// https://syzkaller.appspot.com/bug?id=9a35237248205818ef1a97f3ccf7648863bfe845
// 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>

#ifndef __NR_futex
#define __NR_futex 98
#endif
#ifndef __NR_mkdirat
#define __NR_mkdirat 34
#endif
#ifndef __NR_mmap
#define __NR_mmap 222
#endif
#ifndef __NR_mount
#define __NR_mount 40
#endif
#ifndef __NR_openat
#define __NR_openat 56
#endif

uint64_t r[1] = {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)) {
  }
  //  mkdirat arguments: [
  //    fd: fd_dir (resource)
  //    path: ptr[in, buffer] {
  //      buffer: {2e 2f 6d 79 73 79 73 00} (length 0x8)
  //    }
  //    mode: open_mode = 0x1 (8 bytes)
  //  ]
  memcpy((void*)0x20000040, "./mysys\000", 8);
  syscall(__NR_mkdirat, /*fd=*/0xffffff9c, /*path=*/0x20000040ul,
          /*mode=S_IXOTH*/ 1ul);
  //  mount arguments: [
  //    src: nil
  //    dst: ptr[in, buffer] {
  //      buffer: {2e 2f 6d 79 73 79 73 00} (length 0x8)
  //    }
  //    type: ptr[in, buffer] {
  //      buffer: {73 79 73 66 73 00} (length 0x6)
  //    }
  //    flags: mount_flags = 0x0 (8 bytes)
  //    data: nil
  //  ]
  memcpy((void*)0x20000100, "./mysys\000", 8);
  memcpy((void*)0x20000200, "sysfs\000", 6);
  syscall(__NR_mount, /*src=*/0ul, /*dst=*/0x20000100ul, /*type=*/0x20000200ul,
          /*flags=*/0ul, /*data=*/0ul);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 6d 79 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 32 2e 30 2f 72 65 73 6f 75 72
  //      63 65 30 00} (length 0x2f)
  //    }
  //    flags: open_flags = 0x2 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x20000300,
         "./mysys/bus/pci/devices/0000:00:02.0/resource0\000", 47);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000300ul,
                /*flags=O_RDWR*/ 2, /*mode=*/0);
  if (res != -1)
    r[0] = res;
  //  mmap arguments: [
  //    addr: nil
  //    len: len = 0x1012 (4 bytes)
  //    prot: mmap_prot = 0x3 (8 bytes)
  //    flags: mmap_flags = 0x11 (8 bytes)
  //    fd: fd (resource)
  //    offset: intptr = 0x0 (8 bytes)
  //  ]
  syscall(__NR_mmap, /*addr=*/0ul, /*len=*/0x1012,
          /*prot=PROT_WRITE|PROT_READ*/ 3ul,
          /*flags=MAP_FIXED|MAP_SHARED*/ 0x11ul, /*fd=*/r[0], /*offset=*/0ul);
  //  futex arguments: [
  //    addr: nil
  //    op: futex_op = 0x85 (8 bytes)
  //    val: int32 = 0x0 (4 bytes)
  //    timeout: nil
  //    addr2: nil
  //    val3: int32 = 0xa0090199 (4 bytes)
  //  ]
  syscall(__NR_futex, /*addr=*/0ul,
          /*op=FUTEX_PRIVATE_FLAG|FUTEX_WAKE_OP*/ 0x85ul, /*val=*/0,
          /*timeout=*/0ul, /*addr2=*/0ul, /*val3=*/0xa0090199);
  return 0;
}