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 E1A001A3178; Thu, 17 Apr 2025 18:06:38 +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=1744913199; cv=none; b=SFz4HMKa3/LFUhDcp9AoLGOO9aQwzzVnCflRVcTr0BZc9q+PcmlGy6rtdT/9qeAVvV2ZfJIrKYo/GUmXvBqNc4cDeXYBmZOtY0b7V+EaCnKu3GfSb4JicM68K32BWMERBMElk5EhsR/0ERMeWD+7f0EeUHNph3etvARtiVScMyI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744913199; c=relaxed/simple; bh=VWOgztvISG8H+4+anfHN/f4j2VCD3B/Fpc7cvKwjkV8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=P7YI0rgnSb+HtXpiP/8hCJ8fBEsWZRtG4rGG0WLWvlu/RrTWb4EFBKw1pq9GQG2wSw3utrYipXyHReN2dkLWWqjUH5/6sWhLThgqjoA62bzHBWOurjKle2RUvdakKoyoeZv6siZL+3E9Uu5JqZdVFBs9cjNxhRtcVCNW18h08jM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=AC4vH2og; 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="AC4vH2og" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 64C8EC4CEE4; Thu, 17 Apr 2025 18:06:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1744913198; bh=VWOgztvISG8H+4+anfHN/f4j2VCD3B/Fpc7cvKwjkV8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AC4vH2ogL9r7b3Sm0QzvtixRXvPvXoeh+k7EEKMmHU+6iWJw++3IciYWOJutErQJm 58RhROAz5YkVOS6zKKY1ajEQgn7DZHRZIny56LkNesc2oOuv7uxGYI7V03Vaog29FD eoD70ELnS9AjPdzh5T5TxdabxsZZ/8xzqVYzDSVM= 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 6.14 258/449] media: venus: hfi_parser: add check to avoid out of bound access Date: Thu, 17 Apr 2025 19:49:06 +0200 Message-ID: <20250417175128.385609188@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250417175117.964400335@linuxfoundation.org> References: <20250417175117.964400335@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 6.14-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;