php-pecl-redis: fix memory corruption with PHP 5.6

1 files changed, 363 insertions, 0 deletions

diff --git a/redis-php56.patch b/redis-php56.patch
new file mode 100644
index 0000000..f97af12
--- /dev/null
+++ b/redis-php56.patch
@@ -0,0 +1,363 @@
+From 5520be1042d1b97728a3f8e04ed3c5a6fd0da9f8 Mon Sep 17 00:00:00 2001
+From: Remi Collet <fedora@famillecollet.com>
+Date: Thu, 20 Mar 2014 13:48:04 +0100
+Subject: [PATCH 2/7] Fix memory corruption observed with PHP 5.6.0-dev
+
+---
+ library.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/library.c b/library.c
+index e4ad72b..6525ade 100644
+--- a/library.c
++++ b/library.c
+@@ -1560,6 +1560,11 @@ PHPAPI void redis_free_socket(RedisSock *redis_sock)
+ 					ZVAL_STRINGL(z_copy, "Array", 5, 1);
+ 					break;
+ 
++				case IS_NULL:
++					MAKE_STD_ZVAL(z_copy);
++					ZVAL_STRINGL(z_copy, "", 0, 1);
++					break;
++
+ 				default: /* copy */
+ 					MAKE_STD_ZVAL(z_copy);
+ 					*z_copy = *z;
+-- 
+1.8.5.5
+
+
+From 8805b133b9b1d0bf18a59ef97d95ca8c3a1ab9a7 Mon Sep 17 00:00:00 2001
+From: Remi Collet <fedora@famillecollet.com>
+Date: Thu, 20 Mar 2014 13:49:26 +0100
+Subject: [PATCH 3/7] redis.c:7022:13: warning: 'keyword' may be used
+ uninitialized in this function (mostly to make gcc happy)
+
+---
+ redis.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/redis.c b/redis.c
+index 4788480..c17bab1 100644
+--- a/redis.c
++++ b/redis.c
+@@ -7014,6 +7014,7 @@ PHPAPI void generic_unsubscribe_cmd(INTERNAL_FUNCTION_PARAMETERS, char *unsub_cm
+             keyword = "HSCAN";
+             break;
+         case TYPE_ZSCAN:
++		default:
+             keyword = "ZSCAN";
+             break;
+     }
+-- 
+1.8.5.5
+
+
+From 7634db4283409d1fc113596d00a12e531d05c13f Mon Sep 17 00:00:00 2001
+From: Remi Collet <fedora@famillecollet.com>
+Date: Thu, 20 Mar 2014 13:54:53 +0100
+Subject: [PATCH 4/7] Fix: library.c:743:78: warning: unused variable 'p2'
+ (PLEASE CHECK)
+
+---
+ library.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/library.c b/library.c
+index 6525ade..680debd 100644
+--- a/library.c
++++ b/library.c
+@@ -774,8 +774,8 @@ PHPAPI void redis_client_list_reply(INTERNAL_FUNCTION_PARAMETERS, RedisSock *red
+ 
+                     // Treat numbers as numbers, strings as strings
+                     is_numeric = 1;
+-                    for(p2 = value; *p; ++p) {
+-                        if(*p < '0' || *p > '9') {
++                    for(p2 = value; *p2; ++p2) {
++                        if(*p2 < '0' || *p2 > '9') {
+                             is_numeric = 0;
+                             break;
+                         }
+-- 
+1.8.5.5
+
+
+From 47ddcf75fd3582d50937bf90750b67531db5d5c8 Mon Sep 17 00:00:00 2001
+From: Remi Collet <fedora@famillecollet.com>
+Date: Thu, 20 Mar 2014 13:56:11 +0100
+Subject: [PATCH 5/7] Fix ibrary.c:1541:9: warning: unused variable 'sz' +
+ 'val8'
+
+---
+ library.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/library.c b/library.c
+index 680debd..f02f559 100644
+--- a/library.c
++++ b/library.c
+@@ -1538,8 +1538,10 @@ PHPAPI void redis_free_socket(RedisSock *redis_sock)
+ #endif
+ 	smart_str sstr = {0};
+ 	zval *z_copy;
++#ifdef HAVE_REDIS_IGBINARY
+ 	size_t sz;
+ 	uint8_t *val8;
++#endif
+ 
+ 	switch(redis_sock->serializer) {
+ 		case REDIS_SERIALIZER_NONE:
+-- 
+1.8.5.5
+
+
+From d74b0d27f347d6fc77c8310259f8462890d38f9b Mon Sep 17 00:00:00 2001
+From: Remi Collet <fedora@famillecollet.com>
+Date: Thu, 20 Mar 2014 13:56:49 +0100
+Subject: [PATCH 6/7] Fix warning: 'klen' may be used uninitialized in this
+ function
+
+---
+ library.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/library.c b/library.c
+index f02f559..57d413e 100644
+--- a/library.c
++++ b/library.c
+@@ -743,7 +743,7 @@ PHPAPI void redis_client_list_reply(INTERNAL_FUNCTION_PARAMETERS, RedisSock *red
+     char *p = resp, *lpos = resp, *kpos = NULL, *vpos = NULL, *p2, *key, *value;
+ 
+     // Key length, done flag
+-    int klen, done = 0, is_numeric;
++    int klen = 0, done = 0, is_numeric;
+ 
+     // While we've got more to parse
+     while(!done) {
+-- 
+1.8.5.5
+
+
+From b9a16b5ad5d8c80eac53f530f37e89761ec2c720 Mon Sep 17 00:00:00 2001
+From: Remi Collet <fedora@famillecollet.com>
+Date: Thu, 20 Mar 2014 15:06:40 +0100
+Subject: [PATCH 7/7] revert previous, and better fix for memory corruption
+ (STR_FREE available since 5.0)
+
+---
+ library.c |  5 -----
+ redis.c   | 47 ++++++++++++++++++++++++-----------------------
+ 2 files changed, 24 insertions(+), 28 deletions(-)
+
+diff --git a/library.c b/library.c
+index 57d413e..b0f15db 100644
+--- a/library.c
++++ b/library.c
+@@ -1562,11 +1562,6 @@ PHPAPI void redis_free_socket(RedisSock *redis_sock)
+ 					ZVAL_STRINGL(z_copy, "Array", 5, 1);
+ 					break;
+ 
+-				case IS_NULL:
+-					MAKE_STD_ZVAL(z_copy);
+-					ZVAL_STRINGL(z_copy, "", 0, 1);
+-					break;
+-
+ 				default: /* copy */
+ 					MAKE_STD_ZVAL(z_copy);
+ 					*z_copy = *z;
+diff --git a/redis.c b/redis.c
+index c17bab1..8c12657 100644
+--- a/redis.c
++++ b/redis.c
+@@ -990,7 +990,7 @@ PHPAPI int redis_connect(INTERNAL_FUNCTION_PARAMETERS, int persistent) {
+ 
+     /* Free our key or value if we prefixed/serialized */
+     if(key_free) efree(key);
+-    if(val_free) efree(val);
++    if(val_free) STR_FREE(val);
+ 
+     /* Kick off the command */
+     REDIS_PROCESS_REQUEST(redis_sock, cmd, cmd_len);
+@@ -1023,7 +1023,7 @@ PHPAPI void redis_generic_setex(INTERNAL_FUNCTION_PARAMETERS, char *keyword) {
+     val_free = redis_serialize(redis_sock, z_value, &val, &val_len TSRMLS_CC);
+ 	key_free = redis_key_prefix(redis_sock, &key, &key_len TSRMLS_CC);
+     cmd_len = redis_cmd_format_static(&cmd, keyword, "sls", key, key_len, expire, val, val_len);
