Warning: Permanently added '10.128.1.32' (ED25519) to the list of known hosts. 2026/03/25 10:38:00 parsed 1 programs [ 71.048332][ T5842] cgroup: Unknown subsys name 'net' [ 71.117930][ T5842] cgroup: Unknown subsys name 'cpuset' [ 71.127102][ T5842] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 72.409190][ T5842] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 75.158912][ T5857] 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. [ 76.041249][ T5873] chnl_net:caif_netlink_parms(): no params data found [ 76.106390][ T5873] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.114250][ T5873] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.121379][ T5873] bridge_slave_0: entered allmulticast mode [ 76.128327][ T5873] bridge_slave_0: entered promiscuous mode [ 76.140645][ T5873] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.147884][ T5873] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.155193][ T5873] bridge_slave_1: entered allmulticast mode [ 76.162053][ T5873] bridge_slave_1: entered promiscuous mode [ 76.187502][ T5873] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.198777][ T5873] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.222947][ T5873] team0: Port device team_slave_0 added [ 76.230094][ T5873] team0: Port device team_slave_1 added [ 76.250593][ T5873] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.257547][ T5873] 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. [ 76.283426][ T5873] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.296420][ T5873] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.303360][ T5873] 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. [ 76.329274][ T5873] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.387253][ T5873] hsr_slave_0: entered promiscuous mode [ 76.394749][ T5873] hsr_slave_1: entered promiscuous mode [ 76.596159][ T5873] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 76.607336][ T5873] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.616633][ T5873] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.626642][ T5873] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.655909][ T5873] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.663270][ T5873] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.671042][ T5873] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.678144][ T5873] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.727947][ T5873] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.746534][ T1171] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.755376][ T1171] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.770191][ T5873] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.781838][ T1016] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.788943][ T1016] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.802397][ T1016] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.809544][ T1016] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.955346][ T5873] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.994048][ T5873] veth0_vlan: entered promiscuous mode [ 77.004945][ T5873] veth1_vlan: entered promiscuous mode [ 77.028889][ T5873] veth0_macvtap: entered promiscuous mode [ 77.039447][ T5873] veth1_macvtap: entered promiscuous mode [ 77.055946][ T5873] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.069504][ T5873] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 77.084872][ T1171] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.094101][ T1171] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.108676][ T1171] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.118892][ T1171] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.243388][ T57] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.321883][ T57] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.386212][ T57] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.498331][ T57] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.555982][ T5938] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 78.571495][ T5938] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 78.579567][ T5938] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 78.590161][ T5938] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 78.599478][ T5938] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 78.891036][ T1180] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.902496][ T1180] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.929027][ T1171] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.937567][ T1171] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2026/03/25 10:38:11 executed programs: 0 [ 79.338371][ T5938] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 79.346962][ T5938] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 79.357466][ T5938] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 79.366348][ T5938] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 79.374720][ T5938] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 79.493862][ T5954] chnl_net:caif_netlink_parms(): no params data found [ 79.555193][ T5954] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.562323][ T5954] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.569703][ T5954] bridge_slave_0: entered allmulticast mode [ 79.576693][ T5954] bridge_slave_0: entered promiscuous mode [ 79.584092][ T5954] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.591319][ T5954] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.598609][ T5954] bridge_slave_1: entered allmulticast mode [ 79.605614][ T5954] bridge_slave_1: entered promiscuous mode [ 79.629702][ T5954] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 79.640624][ T5954] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 79.666532][ T5954] team0: Port device team_slave_0 added [ 79.674032][ T5954] team0: Port device team_slave_1 added [ 79.695608][ T5954] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 79.702543][ T5954] 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. [ 79.729497][ T5954] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 79.742148][ T5954] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 79.749364][ T5954] 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. [ 79.775593][ T5954] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 79.843250][ T5954] hsr_slave_0: entered promiscuous mode [ 79.850282][ T5954] hsr_slave_1: entered promiscuous mode [ 79.856569][ T5954] debugfs: 'hsr0' already exists in 'hsr' [ 79.862441][ T5954] Cannot create hsr debugfs directory [ 79.924745][ T57] bridge_slave_1: left allmulticast mode [ 79.931021][ T57] bridge_slave_1: left promiscuous mode [ 79.937611][ T57] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.948313][ T57] bridge_slave_0: left allmulticast mode [ 79.953944][ T57] bridge_slave_0: left promiscuous mode [ 79.961024][ T57] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.094609][ T57] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 80.106167][ T57] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 80.115743][ T57] bond0 (unregistering): Released all slaves [ 80.226641][ T57] hsr_slave_0: left promiscuous mode [ 80.232438][ T57] hsr_slave_1: left promiscuous mode [ 80.239769][ T57] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 80.248228][ T57] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 80.256824][ T57] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 80.264285][ T57] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 80.276658][ T57] veth1_macvtap: left promiscuous mode [ 80.282181][ T57] veth0_macvtap: left promiscuous mode [ 80.288101][ T57] veth1_vlan: left promiscuous mode [ 80.293332][ T57] veth0_vlan: left promiscuous mode [ 80.454056][ T57] team0 (unregistering): Port device team_slave_1 removed [ 80.468150][ T57] team0 (unregistering): Port device team_slave_0 removed [ 80.916324][ T5954] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 80.930603][ T5954] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 80.941804][ T5954] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 80.957405][ T5954] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 81.396533][ T5954] 8021q: adding VLAN 0 to HW filter on device bond0 [ 81.437686][ T5938] Bluetooth: hci0: command tx timeout [ 81.454679][ T808] cfg80211: failed to load regulatory.db [ 81.461299][ T5954] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.503519][ T1016] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.510695][ T1016] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.551228][ T1016] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.558398][ T1016] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.962555][ T5954] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 82.085016][ T5954] veth0_vlan: entered promiscuous mode [ 82.096912][ T5954] veth1_vlan: entered promiscuous mode [ 82.137408][ T5954] veth0_macvtap: entered promiscuous mode [ 82.151017][ T5954] veth1_macvtap: entered promiscuous mode [ 82.176611][ T5954] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 82.194187][ T5954] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 82.208083][ T1171] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.218070][ T1171] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.228763][ T1171] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.237572][ T1171] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.300903][ T1171] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 82.309132][ T1171] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 82.339783][ T1016] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 82.348086][ T1016] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 82.575171][ T6001] nbd0: detected capacity change from 0 to 63 [ 82.588203][ T5162] block nbd0: Receive control failed (result -32) [ 82.588203][ T5938] block nbd0: Receive control failed (result -32) [ 82.592091][ T5858] block nbd0: Send control failed (result -32) [ 82.612146][ T5858] block nbd0: Request send failed, requeueing [ 82.627962][ T2429] block nbd0: Dead connection, failed to find a fallback [ 82.638710][ T2429] block nbd0: shutting down sockets [ 82.644613][ T2429] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 82.654019][ T2429] Buffer I/O error on dev nbd0, logical block 0, async page read [ 82.665626][ T5858] I/O error, dev nbd0, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 82.676971][ T5858] Buffer I/O error on dev nbd0, logical block 1, async page read [ 82.685764][ T5858] I/O error, dev nbd0, sector 4 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 82.694955][ T5858] Buffer I/O error on dev nbd0, logical block 2, async page read [ 82.703208][ T5858] I/O error, dev nbd0, sector 6 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 82.712371][ T5858] Buffer I/O error on dev nbd0, logical block 3, async page read [ 82.720379][ T5858] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 82.729583][ T5858] Buffer I/O error on dev nbd0, logical block 0, async page read [ 82.737623][ T5858] I/O error, dev nbd0, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 82.746956][ T5858] Buffer I/O error on dev nbd0, logical block 1, async page read [ 82.755334][ T5858] I/O error, dev nbd0, sector 4 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 82.764472][ T5858] Buffer I/O error on dev nbd0, logical block 2, async page read [ 82.772337][ T5858] I/O error, dev nbd0, sector 6 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 82.781628][ T5858] Buffer I/O error on dev nbd0, logical block 3, async page read [ 82.789815][ T5858] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 82.799243][ T5858] Buffer I/O error on dev nbd0, logical block 0, async page read [ 82.807187][ T5858] I/O error, dev nbd0, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 82.816773][ T5858] Buffer I/O error on dev nbd0, logical block 1, async page read [ 82.828210][ T5858] ldm_validate_partition_table(): Disk read failed. [ 82.837082][ T5858] Dev nbd0: unable to read RDB block 0 [ 82.843654][ T5858] nbd0: unable to read partition table [ 82.853100][ T5858] ldm_validate_partition_table(): Disk read failed. [ 82.860870][ T5858] Dev nbd0: unable to read RDB block 0 [ 82.867637][ T5858] nbd0: unable to read partition table [ 82.880026][ T6002] nbd1: detected capacity change from 0 to 63 [ 82.891018][ T6002] block nbd0: reconnected socket [ 82.891343][ T50] block nbd0: Receive control failed (result -107) [ 82.897834][ T5938] block nbd1: Receive control failed (result -104) [ 82.903205][ T5162] block nbd1: Receive control failed (result -32) [ 82.917886][ T50] [ 82.920219][ T50] ====================================================== [ 82.927215][ T50] WARNING: possible circular locking dependency detected [ 82.934224][ T50] syzkaller #0 Not tainted [ 82.938633][ T50] ------------------------------------------------------ [ 82.945631][ T50] kworker/u9:0/50 is trying to acquire lock: [ 82.951611][ T50] ffff8880312e3860 (sk_lock-AF_INET6){+.