./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2947392427 <...> Warning: Permanently added '10.128.1.53' (ED25519) to the list of known hosts. execve("./syz-executor2947392427", ["./syz-executor2947392427"], 0x7ffe91083840 /* 10 vars */) = 0 brk(NULL) = 0x55555713b000 brk(0x55555713bd00) = 0x55555713bd00 arch_prctl(ARCH_SET_FS, 0x55555713b380) = 0 set_tid_address(0x55555713b650) = 287 set_robust_list(0x55555713b660, 24) = 0 rseq(0x55555713bca0, 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-executor2947392427", 4096) = 28 getrandom("\xdd\x64\xee\xff\x87\x97\x93\x7c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555713bd00 brk(0x55555715cd00) = 0x55555715cd00 brk(0x55555715d000) = 0x55555715d000 mprotect(0x7f2299d39000, 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 umount2("/syzcgroup/net", 0) = 0 [ 22.264861][ T24] audit: type=1400 audit(1707379455.639:66): avc: denied { execmem } for pid=287 comm="syz-executor294" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 22.269309][ T287] cgroup: Unknown subsys name 'net' [ 22.286122][ T24] audit: type=1400 audit(1707379455.649:67): avc: denied { mounton } for pid=287 comm="syz-executor294" path="/syzcgroup/unified" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 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) [ 22.313681][ T24] audit: type=1400 audit(1707379455.649:68): avc: denied { mount } for pid=287 comm="syz-executor294" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 22.314674][ T287] cgroup: Unknown subsys name 'devices' [ 22.336678][ T24] audit: type=1400 audit(1707379455.679:69): avc: denied { unmount } for pid=287 comm="syz-executor294" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 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) [ 22.510229][ T287] cgroup: Unknown subsys name 'hugetlb' [ 22.515919][ T287] 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") = ? 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.Y5Q3FH", 0700) = 0 chmod("./syzkaller.Y5Q3FH", 0777) = 0 chdir("./syzkaller.Y5Q3FH") = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555713b650) = 288 ./strace-static-x86_64: Process 288 attached [pid 288] set_robust_list(0x55555713b660, 24) = 0 [pid 288] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 288] setsid() = 1 [pid 288] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 288] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 288] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 288] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 288] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 288] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 288] unshare(CLONE_NEWNS) = 0 [pid 288] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 288] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 288] unshare(CLONE_NEWCGROUP) = 0 [pid 288] unshare(CLONE_NEWUTS) = 0 [pid 288] unshare(CLONE_SYSVSEM) = 0 [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] getpid() = 1 [pid 288] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<) = 0 [pid 288] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./0/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./0/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./0/cgroup.cpu") = 0 [pid 288] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./0/binderfs") = 0 [pid 288] umount2("./0/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./0/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./0/cgroup") = 0 [pid 288] umount2("./0/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./0/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./0/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./0") = 0 [pid 288] mkdir("./1", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555713b650) = 4 ./strace-static-x86_64: Process 291 attached [pid 291] set_robust_list(0x55555713b660, 24) = 0 [pid 291] chdir("./1") = 0 [pid 291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 291] setpgid(0, 0) = 0 [pid 291] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 291] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 291] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 291] write(3, "1000", 4) = 4 [pid 291] close(3) = 0 [pid 291] symlink("/dev/binderfs", "./binderfs") = 0 [pid 291] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 291] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 291] openat(3, "freezer.state", O_RDWR) = 4 [pid 291] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 291] openat(3, "tasks", O_RDWR) = 5 [pid 291] clone(child_stack=NULL, flags=0) = 5 [pid 291] write(5, "0x0000000000000005", 18) = 18 [pid 291] close(3) = 0 [pid 291] close(4) = 0 [pid 291] close(5) = 0 [pid 291] close(6) = -1 EBADF (Bad file descriptor) [pid 291] close(7) = -1 EBADF (Bad file descriptor) [pid 291] close(8) = -1 EBADF (Bad file descriptor) [pid 291] close(9) = -1 EBADF (Bad file descriptor) [pid 291] close(10) = -1 EBADF (Bad file descriptor) [pid 291] close(11) = -1 EBADF (Bad file descriptor) [pid 291] close(12) = -1 EBADF (Bad file descriptor) [pid 291] close(13) = -1 EBADF (Bad file descriptor) [pid 291] close(14) = -1 EBADF (Bad file descriptor) [pid 291] close(15) = -1 EBADF (Bad file descriptor) [pid 291] close(16) = -1 EBADF (Bad file descriptor) [pid 291] close(17) = -1 EBADF (Bad file descriptor) [pid 291] close(18) = -1 EBADF (Bad file descriptor) [pid 291] close(19) = -1 EBADF (Bad file descriptor) [pid 291] close(20) = -1 EBADF (Bad file descriptor) [pid 291] close(21) = -1 EBADF (Bad file descriptor) [pid 291] close(22) = -1 EBADF (Bad file descriptor) [pid 291] close(23) = -1 EBADF (Bad file descriptor) [pid 291] close(24) = -1 EBADF (Bad file descriptor) [pid 291] close(25) = -1 EBADF (Bad file descriptor) [pid 291] close(26) = -1 EBADF (Bad file descriptor) [pid 291] close(27) = -1 EBADF (Bad file descriptor) [pid 291] close(28) = -1 EBADF (Bad file descriptor) [pid 291] close(29) = -1 EBADF (Bad file descriptor) [pid 291] exit_group(0) = ? [pid 291] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 288] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 288] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./1/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./1/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./1/cgroup.cpu") = 0 [pid 288] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./1/binderfs") = 0 [pid 288] umount2("./1/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./1/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./1/cgroup") = 0 [pid 288] umount2("./1/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./1/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./1/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./1") = 0 [pid 288] mkdir("./2", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555713b650) = 6 ./strace-static-x86_64: Process 293 attached [pid 293] set_robust_list(0x55555713b660, 24) = 0 [pid 293] chdir("./2") = 0 [pid 293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 293] setpgid(0, 0) = 0 [pid 293] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 293] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 293] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 293] write(3, "1000", 4) = 4 [pid 293] close(3) = 0 [pid 293] symlink("/dev/binderfs", "./binderfs") = 0 [pid 293] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 293] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 293] openat(3, "freezer.state", O_RDWR) = 4 [pid 293] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 293] openat(3, "tasks", O_RDWR) = 5 [pid 293] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 294 attached ) = 7 [pid 293] write(5, "0x0000000000000007", 18) = 18 [pid 293] close(3) = 0 [pid 293] close(4) = 0 [pid 293] close(5) = 0 [pid 293] close(6) = -1 EBADF (Bad file descriptor) [pid 293] close(7) = -1 EBADF (Bad file descriptor) [pid 293] close(8) = -1 EBADF (Bad file descriptor) [pid 293] close(9) = -1 EBADF (Bad file descriptor) [pid 293] close(10) = -1 EBADF (Bad file descriptor) [pid 293] close(11) = -1 EBADF (Bad file descriptor) [pid 293] close(12) = -1 EBADF (Bad file descriptor) [pid 293] close(13) = -1 EBADF (Bad file descriptor) [pid 293] close(14) = -1 EBADF (Bad file descriptor) [pid 293] close(15) = -1 EBADF (Bad file descriptor) [pid 293] close(16) = -1 EBADF (Bad file descriptor) [pid 293] close(17) = -1 EBADF (Bad file descriptor) [pid 293] close(18) = -1 EBADF (Bad file descriptor) [pid 293] close(19) = -1 EBADF (Bad file descriptor) [pid 293] close(20) = -1 EBADF (Bad file descriptor) [pid 293] close(21) = -1 EBADF (Bad file descriptor) [pid 293] close(22) = -1 EBADF (Bad file descriptor) [pid 293] close(23) = -1 EBADF (Bad file descriptor) [pid 293] close(24) = -1 EBADF (Bad file descriptor) [pid 293] close(25) = -1 EBADF (Bad file descriptor) [pid 293] close(26) = -1 EBADF (Bad file descriptor) [pid 293] close(27) = -1 EBADF (Bad file descriptor) [pid 293] close(28) = -1 EBADF (Bad file descriptor) [pid 293] close(29) = -1 EBADF (Bad file descriptor) [pid 293] exit_group(0) = ? [pid 293] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 288] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./2/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./2/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./2/cgroup.cpu") = 0 [pid 288] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./2/binderfs") = 0 [pid 288] umount2("./2/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./2/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./2/cgroup") = 0 [pid 288] umount2("./2/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./2/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./2/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./2") = 0 [pid 288] mkdir("./3", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 295 attached [pid 295] set_robust_list(0x55555713b660, 24 [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 8 [pid 295] <... set_robust_list resumed>) = 0 [pid 295] chdir("./3") = 0 [pid 295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 295] setpgid(0, 0) = 0 [pid 295] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 295] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 295] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 295] write(3, "1000", 4) = 4 [pid 295] close(3) = 0 [pid 295] symlink("/dev/binderfs", "./binderfs") = 0 [pid 295] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 295] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 295] openat(3, "freezer.state", O_RDWR) = 4 [pid 295] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 295] openat(3, "tasks", O_RDWR) = 5 [pid 295] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 296 attached ) = 9 [pid 295] write(5, "0x0000000000000009", 18) = 18 [pid 295] close(3) = 0 [pid 295] close(4) = 0 [pid 295] close(5) = 0 [pid 295] close(6) = -1 EBADF (Bad file descriptor) [pid 295] close(7) = -1 EBADF (Bad file descriptor) [pid 295] close(8) = -1 EBADF (Bad file descriptor) [pid 295] close(9) = -1 EBADF (Bad file descriptor) [pid 295] close(10) = -1 EBADF (Bad file descriptor) [pid 295] close(11) = -1 EBADF (Bad file descriptor) [pid 295] close(12) = -1 EBADF (Bad file descriptor) [pid 295] close(13) = -1 EBADF (Bad file descriptor) [pid 295] close(14) = -1 EBADF (Bad file descriptor) [pid 295] close(15) = -1 EBADF (Bad file descriptor) [pid 295] close(16) = -1 EBADF (Bad file descriptor) [pid 295] close(17) = -1 EBADF (Bad file descriptor) [pid 295] close(18) = -1 EBADF (Bad file descriptor) [pid 295] close(19) = -1 EBADF (Bad file descriptor) [pid 295] close(20) = -1 EBADF (Bad file descriptor) [pid 295] close(21) = -1 EBADF (Bad file descriptor) [pid 295] close(22) = -1 EBADF (Bad file descriptor) [pid 295] close(23) = -1 EBADF (Bad file descriptor) [pid 295] close(24) = -1 EBADF (Bad file descriptor) [pid 295] close(25) = -1 EBADF (Bad file descriptor) [pid 295] close(26) = -1 EBADF (Bad file descriptor) [pid 295] close(27) = -1 EBADF (Bad file descriptor) [pid 295] close(28) = -1 EBADF (Bad file descriptor) [pid 295] close(29) = -1 EBADF (Bad file descriptor) [pid 295] exit_group(0) = ? [pid 295] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 288] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./3/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./3/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./3/cgroup.cpu") = 0 [pid 288] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./3/binderfs") = 0 [pid 288] umount2("./3/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./3/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./3/cgroup") = 0 [pid 288] umount2("./3/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./3/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./3/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./3") = 0 [pid 288] mkdir("./4", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 297 attached [pid 297] set_robust_list(0x55555713b660, 24) = 0 [pid 297] chdir("./4" [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 10 [pid 297] <... chdir resumed>) = 0 [pid 297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 297] setpgid(0, 0) = 0 [pid 297] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 297] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 297] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 297] write(3, "1000", 4) = 4 [pid 297] close(3) = 0 [pid 297] symlink("/dev/binderfs", "./binderfs") = 0 [pid 297] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 297] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 297] openat(3, "freezer.state", O_RDWR) = 4 [pid 297] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 297] openat(3, "tasks", O_RDWR) = 5 [pid 297] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 298 attached ) = 11 [pid 297] write(5, "0x000000000000000b", 18) = 18 [pid 297] close(3) = 0 [pid 297] close(4) = 0 [pid 297] close(5) = 0 [pid 297] close(6) = -1 EBADF (Bad file descriptor) [pid 297] close(7) = -1 EBADF (Bad file descriptor) [pid 297] close(8) = -1 EBADF (Bad file descriptor) [pid 297] close(9) = -1 EBADF (Bad file descriptor) [pid 297] close(10) = -1 EBADF (Bad file descriptor) [pid 297] close(11) = -1 EBADF (Bad file descriptor) [pid 297] close(12) = -1 EBADF (Bad file descriptor) [pid 297] close(13) = -1 EBADF (Bad file descriptor) [pid 297] close(14) = -1 EBADF (Bad file descriptor) [pid 297] close(15) = -1 EBADF (Bad file descriptor) [pid 297] close(16) = -1 EBADF (Bad file descriptor) [pid 297] close(17) = -1 EBADF (Bad file descriptor) [pid 297] close(18) = -1 EBADF (Bad file descriptor) [pid 297] close(19) = -1 EBADF (Bad file descriptor) [pid 297] close(20) = -1 EBADF (Bad file descriptor) [pid 297] close(21) = -1 EBADF (Bad file descriptor) [pid 297] close(22) = -1 EBADF (Bad file descriptor) [pid 297] close(23) = -1 EBADF (Bad file descriptor) [pid 297] close(24) = -1 EBADF (Bad file descriptor) [pid 297] close(25) = -1 EBADF (Bad file descriptor) [pid 297] close(26) = -1 EBADF (Bad file descriptor) [pid 297] close(27) = -1 EBADF (Bad file descriptor) [pid 297] close(28) = -1 EBADF (Bad file descriptor) [pid 297] close(29) = -1 EBADF (Bad file descriptor) [pid 297] exit_group(0) = ? [pid 297] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [ 22.711300][ T24] audit: type=1400 audit(1707379456.059:73): avc: denied { mounton } for pid=288 comm="syz-executor294" path="/dev/binderfs" dev="devtmpfs" ino=357 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1 [ 22.744426][ T24] audit: type=1400 audit(1707379456.059:74): avc: denied { mount } for pid=288 comm="syz-executor294" name="/" dev="binder" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [pid 288] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 288] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./4/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./4/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./4/cgroup.cpu") = 0 [pid 288] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./4/binderfs") = 0 [pid 288] umount2("./4/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./4/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./4/cgroup") = 0 [pid 288] umount2("./4/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./4/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./4/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./4") = 0 [pid 288] mkdir("./5", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 299 attached [pid 299] set_robust_list(0x55555713b660, 24) = 0 [pid 299] chdir("./5" [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 12 [pid 299] <... chdir resumed>) = 0 [pid 299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 299] setpgid(0, 0) = 0 [pid 299] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 299] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 299] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 299] write(3, "1000", 4) = 4 [pid 299] close(3) = 0 [pid 299] symlink("/dev/binderfs", "./binderfs") = 0 [pid 299] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 299] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 299] openat(3, "freezer.state", O_RDWR) = 4 [pid 299] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 299] openat(3, "tasks", O_RDWR) = 5 [pid 299] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 300 attached ) = 13 [pid 299] write(5, "0x000000000000000d", 18) = 18 [pid 299] close(3) = 0 [pid 299] close(4) = 0 [pid 299] close(5) = 0 [pid 299] close(6) = -1 EBADF (Bad file descriptor) [pid 299] close(7) = -1 EBADF (Bad file descriptor) [pid 299] close(8) = -1 EBADF (Bad file descriptor) [pid 299] close(9) = -1 EBADF (Bad file descriptor) [pid 299] close(10) = -1 EBADF (Bad file descriptor) [pid 299] close(11) = -1 EBADF (Bad file descriptor) [pid 299] close(12) = -1 EBADF (Bad file descriptor) [pid 299] close(13) = -1 EBADF (Bad file descriptor) [pid 299] close(14) = -1 EBADF (Bad file descriptor) [pid 299] close(15) = -1 EBADF (Bad file descriptor) [pid 299] close(16) = -1 EBADF (Bad file descriptor) [pid 299] close(17) = -1 EBADF (Bad file descriptor) [pid 299] close(18) = -1 EBADF (Bad file descriptor) [pid 299] close(19) = -1 EBADF (Bad file descriptor) [pid 299] close(20) = -1 EBADF (Bad file descriptor) [pid 299] close(21) = -1 EBADF (Bad file descriptor) [pid 299] close(22) = -1 EBADF (Bad file descriptor) [pid 299] close(23) = -1 EBADF (Bad file descriptor) [pid 299] close(24) = -1 EBADF (Bad file descriptor) [pid 299] close(25) = -1 EBADF (Bad file descriptor) [pid 299] close(26) = -1 EBADF (Bad file descriptor) [pid 299] close(27) = -1 EBADF (Bad file descriptor) [pid 299] close(28) = -1 EBADF (Bad file descriptor) [pid 299] close(29) = -1 EBADF (Bad file descriptor) [pid 299] exit_group(0) = ? [pid 299] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 288] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./5/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./5/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./5/cgroup.cpu") = 0 [pid 288] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./5/binderfs") = 0 [pid 288] umount2("./5/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./5/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./5/cgroup") = 0 [pid 288] umount2("./5/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./5/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./5/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./5") = 0 [pid 288] mkdir("./6", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 301 attached [pid 301] set_robust_list(0x55555713b660, 24) = 0 [pid 301] chdir("./6" [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 14 [pid 301] <... chdir resumed>) = 0 [pid 301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 301] setpgid(0, 0) = 0 [pid 301] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 301] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 301] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 301] write(3, "1000", 4) = 4 [pid 301] close(3) = 0 [pid 301] symlink("/dev/binderfs", "./binderfs") = 0 [pid 301] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 301] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 301] openat(3, "freezer.state", O_RDWR) = 4 [pid 301] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 301] openat(3, "tasks", O_RDWR) = 5 [pid 301] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 302 attached ) = 15 [pid 301] write(5, "0x000000000000000f", 18) = 18 [pid 301] close(3) = 0 [pid 301] close(4) = 0 [pid 301] close(5) = 0 [pid 301] close(6) = -1 EBADF (Bad file descriptor) [pid 301] close(7) = -1 EBADF (Bad file descriptor) [pid 301] close(8) = -1 EBADF (Bad file descriptor) [pid 301] close(9) = -1 EBADF (Bad file descriptor) [pid 301] close(10) = -1 EBADF (Bad file descriptor) [pid 301] close(11) = -1 EBADF (Bad file descriptor) [pid 301] close(12) = -1 EBADF (Bad file descriptor) [pid 301] close(13) = -1 EBADF (Bad file descriptor) [pid 301] close(14) = -1 EBADF (Bad file descriptor) [pid 301] close(15) = -1 EBADF (Bad file descriptor) [pid 301] close(16) = -1 EBADF (Bad file descriptor) [pid 301] close(17) = -1 EBADF (Bad file descriptor) [pid 301] close(18) = -1 EBADF (Bad file descriptor) [pid 301] close(19) = -1 EBADF (Bad file descriptor) [pid 301] close(20) = -1 EBADF (Bad file descriptor) [pid 301] close(21) = -1 EBADF (Bad file descriptor) [pid 301] close(22) = -1 EBADF (Bad file descriptor) [pid 301] close(23) = -1 EBADF (Bad file descriptor) [pid 301] close(24) = -1 EBADF (Bad file descriptor) [pid 301] close(25) = -1 EBADF (Bad file descriptor) [pid 301] close(26) = -1 EBADF (Bad file descriptor) [pid 301] close(27) = -1 EBADF (Bad file descriptor) [pid 301] close(28) = -1 EBADF (Bad file descriptor) [pid 301] close(29) = -1 EBADF (Bad file descriptor) [pid 301] exit_group(0) = ? [pid 301] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 288] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./6/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./6/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./6/cgroup.cpu") = 0 [pid 288] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./6/binderfs") = 0 [pid 288] umount2("./6/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./6/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./6/cgroup") = 0 [pid 288] umount2("./6/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./6/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./6/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./6") = 0 [pid 288] mkdir("./7", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 303 attached [pid 303] set_robust_list(0x55555713b660, 24) = 0 [pid 303] chdir("./7" [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 16 [pid 303] <... chdir resumed>) = 0 [pid 303] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 303] setpgid(0, 0) = 0 [pid 303] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 303] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 303] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 303] write(3, "1000", 4) = 4 [pid 303] close(3) = 0 [pid 303] symlink("/dev/binderfs", "./binderfs") = 0 [pid 303] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 303] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 303] openat(3, "freezer.state", O_RDWR) = 4 [pid 303] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 303] openat(3, "tasks", O_RDWR) = 5 [pid 303] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 304 attached ) = 17 [pid 303] write(5, "0x0000000000000011", 18) = 18 [pid 303] close(3) = 0 [pid 303] close(4) = 0 [pid 303] close(5) = 0 [pid 303] close(6) = -1 EBADF (Bad file descriptor) [pid 303] close(7) = -1 EBADF (Bad file descriptor) [pid 303] close(8) = -1 EBADF (Bad file descriptor) [pid 303] close(9) = -1 EBADF (Bad file descriptor) [pid 303] close(10) = -1 EBADF (Bad file descriptor) [pid 303] close(11) = -1 EBADF (Bad file descriptor) [pid 303] close(12) = -1 EBADF (Bad file descriptor) [pid 303] close(13) = -1 EBADF (Bad file descriptor) [pid 303] close(14) = -1 EBADF (Bad file descriptor) [pid 303] close(15) = -1 EBADF (Bad file descriptor) [pid 303] close(16) = -1 EBADF (Bad file descriptor) [pid 303] close(17) = -1 EBADF (Bad file descriptor) [pid 303] close(18) = -1 EBADF (Bad file descriptor) [pid 303] close(19) = -1 EBADF (Bad file descriptor) [pid 303] close(20) = -1 EBADF (Bad file descriptor) [pid 303] close(21) = -1 EBADF (Bad file descriptor) [pid 303] close(22) = -1 EBADF (Bad file descriptor) [pid 303] close(23) = -1 EBADF (Bad file descriptor) [pid 303] close(24) = -1 EBADF (Bad file descriptor) [pid 303] close(25) = -1 EBADF (Bad file descriptor) [pid 303] close(26) = -1 EBADF (Bad file descriptor) [pid 303] close(27) = -1 EBADF (Bad file descriptor) [pid 303] close(28) = -1 EBADF (Bad file descriptor) [pid 303] close(29) = -1 EBADF (Bad file descriptor) [pid 303] exit_group(0) = ? [pid 303] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=16, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 288] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./7/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./7/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./7/cgroup.cpu") = 0 [pid 288] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./7/binderfs") = 0 [pid 288] umount2("./7/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./7/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./7/cgroup") = 0 [pid 288] umount2("./7/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./7/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./7/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./7") = 0 [pid 288] mkdir("./8", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 305 attached [pid 305] set_robust_list(0x55555713b660, 24) = 0 [pid 305] chdir("./8" [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 18 [pid 305] <... chdir resumed>) = 0 [pid 305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 305] setpgid(0, 0) = 0 [pid 305] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 305] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 305] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 305] write(3, "1000", 4) = 4 [pid 305] close(3) = 0 [pid 305] symlink("/dev/binderfs", "./binderfs") = 0 [pid 305] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 305] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 305] openat(3, "freezer.state", O_RDWR) = 4 [pid 305] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 305] openat(3, "tasks", O_RDWR) = 5 [pid 305] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 306 attached ) = 19 [pid 305] write(5, "0x0000000000000013", 18) = 18 [pid 305] close(3) = 0 [pid 305] close(4) = 0 [pid 305] close(5) = 0 [pid 305] close(6) = -1 EBADF (Bad file descriptor) [pid 305] close(7) = -1 EBADF (Bad file descriptor) [pid 305] close(8) = -1 EBADF (Bad file descriptor) [pid 305] close(9) = -1 EBADF (Bad file descriptor) [pid 305] close(10) = -1 EBADF (Bad file descriptor) [pid 305] close(11) = -1 EBADF (Bad file descriptor) [pid 305] close(12) = -1 EBADF (Bad file descriptor) [pid 305] close(13) = -1 EBADF (Bad file descriptor) [pid 305] close(14) = -1 EBADF (Bad file descriptor) [pid 305] close(15) = -1 EBADF (Bad file descriptor) [pid 305] close(16) = -1 EBADF (Bad file descriptor) [pid 305] close(17) = -1 EBADF (Bad file descriptor) [pid 305] close(18) = -1 EBADF (Bad file descriptor) [pid 305] close(19) = -1 EBADF (Bad file descriptor) [pid 305] close(20) = -1 EBADF (Bad file descriptor) [pid 305] close(21) = -1 EBADF (Bad file descriptor) [pid 305] close(22) = -1 EBADF (Bad file descriptor) [pid 305] close(23) = -1 EBADF (Bad file descriptor) [pid 305] close(24) = -1 EBADF (Bad file descriptor) [pid 305] close(25) = -1 EBADF (Bad file descriptor) [pid 305] close(26) = -1 EBADF (Bad file descriptor) [pid 305] close(27) = -1 EBADF (Bad file descriptor) [pid 305] close(28) = -1 EBADF (Bad file descriptor) [pid 305] close(29) = -1 EBADF (Bad file descriptor) [pid 305] exit_group(0) = ? [pid 305] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=18, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./8/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./8/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./8/cgroup.cpu") = 0 [pid 288] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./8/binderfs") = 0 [pid 288] umount2("./8/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./8/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./8/cgroup") = 0 [pid 288] umount2("./8/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./8/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./8/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./8") = 0 [pid 288] mkdir("./9", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 307 attached [pid 307] set_robust_list(0x55555713b660, 24) = 0 [pid 307] chdir("./9") = 0 [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 20 [pid 307] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 307] setpgid(0, 0) = 0 [pid 307] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 307] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 307] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 307] write(3, "1000", 4) = 4 [pid 307] close(3) = 0 [pid 307] symlink("/dev/binderfs", "./binderfs") = 0 [pid 307] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 307] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 307] openat(3, "freezer.state", O_RDWR) = 4 [pid 307] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 307] openat(3, "tasks", O_RDWR) = 5 [pid 307] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 308 attached ) = 21 [pid 307] write(5, "0x0000000000000015", 18) = 18 [pid 307] close(3) = 0 [pid 307] close(4) = 0 [pid 307] close(5) = 0 [pid 307] close(6) = -1 EBADF (Bad file descriptor) [pid 307] close(7) = -1 EBADF (Bad file descriptor) [pid 307] close(8) = -1 EBADF (Bad file descriptor) [pid 307] close(9) = -1 EBADF (Bad file descriptor) [pid 307] close(10) = -1 EBADF (Bad file descriptor) [pid 307] close(11) = -1 EBADF (Bad file descriptor) [pid 307] close(12) = -1 EBADF (Bad file descriptor) [pid 307] close(13) = -1 EBADF (Bad file descriptor) [pid 307] close(14) = -1 EBADF (Bad file descriptor) [pid 307] close(15) = -1 EBADF (Bad file descriptor) [pid 307] close(16) = -1 EBADF (Bad file descriptor) [pid 307] close(17) = -1 EBADF (Bad file descriptor) [pid 307] close(18) = -1 EBADF (Bad file descriptor) [pid 307] close(19) = -1 EBADF (Bad file descriptor) [pid 307] close(20) = -1 EBADF (Bad file descriptor) [pid 307] close(21) = -1 EBADF (Bad file descriptor) [pid 307] close(22) = -1 EBADF (Bad file descriptor) [pid 307] close(23) = -1 EBADF (Bad file descriptor) [pid 307] close(24) = -1 EBADF (Bad file descriptor) [pid 307] close(25) = -1 EBADF (Bad file descriptor) [pid 307] close(26) = -1 EBADF (Bad file descriptor) [pid 307] close(27) = -1 EBADF (Bad file descriptor) [pid 307] close(28) = -1 EBADF (Bad file descriptor) [pid 307] close(29) = -1 EBADF (Bad file descriptor) [pid 307] exit_group(0) = ? [pid 307] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./9/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./9/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./9/cgroup.cpu") = 0 [pid 288] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./9/binderfs") = 0 [pid 288] umount2("./9/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./9/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./9/cgroup") = 0 [pid 288] umount2("./9/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./9/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./9/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./9") = 0 [pid 288] mkdir("./10", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 309 attached [pid 309] set_robust_list(0x55555713b660, 24) = 0 [pid 309] chdir("./10" [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 22 [pid 309] <... chdir resumed>) = 0 [pid 309] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 309] setpgid(0, 0) = 0 [pid 309] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 309] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 309] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 309] write(3, "1000", 4) = 4 [pid 309] close(3) = 0 [pid 309] symlink("/dev/binderfs", "./binderfs") = 0 [pid 309] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 309] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 309] openat(3, "freezer.state", O_RDWR) = 4 [pid 309] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 309] openat(3, "tasks", O_RDWR) = 5 [pid 309] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 310 attached ) = 23 [pid 