9318] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.727696][ T9318] bridge0: port 2(bridge_slave_1) entered forwarding state [ 92.735724][ T9318] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.742909][ T9318] bridge0: port 1(bridge_slave_0) entered forwarding state [ 92.775804][ T9318] 8021q: adding VLAN 0 to HW filter on device bond0 [ 92.788112][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 92.808424][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.817327][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.826287][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 92.838808][ T9318] 8021q: adding VLAN 0 to HW filter on device team0 [ 92.849369][ T3511] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 92.858376][ T3511] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.865600][ T3511] bridge0: port 1(bridge_slave_0) entered forwarding state [ 92.877312][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 92.886567][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.893837][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 92.916200][ T3511] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 92.924993][ T3511] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 92.933987][ T3511] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 92.943103][ T3511] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 92.955814][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 92.966530][ T9318] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready executing program [ 92.984647][ T9318] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 93.186656][ C0] BUG: spinlock recursion on CPU#0, syz-executor112/9318 [ 93.193745][ C0] lock: 0xffff888093f24d08, .magic: dead4ead, .owner: syz-executor112/9318, .owner_cpu: 0 [ 93.203904][ C0] CPU: 0 PID: 9318 Comm: syz-executor112 Not tainted 5.3.0-rc1-next-20190724 #50 [ 93.213133][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.223326][ C0] Call Trace: [ 93.226600][ C0] [ 93.229485][ C0] dump_stack+0x172/0x1f0 [ 93.233817][ C0] spin_dump.cold+0x81/0xe6 [ 93.238310][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.244542][ C0] do_raw_spin_lock+0x252/0x2e0 [ 93.249528][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 93.254445][ C0] ? lock_acquire+0x190/0x410 [ 93.259100][ C0] ? release_sock+0x20/0x1c0 [ 93.263718][ C0] ? __kasan_check_read+0x11/0x20 [ 93.268740][ C0] _raw_spin_lock_bh+0x3b/0x50 [ 93.273699][ C0] ? release_sock+0x20/0x1c0 [ 93.278361][ C0] release_sock+0x20/0x1c0 [ 93.282766][ C0] wait_on_pending_writer+0x20f/0x420 [ 93.288135][ C0] ? ip6_rcv_finish+0x1de/0x2f0 [ 93.292978][ C0] ? tls_init+0x560/0x560 [ 93.297289][ C0] ? process_backlog+0x206/0x750 [ 93.302219][ C0] ? net_rx_action+0x508/0x10c0 [ 93.307066][ C0] ? __do_softirq+0x262/0x98c [ 93.311974][ C0] ? prepare_to_wait_exclusive+0x320/0x320 [ 93.317826][ C0] ? inet_release+0xed/0x200 [ 93.322404][ C0] ? inet6_release+0x53/0x80 [ 93.326992][ C0] ? __sock_release+0xce/0x280 [ 93.331972][ C0] ? sock_close+0x1e/0x30 [ 93.336530][ C0] ? __fput+0x2ff/0x890 [ 93.340667][ C0] ? ____fput+0x16/0x20 [ 93.344796][ C0] ? task_work_run+0x145/0x1c0 [ 93.349585][ C0] ? exit_to_usermode_loop+0x316/0x380 [ 93.355037][ C0] tls_sk_proto_cleanup+0x2c5/0x3e0 [ 93.360223][ C0] ? wait_on_pending_writer+0x420/0x420 [ 93.365750][ C0] tls_sk_proto_unhash+0x90/0x3f0 [ 93.370875][ C0] ? kfree_skbmem+0xa5/0x150 [ 93.375558][ C0] tcp_set_state+0x5b9/0x7d0 [ 93.380134][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 93.386380][ C0] ? __sk_mem_reduce_allocated+0x190/0x560 [ 93.392321][ C0] ? tcp_alloc_md5sig_pool+0x4a0/0x4a0 [ 93.397762][ C0] ? __sk_mem_reclaim+0x55/0x70 [ 93.402635][ C0] ? tcp_write_queue_purge+0x5d8/0x1310 [ 93.408365][ C0] tcp_done+0xe2/0x320 [ 93.412422][ C0] tcp_reset+0x132/0x500 [ 93.416663][ C0] tcp_validate_incoming+0xa2d/0x1660 [ 93.422037][ C0] tcp_rcv_established+0x6b5/0x1e70 [ 93.427227][ C0] ? tcp_data_queue+0x4860/0x4860 [ 93.432500][ C0] tcp_v6_do_rcv+0x41e/0x12c0 [ 93.437261][ C0] tcp_v6_rcv+0x31f1/0x3500 [ 93.441747][ C0] ? __kasan_check_read+0x11/0x20 [ 93.446891][ C0] ? mark_lock+0x98/0x11e0 [ 93.451296][ C0] ? tcp_v6_syn_recv_sock+0x2290/0x2290 [ 93.456933][ C0] ip6_protocol_deliver_rcu+0x2fe/0x1660 [ 93.462599][ C0] ip6_input_finish+0x84/0x170 [ 93.467413][ C0] ip6_input+0xe4/0x3f0 [ 93.471681][ C0] ? ip6_input_finish+0x170/0x170 [ 93.476688][ C0] ? ip6_protocol_deliver_rcu+0x1660/0x1660 [ 93.482565][ C0] ? lock_downgrade+0x920/0x920 [ 93.487408][ C0] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 93.493639][ C0] ip6_rcv_finish+0x1de/0x2f0 [ 93.498405][ C0] ipv6_rcv+0x10e/0x420 [ 93.502551][ C0] ? ip6_rcv_core.isra.0+0x1bb0/0x1bb0 [ 93.508063][ C0] ? __kasan_check_read+0x11/0x20 [ 93.513172][ C0] ? mark_lock+0xc0/0x11e0 [ 93.517579][ C0] ? ip6_rcv_finish_core.isra.0+0x560/0x560 [ 93.523460][ C0] ? ip6_rcv_core.isra.0+0x1bb0/0x1bb0 [ 93.528908][ C0] __netif_receive_skb_one_core+0x113/0x1a0 [ 93.534825][ C0] ? __netif_receive_skb_core+0x3060/0x3060 [ 93.540726][ C0] ? lock_acquire+0x190/0x410 [ 93.545392][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.551892][ C0] __netif_receive_skb+0x2c/0x1d0 [ 93.556902][ C0] process_backlog+0x206/0x750 [ 93.561654][ C0] ? net_rx_action+0x27b/0x10c0 [ 93.566498][ C0] ? lockdep_hardirqs_on+0x19e/0x5d0 [ 93.571774][ C0] net_rx_action+0x508/0x10c0 [ 93.576504][ C0] ? napi_complete_done+0x4b0/0x4b0 [ 93.581708][ C0] __do_softirq+0x262/0x98c [ 93.586213][ C0] ? inet_csk_listen_stop+0x1bc/0x850 [ 93.591566][ C0] do_softirq_own_stack+0x2a/0x40 [ 93.596562][ C0] [ 93.599628][ C0] do_softirq.part.0+0x11a/0x170 [ 93.604558][ C0] __local_bh_enable_ip+0x211/0x270 [ 93.609750][ C0] inet_csk_listen_stop+0x1e0/0x850 [ 93.614936][ C0] tcp_close+0xd5b/0x10e0 [ 93.619260][ C0] ? ip_mc_drop_socket+0x211/0x270 [ 93.624456][ C0] ? down_write+0xdf/0x150 [ 93.629421][ C0] inet_release+0xed/0x200 [ 93.635374][ C0] inet6_release+0x53/0x80 [ 93.639944][ C0] __sock_release+0xce/0x280 [ 93.644525][ C0] sock_close+0x1e/0x30 [ 93.648713][ C0] __fput+0x2ff/0x890 [ 93.652695][ C0] ? __sock_release+0x280/0x280 [ 93.657533][ C0] ____fput+0x16/0x20 [ 93.661506][ C0] task_work_run+0x145/0x1c0 [ 93.666222][ C0] exit_to_usermode_loop+0x316/0x380 [ 93.671530][ C0] do_syscall_64+0x65f/0x760 [ 93.676109][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 93.682056][ C0] RIP: 0033:0x406571 [ 93.685948][ C0] Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 24 1a 00 00 c3 48 83 ec 08 e8 6a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 b3 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 [ 93.705965][ C0] RSP: 002b:00007ffea23fca50 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 93.714373][ C0] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000406571 [ 93.722441][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 93.730496][ C0] RBP: 00000000006dcc20 R08: 0000000000000140 R09: 0000000000000140 [ 93.739534][ C0] R10: 00007ffea23fca80 R11: 0000000000000293 R12: 00007ffea23fcab0 [ 93.747815][ C0] R13: 00000000006dcc2c R14: 000000000000002d R15: 0000000000000007