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Only kmem_free() the filename if we have one.

This commit is contained in:
elad 2009-12-25 22:57:54 +00:00
parent 066035a515
commit d67e78d45a
1 changed files with 6 additions and 3 deletions
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9
sys/kern/kern_verifiedexec.c
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@ -1,4 +1,4 @@
/* $NetBSD: kern_verifiedexec.c,v 1.118 2009/11/07 07:27:49 cegger Exp $ */
/* $NetBSD: kern_verifiedexec.c,v 1.119 2009/12/25 22:57:54 elad Exp $ */
/*-
* Copyright (c) 2005, 2006 Elad Efrat <elad@NetBSD.org>
@ -29,7 +29,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_verifiedexec.c,v 1.118 2009/11/07 07:27:49 cegger Exp $");
__KERNEL_RCSID(0, "$NetBSD: kern_verifiedexec.c,v 1.119 2009/12/25 22:57:54 elad Exp $");
#include "opt_veriexec.h"
@ -913,9 +913,12 @@ veriexec_renamechk(struct lwp *l, struct vnode *fromvp, const char *fromname,
* entries so we can destroy the object.
*/
kmem_free(vfe->filename, vfe->filename_len);
if (vfe->filename_len > 0)
kmem_free(vfe->filename, vfe->filename_len);
vfe->filename = NULL;
vfe->filename_len = 0;
rw_downgrade(&veriexec_op_lock);
}