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=-0.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no 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 5FCA2C3A59D for ; Fri, 16 Aug 2019 18:38:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 368402086C for ; Fri, 16 Aug 2019 18:38:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727594AbfHPSiH (ORCPT ); Fri, 16 Aug 2019 14:38:07 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:39733 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727516AbfHPSiH (ORCPT ); Fri, 16 Aug 2019 14:38:07 -0400 Received: by mail-io1-f71.google.com with SMTP id g12so4137535iok.6 for ; Fri, 16 Aug 2019 11:38:06 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=e+PpDr2V5juOVFqyDrSXmdwTl7F7MomLEjKAO8N9nHE=; b=X2X8pgS5qUfWgSBYK8mFBiPJbJqi7DNlgb6IwfDr0nyprtOJO68AVmiCk584FdFZzX 1FikPeVwscqOUfgCHtub5dquvfuR6d50p1UF7o6vM7jtzMvpCEx2B+y/I4Bc1Fhtb62y lz5ia5yht95X+BDdcCfRXsaQwspgeYce6svf6j74NdNGIDQysiRxrrGgjCUqRZOxjgdI XL119gFpwbS2C0Tz7NbMYs80C0pawtkZz5LVx0Iw+nApbWGnQPF5GZL17BM4ECpBaTe5 arnlgBSTIlr7snK3719VIiTY4YOEqIpw7XADofC3dbPbsj/DueM2opHdAA2Wr3v4zKn2 3VzA== X-Gm-Message-State: APjAAAVsdqaVhcMBIE6hElcwl9hd5dfr61f5mzJPESHuNgKaGVjWzsO1 BZutyZTNj+HzE2CVz9a1IUBPa8eLtD3BTYf5Oud9UTFcCatL X-Google-Smtp-Source: APXvYqztCTnJ1XN8Ogox+HQMGaETd1ve60ILEmNYDv6FMhvpwpTgbF5o54dyXD4/u88ixVkGMSOa7OzqRlekj79K/l5EBrL9Obk7 MIME-Version: 1.0 X-Received: by 2002:a5e:8e08:: with SMTP id a8mr12191314ion.94.1565980685858; Fri, 16 Aug 2019 11:38:05 -0700 (PDT) Date: Fri, 16 Aug 2019 11:38:05 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000008182a50590404a02@google.com> Subject: kernel BUG at include/linux/skbuff.h:LINE! (2) From: syzbot To: davem@davemloft.net, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, syzkaller-bugs@googlegroups.com, vyasevich@gmail.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: 459c5fb4 Merge branch 'mscc-PTP-support' git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=13f2d33c600000 kernel config: https://syzkaller.appspot.com/x/.config?x=d4cf1ffb87d590d7 dashboard link: https://syzkaller.appspot.com/bug?extid=eb349eeee854e389c36d compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=111849e2600000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1442c25a600000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+eb349eeee854e389c36d@syzkaller.appspotmail.com ------------[ cut here ]------------ kernel BUG at include/linux/skbuff.h:2225! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 9030 Comm: syz-executor649 Not tainted 5.3.0-rc3+ #134 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__skb_pull include/linux/skbuff.h:2225 [inline] RIP: 0010:__skb_pull include/linux/skbuff.h:2222 [inline] RIP: 0010:skb_pull_inline include/linux/skbuff.h:2231 [inline] RIP: 0010:skb_pull+0xea/0x110 net/core/skbuff.c:1902 Code: 9d c8 00 00 00 49 89 dc 49 89 9d c8 00 00 00 e8 9c e5 dd fb 4c 89 e0 5b 41 5c 41 5d 41 5e 5d c3 45 31 e4 eb ea e8 86 e5 dd fb <0f> 0b e8 df 13 18 fc e9 44 ff ff ff e8 d5 13 18 fc eb 8a e8 ee 13 RSP: 0018:ffff88808ac96e10 EFLAGS: 00010293 RAX: ffff88809c546000 RBX: 0000000000000004 RCX: ffffffff8594a3a6 RDX: 0000000000000000 