+.}-{0:0}, at: inet_shutdown+0x6a/0x390 [ 82.960677][ T50] [ 82.960677][ T50] but task is already holding lock: [ 82.968023][ T50] ffff88807cadec68 (&nsock->tx_lock){+.+.}-{4:4}, at: recv_work+0x1c19/0x1d40 [ 82.976873][ T50] [ 82.976873][ T50] which lock already depends on the new lock. [ 82.976873][ T50] [ 82.987256][ T50] [ 82.987256][ T50] the existing dependency chain (in reverse order) is: [ 82.996247][ T50] [ 82.996247][ T50] -> #6 (&nsock->tx_lock){+.+.}-{4:4}: [ 83.003871][ T50] __mutex_lock+0x19e/0x1420 [ 83.008971][ T50] nbd_queue_rq+0x37b/0x1100 [ 83.014056][ T50] blk_mq_dispatch_rq_list+0xa70/0x1910 [ 83.020107][ T50] __blk_mq_sched_dispatch_requests+0xdcc/0x1600 [ 83.026937][ T50] blk_mq_sched_dispatch_requests+0xd7/0x190 [ 83.033421][ T50] blk_mq_run_hw_queue+0x348/0x4f0 [ 83.039058][ T50] blk_mq_dispatch_list+0xd16/0xe10 [ 83.044761][ T50] blk_mq_flush_plug_list+0x48d/0x570 [ 83.050635][ T50] __blk_flush_plug+0x3ed/0x4d0 [ 83.055990][ T50] __submit_bio+0x28d/0x580 [ 83.060997][ T50] submit_bio_noacct_nocheck+0x2f4/0xa40 [ 83.067131][ T50] block_read_full_folio+0x599/0x830 [ 83.072917][ T50] filemap_read_folio+0x137/0x3b0 [ 83.078443][ T50] do_read_cache_folio+0x358/0x590 [ 83.084061][ T50] read_part_sector+0xb6/0x2b0 [ 83.089330][ T50] adfspart_check_ICS+0xb1/0x960 [ 83.094771][ T50] bdev_disk_changed+0x817/0x1770 [ 83.100302][ T50] blkdev_get_whole+0x380/0x510 [ 83.105658][ T50] bdev_open+0x31e/0xd30 [ 83.110403][ T50] blkdev_open+0x470/0x610 [ 83.115315][ T50] do_dentry_open+0x785/0x14e0 [ 83.120582][ T50] vfs_open+0x3b/0x340 [ 83.125161][ T50] path_openat+0x2e08/0x3860 [ 83.130253][ T50] do_file_open+0x23e/0x4a0 [ 83.135252][ T50] do_sys_openat2+0x113/0x200 [ 83.140429][ T50] __x64_sys_openat+0x138/0x170 [ 83.145781][ T50] do_syscall_64+0x14d/0xf80 [ 83.150875][ T50] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 83.157268][ T50] [ 83.157268][ T50] -> #5 (&cmd->lock){+.+.}-{4:4}: [ 83.164459][ T50] __mutex_lock+0x19e/0x1420 [ 83.169561][ T50] nbd_queue_rq+0xc6/0x1100 [ 83.174564][ T50] blk_mq_dispatch_rq_list+0xa70/0x1910 [ 83.180615][ T50] __blk_mq_sched_dispatch_requests+0xdcc/0x1600 [ 83.187444][ T50] blk_mq_sched_dispatch_requests+0xd7/0x190 [ 83.193930][ T50] blk_mq_run_hw_queue+0x348/0x4f0 [ 83.199545][ T50] blk_mq_dispatch_list+0xd16/0xe10 [ 83.205247][ T50] blk_mq_flush_plug_list+0x48d/0x570 [ 83.211124][ T50] __blk_flush_plug+0x3ed/0x4d0 [ 83.216478][ T50] __submit_bio+0x28d/0x580 [ 83.221484][ T50] submit_bio_noacct_nocheck+0x2f4/0xa40 [ 83.227616][ T50] block_read_full_folio+0x599/0x830 [ 83.233409][ T50] filemap_read_folio+0x137/0x3b0 [ 83.238939][ T50] do_read_cache_folio+0x358/0x590 [ 83.244554][ T50] read_part_sector+0xb6/0x2b0 [ 83.249826][ T50] adfspart_check_ICS+0xb1/0x960 [ 83.255268][ T50] bdev_disk_changed+0x817/0x1770 [ 83.260796][ T50] blkdev_get_whole+0x380/0x510 [ 83.266418][ T50] bdev_open+0x31e/0xd30 [ 83.271166][ T50] blkdev_open+0x470/0x610 [ 83.276079][ T50] do_dentry_open+0x785/0x14e0 [ 83.281346][ T50] vfs_open+0x3b/0x340 [ 83.285913][ T50] path_openat+0x2e08/0x3860 [ 83.291001][ T50] do_file_open+0x23e/0x4a0 [ 83.296000][ T50] do_sys_openat2+0x113/0x200 [ 83.301181][ T50] __x64_sys_openat+0x138/0x170 [ 83.306539][ T50] do_syscall_64+0x14d/0xf80 [ 83.311639][ T50] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 83.318031][ T50] [ 83.318031][ T50] -> #4 (set->srcu){.+.+}-{0:0}: [ 83.325144][ T50] __synchronize_srcu+0xca/0x3e0 [ 83.330588][ T50] elevator_switch+0x1e8/0x7a0 [ 83.335853][ T50] elevator_change+0x2cc/0x450 [ 83.341123][ T50] elevator_set_default+0x36c/0x430 [ 83.346823][ T50] blk_register_queue+0x3e9/0x4e0 [ 83.352346][ T50] __add_disk+0x677/0xd50 [ 83.357175][ T50] add_disk_fwnode+0xfb/0x480 [ 83.362350][ T50] nbd_dev_add+0x72c/0xb50 [ 83.367270][ T50] nbd_init+0x168/0x1f0 [ 83.371928][ T50] do_one_initcall+0x250/0x870 [ 83.377197][ T50] do_initcall_level+0x104/0x190 [ 83.382634][ T50] do_initcalls+0x59/0xa0 [ 83.388904][ T50] kernel_init_freeable+0x2a6/0x3e0 [ 83.395053][ T50] kernel_init+0x1d/0x1d0 [ 83.399902][ T50] ret_from_fork+0x51e/0xb90 [ 83.405007][ T50] ret_from_fork_asm+0x1a/0x30 [ 83.410276][ T50] [ 83.410276][ T50] -> #3 (&q->elevator_lock){+.