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 B423B29C328; Wed, 20 May 2026 00:54:28 +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=1779238469; cv=none; b=jG2fTVLFR5izXnqaHjIH6JDH0AX5jjGRx06BKSJb+fsUiND5DGl+CY+R4Na3+X5cAZBub4++bGr7SQgb52f3N31w+z2wWtqhBUvkRYaNBA2UumWtbPrLyQX0i5NfizIN5c/fN8ds7eh3JakxBRrdJipZnGxx7CzE16lizBCH6A4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779238469; c=relaxed/simple; bh=wtr1MGYxvmZx6lIlyMwQcI3r28Ttp6Pqw5OIfriaaIs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=G+uTv46ntnGOlsC0RyXI0M2PfAKrBVef55RsGfZORLQAK5dL0d7hS/PMfM4MgIzRrCVBQBFVgzYUEJgP+tNl9I/CnmLg0i1h+0ZcfmRHxa0QRC8j6rmEBAd1a+PluFaypODAM4F0ji36KlGxjCyECCFKGi/1RWpcy5D0YbIusJY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Xtv/Hz0d; 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="Xtv/Hz0d" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 85BFB1F000E9; Wed, 20 May 2026 00:54:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1779238468; bh=Kc4bQ0foB5Cii1TppaHU26bKVUYO25JGOtK4mN0+IZw=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Xtv/Hz0dhBBA/6sHbwl9MC2rIl9Dtqrb3s+TPRmqWTHK9chp+HTPC02dBkNDPBLxu 4xkmJc56//LgyLVKQwiqKymk5VOR+6opHmkJuvkKOsdibC51YOkz8Vnp7kVhniHNYn YTXHeU0P4ISc2WGAyVoBAxcgU0SxZAPGgGoUzD63QuomHKHKKur1rGX3Vmbk/CPJvO FPZWnfIedZho7PM7SYBCCYHcXsTqKOcIBFiJxvrbiFC6fcU4MepS36xldXSHxwnOmZ YnoKgyqeH5JqH0g+NdAsMtBS6zTLG07WRAVQTyTUQIfZqY6YzVimx+lmASrTb4np5u PeRiTM5CAqjww== From: Sasha Levin To: stable@vger.kernel.org Cc: Sasha Levin , gregkh@linuxfoundation.org, miklos@szeredi.hu, joannelkoong@gmail.com, linux-fsdevel@vger.kernel.org, leitao@debian.org, Vlad Poenaru Subject: Re: [PATCH 6.18.y v2] fuse: avoid 0x10 fault in fuse_readahead when max_pages == 0 Date: Tue, 19 May 2026 20:54:17 -0400 Message-ID: <20260519220508.reply-0003@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260519174816.3983940-1-vlad.wing@gmail.com> References: <20260519174816.3983940-1-vlad.wing@gmail.com> 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 19, 2026 at 10:48:16AM -0700, Vlad Poenaru wrote: > [ Upstream commit 4ea907108a5c ("fuse: use iomap for readahead") ] > > The upstream fix is the iomap conversion in commit 4ea907108a5c > ("fuse: use iomap for readahead"), which rewrote fuse_readahead() > entirely and removed the buggy loop along with it. That refactor > is too invasive to backport to the pre-iomap readahead path still > used by 6.18.y (and earlier stable branches), so this is a minimal, > equivalent fix to the same bug on those branches. [...] > Fixes: 3eab9d7bc2f4 ("fuse: convert readahead to use folios") > Reported-by: Breno Leitao > Reviewed-by: Joanne Koong > Signed-off-by: Vlad Poenaru Queued for 6.18, thanks. -- Thanks, Sasha