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From: Jens Freimann <jfreimann@redhat.com>
To: Markus Armbruster <armbru@redhat.com>
Cc: "Kevin Wolf" <kwolf@redhat.com>,
	"Corey Minyard" <cminyard@mvista.com>,
	vsementsov@virtuozzo.com,
	"Daniel P. Berrangé" <berrange@redhat.com>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	"Nishanth Aravamudan" <naravamudan@digitalocean.com>,
	"Cornelia Huck" <cohuck@redhat.com>,
	"David Hildenbrand" <david@redhat.com>,
	qemu-devel@nongnu.org, "Michael Roth" <mdroth@linux.vnet.ibm.com>,
	"Halil Pasic" <pasic@linux.ibm.com>,
	"Christian Borntraeger" <borntraeger@de.ibm.com>,
	"Stefan Hajnoczi" <stefanha@redhat.com>,
	"Igor Mammedov" <imammedo@redhat.com>
Subject: Re: [PATCH 00/21] Error handling fixes, may contain 4.2 material
Date: Mon, 2 Dec 2019 12:24:21 +0100	[thread overview]
Message-ID: <20191202112421.nqwj4bycswnqjdym@jenstp.localdomain> (raw)
In-Reply-To: <20191130194240.10517-1-armbru@redhat.com>

On Sat, Nov 30, 2019 at 08:42:19PM +0100, Markus Armbruster wrote:
>PATCH 2-4 fix crash bugs.  Including them would be a no-brainer at
>-rc0.  But we're post -rc3, and even for crash bugs we require a
>certain likelihood of users getting bitten.
>
>Jens, please assess impact of PATCH 2's crash bug.

Guest can't use it to trigger a qemu crash because the hotplug_handler
called after the pre-plug doesn't do anything with errp.

qemu_opt_set_bool() is also unlikely to trigger the bug because both
reasons for why it would set errp are not true in this path.

I would prefer for this fix to go into 4.2 but if it is the only one
and triggers a large amount of work then don't do it.

regards
Jens



      parent reply	other threads:[~2019-12-02 11:25 UTC|newest]

