// https://syzkaller.appspot.com/bug?id=d9c92411cacf0b049f730ff6c81863a685d159f2
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

static unsigned long long procid;

static __thread int clone_ongoing;
static __thread int skip_segv;
static __thread jmp_buf segv_env;

static void segv_handler(int sig, siginfo_t* info, void* ctx)
{
  if (__atomic_load_n(&clone_ongoing, __ATOMIC_RELAXED) != 0) {
    exit(sig);
  }
  uintptr_t addr = (uintptr_t)info->si_addr;
  const uintptr_t prog_start = 1 << 20;
  const uintptr_t prog_end = 100 << 20;
  int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0;
  int valid = addr < prog_start || addr > prog_end;
  if (skip && valid) {
    _longjmp(segv_env, 1);
  }
  exit(sig);
}

static void install_segv_handler(void)
{
  struct sigaction sa;
  memset(&sa, 0, sizeof(sa));
  sa.sa_handler = SIG_IGN;
  syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8);
  syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8);
  memset(&sa, 0, sizeof(sa));
  sa.sa_sigaction = segv_handler;
  sa.sa_flags = SA_NODEFER | SA_SIGINFO;
  sigaction(SIGSEGV, &sa, NULL);
  sigaction(SIGBUS, &sa, NULL);
}

#define NONFAILING(...)                                                        \
  ({                                                                           \
    int ok = 1;                                                                \
    __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    if (_setjmp(segv_env) == 0) {                                              \
      __VA_ARGS__;                                                             \
    } else                                                                     \
      ok = 0;                                                                  \
    __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    ok;                                                                        \
  })

static void sleep_ms(uint64_t ms)
{
  usleep(ms * 1000);
}

static uint64_t current_time_ms(void)
{
  struct timespec ts;
  if (clock_gettime(CLOCK_MONOTONIC, &ts))
    exit(1);
  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

static bool write_file(const char* file, const char* what, ...)
{
  char buf[1024];
  va_list args;
  va_start(args, what);
  vsnprintf(buf, sizeof(buf), what, args);
  va_end(args);
  buf[sizeof(buf) - 1] = 0;
  int len = strlen(buf);
  int fd = open(file, O_WRONLY | O_CLOEXEC);
  if (fd == -1)
    return false;
  if (write(fd, buf, len) != len) {
    int err = errno;
    close(fd);
    errno = err;
    return false;
  }
  close(fd);
  return true;
}

static long syz_open_dev(volatile long a0, volatile long a1, volatile long a2)
{
  if (a0 == 0xc || a0 == 0xb) {
    char buf[128];
    sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1,
            (uint8_t)a2);
    return open(buf, O_RDWR, 0);
  } else {
    unsigned long nb = a1;
    char buf[1024];
    char* hash;
    strncpy(buf, (char*)a0, sizeof(buf) - 1);
    buf[sizeof(buf) - 1] = 0;
    while ((hash = strchr(buf, '#'))) {
      *hash = '0' + (char)(nb % 10);
      nb /= 10;
    }
    return open(buf, a2 & ~O_CREAT, 0);
  }
