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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F0A42CCA473 for ; Sat, 4 Jun 2022 01:02:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349874AbiFDBC0 (ORCPT ); Fri, 3 Jun 2022 21:02:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37486 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244714AbiFDBCY (ORCPT ); Fri, 3 Jun 2022 21:02:24 -0400 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C6491396B6 for ; Fri, 3 Jun 2022 18:02:22 -0700 (PDT) Received: by mail-il1-f197.google.com with SMTP id g11-20020a056e021e0b00b002d1b5e8389bso7348412ila.2 for ; Fri, 03 Jun 2022 18:02:22 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=a+3cX63j0HBxXf0a3L3zpLBULDl2FODnZzb1/pTxks0=; b=DWGAkZdWaz6Bik4lPQ693u5kcI2YliTpfNX8YatQ8EGKsul+1Z++CA4oZ5NXenYX+a Stv03qNeTRfdGp559aHh2gds7Ryue19x6t5GtzLl+dwP3gFGFDCNZoxCrl1m27m3YH30 +v0lT1fbFYHwBjzYVTm6x0AKI7TCkx2zus7sOhs/Q2+oI1Fv5Edk0nQJaFhhwEv7mzIT d65e21iUslMopC2TL38l9w0PmGrGkYlKHFXvncEKDSK9lqJa4ogU6BlpGbtlyk23ESyS 3CNMtDHQDZMdbD8NPw7YXz13bbvCH58JyMkxbDHoR55WAdWBgvCq5ZDUqQUb/l9dkp5P OsOg== X-Gm-Message-State: AOAM532hysCZjcWUGVglrF9yxfkSdqkGE4D72fdxx1A1245qMtTBzZzm iUm+MK0ho0144coeAPMNR+zyEr3XeSU/D+6mCJlmayJI5i1D X-Google-Smtp-Source: ABdhPJwiDZ5m2kBfl7tNv3jbfR1q82b6i15VD7p6BurmnmTaDg4W4iwGe9cNfOy66GUpVbRjXFu9HIC9+Sb688Us1P29KXFmBov9 MIME-Version: 1.0 X-Received: by 2002:a05:6e02:154a:b0:2d1:d151:3c26 with SMTP id j10-20020a056e02154a00b002d1d1513c26mr7030398ilu.24.1654304542187; Fri, 03 Jun 2022 18:02:22 -0700 (PDT) Date: Fri, 03 Jun 2022 18:02:22 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000009667e705e094ca3c@google.com> Subject: [syzbot] kernel BUG in __skb_gso_segment From: syzbot To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, linux-kernel@vger.kernel.org, liuhangbin@gmail.com, lixiaoyan@google.com, mst@redhat.com, netdev@vger.kernel.org, pabeni@redhat.com, steffen.klassert@secunet.com, syzkaller-bugs@googlegroups.com, willemb@google.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 2c5ca23f7414 Merge tag 'ovl-update-5.19' of git://git.kern.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=11330935f00000 kernel config: https://syzkaller.appspot.com/x/.config?x=9b19cdd2d45cc221 dashboard link: https://syzkaller.appspot.com/bug?extid=7160965e6a93d826048a compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1724add5f00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1324cbf9f00000 The issue was bisected to: commit dfed913e8b55a0c2c4906f1242fd38fd9a116e49 Author: Hangbin Liu Date: Mon Apr 25 01:45:02 2022 +0000 net/af_packet: add VLAN support for AF_PACKET SOCK_RAW GSO bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=169079bdf00000 final oops: https://syzkaller.appspot.com/x/report.txt?x=159079bdf00000 console output: https://syzkaller.appspot.com/x/log.txt?x=119079bdf00000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+7160965e6a93d826048a@syzkaller.appspotmail.com Fixes: dfed913e8b55 ("net/af_packet: add VLAN support for AF_PACKET SOCK_RAW GSO") ------------[ cut here ]------------ kernel BUG at include/linux/skbuff.h:2699! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 3601 Comm: syz-executor210 Not tainted 5.18.0-syzkaller-11338-g2c5ca23f7414 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__skb_pull include/linux/skbuff.h:2699 [inline] RIP: 0010:skb_mac_gso_segment+0x48f/0x530 net/core/gro.c:136 Code: 00 48 c7 c7 00 96 d4 8a c6 05 cb d3 45 06 01 e8 26 bb d0 01 e9 2f fd ff ff 49 c7 c4 ea ff ff ff e9 f1 fe ff ff e8 91 84 19 fa <0f> 0b 48 89 df e8 97 44 66 fa e9 7f fd ff ff e8 ad 44 66 fa e9 48 RSP: 0018:ffffc90002e2f4b8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000012 RCX: 0000000000000000 RDX: ffff88805bb58000 RSI: ffffffff8760ed0f RDI: 0000000000000004 RBP: 0000000000005dbc R08: 0000000000000004 R09: 0000000000000fe0 R10: 0000000000000fe4 R11: 0000000000000000 R12: 0000000000000fe0 R13: ffff88807194d780 R14: 1ffff920005c5e9b R15: 0000000000000012 FS: 000055555730f300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200015c0 CR3: 0000000071ff8000 CR4: 0000000000350ee0 Call Trace: __skb_gso_segment+0x327/0x6e0 net/core/dev.c:3411 skb_gso_segment include/linux/netdevice.h:4749 [inline] validate_xmit_skb+0x6bc/0xf10 net/core/dev.c:3669 validate_xmit_skb_list+0xbc/0x120 net/core/dev.c:3719 sch_direct_xmit+0x3d1/0xbe0 net/sched/sch_generic.c:327 __dev_xmit_skb net/core/dev.c:3815 [inline] __dev_queue_xmit+0x14a1/0x3a00 net/core/dev.c:4219 packet_snd net/packet/af_packet.c:3071 [inline] packet_sendmsg+0x21cb/0x5550 net/packet/af_packet.c:3102 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:734 ____sys_sendmsg+0x6eb/0x810 net/socket.c:2492 ___sys_sendmsg+0xf3/0x170 net/socket.c:2546 __sys_sendmsg net/socket.c:2575 [inline] __do_sys_sendmsg net/socket.c:2584 [inline] __se_sys_sendmsg net/socket.c:2582 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2582 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+0x46/0xb0 RIP: 0033:0x7f4b95da06c9 Code: 28 c3 e8 4a 15 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:00007ffd7defc4c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007ffd7defc4f0 RCX: 00007f4b95da06c9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003 RBP: 0000000000000003 R08: bb1414ac00000050 R09: bb1414ac00000050 R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd7defc4e0 R14: 00007ffd7defc4d8 R15: 00007ffd7defc4d4 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__skb_pull include/linux/skbuff.h:2699 [inline] RIP: 0010:skb_mac_gso_segment+0x48f/0x530 net/core/gro.c:136 Code: 00 48 c7 c7 00 96 d4 8a c6 05 cb d3 45 06 01 e8 26 bb d0 01 e9 2f fd ff ff 49 c7 c4 ea ff ff ff e9 f1 fe ff ff e8 91 84 19 fa <0f> 0b 48 89 df e8 97 44 66 fa e9 7f fd ff ff e8 ad 44 66 fa e9 48 RSP: 0018:ffffc90002e2f4b8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000012 RCX: 0000000000000000 RDX: ffff88805bb58000 RSI: ffffffff8760ed0f RDI: 0000000000000004 RBP: 0000000000005dbc R08: 0000000000000004 R09: 0000000000000fe0 R10: 0000000000000fe4 R11: 0000000000000000 R12: 0000000000000fe0 R13: ffff88807194d780 R14: 1ffff920005c5e9b R15: 0000000000000012 FS: 000055555730f300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200015c0 CR3: 0000000071ff8000 CR4: 0000000000350ee0 --- 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. For information about bisection process see: https://goo.gl/tpsmEJ#bisection syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches