From: Pavel Begunkov <asml.silence@gmail.com>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: stable@vger.kernel.org, Jens Axboe <axboe@kernel.dk>,
Pumpkin Chang <pumpkin@devco.re>
Subject: Re: [PATCH 6.12.y 6.13.y] io_uring/kbuf: reallocate buf lists on upgrade
Date: Wed, 19 Feb 2025 12:13:52 +0000 [thread overview]
Message-ID: <f2f9e3ba-07fd-4fb0-ad05-893ef41a1a3f@gmail.com> (raw)
In-Reply-To: <2025021941-getaway-polish-00a9@gregkh>
On 2/19/25 05:53, Greg KH wrote:
> On Wed, Feb 19, 2025 at 01:30:04AM +0000, Pavel Begunkov wrote:
>> On 2/19/25 01:28, Pavel Begunkov wrote:
>>> [ upstream commit 8802766324e1f5d414a81ac43365c20142e85603 ]
>>>
>>> IORING_REGISTER_PBUF_RING can reuse an old struct io_buffer_list if it
>>> was created for legacy selected buffer and has been emptied. It violates
>>> the requirement that most of the field should stay stable after publish.
>>> Always reallocate it instead.
>>
>> Just a note that it should apply to 6.13 and 6.12, can you
>> pick it for both of them?
>
> Now done, thanks!
Great, thanks
--
Pavel Begunkov
prev parent reply other threads:[~2025-02-19 12:12 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-18 11:28 FAILED: patch "[PATCH] io_uring/kbuf: reallocate buf lists on upgrade" failed to apply to 6.13-stable tree gregkh
2025-02-19 1:28 ` [PATCH 6.12.y 6.13.y] io_uring/kbuf: reallocate buf lists on upgrade Pavel Begunkov
2025-02-19 1:30 ` Pavel Begunkov
2025-02-19 5:53 ` Greg KH
2025-02-19 12:13 ` Pavel Begunkov [this message]
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