./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor177281463

<...>
Warning: Permanently added '10.128.1.60' (ED25519) to the list of known hosts.
execve("./syz-executor177281463", ["./syz-executor177281463"], 0x7fff008b2390 /* 10 vars */) = 0
brk(NULL)                               = 0x555555f59000
brk(0x555555f59d00)                     = 0x555555f59d00
arch_prctl(ARCH_SET_FS, 0x555555f59380) = 0
set_tid_address(0x555555f59650)         = 288
set_robust_list(0x555555f59660, 24)     = 0
rseq(0x555555f59ca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented)
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor177281463", 4096) = 27
getrandom("\xc7\xf5\x6c\x82\x23\xd1\x1a\x4a", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555555f59d00
brk(0x555555f7ad00)                     = 0x555555f7ad00
brk(0x555555f7b000)                     = 0x555555f7b000
mprotect(0x7fbebd68c000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
mkdir("/syzcgroup", 0777)               = 0
mkdir("/syzcgroup/unified", 0777)       = 0
mount("none", "/syzcgroup/unified", "cgroup2", 0, NULL) = 0
chmod("/syzcgroup/unified", 0777)       = 0
openat(AT_FDCWD, "/syzcgroup/unified/cgroup.subtree_control", O_WRONLY) = 3
write(3, "+cpu", 4)                     = 4
write(3, "+io", 3)                      = 3
write(3, "+pids", 5)                    = 5
close(3)                                = 0
mkdir("/syzcgroup/net", 0777)           = 0
mount("none", "/syzcgroup/net", "cgroup", 0, "net") = -1 EINVAL (Invalid argument)
mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio") = 0
[   22.048389][   T24] audit: type=1400 audit(1708601521.410:66): avc:  denied  { execmem } for  pid=288 comm="syz-executor177" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   22.069422][   T24] audit: type=1400 audit(1708601521.440:67): avc:  denied  { mounton } for  pid=288 comm="syz-executor177" path="/syzcgroup/unified" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1
[   22.070950][  T288] cgroup: Unknown subsys name 'net'
umount2("/syzcgroup/net", 0)            = 0
mount("none", "/syzcgroup/net", "cgroup", 0, "devices") = -1 EINVAL (Invalid argument)
mount("none", "/syzcgroup/net", "cgroup", 0, "blkio") = 0
umount2("/syzcgroup/net", 0)            = 0
mount("none", "/syzcgroup/net", "cgroup", 0, "freezer") = 0
umount2("/syzcgroup/net", 0)            = 0
mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,blkio,freezer") = ? ERESTARTNOINTR (To be restarted)
[   22.092535][   T24] audit: type=1400 audit(1708601521.440:68): avc:  denied  { mount } for  pid=288 comm="syz-executor177" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1
[   22.119417][   T24] audit: type=1400 audit(1708601521.460:69): avc:  denied  { unmount } for  pid=288 comm="syz-executor177" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1
[   22.119945][  T288] cgroup: Unknown subsys name 'devices'
mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,blkio,freezer") = ? ERESTARTNOINTR (To be restarted)
mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,blkio,freezer") = ? ERESTARTNOINTR (To be restarted)
mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,blkio,freezer") = ? ERESTARTNOINTR (To be restarted)
mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,blkio,freezer") = ? ERESTARTNOINTR (To be restarted)
mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,blkio,freezer") = 0
chmod("/syzcgroup/net", 0777)           = 0
mkdir("/syzcgroup/cpu", 0777)           = 0
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset") = 0
umount2("/syzcgroup/cpu", 0)            = 0
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct") = 0
umount2("/syzcgroup/cpu", 0)            = 0
mount("none", "/syzcgroup/cpu", "cgroup", 0, "hugetlb") = -1 EINVAL (Invalid argument)
mount("none", "/syzcgroup/cpu", "cgroup", 0, "rlimit") = -1 EINVAL (Invalid argument)
mount("none", "/syzcgroup/cpu", "cgroup", 0, "memory") = 0
umount2("/syzcgroup/cpu", 0)            = 0
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,memory") = ? ERESTARTNOINTR (To be restarted)
[   22.292651][  T288] cgroup: Unknown subsys name 'hugetlb'
[   22.298451][  T288] cgroup: Unknown subsys name 'rlimit'
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,memory") = ? ERESTARTNOINTR (To be restarted)
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,memory") = ? ERESTARTNOINTR (To be restarted)
mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,memory") = 0
chmod("/syzcgroup/cpu", 0777)           = 0
openat(AT_FDCWD, "/syzcgroup/cpu/cgroup.clone_children", O_WRONLY|O_CLOEXEC) = 3
write(3, "1", 1)                        = 1
close(3)                                = 0
openat(AT_FDCWD, "/syzcgroup/cpu/cpuset.memory_pressure_enabled", O_WRONLY|O_CLOEXEC) = 3
write(3, "1", 1)                        = 1
close(3)                                = 0
mkdir("./syzkaller.RAfYgS", 0700)       = 0
chmod("./syzkaller.RAfYgS", 0777)       = 0
chdir("./syzkaller.RAfYgS")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555f59650) = 289
./strace-static-x86_64: Process 289 attached
[pid   289] set_robust_list(0x555555f59660, 24) = 0
[pid   289] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   289] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   289] setsid()                    = 1
[pid   289] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   289] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   289] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   289] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   289] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   289] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   289] unshare(CLONE_NEWNS)        = 0
[pid   289] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   289] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   289] unshare(CLONE_NEWCGROUP)    = 0
[pid   289] unshare(CLONE_NEWUTS)       = 0
[pid   289] unshare(CLONE_SYSVSEM)      = 0
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] getpid()                    = 1
[pid   289] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid   289] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid   289] unshare(CLONE_NEWNET)       = 0
[pid   289] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   289] write(3, "0 65535", 7)      = 7
[pid   289] close(3)                    = 0
[pid   289] mkdir("/dev/binderfs", 0777) = 0
[pid   289] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   289] getpid()                    = 1
[pid   289] mkdir("/syzcgroup/unified/syz0", 0777) = 0
[pid   289] openat(AT_FDCWD, "/syzcgroup/unified/syz0/pids.max", O_WRONLY|O_CLOEXEC) = 3
[pid   289] write(3, "32", 2)           = 2
[pid   289] close(3)                    = 0
[pid   289] openat(AT_FDCWD, "/syzcgroup/unified/syz0/cgroup.procs", O_WRONLY|O_CLOEXEC) = 3
[pid   289] write(3, "1", 1)            = 1
[pid   289] close(3)                    = 0
[pid   289] mkdir("/syzcgroup/cpu/syz0", 0777) = 0
[pid   289] openat(AT_FDCWD, "/syzcgroup/cpu/syz0/cgroup.procs", O_WRONLY|O_CLOEXEC) = 3
[pid   289] write(3, "1", 1)            = 1
[pid   289] close(3)                    = 0
[pid   289] openat(AT_FDCWD, "/syzcgroup/cpu/syz0/memory.soft_limit_in_bytes", O_WRONLY|O_CLOEXEC) = 3
[pid   289] write(3, "313524224", 9)    = 9
[pid   289] close(3)                    = 0
[pid   289] openat(AT_FDCWD, "/syzcgroup/cpu/syz0/memory.limit_in_bytes", O_WRONLY|O_CLOEXEC) = 3
[pid   289] write(3, "314572800", 9)    = 9
[pid   289] close(3)                    = 0
[pid   289] mkdir("/syzcgroup/net/syz0", 0777) = 0
[   22.395699][   T24] audit: type=1400 audit(1708601521.760:70): avc:  denied  { mounton } for  pid=289 comm="syz-executor177" path="/sys/fs/fuse/connections" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=dir permissive=1
[   22.419955][   T24] audit: type=1400 audit(1708601521.760:71): avc:  denied  { mount } for  pid=289 comm="syz-executor177" name="/" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1
[pid   289] openat(AT_FDCWD, "/syzcgroup/net/syz0/cgroup.procs", O_WRONLY|O_CLOEXEC) = 3
[pid   289] write(3, "1", 1)            = 1
[pid   289] close(3)                    = 0
[pid   289] mkdir("./0", 0777)          = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555f59650) = 2
./strace-static-x86_64: Process 290 attached
[pid   290] set_robust_list(0x555555f59660, 24) = 0
[pid   290] chdir("./0")                = 0
[pid   290] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   290] setpgid(0, 0)               = 0
[pid   290] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   290] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   290] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   290] write(3, "1000", 4)         = 4
[pid   290] close(3)                    = 0
[pid   290] symlink("/dev/binderfs", "./binderfs") = 0
[pid   290] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = 0
