// https://syzkaller.appspot.com/bug?id=41b2c3317a7387d913c029075d26f4c4fa0d1cb3
// 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[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  socket$nl_xfrm arguments: [
  //    domain: const = 0x10 (8 bytes)
  //    type: const = 0x3 (8 bytes)
  //    proto: const = 0x6 (4 bytes)
  //  ]
  //  returns sock_nl_xfrm
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/6);
  if (res != -1)
    r[0] = res;
  //  sendmsg$nl_xfrm arguments: [
  //    fd: sock_nl_xfrm (resource)
  //    msg: ptr[in, msghdr_netlink[netlink_msg_xfrm]] {
  //      msghdr_netlink[netlink_msg_xfrm] {
  //        addr: nil
  //        addrlen: len = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        vec: ptr[in, iovec[in, netlink_msg_xfrm]] {
  //          iovec[in, netlink_msg_xfrm] {
  //            addr: ptr[in, netlink_msg_xfrm] {
  //              union netlink_msg_xfrm {
  //                newsa: netlink_msg_t[const[XFRM_MSG_NEWSA, int16],
  //                xfrm_usersa_info, xfrma_policy] {
  //                  len: len = 0x150 (4 bytes)
  //                  type: const = 0x10 (2 bytes)
  //                  flags: netlink_msg_flags = 0x1 (2 bytes)
  //                  seq: int32 = 0x0 (4 bytes)
  //                  pid: int32 = 0x0 (4 bytes)
  //                  payload: xfrm_usersa_info {
  //                    sel: xfrm_selector {
  //                      daddr: union xfrm_address_t {
  //                        in: union ipv4_addr {
  //                          loopback: const = 0x7f000001 (4 bytes)
  //                        }
  //                      }
  //                      saddr: union xfrm_address_t {
  //                        in: union ipv4_addr {
  //                          loopback: const = 0x7f000001 (4 bytes)
  //                        }
  //                      }
  //                      dport: int16be = 0x0 (2 bytes)
  //                      dport_mask: int16be = 0x0 (2 bytes)
  //                      sport: int16be = 0x0 (2 bytes)
  //                      sport_mask: int16be = 0x0 (2 bytes)
  //                      family: xfrm_family = 0x2 (2 bytes)
  //                      prefixlen_d: xfrm_prefixlens = 0x20 (1 bytes)
  //                      prefixlen_s: xfrm_prefixlens = 0x20 (1 bytes)
  //                      proto: ipv6_types = 0x0 (1 bytes)
  //                      pad = 0x0 (3 bytes)
  //                      ifindex: ifindex (resource)
  //                      user: uid (resource)
  //                    }
  //                    id: xfrm_id {
  //                      daddr: union xfrm_address_t {
  //                        in: union ipv4_addr {
  //                          loopback: const = 0x7f000001 (4 bytes)
  //                        }
  //                      }
  //                      spi: int32be = 0xbe3412 (4 bytes)
  //                      proto: xfrm_proto = 0x32 (1 bytes)
  //                      pad = 0x0 (3 bytes)
  //                    }
  //                    saddr: union xfrm_address_t {
  //                      in: union ipv4_addr {
  //                        loopback: const = 0x7f000001 (4 bytes)
  //                      }
  //                    }
  //                    lft: xfrm_lifetime_cfg {
  //                      soft_byte_limit: int64 = 0x0 (8 bytes)
  //                      hard_byte_limit: int64 = 0x0 (8 bytes)
  //                      soft_packet_limit: int64 = 0x0 (8 bytes)
  //                      hard_packet_limit: int64 = 0x0 (8 bytes)
  //                      soft_add_expires_seconds: int64 = 0x0 (8 bytes)
  //                      hard_add_expires_seconds: int64 = 0x0 (8 bytes)
  //                      soft_use_expires_seconds: int64 = 0x0 (8 bytes)
  //                      hard_use_expires_seconds: int64 = 0x0 (8 bytes)
  //                    }
  //                    curlft: xfrm_lifetime_cur {
