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signal SIGSEGV/SEGV_ACCERR if non-executable stack is jumped to

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drochner 2004-02-19 17:02:44 +00:00
parent 8f89c664eb
commit 893de0a21e
1 changed files with 8 additions and 2 deletions
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10
sys/arch/i386/i386/trap.c
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@ -1,4 +1,4 @@
/* $NetBSD: trap.c,v 1.194 2003/11/04 10:33:15 dsl Exp $ */
/* $NetBSD: trap.c,v 1.195 2004/02/19 17:02:44 drochner Exp $ */
/*-
* Copyright (c) 1998, 2000 The NetBSD Foundation, Inc.
@ -75,7 +75,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: trap.c,v 1.194 2003/11/04 10:33:15 dsl Exp $");
__KERNEL_RCSID(0, "$NetBSD: trap.c,v 1.195 2004/02/19 17:02:44 drochner Exp $");
#include "opt_ddb.h"
#include "opt_kgdb.h"
@ -401,6 +401,12 @@ copyfault:
&l->l_addr->u_pcb)) {
goto out;
}
KSI_INIT_TRAP(&ksi);
ksi.ksi_signo = SIGSEGV;
ksi.ksi_trap = type & ~T_USER;
ksi.ksi_addr = (void *)rcr2();
ksi.ksi_code = SEGV_ACCERR;
goto trapsignal;
case T_TSSFLT|T_USER:
case T_SEGNPFLT|T_USER: