// https://syzkaller.appspot.com/bug?id=710faae7221dcd1a7102f41b32d2a310d1233c04
// 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[2] = {0xffffffffffffffff, 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)) {
  }
  //  openat$fb1 arguments: [
  //    fd: const = 0xffffffffffffff9c (8 bytes)
  //    file: ptr[in, buffer] {
  //      buffer: {2f 64 65 76 2f 66 62 31 00} (length 0x9)
  //    }
  //    flags: open_flags = 0x8000 (4 bytes)
  //    mode: const = 0x0 (2 bytes)
  //  ]
  //  returns fd_fb
  memcpy((void*)0x200000000000, "/dev/fb1\000", 9);
  syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000000ul,
          /*flags=O_LARGEFILE*/ 0x8000, /*mode=*/0);
  //  mkdir arguments: [
  //    path: ptr[in, buffer] {
  //      buffer: {2e 2f 6d 79 5f 73 79 73 00} (length 0x9)
  //    }
  //    mode: open_mode = 0x1ff (8 bytes)
  //  ]
  memcpy((void*)0x200000000400, "./my_sys\000", 9);
  syscall(
      __NR_mkdir, /*path=*/0x200000000400ul,
      /*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 6d 79 5f 73 79 73 00} (length 0x9)
  //    }
  //    type: ptr[in, buffer] {
  //      buffer: {73 79 73 66 73 00} (length 0x6)
  //    }
  //    flags: mount_flags = 0x0 (8 bytes)
  //    data: nil
  //  ]
  memcpy((void*)0x200000000100, "./my_sys\000", 9);
  memcpy((void*)0x200000000200, "sysfs\000", 6);
  syscall(__NR_mount, /*src=*/0ul, /*dst=*/0x200000000100ul,
          /*type=*/0x200000000200ul, /*flags=*/0ul, /*data=*/0ul);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 6d 79 5f 73 79 73 2f 62 75 73 2f 70 63 69 2f 64 65 76
  //      69 63 65 73 2f 30 30 30 30 3a 30 30 3a 30 31 2e 30 2f 72 65 6d 6f 76
  //      65 00} (length 0x2d)
  //    }
  //    flags: open_flags = 0x1 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000700,
         "./my_sys/bus/pci/devices/0000:00:01.0/remove\000", 45);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000700ul,
                /*flags=O_WRONLY*/ 1, /*mode=*/0);
  if (res != -1)
    r[0] = res;
  //  write arguments: [
  //    fd: fd (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {31} (length 0x1)
  //    }
  //    count: len = 0x1 (8 bytes)
  //  ]
  memset((void*)0x200000000800, 49, 1);
  syscall(__NR_write, /*fd=*/r[0], /*buf=*/0x200000000800ul, /*count=*/1ul);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 6d 79 5f 73 79 73 2f 62 75 73 2f 70 63 69 2f 72 65 73
  //      63 61 6e 00} (length 0x18)
  //    }
  //    flags: open_flags = 0x1 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000900, "./my_sys/bus/pci/rescan\000", 24);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000900ul,
                /*flags=O_WRONLY*/ 1, /*mode=*/0);
  if (res != -1)
    r[1] = res;
  //  write arguments: [
  //    fd: fd (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {31} (length 0x1)
  //    }
  //    count: len = 0x1 (8 bytes)
  //  ]
  memset((void*)0x200000000a00, 49, 1);
  syscall(__NR_write, /*fd=*/r[1], /*buf=*/0x200000000a00ul, /*count=*/1ul);
  return 0;
}