309] write(5, "0x0000000000000017", 18) = 18 [pid 309] close(3) = 0 [pid 309] close(4) = 0 [pid 309] close(5) = 0 [pid 309] close(6) = -1 EBADF (Bad file descriptor) [pid 309] close(7) = -1 EBADF (Bad file descriptor) [pid 309] close(8) = -1 EBADF (Bad file descriptor) [pid 309] close(9) = -1 EBADF (Bad file descriptor) [pid 309] close(10) = -1 EBADF (Bad file descriptor) [pid 309] close(11) = -1 EBADF (Bad file descriptor) [pid 309] close(12) = -1 EBADF (Bad file descriptor) [pid 309] close(13) = -1 EBADF (Bad file descriptor) [pid 309] close(14) = -1 EBADF (Bad file descriptor) [pid 309] close(15) = -1 EBADF (Bad file descriptor) [pid 309] close(16) = -1 EBADF (Bad file descriptor) [pid 309] close(17) = -1 EBADF (Bad file descriptor) [pid 309] close(18) = -1 EBADF (Bad file descriptor) [pid 309] close(19) = -1 EBADF (Bad file descriptor) [pid 309] close(20) = -1 EBADF (Bad file descriptor) [pid 309] close(21) = -1 EBADF (Bad file descriptor) [pid 309] close(22) = -1 EBADF (Bad file descriptor) [pid 309] close(23) = -1 EBADF (Bad file descriptor) [pid 309] close(24) = -1 EBADF (Bad file descriptor) [pid 309] close(25) = -1 EBADF (Bad file descriptor) [pid 309] close(26) = -1 EBADF (Bad file descriptor) [pid 309] close(27) = -1 EBADF (Bad file descriptor) [pid 309] close(28) = -1 EBADF (Bad file descriptor) [pid 309] close(29) = -1 EBADF (Bad file descriptor) [pid 309] exit_group(0) = ? [pid 309] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./10/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./10/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./10/cgroup.cpu") = 0 [pid 288] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./10/binderfs") = 0 [pid 288] umount2("./10/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./10/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./10/cgroup") = 0 [pid 288] umount2("./10/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./10/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./10/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./10") = 0 [pid 288] mkdir("./11", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 311 attached [pid 311] set_robust_list(0x55555713b660, 24) = 0 [pid 311] chdir("./11") = 0 [pid 311] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 311] setpgid(0, 0) = 0 [pid 311] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 24 [pid 311] <... symlink resumed>) = 0 [pid 311] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 311] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 311] write(3, "1000", 4) = 4 [pid 311] close(3) = 0 [pid 311] symlink("/dev/binderfs", "./binderfs") = 0 [pid 311] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 311] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 311] openat(3, "freezer.state", O_RDWR) = 4 [pid 311] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 311] openat(3, "tasks", O_RDWR) = 5 [pid 311] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 312 attached ) = 25 [pid 311] write(5, "0x0000000000000019", 18) = 18 [pid 311] close(3) = 0 [pid 311] close(4) = 0 [pid 311] close(5) = 0 [pid 311] close(6) = -1 EBADF (Bad file descriptor) [pid 311] close(7) = -1 EBADF (Bad file descriptor) [pid 311] close(8) = -1 EBADF (Bad file descriptor) [pid 311] close(9) = -1 EBADF (Bad file descriptor) [pid 311] close(10) = -1 EBADF (Bad file descriptor) [pid 311] close(11) = -1 EBADF (Bad file descriptor) [pid 311] close(12) = -1 EBADF (Bad file descriptor) [pid 311] close(13) = -1 EBADF (Bad file descriptor) [pid 311] close(14) = -1 EBADF (Bad file descriptor) [pid 311] close(15) = -1 EBADF (Bad file descriptor) [pid 311] close(16) = -1 EBADF (Bad file descriptor) [pid 311] close(17) = -1 EBADF (Bad file descriptor) [pid 311] close(18) = -1 EBADF (Bad file descriptor) [pid 311] close(19) = -1 EBADF (Bad file descriptor) [pid 311] close(20) = -1 EBADF (Bad file descriptor) [pid 311] close(21) = -1 EBADF (Bad file descriptor) [pid 311] close(22) = -1 EBADF (Bad file descriptor) [pid 311] close(23) = -1 EBADF (Bad file descriptor) [pid 311] close(24) = -1 EBADF (Bad file descriptor) [pid 311] close(25) = -1 EBADF (Bad file descriptor) [pid 311] close(26) = -1 EBADF (Bad file descriptor) [pid 311] close(27) = -1 EBADF (Bad file descriptor) [pid 311] close(28) = -1 EBADF (Bad file descriptor) [pid 311] close(29) = -1 EBADF (Bad file descriptor) [pid 311] exit_group(0) = ? [pid 311] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=24, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./11/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./11/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./11/cgroup.cpu") = 0 [pid 288] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./11/binderfs") = 0 [pid 288] umount2("./11/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./11/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./11/cgroup") = 0 [pid 288] umount2("./11/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./11/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./11/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./11") = 0 [pid 288] mkdir("./12", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 313 attached [pid 313] set_robust_list(0x55555713b660, 24) = 0 [pid 313] chdir("./12") = 0 [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 26 [pid 313] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 313] setpgid(0, 0) = 0 [pid 313] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 313] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 313] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 313] write(3, "1000", 4) = 4 [pid 313] close(3) = 0 [pid 313] symlink("/dev/binderfs", "./binderfs") = 0 [pid 313] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 313] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 313] openat(3, "freezer.state", O_RDWR) = 4 [pid 313] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 313] openat(3, "tasks", O_RDWR) = 5 [pid 313] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 314 attached ) = 27 [pid 313] write(5, "0x000000000000001b", 18) = 18 [pid 313] close(3) = 0 [pid 313] close(4) = 0 [pid 313] close(5) = 0 [pid 313] close(6) = -1 EBADF (Bad file descriptor) [pid 313] close(7) = -1 EBADF (Bad file descriptor) [pid 313] close(8) = -1 EBADF (Bad file descriptor) [pid 313] close(9) = -1 EBADF (Bad file descriptor) [pid 313] close(10) = -1 EBADF (Bad file descriptor) [pid 313] close(11) = -1 EBADF (Bad file descriptor) [pid 313] close(12) = -1 EBADF (Bad file descriptor) [pid 313] close(13) = -1 EBADF (Bad file descriptor) [pid 313] close(14) = -1 EBADF (Bad file descriptor) [pid 313] close(15) = -1 EBADF (Bad file descriptor) [pid 313] close(16) = -1 EBADF (Bad file descriptor) [pid 313] close(17) = -1 EBADF (Bad file descriptor) [pid 313] close(18) = -1 EBADF (Bad file descriptor) [pid 313] close(19) = -1 EBADF (Bad file descriptor) [pid 313] close(20) = -1 EBADF (Bad file descriptor) [pid 313] close(21) = -1 EBADF (Bad file descriptor) [pid 313] close(22) = -1 EBADF (Bad file descriptor) [pid 313] close(23) = -1 EBADF (Bad file descriptor) [pid 313] close(24) = -1 EBADF (Bad file descriptor) [pid 313] close(25) = -1 EBADF (Bad file descriptor) [pid 313] close(26) = -1 EBADF (Bad file descriptor) [pid 313] close(27) = -1 EBADF (Bad file descriptor) [pid 313] close(28) = -1 EBADF (Bad file descriptor) [pid 313] close(29) = -1 EBADF (Bad file descriptor) [pid 313] exit_group(0) = ? [pid 313] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=26, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 288] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./12/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./12/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./12/cgroup.cpu") = 0 [pid 288] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./12/binderfs") = 0 [pid 288] umount2("./12/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./12/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./12/cgroup") = 0 [pid 288] umount2("./12/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./12/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./12/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./12") = 0 [pid 288] mkdir("./13", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 315 attached [pid 315] set_robust_list(0x55555713b660, 24) = 0 [pid 315] chdir("./13") = 0 [pid 315] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 315] setpgid(0, 0) = 0 [pid 315] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 28 [pid 315] <... symlink resumed>) = 0 [pid 315] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 315] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 315] write(3, "1000", 4) = 4 [pid 315] close(3) = 0 [pid 315] symlink("/dev/binderfs", "./binderfs") = 0 [pid 315] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 315] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 315] openat(3, "freezer.state", O_RDWR) = 4 [pid 315] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 315] openat(3, "tasks", O_RDWR) = 5 [pid 315] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 316 attached ) = 29 [pid 315] write(5, "0x000000000000001d", 18) = 18 [pid 315] close(3) = 0 [pid 315] close(4) = 0 [pid 315] close(5) = 0 [pid 315] close(6) = -1 EBADF (Bad file descriptor) [pid 315] close(7) = -1 EBADF (Bad file descriptor) [pid 315] close(8) = -1 EBADF (Bad file descriptor) [pid 315] close(9) = -1 EBADF (Bad file descriptor) [pid 315] close(10) = -1 EBADF (Bad file descriptor) [pid 315] close(11) = -1 EBADF (Bad file descriptor) [pid 315] close(12) = -1 EBADF (Bad file descriptor) [pid 315] close(13) = -1 EBADF (Bad file descriptor) [pid 315] close(14) = -1 EBADF (Bad file descriptor) [pid 315] close(15) = -1 EBADF (Bad file descriptor) [pid 315] close(16) = -1 EBADF (Bad file descriptor) [pid 315] close(17) = -1 EBADF (Bad file descriptor) [pid 315] close(18) = -1 EBADF (Bad file descriptor) [pid 315] close(19) = -1 EBADF (Bad file descriptor) [pid 315] close(20) = -1 EBADF (Bad file descriptor) [pid 315] close(21) = -1 EBADF (Bad file descriptor) [pid 315] close(22) = -1 EBADF (Bad file descriptor) [pid 315] close(23) = -1 EBADF (Bad file descriptor) [pid 315] close(24) = -1 EBADF (Bad file descriptor) [pid 315] close(25) = -1 EBADF (Bad file descriptor) [pid 315] close(26) = -1 EBADF (Bad file descriptor) [pid 315] close(27) = -1 EBADF (Bad file descriptor) [pid 315] close(28) = -1 EBADF (Bad file descriptor) [pid 315] close(29) = -1 EBADF (Bad file descriptor) [pid 315] exit_group(0) = ? [pid 315] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=28, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 288] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./13/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./13/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./13/cgroup.cpu") = 0 [pid 288] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./13/binderfs") = 