From: Krzysztof Kozlowski <krzk@kernel.org>
To: Peter Griffin <peter.griffin@linaro.org>,
Alim Akhtar <alim.akhtar@samsung.com>,
linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Alexey Klimov <alexey.klimov@linaro.org>,
Sashiko <sashiko-bot@kernel.org>,
stable@vger.kernel.org
Subject: Re: [PATCH fixes] soc: samsung: exynos-pmu: fix use-after-free of interrupt generator node
Date: Thu, 17 Sep 2026 10:15:47 +0200 [thread overview]
Message-ID: <e108d128-a48e-4da7-a959-63775f5548fa@kernel.org> (raw)
In-Reply-To: <20260917081510.59599-2-krzk@kernel.org>
On 17/09/2026 10:15, Krzysztof Kozlowski wrote:
> From: Alexey Klimov <alexey.klimov@linaro.org>
>
> The setup_cpuhp_and_cpuidle() parses the device tree node for the
> interrupt generation block via of_parse_phandle() and decrements its
> reference count using of_node_put() immediately after fetching the resource
> address. However, later the intr_gen_node pointer is passed into
> of_syscon_register_regmap().
>
> Fix this by declaring intr_gen_node with __free() and removing
> of_node_put().
>
> Reported-by: Sashiko <sashiko-bot@kernel.org>
> Closes: https://sashiko.dev/#/patchset/20260513-exynos850-cpuhotplug-v4-0-54fec5f65362@linaro.org?part=3
> Fixes: 78b72897a5c8 ("soc: samsung: exynos-pmu: Enable CPU Idle for gs101")
> Cc: stable@vger.kernel.org
> Signed-off-by: Alexey Klimov <alexey.klimov@linaro.org>
> Link: https://patch.msgid.link/20260828-exynos-pmu-cpuhp-idle-fixes-v2-1-06bce6107bd6@linaro.org
> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
> ---
> drivers/soc/samsung/exynos-pmu.c | 7 ++-----
Please ignore, brain fart.
Best regards,
Krzysztof
next prev parent reply other threads:[~2026-09-17 8:15 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-17 8:15 [PATCH fixes] soc: samsung: exynos-pmu: fix use-after-free of interrupt generator node Krzysztof Kozlowski
2026-09-17 8:15 ` Krzysztof Kozlowski [this message]
-- strict thread matches above, loose matches on Subject: below --
2026-09-17 8:16 Krzysztof Kozlowski
2026-09-18 13:40 ` patchwork-bot+linux-soc
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