From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============1692272319377658553==" MIME-Version: 1.0 From: syzbot To: mptcp at lists.01.org Subject: [MPTCP] WARNING in mptcp_reset_timer Date: Wed, 18 Nov 2020 02:59:17 -0800 Message-ID: <000000000000b7f48605b45f80c5@google.com> X-Status: X-Keywords: X-UID: 6771 --===============1692272319377658553== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Hello, syzbot found the following issue on: HEAD commit: 7c8ca812 Add linux-next specific files for 20201117 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=3D14ccfce2500000 kernel config: https://syzkaller.appspot.com/x/.config?x=3Dff4bc71371dc5b13 dashboard link: https://syzkaller.appspot.com/bug?extid=3D42aa53dafb66a07e5= a24 compiler: gcc (GCC) 10.1.0-syz 20200507 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=3D1342e36e500000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=3D17f29bba500000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+42aa53dafb66a07e5a24(a)syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8718 at net/mptcp/protocol.c:719 mptcp_reset_timer+0x1= 2a/0x160 net/mptcp/protocol.c:719 Modules linked in: CPU: 1 PID: 8718 Comm: kworker/1:3 Not tainted 5.10.0-rc4-next-20201117-syz= kaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Goo= gle 01/01/2011 Workqueue: events mptcp_worker RIP: 0010:mptcp_reset_timer+0x12a/0x160 net/mptcp/protocol.c:719 Code: e8 0b 87 43 fe e8 46 71 c5 f8 48 b8 00 00 00 00 00 fc ff df 48 c7 04 = 03 00 00 00 00 48 83 c4 40 5b 5d 41 5c c3 e8 26 71 c5 f8 <0f> 0b 41 bc 14 0= 0 00 00 eb 98 e8 c7 d3 07 f9 e9 30 ff ff ff 48 c7 RSP: 0018:ffffc90001adfa38 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 1ffff9200035bf47 RCX: ffffffff88ab2357 RDX: ffff88801ae14f80 RSI: ffffffff88ab23ba RDI: 0000000000000007 RBP: ffff888024200000 R08: 0000000000000000 R09: ffff88802420084f R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000281400 R14: ffff888024200000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f994238f010 CR3: 0000000028d92000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mptcp_push_pending+0x1351/0x17c0 net/mptcp/protocol.c:1266 mptcp_worker+0x385/0x1a10 net/mptcp/protocol.c:1877 process_one_work+0x933/0x15a0 kernel/workqueue.c:2272 worker_thread+0x64c/0x1120 kernel/workqueue.c:2418 kthread+0x3af/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 --- 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(a)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 --===============1692272319377658553==--