last executing test programs:
499.438383ms ago: executing program 2:
read(0xffffffffffffffff, &(0x7f0000000000), 0x0)
440.116362ms ago: executing program 1:
ioctl(0xffffffffffffffff, 0x0, &(0x7f0000000000))
283.698806ms ago: executing program 0:
sendmsg(0xffffffffffffffff, &(0x7f0000000000), 0x0)
189.753091ms ago: executing program 2:
getsockopt(0xffffffffffffffff, 0x0, 0x0, &(0x7f0000000000), &(0x7f0000000000))
77.443898ms ago: executing program 1:
setsockopt(0xffffffffffffffff, 0x0, 0x0, &(0x7f0000000000), 0x0)
0s ago: executing program 0:
write(0xffffffffffffffff, &(0x7f0000000000), 0x0)
kernel console output (not intermixed with test programs):
Warning: Permanently added '10.128.1.139' (ED25519) to the list of known hosts.
2024/06/18 05:09:20 fuzzer started
2024/06/18 05:09:20 dialing manager at 10.128.0.163:30035
[ 57.527103][ T5091] cgroup: Unknown subsys name 'net'
[ 57.771771][ T5091] cgroup: Unknown subsys name 'rlimit'
[ 58.942324][ T5112] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
2024/06/18 05:09:26 starting 3 executor processes
[ 63.782662][ T11]
[ 63.785290][ T11] =============================
[ 63.790414][ T11] WARNING: suspicious RCU usage
[ 63.795283][ T11] 6.10.0-rc3-syzkaller-00700-gefb459303dd5 #0 Not tainted
[ 63.802875][ T11] -----------------------------
[ 63.808024][ T11] net/netfilter/ipset/ip_set_core.c:1200 suspicious rcu_dereference_protected() usage!
[ 63.817826][ T11]
[ 63.817826][ T11] other info that might help us debug this:
[ 63.817826][ T11]
[ 63.828352][ T11]
2024/06/18 05:09:27 SYZFATAL: failed to recv *flatrpc.HostMessageRaw: EOF
[ 63.828352][ T11] rcu_scheduler_active = 2, debug_locks = 1
[ 63.836499][ T11] 3 locks held by kworker/u8:0/11:
[ 63.841631][ T11] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830
[ 63.853032][ T11] #1: ffffc90000107d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830
[ 63.863693][ T11] #2: ffffffff8f5db650 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0
[ 63.873262][ T11]
[ 63.873262][ T11] stack backtrace:
[ 63.879240][ T11] CPU: 0 PID: 11 Comm: kworker/u8:0 Not tainted 6.10.0-rc3-syzkaller-00700-gefb459303dd5 #0
[ 63.889690][ T11] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[ 63.899827][ T11] Workqueue: netns cleanup_net
[ 63.904697][ T11] Call Trace:
[ 63.907965][ T11] <TASK>
[ 63.910981][ T11] dump_stack_lvl+0x241/0x360
[ 63.915666][ T11] ? __pfx_dump_stack_lvl+0x10/0x10
[ 63.920883][ T11] ? __pfx__printk+0x10/0x10
[ 63.925578][ T11] lockdep_rcu_suspicious+0x221/0x340
[ 63.930957][ T11] _destroy_all_sets+0x232/0x5f0
[ 63.935904][ T11] ip_set_net_exit+0x20/0x50
[ 63.940490][ T11] cleanup_net+0x802/0xcc0
[ 63.944925][ T11] ? __pfx_cleanup_net+0x10/0x10
[ 63.949874][ T11] ? process_scheduled_works+0x945/0x1830
[ 63.955602][ T11] process_scheduled_works+0xa2c/0x1830
[ 63.961177][ T11] ? __pfx_process_scheduled_works+0x10/0x10
[ 63.967167][ T11] ? assign_work+0x364/0x3d0
[ 63.971845][ T11] worker_thread+0x86d/0xd70
[ 63.976452][ T11] ? __kthread_parkme+0x169/0x1d0
[ 63.981565][ T11] ? __pfx_worker_thread+0x10/0x10
[ 63.986808][ T11] kthread+0x2f0/0x390
[ 63.990890][ T11] ? __pfx_worker_thread+0x10/0x10
[ 63.996007][ T11] ? __pfx_kthread+0x10/0x10
[ 64.000689][ T11] ret_from_fork+0x4b/0x80
[ 64.005451][ T11] ? __pfx_kthread+0x10/0x10
[ 64.010034][ T11] ret_from_fork_asm+0x1a/0x30
[ 64.014807][ T11] </TASK>
[ 64.019357][ T11]
[ 64.021719][ T11] =============================
[ 64.026644][ T11] WARNING: suspicious RCU usage
[ 64.031504][ T11] 6.10.0-rc3-syzkaller-00700-gefb459303dd5 #0 Not tainted
[ 64.038680][ T11] -----------------------------
[ 64.043540][ T11] net/netfilter/ipset/ip_set_core.c:1211 suspicious rcu_dereference_protected() usage!
[ 64.053365][ T11]
[ 64.053365][ T11] other info that might help us debug this:
[ 64.053365][ T11]
[ 64.063669][ T11]
[ 64.063669][ T11] rcu_scheduler_active = 2, debug_locks = 1
[ 64.071786][ T11] 3 locks held by kworker/u8:0/11:
[ 64.076964][ T11] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830
[ 64.087940][ T11] #1: ffffc90000107d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830
[ 64.098641][ T11] #2: ffffffff8f5db650 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0
[ 64.108329][ T11]
[ 64.108329][ T11] stack backtrace:
[ 64.114227][ T11] CPU: 0 PID: 11 Comm: kworker/u8:0 Not tainted 6.10.0-rc3-syzkaller-00700-gefb459303dd5 #0
[ 64.124317][ T11] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[