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 E39A654763; Tue, 9 Jun 2026 00:52:23 +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=1780966345; cv=none; b=Tbp6Cn1AdbXzM7JAM6BQ5Q60SOxIvlypQIL98qtlUdW9IHQkx5P0vfVgUx++KGIlR/vDKg8Q0juNlcz6y96qvsgbVr8iHd2w6q3PV6YXLEHGaz14SYIsLwhT+BsmMsI3JuWdeRl7iOD2y5QWAX2ECKuGZc+bY9IqK5NElkMUA2E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780966345; c=relaxed/simple; bh=z73HwLVnnq2+zeo30gLl5GrbC4oK1UqZKltRwRTcJPw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=anbwK0aDXctwv+EMjL6YqqvH1GcuwGP+Lyi440n8hjQqCXzdwJ7Dsk09yW9QX+OT9Ws1OB6j44i17tAu7r1XOByFfikEB8Yk3iXFs2znjOGMeuoo8asfnfIA/KujcNV43zIk9Q55Sbwx9BYxA4oN18ur3xOfVrTSBGOs3hg/k8Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=HASS1J5t; 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="HASS1J5t" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 57C8F1F00893; Tue, 9 Jun 2026 00:52:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1780966343; bh=z73HwLVnnq2+zeo30gLl5GrbC4oK1UqZKltRwRTcJPw=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=HASS1J5tHtPOjb9zAvimiAvI77xPsvMFoR3clutZ5xCCx+GKXd/gR9EsSOqemR3S4 DJtICHylvl61OlPN0d8Zd7TFXs8EJs+O2vlRqn6Jt5KN8aZw1PQdwqicttqQuXLBdY pfiqhAcEmQaU6xDHEVov0aS6xujmWyyjMoXMsKXxQLF5F2jFgtDJESgvHZDbI/gFR6 0CLbjjDrwS+pHBepG6ufMX602PQrBAPskhMWCVMtUcsn29glNsb5Ypg58qniSiI4Et zpRBhpG9tPzGL66zDfwLHRUGKzALCrp2zSNTBhiAmloK5mt0UEphEH3vqTFHWnPuAW 97ivpud/u2DTw== From: Sasha Levin To: gregkh@linuxfoundation.org, stable@vger.kernel.org, khtsai@google.com Cc: Sasha Levin , patches@lists.linux.dev, linux-kernel@vger.kernel.org, raubcameo@gmail.com, andrzej.p@samsung.com, balbi@ti.com, kyungmin.park@samsung.com, linux-usb@vger.kernel.org, Jianqiang kang Subject: Re: [PATCH 6.6.y] usb: gadget: f_ncm: Fix net_device lifecycle with device_move Date: Mon, 8 Jun 2026 20:51:59 -0400 Message-ID: <20260608-stable-reply-0013@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260608053636.2797024-1-jianqkang@sina.cn> References: <20260608053636.2797024-1-jianqkang@sina.cn> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit > [PATCH 6.6.y] usb: gadget: f_ncm: Fix net_device lifecycle with device_move I can't take this one (6.6 or 6.1) on its own. ec35c1969650 alone opens a userspace-reachable NULL deref in eth_get_drvinfo() that is later closed upstream by e002e92e88e1 ("usb: gadget: u_ether: Fix NULL pointer deref in eth_get_drvinfo"), so applying this commit by itself trades a UAF for a DoS. Please send a complete backport that also includes e002e92e88e124 (as the follow-up patch in the same series) for both 6.6.y and 6.1.y, and I'll queue them together. -- Thanks, Sasha