From: Barry Warsaw <barry@python.org>
Date: Wed, 29 Mar 2000 18:30:03 +0000 (+0000)
Subject: eval_code2(): In the extended calling syntax opcodes, you must check
X-Git-Tag: v1.6a1~96
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4961ef70862c62accdcd9870407eda5908839034;p=python

eval_code2(): In the extended calling syntax opcodes, you must check
the return value of PySequence_Length().  If an exception occurred,
the returned length will be -1.  Make sure this doesn't get obscurred,
and that the bogus length isn't used.
---

diff --git a/Python/ceval.c b/Python/ceval.c
index 7a97771327..7a0895f194 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -1636,6 +1636,14 @@ eval_code2(co, globals, locals,
 				break;
 			    }
 			    nstar = PySequence_Length(stararg);
+			    if (nstar < 0) {
+				    if (!PyErr_Occurred)
+					    PyErr_SetString(
+						    PyExc_TypeError,
+						    "len() of unsized object");
+				    x = NULL;
+				    break;
+			    }
 			}
 			if (nk > 0) {
 			    if (kwdict == NULL) {