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 D74803EBF23; Tue, 4 Aug 2026 14:39:41 +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=1785854382; cv=none; b=IafT73dfTL0k7PkN1CfoIdcWr/4SVxcA8+ZGUTyBJMIyUFa1t7+YsTV20SZ6E02/pGrSd3xquyytCNLJkGQgGnmHdTB7V8iHrRO58B5I4POiTwp0MMFydG9jlG17N4ydzIgArQIwXwDcCN4/COshrZznHLx5AkXCoMjAkbQww/Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785854382; c=relaxed/simple; bh=UD3L0Zyr70GITDouRwp5Jhhv1RHn3BcHDQWy9vn8wzQ=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=uKoG+d0NKtFb1SmpO8iyuWpLFnDDWrHzDs5lLXzNLt+72t5ulzBkcqh1bRw908zBCuQiXw8Io1jjSQOY1Ji0fTjFCXxSp8k4EVFi1Y9KHLGxyumJblynfCvWrySI2qwgh8+lpNEbCyrG1R11i6aYiZPzWw2BXNCWqlTQGqDfA68= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Bx7oZjmv; 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="Bx7oZjmv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6E72D1F000E9; Tue, 4 Aug 2026 14:39:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785854381; bh=A3hxWVeUb+bnzcI7yo9wY4MZl5uyc0k0gBivgzxxluI=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=Bx7oZjmvnpjKDbncoaL6SAwGamDL6J/Yr/YXz6oRA8EFY4RfVp+V7HkLawA1+IgGD 8jGAaX4bR6RjfbU7hqIGjtir9Amh1/PhgaRPmViWn2T6Uimn9AAgrm2EZr0JYK1tvo Tyb7QEYbIdKB3vsXmI48vDKyZqCx132wIOtVmIuZ/pLfHcpq07Er878b0qvD6Z2zcb nCP4zSAfwkWniC2JCDh2G/R6OOpRpgADrNZ34Ma3VwTlLjny1K3BOpUZx3XnR/Zp8a i06zyEkOowI646W7HLII1hEvabEFxf4lm2FHBNwS9zuUKdnaaCcdFPkc00C4bsqyoM Cxe5CrHuG4cSQ== Received: from johan by theta with local (Exim 4.99.5) (envelope-from ) id 1wrGIs-000000005X8-0aMc; Tue, 04 Aug 2026 16:39:38 +0200 Date: Tue, 4 Aug 2026 16:39:38 +0200 From: Johan Hovold To: Oliver Neukum Cc: syzbot , gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [usb?] possible deadlock in digi_set_modem_signals Message-ID: References: <6a6cd832.1aa927e4.17d4bf.0007.GAE@google.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Tue, Aug 04, 2026 at 03:41:59PM +0200, Oliver Neukum wrote: > > > On 31.07.26 19:15, syzbot wrote: > > If you want syzbot to run the reproducer, reply with: > > #syz test: git://repo/address.git 11028ab62899 > > From ce3cda5cc4df748600c37b6b5cf5964d21478e1c Mon Sep 17 00:00:00 2001 > From: Oliver Neukum > Date: Tue, 4 Aug 2026 11:38:30 +0200 > Subject: [PATCH 1/2] usb: serial: digi_accelport: annotate spinlocks > > The driver holds two spinlocks at the same time. > This is perfectly safe, but confuses the validator. > Tell it manually that we know what we are doing. I fixed this up a few days ago after I saw the report: https://lore.kernel.org/all/20260801125827.292983-1-johan@kernel.org/ I've merged that patch for 7.2 to avoid others spending time on it, but perhaps I should have replied to the report as well. Sorry about that. Johan