./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3156773735 <...> Warning: Permanently added '10.128.0.181' (ECDSA) to the list of known hosts. execve("./syz-executor3156773735", ["./syz-executor3156773735"], 0x7ffd0f07a5d0 /* 10 vars */) = 0 brk(NULL) = 0x5555567b0000 brk(0x5555567b0c40) = 0x5555567b0c40 arch_prctl(ARCH_SET_FS, 0x5555567b0300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3156773735", 4096) = 28 brk(0x5555567d1c40) = 0x5555567d1c40 brk(0x5555567d2000) = 0x5555567d2000 mprotect(0x7ff3a2f17000, 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, "+memory", 7) = 7 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 mount("none", "/syzcgroup/net", "cgroup", 0, "devices") = 0 umount2("/syzcgroup/net", 0) = 0 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,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) syzkaller login: [ 39.508745][ T3602] cgroup: Unknown subsys name 'net' mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,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") = 0 umount2("/syzcgroup/cpu", 0) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "rlimit") = -1 EINVAL (Invalid argument) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,hugetlb") = ? ERESTARTNOINTR (To be restarted) [ 39.645354][ T3602] cgroup: Unknown subsys name 'rlimit' mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,hugetlb") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,hugetlb") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,hugetlb") = 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 getpid() = 3602 mkdir("./syzkaller.3H08mz", 0700) = 0 chmod("./syzkaller.3H08mz", 0777) = 0 chdir("./syzkaller.3H08mz") = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3603 attached , child_tidptr=0x5555567b05d0) = 3603 [pid 3603] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3603] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3603] setsid() = 1 [pid 3603] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3603] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3603] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3603] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3603] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 3603] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3603] unshare(CLONE_NEWNS) = 0 [pid 3603] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3603] unshare(CLONE_NEWIPC) = 0 [pid 3603] unshare(CLONE_NEWCGROUP) = 0 [pid 3603] unshare(CLONE_NEWUTS) = 0 [pid 3603] unshare(CLONE_SYSVSEM) = 0 [pid 3603] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3603] write(3, "16777216", 8) = 8 [pid 3603] close(3) = 0 [pid 3603] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3603] write(3, "536870912", 9) = 9 [pid 3603] close(3) = 0 [pid 3603] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3603] write(3, "1024", 4) = 4 [pid 3603] close(3) = 0 [pid 3603] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3603] write(3, "8192", 4) = 4 [pid 3603] close(3) = 0 [pid 3603] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3603] write(3, "1024", 4) = 4 [pid 3603] close(3) = 0 [pid 3603] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3603] write(3, "1024", 4) = 4 [pid 3603] close(3) = 0 [pid 3603] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3603] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3603] close(3) = 0 [pid 3603] getpid() = 1 [pid 3603] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 3606] chdir("./2" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 4 [pid 3606] <... chdir resumed>) = 0 [pid 3606] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3606] setpgid(0, 0) = 0 [pid 3606] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3606] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3606] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3606] write(3, "1000", 4) = 4 [pid 3606] close(3) = 0 [pid 3606] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3606] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3606] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3606] gettid() = 4 [pid 3606] process_vm_writev(4, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3606] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3606] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3606] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3606] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3606] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3606] close(3) = 0 [pid 3606] close(4) = 0 [pid 3606] close(5) = -1 EBADF (Bad file descriptor) [pid 3606] close(6) = -1 EBADF (Bad file descriptor) [pid 3606] close(7) = -1 EBADF (Bad file descriptor) [pid 3606] close(8) = -1 EBADF (Bad file descriptor) [pid 3606] close(9) = -1 EBADF (Bad file descriptor) [pid 3606] close(10) = -1 EBADF (Bad file descriptor) [pid 3606] close(11) = -1 EBADF (Bad file descriptor) [pid 3606] close(12) = -1 EBADF (Bad file descriptor) [pid 3606] close(13) = -1 EBADF (Bad file descriptor) [pid 3606] close(14) = -1 EBADF (Bad file descriptor) [pid 3606] close(15) = -1 EBADF (Bad file descriptor) [pid 3606] close(16) = -1 EBADF (Bad file descriptor) [pid 3606] close(17) = -1 EBADF (Bad file descriptor) [pid 3606] close(18) = -1 EBADF (Bad file descriptor) [pid 3606] close(19) = -1 EBADF (Bad file descriptor) [pid 3606] close(20) = -1 EBADF (Bad file descriptor) [pid 3606] close(21) = -1 EBADF (Bad file descriptor) [pid 3606] close(22) = -1 EBADF (Bad file descriptor) [pid 3606] close(23) = -1 EBADF (Bad file descriptor) [pid 3606] close(24) = -1 EBADF (Bad file descriptor) [pid 3606] close(25) = -1 EBADF (Bad file descriptor) [pid 3606] close(26) = -1 EBADF (Bad file descriptor) [pid 3606] close(27) = -1 EBADF (Bad file descriptor) [pid 3606] close(28) = -1 EBADF (Bad file descriptor) [pid 3606] close(29) = -1 EBADF (Bad file descriptor) [pid 3606] exit_group(0) = ? [pid 3606] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./2/binderfs") = 0 [pid 3603] umount2("./2/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./2/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./2/cgroup") = 0 [pid 3603] umount2("./2/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./2/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./2/cgroup.net") = 0 [pid 3603] umount2("./2/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./2/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./2/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./2") = 0 [pid 3603] mkdir("./3", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3607 attached , child_tidptr=0x5555567b05d0) = 5 [pid 3607] chdir("./3") = 0 [pid 3607] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3607] setpgid(0, 0) = 0 [pid 3607] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3607] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3607] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "1000", 4) = 4 [pid 3607] close(3) = 0 [pid 3607] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3607] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3607] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3607] gettid() = 5 [pid 3607] process_vm_writev(5, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3607] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3607] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3607] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3607] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3607] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3607] close(3) = 0 [pid 3607] close(4) = 0 [pid 3607] close(5) = -1 EBADF (Bad file descriptor) [pid 3607] close(6) = -1 EBADF (Bad file descriptor) [pid 3607] close(7) = -1 EBADF (Bad file descriptor) [pid 3607] close(8) = -1 EBADF (Bad file descriptor) [pid 3607] close(9) = -1 EBADF (Bad file descriptor) [pid 3607] close(10) = -1 EBADF (Bad file descriptor) [pid 3607] close(11) = -1 EBADF (Bad file descriptor) [pid 3607] close(12) = -1 EBADF (Bad file descriptor) [pid 3607] close(13) = -1 EBADF (Bad file descriptor) [pid 3607] close(14) = -1 EBADF (Bad file descriptor) [pid 3607] close(15) = -1 EBADF (Bad file descriptor) [pid 3607] close(16) = -1 EBADF (Bad file descriptor) [pid 3607] close(17) = -1 EBADF (Bad file descriptor) [pid 3607] close(18) = -1 EBADF (Bad file descriptor) [pid 3607] close(19) = -1 EBADF (Bad file descriptor) [pid 3607] close(20) = -1 EBADF (Bad file descriptor) [pid 3607] close(21) = -1 EBADF (Bad file descriptor) [pid 3607] close(22) = -1 EBADF (Bad file descriptor) [pid 3607] close(23) = -1 EBADF (Bad file descriptor) [pid 3607] close(24) = -1 EBADF (Bad file descriptor) [pid 3607] close(25) = -1 EBADF (Bad file descriptor) [pid 3607] close(26) = -1 EBADF (Bad file descriptor) [pid 3607] close(27) = -1 EBADF (Bad file descriptor) [pid 3607] close(28) = -1 EBADF (Bad file descriptor) [pid 3607] close(29) = -1 EBADF (Bad file descriptor) [pid 3607] exit_group(0) = ? [pid 3607] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./3/binderfs") = 0 [pid 3603] umount2("./3/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./3/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./3/cgroup") = 0 [pid 3603] umount2("./3/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./3/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./3/cgroup.net") = 0 [pid 3603] umount2("./3/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./3/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./3/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./3") = 0 [pid 3603] mkdir("./4", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3608 attached , child_tidptr=0x5555567b05d0) = 6 [pid 3608] chdir("./4") = 0 [pid 3608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3608] setpgid(0, 0) = 0 [pid 3608] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3608] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3608] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "1000", 4) = 4 [pid 3608] close(3) = 0 [pid 3608] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3608] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3608] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3608] gettid() = 6 [pid 3608] process_vm_writev(6, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3608] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3608] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3608] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3608] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3608] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3608] close(3) = 0 [pid 3608] close(4) = 0 [pid 3608] close(5) = -1 EBADF (Bad file descriptor) [pid 3608] close(6) = -1 EBADF (Bad file descriptor) [pid 3608] close(7) = -1 EBADF (Bad file descriptor) [pid 3608] close(8) = -1 EBADF (Bad file descriptor) [pid 3608] close(9) = -1 EBADF (Bad file descriptor) [pid 3608] close(10) = -1 EBADF (Bad file descriptor) [pid 3608] close(11) = -1 EBADF (Bad file descriptor) [pid 3608] close(12) = -1 EBADF (Bad file descriptor) [pid 3608] close(13) = -1 EBADF (Bad file descriptor) [pid 3608] close(14) = -1 EBADF (Bad file descriptor) [pid 3608] close(15) = -1 EBADF (Bad file descriptor) [pid 3608] close(16) = -1 EBADF (Bad file descriptor) [pid 3608] close(17) = -1 EBADF (Bad file descriptor) [pid 3608] close(18) = -1 EBADF (Bad file descriptor) [pid 3608] close(19) = -1 EBADF (Bad file descriptor) [pid 3608] close(20) = -1 EBADF (Bad file descriptor) [pid 3608] close(21) = -1 EBADF (Bad file descriptor) [pid 3608] close(22) = -1 EBADF (Bad file descriptor) [pid 3608] close(23) = -1 EBADF (Bad file descriptor) [pid 3608] close(24) = -1 EBADF (Bad file descriptor) [pid 3608] close(25) = -1 EBADF (Bad file descriptor) [pid 3608] close(26) = -1 EBADF (Bad file descriptor) [pid 3608] close(27) = -1 EBADF (Bad file descriptor) [pid 3608] close(28) = -1 EBADF (Bad file descriptor) [pid 3608] close(29) = -1 EBADF (Bad file descriptor) [pid 3608] exit_group(0) = ? [pid 3608] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./4/binderfs") = 0 [pid 3603] umount2("./4/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./4/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./4/cgroup") = 0 [pid 3603] umount2("./4/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./4/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./4/cgroup.net") = 0 [pid 3603] umount2("./4/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./4/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./4/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./4") = 0 [pid 3603] mkdir("./5", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3609 attached , child_tidptr=0x5555567b05d0) = 7 [pid 3609] chdir("./5") = 0 [pid 3609] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3609] setpgid(0, 0) = 0 [pid 3609] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3609] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3609] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3609] write(3, "1000", 4) = 4 [pid 3609] close(3) = 0 [pid 3609] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3609] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3609] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3609] gettid() = 7 [pid 3609] process_vm_writev(7, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3609] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3609] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3609] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3609] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3609] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3609] close(3) = 0 [pid 3609] close(4) = 0 [pid 3609] close(5) = -1 EBADF (Bad file descriptor) [pid 3609] close(6) = -1 EBADF (Bad file descriptor) [pid 3609] close(7) = -1 EBADF (Bad file descriptor) [pid 3609] close(8) = -1 EBADF (Bad file descriptor) [pid 3609] close(9) = -1 EBADF (Bad file descriptor) [pid 3609] close(10) = -1 EBADF (Bad file descriptor) [pid 3609] close(11) = -1 EBADF (Bad file descriptor) [pid 3609] close(12) = -1 EBADF (Bad file descriptor) [pid 3609] close(13) = -1 EBADF (Bad file descriptor) [pid 3609] close(14) = -1 EBADF (Bad file descriptor) [pid 3609] close(15) = -1 EBADF (Bad file descriptor) [pid 3609] close(16) = -1 EBADF (Bad file descriptor) [pid 3609] close(17) = -1 EBADF (Bad file descriptor) [pid 3609] close(18) = -1 EBADF (Bad file descriptor) [pid 3609] close(19) = -1 EBADF (Bad file descriptor) [pid 3609] close(20) = -1 EBADF (Bad file descriptor) [pid 3609] close(21) = -1 EBADF (Bad file descriptor) [pid 3609] close(22) = -1 EBADF (Bad file descriptor) [pid 3609] close(23) = -1 EBADF (Bad file descriptor) [pid 3609] close(24) = -1 EBADF (Bad file descriptor) [pid 3609] close(25) = -1 EBADF (Bad file descriptor) [pid 3609] close(26) = -1 EBADF (Bad file descriptor) [pid 3609] close(27) = -1 EBADF (Bad file descriptor) [pid 3609] close(28) = -1 EBADF (Bad file descriptor) [pid 3609] close(29) = -1 EBADF (Bad file descriptor) [pid 3609] exit_group(0) = ? [pid 3609] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./5/binderfs") = 0 [pid 3603] umount2("./5/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./5/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./5/cgroup") = 0 [pid 3603] umount2("./5/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./5/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./5/cgroup.net") = 0 [pid 3603] umount2("./5/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./5/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./5/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./5") = 0 [pid 3603] mkdir("./6", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3610 attached , child_tidptr=0x5555567b05d0) = 8 [pid 3610] chdir("./6") = 0 [pid 3610] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3610] setpgid(0, 0) = 0 [pid 3610] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3610] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3610] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "1000", 4) = 4 [pid 3610] close(3) = 0 [pid 3610] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3610] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3610] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3610] gettid() = 8 [pid 3610] process_vm_writev(8, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3610] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3610] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3610] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3610] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3610] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3610] close(3) = 0 [pid 3610] close(4) = 0 [pid 3610] close(5) = -1 EBADF (Bad file descriptor) [pid 3610] close(6) = -1 EBADF (Bad file descriptor) [pid 3610] close(7) = -1 EBADF (Bad file descriptor) [pid 3610] close(8) = -1 EBADF (Bad file descriptor) [pid 3610] close(9) = -1 EBADF (Bad file descriptor) [pid 3610] close(10) = -1 EBADF (Bad file descriptor) [pid 3610] close(11) = -1 EBADF (Bad file descriptor) [pid 3610] close(12) = -1 EBADF (Bad file descriptor) [pid 3610] close(13) = -1 EBADF (Bad file descriptor) [pid 3610] close(14) = -1 EBADF (Bad file descriptor) [pid 3610] close(15) = -1 EBADF (Bad file descriptor) [pid 3610] close(16) = -1 EBADF (Bad file descriptor) [pid 3610] close(17) = -1 EBADF (Bad file descriptor) [pid 3610] close(18) = -1 EBADF (Bad file descriptor) [pid 3610] close(19) = -1 EBADF (Bad file descriptor) [pid 3610] close(20) = -1 EBADF (Bad file descriptor) [pid 3610] close(21) = -1 EBADF (Bad file descriptor) [pid 3610] close(22) = -1 EBADF (Bad file descriptor) [pid 3610] close(23) = -1 EBADF (Bad file descriptor) [pid 3610] close(24) = -1 EBADF (Bad file descriptor) [pid 3610] close(25) = -1 EBADF (Bad file descriptor) [pid 3610] close(26) = -1 EBADF (Bad file descriptor) [pid 3610] close(27) = -1 EBADF (Bad file descriptor) [pid 3610] close(28) = -1 EBADF (Bad file descriptor) [pid 3610] close(29) = -1 EBADF (Bad file descriptor) [pid 3610] exit_group(0) = ? [pid 3610] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./6/binderfs") = 0 [pid 3603] umount2("./6/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./6/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./6/cgroup") = 0 [pid 3603] umount2("./6/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./6/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./6/cgroup.net") = 0 [pid 3603] umount2("./6/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./6/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./6/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./6") = 0 [pid 3603] mkdir("./7", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3611 attached , child_tidptr=0x5555567b05d0) = 9 [pid 3611] chdir("./7") = 0 [pid 3611] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3611] setpgid(0, 0) = 0 [pid 3611] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3611] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3611] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3611] write(3, "1000", 4) = 4 [pid 3611] close(3) = 0 [pid 3611] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3611] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3611] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3611] gettid() = 9 [pid 3611] process_vm_writev(9, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3611] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3611] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3611] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3611] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3611] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3611] close(3) = 0 [pid 3611] close(4) = 0 [pid 3611] close(5) = -1 EBADF (Bad file descriptor) [pid 3611] close(6) = -1 EBADF (Bad file descriptor) [pid 3611] close(7) = -1 EBADF (Bad file descriptor) [pid 3611] close(8) = -1 EBADF (Bad file descriptor) [pid 3611] close(9) = -1 EBADF (Bad file descriptor) [pid 3611] close(10) = -1 EBADF (Bad file descriptor) [pid 3611] close(11) = -1 EBADF (Bad file descriptor) [pid 3611] close(12) = -1 EBADF (Bad file descriptor) [pid 3611] close(13) = -1 EBADF (Bad file descriptor) [pid 3611] close(14) = -1 EBADF (Bad file descriptor) [pid 3611] close(15) = -1 EBADF (Bad file descriptor) [pid 3611] close(16) = -1 EBADF (Bad file descriptor) [pid 3611] close(17) = -1 EBADF (Bad file descriptor) [pid 3611] close(18) = -1 EBADF (Bad file descriptor) [pid 3611] close(19) = -1 EBADF (Bad file descriptor) [pid 3611] close(20) = -1 EBADF (Bad file descriptor) [pid 3611] close(21) = -1 EBADF (Bad file descriptor) [pid 3611] close(22) = -1 EBADF (Bad file descriptor) [pid 3611] close(23) = -1 EBADF (Bad file descriptor) [pid 3611] close(24) = -1 EBADF (Bad file descriptor) [pid 3611] close(25) = -1 EBADF (Bad file descriptor) [pid 3611] close(26) = -1 EBADF (Bad file descriptor) [pid 3611] close(27) = -1 EBADF (Bad file descriptor) [pid 3611] close(28) = -1 EBADF (Bad file descriptor) [pid 3611] close(29) = -1 EBADF (Bad file descriptor) [pid 3611] exit_group(0) = ? [pid 3611] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./7/binderfs") = 0 [pid 3603] umount2("./7/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./7/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./7/cgroup") = 0 [pid 3603] umount2("./7/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./7/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./7/cgroup.net") = 0 [pid 3603] umount2("./7/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./7/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./7/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./7") = 0 [pid 3603] mkdir("./8", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3612 attached , child_tidptr=0x5555567b05d0) = 10 [pid 3612] chdir("./8") = 0 [pid 3612] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3612] setpgid(0, 0) = 0 [pid 3612] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3612] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3612] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "1000", 4) = 4 [pid 3612] close(3) = 0 [pid 3612] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3612] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3612] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3612] gettid() = 10 [pid 3612] process_vm_writev(10, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3612] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3612] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3612] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3612] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3612] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3612] close(3) = 0 [pid 3612] close(4) = 0 [pid 3612] close(5) = -1 EBADF (Bad file descriptor) [pid 3612] close(6) = -1 EBADF (Bad file descriptor) [pid 3612] close(7) = -1 EBADF (Bad file descriptor) [pid 3612] close(8) = -1 EBADF (Bad file descriptor) [pid 3612] close(9) = -1 EBADF (Bad file descriptor) [pid 3612] close(10) = -1 EBADF (Bad file descriptor) [pid 3612] close(11) = -1 EBADF (Bad file descriptor) [pid 3612] close(12) = -1 EBADF (Bad file descriptor) [pid 3612] close(13) = -1 EBADF (Bad file descriptor) [pid 3612] close(14) = -1 EBADF (Bad file descriptor) [pid 3612] close(15) = -1 EBADF (Bad file descriptor) [pid 3612] close(16) = -1 EBADF (Bad file descriptor) [pid 3612] close(17) = -1 EBADF (Bad file descriptor) [pid 3612] close(18) = -1 EBADF (Bad file descriptor) [pid 3612] close(19) = -1 EBADF (Bad file descriptor) [pid 3612] close(20) = -1 EBADF (Bad file descriptor) [pid 3612] close(21) = -1 EBADF (Bad file descriptor) [pid 3612] close(22) = -1 EBADF (Bad file descriptor) [pid 3612] close(23) = -1 EBADF (Bad file descriptor) [pid 3612] close(24) = -1 EBADF (Bad file descriptor) [pid 3612] close(25) = -1 EBADF (Bad file descriptor) [pid 3612] close(26) = -1 EBADF (Bad file descriptor) [pid 3612] close(27) = -1 EBADF (Bad file descriptor) [pid 3612] close(28) = -1 EBADF (Bad file descriptor) [pid 3612] close(29) = -1 EBADF (Bad file descriptor) [pid 3612] exit_group(0) = ? [pid 3612] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./8/binderfs") = 0 [pid 3603] umount2("./8/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./8/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./8/cgroup") = 0 [pid 3603] umount2("./8/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./8/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./8/cgroup.net") = 0 [pid 3603] umount2("./8/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./8/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./8/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./8") = 0 [pid 3603] mkdir("./9", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 11 ./strace-static-x86_64: Process 3613 attached [pid 3613] chdir("./9") = 0 [pid 3613] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3613] setpgid(0, 0) = 0 [pid 3613] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3613] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3613] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3613] write(3, "1000", 4) = 4 [pid 3613] close(3) = 0 [pid 3613] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3613] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3613] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3613] gettid() = 11 [pid 3613] process_vm_writev(11, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3613] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3613] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3613] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3613] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3613] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3613] close(3) = 0 [pid 3613] close(4) = 0 [pid 3613] close(5) = -1 EBADF (Bad file descriptor) [pid 3613] close(6) = -1 EBADF (Bad file descriptor) [pid 3613] close(7) = -1 EBADF (Bad file descriptor) [pid 3613] close(8) = -1 EBADF (Bad file descriptor) [pid 3613] close(9) = -1 EBADF (Bad file descriptor) [pid 3613] close(10) = -1 EBADF (Bad file descriptor) [pid 3613] close(11) = -1 EBADF (Bad file descriptor) [pid 3613] close(12) = -1 EBADF (Bad file descriptor) [pid 3613] close(13) = -1 EBADF (Bad file descriptor) [pid 3613] close(14) = -1 EBADF (Bad file descriptor) [pid 3613] close(15) = -1 EBADF (Bad file descriptor) [pid 3613] close(16) = -1 EBADF (Bad file descriptor) [pid 3613] close(17) = -1 EBADF (Bad file descriptor) [pid 3613] close(18) = -1 EBADF (Bad file descriptor) [pid 3613] close(19) = -1 EBADF (Bad file descriptor) [pid 3613] close(20) = -1 EBADF (Bad file descriptor) [pid 3613] close(21) = -1 EBADF (Bad file descriptor) [pid 3613] close(22) = -1 EBADF (Bad file descriptor) [pid 3613] close(23) = -1 EBADF (Bad file descriptor) [pid 3613] close(24) = -1 EBADF (Bad file descriptor) [pid 3613] close(25) = -1 EBADF (Bad file descriptor) [pid 3613] close(26) = -1 EBADF (Bad file descriptor) [pid 3613] close(27) = -1 EBADF (Bad file descriptor) [pid 3613] close(28) = -1 EBADF (Bad file descriptor) [pid 3613] close(29) = -1 EBADF (Bad file descriptor) [pid 3613] exit_group(0) = ? [pid 3613] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./9/binderfs") = 0 [pid 3603] umount2("./9/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./9/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./9/cgroup") = 0 [pid 3603] umount2("./9/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./9/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./9/cgroup.net") = 0 [pid 3603] umount2("./9/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./9/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./9/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./9") = 0 [pid 3603] mkdir("./10", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3614 attached , child_tidptr=0x5555567b05d0) = 12 [pid 3614] chdir("./10") = 0 [pid 3614] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3614] setpgid(0, 0) = 0 [pid 3614] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3614] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3614] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3614] write(3, "1000", 4) = 4 [pid 3614] close(3) = 0 [pid 3614] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3614] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3614] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3614] gettid() = 12 [pid 3614] process_vm_writev(12, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3614] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3614] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3614] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3614] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3614] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3614] close(3) = 0 [pid 3614] close(4) = 0 [pid 3614] close(5) = -1 EBADF (Bad file descriptor) [pid 3614] close(6) = -1 EBADF (Bad file descriptor) [pid 3614] close(7) = -1 EBADF (Bad file descriptor) [pid 3614] close(8) = -1 EBADF (Bad file descriptor) [pid 3614] close(9) = -1 EBADF (Bad file descriptor) [pid 3614] close(10) = -1 EBADF (Bad file descriptor) [pid 3614] close(11) = -1 EBADF (Bad file descriptor) [pid 3614] close(12) = -1 EBADF (Bad file descriptor) [pid 3614] close(13) = -1 EBADF (Bad file descriptor) [pid 3614] close(14) = -1 EBADF (Bad file descriptor) [pid 3614] close(15) = -1 EBADF (Bad file descriptor) [pid 3614] close(16) = -1 EBADF (Bad file descriptor) [pid 3614] close(17) = -1 EBADF (Bad file descriptor) [pid 3614] close(18) = -1 EBADF (Bad file descriptor) [pid 3614] close(19) = -1 EBADF (Bad file descriptor) [pid 3614] close(20) = -1 EBADF (Bad file descriptor) [pid 3614] close(21) = -1 EBADF (Bad file descriptor) [pid 3614] close(22) = -1 EBADF (Bad file descriptor) [pid 3614] close(23) = -1 EBADF (Bad file descriptor) [pid 3614] close(24) = -1 EBADF (Bad file descriptor) [pid 3614] close(25) = -1 EBADF (Bad file descriptor) [pid 3614] close(26) = -1 EBADF (Bad file descriptor) [pid 3614] close(27) = -1 EBADF (Bad file descriptor) [pid 3614] close(28) = -1 EBADF (Bad file descriptor) [pid 3614] close(29) = -1 EBADF (Bad file descriptor) [pid 3614] exit_group(0) = ? [pid 3614] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./10/binderfs") = 0 [pid 3603] umount2("./10/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./10/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./10/cgroup") = 0 [pid 3603] umount2("./10/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./10/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./10/cgroup.net") = 0 [pid 3603] umount2("./10/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./10/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./10/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./10") = 0 [pid 3603] mkdir("./11", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3615 attached , child_tidptr=0x5555567b05d0) = 13 [pid 3615] chdir("./11") = 0 [pid 3615] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3615] setpgid(0, 0) = 0 [pid 3615] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3615] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3615] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "1000", 4) = 4 [pid 3615] close(3) = 0 [pid 3615] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3615] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3615] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3615] gettid() = 13 [pid 3615] process_vm_writev(13, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3615] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3615] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3615] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3615] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3615] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3615] close(3) = 0 [pid 3615] close(4) = 0 [pid 3615] close(5) = -1 EBADF (Bad file descriptor) [pid 3615] close(6) = -1 EBADF (Bad file descriptor) [pid 3615] close(7) = -1 EBADF (Bad file descriptor) [pid 3615] close(8) = -1 EBADF (Bad file descriptor) [pid 3615] close(9) = -1 EBADF (Bad file descriptor) [pid 3615] close(10) = -1 EBADF (Bad file descriptor) [pid 3615] close(11) = -1 EBADF (Bad file descriptor) [pid 3615] close(12) = -1 EBADF (Bad file descriptor) [pid 3615] close(13) = -1 EBADF (Bad file descriptor) [pid 3615] close(14) = -1 EBADF (Bad file descriptor) [pid 3615] close(15) = -1 EBADF (Bad file descriptor) [pid 3615] close(16) = -1 EBADF (Bad file descriptor) [pid 3615] close(17) = -1 EBADF (Bad file descriptor) [pid 3615] close(18) = -1 EBADF (Bad file descriptor) [pid 3615] close(19) = -1 EBADF (Bad file descriptor) [pid 3615] close(20) = -1 EBADF (Bad file descriptor) [pid 3615] close(21) = -1 EBADF (Bad file descriptor) [pid 3615] close(22) = -1 EBADF (Bad file descriptor) [pid 3615] close(23) = -1 EBADF (Bad file descriptor) [pid 3615] close(24) = -1 EBADF (Bad file descriptor) [pid 3615] close(25) = -1 EBADF (Bad file descriptor) [pid 3615] close(26) = -1 EBADF (Bad file descriptor) [pid 3615] close(27) = -1 EBADF (Bad file descriptor) [pid 3615] close(28) = -1 EBADF (Bad file descriptor) [pid 3615] close(29) = -1 EBADF (Bad file descriptor) [pid 3615] exit_group(0) = ? [pid 3615] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./11/binderfs") = 0 [pid 3603] umount2("./11/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./11/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./11/cgroup") = 0 [pid 3603] umount2("./11/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./11/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./11/cgroup.net") = 0 [pid 3603] umount2("./11/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./11/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./11/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./11") = 0 [pid 3603] mkdir("./12", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3616 attached , child_tidptr=0x5555567b05d0) = 14 [pid 3616] chdir("./12") = 0 [pid 3616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3616] setpgid(0, 0) = 0 [pid 3616] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3616] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3616] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "1000", 4) = 4 [pid 3616] close(3) = 0 [pid 3616] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3616] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3616] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3616] gettid() = 14 [pid 3616] process_vm_writev(14, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3616] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3616] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3616] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3616] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3616] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3616] close(3) = 0 [pid 3616] close(4) = 0 [pid 3616] close(5) = -1 EBADF (Bad file descriptor) [pid 3616] close(6) = -1 EBADF (Bad file descriptor) [pid 3616] close(7) = -1 EBADF (Bad file descriptor) [pid 3616] close(8) = -1 EBADF (Bad file descriptor) [pid 3616] close(9) = -1 EBADF (Bad file descriptor) [pid 3616] close(10) = -1 EBADF (Bad file descriptor) [pid 3616] close(11) = -1 EBADF (Bad file descriptor) [pid 3616] close(12) = -1 EBADF (Bad file descriptor) [pid 3616] close(13) = -1 EBADF (Bad file descriptor) [pid 3616] close(14) = -1 EBADF (Bad file descriptor) [pid 3616] close(15) = -1 EBADF (Bad file descriptor) [pid 3616] close(16) = -1 EBADF (Bad file descriptor) [pid 3616] close(17) = -1 EBADF (Bad file descriptor) [pid 3616] close(18) = -1 EBADF (Bad file descriptor) [pid 3616] close(19) = -1 EBADF (Bad file descriptor) [pid 3616] close(20) = -1 EBADF (Bad file descriptor) [pid 3616] close(21) = -1 EBADF (Bad file descriptor) [pid 3616] close(22) = -1 EBADF (Bad file descriptor) [pid 3616] close(23) = -1 EBADF (Bad file descriptor) [pid 3616] close(24) = -1 EBADF (Bad file descriptor) [pid 3616] close(25) = -1 EBADF (Bad file descriptor) [pid 3616] close(26) = -1 EBADF (Bad file descriptor) [pid 3616] close(27) = -1 EBADF (Bad file descriptor) [pid 3616] close(28) = -1 EBADF (Bad file descriptor) [pid 3616] close(29) = -1 EBADF (Bad file descriptor) [pid 3616] exit_group(0) = ? [pid 3616] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./12/binderfs") = 0 [pid 3603] umount2("./12/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./12/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./12/cgroup") = 0 [pid 3603] umount2("./12/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./12/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./12/cgroup.net") = 0 [pid 3603] umount2("./12/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./12/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./12/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./12") = 0 [pid 3603] mkdir("./13", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3617 attached [pid 3617] chdir("./13" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 15 [pid 3617] <... chdir resumed>) = 0 [pid 3617] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3617] setpgid(0, 0) = 0 [pid 3617] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3617] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3617] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3617] write(3, "1000", 4) = 4 [pid 3617] close(3) = 0 [pid 3617] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3617] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3617] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3617] gettid() = 15 [pid 3617] process_vm_writev(15, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3617] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3617] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3617] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3617] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3617] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3617] close(3) = 0 [pid 3617] close(4) = 0 [pid 3617] close(5) = -1 EBADF (Bad file descriptor) [pid 3617] close(6) = -1 EBADF (Bad file descriptor) [pid 3617] close(7) = -1 EBADF (Bad file descriptor) [pid 3617] close(8) = -1 EBADF (Bad file descriptor) [pid 3617] close(9) = -1 EBADF (Bad file descriptor) [pid 3617] close(10) = -1 EBADF (Bad file descriptor) [pid 3617] close(11) = -1 EBADF (Bad file descriptor) [pid 3617] close(12) = -1 EBADF (Bad file descriptor) [pid 3617] close(13) = -1 EBADF (Bad file descriptor) [pid 3617] close(14) = -1 EBADF (Bad file descriptor) [pid 3617] close(15) = -1 EBADF (Bad file descriptor) [pid 3617] close(16) = -1 EBADF (Bad file descriptor) [pid 3617] close(17) = -1 EBADF (Bad file descriptor) [pid 3617] close(18) = -1 EBADF (Bad file descriptor) [pid 3617] close(19) = -1 EBADF (Bad file descriptor) [pid 3617] close(20) = -1 EBADF (Bad file descriptor) [pid 3617] close(21) = -1 EBADF (Bad file descriptor) [pid 3617] close(22) = -1 EBADF (Bad file descriptor) [pid 3617] close(23) = -1 EBADF (Bad file descriptor) [pid 3617] close(24) = -1 EBADF (Bad file descriptor) [pid 3617] close(25) = -1 EBADF (Bad file descriptor) [pid 3617] close(26) = -1 EBADF (Bad file descriptor) [pid 3617] close(27) = -1 EBADF (Bad file descriptor) [pid 3617] close(28) = -1 EBADF (Bad file descriptor) [pid 3617] close(29) = -1 EBADF (Bad file descriptor) [pid 3617] exit_group(0) = ? [pid 3617] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./13/binderfs") = 0 [pid 3603] umount2("./13/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./13/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./13/cgroup") = 0 [pid 3603] umount2("./13/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./13/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./13/cgroup.net") = 0 [pid 3603] umount2("./13/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./13/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./13/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./13") = 0 [pid 3603] mkdir("./14", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3618 attached , child_tidptr=0x5555567b05d0) = 16 [pid 3618] chdir("./14") = 0 [pid 3618] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3618] setpgid(0, 0) = 0 [pid 3618] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3618] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3618] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3618] write(3, "1000", 4) = 4 [pid 3618] close(3) = 0 [pid 3618] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3618] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3618] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3618] gettid() = 16 [pid 3618] process_vm_writev(16, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3618] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3618] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3618] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3618] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3618] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3618] close(3) = 0 [pid 3618] close(4) = 0 [pid 3618] close(5) = -1 EBADF (Bad file descriptor) [pid 3618] close(6) = -1 EBADF (Bad file descriptor) [pid 3618] close(7) = -1 EBADF (Bad file descriptor) [pid 3618] close(8) = -1 EBADF (Bad file descriptor) [pid 3618] close(9) = -1 EBADF (Bad file descriptor) [pid 3618] close(10) = -1 EBADF (Bad file descriptor) [pid 3618] close(11) = -1 EBADF (Bad file descriptor) [pid 3618] close(12) = -1 EBADF (Bad file descriptor) [pid 3618] close(13) = -1 EBADF (Bad file descriptor) [pid 3618] close(14) = -1 EBADF (Bad file descriptor) [pid 3618] close(15) = -1 EBADF (Bad file descriptor) [pid 3618] close(16) = -1 EBADF (Bad file descriptor) [pid 3618] close(17) = -1 EBADF (Bad file descriptor) [pid 3618] close(18) = -1 EBADF (Bad file descriptor) [pid 3618] close(19) = -1 EBADF (Bad file descriptor) [pid 3618] close(20) = -1 EBADF (Bad file descriptor) [pid 3618] close(21) = -1 EBADF (Bad file descriptor) [pid 3618] close(22) = -1 EBADF (Bad file descriptor) [pid 3618] close(23) = -1 EBADF (Bad file descriptor) [pid 3618] close(24) = -1 EBADF (Bad file descriptor) [pid 3618] close(25) = -1 EBADF (Bad file descriptor) [pid 3618] close(26) = -1 EBADF (Bad file descriptor) [pid 3618] close(27) = -1 EBADF (Bad file descriptor) [pid 3618] close(28) = -1 EBADF (Bad file descriptor) [pid 3618] close(29) = -1 EBADF (Bad file descriptor) [pid 3618] exit_group(0) = ? [pid 3618] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=16, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./14/binderfs") = 0 [pid 3603] umount2("./14/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./14/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./14/cgroup") = 0 [pid 3603] umount2("./14/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./14/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./14/cgroup.net") = 0 [pid 3603] umount2("./14/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./14/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./14/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./14") = 0 [pid 3603] mkdir("./15", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 17 ./strace-static-x86_64: Process 3619 attached [pid 3619] chdir("./15") = 0 [pid 3619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3619] setpgid(0, 0) = 0 [pid 3619] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3619] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3619] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3619] write(3, "1000", 4) = 4 [pid 3619] close(3) = 0 [pid 3619] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3619] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3619] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3619] gettid() = 17 [pid 3619] process_vm_writev(17, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3619] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3619] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3619] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3619] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3619] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3619] close(3) = 0 [pid 3619] close(4) = 0 [pid 3619] close(5) = -1 EBADF (Bad file descriptor) [pid 3619] close(6) = -1 EBADF (Bad file descriptor) [pid 3619] close(7) = -1 EBADF (Bad file descriptor) [pid 3619] close(8) = -1 EBADF (Bad file descriptor) [pid 3619] close(9) = -1 EBADF (Bad file descriptor) [pid 3619] close(10) = -1 EBADF (Bad file descriptor) [pid 3619] close(11) = -1 EBADF (Bad file descriptor) [pid 3619] close(12) = -1 EBADF (Bad file descriptor) [pid 3619] close(13) = -1 EBADF (Bad file descriptor) [pid 3619] close(14) = -1 EBADF (Bad file descriptor) [pid 3619] close(15) = -1 EBADF (Bad file descriptor) [pid 3619] close(16) = -1 EBADF (Bad file descriptor) [pid 3619] close(17) = -1 EBADF (Bad file descriptor) [pid 3619] close(18) = -1 EBADF (Bad file descriptor) [pid 3619] close(19) = -1 EBADF (Bad file descriptor) [pid 3619] close(20) = -1 EBADF (Bad file descriptor) [pid 3619] close(21) = -1 EBADF (Bad file descriptor) [pid 3619] close(22) = -1 EBADF (Bad file descriptor) [pid 3619] close(23) = -1 EBADF (Bad file descriptor) [pid 3619] close(24) = -1 EBADF (Bad file descriptor) [pid 3619] close(25) = -1 EBADF (Bad file descriptor) [pid 3619] close(26) = -1 EBADF (Bad file descriptor) [pid 3619] close(27) = -1 EBADF (Bad file descriptor) [pid 3619] close(28) = -1 EBADF (Bad file descriptor) [pid 3619] close(29) = -1 EBADF (Bad file descriptor) [pid 3619] exit_group(0) = ? [pid 3619] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=17, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./15/binderfs") = 0 [pid 3603] umount2("./15/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./15/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./15/cgroup") = 0 [pid 3603] umount2("./15/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./15/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./15/cgroup.net") = 0 [pid 3603] umount2("./15/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./15/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./15/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./15") = 0 [pid 3603] mkdir("./16", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3620 attached , child_tidptr=0x5555567b05d0) = 18 [pid 3620] chdir("./16") = 0 [pid 3620] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3620] setpgid(0, 0) = 0 [pid 3620] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3620] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3620] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3620] write(3, "1000", 4) = 4 [pid 3620] close(3) = 0 [pid 3620] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3620] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3620] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3620] gettid() = 18 [pid 3620] process_vm_writev(18, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3620] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3620] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3620] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3620] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3620] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3620] close(3) = 0 [pid 3620] close(4) = 0 [pid 3620] close(5) = -1 EBADF (Bad file descriptor) [pid 3620] close(6) = -1 EBADF (Bad file descriptor) [pid 3620] close(7) = -1 EBADF (Bad file descriptor) [pid 3620] close(8) = -1 EBADF (Bad file descriptor) [pid 3620] close(9) = -1 EBADF (Bad file descriptor) [pid 3620] close(10) = -1 EBADF (Bad file descriptor) [pid 3620] close(11) = -1 EBADF (Bad file descriptor) [pid 3620] close(12) = -1 EBADF (Bad file descriptor) [pid 3620] close(13) = -1 EBADF (Bad file descriptor) [pid 3620] close(14) = -1 EBADF (Bad file descriptor) [pid 3620] close(15) = -1 EBADF (Bad file descriptor) [pid 3620] close(16) = -1 EBADF (Bad file descriptor) [pid 3620] close(17) = -1 EBADF (Bad file descriptor) [pid 3620] close(18) = -1 EBADF (Bad file descriptor) [pid 3620] close(19) = -1 EBADF (Bad file descriptor) [pid 3620] close(20) = -1 EBADF (Bad file descriptor) [pid 3620] close(21) = -1 EBADF (Bad file descriptor) [pid 3620] close(22) = -1 EBADF (Bad file descriptor) [pid 3620] close(23) = -1 EBADF (Bad file descriptor) [pid 3620] close(24) = -1 EBADF (Bad file descriptor) [pid 3620] close(25) = -1 EBADF (Bad file descriptor) [pid 3620] close(26) = -1 EBADF (Bad file descriptor) [pid 3620] close(27) = -1 EBADF (Bad file descriptor) [pid 3620] close(28) = -1 EBADF (Bad file descriptor) [pid 3620] close(29) = -1 EBADF (Bad file descriptor) [pid 3620] exit_group(0) = ? [pid 3620] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=18, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./16/binderfs") = 0 [pid 3603] umount2("./16/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./16/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./16/cgroup") = 0 [pid 3603] umount2("./16/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./16/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./16/cgroup.net") = 0 [pid 3603] umount2("./16/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./16/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./16/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./16") = 0 [pid 3603] mkdir("./17", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3621 attached , child_tidptr=0x5555567b05d0) = 19 [pid 3621] chdir("./17") = 0 [pid 3621] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3621] setpgid(0, 0) = 0 [pid 3621] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3621] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3621] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3621] write(3, "1000", 4) = 4 [pid 3621] close(3) = 0 [pid 3621] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3621] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3621] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3621] gettid() = 19 [pid 3621] process_vm_writev(19, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3621] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3621] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3621] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3621] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3621] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3621] close(3) = 0 [pid 3621] close(4) = 0 [pid 3621] close(5) = -1 EBADF (Bad file descriptor) [pid 3621] close(6) = -1 EBADF (Bad file descriptor) [pid 3621] close(7) = -1 EBADF (Bad file descriptor) [pid 3621] close(8) = -1 EBADF (Bad file descriptor) [pid 3621] close(9) = -1 EBADF (Bad file descriptor) [pid 3621] close(10) = -1 EBADF (Bad file descriptor) [pid 3621] close(11) = -1 EBADF (Bad file descriptor) [pid 3621] close(12) = -1 EBADF (Bad file descriptor) [pid 3621] close(13) = -1 EBADF (Bad file descriptor) [pid 3621] close(14) = -1 EBADF (Bad file descriptor) [pid 3621] close(15) = -1 EBADF (Bad file descriptor) [pid 3621] close(16) = -1 EBADF (Bad file descriptor) [pid 3621] close(17) = -1 EBADF (Bad file descriptor) [pid 3621] close(18) = -1 EBADF (Bad file descriptor) [pid 3621] close(19) = -1 EBADF (Bad file descriptor) [pid 3621] close(20) = -1 EBADF (Bad file descriptor) [pid 3621] close(21) = -1 EBADF (Bad file descriptor) [pid 3621] close(22) = -1 EBADF (Bad file descriptor) [pid 3621] close(23) = -1 EBADF (Bad file descriptor) [pid 3621] close(24) = -1 EBADF (Bad file descriptor) [pid 3621] close(25) = -1 EBADF (Bad file descriptor) [pid 3621] close(26) = -1 EBADF (Bad file descriptor) [pid 3621] close(27) = -1 EBADF (Bad file descriptor) [pid 3621] close(28) = -1 EBADF (Bad file descriptor) [pid 3621] close(29) = -1 EBADF (Bad file descriptor) [pid 3621] exit_group(0) = ? [pid 3621] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./17/binderfs") = 0 [pid 3603] umount2("./17/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./17/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./17/cgroup") = 0 [pid 3603] umount2("./17/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./17/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./17/cgroup.net") = 0 [pid 3603] umount2("./17/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./17/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./17/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./17") = 0 [pid 3603] mkdir("./18", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 20 ./strace-static-x86_64: Process 3622 attached [pid 3622] chdir("./18") = 0 [pid 3622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3622] setpgid(0, 0) = 0 [pid 3622] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3622] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3622] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3622] write(3, "1000", 4) = 4 [pid 3622] close(3) = 0 [pid 3622] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3622] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3622] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3622] gettid() = 20 [pid 3622] process_vm_writev(20, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3622] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3622] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3622] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3622] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3622] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3622] close(3) = 0 [pid 3622] close(4) = 0 [pid 3622] close(5) = -1 EBADF (Bad file descriptor) [pid 3622] close(6) = -1 EBADF (Bad file descriptor) [pid 3622] close(7) = -1 EBADF (Bad file descriptor) [pid 3622] close(8) = -1 EBADF (Bad file descriptor) [pid 3622] close(9) = -1 EBADF (Bad file descriptor) [pid 3622] close(10) = -1 EBADF (Bad file descriptor) [pid 3622] close(11) = -1 EBADF (Bad file descriptor) [pid 3622] close(12) = -1 EBADF (Bad file descriptor) [pid 3622] close(13) = -1 EBADF (Bad file descriptor) [pid 3622] close(14) = -1 EBADF (Bad file descriptor) [pid 3622] close(15) = -1 EBADF (Bad file descriptor) [pid 3622] close(16) = -1 EBADF (Bad file descriptor) [pid 3622] close(17) = -1 EBADF (Bad file descriptor) [pid 3622] close(18) = -1 EBADF (Bad file descriptor) [pid 3622] close(19) = -1 EBADF (Bad file descriptor) [pid 3622] close(20) = -1 EBADF (Bad file descriptor) [pid 3622] close(21) = -1 EBADF (Bad file descriptor) [pid 3622] close(22) = -1 EBADF (Bad file descriptor) [pid 3622] close(23) = -1 EBADF (Bad file descriptor) [pid 3622] close(24) = -1 EBADF (Bad file descriptor) [pid 3622] close(25) = -1 EBADF (Bad file descriptor) [pid 3622] close(26) = -1 EBADF (Bad file descriptor) [pid 3622] close(27) = -1 EBADF (Bad file descriptor) [pid 3622] close(28) = -1 EBADF (Bad file descriptor) [pid 3622] close(29) = -1 EBADF (Bad file descriptor) [pid 3622] exit_group(0) = ? [pid 3622] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./18/binderfs") = 0 [pid 3603] umount2("./18/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./18/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./18/cgroup") = 0 [pid 3603] umount2("./18/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./18/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./18/cgroup.net") = 0 [pid 3603] umount2("./18/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./18/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./18/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./18") = 0 [pid 3603] mkdir("./19", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3623 attached , child_tidptr=0x5555567b05d0) = 21 [pid 3623] chdir("./19") = 0 [pid 3623] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3623] setpgid(0, 0) = 0 [pid 3623] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3623] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3623] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3623] write(3, "1000", 4) = 4 [pid 3623] close(3) = 0 [pid 3623] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3623] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3623] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3623] gettid() = 21 [pid 3623] process_vm_writev(21, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3623] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3623] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3623] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3623] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3623] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3623] close(3) = 0 [pid 3623] close(4) = 0 [pid 3623] close(5) = -1 EBADF (Bad file descriptor) [pid 3623] close(6) = -1 EBADF (Bad file descriptor) [pid 3623] close(7) = -1 EBADF (Bad file descriptor) [pid 3623] close(8) = -1 EBADF (Bad file descriptor) [pid 3623] close(9) = -1 EBADF (Bad file descriptor) [pid 3623] close(10) = -1 EBADF (Bad file descriptor) [pid 3623] close(11) = -1 EBADF (Bad file descriptor) [pid 3623] close(12) = -1 EBADF (Bad file descriptor) [pid 3623] close(13) = -1 EBADF (Bad file descriptor) [pid 3623] close(14) = -1 EBADF (Bad file descriptor) [pid 3623] close(15) = -1 EBADF (Bad file descriptor) [pid 3623] close(16) = -1 EBADF (Bad file descriptor) [pid 3623] close(17) = -1 EBADF (Bad file descriptor) [pid 3623] close(18) = -1 EBADF (Bad file descriptor) [pid 3623] close(19) = -1 EBADF (Bad file descriptor) [pid 3623] close(20) = -1 EBADF (Bad file descriptor) [pid 3623] close(21) = -1 EBADF (Bad file descriptor) [pid 3623] close(22) = -1 EBADF (Bad file descriptor) [pid 3623] close(23) = -1 EBADF (Bad file descriptor) [pid 3623] close(24) = -1 EBADF (Bad file descriptor) [pid 3623] close(25) = -1 EBADF (Bad file descriptor) [pid 3623] close(26) = -1 EBADF (Bad file descriptor) [pid 3623] close(27) = -1 EBADF (Bad file descriptor) [pid 3623] close(28) = -1 EBADF (Bad file descriptor) [pid 3623] close(29) = -1 EBADF (Bad file descriptor) [pid 3623] exit_group(0) = ? [pid 3623] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./19/binderfs") = 0 [pid 3603] umount2("./19/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./19/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./19/cgroup") = 0 [pid 3603] umount2("./19/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./19/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./19/cgroup.net") = 0 [pid 3603] umount2("./19/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./19/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./19/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./19") = 0 [pid 3603] mkdir("./20", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3624 attached , child_tidptr=0x5555567b05d0) = 22 [pid 3624] chdir("./20") = 0 [pid 3624] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3624] setpgid(0, 0) = 0 [pid 3624] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3624] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3624] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3624] write(3, "1000", 4) = 4 [pid 3624] close(3) = 0 [pid 3624] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3624] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3624] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3624] gettid() = 22 [pid 3624] process_vm_writev(22, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3624] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3624] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3624] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3624] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3624] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3624] close(3) = 0 [pid 3624] close(4) = 0 [pid 3624] close(5) = -1 EBADF (Bad file descriptor) [pid 3624] close(6) = -1 EBADF (Bad file descriptor) [pid 3624] close(7) = -1 EBADF (Bad file descriptor) [pid 3624] close(8) = -1 EBADF (Bad file descriptor) [pid 3624] close(9) = -1 EBADF (Bad file descriptor) [pid 3624] close(10) = -1 EBADF (Bad file descriptor) [pid 3624] close(11) = -1 EBADF (Bad file descriptor) [pid 3624] close(12) = -1 EBADF (Bad file descriptor) [pid 3624] close(13) = -1 EBADF (Bad file descriptor) [pid 3624] close(14) = -1 EBADF (Bad file descriptor) [pid 3624] close(15) = -1 EBADF (Bad file descriptor) [pid 3624] close(16) = -1 EBADF (Bad file descriptor) [pid 3624] close(17) = -1 EBADF (Bad file descriptor) [pid 3624] close(18) = -1 EBADF (Bad file descriptor) [pid 3624] close(19) = -1 EBADF (Bad file descriptor) [pid 3624] close(20) = -1 EBADF (Bad file descriptor) [pid 3624] close(21) = -1 EBADF (Bad file descriptor) [pid 3624] close(22) = -1 EBADF (Bad file descriptor) [pid 3624] close(23) = -1 EBADF (Bad file descriptor) [pid 3624] close(24) = -1 EBADF (Bad file descriptor) [pid 3624] close(25) = -1 EBADF (Bad file descriptor) [pid 3624] close(26) = -1 EBADF (Bad file descriptor) [pid 3624] close(27) = -1 EBADF (Bad file descriptor) [pid 3624] close(28) = -1 EBADF (Bad file descriptor) [pid 3624] close(29) = -1 EBADF (Bad file descriptor) [pid 3624] exit_group(0) = ? [pid 3624] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./20/binderfs") = 0 [pid 3603] umount2("./20/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./20/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./20/cgroup") = 0 [pid 3603] umount2("./20/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./20/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./20/cgroup.net") = 0 [pid 3603] umount2("./20/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./20/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./20/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./20") = 0 [pid 3603] mkdir("./21", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3625 attached , child_tidptr=0x5555567b05d0) = 23 [pid 3625] chdir("./21") = 0 [pid 3625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3625] setpgid(0, 0) = 0 [pid 3625] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3625] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3625] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3625] write(3, "1000", 4) = 4 [pid 3625] close(3) = 0 [pid 3625] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3625] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3625] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3625] gettid() = 23 [pid 3625] process_vm_writev(23, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3625] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3625] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3625] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3625] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3625] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3625] close(3) = 0 [pid 3625] close(4) = 0 [pid 3625] close(5) = -1 EBADF (Bad file descriptor) [pid 3625] close(6) = -1 EBADF (Bad file descriptor) [pid 3625] close(7) = -1 EBADF (Bad file descriptor) [pid 3625] close(8) = -1 EBADF (Bad file descriptor) [pid 3625] close(9) = -1 EBADF (Bad file descriptor) [pid 3625] close(10) = -1 EBADF (Bad file descriptor) [pid 3625] close(11) = -1 EBADF (Bad file descriptor) [pid 3625] close(12) = -1 EBADF (Bad file descriptor) [pid 3625] close(13) = -1 EBADF (Bad file descriptor) [pid 3625] close(14) = -1 EBADF (Bad file descriptor) [pid 3625] close(15) = -1 EBADF (Bad file descriptor) [pid 3625] close(16) = -1 EBADF (Bad file descriptor) [pid 3625] close(17) = -1 EBADF (Bad file descriptor) [pid 3625] close(18) = -1 EBADF (Bad file descriptor) [pid 3625] close(19) = -1 EBADF (Bad file descriptor) [pid 3625] close(20) = -1 EBADF (Bad file descriptor) [pid 3625] close(21) = -1 EBADF (Bad file descriptor) [pid 3625] close(22) = -1 EBADF (Bad file descriptor) [pid 3625] close(23) = -1 EBADF (Bad file descriptor) [pid 3625] close(24) = -1 EBADF (Bad file descriptor) [pid 3625] close(25) = -1 EBADF (Bad file descriptor) [pid 3625] close(26) = -1 EBADF (Bad file descriptor) [pid 3625] close(27) = -1 EBADF (Bad file descriptor) [pid 3625] close(28) = -1 EBADF (Bad file descriptor) [pid 3625] close(29) = -1 EBADF (Bad file descriptor) [pid 3625] exit_group(0) = ? [pid 3625] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./21/binderfs") = 0 [pid 3603] umount2("./21/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./21/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./21/cgroup") = 0 [pid 3603] umount2("./21/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./21/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./21/cgroup.net") = 0 [pid 3603] umount2("./21/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./21/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./21/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./21") = 0 [pid 3603] mkdir("./22", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3626 attached , child_tidptr=0x5555567b05d0) = 24 [pid 3626] chdir("./22") = 0 [pid 3626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3626] setpgid(0, 0) = 0 [pid 3626] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3626] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3626] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3626] write(3, "1000", 4) = 4 [pid 3626] close(3) = 0 [pid 3626] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3626] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3626] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3626] gettid() = 24 [pid 3626] process_vm_writev(24, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3626] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3626] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3626] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3626] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3626] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3626] close(3) = 0 [pid 3626] close(4) = 0 [pid 3626] close(5) = -1 EBADF (Bad file descriptor) [pid 3626] close(6) = -1 EBADF (Bad file descriptor) [pid 3626] close(7) = -1 EBADF (Bad file descriptor) [pid 3626] close(8) = -1 EBADF (Bad file descriptor) [pid 3626] close(9) = -1 EBADF (Bad file descriptor) [pid 3626] close(10) = -1 EBADF (Bad file descriptor) [pid 3626] close(11) = -1 EBADF (Bad file descriptor) [pid 3626] close(12) = -1 EBADF (Bad file descriptor) [pid 3626] close(13) = -1 EBADF (Bad file descriptor) [pid 3626] close(14) = -1 EBADF (Bad file descriptor) [pid 3626] close(15) = -1 EBADF (Bad file descriptor) [pid 3626] close(16) = -1 EBADF (Bad file descriptor) [pid 3626] close(17) = -1 EBADF (Bad file descriptor) [pid 3626] close(18) = -1 EBADF (Bad file descriptor) [pid 3626] close(19) = -1 EBADF (Bad file descriptor) [pid 3626] close(20) = -1 EBADF (Bad file descriptor) [pid 3626] close(21) = -1 EBADF (Bad file descriptor) [pid 3626] close(22) = -1 EBADF (Bad file descriptor) [pid 3626] close(23) = -1 EBADF (Bad file descriptor) [pid 3626] close(24) = -1 EBADF (Bad file descriptor) [pid 3626] close(25) = -1 EBADF (Bad file descriptor) [pid 3626] close(26) = -1 EBADF (Bad file descriptor) [pid 3626] close(27) = -1 EBADF (Bad file descriptor) [pid 3626] close(28) = -1 EBADF (Bad file descriptor) [pid 3626] close(29) = -1 EBADF (Bad file descriptor) [pid 3626] exit_group(0) = ? [pid 3626] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=24, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./22/binderfs") = 0 [pid 3603] umount2("./22/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./22/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./22/cgroup") = 0 [pid 3603] umount2("./22/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./22/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./22/cgroup.net") = 0 [pid 3603] umount2("./22/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./22/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./22/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./22") = 0 [pid 3603] mkdir("./23", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3627 attached [pid 3627] chdir("./23" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 25 [pid 3627] <... chdir resumed>) = 0 [pid 3627] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3627] setpgid(0, 0) = 0 [pid 3627] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3627] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3627] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3627] write(3, "1000", 4) = 4 [pid 3627] close(3) = 0 [pid 3627] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3627] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3627] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3627] gettid() = 25 [pid 3627] process_vm_writev(25, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3627] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3627] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3627] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3627] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3627] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3627] close(3) = 0 [pid 3627] close(4) = 0 [pid 3627] close(5) = -1 EBADF (Bad file descriptor) [pid 3627] close(6) = -1 EBADF (Bad file descriptor) [pid 3627] close(7) = -1 EBADF (Bad file descriptor) [pid 3627] close(8) = -1 EBADF (Bad file descriptor) [pid 3627] close(9) = -1 EBADF (Bad file descriptor) [pid 3627] close(10) = -1 EBADF (Bad file descriptor) [pid 3627] close(11) = -1 EBADF (Bad file descriptor) [pid 3627] close(12) = -1 EBADF (Bad file descriptor) [pid 3627] close(13) = -1 EBADF (Bad file descriptor) [pid 3627] close(14) = -1 EBADF (Bad file descriptor) [pid 3627] close(15) = -1 EBADF (Bad file descriptor) [pid 3627] close(16) = -1 EBADF (Bad file descriptor) [pid 3627] close(17) = -1 EBADF (Bad file descriptor) [pid 3627] close(18) = -1 EBADF (Bad file descriptor) [pid 3627] close(19) = -1 EBADF (Bad file descriptor) [pid 3627] close(20) = -1 EBADF (Bad file descriptor) [pid 3627] close(21) = -1 EBADF (Bad file descriptor) [pid 3627] close(22) = -1 EBADF (Bad file descriptor) [pid 3627] close(23) = -1 EBADF (Bad file descriptor) [pid 3627] close(24) = -1 EBADF (Bad file descriptor) [pid 3627] close(25) = -1 EBADF (Bad file descriptor) [pid 3627] close(26) = -1 EBADF (Bad file descriptor) [pid 3627] close(27) = -1 EBADF (Bad file descriptor) [pid 3627] close(28) = -1 EBADF (Bad file descriptor) [pid 3627] close(29) = -1 EBADF (Bad file descriptor) [pid 3627] exit_group(0) = ? [pid 3627] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=25, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./23/binderfs") = 0 [pid 3603] umount2("./23/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./23/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./23/cgroup") = 0 [pid 3603] umount2("./23/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./23/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./23/cgroup.net") = 0 [pid 3603] umount2("./23/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./23/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./23/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./23") = 0 [pid 3603] mkdir("./24", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3628 attached , child_tidptr=0x5555567b05d0) = 26 [pid 3628] chdir("./24") = 0 [pid 3628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3628] setpgid(0, 0) = 0 [pid 3628] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3628] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3628] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3628] write(3, "1000", 4) = 4 [pid 3628] close(3) = 0 [pid 3628] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3628] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3628] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3628] gettid() = 26 [pid 3628] process_vm_writev(26, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3628] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3628] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3628] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3628] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3628] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3628] close(3) = 0 [pid 3628] close(4) = 0 [pid 3628] close(5) = -1 EBADF (Bad file descriptor) [pid 3628] close(6) = -1 EBADF (Bad file descriptor) [pid 3628] close(7) = -1 EBADF (Bad file descriptor) [pid 3628] close(8) = -1 EBADF (Bad file descriptor) [pid 3628] close(9) = -1 EBADF (Bad file descriptor) [pid 3628] close(10) = -1 EBADF (Bad file descriptor) [pid 3628] close(11) = -1 EBADF (Bad file descriptor) [pid 3628] close(12) = -1 EBADF (Bad file descriptor) [pid 3628] close(13) = -1 EBADF (Bad file descriptor) [pid 3628] close(14) = -1 EBADF (Bad file descriptor) [pid 3628] close(15) = -1 EBADF (Bad file descriptor) [pid 3628] close(16) = -1 EBADF (Bad file descriptor) [pid 3628] close(17) = -1 EBADF (Bad file descriptor) [pid 3628] close(18) = -1 EBADF (Bad file descriptor) [pid 3628] close(19) = -1 EBADF (Bad file descriptor) [pid 3628] close(20) = -1 EBADF (Bad file descriptor) [pid 3628] close(21) = -1 EBADF (Bad file descriptor) [pid 3628] close(22) = -1 EBADF (Bad file descriptor) [pid 3628] close(23) = -1 EBADF (Bad file descriptor) [pid 3628] close(24) = -1 EBADF (Bad file descriptor) [pid 3628] close(25) = -1 EBADF (Bad file descriptor) [pid 3628] close(26) = -1 EBADF (Bad file descriptor) [pid 3628] close(27) = -1 EBADF (Bad file descriptor) [pid 3628] close(28) = -1 EBADF (Bad file descriptor) [pid 3628] close(29) = -1 EBADF (Bad file descriptor) [pid 3628] exit_group(0) = ? [pid 3628] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=26, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./24/binderfs") = 0 [pid 3603] umount2("./24/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./24/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./24/cgroup") = 0 [pid 3603] umount2("./24/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./24/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./24/cgroup.net") = 0 [pid 3603] umount2("./24/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./24/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./24/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./24") = 0 [pid 3603] mkdir("./25", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3629 attached , child_tidptr=0x5555567b05d0) = 27 [pid 3629] chdir("./25") = 0 [pid 3629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3629] setpgid(0, 0) = 0 [pid 3629] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3629] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3629] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3629] write(3, "1000", 4) = 4 [pid 3629] close(3) = 0 [pid 3629] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3629] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3629] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3629] gettid() = 27 [pid 3629] process_vm_writev(27, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3629] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3629] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3629] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3629] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3629] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3629] close(3) = 0 [pid 3629] close(4) = 0 [pid 3629] close(5) = -1 EBADF (Bad file descriptor) [pid 3629] close(6) = -1 EBADF (Bad file descriptor) [pid 3629] close(7) = -1 EBADF (Bad file descriptor) [pid 3629] close(8) = -1 EBADF (Bad file descriptor) [pid 3629] close(9) = -1 EBADF (Bad file descriptor) [pid 3629] close(10) = -1 EBADF (Bad file descriptor) [pid 3629] close(11) = -1 EBADF (Bad file descriptor) [pid 3629] close(12) = -1 EBADF (Bad file descriptor) [pid 3629] close(13) = -1 EBADF (Bad file descriptor) [pid 3629] close(14) = -1 EBADF (Bad file descriptor) [pid 3629] close(15) = -1 EBADF (Bad file descriptor) [pid 3629] close(16) = -1 EBADF (Bad file descriptor) [pid 3629] close(17) = -1 EBADF (Bad file descriptor) [pid 3629] close(18) = -1 EBADF (Bad file descriptor) [pid 3629] close(19) = -1 EBADF (Bad file descriptor) [pid 3629] close(20) = -1 EBADF (Bad file descriptor) [pid 3629] close(21) = -1 EBADF (Bad file descriptor) [pid 3629] close(22) = -1 EBADF (Bad file descriptor) [pid 3629] close(23) = -1 EBADF (Bad file descriptor) [pid 3629] close(24) = -1 EBADF (Bad file descriptor) [pid 3629] close(25) = -1 EBADF (Bad file descriptor) [pid 3629] close(26) = -1 EBADF (Bad file descriptor) [pid 3629] close(27) = -1 EBADF (Bad file descriptor) [pid 3629] close(28) = -1 EBADF (Bad file descriptor) [pid 3629] close(29) = -1 EBADF (Bad file descriptor) [pid 3629] exit_group(0) = ? [pid 3629] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=27, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./25/binderfs") = 0 [pid 3603] umount2("./25/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./25/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./25/cgroup") = 0 [pid 3603] umount2("./25/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./25/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./25/cgroup.net") = 0 [pid 3603] umount2("./25/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./25/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./25/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./25") = 0 [pid 3603] mkdir("./26", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3630 attached [pid 3630] chdir("./26" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 28 [pid 3630] <... chdir resumed>) = 0 [pid 3630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3630] setpgid(0, 0) = 0 [pid 3630] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3630] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3630] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3630] write(3, "1000", 4) = 4 [pid 3630] close(3) = 0 [pid 3630] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3630] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3630] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3630] gettid() = 28 [pid 3630] process_vm_writev(28, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3630] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3630] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3630] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3630] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3630] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3630] close(3) = 0 [pid 3630] close(4) = 0 [pid 3630] close(5) = -1 EBADF (Bad file descriptor) [pid 3630] close(6) = -1 EBADF (Bad file descriptor) [pid 3630] close(7) = -1 EBADF (Bad file descriptor) [pid 3630] close(8) = -1 EBADF (Bad file descriptor) [pid 3630] close(9) = -1 EBADF (Bad file descriptor) [pid 3630] close(10) = -1 EBADF (Bad file descriptor) [pid 3630] close(11) = -1 EBADF (Bad file descriptor) [pid 3630] close(12) = -1 EBADF (Bad file descriptor) [pid 3630] close(13) = -1 EBADF (Bad file descriptor) [pid 3630] close(14) = -1 EBADF (Bad file descriptor) [pid 3630] close(15) = -1 EBADF (Bad file descriptor) [pid 3630] close(16) = -1 EBADF (Bad file descriptor) [pid 3630] close(17) = -1 EBADF (Bad file descriptor) [pid 3630] close(18) = -1 EBADF (Bad file descriptor) [pid 3630] close(19) = -1 EBADF (Bad file descriptor) [pid 3630] close(20) = -1 EBADF (Bad file descriptor) [pid 3630] close(21) = -1 EBADF (Bad file descriptor) [pid 3630] close(22) = -1 EBADF (Bad file descriptor) [pid 3630] close(23) = -1 EBADF (Bad file descriptor) [pid 3630] close(24) = -1 EBADF (Bad file descriptor) [pid 3630] close(25) = -1 EBADF (Bad file descriptor) [pid 3630] close(26) = -1 EBADF (Bad file descriptor) [pid 3630] close(27) = -1 EBADF (Bad file descriptor) [pid 3630] close(28) = -1 EBADF (Bad file descriptor) [pid 3630] close(29) = -1 EBADF (Bad file descriptor) [pid 3630] exit_group(0) = ? [pid 3630] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=28, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./26/binderfs") = 0 [pid 3603] umount2("./26/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./26/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./26/cgroup") = 0 [pid 3603] umount2("./26/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./26/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./26/cgroup.net") = 0 [pid 3603] umount2("./26/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./26/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./26/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./26") = 0 [pid 3603] mkdir("./27", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3631 attached , child_tidptr=0x5555567b05d0) = 29 [pid 3631] chdir("./27") = 0 [pid 3631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3631] setpgid(0, 0) = 0 [pid 3631] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3631] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3631] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3631] write(3, "1000", 4) = 4 [pid 3631] close(3) = 0 [pid 3631] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3631] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3631] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3631] gettid() = 29 [pid 3631] process_vm_writev(29, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3631] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3631] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3631] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3631] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3631] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3631] close(3) = 0 [pid 3631] close(4) = 0 [pid 3631] close(5) = -1 EBADF (Bad file descriptor) [pid 3631] close(6) = -1 EBADF (Bad file descriptor) [pid 3631] close(7) = -1 EBADF (Bad file descriptor) [pid 3631] close(8) = -1 EBADF (Bad file descriptor) [pid 3631] close(9) = -1 EBADF (Bad file descriptor) [pid 3631] close(10) = -1 EBADF (Bad file descriptor) [pid 3631] close(11) = -1 EBADF (Bad file descriptor) [pid 3631] close(12) = -1 EBADF (Bad file descriptor) [pid 3631] close(13) = -1 EBADF (Bad file descriptor) [pid 3631] close(14) = -1 EBADF (Bad file descriptor) [pid 3631] close(15) = -1 EBADF (Bad file descriptor) [pid 3631] close(16) = -1 EBADF (Bad file descriptor) [pid 3631] close(17) = -1 EBADF (Bad file descriptor) [pid 3631] close(18) = -1 EBADF (Bad file descriptor) [pid 3631] close(19) = -1 EBADF (Bad file descriptor) [pid 3631] close(20) = -1 EBADF (Bad file descriptor) [pid 3631] close(21) = -1 EBADF (Bad file descriptor) [pid 3631] close(22) = -1 EBADF (Bad file descriptor) [pid 3631] close(23) = -1 EBADF (Bad file descriptor) [pid 3631] close(24) = -1 EBADF (Bad file descriptor) [pid 3631] close(25) = -1 EBADF (Bad file descriptor) [pid 3631] close(26) = -1 EBADF (Bad file descriptor) [pid 3631] close(27) = -1 EBADF (Bad file descriptor) [pid 3631] close(28) = -1 EBADF (Bad file descriptor) [pid 3631] close(29) = -1 EBADF (Bad file descriptor) [pid 3631] exit_group(0) = ? [pid 3631] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=29, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./27/binderfs") = 0 [pid 3603] umount2("./27/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./27/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./27/cgroup") = 0 [pid 3603] umount2("./27/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./27/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./27/cgroup.net") = 0 [pid 3603] umount2("./27/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./27/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./27/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./27") = 0 [pid 3603] mkdir("./28", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3632 attached [pid 3632] chdir("./28" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 30 [pid 3632] <... chdir resumed>) = 0 [pid 3632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3632] setpgid(0, 0) = 0 [pid 3632] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3632] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3632] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3632] write(3, "1000", 4) = 4 [pid 3632] close(3) = 0 [pid 3632] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3632] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3632] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3632] gettid() = 30 [pid 3632] process_vm_writev(30, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3632] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3632] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3632] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3632] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3632] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3632] close(3) = 0 [pid 3632] close(4) = 0 [pid 3632] close(5) = -1 EBADF (Bad file descriptor) [pid 3632] close(6) = -1 EBADF (Bad file descriptor) [pid 3632] close(7) = -1 EBADF (Bad file descriptor) [pid 3632] close(8) = -1 EBADF (Bad file descriptor) [pid 3632] close(9) = -1 EBADF (Bad file descriptor) [pid 3632] close(10) = -1 EBADF (Bad file descriptor) [pid 3632] close(11) = -1 EBADF (Bad file descriptor) [pid 3632] close(12) = -1 EBADF (Bad file descriptor) [pid 3632] close(13) = -1 EBADF (Bad file descriptor) [pid 3632] close(14) = -1 EBADF (Bad file descriptor) [pid 3632] close(15) = -1 EBADF (Bad file descriptor) [pid 3632] close(16) = -1 EBADF (Bad file descriptor) [pid 3632] close(17) = -1 EBADF (Bad file descriptor) [pid 3632] close(18) = -1 EBADF (Bad file descriptor) [pid 3632] close(19) = -1 EBADF (Bad file descriptor) [pid 3632] close(20) = -1 EBADF (Bad file descriptor) [pid 3632] close(21) = -1 EBADF (Bad file descriptor) [pid 3632] close(22) = -1 EBADF (Bad file descriptor) [pid 3632] close(23) = -1 EBADF (Bad file descriptor) [pid 3632] close(24) = -1 EBADF (Bad file descriptor) [pid 3632] close(25) = -1 EBADF (Bad file descriptor) [pid 3632] close(26) = -1 EBADF (Bad file descriptor) [pid 3632] close(27) = -1 EBADF (Bad file descriptor) [pid 3632] close(28) = -1 EBADF (Bad file descriptor) [pid 3632] close(29) = -1 EBADF (Bad file descriptor) [pid 3632] exit_group(0) = ? [pid 3632] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=30, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./28/binderfs") = 0 [pid 3603] umount2("./28/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./28/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./28/cgroup") = 0 [pid 3603] umount2("./28/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./28/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./28/cgroup.net") = 0 [pid 3603] umount2("./28/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./28/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./28/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./28") = 0 [pid 3603] mkdir("./29", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3633 attached , child_tidptr=0x5555567b05d0) = 31 [pid 3633] chdir("./29") = 0 [pid 3633] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3633] setpgid(0, 0) = 0 [pid 3633] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3633] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3633] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3633] write(3, "1000", 4) = 4 [pid 3633] close(3) = 0 [pid 3633] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3633] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3633] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3633] gettid() = 31 [pid 3633] process_vm_writev(31, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3633] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3633] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3633] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3633] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3633] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3633] close(3) = 0 [pid 3633] close(4) = 0 [pid 3633] close(5) = -1 EBADF (Bad file descriptor) [pid 3633] close(6) = -1 EBADF (Bad file descriptor) [pid 3633] close(7) = -1 EBADF (Bad file descriptor) [pid 3633] close(8) = -1 EBADF (Bad file descriptor) [pid 3633] close(9) = -1 EBADF (Bad file descriptor) [pid 3633] close(10) = -1 EBADF (Bad file descriptor) [pid 3633] close(11) = -1 EBADF (Bad file descriptor) [pid 3633] close(12) = -1 EBADF (Bad file descriptor) [pid 3633] close(13) = -1 EBADF (Bad file descriptor) [pid 3633] close(14) = -1 EBADF (Bad file descriptor) [pid 3633] close(15) = -1 EBADF (Bad file descriptor) [pid 3633] close(16) = -1 EBADF (Bad file descriptor) [pid 3633] close(17) = -1 EBADF (Bad file descriptor) [pid 3633] close(18) = -1 EBADF (Bad file descriptor) [pid 3633] close(19) = -1 EBADF (Bad file descriptor) [pid 3633] close(20) = -1 EBADF (Bad file descriptor) [pid 3633] close(21) = -1 EBADF (Bad file descriptor) [pid 3633] close(22) = -1 EBADF (Bad file descriptor) [pid 3633] close(23) = -1 EBADF (Bad file descriptor) [pid 3633] close(24) = -1 EBADF (Bad file descriptor) [pid 3633] close(25) = -1 EBADF (Bad file descriptor) [pid 3633] close(26) = -1 EBADF (Bad file descriptor) [pid 3633] close(27) = -1 EBADF (Bad file descriptor) [pid 3633] close(28) = -1 EBADF (Bad file descriptor) [pid 3633] close(29) = -1 EBADF (Bad file descriptor) [pid 3633] exit_group(0) = ? [pid 3633] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=31, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./29/binderfs") = 0 [pid 3603] umount2("./29/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./29/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./29/cgroup") = 0 [pid 3603] umount2("./29/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./29/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./29/cgroup.net") = 0 [pid 3603] umount2("./29/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./29/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./29/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./29") = 0 [pid 3603] mkdir("./30", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3634 attached , child_tidptr=0x5555567b05d0) = 32 [pid 3634] chdir("./30") = 0 [pid 3634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3634] setpgid(0, 0) = 0 [pid 3634] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3634] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3634] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3634] write(3, "1000", 4) = 4 [pid 3634] close(3) = 0 [pid 3634] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3634] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3634] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3634] gettid() = 32 [pid 3634] process_vm_writev(32, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3634] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3634] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3634] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3634] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3634] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3634] close(3) = 0 [pid 3634] close(4) = 0 [pid 3634] close(5) = -1 EBADF (Bad file descriptor) [pid 3634] close(6) = -1 EBADF (Bad file descriptor) [pid 3634] close(7) = -1 EBADF (Bad file descriptor) [pid 3634] close(8) = -1 EBADF (Bad file descriptor) [pid 3634] close(9) = -1 EBADF (Bad file descriptor) [pid 3634] close(10) = -1 EBADF (Bad file descriptor) [pid 3634] close(11) = -1 EBADF (Bad file descriptor) [pid 3634] close(12) = -1 EBADF (Bad file descriptor) [pid 3634] close(13) = -1 EBADF (Bad file descriptor) [pid 3634] close(14) = -1 EBADF (Bad file descriptor) [pid 3634] close(15) = -1 EBADF (Bad file descriptor) [pid 3634] close(16) = -1 EBADF (Bad file descriptor) [pid 3634] close(17) = -1 EBADF (Bad file descriptor) [pid 3634] close(18) = -1 EBADF (Bad file descriptor) [pid 3634] close(19) = -1 EBADF (Bad file descriptor) [pid 3634] close(20) = -1 EBADF (Bad file descriptor) [pid 3634] close(21) = -1 EBADF (Bad file descriptor) [pid 3634] close(22) = -1 EBADF (Bad file descriptor) [pid 3634] close(23) = -1 EBADF (Bad file descriptor) [pid 3634] close(24) = -1 EBADF (Bad file descriptor) [pid 3634] close(25) = -1 EBADF (Bad file descriptor) [pid 3634] close(26) = -1 EBADF (Bad file descriptor) [pid 3634] close(27) = -1 EBADF (Bad file descriptor) [pid 3634] close(28) = -1 EBADF (Bad file descriptor) [pid 3634] close(29) = -1 EBADF (Bad file descriptor) [pid 3634] exit_group(0) = ? [pid 3634] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=32, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./30/binderfs") = 0 [pid 3603] umount2("./30/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./30/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./30/cgroup") = 0 [pid 3603] umount2("./30/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./30/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./30/cgroup.net") = 0 [pid 3603] umount2("./30/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./30/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./30/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./30") = 0 [pid 3603] mkdir("./31", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3635 attached [pid 3635] chdir("./31") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 33 [pid 3635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3635] setpgid(0, 0) = 0 [pid 3635] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3635] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3635] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3635] write(3, "1000", 4) = 4 [pid 3635] close(3) = 0 [pid 3635] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3635] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3635] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3635] gettid() = 33 [pid 3635] process_vm_writev(33, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3635] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3635] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3635] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3635] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3635] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3635] close(3) = 0 [pid 3635] close(4) = 0 [pid 3635] close(5) = -1 EBADF (Bad file descriptor) [pid 3635] close(6) = -1 EBADF (Bad file descriptor) [pid 3635] close(7) = -1 EBADF (Bad file descriptor) [pid 3635] close(8) = -1 EBADF (Bad file descriptor) [pid 3635] close(9) = -1 EBADF (Bad file descriptor) [pid 3635] close(10) = -1 EBADF (Bad file descriptor) [pid 3635] close(11) = -1 EBADF (Bad file descriptor) [pid 3635] close(12) = -1 EBADF (Bad file descriptor) [pid 3635] close(13) = -1 EBADF (Bad file descriptor) [pid 3635] close(14) = -1 EBADF (Bad file descriptor) [pid 3635] close(15) = -1 EBADF (Bad file descriptor) [pid 3635] close(16) = -1 EBADF (Bad file descriptor) [pid 3635] close(17) = -1 EBADF (Bad file descriptor) [pid 3635] close(18) = -1 EBADF (Bad file descriptor) [pid 3635] close(19) = -1 EBADF (Bad file descriptor) [pid 3635] close(20) = -1 EBADF (Bad file descriptor) [pid 3635] close(21) = -1 EBADF (Bad file descriptor) [pid 3635] close(22) = -1 EBADF (Bad file descriptor) [pid 3635] close(23) = -1 EBADF (Bad file descriptor) [pid 3635] close(24) = -1 EBADF (Bad file descriptor) [pid 3635] close(25) = -1 EBADF (Bad file descriptor) [pid 3635] close(26) = -1 EBADF (Bad file descriptor) [pid 3635] close(27) = -1 EBADF (Bad file descriptor) [pid 3635] close(28) = -1 EBADF (Bad file descriptor) [pid 3635] close(29) = -1 EBADF (Bad file descriptor) [pid 3635] exit_group(0) = ? [pid 3635] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=33, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./31/binderfs") = 0 [pid 3603] umount2("./31/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./31/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./31/cgroup") = 0 [pid 3603] umount2("./31/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./31/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./31/cgroup.net") = 0 [pid 3603] umount2("./31/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./31/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./31/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./31") = 0 [pid 3603] mkdir("./32", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 34 ./strace-static-x86_64: Process 3636 attached [pid 3636] chdir("./32") = 0 [pid 3636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3636] setpgid(0, 0) = 0 [pid 3636] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3636] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3636] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3636] write(3, "1000", 4) = 4 [pid 3636] close(3) = 0 [pid 3636] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3636] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3636] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3636] gettid() = 34 [pid 3636] process_vm_writev(34, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3636] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3636] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3636] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3636] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3636] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3636] close(3) = 0 [pid 3636] close(4) = 0 [pid 3636] close(5) = -1 EBADF (Bad file descriptor) [pid 3636] close(6) = -1 EBADF (Bad file descriptor) [pid 3636] close(7) = -1 EBADF (Bad file descriptor) [pid 3636] close(8) = -1 EBADF (Bad file descriptor) [pid 3636] close(9) = -1 EBADF (Bad file descriptor) [pid 3636] close(10) = -1 EBADF (Bad file descriptor) [pid 3636] close(11) = -1 EBADF (Bad file descriptor) [pid 3636] close(12) = -1 EBADF (Bad file descriptor) [pid 3636] close(13) = -1 EBADF (Bad file descriptor) [pid 3636] close(14) = -1 EBADF (Bad file descriptor) [pid 3636] close(15) = -1 EBADF (Bad file descriptor) [pid 3636] close(16) = -1 EBADF (Bad file descriptor) [pid 3636] close(17) = -1 EBADF (Bad file descriptor) [pid 3636] close(18) = -1 EBADF (Bad file descriptor) [pid 3636] close(19) = -1 EBADF (Bad file descriptor) [pid 3636] close(20) = -1 EBADF (Bad file descriptor) [pid 3636] close(21) = -1 EBADF (Bad file descriptor) [pid 3636] close(22) = -1 EBADF (Bad file descriptor) [pid 3636] close(23) = -1 EBADF (Bad file descriptor) [pid 3636] close(24) = -1 EBADF (Bad file descriptor) [pid 3636] close(25) = -1 EBADF (Bad file descriptor) [pid 3636] close(26) = -1 EBADF (Bad file descriptor) [pid 3636] close(27) = -1 EBADF (Bad file descriptor) [pid 3636] close(28) = -1 EBADF (Bad file descriptor) [pid 3636] close(29) = -1 EBADF (Bad file descriptor) [pid 3636] exit_group(0) = ? [pid 3636] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=34, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./32/binderfs") = 0 [pid 3603] umount2("./32/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./32/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./32/cgroup") = 0 [pid 3603] umount2("./32/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./32/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./32/cgroup.net") = 0 [pid 3603] umount2("./32/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./32/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./32/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./32") = 0 [pid 3603] mkdir("./33", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3637 attached , child_tidptr=0x5555567b05d0) = 35 [pid 3637] chdir("./33") = 0 [pid 3637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3637] setpgid(0, 0) = 0 [pid 3637] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3637] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3637] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3637] write(3, "1000", 4) = 4 [pid 3637] close(3) = 0 [pid 3637] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3637] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3637] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3637] gettid() = 35 [pid 3637] process_vm_writev(35, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3637] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3637] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3637] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3637] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3637] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3637] close(3) = 0 [pid 3637] close(4) = 0 [pid 3637] close(5) = -1 EBADF (Bad file descriptor) [pid 3637] close(6) = -1 EBADF (Bad file descriptor) [pid 3637] close(7) = -1 EBADF (Bad file descriptor) [pid 3637] close(8) = -1 EBADF (Bad file descriptor) [pid 3637] close(9) = -1 EBADF (Bad file descriptor) [pid 3637] close(10) = -1 EBADF (Bad file descriptor) [pid 3637] close(11) = -1 EBADF (Bad file descriptor) [pid 3637] close(12) = -1 EBADF (Bad file descriptor) [pid 3637] close(13) = -1 EBADF (Bad file descriptor) [pid 3637] close(14) = -1 EBADF (Bad file descriptor) [pid 3637] close(15) = -1 EBADF (Bad file descriptor) [pid 3637] close(16) = -1 EBADF (Bad file descriptor) [pid 3637] close(17) = -1 EBADF (Bad file descriptor) [pid 3637] close(18) = -1 EBADF (Bad file descriptor) [pid 3637] close(19) = -1 EBADF (Bad file descriptor) [pid 3637] close(20) = -1 EBADF (Bad file descriptor) [pid 3637] close(21) = -1 EBADF (Bad file descriptor) [pid 3637] close(22) = -1 EBADF (Bad file descriptor) [pid 3637] close(23) = -1 EBADF (Bad file descriptor) [pid 3637] close(24) = -1 EBADF (Bad file descriptor) [pid 3637] close(25) = -1 EBADF (Bad file descriptor) [pid 3637] close(26) = -1 EBADF (Bad file descriptor) [pid 3637] close(27) = -1 EBADF (Bad file descriptor) [pid 3637] close(28) = -1 EBADF (Bad file descriptor) [pid 3637] close(29) = -1 EBADF (Bad file descriptor) [pid 3637] exit_group(0) = ? [pid 3637] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=35, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3603] umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./33/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./33/binderfs") = 0 [pid 3603] umount2("./33/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./33/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./33/cgroup") = 0 [pid 3603] umount2("./33/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./33/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./33/cgroup.net") = 0 [pid 3603] umount2("./33/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./33/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./33/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./33") = 0 [pid 3603] mkdir("./34", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3638 attached [pid 3638] chdir("./34" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 36 [pid 3638] <... chdir resumed>) = 0 [pid 3638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3638] setpgid(0, 0) = 0 [pid 3638] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3638] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3638] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3638] write(3, "1000", 4) = 4 [pid 3638] close(3) = 0 [pid 3638] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3638] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3638] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3638] gettid() = 36 [pid 3638] process_vm_writev(36, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3638] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3638] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3638] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3638] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3638] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3638] close(3) = 0 [pid 3638] close(4) = 0 [pid 3638] close(5) = -1 EBADF (Bad file descriptor) [pid 3638] close(6) = -1 EBADF (Bad file descriptor) [pid 3638] close(7) = -1 EBADF (Bad file descriptor) [pid 3638] close(8) = -1 EBADF (Bad file descriptor) [pid 3638] close(9) = -1 EBADF (Bad file descriptor) [pid 3638] close(10) = -1 EBADF (Bad file descriptor) [pid 3638] close(11) = -1 EBADF (Bad file descriptor) [pid 3638] close(12) = -1 EBADF (Bad file descriptor) [pid 3638] close(13) = -1 EBADF (Bad file descriptor) [pid 3638] close(14) = -1 EBADF (Bad file descriptor) [pid 3638] close(15) = -1 EBADF (Bad file descriptor) [pid 3638] close(16) = -1 EBADF (Bad file descriptor) [pid 3638] close(17) = -1 EBADF (Bad file descriptor) [pid 3638] close(18) = -1 EBADF (Bad file descriptor) [pid 3638] close(19) = -1 EBADF (Bad file descriptor) [pid 3638] close(20) = -1 EBADF (Bad file descriptor) [pid 3638] close(21) = -1 EBADF (Bad file descriptor) [pid 3638] close(22) = -1 EBADF (Bad file descriptor) [pid 3638] close(23) = -1 EBADF (Bad file descriptor) [pid 3638] close(24) = -1 EBADF (Bad file descriptor) [pid 3638] close(25) = -1 EBADF (Bad file descriptor) [pid 3638] close(26) = -1 EBADF (Bad file descriptor) [pid 3638] close(27) = -1 EBADF (Bad file descriptor) [pid 3638] close(28) = -1 EBADF (Bad file descriptor) [pid 3638] close(29) = -1 EBADF (Bad file descriptor) [pid 3638] exit_group(0) = ? [pid 3638] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=36, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./34/binderfs") = 0 [pid 3603] umount2("./34/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./34/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./34/cgroup") = 0 [pid 3603] umount2("./34/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./34/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./34/cgroup.net") = 0 [pid 3603] umount2("./34/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./34/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./34/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./34") = 0 [pid 3603] mkdir("./35", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3639 attached , child_tidptr=0x5555567b05d0) = 37 [pid 3639] chdir("./35") = 0 [pid 3639] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3639] setpgid(0, 0) = 0 [pid 3639] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3639] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3639] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3639] write(3, "1000", 4) = 4 [pid 3639] close(3) = 0 [pid 3639] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3639] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3639] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3639] gettid() = 37 [pid 3639] process_vm_writev(37, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3639] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3639] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3639] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3639] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3639] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3639] close(3) = 0 [pid 3639] close(4) = 0 [pid 3639] close(5) = -1 EBADF (Bad file descriptor) [pid 3639] close(6) = -1 EBADF (Bad file descriptor) [pid 3639] close(7) = -1 EBADF (Bad file descriptor) [pid 3639] close(8) = -1 EBADF (Bad file descriptor) [pid 3639] close(9) = -1 EBADF (Bad file descriptor) [pid 3639] close(10) = -1 EBADF (Bad file descriptor) [pid 3639] close(11) = -1 EBADF (Bad file descriptor) [pid 3639] close(12) = -1 EBADF (Bad file descriptor) [pid 3639] close(13) = -1 EBADF (Bad file descriptor) [pid 3639] close(14) = -1 EBADF (Bad file descriptor) [pid 3639] close(15) = -1 EBADF (Bad file descriptor) [pid 3639] close(16) = -1 EBADF (Bad file descriptor) [pid 3639] close(17) = -1 EBADF (Bad file descriptor) [pid 3639] close(18) = -1 EBADF (Bad file descriptor) [pid 3639] close(19) = -1 EBADF (Bad file descriptor) [pid 3639] close(20) = -1 EBADF (Bad file descriptor) [pid 3639] close(21) = -1 EBADF (Bad file descriptor) [pid 3639] close(22) = -1 EBADF (Bad file descriptor) [pid 3639] close(23) = -1 EBADF (Bad file descriptor) [pid 3639] close(24) = -1 EBADF (Bad file descriptor) [pid 3639] close(25) = -1 EBADF (Bad file descriptor) [pid 3639] close(26) = -1 EBADF (Bad file descriptor) [pid 3639] close(27) = -1 EBADF (Bad file descriptor) [pid 3639] close(28) = -1 EBADF (Bad file descriptor) [pid 3639] close(29) = -1 EBADF (Bad file descriptor) [pid 3639] exit_group(0) = ? [pid 3639] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=37, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3603] umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./35/binderfs") = 0 [pid 3603] umount2("./35/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./35/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./35/cgroup") = 0 [pid 3603] umount2("./35/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./35/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./35/cgroup.net") = 0 [pid 3603] umount2("./35/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./35/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./35/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./35") = 0 [pid 3603] mkdir("./36", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 38 ./strace-static-x86_64: Process 3640 attached [pid 3640] chdir("./36") = 0 [pid 3640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3640] setpgid(0, 0) = 0 [pid 3640] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3640] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3640] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3640] write(3, "1000", 4) = 4 [pid 3640] close(3) = 0 [pid 3640] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3640] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3640] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3640] gettid() = 38 [pid 3640] process_vm_writev(38, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3640] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3640] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3640] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3640] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3640] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3640] close(3) = 0 [pid 3640] close(4) = 0 [pid 3640] close(5) = -1 EBADF (Bad file descriptor) [pid 3640] close(6) = -1 EBADF (Bad file descriptor) [pid 3640] close(7) = -1 EBADF (Bad file descriptor) [pid 3640] close(8) = -1 EBADF (Bad file descriptor) [pid 3640] close(9) = -1 EBADF (Bad file descriptor) [pid 3640] close(10) = -1 EBADF (Bad file descriptor) [pid 3640] close(11) = -1 EBADF (Bad file descriptor) [pid 3640] close(12) = -1 EBADF (Bad file descriptor) [pid 3640] close(13) = -1 EBADF (Bad file descriptor) [pid 3640] close(14) = -1 EBADF (Bad file descriptor) [pid 3640] close(15) = -1 EBADF (Bad file descriptor) [pid 3640] close(16) = -1 EBADF (Bad file descriptor) [pid 3640] close(17) = -1 EBADF (Bad file descriptor) [pid 3640] close(18) = -1 EBADF (Bad file descriptor) [pid 3640] close(19) = -1 EBADF (Bad file descriptor) [pid 3640] close(20) = -1 EBADF (Bad file descriptor) [pid 3640] close(21) = -1 EBADF (Bad file descriptor) [pid 3640] close(22) = -1 EBADF (Bad file descriptor) [pid 3640] close(23) = -1 EBADF (Bad file descriptor) [pid 3640] close(24) = -1 EBADF (Bad file descriptor) [pid 3640] close(25) = -1 EBADF (Bad file descriptor) [pid 3640] close(26) = -1 EBADF (Bad file descriptor) [pid 3640] close(27) = -1 EBADF (Bad file descriptor) [pid 3640] close(28) = -1 EBADF (Bad file descriptor) [pid 3640] close(29) = -1 EBADF (Bad file descriptor) [pid 3640] exit_group(0) = ? [pid 3640] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=38, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 3603] umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./36/binderfs") = 0 [pid 3603] umount2("./36/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./36/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./36/cgroup") = 0 [pid 3603] umount2("./36/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./36/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./36/cgroup.net") = 0 [pid 3603] umount2("./36/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./36/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./36/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./36") = 0 [pid 3603] mkdir("./37", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 39 ./strace-static-x86_64: Process 3641 attached [pid 3641] chdir("./37") = 0 [pid 3641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3641] setpgid(0, 0) = 0 [pid 3641] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3641] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3641] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3641] write(3, "1000", 4) = 4 [pid 3641] close(3) = 0 [pid 3641] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3641] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3641] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3641] gettid() = 39 [pid 3641] process_vm_writev(39, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3641] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3641] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3641] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3641] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3641] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3641] close(3) = 0 [pid 3641] close(4) = 0 [pid 3641] close(5) = -1 EBADF (Bad file descriptor) [pid 3641] close(6) = -1 EBADF (Bad file descriptor) [pid 3641] close(7) = -1 EBADF (Bad file descriptor) [pid 3641] close(8) = -1 EBADF (Bad file descriptor) [pid 3641] close(9) = -1 EBADF (Bad file descriptor) [pid 3641] close(10) = -1 EBADF (Bad file descriptor) [pid 3641] close(11) = -1 EBADF (Bad file descriptor) [pid 3641] close(12) = -1 EBADF (Bad file descriptor) [pid 3641] close(13) = -1 EBADF (Bad file descriptor) [pid 3641] close(14) = -1 EBADF (Bad file descriptor) [pid 3641] close(15) = -1 EBADF (Bad file descriptor) [pid 3641] close(16) = -1 EBADF (Bad file descriptor) [pid 3641] close(17) = -1 EBADF (Bad file descriptor) [pid 3641] close(18) = -1 EBADF (Bad file descriptor) [pid 3641] close(19) = -1 EBADF (Bad file descriptor) [pid 3641] close(20) = -1 EBADF (Bad file descriptor) [pid 3641] close(21) = -1 EBADF (Bad file descriptor) [pid 3641] close(22) = -1 EBADF (Bad file descriptor) [pid 3641] close(23) = -1 EBADF (Bad file descriptor) [pid 3641] close(24) = -1 EBADF (Bad file descriptor) [pid 3641] close(25) = -1 EBADF (Bad file descriptor) [pid 3641] close(26) = -1 EBADF (Bad file descriptor) [pid 3641] close(27) = -1 EBADF (Bad file descriptor) [pid 3641] close(28) = -1 EBADF (Bad file descriptor) [pid 3641] close(29) = -1 EBADF (Bad file descriptor) [pid 3641] exit_group(0) = ? [pid 3641] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=39, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./37/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./37/binderfs") = 0 [pid 3603] umount2("./37/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./37/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./37/cgroup") = 0 [pid 3603] umount2("./37/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./37/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./37/cgroup.net") = 0 [pid 3603] umount2("./37/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./37/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./37/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./37") = 0 [pid 3603] mkdir("./38", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3642 attached , child_tidptr=0x5555567b05d0) = 40 [pid 3642] chdir("./38") = 0 [pid 3642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3642] setpgid(0, 0) = 0 [pid 3642] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3642] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3642] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3642] write(3, "1000", 4) = 4 [pid 3642] close(3) = 0 [pid 3642] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3642] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3642] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3642] gettid() = 40 [pid 3642] process_vm_writev(40, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3642] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3642] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3642] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3642] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3642] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3642] close(3) = 0 [pid 3642] close(4) = 0 [pid 3642] close(5) = -1 EBADF (Bad file descriptor) [pid 3642] close(6) = -1 EBADF (Bad file descriptor) [pid 3642] close(7) = -1 EBADF (Bad file descriptor) [pid 3642] close(8) = -1 EBADF (Bad file descriptor) [pid 3642] close(9) = -1 EBADF (Bad file descriptor) [pid 3642] close(10) = -1 EBADF (Bad file descriptor) [pid 3642] close(11) = -1 EBADF (Bad file descriptor) [pid 3642] close(12) = -1 EBADF (Bad file descriptor) [pid 3642] close(13) = -1 EBADF (Bad file descriptor) [pid 3642] close(14) = -1 EBADF (Bad file descriptor) [pid 3642] close(15) = -1 EBADF (Bad file descriptor) [pid 3642] close(16) = -1 EBADF (Bad file descriptor) [pid 3642] close(17) = -1 EBADF (Bad file descriptor) [pid 3642] close(18) = -1 EBADF (Bad file descriptor) [pid 3642] close(19) = -1 EBADF (Bad file descriptor) [pid 3642] close(20) = -1 EBADF (Bad file descriptor) [pid 3642] close(21) = -1 EBADF (Bad file descriptor) [pid 3642] close(22) = -1 EBADF (Bad file descriptor) [pid 3642] close(23) = -1 EBADF (Bad file descriptor) [pid 3642] close(24) = -1 EBADF (Bad file descriptor) [pid 3642] close(25) = -1 EBADF (Bad file descriptor) [pid 3642] close(26) = -1 EBADF (Bad file descriptor) [pid 3642] close(27) = -1 EBADF (Bad file descriptor) [pid 3642] close(28) = -1 EBADF (Bad file descriptor) [pid 3642] close(29) = -1 EBADF (Bad file descriptor) [pid 3642] exit_group(0) = ? [pid 3642] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=40, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./38/binderfs") = 0 [pid 3603] umount2("./38/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./38/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./38/cgroup") = 0 [pid 3603] umount2("./38/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./38/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./38/cgroup.net") = 0 [pid 3603] umount2("./38/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./38/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./38/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./38") = 0 [pid 3603] mkdir("./39", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3643 attached [pid 3643] chdir("./39" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 41 [pid 3643] <... chdir resumed>) = 0 [pid 3643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3643] setpgid(0, 0) = 0 [pid 3643] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3643] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3643] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3643] write(3, "1000", 4) = 4 [pid 3643] close(3) = 0 [pid 3643] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3643] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3643] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3643] gettid() = 41 [pid 3643] process_vm_writev(41, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3643] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3643] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3643] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3643] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3643] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3643] close(3) = 0 [pid 3643] close(4) = 0 [pid 3643] close(5) = -1 EBADF (Bad file descriptor) [pid 3643] close(6) = -1 EBADF (Bad file descriptor) [pid 3643] close(7) = -1 EBADF (Bad file descriptor) [pid 3643] close(8) = -1 EBADF (Bad file descriptor) [pid 3643] close(9) = -1 EBADF (Bad file descriptor) [pid 3643] close(10) = -1 EBADF (Bad file descriptor) [pid 3643] close(11) = -1 EBADF (Bad file descriptor) [pid 3643] close(12) = -1 EBADF (Bad file descriptor) [pid 3643] close(13) = -1 EBADF (Bad file descriptor) [pid 3643] close(14) = -1 EBADF (Bad file descriptor) [pid 3643] close(15) = -1 EBADF (Bad file descriptor) [pid 3643] close(16) = -1 EBADF (Bad file descriptor) [pid 3643] close(17) = -1 EBADF (Bad file descriptor) [pid 3643] close(18) = -1 EBADF (Bad file descriptor) [pid 3643] close(19) = -1 EBADF (Bad file descriptor) [pid 3643] close(20) = -1 EBADF (Bad file descriptor) [pid 3643] close(21) = -1 EBADF (Bad file descriptor) [pid 3643] close(22) = -1 EBADF (Bad file descriptor) [pid 3643] close(23) = -1 EBADF (Bad file descriptor) [pid 3643] close(24) = -1 EBADF (Bad file descriptor) [pid 3643] close(25) = -1 EBADF (Bad file descriptor) [pid 3643] close(26) = -1 EBADF (Bad file descriptor) [pid 3643] close(27) = -1 EBADF (Bad file descriptor) [pid 3643] close(28) = -1 EBADF (Bad file descriptor) [pid 3643] close(29) = -1 EBADF (Bad file descriptor) [pid 3643] exit_group(0) = ? [pid 3643] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=41, si_uid=0, si_status=0, si_utime=1, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./39/binderfs") = 0 [pid 3603] umount2("./39/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./39/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./39/cgroup") = 0 [pid 3603] umount2("./39/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./39/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./39/cgroup.net") = 0 [pid 3603] umount2("./39/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./39/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./39/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./39") = 0 [pid 3603] mkdir("./40", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3644 attached , child_tidptr=0x5555567b05d0) = 42 [pid 3644] chdir("./40") = 0 [pid 3644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3644] setpgid(0, 0) = 0 [pid 3644] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3644] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3644] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3644] write(3, "1000", 4) = 4 [pid 3644] close(3) = 0 [pid 3644] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3644] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3644] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3644] gettid() = 42 [pid 3644] process_vm_writev(42, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3644] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3644] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3644] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3644] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3644] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3644] close(3) = 0 [pid 3644] close(4) = 0 [pid 3644] close(5) = -1 EBADF (Bad file descriptor) [pid 3644] close(6) = -1 EBADF (Bad file descriptor) [pid 3644] close(7) = -1 EBADF (Bad file descriptor) [pid 3644] close(8) = -1 EBADF (Bad file descriptor) [pid 3644] close(9) = -1 EBADF (Bad file descriptor) [pid 3644] close(10) = -1 EBADF (Bad file descriptor) [pid 3644] close(11) = -1 EBADF (Bad file descriptor) [pid 3644] close(12) = -1 EBADF (Bad file descriptor) [pid 3644] close(13) = -1 EBADF (Bad file descriptor) [pid 3644] close(14) = -1 EBADF (Bad file descriptor) [pid 3644] close(15) = -1 EBADF (Bad file descriptor) [pid 3644] close(16) = -1 EBADF (Bad file descriptor) [pid 3644] close(17) = -1 EBADF (Bad file descriptor) [pid 3644] close(18) = -1 EBADF (Bad file descriptor) [pid 3644] close(19) = -1 EBADF (Bad file descriptor) [pid 3644] close(20) = -1 EBADF (Bad file descriptor) [pid 3644] close(21) = -1 EBADF (Bad file descriptor) [pid 3644] close(22) = -1 EBADF (Bad file descriptor) [pid 3644] close(23) = -1 EBADF (Bad file descriptor) [pid 3644] close(24) = -1 EBADF (Bad file descriptor) [pid 3644] close(25) = -1 EBADF (Bad file descriptor) [pid 3644] close(26) = -1 EBADF (Bad file descriptor) [pid 3644] close(27) = -1 EBADF (Bad file descriptor) [pid 3644] close(28) = -1 EBADF (Bad file descriptor) [pid 3644] close(29) = -1 EBADF (Bad file descriptor) [pid 3644] exit_group(0) = ? [pid 3644] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=42, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./40/binderfs") = 0 [pid 3603] umount2("./40/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./40/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./40/cgroup") = 0 [pid 3603] umount2("./40/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./40/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./40/cgroup.net") = 0 [pid 3603] umount2("./40/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./40/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./40/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./40") = 0 [pid 3603] mkdir("./41", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 43 ./strace-static-x86_64: Process 3645 attached [pid 3645] chdir("./41") = 0 [pid 3645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3645] setpgid(0, 0) = 0 [pid 3645] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3645] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3645] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3645] write(3, "1000", 4) = 4 [pid 3645] close(3) = 0 [pid 3645] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3645] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3645] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3645] gettid() = 43 [pid 3645] process_vm_writev(43, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3645] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3645] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3645] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3645] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3645] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3645] close(3) = 0 [pid 3645] close(4) = 0 [pid 3645] close(5) = -1 EBADF (Bad file descriptor) [pid 3645] close(6) = -1 EBADF (Bad file descriptor) [pid 3645] close(7) = -1 EBADF (Bad file descriptor) [pid 3645] close(8) = -1 EBADF (Bad file descriptor) [pid 3645] close(9) = -1 EBADF (Bad file descriptor) [pid 3645] close(10) = -1 EBADF (Bad file descriptor) [pid 3645] close(11) = -1 EBADF (Bad file descriptor) [pid 3645] close(12) = -1 EBADF (Bad file descriptor) [pid 3645] close(13) = -1 EBADF (Bad file descriptor) [pid 3645] close(14) = -1 EBADF (Bad file descriptor) [pid 3645] close(15) = -1 EBADF (Bad file descriptor) [pid 3645] close(16) = -1 EBADF (Bad file descriptor) [pid 3645] close(17) = -1 EBADF (Bad file descriptor) [pid 3645] close(18) = -1 EBADF (Bad file descriptor) [pid 3645] close(19) = -1 EBADF (Bad file descriptor) [pid 3645] close(20) = -1 EBADF (Bad file descriptor) [pid 3645] close(21) = -1 EBADF (Bad file descriptor) [pid 3645] close(22) = -1 EBADF (Bad file descriptor) [pid 3645] close(23) = -1 EBADF (Bad file descriptor) [pid 3645] close(24) = -1 EBADF (Bad file descriptor) [pid 3645] close(25) = -1 EBADF (Bad file descriptor) [pid 3645] close(26) = -1 EBADF (Bad file descriptor) [pid 3645] close(27) = -1 EBADF (Bad file descriptor) [pid 3645] close(28) = -1 EBADF (Bad file descriptor) [pid 3645] close(29) = -1 EBADF (Bad file descriptor) [pid 3645] exit_group(0) = ? [pid 3645] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=43, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./41/binderfs") = 0 [pid 3603] umount2("./41/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./41/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./41/cgroup") = 0 [pid 