Warning: Permanently added '10.128.0.173' (ED25519) to the list of known hosts. 2026/03/23 05:19:15 parsed 1 programs [ 87.816428][ T5828] cgroup: Unknown subsys name 'net' [ 87.946312][ T5828] cgroup: Unknown subsys name 'cpuset' [ 87.955333][ T5828] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 89.577127][ T5828] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 91.912724][ T10] cfg80211: failed to load regulatory.db [ 92.608339][ T5850] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 93.471945][ T5867] chnl_net:caif_netlink_parms(): no params data found [ 93.593950][ T5867] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.601876][ T5867] bridge0: port 1(bridge_slave_0) entered disabled state [ 93.609166][ T5867] bridge_slave_0: entered allmulticast mode [ 93.616958][ T5867] bridge_slave_0: entered promiscuous mode [ 93.629374][ T5867] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.636703][ T5867] bridge0: port 2(bridge_slave_1) entered disabled state [ 93.644004][ T5867] bridge_slave_1: entered allmulticast mode [ 93.652454][ T5867] bridge_slave_1: entered promiscuous mode [ 93.685650][ T5867] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 93.698457][ T5867] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 93.729754][ T5867] team0: Port device team_slave_0 added [ 93.737598][ T5867] team0: Port device team_slave_1 added [ 93.763859][ T5867] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 93.771237][ T5867] 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. [ 93.797281][ T5867] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 93.810749][ T5867] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 93.817732][ T5867] 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. [ 93.844010][ T5867] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 93.889398][ T5867] hsr_slave_0: entered promiscuous mode [ 93.895969][ T5867] hsr_slave_1: entered promiscuous mode [ 94.044966][ T5867] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 94.056988][ T5867] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 94.067405][ T5867] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 94.077419][ T5867] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 94.109060][ T5867] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.116376][ T5867] bridge0: port 2(bridge_slave_1) entered forwarding state [ 94.124288][ T5867] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.131435][ T5867] bridge0: port 1(bridge_slave_0) entered forwarding state [ 94.187050][ T5867] 8021q: adding VLAN 0 to HW filter on device bond0 [ 94.205996][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 94.214949][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 94.229410][ T5867] 8021q: adding VLAN 0 to HW filter on device team0 [ 94.244108][ T48] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.251296][ T48] bridge0: port 1(bridge_slave_0) entered forwarding state [ 94.264392][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.271550][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 94.459877][ T5867] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 94.504011][ T5867] veth0_vlan: entered promiscuous mode [ 94.516344][ T5867] veth1_vlan: entered promiscuous mode [ 94.544935][ T5867] veth0_macvtap: entered promiscuous mode [ 94.557251][ T5867] veth1_macvtap: entered promiscuous mode [ 94.578116][ T5867] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 94.594373][ T5867] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 94.609228][ T48] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.621612][ T48] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.630341][ T48] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.641381][ T48] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.772571][ T48] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 94.845436][ T48] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 94.913416][ T48] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 94.998182][ T48] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 95.052491][ T5144] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 95.060222][ T5144] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 95.068584][ T5144] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 95.077691][ T5144] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 95.085693][ T5144] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 96.547178][ T131] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 96.563864][ T131] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 96.595516][ T36] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 96.605765][ T36] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2026/03/23 05:19:28 executed programs: 0 [ 97.074861][ T51] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 97.084941][ T51] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 97.093651][ T51] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 97.102029][ T51] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 97.111211][ T51] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 97.244018][ T48] bridge_slave_1: left allmulticast mode [ 97.249824][ T48] bridge_slave_1: left promiscuous mode [ 97.257572][ T48] bridge0: port 2(bridge_slave_1) entered disabled state [ 97.269092][ T48] bridge_slave_0: left allmulticast mode [ 97.275830][ T48] bridge_slave_0: left promiscuous mode [ 97.282468][ T48] bridge0: port 1(bridge_slave_0) entered disabled state [ 97.441544][ T48] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 97.452768][ T48] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 97.463157][ T48] bond0 (unregistering): Released all slaves [ 97.552057][ T48] hsr_slave_0: left promiscuous mode [ 97.558311][ T48] hsr_slave_1: left promiscuous mode [ 97.565744][ T48] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 97.573714][ T48] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 97.583309][ T48] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 97.592756][ T48] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 97.608619][ T48] veth1_macvtap: left promiscuous mode [ 97.614426][ T48] veth0_macvtap: left promiscuous mode [ 97.620039][ T48] veth1_vlan: left promiscuous mode [ 97.625689][ T48] veth0_vlan: left promiscuous mode [ 97.929124][ T48] team0 (unregistering): Port device team_slave_1 removed [ 97.959652][ T48] team0 (unregistering): Port device team_slave_0 removed [ 98.227000][ T5937] chnl_net:caif_netlink_parms(): no params data found [ 98.369342][ T5937] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.377037][ T5937] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.394385][ T5937] bridge_slave_0: entered allmulticast mode [ 98.402732][ T5937] bridge_slave_0: entered promiscuous mode [ 98.411710][ T5937] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.418981][ T5937] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.427407][ T5937] bridge_slave_1: entered allmulticast mode [ 98.439897][ T5937] bridge_slave_1: entered promiscuous mode [ 98.494423][ T5937] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 98.514584][ T5937] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 98.572429][ T5937] team0: Port device team_slave_0 added [ 98.581721][ T5937] team0: Port device team_slave_1 added [ 98.999826][ T5937] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 99.006866][ T5937] 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. [ 99.032969][ T5937] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 99.046240][ T5937] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 99.053416][ T5937] 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. [ 99.083261][ T5937] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 99.138690][ T5937] hsr_slave_0: entered promiscuous mode [ 99.145744][ T5937] hsr_slave_1: entered promiscuous mode [ 99.191747][ T5144] Bluetooth: hci0: command tx timeout [ 99.900088][ T5937] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 99.915462][ T5937] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 99.927430][ T5937] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 99.952100][ T5937] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 100.152769][ T5937] 8021q: adding VLAN 0 to HW filter on device bond0 [ 100.197069][ T5937] 8021q: adding VLAN 0 to HW filter on device team0 [ 100.213974][ T131] bridge0: port 1(bridge_slave_0) entered blocking state [ 100.221236][ T131] bridge0: port 1(bridge_slave_0) entered forwarding state [ 