Warning: Permanently added '10.128.1.23' (ECDSA) to the list of known hosts.
2020/06/15 20:17:08 fuzzer started
2020/06/15 20:17:08 dialing manager at 10.128.0.105:43759
2020/06/15 20:17:09 syscalls: 3085
2020/06/15 20:17:09 code coverage: enabled
2020/06/15 20:17:09 comparison tracing: enabled
2020/06/15 20:17:09 extra coverage: enabled
2020/06/15 20:17:09 setuid sandbox: enabled
2020/06/15 20:17:09 namespace sandbox: enabled
2020/06/15 20:17:09 Android sandbox: /sys/fs/selinux/policy does not exist
2020/06/15 20:17:09 fault injection: enabled
2020/06/15 20:17:09 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/06/15 20:17:09 net packet injection: enabled
2020/06/15 20:17:09 net device setup: enabled
2020/06/15 20:17:09 concurrency sanitizer: enabled
2020/06/15 20:17:09 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/06/15 20:17:09 USB emulation: enabled
2020/06/15 20:17:09 suppressing KCSAN reports in functions: 'ep_poll' 'run_timer_softirq' 'copy_process' 'file_update_time' '__ext4_new_inode' 'page_counter_charge' 
syzkaller login: [   54.388898][ T8878] ==================================================================
[   54.397022][ T8878] BUG: KCSAN: data-race in mod_timer / timer_clear_idle
[   54.403926][ T8878] 
[   54.406234][ T8878] write to 0xffff88812c01dca4 of 1 bytes by task 0 on cpu 0:
[   54.413579][ T8878]  timer_clear_idle+0x3d/0x50
[   54.418248][ T8878]  __tick_nohz_idle_restart_tick+0x32/0x1a0
[   54.424125][ T8878]  tick_nohz_idle_exit+0x19c/0x1d0
[   54.429213][ T8878]  do_idle+0xac/0x290
[   54.433171][ T8878]  cpu_startup_entry+0x14/0x20
[   54.437914][ T8878]  rest_init+0xe4/0xeb
[   54.441959][ T8878]  arch_call_rest_init+0x13/0x2b
[   54.446871][ T8878]  start_kernel+0x7fe/0x823
[   54.451352][ T8878]  secondary_startup_64+0xa4/0xb0
[   54.456344][ T8878] 
[   54.458666][ T8878] read to 0xffff88812c01dca4 of 1 bytes by task 8878 on cpu 1:
[   54.466196][ T8878]  mod_timer+0x631/0x830
[   54.470423][ T8878]  sk_reset_timer+0x29/0xc0
[   54.474923][ T8878]  tcp_rearm_rto+0x1ce/0x280
[   54.479500][ T8878]  tcp_event_new_data_sent+0x23f/0x260
[   54.484947][ T8878]  tcp_write_xmit+0x5c6/0x31e0
[   54.489689][ T8878]  __tcp_push_pending_frames+0x72/0x1b0
[   54.495219][ T8878]  tcp_push+0x1ec/0x3e0
[   54.499348][ T8878]  tcp_sendmsg_locked+0x1de3/0x20f0
[   54.504632][ T8878]  tcp_sendmsg+0x35/0x50
[   54.508851][ T8878]  inet_sendmsg+0x69/0x90
[   54.513154][ T8878]  sock_sendmsg+0x98/0xc0
[   54.517459][ T8878]  sock_write_iter+0x186/0x240
[   54.522198][ T8878]  new_sync_write+0x303/0x400
[   54.526851][ T8878]  __vfs_write+0x9e/0xb0
[   54.531069][ T8878]  vfs_write+0x189/0x380
[   54.535283][ T8878]  ksys_write+0x16a/0x1a0
[   54.539599][ T8878]  __x64_sys_write+0x49/0x60
[   54.544163][ T8878]  do_syscall_64+0xc7/0x3b0
[   54.548641][ T8878]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   54.554500][ T8878] 
[   54.556813][ T8878] Reported by Kernel Concurrency Sanitizer on:
[   54.562941][ T8878] CPU: 1 PID: 8878 Comm: syz-fuzzer Not tainted 5.7.0-rc1-syzkaller #0
[   54.571150][ T8878] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   54.581191][ T8878] ==================================================================
[   54.589225][ T8878] Kernel panic - not syncing: panic_on_warn set ...
[   54.595786][ T8878] CPU: 1 PID: 8878 Comm: syz-fuzzer Not tainted 5.7.0-rc1-syzkaller #0
[   54.603993][ T8878] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   54.614021][ T8878] Call Trace:
[   54.617289][ T8878]  dump_stack+0x11d/0x187
[   54.621612][ T8878]  panic+0x210/0x640
[   54.625485][ T8878]  ? vprintk_func+0x89/0x13a
[   54.630052][ T8878]  kcsan_report.cold+0xc/0x1a
[   54.634813][ T8878]  kcsan_setup_watchpoint+0x3fb/0x440
[   54.640176][ T8878]  mod_timer+0x631/0x830
[   54.644405][ T8878]  sk_reset_timer+0x29/0xc0
[   54.648892][ T8878]  tcp_rearm_rto+0x1ce/0x280
[   54.653460][ T8878]  tcp_event_new_data_sent+0x23f/0x260
[   54.658901][ T8878]  tcp_write_xmit+0x5c6/0x31e0
[   54.663662][ T8878]  ? iov_iter_advance+0x21c/0x900
[   54.668664][ T8878]  __tcp_push_pending_frames+0x72/0x1b0
[   54.674182][ T8878]  tcp_push+0x1ec/0x3e0
[   54.678316][ T8878]  tcp_sendmsg_locked+0x1de3/0x20f0
[   54.683496][ T8878]  ? aa_label_sk_perm.part.0+0x220/0x290
[   54.689107][ T8878]  tcp_sendmsg+0x35/0x50
[   54.693326][ T8878]  inet_sendmsg+0x69/0x90
[   54.697647][ T8878]  ? inet_send_prepare+0x1f0/0x1f0
[   54.702748][ T8878]  sock_sendmsg+0x98/0xc0
[   54.707065][ T8878]  sock_write_iter+0x186/0x240
[   54.711808][ T8878]  new_sync_write+0x303/0x400
[   54.716468][ T8878]  __vfs_write+0x9e/0xb0
[   54.720698][ T8878]  vfs_write+0x189/0x380
[   54.724915][ T8878]  ksys_write+0x16a/0x1a0
[   54.729220][ T8878]  __x64_sys_write+0x49/0x60
[   54.733808][ T8878]  do_syscall_64+0xc7/0x3b0
[   54.738290][ T8878]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   54.744170][ T8878] RIP: 0033:0x4b3cdb
[   54.748045][ T8878] 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
[   54.767622][ T8878] RSP: 002b:000000c0009db540 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   54.776006][ T8878] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b3cdb
[   54.784474][ T8878] RDX: 0000000000000007 RSI: 000000c00000a200 RDI: 0000000000000006
[   54.792524][ T8878] RBP: 000000c0009db590 R08: 000000c00000a201 R09: 0000000000000007
[   54.800471][ T8878] R10: 000000c0000ac000 R11: 0000000000000202 R12: 000000000000011e
[   54.808417][ T8878] R13: 000000c000380000 R14: 000000000000000f R15: 0000000000000941
[   55.902402][ T8878] Shutting down cpus with NMI
[   55.908448][ T8878] Kernel Offset: disabled
[   55.912792][ T8878] Rebooting in 86400 seconds..