// https://syzkaller.appspot.com/bug?id=e858aa95d402c7e0be6a96d1eeddad4c25d42d22
// 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>

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[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 63 6f 6e 66 69 67 00} (length 0x9)
  //    }
  //    mode: open_mode = 0x1ff (8 bytes)
  //  ]
  memcpy((void*)0x200000000000, "./config\000", 9);
  syscall(
      __NR_mkdirat, /*fd=*/0xffffff9c, /*path=*/0x200000000000ul,
      /*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 63 6f 6e 66 69 67 00} (length 0x9)
  //    }
  //    type: ptr[in, buffer] {
  //      buffer: {63 6f 6e 66 69 67 66 73 00} (length 0x9)
  //    }
  //    flags: mount_flags = 0x0 (8 bytes)
  //    data: nil
  //  ]
  memcpy((void*)0x200000000000, "./config\000", 9);
  memcpy((void*)0x200000000040, "configfs\000", 9);
  syscall(__NR_mount, /*src=*/0ul, /*dst=*/0x200000000000ul,
          /*type=*/0x200000000040ul, /*flags=*/0ul, /*data=*/0ul);
  //  mkdirat arguments: [
  //    fd: fd_dir (resource)
  //    path: ptr[in, buffer] {
  //      buffer: {2e 2f 63 6f 6e 66 69 67 2f 75 73 62 5f 67 61 64 67 65 74 2f
  //      67 31 00} (length 0x17)
  //    }
  //    mode: open_mode = 0x1ff (8 bytes)
  //  ]
  memcpy((void*)0x200000000080, "./config/usb_gadget/g1\000", 23);
  syscall(
      __NR_mkdirat, /*fd=*/0xffffff9c, /*path=*/0x200000000080ul,
      /*mode=S_IXOTH|S_IWOTH|S_IROTH|S_IXGRP|S_IWGRP|S_IRGRP|S_IXUSR|S_IWUSR|0x100*/
      0x1fful);
  //  mkdirat arguments: [
  //    fd: fd_dir (resource)
  //    path: ptr[in, buffer] {
  //      buffer: {2e 2f 63 6f 6e 66 69 67 2f 75 73 62 5f 67 61 64 67 65 74 2f
  //      67 31 2f 63 6f 6e 66 69 67 73 2f 63 2e 31 00} (length 0x23)
  //    }
  //    mode: open_mode = 0x1ff (8 bytes)
  //  ]
  memcpy((void*)0x2000000004c0, "./config/usb_gadget/g1/configs/c.1\000", 35);
  syscall(
      __NR_mkdirat, /*fd=*/0xffffff9c, /*path=*/0x2000000004c0ul,
      /*mode=S_IXOTH|S_IWOTH|S_IROTH|S_IXGRP|S_IWGRP|S_IRGRP|S_IXUSR|S_IWUSR|0x100*/
      0x1fful);
  //  mkdirat arguments: [
  //    fd: fd_dir (resource)
  //    path: ptr[in, buffer] {
  //      buffer: {2e 2f 63 6f 6e 66 69 67 2f 75 73 62 5f 67 61 64 67 65 74 2f
  //      67 31 2f 66 75 6e 63 74 69 6f 6e 73 2f 68 69 64 2e 75 73 62 30 00}
  //      (length 0x2a)
  //    }
  //    mode: open_mode = 0x1ff (8 bytes)
  //  ]
  memcpy((void*)0x200000000640, "./config/usb_gadget/g1/functions/hid.usb0\000",
         42);
  syscall(
      __NR_mkdirat, /*fd=*/0xffffff9c, /*path=*/0x200000000640ul,
      /*mode=S_IXOTH|S_IWOTH|S_IROTH|S_IXGRP|S_IWGRP|S_IRGRP|S_IXUSR|S_IWUSR|0x100*/
      0x1fful);
  //  symlinkat arguments: [
  //    old: ptr[in, buffer] {
  //      buffer: {2e 2f 63 6f 6e 66 69 67 2f 75 73 62 5f 67 61 64 67 65 74 2f
  //      67 31 2f 66 75 6e 63 74 69 6f 6e 73 2f 68 69 64 2e 75 73 62 30 00}
  //      (length 0x2a)
  //    }
  //    newfd: fd_dir (resource)
  //    new: ptr[in, buffer] {
  //      buffer: {2e 2f 63 6f 6e 66 69 67 2f 75 73 62 5f 67 61 64 67 65 74 2f
  //      67 31 2f 63 6f 6e 66 69 67 73 2f 63 2e 31 2f 68 69 64 2e 75 73 62 30
  //      00} (length 0x2c)
  //    }
  //  ]
  memcpy((void*)0x200000000900, "./config/usb_gadget/g1/functions/hid.usb0\000",
         42);
  memcpy((void*)0x200000000980,
         "./config/usb_gadget/g1/configs/c.1/hid.usb0\000", 44);
  syscall(__NR_symlinkat, /*old=*/0x200000000900ul, /*newfd=*/0xffffff9c,
          /*new=*/0x200000000980ul);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 63 6f 6e 66 69 67 2f 75 73 62 5f 67 61 64 67 65 74 2f
  //      67 31 2f 55 44 43 00} (length 0x1b)
  //    }
  //    flags: open_flags = 0x1 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000a00, "./config/usb_gadget/g1/UDC\000", 27);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000a00ul,
                /*flags=O_WRONLY*/ 1, /*mode=*/0);
  if (res != -1)
    r[0] = res;
  //  write arguments: [
  //    fd: fd (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {64 75 6d 6d 79 5f 75 64 63 2e 30} (length 0xb)
  //    }
  //    count: len = 0xb (8 bytes)
  //  ]
  memcpy((void*)0x200000000a40, "dummy_udc.0", 11);
  syscall(__NR_write, /*fd=*/r[0], /*buf=*/0x200000000a40ul, /*count=*/0xbul);
  //  syz_open_dev$hidraw arguments: [
  //    dev: nil
  //    id: intptr = 0x0 (8 bytes)
  //    flags: open_flags = 0x2 (8 bytes)
  //  ]
  //  returns fd_hidraw
  syz_open_dev(/*dev=*/0, /*id=*/0, /*flags=O_RDWR*/ 2);
  //  mount arguments: [
  //    src: nil
  //    dst: nil
  //    type: nil
  //    flags: mount_flags = 0x0 (8 bytes)
  //    data: nil
  //  ]
  syscall(__NR_mount, /*src=*/0ul, /*dst=*/0ul, /*type=*/0ul, /*flags=*/0ul,
          /*data=*/0ul);
  return 0;
}