last executing test programs:

431.296573ms ago: executing program 2:
ioctl(0xffffffffffffffff, 0x0, &(0x7f0000000000))

418.143705ms ago: executing program 0:
socket$inet_dccp(0x2, 0x6, 0x0)

408.259697ms ago: executing program 1:
connect(0xffffffffffffffff, &(0x7f0000000000), 0x0)

85.950087ms ago: executing program 0:
setsockopt(0xffffffffffffffff, 0x0, 0x0, &(0x7f0000000000), 0x0)

40.936464ms ago: executing program 2:
write(0xffffffffffffffff, &(0x7f0000000000), 0x0)

0s ago: executing program 1:
sendmsg(0xffffffffffffffff, &(0x7f0000000000), 0x0)

kernel console output (not intermixed with test programs):

Warning: Permanently added '10.128.1.190' (ED25519) to the list of known hosts.
2024/06/14 23:52:52 fuzzer started
2024/06/14 23:52:52 dialing manager at 10.128.0.163:30035
syzkaller login: [   57.903207][ T5087] cgroup: Unknown subsys name 'net'
[   58.216779][ T5087] cgroup: Unknown subsys name 'rlimit'
[   59.352964][ T5089] Adding 124996k swap on ./swap-file.  Priority:0 extents:1 across:124996k 
[   59.366522][ T5089] syz-executor (5089) used greatest stack depth: 19456 bytes left
2024/06/14 23:53:00 starting 3 executor processes
[   65.916156][ T2439] 
[   65.918696][ T2439] =============================
[   65.923704][ T2439] WARNING: suspicious RCU usage
[   65.928580][ T2439] 6.10.0-rc3-syzkaller-00665-g404dbd26322f #0 Not tainted
[   65.935837][ T2439] -----------------------------
[   65.940895][ T2439] net/netfilter/ipset/ip_set_core.c:1200 suspicious rcu_dereference_protected() usage!
[   65.950643][ T2439] 
[   65.950643][ T2439] other info that might help us debug this:
[   65.950643][ T2439] 
[   65.961186][ T2439] 
2024/06/14 23:53:00 SYZFATAL: failed to recv *flatrpc.HostMessageRaw: EOF
[   65.961186][ T2439] rcu_scheduler_