last executing test programs:
283.585516ms ago: executing program 0:
ioctl(0xffffffffffffffff, 0x0, &(0x7f0000000000))
126.19407ms ago: executing program 2:
getsockopt(0xffffffffffffffff, 0x0, 0x0, &(0x7f0000000000), &(0x7f0000000000))
25.551076ms ago: executing program 1:
sendmsg(0xffffffffffffffff, &(0x7f0000000000), 0x0)
0s ago: executing program 0:
setsockopt(0xffffffffffffffff, 0x0, 0x0, &(0x7f0000000000), 0x0)
kernel console output (not intermixed with test programs):
Warning: Permanently added '10.128.1.193' (ED25519) to the list of known hosts.
2024/06/19 03:18:03 fuzzer started
2024/06/19 03:18:03 dialing manager at 10.128.0.163:30035
[ 59.414559][ T5088] cgroup: Unknown subsys name 'net'
[ 59.675702][ T5088] cgroup: Unknown subsys name 'rlimit'
[ 60.841860][ T5090] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
2024/06/19 03:18:09 starting 3 executor processes
[ 65.637896][ T2876]
[ 65.640491][ T2876] =============================
[ 65.645556][ T2876] WARNING: suspicious RCU usage
[ 65.650617][ T2876] 6.10.0-rc3-syzkaller-00710-g382d1741b5b2 #0 Not tainted
[ 65.658304][ T2876] -----------------------------
[ 65.663265][ T2876] net/netfilter/ipset/ip_set_core.c:1200 suspicious rcu_dereference_protected() usage!
[ 65.673158][ T2876]
[ 65.673158][ T2876] other info that might help us debug this:
[ 65.673158][ T2876]
[ 65.683672][ T2876]
[ 65.683672][ T2876] rcu_scheduler_active = 2, debug_locks = 1
[ 65.692165][ T2876] 3 locks held by kworker/u8:7/2876:
[ 65.697653][ T2876] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830
[ 65.709440][ T2876] #1: ffffc90009c9fd00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830
[ 65.720509][ T2876] #2: ffffffff8f5da0d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0
[ 65.730726][ T2876]
[ 65.730726][ T2876] stack backtrace:
2024/06/19 03:18:09 SYZFATAL: failed to recv *flatrpc.HostMessageRaw: EOF
[ 65.737459][ T2876] CPU: 0 PID: 2876 Comm: kworker/u8:7 Not tainted 6.10.0-rc3-syzkaller-00710-g382d1741b5b2 #0
[ 65.747983][ T2876] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[ 65.758070][ T2876] Workqueue: netns cleanup_net
[ 65.762883][ T2876] Call Trace:
[ 65.766185][ T2876]
[ 65.769132][ T2876] dump_stack_lvl+0x241/0x360
[ 65.773821][ T2876] ? __pfx_dump_stack_lvl+0x10/0x10
[ 65.779019][ T2876] ? __pfx__printk+0x10/0x10
[ 65.783613][ T2876] lockdep_rcu_suspicious+0x221/0x340
[ 65.789127][ T2876] _destroy_all_sets+0x232/0x5f0
[ 65.794075][ T2876] ip_set_net_exit+0x20/0x50
[ 65.798753][ T2876] cleanup_net+0x802/0xcc0
[ 65.803182][ T2876] ? __pfx_cleanup_net+0x10/0x10
[ 65.808142][ T2876] ? process_scheduled_works+0x945/0x1830
[ 65.814390][ T2876] process_scheduled_works+0xa2c/0x1830
[ 65.819988][ T2876] ? __pfx_process_scheduled_works+0x10/0x10
[ 65.826131][ T2876] ? assign_work+0x364/0x3d0
[ 65.830737][ T2876] worker_thread+0x86d/0xd70
[ 65.835342][ T2876] ? __kthread_parkme+0x169/0x1d0
[ 65.840367][ T2876] ? __pfx_worker_thread+0x10/0x10
[ 65.845562][ T2876] kthread+0x2f0/0x390
[ 65.849720][ T2876] ? __pfx_worker_thread+0x10/0x10
[ 65.854880][ T2876] ? __pfx_kthread+0x10/0x10
[ 65.859498][ T2876] ret_from_fork+0x4b/0x80
[ 65.863934][ T2876] ? __pfx_kthread+0x10/0x10
[ 65.868526][ T2876] ret_from_fork_asm+0x1a/0x30
[ 65.873392][ T2876]
[ 65.908099][ T2876]
[ 65.910478][ T2876] =============================
[ 65.915557][ T2876] WARNING: suspicious RCU usage
[ 65.920433][ T2876] 6.10.0-rc3-syzkaller-00710-g382d1741b5b2 #0 Not tainted
[ 65.927918][ T2876] -----------------------------
[ 65.933493][ T2876] net/netfilter/ipset/ip_set_core.c:1211 suspicious rcu_dereference_protected() usage!
[ 65.943483][ T2876]
[ 65.943483][ T2876] other info that might help us debug this:
[ 65.943483][ T2876]
[ 65.953791][ T2876]
[ 65.953791][ T2876] rcu_scheduler_active = 2, debug_locks = 1
[ 65.961998][ T2876] 3 locks held by kworker/u8:7/2876:
[ 65.967392][ T2876] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830
[ 65.978683][ T2876] #1: ffffc90009c9fd00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830
[ 65.989437][ T2876] #2: ffffffff8f5da0d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0
[ 65.999321][ T2876]
[ 65.999321][ T2876] stack backtrace:
[ 66.005292][ T2876] CPU: 1 PID: 2876 Comm: kworker/u8:7 Not tainted 6.10.0-rc3-syzkaller-00710-g382d1741b5b2 #0
[ 66.016244][ T2876] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[ 66.026499][ T2876] Workqueue: netns cleanup_net
[ 66.031285][ T2876] Call Trace:
[ 66.034577][ T2876]
[ 66.037587][ T2876] dump_stack_lvl+0x241/0x360
[ 66.042384][ T2876] ? __pfx_dump_stack_lvl+0x10/0x10
[ 66.047780][ T2876] ? __pfx__printk+0x10/0x10
[ 66.052396][ T2876] lockdep_rcu_suspicious+0x221/0x340
[ 66.057923][ T2876] _destroy_all_sets+0x53f/0x5f0
[ 66.062868][ T2876] ip_set_net_exit+0x20/0x50
[ 66.067538][ T2876] cleanup_net+0x802/0xcc0
[ 66.072071][ T2876] ? __pfx_cleanup_net+0x10/0x10
[ 66.077011][ T2876] ? process_scheduled_works+0x945/0x1830
[ 66.082720][ T2876] process_scheduled_works+0xa2c/0x1830
[ 66.088366][ T2876] ? __pfx_process_scheduled_works+0x10/0x10
[ 66.094344][ T2876] ? assign_work+0x364/0x3d0
[ 66.099017][ T2876] worker_thread+0x86d/0xd70
[ 66.103725][ T2876] ? __kthread_parkme+0x169/0x1d0
[