syzkaller-repros/linux/d67643a91b624d26806fec135662c57038a4eda7.c

// 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[2] = {0xffffffffffffffff, 0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x32ul, -1, 0);
  intptr_t res = 0;
  res = syscall(__NR_socket, 0x10ul, 3ul, 0xcul);
  if (res != -1)
    r[0] = res;
  *(uint64_t*)0x20000300 = 0;
  *(uint32_t*)0x20000308 = 0;
  *(uint64_t*)0x20000310 = 0x20000000;
  *(uint64_t*)0x20000000 = 0x20000040;
  *(uint32_t*)0x20000040 = 0x54;
  *(uint8_t*)0x20000044 = 2;
  *(uint8_t*)0x20000045 = 6;
  *(uint16_t*)0x20000046 = 1;
  *(uint32_t*)0x20000048 = 0;
  *(uint32_t*)0x2000004c = 0;
  *(uint8_t*)0x20000050 = 7;
  *(uint8_t*)0x20000051 = 0;
  *(uint16_t*)0x20000052 = htobe16(0);
  *(uint16_t*)0x20000054 = 0xd;
  *(uint16_t*)0x20000056 = 3;
  memcpy((void*)0x20000058, "hash:net\000", 9);
  *(uint16_t*)0x20000064 = 9;
  *(uint16_t*)0x20000066 = 2;
  memcpy((void*)0x20000068, "syz2\000", 5);
  *(uint16_t*)0x20000070 = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x20000072, 7, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20000073, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20000073, 1, 7, 1);
  *(uint16_t*)0x20000074 = 8;
  STORE_BY_BITMASK(uint16_t, , 0x20000076, 8, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20000077, 1, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20000077, 0, 7, 1);
  *(uint32_t*)0x20000078 = htobe32(0x3b);
  *(uint16_t*)0x2000007c = 5;
  *(uint16_t*)0x2000007e = 1;
  *(uint8_t*)0x20000080 = 7;
  *(uint16_t*)0x20000084 = 5;
  *(uint16_t*)0x20000086 = 4;
  *(uint8_t*)0x20000088 = 0;
  *(uint16_t*)0x2000008c = 5;
  *(uint16_t*)0x2000008e = 5;
  *(uint8_t*)0x20000090 = 2;
  *(uint64_t*)0x20000008 = 0x54;
  *(uint64_t*)0x20000318 = 1;
  *(uint64_t*)0x20000320 = 0;
  *(uint64_t*)0x20000328 = 0;
  *(uint32_t*)0x20000330 = 0x20000040;
  syscall(__NR_sendmsg, r[0], 0x20000300ul, 0ul);
  res = syscall(__NR_socket, 0x10ul, 3ul, 0xcul);
  if (res != -1)
    r[1] = res;
  *(uint64_t*)0x20000d00 = 0;
  *(uint32_t*)0x20000d08 = 0;
  *(uint64_t*)0x20000d10 = 0x20000cc0;
  *(uint64_t*)0x20000cc0 = 0x20000080;
  *(uint32_t*)0x20000080 = 0x44;
  *(uint8_t*)0x20000084 = 9;
  *(uint8_t*)0x20000085 = 6;
  *(uint16_t*)0x20000086 = 0x801;
  *(uint32_t*)0x20000088 = 0;
  *(uint32_t*)0x2000008c = 0;
  *(uint8_t*)0x20000090 = 0;
  *(uint8_t*)0x20000091 = 0;
  *(uint16_t*)0x20000092 = htobe16(0);
  *(uint16_t*)0x20000094 = 5;
  *(uint16_t*)0x20000096 = 1;
  *(uint8_t*)0x20000098 = 7;
  *(uint16_t*)0x2000009c = 0x1c;
  STORE_BY_BITMASK(uint16_t, , 0x2000009e, 7, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000009f, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000009f, 1, 7, 1);
  *(uint16_t*)0x200000a0 = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x200000a2, 2, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200000a3, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200000a3, 1, 7, 1);
  *(uint16_t*)0x200000a4 = 8;
  STORE_BY_BITMASK(uint16_t, , 0x200000a6, 1, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200000a7, 1, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200000a7, 0, 7, 1);
  *(uint32_t*)0x200000a8 = htobe32(0xc6);
  *(uint16_t*)0x200000ac = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x200000ae, 1, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200000af, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200000af, 1, 7, 1);
  *(uint16_t*)0x200000b0 = 8;
  STORE_BY_BITMASK(uint16_t, , 0x200000b2, 1, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200000b3, 1, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200000b3, 0, 7, 1);
  *(uint32_t*)0x200000b4 = htobe32(0xe0000001);
  *(uint16_t*)0x200000b8 = 9;
  *(uint16_t*)0x200000ba = 2;
  memcpy((void*)0x200000bc, "syz2\000", 5);
  *(uint64_t*)0x20000cc8 = 0x44;
  *(uint64_t*)0x20000d18 = 1;
  *(uint64_t*)0x20000d20 = 0;
  *(uint64_t*)0x20000d28 = 0;
  *(uint32_t*)0x20000d30 = 0;
  syscall(__NR_sendmsg, r[1], 0x20000d00ul, 0ul);
  return 0;
}