Warning: Permanently added '10.128.1.10' (ECDSA) to the list of known hosts.
2021/03/21 23:24:43 fuzzer started
2021/03/21 23:24:44 dialing manager at 10.128.0.163:39005
2021/03/21 23:24:44 syscalls: 3557
2021/03/21 23:24:44 code coverage: enabled
2021/03/21 23:24:44 comparison tracing: enabled
2021/03/21 23:24:44 extra coverage: enabled
2021/03/21 23:24:44 setuid sandbox: enabled
2021/03/21 23:24:44 namespace sandbox: enabled
2021/03/21 23:24:44 Android sandbox: /sys/fs/selinux/policy does not exist
2021/03/21 23:24:44 fault injection: enabled
2021/03/21 23:24:44 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2021/03/21 23:24:44 net packet injection: enabled
2021/03/21 23:24:44 net device setup: enabled
2021/03/21 23:24:44 concurrency sanitizer: enabled
2021/03/21 23:24:44 devlink PCI setup: PCI device 0000:00:10.0 is not available
2021/03/21 23:24:44 USB emulation: enabled
2021/03/21 23:24:44 hci packet injection: enabled
2021/03/21 23:24:44 wifi device emulation: enabled
2021/03/21 23:24:44 802.15.4 emulation: enabled
2021/03/21 23:24:46 suppressing KCSAN reports in functions: 'alloc_pid' 'wbt_done' 'kauditd_thread' 'audit_log_start' 'n_tty_receive_buf_common' 'blk_mq_dispatch_rq_list' 'blk_mq_rq_ctx_init' 'ext4_free_inode' 'xas_clear_mark' '__ext4_new_inode' 'ext4_writepages' '__add_to_page_cache_locked' 'ext4_mb_good_group' 'expire_timers' '__writeback_single_inode' 'ext4_free_inodes_count' 'blk_mq_sched_dispatch_requests' 'pcpu_alloc' 'generic_write_end' 'xas_find_marked' '__xa_clear_mark' 'dd_has_work' 'do_select' 'ext4_mark_iloc_dirty' 'do_nanosleep' 
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syzkaller login: [   47.255509][ T8367] ==================================================================
[   47.272327][ T8367] BUG: KCSAN: data-race in complete_signal / futex_wait_queue_me
[   47.282454][ T8367] 
[   47.285488][ T8367] write to 0xffff888105e3f02c of 4 bytes by task 8381 on cpu 0:
[   47.296850][ T8367]  futex_wait_queue_me+0x186/0x250
[   47.304453][ T8367]  futex_wait+0x145/0x400
[   47.309106][ T8367]  do_futex+0x1062/0x1cd0
[   47.314601][ T8367]  __se_sys_futex+0x2a8/0x390
[   47.325222][ T8367]  __x64_sys_futex+0x74/0x80
[   47.335567][ T8367]  do_syscall_64+0x39/0x80
[   47.342799][ T8367]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   47.351714][ T8367] 
[   47.354920][ T8367] read to 0xffff888105e3f02c of 4 bytes by task 8367 on cpu 1:
[   47.371600][ T8367]  complete_signal+0x7c/0x600
[   47.378640][ T8367]  __send_signal+0x662/0x780
[   47.385017][ T8367]  send_signal+0x398/0x3e0
[   47.391406][ T8367]  do_send_sig_info+0x9b/0xe0
[   47.397289][ T8367]  do_send_specific+0xc7/0x100
[   47.404344][ T8367]  __x64_sys_tgkill+0x108/0x140
[   47.410247][ T8367]  do_syscall_64+0x39/0x80
[   47.414846][ T8367]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   47.421855][ T8367] 
[   47.425436][ T8367] Reported by Kernel Concurrency Sanitizer on:
[   47.432022][ T8367] CPU: 1 PID: 8367 Comm: syz-fuzzer Not tainted 5.12.0-rc3-syzkaller #0
2021/03/21 23:24:57 fetching corpus: 4325, signal 240062/314040 (executing program)
[   47.441725][ T8367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   47.468283][ T8367] ==================================================================
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