syzkaller-repros/linux/d07412a238e801f00f35d25aad24832210ca2304.c

// KMSAN: uninit-value in rcu_cblist_dequeue
// https://syzkaller.appspot.com/bug?id=d07412a238e801f00f35d25aad24832210ca2304
// status:invalid
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE
#include <endian.h>
#include <errno.h>
#include <errno.h>
#include <fcntl.h>
#include <linux/futex.h>
#include <linux/net.h>
#include <netinet/in.h>
#include <pthread.h>
#include <sched.h>
#include <signal.h>
#include <signal.h>
#include <stdarg.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdio.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/prctl.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

__attribute__((noreturn)) static void doexit(int status)
{
  volatile unsigned i;
  syscall(__NR_exit_group, status);
  for (i = 0;; i++) {
  }
}
#include <errno.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>

const int kFailStatus = 67;
const int kRetryStatus = 69;

static void fail(const char* msg, ...)
{
  int e = errno;
  va_list args;
  va_start(args, msg);
  vfprintf(stderr, msg, args);
  va_end(args);
  fprintf(stderr, " (errno %d)\n", e);
  doexit((e == ENOMEM || e == EAGAIN) ? kRetryStatus : kFailStatus);
}

static uint64_t current_time_ms()
{
  struct timespec ts;

  if (clock_gettime(CLOCK_MONOTONIC, &ts))
    fail("clock_gettime failed");
  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

static uintptr_t syz_open_dev(uintptr_t a0, uintptr_t a1, uintptr_t 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 {
    char buf[1024];
    char* hash;
    strncpy(buf, (char*)a0, sizeof(buf));
    buf[sizeof(buf) - 1] = 0;
    while ((hash = strchr(buf, '#'))) {
      *hash = '0' + (char)(a1 % 10);
      a1 /= 10;
    }
    return open(buf, a2, 0);
  }
}

static uintptr_t syz_open_procfs(uintptr_t a0, uintptr_t a1)
{

  char buf[128];
  memset(buf, 0, sizeof(buf));
  if (a0 == 0) {
    snprintf(buf, sizeof(buf), "/proc/self/%s", (char*)a1);
  } else if (a0 == (uintptr_t)-1) {
    snprintf(buf, sizeof(buf), "/proc/thread-self/%s", (char*)a1);
  } else {
    snprintf(buf, sizeof(buf), "/proc/self/task/%d/%s", (int)a0, (char*)a1);
  }
  int fd = open(buf, O_RDWR);
  if (fd == -1)
    fd = open(buf, O_RDONLY);
  return fd;
}

static void loop();

static void sandbox_common()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  setsid();

  struct rlimit rlim;
  rlim.rlim_cur = rlim.rlim_max = 128 << 20;
  setrlimit(RLIMIT_AS, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 8 << 20;
  setrlimit(RLIMIT_MEMLOCK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 32 << 20;
  setrlimit(RLIMIT_FSIZE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 1 << 20;
  setrlimit(RLIMIT_STACK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 0;
  setrlimit(RLIMIT_CORE, &rlim);

  if (unshare(CLONE_NEWNS)) {
  }
  if (unshare(CLONE_NEWIPC)) {
  }
  if (unshare(0x02000000)) {
  }
  if (unshare(CLONE_NEWUTS)) {
  }
  if (unshare(CLONE_SYSVSEM)) {
  }
}

static int do_sandbox_none(void)
{
  if (unshare(CLONE_NEWPID)) {
  }
  int pid = fork();
  if (pid < 0)
    fail("sandbox fork failed");
  if (pid)
    return pid;

  sandbox_common();
  if (unshare(CLONE_NEWNET)) {
  }

  loop();
  doexit(1);
}

#define XT_TABLE_SIZE 1536
#define XT_MAX_ENTRIES 10

struct xt_counters {
  uint64_t pcnt, bcnt;
};

struct ipt_getinfo {
  char name[32];
  unsigned int valid_hooks;
  unsigned int hook_entry[5];
  unsigned int underflow[5];
  unsigned int num_entries;
  unsigned int size;
};

struct ipt_get_entries {
  char name[32];
  unsigned int size;
  void* entrytable[XT_TABLE_SIZE / sizeof(void*)];
};

struct ipt_replace {
  char name[32];
  unsigned int valid_hooks;
  unsigned int num_entries;
  unsigned int size;
  unsigned int hook_entry[5];
  unsigned int underflow[5];
  unsigned int num_counters;
  struct xt_counters* counters;
  char entrytable[XT_TABLE_SIZE];
};

struct ipt_table_desc {
  const char* name;
  struct ipt_getinfo info;
  struct ipt_replace replace;
};

static struct ipt_table_desc ipv4_tables[] = {
    {.name = "filter"}, {.name = "nat"},      {.name = "mangle"},
    {.name = "raw"},    {.name = "security"},
};

static struct ipt_table_desc ipv6_tables[] = {
    {.name = "filter"}, {.name = "nat"},      {.name = "mangle"},
    {.name = "raw"},    {.name = "security"},
};

#define IPT_BASE_CTL 64
#define IPT_SO_SET_REPLACE (IPT_BASE_CTL)
#define IPT_SO_GET_INFO (IPT_BASE_CTL)
#define IPT_SO_GET_ENTRIES (IPT_BASE_CTL + 1)

struct arpt_getinfo {
  char name[32];
  unsigned int valid_hooks;
  unsigned int hook_entry[3];
  unsigned int underflow[3];
  unsigned int num_entries;
  unsigned int size;
};

struct arpt_get_entries {
  char name[32];
  unsigned int size;
  void* entrytable[XT_TABLE_SIZE / sizeof(void*)];
};

struct arpt_replace {
  char name[32];
  unsigned int valid_hooks;
  unsigned int num_entries;
  unsigned int size;
  unsigned int hook_entry[3];
  unsigned int underflow[3];
  unsigned int num_counters;
  struct xt_counters* counters;
  char entrytable[XT_TABLE_SIZE];
};

struct arpt_table_desc {
  const char* name;
  struct arpt_getinfo info;
  struct arpt_replace replace;
};

static struct arpt_table_desc arpt_tables[] = {
    {.name = "filter"},
};

