Warning: Permanently added '10.128.0.50' (ED25519) to the list of known hosts. 2026/04/07 03:51:17 parsed 1 programs [ 70.549291][ T4187] cgroup: Unknown subsys name 'net' [ 70.663334][ T4187] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 71.369749][ T1421] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.376407][ T1421] ieee802154 phy1 wpan1: encryption failed: -22 [ 72.225290][ T4187] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 75.066420][ T154] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.074524][ T154] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.092779][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.118073][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.126050][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.134479][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 76.235322][ T4272] chnl_net:caif_netlink_parms(): no params data found [ 76.287965][ T4272] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.295683][ T4272] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.303749][ T4272] device bridge_slave_0 entered promiscuous mode [ 76.312903][ T4272] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.320237][ T4272] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.328321][ T4272] device bridge_slave_1 entered promiscuous mode [ 76.350416][ T4272] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.362159][ T4272] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.385253][ T4272] team0: Port device team_slave_0 added [ 76.393616][ T4272] team0: Port device team_slave_1 added [ 76.431108][ T4272] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.438212][ T4272] 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 1560 would solve the problem. [ 76.464873][ T4272] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.480270][ T4272] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.487773][ T4272] 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 1560 would solve the problem. [ 76.514917][ T4272] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.566667][ T4272] device hsr_slave_0 entered promiscuous mode [ 76.573792][ T4272] device hsr_slave_1 entered promiscuous mode [ 76.711689][ T4272] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 76.723371][ T4272] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.734049][ T4272] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.757288][ T4272] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.782762][ T4272] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.790583][ T4272] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.798728][ T4272] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.805927][ T4272] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.873016][ T4272] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.909260][ T1287] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.920137][ T1287] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.929170][ T1287] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.938963][ T1287] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 76.952584][ T4272] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.966532][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.975231][ T1236] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.982361][ T1236] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.009856][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.019067][ T1236] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.026392][ T1236] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.061166][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.071746][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 77.083874][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.101740][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 77.111154][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.122938][ T4272] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.245757][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 77.254113][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 77.268455][ T4272] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.301571][ T1287] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 77.311727][ T1287] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 77.350090][ T1287] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 77.359834][ T1287] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 77.369329][ T1287] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 77.378881][ T1287] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 77.389947][ T4272] device veth0_vlan entered promiscuous mode [ 77.405171][ T4272] device veth1_vlan entered promiscuous mode [ 77.430744][ T1287] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.448303][ T1287] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 77.456996][ T1287] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 77.465709][ T1287] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 77.477607][ T4272] device veth0_macvtap entered promiscuous mode [ 77.488939][ T4272] device veth1_macvtap entered promiscuous mode [ 77.508524][ T4272] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.518798][ T1287] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 77.527455][ T1287] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 77.535598][ T1287] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 77.553630][ T1287] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 77.567664][ T4272] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 77.577390][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 77.586591][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 77.609781][ T4272] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.622498][ T4272] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.631504][ T4272] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.641997][ T4272] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2026/04/07 03:51:28 executed programs: 0 [ 78.702435][ T4293] chnl_net:caif_netlink_parms(): no params data found [ 78.778154][ T4293] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.785360][ T4293] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.796720][ T4293] device bridge_slave_0 entered promiscuous mode [ 78.805330][ T4293] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.816332][ T4293] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.824776][ T4293] device bridge_slave_1 entered promiscuous mode [ 78.852704][ T4293] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.864570][ T4293] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.895194][ T4293] team0: Port device team_slave_0 added [ 78.903678][ T4293] team0: Port device team_slave_1 added [ 78.931501][ T4293] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.938682][ T4293] 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 1560 would solve the problem. [ 78.965146][ T4293] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.978873][ T4293] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.985865][ T4293] 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 1560 would solve the problem. [ 79.012334][ T4293] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 79.058177][ T4293] device hsr_slave_0 entered promiscuous mode [ 79.065694][ T4293] device hsr_slave_1 entered promiscuous mode [ 79.073078][ T4293] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 79.083303][ T4293] Cannot create hsr debugfs directory [ 79.188832][ T4293] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.647294][ T4278] Bluetooth: hci0: command 0x0409 tx timeout [ 82.394192][ T4293] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.652225][ T4293] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.706410][ T4293] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.737388][ T4278] Bluetooth: hci0: command 0x041b tx timeout [ 82.821503][ T4293] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 82.833394][ T4293] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 82.857635][ T4293] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 82.868004][ T4293] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 82.930742][ T4293] 8021q: adding VLAN 0 to HW filter on device bond0 [ 82.955336][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 82.963410][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 82.974296][ T4293] 8021q: adding VLAN 0 to HW filter on device team0 [ 