// https://syzkaller.appspot.com/bug?id=3d8b8c465a1a3313b6dfede0b71eec4b75a26901
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

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

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

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

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

static void execute_one(void);

#define WAIT_FLAGS __WALL

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

uint64_t r[1] = {0xffffffffffffffff};

void execute_one(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 = 0x0 (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 = 0x2 (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 {
  //                  printk: bpf_insn_trace_printk {
  //                    insn1: union bpf_insn_mov_printk_str_hex[BPF_REG_1] {
  //                      ld: bpf_insn_mov_imm64[BPF_REG_1, 0x256c6420,
  //                      0x20202000] {
  //                        code: const = 0x18 (1 bytes)
  //                        dst: const = 0x1 (0 bytes)
  //                        src: const = 0x0 (1 bytes)
  //                        off: const = 0x0 (2 bytes)
  //                        imm: const = 0x256c6420 (4 bytes)
  //                        code2: const = 0x0 (1 bytes)
  //                        regs2: const = 0x0 (1 bytes)
  //                        off2: const = 0x0 (2 bytes)
  //                        imm2: const = 0x20202000 (4 bytes)
  //                      }
  //                    }
  //                    insn2: bpf_insn_ldst_t[BPF_STX, BPF_DW0, BPF_MEM0,
  //                    const[BPF_REG_10, int8:4], const[BPF_REG_1, 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 = 0x1 (1 bytes)
  //                      off: const = 0xfff8 (2 bytes)
  //                      imm: const = 0x0 (4 bytes)
  //                    }
  //                    insn3: bpf_insn_alu_t[BPF_ALU64, BPF_X0, BPF_MOV0,
  //                    const[BPF_REG_1, 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 = 0x1 (0 bytes)
  //                      src: const = 0xa (1 bytes)
  //                      off: const = 0x0 (2 bytes)
  //                      imm: const = 0x0 (4 bytes)
  //                    }
  //                    insn4: bpf_insn_alu_t[BPF_ALU64, BPF_K0, BPF_ADD0,
  //                    const[BPF_REG_1, 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 = 0x1 (0 bytes)
  //                      src: const = 0x0 (1 bytes)
  //                      off: const = 0x0 (2 bytes)
  //                      imm: const = 0xfffffff8 (4 bytes)
  //                    }
  //                    insn5: bpf_insn_alu_t[BPF_ALU64, BPF_K0, BPF_MOV0,
  //                    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 = 0xb (1 bytes)
  //                      dst: const = 0x2 (0 bytes)
  //                      src: const = 0x0 (1 bytes)
  //                      off: const = 0x0 (2 bytes)
  //                      imm: const = 0x8 (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], 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: int32 = 0x0 (4 bytes)
  //                    }
  //                    insn7:
  //                    bpf_insn_call_helper_t[const[BPF_FUNC_trace_printk,
  //                    int32]] {
  //                      code: const = 0x85 (1 bytes)
  //                      regs: const = 0x0 (1 bytes)
  //                      off: const = 0x0 (2 bytes)
  //                      func: const = 0x6 (4 bytes)
  //                    }
  //                  }
  //                }
  //                union bpf_insn {
  //                  call: bpf_insn_call_helper_t[int32[0:__BPF_FUNC_MAX_ID]] {
  //                    code: const = 0x85 (1 bytes)
  //                    regs: const = 0x0 (1 bytes)
  //                    off: const = 0x0 (2 bytes)
  //                    func: int32 = 0x8 (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 = 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 = 0x10 (4 bytes)
  //        log_true_size: int32 = 0x1 (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*)0x200000000040 = 0);
  NONFAILING(*(uint32_t*)0x200000000044 = 0xc);
