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authorNathaniel J. Smith <njs@pobox.com>2017-06-08 11:14:40 (GMT)
committerSerhiy Storchaka <storchaka@gmail.com>2017-06-08 11:14:40 (GMT)
commit854f7ba1d5cbb6a42511beae66c8dbe34f2cbcd3 (patch)
treedc426dfe23a50d700d6f5d403d64dd7c1ed547db /Modules/_ssl.c
parent2c7f927369922562adecd5c25ad55b4bf733f716 (diff)
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[3.6] bpo-30594: Fixed refcounting in newPySSLSocket (GH-1992) (#1994)
If pass a server_hostname= that fails IDNA decoding to SSLContext.wrap_socket or SSLContext.wrap_bio, then the SSLContext object had a spurious Py_DECREF called on it, eventually leading to segfaults. (cherry picked from commit 65ece7ca2366308fa91a39a8dfa255e6bdce3cca)
Diffstat (limited to 'Modules/_ssl.c')
-rw-r--r--Modules/_ssl.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/Modules/_ssl.c b/Modules/_ssl.c
index 2a2c18f..dbfbd44 100644
--- a/Modules/_ssl.c
+++ b/Modules/_ssl.c
@@ -599,6 +599,7 @@ newPySSLSocket(PySSLContext *sslctx, PySocketSockObject *sock,
self->ssl = NULL;
self->Socket = NULL;
self->ctx = sslctx;
+ Py_INCREF(sslctx);
self->shutdown_seen_zero = 0;
self->handshake_done = 0;
self->owner = NULL;
@@ -613,8 +614,6 @@ newPySSLSocket(PySSLContext *sslctx, PySocketSockObject *sock,
self->server_hostname = hostname;
}
- Py_INCREF(sslctx);
-
/* Make sure the SSL error state is initialized */
(void) ERR_get_state();
ERR_clear_error();