Warning: Permanently added '[localhost]:3921' (ED25519) to the list of known hosts. 2025/11/06 06:40:41 parsed 1 programs syzkaller login: [ 64.190378][ T5823] cgroup: Unknown subsys name 'net' [ 64.325144][ T5823] cgroup: Unknown subsys name 'cpuset' [ 64.331857][ T5823] cgroup: Unknown subsys name 'rlimit' [ 66.780289][ T5823] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 69.887193][ T5834] 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. [ 69.967167][ T5833] chnl_net:caif_netlink_parms(): no params data found [ 70.199542][ T5833] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.213136][ T5833] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.218657][ T5833] bridge_slave_0: entered allmulticast mode [ 70.224975][ T5833] bridge_slave_0: entered promiscuous mode [ 70.230840][ T5833] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.233559][ T5833] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.236242][ T5833] bridge_slave_1: entered allmulticast mode [ 70.241891][ T5833] bridge_slave_1: entered promiscuous mode [ 70.409152][ T5833] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.442807][ T5833] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.499612][ T5833] team0: Port device team_slave_0 added [ 70.527836][ T5833] team0: Port device team_slave_1 added [ 70.569084][ T5833] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.571244][ T5833] 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. [ 70.578826][ T5833] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.597717][ T5833] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.600243][ T5833] 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. [ 70.610329][ T5833] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.800572][ T5833] hsr_slave_0: entered promiscuous mode [ 70.804136][ T5833] hsr_slave_1: entered promiscuous mode [ 71.087897][ T5833] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 71.111360][ T5833] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 71.124457][ T5203] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 71.129166][ T5833] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 71.135784][ T5203] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 71.139342][ T5203] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 71.142885][ T5833] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 71.155720][ T5203] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 71.162707][ T5203] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 71.479312][ T5833] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.563825][ T5833] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.578404][ T36] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.580904][ T36] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.597557][ T36] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.599823][ T36] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.715287][ T1365] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.717677][ T1365] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.051517][ T85] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.054444][ T85] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.100451][ T5833] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 72.122224][ T85] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.125034][ T85] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.270672][ T5833] veth0_vlan: entered promiscuous mode [ 72.285880][ T5833] veth1_vlan: entered promiscuous mode [ 72.374851][ T5833] veth0_macvtap: entered promiscuous mode [ 72.379518][ T5833] veth1_macvtap: entered promiscuous mode [ 72.390469][ T5833] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 72.404994][ T5833] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 72.435589][ T5859] netdevsim netdevsim2 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.460051][ T5859] netdevsim netdevsim2 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.469714][ T5859] netdevsim netdevsim2 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.577853][ T5859] netdevsim netdevsim2 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.119920][ T12] netdevsim netdevsim2 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2025/11/06 06:40:52 executed programs: 0 [ 73.330468][ T56] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 73.336129][ T5875] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 73.339753][ T5875] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 73.346350][ T5875] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 73.346430][ T5942] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 73.353155][ T5942] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 73.357052][ T5942] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 73.359243][ T5942] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 73.359993][ T5944] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 73.367032][ T5944] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 73.386593][ T5944] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 73.395008][ T56] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 