// https://syzkaller.appspot.com/bug?id=d5f63be97bcf572595613d19f9b82475e37c9026
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <sched.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/resource.h>
#include <sys/stat.h>
#include <sys/swap.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

#include <linux/capability.h>
#include <linux/falloc.h>
#include <linux/futex.h>

#ifndef __NR_bpf
#define __NR_bpf 321
#endif

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 void thread_start(void* (*fn)(void*), void* arg)
{
  pthread_t th;
  pthread_attr_t attr;
  pthread_attr_init(&attr);
  pthread_attr_setstacksize(&attr, 128 << 10);
  int i = 0;
  for (; i < 100; i++) {
    if (pthread_create(&th, &attr, fn, arg) == 0) {
      pthread_attr_destroy(&attr);
      return;
    }
    if (errno == EAGAIN) {
      usleep(50);
      continue;
    }
    break;
  }
  exit(1);
}

#define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len)               \
  *(type*)(addr) =                                                             \
      htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) |           \
            (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))

typedef struct {
  int state;
} event_t;

static void event_init(event_t* ev)
{
  ev->state = 0;
}

static void event_reset(event_t* ev)
{
  ev->state = 0;
}

static void event_set(event_t* ev)
{
  if (ev->state)
    exit(1);
  __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE);
  syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000);
}

static void event_wait(event_t* ev)
{
  while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0);
}

static int event_isset(event_t* ev)
{
  return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE);
}

static int event_timedwait(event_t* ev, uint64_t timeout)
{
  uint64_t start = current_time_ms();
  uint64_t now = start;
  for (;;) {
    uint64_t remain = timeout - (now - start);
    struct timespec ts;
    ts.tv_sec = remain / 1000;
    ts.tv_nsec = (remain % 1000) * 1000 * 1000;
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts);
    if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
      return 1;
    now = current_time_ms();
    if (now - start > timeout)
      return 0;
  }
}

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 int runcmdline(char* cmdline)
{
  int ret = system(cmdline);
  if (ret) {
  }
  return ret;
}

#define MAX_FDS 30

static void setup_gadgetfs();
static void setup_binderfs();
static void setup_fusectl();
static void sandbox_common_mount_tmpfs(void)
{
  write_file("/proc/sys/fs/mount-max", "100000");
  if (mkdir("./syz-tmp", 0777))
    exit(1);
  if (mount("", "./syz-tmp", "tmpfs", 0, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot", 0777))
    exit(1);
  if (mkdir("./syz-tmp/newroot/dev", 0700))
    exit(1);
  unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE;
  if (mount("/dev", "./syz-tmp/newroot/dev", NULL, bind_mount_flags, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot/proc", 0700))
    exit(1);
  if (mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot/selinux", 0700))
    exit(1);
  const char* selinux_path = "./syz-tmp/newroot/selinux";
  if (mount("/selinux", selinux_path, NULL, bind_mount_flags, NULL)) {
    if (errno != ENOENT)
      exit(1);
    if (mount("/sys/fs/selinux", selinux_path, NULL, bind_mount_flags, NULL) &&
        errno != ENOENT)
      exit(1);
  }
  if (mkdir("./syz-tmp/newroot/sys", 0700))
    exit(1);
  if (mount("/sys", "./syz-tmp/newroot/sys", 0, bind_mount_flags, NULL))
    exit(1);
  if (mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL,
            bind_mount_flags, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL,
            bind_mount_flags, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mount("/proc/sys/fs/binfmt_misc",
            "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, bind_mount_flags,
            NULL) &&
      errno != ENOENT)
    exit(1);
  if (mkdir("./syz-tmp/newroot/syz-inputs", 0700))
    exit(1);
  if (mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL,
            bind_mount_flags | MS_RDONLY, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mkdir("./syz-tmp/pivot", 0777))
    exit(1);
  if (syscall(SYS_pivot_root, "./syz-tmp", "./syz-tmp/pivot")) {
    if (chdir("./syz-tmp"))
      exit(1);
  } else {
    if (chdir("/"))
      exit(1);
    if (umount2("./pivot", MNT_DETACH))
      exit(1);
  }
  if (chroot("./newroot"))
    exit(1);
  if (chdir("/"))
    exit(1);
  setup_gadgetfs();
  setup_binderfs();
  setup_fusectl();
}

static void setup_gadgetfs()
{
  if (mkdir("/dev/gadgetfs", 0777)) {
  }
  if (mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL)) {
  }
}

static void setup_fusectl()
{
  if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) {
  }
}

static void setup_binderfs()
{
  if (mkdir("/dev/binderfs", 0777)) {
  }
  if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) {
  }
  if (symlink("/dev/binderfs", "./binderfs")) {
  }
}

static void loop();

static void sandbox_common()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  if (getppid() == 1)
    exit(1);
  struct rlimit rlim;
  rlim.rlim_cur = rlim.rlim_max = (200 << 20);
  setrlimit(RLIMIT_AS, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 32 << 20;
  setrlimit(RLIMIT_MEMLOCK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 136 << 20;
  setrlimit(RLIMIT_FSIZE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 1 << 20;
  setrlimit(RLIMIT_STACK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 128 << 20;
  setrlimit(RLIMIT_CORE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 256;
  setrlimit(RLIMIT_NOFILE, &rlim);
  if (unshare(CLONE_NEWNS)) {
  }
  if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) {
  }
  if (unshare(CLONE_NEWIPC)) {
  }
  if (unshare(0x02000000)) {
  }
  if (unshare(CLONE_NEWUTS)) {
  }
  if (unshare(CLONE_SYSVSEM)) {
  }
  typedef struct {
    const char* name;
    const char* value;
  } sysctl_t;
  static const sysctl_t sysctls[] = {
      {"/proc/sys/kernel/shmmax", "16777216"},
      {"/proc/sys/kernel/shmall", "536870912"},
      {"/proc/sys/kernel/shmmni", "1024"},
      {"/proc/sys/kernel/msgmax", "8192"},
      {"/proc/sys/kernel/msgmni", "1024"},
      {"/proc/sys/kernel/msgmnb", "1024"},
      {"/proc/sys/kernel/sem", "1024 1048576 500 1024"},
  };
  unsigned i;
  for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++)
    write_file(sysctls[i].name, sysctls[i].value);
}

