Warning: Permanently added '10.128.0.81' (ED25519) to the list of known hosts. 1970/01/01 00:00:43 ignoring optional flag "type"="gce" 1970/01/01 00:00:43 parsed 1 programs 1970/01/01 00:00:43 executed programs: 0 [ 43.721316][ T6144] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 43.723224][ T6144] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 43.723528][ T6144] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 43.723851][ T6144] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 43.724036][ T6144] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 43.769845][ T6743] chnl_net:caif_netlink_parms(): no params data found [ 43.788061][ T6743] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.788135][ T6743] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.788192][ T6743] bridge_slave_0: entered allmulticast mode [ 43.788601][ T6743] bridge_slave_0: entered promiscuous mode [ 43.789621][ T6743] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.789660][ T6743] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.789714][ T6743] bridge_slave_1: entered allmulticast mode [ 43.790124][ T6743] bridge_slave_1: entered promiscuous mode [ 43.799447][ T6743] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 43.800371][ T6743] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 43.807996][ T6743] team0: Port device team_slave_0 added [ 43.808685][ T6743] team0: Port device team_slave_1 added [ 43.814681][ T6743] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 43.814701][ T6743] 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. [ 43.814714][ T6743] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 43.815216][ T6743] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 43.815222][ T6743] 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. [ 43.815232][ T6743] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 43.829394][ T6743] hsr_slave_0: entered promiscuous mode [ 43.829677][ T6743] hsr_slave_1: entered promiscuous mode [ 44.128034][ T6743] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 44.131352][ T6743] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 44.134732][ T6743] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 44.139125][ T6743] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 44.148038][ T6743] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.148074][ T6743] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.148149][ T6743] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.148176][ T6743] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.172748][ T6743] 8021q: adding VLAN 0 to HW filter on device bond0 [ 44.176779][ T42] bridge0: port 1(bridge_slave_0) entered disabled state [ 44.178142][ T42] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.182044][ T6743] 8021q: adding VLAN 0 to HW filter on device team0 [ 44.185564][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.185600][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.189795][ T42] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.189841][ T42] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.237069][ T6743] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 44.249184][ T6743] veth0_vlan: entered promiscuous mode [ 44.252071][ T6743] veth1_vlan: entered promiscuous mode [ 44.261714][ T6743] veth0_macvtap: entered promiscuous mode [ 44.264472][ T6743] veth1_macvtap: entered promiscuous mode [ 44.269445][ T6743] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 44.276808][ T6743] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 44.281751][ T1044] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 44.283547][ T1044] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 44.283575][ T1044] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 44.283591][ T1044] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 44.404189][ T6834] nbd0: detected capacity change from 0 to 131072 [ 45.154227][ T6144] block nbd0: Receive control failed (result -104) [ 45.782603][ T6144] Bluetooth: hci0: command tx timeout [ 47.852182][ T6144] Bluetooth: hci0: command tx timeout [ 49.932291][ T6144] Bluetooth: hci0: command tx timeout [ 52.012528][ T6144] Bluetooth: hci0: command tx timeout [ 64.493423][ T2455] ieee802154 phy0 wpan0: encryption failed: -22 [ 64.493475][ T2455] ieee802154 phy1 wpan1: encryption failed: -22 [ 64.497092][ T1860] cfg80211: failed to load regulatory.db [ 74.733707][ T57] block nbd0: Possible stuck request 0000000053566625: control (read@0,4096B). Runtime 30 seconds 1970/01/01 00:01:39 executed programs: 1 [ 100.332104][ T6563] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 100.334085][ T53] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 100.335417][ T53] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 