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 9712D5226AE; Wed, 30 Sep 2026 17:52:13 +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=1790790734; cv=none; b=Re2CixRaxEo1494AdImkg1/T46UfZWIUy1OP2I15KugAXT4it4Cku/OdZuyzbgj0GYwmQpbFVAdmY/d1yWZTu3hclmONP2JtzFjpR3WfXXEfwbJMj4A4UPJmW/v71m9WyvJSr5RhuCifg8xUes3bEEdDHzc8woRdt4Iz0ytAHaA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790790734; c=relaxed/simple; bh=mk1eQ1q0IYMHUiobH3GL7iUZc336ZfT4KtDY0dSrEz0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jOqgnIBcQoQ7gegPLMyhqd/QlWlUeYygazAN9NEZEcfDKNXM9oEGNob/+ROrhjdiVaVYn+T4Uc7P50rPeIRmRHXieaVBuukd04yFTsvMEewibBdH/Lwe/AeHhiiK3mKPD+GX6GWpBGJo0+x1TxRSq3vUpdYC8PJQCmuh2OvyG90= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=kL/we8cj; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="kL/we8cj" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EFC011F000FF; Wed, 30 Sep 2026 17:52:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790790733; bh=CgcQcKBrJTBUiTZ/d7gt8Zj/Nz4s44n2A8SA4buzD44=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=kL/we8cjM/B+RX7Db9wwqrssfJyETABAKcOglDdKAP8OA0VLu6FKKEHWBaDXuyES5 zE7ECYpotSfJ/+25s8rFblwFpYyyH0+TO/6F5gtRRs1Ce7zYm8/EYItteQOwrLx2Xo VnpQycclpeuAw+6hwvWytdmnf3TZ/O9J4Ad5AfKE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Christoph Hellwig , "Christian Brauner (Amutable)" , Sasha Levin Subject: [PATCH 5.15 055/752] omfs: handle set_blocksize failures Date: Wed, 30 Sep 2026 17:18:45 +0200 Message-ID: <20260930152359.348261557@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260930152358.131179731@linuxfoundation.org> References: <20260930152358.131179731@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Christoph Hellwig [ Upstream commit 18c3d6fcb557f920c9143711497625e70153874c ] omfs uses buffer_heads, which don't handle block size > PAGE_SIZE well. Without this, mounting we will hit the BUG_ON(offset >= folio_size(folio)); in folio_set_bh on the first __bread_gfp call. Signed-off-by: Christoph Hellwig Signed-off-by: Christoph Hellwig Link: https://patch.msgid.link/20260511071701.2456211-11-hch@lst.de Signed-off-by: Christian Brauner (Amutable) Signed-off-by: Sasha Levin --- fs/omfs/inode.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/omfs/inode.c b/fs/omfs/inode.c index 9773846daa4bc..760f675a73d92 100644 --- a/fs/omfs/inode.c +++ b/fs/omfs/inode.c @@ -480,7 +480,8 @@ static int omfs_fill_super(struct super_block *sb, void *data, int silent) sb->s_time_min = 0; sb->s_time_max = U64_MAX / MSEC_PER_SEC; - sb_set_blocksize(sb, 0x200); + if (!sb_set_blocksize(sb, 0x200)) + goto end; bh = sb_bread(sb, 0); if (!bh) @@ -532,7 +533,8 @@ static int omfs_fill_super(struct super_block *sb, void *data, int silent) * Use sys_blocksize as the fs block since it is smaller than a * page while the fs blocksize can be larger. */ - sb_set_blocksize(sb, sbi->s_sys_blocksize); + if (!sb_set_blocksize(sb, sbi->s_sys_blocksize)) + goto out_brelse_bh; /* * ...and the difference goes into a shift. sys_blocksize is always -- 2.53.0