From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1EB7F33F5B4; Thu, 28 May 2026 19:57:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779998226; cv=none; b=lyZdMLf0u3uVY9CSqnGLVOkj6lg35u9MHoGxKRWTQVazG7y4rny+bMqzJAtFWKRyUmYRMo0r3alHnvNPBxNFCeZjPMfSrfW86clHNgiCL/KB2kougDyhgKDlJLwT91oxzXvdAStae3Y94q/beoMJOHt1+sFTOgpuXtkF6UWLzUQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779998226; c=relaxed/simple; bh=Cnpnl5hB/wZTUyIExlMBWE4ErhH4hrVYTszEV+ZeH+c=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=XP4gfyfQ6vrnAOEE4hjiVGwPClxUPqr2vXdm4h/1ldH6H82Nu1XmU1ya9qZyTszQpY6sLthFfO2StXxo1K/YvIDz8vU2UAHBkOaihU95ifmGq8qyDnGCEpmQ9SHpajp/L9sXvom8a0vx6ARA2ShCXcHMqOtTdXKOLyxd2UojUPk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=rrVMjYRr; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="rrVMjYRr" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7BA291F000E9; Thu, 28 May 2026 19:57:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1779998225; bh=g/khfj49g37Fw2oDLYHsSgYULotdA7walskFZG9nvtQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=rrVMjYRrhFPnHaBox9ilrLPUlRgdRKEBswo83MaR1kPygJ8x1XsfozFZmpzqsl9Tw GkyKUX5ZV6d9/GzdHgoIYhzxTckEwLQlbFT2z0ThZjIFnzBrPHPVqdgGh84T/u3spO esNn5xT+2hMbNq9rJctHU9QIyiPqvHMKARxI8jEE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, stable@kernel.org, Jeongjun Park , Mark Brown Subject: [PATCH 7.0 098/461] ASoC: codecs: pcm512x: fix null-ptr dereference in pcm512x_overclock_xxx_put() Date: Thu, 28 May 2026 21:43:47 +0200 Message-ID: <20260528194649.788180815@linuxfoundation.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260528194646.819809818@linuxfoundation.org> References: <20260528194646.819809818@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 7.0-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jeongjun Park commit 09e8f9a9aa19aa8c1b0cc7a0ebc68f6ecf86a660 upstream. In the pcm512x chipset driver, pcm512x_overclock_xxx_put() is defined as a general mixer kcontrol instead of a DAPM kcontrol, so struct snd_soc_dapm_context must not be accessed via snd_soc_dapm_kcontrol_to_dapm(). This causes a NULL pointer dereference, so it must be modified to use snd_soc_component_to_dapm(). Cc: stable@kernel.org Closes: https://github.com/raspberrypi/linux/issues/7242 Fixes: 02dbbb7e982a ("ASoC: codecs: pcm512x: convert to snd_soc_dapm_xxx()") Signed-off-by: Jeongjun Park Link: https://patch.msgid.link/20260521113712.227438-1-aha310510@gmail.com Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman --- sound/soc/codecs/pcm512x.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/sound/soc/codecs/pcm512x.c +++ b/sound/soc/codecs/pcm512x.c @@ -235,7 +235,7 @@ static int pcm512x_overclock_pll_put(str struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); - struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_to_dapm(kcontrol); + struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component); struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component); switch (snd_soc_dapm_get_bias_level(dapm)) { @@ -264,7 +264,7 @@ static int pcm512x_overclock_dsp_put(str struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); - struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_to_dapm(kcontrol); + struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component); struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component); switch (snd_soc_dapm_get_bias_level(dapm)) { @@ -293,7 +293,7 @@ static int pcm512x_overclock_dac_put(str struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); - struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_to_dapm(kcontrol); + struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component); struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component); switch (snd_soc_dapm_get_bias_level(dapm)) {