Warning: Permanently added '10.128.10.3' (ECDSA) to the list of known hosts.
2021/04/28 21:09:33 fuzzer started
2021/04/28 21:09:33 dialing manager at 10.128.0.163:46869
2021/04/28 21:09:33 syscalls: 1982
2021/04/28 21:09:33 code coverage: enabled
2021/04/28 21:09:33 comparison tracing: enabled
2021/04/28 21:09:33 extra coverage: enabled
2021/04/28 21:09:33 setuid sandbox: enabled
2021/04/28 21:09:33 namespace sandbox: enabled
2021/04/28 21:09:33 Android sandbox: enabled
2021/04/28 21:09:33 fault injection: enabled
2021/04/28 21:09:33 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2021/04/28 21:09:33 net packet injection: /dev/net/tun does not exist
2021/04/28 21:09:33 net device setup: enabled
2021/04/28 21:09:33 concurrency sanitizer: enabled
2021/04/28 21:09:33 devlink PCI setup: PCI device 0000:00:10.0 is not available
2021/04/28 21:09:33 USB emulation: /dev/raw-gadget does not exist
2021/04/28 21:09:33 hci packet injection: /dev/vhci does not exist
2021/04/28 21:09:33 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist
2021/04/28 21:09:33 802.15.4 emulation: /sys/bus/platform/devices/mac802154_hwsim does not exist
2021/04/28 21:09:34 suppressing KCSAN reports in functions: 'step_into' 'ext4_free_inode' 'do_readlinkat' 'ext4_free_inodes_count' 'dd_has_work' 'generic_write_end' '__ext4_new_inode' 'do_sys_poll' 'do_nanosleep' 'blk_mq_dispatch_rq_list' 'lookup_fast' 'ext4_writepages' '__xa_clear_mark' 'kauditd_thread' 'xas_clear_mark' 
2021/04/28 21:09:34 fetching corpus: 0, signal 0/2000 (executing program)
2021/04/28 21:09:34 fetching corpus: 49, signal 11962/15627 (executing program)
[   18.249582][ T1732] ==================================================================
[   18.250901][ T1732] BUG: KCSAN: data-race in complete_signal / futex_wait_queue_me
[   18.255163][ T1732] 
[   18.255530][ T1732] write to 0xffff888102e050ec of 4 bytes by task 1727 on cpu 1:
[   18.256603][ T1732]  futex_wait_queue_me+0x198/0x260
[   18.257324][ T1732]  futex_wait+0x143/0x430
[   18.257961][ T1732]  do_futex+0x9e8/0x1e10
[   18.258661][ T1732]  __se_sys_futex+0x2a8/0x390
[   18.259349][ T1732]  __x64_sys_futex+0x74/0x80
[   18.260069][ T1732]  do_syscall_64+0x4a/0x90
[   18.260716][ T1732]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   18.261563][ T1732] 
[   18.262000][ T1732] read to 0xffff888102e050ec of 4 bytes by task 1732 on cpu 0:
[   18.263563][ T1732]  complete_signal+0x7c/0x600
[   18.264249][ T1732]  __send_signal+0x680/0x760
[   18.265044][ T1732]  send_signal+0x38e/0x3d0
[   18.265810][ T1732]  do_send_specific+0x13d/0x1c0
[   18.266805][ T1732]  __x64_sys_tgkill+0x108/0x140
[   18.267593][ T1732]  do_syscall_64+0x4a/0x90
[   18.268216][ T1732]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   18.269050][ T1732] 
[   18.269440][ T1732] Reported by Kernel Concurrency Sanitizer on:
[   18.274035][ T1732] CPU: 0 PID: 1732 Comm: syz-fuzzer Not tainted 5.12.0-syzkaller #0
[   18.281992][ T1732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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[   18.292034][ T1732] ==================================================================
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2021/04/28 21:09:42 starting 6 fuzzer processes
21:09:42 executing program 0:
mkdir(&(0x7f0000000280)='./file0\x00', 0x0)
mount(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000140)='cpuset\x00', 0x0, 0x0)
r0 = open(&(0x7f0000000080)='./file0\x00', 0x0, 0x0)
r1 = openat$cgroup_int(r0, &(0x7f00000002c0)='cpuset.sched_load_balance\x00', 0x2, 0x0)
r2 = dup3(r1, r0, 0x0)
open_by_handle_at(r2, &(0x7f00000001c0)=@ceph_nfs_confh={0x10, 0x2, {0xc}}, 0x600)

21:09:42 executing program 1:
rt_sigprocmask(0x0, &(0x7f0000000200)={[0xfffffffffffffffd]}, 0x0, 0x8)
setrlimit(0x1, &(0x7f0000000000))
r0 = memfd_create(&(0x7f0000000100)='\x9d#\x00\x00\x00\xa7?3\xef\xc6\xd1\xa6#\r\x83y\xf3\xb2\xe6b\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\x7f\x17\x94$^\xe1Ob\xe1', 0x4)
r1 = memfd_create(&(0x7f0000000100)='\x9d#\x00\x00\x00\xa7?3\xef\xc6\xd1\xa6#\r\x83y\xf3\xb2\xe6b\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\x7f\x17\x94$^\xe1Ob\xe1', 0x0)
fallocate(r1, 0x0, 0x0, 0x5)
fallocate(r0, 0x0, 0x0, 0x5)

21:09:42 executing program 5:
r0 = syz_open_dev$loop(&(0x7f0000000000), 0x7, 0x0)
r1 = syz_open_dev$loop(&(0x7f0000000040), 0x0, 0x0)
ioctl$LOOP_CHANGE_FD(r0, 0x4c06, r1)

21:09:42 executing program 2:
r0 = io_uring_setup(0x43da, &(0x7f0000001680))
io_uring_register$IORING_REGISTER_BUFFERS(r0, 0x0, &(0x7f0000000180)=[{&(0x7f00000002c0)=""/4096, 0x1000}, {}], 0x2)

21:09:42 executing program 3:
unshare(0x8000400)
unshare(0x400)

21:09:42 executing program 4:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000100)={<r0=>0xffffffffffffffff})
io_setup(0x2, &(0x7f0000000140)=<r1=>0x0)
io_submit(r1, 0x1e09328e, &(0x7f0000000040)=[&(0x7f0000000000)={0x2, 0x0, 0x0, 0x0, 0x0, r0, 0x0, 0x12f, 0x7fffffffffffffff}])

[   26.708607][   T25] audit: type=1400 audit(1619644182.951:8): avc:  denied  { execmem } for  pid=1742 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[   26.954545][ T1748] cgroup: Unknown subsys name 'perf_event'
[   26.955721][ T1749] cgroup: Unknown subsys name 'perf_event'
[   26.969314][ T1748] cgroup: Unknown subsys name 'net_cls'
[   26.975928][ T1750] cgroup: Unknown subsys name 'perf_event'
[   26.981056][ T1751] cgroup: Unknown subsys name 'perf_event'
[   26.981890][ T1750] cgroup: Unknown subsys name 'net_cls'
[   26.991450][ T1753] cgroup: Unknown subsys name 'perf_event'
[   26.994591][ T1752] cgroup: Unknown subsys name 'perf_event'
[   26.999251][ T1751] cgroup: Unknown subsys name 'net_cls'
[   27.005409][ T1749] cgroup: Unknown subsys name 'net_cls'
[   27.010665][ T1753] cgroup: Unknown subsys name 'net_cls'
[   27.018103][ T1752] cgroup: Unknown subsys name 'net_cls'