From 3a25a56a92ac1d0d6028a8ecd32ccf03bcd71ade Mon Sep 17 00:00:00 2001 From: Nikita Popov Date: Sun, 25 Jun 2017 21:15:26 +0200 Subject: [PATCH] Fixed bug #74111 --- ext/standard/tests/serialize/bug25378.phpt | 2 +- ext/standard/var_unserializer.c | 1157 ++++++++++---------- ext/standard/var_unserializer.re | 11 +- 3 files changed, 572 insertions(+), 598 deletions(-) diff --git a/ext/standard/tests/serialize/bug25378.phpt b/ext/standard/tests/serialize/bug25378.phpt index e865b96e99..e95a427006 100644 --- a/ext/standard/tests/serialize/bug25378.phpt +++ b/ext/standard/tests/serialize/bug25378.phpt @@ -42,7 +42,7 @@ bool(false) Notice: unserialize(): Error at offset 17 of 33 bytes in %sbug25378.php on line %d bool(false) -Notice: unserialize(): Error at offset 33 of 32 bytes in %sbug25378.php on line %d +Notice: unserialize(): Error at offset 32 of 32 bytes in %sbug25378.php on line %d bool(false) Notice: unserialize(): Error at offset 2 of 13 bytes in %sbug25378.php on line %d diff --git a/ext/standard/var_unserializer.c b/ext/standard/var_unserializer.c index f9ebbe0a6a..c50347d781 100644 --- a/ext/standard/var_unserializer.c +++ b/ext/standard/var_unserializer.c @@ -1,4 +1,4 @@ -/* Generated by re2c 0.16 */ +/* Generated by re2c 0.15.3 */ #line 1 "ext/standard/var_unserializer.re" /* +----------------------------------------------------------------------+ @@ -428,13 +428,12 @@ string_key: static inline int finish_nested_data(UNSERIALIZE_PARAMETER) { - if (*((*p)++) == '}') - return 1; + if (*p >= max || **p != '}') { + return 0; + } -#if SOMETHING_NEW_MIGHT_LEAD_TO_CRASH_ENABLE_IF_YOU_ARE_BRAVE - zval_ptr_dtor(rval); -#endif - return 0; + (*p)++; + return 1; } static inline int object_custom(UNSERIALIZE_PARAMETER, zend_class_entry *ce) @@ -582,7 +581,7 @@ static int php_var_unserialize_internal(UNSERIALIZE_PARAMETER) start = cursor; -#line 586 "ext/standard/var_unserializer.c" +#line 585 "ext/standard/var_unserializer.c" { YYCTYPE yych; static const unsigned char yybm[] = { @@ -623,410 +622,536 @@ static int php_var_unserialize_internal(UNSERIALIZE_PARAMETER) yych = *YYCURSOR; switch (yych) { case 'C': - case 'O': goto yy4; + case 'O': goto yy13; case 'N': goto yy5; - case 'R': goto yy6; - case 'S': goto yy7; - case 'a': goto yy8; - case 'b': goto yy9; - case 'd': goto yy10; - case 'i': goto yy11; + case 'R': goto yy2; + case 'S': goto yy10; + case 'a': goto yy11; + case 'b': goto yy6; + case 'd': goto yy8; + case 'i': goto yy7; case 'o': goto yy12; - case 'r': goto yy13; - case 's': goto yy14; - case '}': goto yy15; - default: goto yy2; + case 'r': goto yy4; + case 's': goto yy9; + case '}': goto yy14; + default: goto yy16; } yy2: - ++YYCURSOR; + yych = *(YYMARKER = ++YYCURSOR); + if (yych == ':') goto yy95; yy3: -#line 963 "ext/standard/var_unserializer.re" +#line 962 "ext/standard/var_unserializer.re" { return 0; } #line 646 "ext/standard/var_unserializer.c" yy4: yych = *(YYMARKER = ++YYCURSOR); - if (yych == ':') goto yy17; + if (yych == ':') goto yy89; goto yy3; yy5: yych = *++YYCURSOR; - if (yych == ';') goto yy19; + if (yych == ';') goto yy87; goto yy3; yy6: yych = *(YYMARKER = ++YYCURSOR); - if (yych == ':') goto yy21; + if (yych == ':') goto yy83; goto yy3; yy7: yych = *(YYMARKER = ++YYCURSOR); - if (yych == ':') goto yy22; + if (yych == ':') goto yy77; goto yy3; yy8: yych = *(YYMARKER = ++YYCURSOR); - if (yych == ':') goto yy23; + if (yych == ':') goto yy53; goto yy3; yy9: yych = *(YYMARKER = ++YYCURSOR); - if (yych == ':') goto yy24; + if (yych == ':') goto yy46; goto yy3; yy10: yych = *(YYMARKER = ++YYCURSOR); - if (yych == ':') goto yy25; + if (yych == ':') goto yy39; goto yy3; yy11: yych = *(YYMARKER = ++YYCURSOR); - if (yych == ':') goto yy26; + if (yych == ':') goto yy32; goto yy3; yy12: yych = *(YYMARKER = ++YYCURSOR); - if (yych == ':') goto yy27; + if (yych == ':') goto yy25; goto yy3; yy13: yych = *(YYMARKER = ++YYCURSOR); - if (yych == ':') goto yy28; + if (yych == ':') goto yy17; goto yy3; yy14: - yych = *(YYMARKER = ++YYCURSOR); - if (yych == ':') goto yy29; - goto yy3; -yy15: ++YYCURSOR; -#line 957 "ext/standard/var_unserializer.re" +#line 956 "ext/standard/var_unserializer.re" { /* this is the case where we have less data than planned */ php_error_docref(NULL, E_NOTICE, "Unexpected end of serialized data"); return 0; /* not sure if it should be 0 or 1 here? */ } -#line 699 "ext/standard/var_unserializer.c" +#line 695 "ext/standard/var_unserializer.c" +yy16: + yych = *++YYCURSOR; + goto yy3; yy17: yych = *++YYCURSOR; if (yybm[0+yych] & 128) { - goto yy31; + goto yy20; } - if (yych == '+') goto yy30; + if (yych == '+') goto yy19; yy18: YYCURSOR = YYMARKER; goto yy3; yy19: - ++YYCURSOR; -#line 641 "ext/standard/var_unserializer.re" - { - *p = YYCURSOR; - ZVAL_NULL(rval); - return 1; -} -#line 717 "ext/standard/var_unserializer.c" -yy21: yych = *++YYCURSOR; - if (yych <= ',') { - if (yych == '+') goto yy33; - goto yy18; - } else { - if (yych <= '-') goto yy33; - if (yych <= '/') goto yy18; - if (yych <= '9') goto yy34; - goto yy18; + if (yybm[0+yych] & 128) { + goto yy20; } -yy22: - yych = *++YYCURSOR; - if (yych == '+') goto yy36; - if (yych <= '/') goto yy18; - if (yych <= '9') goto yy37; - goto yy18; -yy23: - yych = *++YYCURSOR; - if (yych == '+') goto yy39; - if (yych <= '/') goto yy18; - if (yych <= '9') goto yy40; goto yy18; -yy24: - yych = *++YYCURSOR; +yy20: + ++YYCURSOR; + if ((YYLIMIT - YYCURSOR) < 2) YYFILL(2); + yych = *YYCURSOR; + if (yybm[0+yych] & 128) { + goto yy20; + } if (yych <= '/') goto yy18; - if (yych <= '1') goto yy42; - goto yy18; -yy25: + if (yych >= ';') goto yy18; yych = *++YYCURSOR; - if (yych <= '/') { - if (yych <= ',') { - if (yych == '+') goto yy43; - goto yy18; - } else { - if (yych <= '-') goto yy44; - if (yych <= '.') goto yy45; - goto yy18; + if (yych != '"') goto yy18; + ++YYCURSOR; +#line 804 "ext/standard/var_unserializer.re" + { + size_t len, len2, len3, maxlen; + zend_long elements; + char *str; + zend_string *class_name; + zend_class_entry *ce; + int incomplete_class = 0; + + int custom_object = 0; + + zval user_func; + zval retval; + zval args[1]; + + if (!var_hash) return 0; + if (*start == 'C') { + custom_object = 1; + } + + len2 = len = parse_uiv(start + 2); + maxlen = max - YYCURSOR; + if (maxlen < len || len == 0) { + *p = start + 2; + return 0; + } + + str = (char*)YYCURSOR; + + YYCURSOR += len; + + if (*(YYCURSOR) != '"') { + *p = YYCURSOR; + return 0; + } + if (*(YYCURSOR+1) != ':') { + *p = YYCURSOR+1; + return 0; + } + + len3 = strspn(str, "0123456789_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237\240\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337\340\341\342\343\344\345\346\347\350\351\352\353\354\355\356\357\360\361\362\363\364\365\366\367\370\371\372\373\374\375\376\377\\"); + if (len3 != len) + { + *p = YYCURSOR + len3 - len; + return 0; + } + + class_name = zend_string_init(str, len, 0); + + do { + if(!unserialize_allowed_class(class_name, classes)) { + incomplete_class = 1; + ce = PHP_IC_ENTRY; + break; } - } else { - if (yych <= 'I') { - if (yych <= '9') goto yy46; - if (yych <= 'H') goto yy18; - goto yy48; - } else { - if (yych == 'N') goto yy49; - goto yy18; + + /* Try to find class directly */ + BG(serialize_lock)++; + ce = zend_lookup_class(class_name); + if (ce) { + BG(serialize_lock)--; + if (EG(exception)) { + zend_string_release(class_name); + return 0; + } + break; + } + BG(serialize_lock)--; + + if (EG(exception)) { + zend_string_release(class_name); + return 0; + } + + /* Check for unserialize callback */ + if ((PG(unserialize_callback_func) == NULL) || (PG(unserialize_callback_func)[0] == '\0')) { + incomplete_class = 1; + ce = PHP_IC_ENTRY; + break; + } + + /* Call unserialize callback */ + ZVAL_STRING(&user_func, PG(unserialize_callback_func)); + + ZVAL_STR_COPY(&args[0], class_name); + BG(serialize_lock)++; + if (call_user_function_ex(CG(function_table), NULL, &user_func, &retval, 1, args, 0, NULL) != SUCCESS) { + BG(serialize_lock)--; + if (EG(exception)) { + zend_string_release(class_name); + zval_ptr_dtor(&user_func); + zval_ptr_dtor(&args[0]); + return 0; + } + php_error_docref(NULL, E_WARNING, "defined (%s) but not