From patchwork Mon Jul 15 10:24:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Naushir Patuck X-Patchwork-Id: 813318 Received: from mail-wm1-f99.google.com (mail-wm1-f99.google.com [209.85.128.99]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9D72116CD36 for ; Mon, 15 Jul 2024 10:24:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.99 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721039071; cv=none; b=RkUCOzsyy65xdG4QpRqeHVWyfN6QNSchCYfSQ7Idl/lOVVF0qWwz3PHuiroBE/vYZHn5+Wd2B3b5mDRpwqttAbc/gshYIPOY2oqREeox5Bd8cG6cazyt1cqXMMaCYF0GJxhe5FMrw02oWx8gHRfPuX8tOstU7RdNqsR3azunE40= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721039071; c=relaxed/simple; bh=bjdW92jh6LmGheduG7+IpwoMZvRX1OvTyhl9Ubztxsc=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=UVExGw6s0M3jKhoYsLqv3w5OaZQs5CLJCLIW+3KnLMZ1eF5V/Z2t6MYcapAVKsHFvLdXiksMu53H+TOpK2FvQwjMWeyloUUFDcOK7O8BZmXZfKg1k5eHNHqpO/tIrFJjnL/KE4x91U8sXNJk+sxDIYefiCeEznBhQ7ya3MKId4I= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=raspberrypi.com; spf=pass smtp.mailfrom=raspberrypi.com; dkim=pass (2048-bit key) header.d=raspberrypi.com header.i=@raspberrypi.com header.b=PNa18tsM; arc=none smtp.client-ip=209.85.128.99 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=raspberrypi.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=raspberrypi.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=raspberrypi.com header.i=@raspberrypi.com header.b="PNa18tsM" Received: by mail-wm1-f99.google.com with SMTP id 5b1f17b1804b1-4266f344091so29641275e9.0 for ; Mon, 15 Jul 2024 03:24:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=raspberrypi.com; s=google; t=1721039068; x=1721643868; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=Pk0IVIISB+xxoDEVYUa+oHK676R5bZEKLrea1OIcBv0=; b=PNa18tsMa5e6j69Hh5cz4oaFsc8mFSCqrgPjYdbYNLJqhpM9OCQRhL7LjCVX9aVoxd C8I504wUHqt9OX3WbeUHDfb3wSJ0yO2/snrdNbF43QWXT6vaLT0xxR6iJlE3isMGxF1D RRu87ORuPIqEWjW3wC5cZi9yLJm8Uv27vPU9kAH9cel+rC90kTH7YPyPeJniFzPVOoiC hxnzKujq7UwDVGSPrqUDKp1flGI+f38m/O0759CuFUA/8SI1dfaH8SNbDuiq6/dCOF59 WtS0MmTBYnB9AgcW3p8/ZxJMoSVaYyQn3mXMDu9+RA7VIKUdB+WUT6c1S5kMQuDSgJwn drlQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1721039068; x=1721643868; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=Pk0IVIISB+xxoDEVYUa+oHK676R5bZEKLrea1OIcBv0=; b=bWEkdJ1vpd3nqRAto6ye0XVGvAQeIwcuwaempOli44ZcfQw40xCTiogc9n5rObPWNE t8yrIAAAI2HxnRjCQeRFGHiSgjbYbRD/dtHcuuanrBJjLtLUfUfghLn6fOlzIH81rJIH DFZMKluEq1ZdPbf+R9QwjlTH3zDWWmQCOMdraa/CRw87ot2jki6zButp57S7SFhAWzVg Bgge+pIZ6PsdCH4ROfmRmN2QSC0eF9fc4sHKXhwOEhJ5Zwjt5uBsJZqTc4fVPwwRnC4r D5Kqf8OM//MhuS1XqCewUDFtiU1bDSvDfyRUK2XjAdUM+lU291nDXHdZIodtNGb+yIN+ iDdw== X-Gm-Message-State: AOJu0Yyu6SZARqRnBIrnWmMlMmlBKdi6YQFfZbOkhvf54WW5tYC8djZh 7OazRt7itjb9H0l8j97U4DzptsT+Gc2lX35+GiJwgc3BPZQ29mxdMSqDRj8lL0FKpkokTXRxVDc ZBPcVi7ZiwuP8lygWZx8IfuVeIHCgmqTw9EzHM/9c X-Google-Smtp-Source: AGHT+IFLqxh9pq4OrKUsrwIC/EV3wXumntEVM0LHQyBmkzESNGse7Y8Rbpvx4nRm52nqY8CGXoZyEuLvX7nY X-Received: by 2002:a05:600c:4818:b0:426:51dc:f6cd with SMTP id 5b1f17b1804b1-426707db749mr117242695e9.18.1721039067714; Mon, 15 Jul 2024 03:24:27 -0700 (PDT) Received: from raspberrypi.com ([93.93.133.154]) by smtp-relay.gmail.com with ESMTPS id 5b1f17b1804b1-4279f2ce10esm2669325e9.41.2024.07.15.03.24.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 Jul 2024 03:24:27 -0700 (PDT) X-Relaying-Domain: raspberrypi.com From: Naushir Patuck To: linux-media@vger.kernel.org Cc: Raspberry Pi Kernel Maintenance , Jacopo Mondi , Mauro Carvalho Chehab , Naushir Patuck , Dan Carpenter Subject: [PATCH] media: pispbe: Protect against left-shift wrap in V4L2_COLORSPACE_MASK() Date: Mon, 15 Jul 2024 11:24:25 +0100 Message-Id: <20240715102425.1244918-1-naush@raspberrypi.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Ensure that the user requested colorspace value does not wrap when using the V4L2_COLORSPACE_MASK() macro. If the requested colorspace value >= BIT_PER_LONG, revert to the default colorspace for the given format. Reported-by: Dan Carpenter Signed-off-by: Naushir Patuck --- drivers/media/platform/raspberrypi/pisp_be/pisp_be.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/raspberrypi/pisp_be/pisp_be.c b/drivers/media/platform/raspberrypi/pisp_be/pisp_be.c index e74df5b116dc..bd5d77c691d3 100644 --- a/drivers/media/platform/raspberrypi/pisp_be/pisp_be.c +++ b/drivers/media/platform/raspberrypi/pisp_be/pisp_be.c @@ -1124,8 +1124,9 @@ static void pispbe_try_format(struct v4l2_format *f, struct pispbe_node *node) * not supported. This also catches the case when the "default" * colour space was requested (as that's never in the mask). */ - if (!(V4L2_COLORSPACE_MASK(f->fmt.pix_mp.colorspace) & - fmt->colorspace_mask)) + if (f->fmt.pix_mp.colorspace >= BITS_PER_LONG || + !(V4L2_COLORSPACE_MASK(f->fmt.pix_mp.colorspace) & + fmt->colorspace_mask)) f->fmt.pix_mp.colorspace = fmt->colorspace_default; /* In all cases, we only support the defaults for these: */