Warning: Permanently added '10.128.1.81' (ED25519) to the list of known hosts.
2026/05/12 21:51:42 ignoring optional flag "type"="gce"
2026/05/12 21:51:42 parsed 1 programs
2026/05/12 21:51:42 executed programs: 0
[ 106.739052][ T60] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 106.743103][ T60] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 106.753999][ T60] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 106.758296][ T60] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 106.759482][ T60] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 107.462514][ T5840] bridge0: port 1(bridge_slave_0) entered blocking state
[ 107.462735][ T5840] bridge0: port 1(bridge_slave_0) entered disabled state
[ 107.463071][ T5840] bridge_slave_0: entered allmulticast mode
[ 107.464834][ T5840] bridge_slave_0: entered promiscuous mode
[ 107.471988][ T5840] bridge0: port 2(bridge_slave_1) entered blocking state
[ 107.472346][ T5840] bridge0: port 2(bridge_slave_1) entered disabled state
[ 107.472578][ T5840] bridge_slave_1: entered allmulticast mode
[ 107.475807][ T5840] bridge_slave_1: entered promiscuous mode
[ 107.618180][ T5840] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 107.623181][ T5840] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 107.754449][ T5840] team0: Port device team_slave_0 added
[ 107.757343][ T5840] team0: Port device team_slave_1 added
[ 107.893775][ T5840] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 107.893785][ T5840] 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.
[ 107.893800][ T5840] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 107.895959][ T5840] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 107.895968][ T5840] 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.
[ 107.895982][ T5840] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 108.069865][ T5840] hsr_slave_0: entered promiscuous mode
[ 108.071789][ T5840] hsr_slave_1: entered promiscuous mode
[ 108.790843][ T60] Bluetooth: hci0: command tx timeout
[ 110.072404][ T5840] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 110.117455][ T5840] 8021q: adding VLAN 0 to HW filter on device netdevsim0
[ 110.118709][ T5840] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 110.176743][ T5840] 8021q: adding VLAN 0 to HW filter on device netdevsim1
[ 110.178209][ T5840] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 110.217641][ T5840] 8021q: adding VLAN 0 to HW filter on device netdevsim2
[ 110.219142][ T5840] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 110.256714][ T5840] 8021q: adding VLAN 0 to HW filter on device netdevsim3
[ 110.469353][ T5840] 8021q: adding VLAN 0 to HW filter on device bond0
[ 110.515385][ T5840] 8021q: adding VLAN 0 to HW filter on device team0
[ 110.550136][ T1165] bridge0: port 1(bridge_slave_0) entered blocking state
[ 110.550386][ T1165] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 110.584614][ T1165] bridge0: port 2(bridge_slave_1) entered blocking state
[ 110.584851][ T1165] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 110.872093][ T60] Bluetooth: hci0: command tx timeout
[ 111.272810][ T5840] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 111.397774][ T5840] veth0_vlan: entered promiscuous mode
[ 111.434451][ T5840] veth1_vlan: entered promiscuous mode
[ 111.529531][ T5840] veth0_macvtap: entered promiscuous mode
[ 111.551698][ T5840] veth1_macvtap: entered promiscuous mode
[ 111.599881][ T5840] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 111.633489][ T5840] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 111.667070][ T3459] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 111.667394][ T3459] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 111.667432][ T3459] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 111.667466][ T3459] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 112.229463][ T5968] nbd0: detected capacity change from 0 to 502
[ 112.886135][ T60] block nbd0: Receive control failed (result -104)
[ 112.950837][ T60] Bluetooth: hci0: command tx timeout
[ 115.040763][ T60] Bluetooth: hci0: command tx timeout
[ 132.794604][ T1337] ieee802154 phy0 wpan0: encryption failed: -22
[ 132.794695][ T1337] ieee802154 phy1 wpan1: encryption failed: -22
[ 142.431741][ T64] block nbd0: Possible stuck request ffff888027705080: control (read@0,4096B). Runtime 30 seconds
2026/05/12 21:52:43 executed programs: 1
[ 169.128349][ T4928] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1
[ 169.129914][ T4928] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9
[ 169.131241][ T4928] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9
[ 169.155315][ T4928] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4
[ 169.156017][ T4928] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2
[ 169.842981][ T6054] bridge0: port 1(bridge_slave_0) entered blocking state
[ 169.843380][ T6054] bridge0: port 1(bridge_slave_0) entered disabled state
[ 169.843637][ T6054] bridge_slave_0: entered allmulticast mode
[ 169.846574][ T6054] bridge_slave_0: entered promiscuous mode
[ 169.852768][ T6054] bridge0: port 2(bridge_slave_1) entered blocking state
[ 169.853139][ T6054] bridge0: port 2(bridge_slave_1) entered disabled state
[ 169.853400][ T6054] bridge_slave_1: entered allmulticast mode
[ 169.856611][ T6054] bridge_slave_1: entered promiscuous mode
[ 170.027195][ T6054] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 170.030876][ T6054] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 170.169200][ T6054] team0: Port device team_slave_0 added
[ 170.173305][ T6054] team0: Port device team_slave_1 added
[ 170.303317][ T6054] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 170.303329][ T6054] 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.
