[ 26.944008][ T1396] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 26.994178][ T1396] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 27.094554][ T1396] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 27.196719][ T1396] bridge_slave_1: left allmulticast mode [ 27.196756][ T1396] bridge_slave_1: left promiscuous mode [ 27.197048][ T1396] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.200665][ T1396] bridge_slave_0: left allmulticast mode [ 27.200697][ T1396] bridge_slave_0: left promiscuous mode [ 27.200765][ T1396] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.257318][ T1396] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 27.262815][ T1396] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 27.265564][ T1396] bond0 (unregistering): Released all slaves [ 27.298286][ T1396] hsr_slave_0: left promiscuous mode [ 27.299650][ T1396] hsr_slave_1: left promiscuous mode [ 27.301160][ T1396] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 27.302551][ T1396] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 27.304244][ T1396] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 27.305654][ T1396] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 27.310601][ T1396] veth1_macvtap: left promiscuous mode [ 27.311935][ T1396] veth0_macvtap: left promiscuous mode [ 27.313013][ T1396] veth1_vlan: left promiscuous mode [ 27.314034][ T1396] veth0_vlan: left promiscuous mode [ 27.407628][ T1396] team0 (unregistering): Port device team_slave_1 removed [ 27.411396][ T1396] team0 (unregistering): Port device team_slave_0 removed [ 27.459442][ T4402] 8021q: adding VLAN 0 to HW filter on device eth0 [ 27.593352][ T4402] 8021q: adding VLAN 0 to HW filter on device eth1 [ 27.707635][ T4402] 8021q: adding VLAN 0 to HW filter on device eth2 [ 27.814107][ T4402] 8021q: adding VLAN 0 to HW filter on device eth3 Warning: Permanently added '10.128.1.113' (ED25519) to the list of known hosts. 1970/01/01 00:00:31 ignoring optional flag "type"="gce" 1970/01/01 00:00:31 parsed 1 programs 1970/01/01 00:00:31 executed programs: 0 [ 31.182576][ T50] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 31.182948][ T50] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 31.183112][ T50] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 31.183452][ T50] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 31.183753][ T50] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 31.310334][ T4872] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.310389][ T4872] bridge0: port 1(bridge_slave_0) entered disabled state [ 31.310477][ T4872] bridge_slave_0: entered allmulticast mode [ 31.311030][ T4872] bridge_slave_0: entered promiscuous mode [ 31.311857][ T4872] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.311902][ T4872] bridge0: port 2(bridge_slave_1) entered disabled state [ 31.311943][ T4872] bridge_slave_1: entered allmulticast mode [ 31.312325][ T4872] bridge_slave_1: entered promiscuous mode [ 31.322270][ T4872] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 31.323114][ T4872] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 31.330391][ T4872] team0: Port device team_slave_0 added [ 31.331626][ T4872] team0: Port device team_slave_1 added [ 31.338329][ T4872] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 31.338476][ T4872] 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. [ 31.338496][ T4872] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 31.339095][ T4872] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 31.339102][ T4872] 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. [ 31.339114][ T4872] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 31.359199][ T4872] hsr_slave_0: entered promiscuous mode [ 31.359477][ T4872] hsr_slave_1: entered promiscuous mode [ 31.751513][ T4872] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 