From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp153-141.sina.com.cn (smtp153-141.sina.com.cn [61.135.153.141]) (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 C1C173C4565 for ; Fri, 21 Aug 2026 04:56:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=61.135.153.141 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787288205; cv=none; b=uzKF+1xUocsBD0+KO7WZFqP4A8dlEg34A+g6G+CptoxlOptN8y1xHKd4o1kvpELYTD1KVLXWeNQrGqlxoKEfDEeuOkWsKuwhcc9lh66L5oq1FInnwqj4q5S2LLi2syOJS6KiS+0kszSJDpNJvGsR24SxKWF/nHuHQDj1l+x3GpA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787288205; c=relaxed/simple; bh=zV4q6nrcrshL7Q5AphjPvjEE4BpzTkuJeusZrJuLM50=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Q/Zvms7Teut1BanBGq100g9+2mtfrXb0GQ7dWsekL+Wnl6aOXkEB7cPhYsnPQK0bWQWe9zLIwgwOxNJCo6OqlQ6vsO1RL6fUQjsPlo/LHQTWYInI8mNOSj1PJSqv7aANTG01ae6a2ELoIMLwWCsntSm51AMokk2RKBeOjWONdGY= 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=a2hmmiYM; arc=none smtp.client-ip=61.135.153.141 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="a2hmmiYM" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sina.com; s=201208; t=1787288195; bh=OGYxlcrl7mxtFQVLOyKw8S1JwwE3Miki4wyk+32omG0=; h=From:Subject:Date:Message-ID; b=a2hmmiYMvPfPsX5UkUDmT6EpIHkIiaShVf1J/S574G/d39I7s6HI4AQfJUBU8KYAM udPBITmsEG12tSkTawzI+TyZmUdR3aLyWOyb9LfdrkdSat075kxIYG0+rITIxKlid0 DXGLtf0cRocd/XS/MwHr7owMFCdqCIFKwsTlQN2Y= 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 6A87DA5100004683; Fri, 21 Aug 2026 12:55:48 +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: 6864706816897 X-SMAIL-UIID: B019083025F145028EBF13461291962C-20260821-125548-1 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: Fri, 21 Aug 2026 12:55:36 +0800 Message-ID: <20260821045537.1349-1-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 @@ -417,6 +417,7 @@ static void free_async(struct async *as) { int i; + usb_kill_urb(as->urb); put_pid(as->pid); if (as->cred) put_cred(as->cred); --