[pid   290] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   290] openat(3, "freezer.state", O_RDWR) = 4
[pid   290] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   290] openat(3, "tasks", O_RDWR)  = 5
[pid   290] clone(child_stack=NULL, flags=0) = 3
[pid   290] write(5, "0x0000000000000003", 18) = 18
[pid   290] close(3)                    = 0
[pid   290] close(4)                    = 0
[pid   290] close(5)                    = 0
[pid   290] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   290] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   290] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   290] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   290] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   290] exit_group(0)               = ?
[pid   290] +++ exited with 0 +++
[   22.442775][   T24] audit: type=1400 audit(1708601521.760:72): avc:  denied  { mounton } for  pid=289 comm="syz-executor177" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[   22.446329][  T289] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./0/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./0/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./0/cgroup.cpu")    = 0
[pid   289] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./0/binderfs")      = 0
[pid   289] umount2("./0/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./0/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./0/cgroup")        = 0
[pid   289] umount2("./0/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./0/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./0/cgroup.net")    = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./0")                = 0
[pid   289] mkdir("./1", 0777)          = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555f59650) = 4
./strace-static-x86_64: Process 292 attached
[pid   292] set_robust_list(0x555555f59660, 24) = 0
[pid   292] chdir("./1")                = 0
[pid   292] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   292] setpgid(0, 0)               = 0
[pid   292] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   292] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   292] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   292] write(3, "1000", 4)         = 4
[pid   292] close(3)                    = 0
[pid   292] symlink("/dev/binderfs", "./binderfs") = 0
[pid   292] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   292] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   292] openat(3, "freezer.state", O_RDWR) = 4
[pid   292] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   292] openat(3, "tasks", O_RDWR)  = 5
[pid   292] clone(child_stack=NULL, flags=0) = 5
[pid   292] write(5, "0x0000000000000005", 18) = 18
[pid   292] close(3)                    = 0
[pid   292] close(4)                    = 0
[pid   292] close(5)                    = 0
[pid   292] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   292] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   292] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   292] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   292] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   292] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   292] exit_group(0)               = ?
[pid   292] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./1/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./1/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./1/cgroup.cpu")    = 0
[pid   289] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./1/binderfs")      = 0
[pid   289] umount2("./1/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./1/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./1/cgroup")        = 0
[pid   289] umount2("./1/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./1/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./1/cgroup.net")    = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./1")                = 0
[pid   289] mkdir("./2", 0777)          = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555f59650) = 6
./strace-static-x86_64: Process 294 attached
[pid   294] set_robust_list(0x555555f59660, 24) = 0
[pid   294] chdir("./2")                = 0
[pid   294] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   294] setpgid(0, 0)               = 0
[pid   294] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   294] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   294] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   294] write(3, "1000", 4)         = 4
[pid   294] close(3)                    = 0
[pid   294] symlink("/dev/binderfs", "./binderfs") = 0
[pid   294] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   294] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   294] openat(3, "freezer.state", O_RDWR) = 4
[pid   294] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   294] openat(3, "tasks", O_RDWR)  = 5
[pid   294] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 295 attached
) = 7
[pid   294] write(5, "0x0000000000000007", 18) = 18
[pid   294] close(3)                    = 0
[pid   294] close(4)                    = 0
[pid   294] close(5)                    = 0
[pid   294] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   294] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   294] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   294] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   294] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   294] exit_group(0)               = ?
[pid   294] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   289] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./2/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./2/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./2/cgroup.cpu")    = 0
[pid   289] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./2/binderfs")      = 0
[pid   289] umount2("./2/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./2/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./2/cgroup")        = 0
[pid   289] umount2("./2/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./2/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./2/cgroup.net")    = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./2")                = 0
[pid   289] mkdir("./3", 0777)          = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 296 attached
 <unfinished ...>
[pid   296] set_robust_list(0x555555f59660, 24) = 0
[pid   296] chdir("./3" <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 8
[pid   296] <... chdir resumed>)        = 0
[pid   296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   296] setpgid(0, 0)               = 0
[pid   296] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   296] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   296] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   296] write(3, "1000", 4)         = 4
[pid   296] close(3)                    = 0
[pid   296] symlink("/dev/binderfs", "./binderfs") = 0
[pid   296] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   296] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   296] openat(3, "freezer.state", O_RDWR) = 4
[pid   296] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   296] openat(3, "tasks", O_RDWR)  = 5
[pid   296] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 297 attached
) = 9
[pid   296] write(5, "0x0000000000000009", 18) = 18
[pid   296] close(3)                    = 0
[pid   296] close(4)                    = 0
[pid   296] close(5)                    = 0
[pid   296] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   296] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   296] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   296] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   296] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   296] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   296] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   296] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   296] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   296] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   296] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   296] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   296] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   296] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   296] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   296] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   296] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   296] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   296] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   296] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   296] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   296] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   296] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   296] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   296] exit_group(0)               = ?
[pid   296] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   289] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./3/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./3/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./3/cgroup.cpu")    = 0
[pid   289] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./3/binderfs")      = 0
[pid   289] umount2("./3/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./3/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./3/cgroup")        = 0
[pid   289] umount2("./3/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./3/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./3/cgroup.net")    = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./3")                = 0
[pid   289] mkdir("./4", 0777)          = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 298 attached
 <unfinished ...>
[pid   298] set_robust_list(0x555555f59660, 24) = 0
[pid   298] chdir("./4" <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 10
[pid   298] <... chdir resumed>)        = 0
[pid   298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   298] setpgid(0, 0)               = 0
[pid   298] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   298] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   298] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   298] write(3, "1000", 4)         = 4
[pid   298] close(3)                    = 0
[pid   298] symlink("/dev/binderfs", "./binderfs") = 0
[pid   298] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   298] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   298] openat(3, "freezer.state", O_RDWR) = 4
[pid   298] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   298] openat(3, "tasks", O_RDWR)  = 5
[pid   298] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 299 attached
) = 11
[   22.464642][   T24] audit: type=1400 audit(1708601521.760:73): avc:  denied  { mounton } for  pid=289 comm="syz-executor177" path="/dev/binderfs" dev="devtmpfs" ino=357 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   22.497143][   T24] audit: type=1400 audit(1708601521.790:74): avc:  denied  { mount } for  pid=289 comm="syz-executor177" name="/" dev="binder" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1
[pid   298] write(5, "0x000000000000000b", 18) = 18
[pid   298] close(3)                    = 0
[pid   298] close(4)                    = 0
[pid   298] close(5)                    = 0
[pid   298] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   298] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   298] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   298] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   298] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   298] exit_group(0)               = ?
[pid   298] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   289] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./4/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./4/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./4/cgroup.cpu")    = 0
[pid   289] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./4/binderfs")      = 0
[pid   289] umount2("./4/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./4/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./4/cgroup")        = 0
[pid   289] umount2("./4/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./4/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./4/cgroup.net")    = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./4")                = 0
[pid   289] mkdir("./5", 0777)          = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 300 attached
 <unfinished ...>
[pid   300] set_robust_list(0x555555f59660, 24) = 0
[pid   300] chdir("./5" <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 12
[pid   300] <... chdir resumed>)        = 0
[pid   300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   300] setpgid(0, 0)               = 0
[pid   300] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   300] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   300] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   300] write(3, "1000", 4)         = 4
[pid   300] close(3)                    = 0
[pid   300] symlink("/dev/binderfs", "./binderfs") = 0
[pid   300] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   300] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   300] openat(3, "freezer.state", O_RDWR) = 4
[pid   300] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   300] openat(3, "tasks", O_RDWR)  = 5
[pid   300] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 301 attached
) = 13
[pid   300] write(5, "0x000000000000000d", 18) = 18
[pid   300] close(3)                    = 0
[pid   300] close(4)                    = 0
[pid   300] close(5)                    = 0
[pid   300] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   300] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   300] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   300] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   300] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   300] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   300] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   300] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   300] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   300] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   300] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   300] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   300] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   300] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   300] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   300] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   300] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   300] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   300] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   300] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   300] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   300] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   300] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   300] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   300] exit_group(0)               = ?
[pid   300] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   289] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./5/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./5/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./5/cgroup.cpu")    = 0
[pid   289] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./5/binderfs")      = 0
[pid   289] umount2("./5/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./5/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./5/cgroup")        = 0
[pid   289] umount2("./5/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./5/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./5/cgroup.net")    = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./5")                = 0
[pid   289] mkdir("./6", 0777)          = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 302 attached
 <unfinished ...>
[pid   302] set_robust_list(0x555555f59660, 24) = 0
[pid   302] chdir("./6" <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 14
[pid   302] <... chdir resumed>)        = 0
[pid   302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   302] setpgid(0, 0)               = 0
[pid   302] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   302] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   302] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   302] write(3, "1000", 4)         = 4
[pid   302] close(3)                    = 0
[pid   302] symlink("/dev/binderfs", "./binderfs") = 0
[pid   302] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   302] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   302] openat(3, "freezer.state", O_RDWR) = 4
[pid   302] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   302] openat(3, "tasks", O_RDWR)  = 5
[pid   302] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 303 attached
) = 15
[pid   302] write(5, "0x000000000000000f", 18) = 18
[pid   302] close(3)                    = 0
[pid   302] close(4)                    = 0
[pid   302] close(5)                    = 0
[pid   302] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   302] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   302] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   302] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   302] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   302] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   302] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   302] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   302] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   302] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   302] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   302] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   302] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   302] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   302] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   302] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   302] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   302] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   302] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   302] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   302] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   302] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   302] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   302] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   302] exit_group(0)               = ?
[pid   302] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./6/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./6/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./6/cgroup.cpu")    = 0
[pid   289] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./6/binderfs")      = 0
[pid   289] umount2("./6/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./6/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./6/cgroup")        = 0
[pid   289] umount2("./6/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./6/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./6/cgroup.net")    = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./6")                = 0
[pid   289] mkdir("./7", 0777)          = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 304 attached
 <unfinished ...>
[pid   304] set_robust_list(0x555555f59660, 24) = 0
[pid   304] chdir("./7" <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 16
[pid   304] <... chdir resumed>)        = 0
[pid   304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   304] setpgid(0, 0)               = 0
[pid   304] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   304] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   304] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   304] write(3, "1000", 4)         = 4
[pid   304] close(3)                    = 0
[pid   304] symlink("/dev/binderfs", "./binderfs") = 0
[pid   304] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   304] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   304] openat(3, "freezer.state", O_RDWR) = 4
[pid   304] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   304] openat(3, "tasks", O_RDWR)  = 5
[pid   304] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 305 attached
) = 17
[pid   304] write(5, "0x0000000000000011", 18) = 18
[pid   304] close(3)                    = 0
[pid   304] close(4)                    = 0
[pid   304] close(5)                    = 0
[pid   304] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   304] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   304] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   304] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   304] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   304] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   304] exit_group(0)               = ?
[pid   304] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=16, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   289] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./7/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./7/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./7/cgroup.cpu")    = 0
[pid   289] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./7/binderfs")      = 0
[pid   289] umount2("./7/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./7/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./7/cgroup")        = 0
[pid   289] umount2("./7/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./7/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./7/cgroup.net")    = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./7")                = 0
[pid   289] mkdir("./8", 0777)          = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 306 attached
 <unfinished ...>
[pid   306] set_robust_list(0x555555f59660, 24) = 0
[pid   306] chdir("./8" <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 18
[pid   306] <... chdir resumed>)        = 0
[pid   306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   306] setpgid(0, 0)               = 0
[pid   306] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   306] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   306] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   306] write(3, "1000", 4)         = 4
[pid   306] close(3)                    = 0
[pid   306] symlink("/dev/binderfs", "./binderfs") = 0
[pid   306] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   306] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   306] openat(3, "freezer.state", O_RDWR) = 4
[pid   306] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   306] openat(3, "tasks", O_RDWR)  = 5
[pid   306] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 307 attached
) = 19
[pid   306] write(5, "0x0000000000000013", 18) = 18
[pid   306] close(3)                    = 0
[pid   306] close(4)                    = 0
[pid   306] close(5)                    = 0
[pid   306] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   306] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   306] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   306] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   306] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   306] exit_group(0)               = ?
