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Fix potential NULL pointer access.

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This commit is contained in:
elad 2005-06-13 21:09:49 +00:00
parent 49d0a3504e
commit 1e323dd70c
1 changed files with 4 additions and 3 deletions
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7
sys/kern/kern_verifiedexec.c
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@ -1,4 +1,4 @@
/* $NetBSD: kern_verifiedexec.c,v 1.22 2005/06/13 20:52:13 elad Exp $ */
/* $NetBSD: kern_verifiedexec.c,v 1.23 2005/06/13 21:09:49 elad Exp $ */
/*-
* Copyright 2005 Elad Efrat <elad@bsd.org.il>
@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_verifiedexec.c,v 1.22 2005/06/13 20:52:13 elad Exp $");
__KERNEL_RCSID(0, "$NetBSD: kern_verifiedexec.c,v 1.23 2005/06/13 21:09:49 elad Exp $");
#include <sys/param.h>
#include <sys/mount.h>
@ -396,7 +396,7 @@ veriexec_verify(struct proc *p, struct vnode *vp, struct vattr *va,
case VERIEXEC_INDIRECT:
break;
case VERIEXEC_FILE:
if (vp->vhe->type != VERIEXEC_FILE) {
if ((vp->vhe != NULL) && (vp->vhe->type != VERIEXEC_FILE)) {
veriexec_report("Execution of 'FILE' entry.",
name, va, p, REPORT_NOVERBOSE,
REPORT_ALARM, REPORT_NOPANIC);
@ -404,6 +404,7 @@ veriexec_verify(struct proc *p, struct vnode *vp, struct vattr *va,
if (veriexec_strict > 1)
return (EPERM);
}
break;
}