no interfaces have a carrier [ 49.381065][ T3933] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.390557][ T3933] eql: remember to turn off Van-Jacobson compression on your slave devices Starting crond: OK Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.150' (ED25519) to the list of known hosts. 2025/09/13 08:47:05 parsed 1 programs syzkaller login: [ 79.540076][ T4273] cgroup: Unknown subsys name 'net' [ 79.704711][ T4273] cgroup: Unknown subsys name 'rlimit' [ 81.270009][ T4273] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 83.090415][ T4291] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 83.098814][ T4291] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 83.106440][ T4291] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 83.115194][ T4291] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 83.122886][ T4291] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 83.130715][ T4291] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 83.346711][ T11] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.361415][ T11] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.371732][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 83.385959][ T46] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.394833][ T46] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.405507][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 84.920072][ T4327] chnl_net:caif_netlink_parms(): no params data found [ 84.984287][ T4327] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.992579][ T4327] bridge0: port 1(bridge_slave_0) entered disabled state [ 85.000876][ T4327] device bridge_slave_0 entered promiscuous mode [ 85.011074][ T4327] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.019025][ T4327] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.026918][ T4327] device bridge_slave_1 entered promiscuous mode [ 85.056551][ T4327] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 85.071823][ T4327] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 85.096382][ T4327] team0: Port device team_slave_0 added [ 85.105475][ T4327] team0: Port device team_slave_1 added [ 85.131152][ T4327] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 85.138238][ T4327] 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. [ 85.164397][ T4327] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 85.178160][ T4327] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 85.185179][ T4327] 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. [ 85.211616][ T4327] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 85.276102][ T4327] device hsr_slave_0 entered promiscuous mode [ 85.284169][ T4327] device hsr_slave_1 entered promiscuous mode [ 85.387939][ T4327] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 85.399165][ T4327] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 85.408530][ T4327] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 85.417602][ T4327] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 85.445976][ T4327] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.453332][ T4327] bridge0: port 2(bridge_slave_1) entered forwarding state [ 85.461431][ T4327] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.468633][ T4327] bridge0: port 1(bridge_slave_0) entered forwarding state [ 85.521213][ T4327] 8021q: adding VLAN 0 to HW filter on device bond0 [ 85.547486][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 85.557312][ T32] bridge0: port 1(bridge_slave_0) entered disabled state [ 85.566255][ T32] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.598705][ T4327] 8021q: adding VLAN 0 to HW filter on device team0 [ 85.613106][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 85.621683][ T46] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.628876][ T46] bridge0: port 1(bridge_slave_0) entered forwarding state [ 85.659164][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 85.667985][ T46] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.675345][ T46] bridge0: port 2(bridge_slave_1) entered forwarding state [ 85.689250][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 85.699475][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 85.723572][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 85.734557][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 85.744426][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 85.770378][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 85.779209][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 85.792104][ T4327] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 85.803706][ T4327] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 85.814349][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 85.823157][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 86.041239][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 86.049222][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 86.074971][ T4327] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 86.099019][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 86.109391][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 86.133669][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 86.142739][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 86.152211][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 86.162374][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 