Warning: Permanently added '10.128.1.49' (ED25519) to the list of known hosts. 2026/03/01 22:01:39 parsed 1 programs syzkaller login: [ 73.785662][ T4272] cgroup: Unknown subsys name 'net' [ 73.884326][ T4272] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 75.451531][ T4272] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 78.521331][ T1184] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.533521][ T1184] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.550716][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 78.569402][ T46] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.577386][ T46] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.585794][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 79.715336][ T4346] chnl_net:caif_netlink_parms(): no params data found [ 79.767013][ T4346] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.774820][ T4346] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.782811][ T4346] device bridge_slave_0 entered promiscuous mode [ 79.822547][ T4346] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.829868][ T4346] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.837640][ T4346] device bridge_slave_1 entered promiscuous mode [ 79.871273][ T4346] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 79.905074][ T4346] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 79.927284][ T4346] team0: Port device team_slave_0 added [ 79.941960][ T4346] team0: Port device team_slave_1 added [ 79.968803][ T4346] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 79.975945][ T4346] 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. [ 80.002268][ T4346] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 80.014772][ T4346] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 80.021925][ T4346] 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. [ 80.048314][ T4346] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 80.084443][ T4346] device hsr_slave_0 entered promiscuous mode [ 80.091899][ T4346] device hsr_slave_1 entered promiscuous mode [ 80.234358][ T4346] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 80.244754][ T4346] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 80.254409][ T4346] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 80.264515][ T4346] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 80.332472][ T4346] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.339731][ T4346] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.347577][ T4346] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.354738][ T4346] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.393446][ T4346] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.407425][ T1184] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 80.417301][ T1184] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.426706][ T1184] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.435895][ T1184] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 80.449985][ T4346] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.468418][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 80.477260][ T46] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.484406][ T46] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.495819][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 80.505234][ T46] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.513121][ T46] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.543602][ T1184] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 80.552294][ T1184] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 80.565811][ T1184] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 80.586011][ T1184] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 80.597746][ T1184] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 80.610078][ T4346] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 80.790855][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 80.798478][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 80.812654][ T4346] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 80.828488][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 80.838355][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 80.860493][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 80.870250][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 80.879234][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 80.887145][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 80.904759][ T4346] device veth0_vlan entered promiscuous mode [ 80.915691][ T4346] device veth1_vlan entered promiscuous mode [ 80.934634][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 80.945026][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 80.954386][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 80.963961][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 80.983207][ T4346] device veth0_macvtap entered promiscuous mode [ 80.992712][ T4346] device veth1_macvtap entered promiscuous mode [ 81.009675][ T4346] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 