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 1AB811C6FE3; Wed, 19 Feb 2025 08:32:12 +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=1739953932; cv=none; b=XZq2QgLHDt0WPcczXVdt6YV+10UTIBP71/bU9JSUmAskdLl/PM9013q40XriRm2fKyQXhju+LW1KgeuXTUE34CSX1j10AQHdp23sWL7kpZICu8wMX59O7Hb7NgsyEEN0EeHDsKhTYwdJ2qLn9wSWBy7aHDNMKF8KygCF3m22NTg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739953932; c=relaxed/simple; bh=Ynhag8F+6Nzkl3CPrKIfa2OBQJHQ1EQ59JyucLhqbBk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=M9sMURRB5V5PiROpJ4sUKVsEGrIgqyJgQSGS3LQyYkyyrV/U2QqnmM88eH3nddGZel4NFn3ZdwFBk7EsoAW5+F3Enxi5HkXu/pF419WwUXFP5r/D5Pxlfqq9/OfhOZ8m7pNSqzAVW/vkiCS13v2eOtTajJrQz7wBQwnRdzsLgtM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=yrX6BDLc; 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="yrX6BDLc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8D700C4CED1; Wed, 19 Feb 2025 08:32:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1739953932; bh=Ynhag8F+6Nzkl3CPrKIfa2OBQJHQ1EQ59JyucLhqbBk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=yrX6BDLcz/Pb9X+NzfDc/S2FtzhgQRIwALo/qVatvoTZCVB543NVXbzFOCllCcf4c LuUzGyR7y7dW8b2HsDLP3W4hxEmYdWK+E6gRUBHyI7G13umnrkyUkqDbNOL4FyvI0i 5K2d8EtVRf3mTJIpBf0FClA4/eE/luCrM7UYuC8Q= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Su Hui , Dan Carpenter , Boris Brezillon , Steven Price , Sasha Levin Subject: [PATCH 6.13 043/274] drm/panthor: avoid garbage value in panthor_ioctl_dev_query() Date: Wed, 19 Feb 2025 09:24:57 +0100 Message-ID: <20250219082611.211278228@linuxfoundation.org> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250219082609.533585153@linuxfoundation.org> References: <20250219082609.533585153@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 6.13-stable review patch. If anyone has any objections, please let me know. ------------------ From: Su Hui [ Upstream commit 3b32b7f638fe61e9d29290960172f4e360e38233 ] 'priorities_info' is uninitialized, and the uninitialized value is copied to user object when calling PANTHOR_UOBJ_SET(). Using memset to initialize 'priorities_info' to avoid this garbage value problem. Fixes: f70000ef2352 ("drm/panthor: Add DEV_QUERY_GROUP_PRIORITIES_INFO dev query") Signed-off-by: Su Hui Reviewed-by: Dan Carpenter Reviewed-by: Boris Brezillon Reviewed-by: Steven Price Signed-off-by: Boris Brezillon Link: https://patchwork.freedesktop.org/patch/msgid/20250119025828.1168419-1-suhui@nfschina.com Signed-off-by: Sasha Levin --- drivers/gpu/drm/panthor/panthor_drv.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/panthor/panthor_drv.c b/drivers/gpu/drm/panthor/panthor_drv.c index 0b3fbee3d37a8..44f5c72d46c3f 100644 --- a/drivers/gpu/drm/panthor/panthor_drv.c +++ b/drivers/gpu/drm/panthor/panthor_drv.c @@ -802,6 +802,7 @@ static void panthor_query_group_priorities_info(struct drm_file *file, { int prio; + memset(arg, 0, sizeof(*arg)); for (prio = PANTHOR_GROUP_PRIORITY_REALTIME; prio >= 0; prio--) { if (!group_priority_permit(file, prio)) arg->allowed_mask |= BIT(prio); -- 2.39.5