[ 170.303343][ T6054] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 170.305243][ T6054] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 170.305252][ T6054] 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.
[ 170.305265][ T6054] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 170.490538][ T6054] hsr_slave_0: entered promiscuous mode
[ 170.492792][ T6054] hsr_slave_1: entered promiscuous mode
[ 170.494678][ T6054] debugfs: 'hsr0' already exists in 'hsr'
[ 170.494783][ T6054] Cannot create hsr debugfs directory
[ 171.177769][ T6054] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 171.192210][ T4928] Bluetooth: hci1: command tx timeout
[ 171.414677][ T6054] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 171.625560][ T6054] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 171.844035][ T6054] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 172.107475][ T6054] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 172.144796][ T6054] 8021q: adding VLAN 0 to HW filter on device netdevsim0
[ 172.145745][ T6054] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 172.169348][ T6054] 8021q: adding VLAN 0 to HW filter on device netdevsim1
[ 172.170271][ T6054] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 172.208665][ T6054] 8021q: adding VLAN 0 to HW filter on device netdevsim2
[ 172.209648][ T6054] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 172.243781][ T6054] 8021q: adding VLAN 0 to HW filter on device netdevsim3
[ 172.360179][ T6054] 8021q: adding VLAN 0 to HW filter on device bond0
[ 172.397482][ T6054] 8021q: adding VLAN 0 to HW filter on device team0
[ 172.416886][ T1165] bridge0: port 1(bridge_slave_0) entered blocking state
[ 172.416999][ T1165] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 172.446860][ T1165] bridge0: port 2(bridge_slave_1) entered blocking state
[ 172.446962][ T1165] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 172.513319][ T64] block nbd0: Possible stuck request ffff888027705080: control (read@0,4096B). Runtime 60 seconds
[ 172.856556][ T6054] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 172.916554][ T6054] veth0_vlan: entered promiscuous mode
[ 172.929530][ T6054] veth1_vlan: entered promiscuous mode
[ 172.990144][ T6054] veth0_macvtap: entered promiscuous mode
[ 173.000517][ T6054] veth1_macvtap: entered promiscuous mode
[ 173.032648][ T6054] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 173.049446][ T6054] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 173.067253][ T1165] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 173.070191][ T1165] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 173.070235][ T1165] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 173.070268][ T1165] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 173.272684][ T4928] Bluetooth: hci1: command tx timeout
[ 175.352005][ T4928] Bluetooth: hci1: command tx timeout
[ 176.373300][ T4978] udevd[4978]: worker [5883] /devices/virtual/block/nbd0 is taking a long time
[ 177.430871][ T4928] Bluetooth: hci1: command tx timeout
[ 194.246519][ T1337] ieee802154 phy0 wpan0: encryption failed: -22
[ 194.246587][ T1337] ieee802154 phy1 wpan1: encryption failed: -22
[ 202.591792][ T64] block nbd0: Possible stuck request ffff888027705080: control (read@0,4096B). Runtime 90 seconds
2026/05/12 21:53:45 executed programs: 2
[ 230.434034][ T5630] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1
[ 230.435654][ T5630] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9
[ 230.436429][ T5630] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9
[ 230.437589][ T5630] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4
[ 230.438301][ T5630] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2
[ 231.162346][ T6098] bridge0: port 1(bridge_slave_0) entered blocking state
[ 231.162541][ T6098] bridge0: port 1(bridge_slave_0) entered disabled state
[ 231.162700][ T6098] bridge_slave_0: entered allmulticast mode
[ 231.164534][ T6098] bridge_slave_0: entered promiscuous mode
[ 231.171049][ T6098] bridge0: port 2(bridge_slave_1) entered blocking state
[ 231.171410][ T6098] bridge0: port 2(bridge_slave_1) entered disabled state
[ 231.171666][ T6098] bridge_slave_1: entered allmulticast mode
[ 231.175159][ T6098] bridge_slave_1: entered promiscuous mode
[ 231.307387][ T6098] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 231.313079][ T6098] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 231.494791][ T6098] team0: Port device team_slave_0 added
[ 231.497695][ T6098] team0: Port device team_slave_1 added
[ 231.623616][ T6098] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 231.623627][ T6098] 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.
