last executing test programs: 977.308106ms ago: executing program 1: socket$hf(0x13, 0x2, 0x0) 891.7808ms ago: executing program 3: syz_init_net_socket$rose(0xb, 0x5, 0x0) 852.668015ms ago: executing program 0: socket$nl_xfrm(0x10, 0x3, 0x6) 850.99293ms ago: executing program 3: syz_init_net_socket$ax25(0x3, 0x2, 0x0) 840.697426ms ago: executing program 2: socket$nl_sock_diag(0x10, 0x3, 0x4) 840.13873ms ago: executing program 1: socket(0x1, 0x1, 0x0) 827.249068ms ago: executing program 0: openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ppp', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/ppp', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/ppp', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/ppp', 0x800, 0x0) 820.743454ms ago: executing program 2: socket$bt_cmtp(0x1f, 0x3, 0x5) 812.434621ms ago: executing program 1: socket$unix(0x1, 0x1, 0x0) 811.978455ms ago: executing program 3: pipe(&(0x7f0000000000)) 807.23717ms ago: executing program 4: socket$inet6_sctp(0xa, 0x1, 0x84) 798.482887ms ago: executing program 0: socket$inet6_icmp_raw(0xa, 0x3, 0x3a) 781.161682ms ago: executing program 4: poll(&(0x7f0000000000), 0x0, 0x0) 780.728467ms ago: executing program 2: socket$phonet_pipe(0x23, 0x5, 0x2) 770.193127ms ago: executing program 0: socket$inet6_udp(0xa, 0x2, 0x0) 769.1431ms ago: executing program 1: socket$xdp(0x2c, 0x3, 0x0) 767.795105ms ago: executing program 3: epoll_create1(0x0) 759.113486ms ago: executing program 4: socket$l2tp6(0xa, 0x2, 0x73) 740.535766ms ago: executing program 3: syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) 737.916367ms ago: executing program 0: socket$caif_stream(0x25, 0x1, 0x0) 729.095366ms ago: executing program 1: syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x0) 728.53077ms ago: executing program 4: socket$kcm(0x29, 0x2, 0x0) 720.198503ms ago: executing program 2: getgid() 714.718707ms ago: executing program 4: socket$bt_bnep(0x1f, 0x3, 0x4) 705.476303ms ago: executing program 2: socket$inet6_tcp(0xa, 0x1, 0x0) 695.577813ms ago: executing program 1: clock_gettime(0x0, &(0x7f0000000000)) 686.114586ms ago: executing program 0: socket$inet6_mptcp(0xa, 0x1, 0x106) 682.003893ms ago: executing program 3: tee(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0) 676.523294ms ago: executing program 2: shutdown(0xffffffffffffffff, 0x0) 0s 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) kernel console output (not intermixed with test programs): Warning: Permanently added '10.128.0.113' (ED25519) to the list of known hosts. 2024/06/19 08:22:51 fuzzer started 2024/06/19 08:22:52 dialing manager at 10.128.0.169:30019 [ 58.148698][ T5089] cgroup: Unknown subsys name 'net' [ 58.417944][ T5089] cgroup: Unknown subsys name 'rlimit' 2024/06/19 08:22:53 starting 5 executor processes [ 59.581188][ T5112] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 60.410886][ T5177] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 60.701933][ T5217] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 61.816140][ T12] [ 61.818957][ T12] ============================= [ 61.823846][ T12] WARNING: suspicious RCU usage [ 61.829090][ T12] 6.10.0-rc3-syzkaller-00710-g382d1741b5b2 #0 Not tainted [ 61.836328][ T12] ----------------------------- [ 61.841646][ T12] net/netfilter/ipset/ip_set_core.c:1200 suspicious rcu_dereference_protected() usage! [ 61.851877][ T12] [ 61.851877][ T12] other info that might help us debug this: [ 61.851877][ T12] [ 61.862268][ T12] [ 61.862268][ T12] rcu_scheduler_active = 2, debug_locks = 1 [ 61.870509][ T12] 3 locks held by kworker/u8:1/12: [ 61.875642][ T12] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 61.886774][ T12] #1: ffffc90000117d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 61.897444][ T12] #2: ffffffff8f5da0d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 61.907021][ T12] [ 61.907021][ T12] stack backtrace: [ 61.913318][ T12] CPU: 1 PID: 12 Comm: kworker/u8:1 Not tainted 6.10.0-rc3-syzkaller-00710-g382d1741b5b2 #0 [ 61.923585][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 61.933665][ T12] Workqueue: netns cleanup_net [ 61.938485][ T12] Call Trace: [ 61.941793][ T12] [ 61.944739][ T12] dump_stack_lvl+0x241/0x360 [ 61.949617][ T12] ? __pfx_dump_stack_lvl+0x10/0x10 [ 61.954819][ T12] ? __pfx__printk+0x10/0x10 [ 61.959504][ T12] lockdep_rcu_suspicious+0x221/0x340 [ 61.964909][ T12] _destroy_all_sets+0x232/0x5f0 [ 61.969942][ T12] ip_set_net_exit+0x20/0x50 [ 61.974535][ T12] cleanup_net+0x802/0xcc0 [ 61.979038][ T12] ? __pfx_cleanup_net+0x10/0x10 [ 61.983985][ T12] ? process_scheduled_works+0x945/0x1830 [ 61.989791][ T12] process_scheduled_works+0xa2c/0x1830 [ 61.995401][ T12] ? __pfx_process_scheduled_works+0x10/0x10 [ 62.001409][ T12] ? assign_work+0x364/0x3d0 [ 62.006006][ T12] worker_thread+0x86d/0xd70 [ 62.010622][ T12] ? __kthread_parkme+0x169/0x1d0 2024/06/19 08:22:56 SYZFATAL: failed to recv *flatrpc.HostMessageRaw: EOF [ 62.016022][ T12] ? __pfx_worker_thread+0x10/0x10 [ 62.021161][ T12] kthread+0x2f0/0x390 [ 62.025231][ T12] ? __pfx_worker_thread+0x10/0x10 [ 62.030343][ T12] ? __pfx_kthread+0x10/0x10 [ 62.034927][ T12] ret_from_fork+0x4b/0x80 [ 62.039339][ T12] ? __pfx_kthread+0x10/0x10 [ 62.043922][ T12] ret_from_fork_asm+0x1a/0x30 [ 62.048707][ T12] [ 62.110339][ T5286] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 62.119408][ T5286] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 62.127885][ T5286] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 62.152638][ T12] [ 62.155015][ T12] ============================= [ 62.160412][ T12] WARNING: suspicious RCU usage [ 62.165620][ T12] 6.10.0-rc3-syzkaller-00710-g382d1741b5b2 #0 Not tainted [ 62.172939][ T12] ----------------------------- [ 62.178019][ T12] net/netfilter/ipset/ip_set_core.c:1211 suspicious rcu_dereference_protected() usage! [ 62.187718][ T12] [ 62.187718][ T12] other info that might help us debug this: [ 62.187718][ T12] [ 62.198101][ T12] [ 62.198101][ T12] rcu_scheduler_active = 2, debug_locks = 1 [ 62.206367][ T12] 3 locks held by kworker/u8:1/12: [ 62.211618][ T12] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 62.222728][ T12] #1: ffffc90000117d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 62.233478][ T12] #2: ffffffff8f5da0d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 62.243188][ T12] [ 62.243188][ T12] stack backtrace: [ 62.249182][ T12] CPU: 0 PID: 12 Comm: kw