M_SUBPROC use-after-free fix (Re: cvs commit:
src/sys/sparc64/include md_var.h src/sys/sparc64/sparc64 machdep.c
kris at obsecurity.org
Tue Feb 8 10:08:43 PST 2005
On Tue, Feb 08, 2005 at 05:48:03PM +0000, John Baldwin wrote:
> jhb 2005-02-08 17:48:03 UTC
> FreeBSD src repository
> Modified files: (Branch: RELENG_5)
> sys/sparc64/include md_var.h
> sys/sparc64/sparc64 machdep.c sys_machdep.c vm_machdep.c
> MFC: Add a small API to manage the MD user trap structures including adding
> 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.
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