// https://syzkaller.appspot.com/bug?id=e7cb1c0fc7b386dbfedec70619f46fea3ae76480 // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #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; \ } int main(void) { syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); *(uint32_t*)0x2001d000 = 1; *(uint32_t*)0x2001d004 = 0x70; *(uint8_t*)0x2001d008 = 0; *(uint8_t*)0x2001d009 = 0; *(uint8_t*)0x2001d00a = 0; *(uint8_t*)0x2001d00b = 0; *(uint32_t*)0x2001d00c = 0; *(uint64_t*)0x2001d010 = 0x7f; *(uint64_t*)0x2001d018 = 0; *(uint64_t*)0x2001d020 = 0; STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 0, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 1, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 2, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 3, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 4, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 5, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 6, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 7, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 8, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 9, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 10, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 11, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 12, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 13, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 14, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 15, 2); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 17, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 18, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 19, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 20, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 21, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 22, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 23, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 24, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 25, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 26, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 27, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 28, 1); STORE_BY_BITMASK(uint64_t, 0x2001d028, 0, 29, 35); *(uint32_t*)0x2001d030 = 0; *(uint32_t*)0x2001d034 = 0; *(uint64_t*)0x2001d038 = 0x20abe000; *(uint64_t*)0x2001d040 = 0; *(uint64_t*)0x2001d048 = 0; *(uint64_t*)0x2001d050 = 0; *(uint32_t*)0x2001d058 = 0; *(uint32_t*)0x2001d05c = 0; *(uint64_t*)0x2001d060 = 0; *(uint32_t*)0x2001d068 = 0; *(uint16_t*)0x2001d06c = 0; *(uint16_t*)0x2001d06e = 0; syscall(__NR_perf_event_open, 0x2001d000, 0, -1, -1, 0); syscall(__NR_mprotect, 0x20000000, 0x800000, 0); return 0; }