// https://syzkaller.appspot.com/bug?id=999c5ac4a2d7feccb9cf75245fa6e33c3a0f9bfb
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <errno.h>
#include <fcntl.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 <unistd.h>

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

#ifndef __NR_bpf
#define __NR_bpf 321
#endif

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 use_temporary_dir(void)
{
  char tmpdir_template[] = "./syzkaller.XXXXXX";
  char* tmpdir = mkdtemp(tmpdir_template);
  if (!tmpdir)
    exit(1);
  if (chmod(tmpdir, 0777))
    exit(1);
  if (chdir(tmpdir))
    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))))

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)) {
  }
}

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 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"},
      {"/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)
    ;
}

#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;
}

uint64_t r[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff};

void loop(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  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 = 0x7 (4 bytes)
  //        ninsn: bytesize8 = 0x8 (4 bytes)
  //        insns: ptr[inout, array[ANYUNION]] {
  //          array[ANYUNION] {
  //            union ANYUNION {
  //              ANYBLOB: buffer: {18 00 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 02 00 00
  //              00 85 00 00 00 1b 00 00 00 b7 00 00 00 00 00 00 00 95} (length
  //              0x21)
  //            }
  //          }
  //        }
  //        license: nil
  //        loglev: int32 = 0x0 (4 bytes)
  //        logsize: len = 0x0 (4 bytes)
  //        log: nil
  //        kern_version: bpf_kern_version = 0x41000 (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 = 0x20 (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*)0x200000000680 = 7);
  NONFAILING(*(uint32_t*)0x200000000684 = 8);
  NONFAILING(*(uint64_t*)0x200000000688 = 0x200000000080);
  NONFAILING(memcpy((void*)0x200000000080,
                    "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                    "\x00\x00\x18\x12\x00\x00",
                    20));
  NONFAILING(*(uint32_t*)0x200000000094 = -1);
  NONFAILING(memcpy(
      (void*)0x200000000098,
      "\x00\x00\x00\x00\x00\x00\x00\x00\xb7\x03\x00\x00\x02\x00\x00\x00\x85\x00"
      "\x00\x00\x1b\x00\x00\x00\xb7\x00\x00\x00\x00\x00\x00\x00\x95",
      33));
  NONFAILING(*(uint64_t*)0x200000000690 = 0);
  NONFAILING(*(uint32_t*)0x200000000698 = 0);
  NONFAILING(*(uint32_t*)0x20000000069c = 0);
  NONFAILING(*(uint64_t*)0x2000000006a0 = 0);
  NONFAILING(*(uint32_t*)0x2000000006a8 = 0x41000);
  NONFAILING(*(uint32_t*)0x2000000006ac = 0);
  NONFAILING(memset((void*)0x2000000006b0, 0, 16));
  NONFAILING(*(uint32_t*)0x2000000006c0 = 0);
  NONFAILING(*(uint32_t*)0x2000000006c4 = 0x20);
  NONFAILING(*(uint32_t*)0x2000000006c8 = 0);
  NONFAILING(*(uint32_t*)0x2000000006cc = 0);
  NONFAILING(*(uint64_t*)0x2000000006d0 = 0);
  NONFAILING(*(uint32_t*)0x2000000006d8 = 0);
  NONFAILING(*(uint32_t*)0x2000000006dc = 0);
  NONFAILING(*(uint64_t*)0x2000000006e0 = 0);
  NONFAILING(*(uint32_t*)0x2000000006e8 = 0);
  NONFAILING(*(uint32_t*)0x2000000006ec = 0);
  NONFAILING(*(uint32_t*)0x2000000006f0 = 0);
  NONFAILING(*(uint32_t*)0x2000000006f4 = 0);
  NONFAILING(*(uint64_t*)0x2000000006f8 = 0);
  NONFAILING(*(uint64_t*)0x200000000700 = 0);
  NONFAILING(*(uint32_t*)0x200000000708 = 0);
  NONFAILING(*(uint32_t*)0x20000000070c = 0);
  NONFAILING(*(uint32_t*)0x200000000710 = 0);