found", Z_STRVAL(user_func)); + incomplete_class = 1; + ce = PHP_IC_ENTRY; + zval_ptr_dtor(&user_func); + zval_ptr_dtor(&args[0]); + break; + } + BG(serialize_lock)--; + zval_ptr_dtor(&retval); + if (EG(exception)) { + zend_string_release(class_name); + zval_ptr_dtor(&user_func); + zval_ptr_dtor(&args[0]); + return 0; + } + + /* The callback function may have defined the class */ + BG(serialize_lock)++; + if ((ce = zend_lookup_class(class_name)) == NULL) { + php_error_docref(NULL, E_WARNING, "Function %s() hasn't defined the class it was called for", Z_STRVAL(user_func)); + incomplete_class = 1; + ce = PHP_IC_ENTRY; + } + BG(serialize_lock)--; + + zval_ptr_dtor(&user_func); + zval_ptr_dtor(&args[0]); + break; + } while (1); + + *p = YYCURSOR; + + if (custom_object) { + int ret; + + ret = object_custom(UNSERIALIZE_PASSTHRU, ce); + + if (ret && incomplete_class) { + php_store_class_name(rval, ZSTR_VAL(class_name), len2); } + zend_string_release(class_name); + return ret; } -yy26: - yych = *++YYCURSOR; - if (yych <= ',') { - if (yych == '+') goto yy50; - goto yy18; - } else { - if (yych <= '-') goto yy50; - if (yych <= '/') goto yy18; - if (yych <= '9') goto yy51; - goto yy18; + + elements = object_common1(UNSERIALIZE_PASSTHRU, ce); + + if (elements < 0) { + zend_string_release(class_name); + return 0; } -yy27: - yych = *++YYCURSOR; - if (yych <= ',') { - if (yych == '+') goto yy53; - goto yy18; - } else { - if (yych <= '-') goto yy53; - if (yych <= '/') goto yy18; - if (yych <= '9') goto yy54; - goto yy18; + + if (incomplete_class) { + php_store_class_name(rval, ZSTR_VAL(class_name), len2); } -yy28: + zend_string_release(class_name); + + return object_common2(UNSERIALIZE_PASSTHRU, elements); +} +#line 878 "ext/standard/var_unserializer.c" +yy25: yych = *++YYCURSOR; if (yych <= ',') { - if (yych == '+') goto yy56; - goto yy18; + if (yych != '+') goto yy18; } else { - if (yych <= '-') goto yy56; + if (yych <= '-') goto yy26; if (yych <= '/') goto yy18; - if (yych <= '9') goto yy57; + if (yych <= '9') goto yy27; goto yy18; } -yy29: +yy26: yych = *++YYCURSOR; - if (yych == '+') goto yy59; if (yych <= '/') goto yy18; - if (yych <= '9') goto yy60; - goto yy18; -yy30: - yych = *++YYCURSOR; - if (yybm[0+yych] & 128) { - goto yy31; - } - goto yy18; -yy31: + if (yych >= ':') goto yy18; +yy27: ++YYCURSOR; if ((YYLIMIT - YYCURSOR) < 2) YYFILL(2); yych = *YYCURSOR; - if (yybm[0+yych] & 128) { - goto yy31; - } if (yych <= '/') goto yy18; - if (yych <= ':') goto yy62; - goto yy18; -yy33: + if (yych <= '9') goto yy27; + if (yych >= ';') goto yy18; yych = *++YYCURSOR; - if (yych <= '/') goto yy18; - if (yych >= ':') goto yy18; -yy34: + if (yych != '"') goto yy18; ++YYCURSOR; - if (YYLIMIT <= YYCURSOR) YYFILL(1); - yych = *YYCURSOR; +#line 793 "ext/standard/var_unserializer.re" + { + zend_long elements; + if (!var_hash) return 0; + + elements = object_common1(UNSERIALIZE_PASSTHRU, ZEND_STANDARD_CLASS_DEF_PTR); + if (elements < 0 || elements >= HT_MAX_SIZE) { + return 0; + } + return object_common2(UNSERIALIZE_PASSTHRU, elements); +} +#line 914 "ext/standard/var_unserializer.c" +yy32: + yych = *++YYCURSOR; + if (yych == '+') goto yy33; if (yych <= '/') goto yy18; if (yych <= '9') goto yy34; - if (yych == ';') goto yy63; goto yy18; -yy36: +yy33: yych = *++YYCURSOR; if (yych <= '/') goto yy18; if (yych >= ':') goto yy18; -yy37: +yy34: ++YYCURSOR; if ((YYLIMIT - YYCURSOR) < 2) YYFILL(2); yych = *YYCURSOR; if (yych <= '/') goto yy18; - if (yych <= '9') goto yy37; - if (yych <= ':') goto yy65; - goto yy18; -yy39: + if (yych <= '9') goto yy34; + if (yych >= ';') goto yy18; yych = *++YYCURSOR; - if (yych <= '/') goto yy18; - if (yych >= ':') goto yy18; -yy40: + if (yych != '{') goto yy18; ++YYCURSOR; - if ((YYLIMIT - YYCURSOR) < 2) YYFILL(2); - yych = *YYCURSOR; - if (yych <= '/') goto yy18; - if (yych <= '9') goto yy40; - if (yych <= ':') goto yy66; - goto yy18; -yy42: - yych = *++YYCURSOR; - if (yych == ';') goto yy67; - goto yy18; -yy43: - yych = *++YYCURSOR; - if (yych == '.') goto yy45; - if (yych <= '/') goto yy18; - if (yych <= '9') goto yy46; - goto yy18; -yy44: - yych = *++YYCURSOR; - if (yych <= '/') { - if (yych != '.') goto yy18; - } else { - if (yych <= '9') goto yy46; - if (yych == 'I') goto yy48; - goto yy18; +#line 769 "ext/standard/var_unserializer.re" + { + zend_long elements = parse_iv(start + 2); + /* use iv() not uiv() in order to check data range */ + *p = YYCURSOR; + if (!var_hash) return 0; + + if (elements < 0 || elements >= HT_MAX_SIZE) { + return 0; } -yy45: - yych = *++YYCURSOR; - if (yych <= '/') goto yy18; - if (yych <= '9') goto yy69; - goto yy18; -yy46: - ++YYCURSOR; - if ((YYLIMIT - YYCURSOR) < 4) YYFILL(4); - yych = *YYCURSOR; - if (yych <= ':') { - if (yych <= '.') { - if (yych <= '-') goto yy18; - goto yy69; - } else { - if (yych <= '/') goto yy18; - if (yych <= '9') goto yy46; - goto yy18; - } - } else { - if (yych <= 'E') { - if (yych <= ';') goto yy71; - if (yych <= 'D') goto yy18; - goto yy73; - } else { - if (yych == 'e') goto yy73; - goto yy18; - } + + array_init_size(rval, elements); + if (elements) { + /* we can't convert from packed to hash during unserialization, because + reference to some zvals might be keept in var_hash (to support references) */ + zend_hash_real_init(Z_ARRVAL_P(rval), 0); } -yy48: - yych = *++YYCURSOR; - if (yych == 'N') goto yy74; - goto yy18; -yy49: - yych = *++YYCURSOR; - if (yych == 'A') goto yy75; - goto yy18; -yy50: + + if (!process_nested_data(UNSERIALIZE_PASSTHRU, Z_ARRVAL_P(rval), elements, 0)) { + return 0; + } + + return finish_nested_data(UNSERIALIZE_PASSTHRU); +} +#line 959 "ext/standard/var_unserializer.c" +yy39: yych = *++YYCURSOR; + if (yych == '+') goto yy40; if (yych <= '/') goto yy18; - if (yych >= ':') goto yy18; -yy51: - ++YYCURSOR; - if (YYLIMIT <= YYCURSOR) YYFILL(1); - yych = *YYCURSOR; - if (yych <= '/') goto yy18; - if (yych <= '9') goto yy51; - if (yych == ';') goto yy76; + if (yych <= '9') goto yy41; goto yy18; -yy53: +yy40: yych = *++YYCURSOR; if (yych <= '/') goto yy18; if (yych >= ':') goto yy18; -yy54: +yy41: ++YYCURSOR; if ((YYLIMIT - YYCURSOR) < 2) YYFILL(2); yych = *YYCURSOR; if (yych <= '/') goto yy18; - if (yych <= '9') goto yy54; - if (yych <= ':') goto yy78; - goto yy18; -yy56: + if (yych <= '9') goto yy41; + if (yych >= ';') goto yy18; yych = *++YYCURSOR; - if (yych <= '/') goto yy18; - if (yych >= ':') goto yy18; -yy57: + if (yych != '"') goto yy18; ++YYCURSOR; - if (YYLIMIT <= YYCURSOR) YYFILL(1); - yych = *YYCURSOR; +#line 735 "ext/standard/var_unserializer.re" + { + size_t len, maxlen; + zend_string *str; + + len = parse_uiv(start + 2); + maxlen = max - YYCURSOR; + if (maxlen < len) { + *p = start + 2; + return 0; + } + + if ((str = unserialize_str(&YYCURSOR, len, maxlen)) == NULL) { + return 0; + } + + if (*(YYCURSOR) != '"') { + zend_string_free(str); + *p = YYCURSOR; + return 0; + } + + if (*(YYCURSOR + 1) != ';') { + efree(str); + *p = YYCURSOR + 1; + return 0; + } + + YYCURSOR += 2; + *p = YYCURSOR; + + ZVAL_STR(rval, str); + return 1; +} +#line 1014 "ext/standard/var_unserializer.c" +yy46: + yych = *++YYCURSOR; + if (yych == '+') goto yy47; if (yych <= '/') goto yy18; - if (yych <= '9') goto yy57; - if (yych == ';') goto yy79; + if (yych <= '9') goto yy48; goto yy18; -yy59: +yy47: yych = *++YYCURSOR; if (yych <= '/') goto yy18; if (yych >= ':') goto yy18; -yy60: +yy48: ++YYCURSOR; if ((YYLIMIT - YYCURSOR) < 2) YYFILL(2); yych = *YYCURSOR; if (yych <= '/') goto yy18; - if (yych <= '9') goto yy60; - if (yych <= ':') goto yy81; - goto yy18; -yy62: + if (yych <= '9') goto yy48; + if (yych >= ';') goto yy18; yych = *++YYCURSOR; - if (yych == '"') goto yy82; - goto yy18; -yy63: + if (yych != '"') goto yy18; ++YYCURSOR; -#line 590 "ext/standard/var_unserializer.re" +#line 703 "ext/standard/var_unserializer.re" { - zend_long id; - - *p = YYCURSOR; - if (!var_hash) return 0; + size_t len, maxlen; + char *str; - id = parse_iv(start + 2) - 1; - if (id == -1 || (rval_ref = var_access(var_hash, id)) == NULL) { + len = parse_uiv(start + 2); + maxlen = max - YYCURSOR; + if (maxlen < len) { + *p = start + 2; return 0; } - zval_ptr_dtor(rval); - if (Z_ISUNDEF_P(rval_ref) || (Z_ISREF_P(rval_ref) && Z_ISUNDEF_P(Z_REFVAL_P(rval_ref)))) { - ZVAL_UNDEF(rval); - return 1; + str = (char*)YYCURSOR; + + YYCURSOR += len; + + if (*(YYCURSOR) != '"') { + *p = YYCURSOR; + return 0; } - if (Z_ISREF_P(rval_ref)) { - ZVAL_COPY(rval, rval_ref); - } else { - ZVAL_NEW_REF(rval_ref, rval_ref); - ZVAL_COPY(rval, rval_ref); + + if (*(YYCURSOR + 1) != ';') { + *p = YYCURSOR + 1; + return 0; } + YYCURSOR += 2; + *p = YYCURSOR; + + ZVAL_STRINGL(rval, str, len); return 1; } -#line 993 "ext/standard/var_unserializer.c" -yy65: +#line 1067 "ext/standard/var_unserializer.c" +yy53: + yych = *++YYCURSOR; + if (yych <= '/') { + if (yych <= ',') { + if (yych == '+') goto yy57; + goto yy18; + } else { + if (yych <= '-') goto yy55; + if (yych <= '.') goto yy60; + goto yy18; + } + } else { + if (yych <= 'I') { + if (yych <= '9') goto yy58; + if (yych <= 'H') goto yy18; + goto yy56; + } else { + if (yych != 'N') goto yy18; + } + } yych = *++YYCURSOR; - if (yych == '"') goto yy84; + if (yych == 'A') goto yy76; goto yy18; -yy66: +yy55: + yych = *++YYCURSOR; + if (yych <= '/') { + if (yych == '.') goto yy60; + goto yy18; + } else { + if (yych <= '9') goto yy58; + if (yych != 'I') goto yy18; + } +yy56: yych = *++YYCURSOR; - if (yych == '{') goto yy86; + if (yych == 'N') goto yy72; goto yy18; -yy67: +yy57: + yych = *++YYCURSOR; + if (yych == '.') goto yy60; + if (yych <= '/') goto yy18; + if (yych >= ':') goto yy18; +yy58: ++YYCURSOR; -#line 647 "ext/standard/var_unserializer.re" - { - *p = YYCURSOR; - ZVAL_BOOL(rval, parse_iv(start + 2)); - return 1; -} -#line 1010 "ext/standard/var_unserializer.c" -yy69: + if ((YYLIMIT - YYCURSOR) < 4) YYFILL(4); + yych = *YYCURSOR; + if (yych <= ':') { + if (yych <= '.') { + if (yych <= '-') goto yy18; + goto yy70; + } else { + if (yych <= '/') goto yy18; + if (yych <= '9') goto yy58; + goto yy18; + } + } else { + if (yych <= 'E') { + if (yych <= ';') goto yy63; + if (yych <= 'D') goto yy18; + goto yy65; + } else { + if (yych == 'e') goto yy65; + goto yy18; + } + } +yy60: + yych = *++YYCURSOR; + if (yych <= '/') goto yy18; + if (yych >= ':') goto yy18; +yy61: ++YYCURSOR; if ((YYLIMIT - YYCURSOR) < 4) YYFILL(4); yych = *YYCURSOR; if (yych <= ';') { if (yych <= '/') goto yy18; - if (yych <= '9') goto yy69; + if (yych <= '9') goto yy61; if (yych <= ':') goto yy18; } else { if (yych <= 'E') { if (yych <= 'D') goto yy18; - goto yy73; + goto yy65; } else { - if (yych == 'e') goto yy73; + if (yych == 'e') goto yy65; goto yy18; } } -yy71: +yy63: ++YYCURSOR; -#line 695 "ext/standard/var_unserializer.re" +#line 694 "ext/standard/var_unserializer.re" { #if SIZEOF_ZEND_LONG == 4 use_double: @@ -1035,407 +1160,257 @@ use_double: ZVAL_DOUBLE(rval, zend_strtod((const char *)start + 2, NULL)); return 1; } -#line 1039 "ext/standard/var_unserializer.c" -yy73: +#line 1164 "ext/standard/var_unserializer.c" +yy65: yych = *++YYCURSOR; if (yych <= ',') { - if (yych == '+') goto yy88; - goto yy18; + if (yych != '+') goto yy18; } else { - if (yych <= '-') goto yy88; + if (yych <= '-') goto yy66; if (yych <= '/') goto yy18; - if (yych <= '9') goto yy89; + if (yych <= '9') goto yy67; goto yy18; } -yy74: +yy66: yych = *++YYCURSOR; - if (yych == 'F') goto yy91; + if (yych <= ',') { + if (yych == '+') goto yy69; + goto yy18; + } else { + if (yych <= '-') goto yy69; + if (yych <= '/') goto yy18; + if (yych >= ':') goto yy18; + } +yy67: + ++YYCURSOR; + if (YYLIMIT <= YYCURSOR) YYFILL(1); + yych = *YYCURSOR; + if (yych <= '/') goto yy18; + if (yych <= '9') goto yy67; + if (yych == ';') goto yy63; goto yy18; -yy75: +yy69: yych = *++YYCURSOR; - if (yych == 'N') goto yy91; + if (yych <= '/') goto yy18; + if (yych <= '9') goto yy67; goto yy18; -yy76: +yy70: ++YYCURSOR; -#line 653 "ext/standard/var_unserializer.re" - { -#if SIZEOF_ZEND_LONG == 4 - int digits = YYCURSOR - start - 3; - - if (start[2] == '-' || start[2] == '+') { - digits--; - } - - /* Use double for large zend_long values that were serialized on a 64-bit system */ - if (digits >= MAX_LENGTH_OF_LONG - 1) { - if (digits == MAX_LENGTH_OF_LONG - 1) { - int cmp = strncmp((char*)YYCURSOR - MAX_LENGTH_OF_LONG, long_min_digits, MAX_LENGTH_OF_LONG - 1); - - if (!