0 [pid 288] umount2("./13/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./13/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./13/cgroup") = 0 [pid 288] umount2("./13/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./13/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./13/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./13") = 0 [pid 288] mkdir("./14", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 317 attached [pid 317] set_robust_list(0x55555713b660, 24) = 0 [pid 317] chdir("./14") = 0 [pid 317] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 317] setpgid(0, 0) = 0 [pid 317] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 317] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 317] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 30 [pid 317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 317] write(3, "1000", 4) = 4 [pid 317] close(3) = 0 [pid 317] symlink("/dev/binderfs", "./binderfs") = 0 [pid 317] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 317] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 317] openat(3, "freezer.state", O_RDWR) = 4 [pid 317] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 317] openat(3, "tasks", O_RDWR) = 5 [pid 317] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 318 attached ) = 31 [pid 317] write(5, "0x000000000000001f", 18) = 18 [pid 317] close(3) = 0 [pid 317] close(4) = 0 [pid 317] close(5) = 0 [pid 317] close(6) = -1 EBADF (Bad file descriptor) [pid 317] close(7) = -1 EBADF (Bad file descriptor) [pid 317] close(8) = -1 EBADF (Bad file descriptor) [pid 317] close(9) = -1 EBADF (Bad file descriptor) [pid 317] close(10) = -1 EBADF (Bad file descriptor) [pid 317] close(11) = -1 EBADF (Bad file descriptor) [pid 317] close(12) = -1 EBADF (Bad file descriptor) [pid 317] close(13) = -1 EBADF (Bad file descriptor) [pid 317] close(14) = -1 EBADF (Bad file descriptor) [pid 317] close(15) = -1 EBADF (Bad file descriptor) [pid 317] close(16) = -1 EBADF (Bad file descriptor) [pid 317] close(17) = -1 EBADF (Bad file descriptor) [pid 317] close(18) = -1 EBADF (Bad file descriptor) [pid 317] close(19) = -1 EBADF (Bad file descriptor) [pid 317] close(20) = -1 EBADF (Bad file descriptor) [pid 317] close(21) = -1 EBADF (Bad file descriptor) [pid 317] close(22) = -1 EBADF (Bad file descriptor) [pid 317] close(23) = -1 EBADF (Bad file descriptor) [pid 317] close(24) = -1 EBADF (Bad file descriptor) [pid 317] close(25) = -1 EBADF (Bad file descriptor) [pid 317] close(26) = -1 EBADF (Bad file descriptor) [pid 317] close(27) = -1 EBADF (Bad file descriptor) [pid 317] close(28) = -1 EBADF (Bad file descriptor) [pid 317] close(29) = -1 EBADF (Bad file descriptor) [pid 317] exit_group(0) = ? [pid 317] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=30, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./14/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./14/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./14/cgroup.cpu") = 0 [pid 288] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./14/binderfs") = 0 [pid 288] umount2("./14/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./14/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./14/cgroup") = 0 [pid 288] umount2("./14/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./14/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./14/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./14") = 0 [pid 288] mkdir("./15", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 319 attached [pid 319] set_robust_list(0x55555713b660, 24 [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 32 [pid 319] <... set_robust_list resumed>) = 0 [pid 319] chdir("./15") = 0 [pid 319] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 319] setpgid(0, 0) = 0 [pid 319] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 319] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 319] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 319] write(3, "1000", 4) = 4 [pid 319] close(3) = 0 [pid 319] symlink("/dev/binderfs", "./binderfs") = 0 [pid 319] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 319] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 319] openat(3, "freezer.state", O_RDWR) = 4 [pid 319] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 319] openat(3, "tasks", O_RDWR) = 5 [pid 319] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 320 attached ) = 33 [pid 319] write(5, "0x0000000000000021", 18) = 18 [pid 319] close(3) = 0 [pid 319] close(4) = 0 [pid 319] close(5) = 0 [pid 319] close(6) = -1 EBADF (Bad file descriptor) [pid 319] close(7) = -1 EBADF (Bad file descriptor) [pid 319] close(8) = -1 EBADF (Bad file descriptor) [pid 319] close(9) = -1 EBADF (Bad file descriptor) [pid 319] close(10) = -1 EBADF (Bad file descriptor) [pid 319] close(11) = -1 EBADF (Bad file descriptor) [pid 319] close(12) = -1 EBADF (Bad file descriptor) [pid 319] close(13) = -1 EBADF (Bad file descriptor) [pid 319] close(14) = -1 EBADF (Bad file descriptor) [pid 319] close(15) = -1 EBADF (Bad file descriptor) [pid 319] close(16) = -1 EBADF (Bad file descriptor) [pid 319] close(17) = -1 EBADF (Bad file descriptor) [pid 319] close(18) = -1 EBADF (Bad file descriptor) [pid 319] close(19) = -1 EBADF (Bad file descriptor) [pid 319] close(20) = -1 EBADF (Bad file descriptor) [pid 319] close(21) = -1 EBADF (Bad file descriptor) [pid 319] close(22) = -1 EBADF (Bad file descriptor) [pid 319] close(23) = -1 EBADF (Bad file descriptor) [pid 319] close(24) = -1 EBADF (Bad file descriptor) [pid 319] close(25) = -1 EBADF (Bad file descriptor) [pid 319] close(26) = -1 EBADF (Bad file descriptor) [pid 319] close(27) = -1 EBADF (Bad file descriptor) [pid 319] close(28) = -1 EBADF (Bad file descriptor) [pid 319] close(29) = -1 EBADF (Bad file descriptor) [pid 319] exit_group(0) = ? [pid 319] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=32, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./15/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./15/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./15/cgroup.cpu") = 0 [pid 288] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./15/binderfs") = 0 [pid 288] umount2("./15/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./15/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./15/cgroup") = 0 [pid 288] umount2("./15/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./15/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./15/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./15") = 0 [pid 288] mkdir("./16", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 321 attached [pid 321] set_robust_list(0x55555713b660, 24) = 0 [pid 321] chdir("./16") = 0 [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 34 [pid 321] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 321] setpgid(0, 0) = 0 [pid 321] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 321] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 321] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 321] write(3, "1000", 4) = 4 [pid 321] close(3) = 0 [pid 321] symlink("/dev/binderfs", "./binderfs") = 0 [pid 321] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 321] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 321] openat(3, "freezer.state", O_RDWR) = 4 [pid 321] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 321] openat(3, "tasks", O_RDWR) = 5 [pid 321] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 322 attached ) = 35 [pid 321] write(5, "0x0000000000000023", 18) = 18 [pid 321] close(3) = 0 [pid 321] close(4) = 0 [pid 321] close(5) = 0 [pid 321] close(6) = -1 EBADF (Bad file descriptor) [pid 321] close(7) = -1 EBADF (Bad file descriptor) [pid 321] close(8) = -1 EBADF (Bad file descriptor) [pid 321] close(9) = -1 EBADF (Bad file descriptor) [pid 321] close(10) = -1 EBADF (Bad file descriptor) [pid 321] close(11) = -1 EBADF (Bad file descriptor) [pid 321] close(12) = -1 EBADF (Bad file descriptor) [pid 321] close(13) = -1 EBADF (Bad file descriptor) [pid 321] close(14) = -1 EBADF (Bad file descriptor) [pid 321] close(15) = -1 EBADF (Bad file descriptor) [pid 321] close(16) = -1 EBADF (Bad file descriptor) [pid 321] close(17) = -1 EBADF (Bad file descriptor) [pid 321] close(18) = -1 EBADF (Bad file descriptor) [pid 321] close(19) = -1 EBADF (Bad file descriptor) [pid 321] close(20) = -1 EBADF (Bad file descriptor) [pid 321] close(21) = -1 EBADF (Bad file descriptor) [pid 321] close(22) = -1 EBADF (Bad file descriptor) [pid 321] close(23) = -1 EBADF (Bad file descriptor) [pid 321] close(24) = -1 EBADF (Bad file descriptor) [pid 321] close(25) = -1 EBADF (Bad file descriptor) [pid 321] close(26) = -1 EBADF (Bad file descriptor) [pid 321] close(27) = -1 EBADF (Bad file descriptor) [pid 321] close(28) = -1 EBADF (Bad file descriptor) [pid 321] close(29) = -1 EBADF (Bad file descriptor) [pid 321] exit_group(0) = ? [pid 321] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=34, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 288] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./16/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./16/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./16/cgroup.cpu") = 0 [pid 288] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./16/binderfs") = 0 [pid 288] umount2("./16/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./16/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./16/cgroup") = 0 [pid 288] umount2("./16/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./16/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./16/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./16") = 0 [pid 288] mkdir("./17", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 323 attached [pid 323] set_robust_list(0x55555713b660, 24) = 0 [pid 323] chdir("./17" [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 36 [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 ) = 37 [pid 323] write(5, "0x0000000000000025", 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 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=36, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 288] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./17/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./17/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./17/cgroup.cpu") = 0 [pid 288] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./17/binderfs") = 0 [pid 288] umount2("./17/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./17/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./17/cgroup") = 0 [pid 288] umount2("./17/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./17/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./17/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./17") = 0 [pid 288] mkdir("./18", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 325 attached , child_tidptr=0x55555713b650) = 38 [pid 325] set_robust_list(0x55555713b660, 24) = 0 [pid 325] chdir("./18") = 0 [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 ) = 39 [pid 325] write(5, "0x0000000000000027", 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 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=38, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 288] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./18/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./18/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./18/cgroup.cpu") = 0 [pid 288] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./18/binderfs") = 0 [pid 288] umount2("./18/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./18/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./18/cgroup") = 0 [pid 288] umount2("./18/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./18/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./18/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./18") = 0 [pid 288] mkdir("./19", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 327 attached [pid 327] set_robust_list(0x55555713b660, 24 [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 40 [pid 327] <... set_robust_list resumed>) = 0 [pid 327] chdir("./19") = 0 [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 ) = 41 [pid 327] write(5, "0x0000000000000029", 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 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=40, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./19/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./19/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./19/cgroup.cpu") = 0 [pid 288] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./19/binderfs") = 0 [pid 288] umount2("./19/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./19/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./19/cgroup") = 0 [pid 288] umount2("./19/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./19/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./19/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./19") = 0 [pid 288] mkdir("./20", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 329 attached [pid 329] set_robust_list(0x55555713b660, 24) = 0 [pid 329] chdir("./20") = 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" [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 42 [pid 329] <... symlink resumed>) = 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./strace-static-x86_64: Process 331 attached ) = 43 [pid 329] write(5, "0x000000000000002b", 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 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=42, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 288] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./20/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./20/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./20/cgroup.cpu") = 0 [pid 288] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./20/binderfs") = 0 [pid 288] umount2("./20/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./20/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./20/cgroup") = 0 [pid 288] umount2("./20/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./20/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./20/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./20") = 0 [pid 288] mkdir("./21", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 332 attached [pid 332] set_robust_list(0x55555713b660, 24 [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 44 [pid 332] <... set_robust_list resumed>) = 0 [pid 332] chdir("./21") = 0 [pid 332] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 332] setpgid(0, 0) = 0 [pid 332] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 332] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 332] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 332] write(3, "1000", 4) = 4 [pid 332] close(3) = 0 [pid 332] symlink("/dev/binderfs", "./binderfs") = 0 [pid 332] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 332] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 332] openat(3, "freezer.state", O_RDWR) = 4 [pid 332] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 332] openat(3, "tasks", O_RDWR) = 5 [pid 332] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 333 attached ) = 45 [pid 332] write(5, "0x000000000000002d", 18) = 18 [pid 332] close(3) = 0 [pid 332] close(4) = 0 [pid 332] close(5) = 0 [pid 332] close(6) = -1 EBADF (Bad file descriptor) [pid 332] close(7) = -1 EBADF (Bad file descriptor) [pid 332] close(8) = -1 EBADF (Bad file descriptor) [pid 332] close(9) = -1 EBADF (Bad file descriptor) [pid 332] close(10) = -1 EBADF (Bad file descriptor) [pid 332] close(11) = -1 EBADF (Bad file descriptor) [pid 332] close(12) = -1 EBADF (Bad file descriptor) [pid 332] close(13) = -1 EBADF (Bad file descriptor) [pid 332] close(14) = -1 EBADF (Bad file descriptor) [pid 332] close(15) = -1 EBADF (Bad file descriptor) [pid 332] close(16) = -1 EBADF (Bad file descriptor) [pid 332] close(17) = -1 EBADF (Bad file descriptor) [pid 332] close(18) = -1 EBADF (Bad file descriptor) [pid 332] close(19) = -1 EBADF (Bad file descriptor) [pid 332] close(20) = -1 EBADF (Bad file descriptor) [pid 332] close(21) = -1 EBADF (Bad file descriptor) [pid 332] close(22) = -1 EBADF (Bad file descriptor) [pid 332] close(23) = -1 EBADF (Bad file descriptor) [pid 332] close(24) = -1 EBADF (Bad file descriptor) [pid 332] close(25) = -1 EBADF (Bad file descriptor) [pid 332] close(26) = -1 EBADF (Bad file descriptor) [pid 332] close(27) = -1 EBADF (Bad file descriptor) [pid 332] close(28) = -1 EBADF (Bad file descriptor) [pid 332] close(29) = -1 EBADF (Bad file descriptor) [pid 332] exit_group(0) = ? [pid 332] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=44, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./21/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./21/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./21/cgroup.cpu") = 0 [pid 288] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./21/binderfs") = 0 [pid 288] umount2("./21/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./21/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./21/cgroup") = 0 [pid 288] umount2("./21/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./21/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./21/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./21") = 0 [pid 288] mkdir("./22", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 334 attached [pid 334] set_robust_list(0x55555713b660, 24 [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 46 [pid 334] <... set_robust_list resumed>) = 0 [pid 334] chdir("./22") = 0 [pid 334] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 334] setpgid(0, 0) = 0 [pid 334] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 334] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 334] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 334] write(3, "1000", 4) = 4 [pid 334] close(3) = 0 [pid 334] symlink("/dev/binderfs", "./binderfs") = 0 [pid 334] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 334] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 334] openat(3, "freezer.state", O_RDWR) = 4 [pid 334] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 334] openat(3, "tasks", O_RDWR) = 5 [pid 334] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 335 attached ) = 47 [pid 334] write(5, "0x000000000000002f", 18) = 18 [pid 334] close(3) = 0 [pid 334] close(4) = 0 [pid 334] close(5) = 0 [pid 334] close(6) = -1 EBADF (Bad file descriptor) [pid 334] close(7) = -1 EBADF (Bad file descriptor) [pid 334] close(8) = -1 EBADF (Bad file descriptor) [pid 334] close(9) = -1 EBADF (Bad file descriptor) [pid 334] close(10) = -1 EBADF (Bad file descriptor) [pid 334] close(11) = -1 EBADF (Bad file descriptor) [pid 334] close(12) = -1 EBADF (Bad file descriptor) [pid 334] close(13) = -1 EBADF (Bad file descriptor) [pid 334] close(14) = -1 EBADF (Bad file descriptor) [pid 334] close(15) = -1 EBADF (Bad file descriptor) [pid 334] close(16) = -1 EBADF (Bad file descriptor) [pid 334] close(17) = -1 EBADF (Bad file descriptor) [pid 334] close(18) = -1 EBADF (Bad file descriptor) [pid 334] close(19) = -1 EBADF (Bad file descriptor) [pid 334] close(20) = -1 EBADF (Bad file descriptor) [pid 334] close(21) = -1 EBADF (Bad file descriptor) [pid 334] close(22) = -1 EBADF (Bad file descriptor) [pid 334] close(23) = -1 EBADF (Bad file descriptor) [pid 334] close(24) = -1 EBADF (Bad file descriptor) [pid 334] close(25) = -1 EBADF (Bad file descriptor) [pid 334] close(26) = -1 EBADF (Bad file descriptor) [pid 334] close(27) = -1 EBADF (Bad file descriptor) [pid 334] close(28) = -1 EBADF (Bad file descriptor) [pid 334] close(29) = -1 EBADF (Bad file descriptor) [pid 334] exit_group(0) = ? [pid 334] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=46, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./22/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./22/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./22/cgroup.cpu") = 0 [pid 288] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./22/binderfs") = 0 [pid 288] umount2("./22/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./22/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./22/cgroup") = 0 [pid 288] umount2("./22/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./22/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./22/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./22") = 0 [pid 288] mkdir("./23", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 336 attached [pid 336] set_robust_list(0x55555713b660, 24) = 0 [pid 336] chdir("./23" [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 48 [pid 336] <... chdir resumed>) = 0 [pid 336] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 336] setpgid(0, 0) = 0 [pid 336] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 336] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 336] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 336] write(3, "1000", 4) = 4 [pid 336] close(3) = 0 [pid 336] symlink("/dev/binderfs", "./binderfs") = 0 [pid 336] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 336] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 336] openat(3, "freezer.state", O_RDWR) = 4 [pid 336] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 336] openat(3, "tasks", O_RDWR) = 5 [pid 336] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 337 attached ) = 49 [pid 336] write(5, "0x0000000000000031", 18) = 18 [pid 336] close(3) = 0 [pid 336] close(4) = 0 [pid 336] close(5) = 0 [pid 336] close(6) = -1 EBADF (Bad file descriptor) [pid 336] close(7) = -1 EBADF (Bad file descriptor) [pid 336] close(8) = -1 EBADF (Bad file descriptor) [pid 336] close(9) = -1 EBADF (Bad file descriptor) [pid 336] close(10) = -1 EBADF (Bad file descriptor) [pid 