From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 4D4B23B8D67; Fri, 12 Dec 2025 05:16:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765516577; cv=none; b=jQUoTOuRHbi1yh0kSUkkJBdCAqfPmaIAhD5c9iXN2QzrYJj739VVXyfoPqMZbnFFwqfUp9MuToWT10mev+kl0Ee2CMjGo7abqmXSsDeqYDQlc+KwQ5HzRliU8S/p+tmyAy2GZXaXndBOmaVnnghFhI0YvezrxeYieY4YjDpadxs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765516577; c=relaxed/simple; bh=Q6E1/e/8ZkTKJNYKc2gfQbgcOGWsdJSVktsVdR9oAA8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=lZ5Q/iz9n4gvkI+dDTz2HbJKlkCrlgFYiQ5/ll8r8BLa4FN2t5/P3XEHMh0XPpMk44jrEHXQPCbfX5wbHK6xSE9AsFnxV0MM6Ibzaf7i+Byj921Y1DTmODiAv5Rp81lSWAkQ2a2IopfQUwdM8GkDLCYRNgF8MXWEMX/Sfl2cw7g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=fsqAifHt; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="fsqAifHt" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=Q6E1/e/8ZkTKJNYKc2gfQbgcOGWsdJSVktsVdR9oAA8=; b=fsqAifHtakDw5cRi0bRYrbV2Yp B1Wwvhp4H+xWSeO7rafWvgAbPZXNWR7IWeTQJ3TcI2kLYwdU6w5UnlsAssy9AFKCJ4XZX5zt0fhyS Pq4xWsNIF2k4lyDg8Ok2hNXHAjnonc78F6rWC0qV4hysDIMsTO7rprRfyuvPVuguLnqLpA3oqzs7V Ul2+jTklj3CoCQgEP05vuT/D028O/PIUSc/6NFwL9CtN+1bUDMroVp6jFjyl40CjcMoQ04DuZLvHY gsR10RJVeLRYKhPcL2Z0LZjMveeKyk/QyD+3qxhN9SyTpjtwcJqJCckhVCzYGelcw7ZS8zTt2Q2Fj 3hYV1aGQ==; Received: from hch by bombadil.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1vTvVZ-000000006O2-2wOu; Fri, 12 Dec 2025 05:16:01 +0000 Date: Thu, 11 Dec 2025 21:16:01 -0800 From: Christoph Hellwig To: "Darrick J. Wong" Cc: Eric Biggers , syzbot , davem@davemloft.net, herbert@gondor.apana.org.au, jaegeuk@kernel.org, linux-crypto@vger.kernel.org, linux-ext4@vger.kernel.org, linux-fscrypt@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, tytso@mit.edu, Neal Gompa Subject: Re: [syzbot] [ext4] [fscrypt] KMSAN: uninit-value in fscrypt_crypt_data_unit Message-ID: References: <68ee633c.050a0220.1186a4.002a.GAE@google.com> <69380321.050a0220.1ff09b.0000.GAE@google.com> <20251210022202.GB4128@sol> <20251211185215.GM94594@frogsfrogsfrogs> Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251211185215.GM94594@frogsfrogsfrogs> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Thu, Dec 11, 2025 at 10:52:15AM -0800, Darrick J. Wong wrote: > Hey waitaminute, are you planning to withdraw fscrypt from ext4? No really, just forcing to use one of the two current implementations of the I/O path. > (I might just not know enough about what blk-crypto is) block/blk-crypto*