Module Name: src
Committed By: msaitoh
Date: Mon Sep 27 07:13:30 UTC 2021
Modified Files:
src/sys/net: ppp_tty.c
Log Message:
Use unsigned to avoid undefined behavior in pppasyncstart().
Reported-by: syzbot+7c8c7977e2756ac13...@syzkaller.appspotmail.com
To generate a diff of this commit:
cvs rdiff -u -r1.67 -r1.68 src/sys/net/ppp_tty.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/net/ppp_tty.c
diff -u src/sys/net/ppp_tty.c:1.67 src/sys/net/ppp_tty.c:1.68
--- src/sys/net/ppp_tty.c:1.67 Wed Jan 29 04:28:27 2020
+++ src/sys/net/ppp_tty.c Mon Sep 27 07:13:30 2021
@@ -1,4 +1,4 @@
-/* $NetBSD: ppp_tty.c,v 1.67 2020/01/29 04:28:27 thorpej Exp $ */
+/* $NetBSD: ppp_tty.c,v 1.68 2021/09/27 07:13:30 msaitoh Exp $ */
/* Id: ppp_tty.c,v 1.3 1996/07/01 01:04:11 paulus Exp */
/*
@@ -93,7 +93,7 @@
/* from NetBSD: if_ppp.c,v 1.15.2.2 1994/07/28 05:17:58 cgd Exp */
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ppp_tty.c,v 1.67 2020/01/29 04:28:27 thorpej Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ppp_tty.c,v 1.68 2021/09/27 07:13:30 msaitoh Exp $");
#ifdef _KERNEL_OPT
#include "ppp.h"
@@ -168,7 +168,7 @@ static void pppdumpframe(struct ppp_soft
/*
* Does c need to be escaped?
*/
-#define ESCAPE_P(c) (sc->sc_asyncmap[(c) >> 5] & (1 << ((c) & 0x1F)))
+#define ESCAPE_P(c) (sc->sc_asyncmap[(c) >> 5] & (1U << ((c) & 0x1F)))
/*
* Procedures for using an async tty interface for PPP.
