Optimization and safety precaution in find_issuer() of x509_vfy.c: candidate issuer cert cannot be the same as the subject cert 'x'
Optimization and safety precaution in find_issuer() of x509_vfy.c:
candidate issuer cert cannot be the same as the subject cert 'x'

Reviewed-by: Viktor Dukhovni <86faeb3e05561b856666236e198c27e698275e82@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10587)

openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl