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 85538233703; Mon, 10 Mar 2025 17:39:03 +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=1741628343; cv=none; b=FwHyDD/dYGjsDJbPbaERaXubuMEFhZo/Y2TejDHM1Uj54gwwUDJniQ7Zsw8TXTWUwO60TSFd6ibQ1jqYDEfSvVAlHmKMHLO4jO6d2avmkmgBTqk4zwPg638BfJhPoe1D5bqtlNNJXFkKw0KRZnvw+th2E5vkEhlFuLYmi8oJslw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741628343; c=relaxed/simple; bh=KNcXu+frCBUPAqfB1ICtGSrV86sdT04MwxuVaT/cdNw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=E19ed+66ihPJqAi6gLsssyTZxi/d7pI/jUK9KglQ+7WbdOCy2+eAULRB7w+lrXlbSnzuUsQ0WEBWA96mHGy11q73PHGr9xAZbHePu+ZJN41Plzk0Kkzwc38zNiJjGm8HoVYrjYc08qaeV6GtmyhHsvTuAZjD/21eBNyO1tpQCXQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=xbZNsnoH; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="xbZNsnoH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0D5D0C4CEE5; Mon, 10 Mar 2025 17:39:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1741628343; bh=KNcXu+frCBUPAqfB1ICtGSrV86sdT04MwxuVaT/cdNw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=xbZNsnoH+Qxrslxy1gbT0lLeEHRjolzHtGMsVJigMhK9cN8tO4nO8bcODhoY1jCxc 4GEiv8vS9VPBsSNZngMqObBqwOkH0bGQEWRC3VfEQcJr3bRM2sc55SIFAgEvRyTa+z LpeDYFO1ugmf+5686P/uq6MPklhzN0ejk69wefng= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Haoxiang Li , Luiz Augusto von Dentz Subject: [PATCH 6.1 026/109] Bluetooth: Add check for mgmt_alloc_skb() in mgmt_remote_name() Date: Mon, 10 Mar 2025 18:06:10 +0100 Message-ID: <20250310170428.592682163@linuxfoundation.org> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250310170427.529761261@linuxfoundation.org> References: <20250310170427.529761261@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Haoxiang Li commit f2176a07e7b19f73e05c805cf3d130a2999154cb upstream. Add check for the return value of mgmt_alloc_skb() in mgmt_remote_name() to prevent null pointer dereference. Fixes: ba17bb62ce41 ("Bluetooth: Fix skb allocation in mgmt_remote_name() & mgmt_device_connected()") Cc: stable@vger.kernel.org Signed-off-by: Haoxiang Li Signed-off-by: Luiz Augusto von Dentz Signed-off-by: Greg Kroah-Hartman --- net/bluetooth/mgmt.c | 2 ++ 1 file changed, 2 insertions(+) --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -10514,6 +10514,8 @@ void mgmt_remote_name(struct hci_dev *hd skb = mgmt_alloc_skb(hdev, MGMT_EV_DEVICE_FOUND, sizeof(*ev) + (name ? eir_precalc_len(name_len) : 0)); + if (!skb) + return; ev = skb_put(skb, sizeof(*ev)); bacpy(&ev->addr.bdaddr, bdaddr);