syzkaller-repros/linux/02aa198e98c66663f04aef8b563f45a72d9e4bcd.c

// WARNING in arch_uprobe_analyze_insn
// https://syzkaller.appspot.com/bug?id=02aa198e98c66663f04aef8b563f45a72d9e4bcd
// status:fixed
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE
#include <endian.h>
#include <stdint.h>
#include <string.h>
#include <sys/syscall.h>
#include <unistd.h>

#define BITMASK_LEN(type, bf_len) (type)((1ull << (bf_len)) - 1)

#define BITMASK_LEN_OFF(type, bf_off, bf_len)                                  \
  (type)(BITMASK_LEN(type, (bf_len)) << (bf_off))

#define STORE_BY_BITMASK(type, addr, val, bf_off, bf_len)                      \
  if ((bf_off) == 0 && (bf_len) == 0) {                                        \
    *(type*)(addr) = (type)(val);                                              \
  } else {                                                                     \
    type new_val = *(type*)(addr);                                             \
    new_val &= ~BITMASK_LEN_OFF(type, (bf_off), (bf_len));                     \
    new_val |= ((type)(val)&BITMASK_LEN(type, (bf_len))) << (bf_off);          \
    *(type*)(addr) = new_val;                                                  \
  }

uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff};
void loop()
{
  long res = 0;
  memcpy((void*)0x20000000, "./file0", 8);
  res = syscall(__NR_open, 0x20000000, 0x440, 0);
  if (res != -1)
    r[0] = res;
  *(uint32_t*)0x2025c000 = 6;
  *(uint32_t*)0x2025c004 = 0x70;
  *(uint8_t*)0x2025c008 = 0;
  *(uint8_t*)0x2025c009 = 0;
  *(uint8_t*)0x2025c00a = 0;
  *(uint8_t*)0x2025c00b = 0;
  *(uint32_t*)0x2025c00c = 0;
  *(uint64_t*)0x2025c010 = 0;
  *(uint64_t*)0x2025c018 = 0;
  *(uint64_t*)0x2025c020 = 0;
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 0, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 1, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 2, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 3, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 4, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 5, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 6, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 7, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 8, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 9, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 10, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 11, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 12, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 13, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 14, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 15, 2);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 17, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 18, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 19, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 20, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 21, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 22, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 23, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 24, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 25, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 26, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 27, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 28, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 29, 35);
  *(uint32_t*)0x2025c030 = 0;
  *(uint32_t*)0x2025c034 = 2;
  *(uint64_t*)0x2025c038 = 0x20000000;
  *(uint64_t*)0x2025c040 = 0;
  *(uint64_t*)0x2025c048 = 0;
  *(uint64_t*)0x2025c050 = 0;
  *(uint32_t*)0x2025c058 = 0;
  *(uint32_t*)0x2025c05c = 0;
  *(uint64_t*)0x2025c060 = 0;
  *(uint32_t*)0x2025c068 = 0;
  *(uint16_t*)0x2025c06c = 0;
  *(uint16_t*)0x2025c06e = 0;
  syscall(__NR_perf_event_open, 0x2025c000, 0, 0, -1, 0);
  memcpy((void*)0x20000140, "./file0", 8);
  res = syscall(__NR_creat, 0x20000140, -1);
  if (res != -1)
    r[1] = res;
  memcpy((void*)0x20000080,
         "\x4b\x9a\xc5\x0e\x6c\x79\xfd\x21\x00\xcd\x64\xeb\xc9\xeb\x47\x32\x33"
         "\xe3\xd7\xa6\x52\xff\x03\x00\x00\xfd\x07\x32\xad\xc7\x58\xc4\x83\xab"
         "\xed\xba\x15\x0d\xf0\x4a\xc7\x24\x49\x05\x83\x81\x81\x4c\x6f\x27\x8f"
         "\x57\x60\xfe\x5c\x51\x81\xd4\xa1\xb4\xea\x5e\x4f\x66\x97\x7c\x84\x5d"
         "\x8e\x23\xf7\xd9\xab\x56\xb6\x5a\x5c\xfa\xd8\x06\xc2\x0d\xc1\x98\x8b"
         "\x42\xd7\x10\x2f\xd3\x7b\x60\xd2\x6b\x28\x89\xdb\xbd\x32\x06\x2b\xff"
         "\x83\x12\xc4\x73\x58\x51\x38\xd6\xa9\x57\xe0\x82\x37",
         115);
  syscall(__NR_write, r[1], 0x20000080, 0x73);
  syscall(__NR_mmap, 0x2000c000, 0x2000, 0, 0x12, r[0], 0);
}

int main()
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  loop();
  return 0;
}