73.406038][ T56] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 73.409777][ T56] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 73.413513][ T56] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 73.850457][ T5938] chnl_net:caif_netlink_parms(): no params data found [ 73.858500][ T5936] chnl_net:caif_netlink_parms(): no params data found [ 73.926749][ T5939] chnl_net:caif_netlink_parms(): no params data found [ 73.977137][ T12] netdevsim netdevsim2 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.082328][ T5936] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.085057][ T5936] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.087766][ T5936] bridge_slave_0: entered allmulticast mode [ 74.091582][ T5936] bridge_slave_0: entered promiscuous mode [ 74.095501][ T5938] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.097727][ T5938] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.099846][ T5938] bridge_slave_0: entered allmulticast mode [ 74.103569][ T5938] bridge_slave_0: entered promiscuous mode [ 74.107074][ T5938] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.109460][ T5938] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.112321][ T5938] bridge_slave_1: entered allmulticast mode [ 74.115290][ T5938] bridge_slave_1: entered promiscuous mode [ 74.138752][ T5936] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.141923][ T5936] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.144595][ T5936] bridge_slave_1: entered allmulticast mode [ 74.148234][ T5936] bridge_slave_1: entered promiscuous mode [ 74.187045][ T5939] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.189244][ T5939] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.192931][ T5939] bridge_slave_0: entered allmulticast mode [ 74.196144][ T5939] bridge_slave_0: entered promiscuous mode [ 74.200379][ T5939] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.203085][ T5939] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.205205][ T5939] bridge_slave_1: entered allmulticast mode [ 74.207799][ T5939] bridge_slave_1: entered promiscuous mode [ 74.225836][ T5938] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.233750][ T5936] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.252950][ T5938] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.257905][ T5936] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.287633][ T5939] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.319130][ T5939] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.325226][ T5936] team0: Port device team_slave_0 added [ 74.346523][ T5938] team0: Port device team_slave_0 added [ 74.351589][ T5938] team0: Port device team_slave_1 added [ 74.367906][ T5936] team0: Port device team_slave_1 added [ 74.407167][ T5939] team0: Port device team_slave_0 added [ 74.438688][ T5939] team0: Port device team_slave_1 added [ 74.466008][ T5936] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.468658][ T5936] 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. [ 74.478810][ T5936] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.485538][ T5936] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.487934][ T5936] 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. [ 74.497438][ T5936] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.503332][ T5938] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.505975][ T5938] 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. [ 74.516482][ T5938] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.522169][ T5939] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.524224][ T5939] 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. [ 74.532744][ T5939] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.543541][ T5938] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.545954][ T5938] 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. [ 74.555749][ T5938] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.561631][ T5939] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.564098][ T5939] 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. [ 74.572292][ T5939] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.616016][ T5936] hsr_slave_0: entered promiscuous mode [ 74.619172][ T5936] hsr_slave_1: entered promiscuous mode [ 74.623008][ T5936] debugfs: 'hsr0' already exists in 'hsr' [ 74.625179][ T5936] Cannot create hsr debugfs directory [ 74.702534][ T5939] hsr_slave_0: entered promiscuous mode [ 74.705696][ T5939] hsr_slave_1: entered promiscuous mode [ 74.708415][ T5939] debugfs: 'hsr0' already exists in 'hsr' [ 74.710407][ T5939] Cannot create hsr debugfs directory [ 74.720258][ T5938] hsr_slave_0: entered promiscuous mode [ 74.724045][ T5938] hsr_slave_1: entered promiscuous mode [ 74.726948][ T5938] debugfs: 'hsr0' already exists in 'hsr' [ 74.729113][ T5938] Cannot create hsr debugfs directory [ 75.061253][ T5936] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.067505][ T5936] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.089063][ T5936] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.108300][ T12] netdevsim netdevsim2 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.118294][ T5936] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.204644][ T5936] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.218618][ T5936] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.224930][ T1100] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.227138][ T1100] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.243938][ T12] netdevsim netdevsim2 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 75.257757][ T2274] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.260311][ T2274] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.305836][ T5936] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 75.447689][ T12] bridge_slave_1: left allmulticast mode [ 75.450137][ T12] bridge_slave_1: left promiscuous mode [ 75.453967][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.464444][ T56] Bluetooth: hci2: command tx timeout [ 75.465207][ T5941] Bluetooth: hci0: command tx timeout [ 75.467047][ T5944] Bluetooth: hci1: command tx timeout [ 75.473647][ T12] bridge_slave_0: left allmulticast mode [ 75.475721][ T12] bridge_slave_0: left promiscuous mode [ 75.477940][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.811265][ T12] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 75.817080][ T12] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 75.821216][ T12] bond0 (unregistering): Released all slaves [ 75.903869][ T5936] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.945111][ T5936] veth0_vlan: entered promiscuous mode [ 75.950255][ T5936] veth1_vlan: entered promiscuous mode [ 75.995553][ T12] hsr_slave_0: left promiscuous mode [ 75.997648][ T12] hsr_slave_1: left promiscuous mode [ 75.999867][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 76.003238][ T12] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 76.018242][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 76.025079][ T12] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 76.045387][ T12] veth1_macvtap: left promiscuous mode [ 76.047087][ T12] veth0_macvtap: left promiscuous mode [ 76.048688][ T12] veth1_vlan: left promiscuous mode [ 76.051749][ T12] veth0_vlan: left promiscuous mode [ 76.376868][ T12] team0 (unregistering): Port device team_slave_1 removed [ 76.399748][ T12] team0 (unregistering): Port device team_slave_0 removed [ 76.838047][ T5936] veth0_macvtap: entered promiscuous mode [ 76.845150][ T5936] veth1_macvtap: entered promiscuous mode [ 76.872090][ T5936] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.913704][ T5936] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.943627][ T13] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.965953][ T13] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.991243][ T5859] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.008011][ T5859] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.014564][ T5939] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 77.045577][ T5939] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 77.077619][ T5939] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 77.106339][ T5939] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 77.168274][ T69] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.178951][ T69] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.218807][ T5938] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 77.243290][ T5938] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 77.248560][ T5938] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 77.336536][ T5938] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 77.347228][ T36] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.350013][ T36] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.445505][ T5939] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.502281][ T5939] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.502760][ T6011] [ 77.505610][ T6011] ====================================================== [ 77.508226][ T6011] WARNING: possible circular locking dependency detected [ 77.510917][ T6011] syzkaller #0 Not tainted [ 77.512848][ T6011] ------------------------------------------------------ [ 77.512937][ T2274] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.516234][ T6011] syz.0.17/6011 is trying to acquire lock: [ 77.516244][ T6011] ffff88810943c420 [ 77.518918][ T2274] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.520393][ T6011] (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 [ 77.526373][ T6011] [ 77.526373][ T6011] but task is already holding lock: [ 77.528437][ T6011] ffff888169f40940 (&type->i_mutex_dir_key#5/1){+.+.}-{4:4}, at: start_creating+0xbe/0x100 [ 77.531210][ T6011] [ 77.531210][ T6011] which lock already depends on the new lock. [ 77.531210][ T6011] [ 77.533990][ T6011] [ 77.533990][ T6011] the existing dependency chain (in reverse order) is: [ 77.534985][ T2274] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.536504][ T6011] [ 77.536504][ T6011] -> #1 (&type->i_mutex_dir_key#5/1){+.+.}-{4:4}: [ 77.539104][ T2274] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.541582][ T6011] reacquire_held_locks+0x127/0x1d0 [ 77.541600][ T6011] lock_release+0x1b4/0x3e0 [ 77.541606][ T6011] up_write+0x2d/0x420 [ 77.541615][ T6011] vfs_mkdir+0x111/0x570 [ 77.541625][ T6011] do_mkdirat+0x247/0x5e0 [ 77.541633][ T6011] __x64_sys_mkdir+0x6c/0x80 [ 77.541641][ T6011] do_syscall_64+0xfa/0xfa0 [ 77.541651][ T6011] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.541658][ T6011] [ 77.541658][ T6011] -> #0 (sb_writers#12){.+.+}-{0:0}: [ 77.560218][ T6011] validate_chain+0xb9b/0x2140 [ 77.561932][ T6011] __lock_acquire+0xab9/0xd20 [ 77.563620][ T6011] lock_acquire+0x120/0x360 [ 77.565352][ T6011] sb_start_write+0x4d/0x1c0 [ 77.566826][ T6011] mnt_want_write+0x41/0x90 [ 77.567971][ T5939] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 77.568541][ T6011] filename_create+0x14f/0x360 [ 77.572747][ T5939] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 77.573854][ T6011] do_mkdirat+0x32c/0x5e0 [ 77.579509][ T6011] __x64_sys_mkdir+0x6c/0x80 [ 77.581101][ T6011] do_syscall_64+0xfa/0xfa0 [ 77.582811][ T6011] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.584952][ T6011] [ 77.584952][ T6011] other info that might help us debug this: [ 77.584952][ T6011] [ 77.588395][ T6011] Possible unsafe locking scenario: [ 77.588395][ T6011] [ 77.590940][ T6011] CPU0 CPU1 [ 77.592688][ T6011] ---- ---- [ 77.594247][ T6011] lock(&type->i_mutex_dir_key#5/1); [ 77.596009][ T6011] lock(sb_writers#12); [ 77.597940][ T6011] lock(&type->i_mutex_dir_key#5/1); [ 77.600128][ T6011] rlock(sb_writers#12); [ 77.601581][ T6011] [ 77.601581][ T6011] *** DEADLOCK *** [ 77.601581][ T6011] [ 77.604322][ T6011] 1 lock held by syz.0.17/6011: [ 77.605925][ T6011] #0: ffff888169f40940 (&type->i_mutex_dir_key#5/1){+.+.}-{4:4}, at: start_creating+0xbe/0x100 [ 77.609298][ T6011] [ 77.609298][ T6011] stack backtrace: [ 77.611190][ T6011] CPU: 1 UID: 0 PID: 6011 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) [ 77.611204][ T6011] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 77.611211][ T6011] Call Trace: [ 77.611216][ T6011] [ 77.611221][ T6011] dump_stack_lvl+0x189/0x250 [ 77.611239][ T6011] ? __pfx_dump_stack_lvl+0x10/0x10 [ 77.611252][ T6011] ? __pfx__printk+0x10/0x10 [ 77.611260][ T6011] ? stack_trace_save+0x9c/0xe0 [ 77.611275][ T6011] print_circular_bug+0x2ee/0x310 [ 77.611288][ T6011] check_noncircular+0x134/0x160 [ 77.611304][ T6011] validate_chain+0xb9b/0x2140 [ 77.611316][ T6011] ? __asan_memcpy+0x40/0x70 [ 77.611329][ T6011] ? __filename_parentat+0x484/0x670 [ 77.611342][ T6011] __lock_acquire+0xab9/0xd20 [ 77.611352][ T6011] ? mnt_want_write+0x41/0x90 [ 77.611363][ T6011] lock_acquire+0x120/0x360 [ 77.611372][ T6011] ? mnt_want_write+0x41/0x90 [ 77.611386][ T6011] sb_start_write+0x4d/0x1c0 [ 77.611397][ T6011] ? mnt_want_write+0x41/0x90 [ 77.611408][ T6011] mnt_want_write+0x41/0x90 [ 77.611419][ T6011] filename_create+0x14f/0x360 [ 77.611432][ T6011] ? dput+0x37/0x2b0 [ 77.611441][ T6011] ? __pfx_filename_create+0x10/0x10 [ 77.611454][ T6011] ? dput+0x37/0x2b0 [ 77.611465][ T6011] ? dput+0x37/0x2b0 [ 77.611477][ T6011] do_mkdirat+0x32c/0x5e0 [ 77.611495][ T6011] ? __pfx_do_mkdirat+0x10/0x10 [ 77.611508][ T6011] ? getname_flags+0x1e5/0x540 [ 77.611519][ T6011] __x64_sys_mkdir+0x6c/0x80 [ 77.611534][ T6011] do_syscall_64+0xfa/0xfa0 [ 77.611548][ T6011] ? lockdep_hardirqs_on+0x9c/0x150 [ 77.611561][ T6011] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.611571][ T6011] ? exc_page_fault+0xab/0x100 [ 77.611583][ T6011] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.611592][ T6011] RIP: 0033:0x7fdc9a98efc9 [ 77.611613][ T6011] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 [ 77.611622][ T6011] RSP: 002b:00007fdc9b79b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 77.611633][ T6011] RAX: ffffffffffffffda RBX: 00007fdc9abe5fa0 RCX: 00007fdc9a98efc9 [ 77.611640][ T6011] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00002000000008c0 [ 77.611646][ T6011] RBP: 00007fdc9aa11f91 R08: 0000000000000000 R09: 0000000000000000 [ 77.611652][ T6011] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 77.611657][ T6011] R13: 00007fdc9abe6038 R14: 00007fdc9abe5fa0 R15: 00007ffe4d481c38 [ 77.611668][ T6011] [ 77.613592][ T5938] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.616282][ T5944] Bluetooth: hci2: command tx timeout [ 77.619930][ T5941] Bluetooth: hci1: command tx timeout [ 77.620359][ T56] Bluetooth: hci0: command tx timeout [ 77.716169][ T5938] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.728270][ T2274] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.730418][ T2274] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.744674][ T5939] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.752690][ T53] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.755179][ T53] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.804623][ T5939] veth0_vlan: entered promiscuous mode [ 77.812846][ T5939] veth1_vlan: entered promiscuous mode [ 77.830529][ T5939] veth0_macvtap: entered promiscuous mode [ 77.836015][ T5939] veth1_macvtap: entered promiscuous mode [ 77.846636][ T5939] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.854846][ T5939] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 