}

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  for (int i = 0; i < 100; i++) {
    if (waitpid(-1, status, WNOHANG | __WALL) == pid)
      return;
    usleep(1000);
  }
  DIR* dir = opendir("/sys/fs/fuse/connections");
  if (dir) {
    for (;;) {
      struct dirent* ent = readdir(dir);
      if (!ent)
        break;
      if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
        continue;
      char abort[300];
      snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort",
               ent->d_name);
      int fd = open(abort, O_WRONLY);
      if (fd == -1) {
        continue;
      }
      if (write(fd, abort, 1) < 0) {
      }
      close(fd);
    }
    closedir(dir);
  } else {
  }
  while (waitpid(-1, status, __WALL) != pid) {
  }
}

static void setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  write_file("/proc/self/oom_score_adj", "1000");
}

static void setup_sysctl()
{
  int cad_pid = fork();
  if (cad_pid < 0)
    exit(1);
  if (cad_pid == 0) {
    for (;;)
      sleep(100);
  }
  char tmppid[32];
  snprintf(tmppid, sizeof(tmppid), "%d", cad_pid);
  struct {
    const char* name;
    const char* data;
  } files[] = {
      {"/sys/kernel/debug/x86/nmi_longest_ns", "10000000000"},
      {"/proc/sys/kernel/hung_task_check_interval_secs", "20"},
      {"/proc/sys/net/core/bpf_jit_kallsyms", "1"},
      {"/proc/sys/net/core/bpf_jit_harden", "0"},
      {"/proc/sys/kernel/kptr_restrict", "0"},
      {"/proc/sys/kernel/softlockup_all_cpu_backtrace", "1"},
      {"/proc/sys/fs/mount-max", "100"},
      {"/proc/sys/vm/oom_dump_tasks", "0"},
      {"/proc/sys/debug/exception-trace", "0"},
      {"/proc/sys/kernel/printk", "7 4 1 3"},
      {"/proc/sys/kernel/keys/gc_delay", "1"},
      {"/proc/sys/vm/oom_kill_allocating_task", "1"},
      {"/sys/kernel/debug/failslab/task-filter", "Y"},
      {"/sys/kernel/debug/fail_page_alloc/task-filter", "Y"},
      {"/sys/kernel/debug/fail_futex/task-filter", "Y"},
      {"/sys/kernel/debug/fail_usercopy/task-filter", "Y"},
      {"/sys/kernel/debug/fail_make_request/task-filter", "Y"},
      {"/sys/kernel/debug/fail_io_timeout/task-filter", "Y"},
      {"/sys/kernel/debug/fail_iommufd/task-filter", "Y"},
      {"/proc/sys/kernel/ctrl-alt-del", "0"},
      {"/proc/sys/kernel/cad_pid", tmppid},
  };
  for (size_t i = 0; i < sizeof(files) / sizeof(files[0]); i++) {
    if (!write_file(files[i].name, files[i].data)) {
    }
  }
  kill(cad_pid, SIGKILL);
  while (waitpid(cad_pid, NULL, 0) != cad_pid)
    ;
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      setup_test();
      execute_one();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      sleep_ms(10);
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

uint64_t r[10] = {0xffffffffffffffff, 0xffffffffffffffff,
                  0xffffffffffffffff, 0xffffffffffffffff,
                  0xffffffffffffffff, 0x0,
                  0xffffffffffffffff, 0x0,
                  0xffffffffffffffff, 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  socket$inet6_tcp arguments: [
  //    domain: const = 0xa (8 bytes)
  //    type: const = 0x1 (8 bytes)
