From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from cmx-mtlrgo001.bell.net (mta-mtl-008.bell.net [209.71.208.31]) (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 EAE822E54B6 for ; Mon, 6 Apr 2026 07:57:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.71.208.31 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775462278; cv=none; b=f71RGJSfyHwBC1R8SZKmyzlzrZrCfWT8C+UpvnbLMi2PLitbrgwXaFZxivcIuT9jC6W+8lO5qlXfaHQ0Ydnj46RgcL3U0d0FMHeEc7wCoTQ31jooNwqyXnUWNPQgUdTovPJ2A+o7/M/+QzQiaH1EnO+gtzH3aqL4GcJ0/3N3s1E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775462278; c=relaxed/simple; bh=c0N7m5z8hZVNWJq5uAs4Kn5/y5ehEpZ/+gE27TP3eAA=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=HedOrtItavmiDWcboUcne8rJfdONTeiiiWBkGktVvqttnTQvoiSGHGUXqUd1pQkpyskFV/qix+JzTO5hzVVzlLibhExmJ6FNBvl6Vu7Sdr0lu1cKOak1EwZKQE4I1CytkdmBrllovyOX1XBNlTlP9cMgJHo/yjlVzhh5L6dTEKc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bell.net; spf=pass smtp.mailfrom=bell.net; dkim=pass (2048-bit key) header.d=bell.net header.i=@bell.net header.b=c0xknJNm; arc=none smtp.client-ip=209.71.208.31 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bell.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bell.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bell.net header.i=@bell.net header.b="c0xknJNm" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bell.net; s=selector1; t=1775462277; bh=ee/ibGxRB7ZMYV1LgEYDA/tCFpV2VxAtOGiEdEyBcsk=; h=Message-ID:Date:MIME-Version:Subject:To:References:From:In-Reply-To:Content-Type; b=c0xknJNmf3u68zTBvOBOnScKqzfrRoLNyoU4h4WvvRNY2CDwIh+2+eGRrOQXxjCelUArB7bM5NeYohYCf4GW1/loLHwMVJ7YAzc5354ofvK2BFi0o/8WPiA+JFPhAe4ACqohIMwHqB2FPRO+UXslcHi3tghj1b7ppZT2UfN/D+enKT3Pvrq8ZsiQopKlZeHCh+wjtFgmA9vi0IB/gu1PJPwFOyTRWIrmwSD1lGgRAG13FGZ/sVZnm/rhAG6Z85F82dJa9fhp2dLoHaG7KC0OOa0AYKAkfHPUWt0pVunL/1g9VnpGR5EfAIYNqvzl68+SEM89XeIO+o06XfNhlWUBhA== X-RG-SOPHOS: Clean X-RG-VADE-SC: 0 X-RG-VADE: Clean X-RG-Env-Sender: matt.fagnani@bell.net X-RG-Rigid: 69BEEF93021C3F91 X-RazorGate-Vade: 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 X-RazorGate-Vade-Verdict: clean 0 X-RazorGate-Vade-Classification: clean Received: from [192.168.2.10] (70.48.33.60) by cmx-mtlrgo001.bell.net (authenticated as matt.fagnani@bell.net) id 69BEEF93021C3F91; Mon, 6 Apr 2026 03:54:40 -0400 Message-ID: <35ed8f9a-66c2-40c3-a545-da4af629014f@bell.net> Date: Mon, 6 Apr 2026 03:54:39 -0400 Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Thunderbird Daily Subject: Re: Warnings and errors in drm_mode_config_cleanup when booting 6.19.10 and 7.0-rc5 To: Greg KH , Thorsten Leemhuis Cc: dri-devel@lists.freedesktop.org, stable@vger.kernel.org, "regressions@lists.linux.dev" References: <9652ce0b-bb4c-489d-9e32-89c5af5c8101@leemhuis.info> <2026040259-glacial-reversal-9a75@gregkh> Content-Language: en-US From: Matt Fagnani In-Reply-To: <2026040259-glacial-reversal-9a75@gregkh> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 2026-04-02 08:12, Greg KH wrote: > On Sat, Mar 28, 2026 at 11:52:48AM +0100, Thorsten Leemhuis wrote: >> Matt, thx for the report. >> >> On 3/28/26 11:30, Matt Fagnani wrote: >>> I could try to bisect. The commit >>> e493c135980f90c20308d1a98f2e0d1223951e94 drm: Fix use-after-free on >>> framebuffers and property blobs when calling drm_dev_unplug was included >>> in 6.19.10 and changed drm_mode_config_cleanup https://git.kernel.org/ >>> pub/scm/linux/kernel/git/stable/linux.git/commit/? >>> h=linux-6.19.y&id=e493c135980f90c20308d1a98f2e0d1223951e94 >> Did a quick search. Turns out this is mainline commit 6bee098b914176 >> ("drm: Fix use-after-free on framebuffers and property blobs when >> calling drm_dev_unplug") -- and when searching for that (FWIW, this is >> not widely known, but that is really helpful in case like this, as the >> mainline commit id is way more relevant) is turns out that is in the >> process of getting reverted: >> >> See https://lore.kernel.org/all/20260326082217.39941-2-dev@lankhorst.se/ >> or 45ebe43ea00d6b ("Revert "drm: Fix use-after-free on framebuffers and >> property blobs when calling drm_dev_unplug"") [next-20260327 >> (pending-fixes)]. >> >> Sasha and Greg: you might want to make sure to pick this up. > When it shows up in a Linus-released kernel, can someone remind us? > > thanks, > > greg k-h 7.0-rc7 https://lwn.net/Articles/1066405/ had the patch Revert "drm: Fix use-after-free on framebuffers and property blobs when calling drm_dev_unplug" https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v7.0-rc7&id=45ebe43ea00d6b9f5b3e0db9c35b8ca2a96b7e70 Thanks. Matt