Avoid potential pfree on NULL on OpenSSL errors
Guard against the pointer being NULL before pfreeing upon an error
returned from OpenSSL. Also handle errors from X509_NAME_print_ex
which also can return -1 on memory allocation errors.
Backpatch down to v15 where the code was added.
Author: Sergey Shinderuk <s.shinderuk@postgrespro.ru>
Discussion: https://postgr.es/m/8db5374d-32e0-6abb-d402-40762511eff2@postgrespro.ru
Backpatch-through: v15
Branch
------
REL_15_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/9dc85806d8beb1d4b0cc5461cc3a7d2e44c6e782
Modified Files
--------------
src/backend/libpq/be-secure-openssl.c | 25 +++++++++++++++++--------
1 file changed, 17 insertions(+), 8 deletions(-)