(cmp < 0 || (cmp == 0 && start[2] == '-'))) { - goto use_double; - } + if ((YYLIMIT - YYCURSOR) < 4) YYFILL(4); + yych = *YYCURSOR; + if (yych <= ';') { + if (yych <= '/') goto yy18; + if (yych <= '9') goto yy70; + if (yych <= ':') goto yy18; + goto yy63; + } else { + if (yych <= 'E') { + if (yych <= 'D') goto yy18; + goto yy65; } else { - goto use_double; + if (yych == 'e') goto yy65; + goto yy18; } } -#endif - *p = YYCURSOR; - ZVAL_LONG(rval, parse_iv(start + 2)); - return 1; -} -#line 1087 "ext/standard/var_unserializer.c" -yy78: +yy72: yych = *++YYCURSOR; - if (yych == '"') goto yy92; - goto yy18; -yy79: + if (yych != 'F') goto yy18; +yy73: + yych = *++YYCURSOR; + if (yych != ';') goto yy18; ++YYCURSOR; -#line 616 "ext/standard/var_unserializer.re" +#line 678 "ext/standard/var_unserializer.re" { - zend_long id; - - *p = YYCURSOR; - if (!var_hash) return 0; - - id = parse_iv(start + 2) - 1; - if (id == -1 || (rval_ref = var_access(var_hash, id)) == NULL) { - return 0; - } - - if (rval_ref == rval) { - return 0; - } + *p = YYCURSOR; - if (Z_ISUNDEF_P(rval_ref) || (Z_ISREF_P(rval_ref) && Z_ISUNDEF_P(Z_REFVAL_P(rval_ref)))) { - ZVAL_UNDEF(rval); - return 1; + if (!strncmp((char*)start + 2, "NAN", 3)) { + ZVAL_DOUBLE(rval, php_get_nan()); + } else if (!strncmp((char*)start + 2, "INF", 3)) { + ZVAL_DOUBLE(rval, php_get_inf()); + } else if (!strncmp((char*)start + 2, "-INF", 4)) { + ZVAL_DOUBLE(rval, -php_get_inf()); + } else { + ZVAL_NULL(rval); } - ZVAL_COPY(rval, rval_ref); - return 1; } -#line 1119 "ext/standard/var_unserializer.c" -yy81: +#line 1239 "ext/standard/var_unserializer.c" +yy76: yych = *++YYCURSOR; - if (yych == '"') goto yy94; + if (yych == 'N') goto yy73; goto yy18; -yy82: +yy77: + yych = *++YYCURSOR; + if (yych <= ',') { + if (yych != '+') goto yy18; + } else { + if (yych <= '-') goto yy78; + if (yych <= '/') goto yy18; + if (yych <= '9') goto yy79; + goto yy18; + } +yy78: + yych = *++YYCURSOR; + if (yych <= '/') goto yy18; + if (yych >= ':') goto yy18; +yy79: ++YYCURSOR; -#line 805 "ext/standard/var_unserializer.re" + if (YYLIMIT <= YYCURSOR) YYFILL(1); + yych = *YYCURSOR; + if (yych <= '/') goto yy18; + if (yych <= '9') goto yy79; + if (yych != ';') goto yy18; + ++YYCURSOR; +#line 652 "ext/standard/var_unserializer.re" { - size_t len, len2, len3, maxlen; - zend_long elements; - char *str; - zend_string *class_name; - zend_class_entry *ce; - int incomplete_class = 0; - - int custom_object = 0; - - zval user_func; - zval retval; - zval args[1]; - - if (!var_hash) return 0; - if (*start == 'C') { - custom_object = 1; - } - - len2 = len = parse_uiv(start + 2); - maxlen = max - YYCURSOR; - if (maxlen < len || len == 0) { - *p = start + 2; - return 0; - } - - str = (char*)YYCURSOR; - - YYCURSOR += len; - - if (*(YYCURSOR) != '"') { - *p = YYCURSOR; - return 0; - } - if (*(YYCURSOR+1) != ':') { - *p = YYCURSOR+1; - return 0; - } +#if SIZEOF_ZEND_LONG == 4 + int digits = YYCURSOR - start - 3; - len3 = strspn(str, "0123456789_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237\240\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337\340\341\342\343\344\345\346\347\350\351\352\353\354\355\356\357\360\361\362\363\364\365\366\367\370\371\372\373\374\375\376\377\\"); - if (len3 != len) - { - *p = YYCURSOR + len3 - len; - return 0; + if (start[2] == '-' || start[2] == '+') { + digits--; } - class_name = zend_string_init(str, len, 0); - - do { - if(!unserialize_allowed_class(class_name, classes)) { - incomplete_class = 1; - ce = PHP_IC_ENTRY; - break; - } - - /* Try to find class directly */ - BG(serialize_lock)++; - ce = zend_lookup_class(class_name); - if (ce) { - BG(serialize_lock)--; - if (EG(exception)) { - zend_string_release(class_name); - return 0; - } - break; - } - BG(serialize_lock)--; - - if (EG(exception)) { - zend_string_release(class_name); - return 0; - } - - /* Check for unserialize callback */ - if ((PG(unserialize_callback_func) == NULL) || (PG(unserialize_callback_func)[0] == '\0')) { - incomplete_class = 1; - ce = PHP_IC_ENTRY; - break; - } - - /* Call