syzkaller-repros/linux/a43fb907b41490a7bcc3118ec8928302f666a976.c

// KASAN: slab-out-of-bounds Read in bpf_clone_redirect
// https://syzkaller.appspot.com/bug?id=a43fb907b41490a7bcc3118ec8928302f666a976
// 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>

#ifndef __NR_bpf
#define __NR_bpf 321
#endif

uint64_t r[1] = {0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  long res = 0;
  *(uint32_t*)0x20000200 = 0xc;
  *(uint32_t*)0x20000204 = 0xe;
  *(uint64_t*)0x20000208 = 0x20000380;
  memcpy((void*)0x20000380,
         "\xb7\x02\x00\x00\x03\x00\x00\x00\xbf\xa3\x00\x00\x00\x00\x00\x00\x07"
         "\x01\x00\x00\x80\xfe\xff\xff\x7a\x0a\xf0\xff\xf8\xff\xff\xff\x79\xa4"
         "\xf0\xff\x00\x00\x00\x00\xb7\x06\x00\x00\xff\xff\xff\xff\x2d\x64\x05"
         "\x00\x00\x00\x00\x00\x65\x04\x04\x00\x01\x00\x00\x00\x04\x04\x00\x00"
         "\x01\x00\x7d\x60\xb7\x03\x00\x00\x00\x00\x00\x00\x6a\x0a\x00\xfe\x00"
         "\x00\x00\x00\x85\x00\x00\x00\x0d\x00\x00\x00\xb7\x00\x00\x00\x00\x00"
         "\x00\x00\x95\x00\x00\x00\x00\x00\x00\x00",
         112);
  *(uint64_t*)0x20000210 = 0x20000340;
  memcpy((void*)0x20000340, "syzkaller", 10);
  *(uint32_t*)0x20000218 = 0;
  *(uint32_t*)0x2000021c = 0;
  *(uint64_t*)0x20000220 = 0;
  *(uint32_t*)0x20000228 = 0;
  *(uint32_t*)0x2000022c = 0;
  *(uint8_t*)0x20000230 = 0;
  *(uint8_t*)0x20000231 = 0;
  *(uint8_t*)0x20000232 = 0;
  *(uint8_t*)0x20000233 = 0;
  *(uint8_t*)0x20000234 = 0;
  *(uint8_t*)0x20000235 = 0;
  *(uint8_t*)0x20000236 = 0;
  *(uint8_t*)0x20000237 = 0;
  *(uint8_t*)0x20000238 = 0;
  *(uint8_t*)0x20000239 = 0;
  *(uint8_t*)0x2000023a = 0;
  *(uint8_t*)0x2000023b = 0;
  *(uint8_t*)0x2000023c = 0;
  *(uint8_t*)0x2000023d = 0;
  *(uint8_t*)0x2000023e = 0;
  *(uint8_t*)0x2000023f = 0;
  *(uint32_t*)0x20000240 = 0;
  *(uint32_t*)0x20000244 = 0;
  res = syscall(__NR_bpf, 5, 0x20000200, 0x48);
  if (res != -1)
    r[0] = res;
  *(uint32_t*)0x20000540 = r[0];
  *(uint32_t*)0x20000544 = 0x3f000000;
  *(uint32_t*)0x20000548 = 0xe;
  *(uint32_t*)0x2000054c = 0x29;
  *(uint64_t*)0x20000550 = 0x20000440;
  memcpy((void*)0x20000440,
         "\xb9\x07\x03\xe6\x68\x0d\x69\x8c\xb8\x9e\x40\xf0\x2c\xea", 14);
  *(uint64_t*)0x20000558 = 0x20000400;
  *(uint32_t*)0x20000560 = 0x100;
  *(uint32_t*)0x20000564 = 0;
  syscall(__NR_bpf, 0xa, 0x20000540, 0x28);
  return 0;
}