Warning: Permanently added '10.128.1.67' (ECDSA) to the list of known hosts.
2021/02/24 01:23:38 fuzzer started
2021/02/24 01:23:38 dialing manager at 10.128.0.163:35359
2021/02/24 01:23:38 syscalls: 3541
2021/02/24 01:23:38 code coverage: enabled
2021/02/24 01:23:38 comparison tracing: enabled
2021/02/24 01:23:38 extra coverage: enabled
2021/02/24 01:23:38 setuid sandbox: enabled
2021/02/24 01:23:38 namespace sandbox: enabled
2021/02/24 01:23:38 Android sandbox: /sys/fs/selinux/policy does not exist
2021/02/24 01:23:38 fault injection: enabled
2021/02/24 01:23:38 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2021/02/24 01:23:38 net packet injection: enabled
2021/02/24 01:23:38 net device setup: enabled
2021/02/24 01:23:38 concurrency sanitizer: enabled
2021/02/24 01:23:38 devlink PCI setup: PCI device 0000:00:10.0 is not available
2021/02/24 01:23:38 USB emulation: enabled
2021/02/24 01:23:38 hci packet injection: enabled
2021/02/24 01:23:38 wifi device emulation: enabled
2021/02/24 01:23:38 802.15.4 emulation: enabled
2021/02/24 01:23:42 suppressing KCSAN reports in functions: 'alloc_pid' 'jbd2_journal_dirty_metadata' 'ext4_mark_iloc_dirty' '__ext4_new_inode' 'xas_find_marked' 'blk_mq_sched_dispatch_requests' 'start_this_handle' 'n_tty_receive_buf_common' '__send_signal' 'blk_mq_dispatch_rq_list' 'xas_clear_mark' 'isolate_migratepages_block' '__mark_inode_dirty' 'do_nanosleep' 'mm_update_next_owner' '__delete_from_page_cache' 'tick_sched_timer' 'expire_timers' 'ext4_fc_commit' 'ext4_writepages' 'wbt_done' 'prandom_seed' '__process_echoes' 'ext4_mb_good_group' 'ext4_free_inode' 'generic_write_end' 'shmem_mknod' 'do_signal_stop' 'complete_signal' 'ext4_mb_find_by_goal' '__filemap_fdatawrite_range' 'jbd2_journal_commit_transaction' '__xa_clear_mark' 'do_sys_poll' 'pcpu_alloc' 'ext4_free_inodes_count' 'blk_mq_rq_ctx_init' 'futex_wait_queue_me' 'wbt_issue' 'audit_log_start' 'find_get_pages_range_tag' 'do_select' 'atime_needs_update' 'dd_has_work' 'wbt_wait' 
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syzkaller login: [   38.435990][ T8326] ==================================================================
[   38.444142][ T8326] BUG: KCSAN: data-race in do_epoll_wait / do_epoll_wait
[   38.451175][ T8326] 
[   38.453496][ T8326] write to 0xffff8881094b6658 of 8 bytes by task 8323 on cpu 0:
[   38.461117][ T8326]  do_epoll_wait+0x4d3/0xf00
[   38.465718][ T8326]  __se_sys_epoll_pwait+0xfb/0x210
[   38.470811][ T8326]  __x64_sys_epoll_pwait+0x74/0x80
[   38.475902][ T8326]  do_syscall_64+0x39/0x80
[   38.480317][ T8326]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   38.486224][ T8326] 
[   38.488532][ T8326] read to 0xffff8881094b6658 of 8 bytes by task 8326 on cpu 1:
[   38.496049][ T8326]  do_epoll_wait+0x292/0xf00
[   38.500621][ T8326]  __se_sys_epoll_pwait+0xfb/0x210
[   38.505710][ T8326]  __x64_sys_epoll_pwait+0x74/0x80
[   38.510801][ T8326]  do_syscall_64+0x39/0x80
[   38.515195][ T8326]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   38.521071][ T8326] 
[   38.523373][ T8326] Reported by Kernel Concurrency Sanitizer on:
[   38.529522][ T8326] CPU: 1 PID: 8326 Comm: syz-fuzzer Not tainted 5.11.0-syzkaller #0
[   38.537485][ T8326] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   38.547520][ T8326] ==================================================================
[   38.555562][ T8326] Kernel panic - not syncing: panic_on_warn set ...
[   38.562120][ T8326] CPU: 1 PID: 8326 Comm: syz-fuzzer Not tainted 5.11.0-syzkaller #0
[   38.570089][ T8326] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   38.580120][ T8326] Call Trace:
[   38.583394][ T8326]  dump_stack+0x137/0x19d
[   38.587728][ T8326]  panic+0x1e7/0x5fa
[   38.591636][ T8326]  ? vprintk_emit+0x2fa/0x3e0
[   38.596296][ T8326]  kcsan_report+0x67b/0x680
[   38.600788][ T8326]  ? kcsan_setup_watchpoint+0x40b/0x470
[   38.606312][ T8326]  ? do_epoll_wait+0x292/0xf00
[   38.611074][ T8326]  ? __se_sys_epoll_pwait+0xfb/0x210
[   38.616339][ T8326]  ? __x64_sys_epoll_pwait+0x74/0x80
[   38.621605][ T8326]  ? do_syscall_64+0x39/0x80
[   38.626172][ T8326]  ? entry_SYSCALL_64_after_hwframe+0x44/0xae
[   38.632252][ T8326]  ? tcp_recvmsg+0x193/0x430
[   38.636846][ T8326]  ? __rcu_read_unlock+0x5c/0x250
[   38.641855][ T8326]  kcsan_setup_watchpoint+0x40b/0x470
[   38.647207][ T8326]  do_epoll_wait+0x292/0xf00
[   38.651793][ T8326]  ? vfs_read+0x3e1/0x5d0
[   38.656109][ T8326]  __se_sys_epoll_pwait+0xfb/0x210
[   38.661203][ T8326]  __x64_sys_epoll_pwait+0x74/0x80
[   38.666297][ T8326]  do_syscall_64+0x39/0x80
[   38.670695][ T8326]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   38.676570][ T8326] RIP: 0033:0x46e380
[   38.680453][ T8326] Code: 0f 05 89 44 24 20 c3 cc cc cc 8b 7c 24 08 48 8b 74 24 10 8b 54 24 18 44 8b 54 24 1c 49 c7 c0 00 00 00 00 b8 19 01 00 00 0f 05 <89> 44 24 20 c3 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc
[   38.700043][ T8326] RSP: 002b:000000c0000397f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000119
[   38.708433][ T8326] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000046e380
[   38.716387][ T8326] RDX: 0000000000000080 RSI: 000000c000039840 RDI: 0000000000000003
[   38.724337][ T8326] RBP: 000000c000039e40 R08: 0000000000000000 R09: 0000000000000010
[   38.732287][ T8326] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000002a18
[   38.740239][ T8326] R13: 0000000000000080 R14: 0000000000000008 R15: 0000000000000008
[   38.748801][ T8326] Kernel Offset: disabled
[   38.753106][ T8326] Rebooting in 86400 seconds..