82.987773][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 82.997125][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 83.007644][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.014908][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 83.024048][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 83.034410][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 83.044321][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 83.053007][ T1236] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.060248][ T1236] bridge0: port 2(bridge_slave_1) entered forwarding state [ 83.072574][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 83.104407][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 83.120002][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 83.131520][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 83.141773][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 83.151611][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 83.167780][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 83.176065][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 83.185693][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 83.194837][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 83.204364][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 83.230999][ T4293] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 83.338970][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 83.347539][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 83.359860][ T4293] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 83.374718][ T9] device hsr_slave_0 left promiscuous mode [ 83.381940][ T9] device hsr_slave_1 left promiscuous mode [ 83.389942][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 83.397567][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 83.406045][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 83.415003][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 83.423187][ T9] device bridge_slave_1 left promiscuous mode [ 83.430713][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 83.444761][ T9] device bridge_slave_0 left promiscuous mode [ 83.452584][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 83.472269][ T9] device veth1_macvtap left promiscuous mode [ 83.478946][ T9] device veth0_macvtap left promiscuous mode [ 83.485023][ T9] device veth1_vlan left promiscuous mode [ 83.491172][ T9] device veth0_vlan left promiscuous mode [ 83.665068][ T9] team0 (unregistering): Port device team_slave_1 removed [ 83.682284][ T9] team0 (unregistering): Port device team_slave_0 removed [ 83.695630][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 83.711106][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 83.771393][ T9] bond0 (unregistering): Released all slaves [ 83.858425][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 83.867598][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 83.891555][ T4293] device veth0_vlan entered promiscuous mode [ 83.899763][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 83.908530][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 83.918045][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 83.925915][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 83.943562][ T4293] device veth1_vlan entered promiscuous mode [ 83.957697][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 83.984928][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 83.993872][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 84.005566][ T4293] device veth0_macvtap entered promiscuous mode [ 84.026732][ T4293] device veth1_macvtap entered promiscuous mode [ 84.052861][ T4293] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 84.061594][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 84.070121][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 84.078894][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 84.088723][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 84.100619][ T4293] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 84.108557][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 84.117850][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 84.129961][ T4293] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.139104][ T4293] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.148036][ T4293] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.157199][ T4293] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 84.223650][ T1287] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.238108][ T1287] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.247767][ T1287] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready 2026/04/07 03:51:33 executed programs: 2 [ 84.268028][ T1236] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.277478][ T1236] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.285104][ T1236] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 84.342765][ T4305] loop5: detected capacity change from 0 to 7 [ 84.497526][ T4305] [ 84.499922][ T4305] ====================================================== [ 84.507032][ T4305] WARNING: possible circular locking dependency detected [ 84.514105][ T4305] syzkaller #0 Not tainted [ 84.518537][ T4305] ------------------------------------------------------ [ 84.525682][ T4305] syz.0.17/4305 is trying to acquire lock: [ 84.531534][ T4305] ffff888077224138 ((wq_completion)loop5){+.+.}-{0:0}, at: flush_workqueue+0x150/0x13d0 [ 84.541332][ T4305] [ 84.541332][ T4305] but task is already holding lock: [ 84.548984][ T4305] ffff888146dbe468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xaa/0xb90 [ 84.557819][ T4305] [ 84.557819][ T4305] which lock already depends on the new lock. [ 84.557819][ T4305] [ 84.568343][ T4305] [ 84.568343][ T4305] the existing dependency chain (in reverse order) is: [ 84.577570][ T4305] [ 84.577570][ T4305] -> #8 (&lo->lo_mutex){+.+.}-{3:3}: [ 84.585084][ T4305] __mutex_lock_common+0x1e3/0x2400 [ 84.590960][ T4305] mutex_lock_killable_nested+0x17/0x20 [ 84.597150][ T4305] lo_open+0x6a/0x100 [ 84.601685][ T4305] blkdev_get_whole+0x90/0x390 [ 84.606992][ T4305] blkdev_get_by_dev+0x2d0/0xa60 [ 84.612481][ T4305] blkdev_open+0x12d/0x2c0 [ 84.617443][ T4305] do_dentry_open+0x7ff/0xf80 [ 84.622667][ T4305] path_openat+0x26f5/0x2fa0 [ 84.627801][ T4305] do_filp_open+0x1e2/0x410 [ 84.633128][ T4305] do_sys_openat2+0x150/0x4b0 [ 84.638435][ T4305] __x64_sys_openat+0x135/0x160 [ 84.644034][ T4305] do_syscall_64+0x4c/0xa0 [ 84.649216][ T4305] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.655678][ T4305] [ 84.655678][ T4305] -> #7 (&disk->open_mutex){+.+.}-{3:3}: [ 84.663536][ T4305] __mutex_lock_common+0x1e3/0x2400 [ 84.669309][ T4305] mutex_lock_nested+0x17/0x20 [ 84.674621][ T4305] bd_register_pending_holders+0x33/0x310 [ 84.680888][ T4305] device_add_disk+0x5a7/0xd40 [ 84.686211][ T4305] md_alloc+0x809/0xc00 [ 84.690918][ T4305] blk_request_module+0x26e/0x290 [ 84.696489][ T4305] blkdev_get_no_open+0x38/0x1d0 [ 84.701969][ T4305] blkdev_get_by_dev+0x77/0xa60 [ 84.707359][ T4305] swsusp_check+0xa1/0x2b0 [ 84.712425][ T4305] software_resume+0xc6/0x3b0 [ 84.717675][ T4305] resume_store+0xe4/0x130 [ 84.722759][ T4305] kernfs_fop_write_iter+0x379/0x4c0 [ 84.728792][ T4305] vfs_write+0x745/0xd60 [ 84.733682][ T4305] ksys_write+0x152/0x260 [ 84.738558][ T4305] do_syscall_64+0x4c/0xa0 [ 84.743524][ T4305] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.749970][ T4305] [ 84.749970][ T4305] -> #6 (disks_mutex){+.+.}-{3:3}: [ 84.757299][ T4305] __mutex_lock_common+0x1e3/0x2400 [ 84.763048][ T4305] mutex_lock_nested+0x17/0x20 [ 84.768386][ T4305] md_alloc+0x48/0xc00 [ 84.773145][ T4305] blk_request_module+0x26e/0x290 [ 84.778941][ T4305] blkdev_get_no_open+0x38/0x1d0 [ 84.784424][ T4305] blkdev_get_by_dev+0x77/0xa60 [ 84.789842][ T4305] swsusp_check+0xa1/0x2b0 [ 84.794990][ T4305] software_resume+0xc6/0x3b0 [ 84.800241][ T4305] resume_store+0xe4/0x130 [ 84.805209][ T4305] kernfs_fop_write_iter+0x379/0x4c0 [ 84.807208][ T4263] Bluetooth: hci0: command 0x040f tx timeout [ 84.811087][ T4305] vfs_write+0x745/0xd60 [ 84.811109][ T4305] ksys_write+0x152/0x260 [ 84.826769][ T4305] do_syscall_64+0x4c/0xa0 [ 84.831733][ T4305] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.838177][ T4305] [ 84.838177][ T4305] -> #5 (major_names_lock){+.+.