100.263324][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 100.270561][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 100.569713][ T5937] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 100.638368][ T5937] veth0_vlan: entered promiscuous mode [ 100.654120][ T5937] veth1_vlan: entered promiscuous mode [ 100.689108][ T5937] veth0_macvtap: entered promiscuous mode [ 100.703191][ T5937] veth1_macvtap: entered promiscuous mode [ 100.724067][ T5937] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 100.736187][ T5937] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 100.758178][ T131] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.767751][ T131] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.781100][ T131] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.789864][ T131] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 100.869984][ T131] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 100.884831][ T131] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 100.922406][ T131] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 100.931026][ T131] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 101.241140][ T6019] nbd0: detected capacity change from 0 to 63 [ 101.257880][ T5144] block nbd0: Receive control failed (result -104) [ 101.265045][ T51] block nbd0: Receive control failed (result -32) [ 101.275860][ T51] Bluetooth: hci0: command tx timeout [ 101.600581][ T6031] nbd1: detected capacity change from 0 to 63 [ 101.611850][ T51] block nbd0: Receive control failed (result -107) [ 101.620002][ T51] [ 101.622367][ T51] ====================================================== [ 101.629399][ T51] WARNING: possible circular locking dependency detected [ 101.630727][ T6031] block nbd0: reconnected socket [ 101.636434][ T51] syzkaller #0 Not tainted [ 101.636447][ T51] ------------------------------------------------------ [ 101.642515][ T5895] block nbd1: Receive control failed (result -104) [ 101.645805][ T51] kworker/u9:0/51 is trying to acquire lock: [ 101.653372][ T6029] block nbd1: Receive control failed (result -32) [ 101.659324][ T51] ffff88801ffbd1e0 (sk_lock-AF_INET6){+.+.}-{0:0}, at: inet_shutdown+0x6a/0x390 [ 101.659403][ T51] [ 101.659403][ T51] but task is already holding lock: [ 101.659411][ T51] ffff888011879a70 (&nsock->tx_lock){+.+.}-{4:4}, at: recv_work+0x1c6a/0x1d90 [ 101.659461][ T51] [ 101.659461][ T51] which lock already depends on the new lock. [ 101.659461][ T51] [ 101.659469][ T51] [ 101.659469][ T51] the existing dependency chain (in reverse order) is: [ 101.659477][ T51] [ 101.659477][ T51] -> #6 (&nsock->tx_lock){+.+.}-{4:4}: [ 101.659509][ T51] __mutex_lock+0x19f/0x1300 [ 101.659532][ T51] nbd_queue_rq+0x37b/0x1100 [ 101.659551][ T51] blk_mq_dispatch_rq_list+0xa70/0x1910 [ 101.659573][ T51] __blk_mq_sched_dispatch_requests+0xdcc/0x1600 [ 101.659598][ T51] blk_mq_sched_dispatch_requests+0xd7/0x190 [ 101.659621][ T51] blk_mq_run_hw_queue+0x348/0x4f0 [ 101.659639][ T51] blk_mq_dispatch_list+0xd16/0xe10 [ 101.659661][ T51] blk_mq_flush_plug_list+0x48d/0x570 [ 101.659682][ T51] __blk_flush_plug+0x3ed/0x4d0 [ 101.659704][ T51] __submit_bio+0x28d/0x580 [ 101.659727][ T51] submit_bio_noacct_nocheck+0x2f4/0xa70 [ 101.659749][ T51] block_read_full_folio+0x599/0x830 [ 101.659775][ T51] filemap_read_folio+0x137/0x3b0 [ 101.659798][ T51] do_read_cache_folio+0x358/0x590 [ 101.804934][ T51] read_part_sector+0xb6/0x2b0 [ 101.810242][ T51] adfspart_check_ICS+0xa5/0xa40 [ 101.815719][ T51] bdev_disk_changed+0x7ba/0x1550 [ 101.821278][ T51] blkdev_get_whole+0x380/0x510 [ 101.826674][ T51] bdev_open+0x31e/0xd30 [ 101.831449][ T51] blkdev_open+0x470/0x610 [ 101.836402][ T51] do_dentry_open+0x785/0x14e0 [ 101.841711][ T51] vfs_open+0x3b/0x340 [ 101.846321][ T51] path_openat+0x2e08/0x3860 [ 101.851445][ T51] do_file_open+0x23e/0x4a0 [ 101.856489][ T51] do_sys_openat2+0x113/0x200 [ 101.861713][ T51] __x64_sys_openat+0x138/0x170 [ 101.867109][ T51] do_syscall_64+0x14d/0xf80 [ 101.872239][ T51] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 101.878697][ T51] [ 101.878697][ T51] -> #5 (&cmd->lock){+.+.