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 D52A72BAFC for ; Thu, 21 Mar 2024 05:20:03 +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=1710998403; cv=none; b=WRQOBMW8/z7bSbVxgdkJWzmpsZDjYmlk0RIXfttDejAAFZpThIdjP0M6mYnPaIa9thzHSv7r4nGWk7/IFp8beoKSu6cEOBj0zhOYFqNV+lMH0C6VoGYmDAAwSHS29COJ/wkYKp1wGAG3nFHq+p7IZ0SwckwVAtjWcMO8L64B0qE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710998403; c=relaxed/simple; bh=H6280AgSeSRgmEyu0p7yz+GmoAmLrPpqacRRd9MpYm0=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=MT1XtiEkfIcgaR7ufJCd9V6zJ6yiQo8AGo06qmA9s2EXJWnHAtZo3kfr6WZ9/ohbJb5HasbJqpRfkkV5nnamp+gYwA3plMS2O4DerPf7/GzhJtL83EF9kiIrZ3+5L5WEHRgNCM+enjlr21+pcinnKOl/vV02LDOwPSaQCGQl3lM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qgw+mg7U; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="qgw+mg7U" Received: by smtp.kernel.org (Postfix) with ESMTPS id 9E3BFC43394 for ; Thu, 21 Mar 2024 05:20:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1710998403; bh=H6280AgSeSRgmEyu0p7yz+GmoAmLrPpqacRRd9MpYm0=; h=From:To:Subject:Date:In-Reply-To:References:From; b=qgw+mg7UQKaYmU98t8Ub8hQi6jZefxq7YBl2D5RT9oOa2ulUsFFUvHCMxYMi2XrIO 7k3YvTrjCrTq6+EHluEkol6k736icCecCY+TCx2qoyqUHvg7L7S2zGNAyxSMOMd9Iv cHclowiJ/oSHWnDdve8w0SWkiHd0ZvweDbNU+7CcDKBIHMgvAoTECDpinD+ei9D4mB aWLM4ON6l/Lv42YFQqqsfyUOutf/Gj+QDAlC184atGeslXQQqgr72oc/b+jNR86vkJ VkYZLNRhbrTpICrilD3oOW2KKsPrZDUDZ9cAhpjyR2g1Lmma/GSEXDnP6t2Wftd6ig 2Tv7wxtTiRCag== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 937D6C53BD4; Thu, 21 Mar 2024 05:20:03 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-ext4@vger.kernel.org Subject: [Bug 218601] Regression - dd if=/dev/zero of=/zero causes shift-out-of-bounds && NULL pointer dereference, address: 0000000000000003 Date: Thu, 21 Mar 2024 05:20:03 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo fs_ext4@kernel-bugs.osdl.org X-Bugzilla-Product: File System X-Bugzilla-Component: ext4 X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: colin.kernel@i-pentest.info X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: fs_ext4@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D218601 --- Comment #8 from Colin (colin.kernel@i-pentest.info) --- Attached is the dmesg output of 6.8.1 built manually from vanilla sources u= nder Ubuntu 23.10 when running `stress-ng --class cpu --seq 32`.=20 A few things I find odd:=20 - If this was a bug, surely the hardware is not esoteric enough that nobody else would have experienced this?=20 - Again, it feels like this has 'gotten worse' since I first experienced it, and older kernel seem more stable - Building the linux kernel was segfaulting at different locations, I ended= up building it on another machine. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=