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 07899227E95; Tue, 29 Apr 2025 17:44:29 +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=1745948670; cv=none; b=C9UgzCHLhBviPP9uZdTvXva4ldLvdWEbfWi2Xyy+C9q+NpJ1ZzYX/3Ami1/+RBQJhsf+aiQhCtKGyia3Zk1YnqFZkNFfIcnBSx8xRZxz+QBYYvdftPKK5VEYBrvtoczsVmoLOGeCk2zUhJruizXzW8q4ReX37453uDONv6cGg80= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745948670; c=relaxed/simple; bh=NfBt+nbUkQLw9tGRKT2jNov6Svk5DXU8hNbUNf4x6mY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=QlTkNTjQUy8REsmuIwL4LdZfsQDGHwVu3GqQg498RaOF/ShT2UncVlxxDqtIwNjfQMOItapD6U2Ve43oer+h3zwlPZkak3hgqPbuW1lXmCTvruEFUMVtaboIEjV/2lWpmtoaaInWFtTOqPyjxPDxuMYcl7zuY7abJuxLujI9YTw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=yfD4AJWc; 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="yfD4AJWc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2F092C4CEE9; Tue, 29 Apr 2025 17:44:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1745948669; bh=NfBt+nbUkQLw9tGRKT2jNov6Svk5DXU8hNbUNf4x6mY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=yfD4AJWcLDTigj3RBSmvE/C5f73Rt72mL0EbCo1CQJY/kqEkd0PXZ5HoL4l7jRcFP iULivcfeZE7ZfvW1N8LsWcbajDo/SZ/JHF7xLczYnysV73phK7PmqUiv+8+V4TKwmh Fpb4YqjtAL137OAaUCfp7zzxvH5AZMSxJvIc1uuQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Bryan ODonoghue , Vikash Garodia , Hans Verkuil Subject: [PATCH 5.15 076/373] media: venus: hfi_parser: add check to avoid out of bound access Date: Tue, 29 Apr 2025 18:39:13 +0200 Message-ID: <20250429161126.282117190@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250429161123.119104857@linuxfoundation.org> References: <20250429161123.119104857@linuxfoundation.org> User-Agent: quilt/0.68 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 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Vikash Garodia commit 172bf5a9ef70a399bb227809db78442dc01d9e48 upstream. There is a possibility that init_codecs is invoked multiple times during manipulated payload from video firmware. In such case, if codecs_count can get incremented to value more than MAX_CODEC_NUM, there can be OOB access. Reset the count so that it always starts from beginning. Cc: stable@vger.kernel.org Fixes: 1a73374a04e5 ("media: venus: hfi_parser: add common capability parser") Reviewed-by: Bryan O'Donoghue Signed-off-by: Vikash Garodia Signed-off-by: Hans Verkuil Signed-off-by: Greg Kroah-Hartman --- drivers/media/platform/qcom/venus/hfi_parser.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/media/platform/qcom/venus/hfi_parser.c +++ b/drivers/media/platform/qcom/venus/hfi_parser.c @@ -19,6 +19,8 @@ static void init_codecs(struct venus_cor struct hfi_plat_caps *caps = core->caps, *cap; unsigned long bit; + core->codecs_count = 0; + if (hweight_long(core->dec_codecs) + hweight_long(core->enc_codecs) > MAX_CODEC_NUM) return;