Date: Tue, 13 Jul 2010 02:45:19 +0000 (UTC) From: Colin Percival <cperciva@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r209964 - head/sys/kern releng/7.1 releng/7.1/sys/conf releng/7.1/sys/kern releng/7.3 releng/7.3/sys/conf releng/7.3/sys/kern releng/8.0 releng/8.0/sys/conf releng/8.0/sys/kern releng/8... Message-ID: <201007130245.o6D2jJ8g091947@svn.freebsd.org>
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Author: cperciva Date: Tue Jul 13 02:45:17 2010 New Revision: 209964 URL: http://svn.freebsd.org/changeset/base/209964 Log: Correctly copy the M_RDONLY flag when duplicating a reference to an mbuf external buffer. Approved by: so (cperciva) Approved by: re (kensmith) Security: FreeBSD-SA-10:07.mbuf Modified: head/sys/kern/uipc_mbuf.c Changes in other areas also in this revision: Modified: releng/7.1/UPDATING releng/7.1/sys/conf/newvers.sh releng/7.1/sys/kern/uipc_mbuf.c releng/7.3/UPDATING releng/7.3/sys/conf/newvers.sh releng/7.3/sys/kern/uipc_mbuf.c releng/8.0/UPDATING releng/8.0/sys/conf/newvers.sh releng/8.0/sys/kern/uipc_mbuf.c releng/8.1/UPDATING releng/8.1/sys/kern/uipc_mbuf.c stable/7/sys/kern/uipc_mbuf.c stable/8/sys/kern/uipc_mbuf.c Modified: head/sys/kern/uipc_mbuf.c ============================================================================== --- head/sys/kern/uipc_mbuf.c Tue Jul 13 01:24:02 2010 (r209963) +++ head/sys/kern/uipc_mbuf.c Tue Jul 13 02:45:17 2010 (r209964) @@ -302,6 +302,7 @@ mb_dupcl(struct mbuf *n, struct mbuf *m) n->m_ext.ref_cnt = m->m_ext.ref_cnt; n->m_ext.ext_type = m->m_ext.ext_type; n->m_flags |= M_EXT; + n->m_flags |= m->m_flags & M_RDONLY; } /*
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