syzkaller-repros/linux/52468220b465a22b4148c1ec4ddbe72f5bf0f2ad.c

// possible deadlock in perf_trace_init
// https://syzkaller.appspot.com/bug?id=52468220b465a22b4148c1ec4ddbe72f5bf0f2ad
// 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[2] = {0xffffffffffffffff, 0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  intptr_t res = 0;
  *(uint32_t*)0x20000000 = 2;
  *(uint32_t*)0x20000004 = 0x70;
  *(uint8_t*)0x20000008 = 0x65;
  *(uint8_t*)0x20000009 = 0;
  *(uint8_t*)0x2000000a = 0;
  *(uint8_t*)0x2000000b = 0;
  *(uint32_t*)0x2000000c = 0;
  *(uint64_t*)0x20000010 = 0;
  *(uint64_t*)0x20000018 = 0;
  *(uint64_t*)0x20000020 = 0;
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 0, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 1, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 2, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 3, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 4, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 5, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 6, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 7, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 8, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 9, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 10, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 11, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 12, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 13, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 14, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 15, 2);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 17, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 18, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 19, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 20, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 21, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 22, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 23, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 24, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 25, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 26, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 27, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 28, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000028, 0, 29, 35);
  *(uint32_t*)0x20000030 = 0;
  *(uint32_t*)0x20000034 = 0;
  *(uint64_t*)0x20000038 = 0;
  *(uint64_t*)0x20000040 = 0;
  *(uint64_t*)0x20000048 = 0;
  *(uint64_t*)0x20000050 = 0;
  *(uint32_t*)0x20000058 = 0;
  *(uint32_t*)0x2000005c = 0;
  *(uint64_t*)0x20000060 = 0;
  *(uint32_t*)0x20000068 = 0;
  *(uint16_t*)0x2000006c = 0;
  *(uint16_t*)0x2000006e = 0;
  res = syscall(__NR_perf_event_open, 0x20000000, -1, 0, -1, 0);
  if (res != -1)
    r[0] = res;
  *(uint32_t*)0x20000200 = 7;
  *(uint32_t*)0x20000204 = 0x70;
  *(uint8_t*)0x20000208 = 4;
  *(uint8_t*)0x20000209 = 0;
  *(uint8_t*)0x2000020a = 0;
  *(uint8_t*)0x2000020b = 0;
  *(uint32_t*)0x2000020c = 0;
  *(uint64_t*)0x20000210 = 0;
  *(uint64_t*)0x20000218 = 0;
  *(uint64_t*)0x20000220 = 0;
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 0, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 1, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 2, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 3, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 4, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 5, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 6, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 7, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 8, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 9, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 10, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 11, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 12, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 13, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 14, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 15, 2);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 17, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 18, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 19, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 20, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 21, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 22, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 23, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 24, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 25, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 26, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 27, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 28, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000228, 0, 29, 35);
  *(uint32_t*)0x20000230 = 0;
  *(uint32_t*)0x20000234 = 0;
  *(uint64_t*)0x20000238 = 0;
  *(uint64_t*)0x20000240 = 0;
  *(uint64_t*)0x20000248 = 0;
  *(uint64_t*)0x20000250 = 0;
  *(uint32_t*)0x20000258 = 0;
  *(uint32_t*)0x2000025c = 0;
  *(uint64_t*)0x20000260 = 0;
  *(uint32_t*)0x20000268 = 0;
  *(uint16_t*)0x2000026c = 0;
  *(uint16_t*)0x2000026e = 0;
  res = syscall(__NR_perf_event_open, 0x20000200, -1, 0, r[0], 0);
  if (res != -1)
    r[1] = res;
  *(uint32_t*)0x20000140 = 2;
  *(uint32_t*)0x20000144 = 0x70;
  *(uint8_t*)0x20000148 = 0;
  *(uint8_t*)0x20000149 = 9;
  *(uint8_t*)0x2000014a = 0;
  *(uint8_t*)0x2000014b = 6;
  *(uint32_t*)0x2000014c = 0;
  *(uint64_t*)0x20000150 = 0x401;
  *(uint64_t*)0x20000158 = 0x4c000;
  *(uint64_t*)0x20000160 = 4;
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 0x80000000, 0, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 0xc03b, 1, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 0x46, 2, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 0x1ff, 3, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 9, 4, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 2, 5, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 8, 6, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 0x35a80000000, 7, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 0x10000, 8, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 5, 9, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 0x1d, 10, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 3, 11, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 0x9f4, 12, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 0x65cf9058, 13, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 7, 14, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 0x40, 15, 2);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 4, 17, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 0x34ff, 18, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 0x1000, 19, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 0x10000, 20, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 0x2000000, 21, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 0x10000, 22, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 5, 23, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 0x741, 24, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 0, 25, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 8, 26, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 2, 27, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 0x7ff, 28, 1);
  STORE_BY_BITMASK(uint64_t, , 0x20000168, 0, 29, 35);
  *(uint32_t*)0x20000170 = 8;
  *(uint32_t*)0x20000174 = 4;
  *(uint64_t*)0x20000178 = 3;
  *(uint64_t*)0x20000180 = 0xe2;
  *(uint64_t*)0x20000188 = 0x11000;
  *(uint64_t*)0x20000190 = 0x100;
  *(uint32_t*)0x20000198 = 4;
  *(uint32_t*)0x2000019c = 3;
  *(uint64_t*)0x200001a0 = 1;
  *(uint32_t*)0x200001a8 = 9;
  *(uint16_t*)0x200001ac = 0;
  *(uint16_t*)0x200001ae = 0;
  syscall(__NR_perf_event_open, 0x20000140, -1, 0, r[1], 0);
  return 0;
}