From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 CAC3D33EC; Tue, 26 Aug 2025 12:54:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756212867; cv=none; b=elGscO+53E5uhPpcP9XdP8FVS53JnOUkZrnLPBh8NIGNGifeJtqNWxqfVg+qsJA0ZqcmQ5Zju0hBcBv476qGvHD0PNnHWZ483e9lW+Iwnztgog57BBYJMhHdcRW6wzw9/fZWjxNnE0lqkqXeuVRyVC3t8WHc+9WAnBxD7JL92ic= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756212867; c=relaxed/simple; bh=rcWfz6dXDOebpI2HPDI1dS5gWLMsEtG1N1R9lOa5HRU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=e3HIHUZwJDHkfA1bWlYcRej+cvmm28AmUR6OvmqSjoI0bPXhIypNkTQwlAOXbIe5rponqJm3acxQO9qSMfjDA2q7XsH3EM5ymfGuYMq0Uzst3aJ/LxF6JkybuIve8XeO06ZUTNMYpnwjDptXe6DlWNioHL79AT5GFpAndNg+B5o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=oNQ8MJDz; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="oNQ8MJDz" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5E95BC4CEF1; Tue, 26 Aug 2025 12:54:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1756212867; bh=rcWfz6dXDOebpI2HPDI1dS5gWLMsEtG1N1R9lOa5HRU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oNQ8MJDzpR1gF3hYdgpRq8Utbjaf864zeE22PoYRsKSFxm9iF7jgJTXSpTYQY2Qco +VgbgSjGFfC4EDp4XqyoHVO5LxDQIWY2SK+VjNamIzUZ90iRZ2tbpAm1I1KJbySuBn dfYIyjtrpVRIgtzxbNbU3e3WLZcP04YSbVEXUmwY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, kernel test robot , Lucy Thrun , Takashi Iwai , Sasha Levin Subject: [PATCH 6.6 133/587] ALSA: hda/ca0132: Fix buffer overflow in add_tuning_control Date: Tue, 26 Aug 2025 13:04:42 +0200 Message-ID: <20250826110956.338577647@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250826110952.942403671@linuxfoundation.org> References: <20250826110952.942403671@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Lucy Thrun [ Upstream commit a409c60111e6bb98fcabab2aeaa069daa9434ca0 ] The 'sprintf' call in 'add_tuning_control' may exceed the 44-byte buffer if either string argument is too long. This triggers a compiler warning. Replaced 'sprintf' with 'snprintf' to limit string lengths to prevent overflow. Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202506100642.95jpuMY1-lkp@intel.com/ Signed-off-by: Lucy Thrun Link: https://patch.msgid.link/20250610175012.918-3-lucy.thrun@digital-rabbithole.de Signed-off-by: Takashi Iwai Signed-off-by: Sasha Levin --- sound/pci/hda/patch_ca0132.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c index 94b452595f30..851e9231bbbd 100644 --- a/sound/pci/hda/patch_ca0132.c +++ b/sound/pci/hda/patch_ca0132.c @@ -4411,7 +4411,7 @@ static int add_tuning_control(struct hda_codec *codec, } knew.private_value = HDA_COMPOSE_AMP_VAL(nid, 1, 0, type); - sprintf(namestr, "%s %s Volume", name, dirstr[dir]); + snprintf(namestr, sizeof(namestr), "%s %s Volume", name, dirstr[dir]); return snd_hda_ctl_add(codec, nid, snd_ctl_new1(&knew, codec)); } -- 2.39.5