syzkaller login: [ 91.805777][ T9] cfg80211: failed to load regulatory.db
Warning: Permanently added '[localhost]:63604' (ED25519) to the list of known hosts.
2025/12/23 23:47:09 parsed 1 programs
[ 241.470450][ T5359] cgroup: Unknown subsys name 'net'
[ 241.538624][ T5359] cgroup: Unknown subsys name 'cpuset'
[ 241.544311][ T5359] cgroup: Unknown subsys name 'rlimit'
Setting up swapspace version 1, size = 127995904 bytes
[ 243.256562][ T5359] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 247.622634][ T5369] 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.
[ 248.552161][ T5385] chnl_net:caif_netlink_parms(): no params data found
[ 248.646125][ T5385] bridge0: port 1(bridge_slave_0) entered blocking state
[ 248.649668][ T5385] bridge0: port 1(bridge_slave_0) entered disabled state
[ 248.653012][ T5385] bridge_slave_0: entered allmulticast mode
[ 248.657309][ T5385] bridge_slave_0: entered promiscuous mode
[ 248.663133][ T5385] bridge0: port 2(bridge_slave_1) entered blocking state
[ 248.666925][ T5385] bridge0: port 2(bridge_slave_1) entered disabled state
[ 248.670153][ T5385] bridge_slave_1: entered allmulticast mode
[ 248.674069][ T5385] bridge_slave_1: entered promiscuous mode
[ 248.699438][ T5385] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 248.707733][ T5385] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 248.744668][ T5385] team0: Port device team_slave_0 added
[ 248.757396][ T5385] team0: Port device team_slave_1 added
[ 248.802801][ T5385] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 248.815305][ T5385] 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.
[ 248.837338][ T5385] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 248.855826][ T5385] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 248.858485][ T5385] 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.
[ 248.885806][ T5385] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 248.956382][ T5385] hsr_slave_0: entered promiscuous mode
[ 248.960257][ T5385] hsr_slave_1: entered promiscuous mode
[ 249.197226][ T5385] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 249.218179][ T5385] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 249.224463][ T5385] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 249.234733][ T5385] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 249.263266][ T5385] bridge0: port 2(bridge_slave_1) entered blocking state
[ 249.266582][ T5385] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 249.270800][ T5385] bridge0: port 1(bridge_slave_0) entered blocking state
[ 249.274001][ T5385] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 249.359775][ T5385] 8021q: adding VLAN 0 to HW filter on device bond0
[ 249.382088][ T1129] bridge0: port 1(bridge_slave_0) entered disabled state
[ 249.396281][ T1129] bridge0: port 2(bridge_slave_1) entered disabled state
[ 249.410537][ T5385] 8021q: adding VLAN 0 to HW filter on device team0
[ 249.432300][ T1077] bridge0: port 1(bridge_slave_0) entered blocking state
[ 249.435540][ T1077] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 249.451326][ T4102] bridge0: port 2(bridge_slave_1) entered blocking state
[ 249.454475][ T4102] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 249.802242][ T5385] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 249.860169][ T5385] veth0_vlan: entered promiscuous mode
[ 249.886264][ T5385] veth1_vlan: entered promiscuous mode
[ 249.929239][ T5385] veth0_macvtap: entered promiscuous mode
[ 249.946649][ T5385] veth1_macvtap: entered promiscuous mode
[ 249.964273][ T5385] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 249.977719][ T5385] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 249.990414][ T4102] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 249.994205][ T4102] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 250.013689][ T4102] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 250.029529][ T4102] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 250.158761][ T1129] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 250.286880][ T1129] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 250.413498][ T1129] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 250.557322][ T1129] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 252.844274][ T1129] bridge_slave_1: left allmulticast mode
