last executing test programs:
889.536372ms ago: executing program 0:
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ppp', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/ppp', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/ppp', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/ppp', 0x800, 0x0)
880.392159ms ago: executing program 4:
socket$nl_audit(0x10, 0x3, 0x9)
870.541824ms ago: executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
851.933486ms ago: executing program 2:
syz_init_net_socket$rose(0xb, 0x5, 0x0)
845.499489ms ago: executing program 3:
socket$bt_cmtp(0x1f, 0x3, 0x5)
839.927981ms ago: executing program 0:
syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x0)
837.17036ms ago: executing program 4:
pwrite64(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0)
808.33299ms ago: executing program 0:
nanosleep(&(0x7f0000000000), 0x0)
805.7653ms ago: executing program 2:
preadv(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0, 0x0)
801.473026ms ago: executing program 3:
gettid()
800.482247ms ago: executing program 1:
epoll_pwait(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0, &(0x7f0000000000), 0x0)
793.224186ms ago: executing program 4:
socket$inet6(0xa, 0x1, 0x0)
779.596162ms ago: executing program 3:
socket$bt_rfcomm(0x1f, 0x1, 0x3)
776.162511ms ago: executing program 2:
socket$inet_tcp(0x2, 0x1, 0x0)
769.059597ms ago: executing program 0:
syz_init_net_socket$ax25(0x3, 0x2, 0x0)
761.319678ms ago: executing program 1:
socket$inet6_icmp(0xa, 0x2, 0x3a)
757.669854ms ago: executing program 4:
socket$phonet_pipe(0x23, 0x5, 0x2)
739.516067ms ago: executing program 3:
socket$nl_route(0x10, 0x3, 0x0)
738.742265ms ago: executing program 1:
vmsplice(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0)
733.513851ms ago: executing program 2:
socket$nl_xfrm(0x10, 0x3, 0x6)
727.871399ms ago: executing program 0:
socket$inet6_udplite(0xa, 0x2, 0x88)
715.298836ms ago: executing program 4:
syz_init_net_socket$x25(0x9, 0x5, 0x0)
709.783399ms ago: executing program 1:
syz_init_net_socket$netrom(0x6, 0x5, 0x0)
705.226034ms ago: executing program 3:
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1)
701.701678ms ago: executing program 2:
socket$pppoe(0x18, 0x1, 0x0)
688.363674ms ago: executing program 4:
socket$kcm(0x29, 0x2, 0x0)
674.68926ms ago: executing program 1:
epoll_wait(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0)
667.227836ms ago: executing program 2:
poll(&(0x7f0000000000), 0x0, 0x0)
640.752946ms ago: executing program 1:
socket$qrtr(0x2a, 0x2, 0x0)
0s ago: executing program 3:
mmap(&(0x7efffffff000/0x1000)=nil, 0x1000, 0x0, 0x32, 0xffffffffffffffff, 0x0)
mmap(&(0x7f0000000000/0x1000000)=nil, 0x1000000, 0x7, 0x32, 0xffffffffffffffff, 0x0)
mmap(&(0x7f0001000000/0x1000)=nil, 0x1000, 0x0, 0x32, 0xffffffffffffffff, 0x0)
kernel console output (not intermixed with test programs):
Warning: Permanently added '10.128.1.183' (ED25519) to the list of known hosts.
2024/06/17 12:35:58 fuzzer started
2024/06/17 12:35:58 dialing manager at 10.128.0.169:30019
[ 57.642166][ T5093] cgroup: Unknown subsys name 'net'
[ 57.865387][ T5093] cgroup: Unknown subsys name 'rlimit'
2024/06/17 12:36:00 starting 5 executor processes
[ 59.000944][ T5107] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 60.091944][ T5216] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list
[ 60.414105][ T5260] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list
[ 61.169925][ T2808]
[ 61.172424][ T2808] =============================
[ 61.177365][ T2808] WARNING: suspicious RCU usage
[ 61.182231][ T2808] 6.10.0-rc3-syzkaller-00696-g4314175af496 #0 Not tainted
[ 61.189404][ T2808] -----------------------------
[ 61.194288][ T2808] net/netfilter/ipset/ip_set_core.c:1200 suspicious rcu_dereference_protected() usage!
