From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from r3-25.sinamail.sina.com.cn (r3-25.sinamail.sina.com.cn [202.108.3.25]) (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 1614719F137 for ; Sat, 22 Aug 2026 00:30:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=202.108.3.25 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787358645; cv=none; b=ID+dCdnvmIk0ibm//ZjNeFipLLPSXJCCNHRfsgT0gJPlWJag3ev8FOLrU4eYeQdAM2bT0Z3d7gklEfGui0P+REBopPMI52Mz751azNOBqCpzMQnvA//n8PnVOqxB8v9U7BURriL3HHAQ5QuDuoS1xUNLcnnS4rCfKM3zk1VYIMQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787358645; c=relaxed/simple; bh=xnGplFohFa9sAudxEBdM1Qj+VpB/kAz6PU1Qt+XKCNo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=NuXdzIqFRAO4iWtydfNHC8JsUwVz2Hi2WAKj05ocrTokDykduS0iIMTJaesJ/v+SL5uH2D5mrevB3ZmStgIx8F2EbCP8r1iQQYra54SC60H3ffeiENYD2YIXlxrnvBurAGZ/MDCi8cjraPnO4XQN7r5fAHoIPrqXJYyXUc4AStY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sina.com; spf=pass smtp.mailfrom=sina.com; dkim=pass (1024-bit key) header.d=sina.com header.i=@sina.com header.b=R7cOwyxj; arc=none smtp.client-ip=202.108.3.25 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sina.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sina.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=sina.com header.i=@sina.com header.b="R7cOwyxj" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sina.com; s=201208; t=1787358641; bh=JjJUn4Cre8Oh2Pjy1mmgTTbfdSXgaGr/RpXiZIJJE7Y=; h=From:Subject:Date:Message-ID; b=R7cOwyxjGoAk+gAGnSsiPB9LT7qp9z78xJJTZE9KYK5KD9St9ko5rfk3VByL+lFnU HBdaO/JIaUuUJay9Df8D0xVKzoA58ijJIjlA2h0P/pnM88R2sdRvGiKDLZ7m64cDTR 7IKTF8zJXtxsuNegltPOMH4werUlPXYHWA+aL08Q= X-SMAIL-HELO: localhost.localdomain Received: from unknown (HELO localhost.localdomain)([221.216.154.155]) by sina.com (10.54.253.31) with ESMTP id 6A88EDA4000066CF; Sat, 22 Aug 2026 08:30:31 +0800 (CST) X-Sender: hdanton@sina.com X-Auth-ID: hdanton@sina.com Authentication-Results: sina.com; spf=none smtp.mailfrom=hdanton@sina.com; dkim=none header.i=none; dmarc=none action=none header.from=hdanton@sina.com X-SMAIL-MID: 7292336816668 X-SMAIL-UIID: 6699C5CC71774508B14F6A84386AEB87-20260822-083031-1 From: Hillf Danton To: syzbot Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] KASAN: slab-use-after-free Read in vhci_send_cmd_submit Date: Sat, 22 Aug 2026 08:30:16 +0800 Message-ID: <20260822003021.1378-1-hdanton@sina.com> In-Reply-To: <6a871611.4d75e56a.c9a88.0041.GAE@google.com> References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit > Date: Thu, 20 Aug 2026 07:58:25 -0700 [thread overview] > Hello, > > syzbot found the following issue on: > > HEAD commit: 3eb40771c00a Merge tag 'soc-fixes-7.2-3' of git://git.kern.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=16e07a79580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=1d67342c314f228d > dashboard link: https://syzkaller.appspot.com/bug?extid=ecbb1750082f7528b507 > compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12849949580000 #syz test --- x/drivers/usb/core/devio.c +++ y/drivers/usb/core/devio.c @@ -612,7 +612,7 @@ __acquires(ps->lock) urb = as->urb; usb_get_urb(urb); spin_unlock(&ps->lock); /* Allow completions */ - usb_unlink_urb(urb); + usb_kill_urb(urb); usb_put_urb(urb); spin_lock(&ps->lock); goto rescan; --