// https://syzkaller.appspot.com/bug?id=c3126dbab07dd223a4aae36f1255f8aaff559eca
// 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_mkdirat
#define __NR_mkdirat 34
#endif
#ifndef __NR_mmap
#define __NR_mmap 222
#endif
#ifndef __NR_mount
#define __NR_mount 40
#endif
#ifndef __NR_openat
#define __NR_openat 56
#endif
#ifndef __NR_write
#define __NR_write 64
#endif

uint64_t r[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*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=*/0x21000000ul, /*len=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  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 (8 bytes)
  //  ]
  memcpy((void*)0x20000040, "./sys\000", 6);
  syscall(
      __NR_mkdirat, /*fd=*/0xffffff9c, /*path=*/0x20000040ul,
      /*mode=S_IXOTH|S_IWOTH|S_IROTH|S_IXGRP|S_IWGRP|S_IRGRP|S_IXUSR|S_IWUSR|0x100*/
      0x1fful);
  //  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 (8 bytes)
  //    data: nil
  //  ]
  memcpy((void*)0x20000080, "./sys\000", 6);
  memcpy((void*)0x200000c0, "sysfs\000", 6);
  syscall(__NR_mount, /*src=*/0ul, /*dst=*/0x20000080ul, /*type=*/0x200000c0ul,
          /*flags=*/0ul, /*data=*/0ul);
  //  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*)0x20000100, "./sys/module/md_mod/parameters/new_array\000", 41);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000100ul,
                /*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 (8 bytes)
  //  ]
  memcpy((void*)0x20000140, "md0", 3);
  syscall(__NR_write, /*fd=*/r[0], /*buf=*/0x20000140ul, /*count=*/3ul);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 73 79 73 2f 62 6c 6f 63 6b 2f 6d 64 30 2f 6d 64 2f 6e
  //      65 77 5f 64 65 76 00} (length 0x1b)
  //    }
  //    flags: open_flags = 0x1 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x20000280, "./sys/block/md0/md/new_dev\000", 27);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000280ul,
                /*flags=O_WRONLY*/ 1, /*mode=*/0);
  if (res != -1)
    r[1] = res;
  //  write arguments: [
  //    fd: fd (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {31 3a 30 0a} (length 0x4)
  //    }
  //    count: len = 0x4 (8 bytes)
  //  ]
  memcpy((void*)0x200002c0, "1:0\n", 4);
  syscall(__NR_write, /*fd=*/r[1], /*buf=*/0x200002c0ul, /*count=*/4ul);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 73 79 73 2f 62 6c 6f 63 6b 2f 6d 64 30 2f 6d 64 2f 64
  //      65 76 2d 72 61 6d 30 2f 73 74 61 74 65 00} (length 0x22)
  //    }
  //    flags: open_flags = 0x1 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x20000480, "./sys/block/md0/md/dev-ram0/state\000", 34);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000480ul,
                /*flags=O_WRONLY*/ 1, /*mode=*/0);
  if (res != -1)
    r[2] = res;
  //  write arguments: [
  //    fd: fd (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {77 72 69 74 65 6d 6f 73 74 6c 79 0a} (length 0xc)
  //    }
  //    count: len = 0xc (8 bytes)
  //  ]
  memcpy((void*)0x200004c0, "writemostly\n", 12);
  syscall(__NR_write, /*fd=*/r[2], /*buf=*/0x200004c0ul, /*count=*/0xcul);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 73 79 73 2f 62 6c 6f 63 6b 2f 6d 64 30 2f 6d 64 2f 62
  //      69 74 6d 61 70 2f 62 61 63 6b 6c 6f 67 00} (length 0x22)
  //    }
  //    flags: open_flags = 0x1 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x20000680, "./sys/block/md0/md/bitmap/backlog\000", 34);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000680ul,
                /*flags=O_WRONLY*/ 1, /*mode=*/0);
  if (res != -1)
    r[3] = res;
  //  write arguments: [
  //    fd: fd (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {31 30 32 34} (length 0x4)
  //    }
  //    count: len = 0x4 (8 bytes)
  //  ]
  memcpy((void*)0x200006c0, "1024", 4);
  syscall(__NR_write, /*fd=*/r[3], /*buf=*/0x200006c0ul, /*count=*/4ul);
  return 0;
}