last executing test programs: 964.173725ms ago: executing program 2: socket$inet_smc(0x2b, 0x1, 0x0) 938.72425ms ago: executing program 3: socket$inet(0x2, 0x1, 0x0) 932.589131ms ago: executing program 4: socket$caif_stream(0x25, 0x1, 0x0) 917.046573ms ago: executing program 2: socket$inet6_udplite(0xa, 0x2, 0x88) 912.160671ms ago: executing program 1: socket$inet_mptcp(0x2, 0x1, 0x106) 879.830409ms ago: executing program 3: syz_init_net_socket$x25(0x9, 0x5, 0x0) 876.01275ms ago: executing program 4: getpid() 875.437099ms ago: executing program 1: pread64(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0) 856.260429ms ago: executing program 3: syz_init_net_socket$nfc_llcp(0x27, 0x1, 0x1) 853.931505ms ago: executing program 0: socket$qrtr(0x2a, 0x2, 0x0) 850.809814ms ago: executing program 1: syz_init_net_socket$netrom(0x6, 0x5, 0x0) 843.442808ms ago: executing program 4: pselect6(0x0, &(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000)) 842.284702ms ago: executing program 2: socket$pptp(0x18, 0x1, 0x2) 826.065801ms ago: executing program 3: socket$inet_udp(0x2, 0x2, 0x0) 820.304355ms ago: executing program 0: socket$inet6_icmp_raw(0xa, 0x3, 0x3a) 807.324172ms ago: executing program 4: socket$inet6(0xa, 0x1, 0x0) 805.162375ms ago: executing program 1: socket$bt_rfcomm(0x1f, 0x1, 0x3) 802.146417ms ago: executing program 2: select(0x0, &(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000)) 791.281809ms ago: executing program 0: vmsplice(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0) 781.864703ms ago: executing program 2: getgid() 781.171653ms ago: executing program 4: socket$inet6_icmp(0xa, 0x2, 0x3a) 773.728583ms ago: executing program 1: socket$phonet(0x23, 0x2, 0x1) 763.283707ms ago: executing program 0: syz_init_net_socket$rose(0xb, 0x5, 0x0) 754.719206ms ago: executing program 3: syz_init_net_socket$802154_raw(0x24, 0x3, 0x0) 751.706901ms ago: executing program 4: socket$packet(0x11, 0x2, 0x300) 739.260765ms ago: executing program 2: pwritev(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0, 0x0) 729.543734ms ago: executing program 0: syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x0) 727.57703ms ago: executing program 1: syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) 717.366082ms ago: executing program 3: syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1) 0s ago: executing program 0: 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 '10.128.0.15' (ED25519) to the list of known hosts. 2024/06/20 09:42:59 fuzzer started 2024/06/20 09:42:59 dialing manager at 10.128.0.169:30017 [ 64.525705][ T5089] cgroup: Unknown subsys name 'net' [ 64.837909][ T5089] cgroup: Unknown subsys name 'rlimit' [ 65.984902][ T5113] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k 2024/06/20 09:43:01 starting 5 executor processes [ 66.891768][ T5186] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 67.262143][ T5237] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 68.177017][ T2433] [ 68.179603][ T2433] ============================= [ 68.184548][ T2433] WARNING: suspicious RCU usage [ 68.189415][ T2433] 6.10.0-rc3-syzkaller-00156-g6cd4a78d962b #0 Not tainted [ 68.196765][ T2433] ----------------------------- [ 68.201697][ T2433] net/netfilter/ipset/ip_set_core.c:1200 suspicious rcu_dereference_protected() usage! [ 68.211691][ T2433] [ 68.211691][ T2433] other info that might help us debug this: [ 68.211691][ T2433] [ 68.222053][ T2433] 2024/06/20 09:43:03 SYZFATAL: failed to recv *flatrpc.HostMessageRaw: EOF [ 68.222053][ T2433] rcu_scheduler_active = 2, debug_locks = 1 [ 68.230465][ T2433] 3 locks held by kworker/u8:9/2433: [ 68.235903][ T2433] #0: ffff888015ed5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 68.247017][ T2433] #1: ffffc9000958fd00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 