syzkaller-repros/linux/bec00f7157ae25598e007a732156065c1fbaa485.c

// KASAN: slab-out-of-bounds Read in bpf_prog_create
// https://syzkaller.appspot.com/bug?id=bec00f7157ae25598e007a732156065c1fbaa485
// status:open
// 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/syscall.h>
#include <sys/types.h>
#include <unistd.h>

uint64_t r[1] = {0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  intptr_t res = 0;
  memcpy((void*)0x20000000, "/dev/ppp\000", 9);
  res = syscall(__NR_openat, 0xffffffffffffff9c, 0x20000000, 0, 0);
  if (res != -1)
    r[0] = res;
  syscall(__NR_ioctl, r[0], 0xc004743e, 0x20000540);
  *(uint16_t*)0x200000c0 = 0x8200;
  *(uint64_t*)0x200000c8 = 0x20000080;
  *(uint16_t*)0x20000080 = 0;
  *(uint8_t*)0x20000082 = 0;
  *(uint8_t*)0x20000083 = 0;
  *(uint32_t*)0x20000084 = 0;
  syscall(__NR_ioctl, r[0], 0x40107447, 0x200000c0);
  return 0;
}