// https://syzkaller.appspot.com/bug?id=b77ab6a67040847bb383a688a9a0ec687daf3a6d
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.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 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 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[2] = {0xffffffffffffffff, 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  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 = 0x0 (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 = 0x5d31 (8 bytes)
  //        sample_type: perf_sample_type = 0xc220 (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 = 0x0 (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 = 0x0 (8 bytes)
  //          }
  //        }
  //        branch_sample_type: perf_branch_sample_type = 0x41 (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 = 0x0 (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 = 0x3 (8 bytes)
  //      }
  //    }
  //    pid: pid (resource)
  //    cpu: intptr = 0xffffffffffffffff (8 bytes)
  //    group: fd_perf (resource)
  //    flags: perf_flags = 0x0 (8 bytes)
  //  ]
  //  returns fd_perf
  *(uint32_t*)0x200000000480 = 1;
  *(uint32_t*)0x200000000484 = 0x80;
  *(uint8_t*)0x200000000488 = 0;
  *(uint8_t*)0x200000000489 = 0;
  *(uint8_t*)0x20000000048a = 0;
  *(uint8_t*)0x20000000048b = 0;
  *(uint32_t*)0x20000000048c = 0;
  *(uint64_t*)0x200000000490 = 0x5d31;
  *(uint64_t*)0x200000000498 = 0xc220;
  *(uint64_t*)0x2000000004a0 = 0;
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 0, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 1, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 2, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 3, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 4, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 5, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 6, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 7, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 8, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 9, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 10, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 11, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 12, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 13, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 14, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 15, 2);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 17, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 18, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 19, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 20, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 21, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 22, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 23, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 24, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 25, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 26, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 27, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 28, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 29, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 30, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 31, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 32, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 33, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 34, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 35, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 36, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 37, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 38, 26);
  *(uint32_t*)0x2000000004b0 = 0;
  *(uint32_t*)0x2000000004b4 = 0;
  *(uint64_t*)0x2000000004b8 = 0;
  *(uint64_t*)0x2000000004c0 = 0;
  *(uint64_t*)0x2000000004c8 = 0x41;
  *(uint64_t*)0x2000000004d0 = 0;
  *(uint32_t*)0x2000000004d8 = 0;
  *(uint32_t*)0x2000000004dc = 0;
  *(uint64_t*)0x2000000004e0 = 0;
  *(uint32_t*)0x2000000004e8 = 0;
  *(uint16_t*)0x2000000004ec = 0;
  *(uint16_t*)0x2000000004ee = 0;
  *(uint32_t*)0x2000000004f0 = 0;
  *(uint32_t*)0x2000000004f4 = 0;
  *(uint64_t*)0x2000000004f8 = 3;
  syscall(__NR_perf_event_open, /*attr=*/0x200000000480ul, /*pid=*/0,
          /*cpu=*/(intptr_t)-1, /*group=*/(intptr_t)-1, /*flags=*/0ul);
  //  setsockopt$sock_attach_bpf arguments: [
  //    fd: sock (resource)
  //    level: const = 0x84 (4 bytes)
  //    optname: const = 0x85 (4 bytes)
  //    optval: nil
  //    optlen: len = 0x0 (8 bytes)
  //  ]
  syscall(__NR_setsockopt, /*fd=*/(intptr_t)-1, /*level=*/0x84,
          /*optname=*/0x85, /*optval=*/0ul, /*optlen=*/0ul);
  //  socket$nl_route arguments: [
  //    domain: const = 0x10 (8 bytes)
  //    type: const = 0x3 (8 bytes)
  //    proto: const = 0x0 (4 bytes)
  //  ]
  //  returns sock_nl_route
  syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0);
  //  sendmsg$inet arguments: [
  //    fd: sock (resource)
  //    msg: nil
  //    f: send_flags = 0xe0 (8 bytes)
  //  ]
  syscall(__NR_sendmsg, /*fd=*/(intptr_t)-1, /*msg=*/0ul,
          /*f=MSG_EOR|MSG_DONTWAIT|0x20*/ 0xe0ul);
  //  perf_event_open arguments: [
  //    attr: ptr[in, perf_event_attr] {
  //      perf_event_attr {
  //        type: perf_event_type = 0x2 (4 bytes)
  //        size: len = 0x80 (4 bytes)
  //        config0: int8 = 0x4a (1 bytes)