[ 252.857649][ T1129] bridge_slave_1: left promiscuous mode
[ 252.860609][ T1129] bridge0: port 2(bridge_slave_1) entered disabled state
[ 252.868237][ T1129] bridge_slave_0: left allmulticast mode
[ 252.870643][ T1129] bridge_slave_0: left promiscuous mode
[ 252.873106][ T1129] bridge0: port 1(bridge_slave_0) entered disabled state
[ 253.136243][ T1129] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 253.142691][ T1129] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 253.148961][ T1129] bond0 (unregistering): Released all slaves
[ 253.217391][ T1129] hsr_slave_0: left promiscuous mode
[ 253.235195][ T1129] hsr_slave_1: left promiscuous mode
[ 253.238232][ T1129] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 253.241386][ T1129] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 253.258301][ T1129] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 253.261887][ T1129] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 253.290859][ T1129] veth1_macvtap: left promiscuous mode
[ 253.293991][ T1129] veth0_macvtap: left promiscuous mode
[ 253.308061][ T1129] veth1_vlan: left promiscuous mode
[ 253.310583][ T1129] veth0_vlan: left promiscuous mode
[ 253.808237][ T1129] team0 (unregistering): Port device team_slave_1 removed
[ 253.831733][ T1129] team0 (unregistering): Port device team_slave_0 removed
[ 254.085913][ T3487] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 254.089298][ T3487] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 254.224097][ T2675] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 254.239369][ T2675] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 256.823937][ T4683] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 256.828166][ T4683] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 256.831919][ T4683] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 256.838017][ T4683] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 256.841355][ T4683] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
2025/12/23 23:47:27 executed programs: 0
[ 257.694151][ T48] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 257.699419][ T48] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 257.702974][ T48] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 257.707030][ T48] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 257.710880][ T48] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 257.898485][ T5502] chnl_net:caif_netlink_parms(): no params data found
[ 257.965780][ T5502] bridge0: port 1(bridge_slave_0) entered blocking state
[ 257.969060][ T5502] bridge0: port 1(bridge_slave_0) entered disabled state
[ 257.972232][ T5502] bridge_slave_0: entered allmulticast mode
[ 257.976805][ T5502] bridge_slave_0: entered promiscuous mode
[ 257.982006][ T5502] bridge0: port 2(bridge_slave_1) entered blocking state
[ 257.985651][ T5502] bridge0: port 2(bridge_slave_1) entered disabled state
[ 257.988833][ T5502] bridge_slave_1: entered allmulticast mode
[ 257.992512][ T5502] bridge_slave_1: entered promiscuous mode
[ 258.019982][ T5502] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 258.026692][ T5502] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 258.053831][ T5502] team0: Port device team_slave_0 added
[ 258.058575][ T5502] team0: Port device team_slave_1 added
[ 258.082627][ T5502] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 258.086004][ T5502] 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.
[ 258.097683][ T5502] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 258.104110][ T5502] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 258.107744][ T5502] 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.
[ 258.119436][ T5502] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 258.162305][ T5502] hsr_slave_0: entered promiscuous mode
[ 258.165997][ T5502] hsr_slave_1: entered promiscuous mode
[ 258.679694][ T5502] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 258.698534][ T5502] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 258.715900][ T5502] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 258.721779][ T5502] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 258.776425][ T5502] bridge0: port 2(bridge_slave_1) entered blocking state