[ 61.204015][ T2808]
[ 61.204015][ T2808] other info that might help us debug this:
[ 61.204015][ T2808]
[ 61.214338][ T2808]
2024/06/17 12:36:02 SYZFATAL: failed to recv *flatrpc.HostMessageRaw: EOF
[ 61.214338][ T2808] rcu_scheduler_active = 2, debug_locks = 1
[ 61.222528][ T2808] 3 locks held by kworker/u8:8/2808:
[ 61.228147][ T2808] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830
[ 61.239206][ T2808] #1: ffffc90009ff7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830
[ 61.249882][ T2808] #2: ffffffff8f5db650 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0
[ 61.259481][ T2808]
[ 61.259481][ T2808] stack backtrace:
[ 61.265399][ T2808] CPU: 1 PID: 2808 Comm: kworker/u8:8 Not tainted 6.10.0-rc3-syzkaller-00696-g4314175af496 #0
[ 61.275748][ T2808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[ 61.285924][ T2808] Workqueue: netns cleanup_net
[ 61.290745][ T2808] Call Trace:
[ 61.294059][ T2808]
[ 61.297041][ T2808] dump_stack_lvl+0x241/0x360
[ 61.301750][ T2808] ? __pfx_dump_stack_lvl+0x10/0x10
[ 61.307116][ T2808] ? __pfx__printk+0x10/0x10
[ 61.311782][ T2808] lockdep_rcu_suspicious+0x221/0x340
[ 61.317216][ T2808] _destroy_all_sets+0x232/0x5f0
[ 61.322275][ T2808] ip_set_net_exit+0x20/0x50
[ 61.326888][ T2808] cleanup_net+0x802/0xcc0
[ 61.331342][ T2808] ? __pfx_cleanup_net+0x10/0x10
[ 61.336332][ T2808] ? process_scheduled_works+0x945/0x1830
[ 61.342256][ T2808] process_scheduled_works+0xa2c/0x1830
[ 61.347830][ T2808] ? __pfx_process_scheduled_works+0x10/0x10
[ 61.353834][ T2808] ? assign_work+0x364/0x3d0
[ 61.358418][ T2808] worker_thread+0x86d/0xd70
[ 61.363014][ T2808] ? __kthread_parkme+0x169/0x1d0
[ 61.368033][ T2808] ? __pfx_worker_thread+0x10/0x10
[ 61.373137][ T2808] kthread+0x2f0/0x390
[ 61.377196][ T2808] ? __pfx_worker_thread+0x10/0x10
[ 61.382296][ T2808] ? __pfx_kthread+0x10/0x10
[ 61.386878][ T2808] ret_from_fork+0x4b/0x80
[ 61.391285][ T2808] ? __pfx_kthread+0x10/0x10
[ 61.395867][ T2808] ret_from_fork_asm+0x1a/0x30
[ 61.400645][ T2808]
[ 61.421242][ T2808]
[ 61.423616][ T2808] =============================
[ 61.428575][ T2808] WARNING: suspicious RCU usage
[ 61.433438][ T2808] 6.10.0-rc3-syzkaller-00696-g4314175af496 #0 Not tainted
[ 61.440626][ T2808] -----------------------------
[ 61.445567][ T2808] net/netfilter/ipset/ip_set_core.c:1211 suspicious rcu_dereference_protected() usage!
[ 61.455348][ T2808]
[ 61.455348][ T2808] other info that might help us debug this:
[ 61.455348][ T2808]
[ 61.465685][ T2808]
[ 61.465685][ T2808] rcu_scheduler_active = 2, debug_locks = 1
[ 61.473822][ T2808] 3 locks held by kworker/u8:8/2808:
[ 61.479320][ T2808] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830
[ 61.490301][ T2808] #1: ffffc90009ff7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830
[ 61.500978][ T2808] #2: ffffffff8f5db650 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0
[ 61.510488][ T2808]
[ 61.510488][ T2808] stack backtrace:
[ 61.516556][ T2808] CPU: 1 PID: 2808 Comm: kworker/u8:8 Not tainted 6.10.0-rc3-syzkaller-00696-g4314175af496 #0
[ 61.526901][ T2808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
[ 61.537018][ T2808] Workqueue: netns cleanup_net
[ 61.541821][ T2808] Call Trace:
[ 61.545127][ T2808]
[ 61.548086][ T2808] dump_stack_lvl+0x241/0x360
[ 61.552795][ T2808] ? __pfx_dump_stack_lvl+0x10/0x10
[ 61.558022][ T2808] ? __pfx__printk+0x10/0x10
[ 61.562644][ T2808] lockdep_rcu_suspicious+0x221/0x340
[ 61.568063][ T2808] _destroy_all_sets+0x53f/0x5f0
[ 61.573040][ T2808] ip_set_net_exit+0x20/0x50
[ 61.577656][ T2808] cleanup_net+0x802/0xcc0
[ 61.582143][ T2808] ? __pfx_cleanup_net+0x10/0x10
[ 61.587120][ T2808] ? process_scheduled_works+0x945/0x1830
[ 61.592869][ T2808] process_scheduled_works+0xa2c/0x1830
[ 61.598471][ T2808] ? __pfx_process_scheduled_works+0x10/0x10
[ 61.604511][ T2808] ? assign_work+0x364/0x3d0
[ 61.609134][ T2808] worker_thread+0x86d/0xd70
[ 61.613770][ T2808] ? __kthread_parkme+0x169/0x1d0
[ 61.618830][ T2808] ? __pfx_worker_th