From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 52E16F4BB72 for ; Wed, 25 Feb 2026 10:15:42 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 47A9810E734; Wed, 25 Feb 2026 10:15:40 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=lankhorst.se header.i=@lankhorst.se header.b="KflmgFfc"; dkim-atps=neutral Received: from lankhorst.se (unknown [141.105.120.124]) by gabe.freedesktop.org (Postfix) with ESMTPS id 49A1E10E229; Wed, 25 Feb 2026 10:15:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=lankhorst.se; s=default; t=1772014536; bh=bcKeBLFA7r09gergzTg5pIlB76wIyA8EmIDez8Nds/k=; h=From:To:Cc:Subject:Date:From; b=KflmgFfcUjSwA9qLCh1cybV9mO5O6HCk5Ve7Kmhe8oF2jTlrxO+aZ4BQpa7MtHOgn YZrxciX/19hZB38uNNvNy9Xb35+IxSI9ST4ce7UjGiLxYQ+G8vAqOcDkhOj7JEGYUu hRcdjxykZV8SBGDAYV13b6AWIlFFyPvJni2QDqcVeyfCl5Mt4oq3m2YSm1FdAv5hJN rUJ4iK+/QLHd8cDh8mq4giTW3PbNMmhhBTAkXXspCi6iyfSEmFyLfS5/NJ9swYmIrT C5sP0WOGVFuOi/FIj/9+nV788QUGIgdlF51FfuN3XVNR5vszCIeu/05OLNeODcHvcz l5XhmnW7Ede8w== From: Maarten Lankhorst To: dri-devel@lists.freedesktop.org Cc: intel-xe@lists.freedesktop.org, Maarten Lankhorst Subject: [PATCH 0/1] Fix use-after-free on framebuffers and property blobs when calling drm_dev_unplug Date: Wed, 25 Feb 2026 11:15:33 +0100 Message-ID: <20260225101532.13260-3-dev@lankhorst.se> X-Mailer: git-send-email 2.51.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" I tried to see what happened with xe_module_unload --r reload on a fully running system, and came across these bugs in the kernel. Even after these fixes I still see a hang when reloading, related to cgroups, so likely some more fixes are needed to address those. Should this patch have a fixes tag or cc stable patch? Test-with: https://patchwork.freedesktop.org/series/162133/ Maarten Lankhorst (1): drm: Fix use-after-free on framebuffers and property blobs when calling drm_dev_unplug drivers/gpu/drm/drm_crtc_internal.h | 4 +++- drivers/gpu/drm/drm_drv.c | 3 +++ drivers/gpu/drm/drm_file.c | 5 ++++- drivers/gpu/drm/drm_framebuffer.c | 25 +++++++++++++++++++++++++ drivers/gpu/drm/drm_mode_config.c | 8 ++++++++ drivers/gpu/drm/drm_property.c | 20 ++++++++++++++++++++ 6 files changed, 63 insertions(+), 2 deletions(-) -- 2.51.0