  NONFAILING(*(uint64_t*)0x200000000048 = 0x200000000440);
  NONFAILING(*(uint8_t*)0x200000000440 = 0x18);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000441, 2, 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, 0, 4, 4));
  NONFAILING(*(uint16_t*)0x200000000452 = 0);
  NONFAILING(*(uint32_t*)0x200000000454 = 0x256c6420);
  NONFAILING(*(uint8_t*)0x200000000458 = 0);
  NONFAILING(*(uint8_t*)0x200000000459 = 0);
  NONFAILING(*(uint16_t*)0x20000000045a = 0);
  NONFAILING(*(uint32_t*)0x20000000045c = 0x20202000);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000460, 3, 0, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000460, 3, 3, 2));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000460, 3, 5, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000461, 0xa, 0, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000461, 1, 4, 4));
  NONFAILING(*(uint16_t*)0x200000000462 = 0xfff8);
  NONFAILING(*(uint32_t*)0x200000000464 = 0);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000468, 7, 0, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000468, 1, 3, 1));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000468, 0xb, 4, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000469, 1, 0, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000469, 0xa, 4, 4));
  NONFAILING(*(uint16_t*)0x20000000046a = 0);
  NONFAILING(*(uint32_t*)0x20000000046c = 0);
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000470, 7, 0, 3));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000470, 0, 3, 1));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000470, 0, 4, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000471, 1, 0, 4));
  NONFAILING(STORE_BY_BITMASK(uint8_t, , 0x200000000471, 0, 4, 4));
  NONFAILING(*(uint16_t*)0x200000000472 = 0);
  NONFAILING(*(uint32_t*)0x200000000474 = 0xfffffff8);
  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, 0xb, 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 = 8);
  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 = 0);
  NONFAILING(*(uint8_t*)0x200000000488 = 0x85);
  NONFAILING(*(uint8_t*)0x200000000489 = 0);
  NONFAILING(*(uint16_t*)0x20000000048a = 0);
  NONFAILING(*(uint32_t*)0x20000000048c = 6);
  NONFAILING(*(uint8_t*)0x200000000490 = 0x85);
  NONFAILING(*(uint8_t*)0x200000000491 = 0);
  NONFAILING(*(uint16_t*)0x200000000492 = 0);
  NONFAILING(*(uint32_t*)0x200000000494 = 8);
  NONFAILING(*(uint8_t*)0x200000000498 = 0x95);
  NONFAILING(*(uint8_t*)0x200000000499 = 0);
  NONFAILING(*(uint16_t*)0x20000000049a = 0);
  NONFAILING(*(uint32_t*)0x20000000049c = 0);
  NONFAILING(*(uint64_t*)0x200000000050 = 0);
  NONFAILING(*(uint32_t*)0x200000000058 = 0);
  NONFAILING(*(uint32_t*)0x20000000005c = 0);
  NONFAILING(*(uint64_t*)0x200000000060 = 0);
  NONFAILING(*(uint32_t*)0x200000000068 = 0);
  NONFAILING(*(uint32_t*)0x20000000006c = 0);
  NONFAILING(memset((void*)0x200000000070, 0, 16));
  NONFAILING(*(uint32_t*)0x200000000080 = 0);
  NONFAILING(*(uint32_t*)0x200000000084 = 0);
  NONFAILING(*(uint32_t*)0x200000000088 = -1);
  NONFAILING(*(uint32_t*)0x20000000008c = 0);
  NONFAILING(*(uint64_t*)0x200000000090 = 0);
  NONFAILING(*(uint32_t*)0x200000000098 = 0);
  NONFAILING(*(uint32_t*)0x20000000009c = 0);
  NONFAILING(*(uint64_t*)0x2000000000a0 = 0);
  NONFAILING(*(uint32_t*)0x2000000000a8 = 0);
  NONFAILING(*(uint32_t*)0x2000000000ac = 0);
  NONFAILING(*(uint32_t*)0x2000000000b0 = 0);
  NONFAILING(*(uint32_t*)0x2000000000b4 = 0);
  NONFAILING(*(uint64_t*)0x2000000000b8 = 0);
  NONFAILING(*(uint64_t*)0x2000000000c0 = 0);
  NONFAILING(*(uint32_t*)0x2000000000c8 = 0x10);
  NONFAILING(*(uint32_t*)0x2000000000cc = 1);
  NONFAILING(*(uint32_t*)0x2000000000d0 = 0);
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000000040ul, /*size=*/0x94ul);
  //  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 00 00 00 00 00 00 00 00 00 00 00
  //              00 85 00 00 00 22 00 00 00 18 01 00 00 20 20 70 25 00 00 00 00
  //              00 20 20 20 7b 0a 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} (length 0x45)
  //            }
  //          }
  //        }
