Messages in this thread | | | Date | Sun, 12 Apr 2020 10:32:01 +0200 | From | Florian Westphal <> | Subject | Re: WARNING: bad unlock balance in mptcp_listen |
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syzbot <syzbot+ffec3741d41140477097@syzkaller.appspotmail.com> wrote: > syzbot found the following crash on: > > HEAD commit: 5b8b9d0c Merge branch 'akpm' (patches from Andrew) > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=1712bdb3e00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=23c5a352e32a1944 > dashboard link: https://syzkaller.appspot.com/bug?extid=ffec3741d41140477097 > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > > Unfortunately, I don't have any reproducer for this crash yet. > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+ffec3741d41140477097@syzkaller.appspotmail.com > > ===================================== > WARNING: bad unlock balance detected! > 5.6.0-syzkaller #0 Not tainted > ------------------------------------- > syz-executor.0/25417 is trying to release lock (sk_lock-AF_INET6) at: > [<ffffffff87c65063>] mptcp_listen+0x1c3/0x2e0 net/mptcp/protocol.c:1783 > but there are no more locks to release!
#syz dup: WARNING: bad unlock balance in mptcp_poll
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