// https://syzkaller.appspot.com/bug?id=8a58be398ed632e3773490958041cdf9851d7aec
// 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>

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;
}

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)) {
  }
  //  socket$inet6_tcp arguments: [
  //    domain: const = 0xa (8 bytes)
  //    type: const = 0x1 (8 bytes)
  //    proto: const = 0x0 (4 bytes)
  //  ]
  //  returns sock_tcp6
  res = syscall(__NR_socket, /*domain=*/0xaul, /*type=*/1ul, /*proto=*/0);
  if (res != -1)
    r[0] = res;
  //  setsockopt$inet6_tcp_int arguments: [
  //    fd: sock_tcp6 (resource)
  //    level: const = 0x6 (4 bytes)
  //    optname: tcp_option_types_int = 0x13 (4 bytes)
  //    optval: ptr[in, int32] {
  //      int32 = 0x100000001 (4 bytes)
  //    }
  //    optlen: len = 0x4 (8 bytes)
  //  ]
  *(uint32_t*)0x200000000000 = 1;
  syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/6,
          /*optname=TCP_THIN_LINEAR_TIMEOUTS|TCP_CORK*/ 0x13,
          /*optval=*/0x200000000000ul, /*optlen=*/4ul);
  //  connect$inet6 arguments: [
  //    fd: sock_in6 (resource)
  //    addr: ptr[in, sockaddr_in6] {
  //      sockaddr_in6 {
  //        family: const = 0xa (2 bytes)
  //        port: int16be = 0x0 (2 bytes)
  //        flow: int32be = 0x2 (4 bytes)
  //        addr: union ipv6_addr {
  //          loopback: ipv6_addr_loopback {
  //            a0: const = 0x0 (8 bytes)
  //            a1: const = 0x1 (8 bytes)
  //          }
  //        }
  //        scope: int32 = 0x0 (4 bytes)
  //      }
  //    }
  //    addrlen: len = 0x1c (8 bytes)
  //  ]
  *(uint16_t*)0x200000000200 = 0xa;
  *(uint16_t*)0x200000000202 = htobe16(0);
  *(uint32_t*)0x200000000204 = htobe32(2);
  *(uint64_t*)0x200000000208 = htobe64(0);
  *(uint64_t*)0x200000000210 = htobe64(1);
  *(uint32_t*)0x200000000218 = 0;
  syscall(__NR_connect, /*fd=*/r[0], /*addr=*/0x200000000200ul,
          /*addrlen=*/0x1cul);
  //  setsockopt$inet6_tcp_TCP_ULP arguments: [
  //    fd: sock_tcp6 (resource)
  //    level: const = 0x6 (4 bytes)
  //    optname: const = 0x1f (4 bytes)
  //    optval: ptr[in, buffer] {
  //      buffer: {74 6c 73} (length 0x3)
  //    }
  //    optlen: len = 0x4 (8 bytes)
  //  ]
  memcpy((void*)0x2000000000c0, "tls", 3);
  syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/6, /*optname=*/0x1f,
          /*optval=*/0x2000000000c0ul, /*optlen=*/4ul);
  //  setsockopt$inet6_tcp_TLS_TX arguments: [
  //    fd: sock_tcp6 (resource)
  //    level: const = 0x11a (4 bytes)
  //    optname: const = 0x1 (4 bytes)
  //    optval: ptr[in, tls_crypto_info_u] {
  //      union tls_crypto_info_u {
  //        gcm_128: tls12_crypto_info_aes_gcm_128 {
  //          info: tls_crypto_info[TLS_CIPHER_AES_GCM_128] {
  //            version: tls_crypto_version = 0x303 (2 bytes)
  //            cipher_type: const = 0x33 (2 bytes)
  //          }
  //          iv: buffer: {87 ee 8a c6 c4 6d ad 33} (length 0x8)
  //          key: buffer: {26 07 08 0d 7f 4f cf 00 fd 4e f2 de ce 6c 7c 58}
  //          (length 0x10) salt: buffer: {00 00 00 00} (length 0x4) rec_seq:
  //          buffer: {23 00 00 00 00 00 00 00} (length 0x8)
  //        }
  //      }
  //    }
  //    optlen: len = 0x28 (8 bytes)
  //  ]
  *(uint16_t*)0x200000000140 = 0x303;
  *(uint16_t*)0x200000000142 = 0x33;
  memcpy((void*)0x200000000144, "\x87\xee\x8a\xc6\xc4\x6d\xad\x33", 8);
  memcpy((void*)0x20000000014c,
         "\x26\x07\x08\x0d\x7f\x4f\xcf\x00\xfd\x4e\xf2\xde\xce\x6c\x7c\x58",