  //    proto: const = 0x0 (4 bytes)
  //  ]
  //  returns sock_tcp6
  res = syscall(__NR_socket, /*domain=*/0xaul, /*type=*/1ul, /*proto=*/0);
  if (res != -1)
    r[0] = res;
  //  mkdir arguments: [
  //    path: ptr[in, buffer] {
  //      buffer: {2e 2f 73 79 73 00} (length 0x6)
  //    }
  //    mode: open_mode = 0x0 (8 bytes)
  //  ]
  NONFAILING(memcpy((void*)0x200000000540, "./sys\000", 6));
  syscall(__NR_mkdir, /*path=*/0x200000000540ul, /*mode=*/0ul);
  //  mount arguments: [
  //    src: nil
  //    dst: ptr[in, buffer] {
  //      buffer: {2e 2f 73 79 73 00} (length 0x6)
  //    }
  //    type: ptr[in, buffer] {
  //      buffer: {73 79 73 66 73 00} (length 0x6)
  //    }
  //    flags: mount_flags = 0x0 (8 bytes)
  //    data: nil
  //  ]
  NONFAILING(memcpy((void*)0x200000000000, "./sys\000", 6));
  NONFAILING(memcpy((void*)0x200000000040, "sysfs\000", 6));
  syscall(__NR_mount, /*src=*/0ul, /*dst=*/0x200000000000ul,
          /*type=*/0x200000000040ul, /*flags=*/0ul, /*data=*/0ul);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 73 79 73 2f 62 75 73 2f 70 63 69 2f 64 65 76 69 63 65
  //      73 2f 30 30 30 30 3a 30 30 3a 30 31 2e 30 2f 72 65 6d 6f 76 65 00}
  //      (length 0x2a)
  //    }
  //    flags: open_flags = 0x1 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  NONFAILING(memcpy((void*)0x200000000080,
                    "./sys/bus/pci/devices/0000:00:01.0/remove\000", 42));
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000080ul,
                /*flags=O_WRONLY*/ 1, /*mode=*/0);
  if (res != -1)
    r[1] = res;
  //  openat$sw_sync_info arguments: [
  //    fd: const = 0xffffffffffffff9c (8 bytes)
  //    file: ptr[in, buffer] {
  //      buffer: {2f 73 79 73 2f 6b 65 72 6e 65 6c 2f 64 65 62 75 67 2f 73 79
  //      6e 63 2f 69 6e 66 6f 00} (length 0x1c)
  //    }
  //    flags: open_flags = 0x0 (4 bytes)
  //    mode: const = 0x0 (2 bytes)
  //  ]
  //  returns fd
  NONFAILING(
      memcpy((void*)0x2000000002c0, "/sys/kernel/debug/sync/info\000", 28));
  res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul,
                /*file=*/0x2000000002c0ul, /*flags=*/0, /*mode=*/0);
  if (res != -1)
    r[2] = res;
  //  close arguments: [
  //    fd: fd (resource)
  //  ]
  syscall(__NR_close, /*fd=*/r[2]);
  //  syz_open_dev$dri arguments: [
  //    dev: ptr[in, buffer] {
  //      buffer: {2f 64 65 76 2f 64 72 69 2f 63 61 72 64 23 00} (length 0xf)
  //    }
  //    id: intptr = 0x1ff (8 bytes)
  //    flags: open_flags = 0x0 (8 bytes)
  //  ]
  //  returns fd_dri
  NONFAILING(memcpy((void*)0x200000000000, "/dev/dri/card#\000", 15));
  res = -1;
  NONFAILING(
      res = syz_open_dev(/*dev=*/0x200000000000, /*id=*/0x1ff, /*flags=*/0));
  if (res != -1)
    r[3] = res;
  //  ioctl$DRM_IOCTL_MODE_GETRESOURCES arguments: [
  //    fd: fd_dri (resource)
  //    cmd: const = 0xc04064a0 (4 bytes)
  //    arg: ptr[inout, drm_mode_card_res] {
  //      drm_mode_card_res {
  //        fbid: nil
  //        crtcid: ptr[out, array[drm_crtc_id]] {
  //          array[drm_crtc_id] {
  //            drm_crtc_id (resource)
  //          }
  //        }
  //        connid: nil
