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 DC6EA1DF757; Wed, 6 Nov 2024 12:14:39 +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=1730895281; cv=none; b=cava/4yKCXmCR3cN28tEXme4qhPPSERBqIVdytwL/uHpHMcWl72bDB+8/Zw48YxJWu7vRpscmMFDcMwfsEUKVVcJZusI8qlI4em2IRgr3DUVY3F1v8BvTiVO6eQohgW+YFpLve4ErbGBA7KIV8P2NUOyfSdBA/Zw+0kUnPypr6s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730895281; c=relaxed/simple; bh=h6rYI6GmxTtGFklTyCpb85lJAo7lorm6tSDUjisCeyU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=V57zsKelC0VoHMjyg/qV/kzeyXz4kkENKATDQk/vNqstzhx8TiYx4oRNL02ERleBb3ZEosvdeDyqzxhQGepel5o+nGDOcSGDynWTTgSvmpy0Qvv5522lszPDrjAm20QX37Fux5btV3dhSXwaB27A4s8EwsmazoFwmzG+f9ePSoo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=j351SSJa; 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="j351SSJa" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 21CEFC4CED2; Wed, 6 Nov 2024 12:14:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1730895279; bh=h6rYI6GmxTtGFklTyCpb85lJAo7lorm6tSDUjisCeyU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=j351SSJa139GnfmL37YHZTxvA3BFY0+P0Dd+/My695omSItfbyqre0XLp3V9jdeDi b1rCGRVXQgshaVibRrhYgcEOcjEcj1jSH+VXSV/+7akFya8tsRGCXt3Z812GhV7q2p GNFDd7Cads27qbCkEfvLTFZtwedys8WcTBQSILKY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Takashi Iwai , Sasha Levin Subject: [PATCH 4.19 163/350] ALSA: asihpi: Fix potential OOB array access Date: Wed, 6 Nov 2024 13:01:31 +0100 Message-ID: <20241106120324.948202297@linuxfoundation.org> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241106120320.865793091@linuxfoundation.org> References: <20241106120320.865793091@linuxfoundation.org> User-Agent: quilt/0.67 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 4.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Takashi Iwai [ Upstream commit 7b986c7430a6bb68d523dac7bfc74cbd5b44ef96 ] ASIHPI driver stores some values in the static array upon a response from the driver, and its index depends on the firmware. We shouldn't trust it blindly. This patch adds a sanity check of the array index to fit in the array size. Link: https://patch.msgid.link/20240808091454.30846-1-tiwai@suse.de Signed-off-by: Takashi Iwai Signed-off-by: Sasha Levin --- sound/pci/asihpi/hpimsgx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/pci/asihpi/hpimsgx.c b/sound/pci/asihpi/hpimsgx.c index 736f45337fc70..5be1d910a5d57 100644 --- a/sound/pci/asihpi/hpimsgx.c +++ b/sound/pci/asihpi/hpimsgx.c @@ -724,7 +724,7 @@ static u16 HPIMSGX__init(struct hpi_message *phm, phr->error = HPI_ERROR_PROCESSING_MESSAGE; return phr->error; } - if (hr.error == 0) { + if (hr.error == 0 && hr.u.s.adapter_index < HPI_MAX_ADAPTERS) { /* the adapter was created successfully save the mapping for future use */ hpi_entry_points[hr.u.s.adapter_index] = entry_point_func; -- 2.43.0