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000000680ul, /*size=*/0x94ul);
  //  bpf$MAP_CREATE arguments: [
  //    cmd: const = 0x0 (8 bytes)
  //    arg: ptr[in, bpf_map_create_arg] {
  //      union bpf_map_create_arg {
  //        base: bpf_map_create_arg_t[flags[bpf_map_type, int32], int32, int32,
  //        int32, flags[map_flags, int32], const[0, int64]] {
  //          type: bpf_map_type = 0x7 (4 bytes)
  //          ksize: int32 = 0x4 (4 bytes)
  //          vsize: int32 = 0x100 (4 bytes)
  //          max: int32 = 0x3 (4 bytes)
  //          flags: map_flags = 0x28 (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[flags[bpf_map_type, int32], int32, int32,
  //          int32, flags[map_flags, int32], const[0,
  //          int64]]_value_type_btf_obj_fd_wrapper {
  //            void: buffer: {} (length 0x0)
  //          }
  //          pad1: union _bpf_map_create_arg_t[flags[bpf_map_type, int32],
  //          int32, int32, int32, flags[map_flags, int32], const[0,
  //          int64]]_pad1_wrapper {
  //            value: const = 0x0 (4 bytes)
  //          }
  //          map_token_fd: union _bpf_map_create_arg_t[flags[bpf_map_type,
  //          int32], int32, int32, int32, flags[map_flags, int32], const[0,
  //          int64]]_map_token_fd_wrapper {
  //            void: buffer: {} (length 0x0)
  //          }
  //          pad2: union _bpf_map_create_arg_t[flags[bpf_map_type, int32],
  //          int32, int32, int32, flags[map_flags, int32], const[0,
  //          int64]]_pad2_wrapper {
  //            value: const = 0x0 (4 bytes)
  //          }
  //        }
  //      }
  //    }
  //    size: len = 0x50 (8 bytes)
  //  ]
  //  returns fd_bpf_map
  NONFAILING(*(uint32_t*)0x200000000280 = 7);
  NONFAILING(*(uint32_t*)0x200000000284 = 4);
  NONFAILING(*(uint32_t*)0x200000000288 = 0x100);
  NONFAILING(*(uint32_t*)0x20000000028c = 3);
  NONFAILING(*(uint32_t*)0x200000000290 = 0x28);
  NONFAILING(*(uint32_t*)0x200000000294 = -1);
  NONFAILING(*(uint32_t*)0x200000000298 = 0);
  NONFAILING(memset((void*)0x20000000029c, 0, 16));
  NONFAILING(*(uint32_t*)0x2000000002ac = 0);
  NONFAILING(*(uint32_t*)0x2000000002b0 = -1);
  NONFAILING(*(uint32_t*)0x2000000002b4 = 0);
  NONFAILING(*(uint32_t*)0x2000000002b8 = 0);
  NONFAILING(*(uint32_t*)0x2000000002bc = 0);
  NONFAILING(*(uint64_t*)0x2000000002c0 = 0);
  NONFAILING(*(uint32_t*)0x2000000002c8 = 0);
  NONFAILING(*(uint32_t*)0x2000000002cc = 0);
  res =
      syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x200000000280ul, /*size=*/0x50ul);
  if (res != -1)
    r[0] = res;
  //  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 = 0x7 (4 bytes)
  //        ninsn: bytesize8 = 0x8 (4 bytes)
  //        insns: ptr[inout, array[ANYUNION]] {
  //          array[ANYUNION] {
  //            union ANYUNION {
  //              ANYBLOB: buffer: {18 00 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)
  //            }
  //          }
  //        }
  //        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 = 0x41000 (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 = 0x20 (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*)0x200000000680 = 7);
  NONFAILING(*(uint32_t*)0x200000000684 = 8);
  NONFAILING(*(uint64_t*)0x200000000688 = 0x200000000080);
  NONFAILING(memcpy((void*)0x200000000080,
                    "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                    "\x00\x00\x18\x12\x00\x00",
                    20));
  NONFAILING(*(uint32_t*)0x200000000094 = r[0]);
  NONFAILING(*(uint64_t*)0x200000000690 = 0x200000000780);