  //        encid: nil
  //        nfbid: len = 0x0 (4 bytes)
  //        ncrtcid: len = 0x1 (4 bytes)
  //        nconnid: len = 0x0 (4 bytes)
  //        nencid: len = 0x0 (4 bytes)
  //        maxw: const = 0x0 (4 bytes)
  //        maxh: const = 0x0 (4 bytes)
  //        minw: const = 0x0 (4 bytes)
  //        minh: const = 0x0 (4 bytes)
  //      }
  //    }
  //  ]
  NONFAILING(*(uint64_t*)0x200000000200 = 0);
  NONFAILING(*(uint64_t*)0x200000000208 = 0x200000000100);
  NONFAILING(*(uint64_t*)0x200000000210 = 0);
  NONFAILING(*(uint64_t*)0x200000000218 = 0);
  NONFAILING(*(uint32_t*)0x200000000220 = 0);
  NONFAILING(*(uint32_t*)0x200000000224 = 1);
  NONFAILING(*(uint32_t*)0x200000000228 = 0);
  NONFAILING(*(uint32_t*)0x20000000022c = 0);
  NONFAILING(*(uint32_t*)0x200000000230 = 0);
  NONFAILING(*(uint32_t*)0x200000000234 = 0);
  NONFAILING(*(uint32_t*)0x200000000238 = 0);
  NONFAILING(*(uint32_t*)0x20000000023c = 0);
  syscall(__NR_ioctl, /*fd=*/r[3], /*cmd=*/0xc04064a0,
          /*arg=*/0x200000000200ul);
  //  syz_open_dev$dri arguments: [
  //    dev: ptr[in, buffer] {
  //      buffer: {2f 64 65 76 2f 64 72 69 2f 63 61 72 64 23 00} (length 0xf)
  //    }
  //    id: intptr = 0xd21 (8 bytes)
  //    flags: open_flags = 0x0 (8 bytes)
  //  ]
  //  returns fd_dri
  NONFAILING(memcpy((void*)0x2000000008c0, "/dev/dri/card#\000", 15));
  res = -1;
  NONFAILING(
      res = syz_open_dev(/*dev=*/0x2000000008c0, /*id=*/0xd21, /*flags=*/0));
  if (res != -1)
    r[4] = res;
  //  ioctl$DRM_IOCTL_MODE_GETRESOURCES arguments: [
  //    fd: fd_dri (resource)
  //    cmd: const = 0xc04064a0 (4 bytes)
  //    arg: ptr[inout, drm_mode_card_res] {
  //      drm_mode_card_res {
  //        fbid: nil
  //        crtcid: ptr[out, array[drm_crtc_id]] {
  //          array[drm_crtc_id] {
  //            drm_crtc_id (resource)
  //          }
  //        }
  //        connid: nil
  //        encid: nil
  //        nfbid: len = 0x0 (4 bytes)
  //        ncrtcid: len = 0x1 (4 bytes)
  //        nconnid: len = 0x0 (4 bytes)
  //        nencid: len = 0x0 (4 bytes)
  //        maxw: const = 0x0 (4 bytes)
  //        maxh: const = 0x0 (4 bytes)
  //        minw: const = 0x0 (4 bytes)
  //        minh: const = 0x0 (4 bytes)
  //      }
  //    }
  //  ]
  NONFAILING(*(uint64_t*)0x2000000001c0 = 0);
  NONFAILING(*(uint64_t*)0x2000000001c8 = 0x2000000000c0);
  NONFAILING(*(uint64_t*)0x2000000001d0 = 0);
  NONFAILING(*(uint64_t*)0x2000000001d8 = 0);
  NONFAILING(*(uint32_t*)0x2000000001e0 = 0);
  NONFAILING(*(uint32_t*)0x2000000001e4 = 1);
  NONFAILING(*(uint32_t*)0x2000000001e8 = 0);
  NONFAILING(*(uint32_t*)0x2000000001ec = 0);
  NONFAILING(*(uint32_t*)0x2000000001f0 = 0);
  NONFAILING(*(uint32_t*)0x2000000001f4 = 0);
  NONFAILING(*(uint32_t*)0x2000000001f8 = 0);
  NONFAILING(*(uint32_t*)0x2000000001fc = 0);
  res = syscall(__NR_ioctl, /*fd=*/r[4], /*cmd=*/0xc04064a0,
                /*arg=*/0x2000000001c0ul);
  if (res != -1)
    NONFAILING(r[5] = *(uint32_t*)0x2000000000c0);
  //  socket$inet6_tcp arguments: [
  //    domain: const = 0xa (8 bytes)
  //    type: const = 0x1 (8 bytes)
  //    proto: const = 0x0 (4 bytes)
