Warning: Permanently added '10.128.1.179' (ED25519) to the list of known hosts. 2026/04/07 14:14:32 parsed 1 programs [ 123.470107][ T6144] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 126.592003][ T3533] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 126.601027][ T3533] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 126.626670][ T3028] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 126.635044][ T3028] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 126.755540][ T5922] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 126.769188][ T5922] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 126.782356][ T5922] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 126.791308][ T5922] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 126.804653][ T5922] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 128.883727][ T6214] chnl_net:caif_netlink_parms(): no params data found [ 128.978652][ T6214] bridge0: port 1(bridge_slave_0) entered blocking state [ 128.986051][ T6214] bridge0: port 1(bridge_slave_0) entered disabled state [ 128.993446][ T6214] bridge_slave_0: entered allmulticast mode [ 129.000652][ T6214] bridge_slave_0: entered promiscuous mode [ 129.010960][ T6214] bridge0: port 2(bridge_slave_1) entered blocking state [ 129.018416][ T6214] bridge0: port 2(bridge_slave_1) entered disabled state [ 129.026132][ T6214] bridge_slave_1: entered allmulticast mode [ 129.033324][ T6214] bridge_slave_1: entered promiscuous mode [ 129.069805][ T6214] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 129.081557][ T6214] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 129.110494][ T6214] team0: Port device team_slave_0 added [ 129.118304][ T6214] team0: Port device team_slave_1 added [ 129.143069][ T6214] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 129.150066][ T6214] 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. [ 129.177249][ T6214] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 129.190084][ T6214] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 129.197313][ T6214] 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. [ 129.225652][ T6214] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 129.268315][ T6214] hsr_slave_0: entered promiscuous mode [ 129.276745][ T6214] hsr_slave_1: entered promiscuous mode [ 129.727257][ T6214] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 129.739154][ T6214] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 129.751506][ T6214] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 129.763799][ T6214] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 129.888543][ T6214] 8021q: adding VLAN 0 to HW filter on device bond0 [ 129.914854][ T6214] 8021q: adding VLAN 0 to HW filter on device team0 [ 129.929292][ T3533] bridge0: port 1(bridge_slave_0) entered blocking state [ 129.936527][ T3533] bridge0: port 1(bridge_slave_0) entered forwarding state [ 129.953006][ T3533] bridge0: port 2(bridge_slave_1) entered blocking state [ 129.960468][ T3533] bridge0: port 2(bridge_slave_1) entered forwarding state [ 130.240893][ T6214] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 130.300907][ T6214] veth0_vlan: entered promiscuous mode [ 130.316548][ T6214] veth1_vlan: entered promiscuous mode [ 130.360106][ T6214] veth0_macvtap: entered promiscuous mode [ 130.374466][ T6214] veth1_macvtap: entered promiscuous mode [ 130.399415][ T6214] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 