}-{3:3}: [ 84.845961][ T4305] __mutex_lock_common+0x1e3/0x2400 [ 84.851719][ T4305] mutex_lock_nested+0x17/0x20 [ 84.857040][ T4305] blk_request_module+0x31/0x290 [ 84.862551][ T4305] blkdev_get_no_open+0x38/0x1d0 [ 84.868031][ T4305] blkdev_get_by_dev+0x77/0xa60 [ 84.873426][ T4305] swsusp_check+0xa1/0x2b0 [ 84.878390][ T4305] software_resume+0xc6/0x3b0 [ 84.883622][ T4305] resume_store+0xe4/0x130 [ 84.888678][ T4305] kernfs_fop_write_iter+0x379/0x4c0 [ 84.894518][ T4305] vfs_write+0x745/0xd60 [ 84.899321][ T4305] ksys_write+0x152/0x260 [ 84.904251][ T4305] do_syscall_64+0x4c/0xa0 [ 84.909250][ T4305] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.915788][ T4305] [ 84.915788][ T4305] -> #4 (system_transition_mutex/1){+.+.}-{3:3}: [ 84.924348][ T4305] __mutex_lock_common+0x1e3/0x2400 [ 84.930305][ T4305] mutex_lock_nested+0x17/0x20 [ 84.935720][ T4305] software_resume+0x7c/0x3b0 [ 84.941027][ T4305] resume_store+0xe4/0x130 [ 84.946022][ T4305] kernfs_fop_write_iter+0x379/0x4c0 [ 84.951874][ T4305] vfs_write+0x745/0xd60 [ 84.956670][ T4305] ksys_write+0x152/0x260 [ 84.961554][ T4305] do_syscall_64+0x4c/0xa0 [ 84.966543][ T4305] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 84.972995][ T4305] [ 84.972995][ T4305] -> #3 (&of->mutex){+.+.}-{3:3}: [ 84.980255][ T4305] __mutex_lock_common+0x1e3/0x2400 [ 84.986013][ T4305] mutex_lock_nested+0x17/0x20 [ 84.991332][ T4305] kernfs_seq_start+0x51/0x3c0 [ 84.996766][ T4305] seq_read_iter+0x3c4/0xd50 [ 85.001910][ T4305] vfs_read+0x759/0xd60 [ 85.006731][ T4305] ksys_read+0x152/0x260 [ 85.011520][ T4305] do_syscall_64+0x4c/0xa0 [ 85.016509][ T4305] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.022957][ T4305] [ 85.022957][ T4305] -> #2 (&p->lock){+.+.}-{3:3}: [ 85.030124][ T4305] __mutex_lock_common+0x1e3/0x2400 [ 85.035884][ T4305] mutex_lock_nested+0x17/0x20 [ 85.041196][ T4305] seq_read_iter+0xad/0xd50 [ 85.046252][ T4305] do_iter_readv_writev+0x47e/0x5f0 [ 85.052004][ T4305] do_iter_read+0x20b/0x7c0 [ 85.057061][ T4305] loop_process_work+0x16dd/0x24a0 [ 85.062717][ T4305] process_one_work+0x85f/0x1010 [ 85.068206][ T4305] worker_thread+0xaa6/0x1290 [ 85.073434][ T4305] kthread+0x436/0x520 [ 85.078054][ T4305] ret_from_fork+0x1f/0x30 [ 85.083021][ T4305] [ 85.083021][ T4305] -> #1 ((work_completion)(&lo->rootcg_work)){+.+.}-{0:0}: [ 85.092440][ T4305] process_one_work+0x7bb/0x1010 [ 85.097955][ T4305] worker_thread+0xaa6/0x1290 [ 85.103222][ T4305] kthread+0x436/0x520 [ 85.107855][ T4305] ret_from_fork+0x1f/0x30 [ 85.112968][ T4305] [ 85.112968][ T4305] -> #0 ((wq_completion)loop5){+.+.}-{0:0}: [ 85.121196][ T4305] __lock_acquire+0x2c42/0x7d10 [ 85.126724][ T4305] lock_acquire+0x19e/0x400 [ 85.131782][ T4305] flush_workqueue+0x16c/0x13d0 [ 85.137246][ T4305] drain_workqueue+0xcf/0x380 [ 85.142478][ T4305] destroy_workqueue+0x7b/0xb20 [ 85.147980][ T4305] __loop_clr_fd+0x234/0xb90 [ 85.153129][ T4305] blkdev_put+0x53f/0x7d0 [ 85.158053][ T4305] blkdev_close+0x76/0xa0 [ 85.162933][ T4305] __fput+0x234/0x930 [ 85.167465][ T4305] task_work_run+0x125/0x1a0 [ 85.172697][ T4305] exit_to_user_mode_loop+0x10f/0x130 [ 85.178727][ T4305] exit_to_user_mode_prepare+0xee/0x180 [ 85.184825][ T4305] syscall_exit_to_user_mode+0x16/0x40 [ 85.190956][ T4305] do_syscall_64+0x58/0xa0 [ 85.195936][ T4305] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.202501][ T4305] [ 85.202501][ T4305] other info that might help us debug this: [ 85.202501][ T4305] [ 85.213080][ T4305] Chain exists of: [ 85.213080][ T4305] (wq_completion)loop5 --> &disk->open_mutex --> &lo->lo_mutex [ 85.213080][ T4305] [ 85.226695][ T4305] Possible unsafe locking scenario: [ 85.226695][ T4305] [ 85.234173][ T4305] CPU0 CPU1 [ 85.239732][ T4305] ---- ---- [ 85.245219][ T4305] lock(&lo->lo_mutex); [ 85.249587][ T4305] lock(&disk->open_mutex); [ 85.256847][ T4305] lock(&lo->lo_mutex); [ 85.263646][ T4305] lock((wq_completion)loop5); [ 85.268941][ T4305] [ 85.268941][ T4305] *** DEADLOCK *** [ 85.268941][ T4305] [ 85.277104][ T4305] 2 locks held by syz.0.17/4305: [ 85.282079][ T4305] #0: ffff888021084518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf9/0x7d0 [ 85.291565][ T4305] #1: ffff888146dbe468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xaa/0xb90 [ 85.300847][ T4305] [ 85.300847][ T4305] stack backtrace: [ 85.306787][ T4305] CPU: 0 PID: 4305 Comm: syz.0.17 Not tainted syzkaller #0 [ 