From patchwork Wed Jun 21 14:47:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Kara X-Patchwork-Id: 13287447 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 D81BFC001DB for ; Wed, 21 Jun 2023 14:48:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229976AbjFUOsG (ORCPT ); Wed, 21 Jun 2023 10:48:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56772 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232118AbjFUOr5 (ORCPT ); Wed, 21 Jun 2023 10:47:57 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DB70F1BCB; Wed, 21 Jun 2023 07:47:46 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 570DA1FECB; Wed, 21 Jun 2023 14:47:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1687358865; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=QWUOtp0iwu/9Qa0OVnEO54KvtodKK3z2Yy7Kvf+nwDE=; b=spZwbLy7WTEzmCG4IMRKQcBb3oB/aSMNtEjvoswtRfWZzVDvghsD5pMwYwaZxYquv0jqYf YcAGwzQPCRk3PBncB9u2KOnsFAgy3rxJuwJydd5bw8pFRXy4lzQ+Wz3fp8hSCgE6RCXtAy 34vS7wfHeG2WTI41bOoDyjVMQNkpESY= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1687358865; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=QWUOtp0iwu/9Qa0OVnEO54KvtodKK3z2Yy7Kvf+nwDE=; b=YS9AuQ78ENZBIpT+YMAxs3pUdZCQBG02Y9BNmpyyomSr+5pEuDZlRnut4qwFav1kcoKNJg xrOBheTKgL0AAQCQ== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 3FF70133E6; Wed, 21 Jun 2023 14:47:45 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id ISQRD5ENk2T7EAAAMHmgww (envelope-from ); Wed, 21 Jun 2023 14:47:45 +0000 Received: by quack3.suse.cz (Postfix, from userid 1000) id C88E1A0439; Wed, 21 Jun 2023 16:47:44 +0200 (CEST) From: Jan Kara To: Jens Axboe Cc: , Christoph Hellwig , , , Jan Kara Subject: [PATCH 1/2] ext4: Fix crash in ext4_bdev_mark_dead() Date: Wed, 21 Jun 2023 16:47:42 +0200 Message-Id: <20230621144744.1580-1-jack@suse.cz> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230621144354.10915-1-jack@suse.cz> References: <20230621144354.10915-1-jack@suse.cz> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=831; i=jack@suse.cz; h=from:subject; bh=fVkRZ23tC1duoGWpYIOUWQFn7i7gXQuatR9LkqpoylM=; b=owEBbQGS/pANAwAIAZydqgc/ZEDZAcsmYgBkkw2Nz9dPYRfxuj98FpO6uTFrTKYBBa85oPM//MLy caQyHJuJATMEAAEIAB0WIQSrWdEr1p4yirVVKBycnaoHP2RA2QUCZJMNjQAKCRCcnaoHP2RA2XS/CA CUkx2kfMmw1VtFu0zZfSoq9OorFMl6+eWvqt5avVVd9qqI+jUKlzqcJOuJZkufV0dkWnfUN5XKXMha Hh55mhrpH+G5Hq9Pkwcqk4YCAoHCS9GdIMIe6z2RW6mZo5qfEFOFjr7SgaNk2iDikQTRyFYAVxQfft x37meRh8o2HaGqj1bIbRfeqpbMMYP4BacrIfKM0XHSEuYpDZbXdEiYR+IoYZftU6gOp/lr0V9/nBk2 R4C9TIwZcJK2IEYNvFBjZefwBLuriM90kWdeXwZI4BDZJtViF+UOoyhQhnUUgecMSPkUej5L3fcRu7 Zul/dHMFfegtba8HHutOXxoZlahwT8 X-Developer-Key: i=jack@suse.cz; a=openpgp; fpr=93C6099A142276A28BBE35D815BC833443038D8C Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org ext4_bdev_mark_dead() passes bdev->bd_holder to ext4_force_shutdown() instead of bdev->bd_super leading to crashes. Fix it. Fixes: dd2e31afba9e ("ext4: wire up the ->mark_dead holder operation for log devices") Signed-off-by: Jan Kara --- fs/ext4/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 6f43a86ecf16..53d74144ee34 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1098,7 +1098,7 @@ void ext4_update_dynamic_rev(struct super_block *sb) static void ext4_bdev_mark_dead(struct block_device *bdev) { - ext4_force_shutdown(bdev->bd_holder, EXT4_GOING_FLAGS_NOLOGFLUSH); + ext4_force_shutdown(bdev->bd_super, EXT4_GOING_FLAGS_NOLOGFLUSH); } static const struct blk_holder_ops ext4_holder_ops = {