[pid   306] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=18, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./8/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./8/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./8/cgroup.cpu")    = 0
[pid   289] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./8/binderfs")      = 0
[pid   289] umount2("./8/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./8/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./8/cgroup")        = 0
[pid   289] umount2("./8/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./8/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./8/cgroup.net")    = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./8")                = 0
[pid   289] mkdir("./9", 0777)          = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555f59650) = 20
./strace-static-x86_64: Process 308 attached
[pid   308] set_robust_list(0x555555f59660, 24) = 0
[pid   308] chdir("./9")                = 0
[pid   308] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   308] setpgid(0, 0)               = 0
[pid   308] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   308] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   308] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   308] write(3, "1000", 4)         = 4
[pid   308] close(3)                    = 0
[pid   308] symlink("/dev/binderfs", "./binderfs") = 0
[pid   308] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   308] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   308] openat(3, "freezer.state", O_RDWR) = 4
[pid   308] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   308] openat(3, "tasks", O_RDWR)  = 5
[pid   308] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 309 attached
) = 21
[pid   308] write(5, "0x0000000000000015", 18) = 18
[pid   308] close(3)                    = 0
[pid   308] close(4)                    = 0
[pid   308] close(5)                    = 0
[pid   308] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   308] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   308] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   308] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   308] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   308] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   308] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   308] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   308] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   308] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   308] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   308] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   308] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   308] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   308] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   308] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   308] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   308] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   308] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   308] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   308] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   308] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   308] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   308] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   308] exit_group(0)               = ?
[pid   308] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   289] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./9/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./9/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./9/cgroup.cpu")    = 0
[pid   289] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./9/binderfs")      = 0
[pid   289] umount2("./9/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./9/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./9/cgroup")        = 0
[pid   289] umount2("./9/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./9/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./9/cgroup.net")    = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./9")                = 0
[pid   289] mkdir("./10", 0777)         = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 310 attached
 <unfinished ...>
[pid   310] set_robust_list(0x555555f59660, 24) = 0
[pid   310] chdir("./10" <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 22
[pid   310] <... chdir resumed>)        = 0
[pid   310] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   310] setpgid(0, 0)               = 0
[pid   310] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   310] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   310] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   310] write(3, "1000", 4)         = 4
[pid   310] close(3)                    = 0
[pid   310] symlink("/dev/binderfs", "./binderfs") = 0
[pid   310] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   310] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   310] openat(3, "freezer.state", O_RDWR) = 4
[pid   310] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   310] openat(3, "tasks", O_RDWR)  = 5
[pid   310] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 311 attached
) = 23
[pid   310] write(5, "0x0000000000000017", 18) = 18
[pid   310] close(3)                    = 0
[pid   310] close(4)                    = 0
[pid   310] close(5)                    = 0
[pid   310] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   310] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   310] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   310] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   310] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   310] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   310] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   310] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   310] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   310] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   310] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   310] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   310] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   310] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   310] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   310] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   310] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   310] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   310] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   310] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   310] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   310] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   310] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   310] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   310] exit_group(0)               = ?
[pid   310] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./10/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./10/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./10/cgroup.cpu")   = 0
[pid   289] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./10/binderfs")     = 0
[pid   289] umount2("./10/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./10/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./10/cgroup")       = 0
[pid   289] umount2("./10/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./10/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./10/cgroup.net")   = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./10")               = 0
[pid   289] mkdir("./11", 0777)         = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 312 attached
 <unfinished ...>
[pid   312] set_robust_list(0x555555f59660, 24) = 0
[pid   312] chdir("./11" <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 24
[pid   312] <... chdir resumed>)        = 0
[pid   312] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   312] setpgid(0, 0)               = 0
[pid   312] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   312] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   312] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   312] write(3, "1000", 4)         = 4
[pid   312] close(3)                    = 0
[pid   312] symlink("/dev/binderfs", "./binderfs") = 0
[pid   312] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   312] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   312] openat(3, "freezer.state", O_RDWR) = 4
[pid   312] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   312] openat(3, "tasks", O_RDWR)  = 5
[pid   312] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 313 attached
) = 25
[pid   312] write(5, "0x0000000000000019", 18) = 18
[pid   312] close(3)                    = 0
[pid   312] close(4)                    = 0
[pid   312] close(5)                    = 0
[pid   312] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   312] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   312] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   312] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   312] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   312] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   312] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   312] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   312] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   312] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   312] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   312] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   312] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   312] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   312] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   312] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   312] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   312] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   312] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   312] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   312] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   312] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   312] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   312] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   312] exit_group(0)               = ?
[pid   312] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=24, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./11/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./11/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./11/cgroup.cpu")   = 0
[pid   289] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./11/binderfs")     = 0
[pid   289] umount2("./11/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./11/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./11/cgroup")       = 0
[pid   289] umount2("./11/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./11/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./11/cgroup.net")   = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./11")               = 0
[pid   289] mkdir("./12", 0777)         = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 314 attached
 <unfinished ...>
[pid   314] set_robust_list(0x555555f59660, 24 <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 26
[pid   314] <... set_robust_list resumed>) = 0
[pid   314] chdir("./12")               = 0
[pid   314] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   314] setpgid(0, 0)               = 0
[pid   314] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   314] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   314] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   314] write(3, "1000", 4)         = 4
[pid   314] close(3)                    = 0
[pid   314] symlink("/dev/binderfs", "./binderfs") = 0
[pid   314] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   314] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   314] openat(3, "freezer.state", O_RDWR) = 4
[pid   314] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   314] openat(3, "tasks", O_RDWR)  = 5
[pid   314] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 315 attached
) = 27
[pid   314] write(5, "0x000000000000001b", 18) = 18
[pid   314] close(3)                    = 0
[pid   314] close(4)                    = 0
[pid   314] close(5)                    = 0
[pid   314] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   314] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   314] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   314] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   314] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   314] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   314] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   314] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   314] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   314] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   314] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   314] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   314] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   314] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   314] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   314] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   314] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   314] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   314] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   314] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   314] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   314] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   314] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   314] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   314] exit_group(0)               = ?
