Warning: Permanently added '10.128.10.16' (ECDSA) to the list of known hosts.
2021/04/18 09:43:41 fuzzer started
2021/04/18 09:43:41 dialing manager at 10.128.0.163:45911
2021/04/18 09:43:42 syscalls: 1982
2021/04/18 09:43:42 code coverage: enabled
2021/04/18 09:43:42 comparison tracing: enabled
2021/04/18 09:43:42 extra coverage: enabled
2021/04/18 09:43:42 setuid sandbox: enabled
2021/04/18 09:43:42 namespace sandbox: enabled
2021/04/18 09:43:42 Android sandbox: enabled
2021/04/18 09:43:42 fault injection: enabled
2021/04/18 09:43:42 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2021/04/18 09:43:42 net packet injection: /dev/net/tun does not exist
2021/04/18 09:43:42 net device setup: enabled
2021/04/18 09:43:42 concurrency sanitizer: enabled
2021/04/18 09:43:42 devlink PCI setup: PCI device 0000:00:10.0 is not available
2021/04/18 09:43:42 USB emulation: /dev/raw-gadget does not exist
2021/04/18 09:43:42 hci packet injection: /dev/vhci does not exist
2021/04/18 09:43:42 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist
2021/04/18 09:43:42 802.15.4 emulation: /sys/bus/platform/devices/mac802154_hwsim does not exist
2021/04/18 09:43:43 suppressing KCSAN reports in functions: 'blk_mq_dispatch_rq_list' 'lookup_fast' '__mark_inode_dirty' 'audit_log_start' 'ext4_writepages' 'n_tty_receive_buf_common' 'ext4_free_inodes_count' 'blk_mq_sched_dispatch_requests' 'do_signal_stop' 'ext4_free_inode' 'do_sys_poll' 'do_nanosleep' 'blk_mq_rq_ctx_init' 'dd_has_work' 'complete_signal' 'do_readlinkat' 'generic_write_end' 'fast_dput' '__ext4_new_inode' '__xa_clear_mark' 'ext4_write_end' 'kauditd_thread' 'step_into' 
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[   20.134315][ T1749] ==================================================================
[   20.135759][ T1749] BUG: KCSAN: data-race in __send_signal / futex_wait_queue_me
[   20.136954][ T1749] 
[   20.137309][ T1749] write to 0xffff888100af902c of 4 bytes by task 1753 on cpu 1:
[   20.138408][ T1749]  futex_wait_queue_me+0x198/0x260
[   20.139179][ T1749]  futex_wait+0x143/0x430
[   20.139863][ T1749]  do_futex+0x9e8/0x1e10
[   20.140639][ T1749]  __se_sys_futex+0x2a8/0x390
[   20.141318][ T1749]  __x64_sys_futex+0x74/0x80
[   20.142057][ T1749]  do_syscall_64+0x34/0x50
[   20.142727][ T1749]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   20.143651][ T1749] 
[   20.144067][ T1749] read to 0xffff888100af902c of 4 bytes by task 1749 on cpu 0:
[   20.145252][ T1749]  __send_signal+0x27f/0x760
[   20.145905][ T1749]  send_signal+0x38e/0x3d0
[   20.146578][ T1749]  do_send_specific+0x13d/0x1c0
[   20.147382][ T1749]  __x64_sys_tgkill+0x108/0x140
[   20.148095][ T1749]  do_syscall_64+0x34/0x50
[   20.148715][ T1749]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   20.149585][ T1749] 
[   20.149956][ T1749] Reported by Kernel Concurrency Sanitizer on:
[   20.150813][ T1749] CPU: 0 PID: 1749 Comm: syz-fuzzer Not tainted 5.12.0-rc7-syzkaller #0
[   20.152071][ T1749] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   20.153430][ T1749] ==================================================================
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2021/04/18 09:43:51 starting 6 fuzzer processes
09:43:51 executing program 0:
openat(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/exe\x00', 0x4200, 0x0)