130.415576][ T6214] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 130.431428][ T1112] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 130.453319][ T1112] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 130.477612][ T1112] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 130.490752][ T1112] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 130.653440][ T1112] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 130.739797][ T1112] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 130.808620][ T1112] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 130.915585][ T1112] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/04/07 14:14:44 executed programs: 0 [ 131.383033][ T5146] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 131.391654][ T5146] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 131.410451][ T5146] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 131.424376][ T5146] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 131.432889][ T5146] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 131.709892][ T6289] chnl_net:caif_netlink_parms(): no params data found [ 131.848437][ T6289] bridge0: port 1(bridge_slave_0) entered blocking state [ 131.856041][ T6289] bridge0: port 1(bridge_slave_0) entered disabled state [ 131.863347][ T6289] bridge_slave_0: entered allmulticast mode [ 131.871223][ T6289] bridge_slave_0: entered promiscuous mode [ 131.881333][ T6289] bridge0: port 2(bridge_slave_1) entered blocking state [ 131.888714][ T6289] bridge0: port 2(bridge_slave_1) entered disabled state [ 131.895996][ T6289] bridge_slave_1: entered allmulticast mode [ 131.904648][ T6289] bridge_slave_1: entered promiscuous mode [ 131.954664][ T6289] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 131.971678][ T6289] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 132.021067][ T6289] team0: Port device team_slave_0 added [ 132.030780][ T6289] team0: Port device team_slave_1 added [ 132.078790][ T6289] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 132.086365][ T6289] 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. [ 132.113611][ T6289] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 132.134784][ T6289] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 132.141752][ T6289] 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. [ 132.167889][ T6289] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 132.249131][ T6289] hsr_slave_0: entered promiscuous mode [ 132.256969][ T6289] hsr_slave_1: entered promiscuous mode [ 132.264172][ T6289] debugfs: 'hsr0' already exists in 'hsr' [ 132.270005][ T6289] Cannot create hsr debugfs directory [ 132.926759][ T1300] ieee802154 phy0 wpan0: encryption failed: -22 [ 132.939963][ T1300] ieee802154 phy1 wpan1: encryption failed: -22 [ 133.081722][ T1112] bridge_slave_1: left allmulticast mode [ 133.094210][ T1112] bridge_slave_1: left promiscuous mode [ 133.100042][ T1112] bridge0: port 2(bridge_slave_1) entered disabled state [ 133.116946][ T1112] bridge_slave_0: left allmulticast mode [ 133.132979][ T1112] bridge_slave_0: left promiscuous mode [ 133.138818][ T1112] bridge0: port 1(bridge_slave_0) entered disabled state [ 133.362425][ T1112] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 133.376377][ T1112] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 133.386941][ T1112] bond0 (unregistering): Released all slaves [ 133.482544][ T5922] Bluetooth: hci0: command tx timeout [ 