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invalidate input mbuf as soon as it is consumed by the mbuf chain

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to avoid a double free later.
This commit is contained in:
mlelstv 2015-02-07 12:50:25 +00:00
parent 3af45c0517
commit b8751ed3e7
1 changed files with 2 additions and 1 deletions
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3
sys/fs/nfs/common/krpc_subr.c
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@ -44,7 +44,7 @@
#include <sys/cdefs.h>
/* __FBSDID("FreeBSD: head/sys/nfs/krpc_subr.c 248207 2013-03-12 13:42:47Z glebius "); */
__RCSID("$NetBSD: krpc_subr.c,v 1.2 2015/02/07 04:06:52 christos Exp $");
__RCSID("$NetBSD: krpc_subr.c,v 1.3 2015/02/07 12:50:25 mlelstv Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -279,6 +279,7 @@ krpc_call(struct sockaddr_in *sa, u_int prog, u_int vers, u_int func,
*/
mhead = m_gethdr(M_WAITOK, MT_DATA);
mhead->m_next = *data;
*data = NULL;
call = mtod(mhead, struct krpc_call *);
mhead->m_len = sizeof(*call);
bzero((caddr_t)call, sizeof(*call));