81.017277][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 81.026813][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 81.035252][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 81.044346][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 81.057453][ T4346] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 81.068715][ T4346] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.078033][ T4346] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.089288][ T4346] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.099580][ T4346] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.115207][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 81.124091][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 81.292403][ T4365] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 81.294006][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.311682][ T4365] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 81.322861][ T4365] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 81.331717][ T4365] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 81.339755][ T4365] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 81.346994][ T4365] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 2026/03/01 22:01:49 executed programs: 0 [ 81.721639][ T48] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 81.730856][ T48] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 81.738436][ T48] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 81.747637][ T48] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 81.756487][ T48] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 81.763976][ T48] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 81.801006][ T7] cfg80211: failed to load regulatory.db [ 81.952902][ T4372] chnl_net:caif_netlink_parms(): no params data found [ 82.030733][ T4372] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.037940][ T4372] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.046685][ T4372] device bridge_slave_0 entered promiscuous mode [ 82.056596][ T4372] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.064073][ T4372] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.072653][ T4372] device bridge_slave_1 entered promiscuous mode [ 82.100607][ T4372] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 82.114158][ T4372] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 82.146273][ T4372] team0: Port device team_slave_0 added [ 82.154584][ T4372] team0: Port device team_slave_1 added [ 82.177839][ T4372] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 82.185564][ T4372] 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. [ 82.212943][ T4372] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 82.229629][ T4372] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 82.236618][ T4372] 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. [ 82.265295][ T4372] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 82.310454][ T4372] device hsr_slave_0 entered promiscuous mode [ 82.317977][ T4372] device hsr_slave_1 entered promiscuous mode [ 82.325300][ T4372] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 82.333575][ T4372] Cannot create hsr debugfs directory [ 83.650191][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 83.809588][ T4365] Bluetooth: hci0: command 0x0409 tx timeout [ 85.879196][ T48] Bluetooth: hci0: command 0x041b tx timeout [ 86.028540][ T9] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 86.100959][ T9] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 86.971719][ T9] device hsr_slave_0 left promiscuous mode [ 86.978647][ T9] device hsr_slave_1 left promiscuous mode [ 86.985830][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 86.996533][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 87.020098][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 87.027570][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 87.038318][ T9] device bridge_slave_1 left promiscuous mode [ 87.045670][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 87.061343][ T9] device bridge_slave_0 left promiscuous mode [ 87.067648][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 87.096932][ T9] device veth1_macvtap left promiscuous mode [ 87.103731][ T9] device veth0_macvtap left promiscuous mode [ 87.112712][ T9] device veth1_vlan left promiscuous mode [ 87.118785][ T9] device veth0_vlan left promiscuous mode [ 87.474887][ T9] team0 (unregistering): Port device team_slave_1 removed [ 87.504321][ T9] team0 (unregistering): Port device team_slave_0 removed [ 87.532887][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 87.564588][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 87.756031][ T9] bond0 (unregistering): Released all slaves [ 87.831650][ T4372] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 87.842270][ T4372] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 87.851512][ T4372] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 87.861100][ T4372] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 