From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 C96803FADED; Tue, 26 May 2026 13:38:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779802706; cv=none; b=lX9/XOJUfRYyacre+suP8ggtHNlWR1mqLZKaqQV/eEZ4ERnugOfChLv3PrRg9fxIlU0+buGZJCf5r8ILWPcjeLy2MrRZjnvOwDPoNOhx+FstfkSaYu1Fk8VW1Sbj8nNGG0G3If9FtaRx6GwyHsdlVxyRPZDTfP61qprd5Sk5d+g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779802706; c=relaxed/simple; bh=bA2arLRw6MrFzjf4q674YQ3U0FDOAobtI8xjknfdPiQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=sel7I3TRxXmKPJgP9Bh7S6soLNEIlYg+dXBnGbF0JfUK6QF01CgTBgwCpWrZUiXHqR241E6uj46rTvCTH1T2Dj5nMSsRwitFGsod5WU4lA6ApP/L4N58HskqHV9rHTkmA4MpTzeGNbR+SyKolTStfTKfE3NFLSiwJax5iM3OfNg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=mfOfhKQH; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="mfOfhKQH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0FA6C1F000E9; Tue, 26 May 2026 13:38:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1779802705; bh=YmkPWGaUZd7ofALFSfwSQbmMqOkx/9YpJHcA7pI+x4c=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=mfOfhKQH98PCbed9Ss7W9LkrDIA+x0YoESNCd6CyAFsaD51FJZOCvgE7UdtoFXEIS xmGlbdyUkxOR3ggNNnLCilMfwpTbk9Wi2nPCdt+KMYB2IpuvgG+/LWjn3V2DAOCJf/ 3cXbVFxDF6ExDwwLdHQTYDVl1RegiKSVUzf3WWGQZ4WGy/1ke7OktKSlKMb+zHF2tI 8BZvOVHr2YLDnjy8fbcKszJ7WE+yrQT6m4a/HQN0VV7zVYKqH4l/jQ7hu+IrDskT2f z+frIKB1dck1kdSN6fA2nlgbo+iji5+CSOpw2vmU+clHAqRBKTb9dASOVDhy+2Mh8W nek3ZGBYBbWrQ== From: Sasha Levin To: stable@vger.kernel.org Cc: Sasha Levin , regressions@lists.linux.dev, willy@infradead.org, brauner@kernel.org, Oleg Chaun Subject: Re: Subject:[REGRESSION] fs/qnx6: incorrect pointer arithmetic breaks dir scanning completely Date: Tue, 26 May 2026 09:38:15 -0400 Message-ID: <20260526140000.agent5-0003@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Tue, May 26, 2026 at 12:40:12PM +0200, Oleg Chaun wrote: > Commit b2aa61556fcf ("qnx6: Convert qnx6_get_page() to > qnx6_get_folio()") breaks qnx6 readdir on 6.12, 6.18 and 7.0 by > dropping the QNX6_DIR_ENTRY_SIZE scaling in the entry-pointer > arithmetic. Thanks for the report. As Thorsten noted, Arpith already posted a fix at: https://lore.kernel.org/all/20260310102233.391113-1-arpithk@nvidia.com/ with Al Viro's review feedback still pending. There is no upstream commit to cherry-pick yet, so I cannot queue anything for stable until an upstream fix lands. -- Thanks, Sasha