  //        config1: int8 = 0x1 (1 bytes)
  //        config2: int8 = 0x0 (1 bytes)
  //        config3: int8 = 0x0 (1 bytes)
  //        config4: const = 0x0 (4 bytes)
  //        sample_freq: int64 = 0x4 (8 bytes)
  //        sample_type: perf_sample_type = 0x224 (8 bytes)
  //        read_format: perf_read_format = 0xe (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 = 0x0 (4 bytes)
  //        bp_type: perf_bp_type = 0x0 (4 bytes)
  //        bp_config: union perf_bp_config {
  //          perf_config_ext: perf_config_ext {
  //            config1: int64 = 0x0 (8 bytes)
  //            config2: int64 = 0x8000001946 (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 = 0x8 (4 bytes)
  //        sample_regs_intr: int64 = 0x3fe (8 bytes)
  //        aux_watermark: int32 = 0x9 (4 bytes)
  //        sample_max_stack: int16 = 0xd (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 = 0xffffffffffffffff (8 bytes)
  //    group: fd_perf (resource)
  //    flags: perf_flags = 0xa (8 bytes)
  //  ]
  //  returns fd_perf
  *(uint32_t*)0x200000000180 = 2;
  *(uint32_t*)0x200000000184 = 0x80;
  *(uint8_t*)0x200000000188 = 0x4a;
  *(uint8_t*)0x200000000189 = 1;
  *(uint8_t*)0x20000000018a = 0;
  *(uint8_t*)0x20000000018b = 0;
  *(uint32_t*)0x20000000018c = 0;
  *(uint64_t*)0x200000000190 = 4;
  *(uint64_t*)0x200000000198 = 0x224;
  *(uint64_t*)0x2000000001a0 = 0xe;
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 0, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 1, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 2, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 3, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 4, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 5, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 6, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 7, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 8, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 9, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 10, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 11, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 12, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 13, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 14, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 15, 2);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 17, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 18, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 19, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 20, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 21, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 22, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 23, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 24, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 25, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 26, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 27, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 28, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 29, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 30, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 31, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 32, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 33, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 34, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 35, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 36, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 37, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2000000001a8, 0, 38, 26);
  *(uint32_t*)0x2000000001b0 = 0;
  *(uint32_t*)0x2000000001b4 = 0;
  *(uint64_t*)0x2000000001b8 = 0;
  *(uint64_t*)0x2000000001c0 = 0x8000001946;
  *(uint64_t*)0x2000000001c8 = 0;
  *(uint64_t*)0x2000000001d0 = 0;
  *(uint32_t*)0x2000000001d8 = 0;
  *(uint32_t*)0x2000000001dc = 8;
  *(uint64_t*)0x2000000001e0 = 0x3fe;
  *(uint32_t*)0x2000000001e8 = 9;
  *(uint16_t*)0x2000000001ec = 0xd;
  *(uint16_t*)0x2000000001ee = 0;
  *(uint32_t*)0x2000000001f0 = 0;
  *(uint32_t*)0x2000000001f4 = 0;
  *(uint64_t*)0x2000000001f8 = 0;
  syscall(__NR_perf_event_open, /*attr=*/0x200000000180ul, /*pid=*/0,
          /*cpu=*/(intptr_t)-1, /*group=*/(intptr_t)-1,
          /*flags=PERF_FLAG_FD_CLOEXEC|PERF_FLAG_FD_OUTPUT*/ 0xaul);
  //  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 = 0x80 (4 bytes)
  //          max: int32 = 0x4 (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
  *(uint32_t*)0x200000000280 = 7;
  *(uint32_t*)0x200000000284 = 4;
  *(uint32_t*)0x200000000288 = 0x80;
  *(uint32_t*)0x20000000028c = 4;
  *(uint32_t*)0x200000000290 = 0x28;
  *(uint32_t*)0x200000000294 = -1;
  *(uint32_t*)0x200000000298 = 0;
  memset((void*)0x20000000029c, 0, 16);
  *(uint32_t*)0x2000000002ac = 0;
  *(uint32_t*)0x2000000002b0 = -1;
  *(uint32_t*)0x2000000002b4 = 0;
  *(uint32_t*)0x2000000002b8 = 0;
  *(uint32_t*)0x2000000002bc = 0;
  *(uint64_t*)0x2000000002c0 = 0;
  *(uint32_t*)0x2000000002c8 = 0;
  *(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 = 0x11 (4 bytes)
  //        ninsn: bytesize8 = 0x8 (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 {
  //                  tail_call: bpf_insn_tail_call {
  //                    insn1: bpf_insn_map_fd_t[const[BPF_REG_2, int8:4],
  //                    tail_call_map] {
