From patchwork Tue Nov 8 14:34:21 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Luis Henriques X-Patchwork-Id: 13036377 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 E7A52C43219 for ; Tue, 8 Nov 2022 14:33:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233916AbiKHOdp (ORCPT ); Tue, 8 Nov 2022 09:33:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40124 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233938AbiKHOdZ (ORCPT ); Tue, 8 Nov 2022 09:33:25 -0500 Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B6D22CEB; Tue, 8 Nov 2022 06:33:24 -0800 (PST) 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 359631F8E3; Tue, 8 Nov 2022 14:33:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1667918003; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=bsCWcDyBc5BTfKnK5tb7UxOWSDPa58fCHAcnTLeBXms=; b=y+2nS0vKe7LmELq2vRSmSOEf/AMQtUENZ5rsieWBjEqNWWKUIZgnlhq6h2c3S0QX4n1Mfw CAOSFDuMOKWYaHURp3/q1w1cBob1r5n1jNnhkazpheK4Pdiy1DPJr63XxU4cN3ZrHvYDZ+ KgciMrp9LQTL0cdyTC+1SRJMKiGuFiI= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1667918003; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=bsCWcDyBc5BTfKnK5tb7UxOWSDPa58fCHAcnTLeBXms=; b=jyLT7Vu1KKl0H4Nq4QzbhAEQEx/lhP1iUiYdPGzAfLNBQkoilo1/c8RYXDq5xs+w//XF/h gNT7ffrXs8GE+gDw== 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 C53B313398; Tue, 8 Nov 2022 14:33:22 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id bPopLbJoamPyMgAAMHmgww (envelope-from ); Tue, 08 Nov 2022 14:33:22 +0000 Received: from localhost (brahms.olymp [local]) by brahms.olymp (OpenSMTPD) with ESMTPA id 59105061; Tue, 8 Nov 2022 14:34:23 +0000 (UTC) From: =?utf-8?q?Lu=C3=ADs_Henriques?= To: Xiubo Li , Ilya Dryomov , Jeff Layton Cc: ceph-devel@vger.kernel.org, linux-kernel@vger.kernel.org, =?utf-8?q?Lu?= =?utf-8?q?=C3=ADs_Henriques?= Subject: [PATCH v2] ceph: fix memory leak in mount error path when using test_dummy_encryption Date: Tue, 8 Nov 2022 14:34:21 +0000 Message-Id: <20221108143421.30993-1-lhenriques@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: ceph-devel@vger.kernel.org Because ceph_init_fs_context() will never be invoced in case we get a mount error, destroy_mount_options() won't be releasing fscrypt resources with fscrypt_free_dummy_policy(). This will result in a memory leak. Add an invocation to this function in the mount error path. Signed-off-by: Luís Henriques --- * Changes since v1: As suggested by Xiubo, moved fscrypt free from ceph_get_tree() to ceph_real_mount(). (Also used 'git format-patch' with '--base' so that the bots know what to (not) do with this patch.) fs/ceph/super.c | 1 + 1 file changed, 1 insertion(+) base-commit: 8b9ee21dfceadd4cc35a87bbe7f0ad547cffa1be prerequisite-patch-id: 34ba9e6b37b68668d261ddbda7858ee6f83c82fa prerequisite-patch-id: 87f1b323c29ab8d0a6d012d30fdc39bc49179624 prerequisite-patch-id: c94f448ef026375b10748457a3aa46070aa7046e diff --git a/fs/ceph/super.c b/fs/ceph/super.c index 2224d44d21c0..f10a076f47e5 100644 --- a/fs/ceph/super.c +++ b/fs/ceph/super.c @@ -1196,6 +1196,7 @@ static struct dentry *ceph_real_mount(struct ceph_fs_client *fsc, out: mutex_unlock(&fsc->client->mount_mutex); + ceph_fscrypt_free_dummy_policy(fsc); return ERR_PTR(err); }