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From: Dmitry Chagin <dchagin@FreeBSD.org>
Date: Sat, 15 Apr 2017 15:12:25 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r316963 - stable/11/sys/compat/linux
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Author: dchagin
Date: Sat Apr 15 15:12:25 2017
New Revision: 316963
URL: https://svnweb.freebsd.org/changeset/base/316963

Log:
  MFC r314867:
  
  Linux kernel does not export to the user space ipc_perm.mode values
  other than S_IRWXUGO (0777).

Modified:
  stable/11/sys/compat/linux/linux_ipc.c
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/sys/compat/linux/linux_ipc.c
==============================================================================
--- stable/11/sys/compat/linux/linux_ipc.c	Sat Apr 15 15:11:23 2017	(r316962)
+++ stable/11/sys/compat/linux/linux_ipc.c	Sat Apr 15 15:12:25 2017	(r316963)
@@ -38,6 +38,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/msg.h>
 #include <sys/sem.h>
 #include <sys/shm.h>
+#include <sys/stat.h>
 
 #include "opt_compat.h"
 
@@ -151,7 +152,7 @@ bsd_to_linux_ipc_perm(struct ipc_perm *b
 	lpp->gid = bpp->gid;
 	lpp->cuid = bpp->cuid;
 	lpp->cgid = bpp->cgid;
-	lpp->mode = bpp->mode;
+	lpp->mode = bpp->mode & (S_IRWXU|S_IRWXG|S_IRWXO);
 	lpp->seq = bpp->seq;
 }