static int wait_for_loop(int pid)
{
  if (pid < 0)
    exit(1);
  int status = 0;
  while (waitpid(-1, &status, __WALL) != pid) {
  }
  return WEXITSTATUS(status);
}

static void drop_caps(void)
{
  struct __user_cap_header_struct cap_hdr = {};
  struct __user_cap_data_struct cap_data[2] = {};
  cap_hdr.version = _LINUX_CAPABILITY_VERSION_3;
  cap_hdr.pid = getpid();
  if (syscall(SYS_capget, &cap_hdr, &cap_data))
    exit(1);
  const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE);
  cap_data[0].effective &= ~drop;
  cap_data[0].permitted &= ~drop;
  cap_data[0].inheritable &= ~drop;
  if (syscall(SYS_capset, &cap_hdr, &cap_data))
    exit(1);
}

static int do_sandbox_none(void)
{
  if (unshare(CLONE_NEWPID)) {
  }
  int pid = fork();
  if (pid != 0)
    return wait_for_loop(pid);
  sandbox_common();
  drop_caps();
  if (unshare(CLONE_NEWNET)) {
  }
  write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535");
  sandbox_common_mount_tmpfs();
  loop();
  exit(1);
}

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 close_fds()
{
  for (int fd = 3; fd < MAX_FDS; fd++)
    close(fd);
}

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"},
      {"/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)
    ;
}

#define SWAP_FILE "./swap-file"
#define SWAP_FILE_SIZE (128 * 1000 * 1000)

static const char* setup_swap()
{
  swapoff(SWAP_FILE);
  unlink(SWAP_FILE);
  int fd = open(SWAP_FILE, O_CREAT | O_WRONLY | O_CLOEXEC, 0600);
  if (fd == -1)
    return "swap file open failed";
  fallocate(fd, FALLOC_FL_ZERO_RANGE, 0, SWAP_FILE_SIZE);
  close(fd);
  char cmdline[64];
  sprintf(cmdline, "mkswap %s", SWAP_FILE);
  if (runcmdline(cmdline))
    return "mkswap failed";
  if (swapon(SWAP_FILE, SWAP_FLAG_PREFER) == 1)
    return "swapon failed";
  return NULL;
}

struct thread_t {
  int created, call;
  event_t ready, done;
};

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

static void* thr(void* arg)
{
  struct thread_t* th = (struct thread_t*)arg;
  for (;;) {
    event_wait(&th->ready);
    event_reset(&th->ready);
    execute_call(th->call);
    __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
    event_set(&th->done);
  }
  return 0;
}

static void execute_one(void)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  int i, call, thread;
  for (call = 0; call < 9; call++) {
    for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0]));
         thread++) {
      struct thread_t* th = &threads[thread];
      if (!th->created) {
        th->created = 1;
        event_init(&th->ready);
        event_init(&th->done);
        event_set(&th->done);
        thread_start(thr, th);
      }
      if (!event_isset(&th->done))
        continue;
      event_reset(&th->done);
      th->call = call;
      __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
      event_set(&th->ready);
      if (call == 6)
        break;
      event_timedwait(&th->done, 50);
      break;
    }
  }
  for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
    sleep_ms(1);
  close_fds();
}

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[5] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff, 0xffffffffffffffff};

