last executing test programs: 268.881608ms ago: executing program 1: recvmmsg(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0, 0x0) 227.121426ms ago: executing program 1: socket$hf(0x13, 0x2, 0x0) 214.829924ms ago: executing program 0: sendfile(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0) 205.383554ms ago: executing program 2: syz_init_net_socket$netrom(0x6, 0x5, 0x0) 180.237476ms ago: executing program 0: socket$nl_rdma(0x10, 0x3, 0x14) 178.686018ms ago: executing program 3: tee(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0) 164.856113ms ago: executing program 3: socket$inet6_icmp_raw(0xa, 0x3, 0x3a) 159.911804ms ago: executing program 2: socket$inet6_tcp(0xa, 0x1, 0x0) 139.373178ms ago: executing program 0: epoll_create(0x0) 135.857762ms ago: executing program 2: socket$inet_icmp(0x2, 0x2, 0x1) 125.404885ms ago: executing program 3: socket$nl_crypto(0x10, 0x3, 0x15) 123.946892ms ago: executing program 4: socket$tipc(0x1e, 0x2, 0x0) 109.742978ms ago: executing program 1: socket$can_bcm(0x1d, 0x2, 0x2) 107.053054ms ago: executing program 0: socket$netlink(0x10, 0x3, 0x0) 103.42528ms ago: executing program 2: readv(0xffffffffffffffff, &(0x7f0000000000), 0x0) 92.006259ms ago: executing program 4: syz_init_net_socket$llc(0x1a, 0x1, 0x0) 82.998272ms ago: executing program 3: socket$phonet(0x23, 0x2, 0x1) 77.692835ms ago: executing program 2: socket$igmp(0x2, 0x3, 0x2) 73.837184ms ago: executing program 0: socket$rds(0x15, 0x5, 0x0) 71.382075ms ago: executing program 1: preadv(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0, 0x0) 65.359725ms ago: executing program 4: socket$bt_rfcomm(0x1f, 0x1, 0x3) 57.91024ms ago: executing program 4: socket$inet_mptcp(0x2, 0x1, 0x106) 47.631339ms ago: executing program 1: socket$rxrpc(0x21, 0x2, 0x0) 43.485694ms ago: executing program 3: getuid() 35.596862ms ago: executing program 2: pread64(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0) 27.771517ms ago: executing program 0: unshare(0x0) 27.305997ms ago: executing program 4: socket$bt_cmtp(0x1f, 0x3, 0x5) 13.205771ms ago: executing program 1: socket$unix(0x1, 0x1, 0x0) 7.109503ms ago: executing program 3: syz_init_net_socket$nl_rdma(0x10, 0x3, 0x14) 0s ago: executing program 4: socket$inet6_sctp(0xa, 0x1, 0x84) kernel console output (not intermixed with test programs): Warning: Permanently added '10.128.1.122' (ED25519) to the list of known hosts. 2024/06/20 17:17:59 fuzzer started 2024/06/20 17:17:59 dialing manager at 10.128.0.169:30019 [ 58.104832][ T5090] cgroup: Unknown subsys name 'net' [ 58.348216][ T5090] cgroup: Unknown subsys name 'rlimit' 2024/06/20 17:18:01 starting 5 executor processes [ 59.499895][ T5092] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 59.512332][ T5092] syz-executor (5092) used greatest stack depth: 18800 bytes left [ 60.405455][ T5189] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 60.634698][ T5221] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 61.259365][ T5281] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 61.278635][ T5281] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 61.286643][ T5281] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 61.298914][ T5281] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 61.318584][ T5281] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 61.328809][ T5281] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 61.675187][ T1035] [ 61.677728][ T1035] ============================= [ 61.677745][ T1035] WARNING: suspicious RCU usage [ 61.677754][ T1035] 6.10.0-rc3-syzkaller-00754-ge3511997d7dc #0 Not tainted [ 61.694770][ T1035] ----------------------------- [ 61.699704][ T1035] net/netfilter/ipset/ip_set_core.c:1200 suspicious rcu_dereference_protected() usage! [ 61.709393][ T1035] [ 61.709393][ T1035] other info that might help us debug this: [ 61.709393][ T1035] [ 61.719725][ T1035] [ 61.719725][ T1035] rcu_scheduler_active = 2, debug_locks = 1 [ 61.728015][ T1035] 3 locks held by kworker/u8:5/1035: [ 61.733405][ T1035] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 61.744429][ T1035] #1: ffffc9000420fd00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 61.755158][ T1035] #2: ffffffff8f5da110 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 61.764701][ T1035] [ 61.764701][ T1035] stack backtrace: [ 61.771207][ T1035] CPU: 0 PID: 1035 Comm: kworker/u8:5 Not tainted 6.10.0-rc3-syzkaller-00754-ge3511997d7dc #0 [ 61.781619][ T1035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 61.791704][ T1035] Workqueue: netns cleanup_net [ 61.796510][ T1035] Call Trace: [ 61.799807][ T1035] [ 61.802851][ T1035] dump_stack_lvl+0x241/0x360 [ 61.807656][ T1035] ? __pfx_dump_stack_lvl+0x10/0x10 [ 61.812899][ T1035] ? __pfx__printk+0x10/0x10 [ 61.817530][ T1035] lockdep_rcu_suspicious+0x221/0x340 2024/06/20 17:18:03 SYZFATAL: failed to recv *flatrpc.HostMessageRaw: EOF [ 61.822943][ T1035] _destroy_all_sets+0x232/0x5f0 [ 61.827920][ T1035] ip_set_net_exit+0x20/0x50 [ 61.832589][ T1035] cleanup_net+0x802/0xcc0 [ 61.837044][ T1035] ? __pfx_cleanup_net+0x10/0x10 [ 61.842103][ T1035] ? process_scheduled_works+0x945/0x1830 [ 61.847825][ T1035] process_scheduled_works+0xa2c/0x1830 [ 61.848926][ T1103] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 61.853391][ T1035] ? __pfx_process_scheduled_works+0x10/0x10 [ 61.867235][ T1035] ? assign_work+0x364/0x3d0 [ 61.871848][ T1035] worker_thread+0x86d/0xd70 [ 61.876473][ T1035] ? __kthread_parkme+0x169/0x1d0 [ 61.881514][ T1035] ? __pfx_worker_thread+0x10/0x10 [ 61.886622][ T1035] kthread+0x2f0/0x390 [ 61.890685][ T1035] ? __pfx_worker_thread+0x10/0x10 [ 61.895789][ T1035] ? __pfx_kthread+0x10/0x10 [ 61.900546][ T1035] ret_from_fork+0x4b/0x80 [ 61.905041][ T1035] ? __pfx_kthread+0x10/0x10 [ 61.909622][ T1035] ret_from_fork_asm+0x1a/0x30 [ 61.914394][ T1035] [ 61.938687][ T1103] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 61.968813][ T1035] [ 61.971199][ T1035] ============================= [ 61.976161][ T1035] WARNING: suspicious RCU usage [ 61.981357][ T1035] 6.10.0-rc3-syzkaller-00754-ge3511997d7dc #0 Not tainted [ 61.988818][ T1035] ----------------------------- [ 61.993948][ T1035] net/netfilter/ipset/ip_set_core.c:1211 suspicious rcu_dereference_protected() usage! [ 62.004223][ T1035] [ 62.004223][ T1035] other info that might help us debug this: [ 62.004223][ T1035] [ 62.014740][ T1035] [ 62.014740][ T1035] rcu_scheduler_active = 2, debug_locks = 1 [ 62.023065][ T1035] 3 locks held by kworker/u8:5/1035: [ 62.028776][ T1035] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 62.040164][ T1035] #1: ffffc9000420fd00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 62.051125][ T1035] #2: ffffffff8f5da110 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 62.060846][ T1035] [ 62.060846][ T1035] stack backtrace: [ 62.067013][ T1035] CPU: 1 PID: 1035 Comm: kworker/u8:5 Not tainted 6.10.0-rc3-syzkaller-00754-ge3511997d7dc #0 [ 62.077452][ T1035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 62.087536][ T1035] Workqueue: netns cleanup_net [ 62.092411][ T1035] Call Trace: [ 62.095758][ T1035] [ 62.098711][ T1035] dump_stack_lvl+0x241/0x360 [ 62.103514][ T1035] ? __pfx_dump_stack_lvl+0x10/0x10 [ 62.108746][ T1035] ? __pfx__printk+0x10/0x10 [ 62.113368][ T1035] lockdep_rcu_suspicious+0x221/0x340 [ 62.118808][ T1035] _destroy_all_sets+0x53f/0x5f0 [ 62.123785][ T1035] ip_set_net_exit+0x20/0x50 [ 62.129033][ T1035] cleanup_net+0x802/0xcc0 [ 62.133654][ T1035] ? __pfx_cleanup_net+0x10/0x10 [ 62.139132][ T1035] ? process_scheduled_works+0x945/0x1830 [ 62.145501][ T1035] process_scheduled_works+0xa2c/0x1830 [ 62.151120][ T1035] ? __pfx_process_scheduled_works+0x10/0x10 [ 62.157403][ T1035] ? assign_work+0x364/0x3d0 [ 62.162162][ T1035] worker_thread+0x86d/0xd70 [ 62.167597][ T1035] ? __kthread_parkme+0x169/0x1d0 [ 62.173092][ T1035] ? __pfx_worker_thread+0x10/0x10 [ 62.178743][ T1035] kthread+0x2f0/0x390 [ 62.182838][ T1035] ? __pfx_worker_thread+0x10/0x10 [ 62.188070][ T1035] ? __pfx_kthread+0x10/0x10 [ 62.192675][ T1035] ret_from_fork+0x4b/0x80 [ 62.197584][ T1035] ? __pfx_kthread+0x10/0x10 [ 62.202204][ T1035] ret_from_fork_asm+0x1a/0x30 [ 62.207445][ T1035]