[ 86.127816][ T10] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.0.165' (ED25519) to the list of known hosts.
2026/08/26 08:17:15 ignoring optional flag "type"="gce"
2026/08/26 08:17:15 parsed 1 programs
2026/08/26 08:17:17 executed programs: 0
[ 93.400218][ T5777] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 93.497933][ T52] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 93.515062][ T52] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 93.523104][ T52] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 93.532002][ T52] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 93.541556][ T52] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 94.171610][ T5794] bridge0: port 1(bridge_slave_0) entered blocking state
[ 94.171820][ T5794] bridge0: port 1(bridge_slave_0) entered disabled state
[ 94.172197][ T5794] bridge_slave_0: entered allmulticast mode
[ 94.174680][ T5794] bridge_slave_0: entered promiscuous mode
[ 94.178814][ T5794] bridge0: port 2(bridge_slave_1) entered blocking state
[ 94.178985][ T5794] bridge0: port 2(bridge_slave_1) entered disabled state
[ 94.179103][ T5794] bridge_slave_1: entered allmulticast mode
[ 94.181130][ T5794] bridge_slave_1: entered promiscuous mode
[ 94.241005][ T5794] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 94.244882][ T5794] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 94.286676][ T5794] team0: Port device team_slave_0 added
[ 94.289729][ T5794] team0: Port device team_slave_1 added
[ 94.330689][ T5794] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 94.338318][ T5794] 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.
[ 94.338350][ T5794] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 94.377481][ T5794] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 94.377516][ T5794] 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.
[ 94.377550][ T5794] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 94.460428][ T5794] hsr_slave_0: entered promiscuous mode
[ 94.461622][ T5794] hsr_slave_1: entered promiscuous mode
[ 95.007763][ T5794] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 95.018629][ T5794] 8021q: adding VLAN 0 to HW filter on device netdevsim0
[ 95.020218][ T5794] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 95.033262][ T5794] 8021q: adding VLAN 0 to HW filter on device netdevsim1
[ 95.034196][ T5794] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 95.049887][ T5794] 8021q: adding VLAN 0 to HW filter on device netdevsim2
[ 95.051345][ T5794] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 95.062951][ T5794] 8021q: adding VLAN 0 to HW filter on device netdevsim3
[ 95.187981][ T5794] 8021q: adding VLAN 0 to HW filter on device bond0
[ 95.209011][ T5794] 8021q: adding VLAN 0 to HW filter on device team0
[ 95.217440][ T12] bridge0: port 1(bridge_slave_0) entered blocking state
[ 95.217654][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 95.229828][ T12] bridge0: port 2(bridge_slave_1) entered blocking state
[ 95.229937][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 95.636741][ T52] Bluetooth: hci0: command tx timeout
[ 95.785241][ T5794] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 95.839897][ T5794] veth0_vlan: entered promiscuous mode
[ 95.848562][ T5794] veth1_vlan: entered promiscuous mode
[ 95.884009][ T5794] veth0_macvtap: entered promiscuous mode
[ 95.889686][ T5794] veth1_macvtap: entered promiscuous mode
[ 95.913361][ T5794] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 95.925577][ T5794] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 95.952183][ T1158] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 95.952416][ T1158] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 95.952459][ T1158] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 95.967172][ T12] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 96.105259][ T5873] nbd0: detected capacity change from 0 to 131072
[ 96.886292][ T52] block nbd0: Receive control failed (result -104)
[ 97.715972][ T52] Bluetooth: hci0: command tx timeout
[ 99.796505][ T52] Bluetooth: hci0: command tx timeout
[ 101.875971][ T52] Bluetooth: hci0: command tx timeout
[ 126.438759][ T26] block nbd0: Possible stuck request ffff888026cb7000: control (read@0,4096B). Runtime 30 seconds
[ 132.198101][ T1304] ieee802154 phy0 wpan0: encryption failed: -22
[ 132.198200][ T1304] ieee802154 phy1 wpan1: encryption failed: -22
2026/08/26 08:18:15 executed programs: 1
[ 152.125354][ T4924] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1
[ 152.127913][ T4924] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9
[ 152.128403][ T4924] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9
[ 152.129592][ T4924] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4
[ 152.130280][ T4924] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2
[ 152.677407][ T5973] bridge0: port 1(bridge_slave_0) entered blocking state
[ 152.677609][ T5973] bridge0: port 1(bridge_slave_0) entered disabled state
[ 152.678046][ T5973] bridge_slave_0: entered allmulticast mode
[ 152.680095][ T5973] bridge_slave_0: entered promiscuous mode
[ 152.684124][ T5973] bridge0: port 2(bridge_slave_1) entered blocking state
[ 152.684240][ T5973] bridge0: port 2(bridge_slave_1) entered disabled state
[ 152.684369][ T5973] bridge_slave_1: entered allmulticast mode
[ 152.686921][ T5973] bridge_slave_1: entered promiscuous mode
[ 152.743678][ T5973] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 152.748776][ T5973] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 152.782046][ T5973] team0: Port device team_slave_0 added
[ 152.785074][ T5973] team0: Port device team_slave_1 added
[ 152.816443][ T5973] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 152.816490][ T5973] 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.
