last executing test programs: 1.287522676s ago: executing program 2: socket$vsock_stream(0x28, 0x1, 0x0) 1.247449674s ago: executing program 2: openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/cmdline', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/proc/cmdline', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/proc/cmdline', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/proc/cmdline', 0x800, 0x0) 1.240018764s ago: executing program 0: syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x0) 1.238353491s ago: executing program 3: getuid() 1.234678869s ago: executing program 1: socket$can_bcm(0x1d, 0x2, 0x2) 1.224700848s ago: executing program 3: socket$inet6_icmp_raw(0xa, 0x3, 0x3a) 1.224267961s ago: executing program 2: epoll_create1(0x0) 1.223963497s ago: executing program 4: socket$tipc(0x1e, 0x2, 0x0) 1.211199408s ago: executing program 4: socket$pppl2tp(0x18, 0x1, 0x1) 1.207172951s ago: executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0, &(0x7f0000000000), 0x0) 1.192473469s ago: executing program 0: socket$netlink(0x10, 0x3, 0x0) 1.177607217s ago: executing program 4: getgid() 1.175909086s ago: executing program 1: epoll_wait(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0) 1.175592361s ago: executing program 3: socket$can_raw(0x1d, 0x3, 0x1) 1.175089134s ago: executing program 2: socket$inet6_mptcp(0xa, 0x1, 0x106) 1.156329841s ago: executing program 2: socket$bt_cmtp(0x1f, 0x3, 0x5) 1.154559984s ago: executing program 0: listen(0xffffffffffffffff, 0x0) 1.14871398s ago: executing program 1: socket$inet_udp(0x2, 0x2, 0x0) 1.141399893s ago: executing program 3: shutdown(0xffffffffffffffff, 0x0) 1.133619171s ago: executing program 4: socket$l2tp6(0xa, 0x2, 0x73) 1.121561626s ago: executing program 0: preadv(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0, 0x0) 1.119108199s ago: executing program 2: socket$qrtr(0x2a, 0x2, 0x0) 1.109730912s ago: executing program 1: socket$isdn_base(0x22, 0x3, 0x0) 1.105432128s ago: executing program 3: socket$inet_dccp(0x2, 0x6, 0x0) 1.097702954s ago: executing program 0: socket$inet_smc(0x2b, 0x1, 0x0) 1.096648056s ago: executing program 4: socket$inet_udplite(0x2, 0x2, 0x88) 307.654819ms 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) 264.143252ms 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) 22.59198ms ago: executing program 4: 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 1: 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 '10.128.0.78' (ED25519) to the list of known hosts. 2024/06/19 08:51:31 fuzzer started 2024/06/19 08:51:32 dialing manager at 10.128.0.169:30017 [ 59.858035][ T5092] cgroup: Unknown subsys name 'net' [ 60.149054][ T5092] cgroup: Unknown subsys name 'rlimit' 2024/06/19 08:51:33 starting 5 executor processes [ 61.302441][ T5106] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 62.020028][ T5166] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 62.766555][ T5262] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 62.994329][ T5273] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 63.002936][ T5273] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 63.012766][ T5273] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 63.027893][ T5273] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 63.036167][ T5273] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 63.044064][ T5273] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 63.827312][ T11] [ 63.829879][ T11] ============================= [ 63.834751][ T11] WARNING: suspicious RCU usage [ 63.839720][ T11] 6.10.0-rc3-syzkaller-00145-gb8c43360f6e4 #0 Not tainted [ 63.847186][ T11] ----------------------------- [ 63.852054][ T11] net/netfilter/ipset/ip_set_core.c:1200 suspicious rcu_dereference_protected() usage! [ 63.861884][ T11] [ 63.861884][ T11] other info that might help us debug this: [ 63.861884][ T11] [ 63.872190][ T11] 2024/06/19 08:51:36 SYZFATAL: failed to recv *flatrpc.HostMessageRaw: EOF [ 63.872190][ T11] rcu_scheduler_active = 2, debug_locks = 1 [ 63.880443][ T11] 3 locks held by kworker/u8:0/11: [ 63.885600][ T11] #0: ffff888015ed5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 63.896796][ T11] #1: ffffc90000107d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 63.907449][ T11] #2: ffffffff8f5d9c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 63.917006][ T11] [ 63.917006][ T11] stack backtrace: [ 63.923010][ T11] CPU: 1 PID: 11 Comm: kworker/u8:0 Not tainted 6.10.0-rc3-syzkaller-00145-gb8c43360f6e4 #0 [ 63.933099][ T11] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 63.943188][ T11] Workqueue: netns cleanup_net [ 63.948016][ T11] Call Trace: [ 63.951419][ T11] [ 63.954365][ T11] dump_stack_lvl+0x241/0x360 [ 63.958682][ T2475] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 63.959228][ T11] ? __pfx_dump_stack_lvl+0x10/0x10 [ 63.972771][ T11] ? __pfx__printk+0x10/0x10 [ 63.977417][ T11] lockdep_rcu_suspicious+0x221/0x340 [ 63.982829][ T11] _destroy_all_sets+0x232/0x5f0 [ 63.986004][ T2475] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 63.987792][ T11] ip_set_net_exit+0x20/0x50 [ 63.999850][ T11] cleanup_net+0x802/0xcc0 [ 64.004309][ T11] ? __pfx_cleanup_net+0x10/0x10 [ 64.009548][ T11] ? process_scheduled_works+0x945/0x1830 [ 64.015391][ T11] process_scheduled_works+0xa2c/0x1830 [ 64.021176][ T11] ? __pfx_process_scheduled_works+0x10/0x10 [ 64.027201][ T11] ? assign_work+0x364/0x3d0 [ 64.031821][ T11] worker_thread+0x86d/0xd70 [ 64.036450][ T11] ? __kthread_parkme+0x169/0x1d0 [ 64.041494][ T11] ? __pfx_worker_thread+0x10/0x10 [ 64.046622][ T11] kthread+0x2f0/0x390 [ 64.050717][ T11] ? __pfx_worker_thread+0x10/0x10 [ 64.055856][ T11] ? __pfx_kthread+0x10/0x10 [ 64.060481][ T11] ret_from_fork+0x4b/0x80 [ 64.065013][ T11] ? __pfx_kthread+0x10/0x10 [ 64.069717][ T11] ret_from_fork_asm+0x1a/0x30 [ 64.074517][ T11] [ 64.252309][ T11] [ 64.254774][ T11] ============================= [ 64.260154][ T11] WARNING: suspicious RCU usage [ 64.265029][ T11] 6.10.0-rc3-syzkaller-00145-gb8c43360f6e4 #0 Not tainted [ 64.272343][ T11] ----------------------------- [ 64.277278][ T11] net/netfilter/ipset/ip_set_core.c:1211 suspicious rcu_dereference_protected() usage! [ 64.287246][ T11] [ 64.287246][ T11] other info that might help us debug this: [ 64.287246][ T11] [ 64.297652][ T11] [ 64.297652][ T11] rcu_sched