./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1547259000 <...> Warning: Permanently added '10.128.1.153' (ED25519) to the list of known hosts. execve("./syz-executor1547259000", ["./syz-executor1547259000"], 0x7ffc8eda92a0 /* 10 vars */) = 0 brk(NULL) = 0x55556969f000 brk(0x55556969fd00) = 0x55556969fd00 arch_prctl(ARCH_SET_FS, 0x55556969f380) = 0 set_tid_address(0x55556969f650) = 5900 set_robust_list(0x55556969f660, 24) = 0 rseq(0x55556969fca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1547259000", 4096) = 28 getrandom("\x44\x06\xd4\xb5\xaf\x16\x0b\x71", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556969fd00 brk(0x5555696c0d00) = 0x5555696c0d00 brk(0x5555696c1000) = 0x5555696c1000 mprotect(0x7f4f3a18f000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5901 attached [pid 5901] set_robust_list(0x55556969f660, 24 [pid 5900] <... clone resumed>, child_tidptr=0x55556969f650) = 5901 [pid 5901] <... set_robust_list resumed>) = 0 [pid 5900] openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC) = 3 [pid 5900] write(3, "10000000000", 11) = 11 [pid 5900] close(3) = 0 [pid 5900] openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3 [pid 5900] write(3, "20", 2) = 2 [pid 5900] close(3) = 0 [pid 5900] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3 [pid 5900] write(3, "1", 1) = 1 [pid 5900] close(3) = 0 [pid 5900] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3 [pid 5900] write(3, "0", 1) = 1 [pid 5900] close(3) = 0 [pid 5900] openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3 [pid 5900] write(3, "0", 1) = 1 [pid 5900] close(3) = 0 [pid 5900] openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3 [pid 5900] write(3, "1", 1) = 1 [pid 5900] close(3) = 0 [pid 5900] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3 [pid 5900] write(3, "100", 3) = 3 [pid 5900] close(3) = 0 [pid 5900] openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3 [pid 5900] write(3, "0", 1) = 1 [pid 5900] close(3) = 0 [pid 5900] openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3 [pid 5900] write(3, "0", 1) = 1 [pid 5900] close(3) = 0 [pid 5900] openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3 [pid 5900] write(3, "7 4 1 3", 7) = 7 [pid 5900] close(3) = 0 [pid 5900] openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3 [pid 5900] write(3, "1", 1) = 1 [pid 5900] close(3) = 0 [pid 5900] openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3 [pid 5900] write(3, "1", 1) = 1 [pid 5900] close(3) = 0 [pid 5900] openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3 [pid 5900] write(3, "0", 1) = 1 [pid 5900] close(3) = 0 [pid 5900] openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3 [pid 5900] write(3, "5901", 4) = 4 [pid 5900] close(3) = 0 [pid 5900] kill(5901, SIGKILL) = 0 [pid 5901] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5901, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} --- mkdir("/syzcgroup", 0777) = 0 mkdir("/syzcgroup/unified", 0777) = 0 mount("none", "/syzcgroup/unified", "cgroup2", 0, NULL) = 0 chmod("/syzcgroup/unified", 0777) = 0 openat(AT_FDCWD, "/syzcgroup/unified/cgroup.subtree_control", O_WRONLY) = 3 write(3, "+cpu", 4) = 4 write(3, "+io", 3) = 3 write(3, "+pids", 5) = 5 close(3) = 0 mkdir("/syzcgroup/net", 0777) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "net") = -1 EINVAL (Invalid argument) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio") = 0 umount2("/syzcgroup/net", 0) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "devices") = 0 umount2("/syzcgroup/net", 0) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "blkio") = 0 [ 189.056846][ T5900] cgroup: Unknown subsys name 'net' 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) 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") = -1 EINVAL (Invalid argument) 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, "memory") = 0 umount2("/syzcgroup/cpu", 0) = 0 [ 189.243558][ T5900] cgroup: Unknown subsys name 'cpuset' [ 189.266647][ T5900] cgroup: Unknown subsys name 'rlimit' mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct,hugetlb,memory") = 0 chmod("/syzcgroup/cpu", 0777) = 0 openat(AT_FDCWD, "/syzcgroup/cpu/cgroup.clone_children", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/syzcgroup/cpu/cpuset.memory_pressure_enabled", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) mkdir("./syzkaller.kYtMND", 0700) = 0 chmod("./syzkaller.kYtMND", 0777) = 0 chdir("./syzkaller.kYtMND") = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5902 attached , child_tidptr=0x55556969f650) = 5902 [pid 5902] set_robust_list(0x55556969f660, 24) = 0 [pid 5902] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5902] getppid() = 0 [pid 5902] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5902] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5902] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5902] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5902] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5902] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5902] unshare(CLONE_NEWNS) = 0 [pid 5902] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5902] unshare(CLONE_NEWIPC) = 0 [pid 5902] unshare(CLONE_NEWCGROUP) = 0 [pid 5902] unshare(CLONE_NEWUTS) = 0 [pid 5902] unshare(CLONE_SYSVSEM) = 0 [pid 5902] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5902] write(3, "16777216", 8) = 8 [pid 5902] close(3) = 0 [pid 5902] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5902] write(3, "536870912", 9) = 9 [pid 5902] close(3) = 0 [pid 5902] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5902] write(3, "1024", 4) = 4 [pid 5902] close(3) = 0 [pid 5902] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5902] write(3, "8192", 4) = 4 [pid 5902] close(3) = 0 [pid 5902] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5902] write(3, "1024", 4) = 4 [pid 5902] close(3) = 0 [pid 5902] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5902] write(3, "1024", 4) = 4 [pid 5902] close(3) = 0 [pid 5902] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5902] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5902] close(3) = 0 [pid 5902] getpid() = 1 [pid 5902] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5918] set_robust_list(0x55556969f660, 24 [pid 5902] <... clone resumed>, child_tidptr=0x55556969f650) = 3 [pid 5918] <... set_robust_list resumed>) = 0 [pid 5918] chdir("./1") = 0 [pid 5918] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5918] setpgid(0, 0) = 0 [pid 5918] symlink("/syzcgroup/unified/syz0", "./cgroup") = 0 [pid 5918] symlink("/syzcgroup/cpu/syz0", "./cgroup.cpu") = 0 [pid 5918] symlink("/syzcgroup/net/syz0", "./cgroup.net") = 0 [pid 5918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5918] write(3, "1000", 4) = 4 [pid 5918] close(3) = 0 [pid 5918] read(200, 0x7ffd6a91dc20, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5918] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5918] write(1, "executing program\n", 18) = 18 [pid 5918] socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER) = 3 [pid 5918] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x14\x00\x00\x00\x10\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x20\x00\x00\x00\x00\x0a\x01\x03\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\xff\xfd\x09\x00\x01\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x40\x00\x00\x00\x03\x0a\x01\x02\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x09\x00\x03\x00\x73\x79\x7a\x32\x00\x00\x00\x00\x14\x00\x04\x80\x08\x00\x02\x40\x32\x65\x8a\xeb\x08\x00\x01\x40"..., iov_len=204}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 204 [pid 5918] write(200, "\xaa\xaa\xaa\xaa\xaa\xaa\xff\xff\xff\xff\xff\xff\x08\x00\x45\xec\x00\x28\x00\x00\x00\x00\x00\x06\xb9\xe5\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x4e\x29\x44\x43\x42\x41\x44\x43\x42\x41\x50\x16\x00\x01\x54\x7c\x00\x20", 54) = 54 [pid 5918] close(3) = 0 [ 210.886171][ C0] sched: DL replenish lagged too much [pid 5918] close(4) = -1 EBADF (Bad file descriptor) [pid 5918] close(5) = -1 EBADF (Bad file descriptor) [pid 5918] close(6) = -1 EBADF (Bad file descriptor) [pid 5918] close(7) = -1 EBADF (Bad file descriptor) [pid 5918] close(8) = -1 EBADF (Bad file descriptor) [pid 5918] close(9) = -1 EBADF (Bad file descriptor) [pid 5918] close(10) = -1 EBADF (Bad file descriptor) [pid 5918] close(11) = -1 EBADF (Bad file descriptor) [pid 5918] close(12) = -1 EBADF (Bad file descriptor) [pid 5918] close(13) = -1 EBADF (Bad file descriptor) [pid 5918] close(14) = -1 EBADF (Bad file descriptor) [pid 5918] close(15) = -1 EBADF (Bad file descriptor) [pid 5918] close(16) = -1 EBADF (Bad file descriptor) [pid 5918] close(17) = -1 EBADF (Bad file descriptor) [pid 5918] close(18) = -1 EBADF (Bad file descriptor) [pid 5918] close(19) = -1 EBADF (Bad file descriptor) [pid 5918] close(20) = -1 EBADF (Bad file descriptor) [pid 5918] close(21) = -1 EBADF (Bad file descriptor) [pid 5918] close(22) = -1 EBADF (Bad file descriptor) [pid 5918] close(23) = -1 EBADF (Bad file descriptor) [pid 5918] close(24) = -1 EBADF (Bad file descriptor) [pid 5918] close(25) = -1 EBADF (Bad file descriptor) [pid 5918] close(26) = -1 EBADF (Bad file descriptor) [pid 5918] close(27) = -1 EBADF (Bad file descriptor) [pid 5918] close(28) = -1 EBADF (Bad file descriptor) [pid 5918] close(29) = -1 EBADF (Bad file descriptor) [pid 5918] exit_group(0) = ? [pid 5918] +++ exited with 0 +++ [pid 5902] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5902] umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5902] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5902] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0 [pid 5902] getdents64(3, 0x5555696a06f0 /* 6 entries */, 32768) = 176 [pid 5902] umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5902] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5902] unlink("./1/binderfs") = 0 [pid 5902] umount2("./1/cgroup.net", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5902] newfstatat(AT_FDCWD, "./1/cgroup.net", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5902] unlink("./1/cgroup.net") = 0 [pid 5902] umount2("./1/cgroup.cpu", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5902] newfstatat(AT_FDCWD, "./1/cgroup.cpu", {st_mode=S_IFLNK|0777, st_size=19, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5902] unlink("./1/cgroup.cpu") = 0 [pid 5902] umount2("./1/cgroup", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5902] newfstatat(AT_FDCWD, "./1/cgroup", {st_mode=S_IFLNK|0777, st_size=23, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5902] unlink("./1/cgroup") = 0 [pid 5902] getdents64(3, 0x5555696a06f0 /* 0 entries */, 32768) = 0 [pid 5902] close(3) = 0 [pid 5902] rmdir("./1") = 0 [pid 5902] mkdir("./2", 0777) = 0 [ 432.799393][ T31] INFO: task kworker/0:0:9 blocked for more than 149 seconds.