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From: Dmitry Chagin <dchagin@FreeBSD.org>
Date: Sat, 25 Mar 2017 14:26:45 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r315954 - stable/11/sys/compat/linux
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Author: dchagin
Date: Sat Mar 25 14:26:45 2017
New Revision: 315954
URL: https://svnweb.freebsd.org/changeset/base/315954

Log:
  MFC r315503:
  
  As noted by Roel Bouwman Linux allows a large buffer size than the
  struct ucred size. Fix this.
  
  PR:           102956

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

Modified: stable/11/sys/compat/linux/linux_socket.c
==============================================================================
--- stable/11/sys/compat/linux/linux_socket.c	Sat Mar 25 14:25:20 2017	(r315953)
+++ stable/11/sys/compat/linux/linux_socket.c	Sat Mar 25 14:26:45 2017	(r315954)
@@ -1621,7 +1621,7 @@ linux_getsockopt(struct thread *td, stru
 			/* NOTREACHED */
 			break;
 		case LOCAL_PEERCRED:
-			if (args->optlen != sizeof(lxu))
+			if (args->optlen < sizeof(lxu))
 				return (EINVAL);
 			xulen = sizeof(xu);
 			error = kern_getsockopt(td, args->s, bsd_args.level,