From mboxrd@z Thu Jan 1 00:00:00 1970 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 3B5A2C77B6E for ; Thu, 13 Apr 2023 10:14:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229766AbjDMKOy (ORCPT ); Thu, 13 Apr 2023 06:14:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58896 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229746AbjDMKOa (ORCPT ); Thu, 13 Apr 2023 06:14:30 -0400 Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5A304AF for ; Thu, 13 Apr 2023 03:14:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1681380854; x=1712916854; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=8b8vJdLdaGarWMGYDCX+GLQKHw0iObWHbaN0F/onbHk=; b=L0AL/TDM01EphRIjV3xxDrDiHk3mCsQXvOCWlwkzBpHvTyj8teun05t/ yR9Ck6C2RkcVwxYe3Ubarjnv3NiiRFV0lX0y90Si0sxUshj/CasxXGddU ONR+hkbsbmOurY0QyuPnxZRh/BqzWGpkrnHWqOszqaDFOtUcGDw6kIj6m xJ6WmxIyERZWX2As/3r93JH5/62lRUnQFABhdftxXqdirD+kmX3fjaBZY 4vOksx56LGhezDUZbEtXzT/Sa4kG2SoO8pw6q8LJok4WXyYlsO0bXv1Oq PzisYHkWOAvtT54BD7v68HNunqRMb7cMRdGTH6l6tJGcCRp7aoEMwrqN2 A==; X-IronPort-AV: E=McAfee;i="6600,9927,10678"; a="345935993" X-IronPort-AV: E=Sophos;i="5.98,341,1673942400"; d="scan'208";a="345935993" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Apr 2023 03:14:14 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10678"; a="639607764" X-IronPort-AV: E=Sophos;i="5.98,341,1673942400"; d="scan'208";a="639607764" Received: from unknown (HELO intel-71.bj.intel.com) ([10.238.154.71]) by orsmga003.jf.intel.com with ESMTP; 13 Apr 2023 03:14:11 -0700 From: Zhu Yanjun To: zyjzyj2000@gmail.com, jgg@ziepe.ca, leon@kernel.org, linux-rdma@vger.kernel.org Cc: Zhu Yanjun , syzbot+cfcc1a3c85be15a40cba@syzkaller.appspotmail.com Subject: [PATCH rdma-next v4 1/1] RDMA/rxe: Fix the error "trying to register non-static key in rxe_cleanup_task" Date: Thu, 13 Apr 2023 18:11:15 +0800 Message-Id: <20230413101115.1366068-1-yanjun.zhu@intel.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: Zhu Yanjun In the function rxe_create_qp(), rxe_qp_from_init() is called to initialize qp, internally things like rxe_init_task are not setup until rxe_qp_init_req(). If an error occures before this point then the unwind will call rxe_cleanup() and eventually to rxe_qp_do_cleanup()/rxe_cleanup_task() which will oops when trying to access the uninitialized spinlock. If rxe_init_task is not executed, rxe_cleanup_task will not be called. Reported-by: syzbot+cfcc1a3c85be15a40cba@syzkaller.appspotmail.com Link: https://syzkaller.appspot.com/bug?id=fd85757b74b3eb59f904138486f755f71e090df8 Fixes: 8700e3e7c485 ("Soft RoCE driver") Fixes: 2d4b21e0a291 ("IB/rxe: Prevent from completer to operate on non valid QP") Signed-off-by: Zhu Yanjun --- V3 -> V4: Remove the wrong signature; V2 -> V3: Rebase to rdma-next; V1 -> V2: Remove memset functions; --- drivers/infiniband/sw/rxe/rxe_qp.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/sw/rxe/rxe_qp.c b/drivers/infiniband/sw/rxe/rxe_qp.c index 49891f8ed4e6..d5de5ba6940f 100644 --- a/drivers/infiniband/sw/rxe/rxe_qp.c +++ b/drivers/infiniband/sw/rxe/rxe_qp.c @@ -761,9 +761,14 @@ static void rxe_qp_do_cleanup(struct work_struct *work) del_timer_sync(&qp->rnr_nak_timer); } - rxe_cleanup_task(&qp->resp.task); - rxe_cleanup_task(&qp->req.task); - rxe_cleanup_task(&qp->comp.task); + if (qp->resp.task.func) + rxe_cleanup_task(&qp->resp.task); + + if (qp->req.task.func) + rxe_cleanup_task(&qp->req.task); + + if (qp->comp.task.func) + rxe_cleanup_task(&qp->comp.task); /* flush out any receive wr's or pending requests */ rxe_requester(qp); -- 2.27.0