3603] umount2("./41/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./41/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./41/cgroup.net") = 0 [pid 3603] umount2("./41/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./41/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./41/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./41") = 0 [pid 3603] mkdir("./42", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3646 attached , child_tidptr=0x5555567b05d0) = 44 [pid 3646] chdir("./42") = 0 [pid 3646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3646] setpgid(0, 0) = 0 [pid 3646] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3646] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3646] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3646] write(3, "1000", 4) = 4 [pid 3646] close(3) = 0 [pid 3646] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3646] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3646] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3646] gettid() = 44 [pid 3646] process_vm_writev(44, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3646] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3646] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3646] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3646] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3646] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3646] close(3) = 0 [pid 3646] close(4) = 0 [pid 3646] close(5) = -1 EBADF (Bad file descriptor) [pid 3646] close(6) = -1 EBADF (Bad file descriptor) [pid 3646] close(7) = -1 EBADF (Bad file descriptor) [pid 3646] close(8) = -1 EBADF (Bad file descriptor) [pid 3646] close(9) = -1 EBADF (Bad file descriptor) [pid 3646] close(10) = -1 EBADF (Bad file descriptor) [pid 3646] close(11) = -1 EBADF (Bad file descriptor) [pid 3646] close(12) = -1 EBADF (Bad file descriptor) [pid 3646] close(13) = -1 EBADF (Bad file descriptor) [pid 3646] close(14) = -1 EBADF (Bad file descriptor) [pid 3646] close(15) = -1 EBADF (Bad file descriptor) [pid 3646] close(16) = -1 EBADF (Bad file descriptor) [pid 3646] close(17) = -1 EBADF (Bad file descriptor) [pid 3646] close(18) = -1 EBADF (Bad file descriptor) [pid 3646] close(19) = -1 EBADF (Bad file descriptor) [pid 3646] close(20) = -1 EBADF (Bad file descriptor) [pid 3646] close(21) = -1 EBADF (Bad file descriptor) [pid 3646] close(22) = -1 EBADF (Bad file descriptor) [pid 3646] close(23) = -1 EBADF (Bad file descriptor) [pid 3646] close(24) = -1 EBADF (Bad file descriptor) [pid 3646] close(25) = -1 EBADF (Bad file descriptor) [pid 3646] close(26) = -1 EBADF (Bad file descriptor) [pid 3646] close(27) = -1 EBADF (Bad file descriptor) [pid 3646] close(28) = -1 EBADF (Bad file descriptor) [pid 3646] close(29) = -1 EBADF (Bad file descriptor) [pid 3646] exit_group(0) = ? [pid 3646] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=44, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./42/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./42/binderfs") = 0 [pid 3603] umount2("./42/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./42/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./42/cgroup") = 0 [pid 3603] umount2("./42/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./42/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./42/cgroup.net") = 0 [pid 3603] umount2("./42/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./42/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./42/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./42") = 0 [pid 3603] mkdir("./43", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3647 attached [pid 3647] chdir("./43") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 45 [pid 3647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3647] setpgid(0, 0) = 0 [pid 3647] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3647] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3647] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3647] write(3, "1000", 4) = 4 [pid 3647] close(3) = 0 [pid 3647] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3647] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3647] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3647] gettid() = 45 [pid 3647] process_vm_writev(45, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3647] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3647] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3647] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3647] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3647] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3647] close(3) = 0 [pid 3647] close(4) = 0 [pid 3647] close(5) = -1 EBADF (Bad file descriptor) [pid 3647] close(6) = -1 EBADF (Bad file descriptor) [pid 3647] close(7) = -1 EBADF (Bad file descriptor) [pid 3647] close(8) = -1 EBADF (Bad file descriptor) [pid 3647] close(9) = -1 EBADF (Bad file descriptor) [pid 3647] close(10) = -1 EBADF (Bad file descriptor) [pid 3647] close(11) = -1 EBADF (Bad file descriptor) [pid 3647] close(12) = -1 EBADF (Bad file descriptor) [pid 3647] close(13) = -1 EBADF (Bad file descriptor) [pid 3647] close(14) = -1 EBADF (Bad file descriptor) [pid 3647] close(15) = -1 EBADF (Bad file descriptor) [pid 3647] close(16) = -1 EBADF (Bad file descriptor) [pid 3647] close(17) = -1 EBADF (Bad file descriptor) [pid 3647] close(18) = -1 EBADF (Bad file descriptor) [pid 3647] close(19) = -1 EBADF (Bad file descriptor) [pid 3647] close(20) = -1 EBADF (Bad file descriptor) [pid 3647] close(21) = -1 EBADF (Bad file descriptor) [pid 3647] close(22) = -1 EBADF (Bad file descriptor) [pid 3647] close(23) = -1 EBADF (Bad file descriptor) [pid 3647] close(24) = -1 EBADF (Bad file descriptor) [pid 3647] close(25) = -1 EBADF (Bad file descriptor) [pid 3647] close(26) = -1 EBADF (Bad file descriptor) [pid 3647] close(27) = -1 EBADF (Bad file descriptor) [pid 3647] close(28) = -1 EBADF (Bad file descriptor) [pid 3647] close(29) = -1 EBADF (Bad file descriptor) [pid 3647] exit_group(0) = ? [pid 3647] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=45, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./43/binderfs") = 0 [pid 3603] umount2("./43/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./43/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./43/cgroup") = 0 [pid 3603] umount2("./43/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./43/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./43/cgroup.net") = 0 [pid 3603] umount2("./43/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./43/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./43/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./43") = 0 [pid 3603] mkdir("./44", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3648 attached , child_tidptr=0x5555567b05d0) = 46 [pid 3648] chdir("./44") = 0 [pid 3648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3648] setpgid(0, 0) = 0 [pid 3648] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3648] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3648] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3648] write(3, "1000", 4) = 4 [pid 3648] close(3) = 0 [pid 3648] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3648] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3648] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3648] gettid() = 46 [pid 3648] process_vm_writev(46, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3648] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3648] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3648] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3648] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3648] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3648] close(3) = 0 [pid 3648] close(4) = 0 [pid 3648] close(5) = -1 EBADF (Bad file descriptor) [pid 3648] close(6) = -1 EBADF (Bad file descriptor) [pid 3648] close(7) = -1 EBADF (Bad file descriptor) [pid 3648] close(8) = -1 EBADF (Bad file descriptor) [pid 3648] close(9) = -1 EBADF (Bad file descriptor) [pid 3648] close(10) = -1 EBADF (Bad file descriptor) [pid 3648] close(11) = -1 EBADF (Bad file descriptor) [pid 3648] close(12) = -1 EBADF (Bad file descriptor) [pid 3648] close(13) = -1 EBADF (Bad file descriptor) [pid 3648] close(14) = -1 EBADF (Bad file descriptor) [pid 3648] close(15) = -1 EBADF (Bad file descriptor) [pid 3648] close(16) = -1 EBADF (Bad file descriptor) [pid 3648] close(17) = -1 EBADF (Bad file descriptor) [pid 3648] close(18) = -1 EBADF (Bad file descriptor) [pid 3648] close(19) = -1 EBADF (Bad file descriptor) [pid 3648] close(20) = -1 EBADF (Bad file descriptor) [pid 3648] close(21) = -1 EBADF (Bad file descriptor) [pid 3648] close(22) = -1 EBADF (Bad file descriptor) [pid 3648] close(23) = -1 EBADF (Bad file descriptor) [pid 3648] close(24) = -1 EBADF (Bad file descriptor) [pid 3648] close(25) = -1 EBADF (Bad file descriptor) [pid 3648] close(26) = -1 EBADF (Bad file descriptor) [pid 3648] close(27) = -1 EBADF (Bad file descriptor) [pid 3648] close(28) = -1 EBADF (Bad file descriptor) [pid 3648] close(29) = -1 EBADF (Bad file descriptor) [pid 3648] exit_group(0) = ? [pid 3648] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=46, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./44/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./44/binderfs") = 0 [pid 3603] umount2("./44/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./44/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./44/cgroup") = 0 [pid 3603] umount2("./44/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./44/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./44/cgroup.net") = 0 [pid 3603] umount2("./44/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./44/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./44/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./44") = 0 [pid 3603] mkdir("./45", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3649 attached , child_tidptr=0x5555567b05d0) = 47 [pid 3649] chdir("./45") = 0 [pid 3649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3649] setpgid(0, 0) = 0 [pid 3649] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3649] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3649] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3649] write(3, "1000", 4) = 4 [pid 3649] close(3) = 0 [pid 3649] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3649] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3649] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3649] gettid() = 47 [pid 3649] process_vm_writev(47, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3649] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3649] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3649] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3649] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3649] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3649] close(3) = 0 [pid 3649] close(4) = 0 [pid 3649] close(5) = -1 EBADF (Bad file descriptor) [pid 3649] close(6) = -1 EBADF (Bad file descriptor) [pid 3649] close(7) = -1 EBADF (Bad file descriptor) [pid 3649] close(8) = -1 EBADF (Bad file descriptor) [pid 3649] close(9) = -1 EBADF (Bad file descriptor) [pid 3649] close(10) = -1 EBADF (Bad file descriptor) [pid 3649] close(11) = -1 EBADF (Bad file descriptor) [pid 3649] close(12) = -1 EBADF (Bad file descriptor) [pid 3649] close(13) = -1 EBADF (Bad file descriptor) [pid 3649] close(14) = -1 EBADF (Bad file descriptor) [pid 3649] close(15) = -1 EBADF (Bad file descriptor) [pid 3649] close(16) = -1 EBADF (Bad file descriptor) [pid 3649] close(17) = -1 EBADF (Bad file descriptor) [pid 3649] close(18) = -1 EBADF (Bad file descriptor) [pid 3649] close(19) = -1 EBADF (Bad file descriptor) [pid 3649] close(20) = -1 EBADF (Bad file descriptor) [pid 3649] close(21) = -1 EBADF (Bad file descriptor) [pid 3649] close(22) = -1 EBADF (Bad file descriptor) [pid 3649] close(23) = -1 EBADF (Bad file descriptor) [pid 3649] close(24) = -1 EBADF (Bad file descriptor) [pid 3649] close(25) = -1 EBADF (Bad file descriptor) [pid 3649] close(26) = -1 EBADF (Bad file descriptor) [pid 3649] close(27) = -1 EBADF (Bad file descriptor) [pid 3649] close(28) = -1 EBADF (Bad file descriptor) [pid 3649] close(29) = -1 EBADF (Bad file descriptor) [pid 3649] exit_group(0) = ? [pid 3649] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=47, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./45/binderfs") = 0 [pid 3603] umount2("./45/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./45/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./45/cgroup") = 0 [pid 3603] umount2("./45/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./45/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./45/cgroup.net") = 0 [pid 3603] umount2("./45/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./45/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./45/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./45") = 0 [pid 3603] mkdir("./46", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3650 attached , child_tidptr=0x5555567b05d0) = 48 [pid 3650] chdir("./46") = 0 [pid 3650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3650] setpgid(0, 0) = 0 [pid 3650] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3650] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3650] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3650] write(3, "1000", 4) = 4 [pid 3650] close(3) = 0 [pid 3650] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3650] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3650] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3650] gettid() = 48 [pid 3650] process_vm_writev(48, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3650] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3650] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3650] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3650] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3650] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3650] close(3) = 0 [pid 3650] close(4) = 0 [pid 3650] close(5) = -1 EBADF (Bad file descriptor) [pid 3650] close(6) = -1 EBADF (Bad file descriptor) [pid 3650] close(7) = -1 EBADF (Bad file descriptor) [pid 3650] close(8) = -1 EBADF (Bad file descriptor) [pid 3650] close(9) = -1 EBADF (Bad file descriptor) [pid 3650] close(10) = -1 EBADF (Bad file descriptor) [pid 3650] close(11) = -1 EBADF (Bad file descriptor) [pid 3650] close(12) = -1 EBADF (Bad file descriptor) [pid 3650] close(13) = -1 EBADF (Bad file descriptor) [pid 3650] close(14) = -1 EBADF (Bad file descriptor) [pid 3650] close(15) = -1 EBADF (Bad file descriptor) [pid 3650] close(16) = -1 EBADF (Bad file descriptor) [pid 3650] close(17) = -1 EBADF (Bad file descriptor) [pid 3650] close(18) = -1 EBADF (Bad file descriptor) [pid 3650] close(19) = -1 EBADF (Bad file descriptor) [pid 3650] close(20) = -1 EBADF (Bad file descriptor) [pid 3650] close(21) = -1 EBADF (Bad file descriptor) [pid 3650] close(22) = -1 EBADF (Bad file descriptor) [pid 3650] close(23) = -1 EBADF (Bad file descriptor) [pid 3650] close(24) = -1 EBADF (Bad file descriptor) [pid 3650] close(25) = -1 EBADF (Bad file descriptor) [pid 3650] close(26) = -1 EBADF (Bad file descriptor) [pid 3650] close(27) = -1 EBADF (Bad file descriptor) [pid 3650] close(28) = -1 EBADF (Bad file descriptor) [pid 3650] close(29) = -1 EBADF (Bad file descriptor) [pid 3650] exit_group(0) = ? [pid 3650] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=48, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./46/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./46/binderfs") = 0 [pid 3603] umount2("./46/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./46/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./46/cgroup") = 0 [pid 3603] umount2("./46/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./46/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./46/cgroup.net") = 0 [pid 3603] umount2("./46/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./46/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./46/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./46") = 0 [pid 3603] mkdir("./47", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3651 attached , child_tidptr=0x5555567b05d0) = 49 [pid 3651] chdir("./47") = 0 [pid 3651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3651] setpgid(0, 0) = 0 [pid 3651] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3651] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3651] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3651] write(3, "1000", 4) = 4 [pid 3651] close(3) = 0 [pid 3651] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3651] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3651] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3651] gettid() = 49 [pid 3651] process_vm_writev(49, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3651] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3651] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3651] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3651] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3651] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3651] close(3) = 0 [pid 3651] close(4) = 0 [pid 3651] close(5) = -1 EBADF (Bad file descriptor) [pid 3651] close(6) = -1 EBADF (Bad file descriptor) [pid 3651] close(7) = -1 EBADF (Bad file descriptor) [pid 3651] close(8) = -1 EBADF (Bad file descriptor) [pid 3651] close(9) = -1 EBADF (Bad file descriptor) [pid 3651] close(10) = -1 EBADF (Bad file descriptor) [pid 3651] close(11) = -1 EBADF (Bad file descriptor) [pid 3651] close(12) = -1 EBADF (Bad file descriptor) [pid 3651] close(13) = -1 EBADF (Bad file descriptor) [pid 3651] close(14) = -1 EBADF (Bad file descriptor) [pid 3651] close(15) = -1 EBADF (Bad file descriptor) [pid 3651] close(16) = -1 EBADF (Bad file descriptor) [pid 3651] close(17) = -1 EBADF (Bad file descriptor) [pid 3651] close(18) = -1 EBADF (Bad file descriptor) [pid 3651] close(19) = -1 EBADF (Bad file descriptor) [pid 3651] close(20) = -1 EBADF (Bad file descriptor) [pid 3651] close(21) = -1 EBADF (Bad file descriptor) [pid 3651] close(22) = -1 EBADF (Bad file descriptor) [pid 3651] close(23) = -1 EBADF (Bad file descriptor) [pid 3651] close(24) = -1 EBADF (Bad file descriptor) [pid 3651] close(25) = -1 EBADF (Bad file descriptor) [pid 3651] close(26) = -1 EBADF (Bad file descriptor) [pid 3651] close(27) = -1 EBADF (Bad file descriptor) [pid 3651] close(28) = -1 EBADF (Bad file descriptor) [pid 3651] close(29) = -1 EBADF (Bad file descriptor) [pid 3651] exit_group(0) = ? [pid 3651] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=49, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./47/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./47/binderfs") = 0 [pid 3603] umount2("./47/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./47/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./47/cgroup") = 0 [pid 3603] umount2("./47/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./47/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./47/cgroup.net") = 0 [pid 3603] umount2("./47/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./47/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./47/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./47") = 0 [pid 3603] mkdir("./48", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3652 attached , child_tidptr=0x5555567b05d0) = 50 [pid 3652] chdir("./48") = 0 [pid 3652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3652] setpgid(0, 0) = 0 [pid 3652] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3652] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3652] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3652] write(3, "1000", 4) = 4 [pid 3652] close(3) = 0 [pid 3652] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3652] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3652] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3652] gettid() = 50 [pid 3652] process_vm_writev(50, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3652] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3652] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3652] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3652] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3652] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3652] close(3) = 0 [pid 3652] close(4) = 0 [pid 3652] close(5) = -1 EBADF (Bad file descriptor) [pid 3652] close(6) = -1 EBADF (Bad file descriptor) [pid 3652] close(7) = -1 EBADF (Bad file descriptor) [pid 3652] close(8) = -1 EBADF (Bad file descriptor) [pid 3652] close(9) = -1 EBADF (Bad file descriptor) [pid 3652] close(10) = -1 EBADF (Bad file descriptor) [pid 3652] close(11) = -1 EBADF (Bad file descriptor) [pid 3652] close(12) = -1 EBADF (Bad file descriptor) [pid 3652] close(13) = -1 EBADF (Bad file descriptor) [pid 3652] close(14) = -1 EBADF (Bad file descriptor) [pid 3652] close(15) = -1 EBADF (Bad file descriptor) [pid 3652] close(16) = -1 EBADF (Bad file descriptor) [pid 3652] close(17) = -1 EBADF (Bad file descriptor) [pid 3652] close(18) = -1 EBADF (Bad file descriptor) [pid 3652] close(19) = -1 EBADF (Bad file descriptor) [pid 3652] close(20) = -1 EBADF (Bad file descriptor) [pid 3652] close(21) = -1 EBADF (Bad file descriptor) [pid 3652] close(22) = -1 EBADF (Bad file descriptor) [pid 3652] close(23) = -1 EBADF (Bad file descriptor) [pid 3652] close(24) = -1 EBADF (Bad file descriptor) [pid 3652] close(25) = -1 EBADF (Bad file descriptor) [pid 3652] close(26) = -1 EBADF (Bad file descriptor) [pid 3652] close(27) = -1 EBADF (Bad file descriptor) [pid 3652] close(28) = -1 EBADF (Bad file descriptor) [pid 3652] close(29) = -1 EBADF (Bad file descriptor) [pid 3652] exit_group(0) = ? [pid 3652] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=50, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./48/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./48/binderfs") = 0 [pid 3603] umount2("./48/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./48/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./48/cgroup") = 0 [pid 3603] umount2("./48/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./48/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./48/cgroup.net") = 0 [pid 3603] umount2("./48/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./48/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./48/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./48") = 0 [pid 3603] mkdir("./49", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3653 attached , child_tidptr=0x5555567b05d0) = 51 [pid 3653] chdir("./49") = 0 [pid 3653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3653] setpgid(0, 0) = 0 [pid 3653] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3653] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3653] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3653] write(3, "1000", 4) = 4 [pid 3653] close(3) = 0 [pid 3653] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3653] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3653] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3653] gettid() = 51 [pid 3653] process_vm_writev(51, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3653] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3653] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3653] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3653] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3653] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3653] close(3) = 0 [pid 3653] close(4) = 0 [pid 3653] close(5) = -1 EBADF (Bad file descriptor) [pid 3653] close(6) = -1 EBADF (Bad file descriptor) [pid 3653] close(7) = -1 EBADF (Bad file descriptor) [pid 3653] close(8) = -1 EBADF (Bad file descriptor) [pid 3653] close(9) = -1 EBADF (Bad file descriptor) [pid 3653] close(10) = -1 EBADF (Bad file descriptor) [pid 3653] close(11) = -1 EBADF (Bad file descriptor) [pid 3653] close(12) = -1 EBADF (Bad file descriptor) [pid 3653] close(13) = -1 EBADF (Bad file descriptor) [pid 3653] close(14) = -1 EBADF (Bad file descriptor) [pid 3653] close(15) = -1 EBADF (Bad file descriptor) [pid 3653] close(16) = -1 EBADF (Bad file descriptor) [pid 3653] close(17) = -1 EBADF (Bad file descriptor) [pid 3653] close(18) = -1 EBADF (Bad file descriptor) [pid 3653] close(19) = -1 EBADF (Bad file descriptor) [pid 3653] close(20) = -1 EBADF (Bad file descriptor) [pid 3653] close(21) = -1 EBADF (Bad file descriptor) [pid 3653] close(22) = -1 EBADF (Bad file descriptor) [pid 3653] close(23) = -1 EBADF (Bad file descriptor) [pid 3653] close(24) = -1 EBADF (Bad file descriptor) [pid 3653] close(25) = -1 EBADF (Bad file descriptor) [pid 3653] close(26) = -1 EBADF (Bad file descriptor) [pid 3653] close(27) = -1 EBADF (Bad file descriptor) [pid 3653] close(28) = -1 EBADF (Bad file descriptor) [pid 3653] close(29) = -1 EBADF (Bad file descriptor) [pid 3653] exit_group(0) = ? [pid 3653] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=51, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./49/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./49/binderfs") = 0 [pid 3603] umount2("./49/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./49/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./49/cgroup") = 0 [pid 3603] umount2("./49/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./49/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./49/cgroup.net") = 0 [pid 3603] umount2("./49/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./49/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./49/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./49") = 0 [pid 3603] mkdir("./50", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3654 attached , child_tidptr=0x5555567b05d0) = 52 [pid 3654] chdir("./50") = 0 [pid 3654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3654] setpgid(0, 0) = 0 [pid 3654] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3654] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3654] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3654] write(3, "1000", 4) = 4 [pid 3654] close(3) = 0 [pid 3654] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3654] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3654] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3654] gettid() = 52 [pid 3654] process_vm_writev(52, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3654] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3654] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3654] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3654] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3654] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3654] close(3) = 0 [pid 3654] close(4) = 0 [pid 3654] close(5) = -1 EBADF (Bad file descriptor) [pid 3654] close(6) = -1 EBADF (Bad file descriptor) [pid 3654] close(7) = -1 EBADF (Bad file descriptor) [pid 3654] close(8) = -1 EBADF (Bad file descriptor) [pid 3654] close(9) = -1 EBADF (Bad file descriptor) [pid 3654] close(10) = -1 EBADF (Bad file descriptor) [pid 3654] close(11) = -1 EBADF (Bad file descriptor) [pid 3654] close(12) = -1 EBADF (Bad file descriptor) [pid 3654] close(13) = -1 EBADF (Bad file descriptor) [pid 3654] close(14) = -1 EBADF (Bad file descriptor) [pid 3654] close(15) = -1 EBADF (Bad file descriptor) [pid 3654] close(16) = -1 EBADF (Bad file descriptor) [pid 3654] close(17) = -1 EBADF (Bad file descriptor) [pid 3654] close(18) = -1 EBADF (Bad file descriptor) [pid 3654] close(19) = -1 EBADF (Bad file descriptor) [pid 3654] close(20) = -1 EBADF (Bad file descriptor) [pid 3654] close(21) = -1 EBADF (Bad file descriptor) [pid 3654] close(22) = -1 EBADF (Bad file descriptor) [pid 3654] close(23) = -1 EBADF (Bad file descriptor) [pid 3654] close(24) = -1 EBADF (Bad file descriptor) [pid 3654] close(25) = -1 EBADF (Bad file descriptor) [pid 3654] close(26) = -1 EBADF (Bad file descriptor) [pid 3654] close(27) = -1 EBADF (Bad file descriptor) [pid 3654] close(28) = -1 EBADF (Bad file descriptor) [pid 3654] close(29) = -1 EBADF (Bad file descriptor) [pid 3654] exit_group(0) = ? [pid 3654] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=52, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3603] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./50/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./50/binderfs") = 0 [pid 3603] umount2("./50/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./50/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./50/cgroup") = 0 [pid 3603] umount2("./50/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./50/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./50/cgroup.net") = 0 [pid 3603] umount2("./50/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./50/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./50/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./50") = 0 [pid 3603] mkdir("./51", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3655 attached [pid 3655] chdir("./51") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 53 [pid 3655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3655] setpgid(0, 0) = 0 [pid 3655] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3655] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3655] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3655] write(3, "1000", 4) = 4 [pid 3655] close(3) = 0 [pid 3655] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3655] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3655] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3655] gettid() = 53 [pid 3655] process_vm_writev(53, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3655] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3655] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3655] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3655] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3655] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3655] close(3) = 0 [pid 3655] close(4) = 0 [pid 3655] close(5) = -1 EBADF (Bad file descriptor) [pid 3655] close(6) = -1 EBADF (Bad file descriptor) [pid 3655] close(7) = -1 EBADF (Bad file descriptor) [pid 3655] close(8) = -1 EBADF (Bad file descriptor) [pid 3655] close(9) = -1 EBADF (Bad file descriptor) [pid 3655] close(10) = -1 EBADF (Bad file descriptor) [pid 3655] close(11) = -1 EBADF (Bad file descriptor) [pid 3655] close(12) = -1 EBADF (Bad file descriptor) [pid 3655] close(13) = -1 EBADF (Bad file descriptor) [pid 3655] close(14) = -1 EBADF (Bad file descriptor) [pid 3655] close(15) = -1 EBADF (Bad file descriptor) [pid 3655] close(16) = -1 EBADF (Bad file descriptor) [pid 3655] close(17) = -1 EBADF (Bad file descriptor) [pid 3655] close(18) = -1 EBADF (Bad file descriptor) [pid 3655] close(19) = -1 EBADF (Bad file descriptor) [pid 3655] close(20) = -1 EBADF (Bad file descriptor) [pid 3655] close(21) = -1 EBADF (Bad file descriptor) [pid 3655] close(22) = -1 EBADF (Bad file descriptor) [pid 3655] close(23) = -1 EBADF (Bad file descriptor) [pid 3655] close(24) = -1 EBADF (Bad file descriptor) [pid 3655] close(25) = -1 EBADF (Bad file descriptor) [pid 3655] close(26) = -1 EBADF (Bad file descriptor) [pid 3655] close(27) = -1 EBADF (Bad file descriptor) [pid 3655] close(28) = -1 EBADF (Bad file descriptor) [pid 3655] close(29) = -1 EBADF (Bad file descriptor) [pid 3655] exit_group(0) = ? [pid 3655] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=53, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./51/binderfs") = 0 [pid 3603] umount2("./51/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./51/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./51/cgroup") = 0 [pid 3603] umount2("./51/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./51/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./51/cgroup.net") = 0 [pid 3603] umount2("./51/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./51/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./51/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./51") = 0 [pid 3603] mkdir("./52", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3656 attached , child_tidptr=0x5555567b05d0) = 54 [pid 3656] chdir("./52") = 0 [pid 3656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3656] setpgid(0, 0) = 0 [pid 3656] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3656] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3656] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3656] write(3, "1000", 4) = 4 [pid 3656] close(3) = 0 [pid 3656] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3656] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3656] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3656] gettid() = 54 [pid 3656] process_vm_writev(54, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3656] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3656] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3656] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3656] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3656] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3656] close(3) = 0 [pid 3656] close(4) = 0 [pid 3656] close(5) = -1 EBADF (Bad file descriptor) [pid 3656] close(6) = -1 EBADF (Bad file descriptor) [pid 3656] close(7) = -1 EBADF (Bad file descriptor) [pid 3656] close(8) = -1 EBADF (Bad file descriptor) [pid 3656] close(9) = -1 EBADF (Bad file descriptor) [pid 3656] close(10) = -1 EBADF (Bad file descriptor) [pid 3656] close(11) = -1 EBADF (Bad file descriptor) [pid 3656] close(12) = -1 EBADF (Bad file descriptor) [pid 3656] close(13) = -1 EBADF (Bad file descriptor) [pid 3656] close(14) = -1 EBADF (Bad file descriptor) [pid 3656] close(15) = -1 EBADF (Bad file descriptor) [pid 3656] close(16) = -1 EBADF (Bad file descriptor) [pid 3656] close(17) = -1 EBADF (Bad file descriptor) [pid 3656] close(18) = -1 EBADF (Bad file descriptor) [pid 3656] close(19) = -1 EBADF (Bad file descriptor) [pid 3656] close(20) = -1 EBADF (Bad file descriptor) [pid 3656] close(21) = -1 EBADF (Bad file descriptor) [pid 3656] close(22) = -1 EBADF (Bad file descriptor) [pid 3656] close(23) = -1 EBADF (Bad file descriptor) [pid 3656] close(24) = -1 EBADF (Bad file descriptor) [pid 3656] close(25) = -1 EBADF (Bad file descriptor) [pid 3656] close(26) = -1 EBADF (Bad file descriptor) [pid 3656] close(27) = -1 EBADF (Bad file descriptor) [pid 3656] close(28) = -1 EBADF (Bad file descriptor) [pid 3656] close(29) = -1 EBADF (Bad file descriptor) [pid 3656] exit_group(0) = ? [pid 3656] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=54, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./52/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./52/binderfs") = 0 [pid 3603] umount2("./52/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./52/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./52/cgroup") = 0 [pid 3603] umount2("./52/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./52/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./52/cgroup.net") = 0 [pid 3603] umount2("./52/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./52/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./52/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./52") = 0 [pid 3603] mkdir("./53", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3657 attached , child_tidptr=0x5555567b05d0) = 55 [pid 3657] chdir("./53") = 0 [pid 3657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3657] setpgid(0, 0) = 0 [pid 3657] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3657] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3657] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3657] write(3, "1000", 4) = 4 [pid 3657] close(3) = 0 [pid 3657] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3657] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3657] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3657] gettid() = 55 [pid 3657] process_vm_writev(55, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3657] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3657] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3657] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3657] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3657] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3657] close(3) = 0 [pid 3657] close(4) = 0 [pid 3657] close(5) = -1 EBADF (Bad file descriptor) [pid 3657] close(6) = -1 EBADF (Bad file descriptor) [pid 3657] close(7) = -1 EBADF (Bad file descriptor) [pid 3657] close(8) = -1 EBADF (Bad file descriptor) [pid 3657] close(9) = -1 EBADF (Bad file descriptor) [pid 3657] close(10) = -1 EBADF (Bad file descriptor) [pid 3657] close(11) = -1 EBADF (Bad file descriptor) [pid 3657] close(12) = -1 EBADF (Bad file descriptor) [pid 3657] close(13) = -1 EBADF (Bad file descriptor) [pid 3657] close(14) = -1 EBADF (Bad file descriptor) [pid 3657] close(15) = -1 EBADF (Bad file descriptor) [pid 3657] close(16) = -1 EBADF (Bad file descriptor) [pid 3657] close(17) = -1 EBADF (Bad file descriptor) [pid 3657] close(18) = -1 EBADF (Bad file descriptor) [pid 3657] close(19) = -1 EBADF (Bad file descriptor) [pid 3657] close(20) = -1 EBADF (Bad file descriptor) [pid 3657] close(21) = -1 EBADF (Bad file descriptor) [pid 3657] close(22) = -1 EBADF (Bad file descriptor) [pid 3657] close(23) = -1 EBADF (Bad file descriptor) [pid 3657] close(24) = -1 EBADF (Bad file descriptor) [pid 3657] close(25) = -1 EBADF (Bad file descriptor) [pid 3657] close(26) = -1 EBADF (Bad file descriptor) [pid 3657] close(27) = -1 EBADF (Bad file descriptor) [pid 3657] close(28) = -1 EBADF (Bad file descriptor) [pid 3657] close(29) = -1 EBADF (Bad file descriptor) [pid 3657] exit_group(0) = ? [pid 3657] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=55, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./53/binderfs") = 0 [pid 3603] umount2("./53/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./53/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./53/cgroup") = 0 [pid 3603] umount2("./53/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./53/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./53/cgroup.net") = 0 [pid 3603] umount2("./53/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./53/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./53/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./53") = 0 [pid 3603] mkdir("./54", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3658 attached , child_tidptr=0x5555567b05d0) = 56 [pid 3658] chdir("./54") = 0 [pid 3658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3658] setpgid(0, 0) = 0 [pid 3658] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3658] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3658] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3658] write(3, "1000", 4) = 4 [pid 3658] close(3) = 0 [pid 3658] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3658] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3658] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3658] gettid() = 56 [pid 3658] process_vm_writev(56, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3658] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3658] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3658] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3658] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3658] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3658] close(3) = 0 [pid 3658] close(4) = 0 [pid 3658] close(5) = -1 EBADF (Bad file descriptor) [pid 3658] close(6) = -1 EBADF (Bad file descriptor) [pid 3658] close(7) = -1 EBADF (Bad file descriptor) [pid 3658] close(8) = -1 EBADF (Bad file descriptor) [pid 3658] close(9) = -1 EBADF (Bad file descriptor) [pid 3658] close(10) = -1 EBADF (Bad file descriptor) [pid 3658] close(11) = -1 EBADF (Bad file descriptor) [pid 3658] close(12) = -1 EBADF (Bad file descriptor) [pid 3658] close(13) = -1 EBADF (Bad file descriptor) [pid 3658] close(14) = -1 EBADF (Bad file descriptor) [pid 3658] close(15) = -1 EBADF (Bad file descriptor) [pid 3658] close(16) = -1 EBADF (Bad file descriptor) [pid 3658] close(17) = -1 EBADF (Bad file descriptor) [pid 3658] close(18) = -1 EBADF (Bad file descriptor) [pid 3658] close(19) = -1 EBADF (Bad file descriptor) [pid 3658] close(20) = -1 EBADF (Bad file descriptor) [pid 3658] close(21) = -1 EBADF (Bad file descriptor) [pid 3658] close(22) = -1 EBADF (Bad file descriptor) [pid 3658] close(23) = -1 EBADF (Bad file descriptor) [pid 3658] close(24) = -1 EBADF (Bad file descriptor) [pid 3658] close(25) = -1 EBADF (Bad file descriptor) [pid 3658] close(26) = -1 EBADF (Bad file descriptor) [pid 3658] close(27) = -1 EBADF (Bad file descriptor) [pid 3658] close(28) = -1 EBADF (Bad file descriptor) [pid 3658] close(29) = -1 EBADF (Bad file descriptor) [pid 3658] exit_group(0) = ? [pid 3658] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=56, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./54/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./54/binderfs") = 0 [pid 3603] umount2("./54/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./54/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./54/cgroup") = 0 [pid 3603] umount2("./54/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./54/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./54/cgroup.net") = 0 [pid 3603] umount2("./54/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./54/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./54/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./54") = 0 [pid 3603] mkdir("./55", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3659 attached , child_tidptr=0x5555567b05d0) = 57 [pid 3659] chdir("./55") = 0 [pid 3659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3659] setpgid(0, 0) = 0 [pid 3659] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3659] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3659] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3659] write(3, "1000", 4) = 4 [pid 3659] close(3) = 0 [pid 3659] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3659] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3659] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3659] gettid() = 57 [pid 3659] process_vm_writev(57, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3659] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3659] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3659] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3659] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3659] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3659] close(3) = 0 [pid 3659] close(4) = 0 [pid 3659] close(5) = -1 EBADF (Bad file descriptor) [pid 3659] close(6) = -1 EBADF (Bad file descriptor) [pid 3659] close(7) = -1 EBADF (Bad file descriptor) [pid 3659] close(8) = -1 EBADF (Bad file descriptor) [pid 3659] close(9) = -1 EBADF (Bad file descriptor) [pid 3659] close(10) = -1 EBADF (Bad file descriptor) [pid 3659] close(11) = -1 EBADF (Bad file descriptor) [pid 3659] close(12) = -1 EBADF (Bad file descriptor) [pid 3659] close(13) = -1 EBADF (Bad file descriptor) [pid 3659] close(14) = -1 EBADF (Bad file descriptor) [pid 3659] close(15) = -1 EBADF (Bad file descriptor) [pid 3659] close(16) = -1 EBADF (Bad file descriptor) [pid 3659] close(17) = -1 EBADF (Bad file descriptor) [pid 3659] close(18) = -1 EBADF (Bad file descriptor) [pid 3659] close(19) = -1 EBADF (Bad file descriptor) [pid 3659] close(20) = -1 EBADF (Bad file descriptor) [pid 3659] close(21) = -1 EBADF (Bad file descriptor) [pid 3659] close(22) = -1 EBADF (Bad file descriptor) [pid 3659] close(23) = -1 EBADF (Bad file descriptor) [pid 3659] close(24) = -1 EBADF (Bad file descriptor) [pid 3659] close(25) = -1 EBADF (Bad file descriptor) [pid 3659] close(26) = -1 EBADF (Bad file descriptor) [pid 3659] close(27) = -1 EBADF (Bad file descriptor) [pid 3659] close(28) = -1 EBADF (Bad file descriptor) [pid 3659] close(29) = -1 EBADF (Bad file descriptor) [pid 3659] exit_group(0) = ? [pid 3659] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=57, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./55/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./55/binderfs") = 0 [pid 3603] umount2("./55/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./55/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./55/cgroup") = 0 [pid 3603] umount2("./55/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./55/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./55/cgroup.net") = 0 [pid 3603] umount2("./55/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./55/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./55/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./55") = 0 [pid 3603] mkdir("./56", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3660 attached , child_tidptr=0x5555567b05d0) = 58 [pid 3660] chdir("./56") = 0 [pid 3660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3660] setpgid(0, 0) = 0 [pid 3660] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3660] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3660] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3660] write(3, "1000", 4) = 4 [pid 3660] close(3) = 0 [pid 3660] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3660] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3660] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3660] gettid() = 58 [pid 3660] process_vm_writev(58, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3660] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3660] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3660] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3660] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3660] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3660] close(3) = 0 [pid 3660] close(4) = 0 [pid 3660] close(5) = -1 EBADF (Bad file descriptor) [pid 3660] close(6) = -1 EBADF (Bad file descriptor) [pid 3660] close(7) = -1 EBADF (Bad file descriptor) [pid 3660] close(8) = -1 EBADF (Bad file descriptor) [pid 3660] close(9) = -1 EBADF (Bad file descriptor) [pid 3660] close(10) = -1 EBADF (Bad file descriptor) [pid 3660] close(11) = -1 EBADF (Bad file descriptor) [pid 3660] close(12) = -1 EBADF (Bad file descriptor) [pid 3660] close(13) = -1 EBADF (Bad file descriptor) [pid 3660] close(14) = -1 EBADF (Bad file descriptor) [pid 3660] close(15) = -1 EBADF (Bad file descriptor) [pid 3660] close(16) = -1 EBADF (Bad file descriptor) [pid 3660] close(17) = -1 EBADF (Bad file descriptor) [pid 3660] close(18) = -1 EBADF (Bad file descriptor) [pid 3660] close(19) = -1 EBADF (Bad file descriptor) [pid 3660] close(20) = -1 EBADF (Bad file descriptor) [pid 3660] close(21) = -1 EBADF (Bad file descriptor) [pid 3660] close(22) = -1 EBADF (Bad file descriptor) [pid 3660] close(23) = -1 EBADF (Bad file descriptor) [pid 3660] close(24) = -1 EBADF (Bad file descriptor) [pid 3660] close(25) = -1 EBADF (Bad file descriptor) [pid 3660] close(26) = -1 EBADF (Bad file descriptor) [pid 3660] close(27) = -1 EBADF (Bad file descriptor) [pid 3660] close(28) = -1 EBADF (Bad file descriptor) [pid 3660] close(29) = -1 EBADF (Bad file descriptor) [pid 3660] exit_group(0) = ? [pid 3660] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./56/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./56/binderfs") = 0 [pid 3603] umount2("./56/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./56/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./56/cgroup") = 0 [pid 3603] umount2("./56/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./56/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./56/cgroup.net") = 0 [pid 3603] umount2("./56/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./56/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./56/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./56") = 0 [pid 3603] mkdir("./57", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3661 attached [pid 3661] chdir("./57") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 59 [pid 3661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3661] setpgid(0, 0) = 0 [pid 3661] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3661] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3661] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3661] write(3, "1000", 4) = 4 [pid 3661] close(3) = 0 [pid 3661] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3661] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3661] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3661] gettid() = 59 [pid 3661] process_vm_writev(59, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3661] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3661] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3661] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3661] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3661] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3661] close(3) = 0 [pid 3661] close(4) = 0 [pid 3661] close(5) = -1 EBADF (Bad file descriptor) [pid 3661] close(6) = -1 EBADF (Bad file descriptor) [pid 3661] close(7) = -1 EBADF (Bad file descriptor) [pid 3661] close(8) = -1 EBADF (Bad file descriptor) [pid 3661] close(9) = -1 EBADF (Bad file descriptor) [pid 3661] close(10) = -1 EBADF (Bad file descriptor) [pid 3661] close(11) = -1 EBADF (Bad file descriptor) [pid 3661] close(12) = -1 EBADF (Bad file descriptor) [pid 3661] close(13) = -1 EBADF (Bad file descriptor) [pid 3661] close(14) = -1 EBADF (Bad file descriptor) [pid 3661] close(15) = -1 EBADF (Bad file descriptor) [pid 3661] close(16) = -1 EBADF (Bad file descriptor) [pid 3661] close(17) = -1 EBADF (Bad file descriptor) [pid 3661] close(18) = -1 EBADF (Bad file descriptor) [pid 3661] close(19) = -1 EBADF (Bad file descriptor) [pid 3661] close(20) = -1 EBADF (Bad file descriptor) [pid 3661] close(21) = -1 EBADF (Bad file descriptor) [pid 3661] close(22) = -1 EBADF (Bad file descriptor) [pid 3661] close(23) = -1 EBADF (Bad file descriptor) [pid 3661] close(24) = -1 EBADF (Bad file descriptor) [pid 3661] close(25) = -1 EBADF (Bad file descriptor) [pid 3661] close(26) = -1 EBADF (Bad file descriptor) [pid 3661] close(27) = -1 EBADF (Bad file descriptor) [pid 3661] close(28) = -1 EBADF (Bad file descriptor) [pid 3661] close(29) = -1 EBADF (Bad file descriptor) [pid 3661] exit_group(0) = ? [pid 3661] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=59, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./57/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./57/binderfs") = 0 [pid 3603] umount2("./57/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./57/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./57/cgroup") = 0 [pid 3603] umount2("./57/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./57/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./57/cgroup.net") = 0 [pid 3603] umount2("./57/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./57/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./57/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./57") = 0 [pid 3603] mkdir("./58", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 60 ./strace-static-x86_64: Process 3662 attached [pid 3662] chdir("./58") = 0 [pid 3662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3662] setpgid(0, 0) = 0 [pid 3662] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3662] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3662] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3662] write(3, "1000", 4) = 4 [pid 3662] close(3) = 0 [pid 3662] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3662] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3662] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3662] gettid() = 60 [pid 3662] process_vm_writev(60, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3662] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3662] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3662] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3662] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3662] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3662] close(3) = 0 [pid 3662] close(4) = 0 [pid 3662] close(5) = -1 EBADF (Bad file descriptor) [pid 3662] close(6) = -1 EBADF (Bad file descriptor) [pid 3662] close(7) = -1 EBADF (Bad file descriptor) [pid 3662] close(8) = -1 EBADF (Bad file descriptor) [pid 3662] close(9) = -1 EBADF (Bad file descriptor) [pid 3662] close(10) = -1 EBADF (Bad file descriptor) [pid 3662] close(11) = -1 EBADF (Bad file descriptor) [pid 3662] close(12) = -1 EBADF (Bad file descriptor) [pid 3662] close(13) = -1 EBADF (Bad file descriptor) [pid 3662] close(14) = -1 EBADF (Bad file descriptor) [pid 3662] close(15) = -1 EBADF (Bad file descriptor) [pid 3662] close(16) = -1 EBADF (Bad file descriptor) [pid 3662] close(17) = -1 EBADF (Bad file descriptor) [pid 3662] close(18) = -1 EBADF (Bad file descriptor) [pid 3662] close(19) = -1 EBADF (Bad file descriptor) [pid 3662] close(20) = -1 EBADF (Bad file descriptor) [pid 3662] close(21) = -1 EBADF (Bad file descriptor) [pid 3662] close(22) = -1 EBADF (Bad file descriptor) [pid 3662] close(23) = -1 EBADF (Bad file descriptor) [pid 3662] close(24) = -1 EBADF (Bad file descriptor) [pid 3662] close(25) = -1 EBADF (Bad file descriptor) [pid 3662] close(26) = -1 EBADF (Bad file descriptor) [pid 3662] close(27) = -1 EBADF (Bad file descriptor) [pid 3662] close(28) = -1 EBADF (Bad file descriptor) [pid 3662] close(29) = -1 EBADF (Bad file descriptor) [pid 3662] exit_group(0) = ? [pid 3662] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./58/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./58/binderfs") = 0 [pid 3603] umount2("./58/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./58/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./58/cgroup") = 0 [pid 3603] umount2("./58/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./58/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./58/cgroup.net") = 0 [pid 3603] umount2("./58/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./58/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./58/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./58") = 0 [pid 3603] mkdir("./59", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3663 attached [pid 3663] chdir("./59" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 61 [pid 3663] <... chdir resumed>) = 0 [pid 3663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3663] setpgid(0, 0) = 0 [pid 3663] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3663] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3663] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3663] write(3, "1000", 4) = 4 [pid 3663] close(3) = 0 [pid 3663] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3663] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3663] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3663] gettid() = 61 [pid 3663] process_vm_writev(61, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3663] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3663] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3663] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3663] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3663] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3663] close(3) = 0 [pid 3663] close(4) = 0 [pid 3663] close(5) = -1 EBADF (Bad file descriptor) [pid 3663] close(6) = -1 EBADF (Bad file descriptor) [pid 3663] close(7) = -1 EBADF (Bad file descriptor) [pid 3663] close(8) = -1 EBADF (Bad file descriptor) [pid 3663] close(9) = -1 EBADF (Bad file descriptor) [pid 3663] close(10) = -1 EBADF (Bad file descriptor) [pid 3663] close(11) = -1 EBADF (Bad file descriptor) [pid 3663] close(12) = -1 EBADF (Bad file descriptor) [pid 3663] close(13) = -1 EBADF (Bad file descriptor) [pid 3663] close(14) = -1 EBADF (Bad file descriptor) [pid 3663] close(15) = -1 EBADF (Bad file descriptor) [pid 3663] close(16) = -1 EBADF (Bad file descriptor) [pid 3663] close(17) = -1 EBADF (Bad file descriptor) [pid 3663] close(18) = -1 EBADF (Bad file descriptor) [pid 3663] close(19) = -1 EBADF (Bad file descriptor) [pid 3663] close(20) = -1 EBADF (Bad file descriptor) [pid 3663] close(21) = -1 EBADF (Bad file descriptor) [pid 3663] close(22) = -1 EBADF (Bad file descriptor) [pid 3663] close(23) = -1 EBADF (Bad file descriptor) [pid 3663] close(24) = -1 EBADF (Bad file descriptor) [pid 3663] close(25) = -1 EBADF (Bad file descriptor) [pid 3663] close(26) = -1 EBADF (Bad file descriptor) [pid 3663] close(27) = -1 EBADF (Bad file descriptor) [pid 3663] close(28) = -1 EBADF (Bad file descriptor) [pid 3663] close(29) = -1 EBADF (Bad file descriptor) [pid 3663] exit_group(0) = ? [pid 3663] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=61, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./59/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./59/binderfs") = 0 [pid 3603] umount2("./59/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./59/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./59/cgroup") = 0 [pid 3603] umount2("./59/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./59/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./59/cgroup.net") = 0 [pid 3603] umount2("./59/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./59/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./59/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./59") = 0 [pid 3603] mkdir("./60", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3664 attached , child_tidptr=0x5555567b05d0) = 62 [pid 3664] chdir("./60") = 0 [pid 3664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3664] setpgid(0, 0) = 0 [pid 3664] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3664] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3664] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3664] write(3, "1000", 4) = 4 [pid 3664] close(3) = 0 [pid 3664] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3664] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3664] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3664] gettid() = 62 [pid 3664] process_vm_writev(62, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3664] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3664] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3664] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3664] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3664] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3664] close(3) = 0 [pid 3664] close(4) = 0 [pid 3664] close(5) = -1 EBADF (Bad file descriptor) [pid 3664] close(6) = -1 EBADF (Bad file descriptor) [pid 3664] close(7) = -1 EBADF (Bad file descriptor) [pid 3664] close(8) = -1 EBADF (Bad file descriptor) [pid 3664] close(9) = -1 EBADF (Bad file descriptor) [pid 3664] close(10) = -1 EBADF (Bad file descriptor) [pid 3664] close(11) = -1 EBADF (Bad file descriptor) [pid 3664] close(12) = -1 EBADF (Bad file descriptor) [pid 3664] close(13) = -1 EBADF (Bad file descriptor) [pid 3664] close(14) = -1 EBADF (Bad file descriptor) [pid 3664] close(15) = -1 EBADF (Bad file descriptor) [pid 3664] close(16) = -1 EBADF (Bad file descriptor) [pid 3664] close(17) = -1 EBADF (Bad file descriptor) [pid 3664] close(18) = -1 EBADF (Bad file descriptor) [pid 3664] close(19) = -1 EBADF (Bad file descriptor) [pid 3664] close(20) = -1 EBADF (Bad file descriptor) [pid 3664] close(21) = -1 EBADF (Bad file descriptor) [pid 3664] close(22) = -1 EBADF (Bad file descriptor) [pid 3664] close(23) = -1 EBADF (Bad file descriptor) [pid 3664] close(24) = -1 EBADF (Bad file descriptor) [pid 3664] close(25) = -1 EBADF (Bad file descriptor) [pid 3664] close(26) = -1 EBADF (Bad file descriptor) [pid 3664] close(27) = -1 EBADF (Bad file descriptor) [pid 3664] close(28) = -1 EBADF (Bad file descriptor) [pid 3664] close(29) = -1 EBADF (Bad file descriptor) [pid 3664] exit_group(0) = ? [pid 3664] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=62, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./60/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./60/binderfs") = 0 [pid 3603] umount2("./60/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./60/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./60/cgroup") = 0 [pid 3603] umount2("./60/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./60/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./60/cgroup.net") = 0 [pid 3603] umount2("./60/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./60/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./60/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./60") = 0 [pid 3603] mkdir("./61", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 63 ./strace-static-x86_64: Process 3665 attached [pid 3665] chdir("./61") = 0 [pid 3665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3665] setpgid(0, 0) = 0 [pid 3665] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3665] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3665] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3665] write(3, "1000", 4) = 4 [pid 3665] close(3) = 0 [pid 3665] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3665] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3665] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3665] gettid() = 63 [pid 3665] process_vm_writev(63, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3665] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3665] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3665] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3665] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3665] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3665] close(3) = 0 [pid 3665] close(4) = 0 [pid 3665] close(5) = -1 EBADF (Bad file descriptor) [pid 3665] close(6) = -1 EBADF (Bad file descriptor) [pid 3665] close(7) = -1 EBADF (Bad file descriptor) [pid 3665] close(8) = -1 EBADF (Bad file descriptor) [pid 3665] close(9) = -1 EBADF (Bad file descriptor) [pid 3665] close(10) = -1 EBADF (Bad file descriptor) [pid 3665] close(11) = -1 EBADF (Bad file descriptor) [pid 3665] close(12) = -1 EBADF (Bad file descriptor) [pid 3665] close(13) = -1 EBADF (Bad file descriptor) [pid 3665] close(14) = -1 EBADF (Bad file descriptor) [pid 3665] close(15) = -1 EBADF (Bad file descriptor) [pid 3665] close(16) = -1 EBADF (Bad file descriptor) [pid 3665] close(17) = -1 EBADF (Bad file descriptor) [pid 3665] close(18) = -1 EBADF (Bad file descriptor) [pid 3665] close(19) = -1 EBADF (Bad file descriptor) [pid 3665] close(20) = -1 EBADF (Bad file descriptor) [pid 3665] close(21) = -1 EBADF (Bad file descriptor) [pid 3665] close(22) = -1 EBADF (Bad file descriptor) [pid 3665] close(23) = -1 EBADF (Bad file descriptor) [pid 3665] close(24) = -1 EBADF (Bad file descriptor) [pid 3665] close(25) = -1 EBADF (Bad file descriptor) [pid 3665] close(26) = -1 EBADF (Bad file descriptor) [pid 3665] close(27) = -1 EBADF (Bad file descriptor) [pid 3665] close(28) = -1 EBADF (Bad file descriptor) [pid 3665] close(29) = -1 EBADF (Bad file descriptor) [pid 3665] exit_group(0) = ? [pid 3665] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=63, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./61/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./61/binderfs") = 0 [pid 3603] umount2("./61/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./61/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./61/cgroup") = 0 [pid 3603] umount2("./61/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./61/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./61/cgroup.net") = 0 [pid 3603] umount2("./61/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./61/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./61/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./61") = 0 [pid 3603] mkdir("./62", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3666 attached , child_tidptr=0x5555567b05d0) = 64 [pid 3666] chdir("./62") = 0 [pid 3666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3666] setpgid(0, 0) = 0 [pid 3666] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3666] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3666] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3666] write(3, "1000", 4) = 4 [pid 3666] close(3) = 0 [pid 3666] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3666] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3666] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3666] gettid() = 64 [pid 3666] process_vm_writev(64, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3666] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3666] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3666] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3666] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3666] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3666] close(3) = 0 [pid 3666] close(4) = 0 [pid 3666] close(5) = -1 EBADF (Bad file descriptor) [pid 3666] close(6) = -1 EBADF (Bad file descriptor) [pid 3666] close(7) = -1 EBADF (Bad file descriptor) [pid 3666] close(8) = -1 EBADF (Bad file descriptor) [pid 3666] close(9) = -1 EBADF (Bad file descriptor) [pid 3666] close(10) = -1 EBADF (Bad file descriptor) [pid 3666] close(11) = -1 EBADF (Bad file descriptor) [pid 3666] close(12) = -1 EBADF (Bad file descriptor) [pid 3666] close(13) = -1 EBADF (Bad file descriptor) [pid 3666] close(14) = -1 EBADF (Bad file descriptor) [pid 3666] close(15) = -1 EBADF (Bad file descriptor) [pid 3666] close(16) = -1 EBADF (Bad file descriptor) [pid 3666] close(17) = -1 EBADF (Bad file descriptor) [pid 3666] close(18) = -1 EBADF (Bad file descriptor) [pid 3666] close(19) = -1 EBADF (Bad file descriptor) [pid 3666] close(20) = -1 EBADF (Bad file descriptor) [pid 3666] close(21) = -1 EBADF (Bad file descriptor) [pid 3666] close(22) = -1 EBADF (Bad file descriptor) [pid 3666] close(23) = -1 EBADF (Bad file descriptor) [pid 3666] close(24) = -1 EBADF (Bad file descriptor) [pid 3666] close(25) = -1 EBADF (Bad file descriptor) [pid 3666] close(26) = -1 EBADF (Bad file descriptor) [pid 3666] close(27) = -1 EBADF (Bad file descriptor) [pid 3666] close(28) = -1 EBADF (Bad file descriptor) [pid 3666] close(29) = -1 EBADF (Bad file descriptor) [pid 3666] exit_group(0) = ? [pid 3666] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=64, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./62/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./62/binderfs") = 0 [pid 3603] umount2("./62/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./62/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./62/cgroup") = 0 [pid 3603] umount2("./62/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./62/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./62/cgroup.net") = 0 [pid 3603] umount2("./62/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./62/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./62/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./62") = 0 [pid 3603] mkdir("./63", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3667 attached , child_tidptr=0x5555567b05d0) = 65 [pid 3667] chdir("./63") = 0 [pid 3667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3667] setpgid(0, 0) = 0 [pid 3667] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3667] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3667] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3667] write(3, "1000", 4) = 4 [pid 3667] close(3) = 0 [pid 3667] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3667] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3667] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3667] gettid() = 65 [pid 3667] process_vm_writev(65, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3667] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3667] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3667] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3667] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3667] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3667] close(3) = 0 [pid 3667] close(4) = 0 [pid 3667] close(5) = -1 EBADF (Bad file descriptor) [pid 3667] close(6) = -1 EBADF (Bad file descriptor) [pid 3667] close(7) = -1 EBADF (Bad file descriptor) [pid 3667] close(8) = -1 EBADF (Bad file descriptor) [pid 3667] close(9) = -1 EBADF (Bad file descriptor) [pid 3667] close(10) = -1 EBADF (Bad file descriptor) [pid 3667] close(11) = -1 EBADF (Bad file descriptor) [pid 3667] close(12) = -1 EBADF (Bad file descriptor) [pid 3667] close(13) = -1 EBADF (Bad file descriptor) [pid 3667] close(14) = -1 EBADF (Bad file descriptor) [pid 3667] close(15) = -1 EBADF (Bad file descriptor) [pid 3667] close(16) = -1 EBADF (Bad file descriptor) [pid 3667] close(17) = -1 EBADF (Bad file descriptor) [pid 3667] close(18) = -1 EBADF (Bad file descriptor) [pid 3667] close(19) = -1 EBADF (Bad file descriptor) [pid 3667] close(20) = -1 EBADF (Bad file descriptor) [pid 3667] close(21) = -1 EBADF (Bad file descriptor) [pid 3667] close(22) = -1 EBADF (Bad file descriptor) [pid 3667] close(23) = -1 EBADF (Bad file descriptor) [pid 3667] close(24) = -1 EBADF (Bad file descriptor) [pid 3667] close(25) = -1 EBADF (Bad file descriptor) [pid 3667] close(26) = -1 EBADF (Bad file descriptor) [pid 3667] close(27) = -1 EBADF (Bad file descriptor) [pid 3667] close(28) = -1 EBADF (Bad file descriptor) [pid 3667] close(29) = -1 EBADF (Bad file descriptor) [pid 3667] exit_group(0) = ? [pid 3667] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=65, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./63/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./63/binderfs") = 0 [pid 3603] umount2("./63/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./63/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./63/cgroup") = 0 [pid 3603] umount2("./63/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./63/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./63/cgroup.net") = 0 [pid 3603] umount2("./63/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./63/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./63/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./63") = 0 [pid 3603] mkdir("./64", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3668 attached [pid 3668] chdir("./64") = 0 [pid 3668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3668] setpgid(0, 0) = 0 [pid 3668] symlink("/syzcgroup/unified/syz0", "./cgroup" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 66 [pid 3668] <... symlink resumed>) = 0 [pid 3668] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3668] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3668] write(3, "1000", 4) = 4 [pid 3668] close(3) = 0 [pid 3668] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3668] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3668] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3668] gettid() = 66 [pid 3668] process_vm_writev(66, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3668] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3668] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3668] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3668] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3668] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3668] close(3) = 0 [pid 3668] close(4) = 0 [pid 3668] close(5) = -1 EBADF (Bad file descriptor) [pid 3668] close(6) = -1 EBADF (Bad file descriptor) [pid 3668] close(7) = -1 EBADF (Bad file descriptor) [pid 3668] close(8) = -1 EBADF (Bad file descriptor) [pid 3668] close(9) = -1 EBADF (Bad file descriptor) [pid 3668] close(10) = -1 EBADF (Bad file descriptor) [pid 3668] close(11) = -1 EBADF (Bad file descriptor) [pid 3668] close(12) = -1 EBADF (Bad file descriptor) [pid 3668] close(13) = -1 EBADF (Bad file descriptor) [pid 3668] close(14) = -1 EBADF (Bad file descriptor) [pid 3668] close(15) = -1 EBADF (Bad file descriptor) [pid 3668] close(16) = -1 EBADF (Bad file descriptor) [pid 3668] close(17) = -1 EBADF (Bad file descriptor) [pid 3668] close(18) = -1 EBADF (Bad file descriptor) [pid 3668] close(19) = -1 EBADF (Bad file descriptor) [pid 3668] close(20) = -1 EBADF (Bad file descriptor) [pid 3668] close(21) = -1 EBADF (Bad file descriptor) [pid 3668] close(22) = -1 EBADF (Bad file descriptor) [pid 3668] close(23) = -1 EBADF (Bad file descriptor) [pid 3668] close(24) = -1 EBADF (Bad file descriptor) [pid 3668] close(25) = -1 EBADF (Bad file descriptor) [pid 3668] close(26) = -1 EBADF (Bad file descriptor) [pid 3668] close(27) = -1 EBADF (Bad file descriptor) [pid 3668] close(28) = -1 EBADF (Bad file descriptor) [pid 3668] close(29) = -1 EBADF (Bad file descriptor) [pid 3668] exit_group(0) = ? [pid 3668] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=66, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3603] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./64/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./64/binderfs") = 0 [pid 3603] umount2("./64/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./64/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./64/cgroup") = 0 [pid 3603] umount2("./64/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./64/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./64/cgroup.net") = 0 [pid 3603] umount2("./64/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./64/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./64/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./64") = 0 [pid 3603] mkdir("./65", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3669 attached [pid 3669] chdir("./65" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 67 [pid 3669] <... chdir resumed>) = 0 [pid 3669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3669] setpgid(0, 0) = 0 [pid 3669] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3669] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3669] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3669] write(3, "1000", 4) = 4 [pid 3669] close(3) = 0 [pid 3669] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3669] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3669] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3669] gettid() = 67 [pid 3669] process_vm_writev(67, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3669] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3669] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3669] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3669] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3669] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3669] close(3) = 0 [pid 3669] close(4) = 0 [pid 3669] close(5) = -1 EBADF (Bad file descriptor) [pid 3669] close(6) = -1 EBADF (Bad file descriptor) [pid 3669] close(7) = -1 EBADF (Bad file descriptor) [pid 3669] close(8) = -1 EBADF (Bad file descriptor) [pid 3669] close(9) = -1 EBADF (Bad file descriptor) [pid 3669] close(10) = -1 EBADF (Bad file descriptor) [pid 3669] close(11) = -1 EBADF (Bad file descriptor) [pid 3669] close(12) = -1 EBADF (Bad file descriptor) [pid 3669] close(13) = -1 EBADF (Bad file descriptor) [pid 3669] close(14) = -1 EBADF (Bad file descriptor) [pid 3669] close(15) = -1 EBADF (Bad file descriptor) [pid 3669] close(16) = -1 EBADF (Bad file descriptor) [pid 3669] close(17) = -1 EBADF (Bad file descriptor) [pid 3669] close(18) = -1 EBADF (Bad file descriptor) [pid 3669] close(19) = -1 EBADF (Bad file descriptor) [pid 3669] close(20) = -1 EBADF (Bad file descriptor) [pid 3669] close(21) = -1 EBADF (Bad file descriptor) [pid 3669] close(22) = -1 EBADF (Bad file descriptor) [pid 3669] close(23) = -1 EBADF (Bad file descriptor) [pid 3669] close(24) = -1 EBADF (Bad file descriptor) [pid 3669] close(25) = -1 EBADF (Bad file descriptor) [pid 3669] close(26) = -1 EBADF (Bad file descriptor) [pid 3669] close(27) = -1 EBADF (Bad file descriptor) [pid 3669] close(28) = -1 EBADF (Bad file descriptor) [pid 3669] close(29) = -1 EBADF (Bad file descriptor) [pid 3669] exit_group(0) = ? [pid 3669] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=67, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./65/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./65/binderfs") = 0 [pid 3603] umount2("./65/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./65/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./65/cgroup") = 0 [pid 3603] umount2("./65/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./65/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./65/cgroup.net") = 0 [pid 3603] umount2("./65/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./65/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./65/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./65") = 0 [pid 3603] mkdir("./66", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3670 attached , child_tidptr=0x5555567b05d0) = 68 [pid 3670] chdir("./66") = 0 [pid 3670] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3670] setpgid(0, 0) = 0 [pid 3670] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3670] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3670] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3670] write(3, "1000", 4) = 4 [pid 3670] close(3) = 0 [pid 3670] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3670] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3670] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3670] gettid() = 68 [pid 3670] process_vm_writev(68, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3670] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3670] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3670] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3670] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3670] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3670] close(3) = 0 [pid 3670] close(4) = 0 [pid 3670] close(5) = -1 EBADF (Bad file descriptor) [pid 3670] close(6) = -1 EBADF (Bad file descriptor) [pid 3670] close(7) = -1 EBADF (Bad file descriptor) [pid 3670] close(8) = -1 EBADF (Bad file descriptor) [pid 3670] close(9) = -1 EBADF (Bad file descriptor) [pid 3670] close(10) = -1 EBADF (Bad file descriptor) [pid 3670] close(11) = -1 EBADF (Bad file descriptor) [pid 3670] close(12) = -1 EBADF (Bad file descriptor) [pid 3670] close(13) = -1 EBADF (Bad file descriptor) [pid 3670] close(14) = -1 EBADF (Bad file descriptor) [pid 3670] close(15) = -1 EBADF (Bad file descriptor) [pid 3670] close(16) = -1 EBADF (Bad file descriptor) [pid 3670] close(17) = -1 EBADF (Bad file descriptor) [pid 3670] close(18) = -1 EBADF (Bad file descriptor) [pid 3670] close(19) = -1 EBADF (Bad file descriptor) [pid 3670] close(20) = -1 EBADF (Bad file descriptor) [pid 3670] close(21) = -1 EBADF (Bad file descriptor) [pid 3670] close(22) = -1 EBADF (Bad file descriptor) [pid 3670] close(23) = -1 EBADF (Bad file descriptor) [pid 3670] close(24) = -1 EBADF (Bad file descriptor) [pid 3670] close(25) = -1 EBADF (Bad file descriptor) [pid 3670] close(26) = -1 EBADF (Bad file descriptor) [pid 3670] close(27) = -1 EBADF (Bad file descriptor) [pid 3670] close(28) = -1 EBADF (Bad file descriptor) [pid 3670] close(29) = -1 EBADF (Bad file descriptor) [pid 3670] exit_group(0) = ? [pid 3670] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=68, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./66/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./66/binderfs") = 0 [pid 3603] umount2("./66/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./66/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./66/cgroup") = 0 [pid 3603] umount2("./66/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./66/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./66/cgroup.net") = 0 [pid 3603] umount2("./66/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./66/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./66/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./66") = 0 [pid 3603] mkdir("./67", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3671 attached , child_tidptr=0x5555567b05d0) = 69 [pid 3671] chdir("./67") = 0 [pid 3671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3671] setpgid(0, 0) = 0 [pid 3671] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3671] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3671] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3671] write(3, "1000", 4) = 4 [pid 3671] close(3) = 0 [pid 3671] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3671] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3671] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3671] gettid() = 69 [pid 3671] process_vm_writev(69, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3671] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3671] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3671] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3671] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3671] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3671] close(3) = 0 [pid 3671] close(4) = 0 [pid 3671] close(5) = -1 EBADF (Bad file descriptor) [pid 3671] close(6) = -1 EBADF (Bad file descriptor) [pid 3671] close(7) = -1 EBADF (Bad file descriptor) [pid 3671] close(8) = -1 EBADF (Bad file descriptor) [pid 3671] close(9) = -1 EBADF (Bad file descriptor) [pid 3671] close(10) = -1 EBADF (Bad file descriptor) [pid 3671] close(11) = -1 EBADF (Bad file descriptor) [pid 3671] close(12) = -1 EBADF (Bad file descriptor) [pid 3671] close(13) = -1 EBADF (Bad file descriptor) [pid 3671] close(14) = -1 EBADF (Bad file descriptor) [pid 3671] close(15) = -1 EBADF (Bad file descriptor) [pid 3671] close(16) = -1 EBADF (Bad file descriptor) [pid 3671] close(17) = -1 EBADF (Bad file descriptor) [pid 3671] close(18) = -1 EBADF (Bad file descriptor) [pid 3671] close(19) = -1 EBADF (Bad file descriptor) [pid 3671] close(20) = -1 EBADF (Bad file descriptor) [pid 3671] close(21) = -1 EBADF (Bad file descriptor) [pid 3671] close(22) = -1 EBADF (Bad file descriptor) [pid 3671] close(23) = -1 EBADF (Bad file descriptor) [pid 3671] close(24) = -1 EBADF (Bad file descriptor) [pid 3671] close(25) = -1 EBADF (Bad file descriptor) [pid 3671] close(26) = -1 EBADF (Bad file descriptor) [pid 3671] close(27) = -1 EBADF (Bad file descriptor) [pid 3671] close(28) = -1 EBADF (Bad file descriptor) [pid 3671] close(29) = -1 EBADF (Bad file descriptor) [pid 3671] exit_group(0) = ? [pid 3671] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=69, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3603] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./67/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./67/binderfs") = 0 [pid 3603] umount2("./67/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./67/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./67/cgroup") = 0 [pid 3603] umount2("./67/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./67/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./67/cgroup.net") = 0 [pid 3603] umount2("./67/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./67/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./67/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./67") = 0 [pid 3603] mkdir("./68", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3672 attached [pid 3672] chdir("./68" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 70 [pid 3672] <... chdir resumed>) = 0 [pid 3672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3672] setpgid(0, 0) = 0 [pid 3672] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3672] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3672] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3672] write(3, "1000", 4) = 4 [pid 3672] close(3) = 0 [pid 3672] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3672] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3672] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3672] gettid() = 70 [pid 3672] process_vm_writev(70, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3672] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3672] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3672] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3672] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3672] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3672] close(3) = 0 [pid 3672] close(4) = 0 [pid 3672] close(5) = -1 EBADF (Bad file descriptor) [pid 3672] close(6) = -1 EBADF (Bad file descriptor) [pid 3672] close(7) = -1 EBADF (Bad file descriptor) [pid 3672] close(8) = -1 EBADF (Bad file descriptor) [pid 3672] close(9) = -1 EBADF (Bad file descriptor) [pid 3672] close(10) = -1 EBADF (Bad file descriptor) [pid 3672] close(11) = -1 EBADF (Bad file descriptor) [pid 3672] close(12) = -1 EBADF (Bad file descriptor) [pid 3672] close(13) = -1 EBADF (Bad file descriptor) [pid 3672] close(14) = -1 EBADF (Bad file descriptor) [pid 3672] close(15) = -1 EBADF (Bad file descriptor) [pid 3672] close(16) = -1 EBADF (Bad file descriptor) [pid 3672] close(17) = -1 EBADF (Bad file descriptor) [pid 3672] close(18) = -1 EBADF (Bad file descriptor) [pid 3672] close(19) = -1 EBADF (Bad file descriptor) [pid 3672] close(20) = -1 EBADF (Bad file descriptor) [pid 3672] close(21) = -1 EBADF (Bad file descriptor) [pid 3672] close(22) = -1 EBADF (Bad file descriptor) [pid 3672] close(23) = -1 EBADF (Bad file descriptor) [pid 3672] close(24) = -1 EBADF (Bad file descriptor) [pid 3672] close(25) = -1 EBADF (Bad file descriptor) [pid 3672] close(26) = -1 EBADF (Bad file descriptor) [pid 3672] close(27) = -1 EBADF (Bad file descriptor) [pid 3672] close(28) = -1 EBADF (Bad file descriptor) [pid 3672] close(29) = -1 EBADF (Bad file descriptor) [pid 3672] exit_group(0) = ? [pid 3672] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=70, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./68/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./68/binderfs") = 0 [pid 3603] umount2("./68/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./68/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./68/cgroup") = 0 [pid 3603] umount2("./68/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./68/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./68/cgroup.net") = 0 [pid 3603] umount2("./68/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./68/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./68/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./68") = 0 [pid 3603] mkdir("./69", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3673 attached [pid 3673] chdir("./69") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 71 [pid 3673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3673] setpgid(0, 0) = 0 [pid 3673] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3673] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3673] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3673] write(3, "1000", 4) = 4 [pid 3673] close(3) = 0 [pid 3673] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3673] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3673] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3673] gettid() = 71 [pid 3673] process_vm_writev(71, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3673] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3673] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3673] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3673] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3673] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3673] close(3) = 0 [pid 3673] close(4) = 0 [pid 3673] close(5) = -1 EBADF (Bad file descriptor) [pid 3673] close(6) = -1 EBADF (Bad file descriptor) [pid 3673] close(7) = -1 EBADF (Bad file descriptor) [pid 3673] close(8) = -1 EBADF (Bad file descriptor) [pid 3673] close(9) = -1 EBADF (Bad file descriptor) [pid 3673] close(10) = -1 EBADF (Bad file descriptor) [pid 3673] close(11) = -1 EBADF (Bad file descriptor) [pid 3673] close(12) = -1 EBADF (Bad file descriptor) [pid 3673] close(13) = -1 EBADF (Bad file descriptor) [pid 3673] close(14) = -1 EBADF (Bad file descriptor) [pid 3673] close(15) = -1 EBADF (Bad file descriptor) [pid 3673] close(16) = -1 EBADF (Bad file descriptor) [pid 3673] close(17) = -1 EBADF (Bad file descriptor) [pid 3673] close(18) = -1 EBADF (Bad file descriptor) [pid 3673] close(19) = -1 EBADF (Bad file descriptor) [pid 3673] close(20) = -1 EBADF (Bad file descriptor) [pid 3673] close(21) = -1 EBADF (Bad file descriptor) [pid 3673] close(22) = -1 EBADF (Bad file descriptor) [pid 3673] close(23) = -1 EBADF (Bad file descriptor) [pid 3673] close(24) = -1 EBADF (Bad file descriptor) [pid 3673] close(25) = -1 EBADF (Bad file descriptor) [pid 3673] close(26) = -1 EBADF (Bad file descriptor) [pid 3673] close(27) = -1 EBADF (Bad file descriptor) [pid 3673] close(28) = -1 EBADF (Bad file descriptor) [pid 3673] close(29) = -1 EBADF (Bad file descriptor) [pid 3673] exit_group(0) = ? [pid 3673] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=71, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./69/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./69/binderfs") = 0 [pid 3603] umount2("./69/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./69/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./69/cgroup") = 0 [pid 3603] umount2("./69/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./69/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./69/cgroup.net") = 0 [pid 3603] umount2("./69/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./69/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./69/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./69") = 0 [pid 3603] mkdir("./70", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3674 attached , child_tidptr=0x5555567b05d0) = 72 [pid 3674] chdir("./70") = 0 [pid 3674] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3674] setpgid(0, 0) = 0 [pid 3674] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3674] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3674] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3674] write(3, "1000", 4) = 4 [pid 3674] close(3) = 0 [pid 3674] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3674] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3674] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3674] gettid() = 72 [pid 3674] process_vm_writev(72, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3674] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3674] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3674] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3674] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3674] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3674] close(3) = 0 [pid 3674] close(4) = 0 [pid 3674] close(5) = -1 EBADF (Bad file descriptor) [pid 3674] close(6) = -1 EBADF (Bad file descriptor) [pid 3674] close(7) = -1 EBADF (Bad file descriptor) [pid 3674] close(8) = -1 EBADF (Bad file descriptor) [pid 3674] close(9) = -1 EBADF (Bad file descriptor) [pid 3674] close(10) = -1 EBADF (Bad file descriptor) [pid 3674] close(11) = -1 EBADF (Bad file descriptor) [pid 3674] close(12) = -1 EBADF (Bad file descriptor) [pid 3674] close(13) = -1 EBADF (Bad file descriptor) [pid 3674] close(14) = -1 EBADF (Bad file descriptor) [pid 3674] close(15) = -1 EBADF (Bad file descriptor) [pid 3674] close(16) = -1 EBADF (Bad file descriptor) [pid 3674] close(17) = -1 EBADF (Bad file descriptor) [pid 3674] close(18) = -1 EBADF (Bad file descriptor) [pid 3674] close(19) = -1 EBADF (Bad file descriptor) [pid 3674] close(20) = -1 EBADF (Bad file descriptor) [pid 3674] close(21) = -1 EBADF (Bad file descriptor) [pid 3674] close(22) = -1 EBADF (Bad file descriptor) [pid 3674] close(23) = -1 EBADF (Bad file descriptor) [pid 3674] close(24) = -1 EBADF (Bad file descriptor) [pid 3674] close(25) = -1 EBADF (Bad file descriptor) [pid 3674] close(26) = -1 EBADF (Bad file descriptor) [pid 3674] close(27) = -1 EBADF (Bad file descriptor) [pid 3674] close(28) = -1 EBADF (Bad file descriptor) [pid 3674] close(29) = -1 EBADF (Bad file descriptor) [pid 3674] exit_group(0) = ? [pid 3674] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=72, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./70/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./70/binderfs") = 0 [pid 3603] umount2("./70/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./70/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./70/cgroup") = 0 [pid 3603] umount2("./70/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./70/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./70/cgroup.net") = 0 [pid 3603] umount2("./70/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./70/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./70/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./70") = 0 [pid 3603] mkdir("./71", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 73 ./strace-static-x86_64: Process 3675 attached [pid 3675] chdir("./71") = 0 [pid 3675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3675] setpgid(0, 0) = 0 [pid 3675] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3675] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3675] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3675] write(3, "1000", 4) = 4 [pid 3675] close(3) = 0 [pid 3675] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3675] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3675] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3675] gettid() = 73 [pid 3675] process_vm_writev(73, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3675] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3675] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3675] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3675] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3675] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3675] close(3) = 0 [pid 3675] close(4) = 0 [pid 3675] close(5) = -1 EBADF (Bad file descriptor) [pid 3675] close(6) = -1 EBADF (Bad file descriptor) [pid 3675] close(7) = -1 EBADF (Bad file descriptor) [pid 3675] close(8) = -1 EBADF (Bad file descriptor) [pid 3675] close(9) = -1 EBADF (Bad file descriptor) [pid 3675] close(10) = -1 EBADF (Bad file descriptor) [pid 3675] close(11) = -1 EBADF (Bad file descriptor) [pid 3675] close(12) = -1 EBADF (Bad file descriptor) [pid 3675] close(13) = -1 EBADF (Bad file descriptor) [pid 3675] close(14) = -1 EBADF (Bad file descriptor) [pid 3675] close(15) = -1 EBADF (Bad file descriptor) [pid 3675] close(16) = -1 EBADF (Bad file descriptor) [pid 3675] close(17) = -1 EBADF (Bad file descriptor) [pid 3675] close(18) = -1 EBADF (Bad file descriptor) [pid 3675] close(19) = -1 EBADF (Bad file descriptor) [pid 3675] close(20) = -1 EBADF (Bad file descriptor) [pid 3675] close(21) = -1 EBADF (Bad file descriptor) [pid 3675] close(22) = -1 EBADF (Bad file descriptor) [pid 3675] close(23) = -1 EBADF (Bad file descriptor) [pid 3675] close(24) = -1 EBADF (Bad file descriptor) [pid 3675] close(25) = -1 EBADF (Bad file descriptor) [pid 3675] close(26) = -1 EBADF (Bad file descriptor) [pid 3675] close(27) = -1 EBADF (Bad file descriptor) [pid 3675] close(28) = -1 EBADF (Bad file descriptor) [pid 3675] close(29) = -1 EBADF (Bad file descriptor) [pid 3675] exit_group(0) = ? [pid 3675] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=73, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./71/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./71/binderfs") = 0 [pid 3603] umount2("./71/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./71/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./71/cgroup") = 0 [pid 3603] umount2("./71/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./71/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./71/cgroup.net") = 0 [pid 3603] umount2("./71/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./71/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./71/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./71") = 0 [pid 3603] mkdir("./72", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3676 attached , child_tidptr=0x5555567b05d0) = 74 [pid 3676] chdir("./72") = 0 [pid 3676] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3676] setpgid(0, 0) = 0 [pid 3676] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3676] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3676] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3676] write(3, "1000", 4) = 4 [pid 3676] close(3) = 0 [pid 3676] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3676] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3676] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3676] gettid() = 74 [pid 3676] process_vm_writev(74, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3676] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3676] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3676] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3676] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3676] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3676] close(3) = 0 [pid 3676] close(4) = 0 [pid 3676] close(5) = -1 EBADF (Bad file descriptor) [pid 3676] close(6) = -1 EBADF (Bad file descriptor) [pid 3676] close(7) = -1 EBADF (Bad file descriptor) [pid 3676] close(8) = -1 EBADF (Bad file descriptor) [pid 3676] close(9) = -1 EBADF (Bad file descriptor) [pid 3676] close(10) = -1 EBADF (Bad file descriptor) [pid 3676] close(11) = -1 EBADF (Bad file descriptor) [pid 3676] close(12) = -1 EBADF (Bad file descriptor) [pid 3676] close(13) = -1 EBADF (Bad file descriptor) [pid 3676] close(14) = -1 EBADF (Bad file descriptor) [pid 3676] close(15) = -1 EBADF (Bad file descriptor) [pid 3676] close(16) = -1 EBADF (Bad file descriptor) [pid 3676] close(17) = -1 EBADF (Bad file descriptor) [pid 3676] close(18) = -1 EBADF (Bad file descriptor) [pid 3676] close(19) = -1 EBADF (Bad file descriptor) [pid 3676] close(20) = -1 EBADF (Bad file descriptor) [pid 3676] close(21) = -1 EBADF (Bad file descriptor) [pid 3676] close(22) = -1 EBADF (Bad file descriptor) [pid 3676] close(23) = -1 EBADF (Bad file descriptor) [pid 3676] close(24) = -1 EBADF (Bad file descriptor) [pid 3676] close(25) = -1 EBADF (Bad file descriptor) [pid 3676] close(26) = -1 EBADF (Bad file descriptor) [pid 3676] close(27) = -1 EBADF (Bad file descriptor) [pid 3676] close(28) = -1 EBADF (Bad file descriptor) [pid 3676] close(29) = -1 EBADF (Bad file descriptor) [pid 3676] exit_group(0) = ? [pid 3676] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=74, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./72/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./72/binderfs") = 0 [pid 3603] umount2("./72/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./72/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./72/cgroup") = 0 [pid 3603] umount2("./72/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./72/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./72/cgroup.net") = 0 [pid 3603] umount2("./72/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./72/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./72/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./72") = 0 [pid 3603] mkdir("./73", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3677 attached , child_tidptr=0x5555567b05d0) = 75 [pid 3677] chdir("./73") = 0 [pid 3677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3677] setpgid(0, 0) = 0 [pid 3677] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3677] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3677] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3677] write(3, "1000", 4) = 4 [pid 3677] close(3) = 0 [pid 3677] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3677] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3677] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3677] gettid() = 75 [pid 3677] process_vm_writev(75, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3677] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3677] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3677] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3677] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3677] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3677] close(3) = 0 [pid 3677] close(4) = 0 [pid 3677] close(5) = -1 EBADF (Bad file descriptor) [pid 3677] close(6) = -1 EBADF (Bad file descriptor) [pid 3677] close(7) = -1 EBADF (Bad file descriptor) [pid 3677] close(8) = -1 EBADF (Bad file descriptor) [pid 3677] close(9) = -1 EBADF (Bad file descriptor) [pid 3677] close(10) = -1 EBADF (Bad file descriptor) [pid 3677] close(11) = -1 EBADF (Bad file descriptor) [pid 3677] close(12) = -1 EBADF (Bad file descriptor) [pid 3677] close(13) = -1 EBADF (Bad file descriptor) [pid 3677] close(14) = -1 EBADF (Bad file descriptor) [pid 3677] close(15) = -1 EBADF (Bad file descriptor) [pid 3677] close(16) = -1 EBADF (Bad file descriptor) [pid 3677] close(17) = -1 EBADF (Bad file descriptor) [pid 3677] close(18) = -1 EBADF (Bad file descriptor) [pid 3677] close(19) = -1 EBADF (Bad file descriptor) [pid 3677] close(20) = -1 EBADF (Bad file descriptor) [pid 3677] close(21) = -1 EBADF (Bad file descriptor) [pid 3677] close(22) = -1 EBADF (Bad file descriptor) [pid 3677] close(23) = -1 EBADF (Bad file descriptor) [pid 3677] close(24) = -1 EBADF (Bad file descriptor) [pid 3677] close(25) = -1 EBADF (Bad file descriptor) [pid 3677] close(26) = -1 EBADF (Bad file descriptor) [pid 3677] close(27) = -1 EBADF (Bad file descriptor) [pid 3677] close(28) = -1 EBADF (Bad file descriptor) [pid 3677] close(29) = -1 EBADF (Bad file descriptor) [pid 3677] exit_group(0) = ? [pid 3677] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=75, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./73/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./73/binderfs") = 0 [pid 3603] umount2("./73/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./73/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./73/cgroup") = 0 [pid 3603] umount2("./73/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./73/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./73/cgroup.net") = 0 [pid 3603] umount2("./73/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./73/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./73/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./73") = 0 [pid 3603] mkdir("./74", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3678 attached , child_tidptr=0x5555567b05d0) = 76 [pid 3678] chdir("./74") = 0 [pid 3678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3678] setpgid(0, 0) = 0 [pid 3678] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3678] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3678] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3678] write(3, "1000", 4) = 4 [pid 3678] close(3) = 0 [pid 3678] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3678] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3678] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3678] gettid() = 76 [pid 3678] process_vm_writev(76, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3678] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3678] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3678] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3678] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3678] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3678] close(3) = 0 [pid 3678] close(4) = 0 [pid 3678] close(5) = -1 EBADF (Bad file descriptor) [pid 3678] close(6) = -1 EBADF (Bad file descriptor) [pid 3678] close(7) = -1 EBADF (Bad file descriptor) [pid 3678] close(8) = -1 EBADF (Bad file descriptor) [pid 3678] close(9) = -1 EBADF (Bad file descriptor) [pid 3678] close(10) = -1 EBADF (Bad file descriptor) [pid 3678] close(11) = -1 EBADF (Bad file descriptor) [pid 3678] close(12) = -1 EBADF (Bad file descriptor) [pid 3678] close(13) = -1 EBADF (Bad file descriptor) [pid 3678] close(14) = -1 EBADF (Bad file descriptor) [pid 3678] close(15) = -1 EBADF (Bad file descriptor) [pid 3678] close(16) = -1 EBADF (Bad file descriptor) [pid 3678] close(17) = -1 EBADF (Bad file descriptor) [pid 3678] close(18) = -1 EBADF (Bad file descriptor) [pid 3678] close(19) = -1 EBADF (Bad file descriptor) [pid 3678] close(20) = -1 EBADF (Bad file descriptor) [pid 3678] close(21) = -1 EBADF (Bad file descriptor) [pid 3678] close(22) = -1 EBADF (Bad file descriptor) [pid 3678] close(23) = -1 EBADF (Bad file descriptor) [pid 3678] close(24) = -1 EBADF (Bad file descriptor) [pid 3678] close(25) = -1 EBADF (Bad file descriptor) [pid 3678] close(26) = -1 EBADF (Bad file descriptor) [pid 3678] close(27) = -1 EBADF (Bad file descriptor) [pid 3678] close(28) = -1 EBADF (Bad file descriptor) [pid 3678] close(29) = -1 EBADF (Bad file descriptor) [pid 3678] exit_group(0) = ? [pid 3678] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=76, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./74/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./74/binderfs") = 0 [pid 3603] umount2("./74/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./74/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./74/cgroup") = 0 [pid 3603] umount2("./74/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./74/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./74/cgroup.net") = 0 [pid 3603] umount2("./74/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./74/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./74/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./74") = 0 [pid 3603] mkdir("./75", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 77 ./strace-static-x86_64: Process 3679 attached [pid 3679] chdir("./75") = 0 [pid 3679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3679] setpgid(0, 0) = 0 [pid 3679] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3679] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3679] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3679] write(3, "1000", 4) = 4 [pid 3679] close(3) = 0 [pid 3679] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3679] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3679] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3679] gettid() = 77 [pid 3679] process_vm_writev(77, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3679] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3679] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3679] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3679] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3679] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3679] close(3) = 0 [pid 3679] close(4) = 0 [pid 3679] close(5) = -1 EBADF (Bad file descriptor) [pid 3679] close(6) = -1 EBADF (Bad file descriptor) [pid 3679] close(7) = -1 EBADF (Bad file descriptor) [pid 3679] close(8) = -1 EBADF (Bad file descriptor) [pid 3679] close(9) = -1 EBADF (Bad file descriptor) [pid 3679] close(10) = -1 EBADF (Bad file descriptor) [pid 3679] close(11) = -1 EBADF (Bad file descriptor) [pid 3679] close(12) = -1 EBADF (Bad file descriptor) [pid 3679] close(13) = -1 EBADF (Bad file descriptor) [pid 3679] close(14) = -1 EBADF (Bad file descriptor) [pid 3679] close(15) = -1 EBADF (Bad file descriptor) [pid 3679] close(16) = -1 EBADF (Bad file descriptor) [pid 3679] close(17) = -1 EBADF (Bad file descriptor) [pid 3679] close(18) = -1 EBADF (Bad file descriptor) [pid 3679] close(19) = -1 EBADF (Bad file descriptor) [pid 3679] close(20) = -1 EBADF (Bad file descriptor) [pid 3679] close(21) = -1 EBADF (Bad file descriptor) [pid 3679] close(22) = -1 EBADF (Bad file descriptor) [pid 3679] close(23) = -1 EBADF (Bad file descriptor) [pid 3679] close(24) = -1 EBADF (Bad file descriptor) [pid 3679] close(25) = -1 EBADF (Bad file descriptor) [pid 3679] close(26) = -1 EBADF (Bad file descriptor) [pid 3679] close(27) = -1 EBADF (Bad file descriptor) [pid 3679] close(28) = -1 EBADF (Bad file descriptor) [pid 3679] close(29) = -1 EBADF (Bad file descriptor) [pid 3679] exit_group(0) = ? [pid 3679] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=77, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./75/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./75/binderfs") = 0 [pid 3603] umount2("./75/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./75/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./75/cgroup") = 0 [pid 3603] umount2("./75/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./75/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./75/cgroup.net") = 0 [pid 3603] umount2("./75/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./75/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./75/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./75") = 0 [pid 3603] mkdir("./76", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 78 ./strace-static-x86_64: Process 3680 attached [pid 3680] chdir("./76") = 0 [pid 3680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3680] setpgid(0, 0) = 0 [pid 3680] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3680] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3680] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3680] write(3, "1000", 4) = 4 [pid 3680] close(3) = 0 [pid 3680] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3680] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3680] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3680] gettid() = 78 [pid 3680] process_vm_writev(78, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3680] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3680] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3680] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3680] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3680] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3680] close(3) = 0 [pid 3680] close(4) = 0 [pid 3680] close(5) = -1 EBADF (Bad file descriptor) [pid 3680] close(6) = -1 EBADF (Bad file descriptor) [pid 3680] close(7) = -1 EBADF (Bad file descriptor) [pid 3680] close(8) = -1 EBADF (Bad file descriptor) [pid 3680] close(9) = -1 EBADF (Bad file descriptor) [pid 3680] close(10) = -1 EBADF (Bad file descriptor) [pid 3680] close(11) = -1 EBADF (Bad file descriptor) [pid 3680] close(12) = -1 EBADF (Bad file descriptor) [pid 3680] close(13) = -1 EBADF (Bad file descriptor) [pid 3680] close(14) = -1 EBADF (Bad file descriptor) [pid 3680] close(15) = -1 EBADF (Bad file descriptor) [pid 3680] close(16) = -1 EBADF (Bad file descriptor) [pid 3680] close(17) = -1 EBADF (Bad file descriptor) [pid 3680] close(18) = -1 EBADF (Bad file descriptor) [pid 3680] close(19) = -1 EBADF (Bad file descriptor) [pid 3680] close(20) = -1 EBADF (Bad file descriptor) [pid 3680] close(21) = -1 EBADF (Bad file descriptor) [pid 3680] close(22) = -1 EBADF (Bad file descriptor) [pid 3680] close(23) = -1 EBADF (Bad file descriptor) [pid 3680] close(24) = -1 EBADF (Bad file descriptor) [pid 3680] close(25) = -1 EBADF (Bad file descriptor) [pid 3680] close(26) = -1 EBADF (Bad file descriptor) [pid 3680] close(27) = -1 EBADF (Bad file descriptor) [pid 3680] close(28) = -1 EBADF (Bad file descriptor) [pid 3680] close(29) = -1 EBADF (Bad file descriptor) [pid 3680] exit_group(0) = ? [pid 3680] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=78, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./76/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./76/binderfs") = 0 [pid 3603] umount2("./76/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./76/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./76/cgroup") = 0 [pid 3603] umount2("./76/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./76/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./76/cgroup.net") = 0 [pid 3603] umount2("./76/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./76/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./76/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./76") = 0 [pid 3603] mkdir("./77", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3681 attached [pid 3681] chdir("./77" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 79 [pid 3681] <... chdir resumed>) = 0 [pid 3681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3681] setpgid(0, 0) = 0 [pid 3681] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3681] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3681] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3681] write(3, "1000", 4) = 4 [pid 3681] close(3) = 0 [pid 3681] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3681] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3681] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3681] gettid() = 79 [pid 3681] process_vm_writev(79, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3681] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3681] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3681] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3681] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3681] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3681] close(3) = 0 [pid 3681] close(4) = 0 [pid 3681] close(5) = -1 EBADF (Bad file descriptor) [pid 3681] close(6) = -1 EBADF (Bad file descriptor) [pid 3681] close(7) = -1 EBADF (Bad file descriptor) [pid 3681] close(8) = -1 EBADF (Bad file descriptor) [pid 3681] close(9) = -1 EBADF (Bad file descriptor) [pid 3681] close(10) = -1 EBADF (Bad file descriptor) [pid 3681] close(11) = -1 EBADF (Bad file descriptor) [pid 3681] close(12) = -1 EBADF (Bad file descriptor) [pid 3681] close(13) = -1 EBADF (Bad file descriptor) [pid 3681] close(14) = -1 EBADF (Bad file descriptor) [pid 3681] close(15) = -1 EBADF (Bad file descriptor) [pid 3681] close(16) = -1 EBADF (Bad file descriptor) [pid 3681] close(17) = -1 EBADF (Bad file descriptor) [pid 3681] close(18) = -1 EBADF (Bad file descriptor) [pid 3681] close(19) = -1 EBADF (Bad file descriptor) [pid 3681] close(20) = -1 EBADF (Bad file descriptor) [pid 3681] close(21) = -1 EBADF (Bad file descriptor) [pid 3681] close(22) = -1 EBADF (Bad file descriptor) [pid 3681] close(23) = -1 EBADF (Bad file descriptor) [pid 3681] close(24) = -1 EBADF (Bad file descriptor) [pid 3681] close(25) = -1 EBADF (Bad file descriptor) [pid 3681] close(26) = -1 EBADF (Bad file descriptor) [pid 3681] close(27) = -1 EBADF (Bad file descriptor) [pid 3681] close(28) = -1 EBADF (Bad file descriptor) [pid 3681] close(29) = -1 EBADF (Bad file descriptor) [pid 3681] exit_group(0) = ? [pid 3681] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=79, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./77/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./77/binderfs") = 0 [pid 3603] umount2("./77/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./77/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./77/cgroup") = 0 [pid 3603] umount2("./77/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./77/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./77/cgroup.net") = 0 [pid 3603] umount2("./77/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./77/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./77/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./77") = 0 [pid 3603] mkdir("./78", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3682 attached , child_tidptr=0x5555567b05d0) = 80 [pid 3682] chdir("./78") = 0 [pid 3682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3682] setpgid(0, 0) = 0 [pid 3682] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3682] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3682] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3682] write(3, "1000", 4) = 4 [pid 3682] close(3) = 0 [pid 3682] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3682] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3682] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3682] gettid() = 80 [pid 3682] process_vm_writev(80, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3682] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3682] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3682] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3682] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3682] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3682] close(3) = 0 [pid 3682] close(4) = 0 [pid 3682] close(5) = -1 EBADF (Bad file descriptor) [pid 3682] close(6) = -1 EBADF (Bad file descriptor) [pid 3682] close(7) = -1 EBADF (Bad file descriptor) [pid 3682] close(8) = -1 EBADF (Bad file descriptor) [pid 3682] close(9) = -1 EBADF (Bad file descriptor) [pid 3682] close(10) = -1 EBADF (Bad file descriptor) [pid 3682] close(11) = -1 EBADF (Bad file descriptor) [pid 3682] close(12) = -1 EBADF (Bad file descriptor) [pid 3682] close(13) = -1 EBADF (Bad file descriptor) [pid 3682] close(14) = -1 EBADF (Bad file descriptor) [pid 3682] close(15) = -1 EBADF (Bad file descriptor) [pid 3682] close(16) = -1 EBADF (Bad file descriptor) [pid 3682] close(17) = -1 EBADF (Bad file descriptor) [pid 3682] close(18) = -1 EBADF (Bad file descriptor) [pid 3682] close(19) = -1 EBADF (Bad file descriptor) [pid 3682] close(20) = -1 EBADF (Bad file descriptor) [pid 3682] close(21) = -1 EBADF (Bad file descriptor) [pid 3682] close(22) = -1 EBADF (Bad file descriptor) [pid 3682] close(23) = -1 EBADF (Bad file descriptor) [pid 3682] close(24) = -1 EBADF (Bad file descriptor) [pid 3682] close(25) = -1 EBADF (Bad file descriptor) [pid 3682] close(26) = -1 EBADF (Bad file descriptor) [pid 3682] close(27) = -1 EBADF (Bad file descriptor) [pid 3682] close(28) = -1 EBADF (Bad file descriptor) [pid 3682] close(29) = -1 EBADF (Bad file descriptor) [pid 3682] exit_group(0) = ? [pid 3682] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=80, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./78/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./78/binderfs") = 0 [pid 3603] umount2("./78/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./78/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./78/cgroup") = 0 [pid 3603] umount2("./78/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./78/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./78/cgroup.net") = 0 [pid 3603] umount2("./78/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./78/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./78/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./78") = 0 [pid 3603] mkdir("./79", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3683 attached , child_tidptr=0x5555567b05d0) = 81 [pid 3683] chdir("./79") = 0 [pid 3683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3683] setpgid(0, 0) = 0 [pid 3683] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3683] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3683] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3683] write(3, "1000", 4) = 4 [pid 3683] close(3) = 0 [pid 3683] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3683] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3683] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3683] gettid() = 81 [pid 3683] process_vm_writev(81, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3683] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3683] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3683] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3683] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3683] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3683] close(3) = 0 [pid 3683] close(4) = 0 [pid 3683] close(5) = -1 EBADF (Bad file descriptor) [pid 3683] close(6) = -1 EBADF (Bad file descriptor) [pid 3683] close(7) = -1 EBADF (Bad file descriptor) [pid 3683] close(8) = -1 EBADF (Bad file descriptor) [pid 3683] close(9) = -1 EBADF (Bad file descriptor) [pid 3683] close(10) = -1 EBADF (Bad file descriptor) [pid 3683] close(11) = -1 EBADF (Bad file descriptor) [pid 3683] close(12) = -1 EBADF (Bad file descriptor) [pid 3683] close(13) = -1 EBADF (Bad file descriptor) [pid 3683] close(14) = -1 EBADF (Bad file descriptor) [pid 3683] close(15) = -1 EBADF (Bad file descriptor) [pid 3683] close(16) = -1 EBADF (Bad file descriptor) [pid 3683] close(17) = -1 EBADF (Bad file descriptor) [pid 3683] close(18) = -1 EBADF (Bad file descriptor) [pid 3683] close(19) = -1 EBADF (Bad file descriptor) [pid 3683] close(20) = -1 EBADF (Bad file descriptor) [pid 3683] close(21) = -1 EBADF (Bad file descriptor) [pid 3683] close(22) = -1 EBADF (Bad file descriptor) [pid 3683] close(23) = -1 EBADF (Bad file descriptor) [pid 3683] close(24) = -1 EBADF (Bad file descriptor) [pid 3683] close(25) = -1 EBADF (Bad file descriptor) [pid 3683] close(26) = -1 EBADF (Bad file descriptor) [pid 3683] close(27) = -1 EBADF (Bad file descriptor) [pid 3683] close(28) = -1 EBADF (Bad file descriptor) [pid 3683] close(29) = -1 EBADF (Bad file descriptor) [pid 3683] exit_group(0) = ? [pid 3683] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=81, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./79/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./79/binderfs") = 0 [pid 3603] umount2("./79/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./79/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./79/cgroup") = 0 [pid 3603] umount2("./79/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./79/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./79/cgroup.net") = 0 [pid 3603] umount2("./79/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./79/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./79/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./79") = 0 [pid 3603] mkdir("./80", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3684 attached [pid 3684] chdir("./80" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 82 [pid 3684] <... chdir resumed>) = 0 [pid 3684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3684] setpgid(0, 0) = 0 [pid 3684] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3684] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3684] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3684] write(3, "1000", 4) = 4 [pid 3684] close(3) = 0 [pid 3684] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3684] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3684] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3684] gettid() = 82 [pid 3684] process_vm_writev(82, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3684] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3684] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3684] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3684] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3684] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3684] close(3) = 0 [pid 3684] close(4) = 0 [pid 3684] close(5) = -1 EBADF (Bad file descriptor) [pid 3684] close(6) = -1 EBADF (Bad file descriptor) [pid 3684] close(7) = -1 EBADF (Bad file descriptor) [pid 3684] close(8) = -1 EBADF (Bad file descriptor) [pid 3684] close(9) = -1 EBADF (Bad file descriptor) [pid 3684] close(10) = -1 EBADF (Bad file descriptor) [pid 3684] close(11) = -1 EBADF (Bad file descriptor) [pid 3684] close(12) = -1 EBADF (Bad file descriptor) [pid 3684] close(13) = -1 EBADF (Bad file descriptor) [pid 3684] close(14) = -1 EBADF (Bad file descriptor) [pid 3684] close(15) = -1 EBADF (Bad file descriptor) [pid 3684] close(16) = -1 EBADF (Bad file descriptor) [pid 3684] close(17) = -1 EBADF (Bad file descriptor) [pid 3684] close(18) = -1 EBADF (Bad file descriptor) [pid 3684] close(19) = -1 EBADF (Bad file descriptor) [pid 3684] close(20) = -1 EBADF (Bad file descriptor) [pid 3684] close(21) = -1 EBADF (Bad file descriptor) [pid 3684] close(22) = -1 EBADF (Bad file descriptor) [pid 3684] close(23) = -1 EBADF (Bad file descriptor) [pid 3684] close(24) = -1 EBADF (Bad file descriptor) [pid 3684] close(25) = -1 EBADF (Bad file descriptor) [pid 3684] close(26) = -1 EBADF (Bad file descriptor) [pid 3684] close(27) = -1 EBADF (Bad file descriptor) [pid 3684] close(28) = -1 EBADF (Bad file descriptor) [pid 3684] close(29) = -1 EBADF (Bad file descriptor) [pid 3684] exit_group(0) = ? [pid 3684] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=82, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./80/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./80/binderfs") = 0 [pid 3603] umount2("./80/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./80/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./80/cgroup") = 0 [pid 3603] umount2("./80/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./80/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./80/cgroup.net") = 0 [pid 3603] umount2("./80/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./80/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./80/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./80") = 0 [pid 3603] mkdir("./81", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3685 attached , child_tidptr=0x5555567b05d0) = 83 [pid 3685] chdir("./81") = 0 [pid 3685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3685] setpgid(0, 0) = 0 [pid 3685] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3685] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3685] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3685] write(3, "1000", 4) = 4 [pid 3685] close(3) = 0 [pid 3685] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3685] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3685] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3685] gettid() = 83 [pid 3685] process_vm_writev(83, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3685] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3685] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3685] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3685] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3685] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3685] close(3) = 0 [pid 3685] close(4) = 0 [pid 3685] close(5) = -1 EBADF (Bad file descriptor) [pid 3685] close(6) = -1 EBADF (Bad file descriptor) [pid 3685] close(7) = -1 EBADF (Bad file descriptor) [pid 3685] close(8) = -1 EBADF (Bad file descriptor) [pid 3685] close(9) = -1 EBADF (Bad file descriptor) [pid 3685] close(10) = -1 EBADF (Bad file descriptor) [pid 3685] close(11) = -1 EBADF (Bad file descriptor) [pid 3685] close(12) = -1 EBADF (Bad file descriptor) [pid 3685] close(13) = -1 EBADF (Bad file descriptor) [pid 3685] close(14) = -1 EBADF (Bad file descriptor) [pid 3685] close(15) = -1 EBADF (Bad file descriptor) [pid 3685] close(16) = -1 EBADF (Bad file descriptor) [pid 3685] close(17) = -1 EBADF (Bad file descriptor) [pid 3685] close(18) = -1 EBADF (Bad file descriptor) [pid 3685] close(19) = -1 EBADF (Bad file descriptor) [pid 3685] close(20) = -1 EBADF (Bad file descriptor) [pid 3685] close(21) = -1 EBADF (Bad file descriptor) [pid 3685] close(22) = -1 EBADF (Bad file descriptor) [pid 3685] close(23) = -1 EBADF (Bad file descriptor) [pid 3685] close(24) = -1 EBADF (Bad file descriptor) [pid 3685] close(25) = -1 EBADF (Bad file descriptor) [pid 3685] close(26) = -1 EBADF (Bad file descriptor) [pid 3685] close(27) = -1 EBADF (Bad file descriptor) [pid 3685] close(28) = -1 EBADF (Bad file descriptor) [pid 3685] close(29) = -1 EBADF (Bad file descriptor) [pid 3685] exit_group(0) = ? [pid 3685] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=83, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./81/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./81/binderfs") = 0 [pid 3603] umount2("./81/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./81/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./81/cgroup") = 0 [pid 3603] umount2("./81/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./81/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./81/cgroup.net") = 