Re: [syzbot] BUG: sleeping function called from invalid context in sk_psock_stop

[Daniel Borkmann <daniel@xxxxxxxxxxxxx>]

On 6/13/22 12:52 PM, wangyufen wrote:
> 在 2022/6/10 22:35, Daniel Borkmann 写道:
> > On 6/10/22 4:23 PM, syzbot wrote:
> > > Hello,
> > >
> > > syzbot found the following issue on:
> > >
> > > HEAD commit:    ff539ac73ea5 Add linux-next specific files for 20220609
> > > git tree:       linux-next
> > > console+strace: https://syzkaller.appspot.com/x/log.txt?x=176c121bf00000
> > > kernel config: https://syzkaller.appspot.com/x/.config?x=a5002042f00a8bce
> > > dashboard link: https://syzkaller.appspot.com/bug?extid=140186ceba0c496183bc
> > > 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=13083353f00000
> > > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=173e67f0080000
> > >
> > > The issue was bisected to:
> > >
> > > commit d8616ee2affcff37c5d315310da557a694a3303d
> > > Author: Wang Yufen <wangyufen@xxxxxxxxxx>
> > > Date:   Tue May 24 07:53:11 2022 +0000
> > >
> > >      bpf, sockmap: Fix sk->sk_forward_alloc warn_on in sk_stream_kill_queues
> >
> > Same ping to Wang: Please take a look, otherwise we might need to revert if it stays unfixed.
>
> Thanks for Hillf's fix : https://groups.google.com/g/syzkaller-bugs/c/zunoClAqFQo/m/6SP7LIQoCQAJ
>
> and sorry for the delay.

Please send this as a proper fix then, so it lands in patchwork and can be applied.

Thanks,
Daniel