From nobody Fri Dec 19 18:53:11 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 80FE4ECAAA1 for ; Mon, 24 Oct 2022 16:45:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234953AbiJXQps (ORCPT ); Mon, 24 Oct 2022 12:45:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35430 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234400AbiJXQoY (ORCPT ); Mon, 24 Oct 2022 12:44:24 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 16CB5CD5E6; Mon, 24 Oct 2022 08:30:41 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id ABBF8B818E4; Mon, 24 Oct 2022 12:38:51 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1956DC433D6; Mon, 24 Oct 2022 12:38:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666615130; bh=Zrt1TG9R7B7K0iehR7+m/EKVHsRtYzX75DOp8vvGmX0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=amJ4E1mXNh9/i9MiTtuWmaglBsBK/wXbNem/iZLgOOX/3FzoLeZ0SiwCo/4ioWKNc kPjHZHQr2nynTVYRLa4lGoIs3HGk9kWRwXdGwK8/D8UPdBQTbmJM1hS+3gUTDdhLv+ 9h6hHS3XoijSvQZxE5ZW7k8nak/TfLF7xYxTiEto= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, stable@kernel.org, Ye Bin , Jan Kara , Theodore Tso Subject: [PATCH 5.15 103/530] ext4: update state->fc_regions_size after successful memory allocation Date: Mon, 24 Oct 2022 13:27:27 +0200 Message-Id: <20221024113049.681180790@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221024113044.976326639@linuxfoundation.org> References: <20221024113044.976326639@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Ye Bin commit 27cd49780381c6ccbf248798e5e8fd076200ffba upstream. To avoid to 'state->fc_regions_size' mismatch with 'state->fc_regions' when fail to reallocate 'fc_reqions',only update 'state->fc_regions_size' after 'state->fc_regions' is allocated successfully. Cc: stable@kernel.org Signed-off-by: Ye Bin Reviewed-by: Jan Kara Link: https://lore.kernel.org/r/20220921064040.3693255-4-yebin10@huawei.com Signed-off-by: Theodore Ts'o Signed-off-by: Greg Kroah-Hartman --- fs/ext4/fast_commit.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) --- a/fs/ext4/fast_commit.c +++ b/fs/ext4/fast_commit.c @@ -1609,14 +1609,15 @@ int ext4_fc_record_regions(struct super_ if (state->fc_regions_used =3D=3D state->fc_regions_size) { struct ext4_fc_alloc_region *fc_regions; =20 - state->fc_regions_size +=3D - EXT4_FC_REPLAY_REALLOC_INCREMENT; fc_regions =3D krealloc(state->fc_regions, - state->fc_regions_size * - sizeof(struct ext4_fc_alloc_region), + sizeof(struct ext4_fc_alloc_region) * + (state->fc_regions_size + + EXT4_FC_REPLAY_REALLOC_INCREMENT), GFP_KERNEL); if (!fc_regions) return -ENOMEM; + state->fc_regions_size +=3D + EXT4_FC_REPLAY_REALLOC_INCREMENT; state->fc_regions =3D fc_regions; } region =3D &state->fc_regions[state->fc_regions_used++];