// https://syzkaller.appspot.com/bug?id=8fc4ac2bd63ac049e7a369676b65f047f65d7736
// 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/mount.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>

static void sleep_ms(uint64_t ms)
{
  usleep(ms * 1000);
}

static uint64_t current_time_ms(void)
{
  struct timespec ts;
  if (clock_gettime(CLOCK_MONOTONIC, &ts))
    exit(1);
  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

static 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)) {
  }
  //  openat$kvm arguments: [
  //    fd: const = 0xffffffffffffff9c (8 bytes)
  //    file: ptr[in, buffer] {
  //      buffer: {2f 64 65 76 2f 6b 76 6d 00} (length 0x9)
  //    }
  //    flags: open_flags = 0x0 (4 bytes)
  //    mode: const = 0x0 (2 bytes)
  //  ]
  //  returns fd_kvm
  memcpy((void*)0x200000000000, "/dev/kvm\000", 9);
  res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul,
                /*file=*/0x200000000000ul, /*flags=*/0, /*mode=*/0);
  if (res != -1)
    r[0] = res;
  //  ioctl$KVM_CREATE_VM arguments: [
  //    fd: fd_kvm (resource)
  //    cmd: const = 0xae01 (4 bytes)
  //    type: intptr = 0x0 (8 bytes)
  //  ]
  //  returns fd_kvmvm
  res = syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xae01, /*type=*/0ul);
  if (res != -1)
    r[1] = res;
  //  ioctl$KVM_CREATE_VCPU arguments: [
  //    fd: fd_kvmvm (resource)
  //    cmd: const = 0xae41 (4 bytes)
  //    id: intptr = 0x0 (8 bytes)
  //  ]
  //  returns fd_kvmcpu
  syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0xae41, /*id=*/0ul);
  //  ioctl$KVM_SET_IRQCHIP arguments: [
  //    fd: fd_kvmvm (resource)
  //    cmd: const = 0x400caed0 (4 bytes)
  //    arg: ptr[in, kvm_irqchip] {
  //      kvm_irqchip {
  //        chipid: kvm_chip_id = 0x1 (4 bytes)
  //        pad: const = 0x0 (4 bytes)
  //        chip: union kvm_irq_chip {
  //          ioapic: kvm_ioapic_state {
  //            base: kvm_guest_addrs = 0xffffffff (8 bytes)
  //            ioregs: int32 = 0x296d (4 bytes)
  //            id: int32 = 0x4 (4 bytes)
  //            irr: int32 = 0x6 (4 bytes)
  //            pad: const = 0x0 (4 bytes)
  //            redir: array[kvm_ioapic_redir] {
  //              kvm_ioapic_redir {
  //                vector: int8 = 0x98 (1 bytes)
  //                f0: int8 = 0x5d (1 bytes)
  //                f1: int8 = 0x7f (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0x7f (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0x41 (1 bytes)
  //                f0: int8 = 0x8 (1 bytes)
  //                f1: int8 = 0x81 (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0x3 (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0xf (1 bytes)
  //                f0: int8 = 0x5 (1 bytes)
  //                f1: int8 = 0x2 (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0x13 (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0x3 (1 bytes)
  //                f0: int8 = 0xa6 (1 bytes)
  //                f1: int8 = 0x8 (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0x8f (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0x3 (1 bytes)
  //                f0: int8 = 0x7f (1 bytes)
  //                f1: int8 = 0x91 (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0xa (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0xf (1 bytes)
  //                f0: int8 = 0xe3 (1 bytes)
  //                f1: int8 = 0x0 (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0xac (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0x3 (1 bytes)
  //                f0: int8 = 0xa (1 bytes)
  //                f1: int8 = 0x6 (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0x8 (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0x1 (1 bytes)
  //                f0: int8 = 0xfa (1 bytes)
  //                f1: int8 = 0x6 (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0x67 (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0x2 (1 bytes)
  //                f0: int8 = 0x7 (1 bytes)
