[syzbot] Monthly netfilter report (Jul 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 1 were fixed.
In total, 12 issues are still open and 186 have already been fixed.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 540     Yes   INFO: rcu detected stall in addrconf_rs_timer (6)
                  https://syzkaller.appspot.com/bug?extid=fecf8bd19c1f78edb255
<2> 184     Yes   INFO: rcu detected stall in gc_worker (3)
                  https://syzkaller.appspot.com/bug?extid=eec403943a2a2455adaa
<3> 100     Yes   INFO: rcu detected stall in NF_HOOK (2)
                  https://syzkaller.appspot.com/bug?extid=34c2df040c6cfa15fdfe
<4> 11      Yes   KMSAN: uninit-value in ip6table_mangle_hook (3)
                  https://syzkaller.appspot.com/bug?extid=6023ea32e206eef7920a

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