}-{4:4}: [ 101.885927][ T51] __mutex_lock+0x19f/0x1300 [ 101.891067][ T51] nbd_queue_rq+0xc6/0x1100 [ 101.896109][ T51] blk_mq_dispatch_rq_list+0xa70/0x1910 [ 101.902190][ T51] __blk_mq_sched_dispatch_requests+0xdcc/0x1600 [ 101.909059][ T51] blk_mq_sched_dispatch_requests+0xd7/0x190 [ 101.915579][ T51] blk_mq_run_hw_queue+0x348/0x4f0 [ 101.921262][ T51] blk_mq_dispatch_list+0xd16/0xe10 [ 101.927002][ T51] blk_mq_flush_plug_list+0x48d/0x570 [ 101.932929][ T51] __blk_flush_plug+0x3ed/0x4d0 [ 101.938354][ T51] __submit_bio+0x28d/0x580 [ 101.943393][ T51] submit_bio_noacct_nocheck+0x2f4/0xa70 [ 101.949560][ T51] block_read_full_folio+0x599/0x830 [ 101.955384][ T51] filemap_read_folio+0x137/0x3b0 [ 101.960946][ T51] do_read_cache_folio+0x358/0x590 [ 101.966600][ T51] read_part_sector+0xb6/0x2b0 [ 101.971903][ T51] adfspart_check_ICS+0xa5/0xa40 [ 101.977379][ T51] bdev_disk_changed+0x7ba/0x1550 [ 101.982958][ T51] blkdev_get_whole+0x380/0x510 [ 101.988346][ T51] bdev_open+0x31e/0xd30 [ 101.993118][ T51] blkdev_open+0x470/0x610 [ 101.998068][ T51] do_dentry_open+0x785/0x14e0 [ 102.003371][ T51] vfs_open+0x3b/0x340 [ 102.007983][ T51] path_openat+0x2e08/0x3860 [ 102.013108][ T51] do_file_open+0x23e/0x4a0 [ 102.018148][ T51] do_sys_openat2+0x113/0x200 [ 102.023367][ T51] __x64_sys_openat+0x138/0x170 [ 102.028757][ T51] do_syscall_64+0x14d/0xf80 [ 102.033905][ T51] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 102.040341][ T51] [ 102.040341][ T51] -> #4 (set->srcu){.+.+}-{0:0}: [ 102.047482][ T51] __synchronize_srcu+0xca/0x3e0 [ 102.052962][ T51] elevator_switch+0x1e8/0x7a0 [ 102.058259][ T51] elevator_change+0x2cc/0x450 [ 102.063565][ T51] elevator_set_default+0x36c/0x430 [ 102.069308][ T51] blk_register_queue+0x366/0x430 [ 102.074875][ T51] __add_disk+0x677/0xd50 [ 102.079755][ T51] add_disk_fwnode+0xfb/0x480 [ 102.084982][ T51] nbd_dev_add+0x72c/0xb50 [ 102.089935][ T51] nbd_init+0x168/0x1f0 [ 102.094680][ T51] do_one_initcall+0x250/0x8d0 [ 102.099983][ T51] do_initcall_level+0x104/0x190 [ 102.105465][ T51] do_initcalls+0x59/0xa0 [ 102.110332][ T51] kernel_init_freeable+0x2a6/0x3e0 [ 102.116075][ T51] kernel_init+0x1d/0x1d0 [ 102.120951][ T51] ret_from_fork+0x51e/0xb90 [ 102.126084][ T51] ret_from_fork_asm+0x1a/0x30 [ 102.131394][ T51] [ 102.131394][ T51] -> #3 (&q->elevator_lock){+.+.}-{4:4}: [ 102.139243][ T51] __mutex_lock+0x19f/0x1300 [ 102.144404][ T51] elevator_change+0x1b3/0x450 [ 102.149715][ T51] elevator_set_none+0xb5/0x140 [ 102.155099][ T51] blk_mq_update_nr_hw_queues+0x5e7/0x1a60 [ 102.161443][ T51] nbd_start_device+0x17f/0xb10 [ 102.166832][ T51] nbd_genl_connect+0x165b/0x1cf0 [ 102.172396][ T51] genl_family_rcv_msg_doit+0x22a/0x330 [ 102.178475][ T51] genl_rcv_msg+0x61c/0x7a0 [ 102.183522][ T51] netlink_rcv_skb+0x232/0x4b0 [ 102.188825][ T51] genl_rcv+0x28/0x40 [ 102.193340][ T51] netlink_unicast+0x80f/0x9b0 [ 102.198650][ T51] netlink_sendmsg+0x813/0xb40 [ 102.203952][ T51] ____sys_sendmsg+0x972/0x9f0 [ 102.209342][ T51] ___sys_sendmsg+0x2a5/0x360 [ 102.214556][ T51] __x64_sys_sendmsg+0x1bd/0x2a0 [ 102.220043][ T51] do_syscall_64+0x14d/0xf80 [ 102.225177][ T51] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 102.231605][ T51] [ 102.231605][ T51] -> #2 (&q->q_usage_counter(io)#49){++++}-{0:0}: [ 102.240244][ T51] blk_alloc_queue+0x546/0x680 [ 102.245571][ T51] __blk_mq_alloc_disk+0x197/0x390 [ 102.251230][ T51] nbd_dev_add+0x499/0xb50 [ 102.256207][ T51] nbd_init+0x168/0x1f0 [ 102.260903][ T51] do_one_initcall+0x250/0x8d0 [ 102.266207][ T51] do_initcall_level+0x104/0x190 [ 102.271685][ T51] do_initcalls+0x59/0xa0 [ 102.276559][ T51] kernel_init_freeable+0x2a6/0x3e0 [ 102.282292][ T51] kernel_init+0x1d/0x1d0 [ 102.287163][ T51] ret_from_fork+0x51e/0xb90 [ 102.292293][ T51] ret_from_fork_asm+0x1a/0x30 [ 102.297601][ T51] [ 102.297601][ T51] -> #1 (fs_reclaim){+.+.}-{0:0}: [ 102.304837][ T51] fs_reclaim_acquire+0x71/0x100 [ 102.310314][ T51] kmem_cache_alloc_node_noprof+0x4a/0x690 [ 102.316668][ T51] __alloc_skb+0x1d0/0x7d0 [ 102.321618][ T51] __ip6_append_data+0x2a44/0x3c50 [ 102.327286][ T51] ip6_append_data+0x10f/0x280 [ 102.332619][ T51] rawv6_sendmsg+0x12d3/0x18e0 [ 102.337915][ T51] ____sys_sendmsg+0x80a/0x9f0 [ 102.343240][ T51] ___sys_sendmsg+0x2a5/0x360 [ 102.348489][ T51] __x64_sys_sendmsg+0x1bd/0x2a0 [ 102.353988][ T51] do_syscall_64+0x14d/0xf80 [ 102.359114][ T51] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 102.365541][ T51] [ 102.365541][ T51] -> #0 (sk_lock-AF_INET6){+.