133.494677][ T1112] hsr_slave_0: left promiscuous mode [ 133.501855][ T1112] hsr_slave_1: left promiscuous mode [ 133.511812][ T1112] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 133.521619][ T1112] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 133.529740][ T1112] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 133.537220][ T1112] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 133.548674][ T1112] veth1_macvtap: left promiscuous mode [ 133.554299][ T1112] veth0_macvtap: left promiscuous mode [ 133.559879][ T1112] veth1_vlan: left promiscuous mode [ 133.565490][ T1112] veth0_vlan: left promiscuous mode [ 133.854454][ T1112] team0 (unregistering): Port device team_slave_1 removed [ 133.878612][ T1112] team0 (unregistering): Port device team_slave_0 removed [ 134.271930][ T6289] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 134.288373][ T6289] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 134.312596][ T6289] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 134.337267][ T6289] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 134.465596][ T6289] 8021q: adding VLAN 0 to HW filter on device bond0 [ 134.498453][ T6289] 8021q: adding VLAN 0 to HW filter on device team0 [ 134.511984][ T3533] bridge0: port 1(bridge_slave_0) entered blocking state [ 134.519167][ T3533] bridge0: port 1(bridge_slave_0) entered forwarding state [ 134.541225][ T3028] bridge0: port 2(bridge_slave_1) entered blocking state [ 134.548481][ T3028] bridge0: port 2(bridge_slave_1) entered forwarding state [ 134.960946][ T6289] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 135.020866][ T6289] veth0_vlan: entered promiscuous mode [ 135.039381][ T6289] veth1_vlan: entered promiscuous mode [ 135.083897][ T6289] veth0_macvtap: entered promiscuous mode [ 135.096057][ T6289] veth1_macvtap: entered promiscuous mode [ 135.121514][ T6289] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 135.139054][ T6289] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 135.157049][ T1112] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 135.190454][ T1112] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 135.209562][ T1112] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 135.220507][ T1112] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 135.287436][ T1112] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 135.308823][ T1112] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 135.346319][ T3028] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 135.355013][ T3028] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 135.562207][ T5922] Bluetooth: hci0: command tx timeout 2026/04/07 14:14:49 executed programs: 25 [ 137.644354][ T5922] Bluetooth: hci0: command tx timeout [ 139.723049][ T5922] Bluetooth: hci0: command tx timeout [ 194.364598][ T1300] ieee802154 phy0 wpan0: encryption failed: -22 [ 194.370940][ T1300] ieee802154 phy1 wpan1: encryption failed: -22 [ 255.805855][ T1300] ieee802154 phy0 wpan0: encryption failed: -22 [ 255.813530][ T1300] ieee802154 phy1 wpan1: encryption failed: -22 [ 257.883481][ T5922] Bluetooth: hci0: command 0x0406 tx timeout [ 285.882319][ T30] INFO: task kworker/u8:3:49 blocked for more than 143 seconds. [ 285.890015][ T30] Not tainted syzkaller #0 [ 285.895159][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 285.904611][ T30] task:kworker/u8:3 state:D stack:23512 pid:49 tgid:49 ppid:2 task_flags:0x4248160 flags:0x00080000 [ 