Module Name: src
Committed By: martin
Date: Tue Oct 15 19:05:38 UTC 2019
Modified Files:
src/sys/kern [netbsd-9]: sysv_msg.c
Log Message:
Pull up following revision(s) (requested by kamil in ticket #322):
sys/kern/sysv_msg.c: revision 1.76
Avoid -LONG_MIN msgtyp in msgrcv(2) and treat it as LONG_MAX
This logic (found in Linux) avoids undefined behavior.
To generate a diff of this commit:
cvs rdiff -u -r1.74 -r1.74.4.1 src/sys/kern/sysv_msg.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/kern/sysv_msg.c
diff -u src/sys/kern/sysv_msg.c:1.74 src/sys/kern/sysv_msg.c:1.74.4.1
--- src/sys/kern/sysv_msg.c:1.74 Wed Apr 10 10:03:50 2019
+++ src/sys/kern/sysv_msg.c Tue Oct 15 19:05:38 2019
@@ -1,4 +1,4 @@
-/* $NetBSD: sysv_msg.c,v 1.74 2019/04/10 10:03:50 pgoyette Exp $ */
+/* $NetBSD: sysv_msg.c,v 1.74.4.1 2019/10/15 19:05:38 martin Exp $ */
/*-
* Copyright (c) 1999, 2006, 2007 The NetBSD Foundation, Inc.
@@ -50,7 +50,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: sysv_msg.c,v 1.74 2019/04/10 10:03:50 pgoyette Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sysv_msg.c,v 1.74.4.1 2019/10/15 19:05:38 martin Exp $");
#ifdef _KERNEL_OPT
#include "opt_sysv.h"
@@ -1104,6 +1104,7 @@ restart:
*/
if (msgtyp != msghdr->msg_type &&
+ msgtyp != LONG_MIN &&
msghdr->msg_type > -msgtyp)
continue;
