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From: Markus Armbruster <armbru@redhat.com>
To: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Cc: kwolf@redhat.com, zhang.zhanghailiang@huawei.com,
	qemu-block@nongnu.org, quintela@redhat.com, jsnow@redhat.com,
	qemu-devel@nongnu.org, armbru@redhat.com, den@openvz.org,
	marcandre.lureau@redhat.com, mreitz@redhat.com,
	mdroth@linux.vnet.ibm.com, dgilbert@redhat.com
Subject: Re: [PATCH 6/6] qga/commands-posix: fix use after free of local_err
Date: Tue, 31 Mar 2020 13:46:30 +0200	[thread overview]
Message-ID: <87tv24ycfd.fsf@dusky.pond.sub.org> (raw)
In-Reply-To: <3e28eab6-a7c8-a9b3-84bf-b98e241139cc@virtuozzo.com> (Vladimir Sementsov-Ogievskiy's message of "Wed, 25 Mar 2020 07:28:02 +0300")

Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> writes:

[...]
> I agree that this is a strange function and its logic is weird. But I
> don't know what the logic should be. My patch is still valid to just
> fix obvious use-after-free and possible leak. It doesn't fix the
> logic.

I sketched improved logic elsewhere in this thread, and I can turn that
into a patch.

I can either make it replace Vladimir's patch, or make it go on top.  If
the latter, we can apply just Vladimir's patch for 5.0, and punt mine to
5.1

Got a preference?



  reply	other threads:[~2020-03-31 11:47 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-24 15:36 [PATCH for-5.0 0/6] Several error use-after-free Vladimir Sementsov-Ogievskiy
2020-03-24 15:36 ` [PATCH 1/6] scripts/coccinelle: add error-use-after-free.cocci Vladimir Sementsov-Ogievskiy
2020-03-31  9:00   ` Markus Armbruster
2020-03-31  9:12     ` Vladimir Sementsov-Ogievskiy
2020-03-31 13:14       ` Markus Armbruster
2020-03-31 13:49         ` Vladimir Sementsov-Ogievskiy
2020-03-31 18:38           ` Markus Armbruster
2020-03-31 18:56     ` Peter Maydell
2020-04-01  5:07       ` Markus Armbruster
2020-04-01 11:04         ` Peter Maydell
2020-04-01 14:44           ` Markus Armbruster
2020-04-01 16:12             ` Peter Maydell
2020-04-02  6:55               ` Markus Armbruster
2020-04-02  8:19                 ` Peter Maydell
2020-04-02  8:36                   ` Markus Armbruster
2020-03-24 15:36 ` [PATCH 2/6] block/mirror: fix use after free of local_err Vladimir Sementsov-Ogievskiy
2020-03-24 15:57   ` Eric Blake
2020-03-24 17:10   ` John Snow
2020-03-25 11:11   ` Max Reitz
2020-03-25 11:29     ` Max Reitz
2020-03-25 11:47     ` Vladimir Sementsov-Ogievskiy
2020-03-25 12:00       ` Max Reitz
2020-03-31  9:12         ` Markus Armbruster
2020-03-25 13:01     ` Eric Blake
2020-03-25 12:01   ` Max Reitz
2020-03-24 15:36 ` [PATCH 3/6] dump/win_dump: fix use after free of err Vladimir Sementsov-Ogievskiy
2020-03-30 15:54   ` Markus Armbruster
2020-03-24 15:36 ` [PATCH 4/6] migration/colo: fix use after free of local_err Vladimir Sementsov-Ogievskiy
2020-03-24 19:40   ` Dr. David Alan Gilbert
2020-03-24 15:36 ` [PATCH 5/6] migration/ram: " Vladimir Sementsov-Ogievskiy
2020-03-24 19:41   ` Dr. David Alan Gilbert
2020-03-24 15:36 ` [PATCH 6/6] qga/commands-posix: " Vladimir Sementsov-Ogievskiy
2020-03-24 20:03   ` Eric Blake
2020-03-25  4:28     ` Vladimir Sementsov-Ogievskiy
2020-03-31 11:46       ` Markus Armbruster [this message]
2020-03-31 12:04         ` Vladimir Sementsov-Ogievskiy
2020-03-31  8:13     ` Markus Armbruster
2020-03-24 15:50 ` [PATCH for-5.0 0/6] Several error use-after-free Richard Henderson
2020-04-04 12:18 ` Markus Armbruster

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