100.335772][ T53] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 100.335975][ T53] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 100.380599][ T6943] chnl_net:caif_netlink_parms(): no params data found [ 100.399661][ T6943] bridge0: port 1(bridge_slave_0) entered blocking state [ 100.399730][ T6943] bridge0: port 1(bridge_slave_0) entered disabled state [ 100.399801][ T6943] bridge_slave_0: entered allmulticast mode [ 100.400205][ T6943] bridge_slave_0: entered promiscuous mode [ 100.401237][ T6943] bridge0: port 2(bridge_slave_1) entered blocking state [ 100.401280][ T6943] bridge0: port 2(bridge_slave_1) entered disabled state [ 100.401326][ T6943] bridge_slave_1: entered allmulticast mode [ 100.401698][ T6943] bridge_slave_1: entered promiscuous mode [ 100.413288][ T6943] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 100.414174][ T6943] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 100.420430][ T6943] team0: Port device team_slave_0 added [ 100.421929][ T6943] team0: Port device team_slave_1 added [ 100.428698][ T6943] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 100.428715][ T6943] 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. [ 100.428727][ T6943] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 100.429225][ T6943] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 100.429231][ T6943] 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. [ 100.429242][ T6943] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 100.448605][ T6943] hsr_slave_0: entered promiscuous mode [ 100.448896][ T6943] hsr_slave_1: entered promiscuous mode [ 100.449088][ T6943] debugfs: 'hsr0' already exists in 'hsr' [ 100.449129][ T6943] Cannot create hsr debugfs directory [ 100.479236][ T6943] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.527318][ T6943] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.567360][ T6943] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.627945][ T6943] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.744730][ T6943] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 100.746885][ T6943] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 100.748794][ T6943] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 100.750789][ T6943] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 100.759777][ T6943] bridge0: port 2(bridge_slave_1) entered blocking state [ 100.759822][ T6943] bridge0: port 2(bridge_slave_1) entered forwarding state [ 100.759887][ T6943] bridge0: port 1(bridge_slave_0) entered blocking state [ 100.759911][ T6943] bridge0: port 1(bridge_slave_0) entered forwarding state [ 100.774623][ T6943] 8021q: adding VLAN 0 to HW filter on device bond0 [ 100.777436][ T304] bridge0: port 1(bridge_slave_0) entered disabled state [ 100.778787][ T304] bridge0: port 2(bridge_slave_1) entered disabled state [ 100.783653][ T6943] 8021q: adding VLAN 0 to HW filter on device team0 [ 100.785947][ T1044] bridge0: port 1(bridge_slave_0) entered blocking state [ 100.785981][ T1044] bridge0: port 1(bridge_slave_0) entered forwarding state [ 100.787683][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 100.787702][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 100.832462][ T6943] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 100.841743][ T6943] veth0_vlan: entered promiscuous mode [ 100.845107][ T6943] veth1_vlan: entered promiscuous mode [ 100.851446][ T6943] veth0_macvtap: entered promiscuous mode [ 100.855235][ T6943] veth1_macvtap: entered promiscuous mode [ 100.858421][ T6943] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 100.859866][ T6943] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 100.863286][ T12] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.865752][ T12] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.865794][ T12] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.865811][ T12] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.412241][ T53] Bluetooth: hci1: command tx timeout [ 104.492185][ T53] Bluetooth: hci1: command tx timeout [ 104.812482][ T57] block nbd0: Possible stuck request 0000000053566625: control (read@0,4096B). Runtime 60 seconds [ 106.572186][ T53] Bluetooth: hci1: command tx timeout [ 108.652438][ T53] Bluetooth: hci1: command tx timeout [ 125.932762][ T2455] ieee802154 phy0 wpan0: encryption failed: -22 [ 125.933919][ T2455] ieee802154 phy1 wpan1: encryption failed: -22 [ 134.892547][ T57] block nbd0: Possible stuck request 0000000053566625: control (read@0,4096B). Runtime 90 seconds 1970/01/01 00:02:35 executed programs: 2 [ 156.915481][ T6144] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 156.916779][ T6144] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 156.917472][ T6144] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 156.917813][ T6144] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 156.918022][ T6144] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 156.961017][ T6970] chnl_net:caif_netlink_parms(): no params data found [ 156.980014][ T6970] bridge0: port 1(bridge_slave_0) entered blocking state [ 156.980090][ T6970] bridge0: port 1(bridge_slave_0) entered disabled state [ 156.980143][ T6970] bridge_slave_0: entered allmulticast mode [ 156.980556][ T6970] bridge_slave_0: entered promiscuous mode [ 156.981307][ T6970] bridge0: port 2(bridge_slave_1) entered blocking state [ 156.981354][ T6970] bridge0: port 2(bridge_slave_1) entered disabled state [ 156.981415][ T6970] bridge_slave_1: entered allmulticast mode [ 156.981799][ T6970] bridge_slave_1: entered promiscuous mode [ 156.993525][ T6970] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 156.994374][ T6970] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 157.000595][ T6970] team0: Port device team_slave_0 added [ 157.001749][ T6970] team0: Port device team_slave_1 added [ 157.008728][ T6970] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 157.008746][ T6970] 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. [ 157.008759][ T6970] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 157.009258][ T6970] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 157.009265][ T6970] 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. [ 157.009275][ T6970] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 157.027700][ T6970] hsr_slave_0: entered promiscuous mode [ 157.028027][ T6970] hsr_slave_1: entered promiscuous mode [ 157.028217][ T6970] debugfs: 'hsr0' already exists in 'hsr' [ 157.028228][ T6970] Cannot create hsr debugfs directory [ 157.058975][ T6970] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 157.098335][ T6970] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 157.137295][ T6970] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 157.178619][ T6970] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 157.284373][ T6970] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 157.286603][ T6970] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 157.288568][ T6970] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 157.290642][ T6970] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 157.299159][ T6970] bridge0: port 2(bridge_slave_1) entered blocking state [ 157.299197][ T6970] bridge0: port 2(bridge_slave_1) entered forwarding state [ 157.299259][ T6970] bridge0: port 1(bridge_slave_0) entered blocking state [ 157.299283][ T6970] bridge0: port 1(bridge_slave_0) entered forwarding state [ 157.313864][ T6970] 8021q: adding VLAN 0 to HW filter on device bond0 [ 157.316714][ T304] bridge0: port 1(bridge_slave_0) entered disabled state [ 157.317986][ T304] bridge0: port 2(bridge_slave_1) entered disabled state [ 157.321900][ T6970] 8021q: adding VLAN 0 to HW filter on device team0 [ 157.325544][ T304] bridge0: port 1(bridge_slave_0) entered blocking state [ 157.325573][ T304] bridge0: port 1(bridge_slave_0) entered forwarding state [ 157.329169][ T304] bridge0: port 2(bridge_slave_1) entered blocking state [ 157.329208][ T304] bridge0: port 2(bridge_slave_1) entered forwarding state [ 157.375539][ T6970] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 157.385976][ T6970] veth0_vlan: entered promiscuous mode [ 157.387469][ T6970] veth1_vlan: entered promiscuous mode [ 157.393432][ T6970] veth0_macvtap: entered promiscuous mode [ 157.394396][ T6970] veth1_macvtap: entered promiscuous mode [ 157.397548][ T6970] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 157.398811][ T6970] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 157.403075][ T42] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 157.404582][ T42] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 157.405982][ T42] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 157.407622][ T42] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 158.972566][ T6144] Bluetooth: hci2: command tx timeout [ 161.052265][ T6144] Bluetooth: hci2: command tx timeout [ 163.132207][ T6144] Bluetooth: hci2: command tx timeout [ 164.972866][ T57] block nbd0: Possible stuck request 0000000053566625: control (read@0,4096B). Runtime 120 seconds [ 165.212207][ T6144] Bluetooth: hci2: command tx timeout [ 168.972170][ T53] Bluetooth: hci0: command 0x0406 tx timeout [ 187.372674][ T2455] ieee802154 phy0 wpan0: encryption failed: -22 [ 187.373803][ T2455] ieee802154 phy1 wpan1: encryption failed: -22 [ 195.052730][ T57] block nbd0: Possible stuck request 0000000053566625: control (read@0,4096B). Runtime 150 seconds [ 208.492269][ T32] INFO: task ** replaying previous printk message ** [ 208.492269][ T32] INFO: task udevd:6191 blocked for more than 143 seconds. [ 208.492300][ T32] Not tainted syzkaller #0 [ 208.492316][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 208.492321][ T32] task:udevd state:D stack:0 pid:6191 tgid:6191 ppid:1 task_flags:0x400140 flags:0x00800008 [ 208.492334][ T32] Call trace: [ 208.492337][ T32] __switch_to+0x418/0x87c (T) [ 208.492352][ T32] __schedule+0x13b0/0x2864 [ 208.492359][ T32] schedule+0xb4/0x230 [ 208.492364][ T32] schedule_preempt_disabled+0x18/0x2c [ 208.492371][ T32] __mutex_lock_common+0xd04/0x2678 [ 208.492378][ T32] mutex_lock_nested+0x2c/0x38 [ 208.492384][ T32] bdev_open+0xcc/0xc20 [ 208.492392][ T32] blkdev_open+0x364/0x4e8 [ 208.492399][ T32] do_dentry_open+0x7a4/0x10bc [ 208.492406][ T32] vfs_open+0x44/0x2d4 [ 208.492411][ T32] path_openat+0x2424/0x2c40 [ 208.492418][ T32] do_filp_open+0x18c/0x36c [ 208.492425][ T32] do_sys_openat2+0x11c/0x1b4 [ 208.492430][ T32] __arm64_sys_openat+0x120/0x158 [ 208.492436][ T32] invoke_syscall+0x98/0x254 [ 208.492442][ T32] el0_svc_common+0xe8/0x23c [ 208.492448][ T32] do_el0_svc+0x48/0x58 [ 208.492453][ T32] el0_svc+0x5c/0x254 [ 208.492460][ T32] el0t_64_sync_handler+0x84/0x12c [ 208.492466][ T32] el0t_64_sync+0x198/0x19c [ 208.492482][ T32] INFO: task syz-executor.0:6825 blocked for more than 143 seconds. [ 208.492487][ T32] Not tainted syzkaller #0 [ 208.492490][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 208.492493][ T32] task:syz-executor.0 state:D stack:0 pid:6825 tgid:6823 ppid:6743 task_flags:0x400140 flags:0x00000019 [ 208.492502][ T32] Call trace: [ 208.492505][ T32] __switch_to+0x418/0x87c (T) [ 208.492511][ T32] __schedule+0x13b0/0x2864 [ 208.492517][ T32] schedule+0xb4/0x230 [ 208.492523][ T32] schedule_preempt_disabled+0x18/0x2c [ 208.492529][ T32] __mutex_lock_common+0xd04/0x2678 [ 208.492535][ T32] mutex_lock_nested+0x2c/0x38 [ 208.492541][ T32] bdev_release+0x154/0x654 [ 208.492548][ T32] blkdev_release+0x20/0x34 [ 208.492555][ T32] __fput+0x340/0x75c [ 208.492561][ T32] ____fput+0x20/0x58 [ 208.492567][ T32] task_work_run+0x1dc/0x260 [ 208.492575][ T32] get_signal+0x112c/0x12f8 [ 208.492580][ T32] arch_do_signal_or_restart+0x274/0x4414 [ 208.492587][ T32] exit_to_user_mode_loop+0x7c/0x178 [ 208.492594][ T32] el0_svc+0x170/0x254 [ 208.492601][ T32] el0t_64_sync_handler+0x84/0x12c [ 208.492608][ T32] el0t_64_sync+0x198/0x19c [ 208.492618][ T32] [ 208.492618][ T32] Showing all locks held in the system: [ 208.492623][ T32] 1 lock held by khungtaskd/32: [ 208.492626][ T32] #0: ffff80008f76b6a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 [ 208.492647][ T32] 2 locks held by pr/ttyAMA-1/43: [ 208.492653][ T32] 2 locks held by kworker/u8:6/1044: [ 208.492661][ T32] 1 lock held by udevd/6191: [ 208.492664][ T32] #0: ffff0000ca6be358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xcc/0xc20 [ 208.492682][ T32] 2 locks held by getty/6333: [ 208.492685][ T32] #0: ffff0000d86180a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c [ 208.492703][ T32] #1: ffff80009bb2b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfa4 [ 208.492722][ T32] 1 lock held by udevd/6747: [ 208.492726][ T32] #0: ffff0000ca6be358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xcc/0xc20 [ 208.492743][ T32] 1 lock held by syz-executor.0/6825: [ 208.492746][ T32] #0: ffff0000ca6be358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x154/0x654 [ 208.492764][ T32] 1 lock held by syz-executor.0/6962: [ 208.492767][ T32] #0: ffff0000ca6be358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xcc/0xc20 [ 208.492785][ T32] 1 lock held by syz-executor.0/6989: [ 208.492788][ T32] #0: ffff0000ca6be358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xcc/0xc20 [ 208.492810][ T32] [ 208.492812][ T32] ============================================= [ 208.492812][ T32] [ 208.492817][ T32] Kernel panic - not syncing: hung_task: blocked tasks [ 208.544712][ T32] CPU: 1 UID: 0 PID: 32 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT [ 208.545903][ T32] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 208.547271][ T32] Call trace: [ 208.547679][ T32] show_stack+0x2c/0x3c (C) [ 208.548268][ T32] __dump_stack+0x30/0x40 [ 208.548875][ T32] dump_stack_lvl+0x30/0x12c [ 208.549490][ T32] dump_stack+0x1c/0x28 [ 208.550025][ T32] vpanic+0x22c/0x6c0 [ 208.550585][ T32] vpanic+0x0/0x6c0 [ 208.551086][ T32] hung_task_panic+0x0/0x2c [ 208.551706][ T32] kthread+0x5fc/0x75c [ 208.552256][ T32] ret_from_fork+0x10/0x20 [ 208.552862][ T32] SMP: stopping secondary CPUs [ 208.553504][ T32] Kernel Offset: disabled [ 208.554067][ T32] CPU features: 0x100000,0001e000,42702281,5427fea7 [ 208.554903][ T32] Memory Limit: none [ 208.758376][ T32] Rebooting in 86400 seconds..