  //        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 = 0x80 (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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x85\x00"
      "\x00\x00\x22\x00\x00\x00\x18\x01\x00\x00\x20\x20\x70\x25\x00\x00\x00\x00"
      "\x00\x20\x20\x20\x7b\x0a\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",
      69));
  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 = 0);
  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 = -1);
  NONFAILING(*(uint32_t*)0x200000000134 = 0);
  NONFAILING(*(uint64_t*)0x200000000138 = 0);
  NONFAILING(*(uint64_t*)0x200000000140 = 0);
  NONFAILING(*(uint32_t*)0x200000000148 = 0);
  NONFAILING(*(uint32_t*)0x20000000014c = 0x80);
  NONFAILING(*(uint32_t*)0x200000000150 = 0);
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x2000000000c0ul, /*size=*/0x94ul);
  //  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 00 00 00 00 00 00 00 00 00 00 00
  //              00 85 00 00 00 07} (length 0x15)
  //            }
  //          }
  //        }
  //        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 = 0x1c (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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                    "\x00\x00\x85\x00\x00\x00\x07",
                    21));
  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 = 0x1c);
  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);
  //  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 = 0x16 (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 {
  //          flow_dissector: flow_dissector_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 = 0x90 (8 bytes)
  //  ]
  //  returns fd_bpf_prog
  NONFAILING(*(uint32_t*)0x2000000000c0 = 0x16);
  NONFAILING(*(uint32_t*)0x2000000000c4 = 0xc);
  NONFAILING(*(uint64_t*)0x2000000000c8 = 0x200000000440);
  NONFAILING(*(uint64_t*)0x2000000000d0 = 0x200000000240);
  NONFAILING(memcpy((void*)0x200000000240, "GPL\000", 4));
  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);
  res =
      syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x2000000000c0ul, /*size=*/0x90ul);
  if (res != -1)
    r[0] = res;
  //  bpf$BPF_PROG_TEST_RUN arguments: [
  //    cmd: const = 0xa (8 bytes)
  //    arg: ptr[in, bpf_test_prog_arg] {
  //      bpf_test_prog_arg {
  //        prog: fd_bpf_prog (resource)
  //        retval: const = 0x2000000 (4 bytes)
  //        insizedata: len = 0xe (4 bytes)
  //        outsizedata: len = 0x0 (4 bytes)
  //        indata: ptr[in, buffer] {
  //          buffer: {63 ec ed 8e 46 dc 3f 0a df 33 c9 f7 b9 86} (length 0xe)
  //        }
  //        outdata: nil
  //        repeat: int32 = 0x3800 (4 bytes)
  //        dur: const = 0x0 (4 bytes)
  //        insizectx: len = 0x0 (4 bytes)
  //        outsizectx: len = 0x0 (4 bytes)
  //        inctx: nil
  //        outctx: nil
  //        flags: bpf_prog_test_run_flags = 0x0 (4 bytes)
  //        cpu: const = 0x0 (4 bytes)
  //        batch_size: int32 = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    size: len = 0x50 (8 bytes)
  //  ]
  NONFAILING(*(uint32_t*)0x200000000180 = r[0]);
  NONFAILING(*(uint32_t*)0x200000000184 = 0x2000000);
  NONFAILING(*(uint32_t*)0x200000000188 = 0xe);
  NONFAILING(*(uint32_t*)0x20000000018c = 0);
  NONFAILING(*(uint64_t*)0x200000000190 = 0x200000000200);
  NONFAILING(memcpy((void*)0x200000000200,
                    "\x63\xec\xed\x8e\x46\xdc\x3f\x0a\xdf\x33\xc9\xf7\xb9\x86",
                    14));
  NONFAILING(*(uint64_t*)0x200000000198 = 0);
  NONFAILING(*(uint32_t*)0x2000000001a0 = 0x3800);
  NONFAILING(*(uint32_t*)0x2000000001a4 = 0);
  NONFAILING(*(uint32_t*)0x2000000001a8 = 0);
  NONFAILING(*(uint32_t*)0x2000000001ac = 0);
  NONFAILING(*(uint64_t*)0x2000000001b0 = 0);
  NONFAILING(*(uint64_t*)0x2000000001b8 = 0);
  NONFAILING(*(uint32_t*)0x2000000001c0 = 0);
  NONFAILING(*(uint32_t*)0x2000000001c4 = 0);
  NONFAILING(*(uint32_t*)0x2000000001c8 = 0);
  syscall(__NR_bpf, /*cmd=*/0xaul, /*arg=*/0x200000000180ul, /*size=*/0x50ul);
}
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;
  install_segv_handler();
  for (procid = 0; procid < 5; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}