Warning: Permanently added '10.128.1.7' (ECDSA) to the list of known hosts.
2020/06/14 13:29:29 fuzzer started
2020/06/14 13:29:29 dialing manager at 10.128.0.105:36539
2020/06/14 13:29:30 syscalls: 3085
2020/06/14 13:29:30 code coverage: enabled
2020/06/14 13:29:30 comparison tracing: enabled
2020/06/14 13:29:30 extra coverage: enabled
2020/06/14 13:29:30 setuid sandbox: enabled
2020/06/14 13:29:30 namespace sandbox: enabled
2020/06/14 13:29:30 Android sandbox: /sys/fs/selinux/policy does not exist
2020/06/14 13:29:30 fault injection: enabled
2020/06/14 13:29:30 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/06/14 13:29:30 net packet injection: enabled
2020/06/14 13:29:30 net device setup: enabled
2020/06/14 13:29:30 concurrency sanitizer: enabled
2020/06/14 13:29:30 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/06/14 13:29:30 USB emulation: enabled
syzkaller login: [   55.475930][ T8911] KCSAN: could not find function: '_find_next_bit'
2020/06/14 13:29:33 adding functions to KCSAN blacklist: '__ext4_new_inode' 'generic_file_read_iter' 'file_update_time' 'tick_sched_do_timer' 'blk_mq_dispatch_rq_list' 'ep_poll' 'ext4_mb_good_group' 'generic_write_end' 'blk_mq_request_bypass_insert' 'decrypt_packet' 'find_get_pages_range_tag' 'tick_nohz_idle_stop_tick' 'futex_wait_queue_me' 'xas_clear_mark' 'run_timer_softirq' 'page_counter_charge' 'pcpu_alloc' '__filemap_fdatawrite_range' 'vm_area_dup' 'do_exit' '__send_signal' 'copy_process' 'do_nanosleep' 'audit_log_start' '__snd_rawmidi_transmit_ack' 'ext4_mark_iloc_dirty' 'kauditd_thread' '_find_next_bit' 'do_signal_stop' 'wbt_done' 'ptrace_check_attach' 
[  179.697588][ T8896] ==================================================================
[  179.705713][ T8896] BUG: KCSAN: data-race in mod_timer / timer_clear_idle
[  179.712627][ T8896] 
[  179.715020][ T8896] write to 0xffff88812c01dca4 of 1 bytes by task 0 on cpu 0:
[  179.722388][ T8896]  timer_clear_idle+0x3d/0x50
[  179.727049][ T8896]  __tick_nohz_idle_restart_tick+0x32/0x1a0
[  179.732961][ T8896]  tick_nohz_idle_exit+0x19c/0x1d0
[  179.738049][ T8896]  do_idle+0xac/0x290
[  179.742023][ T8896]  cpu_startup_entry+0x14/0x20
[  179.746791][ T8896]  rest_init+0xe4/0xeb
[  179.750842][ T8896]  arch_call_rest_init+0x13/0x2b
[  179.755773][ T8896]  start_kernel+0x7fe/0x823
[  179.760256][ T8896]  secondary_startup_64+0xa4/0xb0
[  179.765251][ T8896] 
[  179.767561][ T8896] read to 0xffff88812c01dca4 of 1 bytes by task 8896 on cpu 1:
[  179.775096][ T8896]  mod_timer+0x631/0x830
[  179.779321][ T8896]  sk_reset_timer+0x29/0xc0
[  179.783801][ T8896]  tcp_rearm_rto+0x1ce/0x280
[  179.788381][ T8896]  tcp_event_new_data_sent+0x23f/0x260
[  179.793816][ T8896]  tcp_write_xmit+0x5c6/0x31e0
[  179.798818][ T8896]  __tcp_push_pending_frames+0x72/0x1b0
[  179.804380][ T8896]  tcp_push+0x1ec/0x3e0
[  179.808535][ T8896]  tcp_sendmsg_locked+0x1de3/0x20f0
[  179.813707][ T8896]  tcp_sendmsg+0x35/0x50
[  179.817941][ T8896]  inet_sendmsg+0x69/0x90
[  179.822263][ T8896]  sock_sendmsg+0x98/0xc0
[  179.826566][ T8896]  sock_write_iter+0x186/0x240
[  179.831332][ T8896]  new_sync_write+0x303/0x400
[  179.836000][ T8896]  __vfs_write+0x9e/0xb0
[  179.840217][ T8896]  vfs_write+0x189/0x380
[  179.844434][ T8896]  ksys_write+0x16a/0x1a0
[  179.848736][ T8896]  __x64_sys_write+0x49/0x60
[  179.853304][ T8896]  do_syscall_64+0xc7/0x3b0
[  179.857791][ T8896]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  179.863652][ T8896] 
[  179.865956][ T8896] Reported by Kernel Concurrency Sanitizer on:
[  179.872108][ T8896] CPU: 1 PID: 8896 Comm: syz-fuzzer Not tainted 5.7.0-rc1-syzkaller #0
[  179.880351][ T8896] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  179.891618][ T8896] ==================================================================
[  179.899666][ T8896] Kernel panic - not syncing: panic_on_warn set ...
