Warning: Permanently added '10.128.0.5' (ED25519) to the list of known hosts. 2026/05/31 03:55:38 parsed 1 programs syzkaller login: [ 83.220773][ T5786] cgroup: Unknown subsys name 'net' [ 83.334385][ T5786] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 85.121837][ T5786] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 87.899018][ T51] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 87.908144][ T51] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 87.917694][ T51] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 87.928379][ T51] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 87.936789][ T51] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 87.944160][ T51] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 89.887789][ T1001] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 89.896116][ T1001] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 89.932693][ T12] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 89.940831][ T12] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 90.216904][ T5861] chnl_net:caif_netlink_parms(): no params data found [ 90.341181][ T5861] bridge0: port 1(bridge_slave_0) entered blocking state [ 90.349036][ T5861] bridge0: port 1(bridge_slave_0) entered disabled state [ 90.357078][ T5861] bridge_slave_0: entered allmulticast mode [ 90.364678][ T5861] bridge_slave_0: entered promiscuous mode [ 90.373754][ T5861] bridge0: port 2(bridge_slave_1) entered blocking state [ 90.381110][ T5861] bridge0: port 2(bridge_slave_1) entered disabled state [ 90.388598][ T5861] bridge_slave_1: entered allmulticast mode [ 90.395566][ T5861] bridge_slave_1: entered promiscuous mode [ 90.420276][ T5861] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 90.432541][ T5861] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 90.472086][ T5861] team0: Port device team_slave_0 added [ 90.480547][ T5861] team0: Port device team_slave_1 added [ 90.507878][ T5861] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 90.514971][ T5861] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 90.541257][ T5861] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 90.564836][ T5861] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 90.572010][ T5861] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 90.598326][ T5861] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 90.634903][ T5861] hsr_slave_0: entered promiscuous mode [ 90.641291][ T5861] hsr_slave_1: entered promiscuous mode [ 90.813556][ T5861] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 90.825159][ T5861] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 90.839671][ T5861] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 90.850221][ T5861] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 90.892694][ T5861] bridge0: port 2(bridge_slave_1) entered blocking state [ 90.899970][ T5861] bridge0: port 2(bridge_slave_1) entered forwarding state [ 90.907982][ T5861] bridge0: port 1(bridge_slave_0) entered blocking state [ 90.915267][ T5861] bridge0: port 1(bridge_slave_0) entered forwarding state [ 90.992700][ T5861] 8021q: adding VLAN 0 to HW filter on device bond0 [ 91.023225][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 91.031969][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 91.062005][ T5861] 8021q: adding VLAN 0 to HW filter on device team0 [ 91.074839][ T1001] bridge0: port 1(bridge_slave_0) entered blocking state [ 91.082062][ T1001] bridge0: port 1(bridge_slave_0) entered forwarding state [ 91.101224][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 91.108455][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 91.430652][ T5861] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 91.481530][ T5861] veth0_vlan: entered promiscuous mode [ 91.493124][ T5861] veth1_vlan: entered promiscuous mode [ 91.523680][ T5861] veth0_macvtap: entered promiscuous mode [ 91.533619][ T5861] veth1_macvtap: entered promiscuous mode [ 91.551071][ T5861] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 91.565625][ T5861] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 91.582211][ T5861] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 91.593898][ T5861] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 91.603398][ T5861] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 91.612622][ T5861] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 91.792145][ T12] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 92.133594][ T9] cfg80211: failed to load regulatory.db 2026/05/31 03:55:50 executed programs: 0 [ 93.080815][ T51] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 93.090080][ T51] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 93.099795][ T51] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 93.109528][ T51] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 93.117691][ T51] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 93.125597][ T51] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 93.273925][ T5894] chnl_net:caif_netlink_parms(): no params data found [ 93.336582][ T5894] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.343918][ T5894] bridge0: port 1(bridge_slave_0) entered disabled state [ 93.351317][ T5894] bridge_slave_0: entered allmulticast mode [ 93.358552][ T5894] bridge_slave_0: entered promiscuous mode [ 93.366627][ T5894] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.374052][ T5894] bridge0: port 2(bridge_slave_1) entered disabled state [ 93.381466][ T5894] bridge_slave_1: entered allmulticast mode [ 93.388483][ T5894] bridge_slave_1: entered promiscuous mode [ 93.420750][ T5894] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 93.433522][ T5894] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 93.467110][ T5894] team0: Port device team_slave_0 added [ 93.474721][ T5894] team0: Port device team_slave_1 added [ 93.500936][ T5894] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 93.508181][ T5894] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 93.534237][ T5894] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 93.547108][ T5894] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 93.554157][ T5894] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 93.580525][ T5894] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 93.623437][ T5894] hsr_slave_0: entered promiscuous mode [ 93.629939][ T5894] hsr_slave_1: entered promiscuous mode [ 93.636438][ T5894] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 93.644466][ T5894] Cannot create hsr debugfs directory [ 94.479768][ T12] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 95.167563][ T5086] Bluetooth: hci0: command tx timeout [ 97.103277][ T12] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 97.165726][ T12] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 97.267100][ T5086] Bluetooth: hci0: command tx timeout [ 98.140941][ T5894] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 98.153051][ T5894] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 98.167719][ T5894] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 98.203762][ T5894] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 98.362323][ T12] hsr_slave_0: left promiscuous mode [ 98.372869][ T12] hsr_slave_1: left promiscuous mode [ 98.380833][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 98.388919][ T12] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 98.398868][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 98.408234][ T12] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 98.416345][ T12] bridge_slave_1: left allmulticast mode [ 98.422740][ T12] bridge_slave_1: left promiscuous mode [ 98.429760][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.445771][ T12] bridge_slave_0: left allmulticast mode [ 98.453755][ T12] bridge_slave_0: left promiscuous mode [ 98.462184][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.483797][ T12] veth1_macvtap: left promiscuous mode [ 98.490170][ T12] veth0_macvtap: left promiscuous mode [ 98.495781][ T12] veth1_vlan: left promiscuous mode [ 98.501912][ T12] veth0_vlan: left promiscuous mode [ 98.952962][ T12] team0 (unregistering): Port device team_slave_1 removed [ 98.986159][ T12] team0 (unregistering): Port device team_slave_0 removed [ 99.023370][ T12] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 99.060873][ T12] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 99.311069][ T12] bond0 (unregistering): Released all slaves [ 99.328707][ T5086] Bluetooth: hci0: command tx timeout [ 99.424779][ T5894] 8021q: adding VLAN 0 to HW filter on device bond0 [ 99.445612][ T5894] 8021q: adding VLAN 0 to HW filter on device team0 [ 99.468156][ T1001] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.475456][ T1001] bridge0: port 1(bridge_slave_0) entered forwarding state [ 