  NONFAILING(memcpy((void*)0x200000000780, "GPL\000", 4));
  NONFAILING(*(uint32_t*)0x200000000698 = 0);
  NONFAILING(*(uint32_t*)0x20000000069c = 0);
  NONFAILING(*(uint64_t*)0x2000000006a0 = 0);
  NONFAILING(*(uint32_t*)0x2000000006a8 = 0x41000);
  NONFAILING(*(uint32_t*)0x2000000006ac = 0);
  NONFAILING(memset((void*)0x2000000006b0, 0, 16));
  NONFAILING(*(uint32_t*)0x2000000006c0 = 0);
  NONFAILING(*(uint32_t*)0x2000000006c4 = 0x20);
  NONFAILING(*(uint32_t*)0x2000000006c8 = 0);
  NONFAILING(*(uint32_t*)0x2000000006cc = 0);
  NONFAILING(*(uint64_t*)0x2000000006d0 = 0);
  NONFAILING(*(uint32_t*)0x2000000006d8 = 0);
  NONFAILING(*(uint32_t*)0x2000000006dc = 0);
  NONFAILING(*(uint64_t*)0x2000000006e0 = 0);
  NONFAILING(*(uint32_t*)0x2000000006e8 = 0);
  NONFAILING(*(uint32_t*)0x2000000006ec = 0);
  NONFAILING(*(uint32_t*)0x2000000006f0 = 0);
  NONFAILING(*(uint32_t*)0x2000000006f4 = 0);
  NONFAILING(*(uint64_t*)0x2000000006f8 = 0);
  NONFAILING(*(uint64_t*)0x200000000700 = 0);
  NONFAILING(*(uint32_t*)0x200000000708 = 0);
  NONFAILING(*(uint32_t*)0x20000000070c = 0);
  NONFAILING(*(uint32_t*)0x200000000710 = 0);
  res =
      syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000000680ul, /*size=*/0x94ul);
  if (res != -1)
    r[1] = res;
  //  perf_event_open arguments: [
  //    attr: ptr[in, perf_event_attr] {
  //      perf_event_attr {
  //        type: perf_event_type = 0x1 (4 bytes)
  //        size: len = 0x80 (4 bytes)
  //        config0: int8 = 0x2 (1 bytes)
  //        config1: int8 = 0x0 (1 bytes)
  //        config2: int8 = 0x0 (1 bytes)
  //        config3: int8 = 0x0 (1 bytes)
  //        config4: const = 0x0 (4 bytes)
  //        sample_freq: int64 = 0x400 (8 bytes)
  //        sample_type: perf_sample_type = 0x66137 (8 bytes)
  //        read_format: perf_read_format = 0x0 (8 bytes)
  //        disabled: int64 = 0x0 (0 bytes)
  //        inherit: int64 = 0x0 (0 bytes)
  //        pinned: int64 = 0x0 (0 bytes)
  //        exclusive: int64 = 0x0 (0 bytes)
  //        exclude_user: int64 = 0x0 (0 bytes)
  //        exclude_kernel: int64 = 0x0 (0 bytes)
  //        exclude_hv: int64 = 0x0 (0 bytes)
  //        exclude_idle: int64 = 0x0 (0 bytes)
  //        mmap: int64 = 0x0 (0 bytes)
  //        comm: int64 = 0x0 (0 bytes)
  //        freq: int64 = 0x0 (0 bytes)
  //        inherit_stat: int64 = 0x0 (0 bytes)
  //        enable_on_exec: int64 = 0x0 (0 bytes)
  //        task: int64 = 0x0 (0 bytes)
  //        watermark: int64 = 0x0 (0 bytes)
  //        precise_ip: int64 = 0x0 (0 bytes)
  //        mmap_data: int64 = 0x0 (0 bytes)
  //        sample_id_all: int64 = 0x0 (0 bytes)
  //        exclude_host: int64 = 0x0 (0 bytes)
  //        exclude_guest: int64 = 0x0 (0 bytes)
  //        exclude_callchain_kernel: int64 = 0x0 (0 bytes)
  //        exclude_callchain_user: int64 = 0x0 (0 bytes)
  //        mmap2: int64 = 0x0 (0 bytes)
  //        comm_exec: int64 = 0x0 (0 bytes)
  //        use_clockid: int64 = 0x0 (0 bytes)
  //        context_switch: int64 = 0x0 (0 bytes)
  //        write_backward: int64 = 0x0 (0 bytes)
  //        namespaces: int64 = 0x0 (0 bytes)
  //        ksymbol: int64 = 0x0 (0 bytes)
  //        bpf_event: int64 = 0x0 (0 bytes)
  //        aux_output: int64 = 0x0 (0 bytes)
  //        cgroup: int64 = 0x0 (0 bytes)
  //        text_poke: int64 = 0x0 (0 bytes)
  //        build_id: int64 = 0x0 (0 bytes)
  //        inherit_thread: int64 = 0x0 (0 bytes)
  //        remove_on_exec: int64 = 0x0 (0 bytes)
  //        sigtrap: int64 = 0x0 (0 bytes)
