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authorCharles-François Natali <neologix@free.fr>2011-08-28 18:10:27 +0200
committerCharles-François Natali <neologix@free.fr>2011-08-28 18:10:27 +0200
commitac7e9e058d8da18d0002f2b9456900c34a13e463 (patch)
tree8b3729f41abc4afd6e0c682f01f6d80b3a09604c /Modules/ossaudiodev.c
parent44c6ef50af9980f33f6373440f0afc9cfa800c86 (diff)
parentaa26b275034c07784c4d64e9a2bc26c742577327 (diff)
downloadcpython-git-ac7e9e058d8da18d0002f2b9456900c34a13e463.tar.gz
Issue #12287: Fix a stack corruption in ossaudiodev module when the FD is
greater than FD_SETSIZE.
Diffstat (limited to 'Modules/ossaudiodev.c')
-rw-r--r--Modules/ossaudiodev.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/Modules/ossaudiodev.c b/Modules/ossaudiodev.c
index 1505731449..95a23b7ea3 100644
--- a/Modules/ossaudiodev.c
+++ b/Modules/ossaudiodev.c
@@ -474,6 +474,11 @@ oss_writeall(oss_audio_t *self, PyObject *args)
if (!PyArg_ParseTuple(args, "y#:write", &cp, &size))
return NULL;
+ if (!_PyIsSelectable_fd(self->fd)) {
+ PyErr_SetString(PyExc_ValueError,
+ "file descriptor out of range for select");
+ return NULL;
+ }
/* use select to wait for audio device to be available */
FD_ZERO(&write_set_fds);
FD_SET(self->fd, &write_set_fds);