void execute_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    //  bpf$PROG_LOAD arguments: [
    //    cmd: const = 0x5 (8 bytes)
    //    arg: ptr[in, bpf_prog_t[flags[bpf_prog_type, int32],
    //    bpf_prog_attach_types, bpf_btf_id[opt], fd_bpf_prog[opt]]] {
    //      bpf_prog_t[flags[bpf_prog_type, int32], bpf_prog_attach_types,
    //      bpf_btf_id[opt], fd_bpf_prog[opt]] {
    //        type: bpf_prog_type = 0x13 (4 bytes)
    //        ninsn: bytesize8 = 0xc (4 bytes)
    //        insns: ptr[in, bpf_instructions] {
    //          union bpf_instructions {
    //            framed: bpf_framed_program {
    //              initr0: bpf_insn_init_r0 {
    //                code: const = 0x18 (1 bytes)
    //                dst: const = 0x0 (0 bytes)
    //                src: const = 0x0 (1 bytes)
    //                off: const = 0x0 (2 bytes)
    //                imm: int32 = 0x0 (4 bytes)
    //                code2: const = 0x0 (1 bytes)
    //                regs2: const = 0x0 (1 bytes)
    //                off2: const = 0x0 (2 bytes)
    //                imm2: int32 = 0x0 (4 bytes)
    //              }
    //              body: array[bpf_insn] {
    //                union bpf_insn {
    //                  ringbuf_output: bpf_insn_ringbuf_output {
    //                    insn1: bpf_insn_map_fd_t[const[BPF_REG_1, int8:4],
    //                    tail_call_map] {
    //                      code: const = 0x18 (1 bytes)
    //                      dst: const = 0x1 (0 bytes)
    //                      src: const = 0x1 (1 bytes)
    //                      off: const = 0x0 (2 bytes)
    //                      imm: tail_call_map (resource)
    //                      code2: const = 0x0 (1 bytes)
    //                      regs2: const = 0x0 (1 bytes)
    //                      off2: const = 0x0 (2 bytes)
    //                      imm2: const = 0x0 (4 bytes)
    //                    }
    //                    insn2: bpf_insn_alu_t[BPF_ALU64, BPF_K0, BPF_MOV0,
    //                    const[BPF_REG_8, int8:4], const[0, int8:4], const[0,
    //                    int16], int32] {
    //                      code_class: int8 = 0x7 (0 bytes)
    //                      code_s: int8 = 0x0 (0 bytes)
    //                      code_op: int8 = 0xb (1 bytes)
    //                      dst: const = 0x8 (0 bytes)
    //                      src: const = 0x0 (1 bytes)
    //                      off: const = 0x0 (2 bytes)
    //                      imm: int32 = 0x13 (4 bytes)
    //                    }
    //                    insn3: bpf_insn_ldst_t[BPF_STX, BPF_DW0, BPF_MEM0,
    //                    const[BPF_REG_10, int8:4], const[BPF_REG_8, int8:4],
    //                    const[-8, int16], const[0, int32]] {
    //                      code_class: int8 = 0x3 (0 bytes)
    //                      code_size: int8 = 0x3 (0 bytes)
    //                      code_mode: int8 = 0x3 (1 bytes)
    //                      dst: const = 0xa (0 bytes)
    //                      src: const = 0x8 (1 bytes)
    //                      off: const = 0xfff8 (2 bytes)
    //                      imm: const = 0x0 (4 bytes)
    //                    }
    //                    insn4: bpf_insn_alu_t[BPF_ALU64, BPF_X0, BPF_MOV0,
    //                    const[BPF_REG_2, int8:4], const[BPF_REG_10, int8:4],
    //                    const[0, int16], const[0, int32]] {
    //                      code_class: int8 = 0x7 (0 bytes)
    //                      code_s: int8 = 0x1 (0 bytes)
    //                      code_op: int8 = 0xb (1 bytes)
    //                      dst: const = 0x2 (0 bytes)
    //                      src: const = 0xa (1 bytes)
    //                      off: const = 0x0 (2 bytes)
    //                      imm: const = 0x0 (4 bytes)
    //                    }
    //                    insn5: bpf_insn_alu_t[BPF_ALU64, BPF_K0, BPF_ADD0,
    //                    const[BPF_REG_2, int8:4], const[0, int8:4], const[0,
    //                    int16], const[-8, int32]] {
    //                      code_class: int8 = 0x7 (0 bytes)
    //                      code_s: int8 = 0x0 (0 bytes)
    //                      code_op: int8 = 0x0 (1 bytes)
    //                      dst: const = 0x2 (0 bytes)
    //                      src: const = 0x0 (1 bytes)
    //                      off: const = 0x0 (2 bytes)
    //                      imm: const = 0xfffffff8 (4 bytes)
    //                    }
    //                    insn6: bpf_insn_alu_t[BPF_ALU64, BPF_K0, BPF_MOV0,
    //                    const[BPF_REG_3, int8:4], const[0, int8:4], const[0,
    //                    int16], const[8, int32]] {
    //                      code_class: int8 = 0x7 (0 bytes)
    //                      code_s: int8 = 0x0 (0 bytes)
    //                      code_op: int8 = 0xb (1 bytes)
    //                      dst: const = 0x3 (0 bytes)
    //                      src: const = 0x0 (1 bytes)
    //                      off: const = 0x0 (2 bytes)
    //                      imm: const = 0x8 (4 bytes)
    //                    }
    //                    insn7: bpf_insn_alu_t[BPF_ALU64, BPF_K0, BPF_MOV0,
    //                    const[BPF_REG_4, int8:4], const[0, int8:4], const[0,
    //                    int16], flags[bpf_ringbuf_wakeup_flags, int32]] {
    //                      code_class: int8 = 0x7 (0 bytes)
    //                      code_s: int8 = 0x0 (0 bytes)
    //                      code_op: int8 = 0xb (1 bytes)
    //                      dst: const = 0x4 (0 bytes)
    //                      src: const = 0x0 (1 bytes)
    //                      off: const = 0x0 (2 bytes)
