Warning: Permanently added '10.128.1.183' (ED25519) to the list of known hosts. 2026/04/23 01:30:57 ignoring optional flag "type"="gce" 2026/04/23 01:30:57 parsed 1 programs 2026/04/23 01:30:59 executed programs: 0 [ 95.292982][ T6024] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 95.362442][ T50] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 95.370011][ T50] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 95.378023][ T50] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 95.386093][ T50] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 95.393733][ T50] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 95.572535][ T6029] chnl_net:caif_netlink_parms(): no params data found [ 95.663836][ T6029] bridge0: port 1(bridge_slave_0) entered blocking state [ 95.671110][ T6029] bridge0: port 1(bridge_slave_0) entered disabled state [ 95.678698][ T6029] bridge_slave_0: entered allmulticast mode [ 95.686211][ T6029] bridge_slave_0: entered promiscuous mode [ 95.694248][ T6029] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.701847][ T6029] bridge0: port 2(bridge_slave_1) entered disabled state [ 95.709098][ T6029] bridge_slave_1: entered allmulticast mode [ 95.716532][ T6029] bridge_slave_1: entered promiscuous mode [ 95.751401][ T6029] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 95.763675][ T6029] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 95.802456][ T6029] team0: Port device team_slave_0 added [ 95.810979][ T6029] team0: Port device team_slave_1 added [ 95.842503][ T6029] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 95.849885][ T6029] 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. [ 95.875964][ T6029] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 95.888991][ T6029] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 95.897333][ T6029] 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. [ 95.923452][ T6029] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 95.973811][ T6029] hsr_slave_0: entered promiscuous mode [ 95.980270][ T6029] hsr_slave_1: entered promiscuous mode [ 96.496201][ T6029] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 96.509458][ T6029] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 96.517733][ T6029] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 96.533123][ T6029] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 96.541835][ T6029] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 96.555637][ T6029] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 96.563696][ T6029] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 96.575301][ T6029] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 96.679791][ T6029] 8021q: adding VLAN 0 to HW filter on device bond0 [ 96.708082][ T6029] 8021q: adding VLAN 0 to HW filter on device team0 [ 96.724097][ T113] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.731316][ T113] bridge0: port 1(bridge_slave_0) entered forwarding state [ 96.753389][ T113] bridge0: port 2(bridge_slave_1) entered blocking state [ 96.760601][ T113] bridge0: port 2(bridge_slave_1) entered forwarding state [ 97.049063][ T6029] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 97.114480][ T6029] veth0_vlan: entered promiscuous mode [ 97.146530][ T6029] veth1_vlan: entered promiscuous mode [ 97.188333][ T6029] veth0_macvtap: entered promiscuous mode [ 97.199514][ T6029] veth1_macvtap: entered promiscuous mode [ 97.224066][ T6029] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 97.243221][ T6029] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 97.260440][ T113] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.279783][ T113] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.299341][ T113] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.321475][ T113] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.476880][ T5156] Bluetooth: hci0: command tx timeout [ 97.497140][ T6087] nbd0: detected capacity change from 0 to 65538 [ 98.205606][ T6082] block nbd0: shutting down sockets [ 98.214182][ C1] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 98.223434][ C1] Buffer I/O error on dev nbd0, logical block 0, async page read [ 98.233044][ T6014] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 98.243148][ T6014] Buffer I/O error on dev nbd0, logical block 0, async page read [ 98.251671][ T6014] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 98.261459][ T6014] Buffer I/O error on dev nbd0, logical block 0, async page read [ 98.270075][ T6014] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 