[ 152.816953][ T5973] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 152.820200][ T5973] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 152.820216][ T5973] 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.
[ 152.820244][ T5973] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 152.911838][ T5973] hsr_slave_0: entered promiscuous mode
[ 152.912908][ T5973] hsr_slave_1: entered promiscuous mode
[ 152.913720][ T5973] debugfs: 'hsr0' already exists in 'hsr'
[ 152.913778][ T5973] Cannot create hsr debugfs directory
[ 153.048783][ T5973] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 153.122666][ T5973] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 153.199720][ T5973] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 153.274609][ T5973] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 153.348939][ T5973] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 153.359074][ T5973] 8021q: adding VLAN 0 to HW filter on device netdevsim0
[ 153.360179][ T5973] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 153.374513][ T5973] 8021q: adding VLAN 0 to HW filter on device netdevsim1
[ 153.382519][ T5973] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 153.391885][ T5973] 8021q: adding VLAN 0 to HW filter on device netdevsim2
[ 153.393192][ T5973] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 153.403836][ T5973] 8021q: adding VLAN 0 to HW filter on device netdevsim3
[ 153.426073][ T5973] bridge0: port 2(bridge_slave_1) entered blocking state
[ 153.426216][ T5973] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 153.426512][ T5973] bridge0: port 1(bridge_slave_0) entered blocking state
[ 153.426651][ T5973] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 153.491455][ T5973] 8021q: adding VLAN 0 to HW filter on device bond0
[ 153.503457][ T632] bridge0: port 1(bridge_slave_0) entered disabled state
[ 153.511067][ T632] bridge0: port 2(bridge_slave_1) entered disabled state
[ 153.528943][ T5973] 8021q: adding VLAN 0 to HW filter on device team0
[ 153.537746][ T12] bridge0: port 1(bridge_slave_0) entered blocking state
[ 153.537868][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 153.557022][ T12] bridge0: port 2(bridge_slave_1) entered blocking state
[ 153.557137][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 153.935509][ T5973] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 153.980966][ T5973] veth0_vlan: entered promiscuous mode
[ 153.988977][ T5973] veth1_vlan: entered promiscuous mode
[ 154.018294][ T5973] veth0_macvtap: entered promiscuous mode
[ 154.027191][ T5973] veth1_macvtap: entered promiscuous mode
[ 154.043074][ T5973] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 154.056606][ T5973] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 154.096111][ T12] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 154.096196][ T12] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 154.096587][ T12] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 154.096637][ T12] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 154.196578][ T52] Bluetooth: hci1: command tx timeout
[ 156.275991][ T52] Bluetooth: hci1: command tx timeout
[ 156.517578][ T26] block nbd0: Possible stuck request ffff888026cb7000: control (read@0,4096B). Runtime 60 seconds
[ 158.356178][ T52] Bluetooth: hci1: command tx timeout
[ 160.435949][ T52] Bluetooth: hci1: command tx timeout
[ 186.597819][ T2063] block nbd0: Possible stuck request ffff888026cb7000: control (read@0,4096B). Runtime 90 seconds
[ 193.637452][ T1304] ieee802154 phy0 wpan0: encryption failed: -22
[ 193.637537][ T1304] ieee802154 phy1 wpan1: encryption failed: -22
2026/08/26 08:19:13 executed programs: 2
[ 210.215054][ T4924] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1
[ 210.217062][ T4924] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9
[ 210.217962][ T4924] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9
[ 210.219157][ T4924] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4
[ 210.220027][ T4924] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2
[ 210.784896][ T6016] bridge0: port 1(bridge_slave_0) entered blocking state
[ 210.785116][ T6016] bridge0: port 1(bridge_slave_0) entered disabled state
[ 210.785540][ T6016] bridge_slave_0: entered allmulticast mode
[ 210.788549][ T6016] bridge_slave_0: entered promiscuous mode
[ 210.791736][ T6016] bridge0: port 2(bridge_slave_1) entered blocking state
[ 210.791919][ T6016] bridge0: port 2(bridge_slave_1) entered disabled state
[ 210.792073][ T6016] bridge_slave_1: entered allmulticast mode
[ 210.794039][ T6016] bridge_slave_1: entered promiscuous mode
[ 210.849851][ T6016] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 210.853794][ T6016] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 210.892205][ T6016] team0: Port device team_slave_0 added
[ 210.895645][ T6016] team0: Port device team_slave_1 added
[ 210.927920][ T6016] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 210.927957][ T6016] 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.
