// https://syzkaller.appspot.com/bug?id=e2267d87b55b8e3861db918ee870746691d88137
// 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>

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;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  add_key$user arguments: [
  //    type: ptr[in, buffer] {
  //      buffer: {75 73 65 72 00} (length 0x5)
  //    }
  //    desc: ptr[in, key_desc] {
  //      key_desc {
  //        prefix: buffer: {73 79 7a} (length 0x3)
  //        id: proc = 0xffffffffffffffff (1 bytes)
  //        z: const = 0x0 (1 bytes)
  //      }
  //    }
  //    payload: ptr[in, buffer] {
  //      buffer: {e2} (length 0x1)
  //    }
  //    paylen: len = 0x1 (8 bytes)
  //    keyring: keyring (resource)
  //  ]
  //  returns user_key
  memcpy((void*)0x200000000200, "user\000", 5);
  memcpy((void*)0x200000000100, "syz", 3);
  *(uint8_t*)0x200000000103 = 0;
  *(uint8_t*)0x200000000104 = 0;
  memset((void*)0x2000000001c0, 226, 1);
  syscall(__NR_add_key, /*type=*/0x200000000200ul, /*desc=*/0x200000000100ul,
          /*payload=*/0x2000000001c0ul, /*paylen=*/1ul, /*keyring=*/0xfffffffd);
  //  mkdirat arguments: [
  //    fd: fd_dir (resource)
  //    path: ptr[in, buffer] {
  //      buffer: {2e 2f 6d 6e 74 00} (length 0x6)
  //    }
  //    mode: open_mode = 0x1ff (8 bytes)
  //  ]
  memcpy((void*)0x200000000440, "./mnt\000", 6);
  syscall(
      __NR_mkdirat, /*fd=*/0xffffff9c, /*path=*/0x200000000440ul,
      /*mode=S_IXOTH|S_IWOTH|S_IROTH|S_IXGRP|S_IWGRP|S_IRGRP|S_IXUSR|S_IWUSR|0x100*/
      0x1fful);
  //  mount arguments: [
  //    src: ptr[in, blockdev_filename] {
  //      union blockdev_filename {
  //        filename: buffer: {00} (length 0x1)
  //      }
  //    }
  //    dst: ptr[in, buffer] {
  //      buffer: {2e 2f 6d 6e 74 00} (length 0x6)
  //    }
  //    type: ptr[in, buffer] {
  //      buffer: {65 63 72 79 70 74 66 73 00} (length 0x9)
  //    }
  //    flags: mount_flags = 0x0 (8 bytes)
  //    data: ptr[in, buffer] {
  //      buffer: {65 63 72 79 70 74 66 73 5f 73 69 67 3d 73 79 7a 2c 65 63 72
  //      79 70 74 66 73 5f 66 6e 65 6b 5f 73 69 67 3d 73 79 7a 2c 65 63 72 79
  //      70 74 66 73 5f 63 69 70 68 65 72 3d 61 65 73 2c 65 63 72 79 70 74 66
  //      73 5f 6b 65 79 5f 62 79 74 65 73 3d 31 36 00} (length 0x51)
  //    }
  //  ]
  memset((void*)0x200000000400, 0, 1);
  memcpy((void*)0x200000000000, "./mnt\000", 6);
  memcpy((void*)0x200000000480, "ecryptfs\000", 9);
  memcpy((void*)0x200000000500,
         "ecryptfs_sig=syz,ecryptfs_fnek_sig=syz,ecryptfs_cipher=aes,ecryptfs_"
         "key_bytes=16\000",
         81);
  syscall(__NR_mount, /*src=*/0x200000000400ul, /*dst=*/0x200000000000ul,
          /*type=*/0x200000000480ul, /*flags=*/0ul, /*data=*/0x200000000500ul);
  return 0;
}