[  179.906258][ T8896] CPU: 1 PID: 8896 Comm: syz-fuzzer Not tainted 5.7.0-rc1-syzkaller #0
[  179.914465][ T8896] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  179.924504][ T8896] Call Trace:
[  179.927783][ T8896]  dump_stack+0x11d/0x187
[  179.932111][ T8896]  panic+0x210/0x640
[  179.935990][ T8896]  ? vprintk_func+0x89/0x13a
[  179.940563][ T8896]  kcsan_report.cold+0xc/0x1a
[  179.945240][ T8896]  kcsan_setup_watchpoint+0x3fb/0x440
[  179.950607][ T8896]  mod_timer+0x631/0x830
[  179.954831][ T8896]  sk_reset_timer+0x29/0xc0
[  179.959415][ T8896]  tcp_rearm_rto+0x1ce/0x280
[  179.963984][ T8896]  tcp_event_new_data_sent+0x23f/0x260
[  179.969421][ T8896]  tcp_write_xmit+0x5c6/0x31e0
[  179.974178][ T8896]  ? iov_iter_advance+0x21c/0x900
[  179.979204][ T8896]  __tcp_push_pending_frames+0x72/0x1b0
[  179.984756][ T8896]  tcp_push+0x1ec/0x3e0
[  179.988907][ T8896]  tcp_sendmsg_locked+0x1de3/0x20f0
[  179.994103][ T8896]  ? aa_label_sk_perm.part.0+0x220/0x290
[  179.999733][ T8896]  tcp_sendmsg+0x35/0x50
[  180.004239][ T8896]  inet_sendmsg+0x69/0x90
[  180.008565][ T8896]  ? inet_send_prepare+0x1f0/0x1f0
[  180.013678][ T8896]  sock_sendmsg+0x98/0xc0
[  180.017990][ T8896]  sock_write_iter+0x186/0x240
[  180.022842][ T8896]  new_sync_write+0x303/0x400
[  180.027513][ T8896]  __vfs_write+0x9e/0xb0
[  180.031735][ T8896]  vfs_write+0x189/0x380
[  180.035983][ T8896]  ksys_write+0x16a/0x1a0
[  180.040298][ T8896]  __x64_sys_write+0x49/0x60
[  180.044884][ T8896]  do_syscall_64+0xc7/0x3b0
[  180.049385][ T8896]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  180.055271][ T8896] RIP: 0033:0x4b3cdb
[  180.059192][ T8896] Code: ff e9 69 ff ff ff cc cc cc cc cc cc cc cc cc e8 bb a1 f8 ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30
[  180.078919][ T8896] RSP: 002b:000000c0124a1540 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  180.087321][ T8896] RAX: ffffffffffffffda RBX: 000000c00002e800 RCX: 00000000004b3cdb
[  180.095277][ T8896] RDX: 0000000000000007 RSI: 000000c00000a200 RDI: 0000000000000006
[  180.103229][ T8896] RBP: 000000c0124a1590 R08: 000000c00000a201 R09: 0000000000000007
[  180.111177][ T8896] R10: 000000c000112000 R11: 0000000000000202 R12: 000000000000011e
[  180.119125][ T8896] R13: 000000c000342000 R14: 0000000000000007 R15: 000000000000a3c8
[  181.203506][ T8896] Shutting down cpus with NMI
[  181.209644][ T8896] Kernel Offset: disabled
[  181.213966][ T8896] Rebooting in 86400 seconds..