86.172912][ T4327] device veth0_vlan entered promiscuous mode [ 86.187094][ T4327] device veth1_vlan entered promiscuous mode [ 86.220773][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 86.230712][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 86.239752][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 86.248829][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 86.259525][ T4327] device veth0_macvtap entered promiscuous mode [ 86.272120][ T4327] device veth1_macvtap entered promiscuous mode [ 86.292920][ T4327] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 86.302305][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 86.310774][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 86.319330][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 86.328898][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 86.350891][ T4327] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 86.358619][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 86.367327][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 86.385895][ T4327] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.395181][ T4327] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.404340][ T4327] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.413361][ T4327] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.540069][ T56] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 86.769343][ T14] cfg80211: failed to load regulatory.db 2025/09/13 08:47:15 executed programs: 0 [ 87.908609][ T48] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 87.916870][ T48] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 87.925515][ T48] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 87.934139][ T48] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 87.942356][ T48] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 87.949945][ T48] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 88.095816][ T4380] chnl_net:caif_netlink_parms(): no params data found [ 88.146991][ T4380] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.154288][ T4380] bridge0: port 1(bridge_slave_0) entered disabled state [ 88.162411][ T4380] device bridge_slave_0 entered promiscuous mode [ 88.170930][ T4380] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.178388][ T4380] bridge0: port 2(bridge_slave_1) entered disabled state [ 88.186292][ T4380] device bridge_slave_1 entered promiscuous mode [ 88.211172][ T4380] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 88.222581][ T4380] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 88.249254][ T4380] team0: Port device team_slave_0 added [ 88.259159][ T4380] team0: Port device team_slave_1 added [ 88.279343][ T4380] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 88.286416][ T4380] 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. [ 88.312647][ T4380] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 88.325786][ T4380] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 88.332885][ T4380] 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. [ 88.359020][ T4380] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 88.394648][ T4380] device hsr_slave_0 entered promiscuous mode [ 88.401828][ T4380] device hsr_slave_1 entered promiscuous mode [ 88.408861][ T4380] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 88.416737][ T4380] Cannot create hsr debugfs directory [ 88.730217][ T56] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 89.979384][ T4291] Bluetooth: hci0: command 0x0409 tx timeout [ 91.048701][ T56] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 91.110730][ T56] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 91.896773][ T56] device hsr_slave_0 left promiscuous mode [ 91.914174][ T56] device hsr_slave_1 left promiscuous mode [ 91.921179][ T56] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 91.929485][ T56] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 91.938773][ T56] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 91.946215][ T56] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 91.954287][ T56] device bridge_slave_1 left promiscuous mode [ 91.961519][ T56] bridge0: port 2(bridge_slave_1) entered disabled state [ 91.974362][ T56] device bridge_slave_0 left promiscuous mode [ 91.981901][ T56] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.010381][ T56] device veth1_macvtap left promiscuous mode [ 92.016817][ T56] device veth0_macvtap left promiscuous mode [ 92.025355][ T56] device veth1_vlan left promiscuous mode [ 92.031533][ T56] device veth0_vlan left promiscuous mode [ 92.048032][ T4291] Bluetooth: hci0: command 0x041b tx timeout [ 92.482436][ T56] team0 (unregistering): Port device team_slave_1 removed [ 92.512431][ T56] team0 (unregistering): Port device team_slave_0 removed [ 92.543404][ T56] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 92.578973][ T56] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 92.855613][ T56] bond0 (unregistering): Released all slaves [ 92.956045][ T4380] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 92.967271][ T4380] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 92.978423][ T4380] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 92.994407][ T4380] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 93.074266][ T4380] 8021q: adding VLAN 0 to HW filter on device bond0 [ 