Warning: Permanently added '10.128.0.229' (ED25519) to the list of known hosts. 2025/12/02 23:29:37 parsed 1 programs [ 73.547460][ T4189] cgroup: Unknown subsys name 'net' [ 73.711411][ T4189] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 75.308693][ T4189] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 78.200498][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.214933][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.237684][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 78.256461][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.267099][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.278409][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 79.093128][ T1128] ODEBUG: Out of memory. ODEBUG disabled [ 79.607769][ T4267] chnl_net:caif_netlink_parms(): no params data found [ 79.662619][ T4267] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.672950][ T4267] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.684836][ T4267] device bridge_slave_0 entered promiscuous mode [ 79.696924][ T4267] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.705959][ T4267] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.715041][ T4267] device bridge_slave_1 entered promiscuous mode [ 79.740854][ T4267] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 79.754638][ T4267] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 79.787305][ T4267] team0: Port device team_slave_0 added [ 79.816502][ T4267] team0: Port device team_slave_1 added [ 79.840195][ T4267] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 79.848549][ T4267] 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. [ 79.887055][ T4267] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 79.906985][ T4267] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 79.915978][ T4267] 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. [ 79.951781][ T4267] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 80.006586][ T4267] device hsr_slave_0 entered promiscuous mode [ 80.014893][ T4267] device hsr_slave_1 entered promiscuous mode [ 80.160352][ T4267] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 80.171741][ T4267] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 80.185012][ T4267] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 80.195413][ T4267] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 80.239308][ T4267] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.249763][ T4267] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.259330][ T4267] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.267241][ T4267] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.295677][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.306106][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.355638][ T4267] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.370990][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 80.381224][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 80.395631][ T4267] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.425902][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 80.436328][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 80.446474][ T1404] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.454107][ T1404] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.468365][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 80.478874][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 80.488345][ T1404] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.496752][ T1404] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.523275][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 80.536063][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 80.549351][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 80.559800][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 80.570919][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 80.582804][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 80.592949][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 80.619490][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 80.628740][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 80.641353][ T4267] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 80.656148][ T4267] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 80.666155][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 80.675354][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 80.804070][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 80.814780][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 80.830157][ T4267] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 80.880473][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 