68.258073][ T2433] #2: ffffffff8f5d9c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 68.267852][ T2433] [ 68.267852][ T2433] stack backtrace: [ 68.274515][ T2433] CPU: 0 PID: 2433 Comm: kworker/u8:9 Not tainted 6.10.0-rc3-syzkaller-00156-g6cd4a78d962b #0 [ 68.284805][ T2433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 68.294886][ T2433] Workqueue: netns cleanup_net [ 68.299726][ T2433] Call Trace: [ 68.303033][ T2433] [ 68.306074][ T2433] dump_stack_lvl+0x241/0x360 [ 68.310888][ T2433] ? __pfx_dump_stack_lvl+0x10/0x10 [ 68.316121][ T2433] ? __pfx__printk+0x10/0x10 [ 68.320748][ T2433] lockdep_rcu_suspicious+0x221/0x340 [ 68.326242][ T2433] _destroy_all_sets+0x232/0x5f0 [ 68.331257][ T2433] ip_set_net_exit+0x20/0x50 [ 68.335873][ T2433] cleanup_net+0x802/0xcc0 [ 68.340333][ T2433] ? __pfx_cleanup_net+0x10/0x10 [ 68.345321][ T2433] ? process_scheduled_works+0x945/0x1830 [ 68.351074][ T2433] process_scheduled_works+0xa2c/0x1830 [ 68.356766][ T2433] ? __pfx_process_scheduled_works+0x10/0x10 [ 68.362886][ T2433] ? assign_work+0x364/0x3d0 [ 68.367523][ T2433] worker_thread+0x86d/0xd70 [ 68.372163][ T2433] ? __kthread_parkme+0x169/0x1d0 [ 68.377225][ T2433] ? __pfx_worker_thread+0x10/0x10 [ 68.382380][ T2433] kthread+0x2f0/0x390 [ 68.386487][ T2433] ? __pfx_worker_thread+0x10/0x10 [ 68.391642][ T2433] ? __pfx_kthread+0x10/0x10 [ 68.396288][ T2433] ret_from_fork+0x4b/0x80 [ 68.400744][ T2433] ? __pfx_kthread+0x10/0x10 [ 68.405374][ T2433] ret_from_fork_asm+0x1a/0x30 [ 68.410196][ T2433] [ 68.455701][ T2433] [ 68.458090][ T2433] ============================= [ 68.463044][ T2433] WARNING: suspicious RCU usage [ 68.467908][ T2433] 6.10.0-rc3-syzkaller-00156-g6cd4a78d962b #0 Not tainted [ 68.475156][ T2433] ----------------------------- [ 68.480020][ T2433] net/netfilter/ipset/ip_set_core.c:1211 suspicious rcu_dereference_protected() usage! [ 68.489712][ T2433] [ 68.489712][ T2433] other info that might help us debug this: [ 68.489712][ T2433] [ 68.500128][ T2433] [ 68.500128][ T2433] rcu_scheduler_active = 2, debug_locks = 1 [ 68.509189][ T2433] 3 locks held by kworker/u8:9/2433: [ 68.514562][ T2433] #0: ffff888015ed5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 68.525773][ T2433] #1: ffffc9000958fd00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 68.536608][ T2433] #2: ffffffff8f5d9c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 68.546220][ T2433] [ 68.546220][ T2433] stack backtrace: [ 68.552171][ T2433] CPU: 0 PID: 2433 Comm: kworker/u8:9 Not tainted 6.10.0-rc3-syzkaller-00156-g6cd4a78d962b #0 [ 68.562624][ T2433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 68.572972][ T2433] Workqueue: netns cleanup_net [ 68.577861][ T2433] Call Trace: [ 68.581141][ T2433] [ 68.584182][ T2433] dump_stack_lvl+0x241/0x360 [ 68.588887][ T2433] ? __pfx_dump_stack_lvl+0x10/0x10 [ 68.594090][ T2433] ? __pfx__printk+0x10/0x10 [ 68.598708][ T2433] lockdep_rcu_suspicious+0x221/0x340 [ 68.604082][ T2433] _destroy_all_sets+0x53f/0x5f0 [ 68.609109][ T2433] ip_set_net_exit+0x20/0x50 [ 68.613731][ T2433] cleanup_net+0x802/0xcc0 [ 68.618146][ T2433] ? __pfx_cleanup_net+0x10/0x10 [ 68.623086][ T2433] ? process_scheduled_works+0x945/0x1830 [ 68.628802][ T2433] process_scheduled_works+0xa2c/0x1830 [ 68.634388][ T2433] ? __pfx_process_scheduled_works+0x10/0x10 [ 68.640383][ T2433] ? assign_work+0x364/0x3d0 [ 68.645240][ T2433] worker_thread+0x86d/0xd70 [ 68.649843][ T2433] ? __kthread_parkme+0x169/0x1d0 [ 68.654898][ T2433] ? __pfx_worker_thread+0x10/0x10 [ 68.660002][ T2433] kthread+0x2f0/0x390 [ 68.664110][ T2433] ? __pfx_worker_thread+0x10/0x10 [ 68.669300][ T2433] ? __pfx_kthread+0x10/0x10 [ 68.673887][ T2433] ret_from_fork+0x4b/0x80 [ 68.678299][ T2433] ? __pfx_kthread+0x10/0x10 [ 68.682991][ T2433] ret_from_fork_asm+0x1a/0x30 [ 68.687854][ T2433]