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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 X-Spam-Status: No, score=-3.7 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_SOFTFAIL,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-ext4@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 = {