#define ARPT_BASE_CTL 96
#define ARPT_SO_SET_REPLACE (ARPT_BASE_CTL)
#define ARPT_SO_GET_INFO (ARPT_BASE_CTL)
#define ARPT_SO_GET_ENTRIES (ARPT_BASE_CTL + 1)

static void checkpoint_iptables(struct ipt_table_desc* tables, int num_tables,
                                int family, int level)
{
  struct ipt_get_entries entries;
  socklen_t optlen;
  int fd, i;

  fd = socket(family, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1)
    fail("socket(%d, SOCK_STREAM, IPPROTO_TCP)", family);
  for (i = 0; i < num_tables; i++) {
    struct ipt_table_desc* table = &tables[i];
    strcpy(table->info.name, table->name);
    strcpy(table->replace.name, table->name);
    optlen = sizeof(table->info);
    if (getsockopt(fd, level, IPT_SO_GET_INFO, &table->info, &optlen)) {
      switch (errno) {
      case EPERM:
      case ENOENT:
      case ENOPROTOOPT:
        continue;
      }
      fail("getsockopt(IPT_SO_GET_INFO)");
    }
    if (table->info.size > sizeof(table->replace.entrytable))
      fail("table size is too large: %u", table->info.size);
    if (table->info.num_entries > XT_MAX_ENTRIES)
      fail("too many counters: %u", table->info.num_entries);
    memset(&entries, 0, sizeof(entries));
    strcpy(entries.name, table->name);
    entries.size = table->info.size;
    optlen = sizeof(entries) - sizeof(entries.entrytable) + table->info.size;
    if (getsockopt(fd, level, IPT_SO_GET_ENTRIES, &entries, &optlen))
      fail("getsockopt(IPT_SO_GET_ENTRIES)");
    table->replace.valid_hooks = table->info.valid_hooks;
    table->replace.num_entries = table->info.num_entries;
    table->replace.size = table->info.size;
    memcpy(table->replace.hook_entry, table->info.hook_entry,
           sizeof(table->replace.hook_entry));
    memcpy(table->replace.underflow, table->info.underflow,
           sizeof(table->replace.underflow));
    memcpy(table->replace.entrytable, entries.entrytable, table->info.size);
  }
  close(fd);
}

static void reset_iptables(struct ipt_table_desc* tables, int num_tables,
                           int family, int level)
{
  struct xt_counters counters[XT_MAX_ENTRIES];
  struct ipt_get_entries entries;
  struct ipt_getinfo info;
  socklen_t optlen;
  int fd, i;

  fd = socket(family, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1)
    fail("socket(%d, SOCK_STREAM, IPPROTO_TCP)", family);
  for (i = 0; i < num_tables; i++) {
    struct ipt_table_desc* table = &tables[i];
    if (table->info.valid_hooks == 0)
      continue;
    memset(&info, 0, sizeof(info));
    strcpy(info.name, table->name);
    optlen = sizeof(info);
    if (getsockopt(fd, level, IPT_SO_GET_INFO, &info, &optlen))
      fail("getsockopt(IPT_SO_GET_INFO)");
    if (memcmp(&table->info, &info, sizeof(table->info)) == 0) {
      memset(&entries, 0, sizeof(entries));
      strcpy(entries.name, table->name);
      entries.size = table->info.size;
      optlen = sizeof(entries) - sizeof(entries.entrytable) + entries.size;
      if (getsockopt(fd, level, IPT_SO_GET_ENTRIES, &entries, &optlen))
        fail("getsockopt(IPT_SO_GET_ENTRIES)");
      if (memcmp(table->replace.entrytable, entries.entrytable,
                 table->info.size) == 0)
        continue;
    }
    table->replace.num_counters = info.num_entries;
    table->replace.counters = counters;
    optlen = sizeof(table->replace) - sizeof(table->replace.entrytable) +
             table->replace.size;
    if (setsockopt(fd, level, IPT_SO_SET_REPLACE, &table->replace, optlen))
      fail("setsockopt(IPT_SO_SET_REPLACE)");
  }
  close(fd);
}

static void checkpoint_arptables(void)
{
  struct arpt_get_entries entries;
  socklen_t optlen;
  unsigned i;
  int fd;

  fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1)
    fail("socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)");
  for (i = 0; i < sizeof(arpt_tables) / sizeof(arpt_tables[0]); i++) {
    struct arpt_table_desc* table = &arpt_tables[i];
    strcpy(table->info.name, table->name);
    strcpy(table->replace.name, table->name);
    optlen = sizeof(table->info);
    if (getsockopt(fd, SOL_IP, ARPT_SO_GET_INFO, &table->info, &optlen)) {
      switch (errno) {
      case EPERM:
      case ENOENT:
      case ENOPROTOOPT:
        continue;
      }
      fail("getsockopt(ARPT_SO_GET_INFO)");
    }
    if (table->info.size > sizeof(table->replace.entrytable))
      fail("table size is too large: %u", table->info.size);
    if (table->info.num_entries > XT_MAX_ENTRIES)
      fail("too many counters: %u", table->info.num_entries);
    memset(&entries, 0, sizeof(entries));
    strcpy(entries.name, table->name);
    entries.size = table->info.size;
    optlen = sizeof(entries) - sizeof(entries.entrytable) + table->info.size;
    if (getsockopt(fd, SOL_IP, ARPT_SO_GET_ENTRIES, &entries, &optlen))
      fail("getsockopt(ARPT_SO_GET_ENTRIES)");
    table->replace.valid_hooks = table->info.valid_hooks;
    table->replace.num_entries = table->info.num_entries;
    table->replace.size = table->info.size;
    memcpy(table->replace.hook_entry, table->info.hook_entry,
           sizeof(table->replace.hook_entry));
    memcpy(table->replace.underflow, table->info.underflow,
           sizeof(table->replace.underflow));
    memcpy(table->replace.entrytable, entries.entrytable, table->info.size);
  }
  close(fd);
}

static void reset_arptables()
{
  struct xt_counters counters[XT_MAX_ENTRIES];
  struct arpt_get_entries entries;
  struct arpt_getinfo info;
  socklen_t optlen;
  unsigned i;
  int fd;

  fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1)
    fail("socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)");
  for (i = 0; i < sizeof(arpt_tables) / sizeof(arpt_tables[0]); i++) {
    struct arpt_table_desc* table = &arpt_tables[i];
    if (table->info.valid_hooks == 0)
      continue;
    memset(&info, 0, sizeof(info));
    strcpy(info.name, table->name);
    optlen = sizeof(info);
    if (getsockopt(fd, SOL_IP, ARPT_SO_GET_INFO, &info, &optlen))
      fail("getsockopt(ARPT_SO_GET_INFO)");
    if (memcmp(&table->info, &info, sizeof(table->info)) == 0) {
      memset(&entries, 0, sizeof(entries));
      strcpy(entries.name, table->name);
      entries.size = table->info.size;
      optlen = sizeof(entries) - sizeof(entries.entrytable) + entries.size;
      if (getsockopt(fd, SOL_IP, ARPT_SO_GET_ENTRIES, &entries, &optlen))
        fail("getsockopt(ARPT_SO_GET_ENTRIES)");
      if (memcmp(table->replace.entrytable, entries.entrytable,
                 table->info.size) == 0)
        continue;
    }
    table->replace.num_counters = info.num_entries;
    table->replace.counters = counters;
    optlen = sizeof(table->replace) - sizeof(table->replace.entrytable) +
             table->replace.size;
    if (setsockopt(fd, SOL_IP, ARPT_SO_SET_REPLACE, &table->replace, optlen))
      fail("setsockopt(ARPT_SO_SET_REPLACE)");
  }
  close(fd);
}
#include <linux/if.h>
#include <linux/netfilter_bridge/ebtables.h>

struct ebt_table_desc {
  const char* name;
  struct ebt_replace replace;
  char entrytable[XT_TABLE_SIZE];
};

static struct ebt_table_desc ebt_tables[] = {
    {.name = "filter"}, {.name = "nat"}, {.name = "broute"},
};

static void checkpoint_ebtables(void)
{
  socklen_t optlen;
  unsigned i;
  int fd;

  fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1)
    fail("socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)");
  for (i = 0; i < sizeof(ebt_tables) / sizeof(ebt_tables[0]); i++) {
    struct ebt_table_desc* table = &ebt_tables[i];
    strcpy(table->replace.name, table->name);
    optlen = sizeof(table->replace);
    if (getsockopt(fd, SOL_IP, EBT_SO_GET_INIT_INFO, &table->replace,
                   &optlen)) {
      switch (errno) {
      case EPERM:
      case ENOENT:
      case ENOPROTOOPT:
        continue;
      }
      fail("getsockopt(EBT_SO_GET_INIT_INFO)");
    }
    if (table->replace.entries_size > sizeof(table->entrytable))
      fail("table size is too large: %u", table->replace.entries_size);
    table->replace.num_counters = 0;
    table->replace.entries = table->entrytable;
    optlen = sizeof(table->replace) + table->replace.entries_size;
    if (getsockopt(fd, SOL_IP, EBT_SO_GET_INIT_ENTRIES, &table->replace,
                   &optlen))
      fail("getsockopt(EBT_SO_GET_INIT_ENTRIES)");
  }
  close(fd);
}

static void reset_ebtables()
{
  struct ebt_replace replace;
  char entrytable[XT_TABLE_SIZE];
  socklen_t optlen;
  unsigned i, j, h;
  int fd;

  fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1)
    fail("socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)");
  for (i = 0; i < sizeof(ebt_tables) / sizeof(ebt_tables[0]); i++) {
    struct ebt_table_desc* table = &ebt_tables[i];
    if (table->replace.valid_hooks == 0)
      continue;
    memset(&replace, 0, sizeof(replace));
    strcpy(replace.name, table->name);
    optlen = sizeof(replace);
    if (getsockopt(fd, SOL_IP, EBT_SO_GET_INFO, &replace, &optlen))
      fail("getsockopt(EBT_SO_GET_INFO)");
    replace.num_counters = 0;
    table->replace.entries = 0;
    for (h = 0; h < NF_BR_NUMHOOKS; h++)
      table->replace.hook_entry[h] = 0;
    if (memcmp(&table->replace, &replace, sizeof(table->replace)) == 0) {
      memset(&entrytable, 0, sizeof(entrytable));
      replace.entries = entrytable;
      optlen = sizeof(replace) + replace.entries_size;
      if (getsockopt(fd, SOL_IP, EBT_SO_GET_ENTRIES, &replace, &optlen))
        fail("getsockopt(EBT_SO_GET_ENTRIES)");
      if (memcmp(table->entrytable, entrytable, replace.entries_size) == 0)
        continue;
    }
    for (j = 0, h = 0; h < NF_BR_NUMHOOKS; h++) {
      if (table->replace.valid_hooks & (1 << h)) {
        table->replace.hook_entry[h] =
            (struct ebt_entries*)table->entrytable + j;
        j++;
      }
    }
    table->replace.entries = table->entrytable;
    optlen = sizeof(table->replace) + table->replace.entries_size;
    if (setsockopt(fd, SOL_IP, EBT_SO_SET_ENTRIES, &table->replace, optlen))
      fail("setsockopt(EBT_SO_SET_ENTRIES)");
  }
  close(fd);
}

static void checkpoint_net_namespace(void)
{
  checkpoint_ebtables();
  checkpoint_arptables();
  checkpoint_iptables(ipv4_tables, sizeof(ipv4_tables) / sizeof(ipv4_tables[0]),
                      AF_INET, SOL_IP);
  checkpoint_iptables(ipv6_tables, sizeof(ipv6_tables) / sizeof(ipv6_tables[0]),
                      AF_INET6, SOL_IPV6);
}

static void reset_net_namespace(void)
{
  reset_ebtables();
  reset_arptables();
  reset_iptables(ipv4_tables, sizeof(ipv4_tables) / sizeof(ipv4_tables[0]),
                 AF_INET, SOL_IP);
  reset_iptables(ipv6_tables, sizeof(ipv6_tables) / sizeof(ipv6_tables[0]),
                 AF_INET6, SOL_IPV6);
}

static void execute_one();
extern unsigned long long procid;

static void loop()
{
  checkpoint_net_namespace();
  int iter;
  for (iter = 0;; iter++) {
    int pid = fork();
    if (pid < 0)
      fail("clone failed");
    if (pid == 0) {
      prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
      setpgrp();
      execute_one();
      doexit(0);
    }

    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      int res = waitpid(-1, &status, __WALL | WNOHANG);
      if (res == pid) {
        break;
      }
      usleep(1000);
      if (current_time_ms() - start < 3 * 1000)
        continue;
      kill(-pid, SIGKILL);
      kill(pid, SIGKILL);
      while (waitpid(-1, &status, __WALL) != pid) {
      }
      break;
    }
    reset_net_namespace();
  }
}

struct thread_t {
  int created, running, call;
  pthread_t th;
};

static struct thread_t threads[16];
static void execute_call(int call);
static int running;
static int collide;

static void* thr(void* arg)
{
  struct thread_t* th = (struct thread_t*)arg;
  for (;;) {
    while (!__atomic_load_n(&th->running, __ATOMIC_ACQUIRE))
      syscall(SYS_futex, &th->running, FUTEX_WAIT, 0, 0);
    execute_call(th->call);
    __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
    __atomic_store_n(&th->running, 0, __ATOMIC_RELEASE);
    syscall(SYS_futex, &th->running, FUTEX_WAKE);
  }
  return 0;
}

static void execute(int num_calls)
{
  int call, thread;
  running = 0;
  for (call = 0; call < num_calls; call++) {
    for (thread = 0; thread < sizeof(threads) / sizeof(threads[0]); thread++) {
      struct thread_t* th = &threads[thread];
      if (!th->created) {
        th->created = 1;
        pthread_attr_t attr;
        pthread_attr_init(&attr);
        pthread_attr_setstacksize(&attr, 128 << 10);
        pthread_create(&th->th, &attr, thr, th);
      }
      if (!__atomic_load_n(&th->running, __ATOMIC_ACQUIRE)) {
        th->call = call;
        __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
        __atomic_store_n(&th->running, 1, __ATOMIC_RELEASE);
        syscall(SYS_futex, &th->running, FUTEX_WAKE);
        if (collide && call % 2)
          break;
        struct timespec ts;
        ts.tv_sec = 0;
        ts.tv_nsec = 20 * 1000 * 1000;
        syscall(SYS_futex, &th->running, FUTEX_WAIT, 1, &ts);
        if (running)
          usleep((call == num_calls - 1) ? 10000 : 1000);
        break;
      }
    }
  }
}

uint64_t r[14] = {0xffffffffffffffff,
                  0xffffffffffffffff,
                  0xffffffffffffffff,
                  0x0,
                  0x0,
                  0xffffffffffffffff,
                  0xffffffffffffffff,
                  0xffffffffffffffff,
                  0x0,
                  0xffffffffffffffff,
                  0xffffffffffffffff,
                  0xffffffffffffffff,
                  0xffffffffffffffff,
                  0x0};
void execute_call(int call)
{
  long res;
  switch (call) {
  case 0:
    res = syscall(__NR_socket, 1, 1, 0);
    if (res != -1)
      r[0] = res;
    break;
  case 1:
    syscall(__NR_unshare, 0x40600);
    break;
  case 2:
    memcpy((void*)0x20000000, "/dev/vcs#", 10);
    res = syz_open_dev(0x20000000, 3, 2);
    if (res != -1)
      r[1] = res;
    break;
  case 3:
    *(uint64_t*)0x20000600 = 0x20000080;
    *(uint16_t*)0x20000080 = 2;
    *(uint16_t*)0x20000082 = htobe16(0x4e24);
    *(uint32_t*)0x20000084 = htobe32(7);
    *(uint8_t*)0x20000088 = 0;
    *(uint8_t*)0x20000089 = 0;
    *(uint8_t*)0x2000008a = 0;
    *(uint8_t*)0x2000008b = 0;
    *(uint8_t*)0x2000008c = 0;
    *(uint8_t*)0x2000008d = 0;
    *(uint8_t*)0x2000008e = 0;
    *(uint8_t*)0x2000008f = 0;
    *(uint32_t*)0x20000608 = 0x10;
    *(uint64_t*)0x20000610 = 0x20000480;
    *(uint64_t*)0x20000480 = 0x200000c0;
    *(uint64_t*)0x20000488 = 0x4c;
    *(uint64_t*)0x20000490 = 0x20000140;
    *(uint64_t*)0x20000498 = 5;
    *(uint64_t*)0x200004a0 = 0x20000180;
    *(uint64_t*)0x200004a8 = 0x61;
    *(uint64_t*)0x200004b0 = 0x20000200;
    *(uint64_t*)0x200004b8 = 0xfa;
    *(uint64_t*)0x200004c0 = 0x20000300;
    *(uint64_t*)0x200004c8 = 0x76;
    *(uint64_t*)0x200004d0 = 0x20000380;
    *(uint64_t*)0x200004d8 = 0xf7;
    *(uint64_t*)0x20000618 = 6;
    *(uint64_t*)0x20000620 = 0x20000580;
    memcpy((void*)0x20000580, "\x58\x00\x00\x00\x00\x00\x00\x00\x14\x01\x00\x00"
                              "\x07\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                              "\x00",
           24);
    *(uint64_t*)0x20000598 = 0x20000500;
    memcpy((void*)0x20000500, "\xff\xff\x00\x00\x00\x00\x00\x00", 8);
    *(uint64_t*)0x200005a0 = 0x20000540;
    *(uint64_t*)0x20000628 = 0x28;
    *(uint32_t*)0x20000630 = 0x4000000;
    syscall(__NR_sendmsg, r[1], 0x20000600, 0x40000d0);
    break;
  case 4:
    syscall(__NR_pread64, r[0], 0x20000040, 0xffffffffffffffd5, 0);
    break;
  case 5:
    syscall(__NR_ioctl, -1, 0x2289, 0x20000fff);
    break;
  case 6:
    *(uint8_t*)0x20000040 = 0x7f;
    *(uint8_t*)0x20000041 = 0x45;
    *(uint8_t*)0x20000042 = 0x4c;
    *(uint8_t*)0x20000043 = 0x46;
    *(uint8_t*)0x20000044 = 0;
    *(uint8_t*)0x20000045 = -1;
    *(uint8_t*)0x20000046 = 0;
    *(uint8_t*)0x20000047 = 1;
    *(uint64_t*)0x20000048 = 6;
    *(uint16_t*)0x20000050 = 2;
    *(uint16_t*)0x20000052 = 7;
    *(uint32_t*)0x20000054 = 0x43b;
    *(uint32_t*)0x20000058 = 0xde;
    *(uint32_t*)0x2000005c = 0x38;
    *(uint32_t*)0x20000060 = 0x78;
    *(uint32_t*)0x20000064 = 8;
    *(uint16_t*)0x20000068 = 0;
    *(uint16_t*)0x2000006a = 0x20;
    *(uint16_t*)0x2000006c = 2;
    *(uint16_t*)0x2000006e = 0;
    *(uint16_t*)0x20000070 = 3;
    *(uint16_t*)0x20000072 = 1;
    *(uint32_t*)0x20000078 = 5;
    *(uint32_t*)0x2000007c = 0x62;
    *(uint32_t*)0x20000080 = 0x1f;
    *(uint32_t*)0x20000084 = 5;
    *(uint32_t*)0x20000088 = 0x788;
    *(uint32_t*)0x2000008c = 0x200;
    *(uint32_t*)0x20000090 = 0xff;
    *(uint32_t*)0x20000094 = 5;
    *(uint32_t*)0x20000098 = 0x60000000;
    *(uint32_t*)0x2000009c = 8;
    *(uint32_t*)0x200000a0 = 8;
    *(uint32_t*)0x200000a4 = 0x20;
    *(uint32_t*)0x200000a8 = 0x8000;
    *(uint32_t*)0x200000ac = 0x1ff;
    *(uint32_t*)0x200000b0 = 5;
    *(uint32_t*)0x200000b4 = 0x3ff;
    memcpy((void*)0x200000b8,
           "\xab\xbd\x21\xa5\x0f\x57\x4b\x73\x6e\x03\x2e\x74\xea\x9c\xc3\xea"
           "\xc1\x2e\x39\x6a\x5c\x1a\xdf\x0a\x63\x04\x38\x72\x31\x67\x79\x1b"
           "\xb3\x99\x09\x1d\xc8\xe4\x36\x2c\x50\x79\x12\xb0\x62\xab\xc0\xfe"
           "\xa2\x8e\x24\x60\xe3\x3b\x3b\xf4\x31\xbb\x01\xc7\xcd\x38\x5d\xd8"
           "\xdc\x91\xc1\x7a\x47\xd8\xf1\x58\x1b\x33\x27\xf5\x3b\x3f\x4d\x71"
           "\x39\x9e\x67\xb4\x6a\x4d\xc7\xe8\xbe",
           89);
    syscall(__NR_write, -1, 0x20000040, 0xd1);
    break;
  case 7:
    res = syscall(__NR_fcntl, -1, 0x406, -1);
    if (res != -1)
      r[2] = res;
    break;
  case 8:
    *(uint32_t*)0x20000180 = 0;
    *(uint16_t*)0x20000184 = 5;
    *(uint32_t*)0x200001c0 = 8;
    res = syscall(__NR_getsockopt, r[2], 0x84, 0x18, 0x20000180, 0x200001c0);
    if (res != -1)