87.932178][ T4372] 8021q: adding VLAN 0 to HW filter on device bond0 [ 87.952416][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 87.960448][ T4365] Bluetooth: hci0: command 0x040f tx timeout [ 87.968149][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 87.978494][ T4372] 8021q: adding VLAN 0 to HW filter on device team0 [ 87.988259][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 88.000544][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 88.009154][ T11] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.016259][ T11] bridge0: port 1(bridge_slave_0) entered forwarding state [ 88.024177][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 88.050502][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 88.061417][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 88.070356][ T4379] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.077502][ T4379] bridge0: port 2(bridge_slave_1) entered forwarding state [ 88.087798][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 88.100380][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 88.117420][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 88.127213][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 88.135923][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 88.154001][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 88.164362][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 88.185036][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 88.194235][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 88.203485][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 88.212951][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 88.224040][ T4372] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 88.412776][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 88.420756][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 88.435872][ T4372] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 88.458709][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 88.467559][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 88.490450][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 88.498736][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 88.507653][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 88.515961][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 88.531199][ T4372] device veth0_vlan entered promiscuous mode [ 88.542545][ T4372] device veth1_vlan entered promiscuous mode [ 88.560642][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 88.568797][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 88.577672][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 88.586530][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 88.604149][ T4372] device veth0_macvtap entered promiscuous mode [ 88.613448][ T4372] device veth1_macvtap entered promiscuous mode [ 88.628560][ T4372] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 88.636587][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 88.646074][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 88.654818][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 88.664598][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 88.682115][ T4372] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 88.691444][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 88.701262][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 88.710818][ T4372] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.719919][ T4372] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.728730][ T4372] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.737745][ T4372] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.802242][ T11] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 88.811701][ T11] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 88.821090][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 88.843490][ T4379] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 88.852286][ T4379] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 88.860802][ T4379] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 88.924023][ T4415] loop0: detected capacity change from 0 to 1024 [ 88.939755][ T4415] ======================================================= [ 88.939755][ T4415] WARNING: The mand mount option has been deprecated and [ 88.939755][ T4415] and is ignored by this kernel. Remove the mand [ 88.939755][ T4415] option from the mount to silence this warning. [ 88.939755][ T4415] ======================================================= [ 89.093496][ T11] hfsplus: b-tree write err: -5, ino 3 [ 89.121574][ T11] [ 89.123965][ T11] ============================================ [ 89.130149][ T11] WARNING: possible recursive locking detected [ 89.136305][ T11] syzkaller #0 Not tainted [ 89.140711][ T11] -------------------------------------------- [ 89.146865][ T11] kworker/u4:1/11 is trying to acquire lock: [ 89.152846][ T11] ffff88801fe5c0b0 (&tree->tree_lock/1){+.+.