From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from victorique.vermwa.re (victorique.vermwa.re [5.255.86.113]) (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 0B9E3283C94 for ; Tue, 6 May 2025 15:24:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=5.255.86.113 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746545060; cv=none; b=U1Tyc476W5cDStl4e+IkrlegUCYLYlDsfSW+a3BjVgnyiOYJzct1NvluqVLLdllB41CgUIB1GLajgSgub1Np3FSErgMvmM4lvE4OvrGfG36oDJ50zKWgV+qNi+LC5L/6JlA/VvLHNtEhn7yyqEmkysb87xjZU37tdIP22HIW0TY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746545060; c=relaxed/simple; bh=0mynB4iGh4NmJ0VBWm5ypjuurHH13dAj+fnzLZQA75s=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=puX1nl0uiLsU5l9gk/z0kwwfMhMacM5p0a+kl+2SGQW+OACFXe9D2sl66HDyuvxmZZ3eYdDuB15FPHMFYpBeVcQJQ7craEZpuCPf31Hu4qrolw4L/qf1SD+Xn8sWI9+W2y5WVVaSB6MSS8AQubqbpERVIoOjAQ3zd2/MpPDvXrY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=vermwa.re; spf=pass smtp.mailfrom=vermwa.re; arc=none smtp.client-ip=5.255.86.113 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=vermwa.re Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=vermwa.re Received: from victorique.vermwa.re (localhost [IPv6:::1]) by victorique.vermwa.re (Postfix) with ESMTP id 5B47CA00BC; Tue, 6 May 2025 17:16:21 +0200 (CEST) Received: from verm-r4e.localnet ([fd17:3171:f888:364d::1000]) by victorique.vermwa.re with ESMTPSA id kPX4FMUnGmhu2wgAjH0QZw (envelope-from ); Tue, 06 May 2025 17:16:21 +0200 From: Melvin Vermeeren To: Yu Kuai , Greg Kroah-Hartman , Salvatore Bonaccorso Cc: 1104460@bugs.debian.org, Coly Li , Sasha Levin , stable , regressions@lists.linux.dev Subject: Re: [regression 6.1.y] discard/TRIM through RAID10 blocking (was: Re: Bug#1104460: linux-image-6.1.0-34-powerpc64le: Discard broken) with RAID10: BUG: kernel tried to execute user page (0) - exploit attempt? Date: Tue, 06 May 2025 17:16:15 +0200 Message-ID: <4657023.LvFx2qVVIh@verm-r4e> Organization: vermware In-Reply-To: References: <174602441004.174814.6400502946223473449.reportbug@talos.vermwa.re> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart2375347.ElGaqSPkdT"; micalg="pgp-sha512"; protocol="application/pgp-signature" --nextPart2375347.ElGaqSPkdT Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="utf-8"; protected-headers="v1" From: Melvin Vermeeren Date: Tue, 06 May 2025 17:16:15 +0200 Message-ID: <4657023.LvFx2qVVIh@verm-r4e> Organization: vermware In-Reply-To: MIME-Version: 1.0 Hi Salvatore, I had been unexpectedly busy the past week, caught up to all the mails just now. Many thanks to everyone involved and the additional information from several people, am happy to see it. On Wednesday, 30 April 2025 17:55:20 Central European Summer Time Salvatore Bonaccorso wrote: > Melvin, the same change went as well in other stable series, 6.6.88, > 6.12.25, 6.14.4, can you test e.g. 6.12.25-1 in Debian as well from > unstable to see if the regression is there as well? Specifically for this, I did just now test this with Debian testing's 6.12.25-1, albeit on amd64 instead of ppc64le, with an identical storage layout and can confirm the issue does *not* exist there. This confirms what others already discovered by now, I agree with the findings and have nothing to add specifically. Thanks again to all, -- Melvin Vermeeren Systems engineer --nextPart2375347.ElGaqSPkdT Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. Content-Transfer-Encoding: 7Bit -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEiu1YAh/qzdXye6Dmpy9idxbqnZYFAmgaJ78ACgkQpy9idxbq nZZCSw//Tdvc2ZE1nRA2KU7URHqkRIaXInr3PJkPpxb1uAfogjZI9Gku31jX+4f5 j4BSv0i/RPBIOo+THXMrgwBPHEs4eMY8JDiuXkLS2jj7p7VQdDlBqZG06MxGArGg VehqHf2dQVV7L0XdTb/kJfmT5HEUVikZKN+aDL+iBdFdw6x38ncimYiGbeaC3JKB NwWuOnYoNokDsaGjX59cV84p8TnBTL+ev1K3ghVJ1gdT0bNC+cgH8hpwAZ+/5Mey 9jmX00mFizQSbx/goQk3SB4NzqlTSPn5k17WL/XNxHCVim4soelTfREUzTGSXKfz 9WCxJxJEPk3ejAq4Ncd3D4Nm8yKxmtI9egeXAXXz5Ys+DvEdCsBr4JrvhXttlqag 8Eyv/Nym/sTSo0zYvnAXK8+DIvByOnR2XlSuG3nObNxm3eSBIHCqA1xyI/1D+rgg y6iYwCRiXEdMS3E12lp33+CoPCIhLjD52ESsx1ycxxgzA/3QdGfMZayZPyuWqV87 xQC9HJpGj1bM97hw6hBFe2qxqPCrbNiC7GymrFt3Q1A47+jfhttu7rHRxg6bxF/B 2reM9emRPT/np2wlAB3/9tc+xR4d97Cii4P7fruyBs0ntcHWzx3vCb4SdwQa6R/k eTTwX41teU9hkQLIG5pPHg57HGmZHhVJJu7Plb88jKRXj9MDBQg= =ogZ0 -----END PGP SIGNATURE----- --nextPart2375347.ElGaqSPkdT--