0 [pid 3603] umount2("./81/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./81/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./81/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./81") = 0 [pid 3603] mkdir("./82", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3686 attached , child_tidptr=0x5555567b05d0) = 84 [pid 3686] chdir("./82") = 0 [pid 3686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3686] setpgid(0, 0) = 0 [pid 3686] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3686] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3686] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3686] write(3, "1000", 4) = 4 [pid 3686] close(3) = 0 [pid 3686] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3686] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3686] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3686] gettid() = 84 [pid 3686] process_vm_writev(84, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3686] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3686] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3686] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3686] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3686] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3686] close(3) = 0 [pid 3686] close(4) = 0 [pid 3686] close(5) = -1 EBADF (Bad file descriptor) [pid 3686] close(6) = -1 EBADF (Bad file descriptor) [pid 3686] close(7) = -1 EBADF (Bad file descriptor) [pid 3686] close(8) = -1 EBADF (Bad file descriptor) [pid 3686] close(9) = -1 EBADF (Bad file descriptor) [pid 3686] close(10) = -1 EBADF (Bad file descriptor) [pid 3686] close(11) = -1 EBADF (Bad file descriptor) [pid 3686] close(12) = -1 EBADF (Bad file descriptor) [pid 3686] close(13) = -1 EBADF (Bad file descriptor) [pid 3686] close(14) = -1 EBADF (Bad file descriptor) [pid 3686] close(15) = -1 EBADF (Bad file descriptor) [pid 3686] close(16) = -1 EBADF (Bad file descriptor) [pid 3686] close(17) = -1 EBADF (Bad file descriptor) [pid 3686] close(18) = -1 EBADF (Bad file descriptor) [pid 3686] close(19) = -1 EBADF (Bad file descriptor) [pid 3686] close(20) = -1 EBADF (Bad file descriptor) [pid 3686] close(21) = -1 EBADF (Bad file descriptor) [pid 3686] close(22) = -1 EBADF (Bad file descriptor) [pid 3686] close(23) = -1 EBADF (Bad file descriptor) [pid 3686] close(24) = -1 EBADF (Bad file descriptor) [pid 3686] close(25) = -1 EBADF (Bad file descriptor) [pid 3686] close(26) = -1 EBADF (Bad file descriptor) [pid 3686] close(27) = -1 EBADF (Bad file descriptor) [pid 3686] close(28) = -1 EBADF (Bad file descriptor) [pid 3686] close(29) = -1 EBADF (Bad file descriptor) [pid 3686] exit_group(0) = ? [pid 3686] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=84, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./82/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./82/binderfs") = 0 [pid 3603] umount2("./82/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./82/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./82/cgroup") = 0 [pid 3603] umount2("./82/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./82/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./82/cgroup.net") = 0 [pid 3603] umount2("./82/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./82/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./82/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./82") = 0 [pid 3603] mkdir("./83", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3687 attached [pid 3687] chdir("./83" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 85 [pid 3687] <... chdir resumed>) = 0 [pid 3687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3687] setpgid(0, 0) = 0 [pid 3687] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3687] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3687] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3687] write(3, "1000", 4) = 4 [pid 3687] close(3) = 0 [pid 3687] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3687] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3687] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3687] gettid() = 85 [pid 3687] process_vm_writev(85, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3687] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3687] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3687] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3687] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3687] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3687] close(3) = 0 [pid 3687] close(4) = 0 [pid 3687] close(5) = -1 EBADF (Bad file descriptor) [pid 3687] close(6) = -1 EBADF (Bad file descriptor) [pid 3687] close(7) = -1 EBADF (Bad file descriptor) [pid 3687] close(8) = -1 EBADF (Bad file descriptor) [pid 3687] close(9) = -1 EBADF (Bad file descriptor) [pid 3687] close(10) = -1 EBADF (Bad file descriptor) [pid 3687] close(11) = -1 EBADF (Bad file descriptor) [pid 3687] close(12) = -1 EBADF (Bad file descriptor) [pid 3687] close(13) = -1 EBADF (Bad file descriptor) [pid 3687] close(14) = -1 EBADF (Bad file descriptor) [pid 3687] close(15) = -1 EBADF (Bad file descriptor) [pid 3687] close(16) = -1 EBADF (Bad file descriptor) [pid 3687] close(17) = -1 EBADF (Bad file descriptor) [pid 3687] close(18) = -1 EBADF (Bad file descriptor) [pid 3687] close(19) = -1 EBADF (Bad file descriptor) [pid 3687] close(20) = -1 EBADF (Bad file descriptor) [pid 3687] close(21) = -1 EBADF (Bad file descriptor) [pid 3687] close(22) = -1 EBADF (Bad file descriptor) [pid 3687] close(23) = -1 EBADF (Bad file descriptor) [pid 3687] close(24) = -1 EBADF (Bad file descriptor) [pid 3687] close(25) = -1 EBADF (Bad file descriptor) [pid 3687] close(26) = -1 EBADF (Bad file descriptor) [pid 3687] close(27) = -1 EBADF (Bad file descriptor) [pid 3687] close(28) = -1 EBADF (Bad file descriptor) [pid 3687] close(29) = -1 EBADF (Bad file descriptor) [pid 3687] exit_group(0) = ? [pid 3687] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=85, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 3603] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./83/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./83/binderfs") = 0 [pid 3603] umount2("./83/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./83/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./83/cgroup") = 0 [pid 3603] umount2("./83/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./83/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./83/cgroup.net") = 0 [pid 3603] umount2("./83/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./83/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./83/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./83") = 0 [pid 3603] mkdir("./84", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3688 attached , child_tidptr=0x5555567b05d0) = 86 [pid 3688] chdir("./84") = 0 [pid 3688] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3688] setpgid(0, 0) = 0 [pid 3688] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3688] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3688] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3688] write(3, "1000", 4) = 4 [pid 3688] close(3) = 0 [pid 3688] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3688] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3688] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3688] gettid() = 86 [pid 3688] process_vm_writev(86, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3688] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3688] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3688] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3688] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3688] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3688] close(3) = 0 [pid 3688] close(4) = 0 [pid 3688] close(5) = -1 EBADF (Bad file descriptor) [pid 3688] close(6) = -1 EBADF (Bad file descriptor) [pid 3688] close(7) = -1 EBADF (Bad file descriptor) [pid 3688] close(8) = -1 EBADF (Bad file descriptor) [pid 3688] close(9) = -1 EBADF (Bad file descriptor) [pid 3688] close(10) = -1 EBADF (Bad file descriptor) [pid 3688] close(11) = -1 EBADF (Bad file descriptor) [pid 3688] close(12) = -1 EBADF (Bad file descriptor) [pid 3688] close(13) = -1 EBADF (Bad file descriptor) [pid 3688] close(14) = -1 EBADF (Bad file descriptor) [pid 3688] close(15) = -1 EBADF (Bad file descriptor) [pid 3688] close(16) = -1 EBADF (Bad file descriptor) [pid 3688] close(17) = -1 EBADF (Bad file descriptor) [pid 3688] close(18) = -1 EBADF (Bad file descriptor) [pid 3688] close(19) = -1 EBADF (Bad file descriptor) [pid 3688] close(20) = -1 EBADF (Bad file descriptor) [pid 3688] close(21) = -1 EBADF (Bad file descriptor) [pid 3688] close(22) = -1 EBADF (Bad file descriptor) [pid 3688] close(23) = -1 EBADF (Bad file descriptor) [pid 3688] close(24) = -1 EBADF (Bad file descriptor) [pid 3688] close(25) = -1 EBADF (Bad file descriptor) [pid 3688] close(26) = -1 EBADF (Bad file descriptor) [pid 3688] close(27) = -1 EBADF (Bad file descriptor) [pid 3688] close(28) = -1 EBADF (Bad file descriptor) [pid 3688] close(29) = -1 EBADF (Bad file descriptor) [pid 3688] exit_group(0) = ? [pid 3688] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=86, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./84/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./84/binderfs") = 0 [pid 3603] umount2("./84/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./84/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./84/cgroup") = 0 [pid 3603] umount2("./84/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./84/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./84/cgroup.net") = 0 [pid 3603] umount2("./84/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./84/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./84/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./84") = 0 [pid 3603] mkdir("./85", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3689 attached , child_tidptr=0x5555567b05d0) = 87 [pid 3689] chdir("./85") = 0 [pid 3689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3689] setpgid(0, 0) = 0 [pid 3689] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3689] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3689] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3689] write(3, "1000", 4) = 4 [pid 3689] close(3) = 0 [pid 3689] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3689] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3689] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3689] gettid() = 87 [pid 3689] process_vm_writev(87, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3689] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3689] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3689] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3689] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3689] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3689] close(3) = 0 [pid 3689] close(4) = 0 [pid 3689] close(5) = -1 EBADF (Bad file descriptor) [pid 3689] close(6) = -1 EBADF (Bad file descriptor) [pid 3689] close(7) = -1 EBADF (Bad file descriptor) [pid 3689] close(8) = -1 EBADF (Bad file descriptor) [pid 3689] close(9) = -1 EBADF (Bad file descriptor) [pid 3689] close(10) = -1 EBADF (Bad file descriptor) [pid 3689] close(11) = -1 EBADF (Bad file descriptor) [pid 3689] close(12) = -1 EBADF (Bad file descriptor) [pid 3689] close(13) = -1 EBADF (Bad file descriptor) [pid 3689] close(14) = -1 EBADF (Bad file descriptor) [pid 3689] close(15) = -1 EBADF (Bad file descriptor) [pid 3689] close(16) = -1 EBADF (Bad file descriptor) [pid 3689] close(17) = -1 EBADF (Bad file descriptor) [pid 3689] close(18) = -1 EBADF (Bad file descriptor) [pid 3689] close(19) = -1 EBADF (Bad file descriptor) [pid 3689] close(20) = -1 EBADF (Bad file descriptor) [pid 3689] close(21) = -1 EBADF (Bad file descriptor) [pid 3689] close(22) = -1 EBADF (Bad file descriptor) [pid 3689] close(23) = -1 EBADF (Bad file descriptor) [pid 3689] close(24) = -1 EBADF (Bad file descriptor) [pid 3689] close(25) = -1 EBADF (Bad file descriptor) [pid 3689] close(26) = -1 EBADF (Bad file descriptor) [pid 3689] close(27) = -1 EBADF (Bad file descriptor) [pid 3689] close(28) = -1 EBADF (Bad file descriptor) [pid 3689] close(29) = -1 EBADF (Bad file descriptor) [pid 3689] exit_group(0) = ? [pid 3689] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=87, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./85/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./85/binderfs") = 0 [pid 3603] umount2("./85/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./85/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./85/cgroup") = 0 [pid 3603] umount2("./85/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./85/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./85/cgroup.net") = 0 [pid 3603] umount2("./85/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./85/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./85/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./85") = 0 [pid 3603] mkdir("./86", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3690 attached , child_tidptr=0x5555567b05d0) = 88 [pid 3690] chdir("./86") = 0 [pid 3690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3690] setpgid(0, 0) = 0 [pid 3690] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3690] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3690] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3690] write(3, "1000", 4) = 4 [pid 3690] close(3) = 0 [pid 3690] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3690] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3690] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3690] gettid() = 88 [pid 3690] process_vm_writev(88, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3690] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3690] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3690] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3690] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3690] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3690] close(3) = 0 [pid 3690] close(4) = 0 [pid 3690] close(5) = -1 EBADF (Bad file descriptor) [pid 3690] close(6) = -1 EBADF (Bad file descriptor) [pid 3690] close(7) = -1 EBADF (Bad file descriptor) [pid 3690] close(8) = -1 EBADF (Bad file descriptor) [pid 3690] close(9) = -1 EBADF (Bad file descriptor) [pid 3690] close(10) = -1 EBADF (Bad file descriptor) [pid 3690] close(11) = -1 EBADF (Bad file descriptor) [pid 3690] close(12) = -1 EBADF (Bad file descriptor) [pid 3690] close(13) = -1 EBADF (Bad file descriptor) [pid 3690] close(14) = -1 EBADF (Bad file descriptor) [pid 3690] close(15) = -1 EBADF (Bad file descriptor) [pid 3690] close(16) = -1 EBADF (Bad file descriptor) [pid 3690] close(17) = -1 EBADF (Bad file descriptor) [pid 3690] close(18) = -1 EBADF (Bad file descriptor) [pid 3690] close(19) = -1 EBADF (Bad file descriptor) [pid 3690] close(20) = -1 EBADF (Bad file descriptor) [pid 3690] close(21) = -1 EBADF (Bad file descriptor) [pid 3690] close(22) = -1 EBADF (Bad file descriptor) [pid 3690] close(23) = -1 EBADF (Bad file descriptor) [pid 3690] close(24) = -1 EBADF (Bad file descriptor) [pid 3690] close(25) = -1 EBADF (Bad file descriptor) [pid 3690] close(26) = -1 EBADF (Bad file descriptor) [pid 3690] close(27) = -1 EBADF (Bad file descriptor) [pid 3690] close(28) = -1 EBADF (Bad file descriptor) [pid 3690] close(29) = -1 EBADF (Bad file descriptor) [pid 3690] exit_group(0) = ? [pid 3690] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=88, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./86/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./86/binderfs") = 0 [pid 3603] umount2("./86/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./86/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./86/cgroup") = 0 [pid 3603] umount2("./86/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./86/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./86/cgroup.net") = 0 [pid 3603] umount2("./86/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./86/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./86/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./86") = 0 [pid 3603] mkdir("./87", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3691 attached , child_tidptr=0x5555567b05d0) = 89 [pid 3691] chdir("./87") = 0 [pid 3691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3691] setpgid(0, 0) = 0 [pid 3691] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3691] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3691] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3691] write(3, "1000", 4) = 4 [pid 3691] close(3) = 0 [pid 3691] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3691] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3691] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3691] gettid() = 89 [pid 3691] process_vm_writev(89, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3691] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3691] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3691] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3691] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3691] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3691] close(3) = 0 [pid 3691] close(4) = 0 [pid 3691] close(5) = -1 EBADF (Bad file descriptor) [pid 3691] close(6) = -1 EBADF (Bad file descriptor) [pid 3691] close(7) = -1 EBADF (Bad file descriptor) [pid 3691] close(8) = -1 EBADF (Bad file descriptor) [pid 3691] close(9) = -1 EBADF (Bad file descriptor) [pid 3691] close(10) = -1 EBADF (Bad file descriptor) [pid 3691] close(11) = -1 EBADF (Bad file descriptor) [pid 3691] close(12) = -1 EBADF (Bad file descriptor) [pid 3691] close(13) = -1 EBADF (Bad file descriptor) [pid 3691] close(14) = -1 EBADF (Bad file descriptor) [pid 3691] close(15) = -1 EBADF (Bad file descriptor) [pid 3691] close(16) = -1 EBADF (Bad file descriptor) [pid 3691] close(17) = -1 EBADF (Bad file descriptor) [pid 3691] close(18) = -1 EBADF (Bad file descriptor) [pid 3691] close(19) = -1 EBADF (Bad file descriptor) [pid 3691] close(20) = -1 EBADF (Bad file descriptor) [pid 3691] close(21) = -1 EBADF (Bad file descriptor) [pid 3691] close(22) = -1 EBADF (Bad file descriptor) [pid 3691] close(23) = -1 EBADF (Bad file descriptor) [pid 3691] close(24) = -1 EBADF (Bad file descriptor) [pid 3691] close(25) = -1 EBADF (Bad file descriptor) [pid 3691] close(26) = -1 EBADF (Bad file descriptor) [pid 3691] close(27) = -1 EBADF (Bad file descriptor) [pid 3691] close(28) = -1 EBADF (Bad file descriptor) [pid 3691] close(29) = -1 EBADF (Bad file descriptor) [pid 3691] exit_group(0) = ? [pid 3691] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=89, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./87/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./87/binderfs") = 0 [pid 3603] umount2("./87/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./87/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./87/cgroup") = 0 [pid 3603] umount2("./87/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./87/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./87/cgroup.net") = 0 [pid 3603] umount2("./87/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./87/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./87/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./87") = 0 [pid 3603] mkdir("./88", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3692 attached , child_tidptr=0x5555567b05d0) = 90 [pid 3692] chdir("./88") = 0 [pid 3692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3692] setpgid(0, 0) = 0 [pid 3692] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3692] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3692] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3692] write(3, "1000", 4) = 4 [pid 3692] close(3) = 0 [pid 3692] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3692] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3692] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3692] gettid() = 90 [pid 3692] process_vm_writev(90, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3692] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3692] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3692] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3692] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3692] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3692] close(3) = 0 [pid 3692] close(4) = 0 [pid 3692] close(5) = -1 EBADF (Bad file descriptor) [pid 3692] close(6) = -1 EBADF (Bad file descriptor) [pid 3692] close(7) = -1 EBADF (Bad file descriptor) [pid 3692] close(8) = -1 EBADF (Bad file descriptor) [pid 3692] close(9) = -1 EBADF (Bad file descriptor) [pid 3692] close(10) = -1 EBADF (Bad file descriptor) [pid 3692] close(11) = -1 EBADF (Bad file descriptor) [pid 3692] close(12) = -1 EBADF (Bad file descriptor) [pid 3692] close(13) = -1 EBADF (Bad file descriptor) [pid 3692] close(14) = -1 EBADF (Bad file descriptor) [pid 3692] close(15) = -1 EBADF (Bad file descriptor) [pid 3692] close(16) = -1 EBADF (Bad file descriptor) [pid 3692] close(17) = -1 EBADF (Bad file descriptor) [pid 3692] close(18) = -1 EBADF (Bad file descriptor) [pid 3692] close(19) = -1 EBADF (Bad file descriptor) [pid 3692] close(20) = -1 EBADF (Bad file descriptor) [pid 3692] close(21) = -1 EBADF (Bad file descriptor) [pid 3692] close(22) = -1 EBADF (Bad file descriptor) [pid 3692] close(23) = -1 EBADF (Bad file descriptor) [pid 3692] close(24) = -1 EBADF (Bad file descriptor) [pid 3692] close(25) = -1 EBADF (Bad file descriptor) [pid 3692] close(26) = -1 EBADF (Bad file descriptor) [pid 3692] close(27) = -1 EBADF (Bad file descriptor) [pid 3692] close(28) = -1 EBADF (Bad file descriptor) [pid 3692] close(29) = -1 EBADF (Bad file descriptor) [pid 3692] exit_group(0) = ? [pid 3692] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=90, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./88/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./88/binderfs") = 0 [pid 3603] umount2("./88/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./88/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./88/cgroup") = 0 [pid 3603] umount2("./88/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./88/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./88/cgroup.net") = 0 [pid 3603] umount2("./88/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./88/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./88/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./88") = 0 [pid 3603] mkdir("./89", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3693 attached [pid 3693] chdir("./89" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 91 [pid 3693] <... chdir resumed>) = 0 [pid 3693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3693] setpgid(0, 0) = 0 [pid 3693] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3693] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3693] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3693] write(3, "1000", 4) = 4 [pid 3693] close(3) = 0 [pid 3693] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3693] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3693] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3693] gettid() = 91 [pid 3693] process_vm_writev(91, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3693] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3693] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3693] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3693] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3693] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3693] close(3) = 0 [pid 3693] close(4) = 0 [pid 3693] close(5) = -1 EBADF (Bad file descriptor) [pid 3693] close(6) = -1 EBADF (Bad file descriptor) [pid 3693] close(7) = -1 EBADF (Bad file descriptor) [pid 3693] close(8) = -1 EBADF (Bad file descriptor) [pid 3693] close(9) = -1 EBADF (Bad file descriptor) [pid 3693] close(10) = -1 EBADF (Bad file descriptor) [pid 3693] close(11) = -1 EBADF (Bad file descriptor) [pid 3693] close(12) = -1 EBADF (Bad file descriptor) [pid 3693] close(13) = -1 EBADF (Bad file descriptor) [pid 3693] close(14) = -1 EBADF (Bad file descriptor) [pid 3693] close(15) = -1 EBADF (Bad file descriptor) [pid 3693] close(16) = -1 EBADF (Bad file descriptor) [pid 3693] close(17) = -1 EBADF (Bad file descriptor) [pid 3693] close(18) = -1 EBADF (Bad file descriptor) [pid 3693] close(19) = -1 EBADF (Bad file descriptor) [pid 3693] close(20) = -1 EBADF (Bad file descriptor) [pid 3693] close(21) = -1 EBADF (Bad file descriptor) [pid 3693] close(22) = -1 EBADF (Bad file descriptor) [pid 3693] close(23) = -1 EBADF (Bad file descriptor) [pid 3693] close(24) = -1 EBADF (Bad file descriptor) [pid 3693] close(25) = -1 EBADF (Bad file descriptor) [pid 3693] close(26) = -1 EBADF (Bad file descriptor) [pid 3693] close(27) = -1 EBADF (Bad file descriptor) [pid 3693] close(28) = -1 EBADF (Bad file descriptor) [pid 3693] close(29) = -1 EBADF (Bad file descriptor) [pid 3693] exit_group(0) = ? [pid 3693] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=91, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./89/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./89/binderfs") = 0 [pid 3603] umount2("./89/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./89/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./89/cgroup") = 0 [pid 3603] umount2("./89/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./89/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./89/cgroup.net") = 0 [pid 3603] umount2("./89/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./89/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./89/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./89") = 0 [pid 3603] mkdir("./90", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3694 attached , child_tidptr=0x5555567b05d0) = 92 [pid 3694] chdir("./90") = 0 [pid 3694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3694] setpgid(0, 0) = 0 [pid 3694] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3694] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3694] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3694] write(3, "1000", 4) = 4 [pid 3694] close(3) = 0 [pid 3694] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3694] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3694] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3694] gettid() = 92 [pid 3694] process_vm_writev(92, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3694] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3694] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3694] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3694] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3694] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3694] close(3) = 0 [pid 3694] close(4) = 0 [pid 3694] close(5) = -1 EBADF (Bad file descriptor) [pid 3694] close(6) = -1 EBADF (Bad file descriptor) [pid 3694] close(7) = -1 EBADF (Bad file descriptor) [pid 3694] close(8) = -1 EBADF (Bad file descriptor) [pid 3694] close(9) = -1 EBADF (Bad file descriptor) [pid 3694] close(10) = -1 EBADF (Bad file descriptor) [pid 3694] close(11) = -1 EBADF (Bad file descriptor) [pid 3694] close(12) = -1 EBADF (Bad file descriptor) [pid 3694] close(13) = -1 EBADF (Bad file descriptor) [pid 3694] close(14) = -1 EBADF (Bad file descriptor) [pid 3694] close(15) = -1 EBADF (Bad file descriptor) [pid 3694] close(16) = -1 EBADF (Bad file descriptor) [pid 3694] close(17) = -1 EBADF (Bad file descriptor) [pid 3694] close(18) = -1 EBADF (Bad file descriptor) [pid 3694] close(19) = -1 EBADF (Bad file descriptor) [pid 3694] close(20) = -1 EBADF (Bad file descriptor) [pid 3694] close(21) = -1 EBADF (Bad file descriptor) [pid 3694] close(22) = -1 EBADF (Bad file descriptor) [pid 3694] close(23) = -1 EBADF (Bad file descriptor) [pid 3694] close(24) = -1 EBADF (Bad file descriptor) [pid 3694] close(25) = -1 EBADF (Bad file descriptor) [pid 3694] close(26) = -1 EBADF (Bad file descriptor) [pid 3694] close(27) = -1 EBADF (Bad file descriptor) [pid 3694] close(28) = -1 EBADF (Bad file descriptor) [pid 3694] close(29) = -1 EBADF (Bad file descriptor) [pid 3694] exit_group(0) = ? [pid 3694] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=92, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./90/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./90/binderfs") = 0 [pid 3603] umount2("./90/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./90/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./90/cgroup") = 0 [pid 3603] umount2("./90/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./90/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./90/cgroup.net") = 0 [pid 3603] umount2("./90/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./90/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./90/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./90") = 0 [pid 3603] mkdir("./91", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3695 attached , child_tidptr=0x5555567b05d0) = 93 [pid 3695] chdir("./91") = 0 [pid 3695] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3695] setpgid(0, 0) = 0 [pid 3695] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3695] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3695] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3695] write(3, "1000", 4) = 4 [pid 3695] close(3) = 0 [pid 3695] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3695] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3695] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3695] gettid() = 93 [pid 3695] process_vm_writev(93, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3695] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3695] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3695] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3695] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3695] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3695] close(3) = 0 [pid 3695] close(4) = 0 [pid 3695] close(5) = -1 EBADF (Bad file descriptor) [pid 3695] close(6) = -1 EBADF (Bad file descriptor) [pid 3695] close(7) = -1 EBADF (Bad file descriptor) [pid 3695] close(8) = -1 EBADF (Bad file descriptor) [pid 3695] close(9) = -1 EBADF (Bad file descriptor) [pid 3695] close(10) = -1 EBADF (Bad file descriptor) [pid 3695] close(11) = -1 EBADF (Bad file descriptor) [pid 3695] close(12) = -1 EBADF (Bad file descriptor) [pid 3695] close(13) = -1 EBADF (Bad file descriptor) [pid 3695] close(14) = -1 EBADF (Bad file descriptor) [pid 3695] close(15) = -1 EBADF (Bad file descriptor) [pid 3695] close(16) = -1 EBADF (Bad file descriptor) [pid 3695] close(17) = -1 EBADF (Bad file descriptor) [pid 3695] close(18) = -1 EBADF (Bad file descriptor) [pid 3695] close(19) = -1 EBADF (Bad file descriptor) [pid 3695] close(20) = -1 EBADF (Bad file descriptor) [pid 3695] close(21) = -1 EBADF (Bad file descriptor) [pid 3695] close(22) = -1 EBADF (Bad file descriptor) [pid 3695] close(23) = -1 EBADF (Bad file descriptor) [pid 3695] close(24) = -1 EBADF (Bad file descriptor) [pid 3695] close(25) = -1 EBADF (Bad file descriptor) [pid 3695] close(26) = -1 EBADF (Bad file descriptor) [pid 3695] close(27) = -1 EBADF (Bad file descriptor) [pid 3695] close(28) = -1 EBADF (Bad file descriptor) [pid 3695] close(29) = -1 EBADF (Bad file descriptor) [pid 3695] exit_group(0) = ? [pid 3695] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=93, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./91/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./91/binderfs") = 0 [pid 3603] umount2("./91/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./91/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./91/cgroup") = 0 [pid 3603] umount2("./91/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./91/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./91/cgroup.net") = 0 [pid 3603] umount2("./91/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./91/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./91/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./91") = 0 [pid 3603] mkdir("./92", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3696 attached , child_tidptr=0x5555567b05d0) = 94 [pid 3696] chdir("./92") = 0 [pid 3696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3696] setpgid(0, 0) = 0 [pid 3696] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3696] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3696] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3696] write(3, "1000", 4) = 4 [pid 3696] close(3) = 0 [pid 3696] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3696] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3696] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3696] gettid() = 94 [pid 3696] process_vm_writev(94, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3696] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3696] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3696] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3696] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3696] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3696] close(3) = 0 [pid 3696] close(4) = 0 [pid 3696] close(5) = -1 EBADF (Bad file descriptor) [pid 3696] close(6) = -1 EBADF (Bad file descriptor) [pid 3696] close(7) = -1 EBADF (Bad file descriptor) [pid 3696] close(8) = -1 EBADF (Bad file descriptor) [pid 3696] close(9) = -1 EBADF (Bad file descriptor) [pid 3696] close(10) = -1 EBADF (Bad file descriptor) [pid 3696] close(11) = -1 EBADF (Bad file descriptor) [pid 3696] close(12) = -1 EBADF (Bad file descriptor) [pid 3696] close(13) = -1 EBADF (Bad file descriptor) [pid 3696] close(14) = -1 EBADF (Bad file descriptor) [pid 3696] close(15) = -1 EBADF (Bad file descriptor) [pid 3696] close(16) = -1 EBADF (Bad file descriptor) [pid 3696] close(17) = -1 EBADF (Bad file descriptor) [pid 3696] close(18) = -1 EBADF (Bad file descriptor) [pid 3696] close(19) = -1 EBADF (Bad file descriptor) [pid 3696] close(20) = -1 EBADF (Bad file descriptor) [pid 3696] close(21) = -1 EBADF (Bad file descriptor) [pid 3696] close(22) = -1 EBADF (Bad file descriptor) [pid 3696] close(23) = -1 EBADF (Bad file descriptor) [pid 3696] close(24) = -1 EBADF (Bad file descriptor) [pid 3696] close(25) = -1 EBADF (Bad file descriptor) [pid 3696] close(26) = -1 EBADF (Bad file descriptor) [pid 3696] close(27) = -1 EBADF (Bad file descriptor) [pid 3696] close(28) = -1 EBADF (Bad file descriptor) [pid 3696] close(29) = -1 EBADF (Bad file descriptor) [pid 3696] exit_group(0) = ? [pid 3696] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=94, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./92/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./92/binderfs") = 0 [pid 3603] umount2("./92/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./92/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./92/cgroup") = 0 [pid 3603] umount2("./92/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./92/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./92/cgroup.net") = 0 [pid 3603] umount2("./92/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./92/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./92/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./92") = 0 [pid 3603] mkdir("./93", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3697 attached , child_tidptr=0x5555567b05d0) = 95 [pid 3697] chdir("./93") = 0 [pid 3697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3697] setpgid(0, 0) = 0 [pid 3697] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3697] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3697] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3697] write(3, "1000", 4) = 4 [pid 3697] close(3) = 0 [pid 3697] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3697] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3697] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3697] gettid() = 95 [pid 3697] process_vm_writev(95, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3697] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3697] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3697] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3697] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3697] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3697] close(3) = 0 [pid 3697] close(4) = 0 [pid 3697] close(5) = -1 EBADF (Bad file descriptor) [pid 3697] close(6) = -1 EBADF (Bad file descriptor) [pid 3697] close(7) = -1 EBADF (Bad file descriptor) [pid 3697] close(8) = -1 EBADF (Bad file descriptor) [pid 3697] close(9) = -1 EBADF (Bad file descriptor) [pid 3697] close(10) = -1 EBADF (Bad file descriptor) [pid 3697] close(11) = -1 EBADF (Bad file descriptor) [pid 3697] close(12) = -1 EBADF (Bad file descriptor) [pid 3697] close(13) = -1 EBADF (Bad file descriptor) [pid 3697] close(14) = -1 EBADF (Bad file descriptor) [pid 3697] close(15) = -1 EBADF (Bad file descriptor) [pid 3697] close(16) = -1 EBADF (Bad file descriptor) [pid 3697] close(17) = -1 EBADF (Bad file descriptor) [pid 3697] close(18) = -1 EBADF (Bad file descriptor) [pid 3697] close(19) = -1 EBADF (Bad file descriptor) [pid 3697] close(20) = -1 EBADF (Bad file descriptor) [pid 3697] close(21) = -1 EBADF (Bad file descriptor) [pid 3697] close(22) = -1 EBADF (Bad file descriptor) [pid 3697] close(23) = -1 EBADF (Bad file descriptor) [pid 3697] close(24) = -1 EBADF (Bad file descriptor) [pid 3697] close(25) = -1 EBADF (Bad file descriptor) [pid 3697] close(26) = -1 EBADF (Bad file descriptor) [pid 3697] close(27) = -1 EBADF (Bad file descriptor) [pid 3697] close(28) = -1 EBADF (Bad file descriptor) [pid 3697] close(29) = -1 EBADF (Bad file descriptor) [pid 3697] exit_group(0) = ? [pid 3697] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=95, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./93/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./93/binderfs") = 0 [pid 3603] umount2("./93/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./93/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./93/cgroup") = 0 [pid 3603] umount2("./93/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./93/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./93/cgroup.net") = 0 [pid 3603] umount2("./93/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./93/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./93/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./93") = 0 [pid 3603] mkdir("./94", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 96 ./strace-static-x86_64: Process 3698 attached [pid 3698] chdir("./94") = 0 [pid 3698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3698] setpgid(0, 0) = 0 [pid 3698] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3698] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3698] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3698] write(3, "1000", 4) = 4 [pid 3698] close(3) = 0 [pid 3698] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3698] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3698] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3698] gettid() = 96 [pid 3698] process_vm_writev(96, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3698] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3698] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3698] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3698] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3698] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3698] close(3) = 0 [pid 3698] close(4) = 0 [pid 3698] close(5) = -1 EBADF (Bad file descriptor) [pid 3698] close(6) = -1 EBADF (Bad file descriptor) [pid 3698] close(7) = -1 EBADF (Bad file descriptor) [pid 3698] close(8) = -1 EBADF (Bad file descriptor) [pid 3698] close(9) = -1 EBADF (Bad file descriptor) [pid 3698] close(10) = -1 EBADF (Bad file descriptor) [pid 3698] close(11) = -1 EBADF (Bad file descriptor) [pid 3698] close(12) = -1 EBADF (Bad file descriptor) [pid 3698] close(13) = -1 EBADF (Bad file descriptor) [pid 3698] close(14) = -1 EBADF (Bad file descriptor) [pid 3698] close(15) = -1 EBADF (Bad file descriptor) [pid 3698] close(16) = -1 EBADF (Bad file descriptor) [pid 3698] close(17) = -1 EBADF (Bad file descriptor) [pid 3698] close(18) = -1 EBADF (Bad file descriptor) [pid 3698] close(19) = -1 EBADF (Bad file descriptor) [pid 3698] close(20) = -1 EBADF (Bad file descriptor) [pid 3698] close(21) = -1 EBADF (Bad file descriptor) [pid 3698] close(22) = -1 EBADF (Bad file descriptor) [pid 3698] close(23) = -1 EBADF (Bad file descriptor) [pid 3698] close(24) = -1 EBADF (Bad file descriptor) [pid 3698] close(25) = -1 EBADF (Bad file descriptor) [pid 3698] close(26) = -1 EBADF (Bad file descriptor) [pid 3698] close(27) = -1 EBADF (Bad file descriptor) [pid 3698] close(28) = -1 EBADF (Bad file descriptor) [pid 3698] close(29) = -1 EBADF (Bad file descriptor) [pid 3698] exit_group(0) = ? [pid 3698] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=96, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./94/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./94/binderfs") = 0 [pid 3603] umount2("./94/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./94/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./94/cgroup") = 0 [pid 3603] umount2("./94/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./94/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./94/cgroup.net") = 0 [pid 3603] umount2("./94/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./94/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./94/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./94") = 0 [pid 3603] mkdir("./95", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3699 attached , child_tidptr=0x5555567b05d0) = 97 [pid 3699] chdir("./95") = 0 [pid 3699] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3699] setpgid(0, 0) = 0 [pid 3699] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3699] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3699] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3699] write(3, "1000", 4) = 4 [pid 3699] close(3) = 0 [pid 3699] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3699] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3699] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3699] gettid() = 97 [pid 3699] process_vm_writev(97, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3699] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3699] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3699] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3699] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3699] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3699] close(3) = 0 [pid 3699] close(4) = 0 [pid 3699] close(5) = -1 EBADF (Bad file descriptor) [pid 3699] close(6) = -1 EBADF (Bad file descriptor) [pid 3699] close(7) = -1 EBADF (Bad file descriptor) [pid 3699] close(8) = -1 EBADF (Bad file descriptor) [pid 3699] close(9) = -1 EBADF (Bad file descriptor) [pid 3699] close(10) = -1 EBADF (Bad file descriptor) [pid 3699] close(11) = -1 EBADF (Bad file descriptor) [pid 3699] close(12) = -1 EBADF (Bad file descriptor) [pid 3699] close(13) = -1 EBADF (Bad file descriptor) [pid 3699] close(14) = -1 EBADF (Bad file descriptor) [pid 3699] close(15) = -1 EBADF (Bad file descriptor) [pid 3699] close(16) = -1 EBADF (Bad file descriptor) [pid 3699] close(17) = -1 EBADF (Bad file descriptor) [pid 3699] close(18) = -1 EBADF (Bad file descriptor) [pid 3699] close(19) = -1 EBADF (Bad file descriptor) [pid 3699] close(20) = -1 EBADF (Bad file descriptor) [pid 3699] close(21) = -1 EBADF (Bad file descriptor) [pid 3699] close(22) = -1 EBADF (Bad file descriptor) [pid 3699] close(23) = -1 EBADF (Bad file descriptor) [pid 3699] close(24) = -1 EBADF (Bad file descriptor) [pid 3699] close(25) = -1 EBADF (Bad file descriptor) [pid 3699] close(26) = -1 EBADF (Bad file descriptor) [pid 3699] close(27) = -1 EBADF (Bad file descriptor) [pid 3699] close(28) = -1 EBADF (Bad file descriptor) [pid 3699] close(29) = -1 EBADF (Bad file descriptor) [pid 3699] exit_group(0) = ? [pid 3699] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=97, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./95/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./95/binderfs") = 0 [pid 3603] umount2("./95/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./95/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./95/cgroup") = 0 [pid 3603] umount2("./95/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./95/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./95/cgroup.net") = 0 [pid 3603] umount2("./95/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./95/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./95/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./95") = 0 [pid 3603] mkdir("./96", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3700 attached [pid 3700] chdir("./96" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 98 [pid 3700] <... chdir resumed>) = 0 [pid 3700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3700] setpgid(0, 0) = 0 [pid 3700] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3700] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3700] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3700] write(3, "1000", 4) = 4 [pid 3700] close(3) = 0 [pid 3700] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3700] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3700] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3700] gettid() = 98 [pid 3700] process_vm_writev(98, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3700] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3700] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3700] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3700] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3700] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3700] close(3) = 0 [pid 3700] close(4) = 0 [pid 3700] close(5) = -1 EBADF (Bad file descriptor) [pid 3700] close(6) = -1 EBADF (Bad file descriptor) [pid 3700] close(7) = -1 EBADF (Bad file descriptor) [pid 3700] close(8) = -1 EBADF (Bad file descriptor) [pid 3700] close(9) = -1 EBADF (Bad file descriptor) [pid 3700] close(10) = -1 EBADF (Bad file descriptor) [pid 3700] close(11) = -1 EBADF (Bad file descriptor) [pid 3700] close(12) = -1 EBADF (Bad file descriptor) [pid 3700] close(13) = -1 EBADF (Bad file descriptor) [pid 3700] close(14) = -1 EBADF (Bad file descriptor) [pid 3700] close(15) = -1 EBADF (Bad file descriptor) [pid 3700] close(16) = -1 EBADF (Bad file descriptor) [pid 3700] close(17) = -1 EBADF (Bad file descriptor) [pid 3700] close(18) = -1 EBADF (Bad file descriptor) [pid 3700] close(19) = -1 EBADF (Bad file descriptor) [pid 3700] close(20) = -1 EBADF (Bad file descriptor) [pid 3700] close(21) = -1 EBADF (Bad file descriptor) [pid 3700] close(22) = -1 EBADF (Bad file descriptor) [pid 3700] close(23) = -1 EBADF (Bad file descriptor) [pid 3700] close(24) = -1 EBADF (Bad file descriptor) [pid 3700] close(25) = -1 EBADF (Bad file descriptor) [pid 3700] close(26) = -1 EBADF (Bad file descriptor) [pid 3700] close(27) = -1 EBADF (Bad file descriptor) [pid 3700] close(28) = -1 EBADF (Bad file descriptor) [pid 3700] close(29) = -1 EBADF (Bad file descriptor) [pid 3700] exit_group(0) = ? [pid 3700] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=98, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./96/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./96/binderfs") = 0 [pid 3603] umount2("./96/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./96/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./96/cgroup") = 0 [pid 3603] umount2("./96/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./96/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./96/cgroup.net") = 0 [pid 3603] umount2("./96/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./96/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./96/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./96") = 0 [pid 3603] mkdir("./97", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 99 ./strace-static-x86_64: Process 3701 attached [pid 3701] chdir("./97") = 0 [pid 3701] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3701] setpgid(0, 0) = 0 [pid 3701] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3701] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3701] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3701] write(3, "1000", 4) = 4 [pid 3701] close(3) = 0 [pid 3701] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3701] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3701] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3701] gettid() = 99 [pid 3701] process_vm_writev(99, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3701] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3701] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3701] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3701] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3701] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3701] close(3) = 0 [pid 3701] close(4) = 0 [pid 3701] close(5) = -1 EBADF (Bad file descriptor) [pid 3701] close(6) = -1 EBADF (Bad file descriptor) [pid 3701] close(7) = -1 EBADF (Bad file descriptor) [pid 3701] close(8) = -1 EBADF (Bad file descriptor) [pid 3701] close(9) = -1 EBADF (Bad file descriptor) [pid 3701] close(10) = -1 EBADF (Bad file descriptor) [pid 3701] close(11) = -1 EBADF (Bad file descriptor) [pid 3701] close(12) = -1 EBADF (Bad file descriptor) [pid 3701] close(13) = -1 EBADF (Bad file descriptor) [pid 3701] close(14) = -1 EBADF (Bad file descriptor) [pid 3701] close(15) = -1 EBADF (Bad file descriptor) [pid 3701] close(16) = -1 EBADF (Bad file descriptor) [pid 3701] close(17) = -1 EBADF (Bad file descriptor) [pid 3701] close(18) = -1 EBADF (Bad file descriptor) [pid 3701] close(19) = -1 EBADF (Bad file descriptor) [pid 3701] close(20) = -1 EBADF (Bad file descriptor) [pid 3701] close(21) = -1 EBADF (Bad file descriptor) [pid 3701] close(22) = -1 EBADF (Bad file descriptor) [pid 3701] close(23) = -1 EBADF (Bad file descriptor) [pid 3701] close(24) = -1 EBADF (Bad file descriptor) [pid 3701] close(25) = -1 EBADF (Bad file descriptor) [pid 3701] close(26) = -1 EBADF (Bad file descriptor) [pid 3701] close(27) = -1 EBADF (Bad file descriptor) [pid 3701] close(28) = -1 EBADF (Bad file descriptor) [pid 3701] close(29) = -1 EBADF (Bad file descriptor) [pid 3701] exit_group(0) = ? [pid 3701] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=99, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./97/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./97/binderfs") = 0 [pid 3603] umount2("./97/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./97/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./97/cgroup") = 0 [pid 3603] umount2("./97/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./97/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./97/cgroup.net") = 0 [pid 3603] umount2("./97/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./97/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./97/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./97") = 0 [pid 3603] mkdir("./98", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 100 ./strace-static-x86_64: Process 3702 attached [pid 3702] chdir("./98") = 0 [pid 3702] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3702] setpgid(0, 0) = 0 [pid 3702] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3702] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3702] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3702] write(3, "1000", 4) = 4 [pid 3702] close(3) = 0 [pid 3702] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3702] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3702] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3702] gettid() = 100 [pid 3702] process_vm_writev(100, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3702] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3702] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3702] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3702] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3702] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3702] close(3) = 0 [pid 3702] close(4) = 0 [pid 3702] close(5) = -1 EBADF (Bad file descriptor) [pid 3702] close(6) = -1 EBADF (Bad file descriptor) [pid 3702] close(7) = -1 EBADF (Bad file descriptor) [pid 3702] close(8) = -1 EBADF (Bad file descriptor) [pid 3702] close(9) = -1 EBADF (Bad file descriptor) [pid 3702] close(10) = -1 EBADF (Bad file descriptor) [pid 3702] close(11) = -1 EBADF (Bad file descriptor) [pid 3702] close(12) = -1 EBADF (Bad file descriptor) [pid 3702] close(13) = -1 EBADF (Bad file descriptor) [pid 3702] close(14) = -1 EBADF (Bad file descriptor) [pid 3702] close(15) = -1 EBADF (Bad file descriptor) [pid 3702] close(16) = -1 EBADF (Bad file descriptor) [pid 3702] close(17) = -1 EBADF (Bad file descriptor) [pid 3702] close(18) = -1 EBADF (Bad file descriptor) [pid 3702] close(19) = -1 EBADF (Bad file descriptor) [pid 3702] close(20) = -1 EBADF (Bad file descriptor) [pid 3702] close(21) = -1 EBADF (Bad file descriptor) [pid 3702] close(22) = -1 EBADF (Bad file descriptor) [pid 3702] close(23) = -1 EBADF (Bad file descriptor) [pid 3702] close(24) = -1 EBADF (Bad file descriptor) [pid 3702] close(25) = -1 EBADF (Bad file descriptor) [pid 3702] close(26) = -1 EBADF (Bad file descriptor) [pid 3702] close(27) = -1 EBADF (Bad file descriptor) [pid 3702] close(28) = -1 EBADF (Bad file descriptor) [pid 3702] close(29) = -1 EBADF (Bad file descriptor) [pid 3702] exit_group(0) = ? [pid 3702] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=100, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./98/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./98/binderfs") = 0 [pid 3603] umount2("./98/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./98/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./98/cgroup") = 0 [pid 3603] umount2("./98/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./98/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./98/cgroup.net") = 0 [pid 3603] umount2("./98/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./98/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./98/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./98") = 0 [pid 3603] mkdir("./99", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3703 attached , child_tidptr=0x5555567b05d0) = 101 [pid 3703] chdir("./99") = 0 [pid 3703] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3703] setpgid(0, 0) = 0 [pid 3703] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3703] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3703] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3703] write(3, "1000", 4) = 4 [pid 3703] close(3) = 0 [pid 3703] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3703] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3703] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3703] gettid() = 101 [pid 3703] process_vm_writev(101, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3703] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3703] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3703] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3703] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3703] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3703] close(3) = 0 [pid 3703] close(4) = 0 [pid 3703] close(5) = -1 EBADF (Bad file descriptor) [pid 3703] close(6) = -1 EBADF (Bad file descriptor) [pid 3703] close(7) = -1 EBADF (Bad file descriptor) [pid 3703] close(8) = -1 EBADF (Bad file descriptor) [pid 3703] close(9) = -1 EBADF (Bad file descriptor) [pid 3703] close(10) = -1 EBADF (Bad file descriptor) [pid 3703] close(11) = -1 EBADF (Bad file descriptor) [pid 3703] close(12) = -1 EBADF (Bad file descriptor) [pid 3703] close(13) = -1 EBADF (Bad file descriptor) [pid 3703] close(14) = -1 EBADF (Bad file descriptor) [pid 3703] close(15) = -1 EBADF (Bad file descriptor) [pid 3703] close(16) = -1 EBADF (Bad file descriptor) [pid 3703] close(17) = -1 EBADF (Bad file descriptor) [pid 3703] close(18) = -1 EBADF (Bad file descriptor) [pid 3703] close(19) = -1 EBADF (Bad file descriptor) [pid 3703] close(20) = -1 EBADF (Bad file descriptor) [pid 3703] close(21) = -1 EBADF (Bad file descriptor) [pid 3703] close(22) = -1 EBADF (Bad file descriptor) [pid 3703] close(23) = -1 EBADF (Bad file descriptor) [pid 3703] close(24) = -1 EBADF (Bad file descriptor) [pid 3703] close(25) = -1 EBADF (Bad file descriptor) [pid 3703] close(26) = -1 EBADF (Bad file descriptor) [pid 3703] close(27) = -1 EBADF (Bad file descriptor) [pid 3703] close(28) = -1 EBADF (Bad file descriptor) [pid 3703] close(29) = -1 EBADF (Bad file descriptor) [pid 3703] exit_group(0) = ? [pid 3703] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=101, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./99/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./99/binderfs") = 0 [pid 3603] umount2("./99/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./99/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./99/cgroup") = 0 [pid 3603] umount2("./99/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./99/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./99/cgroup.net") = 0 [pid 3603] umount2("./99/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./99/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./99/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./99") = 0 [pid 3603] mkdir("./100", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3704 attached , child_tidptr=0x5555567b05d0) = 102 [pid 3704] chdir("./100") = 0 [pid 3704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3704] setpgid(0, 0) = 0 [pid 3704] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3704] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3704] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3704] write(3, "1000", 4) = 4 [pid 3704] close(3) = 0 [pid 3704] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3704] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3704] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3704] gettid() = 102 [pid 3704] process_vm_writev(102, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3704] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3704] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3704] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3704] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3704] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3704] close(3) = 0 [pid 3704] close(4) = 0 [pid 3704] close(5) = -1 EBADF (Bad file descriptor) [pid 3704] close(6) = -1 EBADF (Bad file descriptor) [pid 3704] close(7) = -1 EBADF (Bad file descriptor) [pid 3704] close(8) = -1 EBADF (Bad file descriptor) [pid 3704] close(9) = -1 EBADF (Bad file descriptor) [pid 3704] close(10) = -1 EBADF (Bad file descriptor) [pid 3704] close(11) = -1 EBADF (Bad file descriptor) [pid 3704] close(12) = -1 EBADF (Bad file descriptor) [pid 3704] close(13) = -1 EBADF (Bad file descriptor) [pid 3704] close(14) = -1 EBADF (Bad file descriptor) [pid 3704] close(15) = -1 EBADF (Bad file descriptor) [pid 3704] close(16) = -1 EBADF (Bad file descriptor) [pid 3704] close(17) = -1 EBADF (Bad file descriptor) [pid 3704] close(18) = -1 EBADF (Bad file descriptor) [pid 3704] close(19) = -1 EBADF (Bad file descriptor) [pid 3704] close(20) = -1 EBADF (Bad file descriptor) [pid 3704] close(21) = -1 EBADF (Bad file descriptor) [pid 3704] close(22) = -1 EBADF (Bad file descriptor) [pid 3704] close(23) = -1 EBADF (Bad file descriptor) [pid 3704] close(24) = -1 EBADF (Bad file descriptor) [pid 3704] close(25) = -1 EBADF (Bad file descriptor) [pid 3704] close(26) = -1 EBADF (Bad file descriptor) [pid 3704] close(27) = -1 EBADF (Bad file descriptor) [pid 3704] close(28) = -1 EBADF (Bad file descriptor) [pid 3704] close(29) = -1 EBADF (Bad file descriptor) [pid 3704] exit_group(0) = ? [pid 3704] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=102, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./100/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./100/binderfs") = 0 [pid 3603] umount2("./100/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./100/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./100/cgroup") = 0 [pid 3603] umount2("./100/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./100/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./100/cgroup.net") = 0 [pid 3603] umount2("./100/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./100/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./100/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./100") = 0 [pid 3603] mkdir("./101", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 103 ./strace-static-x86_64: Process 3705 attached [pid 3705] chdir("./101") = 0 [pid 3705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3705] setpgid(0, 0) = 0 [pid 3705] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3705] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3705] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3705] write(3, "1000", 4) = 4 [pid 3705] close(3) = 0 [pid 3705] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3705] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3705] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3705] gettid() = 103 [pid 3705] process_vm_writev(103, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3705] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3705] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3705] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3705] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3705] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3705] close(3) = 0 [pid 3705] close(4) = 0 [pid 3705] close(5) = -1 EBADF (Bad file descriptor) [pid 3705] close(6) = -1 EBADF (Bad file descriptor) [pid 3705] close(7) = -1 EBADF (Bad file descriptor) [pid 3705] close(8) = -1 EBADF (Bad file descriptor) [pid 3705] close(9) = -1 EBADF (Bad file descriptor) [pid 3705] close(10) = -1 EBADF (Bad file descriptor) [pid 3705] close(11) = -1 EBADF (Bad file descriptor) [pid 3705] close(12) = -1 EBADF (Bad file descriptor) [pid 3705] close(13) = -1 EBADF (Bad file descriptor) [pid 3705] close(14) = -1 EBADF (Bad file descriptor) [pid 3705] close(15) = -1 EBADF (Bad file descriptor) [pid 3705] close(16) = -1 EBADF (Bad file descriptor) [pid 3705] close(17) = -1 EBADF (Bad file descriptor) [pid 3705] close(18) = -1 EBADF (Bad file descriptor) [pid 3705] close(19) = -1 EBADF (Bad file descriptor) [pid 3705] close(20) = -1 EBADF (Bad file descriptor) [pid 3705] close(21) = -1 EBADF (Bad file descriptor) [pid 3705] close(22) = -1 EBADF (Bad file descriptor) [pid 3705] close(23) = -1 EBADF (Bad file descriptor) [pid 3705] close(24) = -1 EBADF (Bad file descriptor) [pid 3705] close(25) = -1 EBADF (Bad file descriptor) [pid 3705] close(26) = -1 EBADF (Bad file descriptor) [pid 3705] close(27) = -1 EBADF (Bad file descriptor) [pid 3705] close(28) = -1 EBADF (Bad file descriptor) [pid 3705] close(29) = -1 EBADF (Bad file descriptor) [pid 3705] exit_group(0) = ? [pid 3705] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=103, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./101/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./101/binderfs") = 0 [pid 3603] umount2("./101/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./101/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./101/cgroup") = 0 [pid 3603] umount2("./101/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./101/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./101/cgroup.net") = 0 [pid 3603] umount2("./101/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./101/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./101/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./101") = 0 [pid 3603] mkdir("./102", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3706 attached [pid 3706] chdir("./102" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 104 [pid 3706] <... chdir resumed>) = 0 [pid 3706] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3706] setpgid(0, 0) = 0 [pid 3706] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3706] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3706] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3706] write(3, "1000", 4) = 4 [pid 3706] close(3) = 0 [pid 3706] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3706] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3706] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3706] gettid() = 104 [pid 3706] process_vm_writev(104, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3706] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3706] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3706] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3706] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3706] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3706] close(3) = 0 [pid 3706] close(4) = 0 [pid 3706] close(5) = -1 EBADF (Bad file descriptor) [pid 3706] close(6) = -1 EBADF (Bad file descriptor) [pid 3706] close(7) = -1 EBADF (Bad file descriptor) [pid 3706] close(8) = -1 EBADF (Bad file descriptor) [pid 3706] close(9) = -1 EBADF (Bad file descriptor) [pid 3706] close(10) = -1 EBADF (Bad file descriptor) [pid 3706] close(11) = -1 EBADF (Bad file descriptor) [pid 3706] close(12) = -1 EBADF (Bad file descriptor) [pid 3706] close(13) = -1 EBADF (Bad file descriptor) [pid 3706] close(14) = -1 EBADF (Bad file descriptor) [pid 3706] close(15) = -1 EBADF (Bad file descriptor) [pid 3706] close(16) = -1 EBADF (Bad file descriptor) [pid 3706] close(17) = -1 EBADF (Bad file descriptor) [pid 3706] close(18) = -1 EBADF (Bad file descriptor) [pid 3706] close(19) = -1 EBADF (Bad file descriptor) [pid 3706] close(20) = -1 EBADF (Bad file descriptor) [pid 3706] close(21) = -1 EBADF (Bad file descriptor) [pid 3706] close(22) = -1 EBADF (Bad file descriptor) [pid 3706] close(23) = -1 EBADF (Bad file descriptor) [pid 3706] close(24) = -1 EBADF (Bad file descriptor) [pid 3706] close(25) = -1 EBADF (Bad file descriptor) [pid 3706] close(26) = -1 EBADF (Bad file descriptor) [pid 3706] close(27) = -1 EBADF (Bad file descriptor) [pid 3706] close(28) = -1 EBADF (Bad file descriptor) [pid 3706] close(29) = -1 EBADF (Bad file descriptor) [pid 3706] exit_group(0) = ? [pid 3706] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=104, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./102/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./102/binderfs") = 0 [pid 3603] umount2("./102/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./102/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./102/cgroup") = 0 [pid 3603] umount2("./102/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./102/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./102/cgroup.net") = 0 [pid 3603] umount2("./102/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./102/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./102/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./102") = 0 [pid 3603] mkdir("./103", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3707 attached , child_tidptr=0x5555567b05d0) = 105 [pid 3707] chdir("./103") = 0 [pid 3707] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3707] setpgid(0, 0) = 0 [pid 3707] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3707] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3707] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3707] write(3, "1000", 4) = 4 [pid 3707] close(3) = 0 [pid 3707] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3707] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3707] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3707] gettid() = 105 [pid 3707] process_vm_writev(105, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3707] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3707] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3707] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3707] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3707] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3707] close(3) = 0 [pid 3707] close(4) = 0 [pid 3707] close(5) = -1 EBADF (Bad file descriptor) [pid 3707] close(6) = -1 EBADF (Bad file descriptor) [pid 3707] close(7) = -1 EBADF (Bad file descriptor) [pid 3707] close(8) = -1 EBADF (Bad file descriptor) [pid 3707] close(9) = -1 EBADF (Bad file descriptor) [pid 3707] close(10) = -1 EBADF (Bad file descriptor) [pid 3707] close(11) = -1 EBADF (Bad file descriptor) [pid 3707] close(12) = -1 EBADF (Bad file descriptor) [pid 3707] close(13) = -1 EBADF (Bad file descriptor) [pid 3707] close(14) = -1 EBADF (Bad file descriptor) [pid 3707] close(15) = -1 EBADF (Bad file descriptor) [pid 3707] close(16) = -1 EBADF (Bad file descriptor) [pid 3707] close(17) = -1 EBADF (Bad file descriptor) [pid 3707] close(18) = -1 EBADF (Bad file descriptor) [pid 3707] close(19) = -1 EBADF (Bad file descriptor) [pid 3707] close(20) = -1 EBADF (Bad file descriptor) [pid 3707] close(21) = -1 EBADF (Bad file descriptor) [pid 3707] close(22) = -1 EBADF (Bad file descriptor) [pid 3707] close(23) = -1 EBADF (Bad file descriptor) [pid 3707] close(24) = -1 EBADF (Bad file descriptor) [pid 3707] close(25) = -1 EBADF (Bad file descriptor) [pid 3707] close(26) = -1 EBADF (Bad file descriptor) [pid 3707] close(27) = -1 EBADF (Bad file descriptor) [pid 3707] close(28) = -1 EBADF (Bad file descriptor) [pid 3707] close(29) = -1 EBADF (Bad file descriptor) [pid 3707] exit_group(0) = ? [pid 3707] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=105, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./103/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./103/binderfs") = 0 [pid 3603] umount2("./103/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./103/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./103/cgroup") = 0 [pid 3603] umount2("./103/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./103/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./103/cgroup.net") = 0 [pid 3603] umount2("./103/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./103/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./103/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./103") = 0 [pid 3603] mkdir("./104", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3708 attached , child_tidptr=0x5555567b05d0) = 106 [pid 3708] chdir("./104") = 0 [pid 3708] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3708] setpgid(0, 0) = 0 [pid 3708] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3708] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3708] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3708] write(3, "1000", 4) = 4 [pid 3708] close(3) = 0 [pid 3708] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3708] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3708] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3708] gettid() = 106 [pid 3708] process_vm_writev(106, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3708] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3708] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3708] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3708] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3708] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3708] close(3) = 0 [pid 3708] close(4) = 0 [pid 3708] close(5) = -1 EBADF (Bad file descriptor) [pid 3708] close(6) = -1 EBADF (Bad file descriptor) [pid 3708] close(7) = -1 EBADF (Bad file descriptor) [pid 3708] close(8) = -1 EBADF (Bad file descriptor) [pid 3708] close(9) = -1 EBADF (Bad file descriptor) [pid 3708] close(10) = -1 EBADF (Bad file descriptor) [pid 3708] close(11) = -1 EBADF (Bad file descriptor) [pid 3708] close(12) = -1 EBADF (Bad file descriptor) [pid 3708] close(13) = -1 EBADF (Bad file descriptor) [pid 3708] close(14) = -1 EBADF (Bad file descriptor) [pid 3708] close(15) = -1 EBADF (Bad file descriptor) [pid 3708] close(16) = -1 EBADF (Bad file descriptor) [pid 3708] close(17) = -1 EBADF (Bad file descriptor) [pid 3708] close(18) = -1 EBADF (Bad file descriptor) [pid 3708] close(19) = -1 EBADF (Bad file descriptor) [pid 3708] close(20) = -1 EBADF (Bad file descriptor) [pid 3708] close(21) = -1 EBADF (Bad file descriptor) [pid 3708] close(22) = -1 EBADF (Bad file descriptor) [pid 3708] close(23) = -1 EBADF (Bad file descriptor) [pid 3708] close(24) = -1 EBADF (Bad file descriptor) [pid 3708] close(25) = -1 EBADF (Bad file descriptor) [pid 3708] close(26) = -1 EBADF (Bad file descriptor) [pid 3708] close(27) = -1 EBADF (Bad file descriptor) [pid 3708] close(28) = -1 EBADF (Bad file descriptor) [pid 3708] close(29) = -1 EBADF (Bad file descriptor) [pid 3708] exit_group(0) = ? [pid 3708] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=106, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./104/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./104/binderfs") = 0 [pid 3603] umount2("./104/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./104/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./104/cgroup") = 0 [pid 3603] umount2("./104/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./104/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./104/cgroup.net") = 0 [pid 3603] umount2("./104/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./104/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./104/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./104") = 0 [pid 3603] mkdir("./105", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3709 attached [pid 3709] chdir("./105") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 107 [pid 3709] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3709] setpgid(0, 0) = 0 [pid 3709] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3709] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3709] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3709] write(3, "1000", 4) = 4 [pid 3709] close(3) = 0 [pid 3709] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3709] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3709] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3709] gettid() = 107 [pid 3709] process_vm_writev(107, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3709] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3709] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3709] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3709] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3709] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3709] close(3) = 0 [pid 3709] close(4) = 0 [pid 3709] close(5) = -1 EBADF (Bad file descriptor) [pid 3709] close(6) = -1 EBADF (Bad file descriptor) [pid 3709] close(7) = -1 EBADF (Bad file descriptor) [pid 3709] close(8) = -1 EBADF (Bad file descriptor) [pid 3709] close(9) = -1 EBADF (Bad file descriptor) [pid 3709] close(10) = -1 EBADF (Bad file descriptor) [pid 3709] close(11) = -1 EBADF (Bad file descriptor) [pid 3709] close(12) = -1 EBADF (Bad file descriptor) [pid 3709] close(13) = -1 EBADF (Bad file descriptor) [pid 3709] close(14) = -1 EBADF (Bad file descriptor) [pid 3709] close(15) = -1 EBADF (Bad file descriptor) [pid 3709] close(16) = -1 EBADF (Bad file descriptor) [pid 3709] close(17) = -1 EBADF (Bad file descriptor) [pid 3709] close(18) = -1 EBADF (Bad file descriptor) [pid 3709] close(19) = -1 EBADF (Bad file descriptor) [pid 3709] close(20) = -1 EBADF (Bad file descriptor) [pid 3709] close(21) = -1 EBADF (Bad file descriptor) [pid 3709] close(22) = -1 EBADF (Bad file descriptor) [pid 3709] close(23) = -1 EBADF (Bad file descriptor) [pid 3709] close(24) = -1 EBADF (Bad file descriptor) [pid 3709] close(25) = -1 EBADF (Bad file descriptor) [pid 3709] close(26) = -1 EBADF (Bad file descriptor) [pid 3709] close(27) = -1 EBADF (Bad file descriptor) [pid 3709] close(28) = -1 EBADF (Bad file descriptor) [pid 3709] close(29) = -1 EBADF (Bad file descriptor) [pid 3709] exit_group(0) = ? [pid 3709] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=107, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./105/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./105/binderfs") = 0 [pid 3603] umount2("./105/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./105/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./105/cgroup") = 0 [pid 3603] umount2("./105/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./105/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./105/cgroup.net") = 0 [pid 3603] umount2("./105/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./105/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./105/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./105") = 0 [pid 3603] mkdir("./106", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 108 ./strace-static-x86_64: Process 3710 attached [pid 3710] chdir("./106") = 0 [pid 3710] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3710] setpgid(0, 0) = 0 [pid 3710] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3710] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3710] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3710] write(3, "1000", 4) = 4 [pid 3710] close(3) = 0 [pid 3710] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3710] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3710] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3710] gettid() = 108 [pid 3710] process_vm_writev(108, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3710] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3710] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3710] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3710] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3710] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3710] close(3) = 0 [pid 3710] close(4) = 0 [pid 3710] close(5) = -1 EBADF (Bad file descriptor) [pid 3710] close(6) = -1 EBADF (Bad file descriptor) [pid 3710] close(7) = -1 EBADF (Bad file descriptor) [pid 3710] close(8) = -1 EBADF (Bad file descriptor) [pid 3710] close(9) = -1 EBADF (Bad file descriptor) [pid 3710] close(10) = -1 EBADF (Bad file descriptor) [pid 3710] close(11) = -1 EBADF (Bad file descriptor) [pid 3710] close(12) = -1 EBADF (Bad file descriptor) [pid 3710] close(13) = -1 EBADF (Bad file descriptor) [pid 3710] close(14) = -1 EBADF (Bad file descriptor) [pid 3710] close(15) = -1 EBADF (Bad file descriptor) [pid 3710] close(16) = -1 EBADF (Bad file descriptor) [pid 3710] close(17) = -1 EBADF (Bad file descriptor) [pid 3710] close(18) = -1 EBADF (Bad file descriptor) [pid 3710] close(19) = -1 EBADF (Bad file descriptor) [pid 3710] close(20) = -1 EBADF (Bad file descriptor) [pid 3710] close(21) = -1 EBADF (Bad file descriptor) [pid 3710] close(22) = -1 EBADF (Bad file descriptor) [pid 3710] close(23) = -1 EBADF (Bad file descriptor) [pid 3710] close(24) = -1 EBADF (Bad file descriptor) [pid 3710] close(25) = -1 EBADF (Bad file descriptor) [pid 3710] close(26) = -1 EBADF (Bad file descriptor) [pid 3710] close(27) = -1 EBADF (Bad file descriptor) [pid 3710] close(28) = -1 EBADF (Bad file descriptor) [pid 3710] close(29) = -1 EBADF (Bad file descriptor) [pid 3710] exit_group(0) = ? [pid 3710] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=108, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./106/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./106/binderfs") = 0 [pid 3603] umount2("./106/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./106/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./106/cgroup") = 0 [pid 3603] umount2("./106/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./106/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./106/cgroup.net") = 0 [pid 3603] umount2("./106/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./106/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./106/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./106") = 0 [pid 3603] mkdir("./107", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3711 attached , child_tidptr=0x5555567b05d0) = 109 [pid 3711] chdir("./107") = 0 [pid 3711] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3711] setpgid(0, 0) = 0 [pid 3711] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3711] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3711] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3711] write(3, "1000", 4) = 4 [pid 3711] close(3) = 0 [pid 3711] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3711] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3711] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3711] gettid() = 109 [pid 3711] process_vm_writev(109, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3711] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3711] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3711] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3711] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3711] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3711] close(3) = 0 [pid 3711] close(4) = 0 [pid 3711] close(5) = -1 EBADF (Bad file descriptor) [pid 3711] close(6) = -1 EBADF (Bad file descriptor) [pid 3711] close(7) = -1 EBADF (Bad file descriptor) [pid 3711] close(8) = -1 EBADF (Bad file descriptor) [pid 3711] close(9) = -1 EBADF (Bad file descriptor) [pid 3711] close(10) = -1 EBADF (Bad file descriptor) [pid 3711] close(11) = -1 EBADF (Bad file descriptor) [pid 3711] close(12) = -1 EBADF (Bad file descriptor) [pid 3711] close(13) = -1 EBADF (Bad file descriptor) [pid 3711] close(14) = -1 EBADF (Bad file descriptor) [pid 3711] close(15) = -1 EBADF (Bad file descriptor) [pid 3711] close(16) = -1 EBADF (Bad file descriptor) [pid 3711] close(17) = -1 EBADF (Bad file descriptor) [pid 3711] close(18) = -1 EBADF (Bad file descriptor) [pid 3711] close(19) = -1 EBADF (Bad file descriptor) [pid 3711] close(20) = -1 EBADF (Bad file descriptor) [pid 3711] close(21) = -1 EBADF (Bad file descriptor) [pid 3711] close(22) = -1 EBADF (Bad file descriptor) [pid 3711] close(23) = -1 EBADF (Bad file descriptor) [pid 3711] close(24) = -1 EBADF (Bad file descriptor) [pid 3711] close(25) = -1 EBADF (Bad file descriptor) [pid 3711] close(26) = -1 EBADF (Bad file descriptor) [pid 3711] close(27) = -1 EBADF (Bad file descriptor) [pid 3711] close(28) = -1 EBADF (Bad file descriptor) [pid 3711] close(29) = -1 EBADF (Bad file descriptor) [pid 3711] exit_group(0) = ? [pid 3711] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=109, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./107/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./107/binderfs") = 0 [pid 3603] umount2("./107/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./107/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./107/cgroup") = 0 [pid 3603] umount2("./107/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./107/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./107/cgroup.net") = 0 [pid 3603] umount2("./107/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./107/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./107/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./107") = 0 [pid 3603] mkdir("./108", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3712 attached , child_tidptr=0x5555567b05d0) = 110 [pid 3712] chdir("./108") = 0 [pid 3712] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3712] setpgid(0, 0) = 0 [pid 3712] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3712] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3712] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3712] write(3, "1000", 4) = 4 [pid 3712] close(3) = 0 [pid 3712] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3712] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3712] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3712] gettid() = 110 [pid 3712] process_vm_writev(110, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3712] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3712] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3712] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3712] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3712] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3712] close(3) = 0 [pid 3712] close(4) = 0 [pid 3712] close(5) = -1 EBADF (Bad file descriptor) [pid 3712] close(6) = -1 EBADF (Bad file descriptor) [pid 3712] close(7) = -1 EBADF (Bad file descriptor) [pid 3712] close(8) = -1 EBADF (Bad file descriptor) [pid 3712] close(9) = -1 EBADF (Bad file descriptor) [pid 3712] close(10) = -1 EBADF (Bad file descriptor) [pid 3712] close(11) = -1 EBADF (Bad file descriptor) [pid 3712] close(12) = -1 EBADF (Bad file descriptor) [pid 3712] close(13) = -1 EBADF (Bad file descriptor) [pid 3712] close(14) = -1 EBADF (Bad file descriptor) [pid 3712] close(15) = -1 EBADF (Bad file descriptor) [pid 3712] close(16) = -1 EBADF (Bad file descriptor) [pid 3712] close(17) = -1 EBADF (Bad file descriptor) [pid 3712] close(18) = -1 EBADF (Bad file descriptor) [pid 3712] close(19) = -1 EBADF (Bad file descriptor) [pid 3712] close(20) = -1 EBADF (Bad file descriptor) [pid 3712] close(21) = -1 EBADF (Bad file descriptor) [pid 3712] close(22) = -1 EBADF (Bad file descriptor) [pid 3712] close(23) = -1 EBADF (Bad file descriptor) [pid 3712] close(24) = -1 EBADF (Bad file descriptor) [pid 3712] close(25) = -1 EBADF (Bad file descriptor) [pid 3712] close(26) = -1 EBADF (Bad file descriptor) [pid 3712] close(27) = -1 EBADF (Bad file descriptor) [pid 3712] close(28) = -1 EBADF (Bad file descriptor) [pid 3712] close(29) = -1 EBADF (Bad file descriptor) [pid 3712] exit_group(0) = ? [pid 3712] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=110, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./108", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./108/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./108/binderfs") = 0 [pid 3603] umount2("./108/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./108/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./108/cgroup") = 0 [pid 3603] umount2("./108/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./108/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./108/cgroup.net") = 0 [pid 3603] umount2("./108/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./108/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./108/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./108") = 0 [pid 3603] mkdir("./109", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3713 attached [pid 3713] chdir("./109" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 111 [pid 3713] <... chdir resumed>) = 0 [pid 3713] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3713] setpgid(0, 0) = 0 [pid 3713] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3713] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3713] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3713] write(3, "1000", 4) = 4 [pid 3713] close(3) = 0 [pid 3713] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3713] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3713] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3713] gettid() = 111 [pid 3713] process_vm_writev(111, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3713] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3713] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3713] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3713] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3713] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3713] close(3) = 0 [pid 3713] close(4) = 0 [pid 3713] close(5) = -1 EBADF (Bad file descriptor) [pid 3713] close(6) = -1 EBADF (Bad file descriptor) [pid 3713] close(7) = -1 EBADF (Bad file descriptor) [pid 3713] close(8) = -1 EBADF (Bad file descriptor) [pid 3713] close(9) = -1 EBADF (Bad file descriptor) [pid 3713] close(10) = -1 EBADF (Bad file descriptor) [pid 3713] close(11) = -1 EBADF (Bad file descriptor) [pid 3713] close(12) = -1 EBADF (Bad file descriptor) [pid 3713] close(13) = -1 EBADF (Bad file descriptor) [pid 3713] close(14) = -1 EBADF (Bad file descriptor) [pid 3713] close(15) = -1 EBADF (Bad file descriptor) [pid 3713] close(16) = -1 EBADF (Bad file descriptor) [pid 3713] close(17) = -1 EBADF (Bad file descriptor) [pid 3713] close(18) = -1 EBADF (Bad file descriptor) [pid 3713] close(19) = -1 EBADF (Bad file descriptor) [pid 3713] close(20) = -1 EBADF (Bad file descriptor) [pid 3713] close(21) = -1 EBADF (Bad file descriptor) [pid 3713] close(22) = -1 EBADF (Bad file descriptor) [pid 3713] close(23) = -1 EBADF (Bad file descriptor) [pid 3713] close(24) = -1 EBADF (Bad file descriptor) [pid 3713] close(25) = -1 EBADF (Bad file descriptor) [pid 3713] close(26) = -1 EBADF (Bad file descriptor) [pid 3713] close(27) = -1 EBADF (Bad file descriptor) [pid 3713] close(28) = -1 EBADF (Bad file descriptor) [pid 3713] close(29) = -1 EBADF (Bad file descriptor) [pid 3713] exit_group(0) = ? [pid 3713] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=111, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 3603] umount2("./109", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./109/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./109/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./109/binderfs") = 0 [pid 3603] umount2("./109/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./109/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./109/cgroup") = 0 [pid 3603] umount2("./109/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./109/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./109/cgroup.net") = 0 [pid 3603] umount2("./109/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./109/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./109/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./109") = 0 [pid 3603] mkdir("./110", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3714 attached [pid 3714] chdir("./110") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 112 [pid 3714] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3714] setpgid(0, 0) = 0 [pid 3714] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3714] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3714] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3714] write(3, "1000", 4) = 4 [pid 3714] close(3) = 0 [pid 3714] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3714] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3714] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3714] gettid() = 112 [pid 3714] process_vm_writev(112, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3714] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3714] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3714] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3714] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3714] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3714] close(3) = 0 [pid 3714] close(4) = 0 [pid 3714] close(5) = -1 EBADF (Bad file descriptor) [pid 3714] close(6) = -1 EBADF (Bad file descriptor) [pid 3714] close(7) = -1 EBADF (Bad file descriptor) [pid 3714] close(8) = -1 EBADF (Bad file descriptor) [pid 3714] close(9) = -1 EBADF (Bad file descriptor) [pid 3714] close(10) = -1 EBADF (Bad file descriptor) [pid 3714] close(11) = -1 EBADF (Bad file descriptor) [pid 3714] close(12) = -1 EBADF (Bad file descriptor) [pid 3714] close(13) = -1 EBADF (Bad file descriptor) [pid 3714] close(14) = -1 EBADF (Bad file descriptor) [pid 3714] close(15) = -1 EBADF (Bad file descriptor) [pid 3714] close(16) = -1 EBADF (Bad file descriptor) [pid 3714] close(17) = -1 EBADF (Bad file descriptor) [pid 3714] close(18) = -1 EBADF (Bad file descriptor) [pid 3714] close(19) = -1 EBADF (Bad file descriptor) [pid 3714] close(20) = -1 EBADF (Bad file descriptor) [pid 3714] close(21) = -1 EBADF (Bad file descriptor) [pid 3714] close(22) = -1 EBADF (Bad file descriptor) [pid 3714] close(23) = -1 EBADF (Bad file descriptor) [pid 3714] close(24) = -1 EBADF (Bad file descriptor) [pid 3714] close(25) = -1 EBADF (Bad file descriptor) [pid 3714] close(26) = -1 EBADF (Bad file descriptor) [pid 3714] close(27) = -1 EBADF (Bad file descriptor) [pid 3714] close(28) = -1 EBADF (Bad file descriptor) [pid 3714] close(29) = -1 EBADF (Bad file descriptor) [pid 3714] exit_group(0) = ? [pid 3714] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=112, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./110", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./110/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./110/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./110/binderfs") = 0 [pid 3603] umount2("./110/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./110/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./110/cgroup") = 0 [pid 3603] umount2("./110/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./110/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./110/cgroup.net") = 0 [pid 3603] umount2("./110/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./110/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./110/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./110") = 0 [pid 3603] mkdir("./111", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3715 attached , child_tidptr=0x5555567b05d0) = 113 [pid 3715] chdir("./111") = 0 [pid 3715] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3715] setpgid(0, 0) = 0 [pid 3715] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3715] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3715] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3715] write(3, "1000", 4) = 4 [pid 3715] close(3) = 0 [pid 3715] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3715] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3715] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3715] gettid() = 113 [pid 3715] process_vm_writev(113, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3715] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3715] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3715] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3715] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3715] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3715] close(3) = 0 [pid 3715] close(4) = 0 [pid 3715] close(5) = -1 EBADF (Bad file descriptor) [pid 3715] close(6) = -1 EBADF (Bad file descriptor) [pid 3715] close(7) = -1 EBADF (Bad file descriptor) [pid 3715] close(8) = -1 EBADF (Bad file descriptor) [pid 3715] close(9) = -1 EBADF (Bad file descriptor) [pid 3715] close(10) = -1 EBADF (Bad file descriptor) [pid 3715] close(11) = -1 EBADF (Bad file descriptor) [pid 3715] close(12) = -1 EBADF (Bad file descriptor) [pid 3715] close(13) = -1 EBADF (Bad file descriptor) [pid 3715] close(14) = -1 EBADF (Bad file descriptor) [pid 3715] close(15) = -1 EBADF (Bad file descriptor) [pid 3715] close(16) = -1 EBADF (Bad file descriptor) [pid 3715] close(17) = -1 EBADF (Bad file descriptor) [pid 3715] close(18) = -1 EBADF (Bad file descriptor) [pid 3715] close(19) = -1 EBADF (Bad file descriptor) [pid 3715] close(20) = -1 EBADF (Bad file descriptor) [pid 3715] close(21) = -1 EBADF (Bad file descriptor) [pid 3715] close(22) = -1 EBADF (Bad file descriptor) [pid 3715] close(23) = -1 EBADF (Bad file descriptor) [pid 3715] close(24) = -1 EBADF (Bad file descriptor) [pid 3715] close(25) = -1 EBADF (Bad file descriptor) [pid 3715] close(26) = -1 EBADF (Bad file descriptor) [pid 3715] close(27) = -1 EBADF (Bad file descriptor) [pid 3715] close(28) = -1 EBADF (Bad file descriptor) [pid 3715] close(29) = -1 EBADF (Bad file descriptor) [pid 3715] exit_group(0) = ? [pid 3715] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=113, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./111", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./111/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./111/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./111/binderfs") = 0 [pid 3603] umount2("./111/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./111/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./111/cgroup") = 0 [pid 3603] umount2("./111/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./111/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./111/cgroup.net") = 0 [pid 3603] umount2("./111/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./111/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./111/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./111") = 0 [pid 3603] mkdir("./112", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 114 ./strace-static-x86_64: Process 3716 attached [pid 3716] chdir("./112") = 0 [pid 3716] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3716] setpgid(0, 0) = 0 [pid 3716] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3716] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3716] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3716] write(3, "1000", 4) = 4 [pid 3716] close(3) = 0 [pid 3716] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3716] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3716] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3716] gettid() = 114 [pid 3716] process_vm_writev(114, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3716] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3716] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3716] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3716] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3716] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3716] close(3) = 0 [pid 3716] close(4) = 0 [pid 3716] close(5) = -1 EBADF (Bad file descriptor) [pid 3716] close(6) = -1 EBADF (Bad file descriptor) [pid 3716] close(7) = -1 EBADF (Bad file descriptor) [pid 3716] close(8) = -1 EBADF (Bad file descriptor) [pid 3716] close(9) = -1 EBADF (Bad file descriptor) [pid 3716] close(10) = -1 EBADF (Bad file descriptor) [pid 3716] close(11) = -1 EBADF (Bad file descriptor) [pid 3716] close(12) = -1 EBADF (Bad file descriptor) [pid 3716] close(13) = -1 EBADF (Bad file descriptor) [pid 3716] close(14) = -1 EBADF (Bad file descriptor) [pid 3716] close(15) = -1 EBADF (Bad file descriptor) [pid 3716] close(16) = -1 EBADF (Bad file descriptor) [pid 3716] close(17) = -1 EBADF (Bad file descriptor) [pid 3716] close(18) = -1 EBADF (Bad file descriptor) [pid 3716] close(19) = -1 EBADF (Bad file descriptor) [pid 3716] close(20) = -1 EBADF (Bad file descriptor) [pid 3716] close(21) = -1 EBADF (Bad file descriptor) [pid 3716] close(22) = -1 EBADF (Bad file descriptor) [pid 3716] close(23) = -1 EBADF (Bad file descriptor) [pid 3716] close(24) = -1 EBADF (Bad file descriptor) [pid 3716] close(25) = -1 EBADF (Bad file descriptor) [pid 3716] close(26) = -1 EBADF (Bad file descriptor) [pid 3716] close(27) = -1 EBADF (Bad file descriptor) [pid 3716] close(28) = -1 EBADF (Bad file descriptor) [pid 3716] close(29) = -1 EBADF (Bad file descriptor) [pid 3716] exit_group(0) = ? [pid 3716] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=114, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./112", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./112/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./112/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./112/binderfs") = 0 [pid 3603] umount2("./112/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./112/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./112/cgroup") = 0 [pid 3603] umount2("./112/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./112/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./112/cgroup.net") = 0 [pid 3603] umount2("./112/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./112/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./112/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./112") = 0 [pid 3603] mkdir("./113", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3717 attached , child_tidptr=0x5555567b05d0) = 115 [pid 3717] chdir("./113") = 0 [pid 3717] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3717] setpgid(0, 0) = 0 [pid 3717] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3717] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3717] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3717] write(3, "1000", 4) = 4 [pid 3717] close(3) = 0 [pid 3717] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3717] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3717] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3717] gettid() = 115 [pid 3717] process_vm_writev(115, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3717] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3717] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3717] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3717] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3717] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3717] close(3) = 0 [pid 3717] close(4) = 0 [pid 3717] close(5) = -1 EBADF (Bad file descriptor) [pid 3717] close(6) = -1 EBADF (Bad file descriptor) [pid 3717] close(7) = -1 EBADF (Bad file descriptor) [pid 3717] close(8) = -1 EBADF (Bad file descriptor) [pid 3717] close(9) = -1 EBADF (Bad file descriptor) [pid 3717] close(10) = -1 EBADF (Bad file descriptor) [pid 3717] close(11) = -1 EBADF (Bad file descriptor) [pid 3717] close(12) = -1 EBADF (Bad file descriptor) [pid 3717] close(13) = -1 EBADF (Bad file descriptor) [pid 3717] close(14) = -1 EBADF (Bad file descriptor) [pid 3717] close(15) = -1 EBADF (Bad file descriptor) [pid 3717] close(16) = -1 EBADF (Bad file descriptor) [pid 3717] close(17) = -1 EBADF (Bad file descriptor) [pid 3717] close(18) = -1 EBADF (Bad file descriptor) [pid 3717] close(19) = -1 EBADF (Bad file descriptor) [pid 3717] close(20) = -1 EBADF (Bad file descriptor) [pid 3717] close(21) = -1 EBADF (Bad file descriptor) [pid 3717] close(22) = -1 EBADF (Bad file descriptor) [pid 3717] close(23) = -1 EBADF (Bad file descriptor) [pid 3717] close(24) = -1 EBADF (Bad file descriptor) [pid 3717] close(25) = -1 EBADF (Bad file descriptor) [pid 3717] close(26) = -1 EBADF (Bad file descriptor) [pid 3717] close(27) = -1 EBADF (Bad file descriptor) [pid 3717] close(28) = -1 EBADF (Bad file descriptor) [pid 3717] close(29) = -1 EBADF (Bad file descriptor) [pid 3717] exit_group(0) = ? [pid 3717] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=115, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./113", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./113", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./113/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./113/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./113/binderfs") = 0 [pid 3603] umount2("./113/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./113/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./113/cgroup") = 0 [pid 3603] umount2("./113/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./113/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./113/cgroup.net") = 0 [pid 3603] umount2("./113/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./113/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./113/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./113") = 0 [pid 3603] mkdir("./114", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3718 attached , child_tidptr=0x5555567b05d0) = 116 [pid 3718] chdir("./114") = 0 [pid 3718] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3718] setpgid(0, 0) = 0 [pid 3718] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3718] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3718] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3718] write(3, "1000", 4) = 4 [pid 3718] close(3) = 0 [pid 3718] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3718] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3718] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3718] gettid() = 116 [pid 3718] process_vm_writev(116, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3718] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3718] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3718] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3718] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3718] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3718] close(3) = 0 [pid 3718] close(4) = 0 [pid 3718] close(5) = -1 EBADF (Bad file descriptor) [pid 3718] close(6) = -1 EBADF (Bad file descriptor) [pid 3718] close(7) = -1 EBADF (Bad file descriptor) [pid 3718] close(8) = -1 EBADF (Bad file descriptor) [pid 3718] close(9) = -1 EBADF (Bad file descriptor) [pid 3718] close(10) = -1 EBADF (Bad file descriptor) [pid 3718] close(11) = -1 EBADF (Bad file descriptor) [pid 3718] close(12) = -1 EBADF (Bad file descriptor) [pid 3718] close(13) = -1 EBADF (Bad file descriptor) [pid 3718] close(14) = -1 EBADF (Bad file descriptor) [pid 3718] close(15) = -1 EBADF (Bad file descriptor) [pid 3718] close(16) = -1 EBADF (Bad file descriptor) [pid 3718] close(17) = -1 EBADF (Bad file descriptor) [pid 3718] close(18) = -1 EBADF (Bad file descriptor) [pid 3718] close(19) = -1 EBADF (Bad file descriptor) [pid 3718] close(20) = -1 EBADF (Bad file descriptor) [pid 3718] close(21) = -1 EBADF (Bad file descriptor) [pid 3718] close(22) = -1 EBADF (Bad file descriptor) [pid 3718] close(23) = -1 EBADF (Bad file descriptor) [pid 3718] close(24) = -1 EBADF (Bad file descriptor) [pid 3718] close(25) = -1 EBADF (Bad file descriptor) [pid 3718] close(26) = -1 EBADF (Bad file descriptor) [pid 3718] close(27) = -1 EBADF (Bad file descriptor) [pid 3718] close(28) = -1 EBADF (Bad file descriptor) [pid 3718] close(29) = -1 EBADF (Bad file descriptor) [pid 3718] exit_group(0) = ? [pid 3718] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=116, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./114", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./114", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./114/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./114/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./114/binderfs") = 0 [pid 3603] umount2("./114/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./114/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./114/cgroup") = 0 [pid 3603] umount2("./114/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./114/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./114/cgroup.net") = 0 [pid 3603] umount2("./114/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./114/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./114/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./114") = 0 [pid 3603] mkdir("./115", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3719 attached , child_tidptr=0x5555567b05d0) = 117 [pid 3719] chdir("./115") = 0 [pid 3719] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3719] setpgid(0, 0) = 0 [pid 3719] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3719] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3719] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3719] write(3, "1000", 4) = 4 [pid 3719] close(3) = 0 [pid 3719] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3719] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3719] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3719] gettid() = 117 [pid 3719] process_vm_writev(117, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3719] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3719] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3719] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3719] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3719] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3719] close(3) = 0 [pid 3719] close(4) = 0 [pid 3719] close(5) = -1 EBADF (Bad file descriptor) [pid 3719] close(6) = -1 EBADF (Bad file descriptor) [pid 3719] close(7) = -1 EBADF (Bad file descriptor) [pid 3719] close(8) = -1 EBADF (Bad file descriptor) [pid 3719] close(9) = -1 EBADF (Bad file descriptor) [pid 3719] close(10) = -1 EBADF (Bad file descriptor) [pid 3719] close(11) = -1 EBADF (Bad file descriptor) [pid 3719] close(12) = -1 EBADF (Bad file descriptor) [pid 3719] close(13) = -1 EBADF (Bad file descriptor) [pid 3719] close(14) = -1 EBADF (Bad file descriptor) [pid 3719] close(15) = -1 EBADF (Bad file descriptor) [pid 3719] close(16) = -1 EBADF (Bad file descriptor) [pid 3719] close(17) = -1 EBADF (Bad file descriptor) [pid 3719] close(18) = -1 EBADF (Bad file descriptor) [pid 3719] close(19) = -1 EBADF (Bad file descriptor) [pid 3719] close(20) = -1 EBADF (Bad file descriptor) [pid 3719] close(21) = -1 EBADF (Bad file descriptor) [pid 3719] close(22) = -1 EBADF (Bad file descriptor) [pid 3719] close(23) = -1 EBADF (Bad file descriptor) [pid 3719] close(24) = -1 EBADF (Bad file descriptor) [pid 3719] close(25) = -1 EBADF (Bad file descriptor) [pid 3719] close(26) = -1 EBADF (Bad file descriptor) [pid 3719] close(27) = -1 EBADF (Bad file descriptor) [pid 3719] close(28) = -1 EBADF (Bad file descriptor) [pid 3719] close(29) = -1 EBADF (Bad file descriptor) [pid 3719] exit_group(0) = ? [pid 3719] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=117, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3603] umount2("./115", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./115", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./115/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./115/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./115/binderfs") = 0 [pid 3603] umount2("./115/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./115/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./115/cgroup") = 0 [pid 3603] umount2("./115/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./115/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./115/cgroup.net") = 0 [pid 3603] umount2("./115/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./115/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./115/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./115") = 0 [pid 3603] mkdir("./116", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 118 ./strace-static-x86_64: Process 3720 attached [pid 3720] chdir("./116") = 0 [pid 3720] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3720] setpgid(0, 0) = 0 [pid 3720] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3720] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3720] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3720] write(3, "1000", 4) = 4 [pid 3720] close(3) = 0 [pid 3720] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3720] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3720] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3720] gettid() = 118 [pid 3720] process_vm_writev(118, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3720] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3720] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3720] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3720] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3720] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3720] close(3) = 0 [pid 3720] close(4) = 0 [pid 3720] close(5) = -1 EBADF (Bad file descriptor) [pid 3720] close(6) = -1 EBADF (Bad file descriptor) [pid 3720] close(7) = -1 EBADF (Bad file descriptor) [pid 3720] close(8) = -1 EBADF (Bad file descriptor) [pid 3720] close(9) = -1 EBADF (Bad file descriptor) [pid 3720] close(10) = -1 EBADF (Bad file descriptor) [pid 3720] close(11) = -1 EBADF (Bad file descriptor) [pid 3720] close(12) = -1 EBADF (Bad file descriptor) [pid 3720] close(13) = -1 EBADF (Bad file descriptor) [pid 3720] close(14) = -1 EBADF (Bad file descriptor) [pid 3720] close(15) = -1 EBADF (Bad file descriptor) [pid 3720] close(16) = -1 EBADF (Bad file descriptor) [pid 3720] close(17) = -1 EBADF (Bad file descriptor) [pid 3720] close(18) = -1 EBADF (Bad file descriptor) [pid 3720] close(19) = -1 EBADF (Bad file descriptor) [pid 3720] close(20) = -1 EBADF (Bad file descriptor) [pid 3720] close(21) = -1 EBADF (Bad file descriptor) [pid 3720] close(22) = -1 EBADF (Bad file descriptor) [pid 3720] close(23) = -1 EBADF (Bad file descriptor) [pid 3720] close(24) = -1 EBADF (Bad file descriptor) [pid 3720] close(25) = -1 EBADF (Bad file descriptor) [pid 3720] close(26) = -1 EBADF (Bad file descriptor) [pid 3720] close(27) = -1 EBADF (Bad file descriptor) [pid 3720] close(28) = -1 EBADF (Bad file descriptor) [pid 3720] close(29) = -1 EBADF (Bad file descriptor) [pid 3720] exit_group(0) = ? [pid 3720] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=118, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./116", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./116", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./116/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./116/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./116/binderfs") = 0 [pid 3603] umount2("./116/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./116/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./116/cgroup") = 0 [pid 3603] umount2("./116/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./116/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./116/cgroup.net") = 0 [pid 3603] umount2("./116/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./116/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./116/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./116") = 0 [pid 3603] mkdir("./117", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3721 attached , child_tidptr=0x5555567b05d0) = 119 [pid 3721] chdir("./117") = 0 [pid 3721] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3721] setpgid(0, 0) = 0 [pid 3721] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3721] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3721] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3721] write(3, "1000", 4) = 4 [pid 3721] close(3) = 0 [pid 3721] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3721] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3721] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3721] gettid() = 119 [pid 3721] process_vm_writev(119, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3721] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3721] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3721] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3721] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3721] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3721] close(3) = 0 [pid 3721] close(4) = 0 [pid 3721] close(5) = -1 EBADF (Bad file descriptor) [pid 3721] close(6) = -1 EBADF (Bad file descriptor) [pid 3721] close(7) = -1 EBADF (Bad file descriptor) [pid 3721] close(8) = -1 EBADF (Bad file descriptor) [pid 3721] close(9) = -1 EBADF (Bad file descriptor) [pid 3721] close(10) = -1 EBADF (Bad file descriptor) [pid 3721] close(11) = -1 EBADF (Bad file descriptor) [pid 3721] close(12) = -1 EBADF (Bad file descriptor) [pid 3721] close(13) = -1 EBADF (Bad file descriptor) [pid 3721] close(14) = -1 EBADF (Bad file descriptor) [pid 3721] close(15) = -1 EBADF (Bad file descriptor) [pid 3721] close(16) = -1 EBADF (Bad file descriptor) [pid 3721] close(17) = -1 EBADF (Bad file descriptor) [pid 3721] close(18) = -1 EBADF (Bad file descriptor) [pid 3721] close(19) = -1 EBADF (Bad file descriptor) [pid 3721] close(20) = -1 EBADF (Bad file descriptor) [pid 3721] close(21) = -1 EBADF (Bad file descriptor) [pid 3721] close(22) = -1 EBADF (Bad file descriptor) [pid 3721] close(23) = -1 EBADF (Bad file descriptor) [pid 3721] close(24) = -1 EBADF (Bad file descriptor) [pid 3721] close(25) = -1 EBADF (Bad file descriptor) [pid 3721] close(26) = -1 EBADF (Bad file descriptor) [pid 3721] close(27) = -1 EBADF (Bad file descriptor) [pid 3721] close(28) = -1 EBADF (Bad file descriptor) [pid 3721] close(29) = -1 EBADF (Bad file descriptor) [pid 3721] exit_group(0) = ? [pid 3721] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=119, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./117", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./117", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./117/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./117/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./117/binderfs") = 0 [pid 3603] umount2("./117/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./117/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./117/cgroup") = 0 [pid 3603] umount2("./117/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./117/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./117/cgroup.net") = 0 [pid 3603] umount2("./117/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./117/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./117/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./117") = 0 [pid 3603] mkdir("./118", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 120 ./strace-static-x86_64: Process 3722 attached [pid 3722] chdir("./118") = 0 [pid 3722] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3722] setpgid(0, 0) = 0 [pid 3722] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3722] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3722] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3722] write(3, "1000", 4) = 4 [pid 3722] close(3) = 0 [pid 3722] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3722] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3722] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3722] gettid() = 120 [pid 3722] process_vm_writev(120, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3722] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3722] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3722] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3722] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3722] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3722] close(3) = 0 [pid 3722] close(4) = 0 [pid 3722] close(5) = -1 EBADF (Bad file descriptor) [pid 3722] close(6) = -1 EBADF (Bad file descriptor) [pid 3722] close(7) = -1 EBADF (Bad file descriptor) [pid 3722] close(8) = -1 EBADF (Bad file descriptor) [pid 3722] close(9) = -1 EBADF (Bad file descriptor) [pid 3722] close(10) = -1 EBADF (Bad file descriptor) [pid 3722] close(11) = -1 EBADF (Bad file descriptor) [pid 3722] close(12) = -1 EBADF (Bad file descriptor) [pid 3722] close(13) = -1 EBADF (Bad file descriptor) [pid 3722] close(14) = -1 EBADF (Bad file descriptor) [pid 3722] close(15) = -1 EBADF (Bad file descriptor) [pid 3722] close(16) = -1 EBADF (Bad file descriptor) [pid 3722] close(17) = -1 EBADF (Bad file descriptor) [pid 3722] close(18) = -1 EBADF (Bad file descriptor) [pid 3722] close(19) = -1 EBADF (Bad file descriptor) [pid 3722] close(20) = -1 EBADF (Bad file descriptor) [pid 3722] close(21) = -1 EBADF (Bad file descriptor) [pid 3722] close(22) = -1 EBADF (Bad file descriptor) [pid 3722] close(23) = -1 EBADF (Bad file descriptor) [pid 3722] close(24) = -1 EBADF (Bad file descriptor) [pid 3722] close(25) = -1 EBADF (Bad file descriptor) [pid 3722] close(26) = -1 EBADF (Bad file descriptor) [pid 3722] close(27) = -1 EBADF (Bad file descriptor) [pid 3722] close(28) = -1 EBADF (Bad file descriptor) [pid 3722] close(29) = -1 EBADF (Bad file descriptor) [pid 3722] exit_group(0) = ? [pid 3722] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=120, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./118", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./118", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./118/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./118/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./118/binderfs") = 0 [pid 3603] umount2("./118/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./118/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./118/cgroup") = 0 [pid 3603] umount2("./118/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./118/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./118/cgroup.net") = 0 [pid 3603] umount2("./118/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./118/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./118/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./118") = 0 [pid 3603] mkdir("./119", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3723 attached [pid 3723] chdir("./119") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 121 [pid 3723] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3723] setpgid(0, 0) = 0 [pid 3723] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3723] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3723] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3723] write(3, "1000", 4) = 4 [pid 3723] close(3) = 0 [pid 3723] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3723] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3723] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3723] gettid() = 121 [pid 3723] process_vm_writev(121, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3723] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3723] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3723] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3723] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3723] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3723] close(3) = 0 [pid 3723] close(4) = 0 [pid 3723] close(5) = -1 EBADF (Bad file descriptor) [pid 3723] close(6) = -1 EBADF (Bad file descriptor) [pid 3723] close(7) = -1 EBADF (Bad file descriptor) [pid 3723] close(8) = -1 EBADF (Bad file descriptor) [pid 3723] close(9) = -1 EBADF (Bad file descriptor) [pid 3723] close(10) = -1 EBADF (Bad file descriptor) [pid 3723] close(11) = -1 EBADF (Bad file descriptor) [pid 3723] close(12) = -1 EBADF (Bad file descriptor) [pid 3723] close(13) = -1 EBADF (Bad file descriptor) [pid 3723] close(14) = -1 EBADF (Bad file descriptor) [pid 3723] close(15) = -1 EBADF (Bad file descriptor) [pid 3723] close(16) = -1 EBADF (Bad file descriptor) [pid 3723] close(17) = -1 EBADF (Bad file descriptor) [pid 3723] close(18) = -1 EBADF (Bad file descriptor) [pid 3723] close(19) = -1 EBADF (Bad file descriptor) [pid 3723] close(20) = -1 EBADF (Bad file descriptor) [pid 3723] close(21) = -1 EBADF (Bad file descriptor) [pid 3723] close(22) = -1 EBADF (Bad file descriptor) [pid 3723] close(23) = -1 EBADF (Bad file descriptor) [pid 3723] close(24) = -1 EBADF (Bad file descriptor) [pid 3723] close(25) = -1 EBADF (Bad file descriptor) [pid 3723] close(26) = -1 EBADF (Bad file descriptor) [pid 3723] close(27) = -1 EBADF (Bad file descriptor) [pid 3723] close(28) = -1 EBADF (Bad file descriptor) [pid 3723] close(29) = -1 EBADF (Bad file descriptor) [pid 3723] exit_group(0) = ? [pid 3723] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=121, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./119", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./119", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./119/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./119/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./119/binderfs") = 0 [pid 3603] umount2("./119/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./119/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./119/cgroup") = 0 [pid 3603] umount2("./119/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./119/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./119/cgroup.net") = 0 [pid 3603] umount2("./119/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./119/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./119/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./119") = 0 [pid 3603] mkdir("./120", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3724 attached , child_tidptr=0x5555567b05d0) = 122 [pid 3724] chdir("./120") = 0 [pid 3724] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3724] setpgid(0, 0) = 0 [pid 3724] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3724] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3724] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3724] write(3, "1000", 4) = 4 [pid 3724] close(3) = 0 [pid 3724] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3724] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3724] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3724] gettid() = 122 [pid 3724] process_vm_writev(122, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3724] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3724] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3724] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3724] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3724] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3724] close(3) = 0 [pid 3724] close(4) = 0 [pid 3724] close(5) = -1 EBADF (Bad file descriptor) [pid 3724] close(6) = -1 EBADF (Bad file descriptor) [pid 3724] close(7) = -1 EBADF (Bad file descriptor) [pid 3724] close(8) = -1 EBADF (Bad file descriptor) [pid 3724] close(9) = -1 EBADF (Bad file descriptor) [pid 3724] close(10) = -1 EBADF (Bad file descriptor) [pid 3724] close(11) = -1 EBADF (Bad file descriptor) [pid 3724] close(12) = -1 EBADF (Bad file descriptor) [pid 3724] close(13) = -1 EBADF (Bad file descriptor) [pid 3724] close(14) = -1 EBADF (Bad file descriptor) [pid 3724] close(15) = -1 EBADF (Bad file descriptor) [pid 3724] close(16) = -1 EBADF (Bad file descriptor) [pid 3724] close(17) = -1 EBADF (Bad file descriptor) [pid 3724] close(18) = -1 EBADF (Bad file descriptor) [pid 3724] close(19) = -1 EBADF (Bad file descriptor) [pid 3724] close(20) = -1 EBADF (Bad file descriptor) [pid 3724] close(21) = -1 EBADF (Bad file descriptor) [pid 3724] close(22) = -1 EBADF (Bad file descriptor) [pid 3724] close(23) = -1 EBADF (Bad file descriptor) [pid 3724] close(24) = -1 EBADF (Bad file descriptor) [pid 3724] close(25) = -1 EBADF (Bad file descriptor) [pid 3724] close(26) = -1 EBADF (Bad file descriptor) [pid 3724] close(27) = -1 EBADF (Bad file descriptor) [pid 3724] close(28) = -1 EBADF (Bad file descriptor) [pid 3724] close(29) = -1 EBADF (Bad file descriptor) [pid 3724] exit_group(0) = ? [pid 3724] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=122, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./120", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./120", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./120/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./120/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./120/binderfs") = 0 [pid 3603] umount2("./120/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./120/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./120/cgroup") = 0 [pid 3603] umount2("./120/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./120/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./120/cgroup.net") = 0 [pid 3603] umount2("./120/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./120/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./120/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./120") = 0 [pid 3603] mkdir("./121", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3725 attached [pid 3725] chdir("./121") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 123 [pid 3725] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3725] setpgid(0, 0) = 0 [pid 3725] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3725] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3725] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3725] write(3, "1000", 4) = 4 [pid 