31.752833][ T4872] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 31.753292][ T4872] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 31.756264][ T4872] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 31.756621][ T4872] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 31.758292][ T4872] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 31.760033][ T4872] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 31.762167][ T4872] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 31.776568][ T4872] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.776612][ T4872] bridge0: port 2(bridge_slave_1) entered forwarding state [ 31.776699][ T4872] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.776731][ T4872] bridge0: port 1(bridge_slave_0) entered forwarding state [ 31.796403][ T4872] 8021q: adding VLAN 0 to HW filter on device bond0 [ 31.800758][ T1396] bridge0: port 1(bridge_slave_0) entered disabled state [ 31.806183][ T1396] bridge0: port 2(bridge_slave_1) entered disabled state [ 31.810682][ T4872] 8021q: adding VLAN 0 to HW filter on device team0 [ 31.816625][ T39] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.816662][ T39] bridge0: port 1(bridge_slave_0) entered forwarding state [ 31.821923][ T1396] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.821980][ T1396] bridge0: port 2(bridge_slave_1) entered forwarding state [ 31.836305][ T4872] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 31.838078][ T4872] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 31.931221][ T4872] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 31.963877][ T4872] veth0_vlan: entered promiscuous mode [ 31.967080][ T4872] veth1_vlan: entered promiscuous mode [ 31.973747][ T4872] veth0_macvtap: entered promiscuous mode [ 31.977403][ T4872] veth1_macvtap: entered promiscuous mode [ 31.983550][ T4872] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 31.986690][ T4872] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 32.001727][ T1396] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 32.001771][ T1396] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 32.002076][ T1396] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 32.002117][ T1396] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 33.211325][ T4730] Bluetooth: hci0: command tx timeout [ 35.290931][ T4730] Bluetooth: hci0: command tx timeout [ 37.381070][ T4730] Bluetooth: hci0: command tx timeout [ 39.450915][ T4730] Bluetooth: hci0: command tx timeout [ 64.492642][ T1596] ieee802154 phy0 wpan0: encryption failed: -22 [ 64.492692][ T1596] ieee802154 phy1 wpan1: encryption failed: -22 [ 64.499650][ T1519] cfg80211: failed to load regulatory.db [ 125.931309][ T1596] ieee802154 phy0 wpan0: encryption failed: -22 [ 125.931358][ T1596] ieee802154 phy1 wpan1: encryption failed: -22 [ 153.610917][ T50] Bluetooth: hci0: command 0x0406 tx timeout [ 186.091020][ T31] INFO: task s ** replaying previous printk message ** [ 186.091020][ T31] INFO: task syz-executor.0:4872 blocked for more than 143 seconds. [ 186.091053][ T31] Not tainted syzkaller #0 [ 186.091072][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 186.091082][ T31] task:syz-executor.0 state:D stack:0 pid:4872 tgid:4872 ppid:1 task_flags:0x400140 flags:0x00000001 [ 186.091105][ T31] Call trace: [ 186.091113][ T31] __switch_to+0x2b0/0x6e0 (T) [ 186.091129][ T31] __schedule+0x1370/0x2d80 [ 186.091138][ T31] schedule+0x13c/0x20c [ 186.091146][ T31] schedule_preempt_disabled+0x18/0x2c [ 186.091155][ T31] __mutex_lock+0x4ec/0xf14 [ 186.091163][ T31] mutex_lock_nested+0x24/0x30 [ 186.091171][ T31] fuse_lock_inode+0xd4/0x11c [ 186.091182][ T31] fuse_lookup+0x150/0x354 [ 186.091193][ T31] __lookup_slow+0x1e4/0x2b4 [ 186.091202][ T31] lookup_slow+0x60/0x84 [ 186.091211][ T31] link_path_walk+0xb0c/0x1584 [ 186.091221][ T31] path_openat+0x1b4/0x2a60 [ 186.091230][ T31] do_file_open+0x1c8/0x2e8 [ 186.091239][ T31] do_sys_openat2+0x114/0x1e8 [ 186.091250][ T31] do_sys_open+0xb0/0xe0 [ 186.091260][ T31] __arm64_sys_openat+0xa8/0xc4 [ 186.091271][ T31] invoke_syscall+0x98/0x244 [ 186.091283][ T31] el0_svc_common+0xec/0x23c [ 186.091293][ T31] do_el0_svc+0x4c/0x5c [ 186.091303][ T31] el0_svc+0x64/0x260 [ 186.091312][ T31] el0t_64_sync_handler+0x44/0x104 [ 186.091321][ T31] el0t_64_sync+0x198/0x19c [ 186.091336][ T31] INFO: task syz-executor.0:4990 blocked for more than 143 seconds. [ 186.091341][ T31] Not tainted syzkaller #0 [ 186.091346][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 186.091349][ T31] task:syz-executor.0 state:D stack:0 pid:4990 tgid:4983 ppid:4872 task_flags:0x400040 flags:0x00800011 [ 186.091361][ T31] Call trace: [ 186.091364][ T31] __switch_to+0x2b0/0x6e0 (T) [ 186.091372][ T31] __schedule+0x1370/0x2d80 [ 186.091380][ T31] schedule+0x13c/0x20c [ 186.091387][ T31] fuse_chan_send+0x824/0xf28 [ 186.091396][ T31] __fuse_simple_request+0xa0/0xb8 [ 186.091406][ T31] fuse_lookup_name+0x214/0x67c [ 186.091416][ T31] fuse_lookup+0x198/0x354 [ 186.091426][ T31] __lookup_slow+0x1e4/0x2b4 [ 186.091434][ T31] lookup_slow+0x60/0x84 [ 186.091443][ T31] link_path_walk+0xb0c/0x1584 [ 186.091453][ T31] path_openat+0x1b4/0x2a60 [ 186.091462][ T31] do_file_open+0x1c8/0x2e8 [ 186.091470][ T31] do_sys_openat2+0x114/0x1e8 [ 186.091481][ T31] do_sys_open+0xb0/0xe0 [ 186.091491][ T31] __arm64_sys_openat+0xa8/0xc4 [ 186.091501][ T31] invoke_syscall+0x98/0x244 [ 186.091512][ T31] el0_svc_common+0xec/0x23c [ 186.091522][ T31] do_el0_svc+0x4c/0x5c [ 186.091533][ T31] el0_svc+0x64/0x260 [ 186.091541][ T31] el0t_64_sync_handler+0x44/0x104 [ 186.091550][ T31] el0t_64_sync+0x198/0x19c [ 186.091558][ T31] [ 186.091558][ T31] Showing all locks held in the system: [ 186.091562][ T31] 2 locks held by kworker/0:0/9: [ 186.091568][ T31] 1 lock held by khungtaskd/31: [ 186.091573][ T31] #0: ffff800088d271a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x4c/0x188 [ 186.091603][ T31] 2 locks held by pr/ttyAMA-1/41: [ 186.091615][ T31] 2 locks held by getty/4494: [ 186.091620][ T31] #0: ffff0000d0aab0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c [ 186.091642][ T31] #1: ffff80009250b2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x348/0xf78 [ 186.091666][ T31] 2 locks held by syz-executor.0/4872: [ 186.091671][ T31] #0: ffff0000e06ecb80 (&type->i_mutex_dir_key#8){++++}-{4:4}, at: lookup_slow+0x50/0x84 [ 186.091695][ T31] #1: ffff0000e06ecff8 (&fi->mutex){+.+.}-{4:4}, at: fuse_lock_inode+0xd4/0x11c [ 186.091716][ T31] 2 locks held by syz-executor.0/4990: [ 186.091720][ T31] #0: ffff0000e06ecb80 (&type->i_mutex_dir_key#8){++++}-{4:4}, at: lookup_slow+0x50/0x84 [ 186.091743][ T31] #1: ffff0000e06ecff8 (&fi->mutex){+.+.}-{4:4}, at: fuse_lock_inode+0xd4/0x11c [ 186.091764][ T31] [ 186.091766][ T31] ============================================= [ 186.091766][ T31] [ 186.091772][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 186.156450][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT [ 186.157858][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 186.159596][ T31] Call trace: [ 186.160102][ T31] show_stack+0x2c/0x3c (C) [ 186.160842][ T31] __dump_stack+0x30/0x40 [ 186.161554][ T31] dump_stack_lvl+0x30/0x12c [ 186.162291][ T31] dump_stack+0x1c/0x28 [ 186.162962][ T31] vpanic+0x594/0xaf8 [ 186.163588][ T31] vpanic+0x0/0xaf8 [ 186.164228][ T31] hung_task_panic+0x0/0x2c [ 186.164937][ T31] kthread+0x304/0x3d4 [ 186.165608][ T31] ret_from_fork+0x10/0x20 [ 186.166337][ T31] SMP: stopping secondary CPUs [ 186.167084][ T31] Kernel Offset: disabled [ 186.167805][ T31] CPU features: 0x14000000,003c0008,27020a02,a84ff6a7 [ 186.168931][ T31] Memory Limit: none [ 186.386906][ T31] Rebooting in 86400 seconds..