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From: Jeffin Philip <jeffinphilip14@gmail.com>
To: gregkh@linuxfoundation.org
Cc: dwlsalmeida@gmail.com, jeffinphilip14@gmail.com,
	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
	mchehab@kernel.org, stable@vger.kernel.org,
	syzbot+c7fc4794e59786f5b4dc@syzkaller.appspotmail.com
Subject: Re: [RFC PATCH] media: vidtv: fix uaf in vidtv_bridge_on_new_pkts_avail
Date: Thu, 27 Aug 2026 10:45:08 +0530	[thread overview]
Message-ID: <20260827051508.13989-1-jeffinphilip14@gmail.com> (raw)
In-Reply-To: <2026082737-traitor-shorter-a4cc@gregkh>

On Thu, 27 Aug 2026 06:51:21 +0200, Greg KH wrote:

>While "fun", this is not a normal path that users ever will hit.  See
>this thread where I propose tainting the kernel if you attempt to do
>this:
>	 https://lore.kernel.org/r/20260826-bind_taint-v1-0-52b05f4a965c@linuxfoundation.org

Thanks for the reference. The task hang is not possible
then. However, the UAF will be triggered anyway as we are just simulating
an unbind. Even if the driver's .release is called naturally, if we are
streaming data, it could cause the UAF, no?

Thanks,
Jeffin.

  reply	other threads:[~2026-08-27  5:15 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-27  4:22 [RFC PATCH] media: vidtv: fix uaf in vidtv_bridge_on_new_pkts_avail Jeffin Philip
2026-08-27  4:26 ` Jeffin Philip
2026-08-27  4:51   ` Greg KH
2026-08-27  5:15     ` Jeffin Philip [this message]
2026-08-27  5:20       ` Greg KH
2026-08-27  5:30         ` Jeffin Philip

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