93.087588][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 93.096178][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 93.112425][ T4380] 8021q: adding VLAN 0 to HW filter on device team0 [ 93.128781][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 93.138603][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 93.147063][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.154211][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 93.162447][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 93.190466][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 93.200258][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 93.209708][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.216816][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 93.224662][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 93.233779][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 93.256555][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 93.265588][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 93.275613][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 93.284701][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 93.293591][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 93.302089][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 93.310773][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 93.322924][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 93.331719][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 93.350341][ T4380] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 93.585154][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 93.593058][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 93.610213][ T4380] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 93.651915][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 93.661892][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 93.681805][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 93.691139][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 93.701436][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 93.710116][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 93.720144][ T4380] device veth0_vlan entered promiscuous mode [ 93.731604][ T4380] device veth1_vlan entered promiscuous mode [ 93.751643][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 93.761324][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 93.770317][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 93.779442][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 93.790308][ T4380] device veth0_macvtap entered promiscuous mode [ 93.800743][ T4380] device veth1_macvtap entered promiscuous mode [ 93.816637][ T4380] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 93.838322][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 93.846480][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 93.855010][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 93.863815][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 93.875403][ T4380] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 93.896923][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 93.905860][ T32] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 93.917264][ T4380] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 93.927289][ T4380] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 93.936244][ T4380] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 93.945798][ T4380] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.036471][ T46] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.055122][ T46] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.065150][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 94.093943][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 94.102144][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 94.114067][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 94.128568][ T4291] Bluetooth: hci0: command 0x040f tx timeout [ 94.185216][ T4434] loop0: detected capacity change from 0 to 1024 [ 94.232979][ T4434] [ 94.235461][ T4434] ============================================ [ 94.241643][ T4434] WARNING: possible recursive locking detected [ 94.247829][ T4434] syzkaller #0 Not tainted [ 94.252280][ T4434] -------------------------------------------- [ 94.258457][ T4434] syz.0.17/4434 is trying to acquire lock: [ 94.264285][ T4434] ffff888078949548 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_get_block+0x39b/0x1530 [ 94.275259][ T4434] [ 94.275259][ T4434] but task is already holding lock: [ 94.282655][ T4434] ffff8880789487c8 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_extend+0x1b3/0x1950 [ 94.293749][ T4434] [ 94.293749][ T4434] other info that might help us debug this: [ 94.301835][ T4434] Possible unsafe locking scenario: [ 94.301835][ T4434] [ 94.309325][ T4434] CPU0 [ 94.312627][ T4434] ---- [ 94.315931][ T4434] lock(&HFSPLUS_I(inode)->extents_lock); [ 94.322020][ T4434] lock(&HFSPLUS_I(inode)->extents_lock); [ 94.327865][ T4434] [ 94.327865][ T4434] *** DEADLOCK *** [ 94.327865][ T4434] [ 94.336054][ T4434] May be due to missing lock nesting notation [ 94.336054][ T4434] [ 94.344416][ T4434] 5 locks held by syz.0.17/4434: [ 94.349371][ T4434] #0: ffff8880797dc0e0 (&type->s_umount_key#52/1){+.+.}-{3:3}, at: alloc_super+0x1fa/0x930 [ 94.359511][ T4434] #1: ffff888027da4998 (&sbi->vh_mutex){+.