09:43:51 executing program 1:
clone(0x100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff)
r0 = gettid()
wait4(0x0, 0x0, 0x40000000, 0x0)
vmsplice(0xffffffffffffffff, &(0x7f00000000c0)=[{0x0}, {0x0}, {0x0}, {&(0x7f0000000300)="82bb7102cc6509f63760ce03f12c2baf577e6f0503c9ca91e9a868377ce26dc445a7443fdcde8856729a952b000000000000000000000093d5b8c2fc903c2b54706c05e4cb2e2875107608f9143f299d8e3f78f4bf076484885fd4089cb084607435b77c7f44cf0783279a49b3d50000955b16e77f57966d4ba7560f29500352543b498fccba20bcae2b6f577b36b79f72f77e153f55e4fa6ad43af0d450a800800baabf84ab4350874b05f4635c7449bac4383622ae4da09326e51bc3130b44a9df8704df656b60912f30fe712696c1a9451f1c01bc41790b", 0xd9}], 0x4, 0x0)
ptrace$setopts(0x4206, r0, 0x0, 0x5)
tkill(r0, 0x36)
ptrace$cont(0x18, r0, 0x0, 0x0)
sendmsg$NL802154_CMD_DEL_SEC_DEVKEY(0xffffffffffffffff, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000000c0)={0x34, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_SEC_DEVKEY={0xc, 0x24, 0x0, 0x1, [@NL802154_DEVKEY_ATTR_FRAME_COUNTER={0x8}]}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}]}, 0x34}}, 0x0)
sendmsg$inet(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)=[{&(0x7f0000000080)="4dc3", 0x2}], 0x1}, 0x0)
ptrace$setregs(0xd, r0, 0x0, &(0x7f0000000080))
exit_group(0x0)

09:43:51 executing program 5:
getgroups(0x2, &(0x7f00000000c0)=[0xee00, <r0=>0xffffffffffffffff])
syz_mount_image$msdos(&(0x7f0000000100)='msdos\x00', &(0x7f0000000080)='./file0\x00', 0x0, 0x0, &(0x7f0000000240), 0x0, &(0x7f0000000040)={[{@fat=@gid={'gid', 0x3d, r0}}]})

09:43:51 executing program 2:
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$procfs(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sysvipc/sem\x00', 0x0, 0x0)
preadv2(r1, &(0x7f0000000000)=[{&(0x7f0000000080)=""/4100, 0x1004}], 0x1, 0x0, 0x0, 0x0)

09:43:51 executing program 3:
r0 = socket$inet_udp(0x2, 0x2, 0x0)
setsockopt$inet_buf(r0, 0x0, 0x11, 0x0, 0x0)

09:43:51 executing program 4:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x10000000013, &(0x7f0000d06000)=0x1, 0x4)
connect$inet(r0, &(0x7f0000000200)={0x2, 0x0, @remote}, 0x10)
setsockopt$inet_tcp_TCP_REPAIR(r0, 0x6, 0x1e, &(0x7f0000000100), 0x4)

[   27.602290][   T25] audit: type=1400 audit(1618739031.183:8): avc:  denied  { execmem } for  pid=1761 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[   27.718488][ T1769] cgroup: Unknown subsys name 'perf_event'
[   27.737854][ T1769] cgroup: Unknown subsys name 'net_cls'
[   27.790054][ T1772] cgroup: Unknown subsys name 'perf_event'
[   27.793416][ T1771] cgroup: Unknown subsys name 'perf_event'
[   27.807220][ T1772] cgroup: Unknown subsys name 'net_cls'
[   27.817982][ T1771] cgroup: Unknown subsys name 'net_cls'
[   27.819334][ T1774] cgroup: Unknown subsys name 'perf_event'
[   27.828384][ T1776] cgroup: Unknown subsys name 'perf_event'
[   27.830013][ T1774] cgroup: Unknown subsys name 'net_cls'
[   27.835273][ T1776] cgroup: Unknown subsys name 'net_cls'
[   27.841519][ T1775] cgroup: Unknown subsys name 'perf_event'
[   27.852128][ T1775] cgroup: Unknown subsys name 'net_cls'