+-    if(val_free) efree(val);
++    if(val_free) STR_FREE(val);
+     if(key_free) efree(key);
+ 
+ 	REDIS_PROCESS_REQUEST(redis_sock, cmd, cmd_len);
+@@ -1072,7 +1072,7 @@ PHPAPI void redis_generic_setex(INTERNAL_FUNCTION_PARAMETERS, char *keyword) {
+     val_free = redis_serialize(redis_sock, z_value, &val, &val_len TSRMLS_CC);
+ 	key_free = redis_key_prefix(redis_sock, &key, &key_len TSRMLS_CC);
+     cmd_len = redis_cmd_format_static(&cmd, "SETNX", "ss", key, key_len, val, val_len);
+-    if(val_free) efree(val);
++    if(val_free) STR_FREE(val);
+     if(key_free) efree(key);
+ 
+     REDIS_PROCESS_REQUEST(redis_sock, cmd, cmd_len);
+@@ -1110,7 +1110,7 @@ PHPAPI void redis_generic_setex(INTERNAL_FUNCTION_PARAMETERS, char *keyword) {
+     val_free = redis_serialize(redis_sock, z_value, &val, &val_len TSRMLS_CC);
+ 	key_free = redis_key_prefix(redis_sock, &key, &key_len TSRMLS_CC);
+     cmd_len = redis_cmd_format_static(&cmd, "GETSET", "ss", key, key_len, val, val_len);
+-    if(val_free) efree(val);
++    if(val_free) STR_FREE(val);
+     if(key_free) efree(key);
+ 
+ 	REDIS_PROCESS_REQUEST(redis_sock, cmd, cmd_len);
+@@ -1928,7 +1928,7 @@ PHPAPI void redis_unwatch_response(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redi
+     val_free = redis_serialize(redis_sock, z_value, &val, &val_len TSRMLS_CC);
+ 	key_free = redis_key_prefix(redis_sock, &key, &key_len TSRMLS_CC);
+     cmd_len = redis_cmd_format_static(&cmd, keyword, "ss", key, key_len, val, val_len);
+-    if(val_free) efree(val);
++    if(val_free) STR_FREE(val);
+     if(key_free) efree(key);
+ 
+ 	REDIS_PROCESS_REQUEST(redis_sock, cmd, cmd_len);
+@@ -2004,9 +2004,9 @@ PHPAPI void redis_unwatch_response(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redi
+         val_free = redis_serialize(redis_sock, z_value, &val, &val_len TSRMLS_CC);
+         pivot_free = redis_serialize(redis_sock, z_pivot, &pivot, &pivot_len TSRMLS_CC);
+         cmd_len = redis_cmd_format_static(&cmd, "LINSERT", "ssss", key, key_len, position, position_len, pivot, pivot_len, val, val_len);
+-        if(val_free) efree(val);
++        if(val_free) STR_FREE(val);
+ 		if(key_free) efree(key);
+-        if(pivot_free) efree(pivot);
++        if(pivot_free) STR_FREE(pivot);
+ 
+ 		REDIS_PROCESS_REQUEST(redis_sock, cmd, cmd_len); 
+ 		IF_ATOMIC() { 
+@@ -2178,7 +2178,7 @@ PHPAPI void redis_unwatch_response(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redi
+     val_free = redis_serialize(redis_sock, z_value, &val, &val_len TSRMLS_CC);
+ 	key_free = redis_key_prefix(redis_sock, &key, &key_len TSRMLS_CC);
+     cmd_len = redis_cmd_format_static(&cmd, "LREM", "sds", key, key_len, count, val, val_len);
+-    if(val_free) efree(val);
++    if(val_free) STR_FREE(val);
+     if(key_free) efree(key);
+ 
+ 	REDIS_PROCESS_REQUEST(redis_sock, cmd, cmd_len);