RSI: ffffffff8594a3fa RDI: 0000000000000004 RBP: ffff88808ac96e30 R08: ffff88809c546000 R09: fffffbfff14a8f4f R10: fffffbfff14a8f4e R11: ffffffff8a547a77 R12: 0000000095e28bcc R13: ffff88808ac97478 R14: 00000000ffff8880 R15: ffff88808ac97478 FS: 0000555556549880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000100 CR3: 0000000089c3c000 CR4: 00000000001406f0 Call Trace: sctp_inq_pop+0x2f1/0xd80 net/sctp/inqueue.c:202 sctp_endpoint_bh_rcv+0x184/0x8d0 net/sctp/endpointola.c:385 sctp_inq_push+0x1e4/0x280 net/sctp/inqueue.c:80 sctp_rcv+0x2807/0x3590 net/sctp/input.c:256 sctp6_rcv+0x17/0x30 net/sctp/ipv6.c:1049 ip6_protocol_deliver_rcu+0x2fe/0x1660 net/ipv6/ip6_input.c:397 ip6_input_finish+0x84/0x170 net/ipv6/ip6_input.c:438 NF_HOOK include/linux/netfilter.h:305 [inline] NF_HOOK include/linux/netfilter.h:299 [inline] ip6_input+0xe4/0x3f0 net/ipv6/ip6_input.c:447 dst_input include/net/dst.h:442 [inline] ip6_sublist_rcv_finish+0x98/0x1e0 net/ipv6/ip6_input.c:84 ip6_list_rcv_finish net/ipv6/ip6_input.c:118 [inline] ip6_sublist_rcv+0x80c/0xcf0 net/ipv6/ip6_input.c:282 ipv6_list_rcv+0x373/0x4b0 net/ipv6/ip6_input.c:316 __netif_receive_skb_list_ptype net/core/dev.c:5049 [inline] __netif_receive_skb_list_core+0x5fc/0x9d0 net/core/dev.c:5097 __netif_receive_skb_list net/core/dev.c:5149 [inline] netif_receive_skb_list_internal+0x7eb/0xe60 net/core/dev.c:5244 gro_normal_list.part.0+0x1e/0xb0 net/core/dev.c:5757 gro_normal_list net/core/dev.c:5755 [inline] gro_normal_one net/core/dev.c:5769 [inline] napi_frags_finish net/core/dev.c:5782 [inline] napi_gro_frags+0xa6a/0xea0 net/core/dev.c:5855 tun_get_user+0x2e98/0x3fa0 drivers/net/tun.c:1974 tun_chr_write_iter+0xbd/0x156 drivers/net/tun.c:2020 call_write_iter include/linux/fs.h:1870 [inline] do_iter_readv_writev+0x5f8/0x8f0 fs/read_write.c:693 do_iter_write fs/read_write.c:970 [inline] do_iter_write+0x184/0x610 fs/read_write.c:951 vfs_writev+0x1b3/0x2f0 fs/read_write.c:1015 do_writev+0x15b/0x330 fs/read_write.c:1058 __do_sys_writev fs/read_write.c:1131 [inline] __se_sys_writev fs/read_write.c:1128 [inline] __x64_sys_writev+0x75/0xb0 fs/read_write.c:1128 do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x441b10 Code: 05 48 3d 01 f0 ff ff 0f 83 5d 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 3d 01 95 29 00 00 75 14 b8 14 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 34 09 fc ff c3 48 83 ec 08 e8 ba 2b 00 00 RSP: 002b:00007ffe63706b88 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007ffe63706ba0 RCX: 0000000000441b10 RDX: 0000000000000001 RSI: 00007ffe63706bd0 RDI: 00000000000000f0 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000004 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000122cb R13: 0000000000402960 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace c37566c1c02066db ]--- RIP: 0010:__skb_pull include/linux/skbuff.h:2225 [inline] RIP: 0010:__skb_pull include/linux/skbuff.h:2222 [inline] RIP: 0010:skb_pull_inline include/linux/skbuff.h:2231 [inline] RIP: 0010:skb_pull+0xea/0x110 net/core/skbuff.c:1902 Code: 9d c8 00 00 00 49 89 dc 49 89 9d c8 00 00 00 e8 9c e5 dd fb 4c 89 e0 5b 41 5c 41 5d 41 5e 5d c3 45 31 e4 eb ea e8 86 e5 dd fb <0f> 0b e8 df 13 18 fc e9 44 ff ff ff e8 d5 13 18 fc eb 8a e8 ee 13 RSP: 0018:ffff88808ac96e10 EFLAGS: 00010293 RAX: ffff88809c546000 RBX: 0000000000000004 RCX: ffffffff8594a3a6 RDX: 0000000000000000 RSI: ffffffff8594a3fa RDI: 0000000000000004 RBP: ffff88808ac96e30 R08: ffff88809c546000 R09: fffffbfff14a8f4f R10: fffffbfff14a8f4e R11: ffffffff8a547a77 R12: 0000000095e28bcc R13: ffff88808ac97478 R14: 00000000ffff8880 R15: ffff88808ac97478 FS: 0000555556549880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000100 CR3: 0000000089c3c000 CR4: 00000000001406f0 --- This bug 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 bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches From mboxrd@z Thu Jan 1 00:00:00 1970 From: syzbot Date: Fri, 16 Aug 2019 18:38:05 +0000 Subject: kernel BUG at include/linux/skbuff.h:LINE! (2) Message-Id: <0000000000008182a50590404a02@google.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable To: davem@davemloft.net, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, syzkaller-bugs@googlegroups.com, vyasevich@gmail.com Hello, syzbot found the following crash on: HEAD commit: 459c5fb4 Merge branch 'mscc-PTP-support' git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=13f2d33c600000 kernel config: https://syzkaller.appspot.com/x/.config?x=D4cf1ffb87d590d7 dashboard link: https://syzkaller.appspot.com/bug?extid=EB349eeee854e389c36d compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=111849e2600000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1442c25a600000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+eb349eeee854e389c36d@syzkaller.appspotmail.com ------------[ cut here ]------------ kernel BUG at include/linux/skbuff.h:2225! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 9030 Comm: syz-executor649 Not tainted 5.3.0-rc3+ #134 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS =20 Google 01/01/2011 RIP: 0010:__skb_pull include/linux/skbuff.h:2225 [inline] RIP: 0010:__skb_pull include/linux/skbuff.h:2222 [inline] RIP: 0010:skb_pull_inline include/linux/skbuff.h:2231 [inline] RIP: 0010:skb_pull+0xea/0x110 net/core/skbuff.c:1902 Code: 9d c8 00 00 00 49 89 dc 49 89 9d c8 00 00 00 e8 9c e5 dd fb 4c 89 e0 = =20 5b 41 5c 41 5d 41 5e 5d c3 45 31 e4 eb ea e8 86 e5 dd fb <0f> 0b e8 df 13 = 18 fc e9 44 ff ff ff e8 d5 13 18 fc eb 8a e8 ee 13 RSP: 0018:ffff88808ac96e10 EFLAGS: 00010293 RAX: ffff88809c546000 RBX: 0000000000000004 RCX: ffffffff8594a3a6 RDX: 0000000000000000 RSI: ffffffff8594a3fa RDI: 0000000000000004 RBP: ffff88808ac96e30 R08: ffff88809c546000 R09: fffffbfff14a8f4f R10: fffffbfff14a8f4e R11: ffffffff8a547a77 R12: 0000000095e28bcc R13: ffff88808ac97478 R14: 00000000ffff8880 R15: ffff88808ac97478 FS: 0000555556549880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000100 CR3: 0000000089c3c000 CR4: 00000000001406f0 Call Trace: sctp_inq_pop+0x2f1/0xd80 net/sctp/inqueue.c:202 sctp_endpoint_bh_rcv+0x184/0x8d0 net/sctp/endpointola.c:385 sctp_inq_push+0x1e4/0x280 net/sctp/inqueue.c:80 sctp_rcv+0x2807/0x3590 net/sctp/input.c:256 sctp6_rcv+0x17/0x30 net/sctp/ipv6.c:1049 ip6_protocol_deliver_rcu+0x2fe/0x1660 net/ipv6/ip6_input.c:397 ip6_input_finish+0x84/0x170 