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 48ABE5D73B; Sun, 28 Jan 2024 16:13:23 +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=1706458404; cv=none; b=UviNv4+Fr2bc92t5NUy0w25jwDsh699+5c0WKpOH64Ybs9kdH1v1srxwQO66Ka6C1/hV5M2G0UTM5DIgOKvdDzZtOSpZBUYoK5+oFW7gsV7QW8jngb3eMul8Q+lo3frowPEv95y2TsFNer5dvfAYpJ/hbVUj06DCvkWX9/3OwDU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706458404; c=relaxed/simple; bh=gL25tZW+oDdybgmrusSLsw8xBCDBD0WxxVan4IYL3WE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=hmkkPTaIyqpEH7gBlEzJtnuztoBOiiUwg1NbiZO8cKXU+8TsxHpHq8wnHydOg82H3/eRmlAlcyEWl3rFlARW7fROBu1XYH17L7kbu00r5e8CUPtIaJElUkd+8Tc0FenwGXyAwk3ht96EQNZWkg5q0CzjuTm4af7bxEfez/qdZ0I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ChWI94tj; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ChWI94tj" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1E995C43399; Sun, 28 Jan 2024 16:13:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1706458403; bh=gL25tZW+oDdybgmrusSLsw8xBCDBD0WxxVan4IYL3WE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ChWI94tjJs2TiyL8p40I+FrdlY8uMMyWLjuEIiXnLQs8MhRgr3hwx/USGKxLxBhVe cZON0+9dCCmMntUOs9uAORgrpJyReeosiA2Cia6udbsCU9PO5o/h7n7MlMQ0DITbwM SEoDupEbb5t/mlwT920mtHLK0vkjSFawUdeZgJD26jyjydvLdmpZ+hhMz7UaJ5ma+f dHWi2rN/ZkBeZNoGrwQXFEVhRi4LVTtgP3zw/h3vHmJElIXlVsmkqc9fQoqXwqz1RI N9pRCr0b5vnKkjl/UvGZsyPd9yXMhuyVUWhnjIl3KlIAijcuYYEJhQv5kHexYXhCsV CidPjIy1+ilyg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Yaxiong Tian , Chanwoo Choi , Sasha Levin , myungjoo.ham@samsung.com Subject: [PATCH AUTOSEL 6.6 05/31] extcon: fix possible name leak in extcon_dev_register() Date: Sun, 28 Jan 2024 11:12:35 -0500 Message-ID: <20240128161315.201999-5-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240128161315.201999-1-sashal@kernel.org> References: <20240128161315.201999-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.6.14 Content-Transfer-Encoding: 8bit From: Yaxiong Tian [ Upstream commit e66523c72c9aae0ff0dae6859eb77b04de1e8e5f ] In the error path after calling dev_set_name(), the device name is leaked. To fix this, moving dev_set_name() after the error path and before device_register. Link: https://lore.kernel.org/lkml/TYZPR01MB4784ADCD3E951E0863F3DB72D5B8A@TYZPR01MB4784.apcprd01.prod.exchangelabs.com/ Signed-off-by: Yaxiong Tian Signed-off-by: Chanwoo Choi Signed-off-by: Sasha Levin --- drivers/extcon/extcon.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c index 6f7a60d2ed91..e7f55c021e56 100644 --- a/drivers/extcon/extcon.c +++ b/drivers/extcon/extcon.c @@ -1280,8 +1280,6 @@ int extcon_dev_register(struct extcon_dev *edev) edev->id = ret; - dev_set_name(&edev->dev, "extcon%d", edev->id); - ret = extcon_alloc_cables(edev); if (ret < 0) goto err_alloc_cables; @@ -1310,6 +1308,7 @@ int extcon_dev_register(struct extcon_dev *edev) RAW_INIT_NOTIFIER_HEAD(&edev->nh_all); dev_set_drvdata(&edev->dev, edev); + dev_set_name(&edev->dev, "extcon%d", edev->id); edev->state = 0; ret = device_register(&edev->dev); -- 2.43.0