[ 231.623640][ T6098] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 231.625574][ T6098] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 231.625582][ T6098] 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.
[ 231.625596][ T6098] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 231.800410][ T6098] hsr_slave_0: entered promiscuous mode
[ 231.803673][ T6098] hsr_slave_1: entered promiscuous mode
[ 231.805542][ T6098] debugfs: 'hsr0' already exists in 'hsr'
[ 231.805564][ T6098] Cannot create hsr debugfs directory
[ 232.156103][ T5630] Bluetooth: hci0: command 0x0406 tx timeout
[ 232.497267][ T6098] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 232.560897][ T60] Bluetooth: hci2: command tx timeout
[ 232.671688][ T64] block nbd0: Possible stuck request ffff888027705080: control (read@0,4096B). Runtime 120 seconds
[ 232.747875][ T6098] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 232.977588][ T6098] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 233.212605][ T6098] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 233.457225][ T6098] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 233.487924][ T6098] 8021q: adding VLAN 0 to HW filter on device netdevsim0
[ 233.488821][ T6098] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 233.510159][ T6098] 8021q: adding VLAN 0 to HW filter on device netdevsim1
[ 233.514381][ T6098] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 233.543828][ T6098] 8021q: adding VLAN 0 to HW filter on device netdevsim2
[ 233.544692][ T6098] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 233.587562][ T6098] 8021q: adding VLAN 0 to HW filter on device netdevsim3
[ 233.682891][ T6098] 8021q: adding VLAN 0 to HW filter on device bond0
[ 233.734549][ T6098] 8021q: adding VLAN 0 to HW filter on device team0
[ 233.749259][ T3459] bridge0: port 1(bridge_slave_0) entered blocking state
[ 233.749450][ T3459] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 233.776925][ T1165] bridge0: port 2(bridge_slave_1) entered blocking state
[ 233.777085][ T1165] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 234.148401][ T6098] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 234.210180][ T6098] veth0_vlan: entered promiscuous mode
[ 234.222535][ T6098] veth1_vlan: entered promiscuous mode
[ 234.269632][ T6098] veth0_macvtap: entered promiscuous mode
[ 234.278127][ T6098] veth1_macvtap: entered promiscuous mode
[ 234.301384][ T6098] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 234.329287][ T6098] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 234.346988][ T1184] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 234.347032][ T1184] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 234.347065][ T1184] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 234.347097][ T1184] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 234.637046][ T60] Bluetooth: hci2: command tx timeout
[ 236.710803][ T60] Bluetooth: hci2: command tx timeout
[ 238.790894][ T60] Bluetooth: hci2: command tx timeout
[ 255.672980][ T1337] ieee802154 phy0 wpan0: encryption failed: -22
[ 255.673073][ T1337] ieee802154 phy1 wpan1: encryption failed: -22
[ 262.751467][ T64] block nbd0: Possible stuck request ffff888027705080: control (read@0,4096B). Runtime 150 seconds
[ 263.352289][ T39] INFO: task syz-executor.0:5968 blocked for more than 143 seconds.