  //  ]
  //  returns sock_tcp6
  res = syscall(__NR_socket, /*domain=*/0xaul, /*type=*/1ul, /*proto=*/0);
  if (res != -1)
    r[6] = res;
  //  getsockopt$inet6_tcp_TCP_ZEROCOPY_RECEIVE arguments: [
  //    fd: sock_tcp6 (resource)
  //    level: const = 0x6 (4 bytes)
  //    optname: const = 0x23 (4 bytes)
  //    optval: ptr[in, tcp_zerocopy_receive] {
  //      tcp_zerocopy_receive {
  //        address: VMA[0x1000]
  //        length: len = 0x1000 (4 bytes)
  //        recv_skip_hint: int32 = 0x0 (4 bytes)
  //        inq: int32 = 0x0 (4 bytes)
  //        err: int32 = 0x0 (4 bytes)
  //        copybuf_address: ptr[out, buffer] {
  //          buffer: (DirOut)
  //        }
  //        copybuf_len: bytesize = 0xfffffffffffffdcc (4 bytes)
  //        flags: tcp_zerocopy_receive_flags = 0x0 (4 bytes)
  //        msg_control: nil
  //        msg_controllen: bytesize = 0xffffffffffffff29 (8 bytes)
  //        msg_flags: int32 = 0x0 (4 bytes)
  //        reserved: const = 0x0 (4 bytes)
  //      }
  //    }
  //    optlen: ptr[inout, len] {
  //      len = 0x28 (4 bytes)
  //    }
  //  ]
  NONFAILING(*(uint64_t*)0x200000000140 = 0x200000ffc000);
  NONFAILING(*(uint32_t*)0x200000000148 = 0x1000);
  NONFAILING(*(uint64_t*)0x200000000158 = 0x200000001380);
  NONFAILING(*(uint32_t*)0x200000000160 = 0xfffffdcc);
  NONFAILING(*(uint32_t*)0x200000000164 = 0);
  NONFAILING(*(uint64_t*)0x200000000168 = 0);
  NONFAILING(*(uint64_t*)0x200000000170 = 0xffffffffffffff29);
  NONFAILING(*(uint32_t*)0x20000000017c = 0);
  NONFAILING(*(uint32_t*)0x200000000000 = 0x28);
  syscall(__NR_getsockopt, /*fd=*/r[6], /*level=*/6, /*optname=*/0x23,
          /*optval=*/0x200000000140ul, /*optlen=*/0x200000000000ul);
  //  ioctl$DRM_IOCTL_MODE_GETCRTC arguments: [
  //    fd: fd_dri (resource)
  //    cmd: const = 0xc06864a1 (4 bytes)
  //    arg: ptr[inout, drm_mode_crtc$DRM_IOCTL_MODE_GETCRTC] {
  //      drm_mode_crtc$DRM_IOCTL_MODE_GETCRTC {
  //        set_connectors_ptr: nil
  //        count_connectors: len = 0x0 (4 bytes)
  //        crtc_id: drm_crtc_id (resource)
  //        fb_id: drm_fb_id (resource)
  //        x: int32 = 0x0 (4 bytes)
  //        y: int32 = 0x0 (4 bytes)
  //        gamma_size: int32 = 0x0 (4 bytes)
  //        mode_valid: int32 = 0x0 (4 bytes)
  //        mode: drm_mode_modeinfo {
  //          clock: int32 = 0x0 (4 bytes)
  //          hdisplay: int16 = 0x0 (2 bytes)
  //          hsync_start: int16 = 0x0 (2 bytes)
  //          hsync_end: int16 = 0x0 (2 bytes)
  //          htotal: int16 = 0x0 (2 bytes)
  //          hskew: int16 = 0x0 (2 bytes)
  //          vdisplay: int16 = 0x0 (2 bytes)
  //          vsync_start: int16 = 0x0 (2 bytes)
  //          vsync_end: int16 = 0x0 (2 bytes)
  //          vtotal: int16 = 0x0 (2 bytes)
  //          vscan: int16 = 0x0 (2 bytes)
  //          vrefresh: int32 = 0x0 (4 bytes)
  //          flags: int32 = 0x0 (4 bytes)
  //          type: int32 = 0x0 (4 bytes)
  //          name: buffer: (DirOut)
  //        }
  //      }
  //    }
  //  ]
  NONFAILING(*(uint64_t*)0x200000001380 = 0);
  NONFAILING(*(uint32_t*)0x200000001388 = 0);