[ 210.927986][ T6016] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 210.930039][ T6016] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 210.930055][ T6016] 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.
[ 210.930083][ T6016] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 211.023622][ T6016] hsr_slave_0: entered promiscuous mode
[ 211.024802][ T6016] hsr_slave_1: entered promiscuous mode
[ 211.025552][ T6016] debugfs: 'hsr0' already exists in 'hsr'
[ 211.025573][ T6016] Cannot create hsr debugfs directory
[ 211.165405][ T6016] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 211.243279][ T6016] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 211.319584][ T6016] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 211.381679][ T6016] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 211.492637][ T6016] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 211.502841][ T6016] 8021q: adding VLAN 0 to HW filter on device netdevsim0
[ 211.504049][ T6016] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 211.514776][ T6016] 8021q: adding VLAN 0 to HW filter on device netdevsim1
[ 211.515909][ T6016] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 211.521381][ T6016] 8021q: adding VLAN 0 to HW filter on device netdevsim2
[ 211.522919][ T6016] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 211.530640][ T6016] 8021q: adding VLAN 0 to HW filter on device netdevsim3
[ 211.561086][ T6016] bridge0: port 2(bridge_slave_1) entered blocking state
[ 211.561365][ T6016] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 211.561723][ T6016] bridge0: port 1(bridge_slave_0) entered blocking state
[ 211.561850][ T6016] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 211.628599][ T6016] 8021q: adding VLAN 0 to HW filter on device bond0
[ 211.638335][ T632] bridge0: port 1(bridge_slave_0) entered disabled state
[ 211.645855][ T632] bridge0: port 2(bridge_slave_1) entered disabled state
[ 211.666114][ T6016] 8021q: adding VLAN 0 to HW filter on device team0
[ 211.674970][ T632] bridge0: port 1(bridge_slave_0) entered blocking state
[ 211.675096][ T632] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 211.687655][ T632] bridge0: port 2(bridge_slave_1) entered blocking state
[ 211.687768][ T632] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 212.092868][ T6016] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 212.148536][ T6016] veth0_vlan: entered promiscuous mode
[ 212.158677][ T6016] veth1_vlan: entered promiscuous mode
[ 212.183997][ T6016] veth0_macvtap: entered promiscuous mode
[ 212.192253][ T6016] veth1_macvtap: entered promiscuous mode
[ 212.210226][ T6016] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 212.222913][ T6016] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 212.230916][ T1158] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 212.231133][ T1158] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 212.251510][ T12] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 212.251977][ T12] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 212.278179][ T52] Bluetooth: hci2: command tx timeout
[ 214.355984][ T4924] Bluetooth: hci2: command tx timeout
[ 216.197571][ T4924] Bluetooth: hci0: command 0x0406 tx timeout
[ 216.436146][ T52] Bluetooth: hci2: command tx timeout
[ 216.677118][ T26] block nbd0: Possible stuck request ffff888026cb7000: control (read@0,4096B). Runtime 120 seconds
[ 218.516212][ T52] Bluetooth: hci2: command tx timeout
[ 246.756198][ T2063] block nbd0: Possible stuck request ffff888026cb7000: control (read@0,4096B). Runtime 150 seconds
[ 255.077452][ T1304] ieee802154 phy0 wpan0: encryption failed: -22
[ 255.077540][ T1304] ieee802154 phy1 wpan1: encryption failed: -22
[ 257.636291][ T31] INFO: task udevd:4974 blocked for more than 143 seconds.
** replaying previous printk message **
[ 257.636291][ T31] INFO: task udevd:4974 blocked for more than 143 seconds.
[ 257.637823][ T31] Not tainted syzkaller #0
[ 257.637839][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 257.637851][ T31] task:udevd state:D stack:25488 pid:4974 tgid:4974 ppid:1 task_flags:0x400140 flags:0x00080000
[ 257.637925][ T31] Call Trace:
[ 257.637935][ T31]
[ 257.637950][ T31] __schedule+0x17d4/0x5820
[ 257.638055][ T31] ? __pfx___schedule+0x10/0x10
[ 257.638106][ T31] ? schedule+0x90/0x2b0
[ 257.638149][ T31] schedule+0x164/0x2b0
[ 257.638191][ T31] schedule_preempt_disabled+0x13/0x30
[ 257.638215][ T31] __mutex_lock+0x7c1/0x1550
[ 257.638249][ T31] ? __mutex_lock+0x5d4/0x1550
[ 257.638289][ T31] ? bdev_open+0xde/0xd70
[ 257.638328][ T31] ? __pfx___mutex_lock+0x10/0x10
[ 257.638363][ T31] ? srso_alias_return_thunk+0x5/0xfbef5
[ 257.638400][ T31] ? srso_alias_return_thunk+0x5/0xfbef5
[ 257.638429][ T31] ? disk_block_events+0xab/0x120
[ 257.638452][ T31] ? bdev_open+0xb0/0xd70
[ 257.638486][ T31] bdev_open+0xde/0xd70
[ 257.638530][ T31] blkdev_open+0x461/0x600
[ 257.638568][ T31] ? __pfx_blkdev_open+0x10/0x10
[ 257.638603][ T31] do_dentry_open+0x816/0x1380
[ 257.638645][ T31] vfs_open+0x3b/0x340
[ 257.638669][ T31] ? path_openat+0x1428/0x1d60
[ 257.638710][ T31] path_openat+0x1443/0x1d60
[ 257.638769][ T31] do_file_open+0x23e/0x4a0
[ 257.638813][ T31] ? __pfx_do_file_open+0x10/0x10
[ 257.638875][ T31] ? srso_alias_return_thunk+0x5/0xfbef5
[ 257.638903][ T31] ? _raw_spin_unlock+0x28/0x50
[ 257.638939][ T31] ? srso_alias_return_thunk+0x5/0xfbef5
[ 257.638968][ T31] ? alloc_fd+0x651/0x6c0
[ 257.639010][ T31] do_sys_openat2+0x115/0x200
[ 257.639042][ T31] ? __pfx_do_sys_openat2+0x10/0x10
[ 257.639072][ T31] ? fput_close_sync+0x11f/0x240
[ 257.639101][ T31] ? __pfx_fput_close_sync+0x10/0x10
[ 257.639132][ T31] ? srso_alias_return_thunk+0x5/0xfbef5
[ 257.639167][ T31] __x64_sys_openat+0x138/0x170
[ 257.639202][ T31] do_syscall_64+0x166/0x520
[ 257.639229][ T31] ? trace_irq_disable+0x3b/0x140
[ 257.639260][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 257.639293][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 257.639320][ T31] RIP: 0033:0x7f17de4a7407
[ 257.639342][ T31] RSP: 002b:00007fff96e27460 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
[ 257.639367][ T31] RAX: ffffffffffffffda RBX: 00007f17deb4b880 RCX: 00007f17de4a7407
[ 257.639386][ T31] RDX: 00000000000a0800 RSI: 00005602b9d86190 RDI: ffffffffffffff9c
[ 257.639404][ T31] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 257.639419][ T31] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
[ 257.639434][ T31] R13: 00005602b4918100 R14: 0000000000000000 R15: 00007fff96e276f0
[ 257.639471][ T31]
[ 257.639513][ T31] INFO: task syz-executor.0:5871 blocked for more than 143 seconds.