  //                      bytes: int64 = 0x0 (8 bytes)
  //                      packets: int64 = 0x0 (8 bytes)
  //                      add_time: int64 = 0x0 (8 bytes)
  //                      use_time: int64 = 0x0 (8 bytes)
  //                    }
  //                    stats: xfrm_stats {
  //                      replay_window: int32 = 0x0 (4 bytes)
  //                      replay: int32 = 0x0 (4 bytes)
  //                      integrity_failed: int32 = 0x0 (4 bytes)
  //                    }
  //                    seq: int32 = 0x0 (4 bytes)
  //                    reqid: int32 = 0x1 (4 bytes)
  //                    family: xfrm_family = 0x2 (2 bytes)
  //                    mode: xfrm_mode = 0x0 (1 bytes)
  //                    replay_window: int8 = 0x0 (1 bytes)
  //                    flags: xfrm_state = 0x0 (1 bytes)
  //                    pad = 0x0 (7 bytes)
  //                  }
  //                  attrs: array[xfrma_policy] {
  //                    union xfrma_policy {
  //                      algo_aead: nlattr_t[const[XFRMA_ALG_AEAD, int16],
  //                      xfrm_algo_aead] {
  //                        nla_len: offsetof = 0x60 (2 bytes)
  //                        nla_type: const = 0x12 (2 bytes)
  //                        payload: xfrm_algo_aead {
  //                          alg_name: alg_aead_name {
  //                            name: buffer: {72 66 63 34 31 30 36 28 67 63 6d
  //                            28 61 65 73 29 29 00 00 00 00 00 00 00 00 00 00
  //                            00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                            00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                            00 00 00 00 00} (length 0x40)
  //                          }
  //                          alg_key_len: bitsize = 0xa0 (4 bytes)
  //                          alg_icv_len: xfrm_algo_truncbits = 0x60 (4 bytes)
  //                          alg_key: buffer: {21 04 66 d3 85 47 aa 14 0d b9 a2
  //                          00 00 00 00 c5 38 c7 cb 7a} (length 0x14)
  //                        }
  //                        size: buffer: {} (length 0x0)
  //                      }
  //                    }
  //                  }
  //                }
  //              }
  //            }
  //            len: len = 0x150 (8 bytes)
  //          }
  //        }
  //        vlen: const = 0x1 (8 bytes)
  //        ctrl: const = 0x0 (8 bytes)
  //        ctrllen: const = 0x0 (8 bytes)
  //        f: send_flags = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    f: send_flags = 0x0 (8 bytes)
  //  ]
  *(uint64_t*)0x2000000003c0 = 0;
  *(uint32_t*)0x2000000003c8 = 0;
  *(uint64_t*)0x2000000003d0 = 0x200000000380;
  *(uint64_t*)0x200000000380 = 0x200000000000;
  *(uint32_t*)0x200000000000 = 0x150;
  *(uint16_t*)0x200000000004 = 0x10;
  *(uint16_t*)0x200000000006 = 1;
  *(uint32_t*)0x200000000008 = 0;
  *(uint32_t*)0x20000000000c = 0;
  *(uint32_t*)0x200000000010 = htobe32(0x7f000001);
  *(uint32_t*)0x200000000020 = htobe32(0x7f000001);
  *(uint16_t*)0x200000000030 = htobe16(0);
  *(uint16_t*)0x200000000032 = htobe16(0);
  *(uint16_t*)0x200000000034 = htobe16(0);
  *(uint16_t*)0x200000000036 = htobe16(0);
  *(uint16_t*)0x200000000038 = 2;
  *(uint8_t*)0x20000000003a = 0x20;
  *(uint8_t*)0x20000000003b = 0x20;
  *(uint8_t*)0x20000000003c = 0;
  *(uint32_t*)0x200000000040 = 0;
  *(uint32_t*)0x200000000044 = 0;
  *(uint32_t*)0x200000000048 = htobe32(0x7f000001);
  *(uint32_t*)0x200000000058 = htobe32(0xbe3412);
  *(uint8_t*)0x20000000005c = 0x32;
  *(uint32_t*)0x200000000060 = htobe32(0x7f000001);
  *(uint64_t*)0x200000000070 = 0;
  *(uint64_t*)0x200000000078 = 0;
  *(uint64_t*)0x200000000080 = 0;
  *(uint64_t*)0x200000000088 = 0;
  *(uint64_t*)0x200000000090 = 0;
  *(uint64_t*)0x200000000098 = 0;
  *(uint64_t*)0x2000000000a0 = 0;
  *(uint64_t*)0x2000000000a8 = 0;