85.314030][ T4305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 85.324122][ T4305] Call Trace: [ 85.327455][ T4305] [ 85.330419][ T4305] dump_stack_lvl+0x188/0x250 [ 85.335127][ T4305] ? load_image+0x400/0x400 [ 85.339659][ T4305] ? show_regs_print_info+0x20/0x20 [ 85.345005][ T4305] ? print_circular_bug+0x12b/0x1a0 [ 85.350246][ T4305] check_noncircular+0x296/0x330 [ 85.355234][ T4305] ? add_chain_block+0x940/0x940 [ 85.360422][ T4305] ? lockdep_lock+0xf1/0x1f0 [ 85.365060][ T4305] ? lockdep_unlock+0x143/0x2e0 [ 85.369961][ T4305] ? mark_lock+0x94/0x320 [ 85.374409][ T4305] __lock_acquire+0x2c42/0x7d10 [ 85.379306][ T4305] ? __lock_acquire+0x13bc/0x7d10 [ 85.384372][ T4305] ? verify_lock_unused+0x140/0x140 [ 85.389605][ T4305] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 85.395837][ T4305] ? memset+0x1e/0x40 [ 85.399885][ T4305] lock_acquire+0x19e/0x400 [ 85.404536][ T4305] ? flush_workqueue+0x150/0x13d0 [ 85.409615][ T4305] ? __mutex_trylock_common+0x155/0x260 [ 85.415311][ T4305] ? read_lock_is_recursive+0x10/0x10 [ 85.420817][ T4305] ? __init_swait_queue_head+0xa5/0x150 [ 85.426410][ T4305] flush_workqueue+0x16c/0x13d0 [ 85.431299][ T4305] ? flush_workqueue+0x150/0x13d0 [ 85.436375][ T4305] ? __lock_acquire+0x7d10/0x7d10 [ 85.441451][ T4305] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 85.447480][ T4305] ? _raw_spin_lock_irqsave+0x8b/0x100 [ 85.452979][ T4305] ? rcu_work_rcufn+0x120/0x120 [ 85.457985][ T4305] ? __mutex_unlock_slowpath+0x1b0/0x6c0 [ 85.463672][ T4305] ? finish_wait+0xc0/0x1d0 [ 85.468230][ T4305] drain_workqueue+0xcf/0x380 [ 85.472936][ T4305] destroy_workqueue+0x7b/0xb20 [ 85.477886][ T4305] __loop_clr_fd+0x234/0xb90 [ 85.482498][ T4305] ? lo_release+0x172/0x1f0 [ 85.487114][ T4305] ? lo_open+0x100/0x100 [ 85.491361][ T4305] blkdev_put+0x53f/0x7d0 [ 85.495786][ T4305] blkdev_close+0x76/0xa0 [ 85.500124][ T4305] ? blkdev_open+0x2c0/0x2c0 [ 85.504822][ T4305] __fput+0x234/0x930 [ 85.508822][ T4305] task_work_run+0x125/0x1a0 [ 85.513423][ T4305] exit_to_user_mode_loop+0x10f/0x130 [ 85.518796][ T4305] exit_to_user_mode_prepare+0xee/0x180 [ 85.524366][ T4305] syscall_exit_to_user_mode+0x16/0x40 [ 85.529854][ T4305] do_syscall_64+0x58/0xa0 [ 85.534275][ T4305] ? clear_bhb_loop+0x30/0x80 [ 85.538990][ T4305] ? clear_bhb_loop+0x30/0x80 [ 85.543682][ T4305] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 85.549587][ T4305] RIP: 0033:0x7f2db5fca819 [ 85.554094][ T4305] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 85.573724][ T4305] RSP: 002b:00007ffe5c23f568 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 85.582145][ T4305] RAX: 0000000000000000 RBX: 00007ffe5c23f650 RCX: 00007f2db5fca819 [ 85.590125][ T4305] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 85.598312][ T4305] RBP: 0000000000014944 R08: 0000000000000001 R09: 0000000000000000 [ 85.606298][ T4305] R10: 0000001b30420000 R11: 0000000000000246 R12: 0000000000000000 [ 85.614300][ T4305] R13: 00007f2db6243fac R14: 00007f2db6243fa8 R15: 00007f2db6243fa0 [ 85.622397][ T4305] [ 85.714466][ T4306] loop5: detected capacity change from 0 to 7 [ 85.767656][ T4306] PM: Image not found (code -6) [ 85.859426][ T4307] loop5: detected capacity change from 0 to 7 [ 85.897325][ T4307] PM: Image not found (code -6) [ 85.986570][ T4309] loop5: detected capacity change from 0 to 7 [ 86.028314][ T4309] PM: Image not found (code -6) [ 86.101417][ T4310] loop5: detected capacity change from 0 to 7 [ 86.145649][ T4310] PM: Image not found (code -6) [ 86.234004][ T4311] loop5: detected capacity change from 0 to 7 [ 86.280077][ T4311] PM: Image not found (code -6) [ 86.359592][ T4312] loop5: detected capacity change from 0 to 7 [ 86.407426][ T4312] PM: Image not found (code -6) [ 86.489576][ T4313] loop5: detected capacity change from 0 to 7 [ 86.532768][ T4313] PM: Image not found (code -6) [ 86.623867][ T4314] loop5: detected capacity change from 0 to 7 [ 86.662405][ T4314] PM: Image not found (code -6) [ 86.726557][ T23] cfg80211: failed to load regulatory.db [ 86.750567][ T4315] loop5: detected capacity change from 0 to 7 [ 86.795158][ T4315] PM: Image not found (code -6) [ 86.886892][ T23] Bluetooth: hci0: command 0x0419 tx timeout [ 86.908426][ T4316] PM: Image not found (code -6) [ 87.045212][ T4317] PM: Image not found (code -6) [ 87.166706][ T4318] PM: Image not found (code -6) [ 87.273396][ T4319] PM: Image not found (code -6) [ 87.403076][ T4320] PM: Image not found (code -6) [ 87.519067][ T4321] PM: Image not found (code -6) [ 87.634330][ T4322] PM: Image not found (code -6) [ 87.761090][ T4323] PM: Image not found (code -6) [ 87.870993][ T4324] PM: Image not found (code -6) [ 87.963743][ T4325] PM: Image not found (code -6) [ 88.071379][ T4326] PM: Image not found (code -6) [ 88.199723][ T4327] PM: Image not found (code -6) [ 88.324415][ T4328] PM: Image not found (code -6) [ 88.502258][ T4329] PM: Image not found (code -6) [ 88.629501][ T4330] PM: Image not found (code -6) [ 88.763817][ T4331] PM: Image not found (code -6) [ 88.882676][ T4332] PM: Image not found (code -6) [ 88.995946][ T4333] PM: Image not found (code -6) [ 89.115875][ T4334] PM: Image not found (code -6) [ 89.221458][ T4335] PM: Image not found (code -6) 2026/04/07 03:51:38 executed programs: 32 [ 89.342766][ T4336] PM: Image not found (code -6) [ 89.417693][ T4337] set_capacity_and_notify: 21 callbacks suppressed [ 89.417709][ T4337] loop5: detected capacity change from 0 to 7 [ 89.468828][ T4337] PM: Image not found (code -6) [ 89.530199][ T4338] loop5: detected capacity change from 0 to 7 [ 89.578384][ T4338] PM: Image not found (code -6) [ 89.679162][ T4339] loop5: detected capacity change from 0 to 7 [ 89.720773][ T4339] PM: Image not found (code -6) [ 89.837268][ T4340] loop5: detected capacity change from 0 to 7 [ 89.874599][ T4340] PM: Image not found (code -6) [ 89.968763][ T4341] loop5: detected capacity change from 0 to 7 [ 90.008122][ T4341] PM: Image not found (code -6) [ 90.096288][ T4342] loop5: detected capacity change from 0 to 7 [ 90.133871][ T4342] PM: Image not found (code -6) [ 90.235847][ T4343] loop5: detected capacity change from 0 to 7 [ 90.275532][ T4343] PM: Image not found (code -6) [ 90.350686][ T4344] loop5: detected capacity change from 0 to 7 [ 90.390440][ T4344] PM: Image not found (code -6) [ 90.478404][ T4345] loop5: detected capacity change from 0 to 7 [ 90.515193][ T4345] PM: Image not found (code -6) [ 90.583528][ T4346] loop5: detected capacity change from 0 to 7 [ 90.624167][ T4346] PM: Image not found (code -6) [ 90.744702][ T4347] PM: Image not found (code -6) [ 90.858806][ T4348] PM: Image not found (code -6) [ 90.886415][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #100!!! [ 90.959049][ T4349] PM: Image not found (code -6) [ 91.034157][ T4350] PM: Image not found (code -6) [ 91.150961][ T4351] PM: Image not found (code -6) [ 91.274633][ T4352] PM: Image not found (code -6) [ 91.370599][ T4353] PM: Image not found (code -6) [ 91.495837][ T4354] PM: Image not found (code -6) [ 91.621571][ T4355] PM: Image not found (code -6) [ 91.774674][ T4356] PM: Image not found (code -6) [ 91.883704][ T4357] PM: Image not found (code -6) [ 92.003130][ T4358] PM: Image not found (code -6) [ 92.123381][ T4359] PM: Image not found (code -6) [ 92.242289][ T4360] PM: Image not found (code -6) [ 92.340869][ T4361] PM: Image not found (code -6) [ 92.459381][ T4362] PM: Image not found (code -6) [ 92.564355][ T4363] PM: Image not found (code -6) [ 92.697735][ T4364] PM: Image not found (code -6) [ 92.800579][ T4365] PM: Image not found (code -6) [ 92.916864][ T4366] PM: Image not found (code -6) [ 93.032947][ T4367] PM: Image not found (code -6) [ 93.152106][ T4368] PM: Image not found (code -6) [ 93.283748][ T4369] PM: Image not found (code -6) [ 93.393245][ T4370] PM: Image not found (code -6) [ 93.512386][ T4371] PM: Image not found (code -6) [ 93.628602][ T4372] PM: Image not found (code -6) [ 93.742971][ T4373] PM: Image not found (code -6) [ 93.868171][ T4374] PM: Image not found (code -6) [ 93.994497][ T4375] PM: Image not found (code -6) [ 94.108947][ T4376] PM: Image not found (code -6) [ 94.231895][ T4377] PM: Image not found (code -6) 2026/04/07 03:51:43 executed programs: 74 [ 94.358202][ T4378] PM: Image not found (code -6) [ 94.445037][ T4379] set_capacity_and_notify: 32 callbacks suppressed [ 94.445054][ T4379] loop5: detected capacity change from 0 to 7 [ 94.501799][ T4379] PM: Image not found (code -6)