[ 263.352319][ T39] Not tainted syzkaller #0
[ 263.352329][ T39] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 263.352341][ T39] task:syz-executor.0 state:D stack:28264 pid:5968 tgid:5965 ppid:5840 task_flags:0x400140 flags:0x00080802
[ 263.352444][ T39] Call Trace:
[ 263.352451][ T39]
[ 263.352465][ T39] __schedule+0x16f9/0x5500
[ 263.352518][ T39] ? trace_irq_disable+0x3b/0x140
[ 263.352551][ T39] ? __pfx___schedule+0x10/0x10
[ 263.352567][ T39] ? rt_mutex_slowlock_block+0x2e9/0x680
[ 263.352605][ T39] rt_mutex_schedule+0x76/0xf0
[ 263.352630][ T39] rt_mutex_slowlock_block+0x508/0x680
[ 263.352667][ T39] ? rt_mutex_slowlock_block+0x2e9/0x680
[ 263.352688][ T39] rt_mutex_slowlock+0x2dc/0x780
[ 263.352705][ T39] ? rt_mutex_slowlock+0x1fd/0x780
[ 263.352729][ T39] ? __pfx_rt_mutex_slowlock+0x10/0x10
[ 263.352744][ T39] ? do_syscall_64+0x15f/0xf80
[ 263.352761][ T39] ? bdev_release+0x1af/0x660
[ 263.352780][ T39] ? bdev_release+0x1af/0x660
[ 263.352789][ T39] mutex_lock_nested+0x168/0x1d0
[ 263.352809][ T39] ? __pfx___fsnotify_parent+0x10/0x10
[ 263.352826][ T39] bdev_release+0x1af/0x660
[ 263.352841][ T39] ? __pfx_blkdev_release+0x10/0x10
[ 263.352859][ T39] blkdev_release+0x15/0x20
[ 263.352871][ T39] __fput+0x461/0xa70
[ 263.352895][ T39] task_work_run+0x1d9/0x270
[ 263.352910][ T39] ? __pfx_task_work_run+0x10/0x10
[ 263.352931][ T39] ? __fput_deferred+0x253/0x3e0
[ 263.352961][ T39] exit_to_user_mode_loop+0xf3/0x4d0
[ 263.352981][ T39] ? rcu_is_watching+0x15/0xb0
[ 263.352995][ T39] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 263.353019][ T39] do_syscall_64+0x33e/0xf80
[ 263.353036][ T39] ? trace_irq_disable+0x3b/0x140
[ 263.353052][ T39] ? clear_bhb_loop+0x40/0x90
[ 263.353068][ T39] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 263.353079][ T39] RIP: 0033:0x7f8ebb4bb0e9
[ 263.353102][ T39] RSP: 002b:00007f8ebac25078 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 263.353114][ T39] RAX: 0000000000000000 RBX: 00007f8ebb5ec050 RCX: 00007f8ebb4bb0e9
[ 263.353121][ T39] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
[ 263.353127][ T39] RBP: 00007f8ebb53040f R08: 0000000000000000 R09: 0000000000000000
[ 263.353134][ T39] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 263.353140][ T39] R13: 000000000000006e R14: 00007f8ebb5ec050 R15: 00007ffff485f9e8
[ 263.353155][ T39]
[ 263.353175][ T39]
[ 263.353175][ T39] Showing all locks held in the system:
[ 263.353185][ T39] 1 lock held by khungtaskd/39:
[ 263.353194][ T39] #0: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[ 263.353257][ T39] 2 locks held by getty/5369:
[ 263.353263][ T39] #0: ffff8880344890a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[ 263.353308][ T39] #1: ffffc90003cc62e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x462/0x13a0
[ 263.353334][ T39] 1 lock held by udevd/5883:
[ 263.353339][ T39] #0: ffff8880276374c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xcc0
[ 263.353364][ T39] 1 lock held by syz-executor.0/5968:
[ 263.353369][ T39] #0: ffff8880276374c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x1af/0x660
[ 263.353394][ T39] 1 lock held by syz-executor.0/6089:
[ 263.353400][ T39] #0: ffff8880276374c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xcc0
[ 263.353423][ T39] 1 lock held by syz-executor.0/6133:
[ 263.353434][ T39] #0: ffff8880276374c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xcc0
[ 263.353457][ T39]
[ 263.353460][ T39] =============================================
[ 263.353460][ T39]
[ 263.353470][ T39] NMI backtrace for cpu 1
[ 263.353485][ T39] CPU: 1 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 263.353500][ T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 263.353506][ T39] Call Trace:
[ 263.353510][ T39]
[ 263.353514][ T39] dump_stack_lvl+0xe8/0x150
[ 263.353527][ T39] nmi_cpu_backtrace+0x274/0x2d0
[ 263.353544][ T39] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 263.353557][ T39] nmi_trigger_cpumask_backtrace+0x17a/0x300
[ 263.353574][ T39] sys_info+0x135/0x170
[ 263.353589][ T39] watchdog+0xfd3/0x1030
[ 263.353608][ T39] ? watchdog+0x1c9/0x1030
[ 263.353625][ T39] kthread+0x388/0x470
[ 263.353637][ T39] ? __pfx_watchdog+0x10/0x10
[ 263.353650][ T39] ? __pfx_kthread+0x10/0x10
[ 263.353661][ T39] ret_from_fork+0x514/0xb70
[ 263.353675][ T39] ? __pfx_ret_from_fork+0x10/0x10
[ 263.353687][ T39] ? __switch_to+0xc79/0x1410
[ 263.353699][ T39] ? __pfx_kthread+0x10/0x10
[ 263.353710][ T39] ret_from_fork_asm+0x1a/0x30
[ 263.353731][ T39]
[ 263.353734][ T39] Sending NMI from CPU 1 to CPUs 0:
[ 263.353780][ C0] NMI backtrace for cpu 0
[ 263.353793][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 263.353809][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 263.353817][ C0] RIP: 0010:pv_native_safe_halt+0xf/0x20
[ 263.353838][ C0] Code: 6b 64 02 e9 83 cc 03 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 43 eb 20 00 fb f4 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90
[ 263.353850][ C0] RSP: 0018:ffffffff8dc07dc0 EFLAGS: 00000242
[ 263.353870][ C0] RAX: 00000000000df513 RBX: ffffffff81997aaa RCX: 0000000080000001
[ 263.353884][ C0] RDX: 0000000000000001 RSI: ffffffff8d626ff0 RDI: ffffffff8ba85b60
[ 263.353895][ C0] RBP: ffffffff8dc07eb0 R08: ffff8880b8633d1b R09: 1ffff110170c67a3
[ 263.353906][ C0] R10: dffffc0000000000 R11: ffffed10170c67a4 R12: 0000000000000000
[ 263.353916][ C0] R13: 1ffffffff1b9fdd8 R14: 0000000000000000 R15: 1ffffffff1b9fdd8
[ 263.353931][ C0] FS: 0000000000000000(0000) GS:ffff888125f1f000(0000) knlGS:0000000000000000
[ 263.353944][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 263.353954][ C0] CR2: 0000561ec9fe3660 CR3: 0000000029c84000 CR4: 00000000003526f0
[ 263.353968][ C0] Call Trace:
[ 263.353974][ C0]
[ 263.353979][ C0] default_idle+0x9/0x20
[ 263.353998][ C0] default_idle_call+0x72/0xb0
[ 263.354017][ C0] do_idle+0x36a/0x5f0
[ 263.354037][ C0] ? lock_acquire+0x106/0x350
[ 263.354053][ C0] ? __pfx_do_idle+0x10/0x10
[ 263.354075][ C0] cpu_startup_entry+0x43/0x60
[ 263.354093][ C0] rest_init+0x2de/0x300
[ 263.354114][ C0] start_kernel+0x38a/0x3e0
[ 263.354134][ C0] x86_64_start_reservations+0x24/0x30
[ 263.354156][ C0] x86_64_start_kernel+0x143/0x1c0
[ 263.354177][ C0] common_startup_64+0x13e/0x157
[ 263.354206][ C0]
[ 263.354757][ T39] Kernel panic - not syncing: hung_task: blocked tasks
[ 263.354771][ T39] CPU: 1 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 263.354782][ T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 263.354788][ T39] Call Trace:
[ 263.354792][ T39]
[ 263.354796][ T39] vpanic+0x56c/0xa60
[ 263.354811][ T39] ? __pfx___schedule+0x10/0x10
[ 263.354822][ T39] ? __pfx_vpanic+0x10/0x10
[ 263.354840][ T39] panic+0xc5/0xd0
[ 263.354853][ T39] ? __pfx_panic+0x10/0x10
[ 263.354870][ T39] ? preempt_schedule_thunk+0x16/0x40
[ 263.354883][ T39] ? nmi_trigger_cpumask_backtrace+0x2bb/0x300
[ 263.354901][ T39] watchdog+0x102c/0x1030
[ 263.354919][ T39] ? watchdog+0x1c9/0x1030
[ 263.354939][ T39] kthread+0x388/0x470
[ 263.354950][ T39] ? __pfx_watchdog+0x10/0x10
[ 263.354963][ T39] ? __pfx_kthread+0x10/0x10
[ 263.354975][ T39] ret_from_fork+0x514/0xb70
[ 263.354988][ T39] ? __pfx_ret_from_fork+0x10/0x10
[ 263.355001][ T39] ? __switch_to+0xc79/0x1410
[ 263.355012][ T39] ? __pfx_kthread+0x10/0x10
[ 263.355023][ T39] ret_from_fork_asm+0x1a/0x30
[ 263.355044][ T39]
[ 263.355432][ T39] Kernel Offset: disabled