+.}-{4:4}: [ 83.418076][ T50] __mutex_lock+0x19e/0x1420 [ 83.423180][ T50] elevator_change+0x1b3/0x450 [ 83.428751][ T50] elevator_set_none+0xb5/0x140 [ 83.434121][ T50] blk_mq_update_nr_hw_queues+0x5e7/0x1a60 [ 83.440432][ T50] nbd_start_device+0x17f/0xb10 [ 83.445788][ T50] nbd_genl_connect+0x165b/0x1cf0 [ 83.451318][ T50] genl_family_rcv_msg_doit+0x22a/0x330 [ 83.457367][ T50] genl_rcv_msg+0x61c/0x7a0 [ 83.462371][ T50] netlink_rcv_skb+0x232/0x4b0 [ 83.467637][ T50] genl_rcv+0x28/0x40 [ 83.472118][ T50] netlink_unicast+0x80f/0x9b0 [ 83.477382][ T50] netlink_sendmsg+0x813/0xb40 [ 83.482649][ T50] ____sys_sendmsg+0x972/0x9f0 [ 83.487916][ T50] ___sys_sendmsg+0x2a5/0x360 [ 83.493097][ T50] __x64_sys_sendmsg+0x1bd/0x2a0 [ 83.498538][ T50] do_syscall_64+0x14d/0xf80 [ 83.503637][ T50] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 83.510049][ T50] [ 83.510049][ T50] -> #2 (&q->q_usage_counter(io)#49){++++}-{0:0}: [ 83.518639][ T50] blk_alloc_queue+0x546/0x680 [ 83.523907][ T50] __blk_mq_alloc_disk+0x197/0x390 [ 83.529519][ T50] nbd_dev_add+0x499/0xb50 [ 83.534439][ T50] nbd_init+0x168/0x1f0 [ 83.539101][ T50] do_one_initcall+0x250/0x870 [ 83.544367][ T50] do_initcall_level+0x104/0x190 [ 83.549805][ T50] do_initcalls+0x59/0xa0 [ 83.554738][ T50] kernel_init_freeable+0x2a6/0x3e0 [ 83.560457][ T50] kernel_init+0x1d/0x1d0 [ 83.565300][ T50] ret_from_fork+0x51e/0xb90 [ 83.570394][ T50] ret_from_fork_asm+0x1a/0x30 [ 83.575654][ T50] [ 83.575654][ T50] -> #1 (fs_reclaim){+.+.}-{0:0}: [ 83.582845][ T50] fs_reclaim_acquire+0x71/0x100 [ 83.588285][ T50] kmem_cache_alloc_node_noprof+0x4a/0x690 [ 83.594604][ T50] __alloc_skb+0x1d0/0x7d0 [ 83.599569][ T50] __ip6_append_data+0x2a44/0x3c50 [ 83.605183][ T50] ip6_append_data+0x10f/0x280 [ 83.610454][ T50] rawv6_sendmsg+0x12d3/0x18e0 [ 83.615726][ T50] ____sys_sendmsg+0x80a/0x9f0 [ 83.621001][ T50] ___sys_sendmsg+0x2a5/0x360 [ 83.626184][ T50] __x64_sys_sendmsg+0x1bd/0x2a0 [ 83.631625][ T50] do_syscall_64+0x14d/0xf80 [ 83.636717][ T50] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 83.643109][ T50] [ 83.643109][ T50] -> #0 (sk_lock-AF_INET6){+.+.}-{0:0}: [ 83.650817][ T50] __lock_acquire+0x15a5/0x2cf0 [ 83.656173][ T50] lock_acquire+0x106/0x350 [ 83.661177][ T50] lock_sock_nested+0x41/0x100 [ 83.666443][ T50] inet_shutdown+0x6a/0x390 [ 83.671450][ T50] nbd_mark_nsock_dead+0x2e9/0x560 [ 83.677058][ T50] recv_work+0x1c2e/0x1d40 [ 83.681974][ T50] process_scheduled_works+0xb5d/0x1860 [ 83.688021][ T50] worker_thread+0xa53/0xfc0 [ 83.693116][ T50] kthread+0x388/0x470 [ 83.697684][ T50] ret_from_fork+0x51e/0xb90 [ 83.702774][ T50] ret_from_fork_asm+0x1a/0x30 [ 83.708037][ T50] [ 83.708037][ T50] other info that might help us debug this: [ 83.708037][ T50] [ 83.718246][ T50] Chain exists of: [ 83.718246][ T50] sk_lock-AF_INET6 --> &cmd->lock --> &nsock->tx_lock [ 83.718246][ T50] [ 83.730915][ T50] Possible unsafe locking scenario: [ 83.730915][ T50] [ 83.738342][ T50] CPU0 CPU1 [ 83.743685][ T50] ---- ---- [ 83.749026][ T50] lock(&nsock->tx_lock); [ 83.753423][ T50] lock(&cmd->lock); [ 83.759906][ T50] lock(&nsock->tx_lock); [ 83.766907][ T50] lock(sk_lock-AF_INET6); [ 83.771388][ T50] [ 83.771388][ T50] *** DEADLOCK *** [ 83.771388][ T50] [ 83.779508][ T50] 3 locks held by kworker/u9:0/50: [ 83.784597][ T50] #0: ffff8880278c8140 ((wq_completion)nbd0-recv){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860 [ 83.796326][ T50] #1: ffffc90000ba7c40 ((work_completion)(&args->work)#3){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860 [ 83.808354][ T50] #2: ffff88807cadec68 (&nsock->tx_lock){+.+.}-{4:4}, at: recv_work+0x1c19/0x1d40 [ 83.817661][ T50] [ 83.817661][ T50] stack backtrace: [ 83.823552][ T50] CPU: 0 UID: 0 PID: 50 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) [ 83.823566][ T50] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 83.823575][ T50] Workqueue: nbd0-recv recv_work [ 83.823604][ T50] Call Trace: [ 83.823609][ T50] [ 83.823614][ T50] dump_stack_lvl+0xe8/0x150 [ 83.823632][ T50] print_circular_bug+0x2e1/0x300 [ 83.823646][ T50] check_noncircular+0x12e/0x150 [ 83.823660][ T50] __lock_acquire+0x15a5/0x2cf0 [ 83.823678][ T50] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 83.823693][ T50] ? try_to_wake_up+0x7f2/0x1380 [ 83.823709][ T50] ? inet_shutdown+0x6a/0x390 [ 83.823725][ T50] lock_acquire+0x106/0x350 [ 83.823739][ T50] ? inet_shutdown+0x6a/0x390 [ 83.823755][ T50] ? __queue_work+0xc42/0xfc0 [ 83.823767][ T50] lock_sock_nested+0x41/0x100 [ 83.823780][ T50] ? inet_shutdown+0x6a/0x390 [ 83.823796][ T50] inet_shutdown+0x6a/0x390 [ 83.823812][ T50] nbd_mark_nsock_dead+0x2e9/0x560 [ 83.823825][ T50] recv_work+0x1c2e/0x1d40 [ 83.823840][ T50] ? lockdep_unlock+0x5d/0xd0 [ 83.823857][ T50] ? __pfx_recv_work+0x10/0x10 [ 83.823869][ T50] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 83.823882][ T50] ? process_scheduled_works+0xa70/0x1860 [ 83.823901][ T50] ? process_scheduled_works+0xa70/0x1860 [ 83.823915][ T50] ? process_scheduled_works+0xa70/0x1860 [ 83.823930][ T50] process_scheduled_works+0xb5d/0x1860 [ 83.823945][ T50] ? __lock_acquire+0x6b5/0x2cf0 [ 83.823968][ T50] ? __pfx_process_scheduled_works+0x10/0x10 [ 83.823984][ T50] ? assign_work+0x3d5/0x5e0 [ 83.824001][ T50] worker_thread+0xa53/0xfc0 [ 83.824023][ T50] kthread+0x388/0x470 [ 83.824035][ T50] ? __pfx_worker_thread+0x10/0x10 [ 83.824050][ T50] ? __pfx_kthread+0x10/0x10 [ 83.824062][ T50] ret_from_fork+0x51e/0xb90 [ 83.824078][ T50] ? __pfx_ret_from_fork+0x10/0x10 [ 83.824093][ T50] ? __switch_to+0xc7d/0x1420 [ 83.824108][ T50] ? __pfx_kthread+0x10/0x10 [ 83.824120][ T50] ret_from_fork_asm+0x1a/0x30 [ 83.824135][ T50] [ 84.025186][ T5162] Bluetooth: hci0: command tx timeout [ 84.244661][ T6004] nbd2: detected capacity change from 0 to 63 [ 84.251972][ T6004] block nbd0: reconnected socket [ 84.252012][ T6003] block nbd0: Receive control failed (result -107) [ 84.263492][ T50] block nbd2: Receive control failed (result -104) [ 84.270061][ T5162] block nbd2: Receive control failed (result -32) 2026/03/25 10:38:16 executed programs: 6 [ 84.484362][ T6005] nbd3: detected capacity change from 0 to 63 [ 84.491724][ T6005] block nbd0: reconnected socket [ 84.491763][ T6003] block nbd0: Receive control failed (result -107) [ 84.497283][ T5162] block nbd3: Receive control failed (result -104) [ 84.503227][ T50] block nbd3: Receive control failed (result -32) [ 84.754391][ T6007] nbd4: detected capacity change from 0 to 63 [ 84.761716][ T6007] block nbd0: reconnected socket [ 84.761755][ T5162] block nbd0: Receive control failed (result -107) [ 84.767387][ T6003] block nbd4: Receive control failed (result -104) [ 84.773216][ T50] block nbd4: Receive control failed (result -32) [ 84.974350][ T6009] nbd5: detected capacity change from 0 to 63 [ 84.981794][ T6009] block nbd0: reconnected socket [ 84.981832][ T6003] block nbd0: Receive control failed (result -107) [ 84.987141][ T50] block nbd5: Receive control failed (result -104) [ 84.993295][ T5162] block nbd5: Receive control failed (result -32) [ 85.244354][ T6011] nbd6: detected capacity change from 0 to 63 [ 85.251679][ T6011] block nbd0: reconnected socket [ 85.251717][ T50] block nbd0: Receive control failed (result -107) [ 85.263186][ T6003] block nbd6: Receive control failed (result -104) [ 85.269752][ T5162] block nbd6: Receive control failed (result -32) [ 85.494354][ T6013] nbd7: detected capacity change from 0 to 63 [ 85.501715][ T6013] block nbd0: reconnected socket [ 85.501756][ T50] block nbd0: Receive control failed (result -107) [ 85.507298][ T5162] block nbd7: Receive control failed (result -104) [ 85.513211][ T6003] block nbd7: Receive control failed (result -32) [ 85.724337][ T6015] nbd8: detected capacity change from 0 to 63 [ 85.731715][ T6015] block nbd0: reconnected socket [ 85.731754][ T5162] block nbd0: Receive control failed (result -107) [ 85.737361][ T50] block nbd8: Receive control failed (result -104) [ 85.749726][ T6003] block nbd8: Receive control failed (result -32) [ 85.954351][ T6017] nbd9: detected capacity change from 0 to 63 [ 85.962186][ T6017] block nbd0: reconnected socket [ 85.962223][ T5162] block nbd0: Receive control failed (result -107) [ 85.967844][ T6003] block nbd9: Receive control failed (result -104) [ 85.980197][ T50] block nbd9: Receive control failed (result -32) [ 86.074441][ T6003] Bluetooth: hci0: command tx timeout [ 86.165804][ T6019] block nbd0: reconnected socket [ 86.165840][ T5162] block nbd0: Receive control failed (result -107) [ 86.166186][ T6003] block nbd10: Receive control failed (result -104) [ 86.184329][ T50] block nbd10: Receive control failed (result -32) [ 86.425571][ T6021] block nbd0: reconnected socket [ 86.425601][ T6003] block nbd0: Receive control failed (result -107) [ 86.431189][ T5162] block nbd11: Receive control failed (result -104) [ 86.437074][ T50] block nbd11: Receive control failed (result -32) [ 86.685584][ T6023] block nbd0: reconnected socket [ 86.685620][ T5162] block nbd0: Receive control failed (result -107) [ 86.691172][ T50] block nbd12: Receive control failed (result -104) [ 86.697276][ T6003] block nbd12: Receive control failed (result -32) [ 86.925510][ T6025] block nbd0: reconnected socket [ 86.925550][ T50] block nbd0: Receive control failed (result -107) [ 86.931004][ T5162] block nbd13: Receive control failed (result -32) [ 86.937012][ T6003] block nbd13: Receive control failed (result -32) [ 87.249288][ T5162] block nbd0: Receive control failed (result -107) [ 87.256973][ T6026] block nbd0: reconnected socket [ 87.262454][ T50] block nbd14: Receive control failed (result -32) [ 87.263655][ T6003] block nbd14: Receive control failed (result -32) [ 87.505350][ T6027] block nbd0: reconnected socket [ 87.505390][ T5162] block nbd0: Receive control failed (result -107) [ 87.510762][ T50] block nbd15: Receive control failed (result -32) [ 87.516868][ T6003] block nbd15: Receive control failed (result -32) [ 87.744305][ T6028] set_capacity_and_notify: 6 callbacks suppressed [ 87.744318][ T6028] nbd16: detected capacity change from 0 to 63 [ 87.758628][ T6028] block nbd0: reconnected socket [ 87.758673][ T50] block nbd0: Receive control failed (result -107) [ 87.764137][ T5162] block nbd16: Receive control failed (result -32) [ 87.770097][ T6003] block nbd16: Receive control failed (result -32) [ 88.004373][ T6030] nbd17: detected capacity change from 0 to 63 [ 88.011951][ T6030] block nbd0: reconnected socket [ 88.011994][ T50] block nbd0: Receive control failed (result -107) [ 88.017776][ T6003] block nbd17: Receive control failed (result -32) [ 88.023477][ T5162] block nbd17: Receive control failed (result -32) [ 88.154696][ T5162] Bluetooth: hci0: command tx timeout [ 88.314756][ T6032] nbd18: detected capacity change from 0 to 63 [ 88.322322][ T6032] block nbd0: reconnected socket [ 88.322365][ T6003] block nbd0: Receive control failed (result -107) [ 88.328007][ T50] block nbd18: Receive control failed (result -32) [ 88.340327][ T5162] block nbd18: Receive control failed (result -32) [ 88.564362][ T6034] nbd19: detected capacity change from 0 to 63 [ 88.571631][ T6034] block nbd0: reconnected socket [ 88.571673][ T6003] block nbd0: Receive control failed (result -107) [ 88.577249][ T50] block nbd19: Receive control failed (result -32) [ 88.583164][ T5162] block nbd19: Receive control failed (result -32) [ 88.824329][ T6036] nbd20: detected capacity change from 0 to 63 [ 88.832024][ T6036] block nbd0: reconnected socket [ 88.832074][ T50] block nbd0: Receive control failed (result -107) [ 88.843542][ T6003] block nbd20: Receive control failed (result -32) [ 88.850113][ T5162] block nbd20: Receive control failed (result -32) [ 89.064324][ T6038] nbd21: detected capacity change from 0 to 63 [ 89.071614][ T6038] block nbd0: reconnected socket [ 89.071657][ T50] block nbd0: Receive control failed (result -107) [ 89.077196][ T5162] block nbd21: Receive control failed (result -32) [ 89.083146][ T6003] block nbd21: Receive control failed (result -32) [ 89.314353][ T6040] nbd22: detected capacity change from 0 to 63 [ 89.321617][ T6040] block nbd0: reconnected socket [ 89.321663][ T5162] block