+@@ -2382,7 +2382,7 @@ PHPAPI void redis_unwatch_response(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redi
+ 	src_free = redis_key_prefix(redis_sock, &src, &src_len TSRMLS_CC);
+ 	dst_free = redis_key_prefix(redis_sock, &dst, &dst_len TSRMLS_CC);
+     cmd_len = redis_cmd_format_static(&cmd, "SMOVE", "sss", src, src_len, dst, dst_len, val, val_len);
+-    if(val_free) efree(val);
++    if(val_free) STR_FREE(val);
+     if(src_free) efree(src);
+     if(dst_free) efree(dst);
+ 
+@@ -2488,7 +2488,7 @@ PHPAPI void redis_unwatch_response(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redi
+     val_free = redis_serialize(redis_sock, z_value, &val, &val_len TSRMLS_CC);
+ 	key_free = redis_key_prefix(redis_sock, &key, &key_len TSRMLS_CC);
+     cmd_len = redis_cmd_format_static(&cmd, "SISMEMBER", "ss", key, key_len, val, val_len);
+-    if(val_free) efree(val);
++    if(val_free) STR_FREE(val);
+     if(key_free) efree(key);
+ 
+ 	REDIS_PROCESS_REQUEST(redis_sock, cmd, cmd_len);
+@@ -2716,7 +2716,7 @@ PHPAPI int generic_multiple_args_cmd(INTERNAL_FUNCTION_PARAMETERS, char *keyword
+ 	/* cleanup prefixed keys. */
+ 	for(i = 0; i < real_argc + (has_timeout?-1:0); ++i) {
+ 		if(keys_to_free[i])
+-			efree(keys[i]);
++			STR_FREE(keys[i]);
+ 	}
+ 	if(single_array && has_timeout) { /* cleanup string created to contain timeout value */
+ 		efree(keys[real_argc-1]);
+@@ -3362,7 +3362,7 @@ PHPAPI void generic_expire_cmd(INTERNAL_FUNCTION_PARAMETERS, char *keyword, int
+     val_free = redis_serialize(redis_sock, z_value, &val, &val_len TSRMLS_CC);
+ 	key_free = redis_key_prefix(redis_sock, &key, &key_len TSRMLS_CC);
+     cmd_len = redis_cmd_format_static(&cmd, "LSET", "sds", key, key_len, index, val, val_len);
+-    if(val_free) efree(val);
++    if(val_free) STR_FREE(val);
+     if(key_free) efree(key);
+ 
+ 	REDIS_PROCESS_REQUEST(redis_sock, cmd, cmd_len);
+@@ -3782,7 +3782,7 @@ PHPAPI void generic_ttl(INTERNAL_FUNCTION_PARAMETERS, char *keyword) {
+ 				memcpy(p, _NL, 2); p += 2;
+ 			}
+ 
+-			if(val_free) efree(val);
++			if(val_free) STR_FREE(val);
+ 			if(key_free) efree(key);
+ 		}
+ 	}
+@@ -3964,7 +3964,7 @@ PHPAPI void common_rpoplpush(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock
+ 		smart_str_appendl(&buf, val, val_len);
+ 		smart_str_appendl(&buf, _NL, sizeof(_NL) - 1);
+ 
+-		if(val_free) efree(val);
++		if(val_free) STR_FREE(val);
+ 	}
+ 
+ 	/* end string */
+@@ -4361,7 +4361,7 @@ PHPAPI void common_rpoplpush(INTERNAL_FUNCTION_PARAMETERS, RedisSock *redis_sock
+     val_free = redis_serialize(redis_sock, z_value, &val, &val_len TSRMLS_CC);
+ 	key_free = redis_key_prefix(redis_sock, &key, &key_len TSRMLS_CC);
+     cmd_len = redis_cmd_format_static(&cmd, "ZSCORE", "ss", key, key_len, val, val_len);
+-    if(val_free) efree(val);
++    if(val_free) STR_FREE(val);
+     if(key_free) efree(key);
+ 