      r[3] = *(uint32_t*)0x20000180;
    break;
  case 9:
    *(uint32_t*)0x20000200 = 0;
    *(uint32_t*)0x20000204 = 0xb0;
    memcpy((void*)0x20000208,
           "\xc3\xd4\x47\x35\xa3\xcb\x15\x85\x6b\xe8\xd2\x79\xae\x87\x68\x5d"
           "\xa6\xd6\xd0\x3a\xdd\x12\x5a\xd5\x25\xd4\xba\x76\xb9\x66\xe3\xda"
           "\x00\x23\x9a\xe5\x31\x38\xaa\xbb\x11\x26\x23\x12\xe7\xe8\xed\xa1"
           "\xf6\x71\x22\xeb\x64\x96\x7f\x5f\x31\x50\xf7\x6b\x79\x34\x99\xfb"
           "\x70\x0e\x4d\xb6\x5d\x21\xea\x5f\x08\x7c\x4c\x7d\x45\x2e\xb6\x7f"
           "\xaf\xc6\xcf\x0c\x44\x4e\xdd\x7e\x72\xbb\x39\x0c\x8c\xce\x9b\x92"
           "\x4a\x16\x63\x1b\xf7\x23\x05\xda\x57\x05\x77\x3b\x9a\x22\x61\xf7"
           "\x68\x73\xa9\x31\x9a\x8d\x3c\x6d\xa4\x07\xf1\xa5\xa8\x35\x1e\x1e"
           "\xb8\x2d\xe8\x42\x85\x6e\x84\x90\x74\xd4\x54\x8f\xec\x36\x0a\x09"
           "\xc0\x64\xbb\xbf\x7a\x70\x74\x16\x6d\xd4\x42\xd3\x37\x44\x58\x2b"
           "\xf7\x1e\xa8\xb4\x52\xad\x2d\x51\x68\xab\xcc\x66\x65\xe3\x1d\x12",
           176);
    *(uint32_t*)0x200002c0 = 0xb8;
    res = syscall(__NR_getsockopt, r[2], 0x84, 0x6d, 0x20000200, 0x200002c0);
    if (res != -1)
      r[4] = *(uint32_t*)0x20000200;
    break;
  case 10:
    *(uint8_t*)0x20000400 = 0xac;
    *(uint8_t*)0x20000401 = 0x14;
    *(uint8_t*)0x20000402 = 0x14;
    *(uint8_t*)0x20000403 = 0xbb;
    *(uint8_t*)0x20000404 = 0xac;
    *(uint8_t*)0x20000405 = 0x14;
    *(uint8_t*)0x20000406 = 0x14;
    *(uint8_t*)0x20000407 = 0xbb;
    *(uint32_t*)0x20000408 = htobe32(0xe0000002);
    syscall(__NR_setsockopt, r[2], 0, 0x28, 0x20000400, 0xc);
    break;
  case 11:
    *(uint32_t*)0x20000300 = r[3];
    *(uint32_t*)0x20000304 = 1;
    *(uint32_t*)0x20000308 = 0xffffffc0;
    *(uint16_t*)0x2000030c = -1;
    *(uint16_t*)0x2000030e = 0xd8cb;
    *(uint16_t*)0x20000310 = 5;
    *(uint16_t*)0x20000312 = 0;
    *(uint32_t*)0x20000314 = 4;
    *(uint32_t*)0x20000318 = r[4];
    *(uint16_t*)0x2000031c = 2;
    *(uint16_t*)0x2000031e = htobe16(0x4e22);
    *(uint8_t*)0x20000320 = 0xac;
    *(uint8_t*)0x20000321 = 0x14;
    *(uint8_t*)0x20000322 = 0x14;
    *(uint8_t*)0x20000323 = 0xbb;
    *(uint8_t*)0x20000324 = 0;
    *(uint8_t*)0x20000325 = 0;
    *(uint8_t*)0x20000326 = 0;
    *(uint8_t*)0x20000327 = 0;
    *(uint8_t*)0x20000328 = 0;
    *(uint8_t*)0x20000329 = 0;
    *(uint8_t*)0x2000032a = 0;
    *(uint8_t*)0x2000032b = 0;
    *(uint32_t*)0x2000039c = 0x7ff;
    *(uint32_t*)0x200003a0 = 3;
    *(uint32_t*)0x200003a4 = 0;
    *(uint32_t*)0x200003a8 = 0x800;
    *(uint32_t*)0x200003ac = 0;
    *(uint32_t*)0x200003c0 = 0xb0;
    syscall(__NR_getsockopt, r[2], 0x84, 0xe, 0x20000300, 0x200003c0);
    break;
  case 12:
    *(uint16_t*)0x20000140 = 2;
    *(uint64_t*)0x20000148 = 0x20000000;
    *(uint16_t*)0x20000000 = 0;
    *(uint8_t*)0x20000002 = -1;
    *(uint8_t*)0x20000003 = -1;
    *(uint32_t*)0x20000004 = 5;
    *(uint16_t*)0x20000008 = 8;
    *(uint8_t*)0x2000000a = 0xc8;
    *(uint8_t*)0x2000000b = 5;
    *(uint32_t*)0x2000000c = 4;
    syscall(__NR_ioctl, r[2], 0x401054d5, 0x20000140);
    break;
  case 13:
    res = syscall(__NR_socketpair, 1, 5, 0, 0x20000000);
    if (res != -1)
      r[5] = *(uint32_t*)0x20000000;
    break;
  case 14:
    syscall(__NR_recvfrom, r[5], 0x20000040, 0x86, 0x40, 0, 0);
    break;
  case 15:
    res = syscall(__NR_socket, 0x40000000015, 6, 0xfc);
    if (res != -1)
      r[6] = res;
    break;
  case 16:
    *(uint32_t*)0x200000c0 = 9;
    *(uint16_t*)0x200000c8 = 0xa;
    *(uint16_t*)0x200000ca = htobe16(0x4e21);
    *(uint32_t*)0x200000cc = 0xfffffdce;
    *(uint8_t*)0x200000d0 = 0xfe;
    *(uint8_t*)0x200000d1 = 0x80;
    *(uint8_t*)0x200000d2 = 0;
    *(uint8_t*)0x200000d3 = 0;
    *(uint8_t*)0x200000d4 = 0;
    *(uint8_t*)0x200000d5 = 0;
    *(uint8_t*)0x200000d6 = 0;
    *(uint8_t*)0x200000d7 = 0;
    *(uint8_t*)0x200000d8 = 0;
    *(uint8_t*)0x200000d9 = 0;
    *(uint8_t*)0x200000da = 0;
    *(uint8_t*)0x200000db = 0;
    *(uint8_t*)0x200000dc = 0;
    *(uint8_t*)0x200000dd = 0;
    *(uint8_t*)0x200000de = 0;
    *(uint8_t*)0x200000df = 0xaa;
    *(uint32_t*)0x200000e0 = 0x80000001;
    *(uint16_t*)0x20000148 = 0xa;
    *(uint16_t*)0x2000014a = htobe16(0x4e23);
    *(uint32_t*)0x2000014c = 3;
    *(uint8_t*)0x20000150 = 0xfe;
    *(uint8_t*)0x20000151 = 0x80;
    *(uint8_t*)0x20000152 = 0;
    *(uint8_t*)0x20000153 = 0;
    *(uint8_t*)0x20000154 = 0;
    *(uint8_t*)0x20000155 = 0;
    *(uint8_t*)0x20000156 = 0;
    *(uint8_t*)0x20000157 = 0;
    *(uint8_t*)0x20000158 = 0;
    *(uint8_t*)0x20000159 = 0;
    *(uint8_t*)0x2000015a = 0;
    *(uint8_t*)0x2000015b = 0;
    *(uint8_t*)0x2000015c = 0;
