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Don't crash in copyin/copyout when a NULL pointer is passed.

This commit is contained in:
mlelstv 2024-02-25 14:35:31 +00:00
parent 19cd387c48
commit efe4686862
1 changed files with 3 additions and 3 deletions
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6
sys/arch/virt68k/virt68k/trap.c
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@ -1,4 +1,4 @@
/* $NetBSD: trap.c,v 1.2 2024/01/20 00:15:33 thorpej Exp $ */
/* $NetBSD: trap.c,v 1.3 2024/02/25 14:35:31 mlelstv Exp $ */
/*
* Copyright (c) 1988 University of Utah.
@ -39,7 +39,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: trap.c,v 1.2 2024/01/20 00:15:33 thorpej Exp $");
__KERNEL_RCSID(0, "$NetBSD: trap.c,v 1.3 2024/02/25 14:35:31 mlelstv Exp $");
#include "opt_ddb.h"
#include "opt_execfmt.h"
@ -554,7 +554,7 @@ trap(struct frame *fp, int type, unsigned int code, unsigned int v)
va = trunc_page((vaddr_t)v);
if (map == kernel_map && va == 0) {
if (map == kernel_map && va == 0 && onfault == 0) {
printf("trap: bad kernel %s access at 0x%x\n",
(ftype & VM_PROT_WRITE) ? "read/write" :
"read", v);