  NONFAILING(*(uint32_t*)0x20000000138c = r[5]);
  res = syscall(__NR_ioctl, /*fd=*/r[4], /*cmd=*/0xc06864a1,
                /*arg=*/0x200000001380ul);
  if (res != -1)
    NONFAILING(r[7] = *(uint32_t*)0x200000001390);
  //  ioctl$DRM_IOCTL_MODE_GETFB2 arguments: [
  //    fd: fd_dri (resource)
  //    cmd: const = 0xc06864ce (4 bytes)
  //    arg: ptr[inout, drm_mode_fb_cmd2$DRM_IOCTL_MODE_GETFB2] {
  //      drm_mode_fb_cmd2$DRM_IOCTL_MODE_GETFB2 {
  //        fb_id: drm_fb_id (resource)
  //        width: int32 = 0x8002 (4 bytes)
  //        height: int32 = 0x7fff (4 bytes)
  //        pixel_format: int32 = 0x0 (4 bytes)
  //        flags: drm_mode_fb_flags = 0x0 (4 bytes)
  //        handles: array[drm_gem_handle] {
  //          drm_gem_handle (resource)
  //          drm_gem_handle (resource)
  //          drm_gem_handle (resource)
  //          drm_gem_handle (resource)
  //        }
  //        pitches: array[int32] {
  //          int32 = 0x2 (4 bytes)
  //          int32 = 0x0 (4 bytes)
  //          int32 = 0x0 (4 bytes)
  //          int32 = 0x0 (4 bytes)
  //        }
  //        offsets: array[int32] {
  //          int32 = 0x0 (4 bytes)
  //          int32 = 0x4 (4 bytes)
  //          int32 = 0xfffffffe (4 bytes)
  //          int32 = 0x5e8 (4 bytes)
  //        }
  //        pad = 0x0 (4 bytes)
  //        modifier: array[int64] {
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //          int64 = 0x0 (8 bytes)
  //        }
  //      }
  //    }
  //  ]
  NONFAILING(*(uint32_t*)0x2000000012c0 = r[7]);
  NONFAILING(*(uint32_t*)0x2000000012c4 = 0x8002);
  NONFAILING(*(uint32_t*)0x2000000012c8 = 0x7fff);
  NONFAILING(*(uint32_t*)0x2000000012cc = 0);
  NONFAILING(*(uint32_t*)0x2000000012d0 = 0);
  NONFAILING(*(uint32_t*)0x2000000012e4 = 2);
  NONFAILING(*(uint32_t*)0x2000000012e8 = 0);
  NONFAILING(*(uint32_t*)0x2000000012ec = 0);
  NONFAILING(*(uint32_t*)0x2000000012f0 = 0);
  NONFAILING(*(uint32_t*)0x2000000012f4 = 0);
  NONFAILING(*(uint32_t*)0x2000000012f8 = 4);
  NONFAILING(*(uint32_t*)0x2000000012fc = 0xfffffffe);
  NONFAILING(*(uint32_t*)0x200000001300 = 0x5e8);
  NONFAILING(*(uint64_t*)0x200000001308 = 0);
  NONFAILING(*(uint64_t*)0x200000001310 = 0);
  NONFAILING(*(uint64_t*)0x200000001318 = 0);
  NONFAILING(*(uint64_t*)0x200000001320 = 0);
  syscall(__NR_ioctl, /*fd=*/r[4], /*cmd=*/0xc06864ce,
          /*arg=*/0x2000000012c0ul);
  //  write arguments: [
  //    fd: fd (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {31} (length 0x1)
  //    }
  //    count: len = 0x1 (8 bytes)
  //  ]
  NONFAILING(memset((void*)0x2000000000c0, 49, 1));
  syscall(__NR_write, /*fd=*/r[1], /*buf=*/0x2000000000c0ul, /*count=*/1ul);
  //  socket$inet6_mptcp arguments: [
  //    domain: const = 0xa (8 bytes)
  //    type: const = 0x1 (8 bytes)
  //    proto: const = 0x106 (4 bytes)
  //  ]
  //  returns sock_mptcp6
  res = syscall(__NR_socket, /*domain=*/0xaul, /*type=*/1ul, /*proto=*/0x106);
  if (res != -1)
    r[8] = res;
  //  setsockopt$inet6_int arguments: [
  //    fd: sock_in6 (resource)
  //    level: const = 0x29 (4 bytes)
  //    optname: inet6_option_types_int = 0x35 (4 bytes)
