[syzbot] Monthly netfilter report (Nov 2026)

[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, 13 issues are still open and 200 have already been fixed.
There are also 3 low-priority issues.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 151     Yes   INFO: rcu detected stall in rescuer_thread (2)
                  https://syzkaller.appspot.com/bug?extid=d5f7a5097c24c7c2dbbb
<2> 7       Yes   INFO: task hung in nf_tables_valid_genid (3)
                  https://syzkaller.appspot.com/bug?extid=83439cb981624bd8d068
<3> 199     Yes   INFO: rcu detected stall in br_handle_frame (6)
                  https://syzkaller.appspot.com/bug?extid=f8850bc3986562f79619
<4> 132     Yes   INFO: task hung in nfnetlink_rcv_msg (5)
                  https://syzkaller.appspot.com/bug?extid=c4b20b80ee6a7a2f5012
<5> 98      No    WARNING in nf_conntrack_cleanup_net_list (2)
                  https://syzkaller.appspot.com/bug?extid=122256c3e2bf6ec9f928

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