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 6081237268A; Sat, 4 Jul 2026 02:05:44 +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=1783130745; cv=none; b=sEJu6/SCJG5o5wN28auRPPozAS1dIl2Wytdzo6hWnqQkpSmzMC2zszPWNLl/iJTjbU9FAGUPWAKBo+mnBQ749oD8Fb6aM1MTRwJkNTIMYiiuVVb9S2h1lGLW9AKK+JLPfm584BD/BQMvKGyX6Rrm3HjAeB3uUqAuLPTvGl1QUbE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783130745; c=relaxed/simple; bh=Gh7zPtnoU6n2C2fISk3f0t2N8UYzRiVrBf/AWbw9cFs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=YzAnJgCJjnnjlj0a6BNjDOxv1vHhWCkdjJHFh2XtyETLXW2X8g9FBhzZeP9eHg5oVxiccbaftorAl4wta3MgsTkPf+8v+KE59oUTgQdKlUXt2NbdWqQBbmRwhv+rnSSulFzmHnLirH+trBqQE1rchS83VjxSfPaPkdI8Dnn9ns0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=UniFhK3a; 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="UniFhK3a" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3FF9B1F000E9; Sat, 4 Jul 2026 02:05:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783130744; bh=FuKFRC2UMqfTB32HTYGSrvKzMcxyhi40to9kRReBfSw=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=UniFhK3azUSfHEIXglQprci6Ifz3s4z7OleDAidUoWHhd7c+FFUtkTWLgpsBEQ6g3 PHrQI7fu5j+4q41WsD9qizzjGSXLcqLQgqdSrUt4GNn29QvtB84CZ+Utx62OmYZY1w Tdj0r7TKnXZOBkkz6p4UZobeblF6/LUnXlZTPrE3xUmIs6Glqk3j0OhXRYmQ38cRL3 yeKOTcRq6cKLcTiTOcgIWyDIf4/kYKC6JBSkRz0bR3aO2p92Cd5S/eigerZ02chJVx o0ijzLYuAq4D+Ailg82Ln+lAwPiKYEF6czejUbI3I+mQBZAZ81YzAamLHQkAD9T6m2 8mTybduwHYb5A== From: Sasha Levin To: Chris Lu , Sean Wang Cc: Sasha Levin , Linux kernel regressions list , linux-mediatek , linux-kernel , linux-bluetooth , stable@vger.kernel.org, Thorsten Leemhuis Subject: Re: btmtk: regression in 6.6.142: NULL pointer dereference in btmtk_usb_hci_wmt_sync during resume from S4 Date: Fri, 3 Jul 2026 22:05:10 -0400 Message-ID: <2026070315-stable-reply-0016@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <7ea1c4a0-d38f-413b-993b-7846b2b7debd@leemhuis.info> References: <7ea1c4a0-d38f-413b-993b-7846b2b7debd@leemhuis.info> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Thu, Jul 03, 2026 at 08:34:04AM +0200, Thorsten Leemhuis wrote: > Hi Chris & Sean! I noticed a report about a regression with btmtk that > happens in 6.6.y series. This strictly speaking is the domain of the > stable team, but maybe you want to take a look nevertheless: > > https://bugzilla.kernel.org/show_bug.cgi?id=221696 Thanks for the report! I've queued the missing part of the upstream chain for 6.6.y: 5c5e8c52e3caf plus its follow-up fixes 67dba2c28fe0af ("Bluetooth: btmtk: Fix failed to send func ctrl for MediaTek devices."), 099799fa9b76c5 ("Bluetooth: btmtk: Fix wait_on_bit_timeout interruption during shutdown"), and f0c83a23fcbb42 ("Bluetooth: btmtk: Fix btmtk.c undefined reference build error"). -- Thanks, Sasha