Warning: Permanently added '10.128.1.254' (ED25519) to the list of known hosts. 2026/02/09 01:08:13 ignoring optional flag "type"="gce" 2026/02/09 01:08:13 parsed 1 programs 2026/02/09 01:08:14 executed programs: 0 [ 107.773630][ T5827] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 107.781329][ T5827] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 107.789128][ T5827] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 107.797094][ T5827] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 107.805046][ T5827] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 107.958845][ T6014] chnl_net:caif_netlink_parms(): no params data found [ 108.042213][ T6014] bridge0: port 1(bridge_slave_0) entered blocking state [ 108.049588][ T6014] bridge0: port 1(bridge_slave_0) entered disabled state [ 108.056917][ T6014] bridge_slave_0: entered allmulticast mode [ 108.064466][ T6014] bridge_slave_0: entered promiscuous mode [ 108.073101][ T6014] bridge0: port 2(bridge_slave_1) entered blocking state [ 108.080470][ T6014] bridge0: port 2(bridge_slave_1) entered disabled state [ 108.087597][ T6014] bridge_slave_1: entered allmulticast mode [ 108.095222][ T6014] bridge_slave_1: entered promiscuous mode [ 108.131975][ T6014] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 108.144860][ T6014] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 108.181137][ T6014] team0: Port device team_slave_0 added [ 108.189929][ T6014] team0: Port device team_slave_1 added [ 108.225407][ T6014] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 108.232833][ T6014] 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. [ 108.259179][ T6014] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 108.271408][ T6014] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 108.280021][ T6014] 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. [ 108.306257][ T6014] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 108.349317][ T6014] hsr_slave_0: entered promiscuous mode [ 108.355737][ T6014] hsr_slave_1: entered promiscuous mode [ 108.486815][ T6014] bridge0: port 2(bridge_slave_1) entered blocking state [ 108.494007][ T6014] bridge0: port 2(bridge_slave_1) entered forwarding state [ 108.501497][ T6014] bridge0: port 1(bridge_slave_0) entered blocking state [ 108.508705][ T6014] bridge0: port 1(bridge_slave_0) entered forwarding state [ 108.564142][ T6014] 8021q: adding VLAN 0 to HW filter on device bond0 [ 108.582233][ T1146] bridge0: port 1(bridge_slave_0) entered disabled state [ 108.591063][ T1146] bridge0: port 2(bridge_slave_1) entered disabled state [ 108.606147][ T6014] 8021q: adding VLAN 0 to HW filter on device team0 [ 108.621112][ T3442] bridge0: port 1(bridge_slave_0) entered blocking state [ 108.628254][ T3442] bridge0: port 1(bridge_slave_0) entered forwarding state [ 108.642195][ T1146] bridge0: port 2(bridge_slave_1) entered blocking state [ 108.649383][ T1146] bridge0: port 2(bridge_slave_1) entered forwarding state [ 108.717331][ T6014] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 109.152999][ T6014] veth0_vlan: entered promiscuous mode [ 109.165019][ T6014] veth1_vlan: entered promiscuous mode [ 109.196682][ T6014] veth0_macvtap: entered promiscuous mode [ 109.207153][ T6014] veth1_macvtap: entered promiscuous mode [ 109.225609][ T6014] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 109.240187][ T6014] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 109.387968][ T6043] nbd0: detected capacity change from 0 to 8388608 [ 109.848545][ T5140] Bluetooth: hci0: command tx timeout [ 110.137240][ T5827] block nbd0: Receive control failed (result -104) [ 110.137819][ T6043] block nbd0: shutting down sockets [ 110.150160][ C1] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 [ 110.159832][ C1] Buffer I/O error on dev nbd0, logical