[ 257.639530][ T31] Not tainted syzkaller #0
[ 257.639542][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 257.639553][ T31] task:syz-executor.0 state:D stack:27464 pid:5871 tgid:5870 ppid:5794 task_flags:0x400140 flags:0x00080802
[ 257.639626][ T31] Call Trace:
[ 257.639635][ T31]
[ 257.639649][ T31] __schedule+0x17d4/0x5820
[ 257.639721][ T31] ? __pfx___schedule+0x10/0x10
[ 257.639771][ T31] ? schedule+0x90/0x2b0
[ 257.639813][ T31] schedule+0x164/0x2b0
[ 257.639855][ T31] schedule_preempt_disabled+0x13/0x30
[ 257.639879][ T31] __mutex_lock+0x7c1/0x1550
[ 257.639913][ T31] ? __mutex_lock+0x5d4/0x1550
[ 257.639945][ T31] ? bdev_release+0x1b8/0x690
[ 257.639980][ T31] ? __pfx___mutex_lock+0x10/0x10
[ 257.640007][ T31] ? srso_alias_return_thunk+0x5/0xfbef5
[ 257.640036][ T31] ? __fsnotify_parent+0x530/0x620
[ 257.640084][ T31] ? __pfx___fsnotify_parent+0x10/0x10
[ 257.640125][ T31] bdev_release+0x1b8/0x690
[ 257.640168][ T31] ? __pfx_blkdev_release+0x10/0x10
[ 257.640203][ T31] blkdev_release+0x15/0x20
[ 257.640236][ T31] __fput+0x418/0xa50
[ 257.640283][ T31] task_work_run+0x1d9/0x270
[ 257.640316][ T31] ? __pfx_task_work_run+0x10/0x10
[ 257.640341][ T31] ? __fput_deferred+0x222/0x390
[ 257.640380][ T31] exit_to_user_mode_loop+0x204/0x770
[ 257.640406][ T31] ? srso_alias_return_thunk+0x5/0xfbef5
[ 257.640434][ T31] ? rcu_is_watching+0x16/0xb0
[ 257.640469][ T31] do_syscall_64+0x328/0x520
[ 257.640496][ T31] ? trace_irq_disable+0x3b/0x140
[ 257.640520][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 257.640552][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 257.640578][ T31] RIP: 0033:0x7fdc9ae6d0f9
[ 257.640599][ T31] RSP: 002b:00007fdc9bbb1078 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 257.640624][ T31] RAX: 0000000000000000 RBX: 00007fdc9afabf80 RCX: 00007fdc9ae6d0f9
[ 257.640641][ T31] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
[ 257.640656][ T31] RBP: 00007fdc9aece498 R08: 0000000000000000 R09: 0000000000000000
[ 257.640672][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 257.640687][ T31] R13: 000000000000000b R14: 00007fdc9afabf80 R15: 00007ffed9944558
[ 257.640724][ T31]
[ 257.640754][ T31]
[ 257.640754][ T31] Showing all locks held in the system:
[ 257.640766][ T31] locks held by pr/ttyS0/16: 2, last CPU#0:
[ 257.640784][ T31] #0: ffffffff8ec36278 (console_srcu){....}-{0:0}, at: console_srcu_read_lock+0x30/0x60
[ 257.640872][ T31] #1: ffffffff9ad250d8 (&port_lock_key){-.-.}-{3:3}, at: univ8250_console_device_lock+0x67/0xc0
[ 257.640938][ T31] locks held by khungtaskd/31: 1, last CPU#1:
[ 257.640955][ T31] #0: ffffffff8ed5c6a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[ 257.641046][ T31] locks held by udevd/4974: 1, on CPU#1:
[ 257.641063][ T31] #0: ffff888022bf4350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xde/0xd70
[ 257.641132][ T31] locks held by getty/5363: 2, on CPU#1:
[ 257.641149][ T31] #0: ffff888035a090a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[ 257.641211][ T31] #1: ffffc900032332e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360