         16);
  memset((void*)0x20000000015c, 0, 4);
  memcpy((void*)0x200000000160, "#\000\000\000\000\000\000\000", 8);
  syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x11a, /*optname=*/1,
          /*optval=*/0x200000000140ul, /*optlen=*/0x28ul);
  //  setsockopt$inet6_group_source_req arguments: [
  //    fd: sock_in6 (resource)
  //    level: const = 0x29 (4 bytes)
  //    optname: sockopt_opt_group_source_req = 0x2e (4 bytes)
  //    optval: ptr[in, group_source_req_in6] {
  //      group_source_req_in6 {
  //        gsr_interface: int32 = 0x1 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        gsr_group: sockaddr_storage_in6 {
  //          addr: sockaddr_in6 {
  //            family: const = 0xa (2 bytes)
  //            port: int16be = 0x0 (2 bytes)
  //            flow: int32be = 0x0 (4 bytes)
  //            addr: union ipv6_addr {
  //              mcast1: ipv6_addr_multicast1 {
  //                a0: const = 0xff (1 bytes)
  //                a1: const = 0x7 (1 bytes)
  //                a2: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00} (length
  //                0xd) a3: const = 0x1 (1 bytes)
  //              }
  //            }
  //            scope: int32 = 0x6 (4 bytes)
  //          }
  //          pad = 0x0 (4 bytes)
  //          pad = 0x0 (96 bytes)
  //        }
  //        gsr_source: sockaddr_storage_in6 {
  //          addr: sockaddr_in6 {
  //            family: const = 0xa (2 bytes)
  //            port: int16be = 0xfffe (2 bytes)
  //            flow: int32be = 0x0 (4 bytes)
  //            addr: union ipv6_addr {
  //              private1: ipv6_addr_private[1] {
  //                a0: const = 0xfc (1 bytes)
  //                a1: const = 0x1 (1 bytes)
  //                a2: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00} (length
  //                0xd) a3: int8 = 0x1 (1 bytes)
  //              }
  //            }
  //            scope: int32 = 0x3 (4 bytes)
  //          }
  //          pad = 0x0 (4 bytes)
  //          pad = 0x0 (96 bytes)
  //        }
  //      }
  //    }
  //    optlen: len = 0x108 (8 bytes)
  //  ]
  *(uint32_t*)0x200000000340 = 1;
  *(uint16_t*)0x200000000348 = 0xa;
  *(uint16_t*)0x20000000034a = htobe16(0);
  *(uint32_t*)0x20000000034c = htobe32(0);
  *(uint8_t*)0x200000000350 = -1;
  *(uint8_t*)0x200000000351 = 7;
  memset((void*)0x200000000352, 0, 13);
  *(uint8_t*)0x20000000035f = 1;
  *(uint32_t*)0x200000000360 = 6;
  *(uint16_t*)0x2000000003c8 = 0xa;
  *(uint16_t*)0x2000000003ca = htobe16(0xfffe);
  *(uint32_t*)0x2000000003cc = htobe32(0);
  *(uint8_t*)0x2000000003d0 = 0xfc;
  *(uint8_t*)0x2000000003d1 = 1;
  memset((void*)0x2000000003d2, 0, 13);
  *(uint8_t*)0x2000000003df = 1;
  *(uint32_t*)0x2000000003e0 = 3;
  syscall(__NR_setsockopt, /*fd=*/(intptr_t)-1, /*level=*/0x29,
          /*optname=MCAST_JOIN_SOURCE_GROUP*/ 0x2e, /*optval=*/0x200000000340ul,
          /*optlen=*/0x108ul);
  //  socket$netlink arguments: [
  //    domain: const = 0x10 (8 bytes)
  //    type: const = 0x3 (8 bytes)
  //    proto: netlink_proto = 0x0 (4 bytes)
  //  ]
  //  returns sock_netlink
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0);
  if (res != -1)
    r[1] = res;
  //  writev arguments: [
  //    fd: fd (resource)
  //    vec: ptr[in, array[iovec[in, array[int8]]]] {
  //      array[iovec[in, array[int8]]] {
  //        iovec[in, array[int8]] {
  //          addr: ptr[in, buffer] {
  //            buffer: {39 00 00 00 13 00 03 47 00 bb 65 e1 c3 e4 ff ff 01 00
