Warning: Permanently added '10.128.0.89' (ED25519) to the list of known hosts. 2026/02/12 14:52:29 parsed 1 programs syzkaller login: [ 89.411978][ T5832] cgroup: Unknown subsys name 'net' [ 89.564351][ T5832] cgroup: Unknown subsys name 'cpuset' [ 89.573235][ T5832] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 91.199607][ T5832] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 92.032713][ T24] cfg80211: failed to load regulatory.db [ 93.950079][ T5841] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 96.117204][ T5886] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 96.125433][ T5886] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 96.135319][ T5886] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 96.144456][ T5886] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 96.153824][ T5886] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 96.839478][ T5902] chnl_net:caif_netlink_parms(): no params data found [ 96.943974][ T5902] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.952081][ T5902] bridge0: port 1(bridge_slave_0) entered disabled state [ 96.959295][ T5902] bridge_slave_0: entered allmulticast mode [ 96.969609][ T5902] bridge_slave_0: entered promiscuous mode [ 96.979016][ T5902] bridge0: port 2(bridge_slave_1) entered blocking state [ 96.987620][ T5902] bridge0: port 2(bridge_slave_1) entered disabled state [ 96.994947][ T5902] bridge_slave_1: entered allmulticast mode [ 97.002176][ T5902] bridge_slave_1: entered promiscuous mode [ 97.031654][ T5902] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 97.043552][ T5902] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 97.073655][ T5902] team0: Port device team_slave_0 added [ 97.083410][ T5902] team0: Port device team_slave_1 added [ 97.115996][ T5902] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 97.123034][ T5902] 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 1532 would solve the problem. [ 97.150164][ T5902] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 97.162956][ T5902] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 97.170004][ T5902] 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 1532 would solve the problem. [ 97.196714][ T5902] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 97.238648][ T5902] hsr_slave_0: entered promiscuous mode [ 97.245038][ T5902] hsr_slave_1: entered promiscuous mode [ 97.377235][ T5902] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 97.389057][ T5902] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 97.399082][ T5902] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 97.409297][ T5902] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 97.476948][ T5902] 8021q: adding VLAN 0 to HW filter on device bond0 [ 97.503413][ T5902] 8021q: adding VLAN 0 to HW filter on device team0 [ 97.516886][ T13] bridge0: port 1(bridge_slave_0) entered blocking state [ 97.524156][ T13] bridge0: port 1(bridge_slave_0) entered forwarding state [ 97.538666][ T36] bridge0: port 2(bridge_slave_1) entered blocking state [ 97.545873][ T36] bridge0: port 2(bridge_slave_1) entered forwarding state [ 97.707750][ T5902] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 97.748292][ T5902] veth0_vlan: entered promiscuous mode [ 97.759351][ T5902] veth1_vlan: entered promiscuous mode [ 97.787914][ T5902] veth0_macvtap: entered promiscuous mode [ 97.796851][ T5902] veth1_macvtap: entered promiscuous mode [ 97.817333][ T5902] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 97.832499][ T5902] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 97.846696][ T13] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.856537][ T13] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.871786][ T13] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.881508][ T13] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 98.038527][ T36] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 98.122381][ T36] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 98.165843][ T2962] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 98.174555][ T2962] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 98.201624][ T36] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 98.232700][ T12] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 98.241062][ T12] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 98.269271][ T36] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/02/12 14:52:41 executed programs: 0 [ 98.749247][ T5145] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 98.759080][ T5145] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 98.767502][ T5145] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 98.777491][ T5145] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 98.785408][ T5145] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 98.938292][ T5933] chnl_net:caif_netlink_parms(): no params data found [ 99.013748][ T5933] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.021086][ T5933] bridge0: port 1(bridge_slave_0) entered disabled state [ 99.028205][ T5933] bridge_slave_0: entered allmulticast mode [ 99.035507][ T5933] bridge_slave_0: entered promiscuous mode [ 99.043977][ T5933] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.052084][ T5933] bridge0: port 2(bridge_slave_1) entered disabled state [ 99.059263][ T5933] bridge_slave_1: entered allmulticast mode [ 99.067297][ T5933] bridge_slave_1: entered promiscuous mode [ 99.098940][ T5933] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 99.110774][ T5933] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 99.139517][ T5933] team0: Port device team_slave_0 added [ 99.147105][ T5933] team0: Port device team_slave_1 added [ 99.175298][ T5933] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 99.182301][ T5933] 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 1532 would solve the problem. [ 99.208213][ T5933] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 99.222067][ T5933] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 99.229027][ T5933] 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 1532 would solve the problem. [ 99.256915][ T5933] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 99.303619][ T5933] hsr_slave_0: entered promiscuous mode [ 99.309871][ T5933] hsr_slave_1: entered promiscuous mode [ 99.316272][ T5933] debugfs: 'hsr0' already exists in 'hsr' [ 99.322288][ T5933] Cannot create hsr debugfs directory [ 100.831199][ T5145] Bluetooth: hci0: command tx timeout [ 100.957214][ T36] bridge_slave_1: left allmulticast mode [ 100.970944][ T36] bridge_slave_1: left promiscuous mode [ 100.977396][ T36] bridge0: port 2(bridge_slave_1) entered disabled state [ 100.990123][ T36] bridge_slave_0: left allmulticast mode [ 101.002802][ T36] bridge_slave_0: left promiscuous mode [ 101.008620][ T36] bridge0: port 1(bridge_slave_0) entered disabled state [ 101.331949][ T36] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 101.353733][ T36] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 101.365080][ T36] bond0 (unregistering): Released all slaves [ 101.493488][ T36] hsr_slave_0: left promiscuous mode [ 101.499722][ T36] hsr_slave_1: left promiscuous mode [ 101.508961][ T36] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 101.518635][ T36] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 101.527417][ T36] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 101.535136][ T36] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 101.550469][ T36] veth1_macvtap: left promiscuous mode [ 101.556181][ T36] veth0_macvtap: left promiscuous mode [ 101.562880][ T36] veth1_vlan: left promiscuous mode [ 101.568201][ T36] veth0_vlan: left promiscuous mode [ 101.874496][ T36] team0 (unregistering): Port device team_slave_1 removed [ 101.902918][ T36] team0 (unregistering): Port device team_slave_0 removed [ 102.323571][ T5933] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 102.348174][ T5933] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 102.363553][ T5933] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 102.377139][ T5933] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 102.631353][ T5933] 8021q: adding VLAN 0 to HW filter on device bond0 [ 102.667768][ T5933] 8021q: adding VLAN 0 to HW filter on device team0 [ 102.688621][ T3508] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.695834][ T3508] bridge0: port 1(bridge_slave_0) entered forwarding state [ 102.712485][ T3508] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.719658][ T3508] bridge0: port 2(bridge_slave_1) entered