336] close(11) = -1 EBADF (Bad file descriptor) [pid 336] close(12) = -1 EBADF (Bad file descriptor) [pid 336] close(13) = -1 EBADF (Bad file descriptor) [pid 336] close(14) = -1 EBADF (Bad file descriptor) [pid 336] close(15) = -1 EBADF (Bad file descriptor) [pid 336] close(16) = -1 EBADF (Bad file descriptor) [pid 336] close(17) = -1 EBADF (Bad file descriptor) [pid 336] close(18) = -1 EBADF (Bad file descriptor) [pid 336] close(19) = -1 EBADF (Bad file descriptor) [pid 336] close(20) = -1 EBADF (Bad file descriptor) [pid 336] close(21) = -1 EBADF (Bad file descriptor) [pid 336] close(22) = -1 EBADF (Bad file descriptor) [pid 336] close(23) = -1 EBADF (Bad file descriptor) [pid 336] close(24) = -1 EBADF (Bad file descriptor) [pid 336] close(25) = -1 EBADF (Bad file descriptor) [pid 336] close(26) = -1 EBADF (Bad file descriptor) [pid 336] close(27) = -1 EBADF (Bad file descriptor) [pid 336] close(28) = -1 EBADF (Bad file descriptor) [pid 336] close(29) = -1 EBADF (Bad file descriptor) [pid 336] exit_group(0) = ? [pid 336] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=48, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./23/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./23/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./23/cgroup.cpu") = 0 [pid 288] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./23/binderfs") = 0 [pid 288] umount2("./23/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./23/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./23/cgroup") = 0 [pid 288] umount2("./23/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./23/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./23/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./23") = 0 [pid 288] mkdir("./24", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 338 attached [pid 338] set_robust_list(0x55555713b660, 24) = 0 [pid 338] chdir("./24") = 0 [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 50 [pid 338] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 338] setpgid(0, 0) = 0 [pid 338] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 338] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 338] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 338] write(3, "1000", 4) = 4 [pid 338] close(3) = 0 [pid 338] symlink("/dev/binderfs", "./binderfs") = 0 [pid 338] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 338] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 338] openat(3, "freezer.state", O_RDWR) = 4 [pid 338] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 338] openat(3, "tasks", O_RDWR) = 5 [pid 338] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 339 attached ) = 51 [pid 338] write(5, "0x0000000000000033", 18) = 18 [pid 338] close(3) = 0 [pid 338] close(4) = 0 [pid 338] close(5) = 0 [pid 338] close(6) = -1 EBADF (Bad file descriptor) [pid 338] close(7) = -1 EBADF (Bad file descriptor) [pid 338] close(8) = -1 EBADF (Bad file descriptor) [pid 338] close(9) = -1 EBADF (Bad file descriptor) [pid 338] close(10) = -1 EBADF (Bad file descriptor) [pid 338] close(11) = -1 EBADF (Bad file descriptor) [pid 338] close(12) = -1 EBADF (Bad file descriptor) [pid 338] close(13) = -1 EBADF (Bad file descriptor) [pid 338] close(14) = -1 EBADF (Bad file descriptor) [pid 338] close(15) = -1 EBADF (Bad file descriptor) [pid 338] close(16) = -1 EBADF (Bad file descriptor) [pid 338] close(17) = -1 EBADF (Bad file descriptor) [pid 338] close(18) = -1 EBADF (Bad file descriptor) [pid 338] close(19) = -1 EBADF (Bad file descriptor) [pid 338] close(20) = -1 EBADF (Bad file descriptor) [pid 338] close(21) = -1 EBADF (Bad file descriptor) [pid 338] close(22) = -1 EBADF (Bad file descriptor) [pid 338] close(23) = -1 EBADF (Bad file descriptor) [pid 338] close(24) = -1 EBADF (Bad file descriptor) [pid 338] close(25) = -1 EBADF (Bad file descriptor) [pid 338] close(26) = -1 EBADF (Bad file descriptor) [pid 338] close(27) = -1 EBADF (Bad file descriptor) [pid 338] close(28) = -1 EBADF (Bad file descriptor) [pid 338] close(29) = -1 EBADF (Bad file descriptor) [pid 338] exit_group(0) = ? [pid 338] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=50, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 288] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./24/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./24/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./24/cgroup.cpu") = 0 [pid 288] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./24/binderfs") = 0 [pid 288] umount2("./24/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./24/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./24/cgroup") = 0 [pid 288] umount2("./24/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./24/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./24/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./24") = 0 [pid 288] mkdir("./25", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555713b650) = 52 ./strace-static-x86_64: Process 340 attached [pid 340] set_robust_list(0x55555713b660, 24) = 0 [pid 340] chdir("./25") = 0 [pid 340] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 340] setpgid(0, 0) = 0 [pid 340] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 340] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 340] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 340] write(3, "1000", 4) = 4 [pid 340] close(3) = 0 [pid 340] symlink("/dev/binderfs", "./binderfs") = 0 [pid 340] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 340] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 340] openat(3, "freezer.state", O_RDWR) = 4 [pid 340] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 340] openat(3, "tasks", O_RDWR) = 5 [pid 340] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 341 attached ) = 53 [pid 340] write(5, "0x0000000000000035", 18) = 18 [pid 340] close(3) = 0 [pid 340] close(4) = 0 [pid 340] close(5) = 0 [pid 340] close(6) = -1 EBADF (Bad file descriptor) [pid 340] close(7) = -1 EBADF (Bad file descriptor) [pid 340] close(8) = -1 EBADF (Bad file descriptor) [pid 340] close(9) = -1 EBADF (Bad file descriptor) [pid 340] close(10) = -1 EBADF (Bad file descriptor) [pid 340] close(11) = -1 EBADF (Bad file descriptor) [pid 340] close(12) = -1 EBADF (Bad file descriptor) [pid 340] close(13) = -1 EBADF (Bad file descriptor) [pid 340] close(14) = -1 EBADF (Bad file descriptor) [pid 340] close(15) = -1 EBADF (Bad file descriptor) [pid 340] close(16) = -1 EBADF (Bad file descriptor) [pid 340] close(17) = -1 EBADF (Bad file descriptor) [pid 340] close(18) = -1 EBADF (Bad file descriptor) [pid 340] close(19) = -1 EBADF (Bad file descriptor) [pid 340] close(20) = -1 EBADF (Bad file descriptor) [pid 340] close(21) = -1 EBADF (Bad file descriptor) [pid 340] close(22) = -1 EBADF (Bad file descriptor) [pid 340] close(23) = -1 EBADF (Bad file descriptor) [pid 340] close(24) = -1 EBADF (Bad file descriptor) [pid 340] close(25) = -1 EBADF (Bad file descriptor) [pid 340] close(26) = -1 EBADF (Bad file descriptor) [pid 340] close(27) = -1 EBADF (Bad file descriptor) [pid 340] close(28) = -1 EBADF (Bad file descriptor) [pid 340] close(29) = -1 EBADF (Bad file descriptor) [pid 340] exit_group(0) = ? [pid 340] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=52, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 288] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./25/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./25/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./25/cgroup.cpu") = 0 [pid 288] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./25/binderfs") = 0 [pid 288] umount2("./25/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./25/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./25/cgroup") = 0 [pid 288] umount2("./25/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./25/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./25/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./25") = 0 [pid 288] mkdir("./26", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 342 attached , child_tidptr=0x55555713b650) = 54 [pid 342] set_robust_list(0x55555713b660, 24) = 0 [pid 342] chdir("./26") = 0 [pid 342] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 342] setpgid(0, 0) = 0 [pid 342] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 342] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 342] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 342] write(3, "1000", 4) = 4 [pid 342] close(3) = 0 [pid 342] symlink("/dev/binderfs", "./binderfs") = 0 [pid 342] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 342] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 342] openat(3, "freezer.state", O_RDWR) = 4 [pid 342] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 342] openat(3, "tasks", O_RDWR) = 5 [pid 342] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 343 attached ) = 55 [pid 342] write(5, "0x0000000000000037", 18) = 18 [pid 342] close(3) = 0 [pid 342] close(4) = 0 [pid 342] close(5) = 0 [pid 342] close(6) = -1 EBADF (Bad file descriptor) [pid 342] close(7) = -1 EBADF (Bad file descriptor) [pid 342] close(8) = -1 EBADF (Bad file descriptor) [pid 342] close(9) = -1 EBADF (Bad file descriptor) [pid 342] close(10) = -1 EBADF (Bad file descriptor) [pid 342] close(11) = -1 EBADF (Bad file descriptor) [pid 342] close(12) = -1 EBADF (Bad file descriptor) [pid 342] close(13) = -1 EBADF (Bad file descriptor) [pid 342] close(14) = -1 EBADF (Bad file descriptor) [pid 342] close(15) = -1 EBADF (Bad file descriptor) [pid 342] close(16) = -1 EBADF (Bad file descriptor) [pid 342] close(17) = -1 EBADF (Bad file descriptor) [pid 342] close(18) = -1 EBADF (Bad file descriptor) [pid 342] close(19) = -1 EBADF (Bad file descriptor) [pid 342] close(20) = -1 EBADF (Bad file descriptor) [pid 342] close(21) = -1 EBADF (Bad file descriptor) [pid 342] close(22) = -1 EBADF (Bad file descriptor) [pid 342] close(23) = -1 EBADF (Bad file descriptor) [pid 342] close(24) = -1 EBADF (Bad file descriptor) [pid 342] close(25) = -1 EBADF (Bad file descriptor) [pid 342] close(26) = -1 EBADF (Bad file descriptor) [pid 342] close(27) = -1 EBADF (Bad file descriptor) [pid 342] close(28) = -1 EBADF (Bad file descriptor) [pid 342] close(29) = -1 EBADF (Bad file descriptor) [pid 342] exit_group(0) = ? [pid 342] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=54, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 288] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./26/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./26/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./26/cgroup.cpu") = 0 [pid 288] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./26/binderfs") = 0 [pid 288] umount2("./26/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./26/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./26/cgroup") = 0 [pid 