From: Johan Hovold <johan@kernel.org>
To: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: Mark Brown <broonie@kernel.org>, Frank Li <Frank.Li@nxp.com>,
Sascha Hauer <s.hauer@pengutronix.de>,
Heiko Stuebner <heiko@sntech.de>,
Laxman Dewangan <ldewangan@nvidia.com>,
linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org,
stable@vger.kernel.org
Subject: Re: [PATCH 1/5] spi: imx: fix use-after-free on unbind
Date: Mon, 23 Mar 2026 16:41:15 +0100 [thread overview]
Message-ID: <acFfGzBkNPaIj3jv@hovoldconsulting.com> (raw)
In-Reply-To: <20260323-kickass-original-wapiti-a01804-mkl@pengutronix.de>
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On Mon, Mar 23, 2026 at 03:47:45PM +0100, Marc Kleine-Budde wrote:
> On 23.03.2026 14:59:49, Johan Hovold wrote:
> > Indeed, it's a known issue with the SPI API. See for example:
> >
> > 68b892f1fdc4 ("spi: document odd controller reference handling")
> > 5e844cc37a5c ("spi: Introduce device-managed SPI controller allocation")
> > f0c35a024cce ("spi: fix misleading controller deregistration kernel-doc")
This was supposed to say
3f174274d224 ("spi: fix misleading controller deregistration kernel-doc")
> > > Would using devm_spi_alloc_host() be an option here?
> >
> > It can also be used, but that's more intrusive so I did that as a
> > follow-on cleanup to the fix (see patch 2/5).
>
> Ah, nice! At the time I replied to the patch, the whole series was not
> available on lore, yet.
Sorry, I should have CC:ed you the whole series.
> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
>
> And thanks for taking the time in explaining me the details :)
No worries. :)
Johan
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next prev parent reply other threads:[~2026-03-23 15:41 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-23 10:49 [PATCH 0/5] spi: imx: fix use-after-free on unbind Johan Hovold
2026-03-23 10:49 ` [PATCH 1/5] " Johan Hovold
2026-03-23 11:00 ` Marc Kleine-Budde
2026-03-23 11:20 ` Johan Hovold
2026-03-23 11:57 ` Marc Kleine-Budde
2026-03-23 13:59 ` Johan Hovold
2026-03-23 14:47 ` Marc Kleine-Budde
2026-03-23 15:41 ` Johan Hovold [this message]
2026-03-23 10:49 ` [PATCH 2/5] spi: imx: switch to managed controller allocation Johan Hovold
2026-03-23 10:49 ` [PATCH 3/5] spi: tegra20-slink: " Johan Hovold
2026-03-23 10:49 ` [PATCH 4/5] spi: rockchip: fix controller deregistration Johan Hovold
2026-03-23 16:35 ` Mark Brown
2026-03-23 16:51 ` Johan Hovold
2026-03-23 17:02 ` Mark Brown
2026-03-24 8:09 ` Johan Hovold
2026-03-23 10:49 ` [PATCH 5/5] spi: rockchip: switch to managed controller allocation Johan Hovold
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