[ 258.779556][ T5502] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 258.782901][ T5502] bridge0: port 1(bridge_slave_0) entered blocking state
[ 258.786020][ T5502] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 258.891842][ T5502] 8021q: adding VLAN 0 to HW filter on device bond0
[ 258.922342][ T2675] bridge0: port 1(bridge_slave_0) entered disabled state
[ 258.927529][ T2675] bridge0: port 2(bridge_slave_1) entered disabled state
[ 258.940802][ T5502] 8021q: adding VLAN 0 to HW filter on device team0
[ 258.959893][ T3487] bridge0: port 1(bridge_slave_0) entered blocking state
[ 258.963019][ T3487] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 258.997469][ T3487] bridge0: port 2(bridge_slave_1) entered blocking state
[ 259.000603][ T3487] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 259.058226][ T5502] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network
[ 259.322036][ T5502] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 259.402163][ T5502] veth0_vlan: entered promiscuous mode
[ 259.421496][ T5502] veth1_vlan: entered promiscuous mode
[ 259.463835][ T5502] veth0_macvtap: entered promiscuous mode
[ 259.484300][ T5502] veth1_macvtap: entered promiscuous mode
[ 259.513641][ T5502] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 259.537320][ T5502] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 259.553491][ T2675] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 259.570531][ T2675] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 259.590676][ T2675] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 259.594599][ T2675] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 259.681271][ T1077] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 259.684803][ T1077] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 259.748060][ T1077] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 259.755731][ T1077] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 259.809692][ T48] Bluetooth: hci0: command tx timeout
[ 260.374181][ T5546] loop0: detected capacity change from 0 to 32768
[ 261.875237][ T48] Bluetooth: hci0: command tx timeout
[ 263.956381][ T48] Bluetooth: hci0: command tx timeout
[ 265.877241][ T1312] ieee802154 phy0 wpan0: encryption failed: -22
[ 265.880021][ T1312] ieee802154 phy1 wpan1: encryption failed: -22
[ 266.035253][ T48] Bluetooth: hci0: command tx timeout
[ 274.917776][ T4683] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1
[ 274.927295][ T4683] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9
[ 274.931820][ T4683] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9
[ 274.936797][ T4683] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4
[ 274.940340][ T4683] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2
[ 275.592620][ T5563] chnl_net:caif_netlink_parms(): no params data found
[ 275.777430][ T5563] bridge0: port 1(bridge_slave_0) entered blocking state
[ 275.780702][ T5563] bridge0: port 1(bridge_slave_0) entered disabled state
[ 275.791634][ T5563] bridge_slave_0: entered allmulticast mode
[ 275.805930][ T5563] bridge_slave_0: entered promiscuous mode
[ 275.811433][ T5563] bridge0: port 2(bridge_slave_1) entered blocking state
[ 275.814409][ T5563] bridge0: port 2(bridge_slave_1) entered disabled state
[ 275.825534][ T5563] bridge_slave_1: entered allmulticast mode
[ 275.829145][ T5563] bridge_slave_1: entered promiscuous mode
[ 275.872981][ T5563] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 275.895982][ T5563] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 275.940883][ T5563] team0: Port device team_slave_0 added
[ 275.956855][ T5563] team0: Port device team_slave_1 added
[ 275.998476][ T5563] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 276.001581][ T5563] 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.
[ 276.035094][ T5563] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 276.040979][ T5563] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 276.043933][ T5563] 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.
[ 276.075084][ T5563] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 276.146435][ T5563] hsr_slave_0: entered promiscuous mode
[ 276.150236][ T5563] hsr_slave_1: entered promiscuous mode
[ 276.155531][ T5563] debugfs: 'hsr0' already exists in 'hsr'
[ 276.158130][ T5563] Cannot create hsr debugfs directory
[ 276.457353][ T5563] netdevsim netdevsim1 netdevsim0: renamed from eth0
[ 276.466778][ T5563] netdevsim netdevsim1 netdevsim1: renamed from eth1
[ 276.486797][ T5563] netdevsim netdevsim1 netdevsim2: renamed from eth2
[ 276.493391][ T5563] netdevsim netdevsim1 netdevsim3: renamed from eth3
[ 276.542012][ T5563] bridge0: port 2(bridge_slave_1) entered blocking state
[ 276.545177][ T5563] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 276.548536][ T5563] bridge0: port 1(bridge_slave_0) entered blocking state
[ 276.551837][ T5563] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 276.596440][ T1077] bridge0: port 1(bridge_slave_0) entered disabled state
[ 276.600958][ T1077] bridge0: port 2(bridge_slave_1) entered disabled state
[ 276.669159][ T5563] 8021q: adding VLAN 0 to HW filter on device bond0
[ 276.698062][ T5563] 8021q: adding VLAN 0 to HW filter on device team0
[ 276.722315][ T1129] bridge0: port 1(bridge_slave_0) entered blocking state
[ 276.725347][ T1129] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 276.739221][ T4102] bridge0: port 2(bridge_slave_1) entered blocking state
[ 276.742298][ T4102] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 276.995504][ T4683] Bluetooth: hci1: command tx timeout
[ 277.052632][ T5563] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 277.126590][ T5563] veth0_vlan: entered promiscuous mode
[ 277.133812][ T5563] veth1_vlan: entered promiscuous mode
[ 277.181948][ T5563] veth0_macvtap: entered promiscuous mode
[ 277.198578][ T5563] veth1_macvtap: entered promiscuous mode
[ 277.221617][ T5563] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 277.238779][ T5563] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 277.256431][ T1129] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 277.283898][ T1129] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 277.300609][ T1129] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 277.321568][ T4102] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 277.414177][ T4102] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 277.418739][ T4102] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 277.478622][ T1077] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 277.481861][ T1077] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
2025/12/23 23:47:47 executed programs: 3
[ 279.076816][ T4683] Bluetooth: hci1: command tx timeout
[ 281.156875][ T4683] Bluetooth: hci1: command tx timeout
2025/12/23 23:47:53 executed programs: 14
[ 283.235584][ T4683] Bluetooth: hci1: command tx timeout
2025/12/23 23:47:58 executed programs: 25
2025/12/23 23:48:03 executed programs: 36
2025/12/23 23:48:08 executed programs: 47
2025/12/23 23:48:13 executed programs: 58
2025/12/23 23:48:19 executed programs: 69
2025/12/23 23:48:24 executed programs: 80
2025/12/23 23:48:29 executed programs: 91
2025/12/23 23:48:34 executed programs: 103
[ 327.318965][ T1312] ieee802154 phy0 wpan0: encryption failed: -22
[ 327.321808][ T1312] ieee802154 phy1 wpan1: encryption failed: -22
2025/12/23 23:48:40 executed programs: 114
2025/12/23 23:48:45 executed programs: 125
2025/12/23 23:48:50 executed programs: 136
2025/12/23 23:48:55 executed programs: 148
2025/12/23 23:49:00 executed programs: 159
2025/12/23 23:49:05 executed programs: 170
2025/12/23 23:49:11 executed programs: 182
2025/12/23 23:49:16 executed programs: 193
2025/12/23 23:49:21 executed programs: 204
2025/12/23 23:49:26 executed programs: 216
[ 380.601554][ T48] Bluetooth: hci0: command 0x0406 tx timeout
2025/12/23 23:49:32 executed programs: 227
2025/12/23 23:49:37 executed programs: 238
[ 388.763647][ T1312] ieee802154 phy0 wpan0: encryption failed: -22
[ 388.767538][ T1312] ieee802154 phy1 wpan1: encryption failed: -22
2025/12/23 23:49:42 executed programs: 249
2025/12/23 23:49:47 executed programs: 261
[ 401.076745][ T4683] Bluetooth: hci1: command 0x0406 tx timeout
2025/12/23 23:49:53 executed programs: 273
2025/12/23 23:49:58 executed programs: 284
2025/12/23 23:50:03 executed programs: 295
2025/12/23 23:50:08 executed programs: 307
2025/12/23 23:50:13 executed programs: 319
[ 425.885439][ T27] INFO: task kworker/u4:13:2675 blocked for more than 143 seconds.
