[ 86.721984][ T801] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.1.244' (ED25519) to the list of known hosts.
2026/01/27 03:48:31 ignoring optional flag "type"="gce"
2026/01/27 03:48:31 parsed 1 programs
2026/01/27 03:48:31 executed programs: 0
[ 88.565314][ T5840] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 88.572917][ T5840] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 88.580900][ T5840] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 88.588743][ T5840] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 88.596470][ T5840] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 88.708484][ T6024] chnl_net:caif_netlink_parms(): no params data found
[ 88.772202][ T6024] bridge0: port 1(bridge_slave_0) entered blocking state
[ 88.779299][ T6024] bridge0: port 1(bridge_slave_0) entered disabled state
[ 88.786811][ T6024] bridge_slave_0: entered allmulticast mode
[ 88.793784][ T6024] bridge_slave_0: entered promiscuous mode
[ 88.801672][ T6024] bridge0: port 2(bridge_slave_1) entered blocking state
[ 88.809167][ T6024] bridge0: port 2(bridge_slave_1) entered disabled state
[ 88.816863][ T6024] bridge_slave_1: entered allmulticast mode
[ 88.824043][ T6024] bridge_slave_1: entered promiscuous mode
[ 88.852517][ T6024] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 88.864907][ T6024] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 88.893709][ T6024] team0: Port device team_slave_0 added
[ 88.901445][ T6024] team0: Port device team_slave_1 added
[ 88.927969][ T6024] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 88.935666][ T6024] 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.
[ 88.961578][ T6024] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 88.973888][ T6024] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 88.980874][ T6024] 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.
[ 89.006772][ T6024] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 89.042040][ T6024] hsr_slave_0: entered promiscuous mode
[ 89.048293][ T6024] hsr_slave_1: entered promiscuous mode
[ 89.147824][ T6024] bridge0: port 2(bridge_slave_1) entered blocking state
[ 89.154971][ T6024] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 89.162439][ T6024] bridge0: port 1(bridge_slave_0) entered blocking state
[ 89.169538][ T6024] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 89.217761][ T6024] 8021q: adding VLAN 0 to HW filter on device bond0
[ 89.235043][ T13] bridge0: port 1(bridge_slave_0) entered disabled state
[ 89.243216][ T13] bridge0: port 2(bridge_slave_1) entered disabled state
[ 89.257015][ T6024] 8021q: adding VLAN 0 to HW filter on device team0
[ 89.270693][ T63] bridge0: port 1(bridge_slave_0) entered blocking state
[ 89.277782][ T63] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 89.291060][ T49] bridge0: port 2(bridge_slave_1) entered blocking state
[ 89.298196][ T49] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 89.359117][ T6024] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 89.647607][ T6024] veth0_vlan: entered promiscuous mode
[ 89.658663][ T6024] veth1_vlan: entered promiscuous mode
[ 89.686577][ T6024] veth0_macvtap: entered promiscuous mode
[ 89.695725][ T6024] veth1_macvtap: entered promiscuous mode
[ 89.716253][ T6024] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 89.728518][ T6024] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 89.890531][ T6050] nbd0: detected capacity change from 0 to 14
[ 90.631651][ T51] block nbd0: Receive control failed (result -104)
[ 90.640797][ T51] Bluetooth: hci0: command tx timeout
[ 92.720495][ T51] Bluetooth: hci0: command tx timeout
[ 94.800490][ T51] Bluetooth: hci0: command tx timeout
[ 96.880103][ T51] Bluetooth: hci0: command tx timeout
[ 120.001452][ T2109] block nbd0: Possible stuck request ffff8880279d8000: control (read@0,4096B). Runtime 30 seconds
[ 132.805533][ T1303] ieee802154 phy0 wpan0: encryption failed: -22
[ 132.812293][ T1303] ieee802154 phy1 wpan1: encryption failed: -22
2026/01/27 03:49:29 executed programs: 1
[ 146.887923][ T5840] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1
[ 146.895504][ T5840] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9
[ 146.903445][ T5840] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9
[ 146.912565][ T5840] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4
[ 146.920690][ T5840] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2
[ 147.044065][ T6059] chnl_net:caif_netlink_parms(): no params data found
[ 147.105690][ T6059] bridge0: port 1(bridge_slave_0) entered blocking state
[ 147.112956][ T6059] bridge0: port 1(bridge_slave_0) entered disabled state
[ 147.120635][ T6059] bridge_slave_0: entered allmulticast mode
[ 147.127621][ T6059] bridge_slave_0: entered promiscuous mode
[ 147.136012][ T6059] bridge0: port 2(bridge_slave_1) entered blocking state
[ 147.143238][ T6059] bridge0: port 2(bridge_slave_1) entered disabled state
[ 147.150896][ T6059] bridge_slave_1: entered allmulticast mode
[ 147.157862][ T6059] bridge_slave_1: entered promiscuous mode
[ 147.186185][ T6059] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 147.197667][ T6059] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 147.227490][ T6059] team0: Port device team_slave_0 added
[ 147.235607][ T6059] team0: Port device team_slave_1 added
[ 147.261575][ T6059] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 147.268553][ T6059] 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.
