From nobody Sun Dec 14 08:04:12 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 57A66C00140 for ; Mon, 15 Aug 2022 19:55:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345637AbiHOTza (ORCPT ); Mon, 15 Aug 2022 15:55:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41832 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345475AbiHOTxb (ORCPT ); Mon, 15 Aug 2022 15:53:31 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 08CF43205A; Mon, 15 Aug 2022 11:51:43 -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 A97B6B810A0; Mon, 15 Aug 2022 18:51:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1650CC433D6; Mon, 15 Aug 2022 18:51:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660589500; bh=TxKAbx4QRMRivSlFf4ukwAugW2WTjATdCUdXwMbEo6w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lv3/okeiv1yeL6R35tpxVFk4JHyeasWAm2ag1NRnrhVasJu1K63ZvRElrtN+VpNKP kNTH3T5earBbb4Jx0TTkfLXOHCLRRAp/WHR1uPvgutyIXz4dZuVUvheUthhyhgcNfn JtsZxvfj7xu/acwsH+tWKdukNqZNvl3yq7IXM9eM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Mikulas Patocka , Mike Snitzer , Sasha Levin Subject: [PATCH 5.15 738/779] dm raid: fix address sanitizer warning in raid_resume Date: Mon, 15 Aug 2022 20:06:22 +0200 Message-Id: <20220815180408.984998844@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180337.130757997@linuxfoundation.org> References: <20220815180337.130757997@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: Mikulas Patocka [ Upstream commit 7dad24db59d2d2803576f2e3645728866a056dab ] There is a KASAN warning in raid_resume when running the lvm test lvconvert-raid.sh. The reason for the warning is that mddev->raid_disks is greater than rs->raid_disks, so the loop touches one entry beyond the allocated length. Cc: stable@vger.kernel.org Signed-off-by: Mikulas Patocka Signed-off-by: Mike Snitzer Signed-off-by: Sasha Levin --- drivers/md/dm-raid.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index 5f7e40c48e47..eba277bb8a1f 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -3824,7 +3824,7 @@ static void attempt_restore_of_faulty_devices(struct = raid_set *rs) =20 memset(cleared_failed_devices, 0, sizeof(cleared_failed_devices)); =20 - for (i =3D 0; i < mddev->raid_disks; i++) { + for (i =3D 0; i < rs->raid_disks; i++) { r =3D &rs->dev[i].rdev; /* HM FIXME: enhance journal device recovery processing */ if (test_bit(Journal, &r->flags)) --=20 2.35.1