block 0, async page read [ 110.167734][ T6017] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 [ 110.177453][ T6017] Buffer I/O error on dev nbd0, logical block 0, async page read [ 110.185584][ T6017] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 [ 110.195134][ T6017] Buffer I/O error on dev nbd0, logical block 0, async page read [ 110.203058][ T6017] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 [ 110.212753][ T6017] Buffer I/O error on dev nbd0, logical block 0, async page read [ 110.221131][ T6017] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 [ 110.230690][ T6017] Buffer I/O error on dev nbd0, logical block 0, async page read [ 110.238571][ T6017] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 [ 110.248198][ T6017] Buffer I/O error on dev nbd0, logical block 0, async page read [ 110.256069][ T6017] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 [ 110.265561][ T6017] Buffer I/O error on dev nbd0, logical block 0, async page read [ 110.273571][ T6017] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 [ 110.283352][ T6017] Buffer I/O error on dev nbd0, logical block 0, async page read [ 110.291140][ T6017] ldm_validate_partition_table(): Disk read failed. [ 110.297968][ T6017] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 [ 110.307436][ T6017] Buffer I/O error on dev nbd0, logical block 0, async page read [ 110.315284][ T6017] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 [ 110.324796][ T6017] Buffer I/O error on dev nbd0, logical block 0, async page read [ 110.333860][ T6017] Dev nbd0: unable to read RDB block 0 [ 110.339991][ T6017] nbd0: unable to read partition table [ 110.351968][ T6017] ldm_validate_partition_table(): Disk read failed. [ 110.359254][ T6017] Dev nbd0: unable to read RDB block 0 [ 110.368728][ T6017] nbd0: unable to read partition table [ 110.394307][ T6045] ldm_validate_partition_table(): Disk read failed. [ 110.401603][ T6045] Dev nbd0: unable to read RDB block 0 [ 110.407501][ T6045] nbd0: unable to read partition table [ 110.470414][ T6017] ldm_validate_partition_table(): Disk read failed. [ 110.507918][ T6045] block nbd0: Device being setup by another task [ 110.514969][ T6017] Dev nbd0: unable to read RDB block 0 [ 110.521034][ T6017] nbd0: unable to read partition table [ 110.529905][ T6017] ldm_validate_partition_table(): Disk read failed. [ 110.536665][ T6017] Dev nbd0: unable to read RDB block 0 [ 110.542395][ T6017] nbd0: unable to read partition table [ 110.628185][ T6047] nbd0: detected capacity change from 0 to 8388608 [ 111.404836][ T5827] block nbd0: Receive control failed (result -104) [ 111.411511][ T6047] block nbd0: shutting down sockets [ 111.417370][ T6017] ldm_validate_partition_table(): Disk read failed. [ 111.424196][ T6017] Dev nbd0: unable to read RDB block 0 [ 111.430194][ T6017] nbd0: unable to read partition table [ 111.441135][ T6017] ldm_validate_partition_table(): Disk read failed. [ 111.449670][ T6017] Dev nbd0: unable to read RDB block 0 [ 111.460495][ T6017] nbd0: unable to read partition table [ 111.473450][ T6049] ldm_validate_partition_table(): Disk read failed. [ 111.483197][ T6049] Dev nbd0: unable to read RDB block 0 [ 111.489062][ T6049] nbd0: unable to read partition table [ 111.578408][ T6049] block nbd0: Device being setup by another task [ 111.586082][ T6017] ldm_validate_partition_table(): Disk read failed. [ 111.593599][ T6017] Dev nbd0: unable to read RDB block 0 [ 111.599721][ T6017] nbd0: unable to read partition table [ 111.610245][ T6017] ldm_validate_partition_table(): Disk read failed. [ 111.627546][ T6017] Dev nbd0: unable to read RDB block 0 [ 111.634016][ T6017] nbd0: unable to read partition table [ 111.641296][ T6051] ldm_validate_partition_table(): Disk read failed. [ 111.648534][ T6051] Dev nbd0: unable to read RDB block 0 [ 111.654269][ T6051] nbd0: unable to read partition table 2026/02/09 01:08:19 executed programs: 5 [ 111.768201][ T6051] block nbd0: Device being setup by another task [ 111.775078][ T6017] ldm_validate_partition_table(): Disk read failed. [ 111.781906][ T6017] Dev nbd0: unable to read RDB block 0 [ 111.787584][ T6017] nbd0: unable to read partition table [ 111.799966][ T6017] ldm_validate_partition_table(): Disk read failed. [ 111.814060][ T6017] Dev nbd0: unable to read RDB block 0 [ 111.820624][ T6017] nbd0: unable to read partition table [ 111.928436][ T5140] Bluetooth: hci0: command tx timeout [ 111.947857][ T6055] nbd0: detected capacity change from 0 to 8388608 [ 112.650349][ T5827] block nbd0: Receive control failed (result -104) [ 112.657701][ T6055] block nbd0: shutting down sockets [ 112.668002][ T6017] ldm_validate_partition_table(): Disk read failed. [ 112.674722][ T6017] Dev nbd0: unable to read RDB block 0 [ 112.680962][ T6017] nbd0: unable to read partition table [ 112.691069][ T6017] ldm_validate_partition_table(): Disk read failed. [ 112.698957][ T6017] Dev nbd0: unable to read RDB block 0 [ 112.704680][ T6017] nbd0: unable to read partition table [ 112.718173][ T6057] ldm_validate_partition_table(): Disk read failed. [ 112.727123][ T6057] Dev nbd0: unable to read RDB block 0 [ 112.733105][ T6057] nbd0: unable to read partition table [ 112.818072][ T6057] block nbd0: Device being setup by another task [ 112.826612][ T6017] ldm_validate_partition_table(): Disk read failed. [ 112.833483][ T6017] Dev nbd0: unable to read RDB block 0 [ 112.839192][ T6017] nbd0: unable to read partition table [ 112.847633][ T6017] ldm_validate_partition_table(): Disk read failed. [ 112.854486][ T6017] Dev nbd0: unable to read RDB block 0 [ 112.861289][ T6017] nbd0: unable to read partition table [ 112.968163][ T6059] nbd0: detected capacity change from 0 to 8388608 [ 113.721883][ T5827] block nbd0: Receive control failed (result -104) [ 114.008604][ T5827] Bluetooth: hci0: command tx timeout [ 116.087955][ T5827] Bluetooth: hci0: command tx timeout [ 137.291688][ T1295] ieee802154 phy0 wpan0: encryption failed: -22 [ 137.299710][ T1295] ieee802154 phy1 wpan1: encryption failed: -22 [ 143.049248][ T121] block nbd0: Possible stuck request ffff8880251e2600: control (read@0,4096B). Runtime 30 seconds 2026/02/09 01:09:15 executed programs: 8 [ 169.938066][ T5140] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 169.945599][ T5140] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 169.953756][ T5140] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 169.961753][ T5140] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 169.969726][ T5140] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 170.124135][ T6067] chnl_net:caif_netlink_parms(): no params data found [ 170.206630][ T6067] bridge0: port 1(bridge_slave_0) entered blocking state [ 170.213998][ T6067] bridge0: port 1(bridge_slave_0) entered disabled state [ 170.221542][ T6067] bridge_slave_0: entered allmulticast mode [ 170.229108][ T6067] bridge_slave_0: entered promiscuous mode [ 170.237469][ T6067] bridge0: port 2(bridge_slave_1) entered blocking state [ 170.245472][ T6067] bridge0: port 2(bridge_slave_1) entered disabled state [ 170.252892][ T6067] bridge_slave_1: entered allmulticast mode [ 170.260454][ T6067] bridge_slave_1: entered promiscuous mode [ 170.296189][ T6067] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 170.308470][ T6067] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 170.345770][ T6067] team0: Port device team_slave_0 added [ 170.354062][ T6067] team0: Port device team_slave_1 added [ 170.386271][ T6067] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 170.393391][ T6067] 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. [ 170.419613][ T6067] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 170.431932][ T6067] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 170.438962][ T6067] 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. [ 170.465826][ T6067] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 170.509931][ T6067] hsr_slave_0: entered promiscuous mode [ 170.516337][ T6067] hsr_slave_1: entered promiscuous mode [ 170.522646][ T6067] debugfs: 'hsr0' already exists in 'hsr' [ 170.528731][ T6067] Cannot create hsr debugfs directory [ 170.661611][ T6067] bridge0: port 2(bridge_slave_1) entered blocking state [ 170.668967][ T6067] bridge0: port 2(bridge_slave_1) entered forwarding state [ 170.676371][ T6067] bridge0: port 1(bridge_slave_0) entered blocking state [ 170.683632][ T6067] bridge0: port 1(bridge_slave_0) entered forwarding state [ 170.741772][ T6067] 8021q: adding VLAN 0 to HW filter on device bond0 [ 170.760713][ T78] bridge0: port 1(bridge_slave_0) entered disabled state [ 170.770912][ T78] bridge0: port 2(bridge_slave_1) entered disabled state [ 170.785464][ T6067] 8021q: adding VLAN 0 to HW filter on device team0 [ 170.799774][ T1146] bridge0: port 1(bridge_slave_0) entered blocking state [ 170.806884][ T1146] bridge0: port 1(bridge_slave_0) entered forwarding state [ 170.825828][ T3442] bridge0: port 2(bridge_slave_1) entered blocking state [ 170.833056][ T3442] bridge0: port 2(bridge_slave_1) entered forwarding state [ 170.900072][ T6067] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 171.325775][ T6067] veth0_vlan: entered promiscuous mode [ 171.336878][ T6067] veth1_vlan: entered promiscuous mode [ 171.372541][ T6067] veth0_macvtap: entered promiscuous mode [ 171.381826][ T6067] veth1_macvtap: entered promiscuous mode [ 171.401175][ T6067] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 171.414676][ T6067] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 172.018316][ T5827] Bluetooth: hci1: command tx timeout [ 173.128116][ T121] block nbd0: Possible stuck request ffff8880251e2600: control (read@0,4096B). Runtime 60 seconds [ 174.087887][ T5827] Bluetooth: hci1: command tx timeout [ 174.500821][ T5189] udevd[5189]: worker [6017] /devices/virtual/block/nbd0 is taking a long time [ 176.168451][ T5827] Bluetooth: hci1: command tx timeout [ 178.248036][ T5827] Bluetooth: hci1: command tx timeout [ 198.731616][ T1295] ieee802154 phy0 wpan0: encryption failed: -22 [ 198.739091][ T1295] ieee802154 phy1 wpan1: encryption failed: -22 [ 203.208975][ T121] block nbd0: Possible stuck request ffff8880251e2600: control (read@0,4096B). Runtime 90 seconds 2026/02/09 01:10:13 executed programs: 9 [ 228.574145][ T5140] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 228.582071][ T5140] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 228.590326][ T5140] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 228.598454][ T5140] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 228.606108][ T5140] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 228.761119][ T6103] chnl_net:caif_netlink_parms(): no params data found [ 228.844519][ T6103] bridge0: port 1(bridge_slave_0) entered blocking state [ 228.852237][ T6103] bridge0: port 1(bridge_slave_0) entered disabled state [ 228.859910][ T6103] bridge_slave_0: entered allmulticast mode [ 228.867258][ T6103] bridge_slave_0: entered promiscuous mode [ 228.875637][ T6103] bridge0: port 2(bridge_slave_1) entered blocking state [ 228.882921][ T6103] bridge0: port 2(bridge_slave_1) entered disabled state [ 228.890846][ T6103] bridge_slave_1: entered allmulticast mode [ 228.899040][ T6103] bridge_slave_1: entered promiscuous mode [ 228.936240][ T6103] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 228.948590][ T6103] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 228.986536][ T6103] team0: Port device team_slave_0 added [ 228.994880][ T6103] team0: Port device team_slave_1 added [ 229.029136][ T6103] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 229.036093][ T6103] 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. [ 229.062448][ T6103] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 229.074782][ T6103] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 229.082121][ T6103] 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. [ 229.108185][ T6103] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 229.152878][ T6103] hsr_slave_0: entered promiscuous mode [ 229.159666][ T6103] hsr_slave_1: entered promiscuous mode [ 229.165802][ T6103] debugfs: 'hsr0' already exists in 'hsr' [ 229.171598][ T6103] Cannot create hsr debugfs directory [ 229.306220][ T6103] bridge0: port 2(bridge_slave_1) entered blocking state [ 229.313406][ T6103] bridge0: port 2(bridge_slave_1) entered forwarding state [ 229.321021][ T6103] bridge0: port 1(bridge_slave_0) entered blocking state [ 229.328164][ T6103] bridge0: port 1(bridge_slave_0) entered forwarding state [ 229.384166][ T6103] 8021q: adding VLAN 0 to HW filter on device bond0 [ 229.401457][ T1146] bridge0: port 1(bridge_slave_0) entered disabled state [ 229.410982][ T1146] bridge0: port 2(bridge_slave_1) entered disabled state [ 229.426305][ T6103] 8021q: adding VLAN 0 to HW filter on device team0 [ 229.440902][ T3442] bridge0: port 1(bridge_slave_0) entered blocking state [ 229.448056][ T3442] bridge0: port 1(bridge_slave_0) entered forwarding state [ 229.463882][ T78] bridge0: port 2(bridge_slave_1) entered blocking state [ 229.471028][ T78] bridge0: port 2(bridge_slave_1) entered forwarding state [ 229.539807][ T6103] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 229.960445][ T6103] veth0_vlan: entered promiscuous mode [ 229.971797][ T6103] veth1_vlan: entered promiscuous mode [ 230.003781][ T6103] veth0_macvtap: entered promiscuous mode [ 230.013633][ T6103] veth1_macvtap: entered promiscuous mode [ 230.032470][ T6103] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 230.047904][ T6103] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 230.647897][ T5827] Bluetooth: hci2: command tx timeout [ 231.527801][ T5827] Bluetooth: hci0: command 0x0406 tx timeout [ 232.737860][ T5140] Bluetooth: hci2: command tx timeout [ 233.289966][ T121] block nbd0: Possible stuck request ffff8880251e2600: control (read@0,4096B). Runtime 120 seconds [ 234.808875][ T5140] Bluetooth: hci2: command tx timeout [ 236.887983][ T5140] Bluetooth: hci2: command tx timeout [ 260.172336][ T1295] ieee802154 phy0 wpan0: encryption failed: -22 [ 260.179663][ T1295] ieee802154 phy1 wpan1: encryption failed: -22 [ 263.368525][ T121] block nbd0: Possible stuck request ffff8880251e2600: control (read@0,4096B). Runtime 150 seconds [ 267.208336][ T32] INFO: task syz-executor.0:6059 blocked for more than 143 seconds. [ 267.216471][ T32] Not tainted syzkaller #0 [ 267.221515][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 267.230342][ T32] task:syz-executor.0 state:D stack:28184 pid:6059 tgid:6058 ppid:6014 task_flags:0x400140 flags:0x00080803 [ 267.242501][ T32] Call Trace: [ 267.245806][ T32] [ 267.248953][ T32] __schedule+0x1522/0x51d0 [ 267.253527][ T32] ? __pfx___schedule+0x10/0x10 [ 267.258536][ T32] ? schedule+0x90/0x360 [ 267.262792][ T32] schedule+0x164/0x360 [ 267.266940][ T32] schedule_preempt_disabled+0x13/0x30 [ 267.272516][ T32] __mutex_lock+0x7fe/0x1300 [ 267.277127][ T32] ? __mutex_lock+0x5ac/0x1300 [ 267.282031][ T32] ? bdev_release+0x1a9/0x650 [ 267.286733][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 267.291850][ T32] ? __asan_memset+0x22/0x50 [ 267.296459][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 267.302123][ T32] ? __fsnotify_parent+0x267/0x620 [ 267.307251][ T32] ? __pfx___fsnotify_parent+0x10/0x10 [ 267.312935][ T32] ? stack_trace_save+0xa9/0x100 [ 267.317966][ T32] bdev_release+0x1a9/0x650 [ 267.322767][ T32] ? __pfx_blkdev_release+0x10/0x10 [ 267.328013][ T32] blkdev_release+0x15/0x20 [ 267.332526][ T32] __fput+0x44f/0xa70 [ 267.336510][ T32] task_work_run+0x1d9/0x270 [ 267.341150][ T32] ? __pfx_task_work_run+0x10/0x10 [ 267.346283][ T32] get_signal+0x11eb/0x1330 [ 267.350844][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 267.356491][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 267.362201][ T32] arch_do_signal_or_restart+0xbc/0x830 [ 267.367814][ T32] ? __pfx_task_work_add+0x10/0x10 [ 267.372958][ T32] ? __pfx_arch_do_signal_or_restart+0x10/0x10 [ 267.379284][ T32] ? __fput_deferred+0x216/0x380 [ 267.384385][ T32] ? __pfx___fput_deferred+0x10/0x10 [ 267.389729][ T32] exit_to_user_mode_loop+0x86/0x480 [ 267.395037][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 267.400733][ T32] ? rcu_is_watching+0x15/0xb0 [ 267.405504][ T32] do_syscall_64+0x2b7/0xf80 [ 267.410149][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 267.416407][ T32] ? trace_irq_disable+0x37/0x100 [ 267.421699][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 267.427641][ T32] RIP: 0033:0x7efe89c69a69 [ 267.432109][ T32] RSP: 002b:00007efe8ad060b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 267.440668][ T32] RAX: 0000000000000000 RBX: 00007efe89d8bf80 RCX: 00007efe89c69a69 [ 267.448753][ T32] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003 [ 267.456730][ T32] RBP: 00007efe89cdf018 R08: 0000000000000000 R09: 0000000000000000 [ 267.464855][ T32] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 267.472914][ T32] R13: 000000000000000b R14: 00007efe89d8bf80 R15: 00007fff0fd8be68 [ 267.481062][ T32] [ 267.484102][ T32] [ 267.484102][ T32] Showing all locks held in the system: [ 267.491853][ T32] 1 lock held by khungtaskd/32: [ 267.496701][ T32] #0: ffffffff8e55a360 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 267.506659][ T32] 5 locks held by kworker/u8:5/1146: [ 267.512006][ T32] 2 locks held by getty/5578: [ 267.516691][ T32] #0: ffff88814e4dd0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 267.526567][ T32] #1: ffffc900036bb2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13c0 [ 267.537007][ T32] 1 lock held by udevd/6017: [ 267.541725][ T32] #0: ffff888025174358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30 [ 267.551044][ T32] 1 lock held by syz-executor.0/6059: [ 267.556398][ T32] #0: ffff888025174358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x1a9/0x650 [ 267.566040][ T32] 1 lock held by syz-executor.0/6094: [ 267.571446][ T32] #0: ffff888025174358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30 [ 267.580773][ T32] 1 lock held by syz-executor.0/6129: [ 267.586138][ T32] #0: ffff888025174358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30 [ 267.595513][ T32] [ 267.597880][ T32] ============================================= [ 267.597880][ T32] [ 267.606277][ T32] NMI backtrace for cpu 1 [ 267.606291][ T32] CPU: 1 UID: 0 PID: 32 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 267.606311][ T32] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 [ 267.606321][ T32] Call Trace: [ 267.606329][ T32] [ 267.606337][ T32] dump_stack_lvl+0xe8/0x150 [ 267.606365][ T32] nmi_cpu_backtrace+0x274/0x2d0 [ 267.606393][ T32] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 267.606424][ T32] nmi_trigger_cpumask_backtrace+0x17a/0x300 [ 267.606453][ T32] sys_info+0x135/0x170 [ 267.606475][ T32] watchdog+0xf90/0xfe0 [ 267.606499][ T32] ? watchdog+0x209/0xfe0 [ 267.606525][ T32] kthread+0x726/0x8b0 [ 267.606549][ T32] ? __pfx_watchdog+0x10/0x10 [ 267.606568][ T32] ? __pfx_kthread+0x10/0x10 [ 267.606591][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 267.606618][ T32] ? _raw_spin_unlock_irq+0x23/0x50 [ 267.606635][ T32] ? __pfx_kthread+0x10/0x10 [ 267.606656][ T32] ret_from_fork+0x51b/0xa40 [ 267.606676][ T32] ? __pfx_ret_from_fork+0x10/0x10 [ 267.606691][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 267.606711][ T32] ? __switch_to+0xc82/0x1410 [ 267.606740][ T32] ? __pfx_kthread+0x10/0x10 [ 267.606762][ T32] ret_from_fork_asm+0x1a/0x30 [ 267.606800][ T32] [ 267.606807][ T32] Sending NMI from CPU 1 to CPUs 0: [ 267.737174][ C0] NMI backtrace for cpu 0 [ 267.737194][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) [ 267.737218][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 [ 267.737232][ C0] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ 267.737274][ C0] Code: 98 60 02 e9 fe 25 79 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 53 49 12 00 fb f4 d7 25 79 f5 cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 [ 267.737292][ C0] RSP: 0018:ffffffff8e207dc0 EFLAGS: 00000246 [ 267.737312][ C0] RAX: 000000000014f0ed RBX: ffffffff8199570d RCX: 0000000080000001 [ 267.737328][ C0] RDX: 0000000000000001 RSI: ffffffff8dcc9ce4 RDI: ffffffff8c073b00 [ 267.737344][ C0] RBP: ffffffff8e207eb0 R08: ffff8880b86336db R09: 1ffff110170c66db [ 267.737361][ C0] R10: dffffc0000000000 R11: ffffed10170c66dc R12: ffffffff8fef2070 [ 267.737378][ C0] R13: 1ffffffff1c52a78 R14: 0000000000000000 R15: 0000000000000000 [ 267.737395][ C0] FS: 0000000000000000(0000) GS:ffff8881256f3000(0000) knlGS:0000000000000000 [ 267.737413][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 267.737428][ C0] CR2: 00005637a15d5168 CR3: 000000000e346000 CR4: 0000000000350ef0 [ 267.737446][ C0] Call Trace: [ 267.737455][ C0] [ 267.737463][ C0] default_idle+0x9/0x20 [ 267.737492][ C0] default_idle_call+0x72/0xb0 [ 267.737523][ C0] do_idle+0x1bd/0x500 [ 267.737545][ C0] ? lock_acquire+0x106/0x330 [ 267.737579][ C0] ? __pfx_do_idle+0x10/0x10 [ 267.737599][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 267.737634][ C0] cpu_startup_entry+0x43/0x60 [ 267.737655][ C0] rest_init+0x2de/0x300 [ 267.737691][ C0] start_kernel+0x380/0x3d0 [ 267.737731][ C0] x86_64_start_reservations+0x24/0x30 [ 267.737759][ C0] x86_64_start_kernel+0x143/0x1c0 [ 267.737786][ C0] common_startup_64+0x13e/0x147 [ 267.737828][ C0] [ 267.738156][ T32] Kernel panic - not syncing: hung_task: blocked tasks [ 267.738174][ T32] CPU: 1 UID: 0 PID: 32 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 267.738200][ T32] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 [ 267.738215][ T32] Call Trace: [ 267.738225][ T32] [ 267.738236][ T32] vpanic+0x1e0/0x670 [ 267.738274][ T32] panic+0xc5/0xd0 [ 267.738304][ T32] ? __pfx_panic+0x10/0x10 [ 267.738333][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 267.738365][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 267.738394][ T32] ? preempt_schedule_thunk+0x16/0x30 [ 267.738440][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 267.738469][ T32] ? nmi_trigger_cpumask_backtrace+0x2bb/0x300 [ 267.738511][ T32] watchdog+0xfda/0xfe0 [ 267.738545][ T32] ? watchdog+0x209/0xfe0 [ 267.738580][ T32] kthread+0x726/0x8b0 [ 267.738622][ T32] ? __pfx_watchdog+0x10/0x10 [ 267.738648][ T32] ? __pfx_kthread+0x10/0x10 [ 267.738675][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 267.738709][ T32] ? _raw_spin_unlock_irq+0x23/0x50 [ 267.738733][ T32] ? __pfx_kthread+0x10/0x10 [ 267.738764][ T32] ret_from_fork+0x51b/0xa40 [ 267.738792][ T32] ? __pfx_ret_from_fork+0x10/0x10 [ 267.738815][ T32] ? srso_alias_return_thunk+0x5/0xfbef5 [ 267.738844][ T32] ? __switch_to+0xc82/0x1410 [ 267.738882][ T32] ? __pfx_kthread+0x10/0x10 [ 267.738912][ T32] ret_from_fork_asm+0x1a/0x30 [ 267.738965][ T32] [ 268.066100][ T32] Kernel Offset: disabled [ 268.070484][ T32] Rebooting in 86400 seconds..