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3 Commits

Author SHA1 Message Date
Petr Gotthard 11efa7d45b BIO_new_from_core_bio: Fix heap-use-after-free after attach 
The providers have to call up_ref to keep the cbio pointer, just like
the internal bio_prov.c does.

OSSL_STORE_attach passes a cbio pointer to the provider and then calls
ossl_core_bio_free(cbio). If up_ref is not called, the cbio gets
freed way too early.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15163)
 2021-06-25 10:11:29 +10:00
Matt Caswell f12a5690de Add the concept of a child OSSL_LIB_CTX 
Add a child OSSL_LIB_CTX that will mirror the providers loaded into the
parent libctx. This is useful for providers that want to use algorithms
from other providers and just need to inherit the providers used by the
application.

Fixes #14925

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14991)
 2021-05-11 14:56:55 +01:00
Matt Caswell 93954ab050 Add a test for the public core bio API 
Check that reading/writing to a core bio via BIO_new_from_core_bio()
works as expected.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15072)
 2021-05-04 12:00:21 +01:00