  //                      code: const = 0x18 (1 bytes)
  //                      dst: const = 0x2 (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_3, int8:4], const[0, int8:4], const[0,
  //                    int16], const[0, 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 = 0x0 (4 bytes)
  //                    }
  //                    insn3: bpf_insn_call_helper_t[const[BPF_FUNC_tail_call,
  //                    int32]] {
  //                      code: const = 0x85 (1 bytes)
  //                      regs: const = 0x0 (1 bytes)
  //                      off: const = 0x0 (2 bytes)
  //                      func: const = 0x1b (4 bytes)
  //                    }
  //                    insn4: bpf_insn_alu_t[BPF_ALU64, BPF_K0, BPF_MOV0,
  //                    const[BPF_REG_0, int8:4], const[0, int8:4], const[0,
  //                    int16], const[0, int32]] {
  //                      code_class: int8 = 0x7 (0 bytes)
  //                      code_s: int8 = 0x0 (0 bytes)
  //                      code_op: int8 = 0xb (1 bytes)
  //                      dst: const = 0x0 (0 bytes)
  //                      src: const = 0x0 (1 bytes)
  //                      off: const = 0x0 (2 bytes)
  //                      imm: const = 0x0 (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: 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 = 0x2d (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
  *(uint32_t*)0x200000000680 = 0x11;
  *(uint32_t*)0x200000000684 = 8;
  *(uint64_t*)0x200000000688 = 0x200000000080;
  *(uint8_t*)0x200000000080 = 0x18;
  STORE_BY_BITMASK(uint8_t, , 0x200000000081, 0, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000081, 0, 4, 4);
  *(uint16_t*)0x200000000082 = 0;
  *(uint32_t*)0x200000000084 = 0;
  *(uint8_t*)0x200000000088 = 0;
  *(uint8_t*)0x200000000089 = 0;
  *(uint16_t*)0x20000000008a = 0;
  *(uint32_t*)0x20000000008c = 0;
  *(uint8_t*)0x200000000090 = 0x18;
  STORE_BY_BITMASK(uint8_t, , 0x200000000091, 2, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000091, 1, 4, 4);
  *(uint16_t*)0x200000000092 = 0;
  *(uint32_t*)0x200000000094 = r[0];
  *(uint8_t*)0x200000000098 = 0;
  *(uint8_t*)0x200000000099 = 0;
  *(uint16_t*)0x20000000009a = 0;
  *(uint32_t*)0x20000000009c = 0;
  STORE_BY_BITMASK(uint8_t, , 0x2000000000a0, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x2000000000a0, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x2000000000a0, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x2000000000a1, 3, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x2000000000a1, 0, 4, 4);
  *(uint16_t*)0x2000000000a2 = 0;
  *(uint32_t*)0x2000000000a4 = 0;
  *(uint8_t*)0x2000000000a8 = 0x85;
  *(uint8_t*)0x2000000000a9 = 0;
  *(uint16_t*)0x2000000000aa = 0;
  *(uint32_t*)0x2000000000ac = 0x1b;
  STORE_BY_BITMASK(uint8_t, , 0x2000000000b0, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x2000000000b0, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x2000000000b0, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x2000000000b1, 0, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x2000000000b1, 0, 4, 4);
  *(uint16_t*)0x2000000000b2 = 0;
  *(uint32_t*)0x2000000000b4 = 0;
  *(uint8_t*)0x2000000000b8 = 0x95;
  *(uint8_t*)0x2000000000b9 = 0;
  *(uint16_t*)0x2000000000ba = 0;
  *(uint32_t*)0x2000000000bc = 0;
  *(uint64_t*)0x200000000690 = 0x200000000780;
  memcpy((void*)0x200000000780, "GPL\000", 4);
  *(uint32_t*)0x200000000698 = 0;
  *(uint32_t*)0x20000000069c = 0;
  *(uint64_t*)0x2000000006a0 = 0;
  *(uint32_t*)0x2000000006a8 = 0x41000;
  *(uint32_t*)0x2000000006ac = 0;
  memset((void*)0x2000000006b0, 0, 16);
  *(uint32_t*)0x2000000006c0 = 0;
  *(uint32_t*)0x2000000006c4 = 0x2d;
  *(uint32_t*)0x2000000006c8 = 0;
  *(uint32_t*)0x2000000006cc = 0;
  *(uint64_t*)0x2000000006d0 = 0;
  *(uint32_t*)0x2000000006d8 = 0;
  *(uint32_t*)0x2000000006dc = 0;
  *(uint64_t*)0x2000000006e0 = 0;
  *(uint32_t*)0x2000000006e8 = 0;
  *(uint32_t*)0x2000000006ec = 0;
  *(uint32_t*)0x2000000006f0 = 0;
  *(uint32_t*)0x2000000006f4 = 0;
  *(uint64_t*)0x2000000006f8 = 0;
  *(uint64_t*)0x200000000700 = 0;
  *(uint32_t*)0x200000000708 = 0;
  *(uint32_t*)0x20000000070c = 0;
  *(uint32_t*)0x200000000710 = 0;
  res =
      syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000000680ul, /*size=*/0x94ul);
  if (res != -1)
    r[1] = res;
  //  bpf$BPF_RAW_TRACEPOINT_OPEN arguments: [
  //    cmd: const = 0x11 (8 bytes)
  //    arg: ptr[in, bpf_raw_tracepoint] {
  //      bpf_raw_tracepoint {
  //        name: ptr[in, buffer] {
  //          buffer: {6b 66 72 65 65 00} (length 0x6)
  //        }
  //        prog_fd: fd_bpf_prog_raw_tracepoint (resource)
  //        pad: const = 0x0 (4 bytes)
  //        cookie: int64 = 0x0 (8 bytes)
  //      }
  //    }
  //    size: len = 0x18 (8 bytes)
  //  ]
  //  returns fd_perf_base
  *(uint64_t*)0x200000000f40 = 0x200000000f00;
  memcpy((void*)0x200000000f00, "kfree\000", 6);
  *(uint32_t*)0x200000000f48 = r[1];
  *(uint32_t*)0x200000000f4c = 0;
  *(uint64_t*)0x200000000f50 = 0;
  syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0x200000000f40ul, /*size=*/0x18ul);
}
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);
  const char* reason;
  (void)reason;
  for (procid = 0; procid < 5; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}