Thread overview: 74+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-30 19:42 [PATCH 00/21] Error handling fixes, may contain 4.2 material Markus Armbruster
2019-11-30 19:42 ` [PATCH 01/21] net/virtio: Drop useless n->primary_dev not null checks Markus Armbruster
2019-12-02  9:53   ` Jens Freimann
2019-11-30 19:42 ` [PATCH 02/21] net/virtio: Fix failover error handling crash bugs Markus Armbruster
2019-12-02  9:53   ` Jens Freimann
2019-11-30 19:42 ` [PATCH 03/21] block/file-posix: Fix laio_init() error handling crash bug Markus Armbruster
2019-12-02 10:04   ` Stefan Hajnoczi
2019-12-02 12:22   ` Kevin Wolf
2019-11-30 19:42 ` [PATCH 04/21] crypto: Fix certificate file " Markus Armbruster
2019-12-05 15:24   ` Vladimir Sementsov-Ogievskiy
2019-11-30 19:42 ` [PATCH 05/21] crypto: Fix typo in QCryptoTLSSession's <example> comment Markus Armbruster
2019-12-05 15:26   ` Vladimir Sementsov-Ogievskiy
2019-11-30 19:42 ` [PATCH 06/21] io: Fix Error usage in a comment <example> Markus Armbruster
2019-12-05 15:30   ` Vladimir Sementsov-Ogievskiy
2019-12-06  7:20     ` Markus Armbruster
2019-11-30 19:42 ` [PATCH 07/21] tests: Clean up initialization of Error *err variables Markus Armbruster
2019-12-05 15:33   ` Vladimir Sementsov-Ogievskiy
2019-11-30 19:42 ` [PATCH 08/21] exec: Fix latent file_ram_alloc() error handling bug Markus Armbruster
2019-12-02  7:46   ` Igor Mammedov
2019-11-30 19:42 ` [PATCH 09/21] hw/acpi: Fix latent legacy CPU plug " Markus Armbruster
2019-12-02  7:51   ` Igor Mammedov
2019-11-30 19:42 ` [PATCH 10/21] hw/core: Fix latent fit_load_fdt() " Markus Armbruster
2019-12-05 16:23   ` Vladimir Sementsov-Ogievskiy
2019-12-06  7:46     ` Markus Armbruster
2019-12-06 10:53       ` Vladimir Sementsov-Ogievskiy
2020-01-10 20:06         ` Vladimir Sementsov-Ogievskiy
2020-01-13 13:01           ` Markus Armbruster
2019-11-30 19:42 ` [PATCH 11/21] hw/ipmi: Fix latent realize() error handling bugs Markus Armbruster
2019-12-01 18:22   ` Corey Minyard
2019-12-16  9:20     ` Markus Armbruster
2019-12-16 14:13       ` Corey Minyard
2019-12-17  6:30         ` Markus Armbruster
2019-11-30 19:42 ` [PATCH 12/21] qga: Fix latent guest-get-fsinfo error handling bug Markus Armbruster
2019-12-05 16:29   ` Vladimir Sementsov-Ogievskiy
2019-12-06  7:58     ` Markus Armbruster
2019-11-30 19:42 ` [PATCH 13/21] memory-device: Fix latent memory pre-plug error handling bugs Markus Armbruster
2019-12-01 14:15   ` David Hildenbrand
2019-12-02  5:07     ` Markus Armbruster
2019-12-03 21:37       ` Eric Blake
2019-11-30 19:42 ` [PATCH 14/21] s390x/event-facility: Fix latent realize() error handling bug Markus Armbruster
2019-12-02  9:56   ` David Hildenbrand
2019-11-30 19:42 ` [PATCH 15/21] s390x/cpu_models: Fix latent feature property error handling bugs Markus Armbruster
2019-12-02  9:57   ` David Hildenbrand
2019-12-03  7:22     ` Markus Armbruster
2019-11-30 19:42 ` [PATCH 16/21] s390/cpu_modules: Fix latent realize() " Markus Armbruster
2019-12-01 14:25   ` David Hildenbrand
2019-12-02  5:02     ` Markus Armbruster
2019-11-30 19:42 ` [PATCH 17/21] s390x: Fix latent query-cpu-model-FOO " Markus Armbruster
2019-11-30 21:22   ` David Hildenbrand
2019-12-01 13:46     ` Aleksandar Markovic
2019-12-01 14:07       ` Aleksandar Markovic
2019-12-01 14:11         ` Aleksandar Markovic
2019-12-01 14:09       ` David Hildenbrand
2019-12-02  5:01         ` Markus Armbruster
2019-12-02  8:34           ` David Hildenbrand
2019-12-03  7:27             ` Markus Armbruster
2019-12-02 16:31   ` Cornelia Huck
2019-12-03  7:49     ` Markus Armbruster
2019-12-03  8:01       ` Cornelia Huck
2019-12-03  9:51         ` David Hildenbrand
2019-11-30 19:42 ` [PATCH 18/21] s390x: Fix latent query-cpu-definitions error handling bug Markus Armbruster
2019-12-02  9:55   ` David Hildenbrand
2019-11-30 19:42 ` [PATCH 19/21] error: Clean up unusual names of Error * variables Markus Armbruster
2019-11-30 20:03   ` Philippe Mathieu-Daudé
2019-11-30 19:42 ` [PATCH 20/21] hw/intc/s390: Simplify error handling in kvm_s390_flic_realize() Markus Armbruster
2019-12-02 16:40   ` Cornelia Huck
2019-12-03 20:03     ` Halil Pasic
2019-12-04  7:28       ` Markus Armbruster
2019-11-30 19:42 ` [PATCH 21/21] tests-blockjob: Use error_free_or_abort() Markus Armbruster
2019-12-03 21:43   ` Eric Blake
2019-12-01 14:44 ` [PATCH 00/21] Error handling fixes, may contain 4.2 material Michael S. Tsirkin
2019-12-04  8:44   ` Markus Armbruster
2019-12-02 10:19 ` Daniel P. Berrangé
2019-12-02 11:24 ` Jens Freimann [this message]

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