[src/netbsd-9]: src/sys/nfs Pull up following revision(s) (requested by hannk...

[martin <martin%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/cf87b5f1c194
branches:  netbsd-9
changeset: 372690:cf87b5f1c194
user:      martin <martin%NetBSD.org@localhost>
date:      Tue Dec 20 09:56:28 2022 +0000

description:
Pull up following revision(s) (requested by hannken in ticket #1555):

        sys/nfs/nfs_srvsocket.c: revision 1.5

When partitioning a mbuf chain with m_split() the last mbuf of the returned
tail chain is not necessarily the same as the last mbuf of the initial chain.

Always set "slp->ns_rawend" to the last mbuf of the tail chain to prevent
mbuf leaks and corruption.

diffstat:

 sys/nfs/nfs_srvsocket.c |  9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)

diffs (30 lines):

diff -r 8c19dc13f644 -r cf87b5f1c194 sys/nfs/nfs_srvsocket.c
--- a/sys/nfs/nfs_srvsocket.c   Wed Dec 14 15:41:43 2022 +0000
+++ b/sys/nfs/nfs_srvsocket.c   Tue Dec 20 09:56:28 2022 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: nfs_srvsocket.c,v 1.4 2009/09/03 20:59:12 tls Exp $    */
+/*     $NetBSD: nfs_srvsocket.c,v 1.4.68.1 2022/12/20 09:56:28 martin Exp $    */
 
 /*
  * Copyright (c) 1989, 1991, 1993, 1995
@@ -39,7 +39,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: nfs_srvsocket.c,v 1.4 2009/09/03 20:59:12 tls Exp $");
+__KERNEL_RCSID(0, "$NetBSD: nfs_srvsocket.c,v 1.4.68.1 2022/12/20 09:56:28 martin Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -323,8 +323,9 @@
                        }
                        m_claimm(recm, &nfs_mowner);
                        slp->ns_raw = m;
-                       if (m->m_next == NULL)
-                               slp->ns_rawend = m;
+                       while (m->m_next)
+                               m = m->m_next;
+                       slp->ns_rawend = m;
                        slp->ns_cc -= slp->ns_reclen;
                        slp->ns_reclen = 0;
                } else {