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c317d95911
On OpenSSL versions prior to 1.1.0, `EVP_CIPHER_CTX_cleanup` will
dereference its argument regardless of whether it is NULL. This
is not a problem on OpenSSL at or beyond 1.1.0, where
`EVP_CIPHER_CTX_cleanup` (macro to `EVP_CIPHER_CTX_reset`) returns
early upon NULL input.
Move the call to `EVP_CIPHER_CTX_cleanup` under the existing NULL
check in `evp_cipher_cleanup` to avoid the problem.
Introduced with this build-break fix:
* e66f370682
Found in manual testing in an environment with an older OpenSSL.
Signed-off-by: Jon Simons <jon@jonsimons.org>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
_ _ _ _ (_) (_) (_) (_) (_) _ (_) _ _ _ _ _ (_) _ (_) (_) (_)(_) _ (_)(_) (_)(_) (_)(_) _ (_) (_) (_) (_) _ (_) _ (_) (_) (_) (_) (_) (_)(_)(_) (_)(_) (_)(_) (_) (_).org The SSH library ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1* Why ? -_-_-_-_-_ Why not ? :) I've began to work on my own implementation of the ssh protocol because i didn't like the currently public ones. Not any allowed you to import and use the functions as a powerful library, and so i worked on a library-based SSH implementation which was non-existing in the free and open source software world. 2* How/Who ? -_-_-_-_-_-_-_ If you downloaded this file, you must know what it is : a library for accessing ssh client services through C libraries calls in a simple manner. Everybody can use this software under the terms of the LGPL - see the COPYING file If you ask yourself how to compile libssh, please read INSTALL before anything. 3* Where ? -_-_-_-_-_-_ http://www.libssh.org 4* Contributing -_-_-_-_-_-_-_-_-_ Please read the file 'SubmittingPatches' next to this README file. It explains our copyright policy and how you should send patches for upstream inclusion. Have fun and happy libssh hacking! The libssh Team