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- don't trash the linked list pointers in the ksiginfo_t reuse case

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[thanks enami]
- fix uninitialized variable in the exit hook.
  [thanks yamt]
This commit is contained in:
christos 2003-09-14 17:39:03 +00:00
parent a82fc36e8b
commit ab8558b680
1 changed files with 8 additions and 4 deletions
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12
sys/kern/kern_sig.c
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@ -1,4 +1,4 @@
/* $NetBSD: kern_sig.c,v 1.152 2003/09/14 06:59:14 christos Exp $ */
/* $NetBSD: kern_sig.c,v 1.153 2003/09/14 17:39:03 christos Exp $ */
/*
* Copyright (c) 1982, 1986, 1989, 1991, 1993
@ -37,7 +37,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_sig.c,v 1.152 2003/09/14 06:59:14 christos Exp $");
__KERNEL_RCSID(0, "$NetBSD: kern_sig.c,v 1.153 2003/09/14 17:39:03 christos Exp $");
#include "opt_ktrace.h"
#include "opt_compat_sunos.h"
@ -166,8 +166,12 @@ ksiginfo_save(struct proc *p, ksiginfo_t *ksi)
return;
*kpool = *ksi;
ksiginfo_put(p, kpool);
} else
} else {
ksiginfo_t *next = ksi->ksi_next, *prev = ksi->ksi_prev;
*kpool = *ksi;
kpool->ksi_next = next;
kpool->ksi_prev = prev;
}
}
/*
@ -178,7 +182,7 @@ ksiginfo_exithook(struct proc *p, void *v)
{
ksiginfo_t *ksi, *hp = p->p_sigctx.ps_siginfo;
if (hp == NULL)
if ((ksi = hp) == NULL)
return;
for (;;) {
pool_put(&ksiginfo_pool, ksi);