    //                      imm: bpf_ringbuf_wakeup_flags = 0x0 (4 bytes)
    //                    }
    //                    insn8:
    //                    bpf_insn_call_helper_t[const[BPF_FUNC_ringbuf_output,
    //                    int32]] {
    //                      code: const = 0x85 (1 bytes)
    //                      regs: const = 0x0 (1 bytes)
    //                      off: const = 0x0 (2 bytes)
    //                      func: const = 0x3 (4 bytes)
    //                    }
    //                  }
    //                }
    //              }
    //              exit: bpf_insn_exit {
    //                code: const = 0x95 (1 bytes)
    //                regs: const = 0x0 (1 bytes)
    //                off: const = 0x0 (2 bytes)
    //                imm: const = 0x0 (4 bytes)
    //              }
    //            }
    //          }
    //        }
    //        license: nil
    //        loglev: int32 = 0x0 (4 bytes)
    //        logsize: len = 0x0 (4 bytes)
    //        log: nil
    //        kern_version: bpf_kern_version = 0x0 (4 bytes)
    //        flags: bpf_prog_load_flags = 0x0 (4 bytes)
    //        prog_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    //        00} (length 0x10) prog_ifindex: ifindex (resource)
    //        expected_attach_type: union bpf_prog_attach_types {
    //          fallback: bpf_attach_types = 0x2b (4 bytes)
    //        }
    //        btf_fd: fd_btf (resource)
    //        func_info_rec_size: const = 0x0 (4 bytes)
    //        func_info: nil
    //        func_info_cnt: len = 0x0 (4 bytes)
    //        line_info_rec_size: const = 0x0 (4 bytes)
    //        line_info: nil
    //        line_info_cnt: len = 0x0 (4 bytes)
    //        attach_btf_id: bpf_btf_id (resource)
    //        attach_prog_fd: fd_bpf_prog (resource)
    //        core_relo_cnt: len = 0x0 (4 bytes)
    //        fd_array: nil
    //        core_relos: nil
    //        core_relo_rec_size: const = 0x0 (4 bytes)
    //        log_true_size: int32 = 0x0 (4 bytes)
    //        prog_token_fd: union _bpf_prog_t[flags[bpf_prog_type, int32],
    //        bpf_prog_attach_types, bpf_btf_id[opt],
    //        fd_bpf_prog[opt]]_prog_token_fd_wrapper {
    //          void: buffer: {} (length 0x0)
    //        }
    //        pad: union _bpf_prog_t[flags[bpf_prog_type, int32],
    //        bpf_prog_attach_types, bpf_btf_id[opt],
    //        fd_bpf_prog[opt]]_pad_wrapper {
    //          value: const = 0x0 (4 bytes)
    //        }
    //      }
    //    }
    //    size: len = 0x94 (8 bytes)
    //  ]
    //  returns fd_bpf_prog
    NONFAILING(*(uint32_t*)0x200000000180 = 0x13);
    NONFAILING(*(uint32_t*)0x200000000184 = 0xc);
    NONFAILING(*(uint64_t*)0x200000000188 = 0x200000000440);
    NONFAILING(*(uint8_t*)0x200000000440 = 0x18);
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000441, 0, 0, 4));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000441, 0, 4, 4));
    NONFAILING(*(uint16_t*)0x200000000442 = 0);
    NONFAILING(*(uint32_t*)0x200000000444 = 0);
    NONFAILING(*(uint8_t*)0x200000000448 = 0);
    NONFAILING(*(uint8_t*)0x200000000449 = 0);
    NONFAILING(*(uint16_t*)0x20000000044a = 0);
    NONFAILING(*(uint32_t*)0x20000000044c = 0);
    NONFAILING(*(uint8_t*)0x200000000450 = 0x18);
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000451, 1, 0, 4));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000451, 1, 4, 4));
    NONFAILING(*(uint16_t*)0x200000000452 = 0);
    NONFAILING(*(uint32_t*)0x200000000454 = -1);
    NONFAILING(*(uint8_t*)0x200000000458 = 0);
    NONFAILING(*(uint8_t*)0x200000000459 = 0);
    NONFAILING(*(uint16_t*)0x20000000045a = 0);
    NONFAILING(*(uint32_t*)0x20000000045c = 0);
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000460, 7, 0, 3));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000460, 0, 3, 1));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000460, 0xb, 4, 4));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000461, 8, 0, 4));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000461, 0, 4, 4));
    NONFAILING(*(uint16_t*)0x200000000462 = 0);
    NONFAILING(*(uint32_t*)0x200000000464 = 0x13);
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000468, 3, 0, 3));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000468, 3, 3, 2));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000468, 3, 5, 3));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000469, 0xa, 0, 4));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000469, 8, 4, 4));
    NONFAILING(*(uint16_t*)0x20000000046a = 0xfff8);
    NONFAILING(*(uint32_t*)0x20000000046c = 0);
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000470, 7, 0, 3));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000470, 1, 3, 1));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000470, 0xb, 4, 4));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000471, 2, 0, 4));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000471, 0xa, 4, 4));
    NONFAILING(*(uint16_t*)0x200000000472 = 0);
    NONFAILING(*(uint32_t*)0x200000000474 = 0);
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000478, 7, 0, 3));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000478, 0, 3, 1));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000478, 0, 4, 4));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000479, 2, 0, 4));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000479, 0, 4, 4));
    NONFAILING(*(uint16_t*)0x20000000047a = 0);
    NONFAILING(*(uint32_t*)0x20000000047c = 0xfffffff8);
