[syzbot] Monthly netfilter report (Jun 2025)

[syzbot]

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, 1 new issues were detected and 0 were fixed.
In total, 10 issues are still open and 185 have already been fixed.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 512     Yes   INFO: rcu detected stall in addrconf_rs_timer (6)
                  https://syzkaller.appspot.com/bug?extid=fecf8bd19c1f78edb255
<2> 173     Yes   INFO: rcu detected stall in gc_worker (3)
                  https://syzkaller.appspot.com/bug?extid=eec403943a2a2455adaa
<3> 93      Yes   INFO: rcu detected stall in NF_HOOK (2)
                  https://syzkaller.appspot.com/bug?extid=34c2df040c6cfa15fdfe
<4> 2       No    WARNING: refcount bug in nf_nat_masq_schedule
                  https://syzkaller.appspot.com/bug?extid=e178f373ec62758ea18b

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