From: Daniel Palmer <daniel@0x0f.com>
To: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Stephen Boyd <sboyd@kernel.org>,
Michael Turquette <mturquette@baylibre.com>,
linux-arm-msm@vger.kernel.org,
linux-clk <linux-clk@vger.kernel.org>,
dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org,
Rob Clark <robdclark@chromium.org>
Subject: Re: [PATCH] clk: fixed: fix double free in resource managed fixed-factor clock
Date: Wed, 7 Apr 2021 20:38:56 +0900 [thread overview]
Message-ID: <CAFr9PXm9oStJ4oKNaGCGi9sXBTc-6iDZJZTWvumWHiFwwcRPnQ@mail.gmail.com> (raw)
In-Reply-To: <20210406230606.3007138-1-dmitry.baryshkov@linaro.org>
Hi Dmitry,
On Wed, 7 Apr 2021 at 08:06, Dmitry Baryshkov
<dmitry.baryshkov@linaro.org> wrote:
>
> devm_clk_hw_register_fixed_factor_release(), the release function for
> the devm_clk_hw_register_fixed_factor(), calls
> clk_hw_unregister_fixed_factor(), which will kfree() the clock. However
> after that the devres functions will also kfree the allocated data,
> resulting in double free/memory corruption. Just call
> clk_hw_unregister() instead, leaving kfree() to devres code.
Doh.
Sorry for not spotting this when I wrote the patch.
Thank you for cleaning up after me.
Cheers,
Daniel
next prev parent reply other threads:[~2021-04-07 11:37 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-06 23:06 [PATCH] clk: fixed: fix double free in resource managed fixed-factor clock Dmitry Baryshkov
2021-04-07 9:00 ` Dmitry Baryshkov
2021-04-07 11:38 ` Daniel Palmer [this message]
2021-04-07 22:41 ` Stephen Boyd
2021-04-07 22:57 ` Dmitry Baryshkov
[not found] ` <161783803315.3790633.10829887417379757624@swboyd.mtv.corp.google.com>
2021-04-08 0:52 ` Dmitry Baryshkov
2021-04-08 7:32 ` Stephen Boyd
2021-04-07 23:01 ` Stephen Boyd
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