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000480, 7, 0, 3));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000480, 0, 3, 1));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000480, 0xb, 4, 4));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000481, 3, 0, 4));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000481, 0, 4, 4));
    NONFAILING(*(uint16_t*)0x200000000482 = 0);
    NONFAILING(*(uint32_t*)0x200000000484 = 8);
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000488, 7, 0, 3));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000488, 0, 3, 1));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000488, 0xb, 4, 4));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000489, 4, 0, 4));
    NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000489, 0, 4, 4));
    NONFAILING(*(uint16_t*)0x20000000048a = 0);
    NONFAILING(*(uint32_t*)0x20000000048c = 0);
    NONFAILING(*(uint8_t*)0x200000000490 = 0x85);
    NONFAILING(*(uint8_t*)0x200000000491 = 0);
    NONFAILING(*(uint16_t*)0x200000000492 = 0);
    NONFAILING(*(uint32_t*)0x200000000494 = 3);
    NONFAILING(*(uint8_t*)0x200000000498 = 0x95);
    NONFAILING(*(uint8_t*)0x200000000499 = 0);
    NONFAILING(*(uint16_t*)0x20000000049a = 0);
    NONFAILING(*(uint32_t*)0x20000000049c = 0);
    NONFAILING(*(uint64_t*)0x200000000190 = 0);
    NONFAILING(*(uint32_t*)0x200000000198 = 0);
    NONFAILING(*(uint32_t*)0x20000000019c = 0);
    NONFAILING(*(uint64_t*)0x2000000001a0 = 0);
    NONFAILING(*(uint32_t*)0x2000000001a8 = 0);
    NONFAILING(*(uint32_t*)0x2000000001ac = 0);
    NONFAILING(memset((void*)0x2000000001b0, 0, 16));
    NONFAILING(*(uint32_t*)0x2000000001c0 = 0);
    NONFAILING(*(uint32_t*)0x2000000001c4 = 0x2b);
    NONFAILING(*(uint32_t*)0x2000000001c8 = -1);
    NONFAILING(*(uint32_t*)0x2000000001cc = 0);
    NONFAILING(*(uint64_t*)0x2000000001d0 = 0);
    NONFAILING(*(uint32_t*)0x2000000001d8 = 0);
    NONFAILING(*(uint32_t*)0x2000000001dc = 0);
    NONFAILING(*(uint64_t*)0x2000000001e0 = 0);
    NONFAILING(*(uint32_t*)0x2000000001e8 = 0);
    NONFAILING(*(uint32_t*)0x2000000001ec = 0);
    NONFAILING(*(uint32_t*)0x2000000001f0 = -1);
    NONFAILING(*(uint32_t*)0x2000000001f4 = 0);
    NONFAILING(*(uint64_t*)0x2000000001f8 = 0);
    NONFAILING(*(uint64_t*)0x200000000200 = 0);
    NONFAILING(*(uint32_t*)0x200000000208 = 0);
    NONFAILING(*(uint32_t*)0x20000000020c = 0);
    NONFAILING(*(uint32_t*)0x200000000210 = 0);
    syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000000180ul, /*size=*/0x94ul);
    break;
  case 1:
    //  bpf$MAP_CREATE arguments: [
    //    cmd: const = 0x0 (8 bytes)
    //    arg: ptr[inout, array[ANYUNION]] {
    //      array[ANYUNION] {
    //        union ANYUNION {
    //          ANYBLOB: buffer: {02 00 00 00 04 00 00 00 06 00 00 00 05}
    //          (length 0xd)
    //        }
    //      }
    //    }
    //    size: len = 0x48 (8 bytes)
    //  ]
    //  returns fd_bpf_map
    NONFAILING(memcpy((void*)0x200000000340,
                      "\x02\x00\x00\x00\x04\x00\x00\x00\x06\x00\x00\x00\x05",
                      13));
    res = syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x200000000340ul,
                  /*size=*/0x48ul);
    if (res != -1)
      r[0] = res;
    break;
  case 2:
    //  bpf$PROG_LOAD arguments: [
    //    cmd: const = 0x5 (8 bytes)
    //    arg: ptr[in, bpf_prog_t[flags[bpf_prog_type, int32],
    //    bpf_prog_attach_types, bpf_btf_id[opt], fd_bpf_prog[opt]]] {
    //      bpf_prog_t[flags[bpf_prog_type, int32], bpf_prog_attach_types,
    //      bpf_btf_id[opt], fd_bpf_prog[opt]] {
    //        type: bpf_prog_type = 0x0 (4 bytes)
    //        ninsn: bytesize8 = 0xc (4 bytes)
    //        insns: ptr[inout, array[ANYUNION]] {
    //          array[ANYUNION] {
    //            union ANYUNION {
    //              ANYBLOB: buffer: {18 00 00 00 01 07 00 00 00 00 00 00 00 00
    //              26 00 18 11 00 00} (length 0x14)
    //            }
    //            union ANYUNION {
    //              ANYRES32: ANYRES32 (resource)
    //            }
    //          }
    //        }
    //        license: nil
    //        loglev: int32 = 0x0 (4 bytes)
    //        logsize: len = 0x0 (4 bytes)
    //        log: nil
    //        kern_version: bpf_kern_version = 0x0 (4 bytes)
    //        flags: bpf_prog_load_flags = 0x0 (4 bytes)
    //        prog_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    //        00} (length 0x10) prog_ifindex: ifindex (resource)
    //        expected_attach_type: union bpf_prog_attach_types {
    //          fallback: bpf_attach_types = 0x0 (4 bytes)
    //        }
    //        btf_fd: fd_btf (resource)
    //        func_info_rec_size: const = 0x0 (4 bytes)
    //        func_info: nil
    //        func_info_cnt: len = 0x0 (4 bytes)
    //        line_info_rec_size: const = 0x0 (4 bytes)
    //        line_info: nil
    //        line_info_cnt: len = 0x0 (4 bytes)
    //        attach_btf_id: bpf_btf_id (resource)
    //        attach_prog_fd: fd_bpf_prog (resource)
    //        core_relo_cnt: len = 0x0 (4 bytes)
    //        fd_array: nil
    //        core_relos: nil
    //        core_relo_rec_size: const = 0x0 (4 bytes)
    //        log_true_size: int32 = 0x0 (4 bytes)
    //        prog_token_fd: union _bpf_prog_t[flags[bpf_prog_type, int32],
    //        bpf_prog_attach_types, bpf_btf_id[opt],
    //        fd_bpf_prog[opt]]_prog_token_fd_wrapper {
    //          void: buffer: {} (length 0x0)
    //        }
    //        pad: union _bpf_prog_t[flags[bpf_prog_type, int32],
    //        bpf_prog_attach_types, bpf_btf_id[opt],
    //        fd_bpf_prog[opt]]_pad_wrapper {
    //          value: const = 0x0 (4 bytes)
    //        }
    //      }
    //    }
    //    size: len = 0x94 (8 bytes)
    //  ]
    //  returns fd_bpf_prog