3725] close(3) = 0 [pid 3725] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3725] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3725] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3725] gettid() = 123 [pid 3725] process_vm_writev(123, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3725] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3725] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3725] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3725] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3725] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3725] close(3) = 0 [pid 3725] close(4) = 0 [pid 3725] close(5) = -1 EBADF (Bad file descriptor) [pid 3725] close(6) = -1 EBADF (Bad file descriptor) [pid 3725] close(7) = -1 EBADF (Bad file descriptor) [pid 3725] close(8) = -1 EBADF (Bad file descriptor) [pid 3725] close(9) = -1 EBADF (Bad file descriptor) [pid 3725] close(10) = -1 EBADF (Bad file descriptor) [pid 3725] close(11) = -1 EBADF (Bad file descriptor) [pid 3725] close(12) = -1 EBADF (Bad file descriptor) [pid 3725] close(13) = -1 EBADF (Bad file descriptor) [pid 3725] close(14) = -1 EBADF (Bad file descriptor) [pid 3725] close(15) = -1 EBADF (Bad file descriptor) [pid 3725] close(16) = -1 EBADF (Bad file descriptor) [pid 3725] close(17) = -1 EBADF (Bad file descriptor) [pid 3725] close(18) = -1 EBADF (Bad file descriptor) [pid 3725] close(19) = -1 EBADF (Bad file descriptor) [pid 3725] close(20) = -1 EBADF (Bad file descriptor) [pid 3725] close(21) = -1 EBADF (Bad file descriptor) [pid 3725] close(22) = -1 EBADF (Bad file descriptor) [pid 3725] close(23) = -1 EBADF (Bad file descriptor) [pid 3725] close(24) = -1 EBADF (Bad file descriptor) [pid 3725] close(25) = -1 EBADF (Bad file descriptor) [pid 3725] close(26) = -1 EBADF (Bad file descriptor) [pid 3725] close(27) = -1 EBADF (Bad file descriptor) [pid 3725] close(28) = -1 EBADF (Bad file descriptor) [pid 3725] close(29) = -1 EBADF (Bad file descriptor) [pid 3725] exit_group(0) = ? [pid 3725] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=123, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./121", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./121", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./121/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./121/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./121/binderfs") = 0 [pid 3603] umount2("./121/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./121/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./121/cgroup") = 0 [pid 3603] umount2("./121/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./121/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./121/cgroup.net") = 0 [pid 3603] umount2("./121/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./121/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./121/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./121") = 0 [pid 3603] mkdir("./122", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3726 attached , child_tidptr=0x5555567b05d0) = 124 [pid 3726] chdir("./122") = 0 [pid 3726] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3726] setpgid(0, 0) = 0 [pid 3726] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3726] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3726] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3726] write(3, "1000", 4) = 4 [pid 3726] close(3) = 0 [pid 3726] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3726] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3726] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3726] gettid() = 124 [pid 3726] process_vm_writev(124, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3726] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3726] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3726] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3726] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3726] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3726] close(3) = 0 [pid 3726] close(4) = 0 [pid 3726] close(5) = -1 EBADF (Bad file descriptor) [pid 3726] close(6) = -1 EBADF (Bad file descriptor) [pid 3726] close(7) = -1 EBADF (Bad file descriptor) [pid 3726] close(8) = -1 EBADF (Bad file descriptor) [pid 3726] close(9) = -1 EBADF (Bad file descriptor) [pid 3726] close(10) = -1 EBADF (Bad file descriptor) [pid 3726] close(11) = -1 EBADF (Bad file descriptor) [pid 3726] close(12) = -1 EBADF (Bad file descriptor) [pid 3726] close(13) = -1 EBADF (Bad file descriptor) [pid 3726] close(14) = -1 EBADF (Bad file descriptor) [pid 3726] close(15) = -1 EBADF (Bad file descriptor) [pid 3726] close(16) = -1 EBADF (Bad file descriptor) [pid 3726] close(17) = -1 EBADF (Bad file descriptor) [pid 3726] close(18) = -1 EBADF (Bad file descriptor) [pid 3726] close(19) = -1 EBADF (Bad file descriptor) [pid 3726] close(20) = -1 EBADF (Bad file descriptor) [pid 3726] close(21) = -1 EBADF (Bad file descriptor) [pid 3726] close(22) = -1 EBADF (Bad file descriptor) [pid 3726] close(23) = -1 EBADF (Bad file descriptor) [pid 3726] close(24) = -1 EBADF (Bad file descriptor) [pid 3726] close(25) = -1 EBADF (Bad file descriptor) [pid 3726] close(26) = -1 EBADF (Bad file descriptor) [pid 3726] close(27) = -1 EBADF (Bad file descriptor) [pid 3726] close(28) = -1 EBADF (Bad file descriptor) [pid 3726] close(29) = -1 EBADF (Bad file descriptor) [pid 3726] exit_group(0) = ? [pid 3726] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=124, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./122", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./122", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./122/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./122/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./122/binderfs") = 0 [pid 3603] umount2("./122/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./122/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./122/cgroup") = 0 [pid 3603] umount2("./122/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./122/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./122/cgroup.net") = 0 [pid 3603] umount2("./122/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./122/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./122/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./122") = 0 [pid 3603] mkdir("./123", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 125 ./strace-static-x86_64: Process 3727 attached [pid 3727] chdir("./123") = 0 [pid 3727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3727] setpgid(0, 0) = 0 [pid 3727] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3727] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3727] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3727] write(3, "1000", 4) = 4 [pid 3727] close(3) = 0 [pid 3727] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3727] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3727] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3727] gettid() = 125 [pid 3727] process_vm_writev(125, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3727] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3727] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3727] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3727] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3727] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3727] close(3) = 0 [pid 3727] close(4) = 0 [pid 3727] close(5) = -1 EBADF (Bad file descriptor) [pid 3727] close(6) = -1 EBADF (Bad file descriptor) [pid 3727] close(7) = -1 EBADF (Bad file descriptor) [pid 3727] close(8) = -1 EBADF (Bad file descriptor) [pid 3727] close(9) = -1 EBADF (Bad file descriptor) [pid 3727] close(10) = -1 EBADF (Bad file descriptor) [pid 3727] close(11) = -1 EBADF (Bad file descriptor) [pid 3727] close(12) = -1 EBADF (Bad file descriptor) [pid 3727] close(13) = -1 EBADF (Bad file descriptor) [pid 3727] close(14) = -1 EBADF (Bad file descriptor) [pid 3727] close(15) = -1 EBADF (Bad file descriptor) [pid 3727] close(16) = -1 EBADF (Bad file descriptor) [pid 3727] close(17) = -1 EBADF (Bad file descriptor) [pid 3727] close(18) = -1 EBADF (Bad file descriptor) [pid 3727] close(19) = -1 EBADF (Bad file descriptor) [pid 3727] close(20) = -1 EBADF (Bad file descriptor) [pid 3727] close(21) = -1 EBADF (Bad file descriptor) [pid 3727] close(22) = -1 EBADF (Bad file descriptor) [pid 3727] close(23) = -1 EBADF (Bad file descriptor) [pid 3727] close(24) = -1 EBADF (Bad file descriptor) [pid 3727] close(25) = -1 EBADF (Bad file descriptor) [pid 3727] close(26) = -1 EBADF (Bad file descriptor) [pid 3727] close(27) = -1 EBADF (Bad file descriptor) [pid 3727] close(28) = -1 EBADF (Bad file descriptor) [pid 3727] close(29) = -1 EBADF (Bad file descriptor) [pid 3727] exit_group(0) = ? [pid 3727] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=125, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./123", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./123", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./123/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./123/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./123/binderfs") = 0 [pid 3603] umount2("./123/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./123/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./123/cgroup") = 0 [pid 3603] umount2("./123/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./123/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./123/cgroup.net") = 0 [pid 3603] umount2("./123/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./123/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./123/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./123") = 0 [pid 3603] mkdir("./124", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 126 ./strace-static-x86_64: Process 3728 attached [pid 3728] chdir("./124") = 0 [pid 3728] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3728] setpgid(0, 0) = 0 [pid 3728] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3728] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3728] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3728] write(3, "1000", 4) = 4 [pid 3728] close(3) = 0 [pid 3728] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3728] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3728] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3728] gettid() = 126 [pid 3728] process_vm_writev(126, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3728] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3728] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3728] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3728] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3728] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3728] close(3) = 0 [pid 3728] close(4) = 0 [pid 3728] close(5) = -1 EBADF (Bad file descriptor) [pid 3728] close(6) = -1 EBADF (Bad file descriptor) [pid 3728] close(7) = -1 EBADF (Bad file descriptor) [pid 3728] close(8) = -1 EBADF (Bad file descriptor) [pid 3728] close(9) = -1 EBADF (Bad file descriptor) [pid 3728] close(10) = -1 EBADF (Bad file descriptor) [pid 3728] close(11) = -1 EBADF (Bad file descriptor) [pid 3728] close(12) = -1 EBADF (Bad file descriptor) [pid 3728] close(13) = -1 EBADF (Bad file descriptor) [pid 3728] close(14) = -1 EBADF (Bad file descriptor) [pid 3728] close(15) = -1 EBADF (Bad file descriptor) [pid 3728] close(16) = -1 EBADF (Bad file descriptor) [pid 3728] close(17) = -1 EBADF (Bad file descriptor) [pid 3728] close(18) = -1 EBADF (Bad file descriptor) [pid 3728] close(19) = -1 EBADF (Bad file descriptor) [pid 3728] close(20) = -1 EBADF (Bad file descriptor) [pid 3728] close(21) = -1 EBADF (Bad file descriptor) [pid 3728] close(22) = -1 EBADF (Bad file descriptor) [pid 3728] close(23) = -1 EBADF (Bad file descriptor) [pid 3728] close(24) = -1 EBADF (Bad file descriptor) [pid 3728] close(25) = -1 EBADF (Bad file descriptor) [pid 3728] close(26) = -1 EBADF (Bad file descriptor) [pid 3728] close(27) = -1 EBADF (Bad file descriptor) [pid 3728] close(28) = -1 EBADF (Bad file descriptor) [pid 3728] close(29) = -1 EBADF (Bad file descriptor) [pid 3728] exit_group(0) = ? [pid 3728] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=126, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./124", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./124", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./124/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./124/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./124/binderfs") = 0 [pid 3603] umount2("./124/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./124/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./124/cgroup") = 0 [pid 3603] umount2("./124/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./124/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./124/cgroup.net") = 0 [pid 3603] umount2("./124/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./124/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./124/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./124") = 0 [pid 3603] mkdir("./125", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 127 ./strace-static-x86_64: Process 3729 attached [pid 3729] chdir("./125") = 0 [pid 3729] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3729] setpgid(0, 0) = 0 [pid 3729] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3729] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3729] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3729] write(3, "1000", 4) = 4 [pid 3729] close(3) = 0 [pid 3729] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3729] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3729] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3729] gettid() = 127 [pid 3729] process_vm_writev(127, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3729] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3729] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3729] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3729] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3729] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3729] close(3) = 0 [pid 3729] close(4) = 0 [pid 3729] close(5) = -1 EBADF (Bad file descriptor) [pid 3729] close(6) = -1 EBADF (Bad file descriptor) [pid 3729] close(7) = -1 EBADF (Bad file descriptor) [pid 3729] close(8) = -1 EBADF (Bad file descriptor) [pid 3729] close(9) = -1 EBADF (Bad file descriptor) [pid 3729] close(10) = -1 EBADF (Bad file descriptor) [pid 3729] close(11) = -1 EBADF (Bad file descriptor) [pid 3729] close(12) = -1 EBADF (Bad file descriptor) [pid 3729] close(13) = -1 EBADF (Bad file descriptor) [pid 3729] close(14) = -1 EBADF (Bad file descriptor) [pid 3729] close(15) = -1 EBADF (Bad file descriptor) [pid 3729] close(16) = -1 EBADF (Bad file descriptor) [pid 3729] close(17) = -1 EBADF (Bad file descriptor) [pid 3729] close(18) = -1 EBADF (Bad file descriptor) [pid 3729] close(19) = -1 EBADF (Bad file descriptor) [pid 3729] close(20) = -1 EBADF (Bad file descriptor) [pid 3729] close(21) = -1 EBADF (Bad file descriptor) [pid 3729] close(22) = -1 EBADF (Bad file descriptor) [pid 3729] close(23) = -1 EBADF (Bad file descriptor) [pid 3729] close(24) = -1 EBADF (Bad file descriptor) [pid 3729] close(25) = -1 EBADF (Bad file descriptor) [pid 3729] close(26) = -1 EBADF (Bad file descriptor) [pid 3729] close(27) = -1 EBADF (Bad file descriptor) [pid 3729] close(28) = -1 EBADF (Bad file descriptor) [pid 3729] close(29) = -1 EBADF (Bad file descriptor) [pid 3729] exit_group(0) = ? [pid 3729] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=127, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./125", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./125", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./125/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./125/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./125/binderfs") = 0 [pid 3603] umount2("./125/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./125/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./125/cgroup") = 0 [pid 3603] umount2("./125/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./125/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./125/cgroup.net") = 0 [pid 3603] umount2("./125/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./125/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./125/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./125") = 0 [pid 3603] mkdir("./126", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3730 attached , child_tidptr=0x5555567b05d0) = 128 [pid 3730] chdir("./126") = 0 [pid 3730] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3730] setpgid(0, 0) = 0 [pid 3730] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3730] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3730] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3730] write(3, "1000", 4) = 4 [pid 3730] close(3) = 0 [pid 3730] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3730] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3730] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3730] gettid() = 128 [pid 3730] process_vm_writev(128, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3730] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3730] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3730] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3730] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3730] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3730] close(3) = 0 [pid 3730] close(4) = 0 [pid 3730] close(5) = -1 EBADF (Bad file descriptor) [pid 3730] close(6) = -1 EBADF (Bad file descriptor) [pid 3730] close(7) = -1 EBADF (Bad file descriptor) [pid 3730] close(8) = -1 EBADF (Bad file descriptor) [pid 3730] close(9) = -1 EBADF (Bad file descriptor) [pid 3730] close(10) = -1 EBADF (Bad file descriptor) [pid 3730] close(11) = -1 EBADF (Bad file descriptor) [pid 3730] close(12) = -1 EBADF (Bad file descriptor) [pid 3730] close(13) = -1 EBADF (Bad file descriptor) [pid 3730] close(14) = -1 EBADF (Bad file descriptor) [pid 3730] close(15) = -1 EBADF (Bad file descriptor) [pid 3730] close(16) = -1 EBADF (Bad file descriptor) [pid 3730] close(17) = -1 EBADF (Bad file descriptor) [pid 3730] close(18) = -1 EBADF (Bad file descriptor) [pid 3730] close(19) = -1 EBADF (Bad file descriptor) [pid 3730] close(20) = -1 EBADF (Bad file descriptor) [pid 3730] close(21) = -1 EBADF (Bad file descriptor) [pid 3730] close(22) = -1 EBADF (Bad file descriptor) [pid 3730] close(23) = -1 EBADF (Bad file descriptor) [pid 3730] close(24) = -1 EBADF (Bad file descriptor) [pid 3730] close(25) = -1 EBADF (Bad file descriptor) [pid 3730] close(26) = -1 EBADF (Bad file descriptor) [pid 3730] close(27) = -1 EBADF (Bad file descriptor) [pid 3730] close(28) = -1 EBADF (Bad file descriptor) [pid 3730] close(29) = -1 EBADF (Bad file descriptor) [pid 3730] exit_group(0) = ? [pid 3730] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=128, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./126", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./126", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./126/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./126/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./126/binderfs") = 0 [pid 3603] umount2("./126/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./126/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./126/cgroup") = 0 [pid 3603] umount2("./126/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./126/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./126/cgroup.net") = 0 [pid 3603] umount2("./126/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./126/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./126/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./126") = 0 [pid 3603] mkdir("./127", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3731 attached [pid 3731] chdir("./127") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 129 [pid 3731] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3731] setpgid(0, 0) = 0 [pid 3731] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3731] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3731] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3731] write(3, "1000", 4) = 4 [pid 3731] close(3) = 0 [pid 3731] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3731] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3731] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3731] gettid() = 129 [pid 3731] process_vm_writev(129, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3731] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3731] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3731] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3731] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3731] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3731] close(3) = 0 [pid 3731] close(4) = 0 [pid 3731] close(5) = -1 EBADF (Bad file descriptor) [pid 3731] close(6) = -1 EBADF (Bad file descriptor) [pid 3731] close(7) = -1 EBADF (Bad file descriptor) [pid 3731] close(8) = -1 EBADF (Bad file descriptor) [pid 3731] close(9) = -1 EBADF (Bad file descriptor) [pid 3731] close(10) = -1 EBADF (Bad file descriptor) [pid 3731] close(11) = -1 EBADF (Bad file descriptor) [pid 3731] close(12) = -1 EBADF (Bad file descriptor) [pid 3731] close(13) = -1 EBADF (Bad file descriptor) [pid 3731] close(14) = -1 EBADF (Bad file descriptor) [pid 3731] close(15) = -1 EBADF (Bad file descriptor) [pid 3731] close(16) = -1 EBADF (Bad file descriptor) [pid 3731] close(17) = -1 EBADF (Bad file descriptor) [pid 3731] close(18) = -1 EBADF (Bad file descriptor) [pid 3731] close(19) = -1 EBADF (Bad file descriptor) [pid 3731] close(20) = -1 EBADF (Bad file descriptor) [pid 3731] close(21) = -1 EBADF (Bad file descriptor) [pid 3731] close(22) = -1 EBADF (Bad file descriptor) [pid 3731] close(23) = -1 EBADF (Bad file descriptor) [pid 3731] close(24) = -1 EBADF (Bad file descriptor) [pid 3731] close(25) = -1 EBADF (Bad file descriptor) [pid 3731] close(26) = -1 EBADF (Bad file descriptor) [pid 3731] close(27) = -1 EBADF (Bad file descriptor) [pid 3731] close(28) = -1 EBADF (Bad file descriptor) [pid 3731] close(29) = -1 EBADF (Bad file descriptor) [pid 3731] exit_group(0) = ? [pid 3731] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=129, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./127", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./127", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./127/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./127/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./127/binderfs") = 0 [pid 3603] umount2("./127/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./127/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./127/cgroup") = 0 [pid 3603] umount2("./127/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./127/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./127/cgroup.net") = 0 [pid 3603] umount2("./127/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./127/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./127/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./127") = 0 [pid 3603] mkdir("./128", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3732 attached , child_tidptr=0x5555567b05d0) = 130 [pid 3732] chdir("./128") = 0 [pid 3732] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3732] setpgid(0, 0) = 0 [pid 3732] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3732] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3732] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3732] write(3, "1000", 4) = 4 [pid 3732] close(3) = 0 [pid 3732] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3732] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3732] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3732] gettid() = 130 [pid 3732] process_vm_writev(130, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3732] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3732] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3732] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3732] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3732] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3732] close(3) = 0 [pid 3732] close(4) = 0 [pid 3732] close(5) = -1 EBADF (Bad file descriptor) [pid 3732] close(6) = -1 EBADF (Bad file descriptor) [pid 3732] close(7) = -1 EBADF (Bad file descriptor) [pid 3732] close(8) = -1 EBADF (Bad file descriptor) [pid 3732] close(9) = -1 EBADF (Bad file descriptor) [pid 3732] close(10) = -1 EBADF (Bad file descriptor) [pid 3732] close(11) = -1 EBADF (Bad file descriptor) [pid 3732] close(12) = -1 EBADF (Bad file descriptor) [pid 3732] close(13) = -1 EBADF (Bad file descriptor) [pid 3732] close(14) = -1 EBADF (Bad file descriptor) [pid 3732] close(15) = -1 EBADF (Bad file descriptor) [pid 3732] close(16) = -1 EBADF (Bad file descriptor) [pid 3732] close(17) = -1 EBADF (Bad file descriptor) [pid 3732] close(18) = -1 EBADF (Bad file descriptor) [pid 3732] close(19) = -1 EBADF (Bad file descriptor) [pid 3732] close(20) = -1 EBADF (Bad file descriptor) [pid 3732] close(21) = -1 EBADF (Bad file descriptor) [pid 3732] close(22) = -1 EBADF (Bad file descriptor) [pid 3732] close(23) = -1 EBADF (Bad file descriptor) [pid 3732] close(24) = -1 EBADF (Bad file descriptor) [pid 3732] close(25) = -1 EBADF (Bad file descriptor) [pid 3732] close(26) = -1 EBADF (Bad file descriptor) [pid 3732] close(27) = -1 EBADF (Bad file descriptor) [pid 3732] close(28) = -1 EBADF (Bad file descriptor) [pid 3732] close(29) = -1 EBADF (Bad file descriptor) [pid 3732] exit_group(0) = ? [pid 3732] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=130, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./128", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./128", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./128/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./128/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./128/binderfs") = 0 [pid 3603] umount2("./128/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./128/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./128/cgroup") = 0 [pid 3603] umount2("./128/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./128/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./128/cgroup.net") = 0 [pid 3603] umount2("./128/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./128/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./128/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./128") = 0 [pid 3603] mkdir("./129", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3733 attached , child_tidptr=0x5555567b05d0) = 131 [pid 3733] chdir("./129") = 0 [pid 3733] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3733] setpgid(0, 0) = 0 [pid 3733] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3733] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3733] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3733] write(3, "1000", 4) = 4 [pid 3733] close(3) = 0 [pid 3733] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3733] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3733] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3733] gettid() = 131 [pid 3733] process_vm_writev(131, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3733] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3733] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3733] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3733] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3733] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3733] close(3) = 0 [pid 3733] close(4) = 0 [pid 3733] close(5) = -1 EBADF (Bad file descriptor) [pid 3733] close(6) = -1 EBADF (Bad file descriptor) [pid 3733] close(7) = -1 EBADF (Bad file descriptor) [pid 3733] close(8) = -1 EBADF (Bad file descriptor) [pid 3733] close(9) = -1 EBADF (Bad file descriptor) [pid 3733] close(10) = -1 EBADF (Bad file descriptor) [pid 3733] close(11) = -1 EBADF (Bad file descriptor) [pid 3733] close(12) = -1 EBADF (Bad file descriptor) [pid 3733] close(13) = -1 EBADF (Bad file descriptor) [pid 3733] close(14) = -1 EBADF (Bad file descriptor) [pid 3733] close(15) = -1 EBADF (Bad file descriptor) [pid 3733] close(16) = -1 EBADF (Bad file descriptor) [pid 3733] close(17) = -1 EBADF (Bad file descriptor) [pid 3733] close(18) = -1 EBADF (Bad file descriptor) [pid 3733] close(19) = -1 EBADF (Bad file descriptor) [pid 3733] close(20) = -1 EBADF (Bad file descriptor) [pid 3733] close(21) = -1 EBADF (Bad file descriptor) [pid 3733] close(22) = -1 EBADF (Bad file descriptor) [pid 3733] close(23) = -1 EBADF (Bad file descriptor) [pid 3733] close(24) = -1 EBADF (Bad file descriptor) [pid 3733] close(25) = -1 EBADF (Bad file descriptor) [pid 3733] close(26) = -1 EBADF (Bad file descriptor) [pid 3733] close(27) = -1 EBADF (Bad file descriptor) [pid 3733] close(28) = -1 EBADF (Bad file descriptor) [pid 3733] close(29) = -1 EBADF (Bad file descriptor) [pid 3733] exit_group(0) = ? [pid 3733] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=131, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./129", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./129", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./129/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./129/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./129/binderfs") = 0 [pid 3603] umount2("./129/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./129/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./129/cgroup") = 0 [pid 3603] umount2("./129/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./129/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./129/cgroup.net") = 0 [pid 3603] umount2("./129/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./129/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./129/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./129") = 0 [pid 3603] mkdir("./130", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3734 attached [pid 3734] chdir("./130") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 132 [pid 3734] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3734] setpgid(0, 0) = 0 [pid 3734] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3734] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3734] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3734] write(3, "1000", 4) = 4 [pid 3734] close(3) = 0 [pid 3734] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3734] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3734] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3734] gettid() = 132 [pid 3734] process_vm_writev(132, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3734] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3734] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3734] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3734] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3734] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3734] close(3) = 0 [pid 3734] close(4) = 0 [pid 3734] close(5) = -1 EBADF (Bad file descriptor) [pid 3734] close(6) = -1 EBADF (Bad file descriptor) [pid 3734] close(7) = -1 EBADF (Bad file descriptor) [pid 3734] close(8) = -1 EBADF (Bad file descriptor) [pid 3734] close(9) = -1 EBADF (Bad file descriptor) [pid 3734] close(10) = -1 EBADF (Bad file descriptor) [pid 3734] close(11) = -1 EBADF (Bad file descriptor) [pid 3734] close(12) = -1 EBADF (Bad file descriptor) [pid 3734] close(13) = -1 EBADF (Bad file descriptor) [pid 3734] close(14) = -1 EBADF (Bad file descriptor) [pid 3734] close(15) = -1 EBADF (Bad file descriptor) [pid 3734] close(16) = -1 EBADF (Bad file descriptor) [pid 3734] close(17) = -1 EBADF (Bad file descriptor) [pid 3734] close(18) = -1 EBADF (Bad file descriptor) [pid 3734] close(19) = -1 EBADF (Bad file descriptor) [pid 3734] close(20) = -1 EBADF (Bad file descriptor) [pid 3734] close(21) = -1 EBADF (Bad file descriptor) [pid 3734] close(22) = -1 EBADF (Bad file descriptor) [pid 3734] close(23) = -1 EBADF (Bad file descriptor) [pid 3734] close(24) = -1 EBADF (Bad file descriptor) [pid 3734] close(25) = -1 EBADF (Bad file descriptor) [pid 3734] close(26) = -1 EBADF (Bad file descriptor) [pid 3734] close(27) = -1 EBADF (Bad file descriptor) [pid 3734] close(28) = -1 EBADF (Bad file descriptor) [pid 3734] close(29) = -1 EBADF (Bad file descriptor) [pid 3734] exit_group(0) = ? [pid 3734] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=132, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./130", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./130", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./130/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./130/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./130/binderfs") = 0 [pid 3603] umount2("./130/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./130/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./130/cgroup") = 0 [pid 3603] umount2("./130/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./130/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./130/cgroup.net") = 0 [pid 3603] umount2("./130/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./130/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./130/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./130") = 0 [pid 3603] mkdir("./131", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3735 attached [pid 3735] chdir("./131") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 133 [pid 3735] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3735] setpgid(0, 0) = 0 [pid 3735] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3735] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3735] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3735] write(3, "1000", 4) = 4 [pid 3735] close(3) = 0 [pid 3735] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3735] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3735] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3735] gettid() = 133 [pid 3735] process_vm_writev(133, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3735] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3735] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3735] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3735] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3735] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3735] close(3) = 0 [pid 3735] close(4) = 0 [pid 3735] close(5) = -1 EBADF (Bad file descriptor) [pid 3735] close(6) = -1 EBADF (Bad file descriptor) [pid 3735] close(7) = -1 EBADF (Bad file descriptor) [pid 3735] close(8) = -1 EBADF (Bad file descriptor) [pid 3735] close(9) = -1 EBADF (Bad file descriptor) [pid 3735] close(10) = -1 EBADF (Bad file descriptor) [pid 3735] close(11) = -1 EBADF (Bad file descriptor) [pid 3735] close(12) = -1 EBADF (Bad file descriptor) [pid 3735] close(13) = -1 EBADF (Bad file descriptor) [pid 3735] close(14) = -1 EBADF (Bad file descriptor) [pid 3735] close(15) = -1 EBADF (Bad file descriptor) [pid 3735] close(16) = -1 EBADF (Bad file descriptor) [pid 3735] close(17) = -1 EBADF (Bad file descriptor) [pid 3735] close(18) = -1 EBADF (Bad file descriptor) [pid 3735] close(19) = -1 EBADF (Bad file descriptor) [pid 3735] close(20) = -1 EBADF (Bad file descriptor) [pid 3735] close(21) = -1 EBADF (Bad file descriptor) [pid 3735] close(22) = -1 EBADF (Bad file descriptor) [pid 3735] close(23) = -1 EBADF (Bad file descriptor) [pid 3735] close(24) = -1 EBADF (Bad file descriptor) [pid 3735] close(25) = -1 EBADF (Bad file descriptor) [pid 3735] close(26) = -1 EBADF (Bad file descriptor) [pid 3735] close(27) = -1 EBADF (Bad file descriptor) [pid 3735] close(28) = -1 EBADF (Bad file descriptor) [pid 3735] close(29) = -1 EBADF (Bad file descriptor) [pid 3735] exit_group(0) = ? [pid 3735] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=133, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./131", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./131", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./131/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./131/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./131/binderfs") = 0 [pid 3603] umount2("./131/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./131/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./131/cgroup") = 0 [pid 3603] umount2("./131/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./131/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./131/cgroup.net") = 0 [pid 3603] umount2("./131/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./131/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./131/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./131") = 0 [pid 3603] mkdir("./132", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 134 ./strace-static-x86_64: Process 3736 attached [pid 3736] chdir("./132") = 0 [pid 3736] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3736] setpgid(0, 0) = 0 [pid 3736] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3736] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3736] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3736] write(3, "1000", 4) = 4 [pid 3736] close(3) = 0 [pid 3736] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3736] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3736] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3736] gettid() = 134 [pid 3736] process_vm_writev(134, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3736] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3736] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3736] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3736] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3736] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3736] close(3) = 0 [pid 3736] close(4) = 0 [pid 3736] close(5) = -1 EBADF (Bad file descriptor) [pid 3736] close(6) = -1 EBADF (Bad file descriptor) [pid 3736] close(7) = -1 EBADF (Bad file descriptor) [pid 3736] close(8) = -1 EBADF (Bad file descriptor) [pid 3736] close(9) = -1 EBADF (Bad file descriptor) [pid 3736] close(10) = -1 EBADF (Bad file descriptor) [pid 3736] close(11) = -1 EBADF (Bad file descriptor) [pid 3736] close(12) = -1 EBADF (Bad file descriptor) [pid 3736] close(13) = -1 EBADF (Bad file descriptor) [pid 3736] close(14) = -1 EBADF (Bad file descriptor) [pid 3736] close(15) = -1 EBADF (Bad file descriptor) [pid 3736] close(16) = -1 EBADF (Bad file descriptor) [pid 3736] close(17) = -1 EBADF (Bad file descriptor) [pid 3736] close(18) = -1 EBADF (Bad file descriptor) [pid 3736] close(19) = -1 EBADF (Bad file descriptor) [pid 3736] close(20) = -1 EBADF (Bad file descriptor) [pid 3736] close(21) = -1 EBADF (Bad file descriptor) [pid 3736] close(22) = -1 EBADF (Bad file descriptor) [pid 3736] close(23) = -1 EBADF (Bad file descriptor) [pid 3736] close(24) = -1 EBADF (Bad file descriptor) [pid 3736] close(25) = -1 EBADF (Bad file descriptor) [pid 3736] close(26) = -1 EBADF (Bad file descriptor) [pid 3736] close(27) = -1 EBADF (Bad file descriptor) [pid 3736] close(28) = -1 EBADF (Bad file descriptor) [pid 3736] close(29) = -1 EBADF (Bad file descriptor) [pid 3736] exit_group(0) = ? [pid 3736] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=134, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./132", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./132", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./132/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./132/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./132/binderfs") = 0 [pid 3603] umount2("./132/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./132/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./132/cgroup") = 0 [pid 3603] umount2("./132/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./132/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./132/cgroup.net") = 0 [pid 3603] umount2("./132/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./132/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./132/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./132") = 0 [pid 3603] mkdir("./133", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3737 attached , child_tidptr=0x5555567b05d0) = 135 [pid 3737] chdir("./133") = 0 [pid 3737] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3737] setpgid(0, 0) = 0 [pid 3737] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3737] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3737] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3737] write(3, "1000", 4) = 4 [pid 3737] close(3) = 0 [pid 3737] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3737] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3737] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3737] gettid() = 135 [pid 3737] process_vm_writev(135, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3737] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3737] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3737] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3737] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3737] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3737] close(3) = 0 [pid 3737] close(4) = 0 [pid 3737] close(5) = -1 EBADF (Bad file descriptor) [pid 3737] close(6) = -1 EBADF (Bad file descriptor) [pid 3737] close(7) = -1 EBADF (Bad file descriptor) [pid 3737] close(8) = -1 EBADF (Bad file descriptor) [pid 3737] close(9) = -1 EBADF (Bad file descriptor) [pid 3737] close(10) = -1 EBADF (Bad file descriptor) [pid 3737] close(11) = -1 EBADF (Bad file descriptor) [pid 3737] close(12) = -1 EBADF (Bad file descriptor) [pid 3737] close(13) = -1 EBADF (Bad file descriptor) [pid 3737] close(14) = -1 EBADF (Bad file descriptor) [pid 3737] close(15) = -1 EBADF (Bad file descriptor) [pid 3737] close(16) = -1 EBADF (Bad file descriptor) [pid 3737] close(17) = -1 EBADF (Bad file descriptor) [pid 3737] close(18) = -1 EBADF (Bad file descriptor) [pid 3737] close(19) = -1 EBADF (Bad file descriptor) [pid 3737] close(20) = -1 EBADF (Bad file descriptor) [pid 3737] close(21) = -1 EBADF (Bad file descriptor) [pid 3737] close(22) = -1 EBADF (Bad file descriptor) [pid 3737] close(23) = -1 EBADF (Bad file descriptor) [pid 3737] close(24) = -1 EBADF (Bad file descriptor) [pid 3737] close(25) = -1 EBADF (Bad file descriptor) [pid 3737] close(26) = -1 EBADF (Bad file descriptor) [pid 3737] close(27) = -1 EBADF (Bad file descriptor) [pid 3737] close(28) = -1 EBADF (Bad file descriptor) [pid 3737] close(29) = -1 EBADF (Bad file descriptor) [pid 3737] exit_group(0) = ? [pid 3737] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=135, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./133", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./133", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./133/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./133/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./133/binderfs") = 0 [pid 3603] umount2("./133/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./133/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./133/cgroup") = 0 [pid 3603] umount2("./133/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./133/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./133/cgroup.net") = 0 [pid 3603] umount2("./133/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./133/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./133/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./133") = 0 [pid 3603] mkdir("./134", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3738 attached , child_tidptr=0x5555567b05d0) = 136 [pid 3738] chdir("./134") = 0 [pid 3738] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3738] setpgid(0, 0) = 0 [pid 3738] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3738] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3738] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3738] write(3, "1000", 4) = 4 [pid 3738] close(3) = 0 [pid 3738] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3738] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3738] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3738] gettid() = 136 [pid 3738] process_vm_writev(136, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3738] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3738] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3738] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3738] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3738] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3738] close(3) = 0 [pid 3738] close(4) = 0 [pid 3738] close(5) = -1 EBADF (Bad file descriptor) [pid 3738] close(6) = -1 EBADF (Bad file descriptor) [pid 3738] close(7) = -1 EBADF (Bad file descriptor) [pid 3738] close(8) = -1 EBADF (Bad file descriptor) [pid 3738] close(9) = -1 EBADF (Bad file descriptor) [pid 3738] close(10) = -1 EBADF (Bad file descriptor) [pid 3738] close(11) = -1 EBADF (Bad file descriptor) [pid 3738] close(12) = -1 EBADF (Bad file descriptor) [pid 3738] close(13) = -1 EBADF (Bad file descriptor) [pid 3738] close(14) = -1 EBADF (Bad file descriptor) [pid 3738] close(15) = -1 EBADF (Bad file descriptor) [pid 3738] close(16) = -1 EBADF (Bad file descriptor) [pid 3738] close(17) = -1 EBADF (Bad file descriptor) [pid 3738] close(18) = -1 EBADF (Bad file descriptor) [pid 3738] close(19) = -1 EBADF (Bad file descriptor) [pid 3738] close(20) = -1 EBADF (Bad file descriptor) [pid 3738] close(21) = -1 EBADF (Bad file descriptor) [pid 3738] close(22) = -1 EBADF (Bad file descriptor) [pid 3738] close(23) = -1 EBADF (Bad file descriptor) [pid 3738] close(24) = -1 EBADF (Bad file descriptor) [pid 3738] close(25) = -1 EBADF (Bad file descriptor) [pid 3738] close(26) = -1 EBADF (Bad file descriptor) [pid 3738] close(27) = -1 EBADF (Bad file descriptor) [pid 3738] close(28) = -1 EBADF (Bad file descriptor) [pid 3738] close(29) = -1 EBADF (Bad file descriptor) [pid 3738] exit_group(0) = ? [pid 3738] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=136, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./134", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./134", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./134/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./134/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./134/binderfs") = 0 [pid 3603] umount2("./134/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./134/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./134/cgroup") = 0 [pid 3603] umount2("./134/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./134/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./134/cgroup.net") = 0 [pid 3603] umount2("./134/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./134/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./134/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./134") = 0 [pid 3603] mkdir("./135", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3739 attached , child_tidptr=0x5555567b05d0) = 137 [pid 3739] chdir("./135") = 0 [pid 3739] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3739] setpgid(0, 0) = 0 [pid 3739] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3739] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3739] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3739] write(3, "1000", 4) = 4 [pid 3739] close(3) = 0 [pid 3739] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3739] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3739] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3739] gettid() = 137 [pid 3739] process_vm_writev(137, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3739] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3739] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3739] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3739] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3739] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3739] close(3) = 0 [pid 3739] close(4) = 0 [pid 3739] close(5) = -1 EBADF (Bad file descriptor) [pid 3739] close(6) = -1 EBADF (Bad file descriptor) [pid 3739] close(7) = -1 EBADF (Bad file descriptor) [pid 3739] close(8) = -1 EBADF (Bad file descriptor) [pid 3739] close(9) = -1 EBADF (Bad file descriptor) [pid 3739] close(10) = -1 EBADF (Bad file descriptor) [pid 3739] close(11) = -1 EBADF (Bad file descriptor) [pid 3739] close(12) = -1 EBADF (Bad file descriptor) [pid 3739] close(13) = -1 EBADF (Bad file descriptor) [pid 3739] close(14) = -1 EBADF (Bad file descriptor) [pid 3739] close(15) = -1 EBADF (Bad file descriptor) [pid 3739] close(16) = -1 EBADF (Bad file descriptor) [pid 3739] close(17) = -1 EBADF (Bad file descriptor) [pid 3739] close(18) = -1 EBADF (Bad file descriptor) [pid 3739] close(19) = -1 EBADF (Bad file descriptor) [pid 3739] close(20) = -1 EBADF (Bad file descriptor) [pid 3739] close(21) = -1 EBADF (Bad file descriptor) [pid 3739] close(22) = -1 EBADF (Bad file descriptor) [pid 3739] close(23) = -1 EBADF (Bad file descriptor) [pid 3739] close(24) = -1 EBADF (Bad file descriptor) [pid 3739] close(25) = -1 EBADF (Bad file descriptor) [pid 3739] close(26) = -1 EBADF (Bad file descriptor) [pid 3739] close(27) = -1 EBADF (Bad file descriptor) [pid 3739] close(28) = -1 EBADF (Bad file descriptor) [pid 3739] close(29) = -1 EBADF (Bad file descriptor) [pid 3739] exit_group(0) = ? [pid 3739] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=137, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./135", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./135", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./135/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./135/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./135/binderfs") = 0 [pid 3603] umount2("./135/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./135/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./135/cgroup") = 0 [pid 3603] umount2("./135/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./135/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./135/cgroup.net") = 0 [pid 3603] umount2("./135/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./135/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./135/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./135") = 0 [pid 3603] mkdir("./136", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3740 attached , child_tidptr=0x5555567b05d0) = 138 [pid 3740] chdir("./136") = 0 [pid 3740] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3740] setpgid(0, 0) = 0 [pid 3740] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3740] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3740] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3740] write(3, "1000", 4) = 4 [pid 3740] close(3) = 0 [pid 3740] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3740] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3740] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3740] gettid() = 138 [pid 3740] process_vm_writev(138, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3740] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3740] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3740] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3740] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3740] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3740] close(3) = 0 [pid 3740] close(4) = 0 [pid 3740] close(5) = -1 EBADF (Bad file descriptor) [pid 3740] close(6) = -1 EBADF (Bad file descriptor) [pid 3740] close(7) = -1 EBADF (Bad file descriptor) [pid 3740] close(8) = -1 EBADF (Bad file descriptor) [pid 3740] close(9) = -1 EBADF (Bad file descriptor) [pid 3740] close(10) = -1 EBADF (Bad file descriptor) [pid 3740] close(11) = -1 EBADF (Bad file descriptor) [pid 3740] close(12) = -1 EBADF (Bad file descriptor) [pid 3740] close(13) = -1 EBADF (Bad file descriptor) [pid 3740] close(14) = -1 EBADF (Bad file descriptor) [pid 3740] close(15) = -1 EBADF (Bad file descriptor) [pid 3740] close(16) = -1 EBADF (Bad file descriptor) [pid 3740] close(17) = -1 EBADF (Bad file descriptor) [pid 3740] close(18) = -1 EBADF (Bad file descriptor) [pid 3740] close(19) = -1 EBADF (Bad file descriptor) [pid 3740] close(20) = -1 EBADF (Bad file descriptor) [pid 3740] close(21) = -1 EBADF (Bad file descriptor) [pid 3740] close(22) = -1 EBADF (Bad file descriptor) [pid 3740] close(23) = -1 EBADF (Bad file descriptor) [pid 3740] close(24) = -1 EBADF (Bad file descriptor) [pid 3740] close(25) = -1 EBADF (Bad file descriptor) [pid 3740] close(26) = -1 EBADF (Bad file descriptor) [pid 3740] close(27) = -1 EBADF (Bad file descriptor) [pid 3740] close(28) = -1 EBADF (Bad file descriptor) [pid 3740] close(29) = -1 EBADF (Bad file descriptor) [pid 3740] exit_group(0) = ? [pid 3740] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=138, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./136", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./136", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./136/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./136/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./136/binderfs") = 0 [pid 3603] umount2("./136/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./136/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./136/cgroup") = 0 [pid 3603] umount2("./136/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./136/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./136/cgroup.net") = 0 [pid 3603] umount2("./136/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./136/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./136/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./136") = 0 [pid 3603] mkdir("./137", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3741 attached , child_tidptr=0x5555567b05d0) = 139 [pid 3741] chdir("./137") = 0 [pid 3741] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3741] setpgid(0, 0) = 0 [pid 3741] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3741] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3741] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3741] write(3, "1000", 4) = 4 [pid 3741] close(3) = 0 [pid 3741] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3741] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3741] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3741] gettid() = 139 [pid 3741] process_vm_writev(139, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3741] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3741] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3741] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3741] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3741] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3741] close(3) = 0 [pid 3741] close(4) = 0 [pid 3741] close(5) = -1 EBADF (Bad file descriptor) [pid 3741] close(6) = -1 EBADF (Bad file descriptor) [pid 3741] close(7) = -1 EBADF (Bad file descriptor) [pid 3741] close(8) = -1 EBADF (Bad file descriptor) [pid 3741] close(9) = -1 EBADF (Bad file descriptor) [pid 3741] close(10) = -1 EBADF (Bad file descriptor) [pid 3741] close(11) = -1 EBADF (Bad file descriptor) [pid 3741] close(12) = -1 EBADF (Bad file descriptor) [pid 3741] close(13) = -1 EBADF (Bad file descriptor) [pid 3741] close(14) = -1 EBADF (Bad file descriptor) [pid 3741] close(15) = -1 EBADF (Bad file descriptor) [pid 3741] close(16) = -1 EBADF (Bad file descriptor) [pid 3741] close(17) = -1 EBADF (Bad file descriptor) [pid 3741] close(18) = -1 EBADF (Bad file descriptor) [pid 3741] close(19) = -1 EBADF (Bad file descriptor) [pid 3741] close(20) = -1 EBADF (Bad file descriptor) [pid 3741] close(21) = -1 EBADF (Bad file descriptor) [pid 3741] close(22) = -1 EBADF (Bad file descriptor) [pid 3741] close(23) = -1 EBADF (Bad file descriptor) [pid 3741] close(24) = -1 EBADF (Bad file descriptor) [pid 3741] close(25) = -1 EBADF (Bad file descriptor) [pid 3741] close(26) = -1 EBADF (Bad file descriptor) [pid 3741] close(27) = -1 EBADF (Bad file descriptor) [pid 3741] close(28) = -1 EBADF (Bad file descriptor) [pid 3741] close(29) = -1 EBADF (Bad file descriptor) [pid 3741] exit_group(0) = ? [pid 3741] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=139, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./137", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./137", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./137/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./137/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./137/binderfs") = 0 [pid 3603] umount2("./137/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./137/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./137/cgroup") = 0 [pid 3603] umount2("./137/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./137/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./137/cgroup.net") = 0 [pid 3603] umount2("./137/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./137/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./137/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./137") = 0 [pid 3603] mkdir("./138", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 140 ./strace-static-x86_64: Process 3742 attached [pid 3742] chdir("./138") = 0 [pid 3742] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3742] setpgid(0, 0) = 0 [pid 3742] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3742] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3742] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3742] write(3, "1000", 4) = 4 [pid 3742] close(3) = 0 [pid 3742] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3742] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3742] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3742] gettid() = 140 [pid 3742] process_vm_writev(140, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3742] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3742] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3742] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3742] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3742] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3742] close(3) = 0 [pid 3742] close(4) = 0 [pid 3742] close(5) = -1 EBADF (Bad file descriptor) [pid 3742] close(6) = -1 EBADF (Bad file descriptor) [pid 3742] close(7) = -1 EBADF (Bad file descriptor) [pid 3742] close(8) = -1 EBADF (Bad file descriptor) [pid 3742] close(9) = -1 EBADF (Bad file descriptor) [pid 3742] close(10) = -1 EBADF (Bad file descriptor) [pid 3742] close(11) = -1 EBADF (Bad file descriptor) [pid 3742] close(12) = -1 EBADF (Bad file descriptor) [pid 3742] close(13) = -1 EBADF (Bad file descriptor) [pid 3742] close(14) = -1 EBADF (Bad file descriptor) [pid 3742] close(15) = -1 EBADF (Bad file descriptor) [pid 3742] close(16) = -1 EBADF (Bad file descriptor) [pid 3742] close(17) = -1 EBADF (Bad file descriptor) [pid 3742] close(18) = -1 EBADF (Bad file descriptor) [pid 3742] close(19) = -1 EBADF (Bad file descriptor) [pid 3742] close(20) = -1 EBADF (Bad file descriptor) [pid 3742] close(21) = -1 EBADF (Bad file descriptor) [pid 3742] close(22) = -1 EBADF (Bad file descriptor) [pid 3742] close(23) = -1 EBADF (Bad file descriptor) [pid 3742] close(24) = -1 EBADF (Bad file descriptor) [pid 3742] close(25) = -1 EBADF (Bad file descriptor) [pid 3742] close(26) = -1 EBADF (Bad file descriptor) [pid 3742] close(27) = -1 EBADF (Bad file descriptor) [pid 3742] close(28) = -1 EBADF (Bad file descriptor) [pid 3742] close(29) = -1 EBADF (Bad file descriptor) [pid 3742] exit_group(0) = ? [pid 3742] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=140, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./138", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./138", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./138/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./138/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./138/binderfs") = 0 [pid 3603] umount2("./138/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./138/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./138/cgroup") = 0 [pid 3603] umount2("./138/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./138/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./138/cgroup.net") = 0 [pid 3603] umount2("./138/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./138/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./138/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./138") = 0 [pid 3603] mkdir("./139", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 141 ./strace-static-x86_64: Process 3743 attached [pid 3743] chdir("./139") = 0 [pid 3743] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3743] setpgid(0, 0) = 0 [pid 3743] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3743] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3743] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3743] write(3, "1000", 4) = 4 [pid 3743] close(3) = 0 [pid 3743] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3743] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3743] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3743] gettid() = 141 [pid 3743] process_vm_writev(141, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3743] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3743] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3743] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3743] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3743] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3743] close(3) = 0 [pid 3743] close(4) = 0 [pid 3743] close(5) = -1 EBADF (Bad file descriptor) [pid 3743] close(6) = -1 EBADF (Bad file descriptor) [pid 3743] close(7) = -1 EBADF (Bad file descriptor) [pid 3743] close(8) = -1 EBADF (Bad file descriptor) [pid 3743] close(9) = -1 EBADF (Bad file descriptor) [pid 3743] close(10) = -1 EBADF (Bad file descriptor) [pid 3743] close(11) = -1 EBADF (Bad file descriptor) [pid 3743] close(12) = -1 EBADF (Bad file descriptor) [pid 3743] close(13) = -1 EBADF (Bad file descriptor) [pid 3743] close(14) = -1 EBADF (Bad file descriptor) [pid 3743] close(15) = -1 EBADF (Bad file descriptor) [pid 3743] close(16) = -1 EBADF (Bad file descriptor) [pid 3743] close(17) = -1 EBADF (Bad file descriptor) [pid 3743] close(18) = -1 EBADF (Bad file descriptor) [pid 3743] close(19) = -1 EBADF (Bad file descriptor) [pid 3743] close(20) = -1 EBADF (Bad file descriptor) [pid 3743] close(21) = -1 EBADF (Bad file descriptor) [pid 3743] close(22) = -1 EBADF (Bad file descriptor) [pid 3743] close(23) = -1 EBADF (Bad file descriptor) [pid 3743] close(24) = -1 EBADF (Bad file descriptor) [pid 3743] close(25) = -1 EBADF (Bad file descriptor) [pid 3743] close(26) = -1 EBADF (Bad file descriptor) [pid 3743] close(27) = -1 EBADF (Bad file descriptor) [pid 3743] close(28) = -1 EBADF (Bad file descriptor) [pid 3743] close(29) = -1 EBADF (Bad file descriptor) [pid 3743] exit_group(0) = ? [pid 3743] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=141, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./139", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./139", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./139/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./139/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./139/binderfs") = 0 [pid 3603] umount2("./139/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./139/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./139/cgroup") = 0 [pid 3603] umount2("./139/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./139/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./139/cgroup.net") = 0 [pid 3603] umount2("./139/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./139/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./139/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./139") = 0 [pid 3603] mkdir("./140", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 142 ./strace-static-x86_64: Process 3744 attached [pid 3744] chdir("./140") = 0 [pid 3744] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3744] setpgid(0, 0) = 0 [pid 3744] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3744] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3744] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3744] write(3, "1000", 4) = 4 [pid 3744] close(3) = 0 [pid 3744] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3744] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3744] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3744] gettid() = 142 [pid 3744] process_vm_writev(142, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3744] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3744] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3744] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3744] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3744] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3744] close(3) = 0 [pid 3744] close(4) = 0 [pid 3744] close(5) = -1 EBADF (Bad file descriptor) [pid 3744] close(6) = -1 EBADF (Bad file descriptor) [pid 3744] close(7) = -1 EBADF (Bad file descriptor) [pid 3744] close(8) = -1 EBADF (Bad file descriptor) [pid 3744] close(9) = -1 EBADF (Bad file descriptor) [pid 3744] close(10) = -1 EBADF (Bad file descriptor) [pid 3744] close(11) = -1 EBADF (Bad file descriptor) [pid 3744] close(12) = -1 EBADF (Bad file descriptor) [pid 3744] close(13) = -1 EBADF (Bad file descriptor) [pid 3744] close(14) = -1 EBADF (Bad file descriptor) [pid 3744] close(15) = -1 EBADF (Bad file descriptor) [pid 3744] close(16) = -1 EBADF (Bad file descriptor) [pid 3744] close(17) = -1 EBADF (Bad file descriptor) [pid 3744] close(18) = -1 EBADF (Bad file descriptor) [pid 3744] close(19) = -1 EBADF (Bad file descriptor) [pid 3744] close(20) = -1 EBADF (Bad file descriptor) [pid 3744] close(21) = -1 EBADF (Bad file descriptor) [pid 3744] close(22) = -1 EBADF (Bad file descriptor) [pid 3744] close(23) = -1 EBADF (Bad file descriptor) [pid 3744] close(24) = -1 EBADF (Bad file descriptor) [pid 3744] close(25) = -1 EBADF (Bad file descriptor) [pid 3744] close(26) = -1 EBADF (Bad file descriptor) [pid 3744] close(27) = -1 EBADF (Bad file descriptor) [pid 3744] close(28) = -1 EBADF (Bad file descriptor) [pid 3744] close(29) = -1 EBADF (Bad file descriptor) [pid 3744] exit_group(0) = ? [pid 3744] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=142, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./140", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./140", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./140/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./140/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./140/binderfs") = 0 [pid 3603] umount2("./140/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./140/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./140/cgroup") = 0 [pid 3603] umount2("./140/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./140/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./140/cgroup.net") = 0 [pid 3603] umount2("./140/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./140/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./140/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./140") = 0 [pid 3603] mkdir("./141", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 143 ./strace-static-x86_64: Process 3745 attached [pid 3745] chdir("./141") = 0 [pid 3745] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3745] setpgid(0, 0) = 0 [pid 3745] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3745] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3745] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3745] write(3, "1000", 4) = 4 [pid 3745] close(3) = 0 [pid 3745] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3745] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3745] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3745] gettid() = 143 [pid 3745] process_vm_writev(143, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3745] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3745] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3745] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3745] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3745] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3745] close(3) = 0 [pid 3745] close(4) = 0 [pid 3745] close(5) = -1 EBADF (Bad file descriptor) [pid 3745] close(6) = -1 EBADF (Bad file descriptor) [pid 3745] close(7) = -1 EBADF (Bad file descriptor) [pid 3745] close(8) = -1 EBADF (Bad file descriptor) [pid 3745] close(9) = -1 EBADF (Bad file descriptor) [pid 3745] close(10) = -1 EBADF (Bad file descriptor) [pid 3745] close(11) = -1 EBADF (Bad file descriptor) [pid 3745] close(12) = -1 EBADF (Bad file descriptor) [pid 3745] close(13) = -1 EBADF (Bad file descriptor) [pid 3745] close(14) = -1 EBADF (Bad file descriptor) [pid 3745] close(15) = -1 EBADF (Bad file descriptor) [pid 3745] close(16) = -1 EBADF (Bad file descriptor) [pid 3745] close(17) = -1 EBADF (Bad file descriptor) [pid 3745] close(18) = -1 EBADF (Bad file descriptor) [pid 3745] close(19) = -1 EBADF (Bad file descriptor) [pid 3745] close(20) = -1 EBADF (Bad file descriptor) [pid 3745] close(21) = -1 EBADF (Bad file descriptor) [pid 3745] close(22) = -1 EBADF (Bad file descriptor) [pid 3745] close(23) = -1 EBADF (Bad file descriptor) [pid 3745] close(24) = -1 EBADF (Bad file descriptor) [pid 3745] close(25) = -1 EBADF (Bad file descriptor) [pid 3745] close(26) = -1 EBADF (Bad file descriptor) [pid 3745] close(27) = -1 EBADF (Bad file descriptor) [pid 3745] close(28) = -1 EBADF (Bad file descriptor) [pid 3745] close(29) = -1 EBADF (Bad file descriptor) [pid 3745] exit_group(0) = ? [pid 3745] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=143, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./141", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./141", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./141/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./141/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./141/binderfs") = 0 [pid 3603] umount2("./141/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./141/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./141/cgroup") = 0 [pid 3603] umount2("./141/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./141/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./141/cgroup.net") = 0 [pid 3603] umount2("./141/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./141/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./141/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./141") = 0 [pid 3603] mkdir("./142", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3746 attached , child_tidptr=0x5555567b05d0) = 144 [pid 3746] chdir("./142") = 0 [pid 3746] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3746] setpgid(0, 0) = 0 [pid 3746] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3746] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3746] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3746] write(3, "1000", 4) = 4 [pid 3746] close(3) = 0 [pid 3746] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3746] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3746] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3746] gettid() = 144 [pid 3746] process_vm_writev(144, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3746] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3746] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3746] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3746] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3746] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3746] close(3) = 0 [pid 3746] close(4) = 0 [pid 3746] close(5) = -1 EBADF (Bad file descriptor) [pid 3746] close(6) = -1 EBADF (Bad file descriptor) [pid 3746] close(7) = -1 EBADF (Bad file descriptor) [pid 3746] close(8) = -1 EBADF (Bad file descriptor) [pid 3746] close(9) = -1 EBADF (Bad file descriptor) [pid 3746] close(10) = -1 EBADF (Bad file descriptor) [pid 3746] close(11) = -1 EBADF (Bad file descriptor) [pid 3746] close(12) = -1 EBADF (Bad file descriptor) [pid 3746] close(13) = -1 EBADF (Bad file descriptor) [pid 3746] close(14) = -1 EBADF (Bad file descriptor) [pid 3746] close(15) = -1 EBADF (Bad file descriptor) [pid 3746] close(16) = -1 EBADF (Bad file descriptor) [pid 3746] close(17) = -1 EBADF (Bad file descriptor) [pid 3746] close(18) = -1 EBADF (Bad file descriptor) [pid 3746] close(19) = -1 EBADF (Bad file descriptor) [pid 3746] close(20) = -1 EBADF (Bad file descriptor) [pid 3746] close(21) = -1 EBADF (Bad file descriptor) [pid 3746] close(22) = -1 EBADF (Bad file descriptor) [pid 3746] close(23) = -1 EBADF (Bad file descriptor) [pid 3746] close(24) = -1 EBADF (Bad file descriptor) [pid 3746] close(25) = -1 EBADF (Bad file descriptor) [pid 3746] close(26) = -1 EBADF (Bad file descriptor) [pid 3746] close(27) = -1 EBADF (Bad file descriptor) [pid 3746] close(28) = -1 EBADF (Bad file descriptor) [pid 3746] close(29) = -1 EBADF (Bad file descriptor) [pid 3746] exit_group(0) = ? [pid 3746] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=144, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./142", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./142", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./142/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./142/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./142/binderfs") = 0 [pid 3603] umount2("./142/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./142/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./142/cgroup") = 0 [pid 3603] umount2("./142/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./142/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./142/cgroup.net") = 0 [pid 3603] umount2("./142/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./142/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./142/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./142") = 0 [pid 3603] mkdir("./143", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3747 attached [pid 3747] chdir("./143") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 145 [pid 3747] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3747] setpgid(0, 0) = 0 [pid 3747] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3747] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3747] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3747] write(3, "1000", 4) = 4 [pid 3747] close(3) = 0 [pid 3747] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3747] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3747] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3747] gettid() = 145 [pid 3747] process_vm_writev(145, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3747] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3747] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3747] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3747] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3747] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3747] close(3) = 0 [pid 3747] close(4) = 0 [pid 3747] close(5) = -1 EBADF (Bad file descriptor) [pid 3747] close(6) = -1 EBADF (Bad file descriptor) [pid 3747] close(7) = -1 EBADF (Bad file descriptor) [pid 3747] close(8) = -1 EBADF (Bad file descriptor) [pid 3747] close(9) = -1 EBADF (Bad file descriptor) [pid 3747] close(10) = -1 EBADF (Bad file descriptor) [pid 3747] close(11) = -1 EBADF (Bad file descriptor) [pid 3747] close(12) = -1 EBADF (Bad file descriptor) [pid 3747] close(13) = -1 EBADF (Bad file descriptor) [pid 3747] close(14) = -1 EBADF (Bad file descriptor) [pid 3747] close(15) = -1 EBADF (Bad file descriptor) [pid 3747] close(16) = -1 EBADF (Bad file descriptor) [pid 3747] close(17) = -1 EBADF (Bad file descriptor) [pid 3747] close(18) = -1 EBADF (Bad file descriptor) [pid 3747] close(19) = -1 EBADF (Bad file descriptor) [pid 3747] close(20) = -1 EBADF (Bad file descriptor) [pid 3747] close(21) = -1 EBADF (Bad file descriptor) [pid 3747] close(22) = -1 EBADF (Bad file descriptor) [pid 3747] close(23) = -1 EBADF (Bad file descriptor) [pid 3747] close(24) = -1 EBADF (Bad file descriptor) [pid 3747] close(25) = -1 EBADF (Bad file descriptor) [pid 3747] close(26) = -1 EBADF (Bad file descriptor) [pid 3747] close(27) = -1 EBADF (Bad file descriptor) [pid 3747] close(28) = -1 EBADF (Bad file descriptor) [pid 3747] close(29) = -1 EBADF (Bad file descriptor) [pid 3747] exit_group(0) = ? [pid 3747] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=145, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./143", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./143", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./143/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./143/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./143/binderfs") = 0 [pid 3603] umount2("./143/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./143/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./143/cgroup") = 0 [pid 3603] umount2("./143/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./143/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./143/cgroup.net") = 0 [pid 3603] umount2("./143/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./143/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./143/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./143") = 0 [pid 3603] mkdir("./144", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 146 ./strace-static-x86_64: Process 3748 attached [pid 3748] chdir("./144") = 0 [pid 3748] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3748] setpgid(0, 0) = 0 [pid 3748] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3748] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3748] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3748] write(3, "1000", 4) = 4 [pid 3748] close(3) = 0 [pid 3748] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3748] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3748] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3748] gettid() = 146 [pid 3748] process_vm_writev(146, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3748] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3748] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3748] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3748] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3748] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3748] close(3) = 0 [pid 3748] close(4) = 0 [pid 3748] close(5) = -1 EBADF (Bad file descriptor) [pid 3748] close(6) = -1 EBADF (Bad file descriptor) [pid 3748] close(7) = -1 EBADF (Bad file descriptor) [pid 3748] close(8) = -1 EBADF (Bad file descriptor) [pid 3748] close(9) = -1 EBADF (Bad file descriptor) [pid 3748] close(10) = -1 EBADF (Bad file descriptor) [pid 3748] close(11) = -1 EBADF (Bad file descriptor) [pid 3748] close(12) = -1 EBADF (Bad file descriptor) [pid 3748] close(13) = -1 EBADF (Bad file descriptor) [pid 3748] close(14) = -1 EBADF (Bad file descriptor) [pid 3748] close(15) = -1 EBADF (Bad file descriptor) [pid 3748] close(16) = -1 EBADF (Bad file descriptor) [pid 3748] close(17) = -1 EBADF (Bad file descriptor) [pid 3748] close(18) = -1 EBADF (Bad file descriptor) [pid 3748] close(19) = -1 EBADF (Bad file descriptor) [pid 3748] close(20) = -1 EBADF (Bad file descriptor) [pid 3748] close(21) = -1 EBADF (Bad file descriptor) [pid 3748] close(22) = -1 EBADF (Bad file descriptor) [pid 3748] close(23) = -1 EBADF (Bad file descriptor) [pid 3748] close(24) = -1 EBADF (Bad file descriptor) [pid 3748] close(25) = -1 EBADF (Bad file descriptor) [pid 3748] close(26) = -1 EBADF (Bad file descriptor) [pid 3748] close(27) = -1 EBADF (Bad file descriptor) [pid 3748] close(28) = -1 EBADF (Bad file descriptor) [pid 3748] close(29) = -1 EBADF (Bad file descriptor) [pid 3748] exit_group(0) = ? [pid 3748] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=146, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./144", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./144", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./144/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./144/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./144/binderfs") = 0 [pid 3603] umount2("./144/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./144/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./144/cgroup") = 0 [pid 3603] umount2("./144/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./144/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./144/cgroup.net") = 0 [pid 3603] umount2("./144/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./144/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./144/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./144") = 0 [pid 3603] mkdir("./145", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3749 attached , child_tidptr=0x5555567b05d0) = 147 [pid 3749] chdir("./145") = 0 [pid 3749] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3749] setpgid(0, 0) = 0 [pid 3749] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3749] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3749] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3749] write(3, "1000", 4) = 4 [pid 3749] close(3) = 0 [pid 3749] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3749] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3749] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3749] gettid() = 147 [pid 3749] process_vm_writev(147, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3749] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3749] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3749] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3749] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3749] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3749] close(3) = 0 [pid 3749] close(4) = 0 [pid 3749] close(5) = -1 EBADF (Bad file descriptor) [pid 3749] close(6) = -1 EBADF (Bad file descriptor) [pid 3749] close(7) = -1 EBADF (Bad file descriptor) [pid 3749] close(8) = -1 EBADF (Bad file descriptor) [pid 3749] close(9) = -1 EBADF (Bad file descriptor) [pid 3749] close(10) = -1 EBADF (Bad file descriptor) [pid 3749] close(11) = -1 EBADF (Bad file descriptor) [pid 3749] close(12) = -1 EBADF (Bad file descriptor) [pid 3749] close(13) = -1 EBADF (Bad file descriptor) [pid 3749] close(14) = -1 EBADF (Bad file descriptor) [pid 3749] close(15) = -1 EBADF (Bad file descriptor) [pid 3749] close(16) = -1 EBADF (Bad file descriptor) [pid 3749] close(17) = -1 EBADF (Bad file descriptor) [pid 3749] close(18) = -1 EBADF (Bad file descriptor) [pid 3749] close(19) = -1 EBADF (Bad file descriptor) [pid 3749] close(20) = -1 EBADF (Bad file descriptor) [pid 3749] close(21) = -1 EBADF (Bad file descriptor) [pid 3749] close(22) = -1 EBADF (Bad file descriptor) [pid 3749] close(23) = -1 EBADF (Bad file descriptor) [pid 3749] close(24) = -1 EBADF (Bad file descriptor) [pid 3749] close(25) = -1 EBADF (Bad file descriptor) [pid 3749] close(26) = -1 EBADF (Bad file descriptor) [pid 3749] close(27) = -1 EBADF (Bad file descriptor) [pid 3749] close(28) = -1 EBADF (Bad file descriptor) [pid 3749] close(29) = -1 EBADF (Bad file descriptor) [pid 3749] exit_group(0) = ? [pid 3749] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=147, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./145", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./145", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./145/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./145/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./145/binderfs") = 0 [pid 3603] umount2("./145/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./145/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./145/cgroup") = 0 [pid 3603] umount2("./145/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./145/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./145/cgroup.net") = 0 [pid 3603] umount2("./145/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./145/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./145/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./145") = 0 [pid 3603] mkdir("./146", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3750 attached [pid 3750] chdir("./146" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 148 [pid 3750] <... chdir resumed>) = 0 [pid 3750] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3750] setpgid(0, 0) = 0 [pid 3750] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3750] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3750] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3750] write(3, "1000", 4) = 4 [pid 3750] close(3) = 0 [pid 3750] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3750] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3750] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3750] gettid() = 148 [pid 3750] process_vm_writev(148, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3750] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3750] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3750] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3750] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3750] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3750] close(3) = 0 [pid 3750] close(4) = 0 [pid 3750] close(5) = -1 EBADF (Bad file descriptor) [pid 3750] close(6) = -1 EBADF (Bad file descriptor) [pid 3750] close(7) = -1 EBADF (Bad file descriptor) [pid 3750] close(8) = -1 EBADF (Bad file descriptor) [pid 3750] close(9) = -1 EBADF (Bad file descriptor) [pid 3750] close(10) = -1 EBADF (Bad file descriptor) [pid 3750] close(11) = -1 EBADF (Bad file descriptor) [pid 3750] close(12) = -1 EBADF (Bad file descriptor) [pid 3750] close(13) = -1 EBADF (Bad file descriptor) [pid 3750] close(14) = -1 EBADF (Bad file descriptor) [pid 3750] close(15) = -1 EBADF (Bad file descriptor) [pid 3750] close(16) = -1 EBADF (Bad file descriptor) [pid 3750] close(17) = -1 EBADF (Bad file descriptor) [pid 3750] close(18) = -1 EBADF (Bad file descriptor) [pid 3750] close(19) = -1 EBADF (Bad file descriptor) [pid 3750] close(20) = -1 EBADF (Bad file descriptor) [pid 3750] close(21) = -1 EBADF (Bad file descriptor) [pid 3750] close(22) = -1 EBADF (Bad file descriptor) [pid 3750] close(23) = -1 EBADF (Bad file descriptor) [pid 3750] close(24) = -1 EBADF (Bad file descriptor) [pid 3750] close(25) = -1 EBADF (Bad file descriptor) [pid 3750] close(26) = -1 EBADF (Bad file descriptor) [pid 3750] close(27) = -1 EBADF (Bad file descriptor) [pid 3750] close(28) = -1 EBADF (Bad file descriptor) [pid 3750] close(29) = -1 EBADF (Bad file descriptor) [pid 3750] exit_group(0) = ? [pid 3750] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=148, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./146", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./146", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./146/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./146/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./146/binderfs") = 0 [pid 3603] umount2("./146/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./146/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./146/cgroup") = 0 [pid 3603] umount2("./146/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./146/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./146/cgroup.net") = 0 [pid 3603] umount2("./146/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./146/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./146/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./146") = 0 [pid 3603] mkdir("./147", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3751 attached , child_tidptr=0x5555567b05d0) = 149 [pid 3751] chdir("./147") = 0 [pid 3751] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3751] setpgid(0, 0) = 0 [pid 3751] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3751] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3751] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3751] write(3, "1000", 4) = 4 [pid 3751] close(3) = 0 [pid 3751] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3751] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3751] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3751] gettid() = 149 [pid 3751] process_vm_writev(149, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3751] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3751] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3751] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3751] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3751] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3751] close(3) = 0 [pid 3751] close(4) = 0 [pid 3751] close(5) = -1 EBADF (Bad file descriptor) [pid 3751] close(6) = -1 EBADF (Bad file descriptor) [pid 3751] close(7) = -1 EBADF (Bad file descriptor) [pid 3751] close(8) = -1 EBADF (Bad file descriptor) [pid 3751] close(9) = -1 EBADF (Bad file descriptor) [pid 3751] close(10) = -1 EBADF (Bad file descriptor) [pid 3751] close(11) = -1 EBADF (Bad file descriptor) [pid 3751] close(12) = -1 EBADF (Bad file descriptor) [pid 3751] close(13) = -1 EBADF (Bad file descriptor) [pid 3751] close(14) = -1 EBADF (Bad file descriptor) [pid 3751] close(15) = -1 EBADF (Bad file descriptor) [pid 3751] close(16) = -1 EBADF (Bad file descriptor) [pid 3751] close(17) = -1 EBADF (Bad file descriptor) [pid 3751] close(18) = -1 EBADF (Bad file descriptor) [pid 3751] close(19) = -1 EBADF (Bad file descriptor) [pid 3751] close(20) = -1 EBADF (Bad file descriptor) [pid 3751] close(21) = -1 EBADF (Bad file descriptor) [pid 3751] close(22) = -1 EBADF (Bad file descriptor) [pid 3751] close(23) = -1 EBADF (Bad file descriptor) [pid 3751] close(24) = -1 EBADF (Bad file descriptor) [pid 3751] close(25) = -1 EBADF (Bad file descriptor) [pid 3751] close(26) = -1 EBADF (Bad file descriptor) [pid 3751] close(27) = -1 EBADF (Bad file descriptor) [pid 3751] close(28) = -1 EBADF (Bad file descriptor) [pid 3751] close(29) = -1 EBADF (Bad file descriptor) [pid 3751] exit_group(0) = ? [pid 3751] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=149, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./147", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./147", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./147/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./147/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./147/binderfs") = 0 [pid 3603] umount2("./147/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./147/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./147/cgroup") = 0 [pid 3603] umount2("./147/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./147/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./147/cgroup.net") = 0 [pid 3603] umount2("./147/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./147/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./147/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./147") = 0 [pid 3603] mkdir("./148", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3752 attached , child_tidptr=0x5555567b05d0) = 150 [pid 3752] chdir("./148") = 0 [pid 3752] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3752] setpgid(0, 0) = 0 [pid 3752] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3752] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3752] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3752] write(3, "1000", 4) = 4 [pid 3752] close(3) = 0 [pid 3752] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3752] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3752] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3752] gettid() = 150 [pid 3752] process_vm_writev(150, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3752] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3752] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3752] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3752] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3752] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3752] close(3) = 0 [pid 3752] close(4) = 0 [pid 3752] close(5) = -1 EBADF (Bad file descriptor) [pid 3752] close(6) = -1 EBADF (Bad file descriptor) [pid 3752] close(7) = -1 EBADF (Bad file descriptor) [pid 3752] close(8) = -1 EBADF (Bad file descriptor) [pid 3752] close(9) = -1 EBADF (Bad file descriptor) [pid 3752] close(10) = -1 EBADF (Bad file descriptor) [pid 3752] close(11) = -1 EBADF (Bad file descriptor) [pid 3752] close(12) = -1 EBADF (Bad file descriptor) [pid 3752] close(13) = -1 EBADF (Bad file descriptor) [pid 3752] close(14) = -1 EBADF (Bad file descriptor) [pid 3752] close(15) = -1 EBADF (Bad file descriptor) [pid 3752] close(16) = -1 EBADF (Bad file descriptor) [pid 3752] close(17) = -1 EBADF (Bad file descriptor) [pid 3752] close(18) = -1 EBADF (Bad file descriptor) [pid 3752] close(19) = -1 EBADF (Bad file descriptor) [pid 3752] close(20) = -1 EBADF (Bad file descriptor) [pid 3752] close(21) = -1 EBADF (Bad file descriptor) [pid 3752] close(22) = -1 EBADF (Bad file descriptor) [pid 3752] close(23) = -1 EBADF (Bad file descriptor) [pid 3752] close(24) = -1 EBADF (Bad file descriptor) [pid 3752] close(25) = -1 EBADF (Bad file descriptor) [pid 3752] close(26) = -1 EBADF (Bad file descriptor) [pid 3752] close(27) = -1 EBADF (Bad file descriptor) [pid 3752] close(28) = -1 EBADF (Bad file descriptor) [pid 3752] close(29) = -1 EBADF (Bad file descriptor) [pid 3752] exit_group(0) = ? [pid 3752] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=150, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./148", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./148", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./148/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./148/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./148/binderfs") = 0 [pid 3603] umount2("./148/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./148/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./148/cgroup") = 0 [pid 3603] umount2("./148/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./148/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./148/cgroup.net") = 0 [pid 3603] umount2("./148/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./148/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./148/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./148") = 0 [pid 3603] mkdir("./149", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3753 attached , child_tidptr=0x5555567b05d0) = 151 [pid 3753] chdir("./149") = 0 [pid 3753] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3753] setpgid(0, 0) = 0 [pid 3753] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3753] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3753] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3753] write(3, "1000", 4) = 4 [pid 3753] close(3) = 0 [pid 3753] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3753] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3753] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3753] gettid() = 151 [pid 3753] process_vm_writev(151, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3753] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3753] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3753] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3753] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3753] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3753] close(3) = 0 [pid 3753] close(4) = 0 [pid 3753] close(5) = -1 EBADF (Bad file descriptor) [pid 3753] close(6) = -1 EBADF (Bad file descriptor) [pid 3753] close(7) = -1 EBADF (Bad file descriptor) [pid 3753] close(8) = -1 EBADF (Bad file descriptor) [pid 3753] close(9) = -1 EBADF (Bad file descriptor) [pid 3753] close(10) = -1 EBADF (Bad file descriptor) [pid 3753] close(11) = -1 EBADF (Bad file descriptor) [pid 3753] close(12) = -1 EBADF (Bad file descriptor) [pid 3753] close(13) = -1 EBADF (Bad file descriptor) [pid 3753] close(14) = -1 EBADF (Bad file descriptor) [pid 3753] close(15) = -1 EBADF (Bad file descriptor) [pid 3753] close(16) = -1 EBADF (Bad file descriptor) [pid 3753] close(17) = -1 EBADF (Bad file descriptor) [pid 3753] close(18) = -1 EBADF (Bad file descriptor) [pid 3753] close(19) = -1 EBADF (Bad file descriptor) [pid 3753] close(20) = -1 EBADF (Bad file descriptor) [pid 3753] close(21) = -1 EBADF (Bad file descriptor) [pid 3753] close(22) = -1 EBADF (Bad file descriptor) [pid 3753] close(23) = -1 EBADF (Bad file descriptor) [pid 3753] close(24) = -1 EBADF (Bad file descriptor) [pid 3753] close(25) = -1 EBADF (Bad file descriptor) [pid 3753] close(26) = -1 EBADF (Bad file descriptor) [pid 3753] close(27) = -1 EBADF (Bad file descriptor) [pid 3753] close(28) = -1 EBADF (Bad file descriptor) [pid 3753] close(29) = -1 EBADF (Bad file descriptor) [pid 3753] exit_group(0) = ? [pid 3753] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=151, si_uid=0, si_status=0, si_utime=1, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./149", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./149", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./149/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./149/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./149/binderfs") = 0 [pid 3603] umount2("./149/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./149/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./149/cgroup") = 0 [pid 3603] umount2("./149/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./149/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./149/cgroup.net") = 0 [pid 3603] umount2("./149/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./149/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./149/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./149") = 0 [pid 3603] mkdir("./150", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3754 attached [pid 3754] chdir("./150") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 152 [pid 3754] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3754] setpgid(0, 0) = 0 [pid 3754] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3754] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3754] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3754] write(3, "1000", 4) = 4 [pid 3754] close(3) = 0 [pid 3754] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3754] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3754] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3754] gettid() = 152 [pid 3754] process_vm_writev(152, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3754] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3754] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3754] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3754] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3754] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3754] close(3) = 0 [pid 3754] close(4) = 0 [pid 3754] close(5) = -1 EBADF (Bad file descriptor) [pid 3754] close(6) = -1 EBADF (Bad file descriptor) [pid 3754] close(7) = -1 EBADF (Bad file descriptor) [pid 3754] close(8) = -1 EBADF (Bad file descriptor) [pid 3754] close(9) = -1 EBADF (Bad file descriptor) [pid 3754] close(10) = -1 EBADF (Bad file descriptor) [pid 3754] close(11) = -1 EBADF (Bad file descriptor) [pid 3754] close(12) = -1 EBADF (Bad file descriptor) [pid 3754] close(13) = -1 EBADF (Bad file descriptor) [pid 3754] close(14) = -1 EBADF (Bad file descriptor) [pid 3754] close(15) = -1 EBADF (Bad file descriptor) [pid 3754] close(16) = -1 EBADF (Bad file descriptor) [pid 3754] close(17) = -1 EBADF (Bad file descriptor) [pid 3754] close(18) = -1 EBADF (Bad file descriptor) [pid 3754] close(19) = -1 EBADF (Bad file descriptor) [pid 3754] close(20) = -1 EBADF (Bad file descriptor) [pid 3754] close(21) = -1 EBADF (Bad file descriptor) [pid 3754] close(22) = -1 EBADF (Bad file descriptor) [pid 3754] close(23) = -1 EBADF (Bad file descriptor) [pid 3754] close(24) = -1 EBADF (Bad file descriptor) [pid 3754] close(25) = -1 EBADF (Bad file descriptor) [pid 3754] close(26) = -1 EBADF (Bad file descriptor) [pid 3754] close(27) = -1 EBADF (Bad file descriptor) [pid 3754] close(28) = -1 EBADF (Bad file descriptor) [pid 3754] close(29) = -1 EBADF (Bad file descriptor) [pid 3754] exit_group(0) = ? [pid 3754] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=152, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./150", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./150", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./150/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./150/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./150/binderfs") = 0 [pid 3603] umount2("./150/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./150/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./150/cgroup") = 0 [pid 3603] umount2("./150/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./150/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./150/cgroup.net") = 0 [pid 3603] umount2("./150/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./150/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./150/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./150") = 0 [pid 3603] mkdir("./151", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3755 attached , child_tidptr=0x5555567b05d0) = 153 [pid 3755] chdir("./151") = 0 [pid 3755] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3755] setpgid(0, 0) = 0 [pid 3755] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3755] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3755] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3755] write(3, "1000", 4) = 4 [pid 3755] close(3) = 0 [pid 3755] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3755] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3755] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3755] gettid() = 153 [pid 3755] process_vm_writev(153, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3755] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3755] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3755] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3755] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3755] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3755] close(3) = 0 [pid 3755] close(4) = 0 [pid 3755] close(5) = -1 EBADF (Bad file descriptor) [pid 3755] close(6) = -1 EBADF (Bad file descriptor) [pid 3755] close(7) = -1 EBADF (Bad file descriptor) [pid 3755] close(8) = -1 EBADF (Bad file descriptor) [pid 3755] close(9) = -1 EBADF (Bad file descriptor) [pid 3755] close(10) = -1 EBADF (Bad file descriptor) [pid 3755] close(11) = -1 EBADF (Bad file descriptor) [pid 3755] close(12) = -1 EBADF (Bad file descriptor) [pid 3755] close(13) = -1 EBADF (Bad file descriptor) [pid 3755] close(14) = -1 EBADF (Bad file descriptor) [pid 3755] close(15) = -1 EBADF (Bad file descriptor) [pid 3755] close(16) = -1 EBADF (Bad file descriptor) [pid 3755] close(17) = -1 EBADF (Bad file descriptor) [pid 3755] close(18) = -1 EBADF (Bad file descriptor) [pid 3755] close(19) = -1 EBADF (Bad file descriptor) [pid 3755] close(20) = -1 EBADF (Bad file descriptor) [pid 3755] close(21) = -1 EBADF (Bad file descriptor) [pid 3755] close(22) = -1 EBADF (Bad file descriptor) [pid 3755] close(23) = -1 EBADF (Bad file descriptor) [pid 3755] close(24) = -1 EBADF (Bad file descriptor) [pid 3755] close(25) = -1 EBADF (Bad file descriptor) [pid 3755] close(26) = -1 EBADF (Bad file descriptor) [pid 3755] close(27) = -1 EBADF (Bad file descriptor) [pid 3755] close(28) = -1 EBADF (Bad file descriptor) [pid 3755] close(29) = -1 EBADF (Bad file descriptor) [pid 3755] exit_group(0) = ? [pid 3755] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=153, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./151", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./151", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./151/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./151/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./151/binderfs") = 0 [pid 3603] umount2("./151/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./151/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./151/cgroup") = 0 [pid 3603] umount2("./151/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./151/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./151/cgroup.net") = 0 [pid 3603] umount2("./151/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./151/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./151/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./151") = 0 [pid 3603] mkdir("./152", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3756 attached , child_tidptr=0x5555567b05d0) = 154 [pid 3756] chdir("./152") = 0 [pid 3756] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3756] setpgid(0, 0) = 0 [pid 3756] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3756] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3756] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3756] write(3, "1000", 4) = 4 [pid 3756] close(3) = 0 [pid 3756] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3756] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3756] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3756] gettid() = 154 [pid 3756] process_vm_writev(154, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3756] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3756] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3756] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3756] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3756] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3756] close(3) = 0 [pid 3756] close(4) = 0 [pid 3756] close(5) = -1 EBADF (Bad file descriptor) [pid 3756] close(6) = -1 EBADF (Bad file descriptor) [pid 3756] close(7) = -1 EBADF (Bad file descriptor) [pid 3756] close(8) = -1 EBADF (Bad file descriptor) [pid 3756] close(9) = -1 EBADF (Bad file descriptor) [pid 3756] close(10) = -1 EBADF (Bad file descriptor) [pid 3756] close(11) = -1 EBADF (Bad file descriptor) [pid 3756] close(12) = -1 EBADF (Bad file descriptor) [pid 3756] close(13) = -1 EBADF (Bad file descriptor) [pid 3756] close(14) = -1 EBADF (Bad file descriptor) [pid 3756] close(15) = -1 EBADF (Bad file descriptor) [pid 3756] close(16) = -1 EBADF (Bad file descriptor) [pid 3756] close(17) = -1 EBADF (Bad file descriptor) [pid 3756] close(18) = -1 EBADF (Bad file descriptor) [pid 3756] close(19) = -1 EBADF (Bad file descriptor) [pid 3756] close(20) = -1 EBADF (Bad file descriptor) [pid 3756] close(21) = -1 EBADF (Bad file descriptor) [pid 3756] close(22) = -1 EBADF (Bad file descriptor) [pid 3756] close(23) = -1 EBADF (Bad file descriptor) [pid 3756] close(24) = -1 EBADF (Bad file descriptor) [pid 3756] close(25) = -1 EBADF (Bad file descriptor) [pid 3756] close(26) = -1 EBADF (Bad file descriptor) [pid 3756] close(27) = -1 EBADF (Bad file descriptor) [pid 3756] close(28) = -1 EBADF (Bad file descriptor) [pid 3756] close(29) = -1 EBADF (Bad file descriptor) [pid 3756] exit_group(0) = ? [pid 3756] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=154, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./152", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./152", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./152/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./152/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./152/binderfs") = 0 [pid 3603] umount2("./152/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./152/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./152/cgroup") = 0 [pid 3603] umount2("./152/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./152/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./152/cgroup.net") = 0 [pid 3603] umount2("./152/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./152/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./152/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./152") = 0 [pid 3603] mkdir("./153", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3757 attached , child_tidptr=0x5555567b05d0) = 155 [pid 3757] chdir("./153") = 0 [pid 3757] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3757] setpgid(0, 0) = 0 [pid 3757] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3757] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3757] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3757] write(3, "1000", 4) = 4 [pid 3757] close(3) = 0 [pid 3757] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3757] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3757] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3757] gettid() = 155 [pid 3757] process_vm_writev(155, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3757] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3757] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3757] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3757] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3757] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3757] close(3) = 0 [pid 3757] close(4) = 0 [pid 3757] close(5) = -1 EBADF (Bad file descriptor) [pid 3757] close(6) = -1 EBADF (Bad file descriptor) [pid 3757] close(7) = -1 EBADF (Bad file descriptor) [pid 3757] close(8) = -1 EBADF (Bad file descriptor) [pid 3757] close(9) = -1 EBADF (Bad file descriptor) [pid 3757] close(10) = -1 EBADF (Bad file descriptor) [pid 3757] close(11) = -1 EBADF (Bad file descriptor) [pid 3757] close(12) = -1 EBADF (Bad file descriptor) [pid 3757] close(13) = -1 EBADF (Bad file descriptor) [pid 3757] close(14) = -1 EBADF (Bad file descriptor) [pid 3757] close(15) = -1 EBADF (Bad file descriptor) [pid 3757] close(16) = -1 EBADF (Bad file descriptor) [pid 3757] close(17) = -1 EBADF (Bad file descriptor) [pid 3757] close(18) = -1 EBADF (Bad file descriptor) [pid 3757] close(19) = -1 EBADF (Bad file descriptor) [pid 3757] close(20) = -1 EBADF (Bad file descriptor) [pid 3757] close(21) = -1 EBADF (Bad file descriptor) [pid 3757] close(22) = -1 EBADF (Bad file descriptor) [pid 3757] close(23) = -1 EBADF (Bad file descriptor) [pid 3757] close(24) = -1 EBADF (Bad file descriptor) [pid 3757] close(25) = -1 EBADF (Bad file descriptor) [pid 3757] close(26) = -1 EBADF (Bad file descriptor) [pid 3757] close(27) = -1 EBADF (Bad file descriptor) [pid 3757] close(28) = -1 EBADF (Bad file descriptor) [pid 3757] close(29) = -1 EBADF (Bad file descriptor) [pid 3757] exit_group(0) = ? [pid 3757] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=155, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./153", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./153", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./153/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./153/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./153/binderfs") = 0 [pid 3603] umount2("./153/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./153/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./153/cgroup") = 0 [pid 3603] umount2("./153/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./153/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./153/cgroup.net") = 0 [pid 3603] umount2("./153/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./153/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./153/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./153") = 0 [pid 3603] mkdir("./154", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 156 ./strace-static-x86_64: Process 3758 attached [pid 3758] chdir("./154") = 0 [pid 3758] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3758] setpgid(0, 0) = 0 [pid 3758] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3758] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3758] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3758] write(3, "1000", 4) = 4 [pid 3758] close(3) = 0 [pid 3758] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3758] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3758] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3758] gettid() = 156 [pid 3758] process_vm_writev(156, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3758] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3758] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3758] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3758] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3758] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3758] close(3) = 0 [pid 3758] close(4) = 0 [pid 3758] close(5) = -1 EBADF (Bad file descriptor) [pid 3758] close(6) = -1 EBADF (Bad file descriptor) [pid 3758] close(7) = -1 EBADF (Bad file descriptor) [pid 3758] close(8) = -1 EBADF (Bad file descriptor) [pid 3758] close(9) = -1 EBADF (Bad file descriptor) [pid 3758] close(10) = -1 EBADF (Bad file descriptor) [pid 3758] close(11) = -1 EBADF (Bad file descriptor) [pid 3758] close(12) = -1 EBADF (Bad file descriptor) [pid 3758] close(13) = -1 EBADF (Bad file descriptor) [pid 3758] close(14) = -1 EBADF (Bad file descriptor) [pid 3758] close(15) = -1 EBADF (Bad file descriptor) [pid 3758] close(16) = -1 EBADF (Bad file descriptor) [pid 3758] close(17) = -1 EBADF (Bad file descriptor) [pid 3758] close(18) = -1 EBADF (Bad file descriptor) [pid 3758] close(19) = -1 EBADF (Bad file descriptor) [pid 3758] close(20) = -1 EBADF (Bad file descriptor) [pid 3758] close(21) = -1 EBADF (Bad file descriptor) [pid 3758] close(22) = -1 EBADF (Bad file descriptor) [pid 3758] close(23) = -1 EBADF (Bad file descriptor) [pid 3758] close(24) = -1 EBADF (Bad file descriptor) [pid 3758] close(25) = -1 EBADF (Bad file descriptor) [pid 3758] close(26) = -1 EBADF (Bad file descriptor) [pid 3758] close(27) = -1 EBADF (Bad file descriptor) [pid 3758] close(28) = -1 EBADF (Bad file descriptor) [pid 3758] close(29) = -1 EBADF (Bad file descriptor) [pid 3758] exit_group(0) = ? [pid 3758] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=156, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./154", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./154", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./154/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./154/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./154/binderfs") = 0 [pid 3603] umount2("./154/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./154/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./154/cgroup") = 0 [pid 3603] umount2("./154/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./154/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./154/cgroup.net") = 0 [pid 3603] umount2("./154/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./154/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./154/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./154") = 0 [pid 3603] mkdir("./155", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3759 attached [pid 3759] chdir("./155") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 157 [pid 3759] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3759] setpgid(0, 0) = 0 [pid 3759] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3759] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3759] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3759] write(3, "1000", 4) = 4 [pid 3759] close(3) = 0 [pid 3759] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3759] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3759] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3759] gettid() = 157 [pid 3759] process_vm_writev(157, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3759] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3759] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3759] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3759] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3759] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3759] close(3) = 0 [pid 3759] close(4) = 0 [pid 3759] close(5) = -1 EBADF (Bad file descriptor) [pid 3759] close(6) = -1 EBADF (Bad file descriptor) [pid 3759] close(7) = -1 EBADF (Bad file descriptor) [pid 3759] close(8) = -1 EBADF (Bad file descriptor) [pid 3759] close(9) = -1 EBADF (Bad file descriptor) [pid 3759] close(10) = -1 EBADF (Bad file descriptor) [pid 3759] close(11) = -1 EBADF (Bad file descriptor) [pid 3759] close(12) = -1 EBADF (Bad file descriptor) [pid 3759] close(13) = -1 EBADF (Bad file descriptor) [pid 3759] close(14) = -1 EBADF (Bad file descriptor) [pid 3759] close(15) = -1 EBADF (Bad file descriptor) [pid 3759] close(16) = -1 EBADF (Bad file descriptor) [pid 3759] close(17) = -1 EBADF (Bad file descriptor) [pid 3759] close(18) = -1 EBADF (Bad file descriptor) [pid 3759] close(19) = -1 EBADF (Bad file descriptor) [pid 3759] close(20) = -1 EBADF (Bad file descriptor) [pid 3759] close(21) = -1 EBADF (Bad file descriptor) [pid 3759] close(22) = -1 EBADF (Bad file descriptor) [pid 3759] close(23) = -1 EBADF (Bad file descriptor) [pid 3759] close(24) = -1 EBADF (Bad file descriptor) [pid 3759] close(25) = -1 EBADF (Bad file descriptor) [pid 3759] close(26) = -1 EBADF (Bad file descriptor) [pid 3759] close(27) = -1 EBADF (Bad file descriptor) [pid 3759] close(28) = -1 EBADF (Bad file descriptor) [pid 3759] close(29) = -1 EBADF (Bad file descriptor) [pid 3759] exit_group(0) = ? [pid 3759] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=157, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./155", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./155", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./155/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./155/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./155/binderfs") = 0 [pid 3603] umount2("./155/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./155/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./155/cgroup") = 0 [pid 3603] umount2("./155/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./155/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./155/cgroup.net") = 0 [pid 3603] umount2("./155/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./155/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./155/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./155") = 0 [pid 3603] mkdir("./156", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3760 attached , child_tidptr=0x5555567b05d0) = 158 [pid 3760] chdir("./156") = 0 [pid 3760] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3760] setpgid(0, 0) = 0 [pid 3760] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3760] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3760] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3760] write(3, "1000", 4) = 4 [pid 3760] close(3) = 0 [pid 3760] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3760] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3760] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3760] gettid() = 158 [pid 3760] process_vm_writev(158, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3760] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3760] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3760] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3760] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3760] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3760] close(3) = 0 [pid 3760] close(4) = 0 [pid 3760] close(5) = -1 EBADF (Bad file descriptor) [pid 3760] close(6) = -1 EBADF (Bad file descriptor) [pid 3760] close(7) = -1 EBADF (Bad file descriptor) [pid 3760] close(8) = -1 EBADF (Bad file descriptor) [pid 3760] close(9) = -1 EBADF (Bad file descriptor) [pid 3760] close(10) = -1 EBADF (Bad file descriptor) [pid 3760] close(11) = -1 EBADF (Bad file descriptor) [pid 3760] close(12) = -1 EBADF (Bad file descriptor) [pid 3760] close(13) = -1 EBADF (Bad file descriptor) [pid 3760] close(14) = -1 EBADF (Bad file descriptor) [pid 3760] close(15) = -1 EBADF (Bad file descriptor) [pid 3760] close(16) = -1 EBADF (Bad file descriptor) [pid 3760] close(17) = -1 EBADF (Bad file descriptor) [pid 3760] close(18) = -1 EBADF (Bad file descriptor) [pid 3760] close(19) = -1 EBADF (Bad file descriptor) [pid 3760] close(20) = -1 EBADF (Bad file descriptor) [pid 3760] close(21) = -1 EBADF (Bad file descriptor) [pid 3760] close(22) = -1 EBADF (Bad file descriptor) [pid 3760] close(23) = -1 EBADF (Bad file descriptor) [pid 3760] close(24) = -1 EBADF (Bad file descriptor) [pid 3760] close(25) = -1 EBADF (Bad file descriptor) [pid 3760] close(26) = -1 EBADF (Bad file descriptor) [pid 3760] close(27) = -1 EBADF (Bad file descriptor) [pid 3760] close(28) = -1 EBADF (Bad file descriptor) [pid 3760] close(29) = -1 EBADF (Bad file descriptor) [pid 3760] exit_group(0) = ? [pid 3760] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=158, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./156", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./156", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./156/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./156/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./156/binderfs") = 0 [pid 3603] umount2("./156/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./156/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./156/cgroup") = 0 [pid 3603] umount2("./156/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./156/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./156/cgroup.net") = 0 [pid 3603] umount2("./156/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./156/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./156/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./156") = 0 [pid 3603] mkdir("./157", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3761 attached , child_tidptr=0x5555567b05d0) = 159 [pid 3761] chdir("./157") = 0 [pid 3761] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3761] setpgid(0, 0) = 0 [pid 3761] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3761] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3761] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3761] write(3, "1000", 4) = 4 [pid 3761] close(3) = 0 [pid 3761] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3761] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3761] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3761] gettid() = 159 [pid 3761] process_vm_writev(159, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3761] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3761] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3761] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3761] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3761] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3761] close(3) = 0 [pid 3761] close(4) = 0 [pid 3761] close(5) = -1 EBADF (Bad file descriptor) [pid 3761] close(6) = -1 EBADF (Bad file descriptor) [pid 3761] close(7) = -1 EBADF (Bad file descriptor) [pid 3761] close(8) = -1 EBADF (Bad file descriptor) [pid 3761] close(9) = -1 EBADF (Bad file descriptor) [pid 3761] close(10) = -1 EBADF (Bad file descriptor) [pid 3761] close(11) = -1 EBADF (Bad file descriptor) [pid 3761] close(12) = -1 EBADF (Bad file descriptor) [pid 3761] close(13) = -1 EBADF (Bad file descriptor) [pid 3761] close(14) = -1 EBADF (Bad file descriptor) [pid 3761] close(15) = -1 EBADF (Bad file descriptor) [pid 3761] close(16) = -1 EBADF (Bad file descriptor) [pid 3761] close(17) = -1 EBADF (Bad file descriptor) [pid 3761] close(18) = -1 EBADF (Bad file descriptor) [pid 3761] close(19) = -1 EBADF (Bad file descriptor) [pid 3761] close(20) = -1 EBADF (Bad file descriptor) [pid 3761] close(21) = -1 EBADF (Bad file descriptor) [pid 3761] close(22) = -1 EBADF (Bad file descriptor) [pid 3761] close(23) = -1 EBADF (Bad file descriptor) [pid 3761] close(24) = -1 EBADF (Bad file descriptor) [pid 3761] close(25) = -1 EBADF (Bad file descriptor) [pid 3761] close(26) = -1 EBADF (Bad file descriptor) [pid 3761] close(27) = -1 EBADF (Bad file descriptor) [pid 3761] close(28) = -1 EBADF (Bad file descriptor) [pid 3761] close(29) = -1 EBADF (Bad file descriptor) [pid 3761] exit_group(0) = ? [pid 3761] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=159, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./157", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./157", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./157/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./157/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./157/binderfs") = 0 [pid 3603] umount2("./157/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./157/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./157/cgroup") = 0 [pid 3603] umount2("./157/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./157/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./157/cgroup.net") = 0 [pid 3603] umount2("./157/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./157/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./157/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./157") = 0 [pid 3603] mkdir("./158", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3762 attached , child_tidptr=0x5555567b05d0) = 160 [pid 3762] chdir("./158") = 0 [pid 3762] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3762] setpgid(0, 0) = 0 [pid 3762] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3762] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3762] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3762] write(3, "1000", 4) = 4 [pid 3762] close(3) = 0 [pid 3762] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3762] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3762] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3762] gettid() = 160 [pid 3762] process_vm_writev(160, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3762] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3762] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3762] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3762] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3762] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3762] close(3) = 0 [pid 3762] close(4) = 0 [pid 3762] close(5) = -1 EBADF (Bad file descriptor) [pid 3762] close(6) = -1 EBADF (Bad file descriptor) [pid 3762] close(7) = -1 EBADF (Bad file descriptor) [pid 3762] close(8) = -1 EBADF (Bad file descriptor) [pid 3762] close(9) = -1 EBADF (Bad file descriptor) [pid 3762] close(10) = -1 EBADF (Bad file descriptor) [pid 3762] close(11) = -1 EBADF (Bad file descriptor) [pid 3762] close(12) = -1 EBADF (Bad file descriptor) [pid 3762] close(13) = -1 EBADF (Bad file descriptor) [pid 3762] close(14) = -1 EBADF (Bad file descriptor) [pid 3762] close(15) = -1 EBADF (Bad file descriptor) [pid 3762] close(16) = -1 EBADF (Bad file descriptor) [pid 3762] close(17) = -1 EBADF (Bad file descriptor) [pid 3762] close(18) = -1 EBADF (Bad file descriptor) [pid 3762] close(19) = -1 EBADF (Bad file descriptor) [pid 3762] close(20) = -1 EBADF (Bad file descriptor) [pid 3762] close(21) = -1 EBADF (Bad file descriptor) [pid 3762] close(22) = -1 EBADF (Bad file descriptor) [pid 3762] close(23) = -1 EBADF (Bad file descriptor) [pid 3762] close(24) = -1 EBADF (Bad file descriptor) [pid 3762] close(25) = -1 EBADF (Bad file descriptor) [pid 3762] close(26) = -1 EBADF (Bad file descriptor) [pid 3762] close(27) = -1 EBADF (Bad file descriptor) [pid 3762] close(28) = -1 EBADF (Bad file descriptor) [pid 3762] close(29) = -1 EBADF (Bad file descriptor) [pid 3762] exit_group(0) = ? [pid 3762] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=160, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./158", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./158", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./158/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./158/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./158/binderfs") = 