From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7503B2DAFAE; Tue, 8 Jul 2025 16:54:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751993682; cv=none; b=USpQOXFSklc+0gMQmIVxl2GCWluA8b4fSaHdvTTqE7RSKqWoNz1ZGUZPCMJQXMhtpSA6wDCRR/pGI83vEbptFcM0+2UJ7JBmTqMqEiMs+aHtk0B6Bmo9pXfwpWRlHf3SVi/biomp+yjzSEeprA+NWgrNBeuPI1I4sP8HB2p4qWI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751993682; c=relaxed/simple; bh=sSML05HhxSNeXBMZXe3AAuBoRzs2ynHx7gwOH1cqI+o=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=qa/HyCKATK9qERQYmj5cd4rrlbEVZhdZYT77AogKXMpUiyIeD3GLRZ1EqvB4boA3W5IbtMOXqAuXckm31dGiPORWwCnjljSYJKl7XSJ2D9XeLh2iRCy48gZlCHHChmaIH3M3FSTXzJTNUK3WS92XGPMTO9SCs8Ya/uY4DTbWX78= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=qSFcr4Is; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="qSFcr4Is" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AFBC1C4CEED; Tue, 8 Jul 2025 16:54:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1751993682; bh=sSML05HhxSNeXBMZXe3AAuBoRzs2ynHx7gwOH1cqI+o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qSFcr4IsTEaQBBn6oUrd8PM+oVO6hyCYfRDQ3AE/akX/JYkly5jq4X8U9b4QE7t9y 7EkoPTdhY2qsTKxyg9JDylxQrHfcWaKyuddEPE3M51kpxZpsXqYXKyE7HKfTjJ2XUf KsrWEQjB3mtCOBjkAyn5vapwCQum1sSHTPIOeGXU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Shyam Prasad N , "Paulo Alcantara (Red Hat)" , Steve French Subject: [PATCH 6.15 157/178] cifs: all initializations for tcon should happen in tcon_info_alloc Date: Tue, 8 Jul 2025 18:23:14 +0200 Message-ID: <20250708162240.594843845@linuxfoundation.org> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250708162236.549307806@linuxfoundation.org> References: <20250708162236.549307806@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Shyam Prasad N commit 74ebd02163fde05baa23129e06dde4b8f0f2377a upstream. Today, a few work structs inside tcon are initialized inside cifs_get_tcon and not in tcon_info_alloc. As a result, if a tcon is obtained from tcon_info_alloc, but not called as a part of cifs_get_tcon, we may trip over. Cc: Signed-off-by: Shyam Prasad N Reviewed-by: Paulo Alcantara (Red Hat) Signed-off-by: Steve French Signed-off-by: Greg Kroah-Hartman --- fs/smb/client/cifsproto.h | 1 + fs/smb/client/connect.c | 8 +------- fs/smb/client/misc.c | 6 ++++++ 3 files changed, 8 insertions(+), 7 deletions(-) --- a/fs/smb/client/cifsproto.h +++ b/fs/smb/client/cifsproto.h @@ -136,6 +136,7 @@ extern int SendReceiveBlockingLock(const struct smb_hdr *out_buf, int *bytes_returned); +void smb2_query_server_interfaces(struct work_struct *work); void cifs_signal_cifsd_for_reconnect(struct TCP_Server_Info *server, bool all_channels); --- a/fs/smb/client/connect.c +++ b/fs/smb/client/connect.c @@ -97,7 +97,7 @@ static int reconn_set_ipaddr_from_hostna return rc; } -static void smb2_query_server_interfaces(struct work_struct *work) +void smb2_query_server_interfaces(struct work_struct *work) { int rc; int xid; @@ -2880,20 +2880,14 @@ cifs_get_tcon(struct cifs_ses *ses, stru tcon->max_cached_dirs = ctx->max_cached_dirs; tcon->nodelete = ctx->nodelete; tcon->local_lease = ctx->local_lease; - INIT_LIST_HEAD(&tcon->pending_opens); tcon->status = TID_GOOD; - INIT_DELAYED_WORK(&tcon->query_interfaces, - smb2_query_server_interfaces); if (ses->server->dialect >= SMB30_PROT_ID && (ses->server->capabilities & SMB2_GLOBAL_CAP_MULTI_CHANNEL)) { /* schedule query interfaces poll */ queue_delayed_work(cifsiod_wq, &tcon->query_interfaces, (SMB_INTERFACE_POLL_INTERVAL * HZ)); } -#ifdef CONFIG_CIFS_DFS_UPCALL - INIT_DELAYED_WORK(&tcon->dfs_cache_work, dfs_cache_refresh); -#endif spin_lock(&cifs_tcp_ses_lock); list_add(&tcon->tcon_list, &ses->tcon_list); spin_unlock(&cifs_tcp_ses_lock); --- a/fs/smb/client/misc.c +++ b/fs/smb/client/misc.c @@ -151,6 +151,12 @@ tcon_info_alloc(bool dir_leases_enabled, #ifdef CONFIG_CIFS_DFS_UPCALL INIT_LIST_HEAD(&ret_buf->dfs_ses_list); #endif + INIT_LIST_HEAD(&ret_buf->pending_opens); + INIT_DELAYED_WORK(&ret_buf->query_interfaces, + smb2_query_server_interfaces); +#ifdef CONFIG_CIFS_DFS_UPCALL + INIT_DELAYED_WORK(&ret_buf->dfs_cache_work, dfs_cache_refresh); +#endif return ret_buf; }