[syzbot] Monthly netfilter report (Nov 2025)

Hello netfilter maintainers/developers,

This is a 31-day syzbot report for the netfilter subsystem.
All related reports/information can be found at:
https://syzkaller.appspot.com/upstream/s/netfilter

During the period, 2 new issues were detected and 0 were fixed.
In total, 11 issues are still open and 191 have already been fixed.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 4593    Yes   INFO: rcu detected stall in worker_thread (9)
                  https://syzkaller.appspot.com/bug?extid=225bfad78b079744fd5e
<2> 607     Yes   INFO: rcu detected stall in addrconf_rs_timer (6)
                  https://syzkaller.appspot.com/bug?extid=fecf8bd19c1f78edb255
<3> 250     Yes   INFO: rcu detected stall in gc_worker (3)
                  https://syzkaller.appspot.com/bug?extid=eec403943a2a2455adaa
<4> 115     Yes   INFO: rcu detected stall in NF_HOOK (2)
                  https://syzkaller.appspot.com/bug?extid=34c2df040c6cfa15fdfe
<5> 8       Yes   WARNING in __nf_unregister_net_hook (9)
                  https://syzkaller.appspot.com/bug?extid=78ac1e46d2966eb70fda

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This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
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