[Python-checkins] cpython (merge 3.5 -> default): Merge 3.5 (os.urandom, issue #27278)

[victor.stinner]

https://hg.python.org/cpython/rev/0d39bd9028e8
changeset:   102034:0d39bd9028e8
parent:      102032:1f376758837d
parent:      102033:e028e86a5b73
user:        Victor Stinner <victor.stinner at gmail.com>
date:        Tue Jun 14 16:33:17 2016 +0200
summary:
  Merge 3.5 (os.urandom, issue #27278)

files:
  Misc/NEWS       |  4 ++++
  Python/random.c |  2 +-
  2 files changed, 5 insertions(+), 1 deletions(-)


diff --git a/Misc/NEWS b/Misc/NEWS
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,10 @@
 Library
 -------
 
+- Issue #27278: Fix os.urandom() implementation using getrandom() on Linux.
+  Truncate size to INT_MAX and loop until we collected enough random bytes,
+  instead of casting a directly Py_ssize_t to int.
+
 - Issue #16864: sqlite3.Cursor.lastrowid now supports REPLACE statement.
   Initial patch by Alex LordThorsen.
 
diff --git a/Python/random.c b/Python/random.c
--- a/Python/random.c
+++ b/Python/random.c
@@ -146,7 +146,7 @@
            to 1024 bytes */
         n = Py_MIN(size, 1024);
 #else
-        n = size;
+        n = Py_MIN(size, INT_MAX);
 #endif
 
         errno = 0;

-- 
Repository URL: https://hg.python.org/cpython