}-{3:3}, at: hfsplus_find_init+0x150/0x1c0 [ 89.162671][ T11] [ 89.162671][ T11] but task is already holding lock: [ 89.170108][ T11] ffff88801fe5c0b0 (&tree->tree_lock/1){+.+.}-{3:3}, at: hfsplus_find_init+0x150/0x1c0 [ 89.179853][ T11] [ 89.179853][ T11] other info that might help us debug this: [ 89.187923][ T11] Possible unsafe locking scenario: [ 89.187923][ T11] [ 89.195536][ T11] CPU0 [ 89.198819][ T11] ---- [ 89.202095][ T11] lock(&tree->tree_lock/1); [ 89.206767][ T11] lock(&tree->tree_lock/1); [ 89.211440][ T11] [ 89.211440][ T11] *** DEADLOCK *** [ 89.211440][ T11] [ 89.219570][ T11] May be due to missing lock nesting notation [ 89.219570][ T11] [ 89.228046][ T11] 5 locks held by kworker/u4:1/11: [ 89.233149][ T11] #0: ffff88814425d938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x7b0/0x1160 [ 89.244074][ T11] #1: ffffc90000107d00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7b0/0x1160 [ 89.255911][ T11] #2: ffff888075512988 (&hip->extents_lock){+.+.}-{3:3}, at: hfsplus_ext_write_extent+0x8d/0x220 [ 89.266533][ T11] #3: ffff88801fe5c0b0 (&tree->tree_lock/1){+.+.}-{3:3}, at: hfsplus_find_init+0x150/0x1c0 [ 89.276719][ T11] #4: ffff888075510108 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_extend+0x1cd/0x1a50 [ 89.288210][ T11] [ 89.288210][ T11] stack backtrace: [ 89.294217][ T11] CPU: 1 PID: 11 Comm: kworker/u4:1 Not tainted syzkaller #0 [ 89.301655][ T11] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 89.311717][ T11] Workqueue: writeback wb_workfn (flush-7:0) [ 89.317707][ T11] Call Trace: [ 89.320979][ T11] [ 89.323905][ T11] dump_stack_lvl+0x188/0x24e [ 89.328589][ T11] ? show_regs_print_info+0x12/0x12 [ 89.333881][ T11] ? load_image+0x400/0x400 [ 89.338392][ T11] __lock_acquire+0x123e/0x7d10 [ 89.343260][ T11] ? mark_lock+0x94/0x320 [ 89.347605][ T11] ? _raw_spin_unlock_irqrestore+0x82/0x120 [ 89.353510][ T11] ? verify_lock_unused+0x140/0x140 [ 89.358730][ T11] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 89.364612][ T11] ? _raw_spin_unlock+0x40/0x40 [ 89.369456][ T11] ? stack_trace_save+0xa6/0xf0 [ 89.374306][ T11] ? __stack_depot_save+0x421/0x460 [ 89.379513][ T11] lock_acquire+0x1bb/0x4a0 [ 89.384055][ T11] ? hfsplus_find_init+0x150/0x1c0 [ 89.389178][ T11] ? hfsplus_file_extend+0x46a/0x1a50 [ 89.394725][ T11] ? hfsplus_bmap_reserve+0x11e/0x4f0 [ 89.400276][ T11] ? wb_writeback+0x482/0xd50 [ 89.405100][ T11] ? __might_sleep+0xd0/0xd0 [ 89.409784][ T11] ? kthread+0x29d/0x330 [ 89.414139][ T11] ? read_lock_is_recursive+0x10/0x10 [ 89.419736][ T11] __mutex_lock+0x12d/0xaf0 [ 89.424276][ T11] ? hfsplus_find_init+0x150/0x1c0 [ 89.429443][ T11] ? hfsplus_find_init+0x150/0x1c0 [ 89.434766][ T11] ? mutex_lock_nested+0x10/0x10 [ 89.439758][ T11] ? __kmem_cache_alloc_node+0x140/0x260 [ 89.445432][ T11] ? hfsplus_find_init+0x85/0x1c0 [ 89.450495][ T11] ? hfsplus_find_init+0x85/0x1c0 [ 89.455553][ T11] ? __kmalloc+0xe1/0x240 [ 89.459930][ T11] ? rcu_is_watching+0x11/0xa0 [ 89.464736][ T11] hfsplus_find_init+0x150/0x1c0 [ 89.469708][ T11] hfsplus_file_extend+0x46a/0x1a50 [ 89.475108][ T11] ? hfsplus_get_block+0x15a0/0x15a0 [ 89.480422][ T11] ? trace_raw_output_contention_end+0xd0/0xd0 [ 89.486701][ T11] ? rcu_is_watching+0x11/0xa0 [ 89.491547][ T11] ? __mutex_lock+0x1ab/0xaf0 [ 89.496270][ T11] ? memset+0x1e/0x40 [ 89.500285][ T11] ? hfsplus_brec_find+0x19a/0x510 [ 89.505436][ T11] hfsplus_bmap_reserve+0x11e/0x4f0 [ 89.510670][ T11] __hfsplus_ext_write_extent+0x28d/0x5b0 [ 89.516457][ T11] hfsplus_ext_write_extent+0x194/0x220 [ 89.522035][ T11] ? hfsplus_ext_cmp_key+0x300/0x300 [ 89.527359][ T11] ? __lock_acquire+0x7d10/0x7d10 [ 89.532419][ T11] ? do_raw_spin_lock+0x128/0x2f0 [ 89.537466][ T11] hfsplus_write_inode+0x1e/0x5b0 [ 89.542532][ T11] __writeback_single_inode+0x75b/0x1160 [ 89.548193][ T11] writeback_sb_inodes+0xb30/0x1850 [ 89.553444][ T11] ? queue_io+0x5a0/0x5a0 [ 89.557809][ T11] ? rcu_is_watching+0x11/0xa0 [ 89.562598][ T11] wb_writeback+0x482/0xd50 [ 89.567136][ T11] ? percpu_ref_tryget+0x250/0x250 [ 89.572274][ T11] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 89.578407][ T11] ? _raw_spin_unlock_irq+0x1f/0x40 [ 89.583657][ T11] wb_workfn+0x423/0xee0 [ 89.588118][ T11] ? inode_wait_for_writeback+0x220/0x220 [ 89.593887][ T11] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 89.600080][ T11] ? read_lock_is_recursive+0x10/0x10 [ 89.605488][ T11] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 89.611405][ T11] ? _raw_spin_unlock+0x40/0x40 [ 89.616282][ T11] ? _raw_spin_unlock_irq+0x1f/0x40 [ 89.621505][ T11] ? process_one_work+0x7b0/0x1160 [ 89.626728][ T11] process_one_work+0x8a2/0x1160 [ 89.631791][ T11] ? worker_detach_from_pool+0x240/0x240 [ 89.637458][ T11] ? _raw_spin_lock_irq+0xb7/0xf0 [ 89.642506][ T11] ? _raw_spin_lock_irqsave+0x100/0x100 [ 89.648078][ T11] ? kthread_data+0x4b/0xc0 [ 89.653050][ T11] worker_thread+0xaa2/0x1270 [ 89.657753][ T11] kthread+0x29d/0x330 [ 89.661824][ T11] ? worker_clr_flags+0x1a0/0x1a0 [ 89.667029][ T11] ? kthread_blkcg+0xd0/0xd0 [ 89.671619][ T11] ret_from_fork+0x1f/0x30 [ 89.676067][ T11]