[Python-checkins] cpython: merge 3.3 (#20246)
benjamin.peterson
python-checkins at python.org
Tue Jan 14 05:15:13 CET 2014
http://hg.python.org/cpython/rev/ead74e54d68f
changeset: 88457:ead74e54d68f
parent: 88452:753b8b4beee5
user: Benjamin Peterson <benjamin at python.org>
date: Mon Jan 13 23:14:42 2014 -0500
summary:
merge 3.3 (#20246)
files:
Lib/test/test_socket.py | 8 ++++++++
Misc/ACKS | 1 +
Misc/NEWS | 2 ++
Modules/socketmodule.c | 5 +++++
4 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/Lib/test/test_socket.py b/Lib/test/test_socket.py
--- a/Lib/test/test_socket.py
+++ b/Lib/test/test_socket.py
@@ -4683,6 +4683,14 @@
_testRecvFromIntoMemoryview = _testRecvFromIntoArray
+ def testRecvFromIntoSmallBuffer(self):
+ # See issue #20246.
+ buf = bytearray(8)
+ self.assertRaises(ValueError, self.cli_conn.recvfrom_into, buf, 1024)
+
+ def _testRecvFromIntoSmallBuffer(self):
+ self.serv_conn.send(MSG*2048)
+
TIPC_STYPE = 2000
TIPC_LOWER = 200
diff --git a/Misc/ACKS b/Misc/ACKS
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1218,6 +1218,7 @@
Gregory P. Smith
Mark Smith
Roy Smith
+Ryan Smith-Roberts
Rafal Smotrzyk
Eric Snow
Dirk Soede
diff --git a/Misc/NEWS b/Misc/NEWS
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -28,6 +28,8 @@
- Issue #20242: Fixed basicConfig() format strings for the alternative
formatting styles. Thanks to kespindler for the bug report and patch.
+- Issue #20246: Fix buffer overflow in socket.recvfrom_into.
+
- Issues #20206 and #5803: Fix edge case in email.quoprimime.encode where it
truncated lines ending in a character needing encoding but no newline by
using a more efficient algorithm that doesn't have the bug.
diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -2875,6 +2875,11 @@
if (recvlen == 0) {
/* If nbytes was not specified, use the buffer's length */
recvlen = buflen;
+ } else if (recvlen > buflen) {
+ PyBuffer_Release(&pbuf);
+ PyErr_SetString(PyExc_ValueError,
+ "nbytes is greater than the length of the buffer");
+ return NULL;
}
readlen = sock_recvfrom_guts(s, buf, recvlen, flags, &addr);
--
Repository URL: http://hg.python.org/cpython
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