tree 13e4f40768d06e8e960803f52031273cf4b68867
parent 1b658f9afef724d5f6b44ddd4878ff0bad3440a9
author Roman Arutyunyan <arut@nginx.com> 1592241436 +0300
committer Roman Arutyunyan <arut@nginx.com> 1592241436 +0300

OCSP: fixed use-after-free on error.

When validating second and further certificates, ssl callback could be called
twice to report the error.  After the first call client connection is
terminated and its memory is released.  Prior to the second call and in it
released connection memory is accessed.

Errors triggering this behavior:
- failure to create the request
- failure to start resolving OCSP responder name
- failure to start connecting to the OCSP responder

The fix is to rearrange the code to eliminate the second call.