Warning: Permanently added '10.128.1.6' (ECDSA) to the list of known hosts.
2021/09/03 23:28:12 fuzzer started
2021/09/03 23:28:12 connecting to host at 10.128.0.163:34063
2021/09/03 23:28:12 checking machine...
2021/09/03 23:28:12 checking revisions...
2021/09/03 23:28:12 testing simple program...
syzkaller login: [   19.937941][ T1770] ==================================================================
[   19.939362][ T1770] BUG: KCSAN: data-race in cgroup_rstat_flush_locked / cgroup_rstat_updated
[   19.941595][ T1770] 
[   19.941926][ T1770] write to 0xffffe8ffffd193c0 of 8 bytes by task 36 on cpu 0:
[   19.942942][ T1770]  cgroup_rstat_flush_locked+0x282/0x7f0
[   19.943883][ T1770]  cgroup_rstat_flush_irqsafe+0x24/0x40
[   19.944765][ T1770]  flush_memcg_stats_work+0x34/0x60
[   19.945703][ T1770]  process_one_work+0x402/0x910
[   19.946480][ T1770]  worker_thread+0x636/0xae0
[   19.947102][ T1770]  kthread+0x262/0x280
[   19.948444][ T1770]  ret_from_fork+0x1f/0x30
[   19.949141][ T1770] 
[   19.949536][ T1770] read to 0xffffe8ffffd193c0 of 8 bytes by task 1770 on cpu 1:
[   19.950863][ T1770]  cgroup_rstat_updated+0x53/0x1c0
[   19.951822][ T1770]  __count_memcg_events+0x43/0x50
[   19.952548][ T1770]  __activate_page+0x50c/0x5f0
[   19.953212][ T1770]  pagevec_lru_move_fn+0x1c4/0x2d0
[   19.954189][ T1770]  mark_page_accessed+0x485/0x550
[   19.954993][ T1770]  zap_pte_range+0x5f3/0xe00
[   19.955950][ T1770]  unmap_page_range+0x2dc/0x3d0
[   19.956670][ T1770]  unmap_single_vma+0x157/0x210
[   19.957602][ T1770]  unmap_vmas+0xc0/0x170
[   19.959250][ T1770]  exit_mmap+0x22d/0x460
[   19.963467][ T1770]  __mmput+0x27/0x1c0
[   19.967509][ T1770]  mmput+0x3d/0x50
[   19.971376][ T1770]  exit_mm+0x2f7/0x3f0
[   19.975419][ T1770]  do_exit+0x3ef/0x14a0
[   19.979819][ T1770]  do_group_exit+0xa4/0x1a0
[   19.984395][ T1770]  __do_sys_exit_group+0xb/0x10
[   19.989220][ T1770]  __se_sys_exit_group+0x5/0x10
[   19.994130][ T1770]  __x64_sys_exit_group+0x16/0x20
[   19.999130][ T1770]  do_syscall_64+0x3d/0x90
[   20.003890][ T1770]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   20.009776][ T1770] 
[   20.012144][ T1770] value changed: 0xffff888100c40010 -> 0x0000000000000000
[   20.019229][ T1770] 
[   20.021547][ T1770] Reported by Kernel Concurrency Sanitizer on:
[   20.027768][ T1770] CPU: 1 PID: 1770 Comm: syz-executor Not tainted 5.14.0-syzkaller #0
[   20.035980][ T1770] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   20.046018][ T1770] ==================================================================
[   20.072387][   T25] audit: type=1400 audit(1630711693.073:8): avc:  denied  { execmem } for  pid=1771 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[   20.105627][ T1772] cgroup: Unknown subsys name 'perf_event'
[   20.111869][ T1772] cgroup: Unknown subsys name 'net_cls'
2021/09/03 23:28:14 building call list...
[   22.278602][   T25] audit: type=1400 audit(1630711695.284:9): avc:  denied  { create } for  pid=1761 comm="syz-fuzzer" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1