+ 	REDIS_PROCESS_REQUEST(redis_sock, cmd, cmd_len);
+@@ -4394,7 +4394,7 @@ PHPAPI void generic_rank_method(INTERNAL_FUNCTION_PARAMETERS, char *keyword, int
+     val_free = redis_serialize(redis_sock, z_value, &val, &val_len TSRMLS_CC);
+ 	key_free = redis_key_prefix(redis_sock, &key, &key_len TSRMLS_CC);
+     cmd_len = redis_cmd_format_static(&cmd, keyword, "ss", key, key_len, val, val_len);
+-    if(val_free) efree(val);
++    if(val_free) STR_FREE(val);
+     if(key_free) efree(key);
+ 
+ 	REDIS_PROCESS_REQUEST(redis_sock, cmd, cmd_len);
+@@ -4444,7 +4444,7 @@ PHPAPI void generic_incrby_method(INTERNAL_FUNCTION_PARAMETERS, char *keyword, i
+     val_free = redis_serialize(redis_sock, z_value, &val, &val_len TSRMLS_CC);
+ 	key_free = redis_key_prefix(redis_sock, &key, &key_len TSRMLS_CC);
+     cmd_len = redis_cmd_format_static(&cmd, keyword, "sfs", key, key_len, add, val, val_len);
+-    if(val_free) efree(val);
++    if(val_free) STR_FREE(val);
+     if(key_free) efree(key);
+ 
+ 	REDIS_PROCESS_REQUEST(redis_sock, cmd, cmd_len);
+@@ -4659,7 +4659,7 @@ PHPAPI void generic_z_command(INTERNAL_FUNCTION_PARAMETERS, char *command, int c
+     val_free = redis_serialize(redis_sock, z_value, &val, &val_len TSRMLS_CC);
+ 	key_free = redis_key_prefix(redis_sock, &key, &key_len TSRMLS_CC);
+     cmd_len = redis_cmd_format_static(&cmd, kw, "sss", key, key_len, member, member_len, val, val_len);
+-    if(val_free) efree(val);
++    if(val_free) STR_FREE(val);
+     if(key_free) efree(key);
+ 
+ 	REDIS_PROCESS_REQUEST(redis_sock, cmd, cmd_len);
+@@ -5179,7 +5179,7 @@ PHPAPI void array_zip_values_and_scores(RedisSock *redis_sock, zval *z_tab, int
+         redis_cmd_append_sstr(&set_cmds, hkey, hkey_len - 1);
+         redis_cmd_append_sstr(&set_cmds, hval, hval_len);
+ 
+-        if(hval_free) efree(hval);
++        if(hval_free) STR_FREE(hval);
+     }
+ 
+     // Now construct the entire command
+@@ -6685,7 +6685,7 @@ PHPAPI void generic_unsubscribe_cmd(INTERNAL_FUNCTION_PARAMETERS, char *unsub_cm
+     RedisSock *redis_sock;
+     zval *z_val;
+     char *val;
+-    int val_free, val_len;
++    int val_len;
+ 
+     // Parse arguments
+     if(zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Oz",
+@@ -6700,10 +6700,11 @@ PHPAPI void generic_unsubscribe_cmd(INTERNAL_FUNCTION_PARAMETERS, char *unsub_cm
+     }
+ 
+     // Serialize, which will return a value even if no serializer is set
+-    val_free = redis_serialize(redis_sock, z_val, &val, &val_len TSRMLS_CC);
++    redis_serialize(redis_sock, z_val, &val, &val_len TSRMLS_CC);
+ 
+-    // Return serialized value.  Tell PHP to make a copy if redis_serialize didn't.
+-    RETURN_STRINGL(val, val_len, !val_free);
++    // Return serialized value.  Tell PHP to make a copy as some can be interned.
++    RETVAL_STRINGL(val, val_len, 1);
++    STR_FREE(val);
+ }
+ 
+ /*
+-- 
+1.8.5.5
+