    *(uint8_t*)0x2000015d = 0;
    *(uint8_t*)0x2000015e = 0;
    *(uint8_t*)0x2000015f = 0xaa;
    *(uint32_t*)0x20000160 = 2;
    syscall(__NR_setsockopt, r[6], 0x29, 0x2f, 0x200000c0, 0x108);
    break;
  case 17:
    syscall(__NR_mmap, 0x20000000, 0xfb8000, 0, 0x12, r[6], 0);
    break;
  case 18:
    *(uint8_t*)0x20000080 = 0x73;
    *(uint8_t*)0x20000081 = 0x79;
    *(uint8_t*)0x20000082 = 0x7a;
    *(uint8_t*)0x20000083 = 0;
    *(uint8_t*)0x20000084 = 0;
    syscall(__NR_keyctl, 1, 0x20000080);
    break;
  case 19:
    res = syscall(__NR_inotify_init1, 0);
    if (res != -1)
      r[7] = res;
    break;
  case 20:
    syscall(__NR_fcntl, r[7], 8, -1);
    break;
  case 21:
    res = syscall(__NR_fcntl, r[7], 0x10, 0x20000400);
    if (res != -1)
      r[8] = *(uint32_t*)0x20000404;
    break;
  case 22:
    syscall(__NR_ptrace, 0x4206, r[8], 0, 0);
    break;
  case 23:
    memcpy((void*)0x20000000, "/proc/self/net/pfkey", 21);
    res = syscall(__NR_openat, 0xffffffffffffff9c, 0x20000000, 0x8000, 0);
    if (res != -1)
      r[9] = res;
    break;
  case 24:
    *(uint32_t*)0x20000780 = 0;
    *(uint16_t*)0x20000784 = 0x80;
    *(uint16_t*)0x20000786 = 7;
    *(uint16_t*)0x20000788 = 1;
    *(uint16_t*)0x2000078a = 1;
    *(uint16_t*)0x2000078c = 6;
    *(uint16_t*)0x2000078e = 6;
    *(uint16_t*)0x20000790 = 9;
    *(uint16_t*)0x20000792 = 0;
    *(uint16_t*)0x20000794 = 1;
    *(uint32_t*)0x200008c0 = 0x16;
    res = syscall(__NR_getsockopt, r[9], 0x84, 0x77, 0x20000780, 0x200008c0);
    if (res != -1)
      r[10] = *(uint32_t*)0x20000780;
    break;
  case 25:
    *(uint32_t*)0x20000900 = r[10];
    *(uint32_t*)0x20000904 = 2;
    *(uint32_t*)0x20000940 = 8;
    syscall(__NR_getsockopt, r[9], 0x84, 0x11, 0x20000900, 0x20000940);
    break;
  case 26:
    res = syscall(__NR_socket, 2, 0x4000000000000001, 0);
    if (res != -1)
      r[11] = res;
    break;
  case 27:
    *(uint16_t*)0x20366000 = 2;
    *(uint16_t*)0x20366002 = htobe16(0x4e23);
    *(uint32_t*)0x20366004 = htobe32(-1);
    *(uint8_t*)0x20366008 = 0;
    *(uint8_t*)0x20366009 = 0;
    *(uint8_t*)0x2036600a = 0;
    *(uint8_t*)0x2036600b = 0;
    *(uint8_t*)0x2036600c = 0;
    *(uint8_t*)0x2036600d = 0;
    *(uint8_t*)0x2036600e = 0;
    *(uint8_t*)0x2036600f = 0;
    syscall(__NR_bind, r[11], 0x20366000, 0x10);
    break;
  case 28:
    *(uint16_t*)0x20deaff0 = 2;
    *(uint16_t*)0x20deaff2 = htobe16(0x4e23);
    *(uint32_t*)0x20deaff4 = htobe32(0x7f000001);
    *(uint8_t*)0x20deaff8 = 0;
    *(uint8_t*)0x20deaff9 = 0;
    *(uint8_t*)0x20deaffa = 0;
    *(uint8_t*)0x20deaffb = 0;
    *(uint8_t*)0x20deaffc = 0;
    *(uint8_t*)0x20deaffd = 0;
    *(uint8_t*)0x20deaffe = 0;
    *(uint8_t*)0x20deafff = 0;
    syscall(__NR_sendto, r[11], 0x20fd0000, 0x67d0a4f154ddf4a1, 0x20000801,
            0x20deaff0, 0x10);
    break;
  case 29:
    *(uint32_t*)0x20000ac0 = r[10];
    memcpy((void*)0x20000ac4,
           "\x7a\x00\x00\x00\x84\xac\x3b\xf5\x72\x6d\x95\xa7\x5f\xad\xd4\xf8"
           "\x4b\x03\x22\x1a\x4a\x7c\x6e\x8a\x89\xf8\xd6\xde\x95\xbf\x96\xaf"
           "\x5a\x41\xfc\x59\xda\x16\xf6\xa3\xc1\x15\xb0\x62\x60\x69\x7e\x66"
           "\x66\x85\xf8\x6f\x0a\x60\x56\xdc\x5f\xfe\xb3\xe2\x69\x56\xe8\x04"
           "\x55\xc7\xae\xe3\xdb\xf3\x02\x35\x9f\xcb\x56\xaf\xe9\xfe\x65\xcf"
           "\x2d\xb0\x02\x0c\x47\xd9\xd9\x05\x00\x5d\xf6\xde\xab\xd2\x5e\x31"
           "\x55\x3a\x9d\x4d\x81\x8c\xf6\xe4\xf4\xac\xf7\x20\x10\x97\x95\xcf"
           "\xf2\xe5\xa1\xf4\xa1\x51\x74\x87\x4b\x4e\x28\x9a\x3b\x5a",
           126);
    *(uint32_t*)0x20000b80 = 2;
    syscall(__NR_getsockopt, r[9], 0x84, 0x1b, 0x20000ac0, 0x20000b80);
    break;
  case 30:
    memcpy((void*)0x20000a80,
           "\x66\x65\x74\x2f\x74\x63\x70\x00\x5c\x51\xae\x32\xf0\x98\x42\x45"
           "\x33\xa6\xd4\x15\x78\x08\x20\xfc\x1b\x57\x35\x23\x25\xd2\x69\xc6"
           "\x5f\x30\xe8\x6d\x3f\x4b\x98\x08\xdb\x80\x52\xb5\x52\xa6\xf6\x2b"
           "\x7f\x3b\x8f\x3e\xc6\x44\x41\x23\xce\x19\x22\x8f\x00\x7b",
           62);
    res = syz_open_procfs(r[8], 0x20000a80);
    if (res != -1)
      r[12] = res;
    break;
  case 31:
    *(uint64_t*)0x20000540 = 0x20000280;
    *(uint64_t*)0x20000548 = 0x61;
    *(uint64_t*)0x20000550 = 0x20000480;
    *(uint64_t*)0x20000558 = 0x90;
    syscall(__NR_preadv, r[12], 0x20000540, 2, 0);
    break;
  case 32:
    *(uint32_t*)0x20000440 = 0;
    *(uint16_t*)0x20000444 = 2;
    *(uint16_t*)0x20000446 = htobe16(0x4e21);
    *(uint32_t*)0x20000448 = htobe32(-1);
    *(uint8_t*)0x2000044c = 0;
    *(uint8_t*)0x2000044d = 0;
    *(uint8_t*)0x2000044e = 0;
    *(uint8_t*)0x2000044f = 0;
    *(uint8_t*)0x20000450 = 0;