0 [pid 3603] umount2("./158/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./158/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./158/cgroup") = 0 [pid 3603] umount2("./158/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./158/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./158/cgroup.net") = 0 [pid 3603] umount2("./158/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./158/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./158/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./158") = 0 [pid 3603] mkdir("./159", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3763 attached , child_tidptr=0x5555567b05d0) = 161 [pid 3763] chdir("./159") = 0 [pid 3763] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3763] setpgid(0, 0) = 0 [pid 3763] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3763] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3763] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3763] write(3, "1000", 4) = 4 [pid 3763] close(3) = 0 [pid 3763] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3763] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3763] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3763] gettid() = 161 [pid 3763] process_vm_writev(161, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3763] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3763] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3763] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3763] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3763] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3763] close(3) = 0 [pid 3763] close(4) = 0 [pid 3763] close(5) = -1 EBADF (Bad file descriptor) [pid 3763] close(6) = -1 EBADF (Bad file descriptor) [pid 3763] close(7) = -1 EBADF (Bad file descriptor) [pid 3763] close(8) = -1 EBADF (Bad file descriptor) [pid 3763] close(9) = -1 EBADF (Bad file descriptor) [pid 3763] close(10) = -1 EBADF (Bad file descriptor) [pid 3763] close(11) = -1 EBADF (Bad file descriptor) [pid 3763] close(12) = -1 EBADF (Bad file descriptor) [pid 3763] close(13) = -1 EBADF (Bad file descriptor) [pid 3763] close(14) = -1 EBADF (Bad file descriptor) [pid 3763] close(15) = -1 EBADF (Bad file descriptor) [pid 3763] close(16) = -1 EBADF (Bad file descriptor) [pid 3763] close(17) = -1 EBADF (Bad file descriptor) [pid 3763] close(18) = -1 EBADF (Bad file descriptor) [pid 3763] close(19) = -1 EBADF (Bad file descriptor) [pid 3763] close(20) = -1 EBADF (Bad file descriptor) [pid 3763] close(21) = -1 EBADF (Bad file descriptor) [pid 3763] close(22) = -1 EBADF (Bad file descriptor) [pid 3763] close(23) = -1 EBADF (Bad file descriptor) [pid 3763] close(24) = -1 EBADF (Bad file descriptor) [pid 3763] close(25) = -1 EBADF (Bad file descriptor) [pid 3763] close(26) = -1 EBADF (Bad file descriptor) [pid 3763] close(27) = -1 EBADF (Bad file descriptor) [pid 3763] close(28) = -1 EBADF (Bad file descriptor) [pid 3763] close(29) = -1 EBADF (Bad file descriptor) [pid 3763] exit_group(0) = ? [pid 3763] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=161, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./159", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./159", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./159/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./159/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./159/binderfs") = 0 [pid 3603] umount2("./159/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./159/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./159/cgroup") = 0 [pid 3603] umount2("./159/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./159/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./159/cgroup.net") = 0 [pid 3603] umount2("./159/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./159/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./159/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./159") = 0 [pid 3603] mkdir("./160", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3764 attached , child_tidptr=0x5555567b05d0) = 162 [pid 3764] chdir("./160") = 0 [pid 3764] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3764] setpgid(0, 0) = 0 [pid 3764] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3764] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3764] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3764] write(3, "1000", 4) = 4 [pid 3764] close(3) = 0 [pid 3764] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3764] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3764] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3764] gettid() = 162 [pid 3764] process_vm_writev(162, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3764] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3764] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3764] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3764] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3764] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3764] close(3) = 0 [pid 3764] close(4) = 0 [pid 3764] close(5) = -1 EBADF (Bad file descriptor) [pid 3764] close(6) = -1 EBADF (Bad file descriptor) [pid 3764] close(7) = -1 EBADF (Bad file descriptor) [pid 3764] close(8) = -1 EBADF (Bad file descriptor) [pid 3764] close(9) = -1 EBADF (Bad file descriptor) [pid 3764] close(10) = -1 EBADF (Bad file descriptor) [pid 3764] close(11) = -1 EBADF (Bad file descriptor) [pid 3764] close(12) = -1 EBADF (Bad file descriptor) [pid 3764] close(13) = -1 EBADF (Bad file descriptor) [pid 3764] close(14) = -1 EBADF (Bad file descriptor) [pid 3764] close(15) = -1 EBADF (Bad file descriptor) [pid 3764] close(16) = -1 EBADF (Bad file descriptor) [pid 3764] close(17) = -1 EBADF (Bad file descriptor) [pid 3764] close(18) = -1 EBADF (Bad file descriptor) [pid 3764] close(19) = -1 EBADF (Bad file descriptor) [pid 3764] close(20) = -1 EBADF (Bad file descriptor) [pid 3764] close(21) = -1 EBADF (Bad file descriptor) [pid 3764] close(22) = -1 EBADF (Bad file descriptor) [pid 3764] close(23) = -1 EBADF (Bad file descriptor) [pid 3764] close(24) = -1 EBADF (Bad file descriptor) [pid 3764] close(25) = -1 EBADF (Bad file descriptor) [pid 3764] close(26) = -1 EBADF (Bad file descriptor) [pid 3764] close(27) = -1 EBADF (Bad file descriptor) [pid 3764] close(28) = -1 EBADF (Bad file descriptor) [pid 3764] close(29) = -1 EBADF (Bad file descriptor) [pid 3764] exit_group(0) = ? [pid 3764] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=162, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./160", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./160", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./160/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./160/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./160/binderfs") = 0 [pid 3603] umount2("./160/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./160/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./160/cgroup") = 0 [pid 3603] umount2("./160/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./160/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./160/cgroup.net") = 0 [pid 3603] umount2("./160/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./160/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./160/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./160") = 0 [pid 3603] mkdir("./161", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3765 attached , child_tidptr=0x5555567b05d0) = 163 [pid 3765] chdir("./161") = 0 [pid 3765] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3765] setpgid(0, 0) = 0 [pid 3765] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3765] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3765] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3765] write(3, "1000", 4) = 4 [pid 3765] close(3) = 0 [pid 3765] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3765] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3765] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3765] gettid() = 163 [pid 3765] process_vm_writev(163, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3765] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3765] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3765] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3765] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3765] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3765] close(3) = 0 [pid 3765] close(4) = 0 [pid 3765] close(5) = -1 EBADF (Bad file descriptor) [pid 3765] close(6) = -1 EBADF (Bad file descriptor) [pid 3765] close(7) = -1 EBADF (Bad file descriptor) [pid 3765] close(8) = -1 EBADF (Bad file descriptor) [pid 3765] close(9) = -1 EBADF (Bad file descriptor) [pid 3765] close(10) = -1 EBADF (Bad file descriptor) [pid 3765] close(11) = -1 EBADF (Bad file descriptor) [pid 3765] close(12) = -1 EBADF (Bad file descriptor) [pid 3765] close(13) = -1 EBADF (Bad file descriptor) [pid 3765] close(14) = -1 EBADF (Bad file descriptor) [pid 3765] close(15) = -1 EBADF (Bad file descriptor) [pid 3765] close(16) = -1 EBADF (Bad file descriptor) [pid 3765] close(17) = -1 EBADF (Bad file descriptor) [pid 3765] close(18) = -1 EBADF (Bad file descriptor) [pid 3765] close(19) = -1 EBADF (Bad file descriptor) [pid 3765] close(20) = -1 EBADF (Bad file descriptor) [pid 3765] close(21) = -1 EBADF (Bad file descriptor) [pid 3765] close(22) = -1 EBADF (Bad file descriptor) [pid 3765] close(23) = -1 EBADF (Bad file descriptor) [pid 3765] close(24) = -1 EBADF (Bad file descriptor) [pid 3765] close(25) = -1 EBADF (Bad file descriptor) [pid 3765] close(26) = -1 EBADF (Bad file descriptor) [pid 3765] close(27) = -1 EBADF (Bad file descriptor) [pid 3765] close(28) = -1 EBADF (Bad file descriptor) [pid 3765] close(29) = -1 EBADF (Bad file descriptor) [pid 3765] exit_group(0) = ? [pid 3765] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=163, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./161", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./161", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./161/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./161/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./161/binderfs") = 0 [pid 3603] umount2("./161/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./161/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./161/cgroup") = 0 [pid 3603] umount2("./161/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./161/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./161/cgroup.net") = 0 [pid 3603] umount2("./161/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./161/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./161/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./161") = 0 [pid 3603] mkdir("./162", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 164 ./strace-static-x86_64: Process 3766 attached [pid 3766] chdir("./162") = 0 [pid 3766] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3766] setpgid(0, 0) = 0 [pid 3766] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3766] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3766] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3766] write(3, "1000", 4) = 4 [pid 3766] close(3) = 0 [pid 3766] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3766] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3766] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3766] gettid() = 164 [pid 3766] process_vm_writev(164, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3766] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3766] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3766] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3766] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3766] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3766] close(3) = 0 [pid 3766] close(4) = 0 [pid 3766] close(5) = -1 EBADF (Bad file descriptor) [pid 3766] close(6) = -1 EBADF (Bad file descriptor) [pid 3766] close(7) = -1 EBADF (Bad file descriptor) [pid 3766] close(8) = -1 EBADF (Bad file descriptor) [pid 3766] close(9) = -1 EBADF (Bad file descriptor) [pid 3766] close(10) = -1 EBADF (Bad file descriptor) [pid 3766] close(11) = -1 EBADF (Bad file descriptor) [pid 3766] close(12) = -1 EBADF (Bad file descriptor) [pid 3766] close(13) = -1 EBADF (Bad file descriptor) [pid 3766] close(14) = -1 EBADF (Bad file descriptor) [pid 3766] close(15) = -1 EBADF (Bad file descriptor) [pid 3766] close(16) = -1 EBADF (Bad file descriptor) [pid 3766] close(17) = -1 EBADF (Bad file descriptor) [pid 3766] close(18) = -1 EBADF (Bad file descriptor) [pid 3766] close(19) = -1 EBADF (Bad file descriptor) [pid 3766] close(20) = -1 EBADF (Bad file descriptor) [pid 3766] close(21) = -1 EBADF (Bad file descriptor) [pid 3766] close(22) = -1 EBADF (Bad file descriptor) [pid 3766] close(23) = -1 EBADF (Bad file descriptor) [pid 3766] close(24) = -1 EBADF (Bad file descriptor) [pid 3766] close(25) = -1 EBADF (Bad file descriptor) [pid 3766] close(26) = -1 EBADF (Bad file descriptor) [pid 3766] close(27) = -1 EBADF (Bad file descriptor) [pid 3766] close(28) = -1 EBADF (Bad file descriptor) [pid 3766] close(29) = -1 EBADF (Bad file descriptor) [pid 3766] exit_group(0) = ? [pid 3766] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=164, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./162", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./162", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./162/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./162/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./162/binderfs") = 0 [pid 3603] umount2("./162/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./162/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./162/cgroup") = 0 [pid 3603] umount2("./162/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./162/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./162/cgroup.net") = 0 [pid 3603] umount2("./162/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./162/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./162/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./162") = 0 [pid 3603] mkdir("./163", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 165 ./strace-static-x86_64: Process 3767 attached [pid 3767] chdir("./163") = 0 [pid 3767] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3767] setpgid(0, 0) = 0 [pid 3767] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3767] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3767] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3767] write(3, "1000", 4) = 4 [pid 3767] close(3) = 0 [pid 3767] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3767] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3767] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3767] gettid() = 165 [pid 3767] process_vm_writev(165, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3767] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3767] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3767] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3767] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3767] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3767] close(3) = 0 [pid 3767] close(4) = 0 [pid 3767] close(5) = -1 EBADF (Bad file descriptor) [pid 3767] close(6) = -1 EBADF (Bad file descriptor) [pid 3767] close(7) = -1 EBADF (Bad file descriptor) [pid 3767] close(8) = -1 EBADF (Bad file descriptor) [pid 3767] close(9) = -1 EBADF (Bad file descriptor) [pid 3767] close(10) = -1 EBADF (Bad file descriptor) [pid 3767] close(11) = -1 EBADF (Bad file descriptor) [pid 3767] close(12) = -1 EBADF (Bad file descriptor) [pid 3767] close(13) = -1 EBADF (Bad file descriptor) [pid 3767] close(14) = -1 EBADF (Bad file descriptor) [pid 3767] close(15) = -1 EBADF (Bad file descriptor) [pid 3767] close(16) = -1 EBADF (Bad file descriptor) [pid 3767] close(17) = -1 EBADF (Bad file descriptor) [pid 3767] close(18) = -1 EBADF (Bad file descriptor) [pid 3767] close(19) = -1 EBADF (Bad file descriptor) [pid 3767] close(20) = -1 EBADF (Bad file descriptor) [pid 3767] close(21) = -1 EBADF (Bad file descriptor) [pid 3767] close(22) = -1 EBADF (Bad file descriptor) [pid 3767] close(23) = -1 EBADF (Bad file descriptor) [pid 3767] close(24) = -1 EBADF (Bad file descriptor) [pid 3767] close(25) = -1 EBADF (Bad file descriptor) [pid 3767] close(26) = -1 EBADF (Bad file descriptor) [pid 3767] close(27) = -1 EBADF (Bad file descriptor) [pid 3767] close(28) = -1 EBADF (Bad file descriptor) [pid 3767] close(29) = -1 EBADF (Bad file descriptor) [pid 3767] exit_group(0) = ? [pid 3767] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=165, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3603] umount2("./163", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./163", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./163/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./163/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./163/binderfs") = 0 [pid 3603] umount2("./163/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./163/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./163/cgroup") = 0 [pid 3603] umount2("./163/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./163/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./163/cgroup.net") = 0 [pid 3603] umount2("./163/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./163/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./163/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./163") = 0 [pid 3603] mkdir("./164", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3768 attached [pid 3768] chdir("./164") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 166 [pid 3768] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3768] setpgid(0, 0) = 0 [pid 3768] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3768] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3768] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3768] write(3, "1000", 4) = 4 [pid 3768] close(3) = 0 [pid 3768] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3768] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3768] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3768] gettid() = 166 [pid 3768] process_vm_writev(166, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3768] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3768] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3768] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3768] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3768] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3768] close(3) = 0 [pid 3768] close(4) = 0 [pid 3768] close(5) = -1 EBADF (Bad file descriptor) [pid 3768] close(6) = -1 EBADF (Bad file descriptor) [pid 3768] close(7) = -1 EBADF (Bad file descriptor) [pid 3768] close(8) = -1 EBADF (Bad file descriptor) [pid 3768] close(9) = -1 EBADF (Bad file descriptor) [pid 3768] close(10) = -1 EBADF (Bad file descriptor) [pid 3768] close(11) = -1 EBADF (Bad file descriptor) [pid 3768] close(12) = -1 EBADF (Bad file descriptor) [pid 3768] close(13) = -1 EBADF (Bad file descriptor) [pid 3768] close(14) = -1 EBADF (Bad file descriptor) [pid 3768] close(15) = -1 EBADF (Bad file descriptor) [pid 3768] close(16) = -1 EBADF (Bad file descriptor) [pid 3768] close(17) = -1 EBADF (Bad file descriptor) [pid 3768] close(18) = -1 EBADF (Bad file descriptor) [pid 3768] close(19) = -1 EBADF (Bad file descriptor) [pid 3768] close(20) = -1 EBADF (Bad file descriptor) [pid 3768] close(21) = -1 EBADF (Bad file descriptor) [pid 3768] close(22) = -1 EBADF (Bad file descriptor) [pid 3768] close(23) = -1 EBADF (Bad file descriptor) [pid 3768] close(24) = -1 EBADF (Bad file descriptor) [pid 3768] close(25) = -1 EBADF (Bad file descriptor) [pid 3768] close(26) = -1 EBADF (Bad file descriptor) [pid 3768] close(27) = -1 EBADF (Bad file descriptor) [pid 3768] close(28) = -1 EBADF (Bad file descriptor) [pid 3768] close(29) = -1 EBADF (Bad file descriptor) [pid 3768] exit_group(0) = ? [pid 3768] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=166, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./164", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./164", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./164/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./164/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./164/binderfs") = 0 [pid 3603] umount2("./164/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./164/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./164/cgroup") = 0 [pid 3603] umount2("./164/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./164/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./164/cgroup.net") = 0 [pid 3603] umount2("./164/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./164/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./164/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./164") = 0 [pid 3603] mkdir("./165", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3769 attached , child_tidptr=0x5555567b05d0) = 167 [pid 3769] chdir("./165") = 0 [pid 3769] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3769] setpgid(0, 0) = 0 [pid 3769] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3769] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3769] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3769] write(3, "1000", 4) = 4 [pid 3769] close(3) = 0 [pid 3769] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3769] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3769] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3769] gettid() = 167 [pid 3769] process_vm_writev(167, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3769] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3769] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3769] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3769] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3769] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3769] close(3) = 0 [pid 3769] close(4) = 0 [pid 3769] close(5) = -1 EBADF (Bad file descriptor) [pid 3769] close(6) = -1 EBADF (Bad file descriptor) [pid 3769] close(7) = -1 EBADF (Bad file descriptor) [pid 3769] close(8) = -1 EBADF (Bad file descriptor) [pid 3769] close(9) = -1 EBADF (Bad file descriptor) [pid 3769] close(10) = -1 EBADF (Bad file descriptor) [pid 3769] close(11) = -1 EBADF (Bad file descriptor) [pid 3769] close(12) = -1 EBADF (Bad file descriptor) [pid 3769] close(13) = -1 EBADF (Bad file descriptor) [pid 3769] close(14) = -1 EBADF (Bad file descriptor) [pid 3769] close(15) = -1 EBADF (Bad file descriptor) [pid 3769] close(16) = -1 EBADF (Bad file descriptor) [pid 3769] close(17) = -1 EBADF (Bad file descriptor) [pid 3769] close(18) = -1 EBADF (Bad file descriptor) [pid 3769] close(19) = -1 EBADF (Bad file descriptor) [pid 3769] close(20) = -1 EBADF (Bad file descriptor) [pid 3769] close(21) = -1 EBADF (Bad file descriptor) [pid 3769] close(22) = -1 EBADF (Bad file descriptor) [pid 3769] close(23) = -1 EBADF (Bad file descriptor) [pid 3769] close(24) = -1 EBADF (Bad file descriptor) [pid 3769] close(25) = -1 EBADF (Bad file descriptor) [pid 3769] close(26) = -1 EBADF (Bad file descriptor) [pid 3769] close(27) = -1 EBADF (Bad file descriptor) [pid 3769] close(28) = -1 EBADF (Bad file descriptor) [pid 3769] close(29) = -1 EBADF (Bad file descriptor) [pid 3769] exit_group(0) = ? [pid 3769] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=167, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./165", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./165", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./165/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./165/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./165/binderfs") = 0 [pid 3603] umount2("./165/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./165/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./165/cgroup") = 0 [pid 3603] umount2("./165/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./165/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./165/cgroup.net") = 0 [pid 3603] umount2("./165/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./165/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./165/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./165") = 0 [pid 3603] mkdir("./166", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 168 ./strace-static-x86_64: Process 3770 attached [pid 3770] chdir("./166") = 0 [pid 3770] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3770] setpgid(0, 0) = 0 [pid 3770] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3770] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3770] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3770] write(3, "1000", 4) = 4 [pid 3770] close(3) = 0 [pid 3770] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3770] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3770] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3770] gettid() = 168 [pid 3770] process_vm_writev(168, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3770] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3770] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3770] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3770] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3770] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3770] close(3) = 0 [pid 3770] close(4) = 0 [pid 3770] close(5) = -1 EBADF (Bad file descriptor) [pid 3770] close(6) = -1 EBADF (Bad file descriptor) [pid 3770] close(7) = -1 EBADF (Bad file descriptor) [pid 3770] close(8) = -1 EBADF (Bad file descriptor) [pid 3770] close(9) = -1 EBADF (Bad file descriptor) [pid 3770] close(10) = -1 EBADF (Bad file descriptor) [pid 3770] close(11) = -1 EBADF (Bad file descriptor) [pid 3770] close(12) = -1 EBADF (Bad file descriptor) [pid 3770] close(13) = -1 EBADF (Bad file descriptor) [pid 3770] close(14) = -1 EBADF (Bad file descriptor) [pid 3770] close(15) = -1 EBADF (Bad file descriptor) [pid 3770] close(16) = -1 EBADF (Bad file descriptor) [pid 3770] close(17) = -1 EBADF (Bad file descriptor) [pid 3770] close(18) = -1 EBADF (Bad file descriptor) [pid 3770] close(19) = -1 EBADF (Bad file descriptor) [pid 3770] close(20) = -1 EBADF (Bad file descriptor) [pid 3770] close(21) = -1 EBADF (Bad file descriptor) [pid 3770] close(22) = -1 EBADF (Bad file descriptor) [pid 3770] close(23) = -1 EBADF (Bad file descriptor) [pid 3770] close(24) = -1 EBADF (Bad file descriptor) [pid 3770] close(25) = -1 EBADF (Bad file descriptor) [pid 3770] close(26) = -1 EBADF (Bad file descriptor) [pid 3770] close(27) = -1 EBADF (Bad file descriptor) [pid 3770] close(28) = -1 EBADF (Bad file descriptor) [pid 3770] close(29) = -1 EBADF (Bad file descriptor) [pid 3770] exit_group(0) = ? [pid 3770] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=168, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./166", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./166", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./166/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./166/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./166/binderfs") = 0 [pid 3603] umount2("./166/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./166/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./166/cgroup") = 0 [pid 3603] umount2("./166/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./166/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./166/cgroup.net") = 0 [pid 3603] umount2("./166/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./166/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./166/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./166") = 0 [pid 3603] mkdir("./167", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3771 attached [pid 3771] chdir("./167") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 169 [pid 3771] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3771] setpgid(0, 0) = 0 [pid 3771] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3771] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3771] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3771] write(3, "1000", 4) = 4 [pid 3771] close(3) = 0 [pid 3771] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3771] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3771] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3771] gettid() = 169 [pid 3771] process_vm_writev(169, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3771] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3771] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3771] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3771] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3771] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3771] close(3) = 0 [pid 3771] close(4) = 0 [pid 3771] close(5) = -1 EBADF (Bad file descriptor) [pid 3771] close(6) = -1 EBADF (Bad file descriptor) [pid 3771] close(7) = -1 EBADF (Bad file descriptor) [pid 3771] close(8) = -1 EBADF (Bad file descriptor) [pid 3771] close(9) = -1 EBADF (Bad file descriptor) [pid 3771] close(10) = -1 EBADF (Bad file descriptor) [pid 3771] close(11) = -1 EBADF (Bad file descriptor) [pid 3771] close(12) = -1 EBADF (Bad file descriptor) [pid 3771] close(13) = -1 EBADF (Bad file descriptor) [pid 3771] close(14) = -1 EBADF (Bad file descriptor) [pid 3771] close(15) = -1 EBADF (Bad file descriptor) [pid 3771] close(16) = -1 EBADF (Bad file descriptor) [pid 3771] close(17) = -1 EBADF (Bad file descriptor) [pid 3771] close(18) = -1 EBADF (Bad file descriptor) [pid 3771] close(19) = -1 EBADF (Bad file descriptor) [pid 3771] close(20) = -1 EBADF (Bad file descriptor) [pid 3771] close(21) = -1 EBADF (Bad file descriptor) [pid 3771] close(22) = -1 EBADF (Bad file descriptor) [pid 3771] close(23) = -1 EBADF (Bad file descriptor) [pid 3771] close(24) = -1 EBADF (Bad file descriptor) [pid 3771] close(25) = -1 EBADF (Bad file descriptor) [pid 3771] close(26) = -1 EBADF (Bad file descriptor) [pid 3771] close(27) = -1 EBADF (Bad file descriptor) [pid 3771] close(28) = -1 EBADF (Bad file descriptor) [pid 3771] close(29) = -1 EBADF (Bad file descriptor) [pid 3771] exit_group(0) = ? [pid 3771] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=169, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./167", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./167", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./167/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./167/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./167/binderfs") = 0 [pid 3603] umount2("./167/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./167/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./167/cgroup") = 0 [pid 3603] umount2("./167/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./167/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./167/cgroup.net") = 0 [pid 3603] umount2("./167/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./167/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./167/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./167") = 0 [pid 3603] mkdir("./168", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3772 attached , child_tidptr=0x5555567b05d0) = 170 [pid 3772] chdir("./168") = 0 [pid 3772] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3772] setpgid(0, 0) = 0 [pid 3772] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3772] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3772] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3772] write(3, "1000", 4) = 4 [pid 3772] close(3) = 0 [pid 3772] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3772] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3772] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3772] gettid() = 170 [pid 3772] process_vm_writev(170, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3772] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3772] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3772] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3772] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3772] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3772] close(3) = 0 [pid 3772] close(4) = 0 [pid 3772] close(5) = -1 EBADF (Bad file descriptor) [pid 3772] close(6) = -1 EBADF (Bad file descriptor) [pid 3772] close(7) = -1 EBADF (Bad file descriptor) [pid 3772] close(8) = -1 EBADF (Bad file descriptor) [pid 3772] close(9) = -1 EBADF (Bad file descriptor) [pid 3772] close(10) = -1 EBADF (Bad file descriptor) [pid 3772] close(11) = -1 EBADF (Bad file descriptor) [pid 3772] close(12) = -1 EBADF (Bad file descriptor) [pid 3772] close(13) = -1 EBADF (Bad file descriptor) [pid 3772] close(14) = -1 EBADF (Bad file descriptor) [pid 3772] close(15) = -1 EBADF (Bad file descriptor) [pid 3772] close(16) = -1 EBADF (Bad file descriptor) [pid 3772] close(17) = -1 EBADF (Bad file descriptor) [pid 3772] close(18) = -1 EBADF (Bad file descriptor) [pid 3772] close(19) = -1 EBADF (Bad file descriptor) [pid 3772] close(20) = -1 EBADF (Bad file descriptor) [pid 3772] close(21) = -1 EBADF (Bad file descriptor) [pid 3772] close(22) = -1 EBADF (Bad file descriptor) [pid 3772] close(23) = -1 EBADF (Bad file descriptor) [pid 3772] close(24) = -1 EBADF (Bad file descriptor) [pid 3772] close(25) = -1 EBADF (Bad file descriptor) [pid 3772] close(26) = -1 EBADF (Bad file descriptor) [pid 3772] close(27) = -1 EBADF (Bad file descriptor) [pid 3772] close(28) = -1 EBADF (Bad file descriptor) [pid 3772] close(29) = -1 EBADF (Bad file descriptor) [pid 3772] exit_group(0) = ? [pid 3772] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=170, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./168", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./168", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./168/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./168/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./168/binderfs") = 0 [pid 3603] umount2("./168/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./168/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./168/cgroup") = 0 [pid 3603] umount2("./168/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./168/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./168/cgroup.net") = 0 [pid 3603] umount2("./168/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./168/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./168/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./168") = 0 [pid 3603] mkdir("./169", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 171 ./strace-static-x86_64: Process 3773 attached [pid 3773] chdir("./169") = 0 [pid 3773] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3773] setpgid(0, 0) = 0 [pid 3773] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3773] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3773] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3773] write(3, "1000", 4) = 4 [pid 3773] close(3) = 0 [pid 3773] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3773] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3773] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3773] gettid() = 171 [pid 3773] process_vm_writev(171, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3773] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3773] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3773] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3773] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3773] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3773] close(3) = 0 [pid 3773] close(4) = 0 [pid 3773] close(5) = -1 EBADF (Bad file descriptor) [pid 3773] close(6) = -1 EBADF (Bad file descriptor) [pid 3773] close(7) = -1 EBADF (Bad file descriptor) [pid 3773] close(8) = -1 EBADF (Bad file descriptor) [pid 3773] close(9) = -1 EBADF (Bad file descriptor) [pid 3773] close(10) = -1 EBADF (Bad file descriptor) [pid 3773] close(11) = -1 EBADF (Bad file descriptor) [pid 3773] close(12) = -1 EBADF (Bad file descriptor) [pid 3773] close(13) = -1 EBADF (Bad file descriptor) [pid 3773] close(14) = -1 EBADF (Bad file descriptor) [pid 3773] close(15) = -1 EBADF (Bad file descriptor) [pid 3773] close(16) = -1 EBADF (Bad file descriptor) [pid 3773] close(17) = -1 EBADF (Bad file descriptor) [pid 3773] close(18) = -1 EBADF (Bad file descriptor) [pid 3773] close(19) = -1 EBADF (Bad file descriptor) [pid 3773] close(20) = -1 EBADF (Bad file descriptor) [pid 3773] close(21) = -1 EBADF (Bad file descriptor) [pid 3773] close(22) = -1 EBADF (Bad file descriptor) [pid 3773] close(23) = -1 EBADF (Bad file descriptor) [pid 3773] close(24) = -1 EBADF (Bad file descriptor) [pid 3773] close(25) = -1 EBADF (Bad file descriptor) [pid 3773] close(26) = -1 EBADF (Bad file descriptor) [pid 3773] close(27) = -1 EBADF (Bad file descriptor) [pid 3773] close(28) = -1 EBADF (Bad file descriptor) [pid 3773] close(29) = -1 EBADF (Bad file descriptor) [pid 3773] exit_group(0) = ? [pid 3773] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=171, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./169", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./169", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./169/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./169/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./169/binderfs") = 0 [pid 3603] umount2("./169/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./169/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./169/cgroup") = 0 [pid 3603] umount2("./169/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./169/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./169/cgroup.net") = 0 [pid 3603] umount2("./169/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./169/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./169/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./169") = 0 [pid 3603] mkdir("./170", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3774 attached [pid 3774] chdir("./170") = 0 [pid 3774] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3774] setpgid(0, 0) = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 172 [pid 3774] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3774] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3774] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3774] write(3, "1000", 4) = 4 [pid 3774] close(3) = 0 [pid 3774] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3774] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3774] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3774] gettid() = 172 [pid 3774] process_vm_writev(172, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3774] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3774] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3774] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3774] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3774] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3774] close(3) = 0 [pid 3774] close(4) = 0 [pid 3774] close(5) = -1 EBADF (Bad file descriptor) [pid 3774] close(6) = -1 EBADF (Bad file descriptor) [pid 3774] close(7) = -1 EBADF (Bad file descriptor) [pid 3774] close(8) = -1 EBADF (Bad file descriptor) [pid 3774] close(9) = -1 EBADF (Bad file descriptor) [pid 3774] close(10) = -1 EBADF (Bad file descriptor) [pid 3774] close(11) = -1 EBADF (Bad file descriptor) [pid 3774] close(12) = -1 EBADF (Bad file descriptor) [pid 3774] close(13) = -1 EBADF (Bad file descriptor) [pid 3774] close(14) = -1 EBADF (Bad file descriptor) [pid 3774] close(15) = -1 EBADF (Bad file descriptor) [pid 3774] close(16) = -1 EBADF (Bad file descriptor) [pid 3774] close(17) = -1 EBADF (Bad file descriptor) [pid 3774] close(18) = -1 EBADF (Bad file descriptor) [pid 3774] close(19) = -1 EBADF (Bad file descriptor) [pid 3774] close(20) = -1 EBADF (Bad file descriptor) [pid 3774] close(21) = -1 EBADF (Bad file descriptor) [pid 3774] close(22) = -1 EBADF (Bad file descriptor) [pid 3774] close(23) = -1 EBADF (Bad file descriptor) [pid 3774] close(24) = -1 EBADF (Bad file descriptor) [pid 3774] close(25) = -1 EBADF (Bad file descriptor) [pid 3774] close(26) = -1 EBADF (Bad file descriptor) [pid 3774] close(27) = -1 EBADF (Bad file descriptor) [pid 3774] close(28) = -1 EBADF (Bad file descriptor) [pid 3774] close(29) = -1 EBADF (Bad file descriptor) [pid 3774] exit_group(0) = ? [pid 3774] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=172, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3603] umount2("./170", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./170", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./170/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./170/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./170/binderfs") = 0 [pid 3603] umount2("./170/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./170/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./170/cgroup") = 0 [pid 3603] umount2("./170/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./170/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./170/cgroup.net") = 0 [pid 3603] umount2("./170/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./170/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./170/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./170") = 0 [pid 3603] mkdir("./171", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3775 attached , child_tidptr=0x5555567b05d0) = 173 [pid 3775] chdir("./171") = 0 [pid 3775] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3775] setpgid(0, 0) = 0 [pid 3775] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3775] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3775] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3775] write(3, "1000", 4) = 4 [pid 3775] close(3) = 0 [pid 3775] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3775] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3775] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3775] gettid() = 173 [pid 3775] process_vm_writev(173, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3775] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3775] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3775] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3775] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3775] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3775] close(3) = 0 [pid 3775] close(4) = 0 [pid 3775] close(5) = -1 EBADF (Bad file descriptor) [pid 3775] close(6) = -1 EBADF (Bad file descriptor) [pid 3775] close(7) = -1 EBADF (Bad file descriptor) [pid 3775] close(8) = -1 EBADF (Bad file descriptor) [pid 3775] close(9) = -1 EBADF (Bad file descriptor) [pid 3775] close(10) = -1 EBADF (Bad file descriptor) [pid 3775] close(11) = -1 EBADF (Bad file descriptor) [pid 3775] close(12) = -1 EBADF (Bad file descriptor) [pid 3775] close(13) = -1 EBADF (Bad file descriptor) [pid 3775] close(14) = -1 EBADF (Bad file descriptor) [pid 3775] close(15) = -1 EBADF (Bad file descriptor) [pid 3775] close(16) = -1 EBADF (Bad file descriptor) [pid 3775] close(17) = -1 EBADF (Bad file descriptor) [pid 3775] close(18) = -1 EBADF (Bad file descriptor) [pid 3775] close(19) = -1 EBADF (Bad file descriptor) [pid 3775] close(20) = -1 EBADF (Bad file descriptor) [pid 3775] close(21) = -1 EBADF (Bad file descriptor) [pid 3775] close(22) = -1 EBADF (Bad file descriptor) [pid 3775] close(23) = -1 EBADF (Bad file descriptor) [pid 3775] close(24) = -1 EBADF (Bad file descriptor) [pid 3775] close(25) = -1 EBADF (Bad file descriptor) [pid 3775] close(26) = -1 EBADF (Bad file descriptor) [pid 3775] close(27) = -1 EBADF (Bad file descriptor) [pid 3775] close(28) = -1 EBADF (Bad file descriptor) [pid 3775] close(29) = -1 EBADF (Bad file descriptor) [pid 3775] exit_group(0) = ? [pid 3775] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=173, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./171", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./171", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./171/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./171/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./171/binderfs") = 0 [pid 3603] umount2("./171/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./171/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./171/cgroup") = 0 [pid 3603] umount2("./171/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./171/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./171/cgroup.net") = 0 [pid 3603] umount2("./171/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./171/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./171/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./171") = 0 [pid 3603] mkdir("./172", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3776 attached [pid 3776] chdir("./172") = 0 [pid 3776] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3776] setpgid(0, 0) = 0 [pid 3776] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 174 [pid 3776] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3776] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3776] write(3, "1000", 4) = 4 [pid 3776] close(3) = 0 [pid 3776] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3776] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3776] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3776] gettid() = 174 [pid 3776] process_vm_writev(174, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3776] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3776] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3776] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3776] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3776] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3776] close(3) = 0 [pid 3776] close(4) = 0 [pid 3776] close(5) = -1 EBADF (Bad file descriptor) [pid 3776] close(6) = -1 EBADF (Bad file descriptor) [pid 3776] close(7) = -1 EBADF (Bad file descriptor) [pid 3776] close(8) = -1 EBADF (Bad file descriptor) [pid 3776] close(9) = -1 EBADF (Bad file descriptor) [pid 3776] close(10) = -1 EBADF (Bad file descriptor) [pid 3776] close(11) = -1 EBADF (Bad file descriptor) [pid 3776] close(12) = -1 EBADF (Bad file descriptor) [pid 3776] close(13) = -1 EBADF (Bad file descriptor) [pid 3776] close(14) = -1 EBADF (Bad file descriptor) [pid 3776] close(15) = -1 EBADF (Bad file descriptor) [pid 3776] close(16) = -1 EBADF (Bad file descriptor) [pid 3776] close(17) = -1 EBADF (Bad file descriptor) [pid 3776] close(18) = -1 EBADF (Bad file descriptor) [pid 3776] close(19) = -1 EBADF (Bad file descriptor) [pid 3776] close(20) = -1 EBADF (Bad file descriptor) [pid 3776] close(21) = -1 EBADF (Bad file descriptor) [pid 3776] close(22) = -1 EBADF (Bad file descriptor) [pid 3776] close(23) = -1 EBADF (Bad file descriptor) [pid 3776] close(24) = -1 EBADF (Bad file descriptor) [pid 3776] close(25) = -1 EBADF (Bad file descriptor) [pid 3776] close(26) = -1 EBADF (Bad file descriptor) [pid 3776] close(27) = -1 EBADF (Bad file descriptor) [pid 3776] close(28) = -1 EBADF (Bad file descriptor) [pid 3776] close(29) = -1 EBADF (Bad file descriptor) [pid 3776] exit_group(0) = ? [pid 3776] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=174, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./172", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./172", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./172/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./172/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./172/binderfs") = 0 [pid 3603] umount2("./172/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./172/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./172/cgroup") = 0 [pid 3603] umount2("./172/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./172/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./172/cgroup.net") = 0 [pid 3603] umount2("./172/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./172/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./172/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./172") = 0 [pid 3603] mkdir("./173", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3777 attached , child_tidptr=0x5555567b05d0) = 175 [pid 3777] chdir("./173") = 0 [pid 3777] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3777] setpgid(0, 0) = 0 [pid 3777] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3777] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3777] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3777] write(3, "1000", 4) = 4 [pid 3777] close(3) = 0 [pid 3777] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3777] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3777] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3777] gettid() = 175 [pid 3777] process_vm_writev(175, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3777] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3777] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3777] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3777] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3777] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3777] close(3) = 0 [pid 3777] close(4) = 0 [pid 3777] close(5) = -1 EBADF (Bad file descriptor) [pid 3777] close(6) = -1 EBADF (Bad file descriptor) [pid 3777] close(7) = -1 EBADF (Bad file descriptor) [pid 3777] close(8) = -1 EBADF (Bad file descriptor) [pid 3777] close(9) = -1 EBADF (Bad file descriptor) [pid 3777] close(10) = -1 EBADF (Bad file descriptor) [pid 3777] close(11) = -1 EBADF (Bad file descriptor) [pid 3777] close(12) = -1 EBADF (Bad file descriptor) [pid 3777] close(13) = -1 EBADF (Bad file descriptor) [pid 3777] close(14) = -1 EBADF (Bad file descriptor) [pid 3777] close(15) = -1 EBADF (Bad file descriptor) [pid 3777] close(16) = -1 EBADF (Bad file descriptor) [pid 3777] close(17) = -1 EBADF (Bad file descriptor) [pid 3777] close(18) = -1 EBADF (Bad file descriptor) [pid 3777] close(19) = -1 EBADF (Bad file descriptor) [pid 3777] close(20) = -1 EBADF (Bad file descriptor) [pid 3777] close(21) = -1 EBADF (Bad file descriptor) [pid 3777] close(22) = -1 EBADF (Bad file descriptor) [pid 3777] close(23) = -1 EBADF (Bad file descriptor) [pid 3777] close(24) = -1 EBADF (Bad file descriptor) [pid 3777] close(25) = -1 EBADF (Bad file descriptor) [pid 3777] close(26) = -1 EBADF (Bad file descriptor) [pid 3777] close(27) = -1 EBADF (Bad file descriptor) [pid 3777] close(28) = -1 EBADF (Bad file descriptor) [pid 3777] close(29) = -1 EBADF (Bad file descriptor) [pid 3777] exit_group(0) = ? [pid 3777] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=175, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3603] umount2("./173", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./173", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./173/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./173/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./173/binderfs") = 0 [pid 3603] umount2("./173/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./173/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./173/cgroup") = 0 [pid 3603] umount2("./173/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./173/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./173/cgroup.net") = 0 [pid 3603] umount2("./173/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./173/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./173/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./173") = 0 [pid 3603] mkdir("./174", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3778 attached , child_tidptr=0x5555567b05d0) = 176 [pid 3778] chdir("./174") = 0 [pid 3778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3778] setpgid(0, 0) = 0 [pid 3778] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3778] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3778] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3778] write(3, "1000", 4) = 4 [pid 3778] close(3) = 0 [pid 3778] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3778] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3778] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3778] gettid() = 176 [pid 3778] process_vm_writev(176, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3778] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3778] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3778] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3778] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3778] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3778] close(3) = 0 [pid 3778] close(4) = 0 [pid 3778] close(5) = -1 EBADF (Bad file descriptor) [pid 3778] close(6) = -1 EBADF (Bad file descriptor) [pid 3778] close(7) = -1 EBADF (Bad file descriptor) [pid 3778] close(8) = -1 EBADF (Bad file descriptor) [pid 3778] close(9) = -1 EBADF (Bad file descriptor) [pid 3778] close(10) = -1 EBADF (Bad file descriptor) [pid 3778] close(11) = -1 EBADF (Bad file descriptor) [pid 3778] close(12) = -1 EBADF (Bad file descriptor) [pid 3778] close(13) = -1 EBADF (Bad file descriptor) [pid 3778] close(14) = -1 EBADF (Bad file descriptor) [pid 3778] close(15) = -1 EBADF (Bad file descriptor) [pid 3778] close(16) = -1 EBADF (Bad file descriptor) [pid 3778] close(17) = -1 EBADF (Bad file descriptor) [pid 3778] close(18) = -1 EBADF (Bad file descriptor) [pid 3778] close(19) = -1 EBADF (Bad file descriptor) [pid 3778] close(20) = -1 EBADF (Bad file descriptor) [pid 3778] close(21) = -1 EBADF (Bad file descriptor) [pid 3778] close(22) = -1 EBADF (Bad file descriptor) [pid 3778] close(23) = -1 EBADF (Bad file descriptor) [pid 3778] close(24) = -1 EBADF (Bad file descriptor) [pid 3778] close(25) = -1 EBADF (Bad file descriptor) [pid 3778] close(26) = -1 EBADF (Bad file descriptor) [pid 3778] close(27) = -1 EBADF (Bad file descriptor) [pid 3778] close(28) = -1 EBADF (Bad file descriptor) [pid 3778] close(29) = -1 EBADF (Bad file descriptor) [pid 3778] exit_group(0) = ? [pid 3778] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=176, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./174", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./174", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./174/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./174/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./174/binderfs") = 0 [pid 3603] umount2("./174/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./174/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./174/cgroup") = 0 [pid 3603] umount2("./174/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./174/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./174/cgroup.net") = 0 [pid 3603] umount2("./174/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./174/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./174/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./174") = 0 [pid 3603] mkdir("./175", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3779 attached [pid 3779] chdir("./175") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 177 [pid 3779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3779] setpgid(0, 0) = 0 [pid 3779] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3779] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3779] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3779] write(3, "1000", 4) = 4 [pid 3779] close(3) = 0 [pid 3779] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3779] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3779] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3779] gettid() = 177 [pid 3779] process_vm_writev(177, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3779] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3779] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3779] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3779] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3779] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3779] close(3) = 0 [pid 3779] close(4) = 0 [pid 3779] close(5) = -1 EBADF (Bad file descriptor) [pid 3779] close(6) = -1 EBADF (Bad file descriptor) [pid 3779] close(7) = -1 EBADF (Bad file descriptor) [pid 3779] close(8) = -1 EBADF (Bad file descriptor) [pid 3779] close(9) = -1 EBADF (Bad file descriptor) [pid 3779] close(10) = -1 EBADF (Bad file descriptor) [pid 3779] close(11) = -1 EBADF (Bad file descriptor) [pid 3779] close(12) = -1 EBADF (Bad file descriptor) [pid 3779] close(13) = -1 EBADF (Bad file descriptor) [pid 3779] close(14) = -1 EBADF (Bad file descriptor) [pid 3779] close(15) = -1 EBADF (Bad file descriptor) [pid 3779] close(16) = -1 EBADF (Bad file descriptor) [pid 3779] close(17) = -1 EBADF (Bad file descriptor) [pid 3779] close(18) = -1 EBADF (Bad file descriptor) [pid 3779] close(19) = -1 EBADF (Bad file descriptor) [pid 3779] close(20) = -1 EBADF (Bad file descriptor) [pid 3779] close(21) = -1 EBADF (Bad file descriptor) [pid 3779] close(22) = -1 EBADF (Bad file descriptor) [pid 3779] close(23) = -1 EBADF (Bad file descriptor) [pid 3779] close(24) = -1 EBADF (Bad file descriptor) [pid 3779] close(25) = -1 EBADF (Bad file descriptor) [pid 3779] close(26) = -1 EBADF (Bad file descriptor) [pid 3779] close(27) = -1 EBADF (Bad file descriptor) [pid 3779] close(28) = -1 EBADF (Bad file descriptor) [pid 3779] close(29) = -1 EBADF (Bad file descriptor) [pid 3779] exit_group(0) = ? [pid 3779] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=177, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./175", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./175", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./175/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./175/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./175/binderfs") = 0 [pid 3603] umount2("./175/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./175/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./175/cgroup") = 0 [pid 3603] umount2("./175/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./175/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./175/cgroup.net") = 0 [pid 3603] umount2("./175/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./175/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./175/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./175") = 0 [pid 3603] mkdir("./176", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3780 attached [pid 3780] chdir("./176" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 178 [pid 3780] <... chdir resumed>) = 0 [pid 3780] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3780] setpgid(0, 0) = 0 [pid 3780] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3780] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3780] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3780] write(3, "1000", 4) = 4 [pid 3780] close(3) = 0 [pid 3780] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3780] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3780] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3780] gettid() = 178 [pid 3780] process_vm_writev(178, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3780] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3780] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3780] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3780] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3780] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3780] close(3) = 0 [pid 3780] close(4) = 0 [pid 3780] close(5) = -1 EBADF (Bad file descriptor) [pid 3780] close(6) = -1 EBADF (Bad file descriptor) [pid 3780] close(7) = -1 EBADF (Bad file descriptor) [pid 3780] close(8) = -1 EBADF (Bad file descriptor) [pid 3780] close(9) = -1 EBADF (Bad file descriptor) [pid 3780] close(10) = -1 EBADF (Bad file descriptor) [pid 3780] close(11) = -1 EBADF (Bad file descriptor) [pid 3780] close(12) = -1 EBADF (Bad file descriptor) [pid 3780] close(13) = -1 EBADF (Bad file descriptor) [pid 3780] close(14) = -1 EBADF (Bad file descriptor) [pid 3780] close(15) = -1 EBADF (Bad file descriptor) [pid 3780] close(16) = -1 EBADF (Bad file descriptor) [pid 3780] close(17) = -1 EBADF (Bad file descriptor) [pid 3780] close(18) = -1 EBADF (Bad file descriptor) [pid 3780] close(19) = -1 EBADF (Bad file descriptor) [pid 3780] close(20) = -1 EBADF (Bad file descriptor) [pid 3780] close(21) = -1 EBADF (Bad file descriptor) [pid 3780] close(22) = -1 EBADF (Bad file descriptor) [pid 3780] close(23) = -1 EBADF (Bad file descriptor) [pid 3780] close(24) = -1 EBADF (Bad file descriptor) [pid 3780] close(25) = -1 EBADF (Bad file descriptor) [pid 3780] close(26) = -1 EBADF (Bad file descriptor) [pid 3780] close(27) = -1 EBADF (Bad file descriptor) [pid 3780] close(28) = -1 EBADF (Bad file descriptor) [pid 3780] close(29) = -1 EBADF (Bad file descriptor) [pid 3780] exit_group(0) = ? [pid 3780] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=178, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./176", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./176", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./176/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./176/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./176/binderfs") = 0 [pid 3603] umount2("./176/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./176/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./176/cgroup") = 0 [pid 3603] umount2("./176/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./176/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./176/cgroup.net") = 0 [pid 3603] umount2("./176/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./176/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./176/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./176") = 0 [pid 3603] mkdir("./177", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3781 attached , child_tidptr=0x5555567b05d0) = 179 [pid 3781] chdir("./177") = 0 [pid 3781] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3781] setpgid(0, 0) = 0 [pid 3781] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3781] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3781] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3781] write(3, "1000", 4) = 4 [pid 3781] close(3) = 0 [pid 3781] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3781] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3781] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3781] gettid() = 179 [pid 3781] process_vm_writev(179, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3781] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3781] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3781] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3781] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3781] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3781] close(3) = 0 [pid 3781] close(4) = 0 [pid 3781] close(5) = -1 EBADF (Bad file descriptor) [pid 3781] close(6) = -1 EBADF (Bad file descriptor) [pid 3781] close(7) = -1 EBADF (Bad file descriptor) [pid 3781] close(8) = -1 EBADF (Bad file descriptor) [pid 3781] close(9) = -1 EBADF (Bad file descriptor) [pid 3781] close(10) = -1 EBADF (Bad file descriptor) [pid 3781] close(11) = -1 EBADF (Bad file descriptor) [pid 3781] close(12) = -1 EBADF (Bad file descriptor) [pid 3781] close(13) = -1 EBADF (Bad file descriptor) [pid 3781] close(14) = -1 EBADF (Bad file descriptor) [pid 3781] close(15) = -1 EBADF (Bad file descriptor) [pid 3781] close(16) = -1 EBADF (Bad file descriptor) [pid 3781] close(17) = -1 EBADF (Bad file descriptor) [pid 3781] close(18) = -1 EBADF (Bad file descriptor) [pid 3781] close(19) = -1 EBADF (Bad file descriptor) [pid 3781] close(20) = -1 EBADF (Bad file descriptor) [pid 3781] close(21) = -1 EBADF (Bad file descriptor) [pid 3781] close(22) = -1 EBADF (Bad file descriptor) [pid 3781] close(23) = -1 EBADF (Bad file descriptor) [pid 3781] close(24) = -1 EBADF (Bad file descriptor) [pid 3781] close(25) = -1 EBADF (Bad file descriptor) [pid 3781] close(26) = -1 EBADF (Bad file descriptor) [pid 3781] close(27) = -1 EBADF (Bad file descriptor) [pid 3781] close(28) = -1 EBADF (Bad file descriptor) [pid 3781] close(29) = -1 EBADF (Bad file descriptor) [pid 3781] exit_group(0) = ? [pid 3781] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=179, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./177", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./177", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./177/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./177/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./177/binderfs") = 0 [pid 3603] umount2("./177/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./177/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./177/cgroup") = 0 [pid 3603] umount2("./177/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./177/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./177/cgroup.net") = 0 [pid 3603] umount2("./177/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./177/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./177/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./177") = 0 [pid 3603] mkdir("./178", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3782 attached , child_tidptr=0x5555567b05d0) = 180 [pid 3782] chdir("./178") = 0 [pid 3782] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3782] setpgid(0, 0) = 0 [pid 3782] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3782] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3782] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3782] write(3, "1000", 4) = 4 [pid 3782] close(3) = 0 [pid 3782] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3782] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3782] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3782] gettid() = 180 [pid 3782] process_vm_writev(180, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3782] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3782] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3782] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3782] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3782] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3782] close(3) = 0 [pid 3782] close(4) = 0 [pid 3782] close(5) = -1 EBADF (Bad file descriptor) [pid 3782] close(6) = -1 EBADF (Bad file descriptor) [pid 3782] close(7) = -1 EBADF (Bad file descriptor) [pid 3782] close(8) = -1 EBADF (Bad file descriptor) [pid 3782] close(9) = -1 EBADF (Bad file descriptor) [pid 3782] close(10) = -1 EBADF (Bad file descriptor) [pid 3782] close(11) = -1 EBADF (Bad file descriptor) [pid 3782] close(12) = -1 EBADF (Bad file descriptor) [pid 3782] close(13) = -1 EBADF (Bad file descriptor) [pid 3782] close(14) = -1 EBADF (Bad file descriptor) [pid 3782] close(15) = -1 EBADF (Bad file descriptor) [pid 3782] close(16) = -1 EBADF (Bad file descriptor) [pid 3782] close(17) = -1 EBADF (Bad file descriptor) [pid 3782] close(18) = -1 EBADF (Bad file descriptor) [pid 3782] close(19) = -1 EBADF (Bad file descriptor) [pid 3782] close(20) = -1 EBADF (Bad file descriptor) [pid 3782] close(21) = -1 EBADF (Bad file descriptor) [pid 3782] close(22) = -1 EBADF (Bad file descriptor) [pid 3782] close(23) = -1 EBADF (Bad file descriptor) [pid 3782] close(24) = -1 EBADF (Bad file descriptor) [pid 3782] close(25) = -1 EBADF (Bad file descriptor) [pid 3782] close(26) = -1 EBADF (Bad file descriptor) [pid 3782] close(27) = -1 EBADF (Bad file descriptor) [pid 3782] close(28) = -1 EBADF (Bad file descriptor) [pid 3782] close(29) = -1 EBADF (Bad file descriptor) [pid 3782] exit_group(0) = ? [pid 3782] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=180, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./178", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./178", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./178/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./178/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./178/binderfs") = 0 [pid 3603] umount2("./178/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./178/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./178/cgroup") = 0 [pid 3603] umount2("./178/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./178/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./178/cgroup.net") = 0 [pid 3603] umount2("./178/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./178/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./178/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./178") = 0 [pid 3603] mkdir("./179", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3783 attached [pid 3783] chdir("./179" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 181 [pid 3783] <... chdir resumed>) = 0 [pid 3783] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3783] setpgid(0, 0) = 0 [pid 3783] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3783] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3783] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3783] write(3, "1000", 4) = 4 [pid 3783] close(3) = 0 [pid 3783] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3783] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3783] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3783] gettid() = 181 [pid 3783] process_vm_writev(181, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3783] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3783] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3783] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3783] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3783] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3783] close(3) = 0 [pid 3783] close(4) = 0 [pid 3783] close(5) = -1 EBADF (Bad file descriptor) [pid 3783] close(6) = -1 EBADF (Bad file descriptor) [pid 3783] close(7) = -1 EBADF (Bad file descriptor) [pid 3783] close(8) = -1 EBADF (Bad file descriptor) [pid 3783] close(9) = -1 EBADF (Bad file descriptor) [pid 3783] close(10) = -1 EBADF (Bad file descriptor) [pid 3783] close(11) = -1 EBADF (Bad file descriptor) [pid 3783] close(12) = -1 EBADF (Bad file descriptor) [pid 3783] close(13) = -1 EBADF (Bad file descriptor) [pid 3783] close(14) = -1 EBADF (Bad file descriptor) [pid 3783] close(15) = -1 EBADF (Bad file descriptor) [pid 3783] close(16) = -1 EBADF (Bad file descriptor) [pid 3783] close(17) = -1 EBADF (Bad file descriptor) [pid 3783] close(18) = -1 EBADF (Bad file descriptor) [pid 3783] close(19) = -1 EBADF (Bad file descriptor) [pid 3783] close(20) = -1 EBADF (Bad file descriptor) [pid 3783] close(21) = -1 EBADF (Bad file descriptor) [pid 3783] close(22) = -1 EBADF (Bad file descriptor) [pid 3783] close(23) = -1 EBADF (Bad file descriptor) [pid 3783] close(24) = -1 EBADF (Bad file descriptor) [pid 3783] close(25) = -1 EBADF (Bad file descriptor) [pid 3783] close(26) = -1 EBADF (Bad file descriptor) [pid 3783] close(27) = -1 EBADF (Bad file descriptor) [pid 3783] close(28) = -1 EBADF (Bad file descriptor) [pid 3783] close(29) = -1 EBADF (Bad file descriptor) [pid 3783] exit_group(0) = ? [pid 3783] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=181, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./179", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./179", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./179/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./179/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./179/binderfs") = 0 [pid 3603] umount2("./179/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./179/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./179/cgroup") = 0 [pid 3603] umount2("./179/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./179/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./179/cgroup.net") = 0 [pid 3603] umount2("./179/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./179/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./179/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./179") = 0 [pid 3603] mkdir("./180", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3784 attached , child_tidptr=0x5555567b05d0) = 182 [pid 3784] chdir("./180") = 0 [pid 3784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3784] setpgid(0, 0) = 0 [pid 3784] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3784] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3784] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3784] write(3, "1000", 4) = 4 [pid 3784] close(3) = 0 [pid 3784] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3784] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3784] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3784] gettid() = 182 [pid 3784] process_vm_writev(182, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3784] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3784] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3784] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3784] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3784] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3784] close(3) = 0 [pid 3784] close(4) = 0 [pid 3784] close(5) = -1 EBADF (Bad file descriptor) [pid 3784] close(6) = -1 EBADF (Bad file descriptor) [pid 3784] close(7) = -1 EBADF (Bad file descriptor) [pid 3784] close(8) = -1 EBADF (Bad file descriptor) [pid 3784] close(9) = -1 EBADF (Bad file descriptor) [pid 3784] close(10) = -1 EBADF (Bad file descriptor) [pid 3784] close(11) = -1 EBADF (Bad file descriptor) [pid 3784] close(12) = -1 EBADF (Bad file descriptor) [pid 3784] close(13) = -1 EBADF (Bad file descriptor) [pid 3784] close(14) = -1 EBADF (Bad file descriptor) [pid 3784] close(15) = -1 EBADF (Bad file descriptor) [pid 3784] close(16) = -1 EBADF (Bad file descriptor) [pid 3784] close(17) = -1 EBADF (Bad file descriptor) [pid 3784] close(18) = -1 EBADF (Bad file descriptor) [pid 3784] close(19) = -1 EBADF (Bad file descriptor) [pid 3784] close(20) = -1 EBADF (Bad file descriptor) [pid 3784] close(21) = -1 EBADF (Bad file descriptor) [pid 3784] close(22) = -1 EBADF (Bad file descriptor) [pid 3784] close(23) = -1 EBADF (Bad file descriptor) [pid 3784] close(24) = -1 EBADF (Bad file descriptor) [pid 3784] close(25) = -1 EBADF (Bad file descriptor) [pid 3784] close(26) = -1 EBADF (Bad file descriptor) [pid 3784] close(27) = -1 EBADF (Bad file descriptor) [pid 3784] close(28) = -1 EBADF (Bad file descriptor) [pid 3784] close(29) = -1 EBADF (Bad file descriptor) [pid 3784] exit_group(0) = ? [pid 3784] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=182, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./180", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./180", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./180/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./180/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./180/binderfs") = 0 [pid 3603] umount2("./180/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./180/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./180/cgroup") = 0 [pid 3603] umount2("./180/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./180/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./180/cgroup.net") = 0 [pid 3603] umount2("./180/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./180/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./180/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./180") = 0 [pid 3603] mkdir("./181", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3785 attached , child_tidptr=0x5555567b05d0) = 183 [pid 3785] chdir("./181") = 0 [pid 3785] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3785] setpgid(0, 0) = 0 [pid 3785] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3785] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3785] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3785] write(3, "1000", 4) = 4 [pid 3785] close(3) = 0 [pid 3785] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3785] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3785] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3785] gettid() = 183 [pid 3785] process_vm_writev(183, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3785] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3785] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3785] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3785] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3785] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3785] close(3) = 0 [pid 3785] close(4) = 0 [pid 3785] close(5) = -1 EBADF (Bad file descriptor) [pid 3785] close(6) = -1 EBADF (Bad file descriptor) [pid 3785] close(7) = -1 EBADF (Bad file descriptor) [pid 3785] close(8) = -1 EBADF (Bad file descriptor) [pid 3785] close(9) = -1 EBADF (Bad file descriptor) [pid 3785] close(10) = -1 EBADF (Bad file descriptor) [pid 3785] close(11) = -1 EBADF (Bad file descriptor) [pid 3785] close(12) = -1 EBADF (Bad file descriptor) [pid 3785] close(13) = -1 EBADF (Bad file descriptor) [pid 3785] close(14) = -1 EBADF (Bad file descriptor) [pid 3785] close(15) = -1 EBADF (Bad file descriptor) [pid 3785] close(16) = -1 EBADF (Bad file descriptor) [pid 3785] close(17) = -1 EBADF (Bad file descriptor) [pid 3785] close(18) = -1 EBADF (Bad file descriptor) [pid 3785] close(19) = -1 EBADF (Bad file descriptor) [pid 3785] close(20) = -1 EBADF (Bad file descriptor) [pid 3785] close(21) = -1 EBADF (Bad file descriptor) [pid 3785] close(22) = -1 EBADF (Bad file descriptor) [pid 3785] close(23) = -1 EBADF (Bad file descriptor) [pid 3785] close(24) = -1 EBADF (Bad file descriptor) [pid 3785] close(25) = -1 EBADF (Bad file descriptor) [pid 3785] close(26) = -1 EBADF (Bad file descriptor) [pid 3785] close(27) = -1 EBADF (Bad file descriptor) [pid 3785] close(28) = -1 EBADF (Bad file descriptor) [pid 3785] close(29) = -1 EBADF (Bad file descriptor) [pid 3785] exit_group(0) = ? [pid 3785] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=183, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./181", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./181", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./181/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./181/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./181/binderfs") = 0 [pid 3603] umount2("./181/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./181/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./181/cgroup") = 0 [pid 3603] umount2("./181/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./181/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./181/cgroup.net") = 0 [pid 3603] umount2("./181/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./181/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./181/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./181") = 0 [pid 3603] mkdir("./182", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3786 attached , child_tidptr=0x5555567b05d0) = 184 [pid 3786] chdir("./182") = 0 [pid 3786] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3786] setpgid(0, 0) = 0 [pid 3786] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3786] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3786] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3786] write(3, "1000", 4) = 4 [pid 3786] close(3) = 0 [pid 3786] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3786] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3786] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3786] gettid() = 184 [pid 3786] process_vm_writev(184, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3786] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3786] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3786] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3786] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3786] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3786] close(3) = 0 [pid 3786] close(4) = 0 [pid 3786] close(5) = -1 EBADF (Bad file descriptor) [pid 3786] close(6) = -1 EBADF (Bad file descriptor) [pid 3786] close(7) = -1 EBADF (Bad file descriptor) [pid 3786] close(8) = -1 EBADF (Bad file descriptor) [pid 3786] close(9) = -1 EBADF (Bad file descriptor) [pid 3786] close(10) = -1 EBADF (Bad file descriptor) [pid 3786] close(11) = -1 EBADF (Bad file descriptor) [pid 3786] close(12) = -1 EBADF (Bad file descriptor) [pid 3786] close(13) = -1 EBADF (Bad file descriptor) [pid 3786] close(14) = -1 EBADF (Bad file descriptor) [pid 3786] close(15) = -1 EBADF (Bad file descriptor) [pid 3786] close(16) = -1 EBADF (Bad file descriptor) [pid 3786] close(17) = -1 EBADF (Bad file descriptor) [pid 3786] close(18) = -1 EBADF (Bad file descriptor) [pid 3786] close(19) = -1 EBADF (Bad file descriptor) [pid 3786] close(20) = -1 EBADF (Bad file descriptor) [pid 3786] close(21) = -1 EBADF (Bad file descriptor) [pid 3786] close(22) = -1 EBADF (Bad file descriptor) [pid 3786] close(23) = -1 EBADF (Bad file descriptor) [pid 3786] close(24) = -1 EBADF (Bad file descriptor) [pid 3786] close(25) = -1 EBADF (Bad file descriptor) [pid 3786] close(26) = -1 EBADF (Bad file descriptor) [pid 3786] close(27) = -1 EBADF (Bad file descriptor) [pid 3786] close(28) = -1 EBADF (Bad file descriptor) [pid 3786] close(29) = -1 EBADF (Bad file descriptor) [pid 3786] exit_group(0) = ? [pid 3786] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=184, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./182", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./182", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./182/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./182/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./182/binderfs") = 0 [pid 3603] umount2("./182/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./182/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./182/cgroup") = 0 [pid 3603] umount2("./182/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./182/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./182/cgroup.net") = 0 [pid 3603] umount2("./182/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./182/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./182/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./182") = 0 [pid 3603] mkdir("./183", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3787 attached , child_tidptr=0x5555567b05d0) = 185 [pid 3787] chdir("./183") = 0 [pid 3787] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3787] setpgid(0, 0) = 0 [pid 3787] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3787] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3787] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3787] write(3, "1000", 4) = 4 [pid 3787] close(3) = 0 [pid 3787] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3787] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3787] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3787] gettid() = 185 [pid 3787] process_vm_writev(185, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3787] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3787] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3787] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3787] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3787] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3787] close(3) = 0 [pid 3787] close(4) = 0 [pid 3787] close(5) = -1 EBADF (Bad file descriptor) [pid 3787] close(6) = -1 EBADF (Bad file descriptor) [pid 3787] close(7) = -1 EBADF (Bad file descriptor) [pid 3787] close(8) = -1 EBADF (Bad file descriptor) [pid 3787] close(9) = -1 EBADF (Bad file descriptor) [pid 3787] close(10) = -1 EBADF (Bad file descriptor) [pid 3787] close(11) = -1 EBADF (Bad file descriptor) [pid 3787] close(12) = -1 EBADF (Bad file descriptor) [pid 3787] close(13) = -1 EBADF (Bad file descriptor) [pid 3787] close(14) = -1 EBADF (Bad file descriptor) [pid 3787] close(15) = -1 EBADF (Bad file descriptor) [pid 3787] close(16) = -1 EBADF (Bad file descriptor) [pid 3787] close(17) = -1 EBADF (Bad file descriptor) [pid 3787] close(18) = -1 EBADF (Bad file descriptor) [pid 3787] close(19) = -1 EBADF (Bad file descriptor) [pid 3787] close(20) = -1 EBADF (Bad file descriptor) [pid 3787] close(21) = -1 EBADF (Bad file descriptor) [pid 3787] close(22) = -1 EBADF (Bad file descriptor) [pid 3787] close(23) = -1 EBADF (Bad file descriptor) [pid 3787] close(24) = -1 EBADF (Bad file descriptor) [pid 3787] close(25) = -1 EBADF (Bad file descriptor) [pid 3787] close(26) = -1 EBADF (Bad file descriptor) [pid 3787] close(27) = -1 EBADF (Bad file descriptor) [pid 3787] close(28) = -1 EBADF (Bad file descriptor) [pid 3787] close(29) = -1 EBADF (Bad file descriptor) [pid 3787] exit_group(0) = ? [pid 3787] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=185, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./183", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./183", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./183/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./183/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./183/binderfs") = 0 [pid 3603] umount2("./183/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./183/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./183/cgroup") = 0 [pid 3603] umount2("./183/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./183/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./183/cgroup.net") = 0 [pid 3603] umount2("./183/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./183/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./183/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./183") = 0 [pid 3603] mkdir("./184", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 186 ./strace-static-x86_64: Process 3788 attached [pid 3788] chdir("./184") = 0 [pid 3788] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3788] setpgid(0, 0) = 0 [pid 3788] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3788] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3788] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3788] write(3, "1000", 4) = 4 [pid 3788] close(3) = 0 [pid 3788] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3788] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3788] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3788] gettid() = 186 [pid 3788] process_vm_writev(186, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3788] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3788] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3788] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3788] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3788] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3788] close(3) = 0 [pid 3788] close(4) = 0 [pid 3788] close(5) = -1 EBADF (Bad file descriptor) [pid 3788] close(6) = -1 EBADF (Bad file descriptor) [pid 3788] close(7) = -1 EBADF (Bad file descriptor) [pid 3788] close(8) = -1 EBADF (Bad file descriptor) [pid 3788] close(9) = -1 EBADF (Bad file descriptor) [pid 3788] close(10) = -1 EBADF (Bad file descriptor) [pid 3788] close(11) = -1 EBADF (Bad file descriptor) [pid 3788] close(12) = -1 EBADF (Bad file descriptor) [pid 3788] close(13) = -1 EBADF (Bad file descriptor) [pid 3788] close(14) = -1 EBADF (Bad file descriptor) [pid 3788] close(15) = -1 EBADF (Bad file descriptor) [pid 3788] close(16) = -1 EBADF (Bad file descriptor) [pid 3788] close(17) = -1 EBADF (Bad file descriptor) [pid 3788] close(18) = -1 EBADF (Bad file descriptor) [pid 3788] close(19) = -1 EBADF (Bad file descriptor) [pid 3788] close(20) = -1 EBADF (Bad file descriptor) [pid 3788] close(21) = -1 EBADF (Bad file descriptor) [pid 3788] close(22) = -1 EBADF (Bad file descriptor) [pid 3788] close(23) = -1 EBADF (Bad file descriptor) [pid 3788] close(24) = -1 EBADF (Bad file descriptor) [pid 3788] close(25) = -1 EBADF (Bad file descriptor) [pid 3788] close(26) = -1 EBADF (Bad file descriptor) [pid 3788] close(27) = -1 EBADF (Bad file descriptor) [pid 3788] close(28) = -1 EBADF (Bad file descriptor) [pid 3788] close(29) = -1 EBADF (Bad file descriptor) [pid 3788] exit_group(0) = ? [pid 3788] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=186, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./184", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./184", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./184/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./184/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./184/binderfs") = 0 [pid 3603] umount2("./184/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./184/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./184/cgroup") = 0 [pid 3603] umount2("./184/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./184/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./184/cgroup.net") = 0 [pid 3603] umount2("./184/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./184/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./184/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./184") = 0 [pid 3603] mkdir("./185", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3789 attached [pid 3789] chdir("./185") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 187 [pid 3789] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3789] setpgid(0, 0) = 0 [pid 3789] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3789] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3789] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3789] write(3, "1000", 4) = 4 [pid 3789] close(3) = 0 [pid 3789] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3789] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3789] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3789] gettid() = 187 [pid 3789] process_vm_writev(187, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3789] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3789] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3789] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3789] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3789] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3789] close(3) = 0 [pid 3789] close(4) = 0 [pid 3789] close(5) = -1 EBADF (Bad file descriptor) [pid 3789] close(6) = -1 EBADF (Bad file descriptor) [pid 3789] close(7) = -1 EBADF (Bad file descriptor) [pid 3789] close(8) = -1 EBADF (Bad file descriptor) [pid 3789] close(9) = -1 EBADF (Bad file descriptor) [pid 3789] close(10) = -1 EBADF (Bad file descriptor) [pid 3789] close(11) = -1 EBADF (Bad file descriptor) [pid 3789] close(12) = -1 EBADF (Bad file descriptor) [pid 3789] close(13) = -1 EBADF (Bad file descriptor) [pid 3789] close(14) = -1 EBADF (Bad file descriptor) [pid 3789] close(15) = -1 EBADF (Bad file descriptor) [pid 3789] close(16) = -1 EBADF (Bad file descriptor) [pid 3789] close(17) = -1 EBADF (Bad file descriptor) [pid 3789] close(18) = -1 EBADF (Bad file descriptor) [pid 3789] close(19) = -1 EBADF (Bad file descriptor) [pid 3789] close(20) = -1 EBADF (Bad file descriptor) [pid 3789] close(21) = -1 EBADF (Bad file descriptor) [pid 3789] close(22) = -1 EBADF (Bad file descriptor) [pid 3789] close(23) = -1 EBADF (Bad file descriptor) [pid 3789] close(24) = -1 EBADF (Bad file descriptor) [pid 3789] close(25) = -1 EBADF (Bad file descriptor) [pid 3789] close(26) = -1 EBADF (Bad file descriptor) [pid 3789] close(27) = -1 EBADF (Bad file descriptor) [pid 3789] close(28) = -1 EBADF (Bad file descriptor) [pid 3789] close(29) = -1 EBADF (Bad file descriptor) [pid 3789] exit_group(0) = ? [pid 3789] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=187, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./185", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./185", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./185/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./185/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./185/binderfs") = 0 [pid 3603] umount2("./185/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./185/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./185/cgroup") = 0 [pid 3603] umount2("./185/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./185/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./185/cgroup.net") = 0 [pid 3603] umount2("./185/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./185/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./185/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./185") = 0 [pid 3603] mkdir("./186", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3790 attached , child_tidptr=0x5555567b05d0) = 188 [pid 3790] chdir("./186") = 0 [pid 3790] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3790] setpgid(0, 0) = 0 [pid 3790] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3790] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3790] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3790] write(3, "1000", 4) = 4 [pid 3790] close(3) = 0 [pid 3790] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3790] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3790] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3790] gettid() = 188 [pid 3790] process_vm_writev(188, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3790] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3790] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3790] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3790] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3790] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3790] close(3) = 0 [pid 3790] close(4) = 0 [pid 3790] close(5) = -1 EBADF (Bad file descriptor) [pid 3790] close(6) = -1 EBADF (Bad file descriptor) [pid 3790] close(7) = -1 EBADF (Bad file descriptor) [pid 3790] close(8) = -1 EBADF (Bad file descriptor) [pid 3790] close(9) = -1 EBADF (Bad file descriptor) [pid 3790] close(10) = -1 EBADF (Bad file descriptor) [pid 3790] close(11) = -1 EBADF (Bad file descriptor) [pid 3790] close(12) = -1 EBADF (Bad file descriptor) [pid 3790] close(13) = -1 EBADF (Bad file descriptor) [pid 3790] close(14) = -1 EBADF (Bad file descriptor) [pid 3790] close(15) = -1 EBADF (Bad file descriptor) [pid 3790] close(16) = -1 EBADF (Bad file descriptor) [pid 3790] close(17) = -1 EBADF (Bad file descriptor) [pid 3790] close(18) = -1 EBADF (Bad file descriptor) [pid 3790] close(19) = -1 EBADF (Bad file descriptor) [pid 3790] close(20) = -1 EBADF (Bad file descriptor) [pid 3790] close(21) = -1 EBADF (Bad file descriptor) [pid 3790] close(22) = -1 EBADF (Bad file descriptor) [pid 3790] close(23) = -1 EBADF (Bad file descriptor) [pid 3790] close(24) = -1 EBADF (Bad file descriptor) [pid 3790] close(25) = -1 EBADF (Bad file descriptor) [pid 3790] close(26) = -1 EBADF (Bad file descriptor) [pid 3790] close(27) = -1 EBADF (Bad file descriptor) [pid 3790] close(28) = -1 EBADF (Bad file descriptor) [pid 3790] close(29) = -1 EBADF (Bad file descriptor) [pid 3790] exit_group(0) = ? [pid 3790] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=188, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./186", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./186", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./186/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./186/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./186/binderfs") = 0 [pid 3603] umount2("./186/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./186/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./186/cgroup") = 0 [pid 3603] umount2("./186/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./186/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./186/cgroup.net") = 0 [pid 3603] umount2("./186/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./186/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./186/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./186") = 0 [pid 3603] mkdir("./187", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3791 attached , child_tidptr=0x5555567b05d0) = 189 [pid 3791] chdir("./187") = 0 [pid 3791] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3791] setpgid(0, 0) = 0 [pid 3791] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3791] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3791] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3791] write(3, "1000", 4) = 4 [pid 3791] close(3) = 0 [pid 3791] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3791] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3791] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3791] gettid() = 189 [pid 3791] process_vm_writev(189, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3791] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3791] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3791] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3791] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3791] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3791] close(3) = 0 [pid 3791] close(4) = 0 [pid 3791] close(5) = -1 EBADF (Bad file descriptor) [pid 3791] close(6) = -1 EBADF (Bad file descriptor) [pid 3791] close(7) = -1 EBADF (Bad file descriptor) [pid 3791] close(8) = -1 EBADF (Bad file descriptor) [pid 3791] close(9) = -1 EBADF (Bad file descriptor) [pid 3791] close(10) = -1 EBADF (Bad file descriptor) [pid 3791] close(11) = -1 EBADF (Bad file descriptor) [pid 3791] close(12) = -1 EBADF (Bad file descriptor) [pid 3791] close(13) = -1 EBADF (Bad file descriptor) [pid 3791] close(14) = -1 EBADF (Bad file descriptor) [pid 3791] close(15) = -1 EBADF (Bad file descriptor) [pid 3791] close(16) = -1 EBADF (Bad file descriptor) [pid 3791] close(17) = -1 EBADF (Bad file descriptor) [pid 3791] close(18) = -1 EBADF (Bad file descriptor) [pid 3791] close(19) = -1 EBADF (Bad file descriptor) [pid 3791] close(20) = -1 EBADF (Bad file descriptor) [pid 3791] close(21) = -1 EBADF (Bad file descriptor) [pid 3791] close(22) = -1 EBADF (Bad file descriptor) [pid 3791] close(23) = -1 EBADF (Bad file descriptor) [pid 3791] close(24) = -1 EBADF (Bad file descriptor) [pid 3791] close(25) = -1 EBADF (Bad file descriptor) [pid 3791] close(26) = -1 EBADF (Bad file descriptor) [pid 3791] close(27) = -1 EBADF (Bad file descriptor) [pid 3791] close(28) = -1 EBADF (Bad file descriptor) [pid 3791] close(29) = -1 EBADF (Bad file descriptor) [pid 3791] exit_group(0) = ? [pid 3791] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=189, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./187", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./187", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./187/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./187/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./187/binderfs") = 0 [pid 3603] umount2("./187/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./187/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./187/cgroup") = 0 [pid 3603] umount2("./187/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./187/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./187/cgroup.net") = 0 [pid 3603] umount2("./187/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./187/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./187/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./187") = 0 [pid 3603] mkdir("./188", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3792 attached , child_tidptr=0x5555567b05d0) = 190 [pid 3792] chdir("./188") = 0 [pid 3792] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3792] setpgid(0, 0) = 0 [pid 3792] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3792] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3792] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3792] write(3, "1000", 4) = 4 [pid 3792] close(3) = 0 [pid 3792] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3792] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3792] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3792] gettid() = 190 [pid 3792] process_vm_writev(190, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3792] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3792] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3792] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3792] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3792] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3792] close(3) = 0 [pid 3792] close(4) = 0 [pid 3792] close(5) = -1 EBADF (Bad file descriptor) [pid 3792] close(6) = -1 EBADF (Bad file descriptor) [pid 3792] close(7) = -1 EBADF (Bad file descriptor) [pid 3792] close(8) = -1 EBADF (Bad file descriptor) [pid 3792] close(9) = -1 EBADF (Bad file descriptor) [pid 3792] close(10) = -1 EBADF (Bad file descriptor) [pid 3792] close(11) = -1 EBADF (Bad file descriptor) [pid 3792] close(12) = -1 EBADF (Bad file descriptor) [pid 3792] close(13) = -1 EBADF (Bad file descriptor) [pid 3792] close(14) = -1 EBADF (Bad file descriptor) [pid 3792] close(15) = -1 EBADF (Bad file descriptor) [pid 3792] close(16) = -1 EBADF (Bad file descriptor) [pid 3792] close(17) = -1 EBADF (Bad file descriptor) [pid 3792] close(18) = -1 EBADF (Bad file descriptor) [pid 3792] close(19) = -1 EBADF (Bad file descriptor) [pid 3792] close(20) = -1 EBADF (Bad file descriptor) [pid 3792] close(21) = -1 EBADF (Bad file descriptor) [pid 3792] close(22) = -1 EBADF (Bad file descriptor) [pid 3792] close(23) = -1 EBADF (Bad file descriptor) [pid 3792] close(24) = -1 EBADF (Bad file descriptor) [pid 3792] close(25) = -1 EBADF (Bad file descriptor) [pid 3792] close(26) = -1 EBADF (Bad file descriptor) [pid 3792] close(27) = -1 EBADF (Bad file descriptor) [pid 3792] close(28) = -1 EBADF (Bad file descriptor) [pid 3792] close(29) = -1 EBADF (Bad file descriptor) [pid 3792] exit_group(0) = ? [pid 3792] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=190, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./188", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./188", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./188/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./188/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./188/binderfs") = 0 [pid 3603] umount2("./188/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./188/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./188/cgroup") = 0 [pid 3603] umount2("./188/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./188/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./188/cgroup.net") = 0 [pid 3603] umount2("./188/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./188/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./188/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./188") = 0 [pid 3603] mkdir("./189", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3793 attached , child_tidptr=0x5555567b05d0) = 191 [pid 3793] chdir("./189") = 0 [pid 3793] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3793] setpgid(0, 0) = 0 [pid 3793] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3793] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3793] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3793] write(3, "1000", 4) = 4 [pid 3793] close(3) = 0 [pid 3793] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3793] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3793] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3793] gettid() = 191 [pid 3793] process_vm_writev(191, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3793] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3793] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3793] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3793] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3793] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3793] close(3) = 0 [pid 3793] close(4) = 0 [pid 3793] close(5) = -1 EBADF (Bad file descriptor) [pid 3793] close(6) = -1 EBADF (Bad file descriptor) [pid 3793] close(7) = -1 EBADF (Bad file descriptor) [pid 3793] close(8) = -1 EBADF (Bad file descriptor) [pid 3793] close(9) = -1 EBADF (Bad file descriptor) [pid 3793] close(10) = -1 EBADF (Bad file descriptor) [pid 3793] close(11) = -1 EBADF (Bad file descriptor) [pid 3793] close(12) = -1 EBADF (Bad file descriptor) [pid 3793] close(13) = -1 EBADF (Bad file descriptor) [pid 3793] close(14) = -1 EBADF (Bad file descriptor) [pid 3793] close(15) = -1 EBADF (Bad file descriptor) [pid 3793] close(16) = -1 EBADF (Bad file descriptor) [pid 3793] close(17) = -1 EBADF (Bad file descriptor) [pid 3793] close(18) = -1 EBADF (Bad file descriptor) [pid 3793] close(19) = -1 EBADF (Bad file descriptor) [pid 3793] close(20) = -1 EBADF (Bad file descriptor) [pid 3793] close(21) = -1 EBADF (Bad file descriptor) [pid 3793] close(22) = -1 EBADF (Bad file descriptor) [pid 3793] close(23) = -1 EBADF (Bad file descriptor) [pid 3793] close(24) = -1 EBADF (Bad file descriptor) [pid 3793] close(25) = -1 EBADF (Bad file descriptor) [pid 3793] close(26) = -1 EBADF (Bad file descriptor) [pid 3793] close(27) = -1 EBADF (Bad file descriptor) [pid 3793] close(28) = -1 EBADF (Bad file descriptor) [pid 3793] close(29) = -1 EBADF (Bad file descriptor) [pid 3793] exit_group(0) = ? [pid 3793] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=191, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./189", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./189", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./189/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./189/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./189/binderfs") = 0 [pid 3603] umount2("./189/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./189/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./189/cgroup") = 0 [pid 3603] umount2("./189/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./189/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./189/cgroup.net") = 0 [pid 3603] umount2("./189/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./189/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./189/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./189") = 0 [pid 3603] mkdir("./190", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3794 attached [pid 3794] chdir("./190" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 192 [pid 3794] <... chdir resumed>) = 0 [pid 3794] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3794] setpgid(0, 0) = 0 [pid 3794] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3794] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3794] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3794] write(3, "1000", 4) = 4 [pid 3794] close(3) = 0 [pid 3794] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3794] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3794] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3794] gettid() = 192 [pid 3794] process_vm_writev(192, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3794] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3794] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3794] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3794] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3794] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3794] close(3) = 0 [pid 3794] close(4) = 0 [pid 3794] close(5) = -1 EBADF (Bad file descriptor) [pid 3794] close(6) = -1 EBADF (Bad file descriptor) [pid 3794] close(7) = -1 EBADF (Bad file descriptor) [pid 3794] close(8) = -1 EBADF (Bad file descriptor) [pid 3794] close(9) = -1 EBADF (Bad file descriptor) [pid 3794] close(10) = -1 EBADF (Bad file descriptor) [pid 3794] close(11) = -1 EBADF (Bad file descriptor) [pid 3794] close(12) = -1 EBADF (Bad file descriptor) [pid 3794] close(13) = -1 EBADF (Bad file descriptor) [pid 3794] close(14) = -1 EBADF (Bad file descriptor) [pid 3794] close(15) = -1 EBADF (Bad file descriptor) [pid 3794] close(16) = -1 EBADF (Bad file descriptor) [pid 3794] close(17) = -1 EBADF (Bad file descriptor) [pid 3794] close(18) = -1 EBADF (Bad file descriptor) [pid 3794] close(19) = -1 EBADF (Bad file descriptor) [pid 3794] close(20) = -1 EBADF (Bad file descriptor) [pid 3794] close(21) = -1 EBADF (Bad file descriptor) [pid 3794] close(22) = -1 EBADF (Bad file descriptor) [pid 3794] close(23) = -1 EBADF (Bad file descriptor) [pid 3794] close(24) = -1 EBADF (Bad file descriptor) [pid 3794] close(25) = -1 EBADF (Bad file descriptor) [pid 3794] close(26) = -1 EBADF (Bad file descriptor) [pid 3794] close(27) = -1 EBADF (Bad file descriptor) [pid 3794] close(28) = -1 EBADF (Bad file descriptor) [pid 3794] close(29) = -1 EBADF (Bad file descriptor) [pid 3794] exit_group(0) = ? [pid 3794] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=192, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./190", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./190", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./190/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./190/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./190/binderfs") = 0 [pid 3603] umount2("./190/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./190/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./190/cgroup") = 0 [pid 3603] umount2("./190/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./190/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./190/cgroup.net") = 0 [pid 3603] umount2("./190/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./190/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./190/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./190") = 0 [pid 3603] mkdir("./191", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3795 attached , child_tidptr=0x5555567b05d0) = 193 [pid 3795] chdir("./191") = 0 [pid 3795] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3795] setpgid(0, 0) = 0 [pid 3795] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3795] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3795] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3795] write(3, "1000", 4) = 4 [pid 3795] close(3) = 0 [pid 3795] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3795] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3795] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3795] gettid() = 193 [pid 3795] process_vm_writev(193, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3795] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3795] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3795] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3795] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3795] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3795] close(3) = 0 [pid 3795] close(4) = 0 [pid 3795] close(5) = -1 EBADF (Bad file descriptor) [pid 3795] close(6) = -1 EBADF (Bad file descriptor) [pid 3795] close(7) = -1 EBADF (Bad file descriptor) [pid 3795] close(8) = -1 EBADF (Bad file descriptor) [pid 3795] close(9) = -1 EBADF (Bad file descriptor) [pid 3795] close(10) = -1 EBADF (Bad file descriptor) [pid 3795] close(11) = -1 EBADF (Bad file descriptor) [pid 3795] close(12) = -1 EBADF (Bad file descriptor) [pid 3795] close(13) = -1 EBADF (Bad file descriptor) [pid 3795] close(14) = -1 EBADF (Bad file descriptor) [pid 3795] close(15) = -1 EBADF (Bad file descriptor) [pid 3795] close(16) = -1 EBADF (Bad file descriptor) [pid 3795] close(17) = -1 EBADF (Bad file descriptor) [pid 3795] close(18) = -1 EBADF (Bad file descriptor) [pid 3795] close(19) = -1 EBADF (Bad file descriptor) [pid 3795] close(20) = -1 EBADF (Bad file descriptor) [pid 3795] close(21) = -1 EBADF (Bad file descriptor) [pid 3795] close(22) = -1 EBADF (Bad file descriptor) [pid 3795] close(23) = -1 EBADF (Bad file descriptor) [pid 3795] close(24) = -1 EBADF (Bad file descriptor) [pid 3795] close(25) = -1 EBADF (Bad file descriptor) [pid 3795] close(26) = -1 EBADF (Bad file descriptor) [pid 3795] close(27) = -1 EBADF (Bad file descriptor) [pid 3795] close(28) = -1 EBADF (Bad file descriptor) [pid 3795] close(29) = -1 EBADF (Bad file descriptor) [pid 3795] exit_group(0) = ? [pid 3795] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=193, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./191", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./191", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./191/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./191/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./191/binderfs") = 0 [pid 3603] umount2("./191/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./191/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./191/cgroup") = 0 [pid 3603] umount2("./191/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./191/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./191/cgroup.net") = 0 [pid 3603] umount2("./191/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./191/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./191/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./191") = 0 [pid 3603] mkdir("./192", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3796 attached , child_tidptr=0x5555567b05d0) = 194 [pid 3796] chdir("./192") = 0 [pid 3796] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3796] setpgid(0, 0) = 0 [pid 3796] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3796] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3796] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3796] write(3, "1000", 4) = 4 [pid 3796] close(3) = 0 [pid 3796] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3796] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3796] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3796] gettid() = 194 [pid 3796] process_vm_writev(194, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3796] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3796] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3796] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3796] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3796] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3796] close(3) = 0 [pid 3796] close(4) = 0 [pid 3796] close(5) = -1 EBADF (Bad file descriptor) [pid 3796] close(6) = -1 EBADF (Bad file descriptor) [pid 3796] close(7) = -1 EBADF (Bad file descriptor) [pid 3796] close(8) = -1 EBADF (Bad file descriptor) [pid 3796] close(9) = -1 EBADF (Bad file descriptor) [pid 3796] close(10) = -1 EBADF (Bad file descriptor) [pid 3796] close(11) = -1 EBADF (Bad file descriptor) [pid 3796] close(12) = -1 EBADF (Bad file descriptor) [pid 3796] close(13) = -1 EBADF (Bad file descriptor) [pid 3796] close(14) = -1 EBADF (Bad file descriptor) [pid 3796] close(15) = -1 EBADF (Bad file descriptor) [pid 3796] close(16) = -1 EBADF (Bad file descriptor) [pid 3796] close(17) = -1 EBADF (Bad file descriptor) [pid 3796] close(18) = -1 EBADF (Bad file descriptor) [pid 3796] close(19) = -1 EBADF (Bad file descriptor) [pid 3796] close(20) = -1 EBADF (Bad file descriptor) [pid 3796] close(21) = -1 EBADF (Bad file descriptor) [pid 3796] close(22) = -1 EBADF (Bad file descriptor) [pid 3796] close(23) = -1 EBADF (Bad file descriptor) [pid 3796] close(24) = -1 EBADF (Bad file descriptor) [pid 3796] close(25) = -1 EBADF (Bad file descriptor) [pid 3796] close(26) = -1 EBADF (Bad file descriptor) [pid 3796] close(27) = -1 EBADF (Bad file descriptor) [pid 3796] close(28) = -1 EBADF (Bad file descriptor) [pid 3796] close(29) = -1 EBADF (Bad file descriptor) [pid 3796] exit_group(0) = ? [pid 3796] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=194, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./192", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./192", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./192/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./192/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./192/binderfs") = 0 [pid 3603] umount2("./192/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./192/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./192/cgroup") = 0 [pid 3603] umount2("./192/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./192/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./192/cgroup.net") = 0 [pid 3603] umount2("./192/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./192/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./192/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./192") = 0 [pid 3603] mkdir("./193", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 195 ./strace-static-x86_64: Process 3797 attached [pid 3797] chdir("./193") = 0 [pid 3797] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3797] setpgid(0, 0) = 0 [pid 3797] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3797] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3797] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3797] write(3, "1000", 4) = 4 [pid 3797] close(3) = 0 [pid 3797] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3797] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3797] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3797] gettid() = 195 [pid 3797] process_vm_writev(195, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3797] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3797] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3797] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3797] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3797] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3797] close(3) = 0 [pid 3797] close(4) = 0 [pid 3797] close(5) = -1 EBADF (Bad file descriptor) [pid 3797] close(6) = -1 EBADF (Bad file descriptor) [pid 3797] close(7) = -1 EBADF (Bad file descriptor) [pid 3797] close(8) = -1 EBADF (Bad file descriptor) [pid 3797] close(9) = -1 EBADF (Bad file descriptor) [pid 3797] close(10) = -1 EBADF (Bad file descriptor) [pid 3797] close(11) = -1 EBADF (Bad file descriptor) [pid 3797] close(12) = -1 EBADF (Bad file descriptor) [pid 3797] close(13) = -1 EBADF (Bad file descriptor) [pid 3797] close(14) = -1 EBADF (Bad file descriptor) [pid 3797] close(15) = -1 EBADF (Bad file descriptor) [pid 3797] close(16) = -1 EBADF (Bad file descriptor) [pid 3797] close(17) = -1 EBADF (Bad file descriptor) [pid 3797] close(18) = -1 EBADF (Bad file descriptor) [pid 3797] close(19) = -1 EBADF (Bad file descriptor) [pid 3797] close(20) = -1 EBADF (Bad file descriptor) [pid 3797] close(21) = -1 EBADF (Bad file descriptor) [pid 3797] close(22) = -1 EBADF (Bad file descriptor) [pid 3797] close(23) = -1 EBADF (Bad file descriptor) [pid 3797] close(24) = -1 EBADF (Bad file descriptor) [pid 3797] close(25) = -1 EBADF (Bad file descriptor) [pid 3797] close(26) = -1 EBADF (Bad file descriptor) [pid 3797] close(27) = -1 EBADF (Bad file descriptor) [pid 3797] close(28) = -1 EBADF (Bad file descriptor) [pid 3797] close(29) = -1 EBADF (Bad file descriptor) [pid 3797] exit_group(0) = ? [pid 3797] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=195, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./193", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./193", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./193/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./193/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./193/binderfs") = 0 [pid 3603] umount2("./193/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./193/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./193/cgroup") = 0 [pid 3603] umount2("./193/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./193/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./193/cgroup.net") = 0 [pid 3603] umount2("./193/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./193/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./193/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./193") = 0 [pid 3603] mkdir("./194", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3798 attached , child_tidptr=0x5555567b05d0) = 196 [pid 3798] chdir("./194") = 0 [pid 3798] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3798] setpgid(0, 0) = 0 [pid 3798] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3798] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3798] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3798] write(3, "1000", 4) = 4 [pid 3798] close(3) = 0 [pid 3798] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3798] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3798] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3798] gettid() = 196 [pid 3798] process_vm_writev(196, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3798] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3798] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3798] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3798] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3798] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3798] close(3) = 0 [pid 3798] close(4) = 0 [pid 3798] close(5) = -1 EBADF (Bad file descriptor) [pid 3798] close(6) = -1 EBADF (Bad file descriptor) [pid 3798] close(7) = -1 EBADF (Bad file descriptor) [pid 3798] close(8) = -1 EBADF (Bad file descriptor) [pid 3798] close(9) = -1 EBADF (Bad file descriptor) [pid 3798] close(10) = -1 EBADF (Bad file descriptor) [pid 3798] close(11) = -1 EBADF (Bad file descriptor) [pid 3798] close(12) = -1 EBADF (Bad file descriptor) [pid 3798] close(13) = -1 EBADF (Bad file descriptor) [pid 3798] close(14) = -1 EBADF (Bad file descriptor) [pid 3798] close(15) = -1 EBADF (Bad file descriptor) [pid 3798] close(16) = -1 EBADF (Bad file descriptor) [pid 3798] close(17) = -1 EBADF (Bad file descriptor) [pid 3798] close(18) = -1 EBADF (Bad file descriptor) [pid 3798] close(19) = -1 EBADF (Bad file descriptor) [pid 3798] close(20) = -1 EBADF (Bad file descriptor) [pid 3798] close(21) = -1 EBADF (Bad file descriptor) [pid 3798] close(22) = -1 EBADF (Bad file descriptor) [pid 3798] close(23) = -1 EBADF (Bad file descriptor) [pid 3798] close(24) = -1 EBADF (Bad file descriptor) [pid 3798] close(25) = -1 EBADF (Bad file descriptor) [pid 3798] close(26) = -1 EBADF (Bad file descriptor) [pid 3798] close(27) = -1 EBADF (Bad file descriptor) [pid 3798] close(28) = -1 EBADF (Bad file descriptor) [pid 3798] close(29) = -1 EBADF (Bad file descriptor) [pid 3798] exit_group(0) = ? [pid 3798] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=196, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3603] umount2("./194", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./194", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./194/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./194/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./194/binderfs") = 0 [pid 3603] umount2("./194/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./194/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./194/cgroup") = 0 [pid 3603] umount2("./194/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./194/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./194/cgroup.net") = 0 [pid 3603] umount2("./194/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./194/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./194/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./194") = 0 [pid 3603] mkdir("./195", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3799 attached [pid 3799] chdir("./195" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 197 [pid 3799] <... chdir resumed>) = 0 [pid 3799] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3799] setpgid(0, 0) = 0 [pid 3799] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3799] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3799] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3799] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3799] write(3, "1000", 4) = 4 [pid 3799] close(3) = 0 [pid 3799] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3799] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3799] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3799] gettid() = 197 [pid 3799] process_vm_writev(197, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3799] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3799] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3799] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3799] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3799] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3799] close(3) = 0 [pid 3799] close(4) = 0 [pid 3799] close(5) = -1 EBADF (Bad file descriptor) [pid 3799] close(6) = -1 EBADF (Bad file descriptor) [pid 3799] close(7) = -1 EBADF (Bad file descriptor) [pid 3799] close(8) = -1 EBADF (Bad file descriptor) [pid 3799] close(9) = -1 EBADF (Bad file descriptor) [pid 3799] close(10) = -1 EBADF (Bad file descriptor) [pid 3799] close(11) = -1 EBADF (Bad file descriptor) [pid 3799] close(12) = -1 EBADF (Bad file descriptor) [pid 3799] close(13) = -1 EBADF (Bad file descriptor) [pid 3799] close(14) = -1 EBADF (Bad file descriptor) [pid 3799] close(15) = -1 EBADF (Bad file descriptor) [pid 3799] close(16) = -1 EBADF (Bad file descriptor) [pid 3799] close(17) = -1 EBADF (Bad file descriptor) [pid 3799] close(18) = -1 EBADF (Bad file descriptor) [pid 3799] close(19) = -1 EBADF (Bad file descriptor) [pid 3799] close(20) = -1 EBADF (Bad file descriptor) [pid 3799] close(21) = -1 EBADF (Bad file descriptor) [pid 3799] close(22) = -1 EBADF (Bad file descriptor) [pid 3799] close(23) = -1 EBADF (Bad file descriptor) [pid 3799] close(24) = -1 EBADF (Bad file descriptor) [pid 3799] close(25) = -1 EBADF (Bad file descriptor) [pid 3799] close(26) = -1 EBADF (Bad file descriptor) [pid 3799] close(27) = -1 EBADF (Bad file descriptor) [pid 3799] close(28) = -1 EBADF (Bad file descriptor) [pid 3799] close(29) = -1 EBADF (Bad file descriptor) [pid 3799] exit_group(0) = ? [pid 3799] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=197, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./195", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./195", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./195/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./195/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./195/binderfs") = 0 [pid 3603] umount2("./195/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./195/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./195/cgroup") = 0 [pid 3603] umount2("./195/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./195/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./195/cgroup.net") = 0 [pid 3603] umount2("./195/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./195/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./195/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./195") = 0 [pid 3603] mkdir("./196", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3800 attached [pid 3800] chdir("./196" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 198 [pid 3800] <... chdir resumed>) = 0 [pid 3800] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3800] setpgid(0, 0) = 0 [pid 3800] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3800] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3800] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3800] write(3, "1000", 4) = 4 [pid 3800] close(3) = 0 [pid 3800] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3800] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3800] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3800] gettid() = 198 [pid 3800] process_vm_writev(198, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3800] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3800] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3800] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3800] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3800] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3800] close(3) = 0 [pid 3800] close(4) = 0 [pid 3800] close(5) = -1 EBADF (Bad file descriptor) [pid 3800] close(6) = -1 EBADF (Bad file descriptor) [pid 3800] close(7) = -1 EBADF (Bad file descriptor) [pid 3800] close(8) = -1 EBADF (Bad file descriptor) [pid 3800] close(9) = -1 EBADF (Bad file descriptor) [pid 3800] close(10) = -1 EBADF (Bad file descriptor) [pid 3800] close(11) = -1 EBADF (Bad file descriptor) [pid 3800] close(12) = -1 