    NONFAILING(*(uint32_t*)0x2000000000c0 = 0);
    NONFAILING(*(uint32_t*)0x2000000000c4 = 0xc);
    NONFAILING(*(uint64_t*)0x2000000000c8 = 0x200000000440);
    NONFAILING(memcpy((void*)0x200000000440,
                      "\x18\x00\x00\x00\x01\x07\x00\x00\x00\x00\x00\x00\x00\x00"
                      "\x26\x00\x18\x11\x00\x00",
                      20));
    NONFAILING(*(uint32_t*)0x200000000454 = r[0]);
    NONFAILING(*(uint64_t*)0x2000000000d0 = 0);
    NONFAILING(*(uint32_t*)0x2000000000d8 = 0);
    NONFAILING(*(uint32_t*)0x2000000000dc = 0);
    NONFAILING(*(uint64_t*)0x2000000000e0 = 0);
    NONFAILING(*(uint32_t*)0x2000000000e8 = 0);
    NONFAILING(*(uint32_t*)0x2000000000ec = 0);
    NONFAILING(memset((void*)0x2000000000f0, 0, 16));
    NONFAILING(*(uint32_t*)0x200000000100 = 0);
    NONFAILING(*(uint32_t*)0x200000000104 = 0);
    NONFAILING(*(uint32_t*)0x200000000108 = -1);
    NONFAILING(*(uint32_t*)0x20000000010c = 0);
    NONFAILING(*(uint64_t*)0x200000000110 = 0);
    NONFAILING(*(uint32_t*)0x200000000118 = 0);
    NONFAILING(*(uint32_t*)0x20000000011c = 0);
    NONFAILING(*(uint64_t*)0x200000000120 = 0);
    NONFAILING(*(uint32_t*)0x200000000128 = 0);
    NONFAILING(*(uint32_t*)0x20000000012c = 0);
    NONFAILING(*(uint32_t*)0x200000000130 = 0);
    NONFAILING(*(uint32_t*)0x200000000134 = 0);
    NONFAILING(*(uint64_t*)0x200000000138 = 0);
    NONFAILING(*(uint64_t*)0x200000000140 = 0);
    NONFAILING(*(uint32_t*)0x200000000148 = 0);
    NONFAILING(*(uint32_t*)0x20000000014c = 0);
    NONFAILING(*(uint32_t*)0x200000000150 = 0);
    syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x2000000000c0ul, /*size=*/0x94ul);
    break;
  case 3:
    //  bpf$PROG_LOAD arguments: [
    //    cmd: const = 0x5 (8 bytes)
    //    arg: ptr[in, bpf_prog_t[flags[bpf_prog_type, int32],
    //    bpf_prog_attach_types, bpf_btf_id[opt], fd_bpf_prog[opt]]] {
    //      bpf_prog_t[flags[bpf_prog_type, int32], bpf_prog_attach_types,
    //      bpf_btf_id[opt], fd_bpf_prog[opt]] {
    //        type: bpf_prog_type = 0x1 (4 bytes)
    //        ninsn: bytesize8 = 0xc (4 bytes)
    //        insns: ptr[inout, array[ANYUNION]] {
    //          array[ANYUNION] {
    //          }
    //        }
    //        license: ptr[in, buffer] {
    //          buffer: {47 50 4c 00} (length 0x4)
    //        }
    //        loglev: int32 = 0x0 (4 bytes)
    //        logsize: len = 0x0 (4 bytes)
    //        log: nil
    //        kern_version: bpf_kern_version = 0x0 (4 bytes)
    //        flags: bpf_prog_load_flags = 0x0 (4 bytes)
    //        prog_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    //        00} (length 0x10) prog_ifindex: ifindex (resource)
    //        expected_attach_type: union bpf_prog_attach_types {
    //          fallback: bpf_attach_types = 0x10 (4 bytes)
    //        }
    //        btf_fd: fd_btf (resource)
    //        func_info_rec_size: const = 0x0 (4 bytes)
    //        func_info: nil
    //        func_info_cnt: len = 0x0 (4 bytes)
    //        line_info_rec_size: const = 0x0 (4 bytes)
    //        line_info: nil
    //        line_info_cnt: len = 0x0 (4 bytes)
    //        attach_btf_id: bpf_btf_id (resource)
    //        attach_prog_fd: fd_bpf_prog (resource)
    //        core_relo_cnt: len = 0x0 (4 bytes)
    //        fd_array: nil
    //        core_relos: nil
    //        core_relo_rec_size: const = 0x0 (4 bytes)
    //        log_true_size: int32 = 0x0 (4 bytes)
    //        prog_token_fd: union _bpf_prog_t[flags[bpf_prog_type, int32],
    //        bpf_prog_attach_types, bpf_btf_id[opt],
    //        fd_bpf_prog[opt]]_prog_token_fd_wrapper {
    //          void: buffer: {} (length 0x0)
    //        }
    //        pad: union _bpf_prog_t[flags[bpf_prog_type, int32],
    //        bpf_prog_attach_types, bpf_btf_id[opt],
    //        fd_bpf_prog[opt]]_pad_wrapper {
    //          value: const = 0x0 (4 bytes)
    //        }
    //      }
    //    }
    //    size: len = 0x94 (8 bytes)
    //  ]
    //  returns fd_bpf_prog
    NONFAILING(*(uint32_t*)0x200000000380 = 1);
    NONFAILING(*(uint32_t*)0x200000000384 = 0xc);
    NONFAILING(*(uint64_t*)0x200000000388 = 0x200000000440);
    NONFAILING(*(uint64_t*)0x200000000390 = 0x200000000000);
    NONFAILING(memcpy((void*)0x200000000000, "GPL\000", 4));
    NONFAILING(*(uint32_t*)0x200000000398 = 0);
    NONFAILING(*(uint32_t*)0x20000000039c = 0);
    NONFAILING(*(uint64_t*)0x2000000003a0 = 0);
    NONFAILING(*(uint32_t*)0x2000000003a8 = 0);
    NONFAILING(*(uint32_t*)0x2000000003ac = 0);
    NONFAILING(memset((void*)0x2000000003b0, 0, 16));
    NONFAILING(*(uint32_t*)0x2000000003c0 = 0);
    NONFAILING(*(uint32_t*)0x2000000003c4 = 0x10);
    NONFAILING(*(uint32_t*)0x2000000003c8 = -1);
    NONFAILING(*(uint32_t*)0x2000000003cc = 0);
    NONFAILING(*(uint64_t*)0x2000000003d0 = 0);
    NONFAILING(*(uint32_t*)0x2000000003d8 = 0);
    NONFAILING(*(uint32_t*)0x2000000003dc = 0);
    NONFAILING(*(uint64_t*)0x2000000003e0 = 0);
    NONFAILING(*(uint32_t*)0x2000000003e8 = 0);
    NONFAILING(*(uint32_t*)0x2000000003ec = 0);
    NONFAILING(*(uint32_t*)0x2000000003f0 = 0);
    NONFAILING(*(uint32_t*)0x2000000003f4 = 0);
    NONFAILING(*(uint64_t*)0x2000000003f8 = 0);
    NONFAILING(*(uint64_t*)0x200000000400 = 0);
    NONFAILING(*(uint32_t*)0x200000000408 = 0);
    NONFAILING(*(uint32_t*)0x20000000040c = 0);
    NONFAILING(*(uint32_t*)0x200000000410 = 0);
    res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000000380ul,
                  /*size=*/0x94ul);
    if (res != -1)
      r[1] = res;
    break;
  case 4:
    //  socketpair$unix arguments: [
    //    domain: const = 0x1 (8 bytes)
    //    type: unix_socket_type = 0x2 (8 bytes)
    //    proto: const = 0x0 (4 bytes)
    //    fds: ptr[out, unix_pair] {
    //      unix_pair {
    //        fd0: sock_unix (resource)
    //        fd1: sock_unix (resource)
    //      }
    //    }
    //  ]
    res = syscall(__NR_socketpair, /*domain=*/1ul, /*type=SOCK_DGRAM*/ 2ul,
                  /*proto=*/0, /*fds=*/0x200000000080ul);
    if (res != -1)
      NONFAILING(r[2] = *(uint32_t*)0x200000000080);
    break;
  case 5:
    //  bpf$MAP_CREATE_TAIL_CALL arguments: [
    //    cmd: const = 0x0 (8 bytes)
    //    arg: ptr[in, bpf_map_create_arg_t[const[BPF_MAP_TYPE_PROG_ARRAY,
    //    int32], const[4, int32], const[4, int32], const[10, int32], const[0,
    //    int32], const[0, int64]]] {
    //      bpf_map_create_arg_t[const[BPF_MAP_TYPE_PROG_ARRAY, int32], const[4,
    //      int32], const[4, int32], const[10, int32], const[0, int32], const[0,
    //      int64]] {
    //        type: const = 0x3 (4 bytes)
    //        ksize: const = 0x4 (4 bytes)
    //        vsize: const = 0x4 (4 bytes)
    //        max: const = 0xa (4 bytes)
    //        flags: const = 0x0 (4 bytes)
    //        inner: fd_bpf_map (resource)
    //        node: int32 = 0x0 (4 bytes)
    //        map_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    //        00} (length 0x10) map_ifindex: ifindex (resource) btf_fd: fd_btf
    //        (resource) btf_key_type_id: int32 = 0x0 (4 bytes)
    //        btf_value_type_id: int32 = 0x0 (4 bytes)
    //        btf_vmlinux_type_id: int32 = 0x0 (4 bytes)
    //        map_extra: const = 0x0 (8 bytes)
    //        value_type_btf_obj_fd: union
    //        _bpf_map_create_arg_t[const[BPF_MAP_TYPE_PROG_ARRAY, int32],
    //        const[4, int32], const[4, int32], const[10, int32], const[0,
    //        int32], const[0, int64]]_value_type_btf_obj_fd_wrapper {
    //          void: buffer: {} (length 0x0)
    //        }
    //        pad1: union _bpf_map_create_arg_t[const[BPF_MAP_TYPE_PROG_ARRAY,
    //        int32], const[4, int32], const[4, int32], const[10, int32],
    //        const[0, int32], const[0, int64]]_pad1_wrapper {
    //          value: const = 0x0 (4 bytes)
    //        }
    //        map_token_fd: union
    //        _bpf_map_create_arg_t[const[BPF_MAP_TYPE_PROG_ARRAY, int32],
    //        const[4, int32], const[4, int32], const[10, int32], const[0,
    //        int32], const[0, int64]]_map_token_fd_wrapper {
    //          void: buffer: {} (length 0x0)
    //        }
    //        pad2: union _bpf_map_create_arg_t[const[BPF_MAP_TYPE_PROG_ARRAY,
    //        int32], const[4, int32], const[4, int32], const[10, int32],
    //        const[0, int32], const[0, int64]]_pad2_wrapper {
    //          value: const = 0x0 (4 bytes)
    //        }
    //      }
    //    }
    //    size: len = 0x50 (8 bytes)
    //  ]
    //  returns tail_call_map_fd
    NONFAILING(*(uint32_t*)0x2000000009c0 = 3);
    NONFAILING(*(uint32_t*)0x2000000009c4 = 4);
    NONFAILING(*(uint32_t*)0x2000000009c8 = 4);
    NONFAILING(*(uint32_t*)0x2000000009cc = 0xa);
    NONFAILING(*(uint32_t*)0x2000000009d0 = 0);
    NONFAILING(*(uint32_t*)0x2000000009d4 = 0);
    NONFAILING(*(uint32_t*)0x2000000009d8 = 0);
    NONFAILING(memset((void*)0x2000000009dc, 0, 16));
    NONFAILING(*(uint32_t*)0x2000000009ec = 0);
    NONFAILING(*(uint32_t*)0x2000000009f0 = 0);
    NONFAILING(*(uint32_t*)0x2000000009f4 = 0);
    NONFAILING(*(uint32_t*)0x2000000009f8 = 0);
    NONFAILING(*(uint32_t*)0x2000000009fc = 0);
    NONFAILING(*(uint64_t*)0x200000000a00 = 0);
    NONFAILING(*(uint32_t*)0x200000000a08 = 0);
    NONFAILING(*(uint32_t*)0x200000000a0c = 0);
    res = syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x2000000009c0ul,
                  /*size=*/0x50ul);
    if (res != -1)
      r[3] = res;
    break;
  case 6:
    //  bpf$MAP_UPDATE_ELEM_TAIL_CALL arguments: [
    //    cmd: const = 0x2 (8 bytes)
    //    arg: ptr[inout, bpf_map_update_tail_call_arg] {
    //      bpf_map_update_tail_call_arg {
    //        map: tail_call_map_update {
    //          in: tail_call_map_fd (resource)
    //          out: tail_call_map (resource)
    //        }
    //        pad = 0x0 (4 bytes)
    //        key: ptr[in, const[0, const]] {
    //          const = 0x0 (4 bytes)
    //        }
    //        val: ptr[in, fd_bpf_prog] {
    //          fd_bpf_prog (resource)
    //        }
    //        flags: const = 0x0 (8 bytes)
    //      }
    //    }
    //    size: len = 0x20 (8 bytes)
    //  ]
    NONFAILING(*(uint32_t*)0x200000000040 = r[3]);
    NONFAILING(*(uint64_t*)0x200000000048 = 0x200000000280);
    NONFAILING(*(uint32_t*)0x200000000280 = 0);
    NONFAILING(*(uint64_t*)0x200000000050 = 0x200000000240);
    NONFAILING(*(uint32_t*)0x200000000240 = r[1]);
    NONFAILING(*(uint64_t*)0x200000000058 = 0);
    syscall(__NR_bpf, /*cmd=*/2ul, /*arg=*/0x200000000040ul, /*size=*/0x20ul);
    break;
  case 7:
    //  bpf$PROG_LOAD arguments: [
    //    cmd: const = 0x5 (8 bytes)
    //    arg: ptr[in, bpf_prog_t[flags[bpf_prog_type, int32],
    //    bpf_prog_attach_types, bpf_btf_id[opt], fd_bpf_prog[opt]]] {
    //      bpf_prog_t[flags[bpf_prog_type, int32], bpf_prog_attach_types,
    //      bpf_btf_id[opt], fd_bpf_prog[opt]] {
    //        type: bpf_prog_type = 0x1 (4 bytes)
    //        ninsn: bytesize8 = 0x10 (4 bytes)
    //        insns: ptr[inout, array[ANYUNION]] {
    //          array[ANYUNION] {
    //            union ANYUNION {
    //              ANYBLOB: buffer: {18 08 00 00 00 00 00 00 00 00 00 00 00 00
    //              00 00 18 12 00 00} (length 0x14)
    //            }
    //            union ANYUNION {
    //              ANYRES32: ANYRES32 (resource)
