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Message-ID: <CANn89iK46vtck1m2TvpT+gfDkAi=txd-8VD5qdBhoZqiL2-XEw@mail.gmail.com>
Date:   Tue, 17 Jan 2023 12:04:10 +0100
From:   Eric Dumazet <edumazet@...gle.com>
To:     syzbot <syzbot+bbd35b345c7cab0d9a08@...kaller.appspotmail.com>
Cc:     cong.wang@...edance.com, davem@...emloft.net, gnault@...hat.com,
        jakub@...udflare.com, kuba@...nel.org,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        pabeni@...hat.com, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] possible deadlock in release_sock

On Tue, Jan 17, 2023 at 11:59 AM syzbot
<syzbot+bbd35b345c7cab0d9a08@...kaller.appspotmail.com> wrote:
>
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit:    87b93b678e95 octeontx2-pf: Avoid use of GFP_KERNEL in atom..
> git tree:       net
> console output: https://syzkaller.appspot.com/x/log.txt?x=1032dd91480000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=2b6ecad960fc703e
> dashboard link: https://syzkaller.appspot.com/bug?extid=bbd35b345c7cab0d9a08
> 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=1716b3a1480000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=14e57a91480000
>
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/191e8cc30fff/disk-87b93b67.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/d34dd6d2fffd/vmlinux-87b93b67.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/ad9344e76aaf/bzImage-87b93b67.xz
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+bbd35b345c7cab0d9a08@...kaller.appspotmail.com

Fix under review :
https://patchwork.kernel.org/project/netdevbpf/patch/20230117110131.1362738-1-edumazet@google.com/

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