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=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 5972AC433FE for ; Mon, 6 Sep 2021 16:17:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3FD3B608FB for ; Mon, 6 Sep 2021 16:17:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243923AbhIFQSY (ORCPT ); Mon, 6 Sep 2021 12:18:24 -0400 Received: from smtp-out.kfki.hu ([148.6.0.48]:56461 "EHLO smtp-out.kfki.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234132AbhIFQSX (ORCPT ); Mon, 6 Sep 2021 12:18:23 -0400 Received: from localhost (localhost [127.0.0.1]) by smtp2.kfki.hu (Postfix) with ESMTP id 2A770CC00FC; Mon, 6 Sep 2021 18:17:12 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at smtp2.kfki.hu Received: from smtp2.kfki.hu ([127.0.0.1]) by localhost (smtp2.kfki.hu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP; Mon, 6 Sep 2021 18:17:09 +0200 (CEST) Received: from blackhole.kfki.hu (blackhole.szhk.kfki.hu [148.6.240.2]) by smtp2.kfki.hu (Postfix) with ESMTP id 98A0FCC00F8; Mon, 6 Sep 2021 18:17:08 +0200 (CEST) Received: by blackhole.kfki.hu (Postfix, from userid 1000) id 6E9AF340D60; Mon, 6 Sep 2021 18:17:08 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by blackhole.kfki.hu (Postfix) with ESMTP id 6A284340D5D; Mon, 6 Sep 2021 18:17:08 +0200 (CEST) Date: Mon, 6 Sep 2021 18:17:08 +0200 (CEST) From: Jozsef Kadlecsik To: syzbot cc: coreteam@netfilter.org, David Miller , Florian Westphal , kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, Pablo Neira Ayuso , syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] WARNING: kmalloc bug in hash_ip_create In-Reply-To: <000000000000ea2f2605cb1ff6f6@google.com> Message-ID: References: <000000000000ea2f2605cb1ff6f6@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Pablo, I'm going to send the patch which fixes the issue together with the other ones in the same bunch. Best regards, Jozsef On Fri, 3 Sep 2021, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: a9c9a6f741cd Merge tag 'scsi-misc' of git://git.kernel.org.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=13246f25300000 > kernel config: https://syzkaller.appspot.com/x/.config?x=7860a0536ececf0c > dashboard link: https://syzkaller.appspot.com/bug?extid=3493b1873fb3ea827986 > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11602f35300000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10e8fbf5300000 > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+3493b1873fb3ea827986@syzkaller.appspotmail.com > > ------------[ cut here ]------------ > WARNING: CPU: 1 PID: 8430 at mm/util.c:597 kvmalloc_node+0x111/0x120 mm/util.c:597 > Modules linked in: > CPU: 1 PID: 8430 Comm: syz-executor792 Not tainted 5.14.0-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > RIP: 0010:kvmalloc_node+0x111/0x120 mm/util.c:597 > Code: 01 00 00 00 4c 89 e7 e8 8d 12 0d 00 49 89 c5 e9 69 ff ff ff e8 f0 21 d1 ff 41 89 ed 41 81 cd 00 20 01 00 eb 95 e8 df 21 d1 ff <0f> 0b e9 4c ff ff ff 0f 1f 84 00 00 00 00 00 55 48 89 fd 53 e8 c6 > RSP: 0018:ffffc9000108f280 EFLAGS: 00010293 > RAX: 0000000000000000 RBX: ffffc9000108f3a0 RCX: 0000000000000000 > RDX: ffff88801bfd5580 RSI: ffffffff81a4f621 RDI: 0000000000000003 > RBP: 0000000000400dc0 R08: 000000007fffffff R09: 00000000ffffffff > R10: ffffffff81a4f5de R11: 000000000000001f R12: 0000000200000018 > R13: 0000000000000000 R14: 00000000ffffffff R15: ffff888028b41a00 > FS: 0000000002409300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 0000000020000006 CR3: 00000000127f1000 CR4: 0000000000350ee0 > Call Trace: > hash_ip_create+0x4bb/0x13d0 net/netfilter/ipset/ip_set_hash_gen.h:1524 > ip_set_create+0x782/0x15a0 net/netfilter/ipset/ip_set_core.c:1100 > nfnetlink_rcv_msg+0xbc9/0x13f0 net/netfilter/nfnetlink.c:296 > netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2504 > nfnetlink_rcv+0x1ac/0x420 net/netfilter/nfnetlink.c:654 > netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline] > netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1340 > netlink_sendmsg+0x86d/0xdb0 net/netlink/af_netlink.c:1929 > sock_sendmsg_nosec net/socket.c:704 [inline] > sock_sendmsg+0xcf/0x120 net/socket.c:724 > ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409 > ___sys_sendmsg+0xf3/0x170 net/socket.c:2463 > __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x44/0xae > RIP: 0033:0x43f029 > Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 > RSP: 002b:00007ffd662e8c48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e > RAX: ffffffffffffffda RBX: 0000000000400488 RCX: 000000000043f029 > RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003 > RBP: 0000000000403010 R08: 0000000000000005 R09: 0000000000400488 > R10: 0000000000000001 R11: 0000000000000246 R12: 00000000004030a0 > R13: 0000000000000000 R14: 00000000004ac018 R15: 0000000000400488 > > > --- > This report is generated by a bot. It may contain errors. > See https://goo.gl/tpsmEJ for more information about syzbot. > syzbot engineers can be reached at syzkaller@googlegroups.com. > > syzbot will keep track of this issue. See: > https://goo.gl/tpsmEJ#status for how to communicate with syzbot. > syzbot can test patches for this issue, for details see: > https://goo.gl/tpsmEJ#testing-patches > - E-mail : kadlec@blackhole.kfki.hu, kadlecsik.jozsef@wigner.hu PGP key : https://wigner.hu/~kadlec/pgp_public_key.txt Address : Wigner Research Centre for Physics H-1525 Budapest 114, POB. 49, Hungary