+.}-{0:0}: [ 102.373286][ T51] __lock_acquire+0x15a5/0x2cf0 [ 102.378684][ T51] lock_acquire+0xf0/0x2e0 [ 102.383639][ T51] lock_sock_nested+0x48/0x100 [ 102.388942][ T51] inet_shutdown+0x6a/0x390 [ 102.393995][ T51] nbd_mark_nsock_dead+0x2e9/0x560 [ 102.399668][ T51] recv_work+0x1c7f/0x1d90 [ 102.404623][ T51] process_scheduled_works+0xb6e/0x18c0 [ 102.410706][ T51] worker_thread+0xa53/0xfc0 [ 102.415837][ T51] kthread+0x388/0x470 [ 102.420440][ T51] ret_from_fork+0x51e/0xb90 [ 102.425572][ T51] ret_from_fork_asm+0x1a/0x30 [ 102.430877][ T51] [ 102.430877][ T51] other info that might help us debug this: [ 102.430877][ T51] [ 102.441113][ T51] Chain exists of: [ 102.441113][ T51] sk_lock-AF_INET6 --> &cmd->lock --> &nsock->tx_lock [ 102.441113][ T51] [ 102.453825][ T51] Possible unsafe locking scenario: [ 102.453825][ T51] [ 102.461301][ T51] CPU0 CPU1 [ 102.466690][ T51] ---- ---- [ 102.472078][ T51] lock(&nsock->tx_lock); [ 102.476527][ T51] lock(&cmd->lock); [ 102.483050][ T51] lock(&nsock->tx_lock); [ 102.490013][ T51] lock(sk_lock-AF_INET6); [ 102.494535][ T51] [ 102.494535][ T51] *** DEADLOCK *** [ 102.494535][ T51] [ 102.502686][ T51] 3 locks held by kworker/u9:0/51: [ 102.507804][ T51] #0: ffff8880266d2148 ((wq_completion)nbd0-recv){+.+.}-{0:0}, at: process_scheduled_works+0xa52/0x18c0 [ 102.519062][ T51] #1: ffffc90000bb7c40 ((work_completion)(&args->work)#3){+.+.}-{0:0}, at: process_scheduled_works+0xa8d/0x18c0 [ 102.531025][ T51] #2: ffff888011879a70 (&nsock->tx_lock){+.+.}-{4:4}, at: recv_work+0x1c6a/0x1d90 [ 102.540390][ T51] [ 102.540390][ T51] stack backtrace: [ 102.546320][ T51] CPU: 1 UID: 0 PID: 51 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) [ 102.546342][ T51] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 102.546354][ T51] Workqueue: nbd0-recv recv_work [ 102.546386][ T51] Call Trace: [ 102.546396][ T51] [ 102.546403][ T51] dump_stack_lvl+0xe8/0x150 [ 102.546428][ T51] print_circular_bug+0x2e1/0x300 [ 102.546457][ T51] check_noncircular+0x12e/0x150 [ 102.546484][ T51] __lock_acquire+0x15a5/0x2cf0 [ 102.546511][ T51] ? preempt_schedule_notrace+0x57/0x90 [ 102.546530][ T51] ? preempt_schedule_notrace_thunk+0x16/0x30 [ 102.546548][ T51] ? __pfx_inet_shutdown+0x10/0x10 [ 102.546569][ T51] lock_acquire+0xf0/0x2e0 [ 102.546589][ T51] ? inet_shutdown+0x6a/0x390 [ 102.546612][ T51] lock_sock_nested+0x48/0x100 [ 102.546641][ T51] ? inet_shutdown+0x6a/0x390 [ 102.546661][ T51] inet_shutdown+0x6a/0x390 [ 102.546681][ T51] nbd_mark_nsock_dead+0x2e9/0x560 [ 102.546702][ T51] recv_work+0x1c7f/0x1d90 [ 102.546721][ T51] ? __pfx_stack_trace_save+0x10/0x10 [ 102.546739][ T51] ? check_path+0x21/0x40 [ 102.546764][ T51] ? add_lock_to_list+0xc7/0x100 [ 102.546792][ T51] ? __pfx_recv_work+0x10/0x10 [ 102.546820][ T51] ? process_scheduled_works+0xa8d/0x18c0 [ 102.546841][ T51] ? process_scheduled_works+0xa8d/0x18c0 [ 102.546863][ T51] process_scheduled_works+0xb6e/0x18c0 [ 102.546896][ T51] ? __pfx_process_scheduled_works+0x10/0x10 [ 102.546919][ T51] ? assign_work+0x3d5/0x5e0 [ 102.546941][ T51] worker_thread+0xa53/0xfc0 [ 102.546973][ T51] kthread+0x388/0x470 [ 102.546989][ T51] ? __pfx_worker_thread+0x10/0x10 [ 102.547010][ T51] ? __pfx_kthread+0x10/0x10 [ 102.547025][ T51] ret_from_fork+0x51e/0xb90 [ 102.547048][ T51] ? __pfx_ret_from_fork+0x10/0x10 [ 102.547068][ T51] ? __switch_to+0xc7d/0x1450 [ 102.547088][ T51] ? __pfx_kthread+0x10/0x10 [ 102.547103][ T51] ret_from_fork_asm+0x1a/0x30 [ 102.547135][ T51] 2026/03/23 05:19:34 executed programs: 4 [ 102.941733][ T6043] nbd2: detected capacity change from 0 to 63 [ 102.951596][ T5895] block nbd0: Receive control failed (result -107) [ 102.958333][ T6043] block nbd0: reconnected socket [ 102.979113][ T6029] block nbd2: Receive control failed (result -104) [ 102.986168][ T51] block nbd2: Receive control failed (result -32) [ 103.210790][ T6056] nbd3: detected capacity change from 0 to 63 [ 103.218689][ T6056] block nbd0: reconnected socket [ 103.218717][ T5895] block nbd0: Receive control failed (result -107) [ 103.230491][ T6029] block nbd3: Receive control failed (result -104) [ 103.237313][ T51] block nbd3: Receive control failed (result -32) [ 103.350646][ T5895] Bluetooth: hci0: command tx timeout [ 103.471173][ T6058] nbd4: detected capacity change from 0 to 63 [ 103.478906][ T6058] block nbd0: reconnected socket [ 103.478935][ T51] block nbd0: Receive control failed (result -107) [ 103.486385][ T6029] block nbd4: Receive control failed (result -104) [ 103.490616][ T5895] block nbd4: Receive control failed (result -32) [ 103.740693][ T6060] nbd5: detected capacity change from 0 to 63 [ 103.748435][ T6060] block nbd0: reconnected socket [ 103.748488][ T6029] block nbd0: Receive control failed (result -107) [ 103.760562][ T51] block nbd5: Receive control failed (result -104) [ 103.767184][ T5895] block nbd5: Receive control failed (result -32) [ 103.960966][ T6062] nbd6: detected capacity change from 0 to 63 [ 103.968855][ T6062] block nbd0: reconnected socket [ 103.968881][ T6029] block nbd0: Receive control failed (result -107) [ 103.975344][ T51] block nbd6: Receive control failed (result -104) [ 103.980612][ T5895] block nbd6: Receive control failed (result -32) [ 104.220616][ T6064] nbd7: detected capacity change from 0 to 63 [ 104.228347][ T6064] block nbd0: reconnected socket [ 104.228375][ T51] block nbd0: Receive control failed (result -107) [ 104.239939][ T6029] block nbd7: Receive control failed (result -104) [ 104.246566][ T5895] block nbd7: Receive control failed (result -32) [ 104.460642][ T6066] nbd8: detected capacity change from 0 to 63 [ 104.468297][ T6066] block nbd0: reconnected socket [ 104.468323][ T6029] block nbd0: Receive control failed (result -107) [ 104.480223][ T51] block nbd8: Receive control failed (result -104) [ 104.486796][ T5895] block nbd8: Receive control failed (result -32) [ 104.720656][ T6068] nbd9: detected capacity change from 0 to 63 [ 104.728507][ T6068] block nbd0: reconnected socket [ 104.728537][ T51] block nbd0: Receive control failed (result -107) [ 104.735010][ T6029] block nbd9: Receive control failed (result -104) [ 104.741274][ T5895] block nbd9: Receive control failed (result -32) [ 104.972056][ T6070] block nbd0: reconnected socket [ 104.972086][ T6029] block nbd0: Receive control failed (result -107) [ 104.980837][ T51] block nbd10: Receive control failed (result -32) [ 104.983784][ T5895] block nbd10: Receive control failed (result -32) [ 105.001637][ T6071] block nbd10: Dead connection, failed to find a fallback [ 105.008919][ T6071] block nbd10: shutting down sockets [ 105.014717][ T6071] I/O error, dev nbd10, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 [ 105.024617][ T6071] Buffer I/O error on dev nbd10, logical block 0, async page read [ 105.032818][ T6071] I/O error, dev nbd10, sector 2 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 [ 105.043045][ T6071] Buffer I/O error on dev nbd10, logical block 1, async page read [ 105.051052][ T6071] I/O error, dev nbd10, sector 4 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 [ 105.060695][ T6071] Buffer I/O error on dev nbd10, logical block 2, async page read [ 105.068594][ T6071] I/O error, dev nbd10, sector 6 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 [ 105.078214][ T6071] Buffer I/O error on dev nbd10, logical block 3, async page read [ 105.086158][ T6071] I/O error, dev nbd10, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 [ 105.095845][ T6071] Buffer I/O error on dev nbd10, logical block 0, async page read [ 105.103791][ T6071] I/O error, dev nbd10, sector 2 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 [ 105.113382][ T6071] Buffer I/O error on dev nbd10, logical block 1, async page read [ 105.121298][ T6071] I/O error, dev nbd10, sector 4 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 [ 105.130918][ T6071] Buffer I/O error on dev nbd10, logical block 2, async page read [ 105.138760][ T6071] I/O error, dev nbd10, sector 6 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 [ 105.148910][ T6071] Buffer I/O error on dev nbd10, logical block 3, async page read [ 105.156934][ T6071] I/O error, dev nbd10, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 [ 105.166557][ T6071] Buffer I/O error on dev nbd10, logical block 0, async page read [ 105.174490][ T6071] I/O error, dev nbd10, sector 2 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 [ 105.184097][ T6071] Buffer I/O error