98.280647][ T6014] Buffer I/O error on dev nbd0, logical block 0, async page read [ 98.289263][ T6014] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 98.299678][ T6014] Buffer I/O error on dev nbd0, logical block 0, async page read [ 98.308208][ T6014] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 98.317624][ T6014] Buffer I/O error on dev nbd0, logical block 0, async page read [ 98.325852][ T6014] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 98.335177][ T6014] Buffer I/O error on dev nbd0, logical block 0, async page read [ 98.343099][ T6014] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 98.352587][ T6014] Buffer I/O error on dev nbd0, logical block 0, async page read [ 98.370300][ T6014] ldm_validate_partition_table(): Disk read failed. [ 98.377961][ T6014] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 98.388163][ T6014] Buffer I/O error on dev nbd0, logical block 0, async page read [ 98.396849][ T6014] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 98.407357][ T6014] Buffer I/O error on dev nbd0, logical block 0, async page read [ 98.415738][ T6014] Dev nbd0: unable to read RDB block 0 [ 98.422752][ T6014] nbd0: unable to read partition table [ 98.440890][ T6014] ldm_validate_partition_table(): Disk read failed. [ 98.456132][ T6014] Dev nbd0: unable to read RDB block 0 [ 98.475769][ T6014] nbd0: unable to read partition table [ 98.524326][ T6118] ldm_validate_partition_table(): Disk read failed. [ 98.533108][ T6118] Dev nbd0: unable to read RDB block 0 [ 98.539669][ T6118] nbd0: unable to read partition table [ 98.764618][ T6128] nbd0: detected capacity change from 0 to 65538 [ 99.450332][ T50] block nbd0: Receive control failed (result -104) [ 99.555120][ T50] Bluetooth: hci0: command tx timeout [ 101.635106][ T50] Bluetooth: hci0: command tx timeout [ 103.714679][ T50] Bluetooth: hci0: command tx timeout [ 128.916201][ T25] block nbd0: Possible stuck request ffff88802666ab80: control (read@0,4096B). Runtime 30 seconds [ 132.117970][ T1310] ieee802154 phy0 wpan0: encryption failed: -22 [ 132.124379][ T1310] ieee802154 phy1 wpan1: encryption failed: -22 2026/04/23 01:31:57 executed programs: 3 [ 154.625792][ T5156] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 154.633837][ T5156] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 154.641679][ T5156] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 154.650224][ T5156] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 154.658065][ T5156] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 154.844377][ T6234] chnl_net:caif_netlink_parms(): no params data found [ 154.928936][ T6234] bridge0: port 1(bridge_slave_0) entered blocking state [ 154.936306][ T6234] bridge0: port 1(bridge_slave_0) entered disabled state [ 154.943449][ T6234] bridge_slave_0: entered allmulticast mode [ 154.951503][ T6234] bridge_slave_0: entered promiscuous mode [ 154.959585][ T6234] bridge0: port 2(bridge_slave_1) entered blocking state [ 154.967065][ T6234] bridge0: port 2(bridge_slave_1) entered disabled state [ 154.974537][ T6234] bridge_slave_1: entered allmulticast mode [ 154.981939][ T6234] bridge_slave_1: entered promiscuous mode [ 155.017016][ T6234] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 155.028904][ T6234] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 155.066741][ T6234] team0: Port device team_slave_0 added [ 155.074758][ T6234] team0: Port device team_slave_1 added [ 155.108994][ T6234] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 155.116421][ T6234] 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. [ 155.142504][ T6234] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 155.156055][ T6234] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 155.163015][ T6234] 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. [ 155.189159][ T6234] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 155.239646][ T6234] hsr_slave_0: entered promiscuous mode [ 155.246144][ T6234] hsr_slave_1: entered promiscuous mode [ 155.252879][ T6234] debugfs: 'hsr0' already exists in 'hsr' [ 155.259330][ T6234] Cannot create hsr debugfs directory [ 155.383435][ T6234] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 155.438711][ T6234] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 155.517105][ T6234] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 155.590790][ T6234] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 155.724368][ T6234] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 155.734113][ T6234] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 155.742096][ T6234] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 155.752097][ T6234] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 155.760033][ T6234] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 155.769263][ T6234] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 155.777245][ T6234] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 155.787484][ T6234] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 155.868629][ T6234] 8021q: adding VLAN 0 to HW filter on device bond0 [ 155.889836][ T6234] 8021q: adding VLAN 0 to HW filter on device team0 [ 155.902591][ T147] bridge0: port 1(bridge_slave_0) entered blocking state [ 155.909744][ T147] bridge0: port 1(bridge_slave_0) entered forwarding state [ 155.926728][ T147] bridge0: port 2(bridge_slave_1) entered blocking state [ 155.933879][ T147] bridge0: port 2(bridge_slave_1) entered forwarding state [ 156.134074][ T6234] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 156.180536][ T6234] veth0_vlan: entered promiscuous mode [ 156.192488][ T6234] veth1_vlan: entered promiscuous mode [ 156.222888][ T6234] veth0_macvtap: entered promiscuous mode [ 156.234417][ T6234] veth1_macvtap: entered promiscuous mode [ 156.251705][ T6234] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 156.265932][ T6234] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 156.280073][ T147] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 156.290150][ T147] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 156.299739][ T147] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 156.310878][ T147] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 156.674659][ T50] Bluetooth: hci1: command tx timeout [ 158.754676][ T50] Bluetooth: hci1: command tx timeout [ 158.999033][ T25] block nbd0: Possible stuck request ffff88802666ab80: control (read@0,4096B). Runtime 60 seconds [ 159.384151][ T5205] udevd[5205]: worker [6014] /devices/virtual/block/nbd0 is taking a long time [ 160.834637][ T50] Bluetooth: hci1: command tx timeout [ 162.914665][ T50] Bluetooth: hci1: command tx timeout [ 189.074881][ T2274] block nbd0: Possible stuck request ffff88802666ab80: control (read@0,4096B). Runtime 90 seconds [ 193.569015][ T1310] ieee802154 phy0 wpan0: encryption failed: -22 [ 193.575531][ T1310] ieee802154 phy1 wpan1: encryption failed: -22 2026/04/23 01:32:55 executed programs: 4 [ 212.422101][ T5156] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 212.429842][ T5156] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 212.437654][ T5156] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 212.446925][ T5156] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 212.455421][ T5156] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 212.646033][ T6263] chnl_net:caif_netlink_parms(): no params data found [ 212.736698][ T6263] bridge0: port 1(bridge_slave_0) entered blocking state [ 212.743915][ T6263] bridge0: port 1(bridge_slave_0) entered disabled state [ 212.751680][ T6263] bridge_slave_0: entered allmulticast mode [ 212.759879][ T6263] bridge_slave_0: entered promiscuous mode [ 212.768158][ T6263] bridge0: port 2(bridge_slave_1) entered blocking state [ 212.775413][ T6263] bridge0: port 2(bridge_slave_1) entered disabled state [ 212.782592][ T6263] bridge_slave_1: entered allmulticast mode [ 212.790297][ T6263] bridge_slave_1: entered promiscuous mode [ 212.828577][ T6263] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 212.841142][ T6263] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 212.879017][ T6263] team0: Port device team_slave_0 added [ 212.888214][ T6263] team0: Port device team_slave_1 added [ 212.920493][ T6263] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 212.927872][ T6263] 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. [ 212.954813][ T6263] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 212.967197][ T6263] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 212.974123][ T6263] 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. [ 213.000378][ T6263] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 213.050261][ T6263] hsr_slave_0: entered promiscuous mode [ 213.056778][ T6263] hsr_slave_1: entered promiscuous mode [ 213.062877][ T6263] debugfs: 'hsr0' already exists in 'hsr' [ 213.069365][ T6263] Cannot create hsr debugfs directory [ 213.194448][ T6263] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 213.269637][ T6263] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 213.349479][ T6263] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 213.430454][ T6263] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 213.571539][ T6263] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 213.582376][ T6263] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 213.590629][ T6263] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 213.600718][ T6263] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 213.608606][ T6263] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 213.618436][ T6263] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 213.626216][ T6263] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 213.636609][ T6263] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 213.712658][ T6263] 8021q: adding VLAN 0 to HW filter on device bond0 [ 213.732479][ T6263] 8021q: adding VLAN 0 to HW filter on device team0 [ 213.748053][ T113] bridge0: port 1(bridge_slave_0) entered blocking state [ 213.755324][ T113] bridge0: port 1(bridge_slave_0) entered forwarding state [ 213.769571][ T147] bridge0: port 2(bridge_slave_1) entered blocking state [ 213.776813][ T147] bridge0: port 2(bridge_slave_1) entered forwarding state [ 213.971794][ T6263] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 214.017515][ T6263] veth0_vlan: entered promiscuous mode [ 214.030589][ T6263] veth1_vlan: entered promiscuous mode [ 214.064022][ T6263] veth0_macvtap: entered promiscuous mode [ 214.074268][ T6263] veth1_macvtap: entered promiscuous mode [ 214.094209][ T6263] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 214.108850][ T6263] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 214.122790][ T147] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 214.131643][ T147] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 214.141573][ T147] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 214.152800][ T147] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 214.514707][ T50] Bluetooth: hci2: command tx timeout [ 216.605470][ T50] Bluetooth: hci2: command tx timeout [ 218.674708][ T50] Bluetooth: hci2: command tx timeout [ 219.167233][ T2274] block nbd0: Possible stuck request ffff88802666ab80: control (read@0,4096B). Runtime 120 seconds [ 220.754666][ T5156] Bluetooth: hci2: command tx timeout [ 221.234630][ T5156] Bluetooth: hci0: command 0x0406 tx timeout [ 249.235748][ T25] block nbd0: Possible stuck request ffff88802666ab80: control (read@0,4096B). Runtime 150 seconds [ 253.076020][ T31] INFO: task syz-executor.0:6125 blocked for more than 143 seconds. [ 253.084284][ T31] Not tainted syzkaller #0 [ 253.089405][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 253.098322][ T31] task:syz-executor.0 state:D stack:28120 pid:6125 tgid:6123 ppid:6029 task_flags:0x400140 flags:0x00080803 [ 253.110427][ T31] Call Trace: [ 253.113729][ T31] [ 253.116720][ T31] __schedule+0x17b4/0x5680 [ 253.121267][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 253.126947][ T31] ? __lock_acquire+0x6b5/0x2cf0 [ 253.131973][ T31] ? __pfx___schedule+0x10/0x10 [ 253.136891][ T31] ? schedule+0x90/0x360 [ 253.141152][ T31] schedule+0x164/0x360 [ 253.145488][ T31] schedule_preempt_disabled+0x13/0x30 [ 253.151004][ T31] __mutex_lock+0x7f5/0x1550 [ 253.156000][ T31] ? __mutex_lock+0x606/0x1550 [ 253.160832][ T31] ? bdev_release+0x1a9/0x650 [ 253.165835][ T31] ? __pfx___mutex_lock+0x10/0x10 [ 253.170924][ T31] ? __asan_memset+0x22/0x50 [ 253.175740][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 253.181506][ T31] ? __fsnotify_parent+0x267/0x620 [ 253.186801][ T31] ? __pfx___fsnotify_parent+0x10/0x10 [ 253.192277][ T31] ? stack_trace_save+0xa9/0x100 [ 253.197390][ T31] bdev_release+0x1a9/0x650 [ 253.201949][ T31] ? __pfx_blkdev_release+0x10/0x10 [ 253.207351][ T31] blkdev_release+0x15/0x20 [ 253.212078][ T31] __fput+0x44f/0xa60 [ 253.216154][ T31] task_work_run+0x1d9/0x270 [ 253.221050][ T31] ? __pfx_task_work_run+0x10/0x10 [ 253.226312][ T31] get_signal+0x11eb/0x1330 [ 253.230844][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 253.236928][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 253.242597][ T31] arch_do_signal_or_restart+0xbc/0x830 [ 253.248391][ T31] ? __pfx_task_work_add+0x10/0x10 [ 253.253524][ T31] ? __pfx_arch_do_signal_or_restart+0x10/0x10 [ 253.259836][ T31] ? __fput_deferred+0x216/0x380 [ 253.264822][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 253.270909][ T31] exit_to_user_mode_loop+0x86/0x480 [ 253.276256][ T31] ? rcu_is_watching+0x15/0xb0 [ 253.281152][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 253.287331][ T31] do_syscall_64+0x33e/0xf80 [ 253.291963][ T31] ? trace_irq_disable+0x3b/0x140 [ 253.297048][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 253.302962][ T31] RIP: 0033:0x7fd22466d0b9 [ 253.307542][ T31] RSP: 002b:00007fd2253c4078 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 253.316047][ T31] RAX: 0000000000000000 RBX: 00007fd2247abf80 RCX: 00007fd22466d0b9 [ 253.324054][ T31] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003 [ 253.332270][ T31] RBP: 00007fd2246ce498 R08: 0000000000000000 R09: 0000000000000000 [ 253.340312][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 253.348745][ T31] R13: 000000000000000b R14: 00007fd2247abf80 R15: 00007fff52ac6088 [ 253.356812][ T31] [ 253.359895][ T31] [ 253.359895][ T31] Showing all locks held in the system: [ 253.368383][ T31] 1 lock held by khungtaskd/31: [ 253.373277][ T31] #0: ffffffff8e95cce0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 253.383293][ T31] 1 lock held by klogd/5194: [ 253.387979][ T31] #0: ffff8880b873aea0 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x31/0x150 [ 253.398013][ T31] 2 locks held by getty/5594: [ 253.402707][ T31] #0: ffff8880368070a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 253.412820][ T31] #1: ffffc9000322b2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13a0 [ 253.423186][ T31] 1 lock held by udevd/6014: [ 253.427859][ T31] #0: ffff888026611350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30 [ 253.437309][ T31] 1 lock held by syz-executor.0/6125: [ 253.442678][ T31] #0: ffff888026611350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x1a9/0x650 [ 253.452362][ T31] 1 lock held by syz-executor.0/6254: [ 253.457773][ T31] #0: ffff888026611350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30 [ 253.467242][ T31] 1 lock held by syz-executor.0/6283: [ 253.472625][ T31] #0: ffff888026611350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30 [ 253.482138][ T31] [ 253.484483][ T31] ============================================= [ 253.484483][ T31] [ 253.493002][ T31] NMI backtrace for cpu 0 [ 253.493022][ T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 253.493046][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 253.493070][ T31] Call Trace: [ 253.493079][ T31] [ 253.493089][ T31] dump_stack_lvl+0xe8/0x150 [ 253.493134][ T31] nmi_cpu_backtrace+0x274/0x2d0 [ 253.493161][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 253.493202][ T31] nmi_trigger_cpumask_backtrace+0x17a/0x300 [ 253.493231][ T31] sys_info+0x135/0x170 [ 253.493267][ T31] watchdog+0xfd3/0x1030 [ 253.493306][ T31] ? watchdog+0x1c9/0x1030 [ 253.493345][ T31] kthread+0x388/0x470 [ 253.493375][ T31] ? __pfx_watchdog+0x10/0x10 [ 253.493405][ T31] ? __pfx_kthread+0x10/0x10 [ 253.493436][ T31] ret_from_fork+0x514/0xb70 [ 253.493479][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 253.493517][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 253.493548][ T31] ? __switch_to+0xc79/0x1410 [ 253.493583][ T31] ? __pfx_kthread+0x10/0x10 [ 253.493613][ T31] ret_from_fork_asm+0x1a/0x30 [ 253.493657][ T31] [ 253.493666][ T31] Sending NMI from CPU 0 to CPUs 1: [ 253.609680][ C1] NMI backtrace for cpu 1 [ 253.609700][ C1] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT(full) [ 253.609725][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 253.609738][ C1] RIP: 0010:__lock_acquire+0x46/0x2cf0 [ 253.609780][ C1] Code: 24 e0 00 00 00 65 48 8b 05 7f f0 9e 11 48 89 44 24 08 31 ed 83 3d 29 e4 91 0e 00 0f 84 ef 13 00 00 45 89 cf 49 89 f9 48 8b 07 <48> 3d 80 93 04 94 0f 84 da 13 00 00 41 89 cd 41 89 d6 8b 0d 02 de [ 253.609798][ C1] RSP: 0018:ffffc90000a08750 EFLAGS: 00000002 [ 253.609817][ C1] RAX: ffffffff9a50a5c0 RBX: 0000000000000000 RCX: 0000000000000000 [ 253.609832][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880b8628f28 [ 253.609846][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8880b8628f28 [ 253.609860][ C1] R10: dffffc0000000000 R11: fffffbfff206701f R12: 0000000000000000 [ 253.609875][ C1] R13: ffff8880b8628f28 R14: 0000000000000001 R15: 0000000000000001 [ 253.609892][ C1] FS: 0000000000000000(0000) GS:ffff888125314000(0000) knlGS:0000000000000000 [ 253.609910][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 253.609925][ C1] CR2: 0000558246249168 CR3: 000000000e74a000 CR4: 0000000000350ef0 [ 253.609942][ C1] Call Trace: [ 253.609952][ C1] [ 253.609960][ C1] ? __lock_acquire+0x6b5/0x2cf0 [ 253.610003][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 253.610030][ C1] ? __lock_acquire+0x6b5/0x2cf0 [ 253.610069][ C1] ? cpu_stop_queue_work+0x77/0x2e0 [ 253.610103][ C1] lock_acquire+0x106/0x350 [ 253.610136][ C1] ? cpu_stop_queue_work+0x77/0x2e0 [ 253.610174][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 253.610200][ C1] ? rcu_is_watching+0x15/0xb0 [ 253.610225][ C1] _raw_spin_lock_irqsave+0x40/0x60 [ 253.610277][ C1] ? cpu_stop_queue_work+0x77/0x2e0 [ 253.610311][ C1] cpu_stop_queue_work+0x77/0x2e0 [ 253.610344][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 253.610370][ C1] ? stop_one_cpu_nowait+0x3c/0xc0 [ 253.610406][ C1] sched_balance_rq+0x548b/0x5a60 [ 253.610460][ C1] ? __pfx_sched_balance_rq+0x10/0x10 [ 253.610498][ C1] ? __lock_acquire+0x6b5/0x2cf0 [ 253.610546][ C1] ? rcu_is_watching+0x15/0xb0 [ 253.610568][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 253.610594][ C1] ? __update_load_avg_cfs_rq+0x6f6/0xbf0 [ 253.610630][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 253.610658][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 253.610685][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 253.610715][ C1] sched_balance_domains+0x40f/0x900 [ 253.610752][ C1] ? sched_balance_domains+0xf9/0x900 [ 253.610789][ C1] _nohz_idle_balance+0x4dc/0x760 [ 253.610822][ C1] handle_softirqs+0x22a/0x840 [ 253.610858][ C1] ? __irq_exit_rcu+0xca/0x220 [ 253.610896][ C1] __irq_exit_rcu+0xca/0x220 [ 253.610929][ C1] irq_exit_rcu+0x9/0x30 [ 253.610961][ C1] sysvec_call_function_single+0xa3/0xc0 [ 253.611006][ C1] [ 253.611014][ C1] [ 253.611022][ C1] asm_sysvec_call_function_single+0x1a/0x20 [ 253.611047][ C1] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ 253.611076][ C1] Code: 0b 71 02 e9 fe 9f 57 f5 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 13 c1 10 00 fb f4 d7 9f 57 f5 cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 [ 253.611093][ C1] RSP: 0018:ffffc90000197e20 EFLAGS: 00000246 [ 253.611111][ C1] RAX: 00000000000e50c3 RBX: ffffffff819aae9a RCX: 0000000080000001 [ 253.611127][ C1] RDX: 0000000000000001 RSI: ffffffff8dfd7f08 RDI: ffffffff8c289f60 [ 253.611142][ C1] RBP: ffffc90000197f10 R08: ffff8880b87339db R09: 1ffff110170e673b [ 253.611158][ C1] R10: dffffc0000000000 R11: ffffed10170e673c R12: 0000000000000001 [ 253.611173][ C1] R13: 1ffff11003b56000 R14: 0000000000000001 R15: 1ffff11003b56000 [ 253.611191][ C1] ? do_idle+0x36a/0x5f0 [ 253.611218][ C1] default_idle+0x9/0x20 [ 253.611258][ C1] default_idle_call+0x72/0xb0 [ 253.611292][ C1] do_idle+0x36a/0x5f0 [ 253.611312][ C1] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 253.611343][ C1] ? __pfx_do_idle+0x10/0x10 [ 253.611363][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 253.611391][ C1] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 253.611418][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 253.611446][ C1] cpu_startup_entry+0x43/0x60 [ 253.611468][ C1] start_secondary+0x101/0x110 [ 253.611500][ C1] common_startup_64+0x13e/0x147 [ 253.611537][ C1] [ 254.039943][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 254.046803][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 254.055898][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 254.065969][ T31] Call Trace: [ 254.069248][ T31] [ 254.072197][ T31] vpanic+0x56c/0xa60 [ 254.076174][ T31] ? __pfx___schedule+0x10/0x10 [ 254.081029][ T31] ? __pfx_vpanic+0x10/0x10 [ 254.085719][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 254.091370][ T31] ? nmi_trigger_cpumask_backtrace+0x1f4/0x300 [ 254.097537][ T31] panic+0xc5/0xd0 [ 254.101243][ T31] ? __pfx_panic+0x10/0x10 [ 254.105657][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 254.111278][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 254.116914][ T31] ? preempt_schedule_thunk+0x16/0x30 [ 254.122279][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 254.128003][ T31] ? nmi_trigger_cpumask_backtrace+0x2bb/0x300 [ 254.134201][ T31] watchdog+0x102c/0x1030 [ 254.138566][ T31] ? watchdog+0x1c9/0x1030 [ 254.143097][ T31] kthread+0x388/0x470 [ 254.147344][ T31] ? __pfx_watchdog+0x10/0x10 [ 254.152023][ T31] ? __pfx_kthread+0x10/0x10 [ 254.156661][ T31] ret_from_fork+0x514/0xb70 [ 254.161344][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 254.166470][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 254.172112][ T31] ? __switch_to+0xc79/0x1410 [ 254.176783][ T31] ? __pfx_kthread+0x10/0x10 [ 254.181380][ T31] ret_from_fork_asm+0x1a/0x30 [ 254.186266][ T31] [ 254.190324][ T31] Kernel Offset: disabled [ 254.194646][ T31] Rebooting in 86400 seconds..