// https://syzkaller.appspot.com/bug?id=121015dd8a362b292ca89d5f5ffbc9cfe184e684
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mount.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

#ifndef __NR_ioctl
#define __NR_ioctl 54
#endif
#ifndef __NR_mkdirat
#define __NR_mkdirat 296
#endif
#ifndef __NR_mmap
#define __NR_mmap 192
#endif
#ifndef __NR_mount
#define __NR_mount 21
#endif
#ifndef __NR_openat
#define __NR_openat 295
#endif
#ifndef __NR_write
#define __NR_write 4
#endif
#undef __NR_mmap
#define __NR_mmap __NR_mmap2

uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x7ffff000, /*len=*/0x1000, /*prot=*/0,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32,
          /*fd=*/(intptr_t)-1, /*offset=*/0);
  syscall(__NR_mmap, /*addr=*/0x80000000, /*len=*/0x1000000,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32,
          /*fd=*/(intptr_t)-1, /*offset=*/0);
  syscall(__NR_mmap, /*addr=*/0x81000000, /*len=*/0x1000, /*prot=*/0,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32,
          /*fd=*/(intptr_t)-1, /*offset=*/0);
  const char* reason;
  (void)reason;
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  mkdirat arguments: [
  //    fd: fd_dir (resource)
  //    path: ptr[in, buffer] {
  //      buffer: {2e 2f 73 79 73 00} (length 0x6)
  //    }
  //    mode: open_mode = 0x1ff (4 bytes)
  //  ]
  memcpy((void*)0x80000000, "./sys\000", 6);
  syscall(
      __NR_mkdirat, /*fd=*/0xffffff9c, /*path=*/0x80000000,
      /*mode=S_IXOTH|S_IWOTH|S_IROTH|S_IXGRP|S_IWGRP|S_IRGRP|S_IXUSR|S_IWUSR|0x100*/
      0x1ff);
  //  mount arguments: [
  //    src: nil
  //    dst: ptr[in, buffer] {
  //      buffer: {2e 2f 73 79 73 00} (length 0x6)
  //    }
  //    type: ptr[in, buffer] {
  //      buffer: {73 79 73 66 73 00} (length 0x6)
  //    }
  //    flags: mount_flags = 0x0 (4 bytes)
  //    data: nil
  //  ]
  memcpy((void*)0x80000080, "./sys\000", 6);
  memcpy((void*)0x800000c0, "sysfs\000", 6);
  syscall(__NR_mount, /*src=*/0, /*dst=*/0x80000080, /*type=*/0x800000c0,
          /*flags=*/0, /*data=*/0);
  //  mkdirat arguments: [
  //    fd: fd_dir (resource)
  //    path: ptr[in, buffer] {
  //      buffer: {2e 2f 64 65 76 00} (length 0x6)
  //    }
  //    mode: open_mode = 0x1ff (4 bytes)
  //  ]
  memcpy((void*)0x80000100, "./dev\000", 6);
  syscall(
      __NR_mkdirat, /*fd=*/0xffffff9c, /*path=*/0x80000100,
      /*mode=S_IXOTH|S_IWOTH|S_IROTH|S_IXGRP|S_IWGRP|S_IRGRP|S_IXUSR|S_IWUSR|0x100*/
      0x1ff);
  //  mount arguments: [
  //    src: nil
  //    dst: ptr[in, buffer] {
  //      buffer: {2e 2f 64 65 76 00} (length 0x6)
  //    }
  //    type: ptr[in, buffer] {
  //      buffer: {64 65 76 74 6d 70 66 73 00} (length 0x9)
  //    }
  //    flags: mount_flags = 0x0 (4 bytes)
  //    data: nil
  //  ]
  memcpy((void*)0x80000180, "./dev\000", 6);
  memcpy((void*)0x800001c0, "devtmpfs\000", 9);
  syscall(__NR_mount, /*src=*/0, /*dst=*/0x80000180, /*type=*/0x800001c0,
          /*flags=*/0, /*data=*/0);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 73 79 73 2f 6d 6f 64 75 6c 65 2f 6d 64 5f 6d 6f 64 2f
  //      70 61 72 61 6d 65 74 65 72 73 2f 6e 65 77 5f 61 72 72 61 79 00}
  //      (length 0x29)
  //    }
  //    flags: open_flags = 0x1 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x80000200, "./sys/module/md_mod/parameters/new_array\000", 41);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x80000200,
                /*flags=O_WRONLY*/ 1, /*mode=*/0);
  if (res != -1)
    r[0] = res;
  //  write arguments: [
  //    fd: fd (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {6d 64 30} (length 0x3)
  //    }
  //    count: len = 0x3 (4 bytes)
  //  ]
  memcpy((void*)0x80000240, "md0", 3);
  syscall(__NR_write, /*fd=*/(intptr_t)r[0], /*buf=*/0x80000240, /*count=*/3);