on dev nbd10, logical block 1, async page read [ 105.192778][ T6071] ldm_validate_partition_table(): Disk read failed. [ 105.199782][ T6071] Dev nbd10: unable to read RDB block 0 [ 105.205907][ T6071] nbd10: unable to read partition table [ 105.221701][ T6071] ldm_validate_partition_table(): Disk read failed. [ 105.229141][ T6071] Dev nbd10: unable to read RDB block 0 [ 105.235523][ T6071] nbd10: unable to read partition table [ 105.382661][ T6072] block nbd0: reconnected socket [ 105.382688][ T51] block nbd0: Receive control failed (result -107) [ 105.394257][ T6029] block nbd11: Receive control failed (result -104) [ 105.401022][ T5895] block nbd11: Receive control failed (result -32) [ 105.430800][ T5895] Bluetooth: hci0: command tx timeout [ 105.622181][ T51] block nbd0: Receive control failed (result -107) [ 105.629008][ T6073] block nbd0: reconnected socket [ 105.634565][ T6029] block nbd12: Receive control failed (result -32) [ 105.641212][ T5895] block nbd12: Receive control failed (result -32) [ 105.651141][ T6074] block nbd12: Dead connection, failed to find a fallback [ 105.659000][ T6074] block nbd12: shutting down sockets [ 105.665485][ T6074] ldm_validate_partition_table(): Disk read failed. [ 105.672796][ T6074] Dev nbd12: unable to read RDB block 0 [ 105.678727][ T6074] nbd12: unable to read partition table [ 105.691462][ T6074] ldm_validate_partition_table(): Disk read failed. [ 105.698419][ T6074] Dev nbd12: unable to read RDB block 0 [ 105.705279][ T6074] nbd12: unable to read partition table [ 105.922261][ T6075] block nbd0: reconnected socket [ 105.922297][ T51] block nbd0: Receive control failed (result -107) [ 105.928995][ T5895] block nbd13: Receive control failed (result -104) [ 105.933860][ T6029] block nbd13: Receive control failed (result -32) [ 106.151920][ T6076] block nbd0: reconnected socket [ 106.151949][ T5895] block nbd0: Receive control failed (result -107) [ 106.158173][ T6029] block nbd14: Receive control failed (result -32) [ 106.163512][ T51] block nbd14: Receive control failed (result -32) [ 106.370597][ T6077] set_capacity_and_notify: 5 callbacks suppressed [ 106.370615][ T6077] nbd15: detected capacity change from 0 to 63 [ 106.384572][ T6077] block nbd0: reconnected socket [ 106.384619][ T6029] block nbd0: Receive control failed (result -107) [ 106.392569][ T51] block nbd15: Receive control failed (result -32) [ 106.397533][ T5895] block nbd15: Receive control failed (result -32) [ 106.640661][ T6078] nbd16: detected capacity change from 0 to 63 [ 106.648327][ T6078] block nbd0: reconnected socket [ 106.648355][ T51] block nbd0: Receive control failed (result -107) [ 106.659916][ T5895] block nbd16: Receive control failed (result -32) [ 106.666525][ T6029] block nbd16: Receive control failed (result -32) [ 106.880660][ T6080] nbd17: detected capacity change from 0 to 63 [ 106.888166][ T6080] block nbd0: reconnected socket [ 106.888198][ T51] block nbd0: Receive control failed (result -107) [ 106.899784][ T5895] block nbd17: Receive control failed (result -32) [ 106.906373][ T6029] block nbd17: Receive control failed (result -32) [ 107.120667][ T6082] nbd18: detected capacity change from 0 to 63 [ 107.128208][ T6082] block nbd0: reconnected socket [ 107.128272][ T51] block nbd0: Receive control failed (result -107) [ 107.139854][ T6029] block nbd18: Receive control failed (result -32) [ 107.146548][ T5895] block nbd18: Receive control failed (result -32) [ 107.380767][ T6084] nbd19: detected capacity change from 0 to 63 [ 107.388220][ T6084] block nbd0: reconnected socket [ 107.388248][ T51] block nbd0: Receive control failed (result -107) [ 107.400925][ T5895] block nbd19: Receive control failed (result -32) [ 107.407507][ T6029] block nbd19: Receive control failed (result -32) [ 107.640732][ T6086] nbd20: detected capacity change from 0 to 63 [ 107.648330][ T6086] block nbd0: reconnected socket [ 107.648358][ T51] block nbd0: Receive control failed (result -107) [ 107.659937][ T5895] block nbd20: Receive control failed (result -32) [ 107.666570][ T6029] block nbd20: Receive control failed (result -32) [ 107.900664][ T6088] nbd21: detected capacity change from 0 to 63 [ 107.908367][ T6088] block nbd0: reconnected socket [ 107.908398][ T51] block