syzkaller login: [ 91.937678][ T55] cfg80211: failed to load regulatory.db
Warning: Permanently added '[localhost]:58047' (ED25519) to the list of known hosts.
2025/10/29 16:49:28 parsed 1 programs
[ 240.352590][ T5344] cgroup: Unknown subsys name 'net'
[ 240.421453][ T5344] cgroup: Unknown subsys name 'cpuset'
[ 240.426677][ T5344] cgroup: Unknown subsys name 'rlimit'
[ 242.141812][ T5344] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 245.656892][ T5352] 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.
[ 247.202824][ T5381] chnl_net:caif_netlink_parms(): no params data found
[ 247.273567][ T5381] bridge0: port 1(bridge_slave_0) entered blocking state
[ 247.277775][ T5381] bridge0: port 1(bridge_slave_0) entered disabled state
[ 247.280944][ T5381] bridge_slave_0: entered allmulticast mode
[ 247.284774][ T5381] bridge_slave_0: entered promiscuous mode
[ 247.291455][ T5381] bridge0: port 2(bridge_slave_1) entered blocking state
[ 247.294526][ T5381] bridge0: port 2(bridge_slave_1) entered disabled state
[ 247.298040][ T5381] bridge_slave_1: entered allmulticast mode
[ 247.301674][ T5381] bridge_slave_1: entered promiscuous mode
[ 247.324136][ T5381] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 247.330760][ T5381] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 247.351891][ T5381] team0: Port device team_slave_0 added
[ 247.356179][ T5381] team0: Port device team_slave_1 added
[ 247.377075][ T5381] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 247.380669][ T5381] 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.
[ 247.392244][ T5381] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 247.399356][ T5381] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 247.402393][ T5381] 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.
[ 247.413739][ T5381] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 247.460444][ T5381] hsr_slave_0: entered promiscuous mode
[ 247.464344][ T5381] hsr_slave_1: entered promiscuous mode
[ 247.604424][ T5381] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 247.613772][ T5381] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 247.621388][ T5381] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 247.629969][ T5381] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 247.694103][ T5381] bridge0: port 2(bridge_slave_1) entered blocking state
[ 247.697601][ T5381] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 247.791811][ T5381] 8021q: adding VLAN 0 to HW filter on device bond0
[ 247.806213][ T56] bridge0: port 2(bridge_slave_1) entered disabled state
[ 247.821869][ T5381] 8021q: adding VLAN 0 to HW filter on device team0
[ 247.832023][ T56] bridge0: port 1(bridge_slave_0) entered blocking state
[ 247.835256][ T56] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 247.849035][ T56] bridge0: port 2(bridge_slave_1) entered blocking state
[ 247.852362][ T56] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 248.021562][ T5381] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 248.056695][ T5381] veth0_vlan: entered promiscuous mode
[ 248.065362][ T5381] veth1_vlan: entered promiscuous mode
[ 248.092718][ T5381] veth0_macvtap: entered promiscuous mode
[ 248.101346][ T5381] veth1_macvtap: entered promiscuous mode
[ 248.120280][ T5381] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 248.131119][ T5381] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 248.142219][ T56] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 248.161118][ T56] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 248.164789][ T56] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 248.179979][ T56] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 248.325572][ T56] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 248.384359][ T56] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 248.428967][ T56] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 248.469907][ T56] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 248.714112][ T5415] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 248.718314][ T5415] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 248.721714][ T5415] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 248.725182][ T5415] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 248.729744][ T5415] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 250.226596][ T1039] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 250.235870][ T1039] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 250.265226][ T1048] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 250.268845][ T1048] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 250.778366][ T56] bridge_slave_1: left allmulticast mode
[ 250.780956][ T56] bridge_slave_1: left promiscuous mode
[ 250.796095][ T56] bridge0: port 2(bridge_slave_1) entered disabled state
[ 250.816819][ T56] bridge_slave_0: left allmulticast mode
[ 250.827725][ T56] bridge_slave_0: left promiscuous mode
[ 250.830244][ T56] bridge0: port 1(bridge_slave_0) entered disabled state
2025/10/29 16:49:41 executed programs: 0
[ 250.955845][ T5415] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 250.960126][ T5415] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 250.963786][ T5415] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 250.977415][ T5415] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 250.981560][ T5415] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 251.328960][ T56] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 251.335061][ T56] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 251.340868][ T56] bond0 (unregistering): Released all slaves
[ 251.456918][ T56] hsr_slave_0: left promiscuous mode
[ 251.467221][ T56] hsr_slave_1: left promiscuous mode
[ 251.473374][ T56] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 251.476659][ T56] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 251.490930][ T56] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 251.494163][ T56] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 251.519323][ T56] veth1_macvtap: left promiscuous mode
[ 251.521875][ T56] veth0_macvtap: left promiscuous mode
[ 251.524565][ T56] veth1_vlan: left promiscuous mode
[ 251.526996][ T56] veth0_vlan: left promiscuous mode
[ 251.933572][ T56] team0 (unregistering): Port device team_slave_1 removed
[ 251.952495][ T56] team0 (unregistering): Port device team_slave_0 removed
[ 252.475578][ T5454] chnl_net:caif_netlink_parms(): no params data found
[ 252.926839][ T5454] bridge0: port 1(bridge_slave_0) entered blocking state
[ 252.940392][ T5454] bridge0: port 1(bridge_slave_0) entered disabled state
[ 252.943445][ T5454] bridge_slave_0: entered allmulticast mode
[ 252.969699][ T5454] bridge_slave_0: entered promiscuous mode
[ 253.050751][ T5415] Bluetooth: hci0: command tx timeout
[ 253.059448][ T5454] bridge0: port 2(bridge_slave_1) entered blocking state
[ 253.074208][ T5454] bridge0: port 2(bridge_slave_1) entered disabled state
[ 253.089781][ T5454] bridge_slave_1: entered allmulticast mode
[ 253.111860][ T5454] bridge_slave_1: entered promiscuous mode
[ 253.183381][ T5454] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 253.244178][ T5454] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 253.390969][ T5454] team0: Port device team_slave_0 added
[ 253.395423][ T5454] team0: Port device team_slave_1 added
[ 253.469753][ T5454] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 253.472725][ T5454] 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.
[ 253.492190][ T5454] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 253.510122][ T5454] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 253.513207][ T5454] 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.
[ 253.543882][ T5454] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 253.676366][ T5454] hsr_slave_0: entered promiscuous mode
[ 253.688975][ T5454] hsr_slave_1: entered promiscuous mode
[ 254.256929][ T5454] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 254.278255][ T5454] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 254.291128][ T5454] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 254.309168][ T5454] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 254.454670][ T5454] 8021q: adding VLAN 0 to HW filter on device bond0
