Warning: Permanently added '10.128.1.108' (ECDSA) to the list of known hosts. 2021/09/04 19:09:18 fuzzer started 2021/09/04 19:09:18 connecting to host at 10.128.0.163:41653 2021/09/04 19:09:18 checking machine... 2021/09/04 19:09:18 checking revisions... 2021/09/04 19:09:19 testing simple program... [ 20.257796][ T25] audit: type=1400 audit(1630782559.051:8): avc: denied { execmem } for pid=1775 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 20.293234][ T1776] cgroup: Unknown subsys name 'perf_event' [ 20.299841][ T1776] cgroup: Unknown subsys name 'net_cls' [ 20.892631][ T1994] ================================================================== [ 20.901597][ T1994] BUG: KCSAN: data-race in cgroup_rstat_flush_locked / cgroup_rstat_updated [ 20.910454][ T1994] [ 20.912977][ T1994] write to 0xffffe8ffffc194b8 of 8 bytes by task 866 on cpu 1: [ 20.921277][ T1994] cgroup_rstat_flush_locked+0x282/0x7f0 [ 20.927242][ T1994] cgroup_rstat_flush_irqsafe+0x24/0x40 [ 20.932951][ T1994] flush_memcg_stats_work+0x34/0x60 [ 20.938136][ T1994] process_one_work+0x402/0x910 [ 20.942962][ T1994] worker_thread+0x636/0xae0 [ 20.947656][ T1994] kthread+0x262/0x280 [ 20.952113][ T1994] ret_from_fork+0x1f/0x30 [ 20.956550][ T1994] [ 20.959068][ T1994] read to 0xffffe8ffffc194b8 of 8 bytes by task 1994 on cpu 0: [ 20.966968][ T1994] cgroup_rstat_updated+0x53/0x1c0 [ 20.972066][ T1994] __mod_lruvec_state+0x7c/0xe0 [ 20.977157][ T1994] __mod_lruvec_page_state+0xd2/0x120 [ 20.982513][ T1994] page_add_new_anon_rmap+0x19e/0x2c0 [ 20.988175][ T1994] do_set_pte+0x19b/0x410 [ 20.992574][ T1994] finish_fault+0x406/0x490 [ 20.997503][ T1994] do_cow_fault+0x34c/0x560 [ 21.001984][ T1994] handle_mm_fault+0x982/0x1530 [ 21.006817][ T1994] do_user_addr_fault+0x609/0xbe0 [ 21.011913][ T1994] exc_page_fault+0x91/0x220 [ 21.016763][ T1994] asm_exc_page_fault+0x1e/0x30 [ 21.021771][ T1994] [ 21.024073][ T1994] value changed: 0xffff888100d1e010 -> 0x0000000000000000 [ 21.031637][ T1994] [ 21.033937][ T1994] Reported by Kernel Concurrency Sanitizer on: [ 21.040064][ T1994] CPU: 0 PID: 1994 Comm: modprobe Not tainted 5.14.0-syzkaller #0 [ 21.047851][ T1994] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 21.058478][ T1994] ================================================================== 2021/09/04 19:09:20 building call list... [ 22.702875][ T25] audit: type=1400 audit(1630782561.502:9): avc: denied { create } for pid=1765 comm="syz-fuzzer" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1