nbd0: Receive control failed (result -107) [ 107.920993][ T6029] block nbd21: Receive control failed (result -32) [ 107.927633][ T5895] block nbd21: Receive control failed (result -32) 2026/03/23 05:19:39 executed programs: 24 [ 108.160645][ T6090] nbd22: detected capacity change from 0 to 63 [ 108.168213][ T6090] block nbd0: reconnected socket [ 108.168244][ T51] block nbd0: Receive control failed (result -107) [ 108.175454][ T6029] block nbd22: Receive control failed (result -32) [ 108.179906][ T5895] block nbd22: Receive control failed (result -32) [ 108.400641][ T6092] nbd23: detected capacity change from 0 to 63 [ 108.408388][ T6092] block nbd0: reconnected socket [ 108.408419][ T6029] block nbd0: Receive control failed (result -107) [ 108.420182][ T51] block nbd23: Receive control failed (result -32) [ 108.426868][ T5895] block nbd23: Receive control failed (result -32) [ 108.670672][ T6094] nbd24: detected capacity change from 0 to 63 [ 108.678220][ T6094] block nbd0: reconnected socket [ 108.678251][ T6029] block nbd0: Receive control failed (result -107) [ 108.685247][ T51] block nbd24: Receive control failed (result -32) [ 108.689792][ T5895] block nbd24: Receive control failed (result -32) [ 108.931974][ T6096] block nbd0: reconnected socket [ 108.932004][ T51] block nbd0: Receive control failed (result -107) [ 108.943576][ T6029] block nbd25: Receive control failed (result -32) [ 108.950168][ T5895] block nbd25: Receive control failed (result -32) [ 109.172241][ T6098] block nbd0: reconnected socket [ 109.172268][ T6029] block nbd0: Receive control failed (result -107) [ 109.178465][ T51] block nbd26: Receive control failed (result -32) [ 109.183816][ T5895] block nbd26: Receive control failed (result -32) [ 109.452019][ T6100] block nbd0: reconnected socket [ 109.452048][ T51] block nbd0: Receive control failed (result -107) [ 109.458232][ T5895] block nbd27: Receive control failed (result -32) [ 109.463597][ T6029] block nbd27: Receive control failed (result -32) [ 109.702000][ T6102] block nbd0: reconnected socket [ 109.702035][ T5895] block nbd0: Receive control failed (result -107) [ 109.708530][ T51] block nbd28: Receive control failed (result -32) [ 109.713588][ T6029] block nbd28: Receive control failed (result -32) [ 109.972033][ T6104] block nbd0: reconnected socket [ 109.972063][ T51] block nbd0: Receive control failed (result -107) [ 109.983651][ T5895] block nbd29: Receive control failed (result -32) [ 109.990235][ T6029] block nbd29: Receive control failed (result -32) [ 110.212234][ T6106] block nbd0: reconnected socket [ 110.212259][ T5895] block nbd0: Receive control failed (result -107) [ 110.218412][ T51] block nbd30: Receive control failed (result -32) [ 110.230329][ T6029] block nbd30: Receive control failed (result -32) [ 110.472028][ T6108] block nbd0: reconnected socket [ 110.472056][ T5895] block nbd0: Receive control failed (result -107) [ 110.478440][ T51] block nbd31: Receive control failed (result -32) [ 110.483611][ T6029] block nbd31: Receive control failed (result -32) [ 110.742101][ T6110] block nbd0: reconnected socket [ 110.742130][ T51] block nbd0: Receive control failed (result -107) [ 110.748497][ T6029] block nbd32: Receive control failed (result -32) [ 110.753746][ T5895] block nbd32: Receive control failed (result -32) [ 111.012089][ T6112] block nbd0: reconnected socket [ 111.012119][ T6029] block nbd0: Receive control failed (result -107) [ 111.018410][ T5895] block nbd33: Receive control failed (result -32) [ 111.023686][ T51] block nbd33: Receive control failed (result -32) [ 111.252281][ T6114] block nbd0: reconnected socket [ 111.252311][ T5895] block nbd0: Receive control failed (result -107) [ 111.258400][ T6029] block nbd34: Receive control failed (result -32) [ 111.263873][ T51] block nbd34: Receive control failed (result -32) [ 111.550640][ T6116] set_capacity_and_notify: 10 callbacks suppressed [ 111.550658][ T6116] nbd35: detected capacity change from 0 to 63 [ 111.565146][ T6116] block nbd0: reconnected socket [ 111.565175][ T6029] block nbd0: Receive control failed (result -107) [ 111.576782][ T5895] block nbd35: Receive control failed (result -32) [ 111.583383][ T51] block nbd35: Receive control failed (result -32)