unserialize callback */ - ZVAL_STRING(&user_func, PG(unserialize_callback_func)); + /* Use double for large zend_long values that were serialized on a 64-bit system */ + if (digits >= MAX_LENGTH_OF_LONG - 1) { + if (digits == MAX_LENGTH_OF_LONG - 1) { + int cmp = strncmp((char*)YYCURSOR - MAX_LENGTH_OF_LONG, long_min_digits, MAX_LENGTH_OF_LONG - 1); - ZVAL_STR_COPY(&args[0], class_name); - BG(serialize_lock)++; - if (call_user_function_ex(CG(function_table), NULL, &user_func, &retval, 1, args, 0, NULL) != SUCCESS) { - BG(serialize_lock)--; - if (EG(exception)) { - zend_string_release(class_name); - zval_ptr_dtor(&user_func); - zval_ptr_dtor(&args[0]); - return 0; + if (!(cmp < 0 || (cmp == 0 && start[2] == '-'))) { + goto use_double; } - php_error_docref(NULL, E_WARNING, "defined (%s) but not found", Z_STRVAL(user_func)); - incomplete_class = 1; - ce = PHP_IC_ENTRY; - zval_ptr_dtor(&user_func); - zval_ptr_dtor(&args[0]); - break; - } - BG(serialize_lock)--; - zval_ptr_dtor(&retval); - if (EG(exception)) { - zend_string_release(class_name); - zval_ptr_dtor(&user_func); - zval_ptr_dtor(&args[0]); - return 0; - } - - /* The callback function may have defined the class */ - BG(serialize_lock)++; - if ((ce = zend_lookup_class(class_name)) == NULL) { - php_error_docref(NULL, E_WARNING, "Function %s() hasn't defined the class it was called for", Z_STRVAL(user_func)); - incomplete_class = 1; - ce = PHP_IC_ENTRY; - } - BG(serialize_lock)--; - - zval_ptr_dtor(&user_func); - zval_ptr_dtor(&args[0]); - break; - } while (1); - - *p = YYCURSOR; - - if (custom_object) { - int ret; - - ret = object_custom(UNSERIALIZE_PASSTHRU, ce); - - if (ret && incomplete_class) { - php_store_class_name(rval, ZSTR_VAL(class_name), len2); + } else { + goto use_double; } - zend_string_release(class_name); - return ret; - } - - elements = object_common1(UNSERIALIZE_PASSTHRU, ce); - - if (elements < 0) { - zend_string_release(class_name); - return 0; } - - if (incomplete_class) { - php_store_class_name(rval, ZSTR_VAL(class_name), len2); - } - zend_string_release(class_name); - - return object_common2(UNSERIALIZE_PASSTHRU, elements); +#endif + *p = YYCURSOR; + ZVAL_LONG(rval, parse_iv(start + 2)); + return 1; } -#line 1278 "ext/standard/var_unserializer.c" -yy84: +#line 1292 "ext/standard/var_unserializer.c" +yy83: + yych = *++YYCURSOR; + if (yych <= '/') goto yy18; + if (yych >= '2') goto yy18; + yych = *++YYCURSOR; + if (yych != ';') goto yy18; ++YYCURSOR; -#line 736 "ext/standard/var_unserializer.re" +#line 646 "ext/standard/var_unserializer.re" { - size_t len, maxlen; - zend_string *str; - - len = parse_uiv(start + 2); - maxlen = max - YYCURSOR; - if (maxlen < len) { - *p = start + 2; - return 0; - } - - if ((str = unserialize_str(&YYCURSOR, len, maxlen)) == NULL) { - return 0; - } - - if (*(YYCURSOR) != '"') { - zend_string_free(str); - *p = YYCURSOR; - return 0; - } - - if (*(YYCURSOR + 1) != ';') { - efree(str); - *p = YYCURSOR + 1; - return 0; - } - - YYCURSOR += 2; *p = YYCURSOR; - - ZVAL_STR(rval, str); + ZVAL_BOOL(rval, parse_iv(start + 2)); return 1; } -#line 1315 "ext/standard/var_unserializer.c" -yy86: +#line 1306 "ext/standard/var_unserializer.c" +yy87: ++YYCURSOR; -#line 770 "ext/standard/var_unserializer.re" +#line 640 "ext/standard/var_unserializer.re" { - zend_long elements = parse_iv(start + 2); - /* use iv() not uiv() in order to check data range */ *p = YYCURSOR; - if (!var_hash) return 0; - - if (elements < 0 || elements >= HT_MAX_SIZE) { - return 0; - } - - array_init_size(rval, elements); - if (elements) { - /* we can't convert from packed to hash during unserialization, because - reference to some zvals might be keept in var_hash (to support references) */ - zend_hash_real_init(Z_ARRVAL_P(rval), 0); - } - - if (!process_nested_data(UNSERIALIZE_PASSTHRU, Z_ARRVAL_P(rval), elements, 0)) { - return 0; - } - - return finish_nested_data(UNSERIALIZE_PASSTHRU); + ZVAL_NULL(rval); + return 1; } -#line 1342 "ext/standard/var_unserializer.c" -yy88: +#line 1315 "ext/standard/var_unserializer.c" +yy89: yych = *++YYCURSOR; if (yych <= ',') { - if (yych == '+') goto yy96; - goto yy18; + if (yych != '+') goto yy18; } else { - if (yych <= '-') goto yy96; + if (yych <= '-') goto yy90; if (yych <= '/') goto yy18; - if (yych >= ':') goto yy18; + if (yych <= '9') goto yy91; + goto yy18; } -yy89: +yy90: + yych = *++YYCURSOR; + if (yych <= '/') goto yy18; + if (yych >= ':') goto yy18; +yy91: ++YYCURSOR; if (YYLIMIT <= YYCURSOR) YYFILL(1); yych = *YYCURSOR; if (yych <= '/') goto yy18; - if (yych <= '9') goto yy89; - if (yych == ';') goto yy71; - goto yy18; -yy91: - yych = *++YYCURSOR; - if (yych == ';') goto yy97; - goto yy18; -yy92: + if (yych <= '9') goto yy91; + if (yych != ';') goto yy18; ++YYCURSOR; -#line 794 "ext/standard/var_unserializer.re" +#line 615 "ext/standard/var_unserializer.re" { - zend_long elements; - if (!var_hash) return 0; + zend_long id; - elements = object_common1(UNSERIALIZE_PASSTHRU, ZEND_STANDARD_CLASS_DEF_PTR); - if (elements < 0 || elements >= HT_MAX_SIZE) { - return 0; - } - return object_common2(UNSERIALIZE_PASSTHRU, elements); -} -#line 1378 "ext/standard/var_unserializer.c" -yy94: - ++YYCURSOR; -#line 704 "ext/standard/var_unserializer.re" - { - size_t len, maxlen; - char *str; + *p = YYCURSOR; + if (!var_hash) return 0; - len = parse_uiv(start + 2); - maxlen = max - YYCURSOR; - if (maxlen < len) { - *p = start + 2; + id = parse_iv(start + 2) - 1; + if (id == -1 || (rval_ref = var_access(var_hash, id)) == NULL) { return 0; } - str = (char*)YYCURSOR; - - YYCURSOR += len; - - if (*(YYCURSOR) != '"') { - *p = YYCURSOR; + if (rval_ref == rval) { return 0; } - if (*(YYCURSOR + 1) != ';') { - *p = YYCURSOR + 1; - return 0; + if (Z_ISUNDEF_P(rval_ref) || (Z_ISREF_P(rval_ref) && Z_ISUNDEF_P(Z_REFVAL_P(rval_ref)))) { + ZVAL_UNDEF(rval); + return 1; } - YYCURSOR += 2; - *p = YYCURSOR; + ZVAL_COPY(rval, rval_ref); - ZVAL_STRINGL(rval, str, len); return 1; } -#line 1413 "ext/standard/var_unserializer.c" +#line 1363 "ext/standard/var_unserializer.c" +yy95: + yych = *++YYCURSOR; + if (yych <= ',') { + if (yych != '+') goto yy18; + } else { + if (yych <= '-') goto yy96; + if (yych <= '/') goto yy18; + if (yych <= '9') goto yy97; + goto yy18; + } yy96: yych = *++YYCURSOR; if (yych <= '/') goto yy18; - if (yych <= '9') goto yy89; - goto yy18; + if (yych >= ':') goto yy18; yy97: ++YYCURSOR; -#line 679 "ext/standard/var_unserializer.re" + if (YYLIMIT <= YYCURSOR) YYFILL(1); + yych = *YYCURSOR; + if (yych <= '/') goto yy18; + if (yych <= '9') goto yy97; + if (yych != ';') goto yy18; + ++YYCURSOR; +#line 589 "ext/standard/var_unserializer.re" { - *p = YYCURSOR; + zend_long id; - if (!strncmp((char*)start + 2, "NAN", 3)) { - ZVAL_DOUBLE(rval, php_get_nan()); - } else if (!strncmp((char*)start + 2, "INF", 3)) { - ZVAL_DOUBLE(rval, php_get_inf()); - } else if (!strncmp((char*)start + 2, "-INF", 4)) { - ZVAL_DOUBLE(rval, -php_get_inf()); + *p = YYCURSOR; + if (!var_hash) return 0; + + id = parse_iv(start + 2) - 1; + if (id == -1 || (rval_ref = var_access(var_hash, id)) == NULL) { + return 0; + } + + zval_ptr_dtor(rval); + if (Z_ISUNDEF_P(rval_ref) || (Z_ISREF_P(rval_ref) && Z_ISUNDEF_P(Z_REFVAL_P(rval_ref)))) { + ZVAL_UNDEF(rval); + return 1; + } + if (Z_ISREF_P(rval_ref)) { + ZVAL_COPY(rval, rval_ref); } else { - ZVAL_NULL(rval); + ZVAL_NEW_REF(rval_ref, rval_ref); + ZVAL_COPY(rval, rval_ref); } return 1; } -#line 1437 "ext/standard/var_unserializer.c" +#line 1412 "ext/standard/var_unserializer.c" } -#line 965 "ext/standard/var_unserializer.re" +#line 964 "ext/standard/var_unserializer.re" return 0; diff --git a/ext/standard/var_unserializer.re b/ext/standard/var_unserializer.re index 1f5c7f2eab..f3d17b63f6 100644 --- a/ext/standard/var_unserializer.re +++ b/ext/standard/var_unserializer.re @@ -432,13 +432,12 @@ string_key: static inline int finish_nested_data(UNSERIALIZE_PARAMETER) { - if (*((*p)++) == '}') - return 1; + if (*p >= max || **p != '}') { + return 0; + } -#if SOMETHING_NEW_MIGHT_LEAD_TO_CRASH_ENABLE_IF_YOU_ARE_BRAVE - zval_ptr_dtor(rval); -#endif - return 0; + (*p)++; + return 1; } static inline int object_custom(UNSERIALIZE_PARAMETER, zend_class_entry *ce) -- 2.40.0