nbd0: Receive control failed (result -107) [ 89.328799][ T6003] block nbd22: Receive control failed (result -32) [ 89.333122][ T50] block nbd22: Receive control failed (result -32) 2026/03/25 10:38:21 executed programs: 26 [ 89.554320][ T6042] nbd23: detected capacity change from 0 to 63 [ 89.561528][ T6042] block nbd0: reconnected socket [ 89.561571][ T6003] block nbd0: Receive control failed (result -107) [ 89.567149][ T50] block nbd23: Receive control failed (result -32) [ 89.573034][ T5162] block nbd23: Receive control failed (result -32) [ 89.794345][ T6044] nbd24: detected capacity change from 0 to 63 [ 89.801639][ T6044] block nbd0: reconnected socket [ 89.801707][ T50] block nbd0: Receive control failed (result -107) [ 89.813572][ T5162] block nbd24: Receive control failed (result -32) [ 89.820132][ T6003] block nbd24: Receive control failed (result -32) [ 90.034293][ T6046] nbd25: detected capacity change from 0 to 63 [ 90.041653][ T6046] block nbd0: reconnected socket [ 90.041687][ T50] block nbd0: Receive control failed (result -107) [ 90.053164][ T6003] block nbd25: Receive control failed (result -32) [ 90.055339][ T5162] block nbd25: Receive control failed (result -32) [ 90.295594][ T6048] block nbd0: reconnected socket [ 90.295636][ T50] block nbd0: Receive control failed (result -107) [ 90.307093][ T6003] block nbd26: Receive control failed (result -32) [ 90.313620][ T5162] block nbd26: Receive control failed (result -32) [ 90.535474][ T6050] block nbd0: reconnected socket [ 90.535518][ T6003] block nbd0: Receive control failed (result -107) [ 90.541009][ T50] block nbd27: Receive control failed (result -32) [ 90.547082][ T5162] block nbd27: Receive control failed (result -32) [ 90.755439][ T6052] block nbd0: reconnected socket [ 90.755484][ T50] block nbd0: Receive control failed (result -107) [ 90.760979][ T5162] block nbd28: Receive control failed (result -32) [ 90.766941][ T6003] block nbd28: Receive control failed (result -32) [ 91.015580][ T6054] block nbd0: reconnected socket [ 91.015625][ T5162] block nbd0: Receive control failed (result -107) [ 91.021122][ T50] block nbd29: Receive control failed (result -32) [ 91.027090][ T6003] block nbd29: Receive control failed (result -32) [ 91.265443][ T6056] block nbd0: reconnected socket [ 91.265483][ T6003] block nbd0: Receive control failed (result -107) [ 91.270982][ T50] block nbd30: Receive control failed (result -32) [ 91.276967][ T5162] block nbd30: Receive control failed (result -32) [ 91.515391][ T6058] block nbd0: reconnected socket [ 91.515431][ T50] block nbd0: Receive control failed (result -107) [ 91.520808][ T6003] block nbd31: Receive control failed (result -32) [ 91.526932][ T5162] block nbd31: Receive control failed (result -32) [ 91.755355][ T6060] block nbd0: reconnected socket [ 91.755394][ T6003] block nbd0: Receive control failed (result -107) [ 91.760842][ T50] block nbd32: Receive control failed (result -32) [ 91.766900][ T5162] block nbd32: Receive control failed (result -32) [ 92.005703][ T6062] block nbd0: reconnected socket [ 92.005753][ T50] block nbd0: Receive control failed (result -107) [ 92.011251][ T6003] block nbd33: Receive control failed (result -32) [ 92.017216][ T5162] block nbd33: Receive control failed (result -32) [ 92.255406][ T6064] block nbd0: reconnected socket [ 92.255445][ T50] block nbd0: Receive control failed (result -107) [ 92.260988][ T5162] block nbd34: Receive control failed (result -32) [ 92.266922][ T6003] block nbd34: Receive control failed (result -32) [ 92.505423][ T6066] block nbd0: reconnected socket [ 92.505464][ T5162] block nbd0: Receive control failed (result -107) [ 92.510917][ T6003] block nbd35: Receive control failed (result -32) [ 92.517122][ T50] block nbd35: Receive control failed (result -32) [ 92.754318][ T6068] set_capacity_and_notify: 10 callbacks suppressed [ 92.754334][ T6068] nbd36: detected capacity change from 0 to 63 [ 92.768117][ T6068] block nbd0: reconnected socket [ 92.768160][ T6003] block nbd0: Receive control failed (result -107) [ 92.773590][ T5162] block nbd36: Receive control failed (result -32) [ 92.779617][ T50] block nbd36: Receive control failed (result -32)