77.864597][ T12] netdevsim netdevsim2 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.869651][ T12] netdevsim netdevsim2 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.881427][ T12] netdevsim netdevsim2 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.884598][ T12] netdevsim netdevsim2 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.913539][ T5939] ieee80211 phy7: Selected rate control algorithm 'minstrel_ht' [ 77.927797][ T1100] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.930540][ T1100] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.933864][ T5938] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.939258][ T5939] ieee80211 phy8: Selected rate control algorithm 'minstrel_ht' [ 77.952353][ T69] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.955040][ T69] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.977514][ T5938] veth0_vlan: entered promiscuous mode [ 77.989906][ T5938] veth1_vlan: entered promiscuous mode [ 78.006823][ T5938] veth0_macvtap: entered promiscuous mode [ 78.010372][ T5938] veth1_macvtap: entered promiscuous mode [ 78.018876][ T5938] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 78.025763][ T5938] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 78.034990][ T13] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.038294][ T13] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.042464][ T13] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.045965][ T13] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.065805][ T5938] ieee80211 phy9: Selected rate control algorithm 'minstrel_ht' [ 78.078552][ T1100] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.081538][ T1100] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.083178][ T5938] ieee80211 phy10: Selected rate control algorithm 'minstrel_ht' [ 78.098347][ T53] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.101979][ T53] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.620853][ T56] Bluetooth: hci2: command tx timeout [ 79.701185][ T56] Bluetooth: hci0: command tx timeout [ 79.701340][ T5941] Bluetooth: hci1: command tx timeout [ 81.700945][ T5941] Bluetooth: hci2: command tx timeout [ 81.780952][ T5941] Bluetooth: hci0: command tx timeout [ 81.790884][ T5941] Bluetooth: hci1: command tx timeout [ 87.063967][ T978] cfg80211: failed to load regulatory.db VM DIAGNOSIS: 06:40:56 Registers: info registers vcpu 0 CPU#0 RAX=ffffffff81a0176f RBX=ffffffff81a0172e RCX=ffff88810d133a00 RDX=0000000000000000 RSI=ffffffff8bbf0740 RDI=ffffffff8bbf0700 RBP=ffffc9000b88f490 RSP=ffffc9000b88f380 R8 =0000000000000001 R9 =0000000000000000 R10=dffffc0000000000 R11=fffffbfff1be62a9 R12=0000000000000000 R13=0000000000000036 R14=0000000000000200 R15=1ffff92001711e74 RIP=ffffffff81a0176a RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 ffffffff 00c00000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 0000000000000000 ffffffff 00c00000 GS =0000 ffff88818eb3b000 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=0000200000001000 CR3=0000000113c36000 CR4=000006f0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=0000000000000000 0000000000000000 XMM01=0000000000000000 0000000000000000 XMM02=000000ff00000000 0000000000000000 XMM03=0000000000000000 0000000000000000 XMM04=0000000000000000 0000000000000000 XMM05=0000000000000000 0000000000000000 XMM06=0000000000000000 0000000000000000 XMM07=0000000000000000 0000000000000000 XMM08=0000000000000000 0000000000000000 XMM09=0000000000000000 0000000000000000 XMM10=0000000000000000 0000000000000000 XMM11=0000000000000000 0000000000000000 XMM12=0000000000000000 0000000000000000 XMM13=0000000000000000 0000000000000000 XMM14=0000000000000000 0000000000000000 XMM15=0000000000000000 0000000000000000 info registers vcpu 1 CPU#1 RAX=000000000000002d RBX=000000000000002d RCX=0000000000000000 RDX=00000000000003f8 RSI=0000000000000000 RDI=0000000000000020 RBP=00000000000003f8 RSP=ffffc9000242f370 R8 =ffff888109958237 R9 =1ffff1102132b046 R10=dffffc0000000000 R11=ffffffff8514d960 R12=dffffc0000000000 R13=ffffffff997d991b R14=ffffffff99aecf20 R15=0000000000000000 RIP=ffffffff8514d9dc RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 ffffffff 00c00000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 00007fdc9b79b6c0 ffffffff 00c00000 GS =0000 ffff8882a9f3b000 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007fdc9b79afc8 CR3=0000000113d3e000 CR4=000006f0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=0000000000000000 0000000000000000 XMM01=0000000000000000 0000000000000000 XMM02=00007fdc9abb7498 00007fdc9abb7470 XMM03=00007fdc9abb74a8 00007fdc9abb74a0 XMM04=00007fdc9b71d100 00007fdc9abb7460 XMM05=00007fdc9abb7478 00007fdc9abb74c0 XMM06=00007fdc9abb74b8 00007fdc9abb74b0 XMM07=00007fdc9abb74a8 00007fdc9abb74a0 XMM08=0000000000000000 00524f5252450040 XMM09=0000000000000000 00007fdc9aa1315a XMM10=0000000000000000 0000000000000000 XMM11=0000000000000000 0000000000000000 XMM12=0000000000000000 0000000000000000 XMM13=0000000000000000 0000000000000000 XMM14=0000000000000000 0000000000000000 XMM15=0000000000000000 0000000000000000