    //            }
    //            union ANYUNION {
    //              ANYBLOB: buffer: {00 00 00 00 00 00 00 00 b7 03 00 00 00 00
    //              00 00 85 00 00 00 0c 00 00 00 b7 00 00 00 00 00 00 00 18 01
    //              00 00 00 08 2c 25 00 00 00 00 00 21 20 20 7b 1a f8 ff 00 00
    //              00 00 bf a1 00 00 00 00 00 00 07 01 00 00 f8 ff ff ff b7 02
    //              00 00 08 00 00 00 b7 03 00 00 00 00 00 00 85 00 00 00 07 00
    //              00 00 95} (length 0x61)
    //            }
    //          }
    //        }
    //        license: ptr[in, buffer] {
    //          buffer: {47 50 4c 00} (length 0x4)
    //        }
    //        loglev: int32 = 0x0 (4 bytes)
    //        logsize: len = 0x0 (4 bytes)
    //        log: nil
    //        kern_version: bpf_kern_version = 0x0 (4 bytes)
    //        flags: bpf_prog_load_flags = 0x2 (4 bytes)
    //        prog_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    //        00} (length 0x10) prog_ifindex: ifindex (resource)
    //        expected_attach_type: union bpf_prog_attach_types {
    //          fallback: bpf_attach_types = 0x2 (4 bytes)
    //        }
    //        btf_fd: fd_btf (resource)
    //        func_info_rec_size: const = 0x0 (4 bytes)
    //        func_info: nil
    //        func_info_cnt: len = 0x0 (4 bytes)
    //        line_info_rec_size: const = 0x0 (4 bytes)
    //        line_info: nil
    //        line_info_cnt: len = 0x0 (4 bytes)
    //        attach_btf_id: bpf_btf_id (resource)
    //        attach_prog_fd: fd_bpf_prog (resource)
    //        core_relo_cnt: len = 0x0 (4 bytes)
    //        fd_array: nil
    //        core_relos: nil
    //        core_relo_rec_size: const = 0x0 (4 bytes)
    //        log_true_size: int32 = 0x0 (4 bytes)
    //        prog_token_fd: union _bpf_prog_t[flags[bpf_prog_type, int32],
    //        bpf_prog_attach_types, bpf_btf_id[opt],
    //        fd_bpf_prog[opt]]_prog_token_fd_wrapper {
    //          void: buffer: {} (length 0x0)
    //        }
    //        pad: union _bpf_prog_t[flags[bpf_prog_type, int32],
    //        bpf_prog_attach_types, bpf_btf_id[opt],
    //        fd_bpf_prog[opt]]_pad_wrapper {
    //          value: const = 0x0 (4 bytes)
    //        }
    //      }
    //    }
    //    size: len = 0x94 (8 bytes)
    //  ]
    //  returns fd_bpf_prog
    NONFAILING(*(uint32_t*)0x200000000880 = 1);
    NONFAILING(*(uint32_t*)0x200000000884 = 0x10);
    NONFAILING(*(uint64_t*)0x200000000888 = 0x200000000bc0);
    NONFAILING(memcpy((void*)0x200000000bc0,
                      "\x18\x08\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                      "\x00\x00\x18\x12\x00\x00",
                      20));
    NONFAILING(*(uint32_t*)0x200000000bd4 = r[3]);
    NONFAILING(memcpy(
        (void*)0x200000000bd8,
        "\x00\x00\x00\x00\x00\x00\x00\x00\xb7\x03\x00\x00\x00\x00\x00\x00\x85"
        "\x00\x00\x00\x0c\x00\x00\x00\xb7\x00\x00\x00\x00\x00\x00\x00\x18\x01"
        "\x00\x00\x00\x08\x2c\x25\x00\x00\x00\x00\x00\x21\x20\x20\x7b\x1a\xf8"
        "\xff\x00\x00\x00\x00\xbf\xa1\x00\x00\x00\x00\x00\x00\x07\x01\x00\x00"
        "\xf8\xff\xff\xff\xb7\x02\x00\x00\x08\x00\x00\x00\xb7\x03\x00\x00\x00"
        "\x00\x00\x00\x85\x00\x00\x00\x07\x00\x00\x00\x95",
        97));
    NONFAILING(*(uint64_t*)0x200000000890 = 0x200000000980);
    NONFAILING(memcpy((void*)0x200000000980, "GPL\000", 4));
    NONFAILING(*(uint32_t*)0x200000000898 = 0);
    NONFAILING(*(uint32_t*)0x20000000089c = 0);
    NONFAILING(*(uint64_t*)0x2000000008a0 = 0);
    NONFAILING(*(uint32_t*)0x2000000008a8 = 0);
    NONFAILING(*(uint32_t*)0x2000000008ac = 2);
    NONFAILING(memset((void*)0x2000000008b0, 0, 16));
    NONFAILING(*(uint32_t*)0x2000000008c0 = 0);
    NONFAILING(*(uint32_t*)0x2000000008c4 = 2);
    NONFAILING(*(uint32_t*)0x2000000008c8 = -1);
    NONFAILING(*(uint32_t*)0x2000000008cc = 0);
    NONFAILING(*(uint64_t*)0x2000000008d0 = 0);
    NONFAILING(*(uint32_t*)0x2000000008d8 = 0);
    NONFAILING(*(uint32_t*)0x2000000008dc = 0);
    NONFAILING(*(uint64_t*)0x2000000008e0 = 0);
    NONFAILING(*(uint32_t*)0x2000000008e8 = 0);
    NONFAILING(*(uint32_t*)0x2000000008ec = 0);
    NONFAILING(*(uint32_t*)0x2000000008f0 = 0);
    NONFAILING(*(uint32_t*)0x2000000008f4 = 0);
    NONFAILING(*(uint64_t*)0x2000000008f8 = 0);
    NONFAILING(*(uint64_t*)0x200000000900 = 0);
    NONFAILING(*(uint32_t*)0x200000000908 = 0);
    NONFAILING(*(uint32_t*)0x20000000090c = 0);
    NONFAILING(*(uint32_t*)0x200000000910 = 0);
    res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000000880ul,
                  /*size=*/0x94ul);
    if (res != -1)
      r[4] = res;
    break;
  case 8:
    //  setsockopt$sock_attach_bpf arguments: [
    //    fd: sock (resource)
    //    level: const = 0x1 (4 bytes)
    //    optname: const = 0x32 (4 bytes)
    //    optval: ptr[in, fd_bpf_prog] {
    //      fd_bpf_prog (resource)
    //    }
    //    optlen: len = 0x4 (8 bytes)
    //  ]
    NONFAILING(*(uint32_t*)0x2000000000c0 = r[4]);
    syscall(__NR_setsockopt, /*fd=*/r[2], /*level=*/1, /*optname=*/0x32,
            /*optval=*/0x2000000000c0ul, /*optlen=*/4ul);
    break;
  }
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul,
          /*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=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  setup_sysctl();
  const char* reason;
  (void)reason;
  if ((reason = setup_swap()))
    printf("the reproducer may not work as expected: swap setup failed: %s\n",
           reason);
  install_segv_handler();
  for (procid = 0; procid < 5; procid++) {
    if (fork() == 0) {
      do_sandbox_none();
    }
  }
  sleep(1000000);
  return 0;
}