  //    optval: nil
  //    optlen: len = 0x0 (8 bytes)
  //  ]
  syscall(__NR_setsockopt, /*fd=*/r[8], /*level=*/0x29,
          /*optname=IPV6_RECVHOPOPTS*/ 0x35, /*optval=*/0ul, /*optlen=*/0ul);
  //  setsockopt$inet6_tcp_int arguments: [
  //    fd: sock_tcp6 (resource)
  //    level: const = 0x6 (4 bytes)
  //    optname: tcp_option_types_int = 0x13 (4 bytes)
  //    optval: ptr[in, int32] {
  //      int32 = 0x100000001 (4 bytes)
  //    }
  //    optlen: len = 0x4 (8 bytes)
  //  ]
  NONFAILING(*(uint32_t*)0x200000000040 = 1);
  syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/6,
          /*optname=TCP_THIN_LINEAR_TIMEOUTS|TCP_CORK*/ 0x13,
          /*optval=*/0x200000000040ul, /*optlen=*/4ul);
  //  ioctl$DRM_IOCTL_AGP_ACQUIRE arguments: [
  //    fd: fd_dri (resource)
  //    cmd: const = 0x6430 (4 bytes)
  //  ]
  syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0x6430, 0);
  //  setsockopt$inet6_tcp_TCP_ULP arguments: [
  //    fd: sock_tcp6 (resource)
  //    level: const = 0x6 (4 bytes)
  //    optname: const = 0x1f (4 bytes)
  //    optval: ptr[in, buffer] {
  //      buffer: {74 6c 73} (length 0x3)
  //    }
  //    optlen: len = 0x4 (8 bytes)
  //  ]
  NONFAILING(memcpy((void*)0x2000000002c0, "tls", 3));
  syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/6, /*optname=*/0x1f,
          /*optval=*/0x2000000002c0ul, /*optlen=*/4ul);
  //  socket$inet_icmp_raw arguments: [
  //    domain: const = 0x2 (8 bytes)
  //    type: const = 0x3 (8 bytes)
  //    proto: const = 0x1 (4 bytes)
  //  ]
  //  returns sock_icmp
  res = syscall(__NR_socket, /*domain=*/2ul, /*type=*/3ul, /*proto=*/1);
  if (res != -1)
    r[9] = res;
  //  getsockopt$IPT_SO_GET_REVISION_TARGET arguments: [
  //    fd: sock_in (resource)
  //    level: const = 0x0 (4 bytes)
  //    opt: const = 0x43 (4 bytes)
  //    val: ptr[in, xt_get_revision] {
  //      xt_get_revision {
  //        name: buffer: {69 63 6d 70 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //        00 00 00 00 00 00 00 00 00 00 00} (length 0x1d) revision: const =
  //        0x0 (1 bytes)
  //      }
  //    }
  //    len: ptr[in, len] {
  //      len = 0x1e (4 bytes)
  //    }
  //  ]
  NONFAILING(memcpy((void*)0x200000000000,
                    "icmp\000\000\000\000\000\000\000\000\000\000\000\000\000"
                    "\000\000\000\000\000\000\000\000\000\000\000\000",
                    29));
  NONFAILING(*(uint8_t*)0x20000000001d = 0);
  NONFAILING(*(uint32_t*)0x200000000080 = 0x1e);
  syscall(__NR_getsockopt, /*fd=*/r[9], /*level=*/0, /*opt=*/0x43,
          /*val=*/0x200000000000ul, /*len=*/0x200000000080ul);
  //  socket$nl_generic arguments: [
  //    domain: const = 0x10 (8 bytes)
  //    type: const = 0x3 (8 bytes)
  //    proto: const = 0x10 (4 bytes)
  //  ]
  //  returns sock_nl_generic
  syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0x10);
  //  sendmsg$key arguments: [
  //    fd: sock_key (resource)
  //    msg: ptr[in, send_msghdr_key] {
  //      send_msghdr_key {
  //        msg_name: const = 0x0 (8 bytes)
  //        msg_namelen: const = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        msg_iov: ptr[in, iovec_sadb_msg] {
