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 62375E56A; Tue, 7 Apr 2026 05:43:32 +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=1775540613; cv=none; b=b5bjBVKHRtsS4i4hW+6yHsaaeoHMJ1sUk2TrxovZg/oqQz4z9FM9IlEGUr6xi+JGyyz4nqohZ3w8P9JslX+cgAr+f6il3aFaNDT8zKQYP3rKSFhDFTfVRF+wlKs2l3Afypw47Y2NUFHnD6FNZO0EpU1xqltzaAA7zWp/8/r+Djg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775540613; c=relaxed/simple; bh=Kq9j99vlihk6BLvc+kL+dt1Kvh+X8pe7JMWWCQhMgZw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Y13tIXTCQJAWU2bRubXdnaTBz9fsLLkzbMHxNoolQe1GbwvpZT848cbn8NhvBJssajoYKpl26P/hQ01x9usJqRDr4wixISBidownBsjThTGa9kxvPqF+f9wZAhbdujCJ8H/soyp9LynKBxErX0z0whUMmknxnvonNnMO8EZeUWI= 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=TYU3ayYz; 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="TYU3ayYz" 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=x+42DFPZ8ULgrHQutIzRZwYEFns9pt8l/Mw1UAOJAmg=; b=TYU3ayYzEvIBrZW8cd3Dy/wxHL S4/mCLrIWigZ2hi/Q29Hgh+oZteURHm7V79KGQD4t6IhlRHH4NbUSnsUBGBmUZpM19A3tcW/UzDEc ElEd3YbqkMeBPIw5r9ZRMFVCMCYnqNNG9VoDMZr1ESPilwEC0rwFGFOmvs6tvYZNUrwNpp3XtkQr3 r8vWBUchhsRvLxkobTA4cjsZ5h+3w64oC38hcdqrkH5vgiTZPGn2yNFMXJx2ki+QxyX7SbavEwjU7 UtIPpUlYp4bjT16EAjLLu24xZJmj1ZaLvEWqaYk73kfUDkwoCuL9O9mvYSP+hXLKIXNdH9uqwXo7c yHsmET7A==; Received: from hch by bombadil.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1w9zDm-00000005wMC-3Web; Tue, 07 Apr 2026 05:43:30 +0000 Date: Mon, 6 Apr 2026 22:43:30 -0700 From: Christoph Hellwig To: Brian Foster Cc: Edward Adam Davis , syzbot+b7dfbed0c6c2b5e9fd34@syzkaller.appspotmail.com, cem@kernel.org, linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [PATCH] xfs: reject CRC validation when the log header cannot be retrieved Message-ID: References: <69cebb99.050a0220.2dbe29.0007.GAE@google.com> Precedence: bulk X-Mailing-List: linux-xfs@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: X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Mon, Apr 06, 2026 at 10:12:22AM -0400, Brian Foster wrote: > Have you dug into how syzbot triggers this issue? There is no syzbot reproducer yet. Unfortunately the patch submitter has a history of jumping on unverified syzbot reports and then submitting speculative patches based on wrong conclusions. I'd recommend to ignore him when he does that, which means basically always. Hopefully we'll eventually get a syzbot reproducer and can then do an actual analysis.