From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793211684; b=MeJToL5liHIpKAfvF1UVdMSO+OkRQF7toTzuNghoXsW6aKRfC2SYQ6h6kkXJ3DBk+9Hw JDmqVUuvuTK9zpCkOR6vMd3/GjkvRpIlgi5LaNqjKizp7d/pAmq9wBpzDyIxKSg6SgJML orLBz0xZssLu63jj/a3r8LJDTnqGeSgACO4c84ikNFEDChPLOCEnBiqZtosn4eX+N9NEO EoEhkYlYjUnDpNCn4lQNZPZmfZ/3lLVZeB1Egn22OLQWrQFZl257YC5PwK329bgt5aben WH0BxjZwENiotcHFkd/sKIPJT738vvvMJK4DUmYLMSRabVH0WM3pf+FuAFHdtm4R0WA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793211684; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=Hg8IWNINBQWuPAD7V7GkiNsvntGWfZMGPCWzt4OovSY=; b=DimFZbVt63tImIN2QbJg8sABW8RZ4lPpRAuFGupL2Ti5vC2r/Iye9uILWtbWK4mSFsmH YdqzfL5s17ikWOxhD0cBoGI5y7XjibTYNZRi/HNcWLBHdLtS4WFKB7J5gQuEEc3///XbN Nnamxz4B+l7+IWYgyl64cbCesj2aqiGRyss+yyHiN8FFYh1qDXM7UCWFkjCFgpfUTPaue aKca9lsqVpABi04Wi6eTprM0FC3K284rY3T5AnpVZgXM19MfF95Jr53HHfex1NJfASG4X X0h1BDDuEkqITjPHNU0FU6YQV9+zX5T5k23Qvu9iJJtneHtzevdlNhra94k/aceB/1g== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=1uhIKNzo; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id ECEA3606A321; Wed, 28 Oct 2026 18:21:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=1uhIKNzo Received: by smtp.kernel.org (Postfix) with ESMTPSA id 102711F01828; Wed, 28 Oct 2026 18:21:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1793211683; bh=Hg8IWNINBQWuPAD7V7GkiNsvntGWfZMGPCWzt4OovSY=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=1uhIKNzopdVttLGLjT3wSnAlmGhBNgPvAU3yPw2FMfFoRgDDLD2uOY4WTH4wq4H4V 95acIV3KtcNtSlWfw8+l5HsskDmubA2U3CGJIi+QGzalCdveceNmh1R+Ij165KFqBE 3HFihYK8EsjXoy+iPgqZj9tRV2ncqDV/I0rPpgK4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dan Carpenter , Vicki Pfau , Benjamin Tissoires , Lee Jones , Sasha Levin Subject: [PATCH 5.15 418/571] HID: hid-steam: Fix cleanup in probe() Date: Wed, 28 Oct 2026 17:59:25 +0100 Message-ID: <20261028170017.930218218@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261028170008.009143722@linuxfoundation.org> References: <20261028170008.009143722@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: patches@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dan Carpenter [ Upstream commit a9f1da09c69f13ef471db8b22107a28042d230ca ] There are a number of issues in this code. First of all if steam_create_client_hid() fails then it leads to an error pointer dereference when we call hid_destroy_device(steam->client_hdev). Also there are a number of leaks. hid_hw_stop() is not called if hid_hw_open() fails for example. And it doesn't call steam_unregister() or hid_hw_close(). Fixes: 691ead124a0c ("HID: hid-steam: Clean up locking") Signed-off-by: Dan Carpenter Reviewed-by: Vicki Pfau Link: https://lore.kernel.org/r/1fd87904-dabf-4879-bb89-72d13ebfc91e@moroto.mountain Signed-off-by: Benjamin Tissoires [Lee: Move client_hdev creation after steam_register() and omit mode_switch and rumble_work cancellation as 691ead124a0c and e133dc99fc07 are not present] Signed-off-by: Lee Jones Signed-off-by: Sasha Levin --- drivers/hid/hid-steam.c | 43 ++++++++++++++++++++++------------------- 1 file changed, 23 insertions(+), 20 deletions(-) diff --git a/drivers/hid/hid-steam.c b/drivers/hid/hid-steam.c index fc616db4231bb..8832f7987006c 100644 --- a/drivers/hid/hid-steam.c +++ b/drivers/hid/hid-steam.c @@ -751,31 +751,20 @@ static int steam_probe(struct hid_device *hdev, INIT_WORK(&steam->work_connect, steam_work_connect_cb); INIT_LIST_HEAD(&steam->list); - steam->client_hdev = steam_create_client_hid(hdev); - if (IS_ERR(steam->client_hdev)) { - ret = PTR_ERR(steam->client_hdev); - goto client_hdev_fail; - } - steam->client_hdev->driver_data = steam; - /* * With the real steam controller interface, do not connect hidraw. * Instead, create the client_hid and connect that. */ ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_HIDRAW); if (ret) - goto hid_hw_start_fail; - - ret = hid_add_device(steam->client_hdev); - if (ret) - goto client_hdev_add_fail; + goto err_cancel_work; ret = hid_hw_open(hdev); if (ret) { hid_err(hdev, "%s:hid_hw_open\n", __func__); - goto hid_hw_open_fail; + goto err_hw_stop; } if (steam->quirks & STEAM_QUIRK_WIRELESS) { @@ -791,19 +780,33 @@ static int steam_probe(struct hid_device *hdev, hid_err(hdev, "%s:steam_register failed with error %d\n", __func__, ret); - goto input_register_fail; + goto err_hw_close; } } + steam->client_hdev = steam_create_client_hid(hdev); + if (IS_ERR(steam->client_hdev)) { + ret = PTR_ERR(steam->client_hdev); + goto err_stream_unregister; + } + steam->client_hdev->driver_data = steam; + + ret = hid_add_device(steam->client_hdev); + if (ret) + goto err_destroy; + return 0; -input_register_fail: -hid_hw_open_fail: -client_hdev_add_fail: - hid_hw_stop(hdev); -hid_hw_start_fail: +err_destroy: hid_destroy_device(steam->client_hdev); -client_hdev_fail: +err_stream_unregister: + if (steam->connected) + steam_unregister(steam); +err_hw_close: + hid_hw_close(hdev); +err_hw_stop: + hid_hw_stop(hdev); +err_cancel_work: cancel_work_sync(&steam->work_connect); steam_alloc_fail: hid_err(hdev, "%s: failed with error %d\n", -- 2.53.0