  //        __reserved_1: const = 0x0 (8 bytes)
  //        wakeup_events: int32 = 0x24000000 (4 bytes)
  //        bp_type: perf_bp_type = 0x0 (4 bytes)
  //        bp_config: union perf_bp_config {
  //          perf_bp: perf_bp {
  //            bp_addr: nil
  //            bp_len: perf_bp_lens = 0x8 (8 bytes)
  //          }
  //        }
  //        branch_sample_type: perf_branch_sample_type = 0x0 (8 bytes)
  //        sample_regs_user: int64 = 0x0 (8 bytes)
  //        sample_stack_user: int32 = 0x0 (4 bytes)
  //        clockid: clock_type = 0x0 (4 bytes)
  //        sample_regs_intr: int64 = 0x7 (8 bytes)
  //        aux_watermark: int32 = 0x0 (4 bytes)
  //        sample_max_stack: int16 = 0x0 (2 bytes)
  //        __reserved_2: const = 0x0 (2 bytes)
  //        aux_sample_size: int32 = 0x0 (4 bytes)
  //        __reserved_3: const = 0x0 (4 bytes)
  //        sig_data: int64 = 0x0 (8 bytes)
  //      }
  //    }
  //    pid: pid (resource)
  //    cpu: intptr = 0xffefffffffffffff (8 bytes)
  //    group: fd_perf (resource)
  //    flags: perf_flags = 0x0 (8 bytes)
  //  ]
  //  returns fd_perf
  NONFAILING(*(uint32_t*)0x200000000fc0 = 1);
  NONFAILING(*(uint32_t*)0x200000000fc4 = 0x80);
  NONFAILING(*(uint8_t*)0x200000000fc8 = 2);
  NONFAILING(*(uint8_t*)0x200000000fc9 = 0);
  NONFAILING(*(uint8_t*)0x200000000fca = 0);
  NONFAILING(*(uint8_t*)0x200000000fcb = 0);
  NONFAILING(*(uint32_t*)0x200000000fcc = 0);
  NONFAILING(*(uint64_t*)0x200000000fd0 = 0x400);
  NONFAILING(*(uint64_t*)0x200000000fd8 = 0x66137);
  NONFAILING(*(uint64_t*)0x200000000fe0 = 0);
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 0, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 1, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 2, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 3, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 4, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 5, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 6, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 7, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 8, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 9, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 10, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 11, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 12, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 13, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 14, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 15, 2));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 17, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 18, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 19, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 20, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 21, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 22, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 23, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 24, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 25, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 26, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 27, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 28, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 29, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 30, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 31, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 32, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 33, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 34, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 35, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 36, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 37, 1));
  NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000fe8, 0, 38, 26));
  NONFAILING(*(uint32_t*)0x200000000ff0 = 0x24000000);
  NONFAILING(*(uint32_t*)0x200000000ff4 = 0);
  NONFAILING(*(uint64_t*)0x200000000ff8 = 0);
  NONFAILING(*(uint64_t*)0x200000001000 = 8);
  NONFAILING(*(uint64_t*)0x200000001008 = 0);
  NONFAILING(*(uint64_t*)0x200000001010 = 0);
  NONFAILING(*(uint32_t*)0x200000001018 = 0);
  NONFAILING(*(uint32_t*)0x20000000101c = 0);
  NONFAILING(*(uint64_t*)0x200000001020 = 7);
  NONFAILING(*(uint32_t*)0x200000001028 = 0);
  NONFAILING(*(uint16_t*)0x20000000102c = 0);
  NONFAILING(*(uint16_t*)0x20000000102e = 0);
  NONFAILING(*(uint32_t*)0x200000001030 = 0);
  NONFAILING(*(uint32_t*)0x200000001034 = 0);
  NONFAILING(*(uint64_t*)0x200000001038 = 0);
  res = syscall(__NR_perf_event_open, /*attr=*/0x200000000fc0ul, /*pid=*/0,
                /*cpu=*/0xffeffffffffffffful, /*group=*/(intptr_t)-1,
                /*flags=*/0ul);
  if (res != -1)
    r[2] = res;
  //  ioctl$PERF_EVENT_IOC_SET_BPF arguments: [
  //    fd: fd_perf (resource)
  //    cmd: const = 0x40042408 (4 bytes)
  //    prog: fd_bpf_prog (resource)
  //  ]
  syscall(__NR_ioctl, /*fd=*/r[2], /*cmd=*/0x40042408, /*prog=*/r[1]);
  //  socketpair$unix arguments: [
  //    domain: const = 0x1 (8 bytes)
  //    type: unix_socket_type = 0x2 (8 bytes)
  //    proto: const = 0x0 (4 bytes)
  //    fds: ptr[out, unix_pair] {
  //      unix_pair {
  //        fd0: sock_unix (resource)
  //        fd1: sock_unix (resource)
  //      }
  //    }
  //  ]
  res = syscall(__NR_socketpair, /*domain=*/1ul, /*type=SOCK_DGRAM*/ 2ul,
                /*proto=*/0, /*fds=*/0x2000000001c0ul);
  if (res != -1)
    NONFAILING(r[3] = *(uint32_t*)0x2000000001c4);
  //  sendmsg$inet arguments: [
  //    fd: sock (resource)
  //    msg: ptr[in, msghdr_inet] {
  //      msghdr_inet {
  //        msg_name: nil
  //        msg_namelen: len = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        msg_iov: ptr[in, array[iovec[in, array[int8]]]] {
  //          array[iovec[in, array[int8]]] {
  //            iovec[in, array[int8]] {
  //              addr: ptr[in, buffer] {
  //                buffer: {fa 82} (length 0x2)
  //              }
  //              len: len = 0x3e80 (8 bytes)
  //            }
  //          }
  //        }
  //        msg_iovlen: len = 0x53 (8 bytes)
  //        msg_control: nil
  //        msg_controllen: bytesize = 0x0 (8 bytes)
  //        msg_flags: const = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    f: send_flags = 0x0 (8 bytes)
  //  ]
  NONFAILING(*(uint64_t*)0x200000000100 = 0);
  NONFAILING(*(uint32_t*)0x200000000108 = 0);
  NONFAILING(*(uint64_t*)0x200000000110 = 0x2000000006c0);
  NONFAILING(*(uint64_t*)0x2000000006c0 = 0x200000000200);
  NONFAILING(memcpy((void*)0x200000000200, "\xfa\x82", 2));
  NONFAILING(*(uint64_t*)0x2000000006c8 = 0x3e80);
  NONFAILING(*(uint64_t*)0x200000000118 = 0x53);
  NONFAILING(*(uint64_t*)0x200000000120 = 0);
  NONFAILING(*(uint64_t*)0x200000000128 = 0);
  NONFAILING(*(uint32_t*)0x200000000130 = 0);
  syscall(__NR_sendmsg, /*fd=*/r[3], /*msg=*/0x200000000100ul, /*f=*/0ul);
  close_fds();
}
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;
  if ((reason = setup_swap()))
    printf("the reproducer may not work as expected: swap setup failed: %s\n",
           reason);
  install_segv_handler();
  use_temporary_dir();
  do_sandbox_none();
  return 0;
}