[ 257.641290][ T31] locks held by udevd/5779: 1, on CPU#1:
[ 257.641307][ T31] #0: ffff888022bf4350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xde/0xd70
[ 257.641376][ T31] locks held by syz-executor.0/5871: 1, on CPU#1:
[ 257.641393][ T31] #0: ffff888022bf4350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x1b8/0x690
[ 257.641464][ T31] locks held by syz-executor.0/6007: 1, on CPU#0:
[ 257.641481][ T31] #0: ffff888022bf4350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xde/0xd70
[ 257.641550][ T31] locks held by syz-executor.0/6050: 1, on CPU#1:
[ 257.641567][ T31] #0: ffff888022bf4350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xde/0xd70
[ 257.641634][ T31]
[ 257.641641][ T31] =============================================
[ 257.641641][ T31]
[ 257.641651][ T31] NMI backtrace for cpu 1
[ 257.641666][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full)
[ 257.641691][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/05/2026
[ 257.641705][ T31] Call Trace:
[ 257.641714][ T31]
[ 257.641724][ T31] dump_stack_lvl+0xe8/0x150
[ 257.641761][ T31] nmi_cpu_backtrace+0x274/0x2d0
[ 257.641798][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 257.641840][ T31] nmi_trigger_cpumask_backtrace+0x17d/0x390
[ 257.641880][ T31] sys_info+0x135/0x170
[ 257.641911][ T31] watchdog+0xfd7/0x1030
[ 257.641944][ T31] ? watchdog+0x1c7/0x1030
[ 257.641975][ T31] kthread+0x38b/0x480
[ 257.642000][ T31] ? __pfx_watchdog+0x10/0x10
[ 257.642021][ T31] ? __pfx_kthread+0x10/0x10
[ 257.642047][ T31] ret_from_fork+0x514/0xb70
[ 257.642075][ T31] ? __pfx_ret_from_fork+0x10/0x10
[ 257.642098][ T31] ? srso_alias_return_thunk+0x5/0xfbef5
[ 257.642126][ T31] ? __switch_to+0xc89/0x1420
[ 257.642164][ T31] ? __pfx_kthread+0x10/0x10
[ 257.642189][ T31] ret_from_fork_asm+0x1a/0x30
[ 257.642245][ T31]
[ 257.642265][ T31] Sending NMI from CPU 1 to CPUs 0:
[ 257.642297][ C0] NMI backtrace for cpu 0
[ 257.642310][ C0] CPU: 0 UID: 0 PID: 16 Comm: pr/ttyS0 Not tainted syzkaller #0 PREEMPT(full)
[ 257.642334][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/05/2026
[ 257.642347][ C0] RIP: 0010:io_serial_in+0x77/0xc0
[ 257.642380][ C0] Code: e8 9e 53 57 fc 44 89 f9 d3 e3 49 83 c6 40 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 1f 06 c7 fc 41 03 1e 89 da ec <0f> b6 c0 5b 41 5c 41 5e 41 5f e9 25 e6 9f fb cc 44 89 f9 80 e1 07
[ 257.642398][ C0] RSP: 0018:ffffc900001578b8 EFLAGS: 00000002
[ 257.642417][ C0] RAX: 1ffffffff35a4a00 RBX: 00000000000003fd RCX: 0000000000000000
[ 257.642432][ C0] RDX: 00000000000003fd RSI: 0000000000000000 RDI: 0000000000000020
[ 257.642446][ C0] RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004
[ 257.642461][ C0] R10: dffffc0000000000 R11: ffffffff85705a60 R12: dffffc0000000000
[ 257.642478][ C0] R13: 0000000000000000 R14: ffffffff9ad25100 R15: 0000000000000000
[ 257.642496][ C0] FS: 0000000000000000(0000) GS:ffff888124ce6000(0000) knlGS:0000000000000000
