From: Pavel Begunkov <asml.silence@gmail.com>
To: stable@vger.kernel.org
Cc: 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 01:30:04 +0000 [thread overview]
Message-ID: <de75fce7-a3ba-4bf9-bd06-c5713eb84fcb@gmail.com> (raw)
In-Reply-To: <df02f3ce337d92947f14bdd4617b769265098e29.1739926925.git.asml.silence@gmail.com>
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?
--
Pavel Begunkov
next prev parent reply other threads:[~2025-02-19 1:29 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 [this message]
2025-02-19 5:53 ` Greg KH
2025-02-19 12:13 ` Pavel Begunkov
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