[ 425.888804][ T27] Not tainted syzkaller #0
[ 425.890959][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 425.894670][ T27] task:kworker/u4:13 state:D stack:24504 pid:2675 tgid:2675 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 425.925121][ T27] Workqueue: writeback wb_workfn (flush-7:0)
[ 425.927928][ T27] Call Trace:
[ 425.929527][ T27]
[ 425.930886][ T27] __schedule+0x149b/0x4fd0
[ 425.933779][ T27] ? blk_mq_flush_plug_list+0x48b/0x550
[ 425.957404][ T27] ? __pfx_blk_mq_flush_plug_list+0x10/0x10
[ 425.959936][ T27] ? __blk_flush_plug+0x3fc/0x4b0
[ 425.962157][ T27] ? __pfx___schedule+0x10/0x10
[ 425.964278][ T27] ? schedule+0x91/0x360
[ 425.981728][ T27] schedule+0x165/0x360
[ 425.983640][ T27] schedule_preempt_disabled+0x13/0x30
[ 425.999127][ T27] __mutex_lock+0x7e6/0x1350
[ 426.001227][ T27] ? __mutex_lock+0x5bb/0x1350
[ 426.025136][ T27] ? jfs_commit_inode+0x1ca/0x530
[ 426.027478][ T27] ? __pfx___mutex_lock+0x10/0x10
[ 426.029649][ T27] ? __lock_acquire+0x6b6/0x2cf0
[ 426.031899][ T27] jfs_commit_inode+0x1ca/0x530
[ 426.034016][ T27] ? __pfx_jfs_commit_inode+0x10/0x10
[ 426.055122][ T27] jfs_write_inode+0x145/0x220
[ 426.057202][ T27] __writeback_single_inode+0x7e1/0x1240
[ 426.059392][ T27] writeback_sb_inodes+0x93a/0x1870
[ 426.061814][ T27] ? __pfx_writeback_sb_inodes+0x10/0x10
[ 426.064568][ T27] ? __pfx_down_read_trylock+0x10/0x10
[ 426.091486][ T27] ? __pfx___up_read+0x10/0x10
[ 426.093618][ T27] __writeback_inodes_wb+0x111/0x240
[ 426.096450][ T27] wb_writeback+0x43f/0xaa0
[ 426.098475][ T27] ? queue_io+0x261/0x450
[ 426.100356][ T27] ? __pfx_wb_writeback+0x10/0x10
[ 426.102669][ T27] ? do_raw_spin_lock+0x121/0x290
[ 426.126553][ T27] wb_workfn+0x8ee/0xed0
[ 426.128408][ T27] ? __pfx_wb_workfn+0x10/0x10
[ 426.130578][ T27] ? finish_task_switch+0x162/0x940
[ 426.132893][ T27] ? do_raw_spin_lock+0x121/0x290
[ 426.155118][ T27] ? lock_acquire+0x107/0x340
[ 426.157300][ T27] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 426.169478][ T27] ? process_scheduled_works+0x9ef/0x1770
[ 426.172041][ T27] ? process_scheduled_works+0x9ef/0x1770
[ 426.174533][ T27] ? process_scheduled_works+0x9ef/0x1770
[ 426.195173][ T27] process_scheduled_works+0xad1/0x1770
[ 426.197654][ T27] ? __pfx_process_scheduled_works+0x10/0x10
[ 426.200217][ T27] ? do_raw_spin_lock+0x121/0x290
[ 426.215106][ T27] worker_thread+0x8a0/0xda0
[ 426.217171][ T27] ? __kthread_parkme+0x7b/0x200
[ 426.219375][ T27] kthread+0x711/0x8a0
[ 426.221160][ T27] ? __pfx_worker_thread+0x10/0x10
[ 426.223362][ T27] ? __pfx_kthread+0x10/0x10
[ 426.255119][ T27] ? _raw_spin_unlock_irq+0x23/0x50
[ 426.257342][ T27] ? __pfx_kthread+0x10/0x10
[ 426.259318][ T27] ret_from_fork+0x510/0xa50
[ 426.261260][ T27] ? __pfx_ret_from_fork+0x10/0x10
[ 426.263486][ T27] ? __switch_to+0xc9e/0x1480
[ 426.295252][ T27] ? __pfx_kthread+0x10/0x10
[ 426.297349][ T27] ret_from_fork_asm+0x1a/0x30
[ 426.299485][ T27]
[ 426.301100][ T27]
[ 426.301100][ T27] Showing all locks held in the system:
[ 426.304471][ T27] 1 lock held by khungtaskd/27:
[ 426.327005][ T27] #0: ffffffff8df41aa0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[ 426.331507][ T27] 4 locks held by kworker/u4:13/2675:
[ 426.333888][ T27] #0: ffff888030e98148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x1770