  //                f1: int8 = 0x2 (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0x8 (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0x8 (1 bytes)
  //                f0: int8 = 0x4 (1 bytes)
  //                f1: int8 = 0x43 (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0x9f (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0xf (1 bytes)
  //                f0: int8 = 0x8 (1 bytes)
  //                f1: int8 = 0x6 (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0x8 (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0x2 (1 bytes)
  //                f0: int8 = 0x4c (1 bytes)
  //                f1: int8 = 0x3 (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0xa (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0x7 (1 bytes)
  //                f0: int8 = 0xe (1 bytes)
  //                f1: int8 = 0x2 (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0xa6 (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0x8 (1 bytes)
  //                f0: int8 = 0x0 (1 bytes)
  //                f1: int8 = 0x28 (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0x9 (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0x2 (1 bytes)
  //                f0: int8 = 0x4c (1 bytes)
  //                f1: int8 = 0xdd (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0x1 (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0x8 (1 bytes)
  //                f0: int8 = 0x5e (1 bytes)
  //                f1: int8 = 0x4 (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0x3 (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0x5 (1 bytes)
  //                f0: int8 = 0xa0 (1 bytes)
  //                f1: int8 = 0x47 (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0x6 (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0x7 (1 bytes)
  //                f0: int8 = 0x3 (1 bytes)
  //                f1: int8 = 0x2 (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0xa7 (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0x4 (1 bytes)
  //                f0: int8 = 0x0 (1 bytes)
  //                f1: int8 = 0x7 (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0x7 (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0x5e (1 bytes)
  //                f0: int8 = 0xa (1 bytes)
  //                f1: int8 = 0xb (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0x3 (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0x7f (1 bytes)
  //                f0: int8 = 0x6 (1 bytes)
  //                f1: int8 = 0xca (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0x4 (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0x93 (1 bytes)
  //                f0: int8 = 0x44 (1 bytes)
  //                f1: int8 = 0x9 (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0x10 (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0x2 (1 bytes)
  //                f0: int8 = 0x8 (1 bytes)
  //                f1: int8 = 0x0 (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0xfc (1 bytes)
  //              }
  //              kvm_ioapic_redir {
  //                vector: int8 = 0x6 (1 bytes)
  //                f0: int8 = 0xc (1 bytes)
  //                f1: int8 = 0xc6 (1 bytes)
  //                reserv: buffer: {00 00 00 00} (length 0x4)
  //                destid: int8 = 0x8 (1 bytes)
  //              }
  //            }
  //          }
  //        }
  //      }
  //    }
  //  ]
  *(uint32_t*)0x200000000980 = 1;
  *(uint32_t*)0x200000000984 = 0;
  *(uint64_t*)0x200000000988 = 0xffffffff;
  *(uint32_t*)0x200000000990 = 0x296d;
  *(uint32_t*)0x200000000994 = 4;
  *(uint32_t*)0x200000000998 = 6;
  *(uint32_t*)0x20000000099c = 0;
  *(uint8_t*)0x2000000009a0 = 0x98;
  *(uint8_t*)0x2000000009a1 = 0x5d;
  *(uint8_t*)0x2000000009a2 = 0x7f;
  memset((void*)0x2000000009a3, 0, 4);
  *(uint8_t*)0x2000000009a7 = 0x7f;
  *(uint8_t*)0x2000000009a8 = 0x41;
  *(uint8_t*)0x2000000009a9 = 8;
  *(uint8_t*)0x2000000009aa = 0x81;
  memset((void*)0x2000000009ab, 0, 4);
  *(uint8_t*)0x2000000009af = 3;
  *(uint8_t*)0x2000000009b0 = 0xf;
  *(uint8_t*)0x2000000009b1 = 5;