[ 254.485675][ T5454] 8021q: adding VLAN 0 to HW filter on device team0
[ 254.515540][ T1042] bridge0: port 1(bridge_slave_0) entered blocking state
[ 254.518826][ T1042] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 254.538816][ T56] bridge0: port 2(bridge_slave_1) entered blocking state
[ 254.542173][ T56] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 254.905239][ T5454] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 254.989962][ T5454] veth0_vlan: entered promiscuous mode
[ 255.010961][ T5454] veth1_vlan: entered promiscuous mode
[ 255.063774][ T5454] veth0_macvtap: entered promiscuous mode
[ 255.081332][ T5454] veth1_macvtap: entered promiscuous mode
[ 255.113616][ T5454] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 255.128816][ T5415] Bluetooth: hci0: command tx timeout
[ 255.135116][ T5454] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 255.159387][ T56] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 255.180359][ T56] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 255.202238][ T56] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 255.206219][ T56] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 255.290924][ T1039] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 255.294730][ T1039] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 255.365305][ T1048] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 255.380778][ T1048] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 255.864633][ T5520] loop0: detected capacity change from 0 to 32768
[ 257.207495][ T5415] Bluetooth: hci0: command tx timeout
[ 259.287627][ T5415] Bluetooth: hci0: command tx timeout
[ 260.895187][ T1314] ieee802154 phy0 wpan0: encryption failed: -22
[ 260.898375][ T1314] ieee802154 phy1 wpan1: encryption failed: -22
[ 270.525800][ T4667] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1
[ 270.531335][ T4667] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9
[ 270.535361][ T4667] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9
[ 270.539881][ T4667] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4
[ 270.543726][ T4667] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2
[ 271.247153][ T5525] chnl_net:caif_netlink_parms(): no params data found
[ 271.379753][ T5525] bridge0: port 1(bridge_slave_0) entered blocking state
[ 271.387649][ T5525] bridge0: port 1(bridge_slave_0) entered disabled state
[ 271.390970][ T5525] bridge_slave_0: entered allmulticast mode
[ 271.407608][ T5525] bridge_slave_0: entered promiscuous mode
[ 271.411989][ T5525] bridge0: port 2(bridge_slave_1) entered blocking state
[ 271.415182][ T5525] bridge0: port 2(bridge_slave_1) entered disabled state
[ 271.427758][ T5525] bridge_slave_1: entered allmulticast mode
[ 271.432215][ T5525] bridge_slave_1: entered promiscuous mode
[ 271.482797][ T5525] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 271.500229][ T5525] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 271.545232][ T5525] team0: Port device team_slave_0 added
[ 271.559842][ T5525] team0: Port device team_slave_1 added
[ 271.603988][ T5525] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 271.617473][ T5525] 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.
[ 271.637379][ T5525] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 271.648082][ T5525] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 271.651204][ T5525] 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.
[ 271.677423][ T5525] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 271.746688][ T5525] hsr_slave_0: entered promiscuous mode
[ 271.758795][ T5525] hsr_slave_1: entered promiscuous mode
[ 271.761937][ T5525] debugfs: 'hsr0' already exists in 'hsr'
[ 271.764313][ T5525] Cannot create hsr debugfs directory
[ 272.061828][ T5525] netdevsim netdevsim1 netdevsim0: renamed from eth0
[ 272.079002][ T5525] netdevsim netdevsim1 netdevsim1: renamed from eth1
[ 272.094817][ T5525] netdevsim netdevsim1 netdevsim2: renamed from eth2
[ 272.109051][ T5525] netdevsim netdevsim1 netdevsim3: renamed from eth3
[ 272.158401][ T5525] bridge0: port 2(bridge_slave_1) entered blocking state
[ 272.161835][ T5525] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 272.165205][ T5525] bridge0: port 1(bridge_slave_0) entered blocking state
[ 272.168188][ T5525] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 272.250204][ T1039] bridge0: port 1(bridge_slave_0) entered disabled state
[ 272.253403][ T1039] bridge0: port 2(bridge_slave_1) entered disabled state
[ 272.270420][ T5525] 8021q: adding VLAN 0 to HW filter on device bond0
[ 272.299384][ T5525] 8021q: adding VLAN 0 to HW filter on device team0
[ 272.311720][ T56] bridge0: port 1(bridge_slave_0) entered blocking state
[ 272.314368][ T56] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 272.338459][ T1048] bridge0: port 2(bridge_slave_1) entered blocking state
[ 272.341854][ T1048] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 272.386667][ T5525] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network
[ 272.397715][ T5525] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network
[ 272.568417][ T4667] Bluetooth: hci1: command tx timeout
[ 272.670272][ T5525] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 272.731769][ T5525] veth0_vlan: entered promiscuous mode
[ 272.751636][ T5525] veth1_vlan: entered promiscuous mode
[ 272.793473][ T5525] veth0_macvtap: entered promiscuous mode
[ 272.810445][ T5525] veth1_macvtap: entered promiscuous mode
[ 272.849239][ T5525] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 272.860148][ T5525] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 272.882859][ T56] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 272.886797][ T56] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 272.899249][ T56] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 272.903256][ T56] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 272.993752][ T1039] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 272.997164][ T1039] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 273.051796][ T1048] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 273.055213][ T1048] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
2025/10/29 16:50:03 executed programs: 3
[ 274.649278][ T4667] Bluetooth: hci1: command tx timeout
[ 276.730096][ T4667] Bluetooth: hci1: command tx timeout
2025/10/29 16:50:08 executed programs: 13
[ 278.807788][ T4667] Bluetooth: hci1: command tx timeout
2025/10/29 16:50:13 executed programs: 24
2025/10/29 16:50:19 executed programs: 35
2025/10/29 16:50:24 executed programs: 46
2025/10/29 16:50:29 executed programs: 57
2025/10/29 16:50:34 executed programs: 68
2025/10/29 16:50:40 executed programs: 79
2025/10/29 16:50:45 executed programs: 90
2025/10/29 16:50:50 executed programs: 101
[ 322.339196][ T1314] ieee802154 phy0 wpan0: encryption failed: -22
[ 322.341669][ T1314] ieee802154 phy1 wpan1: encryption failed: -22
2025/10/29 16:50:55 executed programs: 112
2025/10/29 16:51:01 executed programs: 123
2025/10/29 16:51:06 executed programs: 134
2025/10/29 16:51:11 executed programs: 145
2025/10/29 16:51:16 executed programs: 156
2025/10/29 16:51:21 executed programs: 167
2025/10/29 16:51:27 executed programs: 178
2025/10/29 16:51:32 executed programs: 189
2025/10/29 16:51:37 executed programs: 200
2025/10/29 16:51:42 executed programs: 211
[ 375.607423][ T5415] Bluetooth: hci0: command 0x0406 tx timeout
2025/10/29 16:51:48 executed programs: 222
2025/10/29 16:51:53 executed programs: 233
[ 383.773219][ T1314] ieee802154 phy0 wpan0: encryption failed: -22
[ 383.775498][ T1314] ieee802154 phy1 wpan1: encryption failed: -22
2025/10/29 16:51:58 executed programs: 244
2025/10/29 16:52:03 executed programs: 255
[ 396.089608][ T5415] Bluetooth: hci1: command 0x0406 tx timeout
2025/10/29 16:52:08 executed programs: 266
2025/10/29 16:52:13 executed programs: 277
2025/10/29 16:52:18 executed programs: 288
2025/10/29 16:52:23 executed programs: 299
2025/10/29 16:52:29 executed programs: 310
2025/10/29 16:52:34 executed programs: 321
2025/10/29 16:52:39 executed programs: 332
2025/10/29 16:52:44 executed programs: 343
2025/10/29 16:52:49 executed programs: 354
2025/10/29 16:52:54 executed programs: 365
[ 445.209036][ T26] INFO: task kworker/u4:4:56 blocked for more than 143 seconds.
[ 445.212044][ T26] Not tainted syzkaller #0
[ 445.213932][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 445.219807][ T1314] ieee802154 phy0 wpan0: encryption failed: -22
[ 445.222487][ T1314] ieee802154 phy1 wpan1: encryption failed: -22
[ 445.236199][ T26] task:kworker/u4:4 state:D stack:19944 pid:56 tgid:56 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 445.247530][ T26] Workqueue: writeback wb_workfn (flush-7:0)
[ 445.250250][ T26] Call Trace:
[ 445.251678][ T26]
[ 445.264191][ T26] __schedule+0x1798/0x4cc0
[ 445.266127][ T26] ? blk_mq_flush_plug_list+0x48b/0x550
[ 445.277349][ T26] ? __pfx_blk_mq_flush_plug_list+0x10/0x10
[ 445.287374][ T26] ? __lock_acquire+0xab9/0xd20
[ 445.289672][ T26] ? __pfx___schedule+0x10/0x10
[ 445.291431][ T26] ? schedule+0x91/0x360
[ 445.293138][ T26] schedule+0x165/0x360
[ 445.294936][ T26] schedule_preempt_disabled+0x13/0x30
[ 445.317353][ T26] __mutex_lock+0x7e6/0x1350
[ 445.319402][ T26] ? __mutex_lock+0x5bb/0x1350
[ 445.321405][ T26] ? jfs_commit_inode+0x1ca/0x530
[ 445.323420][ T26] ? __pfx___mutex_lock+0x10/0x10
[ 445.325478][ T26] ? __lock_acquire+0xab9/0xd20
[ 445.347372][ T26] jfs_commit_inode+0x1ca/0x530
[ 445.349586][ T26] ? __pfx_jfs_commit_inode+0x10/0x10
[ 445.352017][ T26] jfs_write_inode+0x145/0x220
[ 445.354118][ T26] __writeback_single_inode+0x6f1/0xff0
[ 445.387896][ T26] writeback_sb_inodes+0x6c7/0x1010
[ 445.397419][ T26] ? __pfx_writeback_sb_inodes+0x10/0x10
[ 445.399809][ T26] ? __pfx_down_read_trylock+0x10/0x10
[ 445.402464][ T26] ? __pfx___up_read+0x10/0x10
[ 445.404472][ T26] __writeback_inodes_wb+0x111/0x240
[ 445.406628][ T26] wb_writeback+0x44f/0xaf0
[ 445.427923][ T26] ? queue_io+0x3a1/0x590
[ 445.430254][ T26] ? __pfx_wb_writeback+0x10/0x10
[ 445.437375][ T26] wb_workfn+0xaef/0xef0
[ 445.439318][ T26] ? __pfx_wb_workfn+0x10/0x10
[ 445.441466][ T26] ? __lock_acquire+0xab9/0xd20
[ 445.443633][ T26] ? process_scheduled_works+0x9ef/0x17b0
[ 445.446110][ T26] ? _raw_spin_unlock_irq+0x23/0x50
[ 445.477325][ T26] ? process_scheduled_works+0x9ef/0x17b0
[ 445.487348][ T26] ? process_scheduled_works+0x9ef/0x17b0
[ 445.489867][ T26] process_scheduled_works+0xae1/0x17b0
[ 445.492382][ T26] ? __pfx_process_scheduled_works+0x10/0x10
[ 445.494995][ T26] worker_thread+0x8a0/0xda0
[ 445.496953][ T26] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 445.517685][ T26] ? __kthread_parkme+0x7b/0x200
[ 445.519931][ T26] kthread+0x711/0x8a0
[ 445.521690][ T26] ? __pfx_worker_thread+0x10/0x10
[ 445.523805][ T26] ? __pfx_kthread+0x10/0x10
[ 445.525860][ T26] ? _raw_spin_unlock_irq+0x23/0x50
[ 445.557403][ T26] ? lockdep_hardirqs_on+0x9c/0x150
[ 445.567357][ T26] ? __pfx_kthread+0x10/0x10
[ 445.569472][ T26] ret_from_fork+0x4bc/0x870
[ 445.571757][ T26] ? __pfx_ret_from_fork+0x10/0x10
[ 445.573867][ T26] ? __pfx_kthread+0x10/0x10
[ 445.575884][ T26] ret_from_fork_asm+0x1a/0x30
[ 445.598218][ T26]
[ 445.600366][ T26]
[ 445.600366][ T26] Showing all locks held in the system:
[ 445.603175][ T26] 1 lock held by khungtaskd/26:
[ 445.605182][ T26] #0: ffffffff8df3d2e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[ 445.627502][ T26] 4 locks held by kworker/u4:4/56:
[ 445.638547][ T26] #0: ffff888030f6e948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
[ 445.643472][ T26] #1: ffffc9000102fba0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
[ 445.662947][ T26] #2: ffff8880339cc0e0 (&type->s_umount_key#54){.+.+}-{4:4}, at: super_trylock_shared+0x20/0xf0
[ 445.667194][ T26] #3: ffff888041022f90 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: jfs_commit_inode+0x1ca/0x530
[ 445.692022][ T26] 2 locks held by getty/5107:
[ 445.694117][ T26] #0: ffff8880337640a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[ 445.717363][ T26] #1: ffffc9000282b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
[ 445.722018][ T26] 4 locks held by syz.0.17/5520:
[ 445.737473][ T26]
[ 445.738642][ T26] =============================================
[ 445.738642][ T26]
[ 445.742475][ T26] NMI backtrace for cpu 0
[ 445.742488][ T26] CPU: 0 UID: 0 PID: 26 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full)
[ 445.742500][ T26] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 445.742506][ T26] Call Trace:
[ 445.742514][ T26]
[ 445.742519][ T26] dump_stack_lvl+0x189/0x250
[ 445.742541][ T26] ? __pfx_dump_stack_lvl+0x10/0x10
[ 445.742554][ T26] ? __pfx__printk+0x10/0x10
[ 445.742571][ T26] nmi_cpu_backtrace+0x39e/0x3d0
[ 445.742589][ T26] ? __pfx_nmi_cpu_backtrace+0x10/0x10
[ 445.742604][ T26] ? __pfx__printk+0x10/0x10
[ 445.742615][ T26] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 445.742632][ T26] nmi_trigger_cpumask_backtrace+0x17a/0x300
[ 445.742648][ T26] watchdog+0xf60/0xfa0
[ 445.742661][ T26] ? watchdog+0x1e2/0xfa0
[ 445.742674][ T26] kthread+0x711/0x8a0
[ 445.742689][ T26] ? __pfx_watchdog+0x10/0x10
[ 445.742699][ T26] ? __pfx_kthread+0x10/0x10
[ 445.742712][ T26] ? _raw_spin_unlock_irq+0x23/0x50
[ 445.742723][ T26] ? lockdep_hardirqs_on+0x9c/0x150
[ 445.742734][ T26] ? __pfx_kthread+0x10/0x10
[ 445.742747][ T26] ret_from_fork+0x4bc/0x870
[ 445.742760][ T26] ? __pfx_ret_from_fork+0x10/0x10
[ 445.742775][ T26] ? __pfx_kthread+0x10/0x10
[ 445.742788][ T26] ret_from_fork_asm+0x1a/0x30
[ 445.742806][ T26]
2025/10/29 16:52:59 executed programs: 375
2025/10/29 16:53:05 executed programs: 386
VM DIAGNOSIS:
16:52:55 Registers:
info registers vcpu 0
CPU#0
RAX=000000000000003e RBX=000000000000003e RCX=0000000000000000 RDX=00000000000003f8
RSI=0000000000000000 RDI=0000000000000020 RBP=00000000000003f8 RSP=ffffc900004d7690
R8 =ffff888033a40237 R9 =1ffff11006748046 R10=dffffc0000000000 R11=ffffffff851664a0
R12=dffffc0000000000 R13=ffffffff997e1900 R14=ffffffff99af5320 R15=0000000000000000
RIP=ffffffff8516651c 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 ffff88808d733000 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=00007f7c33b58000 CR3=0000000059a04000 CR4=00352ef0
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
Opmask00=0000000080040001 Opmask01=0000000000000000 Opmask02=00000000ffffffef Opmask03=0000000000000000
Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000
ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007ffc11098140 00007ffc11098120
ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007ffc11098280 00007ffc11098100
ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 000001a0000000d0 00000000ffffffff
ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007ffc11098140
ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007ffc11098280
ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007ffc11098280 00007ffc11098100
ZMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007ffc11098140 00007ffc11098120
ZMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007f7c3c41307c
ZMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007f7c3c41315a
ZMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM16=0000000000000000 0000000000000000 0000000000000000 0000000000000000 02810949c49a5297 969b90844aa87ab5 3425fabedff0071d 671c6fcdddec9c78
ZMM17=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2525252525252525 2525252525252525 2525252525252525 2525252525252525
ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0063696e61703d73 726f727265006f72 2d746e756f6d6572 3d73726f72726500
ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 00464c4b44551856 574a575740004a57 08514b504a484057 1856574a57574000
ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 000000524f525245
ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00524f5252450040
ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00e800a800000000
ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM25=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000