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 01EFB22DFAA; Mon, 10 Mar 2025 17:25:00 +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=1741627501; cv=none; b=XMv4Tv7oxGRv72vKrSJqXs2ZAYQIiTDJQ3ivrzJQ0xWwN893Yr8dXXzUR4NdjYNsbkVrf2fS/76XszNM5gkPMPf3sJrs0euTI7jakNVdZRTRQ8jpxJKEn1bOMNE8FbF0I3jahAG/VgX/B3zlt9Ikj2ctkqnpkZMP2te2OFLcjfE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741627501; c=relaxed/simple; bh=z2QoIpgQPAo9PLxaDh89D0IVovyqR2e0BVQdmtudKrQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MAV1zbi6dx/zduhq8u+it5EAQSogHpuzbASbdqRhkFbaqKEjkpFotvoCyOUEhcQpYRn2vqASNGY3iHmYlp4/Cb78VZfIpdFeolL0iLq/6IOw7x9okTUGjxJd0RfPU/eU5Zy9BTCAOSlTfV6a9sKHU0Wtneo3lBgErhKbU+06TFo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=f8/mtl5b; 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="f8/mtl5b" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7DC53C4CEE5; Mon, 10 Mar 2025 17:25:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1741627500; bh=z2QoIpgQPAo9PLxaDh89D0IVovyqR2e0BVQdmtudKrQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=f8/mtl5b8M3NSZUb+Ug1RJSFEKw0gEKyiAYlftmKKypkqwtLPSV8IZSo1U4s/v42W UzhG8rRAZMeLrlySE1PiMg8Ismx7Ww2TWy8CSEugek6Tdp65V2SpiN3epV+wpy9Oqn Wh+Qb6T6SN/voMyAB8NkXIKExISfla1ObPjpK0qY= 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 6.12 119/269] Bluetooth: Add check for mgmt_alloc_skb() in mgmt_remote_name() Date: Mon, 10 Mar 2025 18:04:32 +0100 Message-ID: <20250310170502.465307594@linuxfoundation.org> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250310170457.700086763@linuxfoundation.org> References: <20250310170457.700086763@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 6.12-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 @@ -10484,6 +10484,8 @@ 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);