linux-kernel - Re: [PATCH v2 03/28] binder: fix race between mmput() and do

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Message-ID: <Za6ugTv5lEMWa3Vg@google.com>
Date: Mon, 22 Jan 2024 18:05:53 +0000
From: Carlos Llamas <cmllamas@...gle.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Arve Hjønnevåg <arve@...roid.com>,
	Todd Kjos <tkjos@...roid.com>, Martijn Coenen <maco@...roid.com>,
	Joel Fernandes <joel@...lfernandes.org>,
	Christian Brauner <brauner@...nel.org>,
	Suren Baghdasaryan <surenb@...gle.com>,
	linux-kernel@...r.kernel.org, kernel-team@...roid.com,
	Alice Ryhl <aliceryhl@...gle.com>, stable@...r.kernel.org
Subject: Re: [PATCH v2 03/28] binder: fix race between mmput() and do_exit()

On Sat, Jan 20, 2024 at 07:37:25AM +0100, Greg Kroah-Hartman wrote:
> On Fri, Jan 19, 2024 at 05:37:22PM +0000, Carlos Llamas wrote:
> > On Fri, Jan 19, 2024 at 05:06:13PM +0000, Carlos Llamas wrote:
> > > 
> > > Oops, here is the complete info:
> > > 
> > > Commit ID: 9a9ab0d963621d9d12199df9817e66982582d5a5
> > > Subject:   "binder: fix race between mmput() and do_exit()"
> > > Reason:    Fixes a race condition in binder.
> > > Versions:  v4.19+
> > > 
> > > Note this will have a trivial conflict in v4.19 and v5.10 kernels as
> > > commit d8ed45c5dcd4 is not there. Please let me know if I should send
> > > those patches separately.
> > > 
> > > Thanks,
> > > --
> > > Carlos Llamas
> > 
> > Sigh, I meant to type "conflict in v4.19 and v5.4". The patch applies
> > cleanly in v5.10+.
> 
> Yes, I need backported patches please.
> 
> thanks,
> 
> greg k-h

Backports have been sent.

linux-4.19.y:
https://lore.kernel.org/all/20240122174250.2123854-1-cmllamas@google.com/

linux-5.4.y:
https://lore.kernel.org/all/20240122175751.2214176-1-cmllamas@google.com/

The patch should apply cleanly in remaining stable branches.

Thanks,
--
Carlos Llamas