last executing test programs: 825.622133ms ago: executing program 1: socket$caif_stream(0x25, 0x1, 0x0) 791.393959ms ago: executing program 4: syz_init_net_socket$llc(0x1a, 0x1, 0x0) 768.16154ms ago: executing program 0: socket$nl_generic(0x10, 0x3, 0x10) 765.832945ms ago: executing program 1: gettid() 765.178349ms ago: executing program 3: socket$inet_mptcp(0x2, 0x1, 0x106) 751.107538ms ago: executing program 2: pipe(&(0x7f0000000000)) 750.57107ms ago: executing program 4: socket$inet6_icmp_raw(0xa, 0x3, 0x3a) 736.502928ms ago: executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 735.177161ms ago: executing program 1: socket$l2tp(0x2, 0x2, 0x73) 728.717319ms ago: executing program 3: sendfile(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0) 725.762897ms ago: executing program 2: socket$can_bcm(0x1d, 0x2, 0x2) 713.354813ms ago: executing program 4: socket$rds(0x15, 0x5, 0x0) 704.894896ms ago: executing program 3: socket$vsock_stream(0x28, 0x1, 0x0) 692.249434ms ago: executing program 0: socket$nl_route(0x10, 0x3, 0x0) 689.365305ms ago: executing program 4: syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) 687.922705ms ago: executing program 1: clock_gettime(0x0, &(0x7f0000000000)) 683.803342ms ago: executing program 2: openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ppp', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/ppp', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/ppp', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/ppp', 0x800, 0x0) 668.24479ms ago: executing program 2: socket$inet_icmp(0x2, 0x2, 0x1) 663.747146ms ago: executing program 3: syz_init_net_socket$ax25(0x3, 0x2, 0x0) 659.958911ms ago: executing program 1: socket$caif_seqpacket(0x25, 0x5, 0x0) 657.366271ms ago: executing program 0: pwritev(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0, 0x0) 652.105575ms ago: executing program 4: syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) 626.242267ms ago: executing program 0: socket$inet_tcp(0x2, 0x1, 0x0) 624.475031ms ago: executing program 2: getuid() 620.145901ms ago: executing program 4: socket$inet_dccp(0x2, 0x6, 0x0) 616.394845ms ago: executing program 1: socket$inet_udplite(0x2, 0x2, 0x88) 602.741645ms ago: executing program 3: socket$can_j1939(0x1d, 0x2, 0x7) 596.295523ms ago: executing program 2: socket$inet_udp(0x2, 0x2, 0x0) 595.873179ms ago: executing program 0: unshare(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 '10.128.1.225' (ED25519) to the list of known hosts. 2024/06/19 11:52:29 fuzzer started 2024/06/19 11:52:29 dialing manager at 10.128.0.169:30019 [ 53.290136][ T5095] cgroup: Unknown subsys name 'net' [ 53.577309][ T5095] cgroup: Unknown subsys name 'rlimit' 2024/06/19 11:52:31 starting 5 executor processes [ 54.701428][ T5094] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 55.478756][ T5183] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 56.109021][ T5272] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 56.826702][ T35] [ 56.829251][ T35] ============================= [ 56.834292][ T35] WARNING: suspicious RCU usage [ 56.839156][ T35] 6.10.0-rc3-syzkaller-00711-g9f1f70dd8500 #0 Not tainted [ 56.846428][ T35] ----------------------------- [ 56.851293][ T35] net/netfilter/ipset/ip_set_core.c:1200 suspicious rcu_dereference_protected() usage! [ 56.861175][ T35] [ 56.861175][ T35] other info that might help us debug this: [ 56.861175][ T35] [ 56.871515][ T35] [ 56.871515][ T35] rcu_scheduler_active = 2, debug_locks = 1 [ 56.879705][ T35] 3 locks held by kworker/u8:2/35: [ 56.884920][ T35] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 56.895985][ T35] #1: ffffc90000ab7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 56.906738][ T35] #2: ffffffff8f5da0d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 56.916293][ T35] [ 56.916293][ T35] stack backtrace: [ 56.922268][ T35] CPU: 0 PID: 35 Comm: kworker/u8:2 Not tainted 6.10.0-rc3-syzkaller-00711-g9f1f70dd8500 #0 [ 56.932874][ T35] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 56.942955][ T35] Workqueue: netns cleanup_net [ 56.947768][ T35] Call Trace: [ 56.951071][ T35] [ 56.954028][ T35] dump_stack_lvl+0x241/0x360 [ 56.958736][ T35] ? __pfx_dump_stack_lvl+0x10/0x10 [ 56.963966][ T35] ? __pfx__printk+0x10/0x10 [ 56.968598][ T35] lockdep_rcu_suspicious+0x221/0x340 2024/06/19 11:52:33 SYZFATAL: failed to recv *flatrpc.HostMessageRaw: EOF [ 56.974009][ T35] _destroy_all_sets+0x232/0x5f0 [ 56.978992][ T35] ip_set_net_exit+0x20/0x50 [ 56.983612][ T35] cleanup_net+0x802/0xcc0 [ 56.988059][ T35] ? __pfx_cleanup_net+0x10/0x10 [ 56.993034][ T35] ? process_scheduled_works+0x945/0x1830 [ 56.998780][ T35] process_scheduled_works+0xa2c/0x1830 [ 57.004387][ T35] ? __pfx_process_scheduled_works+0x10/0x10 [ 57.010407][ T35] ? assign_work+0x364/0x3d0 [ 57.015033][ T35] worker_thread+0x86d/0xd70 [ 57.019662][ T35] ? __kthread_parkme+0x169/0x1d0 [ 57.024716][ T35] ? __pfx_worker_thread+0x10/0x10 [ 57.029845][ T35] kthread+0x2f0/0x390 [ 57.033962][ T35] ? __pfx_worker_thread+0x10/0x10 [ 57.039102][ T35] ? __pfx_kthread+0x10/0x10 [ 57.043733][ T35] ret_from_fork+0x4b/0x80 [ 57.048262][ T35] ? __pfx_kthread+0x10/0x10 [ 57.052875][ T35] ret_from_fork_asm+0x1a/0x30 [ 57.057685][ T35] [ 57.098904][ T35] [ 57.101283][ T35] ============================= [ 57.106199][ T35] WARNING: suspicious RCU usage [ 57.111061][ T35] 6.10.0-rc3-syzkaller-00711-g9f1f70dd8500 #0 Not tainted [ 57.118263][ T35] ----------------------------- [ 57.123163][ T35] net/netfilter/ipset/ip_set_core.c:1211 suspicious rcu_dereference_protected() usage! [ 57.132843][ T35] [ 57.132843][ T35] other info that might help us debug this: [ 57.132843][ T35] [ 57.143135][ T35] [ 57.143135][ T35] rcu_scheduler_active = 2, debug_locks = 1 [ 57.151226][ T35] 3 locks held by kworker/u8:2/35: [ 57.156394][ T35] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 57.167385][ T35] #1: ffffc90000ab7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 57.178468][ T35] #2: ffffffff8f5da0d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 57.187975][ T35] [ 57.187975][ T35] stack backtrace: [ 57.193919][ T35] CPU: 1 PID: 35 Comm: kworker/u8:2 Not tainted 6.10.0-rc3-syzkaller-00711-g9f1f70dd8500 #0 [ 57.204000][ T35] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 57.214086][ T35] Workqueue: netns cleanup_net [ 57.218886][ T35] Call Trace: [ 57.222182][ T35] [ 57.225215][ T35] dump_stack_lvl+0x241/0x360 [ 57.229924][ T35] ? __pfx_dump_stack_lvl+0x10/0x10 [ 57.235417][ T35] ? __pfx__printk+0x10/0x10 [ 57.240050][ T35] lockdep_rcu_suspicious+0x221/0x340 [ 57.245459][ T35] _destroy_all_sets+0x53f/0x5f0 [ 57.250432][ T35] ip_set_net_exit+0x20/0x50 [ 57.255051][ T35] cleanup_net+0x802/0xcc0 [ 57.259494][ T35] ? __pfx_cleanup_net+0x10/0x10 [ 57.264542][ T35] ? process_scheduled_works+0x945/0x1830 [ 57.270289][ T35] process_scheduled_works+0xa2c/0x1830 [ 57.275979][ T35] ? __pfx_process_scheduled_works+0x10/0x10 [ 57.281997][ T35] ? assign_work+0x364/0x3d0 [ 57.286625][ T35] worker_thread+0x86d/0xd70 [ 57.291252][ T35] ? __kthread_parkme+0x169/0x1d0 [ 57.296303][ T35] ? __pfx_worker_thread+0x10/0x10 [ 57.301439][ T35] kthread+0x2f0/0x390 [ 57.305537][ T35] ? __pfx_worker_thread+0x10/0x10 [ 57.310759][ T35] ? __pfx_kthread+0x10/0x10 [ 57.315381][ T35] ret_from_fork+0x4b/0x80 [ 57.319827][ T35] ? __pfx_kthread+0x10/0x10 [ 57.324450][ T35] ret_from_fork_asm+0x1a/0x30 [ 57.329258][ T35]