Warning: Permanently added '10.128.0.221' (ECDSA) to the list of known hosts.
2021/05/26 10:16:22 fuzzer started
2021/05/26 10:16:22 dialing manager at 10.128.0.163:33501
2021/05/26 10:16:22 syscalls: 1997
2021/05/26 10:16:22 code coverage: enabled
2021/05/26 10:16:22 comparison tracing: enabled
2021/05/26 10:16:22 extra coverage: enabled
2021/05/26 10:16:22 setuid sandbox: enabled
2021/05/26 10:16:22 namespace sandbox: enabled
2021/05/26 10:16:22 Android sandbox: enabled
2021/05/26 10:16:22 fault injection: enabled
2021/05/26 10:16:22 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2021/05/26 10:16:22 net packet injection: /dev/net/tun does not exist
2021/05/26 10:16:22 net device setup: enabled
2021/05/26 10:16:22 concurrency sanitizer: enabled
2021/05/26 10:16:22 devlink PCI setup: PCI device 0000:00:10.0 is not available
2021/05/26 10:16:22 USB emulation: /dev/raw-gadget does not exist
2021/05/26 10:16:22 hci packet injection: /dev/vhci does not exist
2021/05/26 10:16:22 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist
2021/05/26 10:16:22 802.15.4 emulation: /sys/bus/platform/devices/mac802154_hwsim does not exist
2021/05/26 10:16:23 suppressing KCSAN reports in functions: 'lookup_fast' 'shmem_unlink' 'ext4_free_inodes_count' '__xa_clear_mark' 'blk_mq_rq_ctx_init' 'ext4_writepages' 'blk_mq_sched_dispatch_requests' 'generic_write_end' 'xas_clear_mark' 'step_into' '_find_next_bit' '__xa_set_mark' 'vfs_readlink' 'blk_mq_dispatch_rq_list' 'dd_has_work' 'n_tty_receive_buf_common' 'do_signal_stop' 'do_select' 'do_sys_poll' 
2021/05/26 10:16:23 fetching corpus: 0, signal 0/2000 (executing program)
2021/05/26 10:16:23 fetching corpus: 45, signal 15027/18618 (executing program)
[   19.211502][ T1732] ==================================================================
[   19.212934][ T1732] BUG: KCSAN: data-race in __send_signal / futex_wait_queue_me
[   19.214099][ T1732] 
[   19.214452][ T1732] write to 0xffff8881046c20ac of 4 bytes by task 1730 on cpu 0:
[   19.215691][ T1732]  futex_wait_queue_me+0x198/0x260
[   19.216770][ T1732]  futex_wait+0x143/0x430
[   19.217415][ T1732]  do_futex+0x9d8/0x1ee0
[   19.218034][ T1732]  __se_sys_futex+0x21c/0x380
[   19.218989][ T1732]  __x64_sys_futex+0x74/0x80
[   19.219856][ T1732]  do_syscall_64+0x4a/0x90
[   19.220767][ T1732]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   19.221739][ T1732] 
[   19.222168][ T1732] read to 0xffff8881046c20ac of 4 bytes by task 1732 on cpu 1:
[   19.223331][ T1732]  __send_signal+0x282/0x760
[   19.224159][ T1732]  send_signal+0x281/0x390
[   19.224881][ T1732]  do_send_specific+0x13d/0x1c0
[   19.225706][ T1732]  __x64_sys_tgkill+0x108/0x140
[   19.226407][ T1732]  do_syscall_64+0x4a/0x90
[   19.227162][ T1732]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   19.228257][ T1732] 
[   19.228777][ T1732] Reported by Kernel Concurrency Sanitizer on:
[   19.229786][ T1732] CPU: 1 PID: 1732 Comm: syz-fuzzer Not tainted 5.13.0-rc3-syzkaller #0
[   19.231032][ T1732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   19.238890][ T1732] ==================================================================
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2021/05/26 10:16:28 starting 6 fuzzer processes
10:16:28 executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800003, 0x12, r0, 0x0)
preadv(r0, &(0x7f0000000280), 0x18, 0xd9f, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
r2 = creat(&(0x7f0000000080)='./bus\x00', 0x0)
r3 = open(&(0x7f0000000000)='./bus\x00', 0x0, 0x0)
ioctl$FS_IOC_SETFLAGS(r3, 0x40086602, &(0x7f00000000c0)=0x8)
sendfile(r2, r1, 0x0, 0x7fffeffd)
r4 = creat(&(0x7f0000000040)='./bus\x00', 0x0)
r5 = open(&(0x7f0000000000)='./bus\x00', 0x0, 0x0)
fcntl$setstatus(r4, 0x4, 0x4800)
sendfile(r4, r5, 0x0, 0x8400fffffffa)

10:16:28 executing program 1:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
setsockopt$inet6_tcp_int(r0, 0x6, 0x1e, &(0x7f0000000180)=0x400000001, 0x80)
setsockopt$inet6_tcp_int(r0, 0x6, 0x2000000000000022, &(0x7f0000000140)=0x1, 0x4)
ioctl$int_in(r0, 0x5421, &(0x7f00000001c0)=0x9)
connect$inet6(r0, &(0x7f0000000540)={0xa, 0x0, 0x0, @loopback}, 0x1c)
io_setup(0xb, &(0x7f0000000100)=<r1=>0x0)
io_submit(r1, 0x1, &(0x7f0000000040)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x1, 0x0, r0, 0x0, 0x2}])

10:16:28 executing program 5:
unshare(0x400)
r0 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a)
setsockopt$inet6_icmp_ICMP_FILTER(r0, 0x3a, 0x19, 0x0, 0xf)

10:16:28 executing program 2:
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x100000a, 0x8031, 0xffffffffffffffff, 0x0)
socketpair$unix(0x1, 0x80000000001, 0x0, &(0x7f0000000500)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
write$binfmt_elf64(r0, &(0x7f0000000380)=ANY=[], 0x8724)
write$binfmt_misc(r0, &(0x7f00000000c0)=ANY=[], 0x7fffffff)
recvfrom(r1, &(0x7f0000000100)=""/184, 0xffffffe8, 0x40012500, 0x0, 0xffffffffffffff49)

10:16:28 executing program 3:
ioprio_get$pid(0x2, 0xffffffffffffffff)

10:16:28 executing program 4:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
getsockopt$IPT_SO_GET_REVISION_MATCH(r0, 0x0, 0x42, &(0x7f0000000000)={'icmp\x00'}, &(0x7f0000000040)=0x1e)

[   24.314816][   T25] audit: type=1400 audit(1622024188.624:8): 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
[   24.399475][ T1748] cgroup: Unknown subsys name 'perf_event'
[   24.405990][ T1748] cgroup: Unknown subsys name 'net_cls'
[   24.447857][ T1749] cgroup: Unknown subsys name 'perf_event'
[   24.453905][ T1749] cgroup: Unknown subsys name 'net_cls'
[   24.460370][ T1751] cgroup: Unknown subsys name 'perf_event'
[   24.463250][ T1752] cgroup: Unknown subsys name 'perf_event'
[   24.466275][ T1751] cgroup: Unknown subsys name 'net_cls'
[   24.472585][ T1752] cgroup: Unknown subsys name 'net_cls'
[   24.479795][ T1753] cgroup: Unknown subsys name 'perf_event'
[   24.485668][ T1754] cgroup: Unknown subsys name 'perf_event'
[   24.490668][ T1753] cgroup: Unknown subsys name 'net_cls'
[   24.497254][ T1754] cgroup: Unknown subsys name 'net_cls'
10:16:32 executing program 3:
ioprio_get$pid(0x2, 0xffffffffffffffff)

10:16:32 executing program 3:
ioprio_get$pid(0x2, 0xffffffffffffffff)

10:16:32 executing program 5:
unshare(0x400)
r0 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a)
setsockopt$inet6_icmp_ICMP_FILTER(r0, 0x3a, 0x19, 0x0, 0xf)

10:16:32 executing program 1:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
setsockopt$inet6_tcp_int(r0, 0x6, 0x1e, &(0x7f0000000180)=0x400000001, 0x80)
setsockopt$inet6_tcp_int(r0, 0x6, 0x2000000000000022, &(0x7f0000000140)=0x1, 0x4)
ioctl$int_in(r0, 0x5421, &(0x7f00000001c0)=0x9)
connect$inet6(r0, &(0x7f0000000540)={0xa, 0x0, 0x0, @loopback}, 0x1c)
io_setup(0xb, &(0x7f0000000100)=<r1=>0x0)
io_submit(r1, 0x1, &(0x7f0000000040)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x1, 0x0, r0, 0x0, 0x2}])

10:16:32 executing program 5:
unshare(0x400)
r0 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a)
setsockopt$inet6_icmp_ICMP_FILTER(r0, 0x3a, 0x19, 0x0, 0xf)

10:16:32 executing program 3:
ioprio_get$pid(0x2, 0xffffffffffffffff)

