syzkaller-repros/linux/bf1d98882a783b449bb42e9af6720e4f1b37919d.c

// KASAN: slab-out-of-bounds Read in ipt_init_target
// https://syzkaller.appspot.com/bug?id=bf1d98882a783b449bb42e9af6720e4f1b37919d
// 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>

#define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len)               \
  *(type*)(addr) =                                                             \
      htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) |           \
            (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))

uint64_t r[1] = {0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x32ul, -1, 0);
  intptr_t res = 0;
  res = syscall(__NR_socket, 0x10ul, 3ul, 0ul);
  if (res != -1)
    r[0] = res;
  *(uint64_t*)0x20000300 = 0;
  *(uint32_t*)0x20000308 = 0;
  *(uint64_t*)0x20000310 = 0x200002c0;
  *(uint64_t*)0x200002c0 = 0x20000680;
  *(uint32_t*)0x20000680 = 0x10c;
  *(uint16_t*)0x20000684 = 0x30;
  *(uint16_t*)0x20000686 = 0xfa3d;
  *(uint32_t*)0x20000688 = 0;
  *(uint32_t*)0x2000068c = 0;
  *(uint8_t*)0x20000690 = 0;
  *(uint8_t*)0x20000691 = 0;
  *(uint16_t*)0x20000692 = 0;
  *(uint16_t*)0x20000694 = 0xf8;
  *(uint16_t*)0x20000696 = 1;
  *(uint16_t*)0x20000698 = 0xf4;
  STORE_BY_BITMASK(uint16_t, , 0x2000069a, 1, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000069b, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000069b, 0, 7, 1);
  *(uint16_t*)0x2000069c = 7;
  *(uint16_t*)0x2000069e = 1;
  memcpy((void*)0x200006a0, "xt\000", 3);
  *(uint16_t*)0x200006a4 = 0xe4;
  STORE_BY_BITMASK(uint16_t, , 0x200006a6, 2, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200006a7, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200006a7, 1, 7, 1);
  *(uint16_t*)0x200006a8 = 0x2a;
  *(uint16_t*)0x200006aa = 6;
  *(uint16_t*)0x200006ac = 0x81ca;
  memcpy((void*)0x200006ae, "security\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000",
         32);
  *(uint8_t*)0x200006ce = 0x36;
  *(uint16_t*)0x200006d0 = 4;
  *(uint16_t*)0x200006d4 = 8;
  *(uint16_t*)0x200006d6 = 3;
  *(uint32_t*)0x200006d8 = 5;
  *(uint16_t*)0x200006dc = 8;
  *(uint16_t*)0x200006de = 2;
  *(uint32_t*)0x200006e0 = 1;
  *(uint16_t*)0x200006e4 = 8;
  *(uint16_t*)0x200006e6 = 2;
  *(uint32_t*)0x200006e8 = 0;
  *(uint16_t*)0x200006ec = 8;
  *(uint16_t*)0x200006ee = 3;
  *(uint32_t*)0x200006f0 = 4;
  *(uint16_t*)0x200006f4 = 0x2a;
  *(uint16_t*)0x200006f6 = 6;
  *(uint16_t*)0x200006f8 = 0x1f;
  memcpy((void*)0x200006fa, "filter\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000",
         32);
  *(uint8_t*)0x2000071a = 6;
  *(uint16_t*)0x2000071c = 0x7fff;
  *(uint16_t*)0x20000720 = 0x2a;
  *(uint16_t*)0x20000722 = 6;
  *(uint16_t*)0x20000724 = 0x1ff;
  memcpy((void*)0x20000726, "raw\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000\000\000\000",
         32);
  *(uint8_t*)0x20000746 = 2;
  *(uint16_t*)0x20000748 = 0;
  *(uint16_t*)0x2000074c = 8;
  *(uint16_t*)0x2000074e = 2;
  *(uint32_t*)0x20000750 = 0;
  *(uint16_t*)0x20000754 = 8;
  *(uint16_t*)0x20000756 = 3;
  *(uint32_t*)0x20000758 = 0xd0;
  *(uint16_t*)0x2000075c = 0x2a;
  *(uint16_t*)0x2000075e = 6;
  *(uint16_t*)0x20000760 = 4;
  memcpy((void*)0x20000762, "filter\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000",
         32);
  *(uint8_t*)0x20000782 = 3;
  *(uint16_t*)0x20000784 = 0;
  *(uint16_t*)0x20000788 = 4;
  *(uint16_t*)0x2000078a = 6;
  *(uint64_t*)0x200002c8 = 0x10c;
  *(uint64_t*)0x20000318 = 1;
  *(uint64_t*)0x20000320 = 0;
  *(uint64_t*)0x20000328 = 0;
  *(uint32_t*)0x20000330 = 0;
  syscall(__NR_sendmsg, r[0], 0x20000300ul, 0ul);
  return 0;
}