forwarding state [ 102.911308][ T5145] Bluetooth: hci0: command tx timeout [ 103.043868][ T5933] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 103.080345][ T5933] veth0_vlan: entered promiscuous mode [ 103.094465][ T5933] veth1_vlan: entered promiscuous mode [ 103.122009][ T5933] veth0_macvtap: entered promiscuous mode [ 103.131013][ T5933] veth1_macvtap: entered promiscuous mode [ 103.147860][ T5933] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 103.166066][ T5933] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 103.179771][ T36] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.188901][ T36] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.201874][ T36] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.210855][ T36] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.264767][ T13] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 103.273820][ T13] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 103.298624][ T13] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 103.306757][ T13] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 103.356637][ T5980] [ 103.359158][ T5980] ============================= [ 103.364374][ T5980] WARNING: suspicious RCU usage [ 103.369239][ T5980] syzkaller #0 Not tainted [ 103.374083][ T5980] ----------------------------- [ 103.378945][ T5980] kernel/events/callchain.c:163 suspicious rcu_dereference_check() usage! [ 103.387894][ T5980] [ 103.387894][ T5980] other info that might help us debug this: [ 103.387894][ T5980] [ 103.398885][ T5980] [ 103.398885][ T5980] rcu_scheduler_active = 2, debug_locks = 1 [ 103.407392][ T5980] 1 lock held by syz.0.17/5980: [ 103.412555][ T5980] #0: ffffffff8e55a540 (rcu_read_lock_trace){....}-{0:0}, at: rcu_read_lock_trace+0x37/0x80 [ 103.422913][ T5980] [ 103.422913][ T5980] stack backtrace: [ 103.428819][ T5980] CPU: 1 UID: 0 PID: 5980 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) [ 103.428834][ T5980] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 [ 103.428841][ T5980] Call Trace: [ 103.428846][ T5980] [ 103.428851][ T5980] dump_stack_lvl+0xe8/0x150 [ 103.428870][ T5980] lockdep_rcu_suspicious+0x13f/0x1d0 [ 103.428890][ T5980] get_callchain_entry+0x2b6/0x3c0 [ 103.428908][ T5980] get_perf_callchain+0xd5/0x880 [ 103.428927][ T5980] ? __pfx_get_perf_callchain+0x10/0x10 [ 103.428944][ T5980] ? __lock_acquire+0x6b5/0x2cf0 [ 103.428964][ T5980] __bpf_get_stack+0x445/0xab0 [ 103.428984][ T5980] ? __pfx___bpf_get_stack+0x10/0x10 [ 103.429003][ T5980] ? __lock_acquire+0x6b5/0x2cf0 [ 103.429020][ T5980] bpf_get_stack+0x33/0x50 [ 103.429035][ T5980] ? bpf_prog_e8e6327ccf46c9a7+0x46/0x4e [ 103.429046][ T5980] bpf_get_stack_raw_tp+0x1a9/0x220 [ 103.429066][ T5980] bpf_prog_e8e6327ccf46c9a7+0x46/0x4e [ 103.429077][ T5980] bpf_prog_run_pin_on_cpu+0x142/0x470 [ 103.429093][ T5980] bpf_prog_test_run_syscall+0x318/0x4c0 [ 103.429107][ T5980] ? __pfx_bpf_prog_test_run_syscall+0x10/0x10 [ 103.429123][ T5980] ? __pfx_bpf_prog_test_run_syscall+0x10/0x10 [ 103.429136][ T5980] bpf_prog_test_run+0x2c7/0x340 [ 103.429150][ T5980] __sys_bpf+0x5cb/0x920 [ 103.429162][ T5980] ? __pfx___sys_bpf+0x10/0x10 [ 103.429187][ T5980] ? __pfx___se_sys_futex+0x10/0x10 [ 103.429204][ T5980] ? rcu_is_watching+0x15/0xb0 [ 103.429219][ T5980] __x64_sys_bpf+0x7c/0x90 [ 103.429236][ T5980] do_syscall_64+0xe2/0xf80 [ 103.429248][ T5980] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 103.429259][ T5980] ? trace_irq_disable+0x37/0x100 [ 103.429269][ T5980] ? clear_bhb_loop+0x60/0xb0 [ 103.429282][ T5980] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 103.429293][ T5980] RIP: 0033:0x7f7e4919bf79 [ 103.429304][ T5980] 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 [ 103.429313][ T5980] RSP: 002b:00007ffc322198a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 103.429327][ T5980] RAX: ffffffffffffffda RBX: 00007f7e49415fa0 RCX: 00007f7e4919bf79 [ 103.429335][ T5980] RDX: 0000000000000010 RSI: 0000200000000740 RDI: 000000000000000a [ 103.429342][ T5980] RBP: 00007f7e492327e0 R08: 0000000000000000 R09: 0000000000000000 [ 103.429349][ T5980] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 103.429355][ T5980] R13: 00007f7e49415fac R14: 00007f7e49415fa0 R15: 00007f7e49415fa0 [ 103.429371][ T5980]