From: Takashi Iwai <tiwai@suse.de>
To: Denis Arefev <arefev@swemel.ru>
Cc: David Rhodes <david.rhodes@cirrus.com>,
Richard Fitzgerald <rf@opensource.cirrus.com>,
Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
Stefan Binding <sbinding@opensource.cirrus.com>,
linux-sound@vger.kernel.org, patches@opensource.cirrus.com,
linux-kernel@vger.kernel.org, lvc-project@linuxtesting.org,
stable@vger.kernel.org
Subject: Re: [PATCH] ALSA: hda: cs35l41: Fix NULL pointer dereference in cs35l41_get_acpi_mute_state()
Date: Sat, 11 Oct 2025 08:30:25 +0200 [thread overview]
Message-ID: <87ms5y9chq.wl-tiwai@suse.de> (raw)
In-Reply-To: <20251007073832.3662-1-arefev@swemel.ru>
On Tue, 07 Oct 2025 09:38:31 +0200,
Denis Arefev wrote:
>
> Return value of a function acpi_evaluate_dsm() is dereferenced without
> checking for NULL, but it is usually checked for this function.
>
> acpi_evaluate_dsm() may return NULL, when acpi_evaluate_object() returns
> acpi_status other than ACPI_SUCCESS, so add a check to prevent the crach.
>
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
>
> Fixes: 447106e92a0c ("ALSA: hda: cs35l41: Support mute notifications for CS35L41 HDA")
> Cc: stable@vger.kernel.org
> Signed-off-by: Denis Arefev <arefev@swemel.ru>
Applied now. Thanks.
Takashi
prev parent reply other threads:[~2025-10-11 6:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-07 7:38 [PATCH] ALSA: hda: cs35l41: Fix NULL pointer dereference in cs35l41_get_acpi_mute_state() Denis Arefev
2025-10-11 6:30 ` Takashi Iwai [this message]
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