commit b98a36e8f3006512f0fa4d94309fb9918eb8abdd
author Victor Stinner <victor.stinner@gmail.com> Tue Jun 14 16:31:35 2016 +0200
committer Victor Stinner <victor.stinner@gmail.com> Tue Jun 14 16:31:35 2016 +0200
tree 70145e9fc9f6bb7e0698abf2798f23e71a000681
parent fd7f19ea67b0585929e723303c40de9153bba91d

Fix os.urandom() using getrandom() on Linux

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.

Python/random.c

diff --git a/Python/random.c b/Python/random.c
index 07dacfe..b961020 100644
--- a/Python/random.c
+++ b/Python/random.c
@@ -143,7 +143,7 @@
            to 1024 bytes */
         n = Py_MIN(size, 1024);
 #else
-        n = size;
+        n = Py_MIN(size, INT_MAX);
 #endif
 
         errno = 0;