EBADF (Bad file descriptor) [pid 3800] close(13) = -1 EBADF (Bad file descriptor) [pid 3800] close(14) = -1 EBADF (Bad file descriptor) [pid 3800] close(15) = -1 EBADF (Bad file descriptor) [pid 3800] close(16) = -1 EBADF (Bad file descriptor) [pid 3800] close(17) = -1 EBADF (Bad file descriptor) [pid 3800] close(18) = -1 EBADF (Bad file descriptor) [pid 3800] close(19) = -1 EBADF (Bad file descriptor) [pid 3800] close(20) = -1 EBADF (Bad file descriptor) [pid 3800] close(21) = -1 EBADF (Bad file descriptor) [pid 3800] close(22) = -1 EBADF (Bad file descriptor) [pid 3800] close(23) = -1 EBADF (Bad file descriptor) [pid 3800] close(24) = -1 EBADF (Bad file descriptor) [pid 3800] close(25) = -1 EBADF (Bad file descriptor) [pid 3800] close(26) = -1 EBADF (Bad file descriptor) [pid 3800] close(27) = -1 EBADF (Bad file descriptor) [pid 3800] close(28) = -1 EBADF (Bad file descriptor) [pid 3800] close(29) = -1 EBADF (Bad file descriptor) [pid 3800] exit_group(0) = ? [pid 3800] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=198, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./196", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./196", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./196/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./196/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./196/binderfs") = 0 [pid 3603] umount2("./196/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./196/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./196/cgroup") = 0 [pid 3603] umount2("./196/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./196/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./196/cgroup.net") = 0 [pid 3603] umount2("./196/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./196/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./196/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./196") = 0 [pid 3603] mkdir("./197", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3801 attached , child_tidptr=0x5555567b05d0) = 199 [pid 3801] chdir("./197") = 0 [pid 3801] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3801] setpgid(0, 0) = 0 [pid 3801] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3801] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3801] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3801] write(3, "1000", 4) = 4 [pid 3801] close(3) = 0 [pid 3801] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3801] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3801] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3801] gettid() = 199 [pid 3801] process_vm_writev(199, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3801] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3801] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3801] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3801] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3801] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3801] close(3) = 0 [pid 3801] close(4) = 0 [pid 3801] close(5) = -1 EBADF (Bad file descriptor) [pid 3801] close(6) = -1 EBADF (Bad file descriptor) [pid 3801] close(7) = -1 EBADF (Bad file descriptor) [pid 3801] close(8) = -1 EBADF (Bad file descriptor) [pid 3801] close(9) = -1 EBADF (Bad file descriptor) [pid 3801] close(10) = -1 EBADF (Bad file descriptor) [pid 3801] close(11) = -1 EBADF (Bad file descriptor) [pid 3801] close(12) = -1 EBADF (Bad file descriptor) [pid 3801] close(13) = -1 EBADF (Bad file descriptor) [pid 3801] close(14) = -1 EBADF (Bad file descriptor) [pid 3801] close(15) = -1 EBADF (Bad file descriptor) [pid 3801] close(16) = -1 EBADF (Bad file descriptor) [pid 3801] close(17) = -1 EBADF (Bad file descriptor) [pid 3801] close(18) = -1 EBADF (Bad file descriptor) [pid 3801] close(19) = -1 EBADF (Bad file descriptor) [pid 3801] close(20) = -1 EBADF (Bad file descriptor) [pid 3801] close(21) = -1 EBADF (Bad file descriptor) [pid 3801] close(22) = -1 EBADF (Bad file descriptor) [pid 3801] close(23) = -1 EBADF (Bad file descriptor) [pid 3801] close(24) = -1 EBADF (Bad file descriptor) [pid 3801] close(25) = -1 EBADF (Bad file descriptor) [pid 3801] close(26) = -1 EBADF (Bad file descriptor) [pid 3801] close(27) = -1 EBADF (Bad file descriptor) [pid 3801] close(28) = -1 EBADF (Bad file descriptor) [pid 3801] close(29) = -1 EBADF (Bad file descriptor) [pid 3801] exit_group(0) = ? [pid 3801] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=199, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./197", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./197", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./197/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./197/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./197/binderfs") = 0 [pid 3603] umount2("./197/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./197/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./197/cgroup") = 0 [pid 3603] umount2("./197/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./197/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./197/cgroup.net") = 0 [pid 3603] umount2("./197/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./197/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./197/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./197") = 0 [pid 3603] mkdir("./198", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3802 attached [pid 3802] chdir("./198" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 200 [pid 3802] <... chdir resumed>) = 0 [pid 3802] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3802] setpgid(0, 0) = 0 [pid 3802] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3802] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3802] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3802] write(3, "1000", 4) = 4 [pid 3802] close(3) = 0 [pid 3802] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3802] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3802] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3802] gettid() = 200 [pid 3802] process_vm_writev(200, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3802] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3802] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3802] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3802] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3802] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3802] close(3) = 0 [pid 3802] close(4) = 0 [pid 3802] close(5) = -1 EBADF (Bad file descriptor) [pid 3802] close(6) = -1 EBADF (Bad file descriptor) [pid 3802] close(7) = -1 EBADF (Bad file descriptor) [pid 3802] close(8) = -1 EBADF (Bad file descriptor) [pid 3802] close(9) = -1 EBADF (Bad file descriptor) [pid 3802] close(10) = -1 EBADF (Bad file descriptor) [pid 3802] close(11) = -1 EBADF (Bad file descriptor) [pid 3802] close(12) = -1 EBADF (Bad file descriptor) [pid 3802] close(13) = -1 EBADF (Bad file descriptor) [pid 3802] close(14) = -1 EBADF (Bad file descriptor) [pid 3802] close(15) = -1 EBADF (Bad file descriptor) [pid 3802] close(16) = -1 EBADF (Bad file descriptor) [pid 3802] close(17) = -1 EBADF (Bad file descriptor) [pid 3802] close(18) = -1 EBADF (Bad file descriptor) [pid 3802] close(19) = -1 EBADF (Bad file descriptor) [pid 3802] close(20) = -1 EBADF (Bad file descriptor) [pid 3802] close(21) = -1 EBADF (Bad file descriptor) [pid 3802] close(22) = -1 EBADF (Bad file descriptor) [pid 3802] close(23) = -1 EBADF (Bad file descriptor) [pid 3802] close(24) = -1 EBADF (Bad file descriptor) [pid 3802] close(25) = -1 EBADF (Bad file descriptor) [pid 3802] close(26) = -1 EBADF (Bad file descriptor) [pid 3802] close(27) = -1 EBADF (Bad file descriptor) [pid 3802] close(28) = -1 EBADF (Bad file descriptor) [pid 3802] close(29) = -1 EBADF (Bad file descriptor) [pid 3802] exit_group(0) = ? [pid 3802] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=200, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./198", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./198", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./198/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./198/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./198/binderfs") = 0 [pid 3603] umount2("./198/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./198/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./198/cgroup") = 0 [pid 3603] umount2("./198/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./198/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./198/cgroup.net") = 0 [pid 3603] umount2("./198/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./198/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./198/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./198") = 0 [pid 3603] mkdir("./199", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 201 ./strace-static-x86_64: Process 3803 attached [pid 3803] chdir("./199") = 0 [pid 3803] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3803] setpgid(0, 0) = 0 [pid 3803] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3803] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3803] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3803] write(3, "1000", 4) = 4 [pid 3803] close(3) = 0 [pid 3803] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3803] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3803] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3803] gettid() = 201 [pid 3803] process_vm_writev(201, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3803] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3803] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3803] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3803] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3803] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3803] close(3) = 0 [pid 3803] close(4) = 0 [pid 3803] close(5) = -1 EBADF (Bad file descriptor) [pid 3803] close(6) = -1 EBADF (Bad file descriptor) [pid 3803] close(7) = -1 EBADF (Bad file descriptor) [pid 3803] close(8) = -1 EBADF (Bad file descriptor) [pid 3803] close(9) = -1 EBADF (Bad file descriptor) [pid 3803] close(10) = -1 EBADF (Bad file descriptor) [pid 3803] close(11) = -1 EBADF (Bad file descriptor) [pid 3803] close(12) = -1 EBADF (Bad file descriptor) [pid 3803] close(13) = -1 EBADF (Bad file descriptor) [pid 3803] close(14) = -1 EBADF (Bad file descriptor) [pid 3803] close(15) = -1 EBADF (Bad file descriptor) [pid 3803] close(16) = -1 EBADF (Bad file descriptor) [pid 3803] close(17) = -1 EBADF (Bad file descriptor) [pid 3803] close(18) = -1 EBADF (Bad file descriptor) [pid 3803] close(19) = -1 EBADF (Bad file descriptor) [pid 3803] close(20) = -1 EBADF (Bad file descriptor) [pid 3803] close(21) = -1 EBADF (Bad file descriptor) [pid 3803] close(22) = -1 EBADF (Bad file descriptor) [pid 3803] close(23) = -1 EBADF (Bad file descriptor) [pid 3803] close(24) = -1 EBADF (Bad file descriptor) [pid 3803] close(25) = -1 EBADF (Bad file descriptor) [pid 3803] close(26) = -1 EBADF (Bad file descriptor) [pid 3803] close(27) = -1 EBADF (Bad file descriptor) [pid 3803] close(28) = -1 EBADF (Bad file descriptor) [pid 3803] close(29) = -1 EBADF (Bad file descriptor) [pid 3803] exit_group(0) = ? [pid 3803] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=201, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./199", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./199", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./199/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./199/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./199/binderfs") = 0 [pid 3603] umount2("./199/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./199/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./199/cgroup") = 0 [pid 3603] umount2("./199/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./199/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./199/cgroup.net") = 0 [pid 3603] umount2("./199/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./199/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./199/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./199") = 0 [pid 3603] mkdir("./200", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3804 attached , child_tidptr=0x5555567b05d0) = 202 [pid 3804] chdir("./200") = 0 [pid 3804] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3804] setpgid(0, 0) = 0 [pid 3804] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3804] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3804] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3804] write(3, "1000", 4) = 4 [pid 3804] close(3) = 0 [pid 3804] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3804] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3804] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3804] gettid() = 202 [pid 3804] process_vm_writev(202, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3804] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3804] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3804] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3804] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3804] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3804] close(3) = 0 [pid 3804] close(4) = 0 [pid 3804] close(5) = -1 EBADF (Bad file descriptor) [pid 3804] close(6) = -1 EBADF (Bad file descriptor) [pid 3804] close(7) = -1 EBADF (Bad file descriptor) [pid 3804] close(8) = -1 EBADF (Bad file descriptor) [pid 3804] close(9) = -1 EBADF (Bad file descriptor) [pid 3804] close(10) = -1 EBADF (Bad file descriptor) [pid 3804] close(11) = -1 EBADF (Bad file descriptor) [pid 3804] close(12) = -1 EBADF (Bad file descriptor) [pid 3804] close(13) = -1 EBADF (Bad file descriptor) [pid 3804] close(14) = -1 EBADF (Bad file descriptor) [pid 3804] close(15) = -1 EBADF (Bad file descriptor) [pid 3804] close(16) = -1 EBADF (Bad file descriptor) [pid 3804] close(17) = -1 EBADF (Bad file descriptor) [pid 3804] close(18) = -1 EBADF (Bad file descriptor) [pid 3804] close(19) = -1 EBADF (Bad file descriptor) [pid 3804] close(20) = -1 EBADF (Bad file descriptor) [pid 3804] close(21) = -1 EBADF (Bad file descriptor) [pid 3804] close(22) = -1 EBADF (Bad file descriptor) [pid 3804] close(23) = -1 EBADF (Bad file descriptor) [pid 3804] close(24) = -1 EBADF (Bad file descriptor) [pid 3804] close(25) = -1 EBADF (Bad file descriptor) [pid 3804] close(26) = -1 EBADF (Bad file descriptor) [pid 3804] close(27) = -1 EBADF (Bad file descriptor) [pid 3804] close(28) = -1 EBADF (Bad file descriptor) [pid 3804] close(29) = -1 EBADF (Bad file descriptor) [pid 3804] exit_group(0) = ? [pid 3804] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=202, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./200", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./200", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./200/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./200/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./200/binderfs") = 0 [pid 3603] umount2("./200/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./200/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./200/cgroup") = 0 [pid 3603] umount2("./200/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./200/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./200/cgroup.net") = 0 [pid 3603] umount2("./200/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./200/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./200/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./200") = 0 [pid 3603] mkdir("./201", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3805 attached , child_tidptr=0x5555567b05d0) = 203 [pid 3805] chdir("./201") = 0 [pid 3805] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3805] setpgid(0, 0) = 0 [pid 3805] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3805] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3805] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3805] write(3, "1000", 4) = 4 [pid 3805] close(3) = 0 [pid 3805] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3805] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3805] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3805] gettid() = 203 [pid 3805] process_vm_writev(203, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3805] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3805] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3805] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3805] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3805] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3805] close(3) = 0 [pid 3805] close(4) = 0 [pid 3805] close(5) = -1 EBADF (Bad file descriptor) [pid 3805] close(6) = -1 EBADF (Bad file descriptor) [pid 3805] close(7) = -1 EBADF (Bad file descriptor) [pid 3805] close(8) = -1 EBADF (Bad file descriptor) [pid 3805] close(9) = -1 EBADF (Bad file descriptor) [pid 3805] close(10) = -1 EBADF (Bad file descriptor) [pid 3805] close(11) = -1 EBADF (Bad file descriptor) [pid 3805] close(12) = -1 EBADF (Bad file descriptor) [pid 3805] close(13) = -1 EBADF (Bad file descriptor) [pid 3805] close(14) = -1 EBADF (Bad file descriptor) [pid 3805] close(15) = -1 EBADF (Bad file descriptor) [pid 3805] close(16) = -1 EBADF (Bad file descriptor) [pid 3805] close(17) = -1 EBADF (Bad file descriptor) [pid 3805] close(18) = -1 EBADF (Bad file descriptor) [pid 3805] close(19) = -1 EBADF (Bad file descriptor) [pid 3805] close(20) = -1 EBADF (Bad file descriptor) [pid 3805] close(21) = -1 EBADF (Bad file descriptor) [pid 3805] close(22) = -1 EBADF (Bad file descriptor) [pid 3805] close(23) = -1 EBADF (Bad file descriptor) [pid 3805] close(24) = -1 EBADF (Bad file descriptor) [pid 3805] close(25) = -1 EBADF (Bad file descriptor) [pid 3805] close(26) = -1 EBADF (Bad file descriptor) [pid 3805] close(27) = -1 EBADF (Bad file descriptor) [pid 3805] close(28) = -1 EBADF (Bad file descriptor) [pid 3805] close(29) = -1 EBADF (Bad file descriptor) [pid 3805] exit_group(0) = ? [pid 3805] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=203, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./201", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./201", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./201/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./201/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./201/binderfs") = 0 [pid 3603] umount2("./201/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./201/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./201/cgroup") = 0 [pid 3603] umount2("./201/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./201/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./201/cgroup.net") = 0 [pid 3603] umount2("./201/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./201/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./201/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./201") = 0 [pid 3603] mkdir("./202", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3806 attached [pid 3806] chdir("./202") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 204 [pid 3806] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3806] setpgid(0, 0) = 0 [pid 3806] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3806] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3806] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3806] write(3, "1000", 4) = 4 [pid 3806] close(3) = 0 [pid 3806] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3806] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3806] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3806] gettid() = 204 [pid 3806] process_vm_writev(204, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3806] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3806] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3806] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3806] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3806] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3806] close(3) = 0 [pid 3806] close(4) = 0 [pid 3806] close(5) = -1 EBADF (Bad file descriptor) [pid 3806] close(6) = -1 EBADF (Bad file descriptor) [pid 3806] close(7) = -1 EBADF (Bad file descriptor) [pid 3806] close(8) = -1 EBADF (Bad file descriptor) [pid 3806] close(9) = -1 EBADF (Bad file descriptor) [pid 3806] close(10) = -1 EBADF (Bad file descriptor) [pid 3806] close(11) = -1 EBADF (Bad file descriptor) [pid 3806] close(12) = -1 EBADF (Bad file descriptor) [pid 3806] close(13) = -1 EBADF (Bad file descriptor) [pid 3806] close(14) = -1 EBADF (Bad file descriptor) [pid 3806] close(15) = -1 EBADF (Bad file descriptor) [pid 3806] close(16) = -1 EBADF (Bad file descriptor) [pid 3806] close(17) = -1 EBADF (Bad file descriptor) [pid 3806] close(18) = -1 EBADF (Bad file descriptor) [pid 3806] close(19) = -1 EBADF (Bad file descriptor) [pid 3806] close(20) = -1 EBADF (Bad file descriptor) [pid 3806] close(21) = -1 EBADF (Bad file descriptor) [pid 3806] close(22) = -1 EBADF (Bad file descriptor) [pid 3806] close(23) = -1 EBADF (Bad file descriptor) [pid 3806] close(24) = -1 EBADF (Bad file descriptor) [pid 3806] close(25) = -1 EBADF (Bad file descriptor) [pid 3806] close(26) = -1 EBADF (Bad file descriptor) [pid 3806] close(27) = -1 EBADF (Bad file descriptor) [pid 3806] close(28) = -1 EBADF (Bad file descriptor) [pid 3806] close(29) = -1 EBADF (Bad file descriptor) [pid 3806] exit_group(0) = ? [pid 3806] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=204, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./202", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./202", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./202/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./202/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./202/binderfs") = 0 [pid 3603] umount2("./202/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./202/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./202/cgroup") = 0 [pid 3603] umount2("./202/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./202/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./202/cgroup.net") = 0 [pid 3603] umount2("./202/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./202/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./202/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./202") = 0 [pid 3603] mkdir("./203", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3807 attached [pid 3807] chdir("./203") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 205 [pid 3807] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3807] setpgid(0, 0) = 0 [pid 3807] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3807] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3807] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3807] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3807] write(3, "1000", 4) = 4 [pid 3807] close(3) = 0 [pid 3807] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3807] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3807] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3807] gettid() = 205 [pid 3807] process_vm_writev(205, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3807] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3807] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3807] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3807] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3807] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3807] close(3) = 0 [pid 3807] close(4) = 0 [pid 3807] close(5) = -1 EBADF (Bad file descriptor) [pid 3807] close(6) = -1 EBADF (Bad file descriptor) [pid 3807] close(7) = -1 EBADF (Bad file descriptor) [pid 3807] close(8) = -1 EBADF (Bad file descriptor) [pid 3807] close(9) = -1 EBADF (Bad file descriptor) [pid 3807] close(10) = -1 EBADF (Bad file descriptor) [pid 3807] close(11) = -1 EBADF (Bad file descriptor) [pid 3807] close(12) = -1 EBADF (Bad file descriptor) [pid 3807] close(13) = -1 EBADF (Bad file descriptor) [pid 3807] close(14) = -1 EBADF (Bad file descriptor) [pid 3807] close(15) = -1 EBADF (Bad file descriptor) [pid 3807] close(16) = -1 EBADF (Bad file descriptor) [pid 3807] close(17) = -1 EBADF (Bad file descriptor) [pid 3807] close(18) = -1 EBADF (Bad file descriptor) [pid 3807] close(19) = -1 EBADF (Bad file descriptor) [pid 3807] close(20) = -1 EBADF (Bad file descriptor) [pid 3807] close(21) = -1 EBADF (Bad file descriptor) [pid 3807] close(22) = -1 EBADF (Bad file descriptor) [pid 3807] close(23) = -1 EBADF (Bad file descriptor) [pid 3807] close(24) = -1 EBADF (Bad file descriptor) [pid 3807] close(25) = -1 EBADF (Bad file descriptor) [pid 3807] close(26) = -1 EBADF (Bad file descriptor) [pid 3807] close(27) = -1 EBADF (Bad file descriptor) [pid 3807] close(28) = -1 EBADF (Bad file descriptor) [pid 3807] close(29) = -1 EBADF (Bad file descriptor) [pid 3807] exit_group(0) = ? [pid 3807] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=205, si_uid=0, si_status=0, si_utime=1, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./203", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./203", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./203/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./203/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./203/binderfs") = 0 [pid 3603] umount2("./203/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./203/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./203/cgroup") = 0 [pid 3603] umount2("./203/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./203/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./203/cgroup.net") = 0 [pid 3603] umount2("./203/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./203/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./203/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./203") = 0 [pid 3603] mkdir("./204", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3808 attached [pid 3808] chdir("./204" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 206 [pid 3808] <... chdir resumed>) = 0 [pid 3808] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3808] setpgid(0, 0) = 0 [pid 3808] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3808] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3808] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3808] write(3, "1000", 4) = 4 [pid 3808] close(3) = 0 [pid 3808] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3808] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3808] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3808] gettid() = 206 [pid 3808] process_vm_writev(206, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3808] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3808] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3808] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3808] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3808] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3808] close(3) = 0 [pid 3808] close(4) = 0 [pid 3808] close(5) = -1 EBADF (Bad file descriptor) [pid 3808] close(6) = -1 EBADF (Bad file descriptor) [pid 3808] close(7) = -1 EBADF (Bad file descriptor) [pid 3808] close(8) = -1 EBADF (Bad file descriptor) [pid 3808] close(9) = -1 EBADF (Bad file descriptor) [pid 3808] close(10) = -1 EBADF (Bad file descriptor) [pid 3808] close(11) = -1 EBADF (Bad file descriptor) [pid 3808] close(12) = -1 EBADF (Bad file descriptor) [pid 3808] close(13) = -1 EBADF (Bad file descriptor) [pid 3808] close(14) = -1 EBADF (Bad file descriptor) [pid 3808] close(15) = -1 EBADF (Bad file descriptor) [pid 3808] close(16) = -1 EBADF (Bad file descriptor) [pid 3808] close(17) = -1 EBADF (Bad file descriptor) [pid 3808] close(18) = -1 EBADF (Bad file descriptor) [pid 3808] close(19) = -1 EBADF (Bad file descriptor) [pid 3808] close(20) = -1 EBADF (Bad file descriptor) [pid 3808] close(21) = -1 EBADF (Bad file descriptor) [pid 3808] close(22) = -1 EBADF (Bad file descriptor) [pid 3808] close(23) = -1 EBADF (Bad file descriptor) [pid 3808] close(24) = -1 EBADF (Bad file descriptor) [pid 3808] close(25) = -1 EBADF (Bad file descriptor) [pid 3808] close(26) = -1 EBADF (Bad file descriptor) [pid 3808] close(27) = -1 EBADF (Bad file descriptor) [pid 3808] close(28) = -1 EBADF (Bad file descriptor) [pid 3808] close(29) = -1 EBADF (Bad file descriptor) [pid 3808] exit_group(0) = ? [pid 3808] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=206, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./204", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./204", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./204/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./204/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./204/binderfs") = 0 [pid 3603] umount2("./204/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./204/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./204/cgroup") = 0 [pid 3603] umount2("./204/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./204/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./204/cgroup.net") = 0 [pid 3603] umount2("./204/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./204/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./204/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./204") = 0 [pid 3603] mkdir("./205", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 207 ./strace-static-x86_64: Process 3809 attached [pid 3809] chdir("./205") = 0 [pid 3809] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3809] setpgid(0, 0) = 0 [pid 3809] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3809] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3809] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3809] write(3, "1000", 4) = 4 [pid 3809] close(3) = 0 [pid 3809] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3809] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3809] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3809] gettid() = 207 [pid 3809] process_vm_writev(207, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3809] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3809] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3809] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3809] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3809] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3809] close(3) = 0 [pid 3809] close(4) = 0 [pid 3809] close(5) = -1 EBADF (Bad file descriptor) [pid 3809] close(6) = -1 EBADF (Bad file descriptor) [pid 3809] close(7) = -1 EBADF (Bad file descriptor) [pid 3809] close(8) = -1 EBADF (Bad file descriptor) [pid 3809] close(9) = -1 EBADF (Bad file descriptor) [pid 3809] close(10) = -1 EBADF (Bad file descriptor) [pid 3809] close(11) = -1 EBADF (Bad file descriptor) [pid 3809] close(12) = -1 EBADF (Bad file descriptor) [pid 3809] close(13) = -1 EBADF (Bad file descriptor) [pid 3809] close(14) = -1 EBADF (Bad file descriptor) [pid 3809] close(15) = -1 EBADF (Bad file descriptor) [pid 3809] close(16) = -1 EBADF (Bad file descriptor) [pid 3809] close(17) = -1 EBADF (Bad file descriptor) [pid 3809] close(18) = -1 EBADF (Bad file descriptor) [pid 3809] close(19) = -1 EBADF (Bad file descriptor) [pid 3809] close(20) = -1 EBADF (Bad file descriptor) [pid 3809] close(21) = -1 EBADF (Bad file descriptor) [pid 3809] close(22) = -1 EBADF (Bad file descriptor) [pid 3809] close(23) = -1 EBADF (Bad file descriptor) [pid 3809] close(24) = -1 EBADF (Bad file descriptor) [pid 3809] close(25) = -1 EBADF (Bad file descriptor) [pid 3809] close(26) = -1 EBADF (Bad file descriptor) [pid 3809] close(27) = -1 EBADF (Bad file descriptor) [pid 3809] close(28) = -1 EBADF (Bad file descriptor) [pid 3809] close(29) = -1 EBADF (Bad file descriptor) [pid 3809] exit_group(0) = ? [pid 3809] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=207, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./205", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./205", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./205/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./205/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./205/binderfs") = 0 [pid 3603] umount2("./205/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./205/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./205/cgroup") = 0 [pid 3603] umount2("./205/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./205/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./205/cgroup.net") = 0 [pid 3603] umount2("./205/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./205/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./205/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./205") = 0 [pid 3603] mkdir("./206", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 208 ./strace-static-x86_64: Process 3810 attached [pid 3810] chdir("./206") = 0 [pid 3810] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3810] setpgid(0, 0) = 0 [pid 3810] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3810] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3810] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3810] write(3, "1000", 4) = 4 [pid 3810] close(3) = 0 [pid 3810] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3810] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3810] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3810] gettid() = 208 [pid 3810] process_vm_writev(208, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3810] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3810] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3810] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3810] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3810] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3810] close(3) = 0 [pid 3810] close(4) = 0 [pid 3810] close(5) = -1 EBADF (Bad file descriptor) [pid 3810] close(6) = -1 EBADF (Bad file descriptor) [pid 3810] close(7) = -1 EBADF (Bad file descriptor) [pid 3810] close(8) = -1 EBADF (Bad file descriptor) [pid 3810] close(9) = -1 EBADF (Bad file descriptor) [pid 3810] close(10) = -1 EBADF (Bad file descriptor) [pid 3810] close(11) = -1 EBADF (Bad file descriptor) [pid 3810] close(12) = -1 EBADF (Bad file descriptor) [pid 3810] close(13) = -1 EBADF (Bad file descriptor) [pid 3810] close(14) = -1 EBADF (Bad file descriptor) [pid 3810] close(15) = -1 EBADF (Bad file descriptor) [pid 3810] close(16) = -1 EBADF (Bad file descriptor) [pid 3810] close(17) = -1 EBADF (Bad file descriptor) [pid 3810] close(18) = -1 EBADF (Bad file descriptor) [pid 3810] close(19) = -1 EBADF (Bad file descriptor) [pid 3810] close(20) = -1 EBADF (Bad file descriptor) [pid 3810] close(21) = -1 EBADF (Bad file descriptor) [pid 3810] close(22) = -1 EBADF (Bad file descriptor) [pid 3810] close(23) = -1 EBADF (Bad file descriptor) [pid 3810] close(24) = -1 EBADF (Bad file descriptor) [pid 3810] close(25) = -1 EBADF (Bad file descriptor) [pid 3810] close(26) = -1 EBADF (Bad file descriptor) [pid 3810] close(27) = -1 EBADF (Bad file descriptor) [pid 3810] close(28) = -1 EBADF (Bad file descriptor) [pid 3810] close(29) = -1 EBADF (Bad file descriptor) [pid 3810] exit_group(0) = ? [pid 3810] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=208, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./206", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./206", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./206/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./206/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./206/binderfs") = 0 [pid 3603] umount2("./206/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./206/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./206/cgroup") = 0 [pid 3603] umount2("./206/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./206/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./206/cgroup.net") = 0 [pid 3603] umount2("./206/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./206/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./206/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./206") = 0 [pid 3603] mkdir("./207", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3811 attached , child_tidptr=0x5555567b05d0) = 209 [pid 3811] chdir("./207") = 0 [pid 3811] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3811] setpgid(0, 0) = 0 [pid 3811] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3811] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3811] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3811] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3811] write(3, "1000", 4) = 4 [pid 3811] close(3) = 0 [pid 3811] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3811] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3811] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3811] gettid() = 209 [pid 3811] process_vm_writev(209, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3811] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3811] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3811] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3811] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3811] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3811] close(3) = 0 [pid 3811] close(4) = 0 [pid 3811] close(5) = -1 EBADF (Bad file descriptor) [pid 3811] close(6) = -1 EBADF (Bad file descriptor) [pid 3811] close(7) = -1 EBADF (Bad file descriptor) [pid 3811] close(8) = -1 EBADF (Bad file descriptor) [pid 3811] close(9) = -1 EBADF (Bad file descriptor) [pid 3811] close(10) = -1 EBADF (Bad file descriptor) [pid 3811] close(11) = -1 EBADF (Bad file descriptor) [pid 3811] close(12) = -1 EBADF (Bad file descriptor) [pid 3811] close(13) = -1 EBADF (Bad file descriptor) [pid 3811] close(14) = -1 EBADF (Bad file descriptor) [pid 3811] close(15) = -1 EBADF (Bad file descriptor) [pid 3811] close(16) = -1 EBADF (Bad file descriptor) [pid 3811] close(17) = -1 EBADF (Bad file descriptor) [pid 3811] close(18) = -1 EBADF (Bad file descriptor) [pid 3811] close(19) = -1 EBADF (Bad file descriptor) [pid 3811] close(20) = -1 EBADF (Bad file descriptor) [pid 3811] close(21) = -1 EBADF (Bad file descriptor) [pid 3811] close(22) = -1 EBADF (Bad file descriptor) [pid 3811] close(23) = -1 EBADF (Bad file descriptor) [pid 3811] close(24) = -1 EBADF (Bad file descriptor) [pid 3811] close(25) = -1 EBADF (Bad file descriptor) [pid 3811] close(26) = -1 EBADF (Bad file descriptor) [pid 3811] close(27) = -1 EBADF (Bad file descriptor) [pid 3811] close(28) = -1 EBADF (Bad file descriptor) [pid 3811] close(29) = -1 EBADF (Bad file descriptor) [pid 3811] exit_group(0) = ? [pid 3811] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=209, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./207", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./207", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./207/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./207/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./207/binderfs") = 0 [pid 3603] umount2("./207/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./207/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./207/cgroup") = 0 [pid 3603] umount2("./207/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./207/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./207/cgroup.net") = 0 [pid 3603] umount2("./207/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./207/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./207/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./207") = 0 [pid 3603] mkdir("./208", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3812 attached , child_tidptr=0x5555567b05d0) = 210 [pid 3812] chdir("./208") = 0 [pid 3812] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3812] setpgid(0, 0) = 0 [pid 3812] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3812] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3812] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3812] write(3, "1000", 4) = 4 [pid 3812] close(3) = 0 [pid 3812] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3812] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3812] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3812] gettid() = 210 [pid 3812] process_vm_writev(210, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3812] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3812] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3812] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3812] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3812] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3812] close(3) = 0 [pid 3812] close(4) = 0 [pid 3812] close(5) = -1 EBADF (Bad file descriptor) [pid 3812] close(6) = -1 EBADF (Bad file descriptor) [pid 3812] close(7) = -1 EBADF (Bad file descriptor) [pid 3812] close(8) = -1 EBADF (Bad file descriptor) [pid 3812] close(9) = -1 EBADF (Bad file descriptor) [pid 3812] close(10) = -1 EBADF (Bad file descriptor) [pid 3812] close(11) = -1 EBADF (Bad file descriptor) [pid 3812] close(12) = -1 EBADF (Bad file descriptor) [pid 3812] close(13) = -1 EBADF (Bad file descriptor) [pid 3812] close(14) = -1 EBADF (Bad file descriptor) [pid 3812] close(15) = -1 EBADF (Bad file descriptor) [pid 3812] close(16) = -1 EBADF (Bad file descriptor) [pid 3812] close(17) = -1 EBADF (Bad file descriptor) [pid 3812] close(18) = -1 EBADF (Bad file descriptor) [pid 3812] close(19) = -1 EBADF (Bad file descriptor) [pid 3812] close(20) = -1 EBADF (Bad file descriptor) [pid 3812] close(21) = -1 EBADF (Bad file descriptor) [pid 3812] close(22) = -1 EBADF (Bad file descriptor) [pid 3812] close(23) = -1 EBADF (Bad file descriptor) [pid 3812] close(24) = -1 EBADF (Bad file descriptor) [pid 3812] close(25) = -1 EBADF (Bad file descriptor) [pid 3812] close(26) = -1 EBADF (Bad file descriptor) [pid 3812] close(27) = -1 EBADF (Bad file descriptor) [pid 3812] close(28) = -1 EBADF (Bad file descriptor) [pid 3812] close(29) = -1 EBADF (Bad file descriptor) [pid 3812] exit_group(0) = ? [pid 3812] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=210, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./208", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./208", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./208/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./208/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./208/binderfs") = 0 [pid 3603] umount2("./208/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./208/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./208/cgroup") = 0 [pid 3603] umount2("./208/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./208/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./208/cgroup.net") = 0 [pid 3603] umount2("./208/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./208/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./208/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./208") = 0 [pid 3603] mkdir("./209", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3813 attached , child_tidptr=0x5555567b05d0) = 211 [pid 3813] chdir("./209") = 0 [pid 3813] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3813] setpgid(0, 0) = 0 [pid 3813] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3813] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3813] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3813] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3813] write(3, "1000", 4) = 4 [pid 3813] close(3) = 0 [pid 3813] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3813] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3813] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3813] gettid() = 211 [pid 3813] process_vm_writev(211, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3813] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3813] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3813] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3813] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3813] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3813] close(3) = 0 [pid 3813] close(4) = 0 [pid 3813] close(5) = -1 EBADF (Bad file descriptor) [pid 3813] close(6) = -1 EBADF (Bad file descriptor) [pid 3813] close(7) = -1 EBADF (Bad file descriptor) [pid 3813] close(8) = -1 EBADF (Bad file descriptor) [pid 3813] close(9) = -1 EBADF (Bad file descriptor) [pid 3813] close(10) = -1 EBADF (Bad file descriptor) [pid 3813] close(11) = -1 EBADF (Bad file descriptor) [pid 3813] close(12) = -1 EBADF (Bad file descriptor) [pid 3813] close(13) = -1 EBADF (Bad file descriptor) [pid 3813] close(14) = -1 EBADF (Bad file descriptor) [pid 3813] close(15) = -1 EBADF (Bad file descriptor) [pid 3813] close(16) = -1 EBADF (Bad file descriptor) [pid 3813] close(17) = -1 EBADF (Bad file descriptor) [pid 3813] close(18) = -1 EBADF (Bad file descriptor) [pid 3813] close(19) = -1 EBADF (Bad file descriptor) [pid 3813] close(20) = -1 EBADF (Bad file descriptor) [pid 3813] close(21) = -1 EBADF (Bad file descriptor) [pid 3813] close(22) = -1 EBADF (Bad file descriptor) [pid 3813] close(23) = -1 EBADF (Bad file descriptor) [pid 3813] close(24) = -1 EBADF (Bad file descriptor) [pid 3813] close(25) = -1 EBADF (Bad file descriptor) [pid 3813] close(26) = -1 EBADF (Bad file descriptor) [pid 3813] close(27) = -1 EBADF (Bad file descriptor) [pid 3813] close(28) = -1 EBADF (Bad file descriptor) [pid 3813] close(29) = -1 EBADF (Bad file descriptor) [pid 3813] exit_group(0) = ? [pid 3813] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=211, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./209", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./209", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./209/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./209/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./209/binderfs") = 0 [pid 3603] umount2("./209/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./209/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./209/cgroup") = 0 [pid 3603] umount2("./209/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./209/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./209/cgroup.net") = 0 [pid 3603] umount2("./209/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./209/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./209/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./209") = 0 [pid 3603] mkdir("./210", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3814 attached [pid 3814] chdir("./210" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 212 [pid 3814] <... chdir resumed>) = 0 [pid 3814] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3814] setpgid(0, 0) = 0 [pid 3814] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3814] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3814] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3814] write(3, "1000", 4) = 4 [pid 3814] close(3) = 0 [pid 3814] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3814] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3814] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3814] gettid() = 212 [pid 3814] process_vm_writev(212, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3814] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3814] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3814] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3814] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3814] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3814] close(3) = 0 [pid 3814] close(4) = 0 [pid 3814] close(5) = -1 EBADF (Bad file descriptor) [pid 3814] close(6) = -1 EBADF (Bad file descriptor) [pid 3814] close(7) = -1 EBADF (Bad file descriptor) [pid 3814] close(8) = -1 EBADF (Bad file descriptor) [pid 3814] close(9) = -1 EBADF (Bad file descriptor) [pid 3814] close(10) = -1 EBADF (Bad file descriptor) [pid 3814] close(11) = -1 EBADF (Bad file descriptor) [pid 3814] close(12) = -1 EBADF (Bad file descriptor) [pid 3814] close(13) = -1 EBADF (Bad file descriptor) [pid 3814] close(14) = -1 EBADF (Bad file descriptor) [pid 3814] close(15) = -1 EBADF (Bad file descriptor) [pid 3814] close(16) = -1 EBADF (Bad file descriptor) [pid 3814] close(17) = -1 EBADF (Bad file descriptor) [pid 3814] close(18) = -1 EBADF (Bad file descriptor) [pid 3814] close(19) = -1 EBADF (Bad file descriptor) [pid 3814] close(20) = -1 EBADF (Bad file descriptor) [pid 3814] close(21) = -1 EBADF (Bad file descriptor) [pid 3814] close(22) = -1 EBADF (Bad file descriptor) [pid 3814] close(23) = -1 EBADF (Bad file descriptor) [pid 3814] close(24) = -1 EBADF (Bad file descriptor) [pid 3814] close(25) = -1 EBADF (Bad file descriptor) [pid 3814] close(26) = -1 EBADF (Bad file descriptor) [pid 3814] close(27) = -1 EBADF (Bad file descriptor) [pid 3814] close(28) = -1 EBADF (Bad file descriptor) [pid 3814] close(29) = -1 EBADF (Bad file descriptor) [pid 3814] exit_group(0) = ? [pid 3814] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=212, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./210", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./210", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./210/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./210/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./210/binderfs") = 0 [pid 3603] umount2("./210/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./210/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./210/cgroup") = 0 [pid 3603] umount2("./210/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./210/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./210/cgroup.net") = 0 [pid 3603] umount2("./210/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./210/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./210/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./210") = 0 [pid 3603] mkdir("./211", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3815 attached , child_tidptr=0x5555567b05d0) = 213 [pid 3815] chdir("./211") = 0 [pid 3815] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3815] setpgid(0, 0) = 0 [pid 3815] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3815] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3815] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3815] write(3, "1000", 4) = 4 [pid 3815] close(3) = 0 [pid 3815] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3815] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3815] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3815] gettid() = 213 [pid 3815] process_vm_writev(213, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3815] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3815] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3815] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3815] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3815] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3815] close(3) = 0 [pid 3815] close(4) = 0 [pid 3815] close(5) = -1 EBADF (Bad file descriptor) [pid 3815] close(6) = -1 EBADF (Bad file descriptor) [pid 3815] close(7) = -1 EBADF (Bad file descriptor) [pid 3815] close(8) = -1 EBADF (Bad file descriptor) [pid 3815] close(9) = -1 EBADF (Bad file descriptor) [pid 3815] close(10) = -1 EBADF (Bad file descriptor) [pid 3815] close(11) = -1 EBADF (Bad file descriptor) [pid 3815] close(12) = -1 EBADF (Bad file descriptor) [pid 3815] close(13) = -1 EBADF (Bad file descriptor) [pid 3815] close(14) = -1 EBADF (Bad file descriptor) [pid 3815] close(15) = -1 EBADF (Bad file descriptor) [pid 3815] close(16) = -1 EBADF (Bad file descriptor) [pid 3815] close(17) = -1 EBADF (Bad file descriptor) [pid 3815] close(18) = -1 EBADF (Bad file descriptor) [pid 3815] close(19) = -1 EBADF (Bad file descriptor) [pid 3815] close(20) = -1 EBADF (Bad file descriptor) [pid 3815] close(21) = -1 EBADF (Bad file descriptor) [pid 3815] close(22) = -1 EBADF (Bad file descriptor) [pid 3815] close(23) = -1 EBADF (Bad file descriptor) [pid 3815] close(24) = -1 EBADF (Bad file descriptor) [pid 3815] close(25) = -1 EBADF (Bad file descriptor) [pid 3815] close(26) = -1 EBADF (Bad file descriptor) [pid 3815] close(27) = -1 EBADF (Bad file descriptor) [pid 3815] close(28) = -1 EBADF (Bad file descriptor) [pid 3815] close(29) = -1 EBADF (Bad file descriptor) [pid 3815] exit_group(0) = ? [pid 3815] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=213, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./211", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./211", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./211/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./211/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./211/binderfs") = 0 [pid 3603] umount2("./211/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./211/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./211/cgroup") = 0 [pid 3603] umount2("./211/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./211/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./211/cgroup.net") = 0 [pid 3603] umount2("./211/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./211/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./211/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./211") = 0 [pid 3603] mkdir("./212", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3816 attached , child_tidptr=0x5555567b05d0) = 214 [pid 3816] chdir("./212") = 0 [pid 3816] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3816] setpgid(0, 0) = 0 [pid 3816] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3816] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3816] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3816] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3816] write(3, "1000", 4) = 4 [pid 3816] close(3) = 0 [pid 3816] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3816] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3816] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3816] gettid() = 214 [pid 3816] process_vm_writev(214, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3816] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3816] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3816] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3816] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3816] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3816] close(3) = 0 [pid 3816] close(4) = 0 [pid 3816] close(5) = -1 EBADF (Bad file descriptor) [pid 3816] close(6) = -1 EBADF (Bad file descriptor) [pid 3816] close(7) = -1 EBADF (Bad file descriptor) [pid 3816] close(8) = -1 EBADF (Bad file descriptor) [pid 3816] close(9) = -1 EBADF (Bad file descriptor) [pid 3816] close(10) = -1 EBADF (Bad file descriptor) [pid 3816] close(11) = -1 EBADF (Bad file descriptor) [pid 3816] close(12) = -1 EBADF (Bad file descriptor) [pid 3816] close(13) = -1 EBADF (Bad file descriptor) [pid 3816] close(14) = -1 EBADF (Bad file descriptor) [pid 3816] close(15) = -1 EBADF (Bad file descriptor) [pid 3816] close(16) = -1 EBADF (Bad file descriptor) [pid 3816] close(17) = -1 EBADF (Bad file descriptor) [pid 3816] close(18) = -1 EBADF (Bad file descriptor) [pid 3816] close(19) = -1 EBADF (Bad file descriptor) [pid 3816] close(20) = -1 EBADF (Bad file descriptor) [pid 3816] close(21) = -1 EBADF (Bad file descriptor) [pid 3816] close(22) = -1 EBADF (Bad file descriptor) [pid 3816] close(23) = -1 EBADF (Bad file descriptor) [pid 3816] close(24) = -1 EBADF (Bad file descriptor) [pid 3816] close(25) = -1 EBADF (Bad file descriptor) [pid 3816] close(26) = -1 EBADF (Bad file descriptor) [pid 3816] close(27) = -1 EBADF (Bad file descriptor) [pid 3816] close(28) = -1 EBADF (Bad file descriptor) [pid 3816] close(29) = -1 EBADF (Bad file descriptor) [pid 3816] exit_group(0) = ? [pid 3816] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=214, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./212", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./212", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./212/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./212/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./212/binderfs") = 0 [pid 3603] umount2("./212/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./212/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./212/cgroup") = 0 [pid 3603] umount2("./212/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./212/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./212/cgroup.net") = 0 [pid 3603] umount2("./212/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./212/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./212/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./212") = 0 [pid 3603] mkdir("./213", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3817 attached , child_tidptr=0x5555567b05d0) = 215 [pid 3817] chdir("./213") = 0 [pid 3817] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3817] setpgid(0, 0) = 0 [pid 3817] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3817] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3817] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3817] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3817] write(3, "1000", 4) = 4 [pid 3817] close(3) = 0 [pid 3817] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3817] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3817] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3817] gettid() = 215 [pid 3817] process_vm_writev(215, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3817] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3817] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3817] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3817] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3817] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3817] close(3) = 0 [pid 3817] close(4) = 0 [pid 3817] close(5) = -1 EBADF (Bad file descriptor) [pid 3817] close(6) = -1 EBADF (Bad file descriptor) [pid 3817] close(7) = -1 EBADF (Bad file descriptor) [pid 3817] close(8) = -1 EBADF (Bad file descriptor) [pid 3817] close(9) = -1 EBADF (Bad file descriptor) [pid 3817] close(10) = -1 EBADF (Bad file descriptor) [pid 3817] close(11) = -1 EBADF (Bad file descriptor) [pid 3817] close(12) = -1 EBADF (Bad file descriptor) [pid 3817] close(13) = -1 EBADF (Bad file descriptor) [pid 3817] close(14) = -1 EBADF (Bad file descriptor) [pid 3817] close(15) = -1 EBADF (Bad file descriptor) [pid 3817] close(16) = -1 EBADF (Bad file descriptor) [pid 3817] close(17) = -1 EBADF (Bad file descriptor) [pid 3817] close(18) = -1 EBADF (Bad file descriptor) [pid 3817] close(19) = -1 EBADF (Bad file descriptor) [pid 3817] close(20) = -1 EBADF (Bad file descriptor) [pid 3817] close(21) = -1 EBADF (Bad file descriptor) [pid 3817] close(22) = -1 EBADF (Bad file descriptor) [pid 3817] close(23) = -1 EBADF (Bad file descriptor) [pid 3817] close(24) = -1 EBADF (Bad file descriptor) [pid 3817] close(25) = -1 EBADF (Bad file descriptor) [pid 3817] close(26) = -1 EBADF (Bad file descriptor) [pid 3817] close(27) = -1 EBADF (Bad file descriptor) [pid 3817] close(28) = -1 EBADF (Bad file descriptor) [pid 3817] close(29) = -1 EBADF (Bad file descriptor) [pid 3817] exit_group(0) = ? [pid 3817] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=215, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./213", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./213", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./213/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./213/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./213/binderfs") = 0 [pid 3603] umount2("./213/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./213/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./213/cgroup") = 0 [pid 3603] umount2("./213/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./213/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./213/cgroup.net") = 0 [pid 3603] umount2("./213/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./213/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./213/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./213") = 0 [pid 3603] mkdir("./214", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3818 attached , child_tidptr=0x5555567b05d0) = 216 [pid 3818] chdir("./214") = 0 [pid 3818] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3818] setpgid(0, 0) = 0 [pid 3818] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3818] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3818] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3818] write(3, "1000", 4) = 4 [pid 3818] close(3) = 0 [pid 3818] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3818] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3818] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3818] gettid() = 216 [pid 3818] process_vm_writev(216, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3818] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3818] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3818] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3818] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3818] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3818] close(3) = 0 [pid 3818] close(4) = 0 [pid 3818] close(5) = -1 EBADF (Bad file descriptor) [pid 3818] close(6) = -1 EBADF (Bad file descriptor) [pid 3818] close(7) = -1 EBADF (Bad file descriptor) [pid 3818] close(8) = -1 EBADF (Bad file descriptor) [pid 3818] close(9) = -1 EBADF (Bad file descriptor) [pid 3818] close(10) = -1 EBADF (Bad file descriptor) [pid 3818] close(11) = -1 EBADF (Bad file descriptor) [pid 3818] close(12) = -1 EBADF (Bad file descriptor) [pid 3818] close(13) = -1 EBADF (Bad file descriptor) [pid 3818] close(14) = -1 EBADF (Bad file descriptor) [pid 3818] close(15) = -1 EBADF (Bad file descriptor) [pid 3818] close(16) = -1 EBADF (Bad file descriptor) [pid 3818] close(17) = -1 EBADF (Bad file descriptor) [pid 3818] close(18) = -1 EBADF (Bad file descriptor) [pid 3818] close(19) = -1 EBADF (Bad file descriptor) [pid 3818] close(20) = -1 EBADF (Bad file descriptor) [pid 3818] close(21) = -1 EBADF (Bad file descriptor) [pid 3818] close(22) = -1 EBADF (Bad file descriptor) [pid 3818] close(23) = -1 EBADF (Bad file descriptor) [pid 3818] close(24) = -1 EBADF (Bad file descriptor) [pid 3818] close(25) = -1 EBADF (Bad file descriptor) [pid 3818] close(26) = -1 EBADF (Bad file descriptor) [pid 3818] close(27) = -1 EBADF (Bad file descriptor) [pid 3818] close(28) = -1 EBADF (Bad file descriptor) [pid 3818] close(29) = -1 EBADF (Bad file descriptor) [pid 3818] exit_group(0) = ? [pid 3818] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=216, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./214", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./214", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./214/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./214/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./214/binderfs") = 0 [pid 3603] umount2("./214/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./214/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./214/cgroup") = 0 [pid 3603] umount2("./214/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./214/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./214/cgroup.net") = 0 [pid 3603] umount2("./214/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./214/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./214/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./214") = 0 [pid 3603] mkdir("./215", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3819 attached , child_tidptr=0x5555567b05d0) = 217 [pid 3819] chdir("./215") = 0 [pid 3819] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3819] setpgid(0, 0) = 0 [pid 3819] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3819] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3819] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3819] write(3, "1000", 4) = 4 [pid 3819] close(3) = 0 [pid 3819] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3819] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3819] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3819] gettid() = 217 [pid 3819] process_vm_writev(217, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3819] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3819] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3819] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3819] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3819] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3819] close(3) = 0 [pid 3819] close(4) = 0 [pid 3819] close(5) = -1 EBADF (Bad file descriptor) [pid 3819] close(6) = -1 EBADF (Bad file descriptor) [pid 3819] close(7) = -1 EBADF (Bad file descriptor) [pid 3819] close(8) = -1 EBADF (Bad file descriptor) [pid 3819] close(9) = -1 EBADF (Bad file descriptor) [pid 3819] close(10) = -1 EBADF (Bad file descriptor) [pid 3819] close(11) = -1 EBADF (Bad file descriptor) [pid 3819] close(12) = -1 EBADF (Bad file descriptor) [pid 3819] close(13) = -1 EBADF (Bad file descriptor) [pid 3819] close(14) = -1 EBADF (Bad file descriptor) [pid 3819] close(15) = -1 EBADF (Bad file descriptor) [pid 3819] close(16) = -1 EBADF (Bad file descriptor) [pid 3819] close(17) = -1 EBADF (Bad file descriptor) [pid 3819] close(18) = -1 EBADF (Bad file descriptor) [pid 3819] close(19) = -1 EBADF (Bad file descriptor) [pid 3819] close(20) = -1 EBADF (Bad file descriptor) [pid 3819] close(21) = -1 EBADF (Bad file descriptor) [pid 3819] close(22) = -1 EBADF (Bad file descriptor) [pid 3819] close(23) = -1 EBADF (Bad file descriptor) [pid 3819] close(24) = -1 EBADF (Bad file descriptor) [pid 3819] close(25) = -1 EBADF (Bad file descriptor) [pid 3819] close(26) = -1 EBADF (Bad file descriptor) [pid 3819] close(27) = -1 EBADF (Bad file descriptor) [pid 3819] close(28) = -1 EBADF (Bad file descriptor) [pid 3819] close(29) = -1 EBADF (Bad file descriptor) [pid 3819] exit_group(0) = ? [pid 3819] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=217, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./215", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./215", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./215/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./215/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./215/binderfs") = 0 [pid 3603] umount2("./215/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./215/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./215/cgroup") = 0 [pid 3603] umount2("./215/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./215/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./215/cgroup.net") = 0 [pid 3603] umount2("./215/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./215/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./215/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./215") = 0 [pid 3603] mkdir("./216", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3820 attached , child_tidptr=0x5555567b05d0) = 218 [pid 3820] chdir("./216") = 0 [pid 3820] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3820] setpgid(0, 0) = 0 [pid 3820] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3820] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3820] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3820] write(3, "1000", 4) = 4 [pid 3820] close(3) = 0 [pid 3820] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3820] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3820] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3820] gettid() = 218 [pid 3820] process_vm_writev(218, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3820] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3820] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3820] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3820] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3820] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3820] close(3) = 0 [pid 3820] close(4) = 0 [pid 3820] close(5) = -1 EBADF (Bad file descriptor) [pid 3820] close(6) = -1 EBADF (Bad file descriptor) [pid 3820] close(7) = -1 EBADF (Bad file descriptor) [pid 3820] close(8) = -1 EBADF (Bad file descriptor) [pid 3820] close(9) = -1 EBADF (Bad file descriptor) [pid 3820] close(10) = -1 EBADF (Bad file descriptor) [pid 3820] close(11) = -1 EBADF (Bad file descriptor) [pid 3820] close(12) = -1 EBADF (Bad file descriptor) [pid 3820] close(13) = -1 EBADF (Bad file descriptor) [pid 3820] close(14) = -1 EBADF (Bad file descriptor) [pid 3820] close(15) = -1 EBADF (Bad file descriptor) [pid 3820] close(16) = -1 EBADF (Bad file descriptor) [pid 3820] close(17) = -1 EBADF (Bad file descriptor) [pid 3820] close(18) = -1 EBADF (Bad file descriptor) [pid 3820] close(19) = -1 EBADF (Bad file descriptor) [pid 3820] close(20) = -1 EBADF (Bad file descriptor) [pid 3820] close(21) = -1 EBADF (Bad file descriptor) [pid 3820] close(22) = -1 EBADF (Bad file descriptor) [pid 3820] close(23) = -1 EBADF (Bad file descriptor) [pid 3820] close(24) = -1 EBADF (Bad file descriptor) [pid 3820] close(25) = -1 EBADF (Bad file descriptor) [pid 3820] close(26) = -1 EBADF (Bad file descriptor) [pid 3820] close(27) = -1 EBADF (Bad file descriptor) [pid 3820] close(28) = -1 EBADF (Bad file descriptor) [pid 3820] close(29) = -1 EBADF (Bad file descriptor) [pid 3820] exit_group(0) = ? [pid 3820] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=218, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./216", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./216", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./216/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./216/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./216/binderfs") = 0 [pid 3603] umount2("./216/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./216/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./216/cgroup") = 0 [pid 3603] umount2("./216/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./216/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./216/cgroup.net") = 0 [pid 3603] umount2("./216/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./216/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./216/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./216") = 0 [pid 3603] mkdir("./217", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3821 attached [pid 3821] chdir("./217") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 219 [pid 3821] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3821] setpgid(0, 0) = 0 [pid 3821] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3821] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3821] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3821] write(3, "1000", 4) = 4 [pid 3821] close(3) = 0 [pid 3821] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3821] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3821] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3821] gettid() = 219 [pid 3821] process_vm_writev(219, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3821] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3821] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3821] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3821] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3821] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3821] close(3) = 0 [pid 3821] close(4) = 0 [pid 3821] close(5) = -1 EBADF (Bad file descriptor) [pid 3821] close(6) = -1 EBADF (Bad file descriptor) [pid 3821] close(7) = -1 EBADF (Bad file descriptor) [pid 3821] close(8) = -1 EBADF (Bad file descriptor) [pid 3821] close(9) = -1 EBADF (Bad file descriptor) [pid 3821] close(10) = -1 EBADF (Bad file descriptor) [pid 3821] close(11) = -1 EBADF (Bad file descriptor) [pid 3821] close(12) = -1 EBADF (Bad file descriptor) [pid 3821] close(13) = -1 EBADF (Bad file descriptor) [pid 3821] close(14) = -1 EBADF (Bad file descriptor) [pid 3821] close(15) = -1 EBADF (Bad file descriptor) [pid 3821] close(16) = -1 EBADF (Bad file descriptor) [pid 3821] close(17) = -1 EBADF (Bad file descriptor) [pid 3821] close(18) = -1 EBADF (Bad file descriptor) [pid 3821] close(19) = -1 EBADF (Bad file descriptor) [pid 3821] close(20) = -1 EBADF (Bad file descriptor) [pid 3821] close(21) = -1 EBADF (Bad file descriptor) [pid 3821] close(22) = -1 EBADF (Bad file descriptor) [pid 3821] close(23) = -1 EBADF (Bad file descriptor) [pid 3821] close(24) = -1 EBADF (Bad file descriptor) [pid 3821] close(25) = -1 EBADF (Bad file descriptor) [pid 3821] close(26) = -1 EBADF (Bad file descriptor) [pid 3821] close(27) = -1 EBADF (Bad file descriptor) [pid 3821] close(28) = -1 EBADF (Bad file descriptor) [pid 3821] close(29) = -1 EBADF (Bad file descriptor) [pid 3821] exit_group(0) = ? [pid 3821] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=219, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./217", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./217", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./217/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./217/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./217/binderfs") = 0 [pid 3603] umount2("./217/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./217/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./217/cgroup") = 0 [pid 3603] umount2("./217/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./217/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./217/cgroup.net") = 0 [pid 3603] umount2("./217/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./217/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./217/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./217") = 0 [pid 3603] mkdir("./218", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 220 ./strace-static-x86_64: Process 3822 attached [pid 3822] chdir("./218") = 0 [pid 3822] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3822] setpgid(0, 0) = 0 [pid 3822] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3822] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3822] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3822] write(3, "1000", 4) = 4 [pid 3822] close(3) = 0 [pid 3822] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3822] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3822] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3822] gettid() = 220 [pid 3822] process_vm_writev(220, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3822] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3822] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3822] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3822] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3822] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3822] close(3) = 0 [pid 3822] close(4) = 0 [pid 3822] close(5) = -1 EBADF (Bad file descriptor) [pid 3822] close(6) = -1 EBADF (Bad file descriptor) [pid 3822] close(7) = -1 EBADF (Bad file descriptor) [pid 3822] close(8) = -1 EBADF (Bad file descriptor) [pid 3822] close(9) = -1 EBADF (Bad file descriptor) [pid 3822] close(10) = -1 EBADF (Bad file descriptor) [pid 3822] close(11) = -1 EBADF (Bad file descriptor) [pid 3822] close(12) = -1 EBADF (Bad file descriptor) [pid 3822] close(13) = -1 EBADF (Bad file descriptor) [pid 3822] close(14) = -1 EBADF (Bad file descriptor) [pid 3822] close(15) = -1 EBADF (Bad file descriptor) [pid 3822] close(16) = -1 EBADF (Bad file descriptor) [pid 3822] close(17) = -1 EBADF (Bad file descriptor) [pid 3822] close(18) = -1 EBADF (Bad file descriptor) [pid 3822] close(19) = -1 EBADF (Bad file descriptor) [pid 3822] close(20) = -1 EBADF (Bad file descriptor) [pid 3822] close(21) = -1 EBADF (Bad file descriptor) [pid 3822] close(22) = -1 EBADF (Bad file descriptor) [pid 3822] close(23) = -1 EBADF (Bad file descriptor) [pid 3822] close(24) = -1 EBADF (Bad file descriptor) [pid 3822] close(25) = -1 EBADF (Bad file descriptor) [pid 3822] close(26) = -1 EBADF (Bad file descriptor) [pid 3822] close(27) = -1 EBADF (Bad file descriptor) [pid 3822] close(28) = -1 EBADF (Bad file descriptor) [pid 3822] close(29) = -1 EBADF (Bad file descriptor) [pid 3822] exit_group(0) = ? [pid 3822] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=220, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./218", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./218", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./218/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./218/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./218/binderfs") = 0 [pid 3603] umount2("./218/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./218/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./218/cgroup") = 0 [pid 3603] umount2("./218/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./218/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./218/cgroup.net") = 0 [pid 3603] umount2("./218/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./218/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./218/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./218") = 0 [pid 3603] mkdir("./219", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3823 attached , child_tidptr=0x5555567b05d0) = 221 [pid 3823] chdir("./219") = 0 [pid 3823] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3823] setpgid(0, 0) = 0 [pid 3823] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3823] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3823] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3823] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3823] write(3, "1000", 4) = 4 [pid 3823] close(3) = 0 [pid 3823] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3823] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3823] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3823] gettid() = 221 [pid 3823] process_vm_writev(221, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3823] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3823] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3823] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3823] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3823] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3823] close(3) = 0 [pid 3823] close(4) = 0 [pid 3823] close(5) = -1 EBADF (Bad file descriptor) [pid 3823] close(6) = -1 EBADF (Bad file descriptor) [pid 3823] close(7) = -1 EBADF (Bad file descriptor) [pid 3823] close(8) = -1 EBADF (Bad file descriptor) [pid 3823] close(9) = -1 EBADF (Bad file descriptor) [pid 3823] close(10) = -1 EBADF (Bad file descriptor) [pid 3823] close(11) = -1 EBADF (Bad file descriptor) [pid 3823] close(12) = -1 EBADF (Bad file descriptor) [pid 3823] close(13) = -1 EBADF (Bad file descriptor) [pid 3823] close(14) = -1 EBADF (Bad file descriptor) [pid 3823] close(15) = -1 EBADF (Bad file descriptor) [pid 3823] close(16) = -1 EBADF (Bad file descriptor) [pid 3823] close(17) = -1 EBADF (Bad file descriptor) [pid 3823] close(18) = -1 EBADF (Bad file descriptor) [pid 3823] close(19) = -1 EBADF (Bad file descriptor) [pid 3823] close(20) = -1 EBADF (Bad file descriptor) [pid 3823] close(21) = -1 EBADF (Bad file descriptor) [pid 3823] close(22) = -1 EBADF (Bad file descriptor) [pid 3823] close(23) = -1 EBADF (Bad file descriptor) [pid 3823] close(24) = -1 EBADF (Bad file descriptor) [pid 3823] close(25) = -1 EBADF (Bad file descriptor) [pid 3823] close(26) = -1 EBADF (Bad file descriptor) [pid 3823] close(27) = -1 EBADF (Bad file descriptor) [pid 3823] close(28) = -1 EBADF (Bad file descriptor) [pid 3823] close(29) = -1 EBADF (Bad file descriptor) [pid 3823] exit_group(0) = ? [pid 3823] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=221, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./219", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./219", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./219/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./219/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./219/binderfs") = 0 [pid 3603] umount2("./219/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./219/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./219/cgroup") = 0 [pid 3603] umount2("./219/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./219/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./219/cgroup.net") = 0 [pid 3603] umount2("./219/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./219/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./219/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./219") = 0 [pid 3603] mkdir("./220", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3824 attached [pid 3824] chdir("./220") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 222 [pid 3824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3824] setpgid(0, 0) = 0 [pid 3824] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3824] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3824] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3824] write(3, "1000", 4) = 4 [pid 3824] close(3) = 0 [pid 3824] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3824] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3824] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3824] gettid() = 222 [pid 3824] process_vm_writev(222, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3824] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3824] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3824] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3824] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3824] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3824] close(3) = 0 [pid 3824] close(4) = 0 [pid 3824] close(5) = -1 EBADF (Bad file descriptor) [pid 3824] close(6) = -1 EBADF (Bad file descriptor) [pid 3824] close(7) = -1 EBADF (Bad file descriptor) [pid 3824] close(8) = -1 EBADF (Bad file descriptor) [pid 3824] close(9) = -1 EBADF (Bad file descriptor) [pid 3824] close(10) = -1 EBADF (Bad file descriptor) [pid 3824] close(11) = -1 EBADF (Bad file descriptor) [pid 3824] close(12) = -1 EBADF (Bad file descriptor) [pid 3824] close(13) = -1 EBADF (Bad file descriptor) [pid 3824] close(14) = -1 EBADF (Bad file descriptor) [pid 3824] close(15) = -1 EBADF (Bad file descriptor) [pid 3824] close(16) = -1 EBADF (Bad file descriptor) [pid 3824] close(17) = -1 EBADF (Bad file descriptor) [pid 3824] close(18) = -1 EBADF (Bad file descriptor) [pid 3824] close(19) = -1 EBADF (Bad file descriptor) [pid 3824] close(20) = -1 EBADF (Bad file descriptor) [pid 3824] close(21) = -1 EBADF (Bad file descriptor) [pid 3824] close(22) = -1 EBADF (Bad file descriptor) [pid 3824] close(23) = -1 EBADF (Bad file descriptor) [pid 3824] close(24) = -1 EBADF (Bad file descriptor) [pid 3824] close(25) = -1 EBADF (Bad file descriptor) [pid 3824] close(26) = -1 EBADF (Bad file descriptor) [pid 3824] close(27) = -1 EBADF (Bad file descriptor) [pid 3824] close(28) = -1 EBADF (Bad file descriptor) [pid 3824] close(29) = -1 EBADF (Bad file descriptor) [pid 3824] exit_group(0) = ? [pid 3824] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=222, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3603] umount2("./220", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./220", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./220/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./220/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./220/binderfs") = 0 [pid 3603] umount2("./220/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./220/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./220/cgroup") = 0 [pid 3603] umount2("./220/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./220/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./220/cgroup.net") = 0 [pid 3603] umount2("./220/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./220/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./220/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./220") = 0 [pid 3603] mkdir("./221", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3825 attached , child_tidptr=0x5555567b05d0) = 223 [pid 3825] chdir("./221") = 0 [pid 3825] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3825] setpgid(0, 0) = 0 [pid 3825] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3825] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3825] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3825] write(3, "1000", 4) = 4 [pid 3825] close(3) = 0 [pid 3825] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3825] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3825] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3825] gettid() = 223 [pid 3825] process_vm_writev(223, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3825] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3825] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3825] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3825] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3825] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3825] close(3) = 0 [pid 3825] close(4) = 0 [pid 3825] close(5) = -1 EBADF (Bad file descriptor) [pid 3825] close(6) = -1 EBADF (Bad file descriptor) [pid 3825] close(7) = -1 EBADF (Bad file descriptor) [pid 3825] close(8) = -1 EBADF (Bad file descriptor) [pid 3825] close(9) = -1 EBADF (Bad file descriptor) [pid 3825] close(10) = -1 EBADF (Bad file descriptor) [pid 3825] close(11) = -1 EBADF (Bad file descriptor) [pid 3825] close(12) = -1 EBADF (Bad file descriptor) [pid 3825] close(13) = -1 EBADF (Bad file descriptor) [pid 3825] close(14) = -1 EBADF (Bad file descriptor) [pid 3825] close(15) = -1 EBADF (Bad file descriptor) [pid 3825] close(16) = -1 EBADF (Bad file descriptor) [pid 3825] close(17) = -1 EBADF (Bad file descriptor) [pid 3825] close(18) = -1 EBADF (Bad file descriptor) [pid 3825] close(19) = -1 EBADF (Bad file descriptor) [pid 3825] close(20) = -1 EBADF (Bad file descriptor) [pid 3825] close(21) = -1 EBADF (Bad file descriptor) [pid 3825] close(22) = -1 EBADF (Bad file descriptor) [pid 3825] close(23) = -1 EBADF (Bad file descriptor) [pid 3825] close(24) = -1 EBADF (Bad file descriptor) [pid 3825] close(25) = -1 EBADF (Bad file descriptor) [pid 3825] close(26) = -1 EBADF (Bad file descriptor) [pid 3825] close(27) = -1 EBADF (Bad file descriptor) [pid 3825] close(28) = -1 EBADF (Bad file descriptor) [pid 3825] close(29) = -1 EBADF (Bad file descriptor) [pid 3825] exit_group(0) = ? [pid 3825] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=223, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./221", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./221", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./221/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./221/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./221/binderfs") = 0 [pid 3603] umount2("./221/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./221/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./221/cgroup") = 0 [pid 3603] umount2("./221/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./221/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./221/cgroup.net") = 0 [pid 3603] umount2("./221/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./221/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./221/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./221") = 0 [pid 3603] mkdir("./222", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3826 attached , child_tidptr=0x5555567b05d0) = 224 [pid 3826] chdir("./222") = 0 [pid 3826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3826] setpgid(0, 0) = 0 [pid 3826] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3826] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3826] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3826] write(3, "1000", 4) = 4 [pid 3826] close(3) = 0 [pid 3826] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3826] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3826] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3826] gettid() = 224 [pid 3826] process_vm_writev(224, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3826] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3826] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3826] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3826] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3826] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3826] close(3) = 0 [pid 3826] close(4) = 0 [pid 3826] close(5) = -1 EBADF (Bad file descriptor) [pid 3826] close(6) = -1 EBADF (Bad file descriptor) [pid 3826] close(7) = -1 EBADF (Bad file descriptor) [pid 3826] close(8) = -1 EBADF (Bad file descriptor) [pid 3826] close(9) = -1 EBADF (Bad file descriptor) [pid 3826] close(10) = -1 EBADF (Bad file descriptor) [pid 3826] close(11) = -1 EBADF (Bad file descriptor) [pid 3826] close(12) = -1 EBADF (Bad file descriptor) [pid 3826] close(13) = -1 EBADF (Bad file descriptor) [pid 3826] close(14) = -1 EBADF (Bad file descriptor) [pid 3826] close(15) = -1 EBADF (Bad file descriptor) [pid 3826] close(16) = -1 EBADF (Bad file descriptor) [pid 3826] close(17) = -1 EBADF (Bad file descriptor) [pid 3826] close(18) = -1 EBADF (Bad file descriptor) [pid 3826] close(19) = -1 EBADF (Bad file descriptor) [pid 3826] close(20) = -1 EBADF (Bad file descriptor) [pid 3826] close(21) = -1 EBADF (Bad file descriptor) [pid 3826] close(22) = -1 EBADF (Bad file descriptor) [pid 3826] close(23) = -1 EBADF (Bad file descriptor) [pid 3826] close(24) = -1 EBADF (Bad file descriptor) [pid 3826] close(25) = -1 EBADF (Bad file descriptor) [pid 3826] close(26) = -1 EBADF (Bad file descriptor) [pid 3826] close(27) = -1 EBADF (Bad file descriptor) [pid 3826] close(28) = -1 EBADF (Bad file descriptor) [pid 3826] close(29) = -1 EBADF (Bad file descriptor) [pid 3826] exit_group(0) = ? [pid 3826] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=224, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./222", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./222", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./222/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./222/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./222/binderfs") = 0 [pid 3603] umount2("./222/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./222/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./222/cgroup") = 0 [pid 3603] umount2("./222/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./222/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./222/cgroup.net") = 0 [pid 3603] umount2("./222/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./222/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./222/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./222") = 0 [pid 3603] mkdir("./223", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3827 attached , child_tidptr=0x5555567b05d0) = 225 [pid 3827] chdir("./223") = 0 [pid 3827] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3827] setpgid(0, 0) = 0 [pid 3827] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3827] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3827] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3827] write(3, "1000", 4) = 4 [pid 3827] close(3) = 0 [pid 3827] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3827] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3827] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3827] gettid() = 225 [pid 3827] process_vm_writev(225, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3827] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3827] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3827] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3827] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3827] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3827] close(3) = 0 [pid 3827] close(4) = 0 [pid 3827] close(5) = -1 EBADF (Bad file descriptor) [pid 3827] close(6) = -1 EBADF (Bad file descriptor) [pid 3827] close(7) = -1 EBADF (Bad file descriptor) [pid 3827] close(8) = -1 EBADF (Bad file descriptor) [pid 3827] close(9) = -1 EBADF (Bad file descriptor) [pid 3827] close(10) = -1 EBADF (Bad file descriptor) [pid 3827] close(11) = -1 EBADF (Bad file descriptor) [pid 3827] close(12) = -1 EBADF (Bad file descriptor) [pid 3827] close(13) = -1 EBADF (Bad file descriptor) [pid 3827] close(14) = -1 EBADF (Bad file descriptor) [pid 3827] close(15) = -1 EBADF (Bad file descriptor) [pid 3827] close(16) = -1 EBADF (Bad file descriptor) [pid 3827] close(17) = -1 EBADF (Bad file descriptor) [pid 3827] close(18) = -1 EBADF (Bad file descriptor) [pid 3827] close(19) = -1 EBADF (Bad file descriptor) [pid 3827] close(20) = -1 EBADF (Bad file descriptor) [pid 3827] close(21) = -1 EBADF (Bad file descriptor) [pid 3827] close(22) = -1 EBADF (Bad file descriptor) [pid 3827] close(23) = -1 EBADF (Bad file descriptor) [pid 3827] close(24) = -1 EBADF (Bad file descriptor) [pid 3827] close(25) = -1 EBADF (Bad file descriptor) [pid 3827] close(26) = -1 EBADF (Bad file descriptor) [pid 3827] close(27) = -1 EBADF (Bad file descriptor) [pid 3827] close(28) = -1 EBADF (Bad file descriptor) [pid 3827] close(29) = -1 EBADF (Bad file descriptor) [pid 3827] exit_group(0) = ? [pid 3827] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=225, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./223", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./223", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./223/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./223/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./223/binderfs") = 0 [pid 3603] umount2("./223/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./223/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./223/cgroup") = 0 [pid 3603] umount2("./223/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./223/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./223/cgroup.net") = 0 [pid 3603] umount2("./223/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./223/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./223/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./223") = 0 [pid 3603] mkdir("./224", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3828 attached , child_tidptr=0x5555567b05d0) = 226 [pid 3828] chdir("./224") = 0 [pid 3828] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3828] setpgid(0, 0) = 0 [pid 3828] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3828] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3828] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3828] write(3, "1000", 4) = 4 [pid 3828] close(3) = 0 [pid 3828] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3828] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3828] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3828] gettid() = 226 [pid 3828] process_vm_writev(226, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3828] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3828] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3828] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3828] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3828] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3828] close(3) = 0 [pid 3828] close(4) = 0 [pid 3828] close(5) = -1 EBADF (Bad file descriptor) [pid 3828] close(6) = -1 EBADF (Bad file descriptor) [pid 3828] close(7) = -1 EBADF (Bad file descriptor) [pid 3828] close(8) = -1 EBADF (Bad file descriptor) [pid 3828] close(9) = -1 EBADF (Bad file descriptor) [pid 3828] close(10) = -1 EBADF (Bad file descriptor) [pid 3828] close(11) = -1 EBADF (Bad file descriptor) [pid 3828] close(12) = -1 EBADF (Bad file descriptor) [pid 3828] close(13) = -1 EBADF (Bad file descriptor) [pid 3828] close(14) = -1 EBADF (Bad file descriptor) [pid 3828] close(15) = -1 EBADF (Bad file descriptor) [pid 3828] close(16) = -1 EBADF (Bad file descriptor) [pid 3828] close(17) = -1 EBADF (Bad file descriptor) [pid 3828] close(18) = -1 EBADF (Bad file descriptor) [pid 3828] close(19) = -1 EBADF (Bad file descriptor) [pid 3828] close(20) = -1 EBADF (Bad file descriptor) [pid 3828] close(21) = -1 EBADF (Bad file descriptor) [pid 3828] close(22) = -1 EBADF (Bad file descriptor) [pid 3828] close(23) = -1 EBADF (Bad file descriptor) [pid 3828] close(24) = -1 EBADF (Bad file descriptor) [pid 3828] close(25) = -1 EBADF (Bad file descriptor) [pid 3828] close(26) = -1 EBADF (Bad file descriptor) [pid 3828] close(27) = -1 EBADF (Bad file descriptor) [pid 3828] close(28) = -1 EBADF (Bad file descriptor) [pid 3828] close(29) = -1 EBADF (Bad file descriptor) [pid 3828] exit_group(0) = ? [pid 3828] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=226, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./224", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./224", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./224/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./224/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./224/binderfs") = 0 [pid 3603] umount2("./224/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./224/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./224/cgroup") = 0 [pid 3603] umount2("./224/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./224/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./224/cgroup.net") = 0 [pid 3603] umount2("./224/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./224/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./224/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./224") = 0 [pid 3603] mkdir("./225", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3829 attached [pid 3829] chdir("./225") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 227 [pid 3829] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3829] setpgid(0, 0) = 0 [pid 3829] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3829] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3829] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3829] write(3, "1000", 4) = 4 [pid 3829] close(3) = 0 [pid 3829] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3829] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3829] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3829] gettid() = 227 [pid 3829] process_vm_writev(227, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3829] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3829] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3829] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3829] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3829] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3829] close(3) = 0 [pid 3829] close(4) = 0 [pid 3829] close(5) = -1 EBADF (Bad file descriptor) [pid 3829] close(6) = -1 EBADF (Bad file descriptor) [pid 3829] close(7) = -1 EBADF (Bad file descriptor) [pid 3829] close(8) = -1 EBADF (Bad file descriptor) [pid 3829] close(9) = -1 EBADF (Bad file descriptor) [pid 3829] close(10) = -1 EBADF (Bad file descriptor) [pid 3829] close(11) = -1 EBADF (Bad file descriptor) [pid 3829] close(12) = -1 EBADF (Bad file descriptor) [pid 3829] close(13) = -1 EBADF (Bad file descriptor) [pid 3829] close(14) = -1 EBADF (Bad file descriptor) [pid 3829] close(15) = -1 EBADF (Bad file descriptor) [pid 3829] close(16) = -1 EBADF (Bad file descriptor) [pid 3829] close(17) = -1 EBADF (Bad file descriptor) [pid 3829] close(18) = -1 EBADF (Bad file descriptor) [pid 3829] close(19) = -1 EBADF (Bad file descriptor) [pid 3829] close(20) = -1 EBADF (Bad file descriptor) [pid 3829] close(21) = -1 EBADF (Bad file descriptor) [pid 3829] close(22) = -1 EBADF (Bad file descriptor) [pid 3829] close(23) = -1 EBADF (Bad file descriptor) [pid 3829] close(24) = -1 EBADF (Bad file descriptor) [pid 3829] close(25) = -1 EBADF (Bad file descriptor) [pid 3829] close(26) = -1 EBADF (Bad file descriptor) [pid 3829] close(27) = -1 EBADF (Bad file descriptor) [pid 3829] close(28) = -1 EBADF (Bad file descriptor) [pid 3829] close(29) = -1 EBADF (Bad file descriptor) [pid 3829] exit_group(0) = ? [pid 3829] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=227, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./225", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./225", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./225/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./225/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./225/binderfs") = 0 [pid 3603] umount2("./225/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./225/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./225/cgroup") = 0 [pid 3603] umount2("./225/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./225/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./225/cgroup.net") = 0 [pid 3603] umount2("./225/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./225/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./225/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./225") = 0 [pid 3603] mkdir("./226", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3830 attached , child_tidptr=0x5555567b05d0) = 228 [pid 3830] chdir("./226") = 0 [pid 3830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3830] setpgid(0, 0) = 0 [pid 3830] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3830] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3830] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3830] write(3, "1000", 4) = 4 [pid 3830] close(3) = 0 [pid 3830] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3830] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3830] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3830] gettid() = 228 [pid 3830] process_vm_writev(228, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3830] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3830] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3830] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3830] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3830] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3830] close(3) = 0 [pid 3830] close(4) = 0 [pid 3830] close(5) = -1 EBADF (Bad file descriptor) [pid 3830] close(6) = -1 EBADF (Bad file descriptor) [pid 3830] close(7) = -1 EBADF (Bad file descriptor) [pid 3830] close(8) = -1 EBADF (Bad file descriptor) [pid 3830] close(9) = -1 EBADF (Bad file descriptor) [pid 3830] close(10) = -1 EBADF (Bad file descriptor) [pid 3830] close(11) = -1 EBADF (Bad file descriptor) [pid 3830] close(12) = -1 EBADF (Bad file descriptor) [pid 3830] close(13) = -1 EBADF (Bad file descriptor) [pid 3830] close(14) = -1 EBADF (Bad file descriptor) [pid 3830] close(15) = -1 EBADF (Bad file descriptor) [pid 3830] close(16) = -1 EBADF (Bad file descriptor) [pid 3830] close(17) = -1 EBADF (Bad file descriptor) [pid 3830] close(18) = -1 EBADF (Bad file descriptor) [pid 3830] close(19) = -1 EBADF (Bad file descriptor) [pid 3830] close(20) = -1 EBADF (Bad file descriptor) [pid 3830] close(21) = -1 EBADF (Bad file descriptor) [pid 3830] close(22) = -1 EBADF (Bad file descriptor) [pid 3830] close(23) = -1 EBADF (Bad file descriptor) [pid 3830] close(24) = -1 EBADF (Bad file descriptor) [pid 3830] close(25) = -1 EBADF (Bad file descriptor) [pid 3830] close(26) = -1 EBADF (Bad file descriptor) [pid 3830] close(27) = -1 EBADF (Bad file descriptor) [pid 3830] close(28) = -1 EBADF (Bad file descriptor) [pid 3830] close(29) = -1 EBADF (Bad file descriptor) [pid 3830] exit_group(0) = ? [pid 3830] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=228, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./226", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./226", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./226/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./226/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./226/binderfs") = 0 [pid 3603] umount2("./226/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./226/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./226/cgroup") = 0 [pid 3603] umount2("./226/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./226/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./226/cgroup.net") = 0 [pid 3603] umount2("./226/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./226/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./226/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./226") = 0 [pid 3603] mkdir("./227", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 229 ./strace-static-x86_64: Process 3831 attached [pid 3831] chdir("./227") = 0 [pid 3831] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3831] setpgid(0, 0) = 0 [pid 3831] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3831] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3831] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3831] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3831] write(3, "1000", 4) = 4 [pid 3831] close(3) = 0 [pid 3831] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3831] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3831] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3831] gettid() = 229 [pid 3831] process_vm_writev(229, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3831] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3831] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3831] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3831] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3831] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3831] close(3) = 0 [pid 3831] close(4) = 0 [pid 3831] close(5) = -1 EBADF (Bad file descriptor) [pid 3831] close(6) = -1 EBADF (Bad file descriptor) [pid 3831] close(7) = -1 EBADF (Bad file descriptor) [pid 3831] close(8) = -1 EBADF (Bad file descriptor) [pid 3831] close(9) = -1 EBADF (Bad file descriptor) [pid 3831] close(10) = -1 EBADF (Bad file descriptor) [pid 3831] close(11) = -1 EBADF (Bad file descriptor) [pid 3831] close(12) = -1 EBADF (Bad file descriptor) [pid 3831] close(13) = -1 EBADF (Bad file descriptor) [pid 3831] close(14) = -1 EBADF (Bad file descriptor) [pid 3831] close(15) = -1 EBADF (Bad file descriptor) [pid 3831] close(16) = -1 EBADF (Bad file descriptor) [pid 3831] close(17) = -1 EBADF (Bad file descriptor) [pid 3831] close(18) = -1 EBADF (Bad file descriptor) [pid 3831] close(19) = -1 EBADF (Bad file descriptor) [pid 3831] close(20) = -1 EBADF (Bad file descriptor) [pid 3831] close(21) = -1 EBADF (Bad file descriptor) [pid 3831] close(22) = -1 EBADF (Bad file descriptor) [pid 3831] close(23) = -1 EBADF (Bad file descriptor) [pid 3831] close(24) = -1 EBADF (Bad file descriptor) [pid 3831] close(25) = -1 EBADF (Bad file descriptor) [pid 3831] close(26) = -1 EBADF (Bad file descriptor) [pid 3831] close(27) = -1 EBADF (Bad file descriptor) [pid 3831] close(28) = -1 EBADF (Bad file descriptor) [pid 3831] close(29) = -1 EBADF (Bad file descriptor) [pid 3831] exit_group(0) = ? [pid 3831] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=229, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./227", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./227", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./227/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./227/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./227/binderfs") = 0 [pid 3603] umount2("./227/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./227/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./227/cgroup") = 0 [pid 3603] umount2("./227/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./227/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./227/cgroup.net") = 0 [pid 3603] umount2("./227/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./227/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./227/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./227") = 0 [pid 3603] mkdir("./228", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3832 attached [pid 3832] chdir("./228") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 230 [pid 3832] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3832] setpgid(0, 0) = 0 [pid 3832] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3832] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3832] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3832] write(3, "1000", 4) = 4 [pid 3832] close(3) = 0 [pid 3832] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3832] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3832] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3832] gettid() = 230 [pid 3832] process_vm_writev(230, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3832] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3832] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3832] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3832] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3832] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3832] close(3) = 0 [pid 3832] close(4) = 0 [pid 3832] close(5) = -1 EBADF (Bad file descriptor) [pid 3832] close(6) = -1 EBADF (Bad file descriptor) [pid 3832] close(7) = -1 EBADF (Bad file descriptor) [pid 3832] close(8) = -1 EBADF (Bad file descriptor) [pid 3832] close(9) = -1 EBADF (Bad file descriptor) [pid 3832] close(10) = -1 EBADF (Bad file descriptor) [pid 3832] close(11) = -1 EBADF (Bad file descriptor) [pid 3832] close(12) = -1 EBADF (Bad file descriptor) [pid 3832] close(13) = -1 EBADF (Bad file descriptor) [pid 3832] close(14) = -1 EBADF (Bad file descriptor) [pid 3832] close(15) = -1 EBADF (Bad file descriptor) [pid 3832] close(16) = -1 EBADF (Bad file descriptor) [pid 3832] close(17) = -1 EBADF (Bad file descriptor) [pid 3832] close(18) = -1 EBADF (Bad file descriptor) [pid 3832] close(19) = -1 EBADF (Bad file descriptor) [pid 3832] close(20) = -1 EBADF (Bad file descriptor) [pid 3832] close(21) = -1 EBADF (Bad file descriptor) [pid 3832] close(22) = -1 EBADF (Bad file descriptor) [pid 3832] close(23) = -1 EBADF (Bad file descriptor) [pid 3832] close(24) = -1 EBADF (Bad file descriptor) [pid 3832] close(25) = -1 EBADF (Bad file descriptor) [pid 3832] close(26) = -1 EBADF (Bad file descriptor) [pid 3832] close(27) = -1 EBADF (Bad file descriptor) [pid 3832] close(28) = -1 EBADF (Bad file descriptor) [pid 3832] close(29) = -1 EBADF (Bad file descriptor) [pid 3832] exit_group(0) = ? [pid 3832] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=230, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./228", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./228", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./228/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./228/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./228/binderfs") = 0 [pid 3603] umount2("./228/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./228/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./228/cgroup") = 0 [pid 3603] umount2("./228/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./228/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./228/cgroup.net") = 0 [pid 3603] umount2("./228/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./228/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./228/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./228") = 0 [pid 3603] mkdir("./229", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3833 attached , child_tidptr=0x5555567b05d0) = 231 [pid 3833] chdir("./229") = 0 [pid 3833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3833] setpgid(0, 0) = 0 [pid 3833] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3833] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3833] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3833] write(3, "1000", 4) = 4 [pid 3833] close(3) = 0 [pid 3833] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3833] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3833] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3833] gettid() = 231 [pid 3833] process_vm_writev(231, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3833] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3833] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3833] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3833] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3833] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3833] close(3) = 0 [pid 3833] close(4) = 0 [pid 3833] close(5) = -1 EBADF (Bad file descriptor) [pid 3833] close(6) = -1 EBADF (Bad file descriptor) [pid 3833] close(7) = -1 EBADF (Bad file descriptor) [pid 3833] close(8) = -1 EBADF (Bad file descriptor) [pid 3833] close(9) = -1 EBADF (Bad file descriptor) [pid 3833] close(10) = -1 EBADF (Bad file descriptor) [pid 3833] close(11) = -1 EBADF (Bad file descriptor) [pid 3833] close(12) = -1 EBADF (Bad file descriptor) [pid 3833] close(13) = -1 EBADF (Bad file descriptor) [pid 3833] close(14) = -1 EBADF (Bad file descriptor) [pid 3833] close(15) = -1 EBADF (Bad file descriptor) [pid 3833] close(16) = -1 EBADF (Bad file descriptor) [pid 3833] close(17) = -1 EBADF (Bad file descriptor) [pid 3833] close(18) = -1 EBADF (Bad file descriptor) [pid 3833] close(19) = -1 EBADF (Bad file descriptor) [pid 3833] close(20) = -1 EBADF (Bad file descriptor) [pid 3833] close(21) = -1 EBADF (Bad file descriptor) [pid 3833] close(22) = -1 EBADF (Bad file descriptor) [pid 3833] close(23) = -1 EBADF (Bad file descriptor) [pid 3833] close(24) = -1 EBADF (Bad file descriptor) [pid 3833] close(25) = -1 EBADF (Bad file descriptor) [pid 3833] close(26) = -1 EBADF (Bad file descriptor) [pid 3833] close(27) = -1 EBADF (Bad file descriptor) [pid 3833] close(28) = -1 EBADF (Bad file descriptor) [pid 3833] close(29) = -1 EBADF (Bad file descriptor) [pid 3833] exit_group(0) = ? [pid 3833] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=231, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 3603] umount2("./229", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./229", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./229/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./229/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./229/binderfs") = 0 [pid 3603] umount2("./229/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./229/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./229/cgroup") = 0 [pid 3603] umount2("./229/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./229/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./229/cgroup.net") = 0 [pid 3603] umount2("./229/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./229/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./229/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./229") = 0 [pid 3603] mkdir("./230", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 232 ./strace-static-x86_64: Process 3834 attached [pid 3834] chdir("./230") = 0 [pid 3834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3834] setpgid(0, 0) = 0 [pid 3834] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3834] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3834] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3834] write(3, "1000", 4) = 4 [pid 3834] close(3) = 0 [pid 3834] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3834] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3834] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3834] gettid() = 232 [pid 3834] process_vm_writev(232, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3834] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3834] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3834] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3834] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3834] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3834] close(3) = 0 [pid 3834] close(4) = 0 [pid 3834] close(5) = -1 EBADF (Bad file descriptor) [pid 3834] close(6) = -1 EBADF (Bad file descriptor) [pid 3834] close(7) = -1 EBADF (Bad file descriptor) [pid 3834] close(8) = -1 EBADF (Bad file descriptor) [pid 3834] close(9) = -1 EBADF (Bad file descriptor) [pid 3834] close(10) = -1 EBADF (Bad file descriptor) [pid 3834] close(11) = -1 EBADF (Bad file descriptor) [pid 3834] close(12) = -1 EBADF (Bad file descriptor) [pid 3834] close(13) = -1 EBADF (Bad file descriptor) [pid 3834] close(14) = -1 EBADF (Bad file descriptor) [pid 3834] close(15) = -1 EBADF (Bad file descriptor) [pid 3834] close(16) = -1 EBADF (Bad file descriptor) [pid 3834] close(17) = -1 EBADF (Bad file descriptor) [pid 3834] close(18) = -1 EBADF (Bad file descriptor) [pid 3834] close(19) = -1 EBADF (Bad file descriptor) [pid 3834] close(20) = -1 EBADF (Bad file descriptor) [pid 3834] close(21) = -1 EBADF (Bad file descriptor) [pid 3834] close(22) = -1 EBADF (Bad file descriptor) [pid 3834] close(23) = -1 EBADF (Bad file descriptor) [pid 3834] close(24) = -1 EBADF (Bad file descriptor) [pid 3834] close(25) = -1 EBADF (Bad file descriptor) [pid 3834] close(26) = -1 EBADF (Bad file descriptor) [pid 3834] close(27) = -1 EBADF (Bad file descriptor) [pid 3834] close(28) = -1 EBADF (Bad file descriptor) [pid 3834] close(29) = -1 EBADF (Bad file descriptor) [pid 3834] exit_group(0) = ? [pid 3834] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=232, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./230", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./230", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./230/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./230/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./230/binderfs") = 0 [pid 3603] umount2("./230/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./230/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./230/cgroup") = 0 [pid 3603] umount2("./230/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./230/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./230/cgroup.net") = 0 [pid 3603] umount2("./230/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./230/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./230/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./230") = 0 [pid 3603] mkdir("./231", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3835 attached , child_tidptr=0x5555567b05d0) = 233 [pid 3835] chdir("./231") = 0 [pid 3835] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3835] setpgid(0, 0) = 0 [pid 3835] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3835] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3835] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3835] write(3, "1000", 4) = 4 [pid 3835] close(3) = 0 [pid 3835] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3835] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3835] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3835] gettid() = 233 [pid 3835] process_vm_writev(233, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3835] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3835] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3835] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3835] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3835] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3835] close(3) = 0 [pid 3835] close(4) = 0 [pid 3835] close(5) = -1 EBADF (Bad file descriptor) [pid 3835] close(6) = -1 EBADF (Bad file descriptor) [pid 3835] close(7) = -1 EBADF (Bad file descriptor) [pid 3835] close(8) = -1 EBADF (Bad file descriptor) [pid 3835] close(9) = -1 EBADF (Bad file descriptor) [pid 3835] close(10) = -1 EBADF (Bad file descriptor) [pid 3835] close(11) = -1 EBADF (Bad file descriptor) [pid 3835] close(12) = -1 EBADF (Bad file descriptor) [pid 3835] close(13) = -1 EBADF (Bad file descriptor) [pid 3835] close(14) = -1 EBADF (Bad file descriptor) [pid 3835] close(15) = -1 EBADF (Bad file descriptor) [pid 3835] close(16) = -1 EBADF (Bad file descriptor) [pid 3835] close(17) = -1 EBADF (Bad file descriptor) [pid 3835] close(18) = -1 EBADF (Bad file descriptor) [pid 3835] close(19) = -1 EBADF (Bad file descriptor) [pid 3835] close(20) = -1 EBADF (Bad file descriptor) [pid 3835] close(21) = -1 EBADF (Bad file descriptor) [pid 3835] close(22) = -1 EBADF (Bad file descriptor) [pid 3835] close(23) = -1 EBADF (Bad file descriptor) [pid 3835] close(24) = -1 EBADF (Bad file descriptor) [pid 3835] close(25) = -1 EBADF (Bad file descriptor) [pid 3835] close(26) = -1 EBADF (Bad file descriptor) [pid 3835] close(27) = -1 EBADF (Bad file descriptor) [pid 3835] close(28) = -1 EBADF (Bad file descriptor) [pid 3835] close(29) = -1 EBADF (Bad file descriptor) [pid 3835] exit_group(0) = ? [pid 3835] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=233, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./231", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./231", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./231/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./231/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./231/binderfs") = 0 [pid 3603] umount2("./231/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./231/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./231/cgroup") = 0 [pid 3603] umount2("./231/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./231/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./231/cgroup.net") = 0 [pid 3603] umount2("./231/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./231/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./231/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./231") = 0 [pid 3603] mkdir("./232", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3836 attached [pid 3836] chdir("./232" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 234 [pid 3836] <... chdir resumed>) = 0 [pid 3836] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3836] setpgid(0, 0) = 0 [pid 3836] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3836] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3836] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3836] write(3, "1000", 4) = 4 [pid 3836] close(3) = 0 [pid 3836] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3836] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3836] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3836] gettid() = 234 [pid 3836] process_vm_writev(234, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3836] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3836] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3836] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3836] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3836] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3836] close(3) = 0 [pid 3836] close(4) = 0 [pid 3836] close(5) = -1 EBADF (Bad file descriptor) [pid 3836] close(6) = -1 EBADF (Bad file descriptor) [pid 3836] close(7) = -1 EBADF (Bad file descriptor) [pid 3836] close(8) = -1 EBADF (Bad file descriptor) [pid 3836] close(9) = -1 EBADF (Bad file descriptor) [pid 3836] close(10) = -1 EBADF (Bad file descriptor) [pid 3836] close(11) = -1 EBADF (Bad file descriptor) [pid 3836] close(12) = -1 EBADF (Bad file descriptor) [pid 3836] close(13) = -1 EBADF (Bad file descriptor) [pid 3836] close(14) = -1 EBADF (Bad file descriptor) [pid 3836] close(15) = -1 EBADF (Bad file descriptor) [pid 3836] close(16) = -1 EBADF (Bad file descriptor) [pid 3836] close(17) = -1 EBADF (Bad file descriptor) [pid 3836] close(18) = -1 EBADF (Bad file descriptor) [pid 3836] close(19) = -1 EBADF (Bad file descriptor) [pid 3836] close(20) = -1 EBADF (Bad file descriptor) [pid 3836] close(21) = -1 EBADF (Bad file descriptor) [pid 3836] close(22) = -1 EBADF (Bad file descriptor) [pid 3836] close(23) = -1 EBADF (Bad file descriptor) [pid 3836] close(24) = -1 EBADF (Bad file descriptor) [pid 3836] close(25) = -1 EBADF (Bad file descriptor) [pid 3836] close(26) = -1 EBADF (Bad file descriptor) [pid 3836] close(27) = -1 EBADF (Bad file descriptor) [pid 3836] close(28) = -1 EBADF (Bad file descriptor) [pid 3836] close(29) = -1 EBADF (Bad file descriptor) [pid 3836] exit_group(0) = ? [pid 3836] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=234, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./232", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./232", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./232/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./232/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./232/binderfs") = 0 [pid 3603] umount2("./232/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./232/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./232/cgroup") = 0 [pid 3603] umount2("./232/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./232/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./232/cgroup.net") = 0 [pid 3603] umount2("./232/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./232/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./232/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./232") = 0 [pid 3603] mkdir("./233", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3837 attached [pid 3837] chdir("./233" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 235 [pid 3837] <... chdir resumed>) = 0 [pid 3837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3837] setpgid(0, 0) = 0 [pid 3837] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3837] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3837] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3837] write(3, "1000", 4) = 4 [pid 3837] close(3) = 0 [pid 3837] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3837] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3837] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3837] gettid() = 235 [pid 3837] process_vm_writev(235, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3837] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3837] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3837] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3837] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3837] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3837] close(3) = 0 [pid 3837] close(4) = 0 [pid 3837] close(5) = -1 EBADF (Bad file descriptor) [pid 3837] close(6) = -1 EBADF (Bad file descriptor) [pid 3837] close(7) = -1 EBADF (Bad file descriptor) [pid 3837] close(8) = -1 EBADF (Bad file descriptor) [pid 3837] close(9) = -1 EBADF (Bad file descriptor) [pid 3837] close(10) = -1 EBADF (Bad file descriptor) [pid 3837] close(11) = -1 EBADF (Bad file descriptor) [pid 3837] close(12) = -1 EBADF (Bad file descriptor) [pid 3837] close(13) = -1 EBADF (Bad file descriptor) [pid 3837] close(14) = -1 EBADF (Bad file descriptor) [pid 3837] close(15) = -1 EBADF (Bad file descriptor) [pid 3837] close(16) = -1 EBADF (Bad file descriptor) [pid 3837] close(17) = -1 EBADF (Bad file descriptor) [pid 3837] close(18) = -1 EBADF (Bad file descriptor) [pid 3837] close(19) = -1 EBADF (Bad file descriptor) [pid 3837] close(20) = -1 EBADF (Bad file descriptor) [pid 3837] close(21) = -1 EBADF (Bad file descriptor) [pid 3837] close(22) = -1 EBADF (Bad file descriptor) [pid 3837] close(23) = -1 EBADF (Bad file descriptor) [pid 3837] close(24) = -1 EBADF (Bad file descriptor) [pid 3837] close(25) = -1 EBADF (Bad file descriptor) [pid 3837] close(26) = -1 EBADF (Bad file descriptor) [pid 3837] close(27) = -1 EBADF (Bad file descriptor) [pid 3837] close(28) = -1 EBADF (Bad file descriptor) [pid 3837] close(29) = -1 EBADF (Bad file descriptor) [pid 3837] exit_group(0) = ? [pid 3837] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=235, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./233", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./233", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./233/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./233/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./233/binderfs") = 0 [pid 3603] umount2("./233/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./233/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./233/cgroup") = 0 [pid 3603] umount2("./233/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./233/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./233/cgroup.net") = 0 [pid 