[ 426.365136][ T27] #1: ffffc9000f567bc0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x1770
[ 426.370559][ T27] #2: ffff88801137c0e0 (&type->s_umount_key#56){.+.+}-{4:4}, at: super_trylock_shared+0x20/0xf0
[ 426.395503][ T27] #3: ffff88801f692f90 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: jfs_commit_inode+0x1ca/0x530
[ 426.405115][ T27] 2 locks held by getty/5123:
[ 426.407087][ T27] #0: ffff8880432240a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[ 426.438431][ T27] #1: ffffc900010582f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x449/0x1460
[ 426.442892][ T27] 2 locks held by kworker/0:4/5125:
[ 426.445796][ T27] #0: ffff88801fc3a918 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140
[ 426.450168][ T27] #1: ffff88801fc24588 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880
[ 426.454081][ T27] 4 locks held by syz.0.17/5546:
[ 426.485132][ T27] 2 locks held by syz.1.339/5929:
[ 426.495418][ T27]
[ 426.496445][ T27] =============================================
[ 426.496445][ T27]
[ 426.515712][ T27] NMI backtrace for cpu 0
[ 426.515727][ T27] CPU: 0 UID: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full)
[ 426.515738][ T27] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 426.515744][ T27] Call Trace:
[ 426.515748][ T27]
[ 426.515754][ T27] dump_stack_lvl+0xe8/0x150
[ 426.515781][ T27] nmi_cpu_backtrace+0x274/0x2d0
[ 426.515795][ T27] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 426.515813][ T27] nmi_trigger_cpumask_backtrace+0x17a/0x300
[ 426.515825][ T27] sys_info+0x135/0x170
[ 426.515835][ T27] watchdog+0xf95/0xfe0
[ 426.515851][ T27] ? watchdog+0x20a/0xfe0
[ 426.515866][ T27] kthread+0x711/0x8a0
[ 426.515881][ T27] ? __pfx_watchdog+0x10/0x10
[ 426.515893][ T27] ? __pfx_kthread+0x10/0x10
[ 426.515907][ T27] ? _raw_spin_unlock_irq+0x23/0x50
[ 426.515922][ T27] ? __pfx_kthread+0x10/0x10
[ 426.515934][ T27] ret_from_fork+0x510/0xa50
[ 426.515946][ T27] ? __pfx_ret_from_fork+0x10/0x10
[ 426.515954][ T27] ? __switch_to+0xc9e/0x1480
[ 426.515969][ T27] ? __pfx_kthread+0x10/0x10
[ 426.515981][ T27] ret_from_fork_asm+0x1a/0x30
[ 426.516003][ T27]
[ 426.665460][ T27] Kernel panic - not syncing: hung_task: blocked tasks
[ 426.668522][ T27] CPU: 0 UID: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full)
[ 426.672543][ T27] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 426.677565][ T27] Call Trace:
[ 426.679138][ T27]
[ 426.680502][ T27] vpanic+0x1e0/0x670
[ 426.682230][ T27] panic+0xb9/0xc0
[ 426.683841][ T27] ? __pfx_panic+0x10/0x10
[ 426.685690][ T27] ? preempt_schedule_thunk+0x16/0x30
[ 426.687955][ T27] ? nmi_trigger_cpumask_backtrace+0x2bb/0x300
[ 426.690505][ T27] watchdog+0xfdf/0xfe0
[ 426.692336][ T27] ? watchdog+0x20a/0xfe0
[ 426.694355][ T27] kthread+0x711/0x8a0
[ 426.696631][ T27] ? __pfx_watchdog+0x10/0x10
[ 426.699050][ T27] ? __pfx_kthread+0x10/0x10
[ 426.701494][ T27] ? _raw_spin_unlock_irq+0x23/0x50
[ 426.703775][ T27] ? __pfx_kthread+0x10/0x10
[ 426.706144][ T27] ret_from_fork+0x510/0xa50
[ 426.708147][ T27] ? __pfx_ret_from_fork+0x10/0x10
[ 426.710314][ T27] ? __switch_to+0xc9e/0x1480
[ 426.712338][ T27] ? __pfx_kthread+0x10/0x10
[ 426.714301][ T27] ret_from_fork_asm+0x1a/0x30
[ 426.716355][ T27]
[ 426.717920][ T27] Kernel Offset: disabled
[ 426.719767][ T27] Rebooting in 86400 seconds..