285.916806][ T30] Workqueue: writeback wb_workfn (flush-8:0) [ 285.922909][ T30] Call Trace: [ 285.926238][ T30] [ 285.929193][ T30] __schedule+0xfee/0x6120 [ 285.933782][ T30] ? __pfx_blk_mq_flush_plug_list+0x10/0x10 [ 285.939720][ T30] ? __lock_acquire+0x4a5/0x2630 [ 285.944709][ T30] ? __blk_flush_plug+0x2f3/0x4b0 [ 285.949773][ T30] ? __pfx___schedule+0x10/0x10 [ 285.954716][ T30] ? find_held_lock+0x2b/0x80 [ 285.959612][ T30] ? schedule+0x2bf/0x390 [ 285.964037][ T30] ? rq_qos_wait+0x21c/0x330 [ 285.968648][ T30] schedule+0xdd/0x390 [ 285.972739][ T30] io_schedule+0x8a/0xf0 [ 285.977010][ T30] rq_qos_wait+0x22d/0x330 [ 285.981419][ T30] ? __pfx_rq_qos_wait+0x10/0x10 [ 285.986391][ T30] ? __pfx_rq_qos_wake_function+0x10/0x10 [ 285.992252][ T30] ? __pfx_wbt_inflight_cb+0x10/0x10 [ 285.997629][ T30] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 286.004127][ T30] wbt_wait+0x18a/0x310 [ 286.008337][ T30] ? __pfx_wbt_wait+0x10/0x10 [ 286.013127][ T30] ? blk_rq_merge_ok+0xa1/0x5c0 [ 286.018035][ T30] ? __pfx_dd_bio_merge+0x10/0x10 [ 286.023126][ T30] ? __pfx_wbt_wait+0x10/0x10 [ 286.027851][ T30] __rq_qos_throttle+0x56/0xa0 [ 286.032865][ T30] blk_mq_submit_bio+0xb68/0x2bf0 [ 286.038033][ T30] ? __pfx_blk_mq_submit_bio+0x10/0x10 [ 286.043677][ T30] ? rcu_is_watching+0x12/0xc0 [ 286.048662][ T30] __submit_bio+0x1e1/0x6c0 [ 286.053229][ T30] ? __pfx___submit_bio+0x10/0x10 [ 286.058389][ T30] ? __pfx_blk_cgroup_bio_start+0x10/0x10 [ 286.064185][ T30] ? submit_bio_noacct_nocheck+0x562/0xc10 [ 286.070213][ T30] submit_bio_noacct_nocheck+0x562/0xc10 [ 286.075981][ T30] ? pfn_valid+0x2ce/0x4e0 [ 286.080432][ T30] ? __pfx_submit_bio_noacct_nocheck+0x10/0x10 [ 286.086691][ T30] ? __pfx___might_resched+0x10/0x10 [ 286.092013][ T30] ? bvec_try_merge_page+0x1cd/0x290 [ 286.097381][ T30] submit_bio_noacct+0xd17/0x2010 [ 286.102597][ T30] ext4_io_submit+0xf7/0x1a0 [ 286.107623][ T30] ext4_bio_write_folio+0x766/0x1e00 [ 286.113091][ T30] mpage_process_page_bufs+0x473/0x8d0 [ 286.118591][ T30] mpage_prepare_extent_to_map+0xb50/0x1920 [ 286.124551][ T30] ? __pfx_mpage_prepare_extent_to_map+0x10/0x10 [ 286.130936][ T30] ? kmem_cache_alloc_noprof+0x292/0x6e0 [ 286.136690][ T30] ? ext4_init_io_end+0x24/0x170 [ 286.141823][ T30] ext4_do_writepages+0x9f9/0x3f50 [ 286.147094][ T30] ? __pfx_ext4_do_writepages+0x10/0x10 [ 286.152717][ T30] ? ext4_writepages+0x347/0x790 [ 286.157800][ T30] ext4_writepages+0x347/0x790 [ 286.162811][ T30] ? __pfx_ext4_writepages+0x10/0x10 [ 286.168159][ T30] ? do_writepages+0x4b5/0x600 [ 286.173010][ T30] ? do_writepages+0x4b5/0x600 [ 286.177801][ T30] ? __pfx_ext4_writepages+0x10/0x10 [ 286.183149][ T30] do_writepages+0x278/0x600 [ 286.187768][ T30] ? __pfx_do_writepages+0x10/0x10 [ 286.192945][ T30] __writeback_single_inode+0x164/0x13c0 [ 286.198614][ T30] ? find_held_lock+0x2b/0x80 [ 286.206336][ T30] ? __pfx___writeback_single_inode+0x10/0x10 [ 286.212998][ T30] ? do_raw_spin_unlock+0x145/0x1e0 [ 286.218267][ T30] writeback_sb_inodes+0x766/0x1c70 [ 286.223560][ T30] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 286.229243][ T30] ? _raw_spin_unlock+0x28/0x50 [ 286.234161][ T30] ? move_expired_inodes+0x5ea/0x8f0 [ 286.239518][ T30] __writeback_inodes_wb+0xf8/0x2d0 [ 286.244795][ T30] ? __pfx___writeback_inodes_wb+0x10/0x10 [ 286.250678][ T30] ? queue_io+0x287/0x550 [ 286.255068][ T30] wb_writeback+0x755/0xbe0 [ 286.259647][ T30] ? __pfx_wb_writeback+0x10/0x10 [ 286.264814][ T30] ? get_nr_inodes+0x100/0x150 [ 286.269609][ T30] ? _raw_spin_unlock_irq+0x23/0x50 [ 286.274928][ T30] wb_workfn+0x8c6/0xc00 [ 286.279217][ T30] ? try_to_wake_up+0x160/0x1a80 [ 286.284308][ T30] ? __pfx_wb_workfn+0x10/0x10 [ 286.289300][ T30] ? rcu_is_watching+0x12/0xc0 [ 286.294170][ T30] process_one_work+0xa23/0x19a0 [ 286.299149][ T30] ? __pfx_process_one_work+0x10/0x10 [ 286.304581][ T30] ? __pfx_wb_workfn+0x10/0x10 [ 286.309865][ T30] worker_thread+0x5ef/0xe50 [ 286.314585][ T30] ? __pfx_worker_thread+0x10/0x10 [ 286.319749][ T30] ? kthread+0x13a/0x450 [ 286.324033][ T30] ? __pfx_worker_thread+0x10/0x10 [ 286.329176][ T30] kthread+0x370/0x450 [ 286.333314][ T30] ? __pfx_kthread+0x10/0x10 [ 286.337929][ T30] ret_from_fork+0x754/0xd80 [ 286.342572][ T30] ? __pfx_ret_from_fork+0x10/0x10 [ 286.347808][ T30] ? __switch_to+0x7b4/0x1120 [ 286.352523][ T30] ? __pfx_kthread+0x10/0x10 [ 286.357155][ T30] ret_from_fork_asm+0x1a/0x30 [ 286.361941][ T30] [ 286.365157][ T30] INFO: task syz.0.199:6792 blocked for more than 143 seconds. [ 286.372869][ T30] Not tainted syzkaller #0 [ 286.377899][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.386605][ T30] task:syz.0.199 state:D stack:28440 pid:6792 tgid:6792 ppid:6289 task_flags:0x440040 flags:0x00080002 [ 286.398960][ T30] Call Trace: [ 286.402299][ T30] [ 286.405248][ T30] __schedule+0xfee/0x6120 [ 286.409791][ T30] ? __lock_acquire+0x4a5/0x2630 [ 286.415331][ T30] ? __pfx___schedule+0x10/0x10 [ 286.420227][ T30] ? find_held_lock+0x2b/0x80 [ 286.424998][ T30] ? schedule+0x2bf/0x390 [ 286.429445][ T30] schedule+0xdd/0x390 [ 286.433577][ T30] io_schedule+0x8a/0xf0 [ 286.437883][ T30] bit_wait_io+0xd/0xe0 [ 286.442130][ T30] __wait_on_bit+0x65/0x180 [ 286.446658][ T30] ? __pfx_bit_wait_io+0x10/0x10 [ 286.451601][ T30] out_of_line_wait_on_bit+0xdc/0x110 [ 286.457031][ T30] ? __pfx_out_of_line_wait_on_bit+0x10/0x10 [ 286.463066][ T30] ? __pfx_wake_bit_function+0x10/0x10 [ 286.468542][ T30] do_get_write_access+0x880/0x1210 [ 286.473782][ T30] ? jbd2_write_access_granted+0x61/0x3d0 [ 286.479537][ T30] jbd2_journal_get_write_access+0x1d6/0x280 [ 286.485655][ T30] __ext4_journal_get_write_access+0x6a/0x340 [ 286.491806][ T30] ext4_reserve_inode_write+0x1b7/0x330 [ 286.497478][ T30] __ext4_mark_inode_dirty+0x18f/0x8b0 [ 286.503034][ T30] ? __pfx___ext4_mark_inode_dirty+0x10/0x10 [ 286.509028][ T30] ? trace_jbd2_handle_start+0x83/0x270 [ 286.515359][ T30] ? jbd2__journal_start+0xf7/0x6a0 [ 286.520595][ T30] ? __ext4_journal_start_sb+0x382/0x6a0 [ 286.526297][ T30] ? __ext4_journal_start_sb+0x1ce/0x6a0 [ 286.531982][ T30] ? ext4_dirty_inode+0xa1/0x130 [ 286.537019][ T30] ? __pfx_ext4_dirty_inode+0x10/0x10 [ 286.542440][ T30] ext4_dirty_inode+0xd9/0x130 [ 286.547208][ T30] ? rcu_is_watching+0x12/0xc0 [ 286.552006][ T30] __mark_inode_dirty+0x1f3/0x1790 [ 286.557244][ T30] file_update_time_flags+0x46b/0x500 [ 286.562704][ T30] ext4_page_mkwrite+0x35b/0x1980 [ 286.567781][ T30] ? __pfx_ext4_page_mkwrite+0x10/0x10 [ 286.573287][ T30] do_page_mkwrite+0x17a/0x440 [ 286.578070][ T30] do_fault+0x3d7/0x18e0 [ 286.582437][ T30] ? __pmd_alloc+0x3fb/0x950 [ 286.587052][ T30] __handle_mm_fault+0x1815/0x2b60 [ 286.592352][ T30] ? reacquire_held_locks+0xce/0x1e0 [ 286.597689][ T30] ? __pfx___handle_mm_fault+0x10/0x10 [ 286.603232][ T30] ? lock_vma_under_rcu+0x17c/0x590 [ 286.608500][ T30] handle_mm_fault+0x36d/0xa20 [ 286.613320][ T30] do_user_addr_fault+0x5a3/0x12f0 [ 286.618898][ T30] exc_page_fault+0x6f/0xd0 [ 286.623516][ T30] asm_exc_page_fault+0x26/0x30 [ 286.628578][ T30] RIP: 0033:0x7f9bcc066bcb [ 286.633129][ T30] RSP: 002b:00007ffc568cfff0 EFLAGS: 00010246 [ 286.639218][ T30] RAX: 000000000003fde8 RBX: 0000000000000000 RCX: 0000000000000000 [ 286.647224][ T30] RDX: 0000001b2cb20000 RSI: 0000000000040000 RDI: 00007f9bcc38a710 [ 286.655245][ T30] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 286.663256][ T30] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 286.671360][ T30] R13: 0000000000000000 R14: 000000000002244f R15: 00007ffc568d0280 [ 286.679423][ T30] [ 286.682561][ T30] [ 286.682561][ T30] Showing all locks held in the system: [ 286.690309][ T30] 1 lock held by khungtaskd/30: [ 286.695224][ T30] #0: ffffffff8e7e7760 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x3d/0x184 [ 286.705273][ T30] 4 locks held by kworker/u8:3/49: [ 286.710373][ T30] #0: ffff888020eb1148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x1310/0x19a0 [ 286.721676][ T30] #1: ffffc90000b97d08 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x988/0x19a0 [ 286.733693][ T30] #2: ffff8880370da0e0 (&type->s_umount_key#34){++++}-{4:4}, at: super_trylock_shared+0x1e/0xf0 [ 286.744522][ T30] #3: ffff8880370d8c18 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: do_writepages+0x278/0x600 [ 286.754942][ T30] 2 locks held by kworker/u8:10/3533: [ 286.760331][ T30] 1 lock held by klogd/5184: [ 286.765101][ T30] 2 locks held by getty/5585: [ 286.769798][ T30] #0: ffff8880380320a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 [ 286.779633][ T30] #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x419/0x1500 [ 286.789827][ T30] 3 locks held by syz.0.199/6792: [ 286.794890][ T30] #0: ffff88807a0bf1c8 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x11d/0x590 [ 286.804313][ T30] #1: ffff8880370da518 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x17a/0x440 [ 286.813854][ T30] #2: ffff888037126950 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xfaa/0x13a0 [ 286.823908][ T30] 3 locks held by syz-executor/6793: [ 286.829208][ T30] #0: ffff8880370da420 (sb_writers#4){.+.+}-{0:0}, at: filename_create+0x10d/0x400 [ 286.838665][ T30] #1: ffff888079d37700 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1c0/0x400 [ 286.849464][ T30] #2: ffff888037126950 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xfaa/0x13a0 [ 286.859127][ T30] [ 286.861457][ T30] ============================================= [ 286.861457][ T30] [ 286.869919][ T30] NMI backtrace for cpu 1 [ 286.869957][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 286.869984][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 286.869996][ T30] Call Trace: [ 286.870003][ T30] [ 286.870012][ T30] dump_stack_lvl+0x100/0x190 [ 286.870051][ T30] nmi_cpu_backtrace.cold+0x12d/0x151 [ 286.870089][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 286.870127][ T30] nmi_trigger_cpumask_backtrace+0x1d7/0x230 [ 286.870163][ T30] sys_info+0x141/0x190 [ 286.870193][ T30] watchdog+0xd25/0x1050 [ 286.870230][ T30] ? __pfx_watchdog+0x10/0x10 [ 286.870259][ T30] ? __kthread_parkme+0x18c/0x230 [ 286.870293][ T30] ? kthread+0x13a/0x450 [ 286.870326][ T30] ? __pfx_watchdog+0x10/0x10 [ 286.870351][ T30] kthread+0x370/0x450 [ 286.870384][ T30] ? __pfx_kthread+0x10/0x10 [ 286.870422][ T30] ret_from_fork+0x754/0xd80 [ 286.870464][ T30] ? __pfx_ret_from_fork+0x10/0x10 [ 286.870508][ T30] ? __switch_to+0x7b4/0x1120 [ 286.870539][ T30] ? __pfx_kthread+0x10/0x10 [ 286.870578][ T30] ret_from_fork_asm+0x1a/0x30 [ 286.870625][ T30] [ 286.870634][ T30] Sending NMI from CPU 1 to CPUs 0: [ 286.991146][ C0] NMI backtrace for cpu 0 [ 286.991164][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) [ 286.991193][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 286.991208][ C0] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ 286.991237][ C0] Code: 98 84 02 c3 cc cc cc cc 0f 1f 00 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 43 f0 1c 00 fb f4 fc 35 03 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 [ 286.991260][ C0] RSP: 0018:ffffffff8e407e00 EFLAGS: 00000246 [ 286.991279][ C0] RAX: 0000000000128111 RBX: ffffffff8e4975c0 RCX: ffffffff8b8e9c75 [ 286.991295][ C0] RDX: 0000000000000000 RSI: ffffffff8de8361d RDI: ffffffff8c1b1da0 [ 286.991310][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed101708679d [ 286.991325][ C0] R10: ffff8880b8433ceb R11: 0000000000000000 R12: 0000000000000000 [ 286.991340][ C0] R13: fffffbfff1c92eb8 R14: 0000000000000000 R15: ffffffff90d9ff10 [ 286.991360][ C0] FS: 0000000000000000(0000) GS:ffff888124340000(0000) knlGS:0000000000000000 [ 286.991383][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 286.991398][ C0] CR2: 00005649a6000048 CR3: 000000000e598000 CR4: 00000000003526f0 [ 286.991414][ C0] Call Trace: [ 286.991423][ C0] [ 286.991431][ C0] default_idle+0x9/0x10 [ 286.991459][ C0] default_idle_call+0x6c/0xb0 [ 286.991488][ C0] do_idle+0x464/0x590 [ 286.991513][ C0] ? __pfx_do_idle+0x10/0x10 [ 286.991541][ C0] cpu_startup_entry+0x4f/0x60 [ 286.991565][ C0] rest_init+0x251/0x260 [ 286.991594][ C0] ? __pfx_x86_late_time_init+0x10/0x10 [ 286.991634][ C0] start_kernel+0x47f/0x480 [ 286.991669][ C0] x86_64_start_reservations+0x24/0x30 [ 286.991706][ C0] x86_64_start_kernel+0x12b/0x130 [ 286.991742][ C0] common_startup_64+0x13e/0x148 [ 286.991775][ C0] [ 286.992119][ T30] Kernel panic - not syncing: hung_task: blocked tasks [ 286.992135][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 286.992166][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 286.992181][ T30] Call Trace: [ 286.992190][ T30] [ 286.992200][ T30] dump_stack_lvl+0x100/0x190 [ 286.992242][ T30] vpanic+0x552/0x970 [ 286.992269][ T30] ? __pfx_vpanic+0x10/0x10 [ 286.992295][ T30] ? nmi_trigger_cpumask_backtrace+0x182/0x230 [ 286.992333][ T30] ? rcu_is_watching+0x12/0xc0 [ 286.992380][ T30] panic+0xd1/0xe0 [ 286.992405][ T30] ? __pfx_panic+0x10/0x10 [ 286.992431][ T30] ? delay_tsc+0x32/0xc0 [ 286.992466][ T30] ? wq_watchdog_touch+0xec/0x1a0 [ 286.992502][ T30] ? nmi_trigger_cpumask_backtrace+0x1be/0x230 [ 286.992535][ T30] ? watchdog.cold+0x198/0x1ca [ 286.992564][ T30] ? watchdog+0xd35/0x1050 [ 286.992594][ T30] watchdog.cold+0x1a9/0x1ca [ 286.992633][ T30] ? __pfx_watchdog+0x10/0x10 [ 286.992661][ T30] ? __kthread_parkme+0x18c/0x230 [ 286.992695][ T30] ? kthread+0x13a/0x450 [ 286.992728][ T30] ? __pfx_watchdog+0x10/0x10 [ 286.992753][ T30] kthread+0x370/0x450 [ 286.992795][ T30] ? __pfx_kthread+0x10/0x10 [ 286.992832][ T30] ret_from_fork+0x754/0xd80 [ 286.992873][ T30] ? __pfx_ret_from_fork+0x10/0x10 [ 286.992915][ T30] ? __switch_to+0x7b4/0x1120 [ 286.992946][ T30] ? __pfx_kthread+0x10/0x10 [ 286.992983][ T30] ret_from_fork_asm+0x1a/0x30 [ 286.993030][ T30] [ 287.320180][ T30] Kernel Offset: disabled [ 287.324502][ T30] Rebooting in 86400 seconds..