+.}-{3:3}, at: hfsplus_fill_super+0x1286/0x1b90 [ 94.369555][ T4434] #2: ffff888078f3a0b0 (&tree->tree_lock){+.+.}-{3:3}, at: hfsplus_find_init+0x150/0x1c0 [ 94.379611][ T4434] #3: ffff8880789487c8 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_extend+0x1b3/0x1950 [ 94.391126][ T4434] #4: ffff888027da48f8 (&sbi->alloc_mutex){+.+.}-{3:3}, at: hfsplus_block_allocate+0x99/0x8e0 [ 94.401592][ T4434] [ 94.401592][ T4434] stack backtrace: [ 94.407504][ T4434] CPU: 0 PID: 4434 Comm: syz.0.17 Not tainted syzkaller #0 [ 94.414705][ T4434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 94.424780][ T4434] Call Trace: [ 94.428072][ T4434] [ 94.431012][ T4434] dump_stack_lvl+0x168/0x22e [ 94.435717][ T4434] ? show_regs_print_info+0x12/0x12 [ 94.440946][ T4434] ? load_image+0x3b0/0x3b0 [ 94.445471][ T4434] __lock_acquire+0x122f/0x7c50 [ 94.450338][ T4434] ? unwind_get_return_address+0x49/0x80 [ 94.456002][ T4434] ? stack_trace_save+0xe0/0xe0 [ 94.460870][ T4434] ? check_noncircular+0x16f/0x310 [ 94.466085][ T4434] ? verify_lock_unused+0x140/0x140 [ 94.471307][ T4434] ? lockdep_unlock+0x133/0x2d0 [ 94.476175][ T4434] ? lockdep_lock+0x1e0/0x1e0 [ 94.480867][ T4434] ? add_lock_to_list+0x191/0x280 [ 94.485913][ T4434] lock_acquire+0x1b4/0x490 [ 94.490515][ T4434] ? hfsplus_get_block+0x39b/0x1530 [ 94.495731][ T4434] ? __might_sleep+0xd0/0xd0 [ 94.500344][ T4434] ? read_lock_is_recursive+0x10/0x10 [ 94.505824][ T4434] ? verify_lock_unused+0x140/0x140 [ 94.511085][ T4434] __mutex_lock+0x120/0xaf0 [ 94.515605][ T4434] ? hfsplus_get_block+0x39b/0x1530 [ 94.520817][ T4434] ? memset+0x1e/0x40 [ 94.524819][ T4434] ? hfsplus_get_block+0x39b/0x1530 [ 94.530025][ T4434] ? mutex_lock_nested+0x10/0x10 [ 94.534992][ T4434] hfsplus_get_block+0x39b/0x1530 [ 94.540039][ T4434] ? alloc_buffer_head+0xd4/0x100 [ 94.545088][ T4434] ? hfsplus_ext_write_extent+0x200/0x200 [ 94.550831][ T4434] ? create_empty_buffers+0x59e/0x7a0 [ 94.556217][ T4434] ? verify_lock_unused+0x140/0x140 [ 94.561432][ T4434] ? do_raw_spin_unlock+0x11d/0x230 [ 94.566739][ T4434] ? create_page_buffers+0x24f/0x4a0 [ 94.572067][ T4434] block_read_full_folio+0x3c9/0xed0 [ 94.577380][ T4434] ? _raw_spin_unlock_irq+0x1f/0x40 [ 94.582605][ T4434] ? hfsplus_ext_write_extent+0x200/0x200 [ 94.588339][ T4434] ? block_is_partially_uptodate+0x5f0/0x5f0 [ 94.594366][ T4434] ? __lock_acquire+0x7c50/0x7c50 [ 94.599421][ T4434] ? folio_put+0xd0/0xd0 [ 94.603681][ T4434] ? filemap_alloc_folio+0xdb/0x460 [ 94.608904][ T4434] filemap_read_folio+0x160/0x760 [ 94.613947][ T4434] ? folio_batch_add_and_move+0x14a/0x250 [ 94.619681][ T4434] ? hfsplus_writepage+0x30/0x30 [ 94.624647][ T4434] ? maybe_unlock_mmap_for_io+0x140/0x140 [ 94.630383][ T4434] ? filemap_add_folio+0x188/0x3c0 [ 94.635510][ T4434] do_read_cache_folio+0x2a0/0x760 [ 94.640638][ T4434] ? hfsplus_writepage+0x30/0x30 [ 94.645594][ T4434] do_read_cache_page+0x32/0x220 [ 94.650634][ T4434] hfsplus_block_allocate+0xfb/0x8e0 [ 94.655932][ T4434] ? hfsplus_file_extend+0x26a/0x1950 [ 94.661340][ T4434] hfsplus_file_extend+0xa8e/0x1950 [ 94.666557][ T4434] ? hfsplus_get_block+0x1530/0x1530 [ 94.671951][ T4434] ? trace_contention_end+0x5f/0x170 [ 94.677422][ T4434] ? __mutex_lock+0x19e/0xaf0 [ 94.682297][ T4434] ? hfsplus_find_init+0x150/0x1c0 [ 94.687419][ T4434] ? mutex_lock_nested+0x10/0x10 [ 94.692376][ T4434] hfsplus_bmap_reserve+0x11e/0x4f0 [ 94.697697][ T4434] hfsplus_create_cat+0x180/0x1020 [ 94.702920][ T4434] ? __mod_timer+0x8ee/0xd20 [ 94.707528][ T4434] ? hfsplus_find_cat+0x500/0x500 [ 94.712582][ T4434] ? do_raw_spin_unlock+0x11d/0x230 [ 94.717803][ T4434] ? _raw_spin_unlock+0x24/0x40 [ 94.722672][ T4434] ? hfsplus_new_inode+0x6a6/0x880 [ 94.727816][ T4434] hfsplus_fill_super+0x12f6/0x1b90 [ 94.733037][ T4434] ? hfsplus_mount+0x40/0x40 [ 94.737665][ T4434] ? snprintf+0xd7/0x120 [ 94.741931][ T4434] ? vscnprintf+0x80/0x80 [ 94.746362][ T4434] ? set_blocksize+0x1d3/0x350 [ 94.751143][ T4434] ? sb_set_blocksize+0xa5/0xe0 [ 94.756019][ T4434] mount_bdev+0x287/0x3c0 [ 94.760363][ T4434] ? hfsplus_mount+0x40/0x40 [ 94.764985][ T4434] legacy_get_tree+0xe6/0x180 [ 94.769672][ T4434] ? hfsplus_mark_mdb_dirty+0x1b0/0x1b0 [ 94.775240][ T4434] vfs_get_tree+0x88/0x270 [ 94.779670][ T4434] do_new_mount+0x24a/0xa40 [ 94.784198][ T4434] __se_sys_mount+0x2d6/0x3c0 [ 94.788907][ T4434] ? __x64_sys_mount+0xc0/0xc0 [ 94.793711][ T4434] ? lockdep_hardirqs_on+0x94/0x140 [ 94.798938][ T4434] ? __x64_sys_mount+0x1c/0xc0 [ 94.803727][ T4434] do_syscall_64+0x4c/0xa0 [ 94.808157][ T4434] ? clear_bhb_loop+0x60/0xb0 [ 94.812852][ T4434] ? clear_bhb_loop+0x60/0xb0 [ 94.817538][ T4434] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 94.823459][ T4434] RIP: 0033:0x7fcb7e59034a [ 94.827901][ T4434] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 94.847536][ T4434] RSP: 002b:00007ffdf9c40918 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 94.855968][ T4434] RAX: ffffffffffffffda RBX: 00007ffdf9c409a0 RCX: 00007fcb7e59034a [ 94.863973][ T4434] RDX: 0000200000000000 RSI: 0000200000000040 RDI: 00007ffdf9c40960 [ 94.871959][ T4434] RBP: 0000200000000000 R08: 00007ffdf9c409a0 R09: 0000000000200008 [ 94.879946][ T4434] R10: 0000000000200008 R11: 0000000000000246 R12: 0000200000000040 [ 94.887929][ T4434] R13: 00007ffdf9c40960 R14: 0000000000000626 R15: 00002000000000c0 [ 94.895919][ T4434]