  //          iovec_sadb_msg {
  //            addr: ptr[in, sadb_msg] {
  //              sadb_msg {
  //                sadb_msg_version: const = 0x2 (1 bytes)
  //                sadb_msg_type: int8 = 0xb (1 bytes)
  //                sadb_msg_errno: int8 = 0xe (1 bytes)
  //                sadb_msg_satype: sadb_satype = 0x8 (1 bytes)
  //                sadb_msg_len: bytesize8 = 0x6 (2 bytes)
  //                sadb_msg_reserved: const = 0x0 (2 bytes)
  //                sadb_msg_seq: int32 = 0x70bd25 (4 bytes)
  //                sadb_msg_pid: int32 = 0x25dfdbfe (4 bytes)
  //                ext_headers: array[sadb_ext_hdr] {
  //                  union sadb_ext_hdr {
  //                    sadb_lifetime: sadb_lifetime {
  //                      sadb_len: bytesize8 = 0x4 (2 bytes)
  //                      sadb_exttype: sadb_lifetime_type = 0x3 (2 bytes)
  //                      sadb_lifetime_allocations: int32 = 0x4 (4 bytes)
  //                      sadb_lifetime_bytes: int64 = 0x5 (8 bytes)
  //                      sadb_lifetime_addtime: int64 = 0xf (8 bytes)
  //                      sadb_lifetime_usetime: int64 = 0x10000000000001 (8
  //                      bytes)
  //                    }
  //                  }
  //                }
  //              }
  //            }
  //            len: bytesize = 0x30 (8 bytes)
  //          }
  //        }
  //        msg_iovlen: const = 0x1 (8 bytes)
  //        msg_control: const = 0x0 (8 bytes)
  //        msg_controllen: const = 0x0 (8 bytes)
  //        msg_flags: const = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    f: send_flags = 0x4000 (8 bytes)
  //  ]
  NONFAILING(*(uint64_t*)0x200000000200 = 0);
  NONFAILING(*(uint32_t*)0x200000000208 = 0);
  NONFAILING(*(uint64_t*)0x200000000210 = 0x200000000100);
  NONFAILING(*(uint64_t*)0x200000000100 = 0x200000000080);
  NONFAILING(*(uint8_t*)0x200000000080 = 2);
  NONFAILING(*(uint8_t*)0x200000000081 = 0xb);
  NONFAILING(*(uint8_t*)0x200000000082 = 0xe);
  NONFAILING(*(uint8_t*)0x200000000083 = 8);
  NONFAILING(*(uint16_t*)0x200000000084 = 6);
  NONFAILING(*(uint16_t*)0x200000000086 = 0);
  NONFAILING(*(uint32_t*)0x200000000088 = 0x70bd25);
  NONFAILING(*(uint32_t*)0x20000000008c = 0x25dfdbfe);
  NONFAILING(*(uint16_t*)0x200000000090 = 4);
  NONFAILING(*(uint16_t*)0x200000000092 = 3);
  NONFAILING(*(uint32_t*)0x200000000094 = 4);
  NONFAILING(*(uint64_t*)0x200000000098 = 5);
  NONFAILING(*(uint64_t*)0x2000000000a0 = 0xf);
  NONFAILING(*(uint64_t*)0x2000000000a8 = 0x10000000000001);
  NONFAILING(*(uint64_t*)0x200000000108 = 0x30);
  NONFAILING(*(uint64_t*)0x200000000218 = 1);
  NONFAILING(*(uint64_t*)0x200000000220 = 0);
  NONFAILING(*(uint64_t*)0x200000000228 = 0);
  NONFAILING(*(uint32_t*)0x200000000230 = 0);
  syscall(__NR_sendmsg, /*fd=*/(intptr_t)-1, /*msg=*/0x200000000200ul,
          /*f=MSG_NOSIGNAL*/ 0x4000ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  setup_sysctl();
  const char* reason;
  (void)reason;
  install_segv_handler();
  for (procid = 0; procid < 6; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}