99.505003][ T2913] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.512235][ T2913] bridge0: port 2(bridge_slave_1) entered forwarding state [ 99.754910][ T5894] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 99.794595][ T5894] veth0_vlan: entered promiscuous mode [ 99.805398][ T5894] veth1_vlan: entered promiscuous mode [ 99.849032][ T5894] veth0_macvtap: entered promiscuous mode [ 99.868936][ T5894] veth1_macvtap: entered promiscuous mode [ 99.911125][ T5894] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 99.931942][ T5894] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 99.945257][ T5894] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.954629][ T5894] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.963440][ T5894] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 99.972916][ T5894] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.036190][ T1001] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 100.051851][ T1001] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 100.092540][ T33] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 100.101257][ T33] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 100.162588][ T5935] [ 100.165078][ T5935] ============================= [ 100.170316][ T5935] WARNING: suspicious RCU usage [ 100.175307][ T5935] syzkaller #0 Not tainted [ 100.180228][ T5935] ----------------------------- [ 100.185186][ T5935] kernel/events/callchain.c:161 suspicious rcu_dereference_check() usage! [ 100.194158][ T5935] [ 100.194158][ T5935] other info that might help us debug this: [ 100.194158][ T5935] [ 100.205055][ T5935] [ 100.205055][ T5935] rcu_scheduler_active = 2, debug_locks = 1 [ 100.213342][ T5935] 1 lock held by syz.0.17/5935: [ 100.219009][ T5935] #0: ffffffff8d132300 (rcu_read_lock_trace){....}-{0:0}, at: rcu_read_lock_trace+0x37/0x70 [ 100.229944][ T5935] [ 100.229944][ T5935] stack backtrace: [ 100.236140][ T5935] CPU: 1 PID: 5935 Comm: syz.0.17 Not tainted syzkaller #0 [ 100.243511][ T5935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 100.253863][ T5935] Call Trace: [ 100.257260][ T5935] [ 100.260205][ T5935] dump_stack_lvl+0x18c/0x250 [ 100.264993][ T5935] ? show_regs_print_info+0x20/0x20 [ 100.270231][ T5935] ? load_image+0x420/0x420 [ 100.274778][ T5935] lockdep_rcu_suspicious+0x1e1/0x300 [ 100.280189][ T5935] get_callchain_entry+0x2a9/0x3c0 [ 100.285339][ T5935] get_perf_callchain+0xc6/0x510 [ 100.290318][ T5935] ? put_callchain_entry+0xb0/0xb0 [ 100.295671][ T5935] ? __lock_acquire+0x7d40/0x7d40 [ 100.300745][ T5935] ? rcu_read_lock_sched_held+0x8a/0x110 [ 100.306403][ T5935] ? __bpf_trace_rcu_stall_warning+0x160/0x160 [ 100.312579][ T5935] __bpf_get_stack+0x2e4/0x540 [ 100.317473][ T5935] ? stack_map_get_build_id_offset+0x720/0x720 [ 100.323672][ T5935] ? __cant_sleep+0x220/0x220 [ 100.328456][ T5935] ? bpf_prog_14d9fb3786f83342+0x45/0x49 [ 100.334299][ T5935] bpf_get_stack_raw_tp+0x1a9/0x210 [ 100.339702][ T5935] bpf_prog_14d9fb3786f83342+0x45/0x49 [ 100.345441][ T5935] bpf_prog_run_pin_on_cpu+0x64/0x150 [ 100.351473][ T5935] bpf_prog_test_run_syscall+0x317/0x4a0 [ 100.357157][ T5935] ? sock_gen_cookie+0x60/0x60 [ 100.361965][ T5935] ? __fdget+0x14a/0x210 [ 100.366250][ T5935] ? sock_gen_cookie+0x60/0x60 [ 100.371062][ T5935] bpf_prog_test_run+0x321/0x390 [ 100.376033][ T5935] __sys_bpf+0x49d/0x890 [ 100.380305][ T5935] ? bpf_link_show_fdinfo+0x390/0x390 [ 100.385710][ T5935] ? lock_chain_count+0x20/0x20 [ 100.390589][ T5935] __x64_sys_bpf+0x7c/0x90 [ 100.395021][ T5935] do_syscall_64+0x55/0xb0 [ 100.399458][ T5935] ? clear_bhb_loop+0x40/0x90 [ 100.404163][ T5935] ? clear_bhb_loop+0x40/0x90 [ 100.408864][ T5935] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 100.414893][ T5935] RIP: 0033:0x7f2c46b9ce59 [ 100.419340][ T5935] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 100.439244][ T5935] RSP: 002b:00007ffd54076488 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 100.447789][ T5935] RAX: ffffffffffffffda RBX: 00007f2c46e15fa0 RCX: 00007f2c46b9ce59 [ 100.456211][ T5935] RDX: 0000000000000010 RSI: 0000200000000740 RDI: 000000000000000a [ 100.464197][ T5935] RBP: 00007f2c46c32d6f R08: 0000000000000000 R09: 0000000000000000 [ 100.472456][ T5935] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 100.480447][ T5935] R13: 00007f2c46e15fac R14: 00007f2c46e15fa0 R15: 00007f2c46e15fa0 [ 100.488445][ T5935]