  //            00 00 01 00 00 00 56 00 00 00 25 00 00 00 19 00 04 00 04 00 00
  //            00 07 fd 17 e5 ff ff 08 00 04 00 00 00 00 00 00 00 00} (length
  //            0x39)
  //          }
  //          len: len = 0x39 (8 bytes)
  //        }
  //      }
  //    }
  //    vlen: len = 0x1 (8 bytes)
  //  ]
  *(uint64_t*)0x2000000003c0 = 0x200000000280;
  memcpy((void*)0x200000000280,
         "\x39\x00\x00\x00\x13\x00\x03\x47\x00\xbb\x65\xe1\xc3\xe4\xff\xff\x01"
         "\x00\x00\x00\x01\x00\x00\x00\x56\x00\x00\x00\x25\x00\x00\x00\x19\x00"
         "\x04\x00\x04\x00\x00\x00\x07\xfd\x17\xe5\xff\xff\x08\x00\x04\x00\x00"
         "\x00\x00\x00\x00\x00\x00",
         57);
  *(uint64_t*)0x2000000003c8 = 0x39;
  syscall(__NR_writev, /*fd=*/r[1], /*vec=*/0x2000000003c0ul, /*vlen=*/1ul);
  //  writev arguments: [
  //    fd: fd (resource)
  //    vec: ptr[in, array[iovec[in, array[int8]]]] {
  //      array[iovec[in, array[int8]]] {
  //        iovec[in, array[int8]] {
  //          addr: ptr[in, buffer] {
  //            buffer: {39 00 00 00 13 00 03 47 00 bb 5b e1 c3 fb fe ff 06 00
  //            00 00 01 00 00 00 45 00 00 00 25 00 00 00 19 00 04 00 04 00 ad
  //            00 0d 00 00 00 00 00 00 06 04 00 00 00 00 00 f9 31 32} (length
  //            0x39)
  //          }
  //          len: len = 0x39 (8 bytes)
  //        }
  //      }
  //    }
  //    vlen: len = 0x1 (8 bytes)
  //  ]
  *(uint64_t*)0x200000000140 = 0x200000000080;
  memcpy((void*)0x200000000080,
         "\x39\x00\x00\x00\x13\x00\x03\x47\x00\xbb\x5b\xe1\xc3\xfb\xfe\xff\x06"
         "\x00\x00\x00\x01\x00\x00\x00\x45\x00\x00\x00\x25\x00\x00\x00\x19\x00"
         "\x04\x00\x04\x00\xad\x00\x0d\x00\x00\x00\x00\x00\x00\x06\x04\x00\x00"
         "\x00\x00\x00\xf9\x31\x32",
         57);
  *(uint64_t*)0x200000000148 = 0x39;
  syscall(__NR_writev, /*fd=*/r[1], /*vec=*/0x200000000140ul, /*vlen=*/1ul);
  //  setsockopt$sock_int arguments: [
  //    fd: sock (resource)
  //    level: const = 0x1 (4 bytes)
  //    optname: sockopt_opt_sock_int = 0xa (4 bytes)
  //    optval: ptr[in, int32] {
  //      int32 = 0x288fa1cf (4 bytes)
  //    }
  //    optlen: len = 0x4 (8 bytes)
  //  ]
  *(uint32_t*)0x200000000180 = 0x288fa1cf;
  syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/1,
          /*optname=SO_OOBINLINE*/ 0xa, /*optval=*/0x200000000180ul,
          /*optlen=*/4ul);
  //  writev arguments: [
  //    fd: fd (resource)
  //    vec: nil
  //    vlen: len = 0x0 (8 bytes)
  //  ]
  syscall(__NR_writev, /*fd=*/r[0], /*vec=*/0ul, /*vlen=*/0ul);
  //  setsockopt$inet6_tcp_TLS_TX arguments: [
  //    fd: sock_tcp6 (resource)
  //    level: const = 0x11a (4 bytes)
  //    optname: const = 0x2 (4 bytes)
  //    optval: nil
  //    optlen: len = 0x0 (8 bytes)
  //  ]
  syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x11a, /*optname=*/2,
          /*optval=*/0ul, /*optlen=*/0ul);
  //  readv arguments: [
  //    fd: fd (resource)
  //    vec: ptr[in, array[iovec[out, array[int8]]]] {
  //      array[iovec[out, array[int8]]] {
  //        iovec[out, array[int8]] {
  //          addr: ptr[out, buffer] {
  //            buffer: (DirOut)
  //          }
  //          len: len = 0xff1 (8 bytes)
  //        }
  //      }
  //    }
  //    vlen: len = 0x1 (8 bytes)
  //  ]
  *(uint64_t*)0x200000000e40 = 0x200000000f40;
  *(uint64_t*)0x200000000e48 = 0xff1;
  syscall(__NR_readv, /*fd=*/r[0], /*vec=*/0x200000000e40ul, /*vlen=*/1ul);
}
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;
}