  *(uint8_t*)0x2000000009b2 = 2;
  memset((void*)0x2000000009b3, 0, 4);
  *(uint8_t*)0x2000000009b7 = 0x13;
  *(uint8_t*)0x2000000009b8 = 3;
  *(uint8_t*)0x2000000009b9 = 0xa6;
  *(uint8_t*)0x2000000009ba = 8;
  memset((void*)0x2000000009bb, 0, 4);
  *(uint8_t*)0x2000000009bf = 0x8f;
  *(uint8_t*)0x2000000009c0 = 3;
  *(uint8_t*)0x2000000009c1 = 0x7f;
  *(uint8_t*)0x2000000009c2 = 0x91;
  memset((void*)0x2000000009c3, 0, 4);
  *(uint8_t*)0x2000000009c7 = 0xa;
  *(uint8_t*)0x2000000009c8 = 0xf;
  *(uint8_t*)0x2000000009c9 = 0xe3;
  *(uint8_t*)0x2000000009ca = 0;
  memset((void*)0x2000000009cb, 0, 4);
  *(uint8_t*)0x2000000009cf = 0xac;
  *(uint8_t*)0x2000000009d0 = 3;
  *(uint8_t*)0x2000000009d1 = 0xa;
  *(uint8_t*)0x2000000009d2 = 6;
  memset((void*)0x2000000009d3, 0, 4);
  *(uint8_t*)0x2000000009d7 = 8;
  *(uint8_t*)0x2000000009d8 = 1;
  *(uint8_t*)0x2000000009d9 = 0xfa;
  *(uint8_t*)0x2000000009da = 6;
  memset((void*)0x2000000009db, 0, 4);
  *(uint8_t*)0x2000000009df = 0x67;
  *(uint8_t*)0x2000000009e0 = 2;
  *(uint8_t*)0x2000000009e1 = 7;
  *(uint8_t*)0x2000000009e2 = 2;
  memset((void*)0x2000000009e3, 0, 4);
  *(uint8_t*)0x2000000009e7 = 8;
  *(uint8_t*)0x2000000009e8 = 8;
  *(uint8_t*)0x2000000009e9 = 4;
  *(uint8_t*)0x2000000009ea = 0x43;
  memset((void*)0x2000000009eb, 0, 4);
  *(uint8_t*)0x2000000009ef = 0x9f;
  *(uint8_t*)0x2000000009f0 = 0xf;
  *(uint8_t*)0x2000000009f1 = 8;
  *(uint8_t*)0x2000000009f2 = 6;
  memset((void*)0x2000000009f3, 0, 4);
  *(uint8_t*)0x2000000009f7 = 8;
  *(uint8_t*)0x2000000009f8 = 2;
  *(uint8_t*)0x2000000009f9 = 0x4c;
  *(uint8_t*)0x2000000009fa = 3;
  memset((void*)0x2000000009fb, 0, 4);
  *(uint8_t*)0x2000000009ff = 0xa;
  *(uint8_t*)0x200000000a00 = 7;
  *(uint8_t*)0x200000000a01 = 0xe;
  *(uint8_t*)0x200000000a02 = 2;
  memset((void*)0x200000000a03, 0, 4);
  *(uint8_t*)0x200000000a07 = 0xa6;
  *(uint8_t*)0x200000000a08 = 8;
  *(uint8_t*)0x200000000a09 = 0;
  *(uint8_t*)0x200000000a0a = 0x28;
  memset((void*)0x200000000a0b, 0, 4);
  *(uint8_t*)0x200000000a0f = 9;
  *(uint8_t*)0x200000000a10 = 2;
  *(uint8_t*)0x200000000a11 = 0x4c;
  *(uint8_t*)0x200000000a12 = 0xdd;
  memset((void*)0x200000000a13, 0, 4);
  *(uint8_t*)0x200000000a17 = 1;
  *(uint8_t*)0x200000000a18 = 8;
  *(uint8_t*)0x200000000a19 = 0x5e;
  *(uint8_t*)0x200000000a1a = 4;
  memset((void*)0x200000000a1b, 0, 4);
  *(uint8_t*)0x200000000a1f = 3;
  *(uint8_t*)0x200000000a20 = 5;
  *(uint8_t*)0x200000000a21 = 0xa0;
  *(uint8_t*)0x200000000a22 = 0x47;
  memset((void*)0x200000000a23, 0, 4);
  *(uint8_t*)0x200000000a27 = 6;
  *(uint8_t*)0x200000000a28 = 7;
  *(uint8_t*)0x200000000a29 = 3;
  *(uint8_t*)0x200000000a2a = 2;
  memset((void*)0x200000000a2b, 0, 4);
  *(uint8_t*)0x200000000a2f = 0xa7;
  *(uint8_t*)0x200000000a30 = 4;
  *(uint8_t*)0x200000000a31 = 0;
  *(uint8_t*)0x200000000a32 = 7;
  memset((void*)0x200000000a33, 0, 4);
  *(uint8_t*)0x200000000a37 = 7;
  *(uint8_t*)0x200000000a38 = 0x5e;
  *(uint8_t*)0x200000000a39 = 0xa;
  *(uint8_t*)0x200000000a3a = 0xb;
  memset((void*)0x200000000a3b, 0, 4);
  *(uint8_t*)0x200000000a3f = 3;
  *(uint8_t*)0x200000000a40 = 0x7f;
  *(uint8_t*)0x200000000a41 = 6;
  *(uint8_t*)0x200000000a42 = 0xca;
  memset((void*)0x200000000a43, 0, 4);
  *(uint8_t*)0x200000000a47 = 4;
  *(uint8_t*)0x200000000a48 = 0x93;
  *(uint8_t*)0x200000000a49 = 0x44;
  *(uint8_t*)0x200000000a4a = 9;
  memset((void*)0x200000000a4b, 0, 4);
  *(uint8_t*)0x200000000a4f = 0x10;
  *(uint8_t*)0x200000000a50 = 2;
  *(uint8_t*)0x200000000a51 = 8;
  *(uint8_t*)0x200000000a52 = 0;
  memset((void*)0x200000000a53, 0, 4);
  *(uint8_t*)0x200000000a57 = 0xfc;
  *(uint8_t*)0x200000000a58 = 6;
  *(uint8_t*)0x200000000a59 = 0xc;
  *(uint8_t*)0x200000000a5a = 0xc6;
  memset((void*)0x200000000a5b, 0, 4);
  *(uint8_t*)0x200000000a5f = 8;
  syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0x400caed0,
          /*arg=*/0x200000000980ul);
}
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);
  const char* reason;
  (void)reason;
  loop();
  return 0;
}