80.890444][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 80.909347][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 80.918577][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 80.929137][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 80.937785][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 80.950126][ T4267] device veth0_vlan entered promiscuous mode [ 80.970150][ T4267] device veth1_vlan entered promiscuous mode [ 80.997335][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 81.006468][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 81.017510][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 81.027507][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 81.039906][ T4267] device veth0_macvtap entered promiscuous mode [ 81.058551][ T4267] device veth1_macvtap entered promiscuous mode [ 81.078735][ T4267] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 81.089587][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 81.102624][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 81.111899][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 81.124409][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 81.140792][ T4267] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 81.149642][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 81.160027][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 81.175634][ T4267] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.187509][ T4267] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.197624][ T4267] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.207917][ T4267] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2025/12/02 23:29:49 executed programs: 0 [ 82.463127][ T4303] chnl_net:caif_netlink_parms(): no params data found [ 82.523237][ T4303] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.531889][ T4303] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.540563][ T4303] device bridge_slave_0 entered promiscuous mode [ 82.551280][ T4303] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.559965][ T4303] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.570035][ T4303] device bridge_slave_1 entered promiscuous mode [ 82.597614][ T4303] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 82.611067][ T4303] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 82.642014][ T4303] team0: Port device team_slave_0 added [ 82.650787][ T4303] team0: Port device team_slave_1 added [ 82.683564][ T4303] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 82.691926][ T4303] 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. [ 82.724416][ T4303] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 82.738913][ T4303] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 82.748334][ T4303] 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. [ 82.782050][ T4303] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 82.824588][ T4303] device hsr_slave_0 entered promiscuous mode [ 82.832720][ T4303] device hsr_slave_1 entered promiscuous mode [ 82.842824][ T4303] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 82.851379][ T4303] Cannot create hsr debugfs directory [ 82.894632][ T1128] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 84.374513][ T13] Bluetooth: hci0: command 0x0409 tx timeout [ 85.509675][ T1128] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 85.669248][ T1128] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 85.761057][ T1128] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 86.464046][ T4249] Bluetooth: hci0: command 0x041b tx timeout [ 86.668605][ T4303] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 86.678373][ T4303] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 86.691055][ T4303] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 86.714177][ T4303] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 86.786813][ T4303] 8021q: adding VLAN 0 to HW filter on device bond0 [ 86.812095][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 86.822797][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 86.838477][ T1128] device hsr_slave_0 left promiscuous mode [ 86.845979][ T1128] device hsr_slave_1 left promiscuous mode [ 86.852800][ T1128] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 86.862487][ T1128] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 86.872124][ T1128] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 86.880631][ T1128] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 86.889890][ T1128] device bridge_slave_1 left promiscuous mode [ 86.897320][ T1128] bridge0: port 2(bridge_slave_1) entered disabled state [ 86.910388][ T1128] device bridge_slave_0 left promiscuous mode [ 86.918384][ T1128] bridge0: port 1(bridge_slave_0) entered disabled state [ 86.936927][ T7] cfg80211: failed to load regulatory.db [ 86.957148][ T1128] device veth1_macvtap left promiscuous mode [ 86.965428][ T1128] device veth0_macvtap left promiscuous mode [ 86.972363][ T1128] device veth1_vlan left promiscuous mode [ 86.980632][ T1128] device veth0_vlan left promiscuous mode [ 87.212725][ T1128] team0 (unregistering): Port device team_slave_1 removed [ 87.230414][ T1128] team0 (unregistering): Port device team_slave_0 removed [ 87.246715][ T1128] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 87.262731][ T1128] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 87.339435][ T1128] bond0 (unregistering): Released all slaves [ 87.451131][ T4303] 8021q: adding VLAN 0 to HW filter on device team0 [ 87.469063][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 87.478923][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 87.488281][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.495603][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 87.509703][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 87.529591][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 87.539740][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 87.555176][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.563578][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 87.578302][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 87.591573][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 87.613914][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 87.628519][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 87.638160][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 87.650155][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 87.667738][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 87.684539][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 87.707245][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 87.722837][ T4303] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 87.737617][ T4303] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 87.749162][ T4349] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 87.761935][ T4349] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 87.938542][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 87.949969][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 88.007884][ T4303] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 88.058196][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 88.071255][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 88.095221][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 88.106386][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 88.119866][ T4303] device veth0_vlan entered promiscuous mode [ 88.129883][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 88.141071][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 88.160433][ T4303] device veth1_vlan entered promiscuous mode [ 88.188791][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 88.200408][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 88.210682][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 88.220101][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 88.234394][ T4303] device veth0_macvtap entered promiscuous mode [ 88.247168][ T4303] device veth1_macvtap entered promiscuous mode [ 88.268552][ T4303] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 88.279977][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 88.290015][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 88.300193][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 88.309757][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 88.325295][ T4303] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 88.333644][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 88.344013][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 88.359049][ T4303] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.369795][ T4303] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.379753][ T4303] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.389845][ T4303] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.462909][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 88.483646][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 88.493538][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 88.505691][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 88.514913][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 88.527124][ T1404] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 88.535943][ T13] Bluetooth: hci0: command 0x040f tx timeout [ 88.847802][ T4354] loop0: detected capacity change from 0 to 32768 [ 88.877778][ T4354] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.17 (4354) [ 88.929465][ T4354] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 88.953826][ T4354] BTRFS info (device loop0): enabling auto defrag [ 88.960767][ T4354] BTRFS info (device loop0): turning on sync discard [ 88.983534][ T4354] BTRFS info (device loop0): force clearing of disk cache [ 88.991187][ T4354] BTRFS info (device loop0): using default commit interval 30s [ 89.014129][ T4354] BTRFS info (device loop0): max_inline at 0 [ 89.020545][ T4354] BTRFS info (device loop0): disabling free space tree [ 89.043503][ T4354] BTRFS info (device loop0): has skinny extents [ 89.144900][ T4354] BTRFS info (device loop0): enabling ssd optimizations [ 89.157491][ T4354] BTRFS info (device loop0): clearing free space tree [ 89.170270][ T4354] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 89.183503][ T4354] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 89.242536][ T4354] [ 89.245182][ T4354] ====================================================== [ 89.253426][ T4354] WARNING: possible circular locking dependency detected [ 89.260972][ T4354] syzkaller #0 Not tainted [ 89.267165][ T4354] ------------------------------------------------------ [ 89.274619][ T4354] syz.0.17/4354 is trying to acquire lock: [ 89.280444][ T4354] ffff88805bde8610 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lookup_slow+0x46/0x70 [ 89.290295][ T4354] [ 89.290295][ T4354] but task is already holding lock: [ 89.297711][ T4354] ffff88805cef50e0 (&fs_devs->device_list_mutex){+.+.}-{3:3}, at: btrfs_free_stale_devices+0x186/0xa60 [ 89.308892][ T4354] [ 89.308892][ T4354] which lock already depends on the new lock. [ 89.308892][ T4354] [ 89.319748][ T4354] [ 89.319748][ T4354] the existing dependency chain (in reverse order) is: [ 89.328983][ T4354] [ 89.328983][ T4354] -> #3 (&fs_devs->device_list_mutex){+.+.}-{3:3}: [ 89.338995][ T4354] __mutex_lock_common+0x1eb/0x2390 [ 89.347358][ T4354] mutex_lock_nested+0x17/0x20 [ 89.354113][ T4354] btrfs_run_dev_stats+0xdf/0xdf0 [ 89.360400][ T4354] commit_cowonly_roots+0x17e/0x9c0 [ 89.366361][ T4354] btrfs_commit_transaction+0x1229/0x3440 [ 89.373782][ T4354] btrfs_clear_free_space_tree+0x786/0xbf0 [ 89.380307][ T4354] btrfs_start_pre_rw_mount+0x287/0x630 [ 89.387063][ T4354] open_ctree+0x2878/0x3250 [ 89.392515][ T4354] btrfs_fill_super+0x1c2/0x2e0 [ 89.397990][ T4354] btrfs_mount_root+0x857/0x8c0 [ 89.403640][ T4354] legacy_get_tree+0xe6/0x180 [ 89.409153][ T4354] vfs_get_tree+0x88/0x270 [ 89.414879][ T4354] vfs_kern_mount+0xba/0x150 [ 89.420108][ T4354] btrfs_mount+0x2d7/0xa50 [ 89.426146][ T4354] legacy_get_tree+0xe6/0x180 [ 89.432564][ T4354] vfs_get_tree+0x88/0x270 [ 89.438535][ T4354] do_new_mount+0x24a/0xa40 [ 89.445148][ T4354] __se_sys_mount+0x2d6/0x3c0 [ 89.451863][ T4354] do_syscall_64+0x4c/0xa0 [ 89.458170][ T4354] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 89.466129][ T4354] [ 89.466129][ T4354] -> #2 (&fs_info->tree_log_mutex){+.+.}-{3:3}: [ 89.474883][ T4354] lock_release+0x31a/0x870 [ 89.479932][ T4354] __mutex_unlock_slowpath+0xb3/0x6a0 [ 89.486056][ T4354] btrfs_commit_transaction+0x1c11/0x3440 [ 89.492748][ T4354] btrfs_clear_free_space_tree+0x786/0xbf0 [ 89.499808][ T4354] btrfs_start_pre_rw_mount+0x287/0x630 [ 89.507329][ T4354] open_ctree+0x2878/0x3250 [ 89.512546][ T4354] btrfs_fill_super+0x1c2/0x2e0 [ 89.518058][ T4354] btrfs_mount_root+0x857/0x8c0 [ 89.523444][ T4354] legacy_get_tree+0xe6/0x180 [ 89.528752][ T4354] vfs_get_tree+0x88/0x270 [ 89.533749][ T4354] vfs_kern_mount+0xba/0x150 [ 89.538888][ T4354] btrfs_mount+0x2d7/0xa50 [ 89.543939][ T4354] legacy_get_tree+0xe6/0x180 [ 89.549601][ T4354] vfs_get_tree+0x88/0x270 [ 89.554660][ T4354] do_new_mount+0x24a/0xa40 [ 89.560115][ T4354] __se_sys_mount+0x2d6/0x3c0 [ 89.566180][ T4354] do_syscall_64+0x4c/0xa0 [ 89.571712][ T4354] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 89.579784][ T4354] [ 89.579784][ T4354] -> #1 (sb_internal#2){.+.+}-{0:0}: [ 89.587729][ T4354] start_transaction+0x5bc/0x1130 [ 89.593635][ T4354] btrfs_create+0x103/0x5b0 [ 89.598890][ T4354] path_openat+0x11e1/0x2f30 [ 89.604259][ T4354] do_filp_open+0x1b3/0x3e0 [ 89.610053][ T4354] do_sys_openat2+0x142/0x4a0 [ 89.616088][ T4354] __x64_sys_openat+0x135/0x160 [ 89.621784][ T4354] do_syscall_64+0x4c/0xa0 [ 89.626858][ T4354] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 89.633430][ T4354] [ 89.633430][ T4354] -> #0 (&type->i_mutex_dir_key#8){++++}-{3:3}: [ 89.642327][ T4354] __lock_acquire+0x2c33/0x7c60 [ 89.648506][ T4354] lock_acquire+0x197/0x3f0 [ 89.654242][ T4354] down_read+0x44/0x2e0 [ 89.659213][ T4354] lookup_slow+0x46/0x70 [ 89.664080][ T4354] walk_component+0x319/0x460 [ 89.669381][ T4354] path_lookupat+0x169/0x440 [ 89.674669][ T4354] filename_lookup+0x1e2/0x4f0 [ 89.680516][ T4354] kern_path+0x37/0x190 [ 89.685869][ T4354] lookup_bdev+0xbd/0x270 [ 89.691785][ T4354] btrfs_free_stale_devices+0x6db/0xa60 [ 89.698092][ T4354] btrfs_forget_devices+0x52/0x80 [ 89.704262][ T4354] btrfs_control_ioctl+0x104/0x220 [ 89.710497][ T4354] __se_sys_ioctl+0xfa/0x170 [ 89.716267][ T4354] do_syscall_64+0x4c/0xa0 [ 89.722470][ T4354] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 89.730067][ T4354] [ 89.730067][ T4354] other info that might help us debug this: [ 89.730067][ T4354] [ 89.742086][ T4354] Chain exists of: [ 89.742086][ T4354] &type->i_mutex_dir_key#8 --> &fs_info->tree_log_mutex --> &fs_devs->device_list_mutex [ 89.742086][ T4354] [ 89.762700][ T4354] Possible unsafe locking scenario: [ 89.762700][ T4354] [ 89.771845][ T4354] CPU0 CPU1 [ 89.778716][ T4354] ---- ---- [ 89.785251][ T4354] lock(&fs_devs->device_list_mutex); [ 89.791254][ T4354] lock(&fs_info->tree_log_mutex); [ 89.799957][ T4354] lock(&fs_devs->device_list_mutex); [ 89.810278][ T4354] lock(&type->i_mutex_dir_key#8); [ 89.816066][ T4354] [ 89.816066][ T4354] *** DEADLOCK *** [ 89.816066][ T4354] [ 89.827558][ T4354] 2 locks held by syz.0.17/4354: [ 89.833042][ T4354] #0: ffffffff8c606608 (uuid_mutex){+.+.}-{3:3}, at: btrfs_forget_devices+0x1a/0x80 [ 89.845639][ T4354] #1: ffff88805cef50e0 (&fs_devs->device_list_mutex){+.+.}-{3:3}, at: btrfs_free_stale_devices+0x186/0xa60 [ 89.858078][ T4354] [ 89.858078][ T4354] stack backtrace: [ 89.864379][ T4354] CPU: 0 PID: 4354 Comm: syz.0.17 Not tainted syzkaller #0 [ 89.873033][ T4354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 89.885951][ T4354] Call Trace: [ 89.889461][ T4354] [ 89.892958][ T4354] dump_stack_lvl+0x168/0x230 [ 89.899046][ T4354] ? load_image+0x3b0/0x3b0 [ 89.904546][ T4354] ? show_regs_print_info+0x20/0x20 [ 89.911097][ T4354] ? print_circular_bug+0x12b/0x1a0 [ 89.916926][ T4354] check_noncircular+0x274/0x310 [ 89.922674][ T4354] ? add_chain_block+0x940/0x940 [ 89.928245][ T4354] ? lockdep_lock+0xdc/0x1e0 [ 89.932961][ T4354] ? mark_lock+0x286/0x320 [ 89.937857][ T4354] __lock_acquire+0x2c33/0x7c60 [ 89.943663][ T4354] ? rcu_lock_release+0x5/0x20 [ 89.949895][ T4354] ? verify_lock_unused+0x140/0x140 [ 89.956318][ T4354] ? rcu_lock_release+0x5/0x20 [ 89.961736][ T4354] lock_acquire+0x197/0x3f0 [ 89.967135][ T4354] ? lookup_slow+0x46/0x70 [ 89.972782][ T4354] ? __might_sleep+0xf0/0xf0 [ 89.978211][ T4354] ? read_lock_is_recursive+0x10/0x10 [ 89.984214][ T4354] ? lookup_fast+0x2fa/0x710 [ 89.989555][ T4354] down_read+0x44/0x2e0 [ 89.994010][ T4354] ? lookup_slow+0x46/0x70 [ 89.999361][ T4354] lookup_slow+0x46/0x70 [ 90.005346][ T4354] walk_component+0x319/0x460 [ 90.010646][ T4354] path_lookupat+0x169/0x440 [ 90.016308][ T4354] filename_lookup+0x1e2/0x4f0 [ 90.022143][ T4354] ? hashlen_string+0x110/0x110 [ 90.027666][ T4354] ? getname_kernel+0x56/0x2e0 [ 90.033229][ T4354] ? kmem_cache_alloc+0x133/0x290 [ 90.039091][ T4354] ? getname_kernel+0x1fc/0x2e0 [ 90.044833][ T4354] kern_path+0x37/0x190 [ 90.049737][ T4354] lookup_bdev+0xbd/0x270 [ 90.054576][ T4354] ? slab_free_freelist_hook+0xea/0x170 [ 90.061421][ T4354] ? blkdev_get_by_path+0x2d0/0x2d0 [ 90.066853][ T4354] ? kfree+0xef/0x2a0 [ 90.071154][ T4354] btrfs_free_stale_devices+0x6db/0xa60 [ 90.076963][ T4354] ? btrfs_forget_devices+0x80/0x80 [ 90.083003][ T4354] ? _copy_from_user+0xe1/0x170 [ 90.088394][ T4354] ? copy_user_enhanced_fast_string+0xe/0x40 [ 90.094668][ T4354] btrfs_forget_devices+0x52/0x80 [ 90.100097][ T4354] btrfs_control_ioctl+0x104/0x220 [ 90.105584][ T4354] ? trace_raw_output_btrfs__space_info_update+0x130/0x130 [ 90.113321][ T4354] __se_sys_ioctl+0xfa/0x170 [ 90.119027][ T4354] do_syscall_64+0x4c/0xa0 [ 90.123822][ T4354] ? clear_bhb_loop+0x30/0x80 [ 90.128777][ T4354] ? clear_bhb_loop+0x30/0x80 [ 90.134451][ T4354] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 90.141075][ T4354] RIP: 0033:0x7fc86d179749 [ 90.146742][ T4354] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 [ 90.170555][ T4354] RSP: 002b:00007ffe9a288268 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 90.181101][ T4354] RAX: ffffffffffffffda RBX: 00007fc86d3cffa0 RCX: 00007fc86d179749 [ 90.192761][ T4354] RDX: 0000200000000180 RSI: 0000000050009405 RDI: 0000000000000004 [ 90.204715][ T4354] RBP: 00007fc86d1fdf91 R08: 0000000000000000 R09: 0000000000000000 [ 90.213960][ T4354] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 90.223197][ T4354] R13: 00007fc86d3cffa0 R14: 00007fc86d3cffa0 R15: 0000000000000003 [ 90.233467][ T4354] SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor)