Warning: Permanently added '10.128.1.16' (ED25519) to the list of known hosts. 2025/12/18 23:27:56 ignoring optional flag "type"="gce" 2025/12/18 23:27:56 parsed 1 programs 2025/12/18 23:27:56 executed programs: 0 [ 89.212327][ T5138] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 89.220220][ T5138] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 89.228187][ T5138] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 89.237333][ T5138] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 89.245194][ T5138] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 89.354834][ T6010] chnl_net:caif_netlink_parms(): no params data found [ 89.408713][ T6010] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.415929][ T6010] bridge0: port 1(bridge_slave_0) entered disabled state [ 89.423024][ T6010] bridge_slave_0: entered allmulticast mode [ 89.430100][ T6010] bridge_slave_0: entered promiscuous mode [ 89.438048][ T6010] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.445233][ T6010] bridge0: port 2(bridge_slave_1) entered disabled state [ 89.452388][ T6010] bridge_slave_1: entered allmulticast mode [ 89.459626][ T6010] bridge_slave_1: entered promiscuous mode [ 89.483163][ T6010] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 89.494786][ T6010] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 89.519811][ T6010] team0: Port device team_slave_0 added [ 89.527158][ T6010] team0: Port device team_slave_1 added [ 89.550049][ T6010] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 89.557027][ T6010] 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. [ 89.583700][ T6010] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 89.595644][ T6010] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 89.602590][ T6010] 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. [ 89.628797][ T6010] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 89.664197][ T6010] hsr_slave_0: entered promiscuous mode [ 89.670320][ T6010] hsr_slave_1: entered promiscuous mode [ 90.064856][ T6010] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 90.074540][ T6010] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 90.086309][ T6010] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 90.097393][ T6010] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 90.147687][ T6010] bridge0: port 2(bridge_slave_1) entered blocking state [ 90.154864][ T6010] bridge0: port 2(bridge_slave_1) entered forwarding state [ 90.162319][ T6010] bridge0: port 1(bridge_slave_0) entered blocking state [ 90.169525][ T6010] bridge0: port 1(bridge_slave_0) entered forwarding state [ 90.254500][ T6010] 8021q: adding VLAN 0 to HW filter on device bond0 [ 90.279201][ T2907] bridge0: port 1(bridge_slave_0) entered disabled state [ 90.287555][ T2907] bridge0: port 2(bridge_slave_1) entered disabled state [ 90.305044][ T6010] 8021q: adding VLAN 0 to HW filter on device team0 [ 90.320247][ T2907] bridge0: port 1(bridge_slave_0) entered blocking state [ 90.327717][ T2907] bridge0: port 1(bridge_slave_0) entered forwarding state [ 90.342668][ T2907] bridge0: port 2(bridge_slave_1) entered blocking state [ 90.349900][ T2907] bridge0: port 2(bridge_slave_1) entered forwarding state [ 90.560184][ T6010] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 90.617577][ T6010] veth0_vlan: entered promiscuous mode [ 90.630209][ T6010] veth1_vlan: entered promiscuous mode [ 90.664947][ T6010] veth0_macvtap: entered promiscuous mode [ 90.678554][ T6010] veth1_macvtap: entered promiscuous mode [ 90.699796][ T6010] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 90.715917][ T6010] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 90.731278][ T2907] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.746965][ T2907] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.758568][ T2907] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.767558][ T2907] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.937587][ T6068] nbd0: detected capacity change from 0 to 258 [ 91.314935][ T5138] Bluetooth: hci0: command tx timeout [ 91.682657][ T52] block nbd0: Receive control failed (result -104) [ 93.383717][ T52] Bluetooth: hci0: command tx timeout [ 95.464362][ T52] Bluetooth: hci0: command tx timeout [ 97.543736][ T52] Bluetooth: hci0: command tx timeout [ 121.153808][ T25] block nbd0: Possible stuck request ffff888026630000: control (read@0,4096B). Runtime 30 seconds [ 132.665909][ T1296] ieee802154 phy0 wpan0: encryption failed: -22 [ 132.672198][ T1296] ieee802154 phy1 wpan1: encryption failed: -22 2025/12/18 23:28:52 executed programs: 1 [ 146.870235][ T5138] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 146.878930][ T5138] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 146.886541][ T5138] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 146.895023][ T5138] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 146.903290][ T5138] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 147.018738][ T6207] chnl_net:caif_netlink_parms(): no params data found [ 147.073036][ T6207] bridge0: port 1(bridge_slave_0) entered blocking state [ 147.080223][ T6207] bridge0: port 1(bridge_slave_0) entered disabled state [ 147.087412][ T6207] bridge_slave_0: entered allmulticast mode [ 147.094342][ T6207] bridge_slave_0: entered promiscuous mode [ 147.101971][ T6207] bridge0: port 2(bridge_slave_1) entered blocking state [ 147.109211][ T6207] bridge0: port 2(bridge_slave_1) entered disabled state [ 147.116764][ T6207] bridge_slave_1: entered allmulticast mode [ 147.123454][ T6207] bridge_slave_1: entered promiscuous mode [ 147.147914][ T6207] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 147.159089][ T6207] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 147.184390][ T6207] team0: Port device team_slave_0 added [ 147.192594][ T6207] team0: Port device team_slave_1 added [ 147.213730][ T6207] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 147.220680][ T6207] 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. [ 147.247483][ T6207] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 147.259681][ T6207] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 147.267084][ T6207] 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. [ 147.293077][ T6207] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 147.326985][ T6207] hsr_slave_0: entered promiscuous mode [ 147.333114][ T6207] hsr_slave_1: entered promiscuous mode [ 147.339301][ T6207] debugfs: 'hsr0' already exists in 'hsr' [ 147.345126][ T6207] Cannot create hsr debugfs directory [ 147.427080][ T6207] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 147.493881][ T6207] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 147.552629][ T6207] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 147.625441][ T6207] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 147.727667][ T6207] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 147.737286][ T6207] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 147.746660][ T6207] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 147.756753][ T6207] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 147.779157][ T6207] bridge0: port 2(bridge_slave_1) entered blocking state [ 147.786278][ T6207] bridge0: port 2(bridge_slave_1) entered forwarding state [ 147.793664][ T6207] bridge0: port 1(bridge_slave_0) entered blocking state [ 147.800738][ T6207] bridge0: port 1(bridge_slave_0) entered forwarding state [ 147.840952][ T6207] 8021q: adding VLAN 0 to HW filter on device bond0 [ 147.855320][ T5088] bridge0: port 1(bridge_slave_0) entered disabled state [ 147.863021][ T5088] bridge0: port 2(bridge_slave_1) entered disabled state [ 147.877789][ T6207] 8021q: adding VLAN 0 to HW filter on device team0 [ 147.889424][ T60] bridge0: port 1(bridge_slave_0) entered blocking state [ 147.896515][ T60] bridge0: port 1(bridge_slave_0) entered forwarding state [ 147.908709][ T5088] bridge0: port 2(bridge_slave_1) entered blocking state [ 147.915822][ T5088] bridge0: port 2(bridge_slave_1) entered forwarding state [ 148.043358][ T6207] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 148.078530][ T6207] veth0_vlan: entered promiscuous mode [ 148.088328][ T6207] veth1_vlan: entered promiscuous mode [ 148.112208][ T6207] veth0_macvtap: entered promiscuous mode [ 148.120704][ T6207] veth1_macvtap: entered promiscuous mode [ 148.136662][ T6207] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 148.148729][ T6207] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 148.161225][ T1001] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 148.170244][ T1001] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 148.180196][ T1001] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 148.190097][ T1001] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 148.983721][ T52] Bluetooth: hci1: command tx timeout [ 151.063860][ T52] Bluetooth: hci1: command tx timeout [ 151.224696][ T25] block nbd0: Possible stuck request ffff888026630000: control (read@0,4096B). Runtime 60 seconds [ 151.253724][ T5187] udevd[5187]: worker [5995] /devices/virtual/block/nbd0 is taking a long time [ 153.144041][ T52] Bluetooth: hci1: command tx timeout [ 155.223751][ T52] Bluetooth: hci1: command tx timeout [ 181.307608][ T11] block nbd0: Possible stuck request ffff888026630000: control (read@0,4096B). Runtime 90 seconds [ 194.106256][ T1296] ieee802154 phy0 wpan0: encryption failed: -22 [ 194.112637][ T1296] ieee802154 phy1 wpan1: encryption failed: -22 2025/12/18 23:29:50 executed programs: 2 [ 204.278119][ T5138] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 204.285983][ T5138] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 204.293435][ T5138] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 204.301729][ T5138] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 204.310318][ T5138] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 204.516911][ T6236] chnl_net:caif_netlink_parms(): no params data found [ 204.595167][ T6236] bridge0: port 1(bridge_slave_0) entered blocking state [ 204.602293][ T6236] bridge0: port 1(bridge_slave_0) entered disabled state [ 204.609667][ T6236] bridge_slave_0: entered allmulticast mode [ 204.616610][ T6236] bridge_slave_0: entered promiscuous mode [ 204.625490][ T6236] bridge0: port 2(bridge_slave_1) entered blocking state [ 204.633229][ T6236] bridge0: port 2(bridge_slave_1) entered disabled state [ 204.640551][ T6236] bridge_slave_1: entered allmulticast mode [ 204.648227][ T6236] bridge_slave_1: entered promiscuous mode [ 204.672160][ T6236] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 204.683317][ T6236] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 204.710314][ T6236] team0: Port device team_slave_0 added [ 204.717841][ T6236] team0: Port device team_slave_1 added [ 204.739329][ T6236] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 204.747296][ T6236] 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. [ 204.773549][ T6236] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 204.786167][ T6236] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 204.793131][ T6236] 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. [ 204.819169][ T6236] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 204.853046][ T6236] hsr_slave_0: entered promiscuous mode [ 204.859291][ T6236] hsr_slave_1: entered promiscuous mode [ 204.865385][ T6236] debugfs: 'hsr0' already exists in 'hsr' [ 204.871197][ T6236] Cannot create hsr debugfs directory [ 204.952018][ T6236] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 205.024216][ T6236] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 205.102370][ T6236] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 205.146716][ T6236] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 205.228677][ T6236] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 205.241740][ T6236] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 205.251058][ T6236] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 205.260585][ T6236] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 205.281693][ T6236] bridge0: port 2(bridge_slave_1) entered blocking state [ 205.288797][ T6236] bridge0: port 2(bridge_slave_1) entered forwarding state [ 205.296198][ T6236] bridge0: port 1(bridge_slave_0) entered blocking state [ 205.303267][ T6236] bridge0: port 1(bridge_slave_0) entered forwarding state [ 205.345978][ T6236] 8021q: adding VLAN 0 to HW filter on device bond0 [ 205.363391][ T2907] bridge0: port 1(bridge_slave_0) entered disabled state [ 205.371268][ T2907] bridge0: port 2(bridge_slave_1) entered disabled state [ 205.386725][ T6236] 8021q: adding VLAN 0 to HW filter on device team0 [ 205.398479][ T1001] bridge0: port 1(bridge_slave_0) entered blocking state [ 205.405609][ T1001] bridge0: port 1(bridge_slave_0) entered forwarding state [ 205.418094][ T2907] bridge0: port 2(bridge_slave_1) entered blocking state [ 205.425208][ T2907] bridge0: port 2(bridge_slave_1) entered forwarding state [ 205.552918][ T6236] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 205.588104][ T6236] veth0_vlan: entered promiscuous mode [ 205.598260][ T6236] veth1_vlan: entered promiscuous mode [ 205.620835][ T6236] veth0_macvtap: entered promiscuous mode [ 205.629402][ T6236] veth1_macvtap: entered promiscuous mode [ 205.646802][ T6236] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 205.660384][ T6236] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 205.672212][ T1001] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 205.681460][ T1001] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 205.692491][ T1001] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 205.702542][ T1001] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 206.344272][ T5138] Bluetooth: hci2: command tx timeout [ 208.423640][ T5138] Bluetooth: hci2: command tx timeout [ 210.503690][ T52] Bluetooth: hci2: command tx timeout [ 211.384320][ T11] block nbd0: Possible stuck request ffff888026630000: control (read@0,4096B). Runtime 120 seconds [ 211.553620][ T5138] Bluetooth: hci0: command 0x0406 tx timeout [ 212.583713][ T5138] Bluetooth: hci2: command tx timeout [ 241.464554][ T11] block nbd0: Possible stuck request ffff888026630000: control (read@0,4096B). Runtime 150 seconds [ 251.703819][ T31] INFO: task syz-executor.0:6068 blocked for more than 143 seconds. [ 251.711823][ T31] Not tainted syzkaller #0 [ 251.716851][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 251.725538][ T31] task:syz-executor.0 state:D stack:27656 pid:6068 tgid:6067 ppid:6010 task_flags:0x400140 flags:0x00080803 [ 251.737492][ T31] Call Trace: [ 251.740770][ T31] [ 251.743777][ T31] ? __schedule+0x10b9/0x6150 [ 251.748504][ T31] __schedule+0x1139/0x6150 [ 251.752995][ T31] ? __lock_acquire+0x436/0x2890 [ 251.758064][ T31] ? __pfx___schedule+0x10/0x10 [ 251.762919][ T31] ? find_held_lock+0x2b/0x80 [ 251.767653][ T31] ? schedule+0x2d7/0x3a0 [ 251.772001][ T31] schedule+0xe7/0x3a0 [ 251.776142][ T31] schedule_preempt_disabled+0x13/0x30 [ 251.781594][ T31] __mutex_lock+0xc69/0x1ca0 [ 251.786255][ T31] ? bdev_release+0x15a/0x6d0 [ 251.790962][ T31] ? __pfx___mutex_lock+0x10/0x10 [ 251.796035][ T31] ? find_held_lock+0x2b/0x80 [ 251.800717][ T31] ? do_raw_spin_unlock+0x172/0x230 [ 251.806006][ T31] ? bdev_release+0x15a/0x6d0 [ 251.810681][ T31] bdev_release+0x15a/0x6d0 [ 251.815208][ T31] ? __pfx_blkdev_release+0x10/0x10 [ 251.820409][ T31] blkdev_release+0x15/0x20 [ 251.824946][ T31] __fput+0x402/0xb70 [ 251.828923][ T31] task_work_run+0x150/0x240 [ 251.833548][ T31] ? __pfx_task_work_run+0x10/0x10 [ 251.838674][ T31] get_signal+0x1d0/0x26d0 [ 251.843087][ T31] ? __pfx_get_signal+0x10/0x10 [ 251.848238][ T31] ? kick_process+0xf6/0x1b0 [ 251.852924][ T31] ? task_work_add+0x1ee/0x380 [ 251.857743][ T31] arch_do_signal_or_restart+0x8f/0x7e0 [ 251.863298][ T31] ? __pfx_arch_do_signal_or_restart+0x10/0x10 [ 251.869573][ T31] ? selinux_file_ioctl+0x180/0x270 [ 251.874896][ T31] exit_to_user_mode_loop+0x8c/0x540 [ 251.880185][ T31] do_syscall_64+0x4ee/0xf80 [ 251.884806][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 251.890729][ T31] RIP: 0033:0x7feb6c07c859 [ 251.895355][ T31] RSP: 002b:00007feb6ce6c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 251.903790][ T31] RAX: 0000000000000000 RBX: 00007feb6c19bf80 RCX: 00007feb6c07c859 [ 251.911746][ T31] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003 [ 251.919780][ T31] RBP: 00007feb6c0d8ad0 R08: 0000000000000000 R09: 0000000000000000 [ 251.927781][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 251.935811][ T31] R13: 000000000000000b R14: 00007feb6c19bf80 R15: 00007ffca0ae54f8 [ 251.944089][ T31] [ 251.947124][ T31] [ 251.947124][ T31] Showing all locks held in the system: [ 251.954870][ T31] 1 lock held by khungtaskd/31: [ 251.959704][ T31] #0: ffffffff8e3c9620 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x36/0x1c0 [ 251.969582][ T31] 1 lock held by klogd/5176: [ 251.974272][ T31] #0: ffff8880b843ac98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 [ 251.984269][ T31] 2 locks held by getty/5579: [ 251.988930][ T31] #0: ffff88814d3920a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 [ 251.998697][ T31] #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41b/0x1510 [ 252.008851][ T31] 1 lock held by udevd/5995: [ 252.013420][ T31] #0: ffff888026516358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0x41a/0xe40 [ 252.022774][ T31] 1 lock held by syz-executor.0/6068: [ 252.028239][ T31] #0: ffff888026516358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x15a/0x6d0 [ 252.037982][ T31] 1 lock held by syz-executor.0/6227: [ 252.043328][ T31] #0: ffff888026516358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0x41a/0xe40 [ 252.052674][ T31] 1 lock held by syz-executor.0/6257: [ 252.058066][ T31] #0: ffff888026516358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0x41a/0xe40 [ 252.067415][ T31] [ 252.069729][ T31] ============================================= [ 252.069729][ T31] [ 252.078163][ T31] NMI backtrace for cpu 1 [ 252.078192][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 252.078211][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 252.078221][ T31] Call Trace: [ 252.078227][ T31] [ 252.078234][ T31] dump_stack_lvl+0x116/0x1f0 [ 252.078260][ T31] nmi_cpu_backtrace+0x27b/0x390 [ 252.078289][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 252.078310][ T31] nmi_trigger_cpumask_backtrace+0x29c/0x300 [ 252.078340][ T31] sys_info+0x133/0x180 [ 252.078362][ T31] watchdog+0xe66/0x1180 [ 252.078389][ T31] ? rcu_is_watching+0x12/0xc0 [ 252.078407][ T31] ? __pfx_watchdog+0x10/0x10 [ 252.078425][ T31] ? lockdep_hardirqs_on+0x7c/0x110 [ 252.078449][ T31] ? __kthread_parkme+0x19e/0x250 [ 252.078468][ T31] ? __pfx_watchdog+0x10/0x10 [ 252.078488][ T31] kthread+0x3c5/0x780 [ 252.078509][ T31] ? __pfx_kthread+0x10/0x10 [ 252.078532][ T31] ? rcu_is_watching+0x12/0xc0 [ 252.078549][ T31] ? __pfx_kthread+0x10/0x10 [ 252.078571][ T31] ret_from_fork+0x983/0xb10 [ 252.078592][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 252.078614][ T31] ? __switch_to+0x7af/0x10d0 [ 252.078632][ T31] ? __pfx_kthread+0x10/0x10 [ 252.078652][ T31] ret_from_fork_asm+0x1a/0x30 [ 252.078687][ T31] [ 252.078692][ T31] Sending NMI from CPU 1 to CPUs 0: [ 252.212529][ C0] NMI backtrace for cpu 0 [ 252.212544][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) [ 252.212562][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 252.212572][ C0] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ 252.212596][ C0] Code: c6 5f 02 c3 cc cc cc cc 0f 1f 00 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 13 49 12 00 fb f4 cc 35 03 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 [ 252.212611][ C0] RSP: 0018:ffffffff8e007df8 EFLAGS: 000002c6 [ 252.212624][ C0] RAX: 0000000000132a3f RBX: 0000000000000000 RCX: ffffffff8b7816d9 [ 252.212634][ C0] RDX: 0000000000000000 RSI: ffffffff8dacde18 RDI: ffffffff8bf2b380 [ 252.212644][ C0] RBP: fffffbfff1c12f68 R08: 0000000000000001 R09: ffffed101708673d [ 252.212653][ C0] R10: ffff8880b84339eb R11: ffffffff8e098670 R12: 0000000000000000 [ 252.212663][ C0] R13: ffffffff8e097b40 R14: ffffffff9088b3d0 R15: 0000000000000000 [ 252.212673][ C0] FS: 0000000000000000(0000) GS:ffff8881248f5000(0000) knlGS:0000000000000000 [ 252.212687][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 252.212697][ C0] CR2: 0000561fe132c168 CR3: 000000000e184000 CR4: 00000000003526f0 [ 252.212707][ C0] Call Trace: [ 252.212715][ C0] [ 252.212720][ C0] default_idle+0x13/0x20 [ 252.212741][ C0] default_idle_call+0x6c/0xb0 [ 252.212761][ C0] do_idle+0x38d/0x510 [ 252.212785][ C0] ? __pfx_do_idle+0x10/0x10 [ 252.212808][ C0] cpu_startup_entry+0x4f/0x60 [ 252.212829][ C0] rest_init+0x16b/0x2b0 [ 252.212849][ C0] ? acpi_subsystem_init+0x133/0x180 [ 252.212870][ C0] ? __pfx_x86_late_time_init+0x10/0x10 [ 252.212885][ C0] start_kernel+0x3ef/0x4d0 [ 252.212909][ C0] x86_64_start_reservations+0x18/0x30 [ 252.212932][ C0] x86_64_start_kernel+0x130/0x190 [ 252.212954][ C0] common_startup_64+0x13e/0x148 [ 252.212979][ C0] [ 252.253615][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 252.253634][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 252.253657][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 252.253667][ T31] Call Trace: [ 252.253675][ T31] [ 252.253683][ T31] dump_stack_lvl+0x3d/0x1f0 [ 252.253711][ T31] vpanic+0x640/0x6f0 [ 252.253734][ T31] panic+0xca/0xd0 [ 252.253752][ T31] ? __pfx_panic+0x10/0x10 [ 252.253769][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 252.253791][ T31] ? nmi_trigger_cpumask_backtrace+0x1b1/0x300 [ 252.253818][ T31] ? nmi_trigger_cpumask_backtrace+0x2be/0x300 [ 252.253846][ T31] ? watchdog+0xe83/0x1180 [ 252.253865][ T31] ? watchdog+0xe76/0x1180 [ 252.253885][ T31] watchdog+0xe94/0x1180 [ 252.253909][ T31] ? rcu_is_watching+0x12/0xc0 [ 252.253927][ T31] ? __pfx_watchdog+0x10/0x10 [ 252.253945][ T31] ? lockdep_hardirqs_on+0x7c/0x110 [ 252.253969][ T31] ? __kthread_parkme+0x19e/0x250 [ 252.253988][ T31] ? __pfx_watchdog+0x10/0x10 [ 252.254007][ T31] kthread+0x3c5/0x780 [ 252.254036][ T31] ? __pfx_kthread+0x10/0x10 [ 252.254058][ T31] ? rcu_is_watching+0x12/0xc0 [ 252.254074][ T31] ? __pfx_kthread+0x10/0x10 [ 252.254095][ T31] ret_from_fork+0x983/0xb10 [ 252.254116][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 252.254137][ T31] ? __switch_to+0x7af/0x10d0 [ 252.254159][ T31] ? __pfx_kthread+0x10/0x10 [ 252.254180][ T31] ret_from_fork_asm+0x1a/0x30 [ 252.254218][ T31] [ 252.545918][ T31] Kernel Offset: disabled [ 252.550240][ T31] Rebooting in 86400 seconds..