3603] umount2("./233/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./233/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./233/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./233") = 0 [pid 3603] mkdir("./234", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3838 attached [pid 3838] chdir("./234" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 236 [pid 3838] <... chdir resumed>) = 0 [pid 3838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3838] setpgid(0, 0) = 0 [pid 3838] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3838] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3838] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3838] write(3, "1000", 4) = 4 [pid 3838] close(3) = 0 [pid 3838] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3838] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3838] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3838] gettid() = 236 [pid 3838] process_vm_writev(236, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3838] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3838] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3838] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3838] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3838] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3838] close(3) = 0 [pid 3838] close(4) = 0 [pid 3838] close(5) = -1 EBADF (Bad file descriptor) [pid 3838] close(6) = -1 EBADF (Bad file descriptor) [pid 3838] close(7) = -1 EBADF (Bad file descriptor) [pid 3838] close(8) = -1 EBADF (Bad file descriptor) [pid 3838] close(9) = -1 EBADF (Bad file descriptor) [pid 3838] close(10) = -1 EBADF (Bad file descriptor) [pid 3838] close(11) = -1 EBADF (Bad file descriptor) [pid 3838] close(12) = -1 EBADF (Bad file descriptor) [pid 3838] close(13) = -1 EBADF (Bad file descriptor) [pid 3838] close(14) = -1 EBADF (Bad file descriptor) [pid 3838] close(15) = -1 EBADF (Bad file descriptor) [pid 3838] close(16) = -1 EBADF (Bad file descriptor) [pid 3838] close(17) = -1 EBADF (Bad file descriptor) [pid 3838] close(18) = -1 EBADF (Bad file descriptor) [pid 3838] close(19) = -1 EBADF (Bad file descriptor) [pid 3838] close(20) = -1 EBADF (Bad file descriptor) [pid 3838] close(21) = -1 EBADF (Bad file descriptor) [pid 3838] close(22) = -1 EBADF (Bad file descriptor) [pid 3838] close(23) = -1 EBADF (Bad file descriptor) [pid 3838] close(24) = -1 EBADF (Bad file descriptor) [pid 3838] close(25) = -1 EBADF (Bad file descriptor) [pid 3838] close(26) = -1 EBADF (Bad file descriptor) [pid 3838] close(27) = -1 EBADF (Bad file descriptor) [pid 3838] close(28) = -1 EBADF (Bad file descriptor) [pid 3838] close(29) = -1 EBADF (Bad file descriptor) [pid 3838] exit_group(0) = ? [pid 3838] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=236, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./234", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./234", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./234/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./234/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./234/binderfs") = 0 [pid 3603] umount2("./234/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./234/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./234/cgroup") = 0 [pid 3603] umount2("./234/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./234/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./234/cgroup.net") = 0 [pid 3603] umount2("./234/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./234/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./234/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./234") = 0 [pid 3603] mkdir("./235", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3839 attached [pid 3839] chdir("./235" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 237 [pid 3839] <... chdir resumed>) = 0 [pid 3839] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3839] setpgid(0, 0) = 0 [pid 3839] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3839] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3839] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3839] write(3, "1000", 4) = 4 [pid 3839] close(3) = 0 [pid 3839] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3839] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3839] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3839] gettid() = 237 [pid 3839] process_vm_writev(237, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3839] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3839] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3839] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3839] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3839] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3839] close(3) = 0 [pid 3839] close(4) = 0 [pid 3839] close(5) = -1 EBADF (Bad file descriptor) [pid 3839] close(6) = -1 EBADF (Bad file descriptor) [pid 3839] close(7) = -1 EBADF (Bad file descriptor) [pid 3839] close(8) = -1 EBADF (Bad file descriptor) [pid 3839] close(9) = -1 EBADF (Bad file descriptor) [pid 3839] close(10) = -1 EBADF (Bad file descriptor) [pid 3839] close(11) = -1 EBADF (Bad file descriptor) [pid 3839] close(12) = -1 EBADF (Bad file descriptor) [pid 3839] close(13) = -1 EBADF (Bad file descriptor) [pid 3839] close(14) = -1 EBADF (Bad file descriptor) [pid 3839] close(15) = -1 EBADF (Bad file descriptor) [pid 3839] close(16) = -1 EBADF (Bad file descriptor) [pid 3839] close(17) = -1 EBADF (Bad file descriptor) [pid 3839] close(18) = -1 EBADF (Bad file descriptor) [pid 3839] close(19) = -1 EBADF (Bad file descriptor) [pid 3839] close(20) = -1 EBADF (Bad file descriptor) [pid 3839] close(21) = -1 EBADF (Bad file descriptor) [pid 3839] close(22) = -1 EBADF (Bad file descriptor) [pid 3839] close(23) = -1 EBADF (Bad file descriptor) [pid 3839] close(24) = -1 EBADF (Bad file descriptor) [pid 3839] close(25) = -1 EBADF (Bad file descriptor) [pid 3839] close(26) = -1 EBADF (Bad file descriptor) [pid 3839] close(27) = -1 EBADF (Bad file descriptor) [pid 3839] close(28) = -1 EBADF (Bad file descriptor) [pid 3839] close(29) = -1 EBADF (Bad file descriptor) [pid 3839] exit_group(0) = ? [pid 3839] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=237, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./235", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./235", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./235/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./235/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./235/binderfs") = 0 [pid 3603] umount2("./235/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./235/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./235/cgroup") = 0 [pid 3603] umount2("./235/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./235/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./235/cgroup.net") = 0 [pid 3603] umount2("./235/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./235/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./235/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./235") = 0 [pid 3603] mkdir("./236", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3840 attached , child_tidptr=0x5555567b05d0) = 238 [pid 3840] chdir("./236") = 0 [pid 3840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3840] setpgid(0, 0) = 0 [pid 3840] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3840] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3840] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3840] write(3, "1000", 4) = 4 [pid 3840] close(3) = 0 [pid 3840] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3840] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3840] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3840] gettid() = 238 [pid 3840] process_vm_writev(238, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3840] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3840] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3840] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3840] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3840] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3840] close(3) = 0 [pid 3840] close(4) = 0 [pid 3840] close(5) = -1 EBADF (Bad file descriptor) [pid 3840] close(6) = -1 EBADF (Bad file descriptor) [pid 3840] close(7) = -1 EBADF (Bad file descriptor) [pid 3840] close(8) = -1 EBADF (Bad file descriptor) [pid 3840] close(9) = -1 EBADF (Bad file descriptor) [pid 3840] close(10) = -1 EBADF (Bad file descriptor) [pid 3840] close(11) = -1 EBADF (Bad file descriptor) [pid 3840] close(12) = -1 EBADF (Bad file descriptor) [pid 3840] close(13) = -1 EBADF (Bad file descriptor) [pid 3840] close(14) = -1 EBADF (Bad file descriptor) [pid 3840] close(15) = -1 EBADF (Bad file descriptor) [pid 3840] close(16) = -1 EBADF (Bad file descriptor) [pid 3840] close(17) = -1 EBADF (Bad file descriptor) [pid 3840] close(18) = -1 EBADF (Bad file descriptor) [pid 3840] close(19) = -1 EBADF (Bad file descriptor) [pid 3840] close(20) = -1 EBADF (Bad file descriptor) [pid 3840] close(21) = -1 EBADF (Bad file descriptor) [pid 3840] close(22) = -1 EBADF (Bad file descriptor) [pid 3840] close(23) = -1 EBADF (Bad file descriptor) [pid 3840] close(24) = -1 EBADF (Bad file descriptor) [pid 3840] close(25) = -1 EBADF (Bad file descriptor) [pid 3840] close(26) = -1 EBADF (Bad file descriptor) [pid 3840] close(27) = -1 EBADF (Bad file descriptor) [pid 3840] close(28) = -1 EBADF (Bad file descriptor) [pid 3840] close(29) = -1 EBADF (Bad file descriptor) [pid 3840] exit_group(0) = ? [pid 3840] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=238, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./236", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./236", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./236/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./236/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./236/binderfs") = 0 [pid 3603] umount2("./236/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./236/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./236/cgroup") = 0 [pid 3603] umount2("./236/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./236/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./236/cgroup.net") = 0 [pid 3603] umount2("./236/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./236/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./236/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./236") = 0 [pid 3603] mkdir("./237", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3841 attached , child_tidptr=0x5555567b05d0) = 239 [pid 3841] chdir("./237") = 0 [pid 3841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3841] setpgid(0, 0) = 0 [pid 3841] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3841] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3841] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3841] write(3, "1000", 4) = 4 [pid 3841] close(3) = 0 [pid 3841] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3841] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3841] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3841] gettid() = 239 [pid 3841] process_vm_writev(239, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3841] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3841] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3841] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3841] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3841] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3841] close(3) = 0 [pid 3841] close(4) = 0 [pid 3841] close(5) = -1 EBADF (Bad file descriptor) [pid 3841] close(6) = -1 EBADF (Bad file descriptor) [pid 3841] close(7) = -1 EBADF (Bad file descriptor) [pid 3841] close(8) = -1 EBADF (Bad file descriptor) [pid 3841] close(9) = -1 EBADF (Bad file descriptor) [pid 3841] close(10) = -1 EBADF (Bad file descriptor) [pid 3841] close(11) = -1 EBADF (Bad file descriptor) [pid 3841] close(12) = -1 EBADF (Bad file descriptor) [pid 3841] close(13) = -1 EBADF (Bad file descriptor) [pid 3841] close(14) = -1 EBADF (Bad file descriptor) [pid 3841] close(15) = -1 EBADF (Bad file descriptor) [pid 3841] close(16) = -1 EBADF (Bad file descriptor) [pid 3841] close(17) = -1 EBADF (Bad file descriptor) [pid 3841] close(18) = -1 EBADF (Bad file descriptor) [pid 3841] close(19) = -1 EBADF (Bad file descriptor) [pid 3841] close(20) = -1 EBADF (Bad file descriptor) [pid 3841] close(21) = -1 EBADF (Bad file descriptor) [pid 3841] close(22) = -1 EBADF (Bad file descriptor) [pid 3841] close(23) = -1 EBADF (Bad file descriptor) [pid 3841] close(24) = -1 EBADF (Bad file descriptor) [pid 3841] close(25) = -1 EBADF (Bad file descriptor) [pid 3841] close(26) = -1 EBADF (Bad file descriptor) [pid 3841] close(27) = -1 EBADF (Bad file descriptor) [pid 3841] close(28) = -1 EBADF (Bad file descriptor) [pid 3841] close(29) = -1 EBADF (Bad file descriptor) [pid 3841] exit_group(0) = ? [pid 3841] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=239, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./237", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./237", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./237/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./237/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./237/binderfs") = 0 [pid 3603] umount2("./237/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./237/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./237/cgroup") = 0 [pid 3603] umount2("./237/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./237/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./237/cgroup.net") = 0 [pid 3603] umount2("./237/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./237/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./237/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./237") = 0 [pid 3603] mkdir("./238", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3842 attached , child_tidptr=0x5555567b05d0) = 240 [pid 3842] chdir("./238") = 0 [pid 3842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3842] setpgid(0, 0) = 0 [pid 3842] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3842] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3842] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3842] write(3, "1000", 4) = 4 [pid 3842] close(3) = 0 [pid 3842] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3842] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3842] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3842] gettid() = 240 [pid 3842] process_vm_writev(240, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3842] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3842] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3842] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3842] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3842] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3842] close(3) = 0 [pid 3842] close(4) = 0 [pid 3842] close(5) = -1 EBADF (Bad file descriptor) [pid 3842] close(6) = -1 EBADF (Bad file descriptor) [pid 3842] close(7) = -1 EBADF (Bad file descriptor) [pid 3842] close(8) = -1 EBADF (Bad file descriptor) [pid 3842] close(9) = -1 EBADF (Bad file descriptor) [pid 3842] close(10) = -1 EBADF (Bad file descriptor) [pid 3842] close(11) = -1 EBADF (Bad file descriptor) [pid 3842] close(12) = -1 EBADF (Bad file descriptor) [pid 3842] close(13) = -1 EBADF (Bad file descriptor) [pid 3842] close(14) = -1 EBADF (Bad file descriptor) [pid 3842] close(15) = -1 EBADF (Bad file descriptor) [pid 3842] close(16) = -1 EBADF (Bad file descriptor) [pid 3842] close(17) = -1 EBADF (Bad file descriptor) [pid 3842] close(18) = -1 EBADF (Bad file descriptor) [pid 3842] close(19) = -1 EBADF (Bad file descriptor) [pid 3842] close(20) = -1 EBADF (Bad file descriptor) [pid 3842] close(21) = -1 EBADF (Bad file descriptor) [pid 3842] close(22) = -1 EBADF (Bad file descriptor) [pid 3842] close(23) = -1 EBADF (Bad file descriptor) [pid 3842] close(24) = -1 EBADF (Bad file descriptor) [pid 3842] close(25) = -1 EBADF (Bad file descriptor) [pid 3842] close(26) = -1 EBADF (Bad file descriptor) [pid 3842] close(27) = -1 EBADF (Bad file descriptor) [pid 3842] close(28) = -1 EBADF (Bad file descriptor) [pid 3842] close(29) = -1 EBADF (Bad file descriptor) [pid 3842] exit_group(0) = ? [pid 3842] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=240, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./238", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./238", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./238/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./238/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./238/binderfs") = 0 [pid 3603] umount2("./238/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./238/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./238/cgroup") = 0 [pid 3603] umount2("./238/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./238/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./238/cgroup.net") = 0 [pid 3603] umount2("./238/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./238/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./238/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./238") = 0 [pid 3603] mkdir("./239", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3843 attached [pid 3843] chdir("./239") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 241 [pid 3843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3843] setpgid(0, 0) = 0 [pid 3843] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3843] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3843] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3843] write(3, "1000", 4) = 4 [pid 3843] close(3) = 0 [pid 3843] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3843] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3843] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3843] gettid() = 241 [pid 3843] process_vm_writev(241, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3843] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3843] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3843] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3843] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3843] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3843] close(3) = 0 [pid 3843] close(4) = 0 [pid 3843] close(5) = -1 EBADF (Bad file descriptor) [pid 3843] close(6) = -1 EBADF (Bad file descriptor) [pid 3843] close(7) = -1 EBADF (Bad file descriptor) [pid 3843] close(8) = -1 EBADF (Bad file descriptor) [pid 3843] close(9) = -1 EBADF (Bad file descriptor) [pid 3843] close(10) = -1 EBADF (Bad file descriptor) [pid 3843] close(11) = -1 EBADF (Bad file descriptor) [pid 3843] close(12) = -1 EBADF (Bad file descriptor) [pid 3843] close(13) = -1 EBADF (Bad file descriptor) [pid 3843] close(14) = -1 EBADF (Bad file descriptor) [pid 3843] close(15) = -1 EBADF (Bad file descriptor) [pid 3843] close(16) = -1 EBADF (Bad file descriptor) [pid 3843] close(17) = -1 EBADF (Bad file descriptor) [pid 3843] close(18) = -1 EBADF (Bad file descriptor) [pid 3843] close(19) = -1 EBADF (Bad file descriptor) [pid 3843] close(20) = -1 EBADF (Bad file descriptor) [pid 3843] close(21) = -1 EBADF (Bad file descriptor) [pid 3843] close(22) = -1 EBADF (Bad file descriptor) [pid 3843] close(23) = -1 EBADF (Bad file descriptor) [pid 3843] close(24) = -1 EBADF (Bad file descriptor) [pid 3843] close(25) = -1 EBADF (Bad file descriptor) [pid 3843] close(26) = -1 EBADF (Bad file descriptor) [pid 3843] close(27) = -1 EBADF (Bad file descriptor) [pid 3843] close(28) = -1 EBADF (Bad file descriptor) [pid 3843] close(29) = -1 EBADF (Bad file descriptor) [pid 3843] exit_group(0) = ? [pid 3843] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=241, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./239", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./239", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./239/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./239/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./239/binderfs") = 0 [pid 3603] umount2("./239/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./239/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./239/cgroup") = 0 [pid 3603] umount2("./239/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./239/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./239/cgroup.net") = 0 [pid 3603] umount2("./239/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./239/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./239/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./239") = 0 [pid 3603] mkdir("./240", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3844 attached , child_tidptr=0x5555567b05d0) = 242 [pid 3844] chdir("./240") = 0 [pid 3844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3844] setpgid(0, 0) = 0 [pid 3844] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3844] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3844] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3844] write(3, "1000", 4) = 4 [pid 3844] close(3) = 0 [pid 3844] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3844] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3844] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3844] gettid() = 242 [pid 3844] process_vm_writev(242, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3844] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3844] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3844] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3844] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3844] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3844] close(3) = 0 [pid 3844] close(4) = 0 [pid 3844] close(5) = -1 EBADF (Bad file descriptor) [pid 3844] close(6) = -1 EBADF (Bad file descriptor) [pid 3844] close(7) = -1 EBADF (Bad file descriptor) [pid 3844] close(8) = -1 EBADF (Bad file descriptor) [pid 3844] close(9) = -1 EBADF (Bad file descriptor) [pid 3844] close(10) = -1 EBADF (Bad file descriptor) [pid 3844] close(11) = -1 EBADF (Bad file descriptor) [pid 3844] close(12) = -1 EBADF (Bad file descriptor) [pid 3844] close(13) = -1 EBADF (Bad file descriptor) [pid 3844] close(14) = -1 EBADF (Bad file descriptor) [pid 3844] close(15) = -1 EBADF (Bad file descriptor) [pid 3844] close(16) = -1 EBADF (Bad file descriptor) [pid 3844] close(17) = -1 EBADF (Bad file descriptor) [pid 3844] close(18) = -1 EBADF (Bad file descriptor) [pid 3844] close(19) = -1 EBADF (Bad file descriptor) [pid 3844] close(20) = -1 EBADF (Bad file descriptor) [pid 3844] close(21) = -1 EBADF (Bad file descriptor) [pid 3844] close(22) = -1 EBADF (Bad file descriptor) [pid 3844] close(23) = -1 EBADF (Bad file descriptor) [pid 3844] close(24) = -1 EBADF (Bad file descriptor) [pid 3844] close(25) = -1 EBADF (Bad file descriptor) [pid 3844] close(26) = -1 EBADF (Bad file descriptor) [pid 3844] close(27) = -1 EBADF (Bad file descriptor) [pid 3844] close(28) = -1 EBADF (Bad file descriptor) [pid 3844] close(29) = -1 EBADF (Bad file descriptor) [pid 3844] exit_group(0) = ? [pid 3844] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=242, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./240", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./240", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./240/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./240/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./240/binderfs") = 0 [pid 3603] umount2("./240/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./240/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./240/cgroup") = 0 [pid 3603] umount2("./240/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./240/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./240/cgroup.net") = 0 [pid 3603] umount2("./240/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./240/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./240/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./240") = 0 [pid 3603] mkdir("./241", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3845 attached [pid 3845] chdir("./241") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 243 [pid 3845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3845] setpgid(0, 0) = 0 [pid 3845] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3845] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3845] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3845] write(3, "1000", 4) = 4 [pid 3845] close(3) = 0 [pid 3845] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3845] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3845] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3845] gettid() = 243 [pid 3845] process_vm_writev(243, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3845] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3845] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3845] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3845] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3845] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3845] close(3) = 0 [pid 3845] close(4) = 0 [pid 3845] close(5) = -1 EBADF (Bad file descriptor) [pid 3845] close(6) = -1 EBADF (Bad file descriptor) [pid 3845] close(7) = -1 EBADF (Bad file descriptor) [pid 3845] close(8) = -1 EBADF (Bad file descriptor) [pid 3845] close(9) = -1 EBADF (Bad file descriptor) [pid 3845] close(10) = -1 EBADF (Bad file descriptor) [pid 3845] close(11) = -1 EBADF (Bad file descriptor) [pid 3845] close(12) = -1 EBADF (Bad file descriptor) [pid 3845] close(13) = -1 EBADF (Bad file descriptor) [pid 3845] close(14) = -1 EBADF (Bad file descriptor) [pid 3845] close(15) = -1 EBADF (Bad file descriptor) [pid 3845] close(16) = -1 EBADF (Bad file descriptor) [pid 3845] close(17) = -1 EBADF (Bad file descriptor) [pid 3845] close(18) = -1 EBADF (Bad file descriptor) [pid 3845] close(19) = -1 EBADF (Bad file descriptor) [pid 3845] close(20) = -1 EBADF (Bad file descriptor) [pid 3845] close(21) = -1 EBADF (Bad file descriptor) [pid 3845] close(22) = -1 EBADF (Bad file descriptor) [pid 3845] close(23) = -1 EBADF (Bad file descriptor) [pid 3845] close(24) = -1 EBADF (Bad file descriptor) [pid 3845] close(25) = -1 EBADF (Bad file descriptor) [pid 3845] close(26) = -1 EBADF (Bad file descriptor) [pid 3845] close(27) = -1 EBADF (Bad file descriptor) [pid 3845] close(28) = -1 EBADF (Bad file descriptor) [pid 3845] close(29) = -1 EBADF (Bad file descriptor) [pid 3845] exit_group(0) = ? [pid 3845] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=243, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./241", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./241", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./241/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./241/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./241/binderfs") = 0 [pid 3603] umount2("./241/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./241/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./241/cgroup") = 0 [pid 3603] umount2("./241/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./241/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./241/cgroup.net") = 0 [pid 3603] umount2("./241/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./241/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./241/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./241") = 0 [pid 3603] mkdir("./242", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3846 attached , child_tidptr=0x5555567b05d0) = 244 [pid 3846] chdir("./242") = 0 [pid 3846] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3846] setpgid(0, 0) = 0 [pid 3846] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3846] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3846] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3846] write(3, "1000", 4) = 4 [pid 3846] close(3) = 0 [pid 3846] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3846] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3846] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3846] gettid() = 244 [pid 3846] process_vm_writev(244, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3846] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3846] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3846] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3846] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3846] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3846] close(3) = 0 [pid 3846] close(4) = 0 [pid 3846] close(5) = -1 EBADF (Bad file descriptor) [pid 3846] close(6) = -1 EBADF (Bad file descriptor) [pid 3846] close(7) = -1 EBADF (Bad file descriptor) [pid 3846] close(8) = -1 EBADF (Bad file descriptor) [pid 3846] close(9) = -1 EBADF (Bad file descriptor) [pid 3846] close(10) = -1 EBADF (Bad file descriptor) [pid 3846] close(11) = -1 EBADF (Bad file descriptor) [pid 3846] close(12) = -1 EBADF (Bad file descriptor) [pid 3846] close(13) = -1 EBADF (Bad file descriptor) [pid 3846] close(14) = -1 EBADF (Bad file descriptor) [pid 3846] close(15) = -1 EBADF (Bad file descriptor) [pid 3846] close(16) = -1 EBADF (Bad file descriptor) [pid 3846] close(17) = -1 EBADF (Bad file descriptor) [pid 3846] close(18) = -1 EBADF (Bad file descriptor) [pid 3846] close(19) = -1 EBADF (Bad file descriptor) [pid 3846] close(20) = -1 EBADF (Bad file descriptor) [pid 3846] close(21) = -1 EBADF (Bad file descriptor) [pid 3846] close(22) = -1 EBADF (Bad file descriptor) [pid 3846] close(23) = -1 EBADF (Bad file descriptor) [pid 3846] close(24) = -1 EBADF (Bad file descriptor) [pid 3846] close(25) = -1 EBADF (Bad file descriptor) [pid 3846] close(26) = -1 EBADF (Bad file descriptor) [pid 3846] close(27) = -1 EBADF (Bad file descriptor) [pid 3846] close(28) = -1 EBADF (Bad file descriptor) [pid 3846] close(29) = -1 EBADF (Bad file descriptor) [pid 3846] exit_group(0) = ? [pid 3846] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=244, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./242", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./242", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./242/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./242/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./242/binderfs") = 0 [pid 3603] umount2("./242/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./242/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./242/cgroup") = 0 [pid 3603] umount2("./242/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./242/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./242/cgroup.net") = 0 [pid 3603] umount2("./242/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./242/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./242/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./242") = 0 [pid 3603] mkdir("./243", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3847 attached , child_tidptr=0x5555567b05d0) = 245 [pid 3847] chdir("./243") = 0 [pid 3847] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3847] setpgid(0, 0) = 0 [pid 3847] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3847] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3847] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3847] write(3, "1000", 4) = 4 [pid 3847] close(3) = 0 [pid 3847] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3847] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3847] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3847] gettid() = 245 [pid 3847] process_vm_writev(245, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3847] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3847] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3847] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3847] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3847] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3847] close(3) = 0 [pid 3847] close(4) = 0 [pid 3847] close(5) = -1 EBADF (Bad file descriptor) [pid 3847] close(6) = -1 EBADF (Bad file descriptor) [pid 3847] close(7) = -1 EBADF (Bad file descriptor) [pid 3847] close(8) = -1 EBADF (Bad file descriptor) [pid 3847] close(9) = -1 EBADF (Bad file descriptor) [pid 3847] close(10) = -1 EBADF (Bad file descriptor) [pid 3847] close(11) = -1 EBADF (Bad file descriptor) [pid 3847] close(12) = -1 EBADF (Bad file descriptor) [pid 3847] close(13) = -1 EBADF (Bad file descriptor) [pid 3847] close(14) = -1 EBADF (Bad file descriptor) [pid 3847] close(15) = -1 EBADF (Bad file descriptor) [pid 3847] close(16) = -1 EBADF (Bad file descriptor) [pid 3847] close(17) = -1 EBADF (Bad file descriptor) [pid 3847] close(18) = -1 EBADF (Bad file descriptor) [pid 3847] close(19) = -1 EBADF (Bad file descriptor) [pid 3847] close(20) = -1 EBADF (Bad file descriptor) [pid 3847] close(21) = -1 EBADF (Bad file descriptor) [pid 3847] close(22) = -1 EBADF (Bad file descriptor) [pid 3847] close(23) = -1 EBADF (Bad file descriptor) [pid 3847] close(24) = -1 EBADF (Bad file descriptor) [pid 3847] close(25) = -1 EBADF (Bad file descriptor) [pid 3847] close(26) = -1 EBADF (Bad file descriptor) [pid 3847] close(27) = -1 EBADF (Bad file descriptor) [pid 3847] close(28) = -1 EBADF (Bad file descriptor) [pid 3847] close(29) = -1 EBADF (Bad file descriptor) [pid 3847] exit_group(0) = ? [pid 3847] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=245, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./243", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./243", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./243/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./243/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./243/binderfs") = 0 [pid 3603] umount2("./243/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./243/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./243/cgroup") = 0 [pid 3603] umount2("./243/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./243/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./243/cgroup.net") = 0 [pid 3603] umount2("./243/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./243/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./243/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./243") = 0 [pid 3603] mkdir("./244", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3848 attached , child_tidptr=0x5555567b05d0) = 246 [pid 3848] chdir("./244") = 0 [pid 3848] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3848] setpgid(0, 0) = 0 [pid 3848] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3848] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3848] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3848] write(3, "1000", 4) = 4 [pid 3848] close(3) = 0 [pid 3848] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3848] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3848] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3848] gettid() = 246 [pid 3848] process_vm_writev(246, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3848] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3848] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3848] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3848] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3848] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3848] close(3) = 0 [pid 3848] close(4) = 0 [pid 3848] close(5) = -1 EBADF (Bad file descriptor) [pid 3848] close(6) = -1 EBADF (Bad file descriptor) [pid 3848] close(7) = -1 EBADF (Bad file descriptor) [pid 3848] close(8) = -1 EBADF (Bad file descriptor) [pid 3848] close(9) = -1 EBADF (Bad file descriptor) [pid 3848] close(10) = -1 EBADF (Bad file descriptor) [pid 3848] close(11) = -1 EBADF (Bad file descriptor) [pid 3848] close(12) = -1 EBADF (Bad file descriptor) [pid 3848] close(13) = -1 EBADF (Bad file descriptor) [pid 3848] close(14) = -1 EBADF (Bad file descriptor) [pid 3848] close(15) = -1 EBADF (Bad file descriptor) [pid 3848] close(16) = -1 EBADF (Bad file descriptor) [pid 3848] close(17) = -1 EBADF (Bad file descriptor) [pid 3848] close(18) = -1 EBADF (Bad file descriptor) [pid 3848] close(19) = -1 EBADF (Bad file descriptor) [pid 3848] close(20) = -1 EBADF (Bad file descriptor) [pid 3848] close(21) = -1 EBADF (Bad file descriptor) [pid 3848] close(22) = -1 EBADF (Bad file descriptor) [pid 3848] close(23) = -1 EBADF (Bad file descriptor) [pid 3848] close(24) = -1 EBADF (Bad file descriptor) [pid 3848] close(25) = -1 EBADF (Bad file descriptor) [pid 3848] close(26) = -1 EBADF (Bad file descriptor) [pid 3848] close(27) = -1 EBADF (Bad file descriptor) [pid 3848] close(28) = -1 EBADF (Bad file descriptor) [pid 3848] close(29) = -1 EBADF (Bad file descriptor) [pid 3848] exit_group(0) = ? [pid 3848] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=246, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./244", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./244", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./244/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./244/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./244/binderfs") = 0 [pid 3603] umount2("./244/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./244/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./244/cgroup") = 0 [pid 3603] umount2("./244/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./244/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./244/cgroup.net") = 0 [pid 3603] umount2("./244/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./244/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./244/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./244") = 0 [pid 3603] mkdir("./245", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3849 attached , child_tidptr=0x5555567b05d0) = 247 [pid 3849] chdir("./245") = 0 [pid 3849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3849] setpgid(0, 0) = 0 [pid 3849] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3849] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3849] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3849] write(3, "1000", 4) = 4 [pid 3849] close(3) = 0 [pid 3849] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3849] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3849] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3849] gettid() = 247 [pid 3849] process_vm_writev(247, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3849] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3849] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3849] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3849] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3849] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3849] close(3) = 0 [pid 3849] close(4) = 0 [pid 3849] close(5) = -1 EBADF (Bad file descriptor) [pid 3849] close(6) = -1 EBADF (Bad file descriptor) [pid 3849] close(7) = -1 EBADF (Bad file descriptor) [pid 3849] close(8) = -1 EBADF (Bad file descriptor) [pid 3849] close(9) = -1 EBADF (Bad file descriptor) [pid 3849] close(10) = -1 EBADF (Bad file descriptor) [pid 3849] close(11) = -1 EBADF (Bad file descriptor) [pid 3849] close(12) = -1 EBADF (Bad file descriptor) [pid 3849] close(13) = -1 EBADF (Bad file descriptor) [pid 3849] close(14) = -1 EBADF (Bad file descriptor) [pid 3849] close(15) = -1 EBADF (Bad file descriptor) [pid 3849] close(16) = -1 EBADF (Bad file descriptor) [pid 3849] close(17) = -1 EBADF (Bad file descriptor) [pid 3849] close(18) = -1 EBADF (Bad file descriptor) [pid 3849] close(19) = -1 EBADF (Bad file descriptor) [pid 3849] close(20) = -1 EBADF (Bad file descriptor) [pid 3849] close(21) = -1 EBADF (Bad file descriptor) [pid 3849] close(22) = -1 EBADF (Bad file descriptor) [pid 3849] close(23) = -1 EBADF (Bad file descriptor) [pid 3849] close(24) = -1 EBADF (Bad file descriptor) [pid 3849] close(25) = -1 EBADF (Bad file descriptor) [pid 3849] close(26) = -1 EBADF (Bad file descriptor) [pid 3849] close(27) = -1 EBADF (Bad file descriptor) [pid 3849] close(28) = -1 EBADF (Bad file descriptor) [pid 3849] close(29) = -1 EBADF (Bad file descriptor) [pid 3849] exit_group(0) = ? [pid 3849] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=247, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./245", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./245", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./245/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./245/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./245/binderfs") = 0 [pid 3603] umount2("./245/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./245/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./245/cgroup") = 0 [pid 3603] umount2("./245/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./245/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./245/cgroup.net") = 0 [pid 3603] umount2("./245/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./245/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./245/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./245") = 0 [pid 3603] mkdir("./246", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 248 ./strace-static-x86_64: Process 3850 attached [pid 3850] chdir("./246") = 0 [pid 3850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3850] setpgid(0, 0) = 0 [pid 3850] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3850] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3850] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3850] write(3, "1000", 4) = 4 [pid 3850] close(3) = 0 [pid 3850] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3850] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3850] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3850] gettid() = 248 [pid 3850] process_vm_writev(248, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3850] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3850] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3850] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3850] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3850] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3850] close(3) = 0 [pid 3850] close(4) = 0 [pid 3850] close(5) = -1 EBADF (Bad file descriptor) [pid 3850] close(6) = -1 EBADF (Bad file descriptor) [pid 3850] close(7) = -1 EBADF (Bad file descriptor) [pid 3850] close(8) = -1 EBADF (Bad file descriptor) [pid 3850] close(9) = -1 EBADF (Bad file descriptor) [pid 3850] close(10) = -1 EBADF (Bad file descriptor) [pid 3850] close(11) = -1 EBADF (Bad file descriptor) [pid 3850] close(12) = -1 EBADF (Bad file descriptor) [pid 3850] close(13) = -1 EBADF (Bad file descriptor) [pid 3850] close(14) = -1 EBADF (Bad file descriptor) [pid 3850] close(15) = -1 EBADF (Bad file descriptor) [pid 3850] close(16) = -1 EBADF (Bad file descriptor) [pid 3850] close(17) = -1 EBADF (Bad file descriptor) [pid 3850] close(18) = -1 EBADF (Bad file descriptor) [pid 3850] close(19) = -1 EBADF (Bad file descriptor) [pid 3850] close(20) = -1 EBADF (Bad file descriptor) [pid 3850] close(21) = -1 EBADF (Bad file descriptor) [pid 3850] close(22) = -1 EBADF (Bad file descriptor) [pid 3850] close(23) = -1 EBADF (Bad file descriptor) [pid 3850] close(24) = -1 EBADF (Bad file descriptor) [pid 3850] close(25) = -1 EBADF (Bad file descriptor) [pid 3850] close(26) = -1 EBADF (Bad file descriptor) [pid 3850] close(27) = -1 EBADF (Bad file descriptor) [pid 3850] close(28) = -1 EBADF (Bad file descriptor) [pid 3850] close(29) = -1 EBADF (Bad file descriptor) [pid 3850] exit_group(0) = ? [pid 3850] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=248, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./246", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./246", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./246/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./246/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./246/binderfs") = 0 [pid 3603] umount2("./246/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./246/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./246/cgroup") = 0 [pid 3603] umount2("./246/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./246/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./246/cgroup.net") = 0 [pid 3603] umount2("./246/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./246/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./246/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./246") = 0 [pid 3603] mkdir("./247", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3851 attached [pid 3851] chdir("./247") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 249 [pid 3851] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3851] setpgid(0, 0) = 0 [pid 3851] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3851] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3851] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3851] write(3, "1000", 4) = 4 [pid 3851] close(3) = 0 [pid 3851] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3851] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3851] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3851] gettid() = 249 [pid 3851] process_vm_writev(249, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3851] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3851] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3851] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3851] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3851] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3851] close(3) = 0 [pid 3851] close(4) = 0 [pid 3851] close(5) = -1 EBADF (Bad file descriptor) [pid 3851] close(6) = -1 EBADF (Bad file descriptor) [pid 3851] close(7) = -1 EBADF (Bad file descriptor) [pid 3851] close(8) = -1 EBADF (Bad file descriptor) [pid 3851] close(9) = -1 EBADF (Bad file descriptor) [pid 3851] close(10) = -1 EBADF (Bad file descriptor) [pid 3851] close(11) = -1 EBADF (Bad file descriptor) [pid 3851] close(12) = -1 EBADF (Bad file descriptor) [pid 3851] close(13) = -1 EBADF (Bad file descriptor) [pid 3851] close(14) = -1 EBADF (Bad file descriptor) [pid 3851] close(15) = -1 EBADF (Bad file descriptor) [pid 3851] close(16) = -1 EBADF (Bad file descriptor) [pid 3851] close(17) = -1 EBADF (Bad file descriptor) [pid 3851] close(18) = -1 EBADF (Bad file descriptor) [pid 3851] close(19) = -1 EBADF (Bad file descriptor) [pid 3851] close(20) = -1 EBADF (Bad file descriptor) [pid 3851] close(21) = -1 EBADF (Bad file descriptor) [pid 3851] close(22) = -1 EBADF (Bad file descriptor) [pid 3851] close(23) = -1 EBADF (Bad file descriptor) [pid 3851] close(24) = -1 EBADF (Bad file descriptor) [pid 3851] close(25) = -1 EBADF (Bad file descriptor) [pid 3851] close(26) = -1 EBADF (Bad file descriptor) [pid 3851] close(27) = -1 EBADF (Bad file descriptor) [pid 3851] close(28) = -1 EBADF (Bad file descriptor) [pid 3851] close(29) = -1 EBADF (Bad file descriptor) [pid 3851] exit_group(0) = ? [pid 3851] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=249, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./247", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./247", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./247/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./247/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./247/binderfs") = 0 [pid 3603] umount2("./247/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./247/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./247/cgroup") = 0 [pid 3603] umount2("./247/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./247/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./247/cgroup.net") = 0 [pid 3603] umount2("./247/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./247/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./247/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./247") = 0 [pid 3603] mkdir("./248", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3852 attached , child_tidptr=0x5555567b05d0) = 250 [pid 3852] chdir("./248") = 0 [pid 3852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3852] setpgid(0, 0) = 0 [pid 3852] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3852] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3852] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3852] write(3, "1000", 4) = 4 [pid 3852] close(3) = 0 [pid 3852] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3852] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3852] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3852] gettid() = 250 [pid 3852] process_vm_writev(250, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3852] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3852] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3852] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3852] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3852] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3852] close(3) = 0 [pid 3852] close(4) = 0 [pid 3852] close(5) = -1 EBADF (Bad file descriptor) [pid 3852] close(6) = -1 EBADF (Bad file descriptor) [pid 3852] close(7) = -1 EBADF (Bad file descriptor) [pid 3852] close(8) = -1 EBADF (Bad file descriptor) [pid 3852] close(9) = -1 EBADF (Bad file descriptor) [pid 3852] close(10) = -1 EBADF (Bad file descriptor) [pid 3852] close(11) = -1 EBADF (Bad file descriptor) [pid 3852] close(12) = -1 EBADF (Bad file descriptor) [pid 3852] close(13) = -1 EBADF (Bad file descriptor) [pid 3852] close(14) = -1 EBADF (Bad file descriptor) [pid 3852] close(15) = -1 EBADF (Bad file descriptor) [pid 3852] close(16) = -1 EBADF (Bad file descriptor) [pid 3852] close(17) = -1 EBADF (Bad file descriptor) [pid 3852] close(18) = -1 EBADF (Bad file descriptor) [pid 3852] close(19) = -1 EBADF (Bad file descriptor) [pid 3852] close(20) = -1 EBADF (Bad file descriptor) [pid 3852] close(21) = -1 EBADF (Bad file descriptor) [pid 3852] close(22) = -1 EBADF (Bad file descriptor) [pid 3852] close(23) = -1 EBADF (Bad file descriptor) [pid 3852] close(24) = -1 EBADF (Bad file descriptor) [pid 3852] close(25) = -1 EBADF (Bad file descriptor) [pid 3852] close(26) = -1 EBADF (Bad file descriptor) [pid 3852] close(27) = -1 EBADF (Bad file descriptor) [pid 3852] close(28) = -1 EBADF (Bad file descriptor) [pid 3852] close(29) = -1 EBADF (Bad file descriptor) [pid 3852] exit_group(0) = ? [pid 3852] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=250, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./248", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./248", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./248/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./248/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./248/binderfs") = 0 [pid 3603] umount2("./248/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./248/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./248/cgroup") = 0 [pid 3603] umount2("./248/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./248/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./248/cgroup.net") = 0 [pid 3603] umount2("./248/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./248/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./248/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./248") = 0 [pid 3603] mkdir("./249", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 251 ./strace-static-x86_64: Process 3853 attached [pid 3853] chdir("./249") = 0 [pid 3853] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3853] setpgid(0, 0) = 0 [pid 3853] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3853] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3853] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3853] write(3, "1000", 4) = 4 [pid 3853] close(3) = 0 [pid 3853] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3853] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3853] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3853] gettid() = 251 [pid 3853] process_vm_writev(251, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3853] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3853] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3853] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3853] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3853] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3853] close(3) = 0 [pid 3853] close(4) = 0 [pid 3853] close(5) = -1 EBADF (Bad file descriptor) [pid 3853] close(6) = -1 EBADF (Bad file descriptor) [pid 3853] close(7) = -1 EBADF (Bad file descriptor) [pid 3853] close(8) = -1 EBADF (Bad file descriptor) [pid 3853] close(9) = -1 EBADF (Bad file descriptor) [pid 3853] close(10) = -1 EBADF (Bad file descriptor) [pid 3853] close(11) = -1 EBADF (Bad file descriptor) [pid 3853] close(12) = -1 EBADF (Bad file descriptor) [pid 3853] close(13) = -1 EBADF (Bad file descriptor) [pid 3853] close(14) = -1 EBADF (Bad file descriptor) [pid 3853] close(15) = -1 EBADF (Bad file descriptor) [pid 3853] close(16) = -1 EBADF (Bad file descriptor) [pid 3853] close(17) = -1 EBADF (Bad file descriptor) [pid 3853] close(18) = -1 EBADF (Bad file descriptor) [pid 3853] close(19) = -1 EBADF (Bad file descriptor) [pid 3853] close(20) = -1 EBADF (Bad file descriptor) [pid 3853] close(21) = -1 EBADF (Bad file descriptor) [pid 3853] close(22) = -1 EBADF (Bad file descriptor) [pid 3853] close(23) = -1 EBADF (Bad file descriptor) [pid 3853] close(24) = -1 EBADF (Bad file descriptor) [pid 3853] close(25) = -1 EBADF (Bad file descriptor) [pid 3853] close(26) = -1 EBADF (Bad file descriptor) [pid 3853] close(27) = -1 EBADF (Bad file descriptor) [pid 3853] close(28) = -1 EBADF (Bad file descriptor) [pid 3853] close(29) = -1 EBADF (Bad file descriptor) [pid 3853] exit_group(0) = ? [pid 3853] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=251, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./249", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./249", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./249/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./249/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./249/binderfs") = 0 [pid 3603] umount2("./249/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./249/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./249/cgroup") = 0 [pid 3603] umount2("./249/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./249/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./249/cgroup.net") = 0 [pid 3603] umount2("./249/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./249/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./249/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./249") = 0 [pid 3603] mkdir("./250", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3854 attached , child_tidptr=0x5555567b05d0) = 252 [pid 3854] chdir("./250") = 0 [pid 3854] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3854] setpgid(0, 0) = 0 [pid 3854] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3854] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3854] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3854] write(3, "1000", 4) = 4 [pid 3854] close(3) = 0 [pid 3854] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3854] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3854] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3854] gettid() = 252 [pid 3854] process_vm_writev(252, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3854] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3854] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3854] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3854] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3854] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3854] close(3) = 0 [pid 3854] close(4) = 0 [pid 3854] close(5) = -1 EBADF (Bad file descriptor) [pid 3854] close(6) = -1 EBADF (Bad file descriptor) [pid 3854] close(7) = -1 EBADF (Bad file descriptor) [pid 3854] close(8) = -1 EBADF (Bad file descriptor) [pid 3854] close(9) = -1 EBADF (Bad file descriptor) [pid 3854] close(10) = -1 EBADF (Bad file descriptor) [pid 3854] close(11) = -1 EBADF (Bad file descriptor) [pid 3854] close(12) = -1 EBADF (Bad file descriptor) [pid 3854] close(13) = -1 EBADF (Bad file descriptor) [pid 3854] close(14) = -1 EBADF (Bad file descriptor) [pid 3854] close(15) = -1 EBADF (Bad file descriptor) [pid 3854] close(16) = -1 EBADF (Bad file descriptor) [pid 3854] close(17) = -1 EBADF (Bad file descriptor) [pid 3854] close(18) = -1 EBADF (Bad file descriptor) [pid 3854] close(19) = -1 EBADF (Bad file descriptor) [pid 3854] close(20) = -1 EBADF (Bad file descriptor) [pid 3854] close(21) = -1 EBADF (Bad file descriptor) [pid 3854] close(22) = -1 EBADF (Bad file descriptor) [pid 3854] close(23) = -1 EBADF (Bad file descriptor) [pid 3854] close(24) = -1 EBADF (Bad file descriptor) [pid 3854] close(25) = -1 EBADF (Bad file descriptor) [pid 3854] close(26) = -1 EBADF (Bad file descriptor) [pid 3854] close(27) = -1 EBADF (Bad file descriptor) [pid 3854] close(28) = -1 EBADF (Bad file descriptor) [pid 3854] close(29) = -1 EBADF (Bad file descriptor) [pid 3854] exit_group(0) = ? [pid 3854] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=252, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./250", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./250", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./250/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./250/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./250/binderfs") = 0 [pid 3603] umount2("./250/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./250/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./250/cgroup") = 0 [pid 3603] umount2("./250/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./250/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./250/cgroup.net") = 0 [pid 3603] umount2("./250/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./250/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./250/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./250") = 0 [pid 3603] mkdir("./251", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3855 attached [pid 3855] chdir("./251" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 253 [pid 3855] <... chdir resumed>) = 0 [pid 3855] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3855] setpgid(0, 0) = 0 [pid 3855] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3855] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3855] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3855] write(3, "1000", 4) = 4 [pid 3855] close(3) = 0 [pid 3855] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3855] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3855] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3855] gettid() = 253 [pid 3855] process_vm_writev(253, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3855] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3855] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3855] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3855] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3855] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3855] close(3) = 0 [pid 3855] close(4) = 0 [pid 3855] close(5) = -1 EBADF (Bad file descriptor) [pid 3855] close(6) = -1 EBADF (Bad file descriptor) [pid 3855] close(7) = -1 EBADF (Bad file descriptor) [pid 3855] close(8) = -1 EBADF (Bad file descriptor) [pid 3855] close(9) = -1 EBADF (Bad file descriptor) [pid 3855] close(10) = -1 EBADF (Bad file descriptor) [pid 3855] close(11) = -1 EBADF (Bad file descriptor) [pid 3855] close(12) = -1 EBADF (Bad file descriptor) [pid 3855] close(13) = -1 EBADF (Bad file descriptor) [pid 3855] close(14) = -1 EBADF (Bad file descriptor) [pid 3855] close(15) = -1 EBADF (Bad file descriptor) [pid 3855] close(16) = -1 EBADF (Bad file descriptor) [pid 3855] close(17) = -1 EBADF (Bad file descriptor) [pid 3855] close(18) = -1 EBADF (Bad file descriptor) [pid 3855] close(19) = -1 EBADF (Bad file descriptor) [pid 3855] close(20) = -1 EBADF (Bad file descriptor) [pid 3855] close(21) = -1 EBADF (Bad file descriptor) [pid 3855] close(22) = -1 EBADF (Bad file descriptor) [pid 3855] close(23) = -1 EBADF (Bad file descriptor) [pid 3855] close(24) = -1 EBADF (Bad file descriptor) [pid 3855] close(25) = -1 EBADF (Bad file descriptor) [pid 3855] close(26) = -1 EBADF (Bad file descriptor) [pid 3855] close(27) = -1 EBADF (Bad file descriptor) [pid 3855] close(28) = -1 EBADF (Bad file descriptor) [pid 3855] close(29) = -1 EBADF (Bad file descriptor) [pid 3855] exit_group(0) = ? [pid 3855] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=253, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./251", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./251", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./251/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./251/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./251/binderfs") = 0 [pid 3603] umount2("./251/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./251/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./251/cgroup") = 0 [pid 3603] umount2("./251/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./251/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./251/cgroup.net") = 0 [pid 3603] umount2("./251/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./251/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./251/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./251") = 0 [pid 3603] mkdir("./252", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3856 attached , child_tidptr=0x5555567b05d0) = 254 [pid 3856] chdir("./252") = 0 [pid 3856] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3856] setpgid(0, 0) = 0 [pid 3856] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3856] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3856] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3856] write(3, "1000", 4) = 4 [pid 3856] close(3) = 0 [pid 3856] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3856] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3856] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3856] gettid() = 254 [pid 3856] process_vm_writev(254, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3856] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3856] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3856] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3856] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3856] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3856] close(3) = 0 [pid 3856] close(4) = 0 [pid 3856] close(5) = -1 EBADF (Bad file descriptor) [pid 3856] close(6) = -1 EBADF (Bad file descriptor) [pid 3856] close(7) = -1 EBADF (Bad file descriptor) [pid 3856] close(8) = -1 EBADF (Bad file descriptor) [pid 3856] close(9) = -1 EBADF (Bad file descriptor) [pid 3856] close(10) = -1 EBADF (Bad file descriptor) [pid 3856] close(11) = -1 EBADF (Bad file descriptor) [pid 3856] close(12) = -1 EBADF (Bad file descriptor) [pid 3856] close(13) = -1 EBADF (Bad file descriptor) [pid 3856] close(14) = -1 EBADF (Bad file descriptor) [pid 3856] close(15) = -1 EBADF (Bad file descriptor) [pid 3856] close(16) = -1 EBADF (Bad file descriptor) [pid 3856] close(17) = -1 EBADF (Bad file descriptor) [pid 3856] close(18) = -1 EBADF (Bad file descriptor) [pid 3856] close(19) = -1 EBADF (Bad file descriptor) [pid 3856] close(20) = -1 EBADF (Bad file descriptor) [pid 3856] close(21) = -1 EBADF (Bad file descriptor) [pid 3856] close(22) = -1 EBADF (Bad file descriptor) [pid 3856] close(23) = -1 EBADF (Bad file descriptor) [pid 3856] close(24) = -1 EBADF (Bad file descriptor) [pid 3856] close(25) = -1 EBADF (Bad file descriptor) [pid 3856] close(26) = -1 EBADF (Bad file descriptor) [pid 3856] close(27) = -1 EBADF (Bad file descriptor) [pid 3856] close(28) = -1 EBADF (Bad file descriptor) [pid 3856] close(29) = -1 EBADF (Bad file descriptor) [pid 3856] exit_group(0) = ? [pid 3856] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=254, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./252", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./252", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./252/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./252/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./252/binderfs") = 0 [pid 3603] umount2("./252/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./252/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./252/cgroup") = 0 [pid 3603] umount2("./252/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./252/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./252/cgroup.net") = 0 [pid 3603] umount2("./252/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./252/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./252/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./252") = 0 [pid 3603] mkdir("./253", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3857 attached , child_tidptr=0x5555567b05d0) = 255 [pid 3857] chdir("./253") = 0 [pid 3857] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3857] setpgid(0, 0) = 0 [pid 3857] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3857] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3857] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3857] write(3, "1000", 4) = 4 [pid 3857] close(3) = 0 [pid 3857] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3857] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3857] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3857] gettid() = 255 [pid 3857] process_vm_writev(255, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3857] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3857] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3857] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3857] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3857] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3857] close(3) = 0 [pid 3857] close(4) = 0 [pid 3857] close(5) = -1 EBADF (Bad file descriptor) [pid 3857] close(6) = -1 EBADF (Bad file descriptor) [pid 3857] close(7) = -1 EBADF (Bad file descriptor) [pid 3857] close(8) = -1 EBADF (Bad file descriptor) [pid 3857] close(9) = -1 EBADF (Bad file descriptor) [pid 3857] close(10) = -1 EBADF (Bad file descriptor) [pid 3857] close(11) = -1 EBADF (Bad file descriptor) [pid 3857] close(12) = -1 EBADF (Bad file descriptor) [pid 3857] close(13) = -1 EBADF (Bad file descriptor) [pid 3857] close(14) = -1 EBADF (Bad file descriptor) [pid 3857] close(15) = -1 EBADF (Bad file descriptor) [pid 3857] close(16) = -1 EBADF (Bad file descriptor) [pid 3857] close(17) = -1 EBADF (Bad file descriptor) [pid 3857] close(18) = -1 EBADF (Bad file descriptor) [pid 3857] close(19) = -1 EBADF (Bad file descriptor) [pid 3857] close(20) = -1 EBADF (Bad file descriptor) [pid 3857] close(21) = -1 EBADF (Bad file descriptor) [pid 3857] close(22) = -1 EBADF (Bad file descriptor) [pid 3857] close(23) = -1 EBADF (Bad file descriptor) [pid 3857] close(24) = -1 EBADF (Bad file descriptor) [pid 3857] close(25) = -1 EBADF (Bad file descriptor) [pid 3857] close(26) = -1 EBADF (Bad file descriptor) [pid 3857] close(27) = -1 EBADF (Bad file descriptor) [pid 3857] close(28) = -1 EBADF (Bad file descriptor) [pid 3857] close(29) = -1 EBADF (Bad file descriptor) [pid 3857] exit_group(0) = ? [pid 3857] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=255, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./253", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./253", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./253/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./253/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./253/binderfs") = 0 [pid 3603] umount2("./253/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./253/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./253/cgroup") = 0 [pid 3603] umount2("./253/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./253/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./253/cgroup.net") = 0 [pid 3603] umount2("./253/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./253/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./253/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./253") = 0 [pid 3603] mkdir("./254", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3858 attached [pid 3858] chdir("./254" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 256 [pid 3858] <... chdir resumed>) = 0 [pid 3858] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3858] setpgid(0, 0) = 0 [pid 3858] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3858] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3858] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3858] write(3, "1000", 4) = 4 [pid 3858] close(3) = 0 [pid 3858] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3858] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3858] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3858] gettid() = 256 [pid 3858] process_vm_writev(256, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3858] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3858] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3858] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3858] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3858] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3858] close(3) = 0 [pid 3858] close(4) = 0 [pid 3858] close(5) = -1 EBADF (Bad file descriptor) [pid 3858] close(6) = -1 EBADF (Bad file descriptor) [pid 3858] close(7) = -1 EBADF (Bad file descriptor) [pid 3858] close(8) = -1 EBADF (Bad file descriptor) [pid 3858] close(9) = -1 EBADF (Bad file descriptor) [pid 3858] close(10) = -1 EBADF (Bad file descriptor) [pid 3858] close(11) = -1 EBADF (Bad file descriptor) [pid 3858] close(12) = -1 EBADF (Bad file descriptor) [pid 3858] close(13) = -1 EBADF (Bad file descriptor) [pid 3858] close(14) = -1 EBADF (Bad file descriptor) [pid 3858] close(15) = -1 EBADF (Bad file descriptor) [pid 3858] close(16) = -1 EBADF (Bad file descriptor) [pid 3858] close(17) = -1 EBADF (Bad file descriptor) [pid 3858] close(18) = -1 EBADF (Bad file descriptor) [pid 3858] close(19) = -1 EBADF (Bad file descriptor) [pid 3858] close(20) = -1 EBADF (Bad file descriptor) [pid 3858] close(21) = -1 EBADF (Bad file descriptor) [pid 3858] close(22) = -1 EBADF (Bad file descriptor) [pid 3858] close(23) = -1 EBADF (Bad file descriptor) [pid 3858] close(24) = -1 EBADF (Bad file descriptor) [pid 3858] close(25) = -1 EBADF (Bad file descriptor) [pid 3858] close(26) = -1 EBADF (Bad file descriptor) [pid 3858] close(27) = -1 EBADF (Bad file descriptor) [pid 3858] close(28) = -1 EBADF (Bad file descriptor) [pid 3858] close(29) = -1 EBADF (Bad file descriptor) [pid 3858] exit_group(0) = ? [pid 3858] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=256, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./254", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./254", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./254/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./254/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./254/binderfs") = 0 [pid 3603] umount2("./254/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./254/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./254/cgroup") = 0 [pid 3603] umount2("./254/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./254/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./254/cgroup.net") = 0 [pid 3603] umount2("./254/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./254/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./254/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./254") = 0 [pid 3603] mkdir("./255", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 257 ./strace-static-x86_64: Process 3859 attached [pid 3859] chdir("./255") = 0 [pid 3859] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3859] setpgid(0, 0) = 0 [pid 3859] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3859] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3859] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3859] write(3, "1000", 4) = 4 [pid 3859] close(3) = 0 [pid 3859] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3859] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3859] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3859] gettid() = 257 [pid 3859] process_vm_writev(257, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3859] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3859] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3859] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3859] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3859] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3859] close(3) = 0 [pid 3859] close(4) = 0 [pid 3859] close(5) = -1 EBADF (Bad file descriptor) [pid 3859] close(6) = -1 EBADF (Bad file descriptor) [pid 3859] close(7) = -1 EBADF (Bad file descriptor) [pid 3859] close(8) = -1 EBADF (Bad file descriptor) [pid 3859] close(9) = -1 EBADF (Bad file descriptor) [pid 3859] close(10) = -1 EBADF (Bad file descriptor) [pid 3859] close(11) = -1 EBADF (Bad file descriptor) [pid 3859] close(12) = -1 EBADF (Bad file descriptor) [pid 3859] close(13) = -1 EBADF (Bad file descriptor) [pid 3859] close(14) = -1 EBADF (Bad file descriptor) [pid 3859] close(15) = -1 EBADF (Bad file descriptor) [pid 3859] close(16) = -1 EBADF (Bad file descriptor) [pid 3859] close(17) = -1 EBADF (Bad file descriptor) [pid 3859] close(18) = -1 EBADF (Bad file descriptor) [pid 3859] close(19) = -1 EBADF (Bad file descriptor) [pid 3859] close(20) = -1 EBADF (Bad file descriptor) [pid 3859] close(21) = -1 EBADF (Bad file descriptor) [pid 3859] close(22) = -1 EBADF (Bad file descriptor) [pid 3859] close(23) = -1 EBADF (Bad file descriptor) [pid 3859] close(24) = -1 EBADF (Bad file descriptor) [pid 3859] close(25) = -1 EBADF (Bad file descriptor) [pid 3859] close(26) = -1 EBADF (Bad file descriptor) [pid 3859] close(27) = -1 EBADF (Bad file descriptor) [pid 3859] close(28) = -1 EBADF (Bad file descriptor) [pid 3859] close(29) = -1 EBADF (Bad file descriptor) [pid 3859] exit_group(0) = ? [pid 3859] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=257, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./255", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./255", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./255/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./255/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./255/binderfs") = 0 [pid 3603] umount2("./255/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./255/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./255/cgroup") = 0 [pid 3603] umount2("./255/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./255/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./255/cgroup.net") = 0 [pid 3603] umount2("./255/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./255/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./255/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./255") = 0 [pid 3603] mkdir("./256", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 258 ./strace-static-x86_64: Process 3860 attached [pid 3860] chdir("./256") = 0 [pid 3860] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3860] setpgid(0, 0) = 0 [pid 3860] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3860] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3860] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3860] write(3, "1000", 4) = 4 [pid 3860] close(3) = 0 [pid 3860] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3860] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3860] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3860] gettid() = 258 [pid 3860] process_vm_writev(258, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3860] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3860] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3860] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3860] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3860] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3860] close(3) = 0 [pid 3860] close(4) = 0 [pid 3860] close(5) = -1 EBADF (Bad file descriptor) [pid 3860] close(6) = -1 EBADF (Bad file descriptor) [pid 3860] close(7) = -1 EBADF (Bad file descriptor) [pid 3860] close(8) = -1 EBADF (Bad file descriptor) [pid 3860] close(9) = -1 EBADF (Bad file descriptor) [pid 3860] close(10) = -1 EBADF (Bad file descriptor) [pid 3860] close(11) = -1 EBADF (Bad file descriptor) [pid 3860] close(12) = -1 EBADF (Bad file descriptor) [pid 3860] close(13) = -1 EBADF (Bad file descriptor) [pid 3860] close(14) = -1 EBADF (Bad file descriptor) [pid 3860] close(15) = -1 EBADF (Bad file descriptor) [pid 3860] close(16) = -1 EBADF (Bad file descriptor) [pid 3860] close(17) = -1 EBADF (Bad file descriptor) [pid 3860] close(18) = -1 EBADF (Bad file descriptor) [pid 3860] close(19) = -1 EBADF (Bad file descriptor) [pid 3860] close(20) = -1 EBADF (Bad file descriptor) [pid 3860] close(21) = -1 EBADF (Bad file descriptor) [pid 3860] close(22) = -1 EBADF (Bad file descriptor) [pid 3860] close(23) = -1 EBADF (Bad file descriptor) [pid 3860] close(24) = -1 EBADF (Bad file descriptor) [pid 3860] close(25) = -1 EBADF (Bad file descriptor) [pid 3860] close(26) = -1 EBADF (Bad file descriptor) [pid 3860] close(27) = -1 EBADF (Bad file descriptor) [pid 3860] close(28) = -1 EBADF (Bad file descriptor) [pid 3860] close(29) = -1 EBADF (Bad file descriptor) [pid 3860] exit_group(0) = ? [pid 3860] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=258, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./256", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./256", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./256/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./256/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./256/binderfs") = 0 [pid 3603] umount2("./256/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./256/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./256/cgroup") = 0 [pid 3603] umount2("./256/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./256/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./256/cgroup.net") = 0 [pid 3603] umount2("./256/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./256/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./256/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./256") = 0 [pid 3603] mkdir("./257", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3861 attached , child_tidptr=0x5555567b05d0) = 259 [pid 3861] chdir("./257") = 0 [pid 3861] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3861] setpgid(0, 0) = 0 [pid 3861] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3861] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3861] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3861] write(3, "1000", 4) = 4 [pid 3861] close(3) = 0 [pid 3861] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3861] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3861] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3861] gettid() = 259 [pid 3861] process_vm_writev(259, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3861] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3861] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3861] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3861] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3861] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3861] close(3) = 0 [pid 3861] close(4) = 0 [pid 3861] close(5) = -1 EBADF (Bad file descriptor) [pid 3861] close(6) = -1 EBADF (Bad file descriptor) [pid 3861] close(7) = -1 EBADF (Bad file descriptor) [pid 3861] close(8) = -1 EBADF (Bad file descriptor) [pid 3861] close(9) = -1 EBADF (Bad file descriptor) [pid 3861] close(10) = -1 EBADF (Bad file descriptor) [pid 3861] close(11) = -1 EBADF (Bad file descriptor) [pid 3861] close(12) = -1 EBADF (Bad file descriptor) [pid 3861] close(13) = -1 EBADF (Bad file descriptor) [pid 3861] close(14) = -1 EBADF (Bad file descriptor) [pid 3861] close(15) = -1 EBADF (Bad file descriptor) [pid 3861] close(16) = -1 EBADF (Bad file descriptor) [pid 3861] close(17) = -1 EBADF (Bad file descriptor) [pid 3861] close(18) = -1 EBADF (Bad file descriptor) [pid 3861] close(19) = -1 EBADF (Bad file descriptor) [pid 3861] close(20) = -1 EBADF (Bad file descriptor) [pid 3861] close(21) = -1 EBADF (Bad file descriptor) [pid 3861] close(22) = -1 EBADF (Bad file descriptor) [pid 3861] close(23) = -1 EBADF (Bad file descriptor) [pid 3861] close(24) = -1 EBADF (Bad file descriptor) [pid 3861] close(25) = -1 EBADF (Bad file descriptor) [pid 3861] close(26) = -1 EBADF (Bad file descriptor) [pid 3861] close(27) = -1 EBADF (Bad file descriptor) [pid 3861] close(28) = -1 EBADF (Bad file descriptor) [pid 3861] close(29) = -1 EBADF (Bad file descriptor) [pid 3861] exit_group(0) = ? [pid 3861] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=259, si_uid=0, si_status=0, si_utime=1, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./257", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./257", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./257/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./257/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./257/binderfs") = 0 [pid 3603] umount2("./257/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./257/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./257/cgroup") = 0 [pid 3603] umount2("./257/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./257/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./257/cgroup.net") = 0 [pid 3603] umount2("./257/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./257/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./257/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./257") = 0 [pid 3603] mkdir("./258", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 260 ./strace-static-x86_64: Process 3862 attached [pid 3862] chdir("./258") = 0 [pid 3862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3862] setpgid(0, 0) = 0 [pid 3862] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3862] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3862] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3862] write(3, "1000", 4) = 4 [pid 3862] close(3) = 0 [pid 3862] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3862] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3862] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3862] gettid() = 260 [pid 3862] process_vm_writev(260, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3862] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3862] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3862] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3862] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3862] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3862] close(3) = 0 [pid 3862] close(4) = 0 [pid 3862] close(5) = -1 EBADF (Bad file descriptor) [pid 3862] close(6) = -1 EBADF (Bad file descriptor) [pid 3862] close(7) = -1 EBADF (Bad file descriptor) [pid 3862] close(8) = -1 EBADF (Bad file descriptor) [pid 3862] close(9) = -1 EBADF (Bad file descriptor) [pid 3862] close(10) = -1 EBADF (Bad file descriptor) [pid 3862] close(11) = -1 EBADF (Bad file descriptor) [pid 3862] close(12) = -1 EBADF (Bad file descriptor) [pid 3862] close(13) = -1 EBADF (Bad file descriptor) [pid 3862] close(14) = -1 EBADF (Bad file descriptor) [pid 3862] close(15) = -1 EBADF (Bad file descriptor) [pid 3862] close(16) = -1 EBADF (Bad file descriptor) [pid 3862] close(17) = -1 EBADF (Bad file descriptor) [pid 3862] close(18) = -1 EBADF (Bad file descriptor) [pid 3862] close(19) = -1 EBADF (Bad file descriptor) [pid 3862] close(20) = -1 EBADF (Bad file descriptor) [pid 3862] close(21) = -1 EBADF (Bad file descriptor) [pid 3862] close(22) = -1 EBADF (Bad file descriptor) [pid 3862] close(23) = -1 EBADF (Bad file descriptor) [pid 3862] close(24) = -1 EBADF (Bad file descriptor) [pid 3862] close(25) = -1 EBADF (Bad file descriptor) [pid 3862] close(26) = -1 EBADF (Bad file descriptor) [pid 3862] close(27) = -1 EBADF (Bad file descriptor) [pid 3862] close(28) = -1 EBADF (Bad file descriptor) [pid 3862] close(29) = -1 EBADF (Bad file descriptor) [pid 3862] exit_group(0) = ? [pid 3862] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=260, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./258", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./258", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./258/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./258/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./258/binderfs") = 0 [pid 3603] umount2("./258/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./258/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./258/cgroup") = 0 [pid 3603] umount2("./258/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./258/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./258/cgroup.net") = 0 [pid 3603] umount2("./258/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./258/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./258/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./258") = 0 [pid 3603] mkdir("./259", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3863 attached , child_tidptr=0x5555567b05d0) = 261 [pid 3863] chdir("./259") = 0 [pid 3863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3863] setpgid(0, 0) = 0 [pid 3863] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3863] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3863] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3863] write(3, "1000", 4) = 4 [pid 3863] close(3) = 0 [pid 3863] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3863] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3863] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3863] gettid() = 261 [pid 3863] process_vm_writev(261, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3863] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3863] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3863] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3863] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3863] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3863] close(3) = 0 [pid 3863] close(4) = 0 [pid 3863] close(5) = -1 EBADF (Bad file descriptor) [pid 3863] close(6) = -1 EBADF (Bad file descriptor) [pid 3863] close(7) = -1 EBADF (Bad file descriptor) [pid 3863] close(8) = -1 EBADF (Bad file descriptor) [pid 3863] close(9) = -1 EBADF (Bad file descriptor) [pid 3863] close(10) = -1 EBADF (Bad file descriptor) [pid 3863] close(11) = -1 EBADF (Bad file descriptor) [pid 3863] close(12) = -1 EBADF (Bad file descriptor) [pid 3863] close(13) = -1 EBADF (Bad file descriptor) [pid 3863] close(14) = -1 EBADF (Bad file descriptor) [pid 3863] close(15) = -1 EBADF (Bad file descriptor) [pid 3863] close(16) = -1 EBADF (Bad file descriptor) [pid 3863] close(17) = -1 EBADF (Bad file descriptor) [pid 3863] close(18) = -1 EBADF (Bad file descriptor) [pid 3863] close(19) = -1 EBADF (Bad file descriptor) [pid 3863] close(20) = -1 EBADF (Bad file descriptor) [pid 3863] close(21) = -1 EBADF (Bad file descriptor) [pid 3863] close(22) = -1 EBADF (Bad file descriptor) [pid 3863] close(23) = -1 EBADF (Bad file descriptor) [pid 3863] close(24) = -1 EBADF (Bad file descriptor) [pid 3863] close(25) = -1 EBADF (Bad file descriptor) [pid 3863] close(26) = -1 EBADF (Bad file descriptor) [pid 3863] close(27) = -1 EBADF (Bad file descriptor) [pid 3863] close(28) = -1 EBADF (Bad file descriptor) [pid 3863] close(29) = -1 EBADF (Bad file descriptor) [pid 3863] exit_group(0) = ? [pid 3863] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=261, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./259", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./259", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./259/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./259/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./259/binderfs") = 0 [pid 3603] umount2("./259/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./259/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./259/cgroup") = 0 [pid 3603] umount2("./259/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./259/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./259/cgroup.net") = 0 [pid 3603] umount2("./259/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./259/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./259/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./259") = 0 [pid 3603] mkdir("./260", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 262 ./strace-static-x86_64: Process 3864 attached [pid 3864] chdir("./260") = 0 [pid 3864] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3864] setpgid(0, 0) = 0 [pid 3864] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3864] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3864] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3864] write(3, "1000", 4) = 4 [pid 3864] close(3) = 0 [pid 3864] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3864] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3864] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3864] gettid() = 262 [pid 3864] process_vm_writev(262, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3864] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3864] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3864] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3864] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3864] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3864] close(3) = 0 [pid 3864] close(4) = 0 [pid 3864] close(5) = -1 EBADF (Bad file descriptor) [pid 3864] close(6) = -1 EBADF (Bad file descriptor) [pid 3864] close(7) = -1 EBADF (Bad file descriptor) [pid 3864] close(8) = -1 EBADF (Bad file descriptor) [pid 3864] close(9) = -1 EBADF (Bad file descriptor) [pid 3864] close(10) = -1 EBADF (Bad file descriptor) [pid 3864] close(11) = -1 EBADF (Bad file descriptor) [pid 3864] close(12) = -1 EBADF (Bad file descriptor) [pid 3864] close(13) = -1 EBADF (Bad file descriptor) [pid 3864] close(14) = -1 EBADF (Bad file descriptor) [pid 3864] close(15) = -1 EBADF (Bad file descriptor) [pid 3864] close(16) = -1 EBADF (Bad file descriptor) [pid 3864] close(17) = -1 EBADF (Bad file descriptor) [pid 3864] close(18) = -1 EBADF (Bad file descriptor) [pid 3864] close(19) = -1 EBADF (Bad file descriptor) [pid 3864] close(20) = -1 EBADF (Bad file descriptor) [pid 3864] close(21) = -1 EBADF (Bad file descriptor) [pid 3864] close(22) = -1 EBADF (Bad file descriptor) [pid 3864] close(23) = -1 EBADF (Bad file descriptor) [pid 3864] close(24) = -1 EBADF (Bad file descriptor) [pid 3864] close(25) = -1 EBADF (Bad file descriptor) [pid 3864] close(26) = -1 EBADF (Bad file descriptor) [pid 3864] close(27) = -1 EBADF (Bad file descriptor) [pid 3864] close(28) = -1 EBADF (Bad file descriptor) [pid 3864] close(29) = -1 EBADF (Bad file descriptor) [pid 3864] exit_group(0) = ? [pid 3864] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=262, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./260", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./260", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./260/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./260/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./260/binderfs") = 0 [pid 3603] umount2("./260/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./260/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./260/cgroup") = 0 [pid 3603] umount2("./260/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./260/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./260/cgroup.net") = 0 [pid 3603] umount2("./260/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./260/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./260/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./260") = 0 [pid 3603] mkdir("./261", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3865 attached , child_tidptr=0x5555567b05d0) = 263 [pid 3865] chdir("./261") = 0 [pid 3865] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3865] setpgid(0, 0) = 0 [pid 3865] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3865] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3865] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3865] write(3, "1000", 4) = 4 [pid 3865] close(3) = 0 [pid 3865] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3865] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3865] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3865] gettid() = 263 [pid 3865] process_vm_writev(263, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3865] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3865] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3865] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3865] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3865] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3865] close(3) = 0 [pid 3865] close(4) = 0 [pid 3865] close(5) = -1 EBADF (Bad file descriptor) [pid 3865] close(6) = -1 EBADF (Bad file descriptor) [pid 3865] close(7) = -1 EBADF (Bad file descriptor) [pid 3865] close(8) = -1 EBADF (Bad file descriptor) [pid 3865] close(9) = -1 EBADF (Bad file descriptor) [pid 3865] close(10) = -1 EBADF (Bad file descriptor) [pid 3865] close(11) = -1 EBADF (Bad file descriptor) [pid 3865] close(12) = -1 EBADF (Bad file descriptor) [pid 3865] close(13) = -1 EBADF (Bad file descriptor) [pid 3865] close(14) = -1 EBADF (Bad file descriptor) [pid 3865] close(15) = -1 EBADF (Bad file descriptor) [pid 3865] close(16) = -1 EBADF (Bad file descriptor) [pid 3865] close(17) = -1 EBADF (Bad file descriptor) [pid 3865] close(18) = -1 EBADF (Bad file descriptor) [pid 3865] close(19) = -1 EBADF (Bad file descriptor) [pid 3865] close(20) = -1 EBADF (Bad file descriptor) [pid 3865] close(21) = -1 EBADF (Bad file descriptor) [pid 3865] close(22) = -1 EBADF (Bad file descriptor) [pid 3865] close(23) = -1 EBADF (Bad file descriptor) [pid 3865] close(24) = -1 EBADF (Bad file descriptor) [pid 3865] close(25) = -1 EBADF (Bad file descriptor) [pid 3865] close(26) = -1 EBADF (Bad file descriptor) [pid 3865] close(27) = -1 EBADF (Bad file descriptor) [pid 3865] close(28) = -1 EBADF (Bad file descriptor) [pid 3865] close(29) = -1 EBADF (Bad file descriptor) [pid 3865] exit_group(0) = ? [pid 3865] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=263, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./261", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./261", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./261/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./261/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./261/binderfs") = 0 [pid 3603] umount2("./261/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./261/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./261/cgroup") = 0 [pid 3603] umount2("./261/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./261/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./261/cgroup.net") = 0 [pid 3603] umount2("./261/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./261/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./261/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./261") = 0 [pid 3603] mkdir("./262", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 264 ./strace-static-x86_64: Process 3866 attached [pid 3866] chdir("./262") = 0 [pid 3866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3866] setpgid(0, 0) = 0 [pid 3866] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3866] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3866] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3866] write(3, "1000", 4) = 4 [pid 3866] close(3) = 0 [pid 3866] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3866] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3866] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3866] gettid() = 264 [pid 3866] process_vm_writev(264, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3866] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3866] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3866] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3866] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3866] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3866] close(3) = 0 [pid 3866] close(4) = 0 [pid 3866] close(5) = -1 EBADF (Bad file descriptor) [pid 3866] close(6) = -1 EBADF (Bad file descriptor) [pid 3866] close(7) = -1 EBADF (Bad file descriptor) [pid 3866] close(8) = -1 EBADF (Bad file descriptor) [pid 3866] close(9) = -1 EBADF (Bad file descriptor) [pid 3866] close(10) = -1 EBADF (Bad file descriptor) [pid 3866] close(11) = -1 EBADF (Bad file descriptor) [pid 3866] close(12) = -1 EBADF (Bad file descriptor) [pid 3866] close(13) = -1 EBADF (Bad file descriptor) [pid 3866] close(14) = -1 EBADF (Bad file descriptor) [pid 3866] close(15) = -1 EBADF (Bad file descriptor) [pid 3866] close(16) = -1 EBADF (Bad file descriptor) [pid 3866] close(17) = -1 EBADF (Bad file descriptor) [pid 3866] close(18) = -1 EBADF (Bad file descriptor) [pid 3866] close(19) = -1 EBADF (Bad file descriptor) [pid 3866] close(20) = -1 EBADF (Bad file descriptor) [pid 3866] close(21) = -1 EBADF (Bad file descriptor) [pid 3866] close(22) = -1 EBADF (Bad file descriptor) [pid 3866] close(23) = -1 EBADF (Bad file descriptor) [pid 3866] close(24) = -1 EBADF (Bad file descriptor) [pid 3866] close(25) = -1 EBADF (Bad file descriptor) [pid 3866] close(26) = -1 EBADF (Bad file descriptor) [pid 3866] close(27) = -1 EBADF (Bad file descriptor) [pid 3866] close(28) = -1 EBADF (Bad file descriptor) [pid 3866] close(29) = -1 EBADF (Bad file descriptor) [pid 3866] exit_group(0) = ? [pid 3866] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=264, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./262", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./262", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./262/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./262/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./262/binderfs") = 0 [pid 3603] umount2("./262/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./262/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./262/cgroup") = 0 [pid 3603] umount2("./262/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./262/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./262/cgroup.net") = 0 [pid 3603] umount2("./262/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./262/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./262/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./262") = 0 [pid 3603] mkdir("./263", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3867 attached [pid 3867] chdir("./263" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 265 [pid 3867] <... chdir resumed>) = 0 [pid 3867] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3867] setpgid(0, 0) = 0 [pid 3867] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3867] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3867] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3867] write(3, "1000", 4) = 4 [pid 3867] close(3) = 0 [pid 3867] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3867] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3867] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3867] gettid() = 265 [pid 3867] process_vm_writev(265, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3867] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3867] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3867] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3867] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3867] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3867] close(3) = 0 [pid 3867] close(4) = 0 [pid 3867] close(5) = -1 EBADF (Bad file descriptor) [pid 3867] close(6) = -1 EBADF (Bad file descriptor) [pid 3867] close(7) = -1 EBADF (Bad file descriptor) [pid 3867] close(8) = -1 EBADF (Bad file descriptor) [pid 3867] close(9) = -1 EBADF (Bad file descriptor) [pid 3867] close(10) = -1 EBADF (Bad file descriptor) [pid 3867] close(11) = -1 EBADF (Bad file descriptor) [pid 3867] close(12) = -1 EBADF (Bad file descriptor) [pid 3867] close(13) = -1 EBADF (Bad file descriptor) [pid 3867] close(14) = -1 EBADF (Bad file descriptor) [pid 3867] close(15) = -1 EBADF (Bad file descriptor) [pid 3867] close(16) = -1 EBADF (Bad file descriptor) [pid 3867] close(17) = -1 EBADF (Bad file descriptor) [pid 3867] close(18) = -1 EBADF (Bad file descriptor) [pid 3867] close(19) = -1 EBADF (Bad file descriptor) [pid 3867] close(20) = -1 EBADF (Bad file descriptor) [pid 3867] close(21) = -1 EBADF (Bad file descriptor) [pid 3867] close(22) = -1 EBADF (Bad file descriptor) [pid 3867] close(23) = -1 EBADF (Bad file descriptor) [pid 3867] close(24) = -1 EBADF (Bad file descriptor) [pid 3867] close(25) = -1 EBADF (Bad file descriptor) [pid 3867] close(26) = -1 EBADF (Bad file descriptor) [pid 3867] close(27) = -1 EBADF (Bad file descriptor) [pid 3867] close(28) = -1 EBADF (Bad file descriptor) [pid 3867] close(29) = -1 EBADF (Bad file descriptor) [pid 3867] exit_group(0) = ? [pid 3867] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=265, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./263", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./263", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./263/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./263/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./263/binderfs") = 0 [pid 3603] umount2("./263/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./263/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./263/cgroup") = 0 [pid 3603] umount2("./263/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./263/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./263/cgroup.net") = 0 [pid 3603] umount2("./263/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./263/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./263/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./263") = 0 [pid 3603] mkdir("./264", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3868 attached , child_tidptr=0x5555567b05d0) = 266 [pid 3868] chdir("./264") = 0 [pid 3868] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3868] setpgid(0, 0) = 0 [pid 3868] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3868] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3868] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3868] write(3, "1000", 4) = 4 [pid 3868] close(3) = 0 [pid 3868] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3868] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3868] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3868] gettid() = 266 [pid 3868] process_vm_writev(266, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3868] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3868] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3868] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3868] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3868] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3868] close(3) = 0 [pid 3868] close(4) = 0 [pid 3868] close(5) = -1 EBADF (Bad file descriptor) [pid 3868] close(6) = -1 EBADF (Bad file descriptor) [pid 3868] close(7) = -1 EBADF (Bad file descriptor) [pid 3868] close(8) = -1 EBADF (Bad file descriptor) [pid 3868] close(9) = -1 EBADF (Bad file descriptor) [pid 3868] close(10) = -1 EBADF (Bad file descriptor) [pid 3868] close(11) = -1 EBADF (Bad file descriptor) [pid 3868] close(12) = -1 EBADF (Bad file descriptor) [pid 3868] close(13) = -1 EBADF (Bad file descriptor) [pid 3868] close(14) = -1 EBADF (Bad file descriptor) [pid 3868] close(15) = -1 EBADF (Bad file descriptor) [pid 3868] close(16) = -1 EBADF (Bad file descriptor) [pid 3868] close(17) = -1 EBADF (Bad file descriptor) [pid 3868] close(18) = -1 EBADF (Bad file descriptor) [pid 3868] close(19) = -1 EBADF (Bad file descriptor) [pid 3868] close(20) = -1 EBADF (Bad file descriptor) [pid 3868] close(21) = -1 EBADF (Bad file descriptor) [pid 3868] close(22) = -1 EBADF (Bad file descriptor) [pid 3868] close(23) = -1 EBADF (Bad file descriptor) [pid 3868] close(24) = -1 EBADF (Bad file descriptor) [pid 3868] close(25) = -1 EBADF (Bad file descriptor) [pid 3868] close(26) = -1 EBADF (Bad file descriptor) [pid 3868] close(27) = -1 EBADF (Bad file descriptor) [pid 3868] close(28) = -1 EBADF (Bad file descriptor) [pid 3868] close(29) = -1 EBADF (Bad file descriptor) [pid 3868] exit_group(0) = ? [pid 3868] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=266, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./264", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./264", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./264/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./264/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./264/binderfs") = 0 [pid 3603] umount2("./264/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./264/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./264/cgroup") = 0 [pid 3603] umount2("./264/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./264/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./264/cgroup.net") = 0 [pid 3603] umount2("./264/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./264/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./264/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./264") = 0 [pid 3603] mkdir("./265", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3869 attached , child_tidptr=0x5555567b05d0) = 267 [pid 3869] chdir("./265") = 0 [pid 3869] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3869] setpgid(0, 0) = 0 [pid 3869] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3869] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3869] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3869] write(3, "1000", 4) = 4 [pid 3869] close(3) = 0 [pid 3869] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3869] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3869] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3869] gettid() = 267 [pid 3869] process_vm_writev(267, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3869] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3869] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3869] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3869] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3869] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3869] close(3) = 0 [pid 3869] close(4) = 0 [pid 3869] close(5) = -1 EBADF (Bad file descriptor) [pid 3869] close(6) = -1 EBADF (Bad file descriptor) [pid 3869] close(7) = -1 EBADF (Bad file descriptor) [pid 3869] close(8) = -1 EBADF (Bad file descriptor) [pid 3869] close(9) = -1 EBADF (Bad file descriptor) [pid 3869] close(10) = -1 EBADF (Bad file descriptor) [pid 3869] close(11) = -1 EBADF (Bad file descriptor) [pid 3869] close(12) = -1 EBADF (Bad file descriptor) [pid 3869] close(13) = -1 EBADF (Bad file descriptor) [pid 3869] close(14) = -1 EBADF (Bad file descriptor) [pid 3869] close(15) = -1 EBADF (Bad file descriptor) [pid 3869] close(16) = -1 EBADF (Bad file descriptor) [pid 3869] close(17) = -1 EBADF (Bad file descriptor) [pid 3869] close(18) = -1 EBADF (Bad file descriptor) [pid 3869] close(19) = -1 EBADF (Bad file descriptor) [pid 3869] close(20) = -1 EBADF (Bad file descriptor) [pid 3869] close(21) = -1 EBADF (Bad file descriptor) [pid 3869] close(22) = -1 EBADF (Bad file descriptor) [pid 3869] close(23) = -1 EBADF (Bad file descriptor) [pid 3869] close(24) = -1 EBADF (Bad file descriptor) [pid 3869] close(25) = -1 EBADF (Bad file descriptor) [pid 3869] close(26) = -1 EBADF (Bad file descriptor) [pid 3869] close(27) = -1 EBADF (Bad file descriptor) [pid 3869] close(28) = -1 EBADF (Bad file descriptor) [pid 3869] close(29) = -1 EBADF (Bad file descriptor) [pid 3869] exit_group(0) = ? [pid 3869] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=267, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./265", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./265", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./265/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./265/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./265/binderfs") = 0 [pid 3603] umount2("./265/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./265/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./265/cgroup") = 0 [pid 3603] umount2("./265/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./265/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./265/cgroup.net") = 0 [pid 3603] umount2("./265/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./265/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./265/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./265") = 0 [pid 3603] mkdir("./266", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 268 ./strace-static-x86_64: Process 3870 attached [pid 3870] chdir("./266") = 0 [pid 3870] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3870] setpgid(0, 0) = 0 [pid 3870] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3870] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3870] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3870] write(3, "1000", 4) = 4 [pid 3870] close(3) = 0 [pid 3870] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3870] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3870] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3870] gettid() = 268 [pid 3870] process_vm_writev(268, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3870] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3870] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3870] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3870] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3870] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3870] close(3) = 0 [pid 3870] close(4) = 0 [pid 3870] close(5) = -1 EBADF (Bad file descriptor) [pid 3870] close(6) = -1 EBADF (Bad file descriptor) [pid 3870] close(7) = -1 EBADF (Bad file descriptor) [pid 3870] close(8) = -1 EBADF (Bad file descriptor) [pid 3870] close(9) = -1 EBADF (Bad file descriptor) [pid 3870] close(10) = -1 EBADF (Bad file descriptor) [pid 3870] close(11) = -1 EBADF (Bad file descriptor) [pid 3870] close(12) = -1 EBADF (Bad file descriptor) [pid 3870] close(13) = -1 EBADF (Bad file descriptor) [pid 3870] close(14) = -1 EBADF (Bad file descriptor) [pid 3870] close(15) = -1 EBADF (Bad file descriptor) [pid 3870] close(16) = -1 EBADF (Bad file descriptor) [pid 3870] close(17) = -1 EBADF (Bad file descriptor) [pid 3870] close(18) = -1 EBADF (Bad file descriptor) [pid 3870] close(19) = -1 EBADF (Bad file descriptor) [pid 3870] close(20) = -1 EBADF (Bad file descriptor) [pid 3870] close(21) = -1 EBADF (Bad file descriptor) [pid 3870] close(22) = -1 EBADF (Bad file descriptor) [pid 3870] close(23) = -1 EBADF (Bad file descriptor) [pid 3870] close(24) = -1 EBADF (Bad file descriptor) [pid 3870] close(25) = -1 EBADF (Bad file descriptor) [pid 3870] close(26) = -1 EBADF (Bad file descriptor) [pid 3870] close(27) = -1 EBADF (Bad file descriptor) [pid 3870] close(28) = -1 EBADF (Bad file descriptor) [pid 3870] close(29) = -1 EBADF (Bad file descriptor) [pid 3870] exit_group(0) = ? [pid 3870] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=268, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./266", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./266", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./266/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./266/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./266/binderfs") = 0 [pid 3603] umount2("./266/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./266/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./266/cgroup") = 0 [pid 3603] umount2("./266/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./266/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./266/cgroup.net") = 0 [pid 3603] umount2("./266/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./266/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./266/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./266") = 0 [pid 3603] mkdir("./267", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3871 attached , child_tidptr=0x5555567b05d0) = 269 [pid 3871] chdir("./267") = 0 [pid 3871] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3871] setpgid(0, 0) = 0 [pid 3871] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3871] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3871] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3871] write(3, "1000", 4) = 4 [pid 3871] close(3) = 0 [pid 3871] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3871] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3871] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3871] gettid() = 269 [pid 3871] process_vm_writev(269, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3871] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3871] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3871] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3871] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3871] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3871] close(3) = 0 [pid 3871] close(4) = 0 [pid 3871] close(5) = -1 EBADF (Bad file descriptor) [pid 3871] close(6) = -1 EBADF (Bad file descriptor) [pid 3871] close(7) = -1 EBADF (Bad file descriptor) [pid 3871] close(8) = -1 EBADF (Bad file descriptor) [pid 3871] close(9) = -1 EBADF (Bad file descriptor) [pid 3871] close(10) = -1 EBADF (Bad file descriptor) [pid 3871] close(11) = -1 EBADF (Bad file descriptor) [pid 3871] close(12) = -1 EBADF (Bad file descriptor) [pid 3871] close(13) = -1 EBADF (Bad file descriptor) [pid 3871] close(14) = -1 EBADF (Bad file descriptor) [pid 3871] close(15) = -1 EBADF (Bad file descriptor) [pid 3871] close(16) = -1 EBADF (Bad file descriptor) [pid 3871] close(17) = -1 EBADF (Bad file descriptor) [pid 3871] close(18) = -1 EBADF (Bad file descriptor) [pid 3871] close(19) = -1 EBADF (Bad file descriptor) [pid 3871] close(20) = -1 EBADF (Bad file descriptor) [pid 3871] close(21) = -1 EBADF (Bad file descriptor) [pid 3871] close(22) = -1 EBADF (Bad file descriptor) [pid 3871] close(23) = -1 EBADF (Bad file descriptor) [pid 3871] close(24) = -1 EBADF (Bad file descriptor) [pid 3871] close(25) = -1 EBADF (Bad file descriptor) [pid 3871] close(26) = -1 EBADF (Bad file descriptor) [pid 3871] close(27) = -1 EBADF (Bad file descriptor) [pid 3871] close(28) = -1 EBADF (Bad file descriptor) [pid 3871] close(29) = -1 EBADF (Bad file descriptor) [pid 3871] exit_group(0) = ? [pid 3871] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=269, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./267", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./267", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./267/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./267/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./267/binderfs") = 0 [pid 3603] umount2("./267/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./267/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./267/cgroup") = 0 [pid 3603] umount2("./267/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./267/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./267/cgroup.net") = 0 [pid 3603] umount2("./267/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./267/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./267/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./267") = 0 [pid 3603] mkdir("./268", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3872 attached [pid 3872] chdir("./268") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 270 [pid 3872] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3872] setpgid(0, 0) = 0 [pid 3872] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3872] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3872] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3872] write(3, "1000", 4) = 4 [pid 3872] close(3) = 0 [pid 3872] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3872] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3872] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3872] gettid() = 270 [pid 3872] process_vm_writev(270, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3872] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3872] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3872] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3872] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3872] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3872] close(3) = 0 [pid 3872] close(4) = 0 [pid 3872] close(5) = -1 EBADF (Bad file descriptor) [pid 3872] close(6) = -1 EBADF (Bad file descriptor) [pid 3872] close(7) = -1 EBADF (Bad file descriptor) [pid 3872] close(8) = -1 EBADF (Bad file descriptor) [pid 3872] close(9) = -1 EBADF (Bad file descriptor) [pid 3872] close(10) = -1 EBADF (Bad file descriptor) [pid 3872] close(11) = -1 EBADF (Bad file descriptor) [pid 3872] close(12) = -1 EBADF (Bad file descriptor) [pid 3872] close(13) = -1 EBADF (Bad file descriptor) [pid 3872] close(14) = -1 EBADF (Bad file descriptor) [pid 3872] close(15) = -1 EBADF (Bad file descriptor) [pid 3872] close(16) = -1 EBADF (Bad file descriptor) [pid 3872] close(17) = -1 EBADF (Bad file descriptor) [pid 3872] close(18) = -1 EBADF (Bad file descriptor) [pid 3872] close(19) = -1 EBADF (Bad file descriptor) [pid 3872] close(20) = -1 EBADF (Bad file descriptor) [pid 3872] close(21) = -1 EBADF (Bad file descriptor) [pid 3872] close(22) = -1 EBADF (Bad file descriptor) [pid 3872] close(23) = -1 EBADF (Bad file descriptor) [pid 3872] close(24) = -1 EBADF (Bad file descriptor) [pid 3872] close(25) = -1 EBADF (Bad file descriptor) [pid 3872] close(26) = -1 EBADF (Bad file descriptor) [pid 3872] close(27) = -1 EBADF (Bad file descriptor) [pid 3872] close(28) = -1 EBADF (Bad file descriptor) [pid 3872] close(29) = -1 EBADF (Bad file descriptor) [pid 3872] exit_group(0) = ? [pid 3872] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=270, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./268", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./268", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./268/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./268/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./268/binderfs") = 0 [pid 3603] umount2("./268/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./268/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./268/cgroup") = 0 [pid 3603] umount2("./268/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./268/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./268/cgroup.net") = 0 [pid 3603] umount2("./268/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./268/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./268/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./268") = 0 [pid 3603] mkdir("./269", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3873 attached , child_tidptr=0x5555567b05d0) = 271 [pid 3873] chdir("./269") = 0 [pid 3873] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3873] setpgid(0, 0) = 0 [pid 3873] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3873] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3873] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3873] write(3, "1000", 4) = 4 [pid 3873] close(3) = 0 [pid 3873] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3873] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3873] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3873] gettid() = 271 [pid 3873] process_vm_writev(271, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3873] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3873] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3873] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3873] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3873] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3873] close(3) = 0 [pid 3873] close(4) = 0 [pid 3873] close(5) = -1 EBADF (Bad file descriptor) [pid 3873] close(6) = -1 EBADF (Bad file descriptor) [pid 3873] close(7) = -1 EBADF (Bad file descriptor) [pid 3873] close(8) = -1 EBADF (Bad file descriptor) [pid 3873] close(9) = -1 EBADF (Bad file descriptor) [pid 3873] close(10) = -1 EBADF (Bad file descriptor) [pid 3873] close(11) = -1 EBADF (Bad file descriptor) [pid 3873] close(12) = -1 EBADF (Bad file descriptor) [pid 3873] close(13) = -1 EBADF (Bad file descriptor) [pid 3873] close(14) = -1 EBADF (Bad file descriptor) [pid 3873] close(15) = -1 EBADF (Bad file descriptor) [pid 3873] close(16) = -1 EBADF (Bad file descriptor) [pid 3873] close(17) = -1 EBADF (Bad file descriptor) [pid 3873] close(18) = -1 EBADF (Bad file descriptor) [pid 3873] close(19) = -1 EBADF (Bad file descriptor) [pid 3873] close(20) = -1 EBADF (Bad file descriptor) [pid 3873] close(21) = -1 EBADF (Bad file descriptor) [pid 3873] close(22) = -1 EBADF (Bad file descriptor) [pid 3873] close(23) = -1 EBADF (Bad file descriptor) [pid 3873] close(24) = -1 EBADF (Bad file descriptor) [pid 3873] close(25) = -1 EBADF (Bad file descriptor) [pid 3873] close(26) = -1 EBADF (Bad file descriptor) [pid 3873] close(27) = -1 EBADF (Bad file descriptor) [pid 3873] close(28) = -1 EBADF (Bad file descriptor) [pid 3873] close(29) = -1 EBADF (Bad file descriptor) [pid 3873] exit_group(0) = ? [pid 3873] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=271, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./269", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./269", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./269/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./269/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./269/binderfs") = 0 [pid 3603] umount2("./269/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./269/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./269/cgroup") = 0 [pid 3603] umount2("./269/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./269/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./269/cgroup.net") = 0 [pid 3603] umount2("./269/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./269/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./269/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./269") = 0 [pid 3603] mkdir("./270", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3874 attached , child_tidptr=0x5555567b05d0) = 272 [pid 3874] chdir("./270") = 0 [pid 3874] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3874] setpgid(0, 0) = 0 [pid 3874] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3874] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3874] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3874] write(3, "1000", 4) = 4 [pid 3874] close(3) = 0 [pid 3874] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3874] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3874] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3874] gettid() = 272 [pid 3874] process_vm_writev(272, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3874] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3874] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3874] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3874] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3874] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3874] close(3) = 0 [pid 3874] close(4) = 0 [pid 3874] close(5) = -1 EBADF (Bad file descriptor) [pid 3874] close(6) = -1 EBADF (Bad file descriptor) [pid 3874] close(7) = -1 EBADF (Bad file descriptor) [pid 3874] close(8) = -1 EBADF (Bad file descriptor) [pid 3874] close(9) = -1 EBADF (Bad file descriptor) [pid 3874] close(10) = -1 EBADF (Bad file descriptor) [pid 3874] close(11) = -1 EBADF (Bad file descriptor) [pid 3874] close(12) = -1 EBADF (Bad file descriptor) [pid 3874] close(13) = -1 EBADF (Bad file descriptor) [pid 3874] close(14) = -1 EBADF (Bad file descriptor) [pid 3874] close(15) = -1 EBADF (Bad file descriptor) [pid 3874] close(16) = -1 EBADF (Bad file descriptor) [pid 3874] close(17) = -1 EBADF (Bad file descriptor) [pid 3874] close(18) = -1 EBADF (Bad file descriptor) [pid 3874] close(19) = -1 EBADF (Bad file descriptor) [pid 3874] close(20) = -1 EBADF (Bad file descriptor) [pid 3874] close(21) = -1 EBADF (Bad file descriptor) [pid 3874] close(22) = -1 EBADF (Bad file descriptor) [pid 3874] close(23) = -1 EBADF (Bad file descriptor) [pid 3874] close(24) = -1 EBADF (Bad file descriptor) [pid 3874] close(25) = -1 EBADF (Bad file descriptor) [pid 3874] close(26) = -1 EBADF (Bad file descriptor) [pid 3874] close(27) = -1 EBADF (Bad file descriptor) [pid 3874] close(28) = -1 EBADF (Bad file descriptor) [pid 3874] close(29) = -1 EBADF (Bad file descriptor) [pid 3874] exit_group(0) = ? [pid 3874] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=272, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./270", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./270", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./270/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./270/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./270/binderfs") = 0 [pid 3603] umount2("./270/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./270/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./270/cgroup") = 0 [pid 3603] umount2("./270/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./270/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./270/cgroup.net") = 0 [pid 3603] umount2("./270/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./270/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./270/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./270") = 0 [pid 3603] mkdir("./271", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3875 attached , child_tidptr=0x5555567b05d0) = 273 [pid 3875] chdir("./271") = 0 [pid 3875] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3875] setpgid(0, 0) = 0 [pid 3875] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3875] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3875] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3875] write(3, "1000", 4) = 4 [pid 3875] close(3) = 0 [pid 3875] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3875] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3875] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3875] gettid() = 273 [pid 3875] process_vm_writev(273, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3875] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3875] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3875] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3875] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3875] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3875] close(3) = 0 [pid 3875] close(4) = 0 [pid 3875] close(5) = -1 EBADF (Bad file descriptor) [pid 3875] close(6) = -1 EBADF (Bad file descriptor) [pid 3875] close(7) = -1 EBADF (Bad file descriptor) [pid 3875] close(8) = -1 EBADF (Bad file descriptor) [pid 3875] close(9) = -1 EBADF (Bad file descriptor) [pid 3875] close(10) = -1 EBADF (Bad file descriptor) [pid 3875] close(11) = -1 EBADF (Bad file descriptor) [pid 3875] close(12) = -1 EBADF (Bad file descriptor) [pid 3875] close(13) = -1 EBADF (Bad file descriptor) [pid 3875] close(14) = -1 EBADF (Bad file descriptor) [pid 3875] close(15) = -1 EBADF (Bad file descriptor) [pid 3875] close(16) = -1 EBADF (Bad file descriptor) [pid 3875] close(17) = -1 EBADF (Bad file descriptor) [pid 3875] close(18) = -1 EBADF (Bad file descriptor) [pid 3875] close(19) = -1 EBADF (Bad file descriptor) [pid 3875] close(20) = -1 EBADF (Bad file descriptor) [pid 