last executing test programs: 847.546513ms ago: executing program 0: socket$inet6_tcp(0xa, 0x1, 0x0) 835.663432ms ago: executing program 3: socket$inet_tcp(0x2, 0x1, 0x0) 810.116303ms ago: executing program 0: socket$inet_mptcp(0x2, 0x1, 0x106) 808.323704ms ago: executing program 4: socket$pptp(0x18, 0x1, 0x2) 801.189852ms ago: executing program 1: socket$can_bcm(0x1d, 0x2, 0x2) 796.272694ms ago: executing program 3: unshare(0x0) 773.105005ms ago: executing program 4: select(0x0, &(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000)) 768.412715ms ago: executing program 3: socket$inet6_mptcp(0xa, 0x1, 0x106) 765.134558ms ago: executing program 1: getgid() 750.048615ms ago: executing program 0: socket$inet_udp(0x2, 0x2, 0x0) 740.030455ms ago: executing program 3: socket$rds(0x15, 0x5, 0x0) 735.408406ms ago: executing program 1: syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1) 734.687227ms ago: executing program 2: pipe(&(0x7f0000000000)) 729.674128ms ago: executing program 4: socket$vsock_dgram(0x28, 0x2, 0x0) 729.140249ms ago: executing program 0: epoll_pwait(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0, &(0x7f0000000000), 0x0) 720.310918ms ago: executing program 2: sendfile(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0) 705.916877ms ago: executing program 4: socket$phonet_pipe(0x23, 0x5, 0x2) 702.186097ms ago: executing program 0: socket$inet_dccp(0x2, 0x6, 0x0) 698.465799ms ago: executing program 3: socket$inet6_udplite(0xa, 0x2, 0x88) 697.247484ms ago: executing program 1: splice(0xffffffffffffffff, &(0x7f0000000000), 0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0) 685.531088ms ago: executing program 2: socket$bt_bnep(0x1f, 0x3, 0x4) 668.028613ms ago: executing program 1: socket$alg(0x26, 0x5, 0x0) 661.299717ms ago: executing program 4: syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) 651.19833ms ago: executing program 2: socket$inet6_udp(0xa, 0x2, 0x0) 645.823067ms ago: executing program 0: socket$bt_cmtp(0x1f, 0x3, 0x5) 642.870387ms ago: executing program 4: socket$can_raw(0x1d, 0x3, 0x1) 634.868323ms ago: executing program 3: socket$inet_icmp_raw(0x2, 0x3, 0x1) 628.805417ms ago: executing program 2: socket$inet6_dccp(0xa, 0x6, 0x0) 621.153429ms ago: executing program 1: socket$rxrpc(0x21, 0x2, 0x0) 0s ago: executing program 2: 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 '10.128.1.59' (ED25519) to the list of known hosts. 2024/06/18 15:20:32 fuzzer started 2024/06/18 15:20:32 dialing manager at 10.128.0.169:30017 [ 57.391072][ T5094] cgroup: Unknown subsys name 'net' [ 57.639209][ T5094] cgroup: Unknown subsys name 'rlimit' 2024/06/18 15:20:34 starting 5 executor processes [ 58.714493][ T5099] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 58.727354][ T5099] syz-executor (5099) used greatest stack depth: 18744 bytes left [ 59.555915][ T5185] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 60.111391][ T5263] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 60.498448][ T5284] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 60.507468][ T5284] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 60.516026][ T5284] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 60.524332][ T5284] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 60.532599][ T5284] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 60.540455][ T5284] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 60.924059][ T2904] [ 60.926651][ T2904] ============================= [ 60.931696][ T2904] WARNING: suspicious RCU usage [ 60.937098][ T2904] 6.10.0-rc3-syzkaller-00138-gd864319871b0 #0 Not tainted [ 60.944238][ T2904] ----------------------------- [ 60.949566][ T2904] net/netfilter/ipset/ip_set_core.c:1200 suspicious rcu_dereference_protected() usage! [ 60.959266][ T2904] [ 60.959266][ T2904] other info that might help us debug this: [ 60.959266][ T2904] [ 60.969901][ T2904] [ 60.969901][ T2904] rcu_scheduler_active = 2, debug_locks = 1 [ 60.978337][ T2904] 3 locks held by kworker/u8:13/2904: [ 60.983753][ T2904] #0: ffff888015ed5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 60.994767][ T2904] #1: ffffc9000a35fd00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 61.005561][ T2904] #2: ffffffff8f5db250 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 61.015484][ T2904] [ 61.015484][ T2904] stack backtrace: [ 61.021490][ T2904] CPU: 0 PID: 2904 Comm: kworker/u8:13 Not tainted 6.10.0-rc3-syzkaller-00138-gd864319871b0 #0 [ 61.032101][ T2904] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 61.042163][ T2904] Workqueue: netns cleanup_net [ 61.046947][ T2904] Call Trace: [ 61.050226][ T2904] [ 61.053232][ T2904] dump_stack_lvl+0x241/0x360 [ 61.058083][ T2904] ? __pfx_dump_stack_lvl+0x10/0x10 [ 61.063359][ T2904] ? __pfx__printk+0x10/0x10 [ 61.067949][ T2904] lockdep_rcu_suspicious+0x221/0x340 [ 61.073344][ T2904] _destroy_all_sets+0x232/0x5f0 [ 61.078278][ T2904] ip_set_net_exit+0x20/0x50 [ 61.082856][ T2904] cleanup_net+0x802/0xcc0 [ 61.087418][ T2904] ? __pfx_cleanup_net+0x10/0x10 [ 61.092531][ T2904] ? process_scheduled_works+0x945/0x1830 [ 61.098248][ T2904] process_scheduled_works+0xa2c/0x1830 [ 61.103806][ T2904] ? __pfx_process_scheduled_works+0x10/0x10 [ 61.110057][ T2904] ? assign_work+0x364/0x3d0 [ 61.114650][ T2904] worker_thread+0x86d/0xd70 [ 61.119438][ T2904] ? __kthread_parkme+0x169/0x1d0 2024/06/18 15:20:36 SYZFATAL: failed to recv *flatrpc.HostMessageRaw: EOF [ 61.124572][ T2904] ? __pfx_worker_thread+0x10/0x10 [ 61.129762][ T2904] kthread+0x2f0/0x390 [ 61.134120][ T2904] ? __pfx_worker_thread+0x10/0x10 [ 61.139224][ T2904] ? __pfx_kthread+0x10/0x10 [ 61.143829][ T2904] ret_from_fork+0x4b/0x80 [ 61.148247][ T2904] ? __pfx_kthread+0x10/0x10 [ 61.152833][ T2904] ret_from_fork_asm+0x1a/0x30 [ 61.157633][ T2904] [ 61.183692][ T2904] [ 61.186278][ T2904] ============================= [ 61.191148][ T2904] WARNING: suspicious RCU usage [ 61.196197][ T2904] 6.10.0-rc3-syzkaller-00138-gd864319871b0 #0 Not tainted [ 61.203415][ T2904] ----------------------------- [ 61.208349][ T2904] net/netfilter/ipset/ip_set_core.c:1211 suspicious rcu_dereference_protected() usage! [ 61.218056][ T2904] [ 61.218056][ T2904] other info that might help us debug this: [ 61.218056][ T2904] [ 61.228402][ T2904] [ 61.228402][ T2904] rcu_scheduler_active = 2, debug_locks = 1 [ 61.236520][ T2904] 3 locks held by kworker/u8:13/2904: [ 61.241903][ T2904] #0: ffff888015ed5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 61.252916][ T2904] #1: ffffc9000a35fd00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 61.263685][ T2904] #2: ffffffff8f5db250 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 61.273444][ T2904] [ 61.273444][ T2904] stack backtrace: [ 61.279500][ T2904] CPU: 1 PID: 2904 Comm: kworker/u8:13 Not tainted 6.10.0-rc3-syzkaller-00138-gd864319871b0 #0 [ 61.289950][ T2904] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 61.300030][ T2904] Workqueue: netns cleanup_net [ 61.304842][ T2904] Call Trace: [ 61.308146][ T2904] [ 61.311089][ T2904] dump_stack_lvl+0x241/0x360 [ 61.315799][ T2904] ? __pfx_dump_stack_lvl+0x10/0x10 [ 61.321029][ T2904] ? __pfx__printk+0x10/0x10 [ 61.325750][ T2904] lockdep_rcu_suspicious+0x221/0x340 [ 61.331156][ T2904] _destroy_all_sets+0x53f/0x5f0 [ 61.336112][ T2904] ip_set_net_exit+0x20/0x50 [ 61.340702][ T2904] cleanup_net+0x802/0xcc0 [ 61.345122][ T2904] ? __pfx_cleanup_net+0x10/0x10 [ 61.350065][ T2904] ? process_scheduled_works+0x945/0x1830 [ 61.355863][ T2904] process_scheduled_works+0xa2c/0x1830 [ 61.361774][ T2904] ? __pfx_process_scheduled_works+0x10/0x10 [ 61.367753][ T2904] ? assign_work+0x364/0x3d0 [ 61.372356][ T2904] worker_thread+0x86d/0xd70 [ 61.376953][ T2904] ? __kthread_parkme+0x169/0x1d0 [ 61.381973][ T2904] ? __pfx_worker_thread+0x10/0x10 [ 61.387083][ T2904] kthread+0x2f0/0x390 [ 61.391153][ T2904] ? __pfx_worker_thread+0x10/0x10 [ 61.396252][ T2904] ? __pfx_kthread+0x10/0x10 [ 61.400840][ T2904] ret_from_fork+0x4b/0x80 [ 61.405253][ T2904] ? __pfx_kthread+0x10/0x10 [ 61.409929][ T2904] ret_from_fork_asm+0x1a/0x30 [ 61.414783][ T2904]