net/ipv6/ip6_input.c:438 NF_HOOK include/linux/netfilter.h:305 [inline] NF_HOOK include/linux/netfilter.h:299 [inline] ip6_input+0xe4/0x3f0 net/ipv6/ip6_input.c:447 dst_input include/net/dst.h:442 [inline] ip6_sublist_rcv_finish+0x98/0x1e0 net/ipv6/ip6_input.c:84 ip6_list_rcv_finish net/ipv6/ip6_input.c:118 [inline] ip6_sublist_rcv+0x80c/0xcf0 net/ipv6/ip6_input.c:282 ipv6_list_rcv+0x373/0x4b0 net/ipv6/ip6_input.c:316 __netif_receive_skb_list_ptype net/core/dev.c:5049 [inline] __netif_receive_skb_list_core+0x5fc/0x9d0 net/core/dev.c:5097 __netif_receive_skb_list net/core/dev.c:5149 [inline] netif_receive_skb_list_internal+0x7eb/0xe60 net/core/dev.c:5244 gro_normal_list.part.0+0x1e/0xb0 net/core/dev.c:5757 gro_normal_list net/core/dev.c:5755 [inline] gro_normal_one net/core/dev.c:5769 [inline] napi_frags_finish net/core/dev.c:5782 [inline] napi_gro_frags+0xa6a/0xea0 net/core/dev.c:5855 tun_get_user+0x2e98/0x3fa0 drivers/net/tun.c:1974 tun_chr_write_iter+0xbd/0x156 drivers/net/tun.c:2020 call_write_iter include/linux/fs.h:1870 [inline] do_iter_readv_writev+0x5f8/0x8f0 fs/read_write.c:693 do_iter_write fs/read_write.c:970 [inline] do_iter_write+0x184/0x610 fs/read_write.c:951 vfs_writev+0x1b3/0x2f0 fs/read_write.c:1015 do_writev+0x15b/0x330 fs/read_write.c:1058 __do_sys_writev fs/read_write.c:1131 [inline] __se_sys_writev fs/read_write.c:1128 [inline] __x64_sys_writev+0x75/0xb0 fs/read_write.c:1128 do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x441b10 Code: 05 48 3d 01 f0 ff ff 0f 83 5d 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 = =20 00 66 90 83 3d 01 95 29 00 00 75 14 b8 14 00 00 00 0f 05 <48> 3d 01 f0 ff = ff 0f 83 34 09 fc ff c3 48 83 ec 08 e8 ba 2b 00 00 RSP: 002b:00007ffe63706b88 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007ffe63706ba0 RCX: 0000000000441b10 RDX: 0000000000000001 RSI: 00007ffe63706bd0 RDI: 00000000000000f0 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000004 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000122cb R13: 0000000000402960 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace c37566c1c02066db ]--- RIP: 0010:__skb_pull include/linux/skbuff.h:2225 [inline] RIP: 0010:__skb_pull include/linux/skbuff.h:2222 [inline] RIP: 0010:skb_pull_inline include/linux/skbuff.h:2231 [inline] RIP: 0010:skb_pull+0xea/0x110 net/core/skbuff.c:1902 Code: 9d c8 00 00 00 49 89 dc 49 89 9d c8 00 00 00 e8 9c e5 dd fb 4c 89 e0 = =20 5b 41 5c 41 5d 41 5e 5d c3 45 31 e4 eb ea e8 86 e5 dd fb <0f> 0b e8 df 13 = 18 fc e9 44 ff ff ff e8 d5 13 18 fc eb 8a e8 ee 13 RSP: 0018:ffff88808ac96e10 EFLAGS: 00010293 RAX: ffff88809c546000 RBX: 0000000000000004 RCX: ffffffff8594a3a6 RDX: 0000000000000000 RSI: ffffffff8594a3fa RDI: 0000000000000004 RBP: ffff88808ac96e30 R08: ffff88809c546000 R09: fffffbfff14a8f4f R10: fffffbfff14a8f4e R11: ffffffff8a547a77 R12: 0000000095e28bcc R13: ffff88808ac97478 R14: 00000000ffff8880 R15: ffff88808ac97478 FS: 0000555556549880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000100 CR3: 0000000089c3c000 CR4: 00000000001406f0 --- This bug 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 bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches