Warning: Permanently added '10.128.1.38' (ECDSA) to the list of known hosts.
2021/05/20 11:58:24 fuzzer started
2021/05/20 11:58:24 dialing manager at 10.128.0.163:43699
2021/05/20 11:58:25 syscalls: 1997
2021/05/20 11:58:25 code coverage: enabled
2021/05/20 11:58:25 comparison tracing: enabled
2021/05/20 11:58:25 extra coverage: enabled
2021/05/20 11:58:25 setuid sandbox: enabled
2021/05/20 11:58:25 namespace sandbox: enabled
2021/05/20 11:58:25 Android sandbox: enabled
2021/05/20 11:58:25 fault injection: enabled
2021/05/20 11:58:25 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2021/05/20 11:58:25 net packet injection: /dev/net/tun does not exist
2021/05/20 11:58:25 net device setup: enabled
2021/05/20 11:58:25 concurrency sanitizer: enabled
2021/05/20 11:58:25 devlink PCI setup: PCI device 0000:00:10.0 is not available
2021/05/20 11:58:25 USB emulation: /dev/raw-gadget does not exist
2021/05/20 11:58:25 hci packet injection: /dev/vhci does not exist
2021/05/20 11:58:25 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist
2021/05/20 11:58:25 802.15.4 emulation: /sys/bus/platform/devices/mac802154_hwsim does not exist
2021/05/20 11:58:25 suppressing KCSAN reports in functions: 'blk_mq_dispatch_rq_list' 'dd_has_work' 'tick_nohz_next_event' 'audit_log_start' '__xa_clear_mark' '__ext4_new_inode' '_find_next_bit' 'blk_mq_sched_dispatch_requests' 'kauditd_thread' 
2021/05/20 11:58:25 fetching corpus: 0, signal 0/2000 (executing program)
[   20.761278][ T1746] ==================================================================
[   20.764188][ T1746] BUG: KCSAN: data-race in __send_signal / futex_wait_queue_me
[   20.767186][ T1746] 
[   20.767908][ T1746] write to 0xffff8881047b90ac of 4 bytes by task 1749 on cpu 0:
[   20.769830][ T1746]  futex_wait_queue_me+0x198/0x260
[   20.770912][ T1746]  futex_wait+0x143/0x430
[   20.771880][ T1746]  do_futex+0x9d8/0x1ee0
[   20.772580][ T1746]  __se_sys_futex+0x21c/0x380
[   20.773581][ T1746]  __x64_sys_futex+0x74/0x80
[   20.774466][ T1746]  do_syscall_64+0x4a/0x90
[   20.775226][ T1746]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   20.776700][ T1746] 
[   20.777120][ T1746] read to 0xffff8881047b90ac of 4 bytes by task 1746 on cpu 1:
[   20.778756][ T1746]  __send_signal+0x282/0x760
[   20.779784][ T1746]  send_signal+0x281/0x390
[   20.780533][ T1746]  do_send_specific+0x13d/0x1c0
[   20.782351][ T1746]  __x64_sys_tgkill+0x108/0x140
[   20.787182][ T1746]  do_syscall_64+0x4a/0x90
[   20.791576][ T1746]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   20.797444][ T1746] 
[   20.799758][ T1746] Reported by Kernel Concurrency Sanitizer on:
2021/05/20 11:58:25 fetching corpus: 50, signal 18895/22288 (executing program)
[   20.805892][ T1746] CPU: 1 PID: 1746 Comm: syz-fuzzer Not tainted 5.13.0-rc2-syzkaller #0
[   20.814188][ T1746] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   20.824217][ T1746] ==================================================================
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2021/05/20 11:58:33 starting 6 fuzzer processes
11:58:33 executing program 0:
perf_event_open(&(0x7f0000000240)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x9, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0)
r0 = syz_open_dev$sg(&(0x7f0000000000), 0x0, 0x5)
write$binfmt_misc(r0, &(0x7f0000000100)=ANY=[@ANYBLOB="5300000044a6aeabc8161520000000000000000700fff64017db98"], 0x259)
openat$zero(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = gettid()
process_vm_readv(r1, &(0x7f00000022c0)=[{&(0x7f0000000080)=""/44, 0x2c}], 0x226, &(0x7f0000003840)=[{&(0x7f0000002300)=""/115, 0x7ffff000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}], 0x9, 0x0)
socket$inet6_tcp(0xa, 0x1, 0x0)

