last executing test programs: 1.068542535s ago: executing program 1: recvmmsg(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0, 0x0) 1.046806699s ago: executing program 1: socket$l2tp6(0xa, 0x2, 0x73) 1.003603842s ago: executing program 1: pwritev(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0, 0x0) 977.155355ms ago: executing program 1: socket$hf(0x13, 0x2, 0x0) 975.049423ms ago: executing program 3: socket(0x1, 0x1, 0x0) 943.110011ms ago: executing program 0: syz_init_net_socket$nl_rdma(0x10, 0x3, 0x14) 924.121035ms ago: executing program 3: syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) 922.833308ms ago: executing program 4: socket$netlink(0x10, 0x3, 0x0) 910.6938ms ago: executing program 0: syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) 886.133197ms ago: executing program 2: socket$packet(0x11, 0x2, 0x300) 884.884567ms ago: executing program 3: socket$inet6_icmp(0xa, 0x2, 0x3a) 871.751072ms ago: executing program 4: socket$inet_udp(0x2, 0x2, 0x0) 863.318668ms ago: executing program 0: syz_init_net_socket$nfc_raw(0x27, 0x3, 0x0) 851.962246ms ago: executing program 3: pwrite64(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0) 848.060519ms ago: executing program 2: socket$tipc(0x1e, 0x2, 0x0) 839.946623ms ago: executing program 4: socket$can_raw(0x1d, 0x3, 0x1) 830.511076ms ago: executing program 0: syz_init_net_socket$ax25(0x3, 0x2, 0x0) 821.310823ms ago: executing program 2: vmsplice(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0) 809.172184ms ago: executing program 3: socket$nl_rdma(0x10, 0x3, 0x14) 807.28485ms ago: executing program 1: socket$phonet_pipe(0x23, 0x5, 0x2) 799.620337ms ago: executing program 4: clock_gettime(0x0, &(0x7f0000000000)) 796.210969ms ago: executing program 0: getuid() 785.128357ms ago: executing program 2: readv(0xffffffffffffffff, &(0x7f0000000000), 0x0) 776.41454ms ago: executing program 1: tee(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0) 773.73556ms ago: executing program 4: syz_init_net_socket$x25(0x9, 0x5, 0x0) 768.184458ms ago: executing program 0: socket$l2tp(0x2, 0x2, 0x73) 761.426529ms ago: executing program 2: socket$pptp(0x18, 0x1, 0x2) 753.183267ms ago: executing program 4: nanosleep(&(0x7f0000000000), 0x0) 173.493672ms 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) 0s ago: executing program 2: 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 '10.128.0.216' (ED25519) to the list of known hosts. 2024/06/14 10:51:56 fuzzer started 2024/06/14 10:51:56 dialing manager at 10.128.0.169:30017 [ 57.788399][ T5090] cgroup: Unknown subsys name 'net' [ 58.077341][ T5090] cgroup: Unknown subsys name 'rlimit' 2024/06/14 10:51:58 starting 5 executor processes [ 59.170342][ T5111] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 60.103471][ T5185] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 60.436116][ T5236] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 60.884475][ T5273] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 60.907188][ T5273] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 60.920647][ T5273] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 60.929244][ T5273] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 60.951189][ T5273] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 60.958584][ T5273] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 61.409195][ T1007] [ 61.412110][ T1007] ============================= [ 61.417070][ T1007] WARNING: suspicious RCU usage [ 61.422393][ T1007] 6.10.0-rc3-syzkaller-00102-g89aa3619d141 #0 Not tainted [ 61.429788][ T1007] ----------------------------- [ 61.434675][ T1007] net/netfilter/ipset/ip_set_core.c:1200 suspicious rcu_dereference_protected() usage! [ 61.444589][ T1007] [ 61.444589][ T1007] other info that might help us debug this: [ 61.444589][ T1007] [ 61.454967][ T1007] [ 61.454967][ T1007] rcu_scheduler_active = 2, debug_locks = 1 [ 61.463624][ T1007] 3 locks held by kworker/u8:5/1007: [ 61.468942][ T1007] #0: ffff888015ed5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 61.480307][ T1007] #1: ffffc900043d7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 61.491032][ T1007] #2: ffffffff8f5db250 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 61.500733][ T1007] [ 61.500733][ T1007] stack backtrace: 2024/06/14 10:52:00 SYZFATAL: failed to recv *flatrpc.HostMessageRaw: EOF [ 61.506838][ T1007] CPU: 1 PID: 1007 Comm: kworker/u8:5 Not tainted 6.10.0-rc3-syzkaller-00102-g89aa3619d141 #0 [ 61.517113][ T1007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 61.527548][ T1007] Workqueue: netns cleanup_net [ 61.532364][ T1007] Call Trace: [ 61.535747][ T1007] [ 61.538736][ T1007] dump_stack_lvl+0x241/0x360 [ 61.543445][ T1007] ? __pfx_dump_stack_lvl+0x10/0x10 [ 61.548668][ T1007] ? __pfx__printk+0x10/0x10 [ 61.553485][ T1007] lockdep_rcu_suspicious+0x221/0x340 [ 61.559242][ T1007] _destroy_all_sets+0x232/0x5f0 [ 61.564390][ T1007] ip_set_net_exit+0x20/0x50 [ 61.569011][ T1007] cleanup_net+0x802/0xcc0 [ 61.573489][ T1007] ? __pfx_cleanup_net+0x10/0x10 [ 61.578476][ T1007] ? process_scheduled_works+0x945/0x1830 [ 61.584234][ T1007] process_scheduled_works+0xa2c/0x1830 [ 61.589833][ T1007] ? __pfx_process_scheduled_works+0x10/0x10 [ 61.595943][ T1007] ? assign_work+0x364/0x3d0 [ 61.600581][ T1007] worker_thread+0x86d/0xd70 [ 61.605207][ T1007] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 61.611126][ T1007] ? __kthread_parkme+0x169/0x1d0 [ 61.616161][ T1007] ? __pfx_worker_thread+0x10/0x10 [ 61.621265][ T1007] kthread+0x2f0/0x390 [ 61.625339][ T1007] ? __pfx_worker_thread+0x10/0x10 [ 61.630617][ T1007] ? __pfx_kthread+0x10/0x10 [ 61.635200][ T1007] ret_from_fork+0x4b/0x80 [ 61.639626][ T1007] ? __pfx_kthread+0x10/0x10 [ 61.644210][ T1007] ret_from_fork_asm+0x1a/0x30 [ 61.648981][ T1007] [ 61.846701][ T1007] [ 61.849085][ T1007] ============================= [ 61.854266][ T1007] WARNING: suspicious RCU usage [ 61.859132][ T1007] 6.10.0-rc3-syzkaller-00102-g89aa3619d141 #0 Not tainted [ 61.866522][ T1007] ----------------------------- [ 61.871844][ T1007] net/netfilter/ipset/ip_set_core.c:1211 suspicious rcu_dereference_protected() usage! [ 61.881949][ T1007] [ 61.881949][ T1007] other info that might help us debug this: [ 61.881949][ T1007] [ 61.892475][ T1007] [ 61.892475][ T1007] rcu_