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fix(message): prevent segfault on invalid UTF-8 by meshchellomishel · Pull Request #624 · python-ldap/python-ldap · GitHub

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fix(message): prevent segfault on invalid UTF-8 #624

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fix(message): prevent segfault on invalid UTF-8 #624

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19 changes: 19 additions & 0 deletions Modules/message.c
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Original file line number Diff line number Diff line change
Expand Up @@ -90,6 +90,17 @@ LDAPmessage_to_python(LDAP *ld, LDAPMessage *m, int add_ctrls,
struct berval **bvals;

pyattr = PyUnicode_FromString(attr);
if (pyattr == NULL) {
Py_DECREF(attrdict);
Py_DECREF(result);
if (ber != NULL)
ber_free(ber, 0);
ldap_msgfree(m);
ldap_memfree(attr);
ldap_memfree(dn);
Py_XDECREF(pyctrls);
return NULL;
}

bvals = ldap_get_values_len(ld, entry, attr);

Expand Down Expand Up @@ -217,6 +228,14 @@ LDAPmessage_to_python(LDAP *ld, LDAPMessage *m, int add_ctrls,
for (i = 0; refs[i] != NULL; i++) {
/* A referal is a distinguishedName => unicode */
PyObject *refstr = PyUnicode_FromString(refs[i]);
if (refstr == NULL) {
Py_DECREF(reflist);
Py_DECREF(result);
ber_memvfree((void **)refs);
ldap_msgfree(m);
Py_XDECREF(pyctrls);
return NULL;
}

PyList_Append(reflist, refstr);
Py_DECREF(refstr);
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