Warning: Permanently added '10.128.0.178' (ECDSA) to the list of known hosts.
2021/05/29 16:17:21 fuzzer started
2021/05/29 16:17:21 dialing manager at 10.128.0.163:34759
2021/05/29 16:17:22 syscalls: 1998
2021/05/29 16:17:22 code coverage: enabled
2021/05/29 16:17:22 comparison tracing: enabled
2021/05/29 16:17:22 extra coverage: enabled
2021/05/29 16:17:22 setuid sandbox: enabled
2021/05/29 16:17:22 namespace sandbox: enabled
2021/05/29 16:17:22 Android sandbox: enabled
2021/05/29 16:17:22 fault injection: enabled
2021/05/29 16:17:22 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2021/05/29 16:17:22 net packet injection: /dev/net/tun does not exist
2021/05/29 16:17:22 net device setup: enabled
2021/05/29 16:17:22 concurrency sanitizer: enabled
2021/05/29 16:17:22 devlink PCI setup: PCI device 0000:00:10.0 is not available
2021/05/29 16:17:22 USB emulation: /dev/raw-gadget does not exist
2021/05/29 16:17:22 hci packet injection: /dev/vhci does not exist
2021/05/29 16:17:22 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist
2021/05/29 16:17:22 802.15.4 emulation: /sys/bus/platform/devices/mac802154_hwsim does not exist
2021/05/29 16:17:23 suppressing KCSAN reports in functions: 'blk_mq_dispatch_rq_list' 'do_signal_stop' 'kauditd_thread' 'audit_log_start' 'do_sys_poll' '__ps2_command' 'blk_mq_sched_dispatch_requests' 'exit_mm' '__xa_clear_mark' '_find_next_bit' 'expire_timers' 'complete_signal' 'xas_clear_mark' 'ext4_mb_good_group' 'do_readlinkat' '__mark_inode_dirty' 'step_into' 'blk_mq_rq_ctx_init' '__ext4_new_inode' 'do_nanosleep' 'alloc_pid' 'ext4_free_inodes_count' 'generic_write_end' 'n_tty_receive_buf_common' 'ps2_do_sendbyte' 
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syzkaller login: [   20.677797][ T1744] ==================================================================
[   20.679933][ T1744] BUG: KCSAN: data-race in __send_signal / futex_wait_queue_me
[   20.681204][ T1744] 
[   20.682057][ T1744] write to 0xffff88810038a0ac of 4 bytes by task 1749 on cpu 1:
[   20.683375][ T1744]  futex_wait_queue_me+0x198/0x260
[   20.684264][ T1744]  futex_wait+0x143/0x430
[   20.685123][ T1744]  do_futex+0x9d8/0x1ee0
[   20.685789][ T1744]  __se_sys_futex+0x21c/0x380
[   20.686594][ T1744]  __x64_sys_futex+0x74/0x80
[   20.687295][ T1744]  do_syscall_64+0x4a/0x90
[   20.687952][ T1744]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   20.688927][ T1744] 
[   20.689291][ T1744] read to 0xffff88810038a0ac of 4 bytes by task 1744 on cpu 0:
[   20.690938][ T1744]  __send_signal+0x282/0x760
[   20.691994][ T1744]  send_signal+0x281/0x390
[   20.692707][ T1744]  do_send_specific+0x13d/0x1c0
[   20.693426][ T1744]  __x64_sys_tgkill+0x108/0x140
[   20.694266][ T1744]  do_syscall_64+0x4a/0x90
[   20.695042][ T1744]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   20.696242][ T1744] 
[   20.696580][ T1744] value changed: 0x00404040 -> 0x40404040
[   20.697637][ T1744] 
[   20.699277][ T1744] Reported by Kernel Concurrency Sanitizer on:
[   20.705530][ T1744] CPU: 0 PID: 1744 Comm: syz-fuzzer Not tainted 5.13.0-rc3-syzkaller #0
[   20.714237][ T1744] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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[   20.724285][ T1744] ==================================================================
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2021/05/29 16:17:32 starting 6 fuzzer processes
16:17:32 executing program 5:
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='memory.events\x00', 0x275a, 0x0)
r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='memory.events\x00', 0x100002, 0x0)
write$cgroup_int(r1, &(0x7f0000000180), 0x12)
write$cgroup_int(r0, &(0x7f0000000200), 0xfdef)
ioctl$FS_IOC_RESVSP(r1, 0x40305828, &(0x7f0000000080)={0x0, 0x2, 0x0, 0xffff})
ioctl$FITRIM(r1, 0x40305839, &(0x7f0000000000)={0x0, 0x8001, 0xaaf9})

16:17:32 executing program 0:
creat(&(0x7f0000000280)='./file0\x00', 0x0)
clone(0x100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff)
mount$tmpfs(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f00000000c0), 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="6d706f6c3d7072656665723d94656c617469766578413a302d353a", @ANYRESOCT])

16:17:32 executing program 3:
r0 = socket$packet(0x11, 0x2, 0x300)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800003, 0x12, r1, 0x0)
preadv(r1, &(0x7f0000000280), 0x18, 0xd9f, 0x0)
setsockopt$packet_fanout(r0, 0x107, 0x12, &(0x7f0000000040)={0x0, 0x6}, 0x4)
setsockopt$packet_fanout_data(r0, 0x107, 0x16, &(0x7f0000000100)={0x2, &(0x7f00000000c0)=[{0x28, 0x0, 0x0, 0xfffff000}, {0x6}]}, 0x10)

16:17:32 executing program 1:
r0 = openat$sndseq(0xffffffffffffff9c, &(0x7f0000000000), 0x0)
ioctl$SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS(r0, 0xc0105303, &(0x7f0000000280)={0xffff})

16:17:32 executing program 2:
r0 = openat$procfs(0xffffffffffffff9c, &(0x7f0000000040)='/proc/consoles\x00', 0x0, 0x0)
lseek(r0, 0xfffe00000, 0x0)

16:17:32 executing program 4:
creat(&(0x7f0000000140)='./file0\x00', 0x0)
clone(0x100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff)
mount$9p_tcp(&(0x7f0000000180), &(0x7f00000001c0)='./file0\x00', &(0x7f0000000200), 0x0, &(0x7f0000000600)={'trans=tcp,', {}, 0x2c, {[{@version_L}]}})

[   29.324712][   T22] audit: type=1400 audit(1622305052.671:8): avc:  denied  { execmem } for  pid=1763 comm="syz-executor.5" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[   29.390125][ T1768] cgroup: Unknown subsys name 'perf_event'
[   29.410706][ T1768] cgroup: Unknown subsys name 'net_cls'
[   29.437236][ T1770] cgroup: Unknown subsys name 'perf_event'
[   29.451067][ T1770] cgroup: Unknown subsys name 'net_cls'
[   29.476458][ T1773] cgroup: Unknown subsys name 'perf_event'
[   29.485884][ T1773] cgroup: Unknown subsys name 'net_cls'
[   29.502192][ T1778] cgroup: Unknown subsys name 'perf_event'
[   29.511256][ T1778] cgroup: Unknown subsys name 'net_cls'
[   29.520398][ T1783] cgroup: Unknown subsys name 'perf_event'
[   29.533239][ T1783] cgroup: Unknown subsys name 'net_cls'
[   29.540663][ T1790] cgroup: Unknown subsys name 'perf_event'
[   29.551971][ T1790] cgroup: Unknown subsys name 'net_cls'