11:58:33 executing program 1:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800007, 0x12, r0, 0x0)
preadv(r0, &(0x7f0000000280), 0x18, 0xd9f, 0x0)
r1 = perf_event_open(&(0x7f0000000040)={0x1, 0x80, 0x2, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
r2 = perf_event_open(&(0x7f000001d000)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
mmap(&(0x7f0000ffd000/0x1000)=nil, 0x1000, 0x0, 0x11, r2, 0x0)
ioctl$PERF_EVENT_IOC_SET_OUTPUT(r1, 0x2405, r2)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000200)='schedstat\x00')

11:58:33 executing program 5:
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)
syz_mount_image$ext4(&(0x7f0000000000)='ext4\x00', &(0x7f0000000100)='./file0\x00', 0x0, 0x1, &(0x7f0000000200)=[{&(0x7f0000010000)="200000080000000006000000600000000f000000000000000100000001000000004000000040000020000000d2f4655fd2f4655f0100ffff53ef", 0x3a, 0x400}], 0x0, &(0x7f00000003c0))

11:58:33 executing program 2:
r0 = inotify_init1(0x0)
r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x2, 0x12, r1, 0x0)
preadv(r1, &(0x7f0000000280), 0x18, 0xd9f, 0x0)
fcntl$setstatus(r0, 0x4, 0x72109c5fef5d34d3)
fcntl$setstatus(r0, 0x4, 0x0)

11:58:33 executing program 3:
syz_mount_image$ext4(&(0x7f0000000000)='ext3\x00', &(0x7f0000000100)='./file0\x00', 0x0, 0x1, &(0x7f0000000280)=[{&(0x7f0000000300)="200000004000000003000000300000000f000000000000000200000002000000008000000080000020000000dcf4655fdcf4655f0100ffff53ef0100c83fe5f50800655f000000000000000001000000001000000b00000000061c5ffd65a99d398d2f6840d39e4eff27052aea927a90acab68f5248e445153e3b327124dbd14aaf6a615f3f50067e101948f8371d2ff80447545c3732bbc3840dd27c5b273125405ff8deb90742906700ae6d067722133594ca2da5f3cdd1babb7315279f1fa1304eb4f03a1cfe6e1074773a751e0f3ffe5d345167a953b9d0a3457734ca2bc9261aacd0dae7be1ffe092b1e202466e7921f05a0a3f1c6ba92831687ff5f214f1", 0x101, 0x400}], 0x0, &(0x7f0000000180))

11:58:33 executing program 4:
seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000001400)={0x1, &(0x7f00000013c0)=[{0x6, 0x0, 0x0, 0x7fffffff}]})
r0 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800003, 0x12, r0, 0x0)
preadv(r0, &(0x7f0000000280), 0x18, 0xd9f, 0x0)
seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000001400)={0x1, &(0x7f00000013c0)=[{0x6, 0x0, 0x0, 0x7fffffff}]})
seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0xc, &(0x7f0000001400)={0x1, &(0x7f00000013c0)=[{0x6}]})

[   28.777783][   T25] audit: type=1400 audit(1621511913.815:8): avc:  denied  { execmem } for  pid=1760 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[   28.878227][ T1766] cgroup: Unknown subsys name 'perf_event'
[   28.889346][ T1767] cgroup: Unknown subsys name 'perf_event'
[   28.895713][ T1767] cgroup: Unknown subsys name 'net_cls'
[   28.899933][ T1766] cgroup: Unknown subsys name 'net_cls'
[   28.939606][ T1770] cgroup: Unknown subsys name 'perf_event'
[   28.945571][ T1770] cgroup: Unknown subsys name 'net_cls'
[   28.948692][ T1771] cgroup: Unknown subsys name 'perf_event'
[   28.957378][ T1772] cgroup: Unknown subsys name 'perf_event'
[   28.958734][ T1771] cgroup: Unknown subsys name 'net_cls'
[   28.965765][ T1772] cgroup: Unknown subsys name 'net_cls'
[   28.969510][ T1773] cgroup: Unknown subsys name 'perf_event'
[   28.980315][ T1773] cgroup: Unknown subsys name 'net_cls'