| From: | Daniel Gustafsson <dgustafsson(at)postgresql(dot)org> |
|---|---|
| To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
| Subject: | pgsql: Avoid potential pfree on NULL on OpenSSL errors |
| Date: | 2023-09-22 09:27:12 |
| Message-ID: | E1qjcRM-005HYT-96@gemulon.postgresql.org |
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| Lists: | pgsql-committers |
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(dot)shinderuk(at)postgrespro(dot)ru>
Discussion: https://postgr.es/m/8db5374d-32e0-6abb-d402-40762511eff2@postgrespro.ru
Backpatch-through: v15
Branch
------
REL_16_STABLE
Details
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https://git.postgresql.org/pg/commitdiff/f720875a4670f94c6d8acd288a2a62c7cabb92dd
Modified Files
--------------
src/backend/libpq/be-secure-openssl.c | 25 +++++++++++++++++--------
1 file changed, 17 insertions(+), 8 deletions(-)
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