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 B00782309B6; Mon, 10 Mar 2025 17:10:30 +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=1741626630; cv=none; b=i5H0OW2bYomFlTJFa+Y4hTOx65EB7jAFi7BHmZBBCjSUTwUKDQG4KU9vdp6/XWr/TEPu/+Fh8QfCvwNRImw4vjV0+U9/HDOASx92GE/IsuTwLH2mLtyhwY+WojxpwcMEw5ZtuustfMFoOekQf1bUDpgYxIVUYLA6fTVx8okL7jk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741626630; c=relaxed/simple; bh=weIp/do5TdKy7Tbd3Urtio7zdPqjfL5Gc6Iq3OLxmg8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=JQ/DFK/KEuJDksNhKjsgQXr4E2Kk8UyBppxgJ6fu63mY3OaEMUuykRqHV69SSzjHuf6MV86Md1d0v7Axy1jr2omy6Jkc8J2Y7gvLKohk57PYXmOIFuoWKUvrG1/kntGOlaHssrwLMo7lEAJEXsKFavCiK0sjI+xXtig+dk+o41Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=k7kciFzF; 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="k7kciFzF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 39D7AC4CEE5; Mon, 10 Mar 2025 17:10:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1741626630; bh=weIp/do5TdKy7Tbd3Urtio7zdPqjfL5Gc6Iq3OLxmg8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=k7kciFzFOsv9cUZW5RO9Z6qAiFria00jHzttsNlzEHxhZ9UnjPlbtF3Jpm3S91vFZ SV+w39J8nuLmvcklaSWl6+2nFBar2GtT5yGHIm+AA0mhyJ3EVRzRlt+YFvNyB5kmW9 HUq4P27cnMLMu8wfYZKbbrgzEmL/g59lVeR5h4v8= 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 6.13 058/207] Bluetooth: Add check for mgmt_alloc_skb() in mgmt_remote_name() Date: Mon, 10 Mar 2025 18:04:11 +0100 Message-ID: <20250310170450.079683803@linuxfoundation.org> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250310170447.729440535@linuxfoundation.org> References: <20250310170447.729440535@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 6.13-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 @@ -10544,6 +10544,8 @@ 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);