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 X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 48AB3C43381 for ; Tue, 12 Mar 2019 21:01:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 11326214AE for ; Tue, 12 Mar 2019 21:01:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1552424466; bh=SCe+EdX89qVSic7fVl6nO8iYn/eE9I+/j0RGph2FHok=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=wiJvmr4+9JL654yf5OgHvwY3Y8ghARGz9q93Z7HnMK9R2h3v5rR34KBYeqiYOBnyU R3FRJR2ViDj55QgElfvM0QXD8nkM5tCV1k7S7CeizV4lRS2WahVLUgubIXSQoENrOj 0Tv68jeNni/IBG72VD+6DR/vdoZWkKTKp2w25jYU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726411AbfCLVBF (ORCPT ); Tue, 12 Mar 2019 17:01:05 -0400 Received: from mail.kernel.org ([198.145.29.99]:59704 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726141AbfCLVBF (ORCPT ); Tue, 12 Mar 2019 17:01:05 -0400 Received: from localhost (unknown [104.133.8.98]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9DDE22173C; Tue, 12 Mar 2019 21:01:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1552424464; bh=SCe+EdX89qVSic7fVl6nO8iYn/eE9I+/j0RGph2FHok=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=tn22wWpzGhNha3RDEfneoNLGSQf12x3vidnjBXcSDfH8vvbmIpHKtLsYM7pU2wSrN jF3TuDqGiL4DIl6/KrfGkW/Mw20pm6kVTwDCRgIbPp6NSMu4gh7cEw2Zth40CD3y1D vogQTMIBA7DIPI25oVf3ZwoctJsEtdIGt4hDpyGw= Date: Tue, 12 Mar 2019 14:01:04 -0700 From: Greg KH To: Zubin Mithra Cc: stable@vger.kernel.org, groeck@chromium.org, chamaken@gmail.com, pablo@netfilter.org, kadlec@blackhole.kfki.hu, fw@strlen.de, davem@davemloft.net Subject: Re: eb075954e9fd ("netfilter: nfnetlink_log: just returns error for unknown command") Message-ID: <20190312210104.GB9552@kroah.com> References: <20190312202838.GA107600@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190312202838.GA107600@google.com> User-Agent: Mutt/1.11.3 (2019-02-01) Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Tue, Mar 12, 2019 at 01:28:40PM -0700, Zubin Mithra wrote: > Hello, > > Syzkaller has triggered a GPF when fuzzing a 4.4 kernel with the following stacktrace. > Call Trace: > [] lock_acquire+0x155/0x450 kernel/locking/lockdep.c:3592 > [] __raw_spin_lock_bh include/linux/spinlock_api_smp.h:137 [inline] > [] _raw_spin_lock_bh+0x3f/0x50 kernel/locking/spinlock.c:175 > [] spin_lock_bh include/linux/spinlock.h:307 [inline] > [] nfulnl_set_mode net/netfilter/nfnetlink_log.c:250 [inline] > [] nfulnl_recv_config+0x612/0x1440 net/netfilter/nfnetlink_log.c:909 > [] nfnetlink_rcv_msg+0xa59/0xbc0 net/netfilter/nfnetlink.c:215 > [] netlink_rcv_skb+0x149/0x380 net/netlink/af_netlink.c:2349 > [] nfnetlink_rcv+0x2ac/0x1190 net/netfilter/nfnetlink.c:479 > [] netlink_unicast_kernel net/netlink/af_netlink.c:1267 [inline] > [] netlink_unicast+0x51e/0x760 net/netlink/af_netlink.c:1293 > [] netlink_sendmsg+0x8c5/0xc20 net/netlink/af_netlink.c:1847 > [] sock_sendmsg_nosec net/socket.c:625 [inline] > [] sock_sendmsg+0xcf/0x110 net/socket.c:635 > [] ___sys_sendmsg+0x733/0x840 net/socket.c:1962 > [] __sys_sendmsg+0xd0/0x180 net/socket.c:1996 > [] SYSC_sendmsg net/socket.c:2007 [inline] > [] SyS_sendmsg+0x32/0x50 net/socket.c:2003 > [] entry_SYSCALL_64_fastpath+0x18/0x94 > Code: c7 44 18 10 00 00 00 00 48 8d 65 d8 44 89 c0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 4c 89 f2 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 c6 36 00 00 49 81 3e 20 ea 88 83 41 ba 00 00 > RIP [] __lock_acquire+0x5bd/0x4eb0 kernel/locking/lockdep.c:3092 > > Could the following patch be applied to v4.4.y? This patch is present in v4.9.y. > * eb075954e9fd ("netfilter: nfnetlink_log: just returns error for unknown command") > > Tests run: > * Chrome OS tryjobs > * Syzkaller reproducer Now applied, thanks. greg k-h