288] umount2("./26/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./26/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./26/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./26") = 0 [pid 288] mkdir("./27", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 344 attached , child_tidptr=0x55555713b650) = 56 [pid 344] set_robust_list(0x55555713b660, 24) = 0 [pid 344] chdir("./27") = 0 [pid 344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 344] setpgid(0, 0) = 0 [pid 344] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 344] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 344] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 344] write(3, "1000", 4) = 4 [pid 344] close(3) = 0 [pid 344] symlink("/dev/binderfs", "./binderfs") = 0 [pid 344] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 344] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 344] openat(3, "freezer.state", O_RDWR) = 4 [pid 344] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 344] openat(3, "tasks", O_RDWR) = 5 [pid 344] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 345 attached ) = 57 [pid 344] write(5, "0x0000000000000039", 18) = 18 [pid 344] close(3) = 0 [pid 344] close(4) = 0 [pid 344] close(5) = 0 [pid 344] close(6) = -1 EBADF (Bad file descriptor) [pid 344] close(7) = -1 EBADF (Bad file descriptor) [pid 344] close(8) = -1 EBADF (Bad file descriptor) [pid 344] close(9) = -1 EBADF (Bad file descriptor) [pid 344] close(10) = -1 EBADF (Bad file descriptor) [pid 344] close(11) = -1 EBADF (Bad file descriptor) [pid 344] close(12) = -1 EBADF (Bad file descriptor) [pid 344] close(13) = -1 EBADF (Bad file descriptor) [pid 344] close(14) = -1 EBADF (Bad file descriptor) [pid 344] close(15) = -1 EBADF (Bad file descriptor) [pid 344] close(16) = -1 EBADF (Bad file descriptor) [pid 344] close(17) = -1 EBADF (Bad file descriptor) [pid 344] close(18) = -1 EBADF (Bad file descriptor) [pid 344] close(19) = -1 EBADF (Bad file descriptor) [pid 344] close(20) = -1 EBADF (Bad file descriptor) [pid 344] close(21) = -1 EBADF (Bad file descriptor) [pid 344] close(22) = -1 EBADF (Bad file descriptor) [pid 344] close(23) = -1 EBADF (Bad file descriptor) [pid 344] close(24) = -1 EBADF (Bad file descriptor) [pid 344] close(25) = -1 EBADF (Bad file descriptor) [pid 344] close(26) = -1 EBADF (Bad file descriptor) [pid 344] close(27) = -1 EBADF (Bad file descriptor) [pid 344] close(28) = -1 EBADF (Bad file descriptor) [pid 344] close(29) = -1 EBADF (Bad file descriptor) [pid 344] exit_group(0) = ? [pid 344] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=56, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 288] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./27/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./27/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./27/cgroup.cpu") = 0 [pid 288] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./27/binderfs") = 0 [pid 288] umount2("./27/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./27/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./27/cgroup") = 0 [pid 288] umount2("./27/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./27/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./27/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./27") = 0 [pid 288] mkdir("./28", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 346 attached [pid 346] set_robust_list(0x55555713b660, 24) = 0 [pid 346] chdir("./28") = 0 [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 58 [pid 346] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 346] setpgid(0, 0) = 0 [pid 346] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 346] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 346] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 346] write(3, "1000", 4) = 4 [pid 346] close(3) = 0 [pid 346] symlink("/dev/binderfs", "./binderfs") = 0 [pid 346] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 346] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 346] openat(3, "freezer.state", O_RDWR) = 4 [pid 346] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 346] openat(3, "tasks", O_RDWR) = 5 [pid 346] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 347 attached ) = 59 [pid 346] write(5, "0x000000000000003b", 18) = 18 [pid 346] close(3) = 0 [pid 346] close(4) = 0 [pid 346] close(5) = 0 [pid 346] close(6) = -1 EBADF (Bad file descriptor) [pid 346] close(7) = -1 EBADF (Bad file descriptor) [pid 346] close(8) = -1 EBADF (Bad file descriptor) [pid 346] close(9) = -1 EBADF (Bad file descriptor) [pid 346] close(10) = -1 EBADF (Bad file descriptor) [pid 346] close(11) = -1 EBADF (Bad file descriptor) [pid 346] close(12) = -1 EBADF (Bad file descriptor) [pid 346] close(13) = -1 EBADF (Bad file descriptor) [pid 346] close(14) = -1 EBADF (Bad file descriptor) [pid 346] close(15) = -1 EBADF (Bad file descriptor) [pid 346] close(16) = -1 EBADF (Bad file descriptor) [pid 346] close(17) = -1 EBADF (Bad file descriptor) [pid 346] close(18) = -1 EBADF (Bad file descriptor) [pid 346] close(19) = -1 EBADF (Bad file descriptor) [pid 346] close(20) = -1 EBADF (Bad file descriptor) [pid 346] close(21) = -1 EBADF (Bad file descriptor) [pid 346] close(22) = -1 EBADF (Bad file descriptor) [pid 346] close(23) = -1 EBADF (Bad file descriptor) [pid 346] close(24) = -1 EBADF (Bad file descriptor) [pid 346] close(25) = -1 EBADF (Bad file descriptor) [pid 346] close(26) = -1 EBADF (Bad file descriptor) [pid 346] close(27) = -1 EBADF (Bad file descriptor) [pid 346] close(28) = -1 EBADF (Bad file descriptor) [pid 346] close(29) = -1 EBADF (Bad file descriptor) [pid 346] exit_group(0) = ? [pid 346] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./28/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./28/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./28/cgroup.cpu") = 0 [pid 288] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./28/binderfs") = 0 [pid 288] umount2("./28/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./28/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./28/cgroup") = 0 [pid 288] umount2("./28/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./28/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./28/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./28") = 0 [pid 288] mkdir("./29", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 348 attached , child_tidptr=0x55555713b650) = 60 [pid 348] set_robust_list(0x55555713b660, 24) = 0 [pid 348] chdir("./29") = 0 [pid 348] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 348] setpgid(0, 0) = 0 [pid 348] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 348] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 348] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 348] write(3, "1000", 4) = 4 [pid 348] close(3) = 0 [pid 348] symlink("/dev/binderfs", "./binderfs") = 0 [pid 348] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 348] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 348] openat(3, "freezer.state", O_RDWR) = 4 [pid 348] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 348] openat(3, "tasks", O_RDWR) = 5 [pid 348] clone(child_stack=NULL, flags=0./strace-static-x86_64: Process 349 attached ) = 61 [pid 348] write(5, "0x000000000000003d", 18) = 18 [pid 348] close(3) = 0 [pid 348] close(4) = 0 [pid 348] close(5) = 0 [pid 348] close(6) = -1 EBADF (Bad file descriptor) [pid 348] close(7) = -1 EBADF (Bad file descriptor) [pid 348] close(8) = -1 EBADF (Bad file descriptor) [pid 348] close(9) = -1 EBADF (Bad file descriptor) [pid 348] close(10) = -1 EBADF (Bad file descriptor) [pid 348] close(11) = -1 EBADF (Bad file descriptor) [pid 348] close(12) = -1 EBADF (Bad file descriptor) [pid 348] close(13) = -1 EBADF (Bad file descriptor) [pid 348] close(14) = -1 EBADF (Bad file descriptor) [pid 348] close(15) = -1 EBADF (Bad file descriptor) [pid 348] close(16) = -1 EBADF (Bad file descriptor) [pid 348] close(17) = -1 EBADF (Bad file descriptor) [pid 348] close(18) = -1 EBADF (Bad file descriptor) [pid 348] close(19) = -1 EBADF (Bad file descriptor) [pid 348] close(20) = -1 EBADF (Bad file descriptor) [pid 348] close(21) = -1 EBADF (Bad file descriptor) [pid 348] close(22) = -1 EBADF (Bad file descriptor) [pid 348] close(23) = -1 EBADF (Bad file descriptor) [pid 348] close(24) = -1 EBADF (Bad file descriptor) [pid 348] close(25) = -1 EBADF (Bad file descriptor) [pid 348] close(26) = -1 EBADF (Bad file descriptor) [pid 348] close(27) = -1 EBADF (Bad file descriptor) [pid 348] close(28) = -1 EBADF (Bad file descriptor) [pid 348] close(29) = -1 EBADF (Bad file descriptor) [pid 348] exit_group(0) = ? [pid 348] +++ exited with 0 +++ [pid 288] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 288] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 6 entries */, 32768) = 176 [pid 288] umount2("./29/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./29/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./29/cgroup.cpu") = 0 [pid 288] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./29/binderfs") = 0 [pid 288] umount2("./29/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./29/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./29/cgroup") = 0 [pid 288] umount2("./29/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 288] newfstatat(AT_FDCWD, "./29/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 288] unlink("./29/cgroup.net") = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0 [pid 288] rmdir("./29") = 0 [pid 288] mkdir("./30", 0777) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 350 attached [pid 350] set_robust_list(0x55555713b660, 24) = 0 [pid 350] chdir("./30" [pid 288] <... clone resumed>, child_tidptr=0x55555713b650) = 62 [pid 350] <... chdir resumed>) = 0 [pid 350] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 350] setpgid(0, 0) = 0 [pid 350] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 350] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 350] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 350] write(3, "1000", 4) = 4 [pid 350] close(3) = 0 [pid 350] symlink("/dev/binderfs", "./binderfs") = 0 [pid 350] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777) = -1 EEXIST (File exists) [pid 350] openat(AT_FDCWD, "./cgroup.net/syz0", O_RDWR|O_PATH) = 3 [pid 350] openat(3, "freezer.state", O_RDWR) = 4 [pid 350] write(4, "\x46\x52\x4f\x5a\x45\x4e\x00", 7) = 7 [pid 350] openat(3, "tasks", O_RDWR) = 5 [pid 350] clone(child_stack=NULL, flags=0) = -1 EAGAIN (Resource temporarily unavailable) [pid 350] write(5, "0x0000000000000000", 18) = 18 [ 23.220891][ T350] cgroup: fork rejected by pids controller in /syz0 [pid 288] kill(-62, SIGKILL) = 0 [pid 288] kill(62, SIGKILL) = 0 [pid 288] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 288] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 288] getdents64(3, 0x55555713c6f0 /* 2 entries */, 32768) = 48 [pid 288] getdents64(3, 0x55555713c6f0 /* 0 entries */, 32768) = 0 [pid 288] close(3) = 0