From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 557032BFC85 for ; Wed, 26 Aug 2026 14:54:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787756050; cv=none; b=gKZT3y7G/p+vmWxNvWFD7382EULq2eQVoD51+d4y30pCMDLzon1NpyPRcyV3zgATbVlIPCQbfNA9kcGVHfTSjYJ1m/8FD3evI4YJxXq5Aq2YoxbimLHBiZgbddxpoyT0clizmIe+1RRQzziVYTbWccsxaXJxx8J1KJhIshjS0xE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787756050; c=relaxed/simple; bh=RR3aY1d6vSHbXs0rTYmhVJiWGOYHjmjDZx73n7N5Weg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=gcwO0F0MJy0aLJPbqzoM/4hxAIGcIK1ZKecPwgVXKcGKlPmL4e0QpBRqmWqd4C9ZxRrc1KztXQtagGLO7J1VIEOgL4tAW4wwDhUiR1RAfA60RzMgOlCNUhP8Ln1eO6jbf9mDtVxT0E9YYntOgvvncJ2HccCcdtfgGlFoXB2aj0A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BKTPir3G; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="BKTPir3G" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5F8931F000E9; Wed, 26 Aug 2026 14:53:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787756039; bh=V067F3AZa9Zh8ILJJEyfkOQRjBSr7hmEL08kKx34gp0=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=BKTPir3GSJyOMTIpIC+c/LcVAGLiYSSFupXHNVB2eySpCXIb/gAG9MULHlVmE31ER CQQBNbp2rG3y1xnOTdfNWGJOwzTwOGaJW0V/P08FHApeLi4+g7NsMC/pmrsLNB2rEg TkBgEPsg/oY8o8VTDHPmdhP1foxez0FZedw4Uu5RMiEwc/NA84VGj4X621t8oVCaxi LILHWRFV6PWc+f4wGfMCIP+DT2SckBzJTf34/1rKvqOjmq31cZZNAeaaJUTn0bnika FJpuLM6OtOM7boV+BOzI343mIj01dkaLUDxJuS6p7AEi8xuFmdvuCIoQnlm2uAPWfq HvcKrb2F3cBrQ== From: Sasha Levin To: stable@vger.kernel.org Cc: Jiangshan Yi , Jiri Kosina , Sasha Levin Subject: [PATCH 6.6.y] HID: nintendo: stop device IO before hid_hw_stop on probe failure Date: Wed, 26 Aug 2026 10:53:57 -0400 Message-ID: <20260826145357.873394-1-sashal@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <2026082537-drown-acquaint-6edf@gregkh> References: <2026082537-drown-acquaint-6edf@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Jiangshan Yi [ Upstream commit 1f74d3bff6fe04a64e02ab3661d2e0d554565aa6 ] nintendo_hid_probe() calls hid_device_io_start() before joycon_init() and joycon_leds_create(). If either fails, the error path jumps to err_close which calls hid_hw_close()/hid_hw_stop() without first calling hid_device_io_stop(). hid_hw_stop() does not stop device IO, so hid_input_report() may still run and access driver data that is being torn down, resulting in a use-after-free. Add an err_io_stop label that calls hid_device_io_stop() before hid_hw_close(), and point the two post-io_start error paths at it. Fixes: 2af16c1f846b ("HID: nintendo: add nintendo switch controller driver") Cc: stable@vger.kernel.org Signed-off-by: Jiangshan Yi Signed-off-by: Jiri Kosina [ dropped the absent `err_ida:`/`ida_free()` context and retargeted all five `goto err_close` paths to the new `err_io_stop` label ] Signed-off-by: Sasha Levin --- drivers/hid/hid-nintendo.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/hid/hid-nintendo.c b/drivers/hid/hid-nintendo.c index 4850e915a57d4..66331f1a86b69 100644 --- a/drivers/hid/hid-nintendo.c +++ b/drivers/hid/hid-nintendo.c @@ -2345,34 +2345,34 @@ static int nintendo_hid_probe(struct hid_device *hdev, ret = joycon_init(hdev); if (ret) { hid_err(hdev, "Failed to initialize controller; ret=%d\n", ret); - goto err_close; + goto err_io_stop; } ret = joycon_read_info(ctlr); if (ret) { hid_err(hdev, "Failed to retrieve controller info; ret=%d\n", ret); - goto err_close; + goto err_io_stop; } /* Initialize the leds */ ret = joycon_leds_create(ctlr); if (ret) { hid_err(hdev, "Failed to create leds; ret=%d\n", ret); - goto err_close; + goto err_io_stop; } /* Initialize the battery power supply */ ret = joycon_power_supply_create(ctlr); if (ret) { hid_err(hdev, "Failed to create power_supply; ret=%d\n", ret); - goto err_close; + goto err_io_stop; } ret = joycon_input_create(ctlr); if (ret) { hid_err(hdev, "Failed to create input device; ret=%d\n", ret); - goto err_close; + goto err_io_stop; } ctlr->ctlr_state = JOYCON_CTLR_STATE_READ; @@ -2380,7 +2380,8 @@ static int nintendo_hid_probe(struct hid_device *hdev, hid_dbg(hdev, "probe - success\n"); return 0; -err_close: +err_io_stop: + hid_device_io_stop(hdev); hid_hw_close(hdev); err_stop: hid_hw_stop(hdev); -- 2.53.0