10:16:33 executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800003, 0x12, r0, 0x0)
preadv(r0, &(0x7f0000000280), 0x18, 0xd9f, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
r2 = creat(&(0x7f0000000080)='./bus\x00', 0x0)
r3 = open(&(0x7f0000000000)='./bus\x00', 0x0, 0x0)
ioctl$FS_IOC_SETFLAGS(r3, 0x40086602, &(0x7f00000000c0)=0x8)
sendfile(r2, r1, 0x0, 0x7fffeffd)
r4 = creat(&(0x7f0000000040)='./bus\x00', 0x0)
r5 = open(&(0x7f0000000000)='./bus\x00', 0x0, 0x0)
fcntl$setstatus(r4, 0x4, 0x4800)
sendfile(r4, r5, 0x0, 0x8400fffffffa)

10:16:33 executing program 4:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
getsockopt$IPT_SO_GET_REVISION_MATCH(r0, 0x0, 0x42, &(0x7f0000000000)={'icmp\x00'}, &(0x7f0000000040)=0x1e)

10:16:33 executing program 1:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
setsockopt$inet6_tcp_int(r0, 0x6, 0x1e, &(0x7f0000000180)=0x400000001, 0x80)
setsockopt$inet6_tcp_int(r0, 0x6, 0x2000000000000022, &(0x7f0000000140)=0x1, 0x4)
ioctl$int_in(r0, 0x5421, &(0x7f00000001c0)=0x9)
connect$inet6(r0, &(0x7f0000000540)={0xa, 0x0, 0x0, @loopback}, 0x1c)
io_setup(0xb, &(0x7f0000000100)=<r1=>0x0)
io_submit(r1, 0x1, &(0x7f0000000040)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x1, 0x0, r0, 0x0, 0x2}])

10:16:33 executing program 2:
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x100000a, 0x8031, 0xffffffffffffffff, 0x0)
socketpair$unix(0x1, 0x80000000001, 0x0, &(0x7f0000000500)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
write$binfmt_elf64(r0, &(0x7f0000000380)=ANY=[], 0x8724)
write$binfmt_misc(r0, &(0x7f00000000c0)=ANY=[], 0x7fffffff)
recvfrom(r1, &(0x7f0000000100)=""/184, 0xffffffe8, 0x40012500, 0x0, 0xffffffffffffff49)

10:16:33 executing program 3:
r0 = socket$inet6_udp(0xa, 0x2, 0x0)
sendmsg$inet6(r0, &(0x7f00000014c0)={&(0x7f0000000000)={0xa, 0x4e22, 0x0, @mcast2={0xff, 0x3}}, 0x1c, 0x0}, 0x0)

10:16:33 executing program 5:
unshare(0x400)
r0 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a)
setsockopt$inet6_icmp_ICMP_FILTER(r0, 0x3a, 0x19, 0x0, 0xf)

10:16:33 executing program 4:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
getsockopt$IPT_SO_GET_REVISION_MATCH(r0, 0x0, 0x42, &(0x7f0000000000)={'icmp\x00'}, &(0x7f0000000040)=0x1e)

10:16:33 executing program 1:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
setsockopt$inet6_tcp_int(r0, 0x6, 0x1e, &(0x7f0000000180)=0x400000001, 0x80)
setsockopt$inet6_tcp_int(r0, 0x6, 0x2000000000000022, &(0x7f0000000140)=0x1, 0x4)
ioctl$int_in(r0, 0x5421, &(0x7f00000001c0)=0x9)
connect$inet6(r0, &(0x7f0000000540)={0xa, 0x0, 0x0, @loopback}, 0x1c)
io_setup(0xb, &(0x7f0000000100)=<r1=>0x0)
io_submit(r1, 0x1, &(0x7f0000000040)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x1, 0x0, r0, 0x0, 0x2}])

10:16:33 executing program 3:
r0 = socket$inet6_udp(0xa, 0x2, 0x0)
sendmsg$inet6(r0, &(0x7f00000014c0)={&(0x7f0000000000)={0xa, 0x4e22, 0x0, @mcast2={0xff, 0x3}}, 0x1c, 0x0}, 0x0)

10:16:33 executing program 4:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
getsockopt$IPT_SO_GET_REVISION_MATCH(r0, 0x0, 0x42, &(0x7f0000000000)={'icmp\x00'}, &(0x7f0000000040)=0x1e)

10:16:33 executing program 5:
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x100000a, 0x8031, 0xffffffffffffffff, 0x0)
socketpair$unix(0x1, 0x80000000001, 0x0, &(0x7f0000000500)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
write$binfmt_elf64(r0, &(0x7f0000000380)=ANY=[], 0x8724)
write$binfmt_misc(r0, &(0x7f00000000c0)=ANY=[], 0x7fffffff)
recvfrom(r1, &(0x7f0000000100)=""/184, 0xffffffe8, 0x40012500, 0x0, 0xffffffffffffff49)

