Module Name: src
Committed By: riastradh
Date: Fri Aug 28 17:05:32 UTC 2020
Modified Files:
src/sys/dev/usb: usbnet.c
Log Message:
usbnet: Reject buflen>MCLBYTES in usbnet_newbuf.
To generate a diff of this commit:
cvs rdiff -u -r1.38 -r1.39 src/sys/dev/usb/usbnet.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/usb/usbnet.c
diff -u src/sys/dev/usb/usbnet.c:1.38 src/sys/dev/usb/usbnet.c:1.39
--- src/sys/dev/usb/usbnet.c:1.38 Sun Mar 15 23:04:51 2020
+++ src/sys/dev/usb/usbnet.c Fri Aug 28 17:05:32 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: usbnet.c,v 1.38 2020/03/15 23:04:51 thorpej Exp $ */
+/* $NetBSD: usbnet.c,v 1.39 2020/08/28 17:05:32 riastradh Exp $ */
/*
* Copyright (c) 2019 Matthew R. Green
@@ -33,7 +33,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: usbnet.c,v 1.38 2020/03/15 23:04:51 thorpej Exp $");
+__KERNEL_RCSID(0, "$NetBSD: usbnet.c,v 1.39 2020/08/28 17:05:32 riastradh Exp $");
#include <sys/param.h>
#include <sys/kernel.h>
@@ -239,6 +239,9 @@ usbnet_newbuf(size_t buflen)
{
struct mbuf *m;
+ if (buflen > MCLBYTES)
+ return NULL;
+
MGETHDR(m, M_DONTWAIT, MT_DATA);
if (m == NULL)
return NULL;