3875] close(21) = -1 EBADF (Bad file descriptor) [pid 3875] close(22) = -1 EBADF (Bad file descriptor) [pid 3875] close(23) = -1 EBADF (Bad file descriptor) [pid 3875] close(24) = -1 EBADF (Bad file descriptor) [pid 3875] close(25) = -1 EBADF (Bad file descriptor) [pid 3875] close(26) = -1 EBADF (Bad file descriptor) [pid 3875] close(27) = -1 EBADF (Bad file descriptor) [pid 3875] close(28) = -1 EBADF (Bad file descriptor) [pid 3875] close(29) = -1 EBADF (Bad file descriptor) [pid 3875] exit_group(0) = ? [pid 3875] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=273, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./271", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./271", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./271/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./271/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./271/binderfs") = 0 [pid 3603] umount2("./271/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./271/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./271/cgroup") = 0 [pid 3603] umount2("./271/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./271/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./271/cgroup.net") = 0 [pid 3603] umount2("./271/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./271/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./271/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./271") = 0 [pid 3603] mkdir("./272", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3876 attached [pid 3876] chdir("./272" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 274 [pid 3876] <... chdir resumed>) = 0 [pid 3876] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3876] setpgid(0, 0) = 0 [pid 3876] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3876] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3876] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3876] write(3, "1000", 4) = 4 [pid 3876] close(3) = 0 [pid 3876] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3876] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3876] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3876] gettid() = 274 [pid 3876] process_vm_writev(274, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3876] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3876] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3876] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3876] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3876] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3876] close(3) = 0 [pid 3876] close(4) = 0 [pid 3876] close(5) = -1 EBADF (Bad file descriptor) [pid 3876] close(6) = -1 EBADF (Bad file descriptor) [pid 3876] close(7) = -1 EBADF (Bad file descriptor) [pid 3876] close(8) = -1 EBADF (Bad file descriptor) [pid 3876] close(9) = -1 EBADF (Bad file descriptor) [pid 3876] close(10) = -1 EBADF (Bad file descriptor) [pid 3876] close(11) = -1 EBADF (Bad file descriptor) [pid 3876] close(12) = -1 EBADF (Bad file descriptor) [pid 3876] close(13) = -1 EBADF (Bad file descriptor) [pid 3876] close(14) = -1 EBADF (Bad file descriptor) [pid 3876] close(15) = -1 EBADF (Bad file descriptor) [pid 3876] close(16) = -1 EBADF (Bad file descriptor) [pid 3876] close(17) = -1 EBADF (Bad file descriptor) [pid 3876] close(18) = -1 EBADF (Bad file descriptor) [pid 3876] close(19) = -1 EBADF (Bad file descriptor) [pid 3876] close(20) = -1 EBADF (Bad file descriptor) [pid 3876] close(21) = -1 EBADF (Bad file descriptor) [pid 3876] close(22) = -1 EBADF (Bad file descriptor) [pid 3876] close(23) = -1 EBADF (Bad file descriptor) [pid 3876] close(24) = -1 EBADF (Bad file descriptor) [pid 3876] close(25) = -1 EBADF (Bad file descriptor) [pid 3876] close(26) = -1 EBADF (Bad file descriptor) [pid 3876] close(27) = -1 EBADF (Bad file descriptor) [pid 3876] close(28) = -1 EBADF (Bad file descriptor) [pid 3876] close(29) = -1 EBADF (Bad file descriptor) [pid 3876] exit_group(0) = ? [pid 3876] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=274, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./272", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./272", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./272/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./272/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./272/binderfs") = 0 [pid 3603] umount2("./272/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./272/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./272/cgroup") = 0 [pid 3603] umount2("./272/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./272/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./272/cgroup.net") = 0 [pid 3603] umount2("./272/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./272/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./272/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./272") = 0 [pid 3603] mkdir("./273", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3877 attached , child_tidptr=0x5555567b05d0) = 275 [pid 3877] chdir("./273") = 0 [pid 3877] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3877] setpgid(0, 0) = 0 [pid 3877] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3877] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3877] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3877] write(3, "1000", 4) = 4 [pid 3877] close(3) = 0 [pid 3877] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3877] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3877] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3877] gettid() = 275 [pid 3877] process_vm_writev(275, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3877] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3877] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3877] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3877] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3877] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3877] close(3) = 0 [pid 3877] close(4) = 0 [pid 3877] close(5) = -1 EBADF (Bad file descriptor) [pid 3877] close(6) = -1 EBADF (Bad file descriptor) [pid 3877] close(7) = -1 EBADF (Bad file descriptor) [pid 3877] close(8) = -1 EBADF (Bad file descriptor) [pid 3877] close(9) = -1 EBADF (Bad file descriptor) [pid 3877] close(10) = -1 EBADF (Bad file descriptor) [pid 3877] close(11) = -1 EBADF (Bad file descriptor) [pid 3877] close(12) = -1 EBADF (Bad file descriptor) [pid 3877] close(13) = -1 EBADF (Bad file descriptor) [pid 3877] close(14) = -1 EBADF (Bad file descriptor) [pid 3877] close(15) = -1 EBADF (Bad file descriptor) [pid 3877] close(16) = -1 EBADF (Bad file descriptor) [pid 3877] close(17) = -1 EBADF (Bad file descriptor) [pid 3877] close(18) = -1 EBADF (Bad file descriptor) [pid 3877] close(19) = -1 EBADF (Bad file descriptor) [pid 3877] close(20) = -1 EBADF (Bad file descriptor) [pid 3877] close(21) = -1 EBADF (Bad file descriptor) [pid 3877] close(22) = -1 EBADF (Bad file descriptor) [pid 3877] close(23) = -1 EBADF (Bad file descriptor) [pid 3877] close(24) = -1 EBADF (Bad file descriptor) [pid 3877] close(25) = -1 EBADF (Bad file descriptor) [pid 3877] close(26) = -1 EBADF (Bad file descriptor) [pid 3877] close(27) = -1 EBADF (Bad file descriptor) [pid 3877] close(28) = -1 EBADF (Bad file descriptor) [pid 3877] close(29) = -1 EBADF (Bad file descriptor) [pid 3877] exit_group(0) = ? [pid 3877] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=275, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./273", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./273", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./273/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./273/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./273/binderfs") = 0 [pid 3603] umount2("./273/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./273/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./273/cgroup") = 0 [pid 3603] umount2("./273/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./273/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./273/cgroup.net") = 0 [pid 3603] umount2("./273/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./273/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./273/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./273") = 0 [pid 3603] mkdir("./274", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 276 ./strace-static-x86_64: Process 3878 attached [pid 3878] chdir("./274") = 0 [pid 3878] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3878] setpgid(0, 0) = 0 [pid 3878] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3878] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3878] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3878] write(3, "1000", 4) = 4 [pid 3878] close(3) = 0 [pid 3878] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3878] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3878] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3878] gettid() = 276 [pid 3878] process_vm_writev(276, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3878] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3878] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3878] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3878] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3878] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3878] close(3) = 0 [pid 3878] close(4) = 0 [pid 3878] close(5) = -1 EBADF (Bad file descriptor) [pid 3878] close(6) = -1 EBADF (Bad file descriptor) [pid 3878] close(7) = -1 EBADF (Bad file descriptor) [pid 3878] close(8) = -1 EBADF (Bad file descriptor) [pid 3878] close(9) = -1 EBADF (Bad file descriptor) [pid 3878] close(10) = -1 EBADF (Bad file descriptor) [pid 3878] close(11) = -1 EBADF (Bad file descriptor) [pid 3878] close(12) = -1 EBADF (Bad file descriptor) [pid 3878] close(13) = -1 EBADF (Bad file descriptor) [pid 3878] close(14) = -1 EBADF (Bad file descriptor) [pid 3878] close(15) = -1 EBADF (Bad file descriptor) [pid 3878] close(16) = -1 EBADF (Bad file descriptor) [pid 3878] close(17) = -1 EBADF (Bad file descriptor) [pid 3878] close(18) = -1 EBADF (Bad file descriptor) [pid 3878] close(19) = -1 EBADF (Bad file descriptor) [pid 3878] close(20) = -1 EBADF (Bad file descriptor) [pid 3878] close(21) = -1 EBADF (Bad file descriptor) [pid 3878] close(22) = -1 EBADF (Bad file descriptor) [pid 3878] close(23) = -1 EBADF (Bad file descriptor) [pid 3878] close(24) = -1 EBADF (Bad file descriptor) [pid 3878] close(25) = -1 EBADF (Bad file descriptor) [pid 3878] close(26) = -1 EBADF (Bad file descriptor) [pid 3878] close(27) = -1 EBADF (Bad file descriptor) [pid 3878] close(28) = -1 EBADF (Bad file descriptor) [pid 3878] close(29) = -1 EBADF (Bad file descriptor) [pid 3878] exit_group(0) = ? [pid 3878] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=276, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./274", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./274", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./274/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./274/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./274/binderfs") = 0 [pid 3603] umount2("./274/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./274/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./274/cgroup") = 0 [pid 3603] umount2("./274/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./274/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./274/cgroup.net") = 0 [pid 3603] umount2("./274/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./274/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./274/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./274") = 0 [pid 3603] mkdir("./275", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3879 attached , child_tidptr=0x5555567b05d0) = 277 [pid 3879] chdir("./275") = 0 [pid 3879] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3879] setpgid(0, 0) = 0 [pid 3879] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3879] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3879] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3879] write(3, "1000", 4) = 4 [pid 3879] close(3) = 0 [pid 3879] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3879] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3879] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3879] gettid() = 277 [pid 3879] process_vm_writev(277, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3879] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3879] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3879] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3879] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3879] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3879] close(3) = 0 [pid 3879] close(4) = 0 [pid 3879] close(5) = -1 EBADF (Bad file descriptor) [pid 3879] close(6) = -1 EBADF (Bad file descriptor) [pid 3879] close(7) = -1 EBADF (Bad file descriptor) [pid 3879] close(8) = -1 EBADF (Bad file descriptor) [pid 3879] close(9) = -1 EBADF (Bad file descriptor) [pid 3879] close(10) = -1 EBADF (Bad file descriptor) [pid 3879] close(11) = -1 EBADF (Bad file descriptor) [pid 3879] close(12) = -1 EBADF (Bad file descriptor) [pid 3879] close(13) = -1 EBADF (Bad file descriptor) [pid 3879] close(14) = -1 EBADF (Bad file descriptor) [pid 3879] close(15) = -1 EBADF (Bad file descriptor) [pid 3879] close(16) = -1 EBADF (Bad file descriptor) [pid 3879] close(17) = -1 EBADF (Bad file descriptor) [pid 3879] close(18) = -1 EBADF (Bad file descriptor) [pid 3879] close(19) = -1 EBADF (Bad file descriptor) [pid 3879] close(20) = -1 EBADF (Bad file descriptor) [pid 3879] close(21) = -1 EBADF (Bad file descriptor) [pid 3879] close(22) = -1 EBADF (Bad file descriptor) [pid 3879] close(23) = -1 EBADF (Bad file descriptor) [pid 3879] close(24) = -1 EBADF (Bad file descriptor) [pid 3879] close(25) = -1 EBADF (Bad file descriptor) [pid 3879] close(26) = -1 EBADF (Bad file descriptor) [pid 3879] close(27) = -1 EBADF (Bad file descriptor) [pid 3879] close(28) = -1 EBADF (Bad file descriptor) [pid 3879] close(29) = -1 EBADF (Bad file descriptor) [pid 3879] exit_group(0) = ? [pid 3879] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=277, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./275", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./275", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./275/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./275/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./275/binderfs") = 0 [pid 3603] umount2("./275/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./275/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./275/cgroup") = 0 [pid 3603] umount2("./275/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./275/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./275/cgroup.net") = 0 [pid 3603] umount2("./275/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./275/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./275/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./275") = 0 [pid 3603] mkdir("./276", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3880 attached [pid 3880] chdir("./276" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 278 [pid 3880] <... chdir resumed>) = 0 [pid 3880] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3880] setpgid(0, 0) = 0 [pid 3880] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3880] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3880] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3880] write(3, "1000", 4) = 4 [pid 3880] close(3) = 0 [pid 3880] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3880] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3880] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3880] gettid() = 278 [pid 3880] process_vm_writev(278, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3880] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3880] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3880] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3880] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3880] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3880] close(3) = 0 [pid 3880] close(4) = 0 [pid 3880] close(5) = -1 EBADF (Bad file descriptor) [pid 3880] close(6) = -1 EBADF (Bad file descriptor) [pid 3880] close(7) = -1 EBADF (Bad file descriptor) [pid 3880] close(8) = -1 EBADF (Bad file descriptor) [pid 3880] close(9) = -1 EBADF (Bad file descriptor) [pid 3880] close(10) = -1 EBADF (Bad file descriptor) [pid 3880] close(11) = -1 EBADF (Bad file descriptor) [pid 3880] close(12) = -1 EBADF (Bad file descriptor) [pid 3880] close(13) = -1 EBADF (Bad file descriptor) [pid 3880] close(14) = -1 EBADF (Bad file descriptor) [pid 3880] close(15) = -1 EBADF (Bad file descriptor) [pid 3880] close(16) = -1 EBADF (Bad file descriptor) [pid 3880] close(17) = -1 EBADF (Bad file descriptor) [pid 3880] close(18) = -1 EBADF (Bad file descriptor) [pid 3880] close(19) = -1 EBADF (Bad file descriptor) [pid 3880] close(20) = -1 EBADF (Bad file descriptor) [pid 3880] close(21) = -1 EBADF (Bad file descriptor) [pid 3880] close(22) = -1 EBADF (Bad file descriptor) [pid 3880] close(23) = -1 EBADF (Bad file descriptor) [pid 3880] close(24) = -1 EBADF (Bad file descriptor) [pid 3880] close(25) = -1 EBADF (Bad file descriptor) [pid 3880] close(26) = -1 EBADF (Bad file descriptor) [pid 3880] close(27) = -1 EBADF (Bad file descriptor) [pid 3880] close(28) = -1 EBADF (Bad file descriptor) [pid 3880] close(29) = -1 EBADF (Bad file descriptor) [pid 3880] exit_group(0) = ? [pid 3880] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=278, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./276", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./276", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./276/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./276/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./276/binderfs") = 0 [pid 3603] umount2("./276/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./276/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./276/cgroup") = 0 [pid 3603] umount2("./276/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./276/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./276/cgroup.net") = 0 [pid 3603] umount2("./276/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./276/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./276/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./276") = 0 [pid 3603] mkdir("./277", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3881 attached , child_tidptr=0x5555567b05d0) = 279 [pid 3881] chdir("./277") = 0 [pid 3881] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3881] setpgid(0, 0) = 0 [pid 3881] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3881] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3881] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3881] write(3, "1000", 4) = 4 [pid 3881] close(3) = 0 [pid 3881] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3881] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3881] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3881] gettid() = 279 [pid 3881] process_vm_writev(279, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3881] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3881] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3881] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3881] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3881] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3881] close(3) = 0 [pid 3881] close(4) = 0 [pid 3881] close(5) = -1 EBADF (Bad file descriptor) [pid 3881] close(6) = -1 EBADF (Bad file descriptor) [pid 3881] close(7) = -1 EBADF (Bad file descriptor) [pid 3881] close(8) = -1 EBADF (Bad file descriptor) [pid 3881] close(9) = -1 EBADF (Bad file descriptor) [pid 3881] close(10) = -1 EBADF (Bad file descriptor) [pid 3881] close(11) = -1 EBADF (Bad file descriptor) [pid 3881] close(12) = -1 EBADF (Bad file descriptor) [pid 3881] close(13) = -1 EBADF (Bad file descriptor) [pid 3881] close(14) = -1 EBADF (Bad file descriptor) [pid 3881] close(15) = -1 EBADF (Bad file descriptor) [pid 3881] close(16) = -1 EBADF (Bad file descriptor) [pid 3881] close(17) = -1 EBADF (Bad file descriptor) [pid 3881] close(18) = -1 EBADF (Bad file descriptor) [pid 3881] close(19) = -1 EBADF (Bad file descriptor) [pid 3881] close(20) = -1 EBADF (Bad file descriptor) [pid 3881] close(21) = -1 EBADF (Bad file descriptor) [pid 3881] close(22) = -1 EBADF (Bad file descriptor) [pid 3881] close(23) = -1 EBADF (Bad file descriptor) [pid 3881] close(24) = -1 EBADF (Bad file descriptor) [pid 3881] close(25) = -1 EBADF (Bad file descriptor) [pid 3881] close(26) = -1 EBADF (Bad file descriptor) [pid 3881] close(27) = -1 EBADF (Bad file descriptor) [pid 3881] close(28) = -1 EBADF (Bad file descriptor) [pid 3881] close(29) = -1 EBADF (Bad file descriptor) [pid 3881] exit_group(0) = ? [pid 3881] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=279, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./277", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./277", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./277/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./277/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./277/binderfs") = 0 [pid 3603] umount2("./277/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./277/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./277/cgroup") = 0 [pid 3603] umount2("./277/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./277/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./277/cgroup.net") = 0 [pid 3603] umount2("./277/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./277/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./277/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./277") = 0 [pid 3603] mkdir("./278", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3882 attached [pid 3882] chdir("./278") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 280 [pid 3882] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3882] setpgid(0, 0) = 0 [pid 3882] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3882] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3882] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3882] write(3, "1000", 4) = 4 [pid 3882] close(3) = 0 [pid 3882] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3882] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3882] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3882] gettid() = 280 [pid 3882] process_vm_writev(280, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3882] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3882] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3882] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3882] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3882] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3882] close(3) = 0 [pid 3882] close(4) = 0 [pid 3882] close(5) = -1 EBADF (Bad file descriptor) [pid 3882] close(6) = -1 EBADF (Bad file descriptor) [pid 3882] close(7) = -1 EBADF (Bad file descriptor) [pid 3882] close(8) = -1 EBADF (Bad file descriptor) [pid 3882] close(9) = -1 EBADF (Bad file descriptor) [pid 3882] close(10) = -1 EBADF (Bad file descriptor) [pid 3882] close(11) = -1 EBADF (Bad file descriptor) [pid 3882] close(12) = -1 EBADF (Bad file descriptor) [pid 3882] close(13) = -1 EBADF (Bad file descriptor) [pid 3882] close(14) = -1 EBADF (Bad file descriptor) [pid 3882] close(15) = -1 EBADF (Bad file descriptor) [pid 3882] close(16) = -1 EBADF (Bad file descriptor) [pid 3882] close(17) = -1 EBADF (Bad file descriptor) [pid 3882] close(18) = -1 EBADF (Bad file descriptor) [pid 3882] close(19) = -1 EBADF (Bad file descriptor) [pid 3882] close(20) = -1 EBADF (Bad file descriptor) [pid 3882] close(21) = -1 EBADF (Bad file descriptor) [pid 3882] close(22) = -1 EBADF (Bad file descriptor) [pid 3882] close(23) = -1 EBADF (Bad file descriptor) [pid 3882] close(24) = -1 EBADF (Bad file descriptor) [pid 3882] close(25) = -1 EBADF (Bad file descriptor) [pid 3882] close(26) = -1 EBADF (Bad file descriptor) [pid 3882] close(27) = -1 EBADF (Bad file descriptor) [pid 3882] close(28) = -1 EBADF (Bad file descriptor) [pid 3882] close(29) = -1 EBADF (Bad file descriptor) [pid 3882] exit_group(0) = ? [pid 3882] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=280, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./278", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./278", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./278/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./278/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./278/binderfs") = 0 [pid 3603] umount2("./278/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./278/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./278/cgroup") = 0 [pid 3603] umount2("./278/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./278/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./278/cgroup.net") = 0 [pid 3603] umount2("./278/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./278/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./278/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./278") = 0 [pid 3603] mkdir("./279", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3883 attached , child_tidptr=0x5555567b05d0) = 281 [pid 3883] chdir("./279") = 0 [pid 3883] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3883] setpgid(0, 0) = 0 [pid 3883] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3883] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3883] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3883] write(3, "1000", 4) = 4 [pid 3883] close(3) = 0 [pid 3883] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3883] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3883] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3883] gettid() = 281 [pid 3883] process_vm_writev(281, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3883] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3883] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3883] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3883] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3883] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3883] close(3) = 0 [pid 3883] close(4) = 0 [pid 3883] close(5) = -1 EBADF (Bad file descriptor) [pid 3883] close(6) = -1 EBADF (Bad file descriptor) [pid 3883] close(7) = -1 EBADF (Bad file descriptor) [pid 3883] close(8) = -1 EBADF (Bad file descriptor) [pid 3883] close(9) = -1 EBADF (Bad file descriptor) [pid 3883] close(10) = -1 EBADF (Bad file descriptor) [pid 3883] close(11) = -1 EBADF (Bad file descriptor) [pid 3883] close(12) = -1 EBADF (Bad file descriptor) [pid 3883] close(13) = -1 EBADF (Bad file descriptor) [pid 3883] close(14) = -1 EBADF (Bad file descriptor) [pid 3883] close(15) = -1 EBADF (Bad file descriptor) [pid 3883] close(16) = -1 EBADF (Bad file descriptor) [pid 3883] close(17) = -1 EBADF (Bad file descriptor) [pid 3883] close(18) = -1 EBADF (Bad file descriptor) [pid 3883] close(19) = -1 EBADF (Bad file descriptor) [pid 3883] close(20) = -1 EBADF (Bad file descriptor) [pid 3883] close(21) = -1 EBADF (Bad file descriptor) [pid 3883] close(22) = -1 EBADF (Bad file descriptor) [pid 3883] close(23) = -1 EBADF (Bad file descriptor) [pid 3883] close(24) = -1 EBADF (Bad file descriptor) [pid 3883] close(25) = -1 EBADF (Bad file descriptor) [pid 3883] close(26) = -1 EBADF (Bad file descriptor) [pid 3883] close(27) = -1 EBADF (Bad file descriptor) [pid 3883] close(28) = -1 EBADF (Bad file descriptor) [pid 3883] close(29) = -1 EBADF (Bad file descriptor) [pid 3883] exit_group(0) = ? [pid 3883] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=281, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./279", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./279", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./279/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./279/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./279/binderfs") = 0 [pid 3603] umount2("./279/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./279/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./279/cgroup") = 0 [pid 3603] umount2("./279/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./279/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./279/cgroup.net") = 0 [pid 3603] umount2("./279/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./279/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./279/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./279") = 0 [pid 3603] mkdir("./280", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3884 attached , child_tidptr=0x5555567b05d0) = 282 [pid 3884] chdir("./280") = 0 [pid 3884] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3884] setpgid(0, 0) = 0 [pid 3884] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3884] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3884] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3884] write(3, "1000", 4) = 4 [pid 3884] close(3) = 0 [pid 3884] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3884] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3884] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3884] gettid() = 282 [pid 3884] process_vm_writev(282, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3884] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3884] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3884] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3884] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3884] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3884] close(3) = 0 [pid 3884] close(4) = 0 [pid 3884] close(5) = -1 EBADF (Bad file descriptor) [pid 3884] close(6) = -1 EBADF (Bad file descriptor) [pid 3884] close(7) = -1 EBADF (Bad file descriptor) [pid 3884] close(8) = -1 EBADF (Bad file descriptor) [pid 3884] close(9) = -1 EBADF (Bad file descriptor) [pid 3884] close(10) = -1 EBADF (Bad file descriptor) [pid 3884] close(11) = -1 EBADF (Bad file descriptor) [pid 3884] close(12) = -1 EBADF (Bad file descriptor) [pid 3884] close(13) = -1 EBADF (Bad file descriptor) [pid 3884] close(14) = -1 EBADF (Bad file descriptor) [pid 3884] close(15) = -1 EBADF (Bad file descriptor) [pid 3884] close(16) = -1 EBADF (Bad file descriptor) [pid 3884] close(17) = -1 EBADF (Bad file descriptor) [pid 3884] close(18) = -1 EBADF (Bad file descriptor) [pid 3884] close(19) = -1 EBADF (Bad file descriptor) [pid 3884] close(20) = -1 EBADF (Bad file descriptor) [pid 3884] close(21) = -1 EBADF (Bad file descriptor) [pid 3884] close(22) = -1 EBADF (Bad file descriptor) [pid 3884] close(23) = -1 EBADF (Bad file descriptor) [pid 3884] close(24) = -1 EBADF (Bad file descriptor) [pid 3884] close(25) = -1 EBADF (Bad file descriptor) [pid 3884] close(26) = -1 EBADF (Bad file descriptor) [pid 3884] close(27) = -1 EBADF (Bad file descriptor) [pid 3884] close(28) = -1 EBADF (Bad file descriptor) [pid 3884] close(29) = -1 EBADF (Bad file descriptor) [pid 3884] exit_group(0) = ? [pid 3884] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=282, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./280", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./280", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./280/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./280/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./280/binderfs") = 0 [pid 3603] umount2("./280/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./280/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./280/cgroup") = 0 [pid 3603] umount2("./280/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./280/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./280/cgroup.net") = 0 [pid 3603] umount2("./280/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./280/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./280/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./280") = 0 [pid 3603] mkdir("./281", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3885 attached [pid 3885] chdir("./281") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 283 [pid 3885] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3885] setpgid(0, 0) = 0 [pid 3885] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3885] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3885] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3885] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3885] write(3, "1000", 4) = 4 [pid 3885] close(3) = 0 [pid 3885] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3885] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3885] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3885] gettid() = 283 [pid 3885] process_vm_writev(283, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3885] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3885] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3885] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3885] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3885] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3885] close(3) = 0 [pid 3885] close(4) = 0 [pid 3885] close(5) = -1 EBADF (Bad file descriptor) [pid 3885] close(6) = -1 EBADF (Bad file descriptor) [pid 3885] close(7) = -1 EBADF (Bad file descriptor) [pid 3885] close(8) = -1 EBADF (Bad file descriptor) [pid 3885] close(9) = -1 EBADF (Bad file descriptor) [pid 3885] close(10) = -1 EBADF (Bad file descriptor) [pid 3885] close(11) = -1 EBADF (Bad file descriptor) [pid 3885] close(12) = -1 EBADF (Bad file descriptor) [pid 3885] close(13) = -1 EBADF (Bad file descriptor) [pid 3885] close(14) = -1 EBADF (Bad file descriptor) [pid 3885] close(15) = -1 EBADF (Bad file descriptor) [pid 3885] close(16) = -1 EBADF (Bad file descriptor) [pid 3885] close(17) = -1 EBADF (Bad file descriptor) [pid 3885] close(18) = -1 EBADF (Bad file descriptor) [pid 3885] close(19) = -1 EBADF (Bad file descriptor) [pid 3885] close(20) = -1 EBADF (Bad file descriptor) [pid 3885] close(21) = -1 EBADF (Bad file descriptor) [pid 3885] close(22) = -1 EBADF (Bad file descriptor) [pid 3885] close(23) = -1 EBADF (Bad file descriptor) [pid 3885] close(24) = -1 EBADF (Bad file descriptor) [pid 3885] close(25) = -1 EBADF (Bad file descriptor) [pid 3885] close(26) = -1 EBADF (Bad file descriptor) [pid 3885] close(27) = -1 EBADF (Bad file descriptor) [pid 3885] close(28) = -1 EBADF (Bad file descriptor) [pid 3885] close(29) = -1 EBADF (Bad file descriptor) [pid 3885] exit_group(0) = ? [pid 3885] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=283, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./281", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./281", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./281/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./281/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./281/binderfs") = 0 [pid 3603] umount2("./281/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./281/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./281/cgroup") = 0 [pid 3603] umount2("./281/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./281/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./281/cgroup.net") = 0 [pid 3603] umount2("./281/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./281/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./281/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./281") = 0 [pid 3603] mkdir("./282", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3886 attached , child_tidptr=0x5555567b05d0) = 284 [pid 3886] chdir("./282") = 0 [pid 3886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3886] setpgid(0, 0) = 0 [pid 3886] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3886] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3886] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3886] write(3, "1000", 4) = 4 [pid 3886] close(3) = 0 [pid 3886] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3886] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3886] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3886] gettid() = 284 [pid 3886] process_vm_writev(284, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3886] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3886] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3886] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3886] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3886] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3886] close(3) = 0 [pid 3886] close(4) = 0 [pid 3886] close(5) = -1 EBADF (Bad file descriptor) [pid 3886] close(6) = -1 EBADF (Bad file descriptor) [pid 3886] close(7) = -1 EBADF (Bad file descriptor) [pid 3886] close(8) = -1 EBADF (Bad file descriptor) [pid 3886] close(9) = -1 EBADF (Bad file descriptor) [pid 3886] close(10) = -1 EBADF (Bad file descriptor) [pid 3886] close(11) = -1 EBADF (Bad file descriptor) [pid 3886] close(12) = -1 EBADF (Bad file descriptor) [pid 3886] close(13) = -1 EBADF (Bad file descriptor) [pid 3886] close(14) = -1 EBADF (Bad file descriptor) [pid 3886] close(15) = -1 EBADF (Bad file descriptor) [pid 3886] close(16) = -1 EBADF (Bad file descriptor) [pid 3886] close(17) = -1 EBADF (Bad file descriptor) [pid 3886] close(18) = -1 EBADF (Bad file descriptor) [pid 3886] close(19) = -1 EBADF (Bad file descriptor) [pid 3886] close(20) = -1 EBADF (Bad file descriptor) [pid 3886] close(21) = -1 EBADF (Bad file descriptor) [pid 3886] close(22) = -1 EBADF (Bad file descriptor) [pid 3886] close(23) = -1 EBADF (Bad file descriptor) [pid 3886] close(24) = -1 EBADF (Bad file descriptor) [pid 3886] close(25) = -1 EBADF (Bad file descriptor) [pid 3886] close(26) = -1 EBADF (Bad file descriptor) [pid 3886] close(27) = -1 EBADF (Bad file descriptor) [pid 3886] close(28) = -1 EBADF (Bad file descriptor) [pid 3886] close(29) = -1 EBADF (Bad file descriptor) [pid 3886] exit_group(0) = ? [pid 3886] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=284, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./282", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./282", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./282/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./282/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./282/binderfs") = 0 [pid 3603] umount2("./282/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./282/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./282/cgroup") = 0 [pid 3603] umount2("./282/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./282/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./282/cgroup.net") = 0 [pid 3603] umount2("./282/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./282/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./282/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./282") = 0 [pid 3603] mkdir("./283", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3887 attached , child_tidptr=0x5555567b05d0) = 285 [pid 3887] chdir("./283") = 0 [pid 3887] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3887] setpgid(0, 0) = 0 [pid 3887] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3887] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3887] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3887] write(3, "1000", 4) = 4 [pid 3887] close(3) = 0 [pid 3887] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3887] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3887] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3887] gettid() = 285 [pid 3887] process_vm_writev(285, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3887] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3887] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3887] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3887] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3887] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3887] close(3) = 0 [pid 3887] close(4) = 0 [pid 3887] close(5) = -1 EBADF (Bad file descriptor) [pid 3887] close(6) = -1 EBADF (Bad file descriptor) [pid 3887] close(7) = -1 EBADF (Bad file descriptor) [pid 3887] close(8) = -1 EBADF (Bad file descriptor) [pid 3887] close(9) = -1 EBADF (Bad file descriptor) [pid 3887] close(10) = -1 EBADF (Bad file descriptor) [pid 3887] close(11) = -1 EBADF (Bad file descriptor) [pid 3887] close(12) = -1 EBADF (Bad file descriptor) [pid 3887] close(13) = -1 EBADF (Bad file descriptor) [pid 3887] close(14) = -1 EBADF (Bad file descriptor) [pid 3887] close(15) = -1 EBADF (Bad file descriptor) [pid 3887] close(16) = -1 EBADF (Bad file descriptor) [pid 3887] close(17) = -1 EBADF (Bad file descriptor) [pid 3887] close(18) = -1 EBADF (Bad file descriptor) [pid 3887] close(19) = -1 EBADF (Bad file descriptor) [pid 3887] close(20) = -1 EBADF (Bad file descriptor) [pid 3887] close(21) = -1 EBADF (Bad file descriptor) [pid 3887] close(22) = -1 EBADF (Bad file descriptor) [pid 3887] close(23) = -1 EBADF (Bad file descriptor) [pid 3887] close(24) = -1 EBADF (Bad file descriptor) [pid 3887] close(25) = -1 EBADF (Bad file descriptor) [pid 3887] close(26) = -1 EBADF (Bad file descriptor) [pid 3887] close(27) = -1 EBADF (Bad file descriptor) [pid 3887] close(28) = -1 EBADF (Bad file descriptor) [pid 3887] close(29) = -1 EBADF (Bad file descriptor) [pid 3887] exit_group(0) = ? [pid 3887] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=285, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./283", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./283", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./283/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./283/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./283/binderfs") = 0 [pid 3603] umount2("./283/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./283/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./283/cgroup") = 0 [pid 3603] umount2("./283/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./283/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./283/cgroup.net") = 0 [pid 3603] umount2("./283/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./283/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./283/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./283") = 0 [pid 3603] mkdir("./284", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3888 attached , child_tidptr=0x5555567b05d0) = 286 [pid 3888] chdir("./284") = 0 [pid 3888] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3888] setpgid(0, 0) = 0 [pid 3888] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3888] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3888] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3888] write(3, "1000", 4) = 4 [pid 3888] close(3) = 0 [pid 3888] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3888] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3888] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3888] gettid() = 286 [pid 3888] process_vm_writev(286, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3888] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3888] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3888] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3888] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3888] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3888] close(3) = 0 [pid 3888] close(4) = 0 [pid 3888] close(5) = -1 EBADF (Bad file descriptor) [pid 3888] close(6) = -1 EBADF (Bad file descriptor) [pid 3888] close(7) = -1 EBADF (Bad file descriptor) [pid 3888] close(8) = -1 EBADF (Bad file descriptor) [pid 3888] close(9) = -1 EBADF (Bad file descriptor) [pid 3888] close(10) = -1 EBADF (Bad file descriptor) [pid 3888] close(11) = -1 EBADF (Bad file descriptor) [pid 3888] close(12) = -1 EBADF (Bad file descriptor) [pid 3888] close(13) = -1 EBADF (Bad file descriptor) [pid 3888] close(14) = -1 EBADF (Bad file descriptor) [pid 3888] close(15) = -1 EBADF (Bad file descriptor) [pid 3888] close(16) = -1 EBADF (Bad file descriptor) [pid 3888] close(17) = -1 EBADF (Bad file descriptor) [pid 3888] close(18) = -1 EBADF (Bad file descriptor) [pid 3888] close(19) = -1 EBADF (Bad file descriptor) [pid 3888] close(20) = -1 EBADF (Bad file descriptor) [pid 3888] close(21) = -1 EBADF (Bad file descriptor) [pid 3888] close(22) = -1 EBADF (Bad file descriptor) [pid 3888] close(23) = -1 EBADF (Bad file descriptor) [pid 3888] close(24) = -1 EBADF (Bad file descriptor) [pid 3888] close(25) = -1 EBADF (Bad file descriptor) [pid 3888] close(26) = -1 EBADF (Bad file descriptor) [pid 3888] close(27) = -1 EBADF (Bad file descriptor) [pid 3888] close(28) = -1 EBADF (Bad file descriptor) [pid 3888] close(29) = -1 EBADF (Bad file descriptor) [pid 3888] exit_group(0) = ? [pid 3888] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=286, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./284", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./284", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./284/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./284/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./284/binderfs") = 0 [pid 3603] umount2("./284/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./284/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./284/cgroup") = 0 [pid 3603] umount2("./284/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./284/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./284/cgroup.net") = 0 [pid 3603] umount2("./284/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./284/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./284/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./284") = 0 [pid 3603] mkdir("./285", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3889 attached , child_tidptr=0x5555567b05d0) = 287 [pid 3889] chdir("./285") = 0 [pid 3889] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3889] setpgid(0, 0) = 0 [pid 3889] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3889] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3889] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3889] write(3, "1000", 4) = 4 [pid 3889] close(3) = 0 [pid 3889] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3889] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3889] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3889] gettid() = 287 [pid 3889] process_vm_writev(287, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3889] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3889] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3889] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3889] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3889] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3889] close(3) = 0 [pid 3889] close(4) = 0 [pid 3889] close(5) = -1 EBADF (Bad file descriptor) [pid 3889] close(6) = -1 EBADF (Bad file descriptor) [pid 3889] close(7) = -1 EBADF (Bad file descriptor) [pid 3889] close(8) = -1 EBADF (Bad file descriptor) [pid 3889] close(9) = -1 EBADF (Bad file descriptor) [pid 3889] close(10) = -1 EBADF (Bad file descriptor) [pid 3889] close(11) = -1 EBADF (Bad file descriptor) [pid 3889] close(12) = -1 EBADF (Bad file descriptor) [pid 3889] close(13) = -1 EBADF (Bad file descriptor) [pid 3889] close(14) = -1 EBADF (Bad file descriptor) [pid 3889] close(15) = -1 EBADF (Bad file descriptor) [pid 3889] close(16) = -1 EBADF (Bad file descriptor) [pid 3889] close(17) = -1 EBADF (Bad file descriptor) [pid 3889] close(18) = -1 EBADF (Bad file descriptor) [pid 3889] close(19) = -1 EBADF (Bad file descriptor) [pid 3889] close(20) = -1 EBADF (Bad file descriptor) [pid 3889] close(21) = -1 EBADF (Bad file descriptor) [pid 3889] close(22) = -1 EBADF (Bad file descriptor) [pid 3889] close(23) = -1 EBADF (Bad file descriptor) [pid 3889] close(24) = -1 EBADF (Bad file descriptor) [pid 3889] close(25) = -1 EBADF (Bad file descriptor) [pid 3889] close(26) = -1 EBADF (Bad file descriptor) [pid 3889] close(27) = -1 EBADF (Bad file descriptor) [pid 3889] close(28) = -1 EBADF (Bad file descriptor) [pid 3889] close(29) = -1 EBADF (Bad file descriptor) [pid 3889] exit_group(0) = ? [pid 3889] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=287, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./285", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./285", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./285/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./285/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./285/binderfs") = 0 [pid 3603] umount2("./285/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./285/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./285/cgroup") = 0 [pid 3603] umount2("./285/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./285/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./285/cgroup.net") = 0 [pid 3603] umount2("./285/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./285/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./285/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./285") = 0 [pid 3603] mkdir("./286", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3890 attached [pid 3890] chdir("./286") = 0 [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 288 [pid 3890] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3890] setpgid(0, 0) = 0 [pid 3890] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3890] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3890] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3890] write(3, "1000", 4) = 4 [pid 3890] close(3) = 0 [pid 3890] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3890] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3890] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3890] gettid() = 288 [pid 3890] process_vm_writev(288, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3890] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3890] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3890] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3890] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3890] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3890] close(3) = 0 [pid 3890] close(4) = 0 [pid 3890] close(5) = -1 EBADF (Bad file descriptor) [pid 3890] close(6) = -1 EBADF (Bad file descriptor) [pid 3890] close(7) = -1 EBADF (Bad file descriptor) [pid 3890] close(8) = -1 EBADF (Bad file descriptor) [pid 3890] close(9) = -1 EBADF (Bad file descriptor) [pid 3890] close(10) = -1 EBADF (Bad file descriptor) [pid 3890] close(11) = -1 EBADF (Bad file descriptor) [pid 3890] close(12) = -1 EBADF (Bad file descriptor) [pid 3890] close(13) = -1 EBADF (Bad file descriptor) [pid 3890] close(14) = -1 EBADF (Bad file descriptor) [pid 3890] close(15) = -1 EBADF (Bad file descriptor) [pid 3890] close(16) = -1 EBADF (Bad file descriptor) [pid 3890] close(17) = -1 EBADF (Bad file descriptor) [pid 3890] close(18) = -1 EBADF (Bad file descriptor) [pid 3890] close(19) = -1 EBADF (Bad file descriptor) [pid 3890] close(20) = -1 EBADF (Bad file descriptor) [pid 3890] close(21) = -1 EBADF (Bad file descriptor) [pid 3890] close(22) = -1 EBADF (Bad file descriptor) [pid 3890] close(23) = -1 EBADF (Bad file descriptor) [pid 3890] close(24) = -1 EBADF (Bad file descriptor) [pid 3890] close(25) = -1 EBADF (Bad file descriptor) [pid 3890] close(26) = -1 EBADF (Bad file descriptor) [pid 3890] close(27) = -1 EBADF (Bad file descriptor) [pid 3890] close(28) = -1 EBADF (Bad file descriptor) [pid 3890] close(29) = -1 EBADF (Bad file descriptor) [pid 3890] exit_group(0) = ? [pid 3890] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=288, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./286", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./286", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./286/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./286/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./286/binderfs") = 0 [pid 3603] umount2("./286/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./286/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./286/cgroup") = 0 [pid 3603] umount2("./286/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./286/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./286/cgroup.net") = 0 [pid 3603] umount2("./286/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./286/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./286/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./286") = 0 [pid 3603] mkdir("./287", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3891 attached , child_tidptr=0x5555567b05d0) = 289 [pid 3891] chdir("./287") = 0 [pid 3891] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3891] setpgid(0, 0) = 0 [pid 3891] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3891] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3891] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3891] write(3, "1000", 4) = 4 [pid 3891] close(3) = 0 [pid 3891] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3891] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3891] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3891] gettid() = 289 [pid 3891] process_vm_writev(289, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3891] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3891] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3891] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3891] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3891] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3891] close(3) = 0 [pid 3891] close(4) = 0 [pid 3891] close(5) = -1 EBADF (Bad file descriptor) [pid 3891] close(6) = -1 EBADF (Bad file descriptor) [pid 3891] close(7) = -1 EBADF (Bad file descriptor) [pid 3891] close(8) = -1 EBADF (Bad file descriptor) [pid 3891] close(9) = -1 EBADF (Bad file descriptor) [pid 3891] close(10) = -1 EBADF (Bad file descriptor) [pid 3891] close(11) = -1 EBADF (Bad file descriptor) [pid 3891] close(12) = -1 EBADF (Bad file descriptor) [pid 3891] close(13) = -1 EBADF (Bad file descriptor) [pid 3891] close(14) = -1 EBADF (Bad file descriptor) [pid 3891] close(15) = -1 EBADF (Bad file descriptor) [pid 3891] close(16) = -1 EBADF (Bad file descriptor) [pid 3891] close(17) = -1 EBADF (Bad file descriptor) [pid 3891] close(18) = -1 EBADF (Bad file descriptor) [pid 3891] close(19) = -1 EBADF (Bad file descriptor) [pid 3891] close(20) = -1 EBADF (Bad file descriptor) [pid 3891] close(21) = -1 EBADF (Bad file descriptor) [pid 3891] close(22) = -1 EBADF (Bad file descriptor) [pid 3891] close(23) = -1 EBADF (Bad file descriptor) [pid 3891] close(24) = -1 EBADF (Bad file descriptor) [pid 3891] close(25) = -1 EBADF (Bad file descriptor) [pid 3891] close(26) = -1 EBADF (Bad file descriptor) [pid 3891] close(27) = -1 EBADF (Bad file descriptor) [pid 3891] close(28) = -1 EBADF (Bad file descriptor) [pid 3891] close(29) = -1 EBADF (Bad file descriptor) [pid 3891] exit_group(0) = ? [pid 3891] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=289, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./287", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./287", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./287/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./287/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./287/binderfs") = 0 [pid 3603] umount2("./287/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./287/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./287/cgroup") = 0 [pid 3603] umount2("./287/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./287/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./287/cgroup.net") = 0 [pid 3603] umount2("./287/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./287/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./287/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./287") = 0 [pid 3603] mkdir("./288", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3892 attached , child_tidptr=0x5555567b05d0) = 290 [pid 3892] chdir("./288") = 0 [pid 3892] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3892] setpgid(0, 0) = 0 [pid 3892] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3892] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3892] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3892] write(3, "1000", 4) = 4 [pid 3892] close(3) = 0 [pid 3892] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3892] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3892] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3892] gettid() = 290 [pid 3892] process_vm_writev(290, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3892] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3892] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3892] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3892] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3892] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3892] close(3) = 0 [pid 3892] close(4) = 0 [pid 3892] close(5) = -1 EBADF (Bad file descriptor) [pid 3892] close(6) = -1 EBADF (Bad file descriptor) [pid 3892] close(7) = -1 EBADF (Bad file descriptor) [pid 3892] close(8) = -1 EBADF (Bad file descriptor) [pid 3892] close(9) = -1 EBADF (Bad file descriptor) [pid 3892] close(10) = -1 EBADF (Bad file descriptor) [pid 3892] close(11) = -1 EBADF (Bad file descriptor) [pid 3892] close(12) = -1 EBADF (Bad file descriptor) [pid 3892] close(13) = -1 EBADF (Bad file descriptor) [pid 3892] close(14) = -1 EBADF (Bad file descriptor) [pid 3892] close(15) = -1 EBADF (Bad file descriptor) [pid 3892] close(16) = -1 EBADF (Bad file descriptor) [pid 3892] close(17) = -1 EBADF (Bad file descriptor) [pid 3892] close(18) = -1 EBADF (Bad file descriptor) [pid 3892] close(19) = -1 EBADF (Bad file descriptor) [pid 3892] close(20) = -1 EBADF (Bad file descriptor) [pid 3892] close(21) = -1 EBADF (Bad file descriptor) [pid 3892] close(22) = -1 EBADF (Bad file descriptor) [pid 3892] close(23) = -1 EBADF (Bad file descriptor) [pid 3892] close(24) = -1 EBADF (Bad file descriptor) [pid 3892] close(25) = -1 EBADF (Bad file descriptor) [pid 3892] close(26) = -1 EBADF (Bad file descriptor) [pid 3892] close(27) = -1 EBADF (Bad file descriptor) [pid 3892] close(28) = -1 EBADF (Bad file descriptor) [pid 3892] close(29) = -1 EBADF (Bad file descriptor) [pid 3892] exit_group(0) = ? [pid 3892] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=290, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./288", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./288", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./288/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./288/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./288/binderfs") = 0 [pid 3603] umount2("./288/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./288/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./288/cgroup") = 0 [pid 3603] umount2("./288/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./288/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./288/cgroup.net") = 0 [pid 3603] umount2("./288/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./288/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./288/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./288") = 0 [pid 3603] mkdir("./289", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3893 attached , child_tidptr=0x5555567b05d0) = 291 [pid 3893] chdir("./289") = 0 [pid 3893] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3893] setpgid(0, 0) = 0 [pid 3893] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3893] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3893] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3893] write(3, "1000", 4) = 4 [pid 3893] close(3) = 0 [pid 3893] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3893] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3893] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3893] gettid() = 291 [pid 3893] process_vm_writev(291, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3893] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3893] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3893] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3893] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3893] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3893] close(3) = 0 [pid 3893] close(4) = 0 [pid 3893] close(5) = -1 EBADF (Bad file descriptor) [pid 3893] close(6) = -1 EBADF (Bad file descriptor) [pid 3893] close(7) = -1 EBADF (Bad file descriptor) [pid 3893] close(8) = -1 EBADF (Bad file descriptor) [pid 3893] close(9) = -1 EBADF (Bad file descriptor) [pid 3893] close(10) = -1 EBADF (Bad file descriptor) [pid 3893] close(11) = -1 EBADF (Bad file descriptor) [pid 3893] close(12) = -1 EBADF (Bad file descriptor) [pid 3893] close(13) = -1 EBADF (Bad file descriptor) [pid 3893] close(14) = -1 EBADF (Bad file descriptor) [pid 3893] close(15) = -1 EBADF (Bad file descriptor) [pid 3893] close(16) = -1 EBADF (Bad file descriptor) [pid 3893] close(17) = -1 EBADF (Bad file descriptor) [pid 3893] close(18) = -1 EBADF (Bad file descriptor) [pid 3893] close(19) = -1 EBADF (Bad file descriptor) [pid 3893] close(20) = -1 EBADF (Bad file descriptor) [pid 3893] close(21) = -1 EBADF (Bad file descriptor) [pid 3893] close(22) = -1 EBADF (Bad file descriptor) [pid 3893] close(23) = -1 EBADF (Bad file descriptor) [pid 3893] close(24) = -1 EBADF (Bad file descriptor) [pid 3893] close(25) = -1 EBADF (Bad file descriptor) [pid 3893] close(26) = -1 EBADF (Bad file descriptor) [pid 3893] close(27) = -1 EBADF (Bad file descriptor) [pid 3893] close(28) = -1 EBADF (Bad file descriptor) [pid 3893] close(29) = -1 EBADF (Bad file descriptor) [pid 3893] exit_group(0) = ? [pid 3893] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=291, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./289", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./289", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./289/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./289/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./289/binderfs") = 0 [pid 3603] umount2("./289/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./289/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./289/cgroup") = 0 [pid 3603] umount2("./289/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./289/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./289/cgroup.net") = 0 [pid 3603] umount2("./289/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./289/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./289/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./289") = 0 [pid 3603] mkdir("./290", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3894 attached , child_tidptr=0x5555567b05d0) = 292 [pid 3894] chdir("./290") = 0 [pid 3894] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3894] setpgid(0, 0) = 0 [pid 3894] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3894] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3894] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3894] write(3, "1000", 4) = 4 [pid 3894] close(3) = 0 [pid 3894] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3894] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3894] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3894] gettid() = 292 [pid 3894] process_vm_writev(292, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3894] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3894] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3894] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3894] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3894] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3894] close(3) = 0 [pid 3894] close(4) = 0 [pid 3894] close(5) = -1 EBADF (Bad file descriptor) [pid 3894] close(6) = -1 EBADF (Bad file descriptor) [pid 3894] close(7) = -1 EBADF (Bad file descriptor) [pid 3894] close(8) = -1 EBADF (Bad file descriptor) [pid 3894] close(9) = -1 EBADF (Bad file descriptor) [pid 3894] close(10) = -1 EBADF (Bad file descriptor) [pid 3894] close(11) = -1 EBADF (Bad file descriptor) [pid 3894] close(12) = -1 EBADF (Bad file descriptor) [pid 3894] close(13) = -1 EBADF (Bad file descriptor) [pid 3894] close(14) = -1 EBADF (Bad file descriptor) [pid 3894] close(15) = -1 EBADF (Bad file descriptor) [pid 3894] close(16) = -1 EBADF (Bad file descriptor) [pid 3894] close(17) = -1 EBADF (Bad file descriptor) [pid 3894] close(18) = -1 EBADF (Bad file descriptor) [pid 3894] close(19) = -1 EBADF (Bad file descriptor) [pid 3894] close(20) = -1 EBADF (Bad file descriptor) [pid 3894] close(21) = -1 EBADF (Bad file descriptor) [pid 3894] close(22) = -1 EBADF (Bad file descriptor) [pid 3894] close(23) = -1 EBADF (Bad file descriptor) [pid 3894] close(24) = -1 EBADF (Bad file descriptor) [pid 3894] close(25) = -1 EBADF (Bad file descriptor) [pid 3894] close(26) = -1 EBADF (Bad file descriptor) [pid 3894] close(27) = -1 EBADF (Bad file descriptor) [pid 3894] close(28) = -1 EBADF (Bad file descriptor) [pid 3894] close(29) = -1 EBADF (Bad file descriptor) [pid 3894] exit_group(0) = ? [pid 3894] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=292, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./290", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./290", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./290/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./290/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./290/binderfs") = 0 [pid 3603] umount2("./290/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./290/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./290/cgroup") = 0 [pid 3603] umount2("./290/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./290/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./290/cgroup.net") = 0 [pid 3603] umount2("./290/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./290/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./290/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./290") = 0 [pid 3603] mkdir("./291", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3895 attached , child_tidptr=0x5555567b05d0) = 293 [pid 3895] chdir("./291") = 0 [pid 3895] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3895] setpgid(0, 0) = 0 [pid 3895] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3895] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3895] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3895] write(3, "1000", 4) = 4 [pid 3895] close(3) = 0 [pid 3895] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3895] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3895] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3895] gettid() = 293 [pid 3895] process_vm_writev(293, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3895] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3895] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3895] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3895] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3895] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3895] close(3) = 0 [pid 3895] close(4) = 0 [pid 3895] close(5) = -1 EBADF (Bad file descriptor) [pid 3895] close(6) = -1 EBADF (Bad file descriptor) [pid 3895] close(7) = -1 EBADF (Bad file descriptor) [pid 3895] close(8) = -1 EBADF (Bad file descriptor) [pid 3895] close(9) = -1 EBADF (Bad file descriptor) [pid 3895] close(10) = -1 EBADF (Bad file descriptor) [pid 3895] close(11) = -1 EBADF (Bad file descriptor) [pid 3895] close(12) = -1 EBADF (Bad file descriptor) [pid 3895] close(13) = -1 EBADF (Bad file descriptor) [pid 3895] close(14) = -1 EBADF (Bad file descriptor) [pid 3895] close(15) = -1 EBADF (Bad file descriptor) [pid 3895] close(16) = -1 EBADF (Bad file descriptor) [pid 3895] close(17) = -1 EBADF (Bad file descriptor) [pid 3895] close(18) = -1 EBADF (Bad file descriptor) [pid 3895] close(19) = -1 EBADF (Bad file descriptor) [pid 3895] close(20) = -1 EBADF (Bad file descriptor) [pid 3895] close(21) = -1 EBADF (Bad file descriptor) [pid 3895] close(22) = -1 EBADF (Bad file descriptor) [pid 3895] close(23) = -1 EBADF (Bad file descriptor) [pid 3895] close(24) = -1 EBADF (Bad file descriptor) [pid 3895] close(25) = -1 EBADF (Bad file descriptor) [pid 3895] close(26) = -1 EBADF (Bad file descriptor) [pid 3895] close(27) = -1 EBADF (Bad file descriptor) [pid 3895] close(28) = -1 EBADF (Bad file descriptor) [pid 3895] close(29) = -1 EBADF (Bad file descriptor) [pid 3895] exit_group(0) = ? [pid 3895] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=293, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3603] umount2("./291", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./291", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./291/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./291/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./291/binderfs") = 0 [pid 3603] umount2("./291/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./291/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./291/cgroup") = 0 [pid 3603] umount2("./291/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./291/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./291/cgroup.net") = 0 [pid 3603] umount2("./291/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./291/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./291/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./291") = 0 [pid 3603] mkdir("./292", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3896 attached , child_tidptr=0x5555567b05d0) = 294 [pid 3896] chdir("./292") = 0 [pid 3896] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3896] setpgid(0, 0) = 0 [pid 3896] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3896] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3896] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3896] write(3, "1000", 4) = 4 [pid 3896] close(3) = 0 [pid 3896] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3896] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3896] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3896] gettid() = 294 [pid 3896] process_vm_writev(294, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3896] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3896] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3896] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3896] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3896] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3896] close(3) = 0 [pid 3896] close(4) = 0 [pid 3896] close(5) = -1 EBADF (Bad file descriptor) [pid 3896] close(6) = -1 EBADF (Bad file descriptor) [pid 3896] close(7) = -1 EBADF (Bad file descriptor) [pid 3896] close(8) = -1 EBADF (Bad file descriptor) [pid 3896] close(9) = -1 EBADF (Bad file descriptor) [pid 3896] close(10) = -1 EBADF (Bad file descriptor) [pid 3896] close(11) = -1 EBADF (Bad file descriptor) [pid 3896] close(12) = -1 EBADF (Bad file descriptor) [pid 3896] close(13) = -1 EBADF (Bad file descriptor) [pid 3896] close(14) = -1 EBADF (Bad file descriptor) [pid 3896] close(15) = -1 EBADF (Bad file descriptor) [pid 3896] close(16) = -1 EBADF (Bad file descriptor) [pid 3896] close(17) = -1 EBADF (Bad file descriptor) [pid 3896] close(18) = -1 EBADF (Bad file descriptor) [pid 3896] close(19) = -1 EBADF (Bad file descriptor) [pid 3896] close(20) = -1 EBADF (Bad file descriptor) [pid 3896] close(21) = -1 EBADF (Bad file descriptor) [pid 3896] close(22) = -1 EBADF (Bad file descriptor) [pid 3896] close(23) = -1 EBADF (Bad file descriptor) [pid 3896] close(24) = -1 EBADF (Bad file descriptor) [pid 3896] close(25) = -1 EBADF (Bad file descriptor) [pid 3896] close(26) = -1 EBADF (Bad file descriptor) [pid 3896] close(27) = -1 EBADF (Bad file descriptor) [pid 3896] close(28) = -1 EBADF (Bad file descriptor) [pid 3896] close(29) = -1 EBADF (Bad file descriptor) [pid 3896] exit_group(0) = ? [pid 3896] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=294, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./292", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./292", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./292/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./292/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./292/binderfs") = 0 [pid 3603] umount2("./292/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./292/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./292/cgroup") = 0 [pid 3603] umount2("./292/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./292/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./292/cgroup.net") = 0 [pid 3603] umount2("./292/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./292/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./292/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./292") = 0 [pid 3603] mkdir("./293", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3897 attached , child_tidptr=0x5555567b05d0) = 295 [pid 3897] chdir("./293") = 0 [pid 3897] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3897] setpgid(0, 0) = 0 [pid 3897] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3897] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3897] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3897] write(3, "1000", 4) = 4 [pid 3897] close(3) = 0 [pid 3897] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3897] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3897] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3897] gettid() = 295 [pid 3897] process_vm_writev(295, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3897] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3897] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3897] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3897] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3897] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3897] close(3) = 0 [pid 3897] close(4) = 0 [pid 3897] close(5) = -1 EBADF (Bad file descriptor) [pid 3897] close(6) = -1 EBADF (Bad file descriptor) [pid 3897] close(7) = -1 EBADF (Bad file descriptor) [pid 3897] close(8) = -1 EBADF (Bad file descriptor) [pid 3897] close(9) = -1 EBADF (Bad file descriptor) [pid 3897] close(10) = -1 EBADF (Bad file descriptor) [pid 3897] close(11) = -1 EBADF (Bad file descriptor) [pid 3897] close(12) = -1 EBADF (Bad file descriptor) [pid 3897] close(13) = -1 EBADF (Bad file descriptor) [pid 3897] close(14) = -1 EBADF (Bad file descriptor) [pid 3897] close(15) = -1 EBADF (Bad file descriptor) [pid 3897] close(16) = -1 EBADF (Bad file descriptor) [pid 3897] close(17) = -1 EBADF (Bad file descriptor) [pid 3897] close(18) = -1 EBADF (Bad file descriptor) [pid 3897] close(19) = -1 EBADF (Bad file descriptor) [pid 3897] close(20) = -1 EBADF (Bad file descriptor) [pid 3897] close(21) = -1 EBADF (Bad file descriptor) [pid 3897] close(22) = -1 EBADF (Bad file descriptor) [pid 3897] close(23) = -1 EBADF (Bad file descriptor) [pid 3897] close(24) = -1 EBADF (Bad file descriptor) [pid 3897] close(25) = -1 EBADF (Bad file descriptor) [pid 3897] close(26) = -1 EBADF (Bad file descriptor) [pid 3897] close(27) = -1 EBADF (Bad file descriptor) [pid 3897] close(28) = -1 EBADF (Bad file descriptor) [pid 3897] close(29) = -1 EBADF (Bad file descriptor) [pid 3897] exit_group(0) = ? [pid 3897] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=295, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./293", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./293", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./293/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./293/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./293/binderfs") = 0 [pid 3603] umount2("./293/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./293/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./293/cgroup") = 0 [pid 3603] umount2("./293/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./293/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./293/cgroup.net") = 0 [pid 3603] umount2("./293/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./293/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./293/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./293") = 0 [pid 3603] mkdir("./294", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3898 attached [pid 3898] chdir("./294" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 296 [pid 3898] <... chdir resumed>) = 0 [pid 3898] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3898] setpgid(0, 0) = 0 [pid 3898] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3898] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3898] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3898] write(3, "1000", 4) = 4 [pid 3898] close(3) = 0 [pid 3898] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3898] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3898] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3898] gettid() = 296 [pid 3898] process_vm_writev(296, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3898] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3898] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3898] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3898] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3898] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3898] close(3) = 0 [pid 3898] close(4) = 0 [pid 3898] close(5) = -1 EBADF (Bad file descriptor) [pid 3898] close(6) = -1 EBADF (Bad file descriptor) [pid 3898] close(7) = -1 EBADF (Bad file descriptor) [pid 3898] close(8) = -1 EBADF (Bad file descriptor) [pid 3898] close(9) = -1 EBADF (Bad file descriptor) [pid 3898] close(10) = -1 EBADF (Bad file descriptor) [pid 3898] close(11) = -1 EBADF (Bad file descriptor) [pid 3898] close(12) = -1 EBADF (Bad file descriptor) [pid 3898] close(13) = -1 EBADF (Bad file descriptor) [pid 3898] close(14) = -1 EBADF (Bad file descriptor) [pid 3898] close(15) = -1 EBADF (Bad file descriptor) [pid 3898] close(16) = -1 EBADF (Bad file descriptor) [pid 3898] close(17) = -1 EBADF (Bad file descriptor) [pid 3898] close(18) = -1 EBADF (Bad file descriptor) [pid 3898] close(19) = -1 EBADF (Bad file descriptor) [pid 3898] close(20) = -1 EBADF (Bad file descriptor) [pid 3898] close(21) = -1 EBADF (Bad file descriptor) [pid 3898] close(22) = -1 EBADF (Bad file descriptor) [pid 3898] close(23) = -1 EBADF (Bad file descriptor) [pid 3898] close(24) = -1 EBADF (Bad file descriptor) [pid 3898] close(25) = -1 EBADF (Bad file descriptor) [pid 3898] close(26) = -1 EBADF (Bad file descriptor) [pid 3898] close(27) = -1 EBADF (Bad file descriptor) [pid 3898] close(28) = -1 EBADF (Bad file descriptor) [pid 3898] close(29) = -1 EBADF (Bad file descriptor) [pid 3898] exit_group(0) = ? [pid 3898] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=296, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./294", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./294", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./294/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./294/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./294/binderfs") = 0 [pid 3603] umount2("./294/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./294/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./294/cgroup") = 0 [pid 3603] umount2("./294/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./294/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./294/cgroup.net") = 0 [pid 3603] umount2("./294/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./294/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./294/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./294") = 0 [pid 3603] mkdir("./295", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3899 attached , child_tidptr=0x5555567b05d0) = 297 [pid 3899] chdir("./295") = 0 [pid 3899] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3899] setpgid(0, 0) = 0 [pid 3899] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3899] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3899] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3899] write(3, "1000", 4) = 4 [pid 3899] close(3) = 0 [pid 3899] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3899] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3899] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3899] gettid() = 297 [pid 3899] process_vm_writev(297, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3899] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3899] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3899] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3899] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3899] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3899] close(3) = 0 [pid 3899] close(4) = 0 [pid 3899] close(5) = -1 EBADF (Bad file descriptor) [pid 3899] close(6) = -1 EBADF (Bad file descriptor) [pid 3899] close(7) = -1 EBADF (Bad file descriptor) [pid 3899] close(8) = -1 EBADF (Bad file descriptor) [pid 3899] close(9) = -1 EBADF (Bad file descriptor) [pid 3899] close(10) = -1 EBADF (Bad file descriptor) [pid 3899] close(11) = -1 EBADF (Bad file descriptor) [pid 3899] close(12) = -1 EBADF (Bad file descriptor) [pid 3899] close(13) = -1 EBADF (Bad file descriptor) [pid 3899] close(14) = -1 EBADF (Bad file descriptor) [pid 3899] close(15) = -1 EBADF (Bad file descriptor) [pid 3899] close(16) = -1 EBADF (Bad file descriptor) [pid 3899] close(17) = -1 EBADF (Bad file descriptor) [pid 3899] close(18) = -1 EBADF (Bad file descriptor) [pid 3899] close(19) = -1 EBADF (Bad file descriptor) [pid 3899] close(20) = -1 EBADF (Bad file descriptor) [pid 3899] close(21) = -1 EBADF (Bad file descriptor) [pid 3899] close(22) = -1 EBADF (Bad file descriptor) [pid 3899] close(23) = -1 EBADF (Bad file descriptor) [pid 3899] close(24) = -1 EBADF (Bad file descriptor) [pid 3899] close(25) = -1 EBADF (Bad file descriptor) [pid 3899] close(26) = -1 EBADF (Bad file descriptor) [pid 3899] close(27) = -1 EBADF (Bad file descriptor) [pid 3899] close(28) = -1 EBADF (Bad file descriptor) [pid 3899] close(29) = -1 EBADF (Bad file descriptor) [pid 3899] exit_group(0) = ? [pid 3899] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=297, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./295", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./295", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./295/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./295/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./295/binderfs") = 0 [pid 3603] umount2("./295/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./295/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./295/cgroup") = 0 [pid 3603] umount2("./295/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./295/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./295/cgroup.net") = 0 [pid 3603] umount2("./295/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./295/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./295/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./295") = 0 [pid 3603] mkdir("./296", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3900 attached , child_tidptr=0x5555567b05d0) = 298 [pid 3900] chdir("./296") = 0 [pid 3900] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3900] setpgid(0, 0) = 0 [pid 3900] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3900] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3900] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3900] write(3, "1000", 4) = 4 [pid 3900] close(3) = 0 [pid 3900] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3900] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3900] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3900] gettid() = 298 [pid 3900] process_vm_writev(298, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3900] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3900] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3900] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3900] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3900] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3900] close(3) = 0 [pid 3900] close(4) = 0 [pid 3900] close(5) = -1 EBADF (Bad file descriptor) [pid 3900] close(6) = -1 EBADF (Bad file descriptor) [pid 3900] close(7) = -1 EBADF (Bad file descriptor) [pid 3900] close(8) = -1 EBADF (Bad file descriptor) [pid 3900] close(9) = -1 EBADF (Bad file descriptor) [pid 3900] close(10) = -1 EBADF (Bad file descriptor) [pid 3900] close(11) = -1 EBADF (Bad file descriptor) [pid 3900] close(12) = -1 EBADF (Bad file descriptor) [pid 3900] close(13) = -1 EBADF (Bad file descriptor) [pid 3900] close(14) = -1 EBADF (Bad file descriptor) [pid 3900] close(15) = -1 EBADF (Bad file descriptor) [pid 3900] close(16) = -1 EBADF (Bad file descriptor) [pid 3900] close(17) = -1 EBADF (Bad file descriptor) [pid 3900] close(18) = -1 EBADF (Bad file descriptor) [pid 3900] close(19) = -1 EBADF (Bad file descriptor) [pid 3900] close(20) = -1 EBADF (Bad file descriptor) [pid 3900] close(21) = -1 EBADF (Bad file descriptor) [pid 3900] close(22) = -1 EBADF (Bad file descriptor) [pid 3900] close(23) = -1 EBADF (Bad file descriptor) [pid 3900] close(24) = -1 EBADF (Bad file descriptor) [pid 3900] close(25) = -1 EBADF (Bad file descriptor) [pid 3900] close(26) = -1 EBADF (Bad file descriptor) [pid 3900] close(27) = -1 EBADF (Bad file descriptor) [pid 3900] close(28) = -1 EBADF (Bad file descriptor) [pid 3900] close(29) = -1 EBADF (Bad file descriptor) [pid 3900] exit_group(0) = ? [pid 3900] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=298, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./296", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./296", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./296/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./296/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./296/binderfs") = 0 [pid 3603] umount2("./296/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./296/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./296/cgroup") = 0 [pid 3603] umount2("./296/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./296/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./296/cgroup.net") = 0 [pid 3603] umount2("./296/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./296/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./296/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./296") = 0 [pid 3603] mkdir("./297", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3901 attached , child_tidptr=0x5555567b05d0) = 299 [pid 3901] chdir("./297") = 0 [pid 3901] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3901] setpgid(0, 0) = 0 [pid 3901] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3901] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3901] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3901] write(3, "1000", 4) = 4 [pid 3901] close(3) = 0 [pid 3901] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3901] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3901] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3901] gettid() = 299 [pid 3901] process_vm_writev(299, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3901] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3901] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3901] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3901] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3901] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3901] close(3) = 0 [pid 3901] close(4) = 0 [pid 3901] close(5) = -1 EBADF (Bad file descriptor) [pid 3901] close(6) = -1 EBADF (Bad file descriptor) [pid 3901] close(7) = -1 EBADF (Bad file descriptor) [pid 3901] close(8) = -1 EBADF (Bad file descriptor) [pid 3901] close(9) = -1 EBADF (Bad file descriptor) [pid 3901] close(10) = -1 EBADF (Bad file descriptor) [pid 3901] close(11) = -1 EBADF (Bad file descriptor) [pid 3901] close(12) = -1 EBADF (Bad file descriptor) [pid 3901] close(13) = -1 EBADF (Bad file descriptor) [pid 3901] close(14) = -1 EBADF (Bad file descriptor) [pid 3901] close(15) = -1 EBADF (Bad file descriptor) [pid 3901] close(16) = -1 EBADF (Bad file descriptor) [pid 3901] close(17) = -1 EBADF (Bad file descriptor) [pid 3901] close(18) = -1 EBADF (Bad file descriptor) [pid 3901] close(19) = -1 EBADF (Bad file descriptor) [pid 3901] close(20) = -1 EBADF (Bad file descriptor) [pid 3901] close(21) = -1 EBADF (Bad file descriptor) [pid 3901] close(22) = -1 EBADF (Bad file descriptor) [pid 3901] close(23) = -1 EBADF (Bad file descriptor) [pid 3901] close(24) = -1 EBADF (Bad file descriptor) [pid 3901] close(25) = -1 EBADF (Bad file descriptor) [pid 3901] close(26) = -1 EBADF (Bad file descriptor) [pid 3901] close(27) = -1 EBADF (Bad file descriptor) [pid 3901] close(28) = -1 EBADF (Bad file descriptor) [pid 3901] close(29) = -1 EBADF (Bad file descriptor) [pid 3901] exit_group(0) = ? [pid 3901] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=299, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./297", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./297", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./297/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./297/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./297/binderfs") = 0 [pid 3603] umount2("./297/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./297/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./297/cgroup") = 0 [pid 3603] umount2("./297/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./297/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./297/cgroup.net") = 0 [pid 3603] umount2("./297/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./297/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./297/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./297") = 0 [pid 3603] mkdir("./298", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 300 ./strace-static-x86_64: Process 3902 attached [pid 3902] chdir("./298") = 0 [pid 3902] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3902] setpgid(0, 0) = 0 [pid 3902] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3902] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3902] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3902] write(3, "1000", 4) = 4 [pid 3902] close(3) = 0 [pid 3902] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3902] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3902] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3902] gettid() = 300 [pid 3902] process_vm_writev(300, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3902] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3902] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3902] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3902] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3902] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3902] close(3) = 0 [pid 3902] close(4) = 0 [pid 3902] close(5) = -1 EBADF (Bad file descriptor) [pid 3902] close(6) = -1 EBADF (Bad file descriptor) [pid 3902] close(7) = -1 EBADF (Bad file descriptor) [pid 3902] close(8) = -1 EBADF (Bad file descriptor) [pid 3902] close(9) = -1 EBADF (Bad file descriptor) [pid 3902] close(10) = -1 EBADF (Bad file descriptor) [pid 3902] close(11) = -1 EBADF (Bad file descriptor) [pid 3902] close(12) = -1 EBADF (Bad file descriptor) [pid 3902] close(13) = -1 EBADF (Bad file descriptor) [pid 3902] close(14) = -1 EBADF (Bad file descriptor) [pid 3902] close(15) = -1 EBADF (Bad file descriptor) [pid 3902] close(16) = -1 EBADF (Bad file descriptor) [pid 3902] close(17) = -1 EBADF (Bad file descriptor) [pid 3902] close(18) = -1 EBADF (Bad file descriptor) [pid 3902] close(19) = -1 EBADF (Bad file descriptor) [pid 3902] close(20) = -1 EBADF (Bad file descriptor) [pid 3902] close(21) = -1 EBADF (Bad file descriptor) [pid 3902] close(22) = -1 EBADF (Bad file descriptor) [pid 3902] close(23) = -1 EBADF (Bad file descriptor) [pid 3902] close(24) = -1 EBADF (Bad file descriptor) [pid 3902] close(25) = -1 EBADF (Bad file descriptor) [pid 3902] close(26) = -1 EBADF (Bad file descriptor) [pid 3902] close(27) = -1 EBADF (Bad file descriptor) [pid 3902] close(28) = -1 EBADF (Bad file descriptor) [pid 3902] close(29) = -1 EBADF (Bad file descriptor) [pid 3902] exit_group(0) = ? [pid 3902] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=300, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./298", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./298", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./298/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./298/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./298/binderfs") = 0 [pid 3603] umount2("./298/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./298/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./298/cgroup") = 0 [pid 3603] umount2("./298/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./298/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./298/cgroup.net") = 0 [pid 3603] umount2("./298/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./298/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./298/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./298") = 0 [pid 3603] mkdir("./299", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3903 attached , child_tidptr=0x5555567b05d0) = 301 [pid 3903] chdir("./299") = 0 [pid 3903] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3903] setpgid(0, 0) = 0 [pid 3903] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3903] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3903] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3903] write(3, "1000", 4) = 4 [pid 3903] close(3) = 0 [pid 3903] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3903] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3903] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3903] gettid() = 301 [pid 3903] process_vm_writev(301, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3903] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3903] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3903] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3903] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3903] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3903] close(3) = 0 [pid 3903] close(4) = 0 [pid 3903] close(5) = -1 EBADF (Bad file descriptor) [pid 3903] close(6) = -1 EBADF (Bad file descriptor) [pid 3903] close(7) = -1 EBADF (Bad file descriptor) [pid 3903] close(8) = -1 EBADF (Bad file descriptor) [pid 3903] close(9) = -1 EBADF (Bad file descriptor) [pid 3903] close(10) = -1 EBADF (Bad file descriptor) [pid 3903] close(11) = -1 EBADF (Bad file descriptor) [pid 3903] close(12) = -1 EBADF (Bad file descriptor) [pid 3903] close(13) = -1 EBADF (Bad file descriptor) [pid 3903] close(14) = -1 EBADF (Bad file descriptor) [pid 3903] close(15) = -1 EBADF (Bad file descriptor) [pid 3903] close(16) = -1 EBADF (Bad file descriptor) [pid 3903] close(17) = -1 EBADF (Bad file descriptor) [pid 3903] close(18) = -1 EBADF (Bad file descriptor) [pid 3903] close(19) = -1 EBADF (Bad file descriptor) [pid 3903] close(20) = -1 EBADF (Bad file descriptor) [pid 3903] close(21) = -1 EBADF (Bad file descriptor) [pid 3903] close(22) = -1 EBADF (Bad file descriptor) [pid 3903] close(23) = -1 EBADF (Bad file descriptor) [pid 3903] close(24) = -1 EBADF (Bad file descriptor) [pid 3903] close(25) = -1 EBADF (Bad file descriptor) [pid 3903] close(26) = -1 EBADF (Bad file descriptor) [pid 3903] close(27) = -1 EBADF (Bad file descriptor) [pid 3903] close(28) = -1 EBADF (Bad file descriptor) [pid 3903] close(29) = -1 EBADF (Bad file descriptor) [pid 3903] exit_group(0) = ? [pid 3903] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=301, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./299", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./299", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./299/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./299/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./299/binderfs") = 0 [pid 3603] umount2("./299/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./299/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./299/cgroup") = 0 [pid 3603] umount2("./299/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./299/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./299/cgroup.net") = 0 [pid 3603] umount2("./299/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./299/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./299/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./299") = 0 [pid 3603] mkdir("./300", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3904 attached [pid 3904] chdir("./300" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 302 [pid 3904] <... chdir resumed>) = 0 [pid 3904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3904] setpgid(0, 0) = 0 [pid 3904] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3904] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3904] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3904] write(3, "1000", 4) = 4 [pid 3904] close(3) = 0 [pid 3904] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3904] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3904] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3904] gettid() = 302 [pid 3904] process_vm_writev(302, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3904] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3904] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3904] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3904] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3904] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3904] close(3) = 0 [pid 3904] close(4) = 0 [pid 3904] close(5) = -1 EBADF (Bad file descriptor) [pid 3904] close(6) = -1 EBADF (Bad file descriptor) [pid 3904] close(7) = -1 EBADF (Bad file descriptor) [pid 3904] close(8) = -1 EBADF (Bad file descriptor) [pid 3904] close(9) = -1 EBADF (Bad file descriptor) [pid 3904] close(10) = -1 EBADF (Bad file descriptor) [pid 3904] close(11) = -1 EBADF (Bad file descriptor) [pid 3904] close(12) = -1 EBADF (Bad file descriptor) [pid 3904] close(13) = -1 EBADF (Bad file descriptor) [pid 3904] close(14) = -1 EBADF (Bad file descriptor) [pid 3904] close(15) = -1 EBADF (Bad file descriptor) [pid 3904] close(16) = -1 EBADF (Bad file descriptor) [pid 3904] close(17) = -1 EBADF (Bad file descriptor) [pid 3904] close(18) = -1 EBADF (Bad file descriptor) [pid 3904] close(19) = -1 EBADF (Bad file descriptor) [pid 3904] close(20) = -1 EBADF (Bad file descriptor) [pid 3904] close(21) = -1 EBADF (Bad file descriptor) [pid 3904] close(22) = -1 EBADF (Bad file descriptor) [pid 3904] close(23) = -1 EBADF (Bad file descriptor) [pid 3904] close(24) = -1 EBADF (Bad file descriptor) [pid 3904] close(25) = -1 EBADF (Bad file descriptor) [pid 3904] close(26) = -1 EBADF (Bad file descriptor) [pid 3904] close(27) = -1 EBADF (Bad file descriptor) [pid 3904] close(28) = -1 EBADF (Bad file descriptor) [pid 3904] close(29) = -1 EBADF (Bad file descriptor) [pid 3904] exit_group(0) = ? [pid 3904] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=302, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./300", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./300", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./300/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./300/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./300/binderfs") = 0 [pid 3603] umount2("./300/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./300/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./300/cgroup") = 0 [pid 3603] umount2("./300/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./300/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./300/cgroup.net") = 0 [pid 3603] umount2("./300/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./300/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./300/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./300") = 0 [pid 3603] mkdir("./301", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555567b05d0) = 303 ./strace-static-x86_64: Process 3905 attached [pid 3905] chdir("./301") = 0 [pid 3905] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3905] setpgid(0, 0) = 0 [pid 3905] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3905] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3905] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3905] write(3, "1000", 4) = 4 [pid 3905] close(3) = 0 [pid 3905] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3905] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3905] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3905] gettid() = 303 [pid 3905] process_vm_writev(303, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3905] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3905] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3905] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3905] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3905] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3905] close(3) = 0 [pid 3905] close(4) = 0 [pid 3905] close(5) = -1 EBADF (Bad file descriptor) [pid 3905] close(6) = -1 EBADF (Bad file descriptor) [pid 3905] close(7) = -1 EBADF (Bad file descriptor) [pid 3905] close(8) = -1 EBADF (Bad file descriptor) [pid 3905] close(9) = -1 EBADF (Bad file descriptor) [pid 3905] close(10) = -1 EBADF (Bad file descriptor) [pid 3905] close(11) = -1 EBADF (Bad file descriptor) [pid 3905] close(12) = -1 EBADF (Bad file descriptor) [pid 3905] close(13) = -1 EBADF (Bad file descriptor) [pid 3905] close(14) = -1 EBADF (Bad file descriptor) [pid 3905] close(15) = -1 EBADF (Bad file descriptor) [pid 3905] close(16) = -1 EBADF (Bad file descriptor) [pid 3905] close(17) = -1 EBADF (Bad file descriptor) [pid 3905] close(18) = -1 EBADF (Bad file descriptor) [pid 3905] close(19) = -1 EBADF (Bad file descriptor) [pid 3905] close(20) = -1 EBADF (Bad file descriptor) [pid 3905] close(21) = -1 EBADF (Bad file descriptor) [pid 3905] close(22) = -1 EBADF (Bad file descriptor) [pid 3905] close(23) = -1 EBADF (Bad file descriptor) [pid 3905] close(24) = -1 EBADF (Bad file descriptor) [pid 3905] close(25) = -1 EBADF (Bad file descriptor) [pid 3905] close(26) = -1 EBADF (Bad file descriptor) [pid 3905] close(27) = -1 EBADF (Bad file descriptor) [pid 3905] close(28) = -1 EBADF (Bad file descriptor) [pid 3905] close(29) = -1 EBADF (Bad file descriptor) [pid 3905] exit_group(0) = ? [pid 3905] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=303, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./301", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./301", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./301/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./301/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./301/binderfs") = 0 [pid 3603] umount2("./301/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./301/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./301/cgroup") = 0 [pid 3603] umount2("./301/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./301/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./301/cgroup.net") = 0 [pid 3603] umount2("./301/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./301/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./301/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./301") = 0 [pid 3603] mkdir("./302", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3906 attached , child_tidptr=0x5555567b05d0) = 304 [pid 3906] chdir("./302") = 0 [pid 3906] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3906] setpgid(0, 0) = 0 [pid 3906] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3906] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3906] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3906] write(3, "1000", 4) = 4 [pid 3906] close(3) = 0 [pid 3906] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3906] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3906] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3906] gettid() = 304 [pid 3906] process_vm_writev(304, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3906] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3906] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3906] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3906] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3906] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3906] close(3) = 0 [pid 3906] close(4) = 0 [pid 3906] close(5) = -1 EBADF (Bad file descriptor) [pid 3906] close(6) = -1 EBADF (Bad file descriptor) [pid 3906] close(7) = -1 EBADF (Bad file descriptor) [pid 3906] close(8) = -1 EBADF (Bad file descriptor) [pid 3906] close(9) = -1 EBADF (Bad file descriptor) [pid 3906] close(10) = -1 EBADF (Bad file descriptor) [pid 3906] close(11) = -1 EBADF (Bad file descriptor) [pid 3906] close(12) = -1 EBADF (Bad file descriptor) [pid 3906] close(13) = -1 EBADF (Bad file descriptor) [pid 3906] close(14) = -1 EBADF (Bad file descriptor) [pid 3906] close(15) = -1 EBADF (Bad file descriptor) [pid 3906] close(16) = -1 EBADF (Bad file descriptor) [pid 3906] close(17) = -1 EBADF (Bad file descriptor) [pid 3906] close(18) = -1 EBADF (Bad file descriptor) [pid 3906] close(19) = -1 EBADF (Bad file descriptor) [pid 3906] close(20) = -1 EBADF (Bad file descriptor) [pid 3906] close(21) = -1 EBADF (Bad file descriptor) [pid 3906] close(22) = -1 EBADF (Bad file descriptor) [pid 3906] close(23) = -1 EBADF (Bad file descriptor) [pid 3906] close(24) = -1 EBADF (Bad file descriptor) [pid 3906] close(25) = -1 EBADF (Bad file descriptor) [pid 3906] close(26) = -1 EBADF (Bad file descriptor) [pid 3906] close(27) = -1 EBADF (Bad file descriptor) [pid 3906] close(28) = -1 EBADF (Bad file descriptor) [pid 3906] close(29) = -1 EBADF (Bad file descriptor) [pid 3906] exit_group(0) = ? [pid 3906] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=304, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] umount2("./302", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./302", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./302/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./302/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./302/binderfs") = 0 [pid 3603] umount2("./302/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./302/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./302/cgroup") = 0 [pid 3603] umount2("./302/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./302/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./302/cgroup.net") = 0 [pid 3603] umount2("./302/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./302/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./302/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./302") = 0 [pid 3603] mkdir("./303", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3907 attached [pid 3907] chdir("./303" [pid 3603] <... clone resumed>, child_tidptr=0x5555567b05d0) = 305 [pid 3907] <... chdir resumed>) = 0 [pid 3907] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3907] setpgid(0, 0) = 0 [pid 3907] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3907] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3907] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3907] write(3, "1000", 4) = 4 [pid 3907] close(3) = 0 [pid 3907] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3907] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3907] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3907] gettid() = 305 [pid 3907] process_vm_writev(305, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3907] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3907] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3907] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3907] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [pid 3907] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16) = -1 ENOMEM (Cannot allocate memory) [pid 3907] close(3) = 0 [pid 3907] close(4) = 0 [pid 3907] close(5) = -1 EBADF (Bad file descriptor) [pid 3907] close(6) = -1 EBADF (Bad file descriptor) [pid 3907] close(7) = -1 EBADF (Bad file descriptor) [pid 3907] close(8) = -1 EBADF (Bad file descriptor) [pid 3907] close(9) = -1 EBADF (Bad file descriptor) [pid 3907] close(10) = -1 EBADF (Bad file descriptor) [pid 3907] close(11) = -1 EBADF (Bad file descriptor) [pid 3907] close(12) = -1 EBADF (Bad file descriptor) [pid 3907] close(13) = -1 EBADF (Bad file descriptor) [pid 3907] close(14) = -1 EBADF (Bad file descriptor) [pid 3907] close(15) = -1 EBADF (Bad file descriptor) [pid 3907] close(16) = -1 EBADF (Bad file descriptor) [pid 3907] close(17) = -1 EBADF (Bad file descriptor) [pid 3907] close(18) = -1 EBADF (Bad file descriptor) [pid 3907] close(19) = -1 EBADF (Bad file descriptor) [pid 3907] close(20) = -1 EBADF (Bad file descriptor) [pid 3907] close(21) = -1 EBADF (Bad file descriptor) [pid 3907] close(22) = -1 EBADF (Bad file descriptor) [pid 3907] close(23) = -1 EBADF (Bad file descriptor) [pid 3907] close(24) = -1 EBADF (Bad file descriptor) [pid 3907] close(25) = -1 EBADF (Bad file descriptor) [pid 3907] close(26) = -1 EBADF (Bad file descriptor) [pid 3907] close(27) = -1 EBADF (Bad file descriptor) [pid 3907] close(28) = -1 EBADF (Bad file descriptor) [pid 3907] close(29) = -1 EBADF (Bad file descriptor) [pid 3907] exit_group(0) = ? [pid 3907] +++ exited with 0 +++ [pid 3603] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=305, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3603] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3603] umount2("./303", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] openat(AT_FDCWD, "./303", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3603] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 6 entries */, 32768) = 176 [pid 3603] umount2("./303/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./303/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 3603] unlink("./303/binderfs") = 0 [pid 3603] umount2("./303/cgroup", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./303/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}) = 0 [pid 3603] unlink("./303/cgroup") = 0 [pid 3603] umount2("./303/cgroup.net", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./303/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./303/cgroup.net") = 0 [pid 3603] umount2("./303/cgroup.cpu", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 3603] lstat("./303/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}) = 0 [pid 3603] unlink("./303/cgroup.cpu") = 0 [pid 3603] getdents64(3, 0x5555567b1620 /* 0 entries */, 32768) = 0 [pid 3603] close(3) = 0 [pid 3603] rmdir("./303") = 0 [pid 3603] mkdir("./304", 0777) = 0 [pid 3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3908 attached , child_tidptr=0x5555567b05d0) = 306 [pid 3908] chdir("./304") = 0 [pid 3908] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3908] setpgid(0, 0) = 0 [pid 3908] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 3908] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 3908] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 3908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3908] write(3, "1000", 4) = 4 [pid 3908] close(3) = 0 [pid 3908] symlink("/dev/binderfs", "./binderfs") = 0 [pid 3908] madvise(0x20a93000, 16384, MADV_HUGEPAGE) = 0 [pid 3908] mremap(0x20a96000, 4096, 8388608, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20130000) = 0x20130000 [pid 3908] gettid() = 306 [pid 3908] process_vm_writev(306, [{iov_base="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=247}], 1, [{iov_base=0x20217f28, iov_len=4294967118}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, ...], 570, 0) = 247 [pid 3908] io_uring_setup(24694, {flags=0, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32768, cq_entries=65536, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=1048896}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 3 [pid 3908] mmap(0x20290000, 1179968, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0) = 0x20290000 [pid 3908] mmap(0x2043b000, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE, 3, 0x10000000) = 0x2043b000 [pid 3908] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 4 [ 57.754360][ T3908] page:ffffea00018f0000 refcount:0 mapcount:0 mapping:0000000000000000 index:0x20200 pfn:0x63c00 [ 57.764972][ T3908] head:ffffea00018f0000 order:9 compound_mapcount:0 compound_pincount:0 [ 57.773278][ T3908] memcg:ffff888078d5c000 [ 57.777669][ T3908] anon flags: 0xfff0000009001d(locked|uptodate|dirty|lru|head|swapbacked|node=0|zone=1|lastcpupid=0x7ff) [ 57.788846][ T3908] raw: 00fff0000009001d ffffea0001a1ca08 ffffea00018f6c48 ffff88807f3eb221 [ 57.797506][ T3908] raw: 0000000000020200 0000000000000000 00000000ffffffff ffff888078d5c000 [ 57.806088][ T3908] page dumped because: VM_WARN_ON_ONCE_PAGE(page_tail->private != 0) [ 57.814132][ T3908] page_owner tracks the page as allocated [ 57.819829][ T3908] page last allocated via order 9, migratetype Movable, gfp_mask 0x3d24ca(GFP_TRANSHUGE|__GFP_NORETRY|__GFP_THISNODE), pid 3908, tgid 3908 (syz-executor315), ts 57738838372, free_ts 57484390861 [ 57.839172][ T3908] get_page_from_freelist+0x72b/0x7a0 [ 57.844534][ T3908] __alloc_pages+0x259/0x560 [ 57.849111][ T3908] __folio_alloc+0xf/0x30 [ 57.853425][ T3908] vma_alloc_folio+0x971/0xb60 [ 57.858171][ T3908] do_huge_pmd_anonymous_page+0x23a/0x600 [ 57.863876][ T3908] handle_mm_fault+0x15fd/0x3660 [ 57.868800][ T3908] __get_user_pages+0x4db/0x1200 [ 57.873738][ T3908] __get_user_pages_remote+0x1c2/0x750 [ 57.879186][ T3908] process_vm_rw_single_vec+0x224/0x630 [ 57.884723][ T3908] process_vm_rw+0x5a2/0x800 [ 57.889299][ T3908] __x64_sys_process_vm_writev+0xdc/0xf0 [ 57.894919][ T3908] do_syscall_64+0x2b/0x70 [ 57.899325][ T3908] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 57.905206][ T3908] page last free stack trace: [ 57.909859][ T3908] free_pcp_prepare+0x80c/0x8f0 [ 57.914701][ T3908] free_unref_page_list+0xb4/0x7b0 [ 57.919798][ T3908] release_pages+0x233a/0x25d0 [ 57.924548][ T3908] tlb_flush_mmu+0x850/0xa70 [ 57.929127][ T3908] tlb_finish_mmu+0xcb/0x200 [ 57.933706][ T3908] exit_mmap+0x2b1/0x670 [ 57.937937][ T3908] __mmput+0x114/0x3b0 [ 57.941992][ T3908] exit_mm+0x217/0x2f0 [ 57.946053][ T3908] do_exit+0x5e7/0x2070 [ 57.950193][ T3908] do_group_exit+0x1fd/0x2b0 [ 57.954767][ T3908] __x64_sys_exit_group+0x3b/0x40 [ 57.959777][ T3908] do_syscall_64+0x2b/0x70 [ 57.964181][ T3908] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 57.970159][ T3908] ------------[ cut here ]------------ [ 57.975596][ T3908] WARNING: CPU: 0 PID: 3908 at mm/huge_memory.c:2465 __split_huge_page_tail+0x81c/0x1080 [ 57.985390][ T3908] Modules linked in: [ 57.989271][ T3908] CPU: 0 PID: 3908 Comm: syz-executor315 Not tainted 6.1.0-rc1-syzkaller-00249-g4da34b7d175d #0 [ 57.999668][ T3908] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 58.009710][ T3908] RIP: 0010:__split_huge_page_tail+0x81c/0x1080 [ 58.015955][ T3908] Code: ff ff e8 57 a7 a6 ff 48 ff cb e9 1a fd ff ff e8 4a a7 a6 ff 4c 89 ef 48 c7 c6 80 5d bb 8a e8 6b f0 e3 ff c6 05 2f 20 30 0c 01 <0f> 0b e9 cb fb ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 29 f8 ff [ 58.035550][ T3908] RSP: 0018:ffffc900044b6ba8 EFLAGS: 00010046 [ 58.041620][ T3908] RAX: beb4e3f6a4108300 RBX: 1ffffd400031ed85 RCX: ffffffff8169255b [ 58.049597][ T3908] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e277d28 [ 58.057559][ T3908] RBP: ffffea00018f0008 R08: dffffc0000000000 R09: fffffbfff1c4efa6 [ 58.065521][ T3908] R10: fffffbfff1c4efa6 R11: 1ffffffff1c4efa5 R12: ffffea00018f6c00 [ 58.073483][ T3908] R13: ffffea00018f0000 R14: 1ffffd400031e001 R15: ffffea00018f6c28 [ 58.081439][ T3908] FS: 00005555567b0300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 58.090360][ T3908] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.096930][ T3908] CR2: 0000000020001304 CR3: 000000001d5c1000 CR4: 00000000003506f0 [ 58.104911][ T3908] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.112880][ T3908] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.120846][ T3908] Call Trace: [ 58.124119][ T3908] [ 58.127043][ T3908] __split_huge_page+0x403/0x1df0 [ 58.132069][ T3908] split_huge_page_to_list+0x101d/0x1c90 [ 58.137696][ T3908] ? can_split_folio+0x7a0/0x7a0 [ 58.142623][ T3908] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 58.148510][ T3908] ? _raw_spin_unlock+0x40/0x40 [ 58.153352][ T3908] deferred_split_scan+0x683/0x8b0 [ 58.158454][ T3908] ? deferred_split_count+0xd0/0xd0 [ 58.163639][ T3908] ? trace_mm_shrink_slab_start+0xf2/0x300 [ 58.169437][ T3908] do_shrink_slab+0x4e1/0xa00 [ 58.174107][ T3908] shrink_slab_memcg+0x2ec/0x630 [ 58.179044][ T3908] ? shrink_slab+0x340/0x340 [ 58.183626][ T3908] ? trace_mm_vmscan_memcg_softlimit_reclaim_begin+0x2b0/0x2b0 [ 58.191165][ T3908] shrink_slab+0xbe/0x340 [ 58.195489][ T3908] ? __might_sleep+0xc0/0xc0 [ 58.200073][ T3908] ? preempt_schedule+0xd9/0xe0 [ 58.204916][ T3908] ? fatal_signal_pending+0xa0/0xa0 [ 58.210121][ T3908] ? mem_cgroup_iter+0x356/0x480 [ 58.215065][ T3908] shrink_node_memcgs+0x3c3/0x770 [ 58.220097][ T3908] shrink_node+0x299/0x1050 [ 58.224598][ T3908] shrink_zones+0x4fb/0xc40 [ 58.229100][ T3908] ? allow_direct_reclaim+0x480/0x480 [ 58.234988][ T3908] ? _raw_spin_unlock+0x24/0x40 [ 58.241528][ T3908] do_try_to_free_pages+0x215/0xcd0 [ 58.247494][ T3908] ? rcu_read_lock_sched_held+0x5f/0x130 [ 58.253118][ T3908] ? __lock_acquire+0x1f60/0x1f60 [ 58.258140][ T3908] try_to_free_mem_cgroup_pages+0x3cb/0x6d0 [ 58.264028][ T3908] ? do_raw_spin_unlock+0x134/0x8a0 [ 58.269218][ T3908] ? trace_mm_vmscan_memcg_softlimit_reclaim_end+0x2b0/0x2b0 [ 58.276578][ T3908] ? psi_schedule_poll_work+0x190/0x190 [ 58.282115][ T3908] ? cgroup_file_notify+0x123/0x190 [ 58.287302][ T3908] try_charge_memcg+0x6a1/0x11f0 [ 58.292233][ T3908] ? rcu_read_lock_sched_held+0x5f/0x130 [ 58.297860][ T3908] ? __lock_acquire+0x1f60/0x1f60 [ 58.302876][ T3908] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 58.308932][ T3908] ? percpu_ref_put+0x150/0x150 [ 58.313771][ T3908] ? rcu_read_lock_sched_held+0x5f/0x130 [ 58.319393][ T3908] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 58.325362][ T3908] ? rcu_read_lock_sched_held+0x5f/0x130 [ 58.330984][ T3908] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 58.336954][ T3908] ? rcu_read_lock_sched_held+0x5f/0x130 [ 58.342577][ T3908] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 58.348545][ T3908] ? rcu_read_lock_sched_held+0x5f/0x130 [ 58.354176][ T3908] ? lock_acquire+0xa5/0x400 [ 58.358751][ T3908] ? lock_sock_nested+0x66/0xf0 [ 58.363588][ T3908] ? sk_setsockopt+0x4c2/0x32c0 [ 58.368431][ T3908] mem_cgroup_charge_skmem+0xa7/0x370 [ 58.373797][ T3908] ? print_irqtrace_events+0x220/0x220 [ 58.379247][ T3908] ? mem_cgroup_sk_free+0x80/0x80 [ 58.384296][ T3908] ? do_raw_spin_lock+0x148/0x360 [ 58.389356][ T3908] ? __bpf_trace_softirq+0x10/0x10 [ 58.394463][ T3908] ? __local_bh_enable_ip+0x163/0x1f0 [ 58.399858][ T3908] ? sk_setsockopt+0x4c2/0x32c0 [ 58.404738][ T3908] sock_reserve_memory+0x105/0x640 [ 58.409858][ T3908] sk_setsockopt+0x16bf/0x32c0 [ 58.414688][ T3908] ? sockopt_capable+0x60/0x60 [ 58.419470][ T3908] ? trace_lock_release+0x95/0x220 [ 58.424584][ T3908] ? lock_release+0x81/0x870 [ 58.429164][ T3908] ? _raw_spin_lock_irq+0xdb/0x110 [ 58.434263][ T3908] ? do_raw_spin_unlock+0x134/0x8a0 [ 58.439465][ T3908] ? __lock_acquire+0x1f60/0x1f60 [ 58.444479][ T3908] ? memset+0x1f/0x40 [ 58.448459][ T3908] ? print_irqtrace_events+0x220/0x220 [ 58.453909][ T3908] ? ptrace_stop+0x74d/0x970 [ 58.458489][ T3908] ? bpf_lsm_socket_setsockopt+0x5/0x10 [ 58.464027][ T3908] ? security_socket_setsockopt+0x9d/0xb0 [ 58.469740][ T3908] __sys_setsockopt+0x6ba/0xa00 [ 58.474583][ T3908] ? _raw_spin_unlock_irq+0x2a/0x40 [ 58.479771][ T3908] ? __ia32_sys_recv+0xb0/0xb0 [ 58.484538][ T3908] ? rcu_read_lock_sched_held+0x5f/0x130 [ 58.490161][ T3908] ? vtime_user_exit+0x2b2/0x3e0 [ 58.495091][ T3908] ? __ct_user_exit+0x81/0xe0 [ 58.499770][ T3908] __x64_sys_setsockopt+0xb1/0xc0 [ 58.504786][ T3908] do_syscall_64+0x2b/0x70 [ 58.509210][ T3908] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 58.515096][ T3908] RIP: 0033:0x7ff3a2ea8ee9 [ 58.519519][ T3908] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 58.539133][ T3908] RSP: 002b:00007ffd09efcd08 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 58.547540][ T3908] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff3a2ea8ee9 [ 58.555505][ T3908] RDX: 0000000000000049 RSI: 0000000000000001 RDI: 0000000000000004 [ 58.563471][ T3908] RBP: 0000000000000000 R08: 0000000000000010 R09: 00007ffd09efcd30 [ 58.571439][ T3908] R10: 0000000020000040 R11: 0000000000000246 R12: 00007ffd09efcd2c [ 58.579397][ T3908] R13: 00007ffd09efcd40 R14: 00007ffd09efcd80 R15: 0000000000000130 [ 58.587369][ T3908] [ 58.590378][ T3908] Kernel panic - not syncing: panic_on_warn set ... [ 58.596961][ T3908] CPU: 0 PID: 3908 Comm: syz-executor315 Not tainted 6.1.0-rc1-syzkaller-00249-g4da34b7d175d #0 [ 58.607356][ T3908] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 58.617399][ T3908] Call Trace: [ 58.620676][ T3908] [ 58.623596][ T3908] dump_stack_lvl+0x1e3/0x2cb [ 58.628296][ T3908] ? nf_tcp_handle_invalid+0x62e/0x62e [ 58.633756][ T3908] ? panic+0x766/0x766 [ 58.637840][ T3908] ? vscnprintf+0x59/0x80 [ 58.642173][ T3908] ? __split_huge_page_tail+0x750/0x1080 [ 58.647819][ T3908] panic+0x316/0x766 [ 58.651709][ T3908] ? __warn+0x131/0x220 [ 58.655858][ T3908] ? memcpy_page_flushcache+0xfc/0xfc [ 58.661227][ T3908] ? __split_huge_page_tail+0x81c/0x1080 [ 58.666853][ T3908] __warn+0x1fa/0x220 [ 58.670830][ T3908] ? __split_huge_page_tail+0x81c/0x1080 [ 58.676454][ T3908] report_bug+0x1b3/0x2d0 [ 58.680774][ T3908] handle_bug+0x3d/0x70 [ 58.684923][ T3908] exc_invalid_op+0x16/0x40 [ 58.689411][ T3908] asm_exc_invalid_op+0x16/0x20 [ 58.694255][ T3908] RIP: 0010:__split_huge_page_tail+0x81c/0x1080 [ 58.700590][ T3908] Code: ff ff e8 57 a7 a6 ff 48 ff cb e9 1a fd ff ff e8 4a a7 a6 ff 4c 89 ef 48 c7 c6 80 5d bb 8a e8 6b f0 e3 ff c6 05 2f 20 30 0c 01 <0f> 0b e9 cb fb ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 29 f8 ff [ 58.720183][ T3908] RSP: 0018:ffffc900044b6ba8 EFLAGS: 00010046 [ 58.726240][ T3908] RAX: beb4e3f6a4108300 RBX: 1ffffd400031ed85 RCX: ffffffff8169255b [ 58.734203][ T3908] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e277d28 [ 58.742162][ T3908] RBP: ffffea00018f0008 R08: dffffc0000000000 R09: fffffbfff1c4efa6 [ 58.750124][ T3908] R10: fffffbfff1c4efa6 R11: 1ffffffff1c4efa5 R12: ffffea00018f6c00 [ 58.758097][ T3908] R13: ffffea00018f0000 R14: 1ffffd400031e001 R15: ffffea00018f6c28 [ 58.766059][ T3908] ? trace_lock_release+0x5b/0x220 [ 58.771172][ T3908] ? __split_huge_page_tail+0x815/0x1080 [ 58.776811][ T3908] __split_huge_page+0x403/0x1df0 [ 58.781834][ T3908] split_huge_page_to_list+0x101d/0x1c90 [ 58.787474][ T3908] ? can_split_folio+0x7a0/0x7a0 [ 58.792405][ T3908] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 58.798291][ T3908] ? _raw_spin_unlock+0x40/0x40 [ 58.803136][ T3908] deferred_split_scan+0x683/0x8b0 [ 58.808245][ T3908] ? deferred_split_count+0xd0/0xd0 [ 58.813435][ T3908] ? trace_mm_shrink_slab_start+0xf2/0x300 [ 58.819231][ T3908] do_shrink_slab+0x4e1/0xa00 [ 58.823901][ T3908] shrink_slab_memcg+0x2ec/0x630 [ 58.828833][ T3908] ? shrink_slab+0x340/0x340 [ 58.833414][ T3908] ? trace_mm_vmscan_memcg_softlimit_reclaim_begin+0x2b0/0x2b0 [ 58.840948][ T3908] shrink_slab+0xbe/0x340 [ 58.845289][ T3908] ? __might_sleep+0xc0/0xc0 [ 58.849870][ T3908] ? preempt_schedule+0xd9/0xe0 [ 58.854721][ T3908] ? fatal_signal_pending+0xa0/0xa0 [ 58.859916][ T3908] ? mem_cgroup_iter+0x356/0x480 [ 58.864845][ T3908] shrink_node_memcgs+0x3c3/0x770 [ 58.869866][ T3908] shrink_node+0x299/0x1050 [ 58.874392][ T3908] shrink_zones+0x4fb/0xc40 [ 58.878902][ T3908] ? allow_direct_reclaim+0x480/0x480 [ 58.884306][ T3908] ? _raw_spin_unlock+0x24/0x40 [ 58.889152][ T3908] do_try_to_free_pages+0x215/0xcd0 [ 58.894338][ T3908] ? rcu_read_lock_sched_held+0x5f/0x130 [ 58.899962][ T3908] ? __lock_acquire+0x1f60/0x1f60 [ 58.904984][ T3908] try_to_free_mem_cgroup_pages+0x3cb/0x6d0 [ 58.910864][ T3908] ? do_raw_spin_unlock+0x134/0x8a0 [ 58.916055][ T3908] ? trace_mm_vmscan_memcg_softlimit_reclaim_end+0x2b0/0x2b0 [ 58.923422][ T3908] ? psi_schedule_poll_work+0x190/0x190 [ 58.928962][ T3908] ? cgroup_file_notify+0x123/0x190 [ 58.934162][ T3908] try_charge_memcg+0x6a1/0x11f0 [ 58.939114][ T3908] ? rcu_read_lock_sched_held+0x5f/0x130 [ 58.944746][ T3908] ? __lock_acquire+0x1f60/0x1f60 [ 58.949766][ T3908] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 58.956258][ T3908] ? percpu_ref_put+0x150/0x150 [ 58.961184][ T3908] ? rcu_read_lock_sched_held+0x5f/0x130 [ 58.966810][ T3908] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 58.972866][ T3908] ? rcu_read_lock_sched_held+0x5f/0x130 [ 58.978488][ T3908] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 58.984459][ T3908] ? rcu_read_lock_sched_held+0x5f/0x130 [ 58.990086][ T3908] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 58.996149][ T3908] ? rcu_read_lock_sched_held+0x5f/0x130 [ 59.001778][ T3908] ? lock_acquire+0xa5/0x400 [ 59.006384][ T3908] ? lock_sock_nested+0x66/0xf0 [ 59.011231][ T3908] ? sk_setsockopt+0x4c2/0x32c0 [ 59.016079][ T3908] mem_cgroup_charge_skmem+0xa7/0x370 [ 59.021449][ T3908] ? print_irqtrace_events+0x220/0x220 [ 59.026899][ T3908] ? mem_cgroup_sk_free+0x80/0x80 [ 59.031919][ T3908] ? do_raw_spin_lock+0x148/0x360 [ 59.036935][ T3908] ? __bpf_trace_softirq+0x10/0x10 [ 59.042041][ T3908] ? __local_bh_enable_ip+0x163/0x1f0 [ 59.047403][ T3908] ? sk_setsockopt+0x4c2/0x32c0 [ 59.052248][ T3908] sock_reserve_memory+0x105/0x640 [ 59.057361][ T3908] sk_setsockopt+0x16bf/0x32c0 [ 59.062123][ T3908] ? sockopt_capable+0x60/0x60 [ 59.066886][ T3908] ? trace_lock_release+0x95/0x220 [ 59.071993][ T3908] ? lock_release+0x81/0x870 [ 59.076574][ T3908] ? _raw_spin_lock_irq+0xdb/0x110 [ 59.081677][ T3908] ? do_raw_spin_unlock+0x134/0x8a0 [ 59.086879][ T3908] ? __lock_acquire+0x1f60/0x1f60 [ 59.091908][ T3908] ? memset+0x1f/0x40 [ 59.095878][ T3908] ? print_irqtrace_events+0x220/0x220 [ 59.101324][ T3908] ? ptrace_stop+0x74d/0x970 [ 59.105909][ T3908] ? bpf_lsm_socket_setsockopt+0x5/0x10 [ 59.111533][ T3908] ? security_socket_setsockopt+0x9d/0xb0 [ 59.117246][ T3908] __sys_setsockopt+0x6ba/0xa00 [ 59.122088][ T3908] ? _raw_spin_unlock_irq+0x2a/0x40 [ 59.127281][ T3908] ? __ia32_sys_recv+0xb0/0xb0 [ 59.132032][ T3908] ? rcu_read_lock_sched_held+0x5f/0x130 [ 59.137661][ T3908] ? vtime_user_exit+0x2b2/0x3e0 [ 59.142598][ T3908] ? __ct_user_exit+0x81/0xe0 [ 59.147270][ T3908] __x64_sys_setsockopt+0xb1/0xc0 [ 59.152302][ T3908] do_syscall_64+0x2b/0x70 [ 59.156717][ T3908] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 59.162602][ T3908] RIP: 0033:0x7ff3a2ea8ee9 [ 59.167017][ T3908] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 59.186612][ T3908] RSP: 002b:00007ffd09efcd08 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 59.195020][ T3908] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff3a2ea8ee9 [ 59.202984][ T3908] RDX: 0000000000000049 RSI: 0000000000000001 RDI: 0000000000000004 [ 59.210942][ T3908] RBP: 0000000000000000 R08: 0000000000000010 R09: 00007ffd09efcd30 [ 59.218902][ T3908] R10: 0000000020000040 R11: 0000000000000246 R12: 00007ffd09efcd2c [ 59.226876][ T3908] R13: 00007ffd09efcd40 R14: 00007ffd09efcd80 R15: 0000000000000130 [ 59.234846][ T3908] [ 59.238041][ T3908] Kernel Offset: disabled [ 59.242361][ T3908] Rebooting in 86400 seconds.. [pid 3908] setsockopt(4, SOL_SOCKET, SO_RESERVE_MEM, "\x00\x94\x35\x77\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16