[ 257.642514][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 257.642530][ C0] CR2: 0000561e08485168 CR3: 000000000eb48000 CR4: 0000000000350ef0
[ 257.642548][ C0] Call Trace:
[ 257.642556][ C0]
[ 257.642566][ C0] wait_for_lsr+0x184/0x2f0
[ 257.642599][ C0] __serial8250_console_fifo_write+0xcd/0x3e0
[ 257.642641][ C0] serial8250_console_write+0xaa1/0x1200
[ 257.642677][ C0] ? __pfx_serial8250_console_write+0x10/0x10
[ 257.642706][ C0] ? srso_alias_return_thunk+0x5/0xfbef5
[ 257.642733][ C0] ? rcu_is_watching+0x16/0xb0
[ 257.642772][ C0] ? srso_alias_return_thunk+0x5/0xfbef5
[ 257.642804][ C0] nbcon_emit_next_record+0xef5/0x1a90
[ 257.642840][ C0] ? __pfx_nbcon_emit_next_record+0x10/0x10
[ 257.642869][ C0] ? srso_alias_return_thunk+0x5/0xfbef5
[ 257.642896][ C0] ? nbcon_context_try_acquire+0x819/0xbd0
[ 257.642930][ C0] ? srso_alias_return_thunk+0x5/0xfbef5
[ 257.642957][ C0] ? _raw_spin_lock_irqsave+0x4c/0x60
[ 257.642996][ C0] nbcon_kthread_func+0x679/0x880
[ 257.643024][ C0] ? nbcon_kthread_func+0x163/0x880
[ 257.643047][ C0] ? __pfx_nbcon_kthread_func+0x10/0x10
[ 257.643071][ C0] ? srso_alias_return_thunk+0x5/0xfbef5
[ 257.643102][ C0] ? __kthread_parkme+0x71/0x1f0
[ 257.643137][ C0] ? __kthread_parkme+0x199/0x1f0
[ 257.643175][ C0] kthread+0x38b/0x480
[ 257.643196][ C0] ? __pfx_nbcon_kthread_func+0x10/0x10
[ 257.643218][ C0] ? __pfx_kthread+0x10/0x10
[ 257.643241][ C0] ret_from_fork+0x514/0xb70
[ 257.643265][ C0] ? __pfx_ret_from_fork+0x10/0x10
[ 257.643286][ C0] ? srso_alias_return_thunk+0x5/0xfbef5
[ 257.643313][ C0] ? __switch_to+0xc89/0x1420
[ 257.643347][ C0] ? __pfx_kthread+0x10/0x10
[ 257.643370][ C0] ret_from_fork_asm+0x1a/0x30
[ 257.643417][ C0]
[ 257.644289][ T31] Kernel panic - not syncing: hung_task: blocked tasks
[ 258.699554][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full)
[ 258.708697][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/05/2026
[ 258.718805][ T31] Call Trace:
[ 258.722086][ T31]
[ 258.725010][ T31] vpanic+0x56d/0xa60
[ 258.729008][ T31] ? __pfx_vpanic+0x10/0x10
[ 258.733531][ T31] ? srso_alias_return_thunk+0x5/0xfbef5
[ 258.739188][ T31] ? console_srcu_read_unlock+0x3a/0x60
[ 258.744764][ T31] panic+0xc5/0xd0
[ 258.748505][ T31] ? __pfx_panic+0x10/0x10
[ 258.752946][ T31] ? srso_alias_return_thunk+0x5/0xfbef5
[ 258.758596][ T31] ? wq_watchdog_touch+0xf9/0x160
[ 258.763641][ T31] ? nmi_trigger_cpumask_backtrace+0x24d/0x390
[ 258.769813][ T31] watchdog+0x1030/0x1030
[ 258.774158][ T31] ? watchdog+0x1c7/0x1030
[ 258.778573][ T31] kthread+0x38b/0x480
[ 258.782646][ T31] ? __pfx_watchdog+0x10/0x10
[ 258.787331][ T31] ? __pfx_kthread+0x10/0x10
[ 258.791932][ T31] ret_from_fork+0x514/0xb70
[ 258.796533][ T31] ? __pfx_ret_from_fork+0x10/0x10
[ 258.801678][ T31] ? srso_alias_return_thunk+0x5/0xfbef5
[ 258.807314][ T31] ? __switch_to+0xc89/0x1420
[ 258.812007][ T31] ? __pfx_kthread+0x10/0x10
[ 258.816599][ T31] ret_from_fork_asm+0x1a/0x30
[ 258.821433][ T31]
[ 258.824682][ T31] Kernel Offset: disabled
[ 258.828993][ T31] Rebooting in 86400 seconds..