diff options
author | Bernd Edlinger <bernd.edlinger@hotmail.de> | 2016-12-21 11:21:36 +0100 |
---|---|---|
committer | Rich Salz <rsalz@openssl.org> | 2017-02-06 16:06:39 -0500 |
commit | 748cb9a17f4f2b77aad816cf658cd4025dc847ee (patch) | |
tree | 28ee694bfe96e0804bd1cf9fb1149a67d2ead2eb /crypto/ex_data.c | |
parent | efe8398649a1d7fc9d84d2818592652e0632a8a8 (diff) |
Combined patch for the more or less obvious issues
Fixed a memory leak in ASN1_digest and ASN1_item_digest.
asn1_template_noexp_d2i call ASN1_item_ex_free(&skfield,...) on error.
Reworked error handling in asn1_item_ex_combine_new:
- call ASN1_item_ex_free and return the correct error code if ASN1_template_new failed.
- dont call ASN1_item_ex_free if ASN1_OP_NEW_PRE failed.
Reworked error handing in x509_name_ex_d2i and x509_name_encode.
Fixed error handling in int_ctx_new and EVP_PKEY_CTX_dup.
Fixed a memory leak in def_get_class if lh_EX_CLASS_ITEM_insert fails due to OOM:
- to figure out if the insertion succeeded, use lh_EX_CLASS_ITEM_retrieve again.
- on error, p will be NULL, and gen needs to be cleaned up again.
int_free_ex_data needs to have a fallback solution if unable to allocate "storage":
- if free_func is non-zero this must be called to clean up all memory.
Fixed error handling in pkey_hmac_copy.
Fixed error handling in ssleay_rand_add and ssleay_rand_bytes.
Fixed error handling in X509_STORE_new.
Fixed a memory leak in ssl3_get_key_exchange.
Check for null pointer in ssl3_write_bytes.
Check for null pointer in ssl3_get_cert_verify.
Fixed a memory leak in ssl_cert_dup.
Fixes #2087 #2094 #2103 #2104 #2105 #2106 #2107 #2108 #2110 #2111 #2112 #2115
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2127)
Diffstat (limited to 'crypto/ex_data.c')
-rw-r--r-- | crypto/ex_data.c | 37 |
1 files changed, 21 insertions, 16 deletions
diff --git a/crypto/ex_data.c b/crypto/ex_data.c index f96a51781a..d947f3edac 100644 --- a/crypto/ex_data.c +++ b/crypto/ex_data.c @@ -331,7 +331,11 @@ static EX_CLASS_ITEM *def_get_class(int class_index) * from the insert will be NULL */ (void)lh_EX_CLASS_ITEM_insert(ex_data, gen); - p = gen; + p = lh_EX_CLASS_ITEM_retrieve(ex_data, &d); + if (p != gen) { + sk_CRYPTO_EX_DATA_FUNCS_free(gen->meth); + OPENSSL_free(gen); + } } } } @@ -499,11 +503,12 @@ static void int_free_ex_data(int class_index, void *obj, CRYPTO_EX_DATA *ad) int mx, i; EX_CLASS_ITEM *item; void *ptr; + CRYPTO_EX_DATA_FUNCS *f; CRYPTO_EX_DATA_FUNCS **storage = NULL; if (ex_data == NULL) - return; + goto err; if ((item = def_get_class(class_index)) == NULL) - return; + goto err; CRYPTO_r_lock(CRYPTO_LOCK_EX_DATA); mx = sk_CRYPTO_EX_DATA_FUNCS_num(item->meth); if (mx > 0) { @@ -515,23 +520,23 @@ static void int_free_ex_data(int class_index, void *obj, CRYPTO_EX_DATA *ad) } skip: CRYPTO_r_unlock(CRYPTO_LOCK_EX_DATA); - if ((mx > 0) && !storage) { - CRYPTOerr(CRYPTO_F_INT_FREE_EX_DATA, ERR_R_MALLOC_FAILURE); - return; - } for (i = 0; i < mx; i++) { - if (storage[i] && storage[i]->free_func) { + if (storage != NULL) + f = storage[i]; + else { + CRYPTO_r_lock(CRYPTO_LOCK_EX_DATA); + f = sk_CRYPTO_EX_DATA_FUNCS_value(item->meth, i); + CRYPTO_r_unlock(CRYPTO_LOCK_EX_DATA); + } + if (f != NULL && f->free_func != NULL) { ptr = CRYPTO_get_ex_data(ad, i); - storage[i]->free_func(obj, ptr, ad, i, - storage[i]->argl, storage[i]->argp); + f->free_func(obj, ptr, ad, i, f->argl, f->argp); } } - if (storage) - OPENSSL_free(storage); - if (ad->sk) { - sk_void_free(ad->sk); - ad->sk = NULL; - } + OPENSSL_free(storage); + err: + sk_void_free(ad->sk); + ad->sk = NULL; } /********************************************************************/ |