  //  mount$fuse arguments: [
  //    src: const = 0x0 (4 bytes)
  //    dst: nil
  //    type: nil
  //    flags: mount_flags = 0x0 (4 bytes)
  //    opts: ptr[in, fuse_options] {
  //      fuse_options {
  //        fd: fs_opt["fd", fmt[hex, fd_fuse]] {
  //          name: buffer: {66 64} (length 0x2)
  //          eq: const = 0x3d (1 bytes)
  //          val: fd_fuse (resource)
  //        }
  //        comma0: const = 0x2c (1 bytes)
  //        rootmode: fs_opt["rootmode", fmt[oct, flags[fuse_mode]]] {
  //          name: buffer: {72 6f 6f 74 6d 6f 64 65} (length 0x8)
  //          eq: const = 0x3d (1 bytes)
  //          val: fuse_mode = 0x8000 (23 bytes)
  //        }
  //        comma1: const = 0x2c (1 bytes)
  //        user_id: fs_opt["user_id", fmt[dec, uid]] {
  //          name: buffer: {75 73 65 72 5f 69 64} (length 0x7)
  //          eq: const = 0x3d (1 bytes)
  //          val: uid (resource)
  //        }
  //        comma2: const = 0x2c (1 bytes)
  //        group_id: fs_opt["group_id", fmt[dec, gid]] {
  //          name: buffer: {67 72 6f 75 70 5f 69 64} (length 0x8)
  //          eq: const = 0x3d (1 bytes)
  //          val: gid (resource)
  //        }
  //        comma3: const = 0x2c (1 bytes)
  //        opts: fs_options[fuse_opts] {
  //          elems: array[fs_opt_elem[fuse_opts]] {
  //          }
  //          common: array[fs_opt_elem[fs_options_common]] {
  //          }
  //          null: const = 0x0 (1 bytes)
  //        }
  //      }
  //    }
  //  ]
  memcpy((void*)0x80000300, "fd", 2);
  *(uint8_t*)0x80000302 = 0x3d;
  sprintf((char*)0x80000303, "0x%016llx", (long long)-1);
  *(uint8_t*)0x80000315 = 0x2c;
  memcpy((void*)0x80000316, "rootmode", 8);
  *(uint8_t*)0x8000031e = 0x3d;
  sprintf((char*)0x8000031f, "%023llo", (long long)0x8000);
  *(uint8_t*)0x80000336 = 0x2c;
  memcpy((void*)0x80000337, "user_id", 7);
  *(uint8_t*)0x8000033e = 0x3d;
  sprintf((char*)0x8000033f, "%020llu", (long long)0);
  *(uint8_t*)0x80000353 = 0x2c;
  memcpy((void*)0x80000354, "group_id", 8);
  *(uint8_t*)0x8000035c = 0x3d;
  sprintf((char*)0x8000035d, "%020llu", (long long)0);
  *(uint8_t*)0x80000371 = 0x2c;
  *(uint8_t*)0x80000372 = 0;
  syscall(__NR_mount, /*src=*/0, /*dst=*/0, /*type=*/0, /*flags=*/0,
          /*opts=*/0x80000300);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 64 65 76 2f 6d 64 30 00} (length 0xa)
  //    }
  //    flags: open_flags = 0x4002 (4 bytes)
  //    mode: open_mode = 0x22 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x80000280, "./dev/md0\000", 10);
  res =
      syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x80000280,
              /*flags=O_DIRECT|O_RDWR*/ 0x4002, /*mode=S_IWOTH|S_IRGRP*/ 0x22);
  if (res != -1)
    r[1] = res;
  //  ioctl arguments: [
  //    fd: fd (resource)
  //    cmd: int32 = 0x40480923 (4 bytes)
  //    arg: ptr[in, buffer] {
  //      buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00
  //      00 04 00 00 02 00 00 00 02} (length 0x1d)
  //    }
  //  ]
  memcpy((void*)0x80000300,
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01"
         "\x00\x00\x00\x00\x04\x00\x00\x02\x00\x00\x00\x02",
         29);
  syscall(__NR_ioctl, /*fd=*/(intptr_t)r[1], /*cmd=*/0x40480923,
          /*arg=*/0x80000300);
  //  ioctl arguments: [
  //    fd: fd (resource)
  //    cmd: int32 = 0x40140921 (4 bytes)
  //    arg: ptr[in, buffer] {
  //      buffer: {00 00 00 00 01} (length 0x5)
  //    }
  //  ]
  memcpy((void*)0x80000400, "\x00\x00\x00\x00\x01", 5);
  syscall(__NR_ioctl, /*fd=*/(intptr_t)r[1], /*cmd=*/0x40140921,
          /*arg=*/0x80000400);
  //  ioctl arguments: [
  //    fd: fd (resource)
  //    cmd: int32 = 0x400c0930 (4 bytes)
  //    arg: nil
  //  ]
  syscall(__NR_ioctl, /*fd=*/(intptr_t)r[1], /*cmd=*/0x400c0930, /*arg=*/0);
  return 0;
}