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[3.12] gh-106831: Fix NULL check of d2i_SSL_SESSION() result in _ssl.c (GH-106832) (#106835)

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gh-106831: Fix NULL check of d2i_SSL_SESSION() result in _ssl.c (GH-106832)
(cherry picked from commit ebf2c56b33)

Co-authored-by: Nikita Sobolev <mail@sobolevn.me>
This commit is contained in:
Miss Islington (bot) 2023-07-17 13:40:15 -07:00 • committed by GitHub
parent 497bfd5047
commit 2eef81e05e
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2 changed files with 6 additions and 3 deletions
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2
Misc/NEWS.d/next/Library/2023-07-17-21-45-15.gh-issue-106831.RqVq9X.rst Normal file
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@ -0,0 +1,2 @@
Fix potential missing ``NULL`` check of ``d2i_SSL_SESSION`` result in
``_ssl.c``.

7
Modules/_ssl.c
View file

@ -2779,7 +2779,7 @@ _ssl_session_dup(SSL_SESSION *session) {
/* get length */
slen = i2d_SSL_SESSION(session, NULL);
if (slen == 0 || slen > 0xFF00) {
PyErr_SetString(PyExc_ValueError, "i2d() failed.");
PyErr_SetString(PyExc_ValueError, "i2d() failed");
goto error;
}
if ((senc = PyMem_Malloc(slen)) == NULL) {
@ -2788,12 +2788,13 @@ _ssl_session_dup(SSL_SESSION *session) {
}
p = senc;
if (!i2d_SSL_SESSION(session, &p)) {
PyErr_SetString(PyExc_ValueError, "i2d() failed.");
PyErr_SetString(PyExc_ValueError, "i2d() failed");
goto error;
}
const_p = senc;
newsession = d2i_SSL_SESSION(NULL, &const_p, slen);
if (session == NULL) {
if (newsession == NULL) {
PyErr_SetString(PyExc_ValueError, "d2i() failed");
goto error;
}
PyMem_Free(senc);