  *(uint64_t*)0x2000000000b0 = 0;
  *(uint64_t*)0x2000000000b8 = 0;
  *(uint64_t*)0x2000000000c0 = 0;
  *(uint64_t*)0x2000000000c8 = 0;
  *(uint32_t*)0x2000000000d0 = 0;
  *(uint32_t*)0x2000000000d4 = 0;
  *(uint32_t*)0x2000000000d8 = 0;
  *(uint32_t*)0x2000000000dc = 0;
  *(uint32_t*)0x2000000000e0 = 1;
  *(uint16_t*)0x2000000000e4 = 2;
  *(uint8_t*)0x2000000000e6 = 0;
  *(uint8_t*)0x2000000000e7 = 0;
  *(uint8_t*)0x2000000000e8 = 0;
  *(uint16_t*)0x2000000000f0 = 0x60;
  *(uint16_t*)0x2000000000f2 = 0x12;
  memcpy((void*)0x2000000000f4,
         "rfc4106(gcm(aes))"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000",
         64);
  *(uint32_t*)0x200000000134 = 0xa0;
  *(uint32_t*)0x200000000138 = 0x60;
  memcpy((void*)0x20000000013c,
         "\x21\x04\x66\xd3\x85\x47\xaa\x14\x0d\xb9\xa2\x00\x00\x00\x00\xc5\x38"
         "\xc7\xcb\x7a",
         20);
  *(uint64_t*)0x200000000388 = 0x150;
  *(uint64_t*)0x2000000003d8 = 1;
  *(uint64_t*)0x2000000003e0 = 0;
  *(uint64_t*)0x2000000003e8 = 0;
  *(uint32_t*)0x2000000003f0 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[0], /*msg=*/0x2000000003c0ul, /*f=*/0ul);
  //  sendmsg$nl_xfrm arguments: [
  //    fd: sock_nl_xfrm (resource)
  //    msg: ptr[in, msghdr_netlink[netlink_msg_xfrm]] {
  //      msghdr_netlink[netlink_msg_xfrm] {
  //        addr: nil
  //        addrlen: len = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        vec: ptr[in, iovec[in, netlink_msg_xfrm]] {
  //          iovec[in, netlink_msg_xfrm] {
  //            addr: ptr[inout, array[ANYUNION]] {
  //              array[ANYUNION] {
  //                union ANYUNION {
  //                  ANYBLOB: buffer: {94 00 00 00 29 00 01 00 00 00 00 00 00
  //                  00 00 00 7f 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00
  //                  00 be 34 12 02 00 32 00 7f 00 00 02 00 00 00 00 00 00 00
  //                  00 00 00 00 00 7f 00 00 01 00 00 00 00 00 00 00 00 00 00
  //                  00 00 00 00 00 00 00 00 00 00 7f 00 00 01 00 00 00 00 00
  //                  00 00 00 00 00 00 00 7f 00 00 01 00 00 00 00 00 00 00 00
  //                  00 00 00 00 00 00 00 00 00 00 00 00 02 00 20 20 00 00 00
  //                  00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 02 00
  //                  00 00} (length 0x94)
  //                }
  //              }
  //            }
  //            len: len = 0x94 (8 bytes)
  //          }
  //        }
  //        vlen: const = 0x1 (8 bytes)
  //        ctrl: const = 0x0 (8 bytes)
  //        ctrllen: const = 0x0 (8 bytes)
  //        f: send_flags = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    f: send_flags = 0x0 (8 bytes)
  //  ]
  *(uint64_t*)0x200000000500 = 0;
  *(uint32_t*)0x200000000508 = 0;
  *(uint64_t*)0x200000000510 = 0x200000000400;
  *(uint64_t*)0x200000000400 = 0x200000000000;
  memcpy((void*)0x200000000000,
         "\x94\x00\x00\x00\x29\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x7f"
         "\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xbe"
         "\x34\x12\x02\x00\x32\x00\x7f\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00"
         "\x00\x00\x00\x00\x00\x7f\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00"
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x7f\x00\x00\x01\x00"
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x7f\x00\x00\x01\x00\x00"
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
         "\x00\x02\x00\x20\x20\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
         "\x01\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00",
         148);
  *(uint64_t*)0x200000000408 = 0x94;
  *(uint64_t*)0x200000000518 = 1;
  *(uint64_t*)0x200000000520 = 0;
  *(uint64_t*)0x200000000528 = 0;
  *(uint32_t*)0x200000000530 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[0], /*msg=*/0x200000000500ul, /*f=*/0ul);
}
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;
}