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 B8F2E509F05; Wed, 30 Sep 2026 16:05:34 +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=1790784339; cv=none; b=Ngh+DyuEU1hSz5R70OaW+iC0mVqskDtawBxxyUmBniBfzjw3DKIDGnh1xpCMSmjGvJIFuyMAVMKIgrR6CI6kO/UijcuQykljifHzWYrvS/GsqP8BKQv5h3fa5quqXxZSOkFvBb3FCqqgWLCfzRRVtTZoiao3inpE8OYeuiL4jHM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790784339; c=relaxed/simple; bh=E4bGQzFn0/pQJWNrL7viiASToiHX80GN7NBe886s+JQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=cyCjJsTKFzmETS16q/LE0Op5HiEmpjXuSC4FMyBqASJBLNU2ACQANwlyp3qCHIvt2pXE0rMxhTo4hGNCFBumxFD7eN0KV54Qt6nas0Aq8Xxwew5gFkDtP29YIbHFb19mzSxEd550pn6QMs6+uTwLksiy0sIeO01ZQOMoPj+bEWw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=kd6OAeMQ; 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="kd6OAeMQ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9D9BC1F00893; Wed, 30 Sep 2026 16:05:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790784332; bh=l93XVZwl1rifziIq4r/wHwprI3DsU92efD9MslSgQDM=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=kd6OAeMQwU3IeZykQtnpOtHudc7YbeYTymGPVPAj7bWcP5tKy4Ymz+OFEakyj5mf7 1p+K5RfRLxc/qIO0Myvh4D2uLOQAlHgmeAtjKqZ6SHYdiHCciNbWrJmAQp/BIDnHgY 1bLWoXZwAuZ2Kk8F/4U1f5S63X4cxWEyAG5PWaGo= 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 6.1 074/982] isofs: handle set_blocksize failures Date: Wed, 30 Sep 2026 17:13:30 +0200 Message-ID: <20260930152418.395007165@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260930152416.775402466@linuxfoundation.org> References: <20260930152416.775402466@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 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Christoph Hellwig [ Upstream commit 25ef4c4d9f0e96fb89c0ae0d7127c3f12a31bc32 ] isofs 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 Link: https://patch.msgid.link/20260511071701.2456211-8-hch@lst.de Signed-off-by: Christian Brauner (Amutable) Signed-off-by: Sasha Levin --- fs/isofs/inode.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c index e3052d3fe5dcd..8fd91f09086f1 100644 --- a/fs/isofs/inode.c +++ b/fs/isofs/inode.c @@ -859,7 +859,8 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent) * entries. By forcing the blocksize in this way, we ensure * that we will never be required to do this. */ - sb_set_blocksize(s, orig_zonesize); + if (!sb_set_blocksize(s, orig_zonesize)) + goto out_freesbi; sbi->s_nls_iocharset = NULL; -- 2.53.0