// https://syzkaller.appspot.com/bug?id=b2a2181447f3f46d51ae0c8e14bdf3abcfbc6709
// 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/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

#ifndef __NR_bpf
#define __NR_bpf 321
#endif

static long syz_open_procfs(volatile long a0, volatile long a1)
{
  char buf[128];
  memset(buf, 0, sizeof(buf));
  if (a0 == 0) {
    snprintf(buf, sizeof(buf), "/proc/self/%s", (char*)a1);
  } else if (a0 == -1) {
    snprintf(buf, sizeof(buf), "/proc/thread-self/%s", (char*)a1);
  } else {
    snprintf(buf, sizeof(buf), "/proc/self/task/%d/%s", (int)a0, (char*)a1);
  }
  int fd = open(buf, O_RDWR);
  if (fd == -1)
    fd = open(buf, O_RDONLY);
  return fd;
}

uint64_t r[1] = {0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul,
          /*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=*/0x1000ul, /*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)) {
  }
  *(uint32_t*)0x2000000000c0 = 0;
  *(uint32_t*)0x2000000000c4 = 0xb;
  *(uint64_t*)0x2000000000c8 = 0x200000000180;
  memcpy((void*)0x200000000180,
         "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x18"
         "\x01\x00\x00\x20\x00\x00\x00\x00\x00\x00\x00\x00\x20\x20\x20\x7b\x1a"
         "\xf8\xff\x00\x00\x00\x00\xbf\xa1\x00\x00\x00\x00\x00\x00\x07\x01\x00"
         "\x00\xf8\xff\xff\xff\xb7\x02\x00\x00\x00\x00\x00\x00\xb7\x03\x00\x00"
         "\xde\xab\x44\xf4\x85\x00\x00\x00\x2d\x00\x00\x00\x95",
         81);
  *(uint64_t*)0x2000000000d0 = 0;
  *(uint32_t*)0x2000000000d8 = 0;
  *(uint32_t*)0x2000000000dc = 0;
  *(uint64_t*)0x2000000000e0 = 0;
  *(uint32_t*)0x2000000000e8 = 0;
  *(uint32_t*)0x2000000000ec = 0;
  memset((void*)0x2000000000f0, 0, 16);
  *(uint32_t*)0x200000000100 = 0;
  *(uint32_t*)0x200000000104 = 0;
  *(uint32_t*)0x200000000108 = 0;
  *(uint32_t*)0x20000000010c = 0;
  *(uint64_t*)0x200000000110 = 0;
  *(uint32_t*)0x200000000118 = 0;
  *(uint32_t*)0x20000000011c = 0;
  *(uint64_t*)0x200000000120 = 0;
  *(uint32_t*)0x200000000128 = 0;
  *(uint32_t*)0x20000000012c = 0;
  *(uint32_t*)0x200000000130 = 0;
  *(uint32_t*)0x200000000134 = 0;
  *(uint64_t*)0x200000000138 = 0;
  *(uint64_t*)0x200000000140 = 0;
  *(uint32_t*)0x200000000148 = 0;
  *(uint32_t*)0x20000000014c = 0;
  *(uint32_t*)0x200000000150 = 0;
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x2000000000c0ul, /*size=*/0x90ul);
  *(uint32_t*)0x2000000000c0 = 0x11;
  *(uint32_t*)0x2000000000c4 = 0xb;
  *(uint64_t*)0x2000000000c8 = 0x200000000180;
  *(uint64_t*)0x2000000000d0 = 0x200000000040;
  memcpy((void*)0x200000000040, "GPL\000", 4);
  *(uint32_t*)0x2000000000d8 = 0;
  *(uint32_t*)0x2000000000dc = 0;
  *(uint64_t*)0x2000000000e0 = 0;
  *(uint32_t*)0x2000000000e8 = 0;
  *(uint32_t*)0x2000000000ec = 0;
  memset((void*)0x2000000000f0, 0, 16);
  *(uint32_t*)0x200000000100 = 0;
  *(uint32_t*)0x200000000104 = 0;
  *(uint32_t*)0x200000000108 = 0;
  *(uint32_t*)0x20000000010c = 0;
  *(uint64_t*)0x200000000110 = 0;
  *(uint32_t*)0x200000000118 = 0;
  *(uint32_t*)0x20000000011c = 0;
  *(uint64_t*)0x200000000120 = 0;
  *(uint32_t*)0x200000000128 = 0;
  *(uint32_t*)0x20000000012c = 0;
  *(uint32_t*)0x200000000130 = 0;
  *(uint32_t*)0x200000000134 = 0;
  *(uint64_t*)0x200000000138 = 0;
  *(uint64_t*)0x200000000140 = 0;
  *(uint32_t*)0x200000000148 = 0;
  *(uint32_t*)0x20000000014c = 0;
  *(uint32_t*)0x200000000150 = 0;
  res =
      syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x2000000000c0ul, /*size=*/0x90ul);
  if (res != -1)
    r[0] = res;
  *(uint64_t*)0x2000000002c0 = 0x200000000300;
  memcpy((void*)0x200000000300, "kmem_cache_free\000", 16);
  *(uint32_t*)0x2000000002c8 = r[0];
  *(uint32_t*)0x2000000002cc = 0;
  *(uint64_t*)0x2000000002d0 = 0;
  syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0x2000000002c0ul, /*size=*/0x10ul);
  memcpy((void*)0x200000000600, "fd/4\000", 5);
  syz_open_procfs(/*pid=*/0, /*file=*/0x200000000600);
  return 0;
}