10:16:33 executing program 3:
r0 = socket$inet6_udp(0xa, 0x2, 0x0)
sendmsg$inet6(r0, &(0x7f00000014c0)={&(0x7f0000000000)={0xa, 0x4e22, 0x0, @mcast2={0xff, 0x3}}, 0x1c, 0x0}, 0x0)

10:16:33 executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800003, 0x12, r0, 0x0)
preadv(r0, &(0x7f0000000280), 0x18, 0xd9f, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
r2 = creat(&(0x7f0000000080)='./bus\x00', 0x0)
r3 = open(&(0x7f0000000000)='./bus\x00', 0x0, 0x0)
ioctl$FS_IOC_SETFLAGS(r3, 0x40086602, &(0x7f00000000c0)=0x8)
sendfile(r2, r1, 0x0, 0x7fffeffd)
r4 = creat(&(0x7f0000000040)='./bus\x00', 0x0)
r5 = open(&(0x7f0000000000)='./bus\x00', 0x0, 0x0)
fcntl$setstatus(r4, 0x4, 0x4800)
sendfile(r4, r5, 0x0, 0x8400fffffffa)

10:16:33 executing program 4:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800003, 0x12, r0, 0x0)
preadv(r0, &(0x7f0000000280), 0x18, 0xd9f, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
r2 = creat(&(0x7f0000000080)='./bus\x00', 0x0)
r3 = open(&(0x7f0000000000)='./bus\x00', 0x0, 0x0)
ioctl$FS_IOC_SETFLAGS(r3, 0x40086602, &(0x7f00000000c0)=0x8)
sendfile(r2, r1, 0x0, 0x7fffeffd)
r4 = creat(&(0x7f0000000040)='./bus\x00', 0x0)
r5 = open(&(0x7f0000000000)='./bus\x00', 0x0, 0x0)
fcntl$setstatus(r4, 0x4, 0x4800)
sendfile(r4, r5, 0x0, 0x8400fffffffa)

10:16:33 executing program 1:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800003, 0x12, r0, 0x0)
preadv(r0, &(0x7f0000000280), 0x18, 0xd9f, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
r2 = creat(&(0x7f0000000080)='./bus\x00', 0x0)
r3 = open(&(0x7f0000000000)='./bus\x00', 0x0, 0x0)
ioctl$FS_IOC_SETFLAGS(r3, 0x40086602, &(0x7f00000000c0)=0x8)
sendfile(r2, r1, 0x0, 0x7fffeffd)
r4 = creat(&(0x7f0000000040)='./bus\x00', 0x0)
r5 = open(&(0x7f0000000000)='./bus\x00', 0x0, 0x0)
fcntl$setstatus(r4, 0x4, 0x4800)
sendfile(r4, r5, 0x0, 0x8400fffffffa)

10:16:33 executing program 2:
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x100000a, 0x8031, 0xffffffffffffffff, 0x0)
socketpair$unix(0x1, 0x80000000001, 0x0, &(0x7f0000000500)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
write$binfmt_elf64(r0, &(0x7f0000000380)=ANY=[], 0x8724)
write$binfmt_misc(r0, &(0x7f00000000c0)=ANY=[], 0x7fffffff)
recvfrom(r1, &(0x7f0000000100)=""/184, 0xffffffe8, 0x40012500, 0x0, 0xffffffffffffff49)

10:16:33 executing program 3:
r0 = socket$inet6_udp(0xa, 0x2, 0x0)
sendmsg$inet6(r0, &(0x7f00000014c0)={&(0x7f0000000000)={0xa, 0x4e22, 0x0, @mcast2={0xff, 0x3}}, 0x1c, 0x0}, 0x0)

10:16:33 executing program 3:
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x2)
clone(0x100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff)
r0 = gettid()
wait4(0x0, 0x0, 0x80000002, 0x0)
vmsplice(0xffffffffffffffff, &(0x7f00000000c0)=[{0x0}, {0x0}, {0x0}, {&(0x7f0000001a40)="66530700ae897094e7b126b097eaa769be6d28c41bd34e677d114b655ef5f0166391c68f70e44e260f82e8a9bfc92b1055f69a372376", 0x36}], 0x4, 0x0)
ptrace$setopts(0x4206, r0, 0x0, 0x0)
tkill(r0, 0x34)
ptrace$cont(0x18, r0, 0x0, 0x0)
ptrace$setregs(0xd, r0, 0x0, &(0x7f0000000080))
ptrace$cont(0x9, r0, 0x0, 0x0)