linux-kernel - Re: [PATCH v3] drm: Account property blob allocations to memcg

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Message-ID: <176855919221.1290479.4679401019876597826.b4-ty@kernel.org>
Date: Fri, 16 Jan 2026 11:26:34 +0100
From: Maxime Ripard <mripard@...nel.org>
To: maarten.lankhorst@...ux.intel.com,
	tzimmermann@...e.de,
	airlied@...il.com,
	simona@...ll.ch,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	Xiao Kan <814091656@...com>
Cc: Maxime Ripard <mripard@...nel.org>,
	w@....eu,
	security@...nel.org,
	kanxiao666@...il.com,
	xiao.kan@...sung.com
Subject: Re: [PATCH v3] drm: Account property blob allocations to memcg

On Wed, 14 Jan 2026 08:22:26 -0500, Xiao Kan wrote:
> DRM_IOCTL_MODE_CREATEPROPBLOB allows userspace to allocate arbitrary-sized
> property blobs backed by kernel memory.
> 
> Currently, the blob data allocation is not accounted to the allocating
> process's memory cgroup, allowing unprivileged users to trigger unbounded
> kernel memory consumption and potentially cause system-wide OOM.
> 
> [...]

Applied to misc/kernel.git (drm-misc-next).

Thanks!
Maxime