// https://syzkaller.appspot.com/bug?id=184947ce3656029b9acb9affb80583b4c4f36121
// 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>

uint64_t r[1] = {0xffffffffffffffff};

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;
  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 64 65 62 75 67 00} (length 0x8)
  //    }
  //    mode: open_mode = 0xaf (8 bytes)
  //  ]
  memcpy((void*)0x200000000240, "./debug\000", 8);
  syscall(__NR_mkdirat, /*fd=*/0xffffff9c, /*path=*/0x200000000240ul,
          /*mode=S_IXOTH|S_IWOTH|S_IROTH|S_IXGRP|S_IRGRP|S_IWUSR*/ 0xaful);
  //  mount arguments: [
  //    src: nil
  //    dst: ptr[in, buffer] {
  //      buffer: {2e 2f 64 65 62 75 67 00} (length 0x8)
  //    }
  //    type: ptr[in, buffer] {
  //      buffer: {64 65 62 75 67 66 73 00} (length 0x8)
  //    }
  //    flags: mount_flags = 0x0 (8 bytes)
  //    data: nil
  //  ]
  memcpy((void*)0x200000000200, "./debug\000", 8);
  memcpy((void*)0x200000000300, "debugfs\000", 8);
  syscall(__NR_mount, /*src=*/0ul, /*dst=*/0x200000000200ul,
          /*type=*/0x200000000300ul, /*flags=*/0ul, /*data=*/0ul);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 64 65 62 75 67 2f 73 70 6c 69 74 5f 68 75 67 65 5f 70
  //      61 67 65 73 00} (length 0x19)
  //    }
  //    flags: open_flags = 0x1 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000400, "./debug/split_huge_pages\000", 25);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000400ul,
                /*flags=O_WRONLY*/ 1, /*mode=*/0);
  if (res != -1)
    r[0] = res;
  //  write arguments: [
  //    fd: fd (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {2f 23 30 72 37} (length 0x5)
  //    }
  //    count: len = 0x5 (8 bytes)
  //  ]
  memcpy((void*)0x200000000600, "/#0r7", 5);
  syscall(__NR_write, /*fd=*/r[0], /*buf=*/0x200000000600ul, /*count=*/5ul);
  return 0;
}