    *(uint8_t*)0x20000451 = 0;
    *(uint8_t*)0x20000452 = 0;
    *(uint8_t*)0x20000453 = 0;
    *(uint32_t*)0x200004c4 = 0x76e;
    *(uint32_t*)0x200004c8 = 8;
    *(uint32_t*)0x200004cc = 0x81;
    *(uint32_t*)0x200004d0 = 0x3f;
    *(uint32_t*)0x200004d4 = 5;
    *(uint32_t*)0x20000380 = 0x98;
    res = syscall(__NR_getsockopt, r[9], 0x84, 0xf, 0x20000440, 0x20000380);
    if (res != -1)
      r[13] = *(uint32_t*)0x20000440;
    break;
  case 33:
    *(uint32_t*)0x20000580 = r[13];
    *(uint32_t*)0x20000584 = 0x3f;
    *(uint32_t*)0x20000588 = 2;
    *(uint16_t*)0x2000058c = 1;
    *(uint16_t*)0x2000058e = 0x8000;
    *(uint16_t*)0x20000590 = 2;
    *(uint16_t*)0x20000592 = 3;
    *(uint32_t*)0x20000594 = 1;
    *(uint32_t*)0x20000598 = 0;
    *(uint16_t*)0x2000059c = 0xa;
    *(uint16_t*)0x2000059e = htobe16(0x4e20);
    *(uint32_t*)0x200005a0 = 0x3685;
    *(uint8_t*)0x200005a4 = 0xfe;
    *(uint8_t*)0x200005a5 = 0x80;
    *(uint8_t*)0x200005a6 = 0;
    *(uint8_t*)0x200005a7 = 0;
    *(uint8_t*)0x200005a8 = 0;
    *(uint8_t*)0x200005a9 = 0;
    *(uint8_t*)0x200005aa = 0;
    *(uint8_t*)0x200005ab = 0;
    *(uint8_t*)0x200005ac = 0;
    *(uint8_t*)0x200005ad = 0;
    *(uint8_t*)0x200005ae = 0;
    *(uint8_t*)0x200005af = 0;
    *(uint8_t*)0x200005b0 = 0;
    *(uint8_t*)0x200005b1 = 0;
    *(uint8_t*)0x200005b2 = 0;
    *(uint8_t*)0x200005b3 = 0xaa;
    *(uint32_t*)0x200005b4 = 0xcfb;
    *(uint32_t*)0x2000061c = 9;
    *(uint32_t*)0x20000620 = 0x51c;
    *(uint32_t*)0x20000624 = 0x80000001;
    *(uint32_t*)0x20000628 = 4;
    *(uint32_t*)0x2000062c = 1;
    *(uint32_t*)0x20000640 = 0xb0;
    syscall(__NR_getsockopt, r[9], 0x84, 0xe, 0x20000580, 0x20000640);
    break;
  case 34:
    *(uint64_t*)0x200009c0 = 0x20000680;
    memcpy((void*)0x20000680, "\xb2\x91\xa5\x7f\x8c\xa8\xbe\x91\xc8\xe4\x49\x4e"
                              "\xa4\x11\xd0\x54\x3d\x53\x93\x47\x80\xbb\x4f\x97"
                              "\xa9\xdb\x2c\x9b\x70\xdd\x6a\x1c\xd8\xb1\xd0\xee"
                              "\x3c\x12\x9f\x25",
           40);
    *(uint64_t*)0x200009c8 = 0x28;
    *(uint64_t*)0x200009d0 = 0xce;
    *(uint64_t*)0x200009d8 = 7;
    syscall(__NR_kexec_load, 0xffffffffffffffc1, 1, 0x200009c0, 0x160000);
    break;
  case 35:
    syscall(__NR_ioctl, r[9], 0x4b62, 0x20000140);
    break;
  case 36:
    *(uint32_t*)0x20000200 = 0;
    *(uint32_t*)0x20000240 = 2;
    syscall(__NR_getsockopt, -1, 0x84, 0x1b, 0x20000200, 0x20000240);
    break;
  case 37:
    *(uint32_t*)0x20000a00 = 4;
    syscall(__NR_getsockopt, r[9], 0x84, 0x20, 0x20000980, 0x20000a00);
    break;
  case 38:
    syscall(__NR_ptrace, 0x4207, r[8]);
    break;
  case 39:
    *(uint64_t*)0x200000c0 = 0x20000040;
    *(uint64_t*)0x200000c8 = 0xfffffffffffffdb8;
    syscall(__NR_ptrace, 0x4205, r[8], 0x202, 0x200000c0);
    break;
  case 40:
    syscall(__NR_ptrace, 0x12, r[8], 0, 0x20000c00);
    break;
  case 41:
    *(uint32_t*)0x20001600 = 0xe8;
    syscall(__NR_getsockopt, r[9], 0x29, 0x22, 0x20001500, 0x20001600);
    break;
  case 42:
    syscall(__NR_socketpair, 0xa, 0xa, 9, 0x20000a40);
    break;
  case 43:
    memcpy((void*)0x20000300, "\x39\x77\x85\x2f\xfc\x70\xa9\x08\x55\x5e\xd3\x3b"
                              "\x15\xe3\x1b\xc6\x19\xb7\x7b\xeb\x1e\x11\x4d\xb0"
                              "\xf5\x12\x24\x2b\x2c\x0f\xc3\x45\xc3\xd1\xe8\x92"
                              "\xd4\x61\x7d\x0a\x3b\xfe\x91\xac\x56\x03\x44\xcb"
                              "\x16\x23\x96\x5f\xda\x67\x68\x3f\x90\xaf\x16\x4a"
                              "\xb2\x5e\x1a\x96\xad\x16\xd8",
           67);
    syscall(__NR_ptrace, 0xf, r[8], 0x100000000, 0x20000300);
    break;
  case 44:
    *(uint64_t*)0x20001980 = 0x20000080;
    *(uint16_t*)0x20000080 = 0x10;
    *(uint16_t*)0x20000082 = 0;
    *(uint32_t*)0x20000084 = 0x25dfdbff;
    *(uint32_t*)0x20000088 = 0x20014000;
    *(uint32_t*)0x20001988 = 0xc;
    *(uint64_t*)0x20001990 = 0x20001940;
    *(uint64_t*)0x20001940 = 0x200003c0;
    *(uint32_t*)0x200003c0 = 0x10;
    *(uint16_t*)0x200003c4 = 0;
    *(uint16_t*)0x200003c6 = 1;
    *(uint32_t*)0x200003c8 = 0x70bd26;
    *(uint32_t*)0x200003cc = 0x25dfdbfd;
    *(uint64_t*)0x20001948 = 0x10;
    *(uint64_t*)0x20001998 = 1;
    *(uint64_t*)0x200019a0 = 0;
    *(uint64_t*)0x200019a8 = 0;
    *(uint32_t*)0x200019b0 = 0x408c0;
    syscall(__NR_sendmsg, r[9], 0x20001980, 0);
    break;
  }
}

void execute_one()
{
  execute(45);
  collide = 1;
  execute(45);
}

int main()
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  for (;;) {
    int pid = do_sandbox_none();
    int status = 0;
    while (waitpid(pid, &status, __WALL) != pid) {
    }
  }
}