// https://syzkaller.appspot.com/bug?id=5a34035b13d7f4215357b46093ca6d5c45c93f93
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

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

#ifndef __NR_ioctl
#define __NR_ioctl 29
#endif
#ifndef __NR_mmap
#define __NR_mmap 222
#endif
#ifndef __NR_openat
#define __NR_openat 56
#endif

static long syz_open_dev(volatile long a0, volatile long a1, volatile long a2)
{
  if (a0 == 0xc || a0 == 0xb) {
    char buf[128];
    sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1,
            (uint8_t)a2);
    return open(buf, O_RDWR, 0);
  } else {
    unsigned long nb = a1;
    char buf[1024];
    char* hash;
    strncpy(buf, (char*)a0, sizeof(buf) - 1);
    buf[sizeof(buf) - 1] = 0;
    while ((hash = strchr(buf, '#'))) {
      *hash = '0' + (char)(nb % 10);
      nb /= 10;
    }
    return open(buf, a2 & ~O_CREAT, 0);
  }
}

uint64_t r[3] = {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)) {
  }
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    flags: open_flags = 0x48840 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x20000000, "./file1\000", 8);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000000ul,
                /*flags=O_NONBLOCK|O_NOFOLLOW|O_NOATIME|O_CREAT*/ 0x48840,
                /*mode=*/0);
  if (res != -1)
    r[0] = res;
  //  syz_open_dev$loop arguments: [
  //    dev: ptr[in, buffer] {
  //      buffer: {2f 64 65 76 2f 6c 6f 6f 70 23 00} (length 0xb)
  //    }
  //    id: intptr = 0xffffffff7ffffffd (8 bytes)
  //    flags: open_flags = 0x1ea1e2 (8 bytes)
  //  ]
  //  returns fd_loop
  memcpy((void*)0x20000240, "/dev/loop#\000", 11);
  res = -1;
  res = syz_open_dev(
      /*dev=*/0x20000240, /*id=*/0xffffffff7ffffffd,
      /*flags=O_NOFOLLOW|O_NOCTTY|O_NOATIME|O_LARGEFILE|O_EXCL|0x182062*/
      0x1ea1e2);
  if (res != -1)
    r[1] = res;
  //  openat$sysfs arguments: [
  //    fd: const = 0xffffffffffffff9c (8 bytes)
  //    dir: ptr[in, buffer] {
  //      buffer: {2f 73 79 73 2f 6b 65 72 6e 65 6c 2f 6e 6f 74 65 73} (length
  //      0x11)
  //    }
  //    flags: open_flags = 0x103a00 (4 bytes)
  //    mode: open_mode = 0x150 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x20000040, "/sys/kernel/notes", 17);
  res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*dir=*/0x20000040ul,
                /*flags=O_TRUNC|O_SYNC|O_NONBLOCK|FASYNC*/ 0x103a00,
                /*mode=S_IWGRP|S_IXUSR|S_IRUSR*/ 0x150);
  if (res != -1)
    r[2] = res;
  //  ioctl$LOOP_CONFIGURE arguments: [
  //    fd: fd_loop (resource)
  //    cmd: const = 0x4c0a (4 bytes)
  //    arg: ptr[in, loop_config] {
  //      loop_config {
  //        fd: fd_loop (resource)
  //        block_size: int32 = 0x0 (4 bytes)
  //        info: loop_info64 {
  //          lo_device: const = 0x0 (8 bytes)
  //          lo_inode: const = 0x0 (8 bytes)
  //          lo_rdevice: const = 0x0 (8 bytes)