[ 147.297221][ T6059] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 147.310130][ T6059] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 147.317082][ T6059] 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.
[ 147.344002][ T6059] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 147.378911][ T6059] hsr_slave_0: entered promiscuous mode
[ 147.385385][ T6059] hsr_slave_1: entered promiscuous mode
[ 147.391723][ T6059] debugfs: 'hsr0' already exists in 'hsr'
[ 147.397602][ T6059] Cannot create hsr debugfs directory
[ 147.499929][ T6059] bridge0: port 2(bridge_slave_1) entered blocking state
[ 147.507075][ T6059] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 147.514750][ T6059] bridge0: port 1(bridge_slave_0) entered blocking state
[ 147.521966][ T6059] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 147.569179][ T6059] 8021q: adding VLAN 0 to HW filter on device bond0
[ 147.585696][ T63] bridge0: port 1(bridge_slave_0) entered disabled state
[ 147.595001][ T63] bridge0: port 2(bridge_slave_1) entered disabled state
[ 147.608265][ T6059] 8021q: adding VLAN 0 to HW filter on device team0
[ 147.621653][ T158] bridge0: port 1(bridge_slave_0) entered blocking state
[ 147.628754][ T158] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 147.641820][ T63] bridge0: port 2(bridge_slave_1) entered blocking state
[ 147.649061][ T63] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 147.708945][ T6059] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 148.006283][ T6059] veth0_vlan: entered promiscuous mode
[ 148.016970][ T6059] veth1_vlan: entered promiscuous mode
[ 148.045003][ T6059] veth0_macvtap: entered promiscuous mode
[ 148.054846][ T6059] veth1_macvtap: entered promiscuous mode
[ 148.071986][ T6059] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 148.085869][ T6059] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 148.960081][ T5840] Bluetooth: hci1: command tx timeout
[ 150.081628][ T2109] block nbd0: Possible stuck request ffff8880279d8000: control (read@0,4096B). Runtime 60 seconds
[ 151.040040][ T5840] Bluetooth: hci1: command tx timeout
[ 151.156608][ T5203] udevd[5203]: worker [6010] /devices/virtual/block/nbd0 is taking a long time
[ 153.120011][ T5840] Bluetooth: hci1: command tx timeout
[ 155.200119][ T5840] Bluetooth: hci1: command tx timeout
[ 180.160541][ T2109] block nbd0: Possible stuck request ffff8880279d8000: control (read@0,4096B). Runtime 90 seconds
[ 194.245390][ T1303] ieee802154 phy0 wpan0: encryption failed: -22
[ 194.252417][ T1303] ieee802154 phy1 wpan1: encryption failed: -22
2026/01/27 03:50:27 executed programs: 2
[ 205.210541][ T51] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1
[ 205.218649][ T51] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9
[ 205.226354][ T51] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9
[ 205.234876][ T51] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4
[ 205.242738][ T51] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2
[ 205.364542][ T6096] chnl_net:caif_netlink_parms(): no params data found
[ 205.429130][ T6096] bridge0: port 1(bridge_slave_0) entered blocking state
[ 205.437218][ T6096] bridge0: port 1(bridge_slave_0) entered disabled state
[ 205.444637][ T6096] bridge_slave_0: entered allmulticast mode
[ 205.451678][ T6096] bridge_slave_0: entered promiscuous mode
[ 205.460420][ T6096] bridge0: port 2(bridge_slave_1) entered blocking state
[ 205.467567][ T6096] bridge0: port 2(bridge_slave_1) entered disabled state
[ 205.474776][ T6096] bridge_slave_1: entered allmulticast mode
[ 205.481931][ T6096] bridge_slave_1: entered promiscuous mode
[ 205.512344][ T6096] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 205.524851][ T6096] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 205.554904][ T6096] team0: Port device team_slave_0 added
[ 205.563038][ T6096] team0: Port device team_slave_1 added
[ 205.589304][ T6096] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 205.596943][ T6096] 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.
[ 205.623010][ T6096] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 205.635621][ T6096] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 205.642749][ T6096] 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.
[ 205.669040][ T6096] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 205.704020][ T6096] hsr_slave_0: entered promiscuous mode
[ 205.710527][ T6096] hsr_slave_1: entered promiscuous mode
[ 205.716632][ T6096] debugfs: 'hsr0' already exists in 'hsr'
[ 205.722412][ T6096] Cannot create hsr debugfs directory
[ 205.820876][ T6096] bridge0: port 2(bridge_slave_1) entered blocking state
[ 205.827982][ T6096] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 205.835464][ T6096] bridge0: port 1(bridge_slave_0) entered blocking state
[ 205.842613][ T6096] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 205.888922][ T6096] 8021q: adding VLAN 0 to HW filter on device bond0
[ 205.904604][ T49] bridge0: port 1(bridge_slave_0) entered disabled state
[ 205.913136][ T49] bridge0: port 2(bridge_slave_1) entered disabled state
[ 205.927325][ T6096] 8021q: adding VLAN 0 to HW filter on device team0
[ 205.939752][ T13] bridge0: port 1(bridge_slave_0) entered blocking state
[ 205.946876][ T13] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 205.959576][ T49] bridge0: port 2(bridge_slave_1) entered blocking state
[ 205.966741][ T49] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 206.032159][ T6096] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 206.325458][ T6096] veth0_vlan: entered promiscuous mode
[ 206.337841][ T6096] veth1_vlan: entered promiscuous mode
[ 206.363794][ T6096] veth0_macvtap: entered promiscuous mode
[ 206.372576][ T6096] veth1_macvtap: entered promiscuous mode
[ 206.388585][ T6096] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 206.405980][ T6096] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 207.280151][ T5840] Bluetooth: hci2: command tx timeout
[ 209.360031][ T5840] Bluetooth: hci2: command tx timeout
[ 210.240753][ T2109] block nbd0: Possible stuck request ffff8880279d8000: control (read@0,4096B). Runtime 120 seconds
[ 211.440507][ T51] Bluetooth: hci2: command tx timeout
[ 211.680224][ T51] Bluetooth: hci0: command 0x0406 tx timeout
[ 213.520063][ T5840] Bluetooth: hci2: command tx timeout
[ 240.320452][ T2160] block nbd0: Possible stuck request ffff8880279d8000: control (read@0,4096B). Runtime 150 seconds
[ 249.290176][ T31] INFO: task syz-executor.0:6049 blocked for more than 143 seconds.
[ 249.298191][ T31] Not tainted syzkaller #0
[ 249.303239][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 249.312037][ T31] task:syz-executor.0 state:D stack:25688 pid:6049 tgid:6049 ppid:6024 task_flags:0x400040 flags:0x00080002
[ 249.324011][ T31] Call Trace:
[ 249.327303][ T31]
[ 249.330293][ T31] __schedule+0x1539/0x5080
[ 249.334808][ T31] ? __lock_acquire+0x6b5/0x2cf0
[ 249.339763][ T31] ? __pfx___schedule+0x10/0x10
[ 249.344653][ T31] ? schedule+0x90/0x360
[ 249.348900][ T31] schedule+0x164/0x360
[ 249.353128][ T31] schedule_preempt_disabled+0x13/0x30
[ 249.358677][ T31] __mutex_lock+0x7fe/0x1300
[ 249.363304][ T31] ? __mutex_lock+0x5ac/0x1300
[ 249.368081][ T31] ? bdev_release+0x1a9/0x650
[ 249.372868][ T31] ? __pfx___mutex_lock+0x10/0x10
[ 249.378076][ T31] ? __asan_memset+0x22/0x50
[ 249.382744][ T31] ? __fsnotify_parent+0x267/0x620
[ 249.387868][ T31] ? __pfx___fsnotify_parent+0x10/0x10
[ 249.393407][ T31] ? locks_remove_posix+0x432/0x690
[ 249.398696][ T31] bdev_release+0x1a9/0x650
[ 249.403302][ T31] ? __pfx_blkdev_release+0x10/0x10
[ 249.408510][ T31] blkdev_release+0x15/0x20
[ 249.413077][ T31] __fput+0x44f/0xa70
[ 249.417088][ T31] fput_close_sync+0x11f/0x240
[ 249.421878][ T31] ? __pfx_fput_close_sync+0x10/0x10
[ 249.427172][ T31] __x64_sys_close+0x7e/0x110
[ 249.431898][ T31] do_syscall_64+0xe2/0xf80
[ 249.436411][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 249.442865][ T31] ? clear_bhb_loop+0x40/0x90
[ 249.447561][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 249.453524][ T31] RIP: 0033:0x7f350b28cd5e
[ 249.457953][ T31] RSP: 002b:00007ffd4cd17198 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
[ 249.466403][ T31] RAX: ffffffffffffffda RBX: 000055555905e480 RCX: 00007f350b28cd5e
[ 249.474448][ T31] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
[ 249.482457][ T31] RBP: 00007f350b38d980 R08: 0000000000000000 R09: 0000000000000000
[ 249.490572][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000161e8
[ 249.498545][ T31] R13: 0000000000015efc R14: 00007ffd4cd17370 R15: 00007f350b790000
[ 249.506583][ T31]
[ 249.509604][ T31] INFO: task syz-executor.0:6050 blocked for more than 143 seconds.
[ 249.517627][ T31] Not tainted syzkaller #0
[ 249.522583][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 249.531407][ T31] task:syz-executor.0 state:D stack:26872 pid:6050 tgid:6049 ppid:6024 task_flags:0x400140 flags:0x00080002
[ 249.543376][ T31] Call Trace:
[ 249.546641][ T31]
[ 249.549554][ T31] __schedule+0x1539/0x5080
[ 249.554142][ T31] ? __lock_acquire+0x6b5/0x2cf0
[ 249.559100][ T31] ? __pfx___schedule+0x10/0x10
[ 249.564097][ T31] ? schedule+0x90/0x360
[ 249.568364][ T31] schedule+0x164/0x360
[ 249.572593][ T31] schedule_preempt_disabled+0x13/0x30
[ 249.578143][ T31] __mutex_lock+0x7fe/0x1300
[ 249.582769][ T31] ? __mutex_lock+0x5ac/0x1300
[ 249.587541][ T31] ? bdev_release+0x1a9/0x650
[ 249.592355][ T31] ? __pfx___mutex_lock+0x10/0x10
[ 249.597394][ T31] ? __asan_memset+0x22/0x50
[ 249.602198][ T31] ? __fsnotify_parent+0x267/0x620
[ 249.607350][ T31] ? __pfx___fsnotify_parent+0x10/0x10
[ 249.612885][ T31] bdev_release+0x1a9/0x650
[ 249.617403][ T31] ? __pfx_blkdev_release+0x10/0x10
[ 249.622649][ T31] blkdev_release+0x15/0x20
[ 249.627158][ T31] __fput+0x44f/0xa70
[ 249.631200][ T31] task_work_run+0x1d9/0x270
[ 249.635797][ T31] ? __pfx_task_work_run+0x10/0x10
[ 249.640930][ T31] ? __fput_deferred+0x216/0x380
[ 249.645885][ T31] ? __pfx___fput_deferred+0x10/0x10
[ 249.651235][ T31] exit_to_user_mode_loop+0xed/0x480
[ 249.656532][ T31] ? rcu_is_watching+0x15/0xb0
[ 249.661329][ T31] do_syscall_64+0x2b7/0xf80
[ 249.665925][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 249.672041][ T31] ? trace_irq_disable+0x37/0x100
[ 249.677137][ T31] ? clear_bhb_loop+0x40/0x90
[ 249.681874][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 249.687884][ T31] RIP: 0033:0x7f350b269a69
[ 249.692444][ T31] RSP: 002b:00007f350c3880b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 249.700894][ T31] RAX: 0000000000000000 RBX: 00007f350b38bf80 RCX: 00007f350b269a69
[ 249.708857][ T31] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
[ 249.717139][ T31] RBP: 00007f350b2df018 R08: 0000000000000000 R09: 0000000000000000
[ 249.725169][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 249.733208][ T31] R13: 000000000000000b R14: 00007f350b38bf80 R15: 00007ffd4cd17118
[ 249.741226][ T31]
[ 249.744290][ T31]
[ 249.744290][ T31] Showing all locks held in the system:
[ 249.752092][ T31] 1 lock held by khungtaskd/31:
[ 249.756936][ T31] #0: ffffffff8e75dee0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[ 249.766929][ T31] 2 locks held by syslogd/5185:
[ 249.771841][ T31] #0: ffff8880b853abe0 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x31/0x150
[ 249.781785][ T31] #1: ffff8880b8524588 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880
[ 249.790727][ T31] 2 locks held by getty/5588:
[ 249.795381][ T31] #0: ffff888033d1e0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[ 249.805153][ T31] #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13c0
[ 249.815315][ T31] 1 lock held by udevd/6010:
[ 249.820008][ T31] #0: ffff888027813358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
[ 249.829266][ T31] 1 lock held by syz-executor.0/6049:
[ 249.834696][ T31] #0: ffff888027813358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x1a9/0x650
[ 249.844532][ T31] 1 lock held by syz-executor.0/6050:
[ 249.849970][ T31] #0: ffff888027813358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x1a9/0x650
[ 249.859565][ T31] 1 lock held by syz-executor.0/6086:
[ 249.864987][ T31] #0: ffff888027813358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
[ 249.874293][ T31] 1 lock held by syz-executor.0/6087:
[ 249.879662][ T31] #0: ffff888027813358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
[ 249.888975][ T31] 1 lock held by syz-executor.0/6122:
[ 249.894424][ T31] #0: ffff888027813358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
[ 249.903706][ T31] 1 lock held by syz-executor.0/6123:
[ 249.909076][ T31] #0: ffff888027813358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
[ 249.918363][ T31]
[ 249.920967][ T31] =============================================
[ 249.920967][ T31]
[ 249.929388][ T31] NMI backtrace for cpu 0
[ 249.929406][ T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full)
[ 249.929421][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026
[ 249.929427][ T31] Call Trace:
[ 249.929432][ T31]
[ 249.929437][ T31] dump_stack_lvl+0xe8/0x150
[ 249.929456][ T31] nmi_cpu_backtrace+0x274/0x2d0
