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Date:      Thu, 06 Jul 2017 11:17:34 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-net@FreeBSD.org
Subject:   [Bug 220076] [patch] [panic] [netgraph] repeatable kernel panic due to a race in ng_iface(4)
Message-ID:  <bug-220076-2472-O0DASKvpYa@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-220076-2472@https.bugs.freebsd.org/bugzilla/>
References:  <bug-220076-2472@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D220076

Eugene Grosbein <eugen@freebsd.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #183627|0                           |1
        is obsolete|                            |

--- Comment #8 from Eugene Grosbein <eugen@freebsd.org> ---
Created attachment 184119
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D184119&action=
=3Dedit
protect ng_iface private data with rmlock

Use reader lock to additionally protect access to ng_iface private data thr=
ough
`findhook' method to avoid usage of hook being removed by another kernel th=
read
in parallel.

--=20
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