From: Carlos Llamas <cmllamas@google.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Arve Hjønnevåg" <arve@android.com>,
"Todd Kjos" <tkjos@android.com>,
"Martijn Coenen" <maco@android.com>,
"Joel Fernandes" <joel@joelfernandes.org>,
"Christian Brauner" <brauner@kernel.org>,
"Suren Baghdasaryan" <surenb@google.com>,
linux-kernel@vger.kernel.org, kernel-team@android.com,
"Alice Ryhl" <aliceryhl@google.com>,
stable@vger.kernel.org
Subject: Re: [PATCH v2 03/28] binder: fix race between mmput() and do_exit()
Date: Mon, 22 Jan 2024 18:05:53 +0000 [thread overview]
Message-ID: <Za6ugTv5lEMWa3Vg@google.com> (raw)
In-Reply-To: <2024012013-zoologist-reawake-8ebe@gregkh>
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
next prev parent reply other threads:[~2024-01-22 18:05 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-01 17:21 [PATCH v2 00/28] binder: convert alloc->mutex to spinlock Carlos Llamas
2023-12-01 17:21 ` [PATCH v2 01/28] binder: use EPOLLERR from eventpoll.h Carlos Llamas
2023-12-01 17:21 ` [PATCH v2 02/28] binder: fix use-after-free in shinker's callback Carlos Llamas
2023-12-01 17:21 ` [PATCH v2 03/28] binder: fix race between mmput() and do_exit() Carlos Llamas
2024-01-18 19:29 ` Carlos Llamas
2024-01-19 5:48 ` Greg Kroah-Hartman
2024-01-19 17:06 ` Carlos Llamas
2024-01-19 17:37 ` Carlos Llamas
2024-01-20 6:37 ` Greg Kroah-Hartman
2024-01-22 18:05 ` Carlos Llamas [this message]
2023-12-01 17:21 ` [PATCH v2 04/28] binder: fix async space check for 0-sized buffers Carlos Llamas
2024-01-18 19:32 ` Carlos Llamas
2024-01-19 5:48 ` Greg Kroah-Hartman
2024-01-19 17:11 ` Carlos Llamas
2024-01-22 15:05 ` Greg Kroah-Hartman
2023-12-01 17:21 ` [PATCH v2 05/28] binder: fix unused alloc->free_async_space Carlos Llamas
2023-12-04 11:56 ` Alice Ryhl
2024-01-18 19:33 ` Carlos Llamas
2024-01-19 5:49 ` Greg Kroah-Hartman
2024-01-19 17:27 ` Carlos Llamas
2024-01-22 15:04 ` Greg Kroah-Hartman
2024-01-22 15:05 ` Greg Kroah-Hartman
2024-01-22 18:08 ` Carlos Llamas
2024-01-22 18:35 ` Greg Kroah-Hartman
2023-12-01 17:21 ` [PATCH v2 06/28] binder: fix trivial typo of binder_free_buf_locked() Carlos Llamas
2023-12-01 17:21 ` [PATCH v2 07/28] binder: fix comment on binder_alloc_new_buf() return value Carlos Llamas
2023-12-01 17:21 ` [PATCH v2 08/28] binder: remove extern from function prototypes Carlos Llamas
2023-12-01 17:21 ` [PATCH v2 09/28] binder: keep vma addresses type as unsigned long Carlos Llamas
2023-12-04 11:56 ` Alice Ryhl
2023-12-01 17:21 ` [PATCH v2 10/28] binder: split up binder_update_page_range() Carlos Llamas
2023-12-01 17:21 ` [PATCH v2 11/28] binder: do unlocked work in binder_alloc_new_buf() Carlos Llamas
2023-12-04 11:57 ` Alice Ryhl
2023-12-04 14:22 ` Carlos Llamas
2023-12-04 14:23 ` Alice Ryhl
2023-12-01 17:21 ` [PATCH v2 12/28] binder: remove pid param " Carlos Llamas
2023-12-01 17:21 ` [PATCH v2 13/28] binder: separate the no-space debugging logic Carlos Llamas
2023-12-01 17:21 ` [PATCH v2 14/28] binder: relocate low space calculation Carlos Llamas
2023-12-01 17:21 ` [PATCH v2 15/28] binder: relocate binder_alloc_clear_buf() Carlos Llamas
2023-12-01 17:21 ` [PATCH v2 16/28] binder: refactor page range allocation Carlos Llamas
2023-12-01 17:21 ` [PATCH v2 17/28] binder: malloc new_buffer outside of locks Carlos Llamas
2023-12-04 11:57 ` Alice Ryhl
2023-12-01 17:21 ` [PATCH v2 18/28] binder: initialize lru pages in mmap callback Carlos Llamas
2023-12-01 17:21 ` [PATCH v2 19/28] binder: perform page installation outside of locks Carlos Llamas
2023-12-04 11:57 ` Alice Ryhl
2023-12-01 17:21 ` [PATCH v2 20/28] binder: remove redundant debug log Carlos Llamas
2023-12-04 11:57 ` Alice Ryhl
2023-12-01 17:21 ` [PATCH v2 21/28] binder: make oversized buffer code more readable Carlos Llamas
2023-12-04 11:57 ` Alice Ryhl
2023-12-01 17:21 ` [PATCH v2 22/28] binder: rename lru shrinker utilities Carlos Llamas
2023-12-04 11:57 ` Alice Ryhl
2023-12-01 17:21 ` [PATCH v2 23/28] binder: document the final page calculation Carlos Llamas
2023-12-04 11:57 ` Alice Ryhl
2023-12-04 14:39 ` Carlos Llamas
2023-12-04 14:43 ` Alice Ryhl
2023-12-04 14:53 ` Carlos Llamas
2023-12-01 17:21 ` [PATCH v2 24/28] binder: collapse print_binder_buffer() into caller Carlos Llamas
2023-12-04 11:57 ` Alice Ryhl
2023-12-01 17:21 ` [PATCH v2 25/28] binder: refactor binder_delete_free_buffer() Carlos Llamas
2023-12-04 11:57 ` Alice Ryhl
2023-12-01 17:21 ` [PATCH v2 26/28] binder: avoid user addresses in debug logs Carlos Llamas
2023-12-04 11:57 ` Alice Ryhl
2023-12-01 17:21 ` [PATCH v2 27/28] binder: reverse locking order in shrinker callback Carlos Llamas
2023-12-04 11:57 ` Alice Ryhl
2023-12-04 14:45 ` Carlos Llamas
2023-12-04 14:47 ` Alice Ryhl
2023-12-04 15:01 ` Carlos Llamas
2023-12-01 17:21 ` [PATCH v2 28/28] binder: switch alloc->mutex to spinlock_t Carlos Llamas
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