[ 249.929472][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 249.929485][ T31] nmi_trigger_cpumask_backtrace+0x17a/0x300
[ 249.929501][ T31] sys_info+0x135/0x170
[ 249.929513][ T31] watchdog+0xf90/0xfe0
[ 249.929530][ T31] ? watchdog+0x209/0xfe0
[ 249.929546][ T31] kthread+0x388/0x470
[ 249.929561][ T31] ? __pfx_watchdog+0x10/0x10
[ 249.929573][ T31] ? __pfx_kthread+0x10/0x10
[ 249.929587][ T31] ret_from_fork+0x51b/0xa40
[ 249.929601][ T31] ? __pfx_ret_from_fork+0x10/0x10
[ 249.929612][ T31] ? __switch_to+0xc7d/0x1400
[ 249.929624][ T31] ? __pfx_kthread+0x10/0x10
[ 249.929638][ T31] ret_from_fork_asm+0x1a/0x30
[ 249.929659][ T31]
[ 249.929663][ T31] Sending NMI from CPU 0 to CPUs 1:
[ 250.039207][ C1] NMI backtrace for cpu 1
[ 250.039229][ C1] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT(full)
[ 250.039247][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026
[ 250.039257][ C1] RIP: 0010:pv_native_safe_halt+0xf/0x20
[ 250.039281][ C1] Code: 51 7a 02 e9 c3 e6 02 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 03 3e 2a 00 fb f4 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90
[ 250.039295][ C1] RSP: 0018:ffffc90000197e20 EFLAGS: 00000246
[ 250.039309][ C1] RAX: 00000000000c94c5 RBX: ffffffff819a09dd RCX: 0000000080000001
[ 250.039321][ C1] RDX: 0000000000000001 RSI: ffffffff8dedf6c1 RDI: ffffffff8c273e00
[ 250.039333][ C1] RBP: ffffc90000197f10 R08: ffff8880b853375b R09: 1ffff110170a66eb
[ 250.039344][ C1] R10: dffffc0000000000 R11: ffffed10170a66ec R12: ffffffff901020b0
[ 250.039357][ C1] R13: 1ffff11003bdc000 R14: 0000000000000001 R15: 0000000000000001
[ 250.039367][ C1] FS: 0000000000000000(0000) GS:ffff8881253b4000(0000) knlGS:0000000000000000
[ 250.039380][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 250.039391][ C1] CR2: 00005623ef9af168 CR3: 000000000e54a000 CR4: 00000000003526f0
[ 250.039406][ C1] Call Trace:
[ 250.039413][ C1]
[ 250.039419][ C1] default_idle+0x9/0x20
[ 250.039440][ C1] default_idle_call+0x72/0xb0
[ 250.039462][ C1] do_idle+0x1bd/0x500
[ 250.039483][ C1] ? lockdep_hardirqs_on+0x7a/0x110
[ 250.039503][ C1] ? __pfx_do_idle+0x10/0x10
[ 250.039526][ C1] cpu_startup_entry+0x43/0x60
[ 250.039546][ C1] start_secondary+0x101/0x110
[ 250.039564][ C1] common_startup_64+0x13e/0x147
[ 250.039595][ C1]
[ 250.080568][ T31] Kernel panic - not syncing: hung_task: blocked tasks
[ 250.080587][ T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full)
[ 250.080607][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026
[ 250.080618][ T31] Call Trace:
[ 250.080626][ T31]
[ 250.080634][ T31] vpanic+0x1e0/0x670
[ 250.080664][ T31] panic+0xc5/0xd0
[ 250.080687][ T31] ? __pfx_panic+0x10/0x10
[ 250.080711][ T31] ? preempt_schedule_thunk+0x16/0x30
[ 250.080735][ T31] ? nmi_trigger_cpumask_backtrace+0x2bb/0x300
[ 250.080765][ T31] watchdog+0xfda/0xfe0
[ 250.080794][ T31] ? watchdog+0x209/0xfe0
[ 250.080824][ T31] kthread+0x388/0x470
[ 250.080850][ T31] ? __pfx_watchdog+0x10/0x10
[ 250.080873][ T31] ? __pfx_kthread+0x10/0x10
[ 250.080899][ T31] ret_from_fork+0x51b/0xa40
[ 250.080924][ T31] ? __pfx_ret_from_fork+0x10/0x10
[ 250.080943][ T31] ? __switch_to+0xc7d/0x1400
[ 250.081015][ T31] ? __pfx_kthread+0x10/0x10
[ 250.081042][ T31] ret_from_fork_asm+0x1a/0x30
[ 250.081082][ T31]
[ 250.308622][ T31] Kernel Offset: disabled
[ 250.312926][ T31] Rebooting in 86400 seconds..