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Date: Tue, 8 Feb 2005 10:08:42 -0800
From: Kris Kennaway <kris@obsecurity.org>
To: John Baldwin <jhb@FreeBSD.org>
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cc: sparc64@FreeBSD.org
Subject: M_SUBPROC use-after-free fix (Re: cvs commit:
	src/sys/sparc64/include md_var.h src/sys/sparc64/sparc64 machdep.c
	sys_machdep.c vm_machdep.c)
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On Tue, Feb 08, 2005 at 05:48:03PM +0000, John Baldwin wrote:
> jhb         2005-02-08 17:48:03 UTC
>=20
>   FreeBSD src repository
>=20
>   Modified files:        (Branch: RELENG_5)
>     sys/sparc64/include  md_var.h=20
>     sys/sparc64/sparc64  machdep.c sys_machdep.c vm_machdep.c=20
>   Log:
>   MFC: Add a small API to manage the MD user trap structures including ad=
ding
>   missing locking to close a race that resulted in use-after-free.

Oops, I thought this was already merged.  This explains the 'use after
free' panics that were still being reported on RELENG_5.  Users of SMP
sparc machines should update to incorporate this patch.

Kris

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