[pid   314] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=26, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   289] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./12/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./12/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./12/cgroup.cpu")   = 0
[pid   289] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./12/binderfs")     = 0
[pid   289] umount2("./12/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./12/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./12/cgroup")       = 0
[pid   289] umount2("./12/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./12/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./12/cgroup.net")   = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./12")               = 0
[pid   289] mkdir("./13", 0777)         = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 316 attached
 <unfinished ...>
[pid   316] set_robust_list(0x555555f59660, 24 <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 28
[pid   316] <... set_robust_list resumed>) = 0
[pid   316] chdir("./13")               = 0
[pid   316] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   316] setpgid(0, 0)               = 0
[pid   316] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   316] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   316] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   316] write(3, "1000", 4)         = 4
[pid   316] close(3)                    = 0
[pid   316] symlink("/dev/binderfs", "./binderfs") = 0
[pid   316] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   316] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   316] openat(3, "freezer.state", O_RDWR) = 4
[pid   316] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   316] openat(3, "tasks", O_RDWR)  = 5
[pid   316] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 317 attached
) = 29
[pid   316] write(5, "0x000000000000001d", 18) = 18
[pid   316] close(3)                    = 0
[pid   316] close(4)                    = 0
[pid   316] close(5)                    = 0
[pid   316] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   316] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   316] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   316] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   316] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   316] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   316] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   316] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   316] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   316] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   316] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   316] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   316] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   316] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   316] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   316] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   316] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   316] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   316] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   316] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   316] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   316] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   316] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   316] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   316] exit_group(0)               = ?
[pid   316] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=28, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   289] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./13/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./13/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./13/cgroup.cpu")   = 0
[pid   289] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./13/binderfs")     = 0
[pid   289] umount2("./13/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./13/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./13/cgroup")       = 0
[pid   289] umount2("./13/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./13/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./13/cgroup.net")   = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./13")               = 0
[pid   289] mkdir("./14", 0777)         = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 318 attached
 <unfinished ...>
[pid   318] set_robust_list(0x555555f59660, 24) = 0
[pid   318] chdir("./14")               = 0
[pid   318] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   318] setpgid(0, 0)               = 0
[pid   318] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 30
[pid   318] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   318] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   318] write(3, "1000", 4)         = 4
[pid   318] close(3)                    = 0
[pid   318] symlink("/dev/binderfs", "./binderfs") = 0
[pid   318] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   318] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   318] openat(3, "freezer.state", O_RDWR) = 4
[pid   318] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   318] openat(3, "tasks", O_RDWR)  = 5
[pid   318] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 319 attached
) = 31
[pid   318] write(5, "0x000000000000001f", 18) = 18
[pid   318] close(3)                    = 0
[pid   318] close(4)                    = 0
[pid   318] close(5)                    = 0
[pid   318] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   318] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   318] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   318] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   318] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   318] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   318] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   318] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   318] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   318] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   318] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   318] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   318] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   318] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   318] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   318] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   318] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   318] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   318] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   318] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   318] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   318] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   318] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   318] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   318] exit_group(0)               = ?
[pid   318] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=30, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./14/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./14/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./14/cgroup.cpu")   = 0
[pid   289] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./14/binderfs")     = 0
[pid   289] umount2("./14/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./14/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./14/cgroup")       = 0
[pid   289] umount2("./14/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./14/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./14/cgroup.net")   = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./14")               = 0
[pid   289] mkdir("./15", 0777)         = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 320 attached
 <unfinished ...>
[pid   320] set_robust_list(0x555555f59660, 24) = 0
[pid   320] chdir("./15")               = 0
[pid   320] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   320] setpgid(0, 0)               = 0
[pid   320] symlink("/syzcgroup/unified/syz0", "./cgroup" <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 32
[pid   320] <... symlink resumed>)      = 0
[pid   320] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   320] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   320] write(3, "1000", 4)         = 4
[pid   320] close(3)                    = 0
[pid   320] symlink("/dev/binderfs", "./binderfs") = 0
[pid   320] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   320] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   320] openat(3, "freezer.state", O_RDWR) = 4
[pid   320] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   320] openat(3, "tasks", O_RDWR)  = 5
[pid   320] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 322 attached
) = 33
[pid   320] write(5, "0x0000000000000021", 18) = 18
[pid   320] close(3)                    = 0
[pid   320] close(4)                    = 0
[pid   320] close(5)                    = 0
[pid   320] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   320] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   320] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   320] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   320] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   320] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   320] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   320] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   320] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   320] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   320] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   320] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   320] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   320] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   320] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   320] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   320] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   320] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   320] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   320] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   320] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   320] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   320] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   320] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   320] exit_group(0)               = ?
[pid   320] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=32, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   289] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./15/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./15/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./15/cgroup.cpu")   = 0
[pid   289] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./15/binderfs")     = 0
[pid   289] umount2("./15/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./15/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./15/cgroup")       = 0
[pid   289] umount2("./15/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./15/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./15/cgroup.net")   = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./15")               = 0
[pid   289] mkdir("./16", 0777)         = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 323 attached
 <unfinished ...>
[pid   323] set_robust_list(0x555555f59660, 24) = 0
[pid   323] chdir("./16" <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 34
[pid   323] <... chdir resumed>)        = 0
[pid   323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   323] setpgid(0, 0)               = 0
[pid   323] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   323] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   323] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   323] write(3, "1000", 4)         = 4
[pid   323] close(3)                    = 0
[pid   323] symlink("/dev/binderfs", "./binderfs") = 0
[pid   323] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   323] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   323] openat(3, "freezer.state", O_RDWR) = 4
[pid   323] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   323] openat(3, "tasks", O_RDWR)  = 5
[pid   323] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 324 attached
) = 35
[pid   323] write(5, "0x0000000000000023", 18) = 18
[pid   323] close(3)                    = 0
[pid   323] close(4)                    = 0
[pid   323] close(5)                    = 0
[pid   323] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   323] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   323] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   323] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   323] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   323] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   323] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   323] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   323] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   323] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   323] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   323] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   323] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   323] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   323] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   323] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   323] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   323] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   323] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   323] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   323] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   323] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   323] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   323] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   323] exit_group(0)               = ?
[pid   323] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=34, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./16/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./16/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./16/cgroup.cpu")   = 0
[pid   289] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./16/binderfs")     = 0
[pid   289] umount2("./16/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./16/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./16/cgroup")       = 0
[pid   289] umount2("./16/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./16/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./16/cgroup.net")   = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./16")               = 0
[pid   289] mkdir("./17", 0777)         = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 325 attached
 <unfinished ...>
[pid   325] set_robust_list(0x555555f59660, 24) = 0
[pid   325] chdir("./17")               = 0
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 36
[pid   325] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   325] setpgid(0, 0)               = 0
[pid   325] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   325] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   325] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   325] write(3, "1000", 4)         = 4
[pid   325] close(3)                    = 0
[pid   325] symlink("/dev/binderfs", "./binderfs") = 0
[pid   325] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   325] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   325] openat(3, "freezer.state", O_RDWR) = 4
[pid   325] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   325] openat(3, "tasks", O_RDWR)  = 5
[pid   325] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 326 attached
) = 37
[pid   325] write(5, "0x0000000000000025", 18) = 18
[pid   325] close(3)                    = 0
[pid   325] close(4)                    = 0
[pid   325] close(5)                    = 0
[pid   325] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   325] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   325] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   325] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   325] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   325] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   325] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   325] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   325] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   325] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   325] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   325] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   325] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   325] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   325] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   325] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   325] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   325] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   325] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   325] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   325] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   325] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   325] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   325] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   325] exit_group(0)               = ?
[pid   325] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=36, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./17/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./17/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./17/cgroup.cpu")   = 0
[pid   289] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./17/binderfs")     = 0
[pid   289] umount2("./17/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./17/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./17/cgroup")       = 0
[pid   289] umount2("./17/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./17/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./17/cgroup.net")   = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./17")               = 0
[pid   289] mkdir("./18", 0777)         = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 327 attached
 <unfinished ...>
[pid   327] set_robust_list(0x555555f59660, 24) = 0
[pid   327] chdir("./18")               = 0
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 38
[pid   327] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   327] setpgid(0, 0)               = 0
[pid   327] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   327] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   327] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   327] write(3, "1000", 4)         = 4
[pid   327] close(3)                    = 0
[pid   327] symlink("/dev/binderfs", "./binderfs") = 0
[pid   327] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   327] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   327] openat(3, "freezer.state", O_RDWR) = 4
[pid   327] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   327] openat(3, "tasks", O_RDWR)  = 5
[pid   327] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 328 attached
) = 39
[pid   327] write(5, "0x0000000000000027", 18) = 18
[pid   327] close(3)                    = 0
[pid   327] close(4)                    = 0
[pid   327] close(5)                    = 0
[pid   327] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   327] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   327] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   327] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   327] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   327] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   327] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   327] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   327] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   327] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   327] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   327] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   327] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   327] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   327] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   327] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   327] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   327] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   327] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   327] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   327] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   327] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   327] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   327] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   327] exit_group(0)               = ?
[pid   327] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=38, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   289] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./18/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./18/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./18/cgroup.cpu")   = 0
[pid   289] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./18/binderfs")     = 0
[pid   289] umount2("./18/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./18/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./18/cgroup")       = 0
[pid   289] umount2("./18/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./18/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./18/cgroup.net")   = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./18")               = 0
[pid   289] mkdir("./19", 0777)         = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 329 attached
 <unfinished ...>
[pid   329] set_robust_list(0x555555f59660, 24 <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 40
[pid   329] <... set_robust_list resumed>) = 0
[pid   329] chdir("./19")               = 0
[pid   329] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   329] setpgid(0, 0)               = 0
[pid   329] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   329] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   329] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   329] write(3, "1000", 4)         = 4
[pid   329] close(3)                    = 0
[pid   329] symlink("/dev/binderfs", "./binderfs") = 0
[pid   329] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   329] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   329] openat(3, "freezer.state", O_RDWR) = 4
[pid   329] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   329] openat(3, "tasks", O_RDWR)  = 5
[pid   329] clone(child_stack=NULL, flags=0) = 41
./strace-static-x86_64: Process 330 attached
[pid   329] write(5, "0x0000000000000029", 18) = 18
[pid   329] close(3)                    = 0
[pid   329] close(4)                    = 0
[pid   329] close(5)                    = 0
[pid   329] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   329] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   329] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   329] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   329] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   329] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   329] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   329] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   329] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   329] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   329] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   329] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   329] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   329] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   329] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   329] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   329] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   329] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   329] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   329] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   329] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   329] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   329] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   329] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   329] exit_group(0)               = ?
[pid   329] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=40, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   289] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./19/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./19/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./19/cgroup.cpu")   = 0
[pid   289] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./19/binderfs")     = 0
[pid   289] umount2("./19/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./19/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./19/cgroup")       = 0
[pid   289] umount2("./19/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./19/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./19/cgroup.net")   = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./19")               = 0
[pid   289] mkdir("./20", 0777)         = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 331 attached
 <unfinished ...>
[pid   331] set_robust_list(0x555555f59660, 24) = 0
[pid   331] chdir("./20" <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 42
[pid   331] <... chdir resumed>)        = 0
[pid   331] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   331] setpgid(0, 0)               = 0
[pid   331] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   331] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   331] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   331] write(3, "1000", 4)         = 4
[pid   331] close(3)                    = 0
[pid   331] symlink("/dev/binderfs", "./binderfs") = 0
[pid   331] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   331] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   331] openat(3, "freezer.state", O_RDWR) = 4
[pid   331] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   331] openat(3, "tasks", O_RDWR)  = 5
[pid   331] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 332 attached
) = 43
[pid   331] write(5, "0x000000000000002b", 18) = 18
[pid   331] close(3)                    = 0
[pid   331] close(4)                    = 0
[pid   331] close(5)                    = 0
[pid   331] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   331] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   331] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   331] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   331] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   331] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   331] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   331] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   331] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   331] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   331] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   331] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   331] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   331] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   331] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   331] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   331] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   331] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   331] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   331] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   331] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   331] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   331] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   331] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   331] exit_group(0)               = ?
[pid   331] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=42, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./20/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./20/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./20/cgroup.cpu")   = 0
[pid   289] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./20/binderfs")     = 0
[pid   289] umount2("./20/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./20/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./20/cgroup")       = 0
[pid   289] umount2("./20/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./20/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./20/cgroup.net")   = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./20")               = 0
[pid   289] mkdir("./21", 0777)         = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 333 attached
 <unfinished ...>
[pid   333] set_robust_list(0x555555f59660, 24) = 0
[pid   333] chdir("./21")               = 0
[pid   333] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   333] setpgid(0, 0)               = 0
[pid   333] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 44
[pid   333] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   333] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   333] write(3, "1000", 4)         = 4
[pid   333] close(3)                    = 0
[pid   333] symlink("/dev/binderfs", "./binderfs") = 0
[pid   333] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   333] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   333] openat(3, "freezer.state", O_RDWR) = 4
[pid   333] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   333] openat(3, "tasks", O_RDWR)  = 5
[pid   333] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 334 attached
) = 45
[pid   333] write(5, "0x000000000000002d", 18) = 18
[pid   333] close(3)                    = 0
[pid   333] close(4)                    = 0
[pid   333] close(5)                    = 0
[pid   333] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   333] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   333] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   333] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   333] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   333] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   333] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   333] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   333] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   333] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   333] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   333] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   333] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   333] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   333] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   333] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   333] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   333] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   333] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   333] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   333] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   333] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   333] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   333] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   333] exit_group(0)               = ?
[pid   333] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=44, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   289] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./21/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./21/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./21/cgroup.cpu")   = 0
[pid   289] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./21/binderfs")     = 0
[pid   289] umount2("./21/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./21/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./21/cgroup")       = 0
[pid   289] umount2("./21/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./21/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./21/cgroup.net")   = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./21")               = 0
[pid   289] mkdir("./22", 0777)         = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 335 attached
 <unfinished ...>
[pid   335] set_robust_list(0x555555f59660, 24) = 0
[pid   335] chdir("./22" <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 46
[pid   335] <... chdir resumed>)        = 0
[pid   335] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   335] setpgid(0, 0)               = 0
[pid   335] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   335] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   335] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   335] write(3, "1000", 4)         = 4
[pid   335] close(3)                    = 0
[pid   335] symlink("/dev/binderfs", "./binderfs") = 0
[pid   335] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   335] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   335] openat(3, "freezer.state", O_RDWR) = 4
[pid   335] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   335] openat(3, "tasks", O_RDWR)  = 5
[pid   335] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 336 attached
) = 47
[pid   335] write(5, "0x000000000000002f", 18) = 18
[pid   335] close(3)                    = 0
[pid   335] close(4)                    = 0
[pid   335] close(5)                    = 0
[pid   335] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   335] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   335] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   335] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   335] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   335] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   335] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   335] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   335] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   335] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   335] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   335] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   335] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   335] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   335] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   335] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   335] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   335] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   335] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   335] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   335] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   335] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   335] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   335] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   335] exit_group(0)               = ?
[pid   335] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=46, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./22/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./22/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./22/cgroup.cpu")   = 0
[pid   289] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./22/binderfs")     = 0
[pid   289] umount2("./22/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./22/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./22/cgroup")       = 0
[pid   289] umount2("./22/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./22/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./22/cgroup.net")   = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./22")               = 0
[pid   289] mkdir("./23", 0777)         = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 337 attached
 <unfinished ...>
[pid   337] set_robust_list(0x555555f59660, 24) = 0
[pid   337] chdir("./23" <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 48
[pid   337] <... chdir resumed>)        = 0
[pid   337] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   337] setpgid(0, 0)               = 0
[pid   337] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   337] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   337] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   337] write(3, "1000", 4)         = 4
[pid   337] close(3)                    = 0
[pid   337] symlink("/dev/binderfs", "./binderfs") = 0
[pid   337] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   337] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   337] openat(3, "freezer.state", O_RDWR) = 4
[pid   337] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   337] openat(3, "tasks", O_RDWR)  = 5
[pid   337] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 338 attached
) = 49
[pid   337] write(5, "0x0000000000000031", 18) = 18
[pid   337] close(3)                    = 0
[pid   337] close(4)                    = 0
[pid   337] close(5)                    = 0
[pid   337] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   337] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   337] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   337] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   337] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   337] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   337] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   337] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   337] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   337] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   337] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   337] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   337] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   337] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   337] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   337] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   337] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   337] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   337] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   337] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   337] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   337] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   337] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   337] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   337] exit_group(0)               = ?
[pid   337] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=48, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   289] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./23/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./23/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./23/cgroup.cpu")   = 0
[pid   289] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./23/binderfs")     = 0
[pid   289] umount2("./23/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./23/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./23/cgroup")       = 0
[pid   289] umount2("./23/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./23/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./23/cgroup.net")   = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./23")               = 0
[pid   289] mkdir("./24", 0777)         = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 339 attached
 <unfinished ...>
[pid   339] set_robust_list(0x555555f59660, 24) = 0
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 50
[pid   339] chdir("./24")               = 0
[pid   339] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   339] setpgid(0, 0)               = 0
[pid   339] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   339] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   339] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   339] write(3, "1000", 4)         = 4
[pid   339] close(3)                    = 0
[pid   339] symlink("/dev/binderfs", "./binderfs") = 0
[pid   339] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   339] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   339] openat(3, "freezer.state", O_RDWR) = 4
[pid   339] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   339] openat(3, "tasks", O_RDWR)  = 5
[pid   339] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 340 attached
) = 51
[pid   339] write(5, "0x0000000000000033", 18) = 18
[pid   339] close(3)                    = 0
[pid   339] close(4)                    = 0
[pid   339] close(5)                    = 0
[pid   339] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   339] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   339] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   339] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   339] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   339] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   339] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   339] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   339] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   339] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   339] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   339] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   339] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   339] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   339] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   339] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   339] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   339] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   339] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   339] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   339] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   339] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   339] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   339] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   339] exit_group(0)               = ?
[pid   339] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=50, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   289] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./24/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./24/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./24/cgroup.cpu")   = 0
[pid   289] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./24/binderfs")     = 0
[pid   289] umount2("./24/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./24/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./24/cgroup")       = 0
[pid   289] umount2("./24/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./24/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./24/cgroup.net")   = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./24")               = 0
[pid   289] mkdir("./25", 0777)         = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 341 attached
 <unfinished ...>
[pid   341] set_robust_list(0x555555f59660, 24) = 0
[pid   341] chdir("./25" <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 52
[pid   341] <... chdir resumed>)        = 0
[pid   341] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   341] setpgid(0, 0)               = 0
[pid   341] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   341] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   341] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   341] write(3, "1000", 4)         = 4
[pid   341] close(3)                    = 0
[pid   341] symlink("/dev/binderfs", "./binderfs") = 0
[pid   341] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   341] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   341] openat(3, "freezer.state", O_RDWR) = 4
[pid   341] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   341] openat(3, "tasks", O_RDWR)  = 5
[pid   341] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 342 attached
) = 53
[pid   341] write(5, "0x0000000000000035", 18) = 18
[pid   341] close(3)                    = 0
[pid   341] close(4)                    = 0
[pid   341] close(5)                    = 0
[pid   341] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   341] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   341] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   341] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   341] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   341] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   341] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   341] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   341] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   341] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   341] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   341] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   341] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   341] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   341] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   341] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   341] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   341] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   341] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   341] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   341] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   341] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   341] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   341] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   341] exit_group(0)               = ?
[pid   341] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=52, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./25/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./25/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./25/cgroup.cpu")   = 0
[pid   289] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./25/binderfs")     = 0
[pid   289] umount2("./25/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./25/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./25/cgroup")       = 0
[pid   289] umount2("./25/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./25/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./25/cgroup.net")   = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./25")               = 0
[pid   289] mkdir("./26", 0777)         = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 343 attached
 <unfinished ...>
[pid   343] set_robust_list(0x555555f59660, 24) = 0
[pid   343] chdir("./26" <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 54
[pid   343] <... chdir resumed>)        = 0
[pid   343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   343] setpgid(0, 0)               = 0
[pid   343] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   343] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   343] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   343] write(3, "1000", 4)         = 4
[pid   343] close(3)                    = 0
[pid   343] symlink("/dev/binderfs", "./binderfs") = 0
[pid   343] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   343] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   343] openat(3, "freezer.state", O_RDWR) = 4
[pid   343] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   343] openat(3, "tasks", O_RDWR)  = 5
[pid   343] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 344 attached
) = 55
[pid   343] write(5, "0x0000000000000037", 18) = 18
[pid   343] close(3)                    = 0
[pid   343] close(4)                    = 0
[pid   343] close(5)                    = 0
[pid   343] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   343] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   343] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   343] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   343] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   343] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   343] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   343] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   343] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   343] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   343] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   343] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   343] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   343] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   343] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   343] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   343] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   343] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   343] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   343] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   343] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   343] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   343] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   343] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   343] exit_group(0)               = ?
[pid   343] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=54, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   289] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./26/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./26/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./26/cgroup.cpu")   = 0
[pid   289] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./26/binderfs")     = 0
[pid   289] umount2("./26/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./26/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./26/cgroup")       = 0
[pid   289] umount2("./26/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./26/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./26/cgroup.net")   = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./26")               = 0
[pid   289] mkdir("./27", 0777)         = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 345 attached
 <unfinished ...>
[pid   345] set_robust_list(0x555555f59660, 24) = 0
[pid   345] chdir("./27" <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 56
[pid   345] <... chdir resumed>)        = 0
[pid   345] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   345] setpgid(0, 0)               = 0
[pid   345] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   345] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   345] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   345] write(3, "1000", 4)         = 4
[pid   345] close(3)                    = 0
[pid   345] symlink("/dev/binderfs", "./binderfs") = 0
[pid   345] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   345] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   345] openat(3, "freezer.state", O_RDWR) = 4
[pid   345] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   345] openat(3, "tasks", O_RDWR)  = 5
[pid   345] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 346 attached
) = 57
[pid   345] write(5, "0x0000000000000039", 18) = 18
[pid   345] close(3)                    = 0
[pid   345] close(4)                    = 0
[pid   345] close(5)                    = 0
[pid   345] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   345] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   345] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   345] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   345] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   345] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   345] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   345] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   345] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   345] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   345] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   345] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   345] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   345] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   345] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   345] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   345] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   345] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   345] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   345] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   345] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   345] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   345] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   345] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   345] exit_group(0)               = ?
[pid   345] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=56, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./27/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./27/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./27/cgroup.cpu")   = 0
[pid   289] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./27/binderfs")     = 0
[pid   289] umount2("./27/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./27/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./27/cgroup")       = 0
[pid   289] umount2("./27/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./27/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./27/cgroup.net")   = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./27")               = 0
[pid   289] mkdir("./28", 0777)         = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 347 attached
 <unfinished ...>
[pid   347] set_robust_list(0x555555f59660, 24) = 0
[pid   347] chdir("./28" <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 58
[pid   347] <... chdir resumed>)        = 0
[pid   347] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   347] setpgid(0, 0)               = 0
[pid   347] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   347] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   347] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   347] write(3, "1000", 4)         = 4
[pid   347] close(3)                    = 0
[pid   347] symlink("/dev/binderfs", "./binderfs") = 0
[pid   347] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   347] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   347] openat(3, "freezer.state", O_RDWR) = 4
[pid   347] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   347] openat(3, "tasks", O_RDWR)  = 5
[pid   347] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 348 attached
) = 59
[pid   347] write(5, "0x000000000000003b", 18) = 18
[pid   347] close(3)                    = 0
[pid   347] close(4)                    = 0
[pid   347] close(5)                    = 0
[pid   347] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   347] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   347] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   347] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   347] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   347] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   347] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   347] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   347] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   347] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   347] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   347] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   347] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   347] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   347] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   347] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   347] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   347] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   347] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   347] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   347] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   347] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   347] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   347] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   347] exit_group(0)               = ?
[pid   347] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   289] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./28/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./28/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./28/cgroup.cpu")   = 0
[pid   289] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./28/binderfs")     = 0
[pid   289] umount2("./28/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./28/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./28/cgroup")       = 0
[pid   289] umount2("./28/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./28/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./28/cgroup.net")   = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./28")               = 0
[pid   289] mkdir("./29", 0777)         = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 349 attached
 <unfinished ...>
[pid   349] set_robust_list(0x555555f59660, 24) = 0
[pid   349] chdir("./29" <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 60
[pid   349] <... chdir resumed>)        = 0
[pid   349] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   349] setpgid(0, 0)               = 0
[pid   349] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   349] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   349] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   349] write(3, "1000", 4)         = 4
[pid   349] close(3)                    = 0
[pid   349] symlink("/dev/binderfs", "./binderfs") = 0
[pid   349] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   349] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   349] openat(3, "freezer.state", O_RDWR) = 4
[pid   349] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   349] openat(3, "tasks", O_RDWR)  = 5
[pid   349] clone(child_stack=NULL, flags=0) = 61
[pid   349] write(5, "0x000000000000003d", 18) = 18
[pid   349] close(3)                    = 0
[pid   349] close(4)                    = 0
[pid   349] close(5)                    = 0
[pid   349] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   349] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   349] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   349] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   349] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   349] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   349] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   349] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   349] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   349] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   349] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   349] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   349] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   349] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   349] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   349] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   349] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   349] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   349] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   349] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   349] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   349] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   349] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   349] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   349] exit_group(0)               = ?
[pid   349] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   289] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 6 entries */, 32768) = 176
[pid   289] umount2("./29/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./29/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./29/cgroup.cpu")   = 0
[pid   289] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./29/binderfs")     = 0
[pid   289] umount2("./29/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./29/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./29/cgroup")       = 0
[pid   289] umount2("./29/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   289] newfstatat(AT_FDCWD, "./29/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   289] unlink("./29/cgroup.net")   = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0
[pid   289] rmdir("./29")               = 0
[pid   289] mkdir("./30", 0777)         = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 351 attached
 <unfinished ...>
[pid   351] set_robust_list(0x555555f59660, 24) = 0
[pid   351] chdir("./30")               = 0
[pid   351] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   351] setpgid(0, 0)               = 0
[pid   351] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0
[pid   289] <... clone resumed>, child_tidptr=0x555555f59650) = 62
[pid   351] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0
[pid   351] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0
[pid   351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   351] write(3, "1000", 4)         = 4
[pid   351] close(3)                    = 0
[pid   351] symlink("/dev/binderfs", "./binderfs") = 0
[pid   351] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists)
[pid   351] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3
[pid   351] openat(3, "freezer.state", O_RDWR) = 4
[pid   351] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7
[pid   351] openat(3, "tasks", O_RDWR)  = 5
[pid   351] clone(child_stack=NULL, flags=0) = -1 EAGAIN (Resource temporarily unavailable)
[pid   351] write(5, "0x0000000000000000", 18) = 18
[   22.993872][  T351] cgroup: fork rejected by pids controller in /syz0
[pid   289] kill(-62, SIGKILL)          = 0
[pid   289] kill(62, SIGKILL)           = 0
[pid   289] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   289] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0
[pid   289] getdents64(3, 0x555555f5a6f0 /* 2 entries */, 32768) = 48
[pid   289] getdents64(3, 0x555555f5a6f0 /* 0 entries */, 32768) = 0
[pid   289] close(3)                    = 0