From: Mauro Carvalho Chehab <mchehab@kernel.org>
To: Lee Jones <lee@kernel.org>
Cc: Takashi Iwai <tiwai@suse.de>, Hyunwoo Kim <imv4bel@gmail.com>,
kernel@tuxforce.de, linux-media@vger.kernel.org,
linux-usb@vger.kernel.org, cai.huoqing@linux.dev
Subject: Re: [PATCH v3 0/4] Fix multiple race condition vulnerabilities in dvb-core and device driver
Date: Sat, 13 May 2023 19:09:01 +0100 [thread overview]
Message-ID: <20230513190901.0f403933@sal.lan> (raw)
In-Reply-To: <20230309171714.GS9667@google.com>
Hi Lee,
Em Thu, 9 Mar 2023 17:17:14 +0000
Lee Jones <lee@kernel.org> escreveu:
> > > Still nothing heard from the author or any maintainer.
> >
> > We're currently lacking a sub-maintainer for dvb. Changes at the
> > DVB mutexes have been problematic and require tests on some
> > devices, specially on those with multiple frontends.
> >
> > I'll try to find some time to review and test those patches.
>
> Thank you Mauro, I fully appreciate the struggles and the effort.
It took more time than I originally anticipated, as I had to setup
a way to test it here with some DVB-T devices, but I reviewed the
code and tested it.
I'm placing the patches I picked at this series:
https://lore.kernel.org/lkml/53558de2b5c4f4ee6bfcfbe34e27071c2d0073d5.1684000646.git.mchehab@kernel.org/T/#t
They seemed to work fine. I tested using two devices:
USB ID 2013:0246 PCTV Systems PCTV 74E
USB ID 2040:5200 Hauppauge NovaT 500Stick
The second one has two DVB-T independent devices on it.
I did some tests of removing and re-inserting them with the
devices closed and with the device opened and streamed. I didn't
find any regressions. I didn't try to use kmemleak or KASAN to
detect UAF conditions, though.
Regards,
Mauro
next prev parent reply other threads:[~2023-05-13 18:09 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-17 4:59 [PATCH v3 0/4] Fix multiple race condition vulnerabilities in dvb-core and device driver Hyunwoo Kim
2022-11-17 4:59 ` [PATCH v3 1/4] media: dvb-core: Fix use-after-free due to race condition occurring in dvb_frontend Hyunwoo Kim
2022-11-17 4:59 ` [PATCH v3 2/4] media: dvb-core: Fix use-after-free due to race condition occurring in dvb_net Hyunwoo Kim
2022-11-17 4:59 ` [PATCH v3 3/4] media: dvb-core: Fix use-after-free due to race condition occurring in dvb_register_device() Hyunwoo Kim
2022-11-17 4:59 ` [PATCH v3 4/4] media: ttusb-dec: Fix memory leak in ttusb_dec_exit_dvb() Hyunwoo Kim
2023-01-10 14:18 ` [PATCH v3 0/4] Fix multiple race condition vulnerabilities in dvb-core and device driver Takashi Iwai
2023-02-22 13:23 ` Lee Jones
2023-02-28 11:32 ` Lee Jones
2023-03-07 10:36 ` Lee Jones
2023-03-07 11:08 ` V4bel
2023-03-08 13:39 ` Lee Jones
2023-03-09 0:15 ` Mauro Carvalho Chehab
2023-03-09 17:17 ` Lee Jones
2023-05-13 18:09 ` Mauro Carvalho Chehab [this message]
2023-05-14 14:56 ` Mauro Carvalho Chehab
2023-03-07 12:41 ` Mauro Carvalho Chehab
[not found] ` <CADUEyCz=xuYjNQohgOi86vm4P4YyfO86AbM0cWdFrs1Y_6276g@mail.gmail.com>
2023-03-09 2:06 ` Hyunwoo Kim
2023-03-09 17:18 ` Lee Jones
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