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 98ECA3A7833 for ; Fri, 7 Aug 2026 11:45:12 +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=1786103121; cv=none; b=sf6oWoAfTXiDMyEJ9RjQzsCUQZABByUXxTYSCVeMf40FZRLOSEo8SeCxyrm18M84nMOBAn4s9fOfCJfe843VqgRryi0jf8LmZc6WJARTux0wznTVy0pEhHVgVQq/uBS9XVJ33DozNRfzEagq+bjcERLo23CW+pB19pBFGapzEGM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786103121; c=relaxed/simple; bh=p0b2ojC8JMYK3bKJBbFmi4xpUQZGrgyJaUqjbAB/nug=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=RDfxm1i0a2swYWU/xDNug4Y07SwSsT4dgnYxiAEU8AXvyHOjcPjfNj53+GDR47AY+aEd59p9rEX12PLCsIU7pPX91XuWuD5gWyPXMhXZrZN8uOTw/QhjKkDxvQVCkaxImNA9HJfl6mwI91Q8dQfzjsZcgmXY7gkauu4abhFKXKM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TDKiYBK1; 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="TDKiYBK1" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BBF9A1F00A3A; Fri, 7 Aug 2026 11:45:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786103110; bh=vmUGIA4DEHP8ZLGSGSnG7A9+LsonHN9GcvRKE84gPj4=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=TDKiYBK1xXWS8QoeJPonrvjzeYhVz0kqQdxyHQCBYbly0Lq5kXV6laKvdmgId5Ymm Rk5NPBAXHvlpon4J2PT2sRb8vuUSQpTmaewdVswWxIO751wHaEMQtZCVPQNtUHaG2+ /W9EDRayFszSXbOwzGmCPyBTIYMfkcFw1dTyT40EnZqM/0tNB1HSSMQuV0cR8YEb87 gjU3MlFbr6VAa6xSZQTqsEiG1sjNvlmrXL22b0VBIw+v6FaR+A6YGTOnc0iqCwpvP5 pjA4aDE/7mJXSd/8QxAChsqH3c7NsV8RNUEOwrIvLt8XK7h7n7FABuIl1yCssaLWf+ z5NfdYQb1xWQg== From: Sasha Levin To: stable@vger.kernel.org Cc: Sasha Levin , kernel-team@android.com, Lee Jones , Greg Kroah-Hartman , Siwei Zhang , Luiz Augusto von Dentz , Marco Elver , Todd Kjos Subject: Re: [PATCH 6.1.y] Bluetooth: L2CAP: Fix UAF in channel timeout by holding conn ref Date: Fri, 7 Aug 2026 07:45:06 -0400 Message-ID: <20260806234001.stable-0002@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260806005214.179730-1-tkjos@google.com> References: <20260806005214.179730-1-tkjos@google.com> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Thu, Aug 06, 2026 at 12:52:14AM +0000, Todd Kjos wrote: > l2cap_chan_timeout() runs asynchronously and accesses chan->conn. If > the connection is torn down while the timer is running or pending, > chan->conn can be freed, leading to a use-after-free when the timer > worker attempts to lock conn->lock: Queued for 6.1, thanks :) -- Thanks, Sasha