From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2C280C43602 for ; Sat, 4 Jul 2026 02:05:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=FuKFRC2UMqfTB32HTYGSrvKzMcxyhi40to9kRReBfSw=; b=ep5ZkDnBpXGXbJYTQJiZB+9BS+ c8+T/hOZihVBv04OGqmSCNy+o8vxuj6X3D9f7GwPERstZBBHspCGWxK5vdSvYNL84P/tUjDqHpIkQ eC1v/wjo6l7IdU/mpUsfH/Jr/ZnFaSlZT6XTdPs+zRDtftEOednTv2HNK9cgPslbN1ZyrTsv6h+Lb +sxICPXQlOwPk42hAyBNX11pi6CtF7S5zkGIP32L/sM/qkZj3e5GKNNTqcJYUm7iuH4ikZZuIeuLz g8TF1CYurLJY9WzWeMI4qXcbZjFnuFN220HGg/d94kNBf4kP83tlpCgiugDXSoETzTZ1bt3VqGWbH BOryAD0Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wfplK-000000085sb-3FbU; Sat, 04 Jul 2026 02:05:46 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wfplJ-000000085sV-2W7H for linux-mediatek@lists.infradead.org; Sat, 04 Jul 2026 02:05:45 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 92EF2600FF; Sat, 4 Jul 2026 02:05:44 +0000 (UTC) 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> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org 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