  //          lo_offset: int64 = 0x4 (8 bytes)
  //          lo_sizelimit: int64 = 0x20000003 (8 bytes)
  //          lo_number: const = 0x0 (4 bytes)
  //          lo_enc_type: lo_encrypt_type = 0x0 (4 bytes)
  //          lo_enc_key_size: int32 = 0xb (4 bytes)
  //          lo_flags: lo_flags = 0xc (4 bytes)
  //          lo_file_name: buffer: {fa f9 83 57 e5 a1 14 99 89 fc 8d be c3 bd
  //          02 b8 2a 12 8b ba d0 09 9c eb dc 25 f5 ab b5 34 46 4c 51 6b dd 8a
  //          0f 35 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //          00 00 00 00 00 00} (length 0x40) lo_crypt_name: buffer: {32 d8 cc
  //          26 f7 06 1a 74 df 2c fc 06 c8 9f 3d 9e 23 4b 30 c5 09 97 d3 be f4
  //          09 ff 21 76 ff 7b 55 cd 0a 5d 81 cd 4a 52 4b d3 ff e7 0c 7f 2a 04
  //          00 2f 7b 6a a5 4c c5 0a 1f ca ed 1e 15 08 37 48 00} (length 0x40)
  //          lo_enc_key: buffer: {71 52 37 64 1a 8c cf 16 2e 43 ac 61 f7 00 00
  //          00 00 00 9b 41 00 00 00 00 00 00 00 00 00 00 00 00} (length 0x20)
  //          lo_init: array[int64] {
  //            int64 = 0x9 (8 bytes)
  //            int64 = 0xa (8 bytes)
  //          }
  //        }
  //        reserved: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //        00 00} (length 0x40)
  //      }
  //    }
  //  ]
  *(uint32_t*)0x20001140 = r[0];
  *(uint32_t*)0x20001144 = 0;
  *(uint64_t*)0x20001148 = 0;
  *(uint64_t*)0x20001150 = 0;
  *(uint64_t*)0x20001158 = 0;
  *(uint64_t*)0x20001160 = 4;
  *(uint64_t*)0x20001168 = 0x20000003;
  *(uint32_t*)0x20001170 = 0;
  *(uint32_t*)0x20001174 = 0;
  *(uint32_t*)0x20001178 = 0xb;
  *(uint32_t*)0x2000117c = 0xc;
  memcpy((void*)0x20001180,
         "\xfa\xf9\x83\x57\xe5\xa1\x14\x99\x89\xfc\x8d\xbe\xc3\xbd\x02\xb8\x2a"
         "\x12\x8b\xba\xd0\x09\x9c\xeb\xdc\x25\xf5\xab\xb5\x34\x46\x4c\x51\x6b"
         "\xdd\x8a\x0f\x35\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
         64);
  memcpy((void*)0x200011c0,
         "\x32\xd8\xcc\x26\xf7\x06\x1a\x74\xdf\x2c\xfc\x06\xc8\x9f\x3d\x9e\x23"
         "\x4b\x30\xc5\x09\x97\xd3\xbe\xf4\x09\xff\x21\x76\xff\x7b\x55\xcd\x0a"
         "\x5d\x81\xcd\x4a\x52\x4b\xd3\xff\xe7\x0c\x7f\x2a\x04\x00\x2f\x7b\x6a"
         "\xa5\x4c\xc5\x0a\x1f\xca\xed\x1e\x15\x08\x37\x48\x00",
         64);
  memcpy((void*)0x20001200,
         "\x71\x52\x37\x64\x1a\x8c\xcf\x16\x2e\x43\xac\x61\xf7\x00\x00\x00\x00"
         "\x00\x9b\x41\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
         32);
  *(uint64_t*)0x20001220 = 9;
  *(uint64_t*)0x20001228 = 0xa;
  memset((void*)0x20001230, 0, 64);
  syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0x4c0a, /*arg=*/0x20001140ul);
  //  ioctl$LOOP_CHANGE_FD arguments: [
  //    fd: fd_loop (resource)
  //    cmd: const = 0x4c06 (4 bytes)
  //    arg: fd (resource)
  //  ]
  syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0x4c06, /*arg=*/r[2]);
  return 0;
}