Warning: Permanently added '10.128.1.205' (ED25519) to the list of known hosts. 2025/12/13 13:14:19 parsed 1 programs [ 72.357155][ T4193] cgroup: Unknown subsys name 'net' [ 72.515942][ T4193] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 74.041874][ T4193] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 75.943739][ T4213] chnl_net:caif_netlink_parms(): no params data found [ 75.988852][ T4213] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.996629][ T4213] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.004713][ T4213] device bridge_slave_0 entered promiscuous mode [ 76.017425][ T4213] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.025207][ T4213] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.032980][ T4213] device bridge_slave_1 entered promiscuous mode [ 76.053484][ T4213] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.067136][ T4213] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.090836][ T4213] team0: Port device team_slave_0 added [ 76.098263][ T4213] team0: Port device team_slave_1 added [ 76.118582][ T4213] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.125837][ T4213] 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. [ 76.152393][ T4213] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.164877][ T4213] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.172048][ T4213] 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. [ 76.198365][ T4213] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.227303][ T4213] device hsr_slave_0 entered promiscuous mode [ 76.234461][ T4213] device hsr_slave_1 entered promiscuous mode [ 76.325938][ T4213] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 76.338353][ T4213] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.349379][ T4213] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.359508][ T4213] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.393211][ T4213] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.400573][ T4213] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.408632][ T4213] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.415862][ T4213] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.504219][ T4213] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.542663][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.563778][ T1440] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.592376][ T1440] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.611052][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 76.703705][ T4213] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.740750][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.760755][ T1440] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.767846][ T1440] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.803648][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.831922][ T1440] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.839023][ T1440] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.870659][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.900352][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.932421][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.941433][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.965512][ T4213] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 76.991162][ T4213] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.011465][ T716] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 77.031961][ T716] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.252369][ T716] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 77.259861][ T716] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 77.282091][ T4213] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.304714][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 77.315177][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 77.335054][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 77.344341][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 77.355784][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 77.363858][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 77.375639][ T4213] device veth0_vlan entered promiscuous mode [ 77.389667][ T4213] device veth1_vlan entered promiscuous mode [ 77.412511][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.421598][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 77.429892][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 77.442275][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 77.454646][ T4213] device veth0_macvtap entered promiscuous mode [ 77.466947][ T4213] device veth1_macvtap entered promiscuous mode [ 77.485154][ T4213] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.493511][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 77.502408][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 77.512259][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 77.521082][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 77.533036][ T4213] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 77.554185][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 77.563260][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 77.576132][ T4213] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.586007][ T4213] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.596357][ T4213] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.605413][ T4213] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.715490][ T4213] syz-executor (4213) used greatest stack depth: 20456 bytes left [ 78.015302][ T154] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.409881][ T1440] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.424905][ T1440] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.435656][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 78.444771][ T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.453543][ T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.463666][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 80.325788][ T154] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.582299][ T1108] cfg80211: failed to load regulatory.db [ 82.365929][ T154] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 82.417269][ T154] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 83.587696][ T154] device hsr_slave_0 left promiscuous mode [ 83.601623][ T154] device hsr_slave_1 left promiscuous mode [ 83.634947][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 83.642947][ T154] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 83.676344][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 83.684181][ T154] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 83.693599][ T154] device bridge_slave_1 left promiscuous mode [ 83.700765][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 83.718533][ T154] device bridge_slave_0 left promiscuous mode [ 83.725120][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 83.754142][ T154] device veth1_macvtap left promiscuous mode [ 83.762414][ T154] device veth0_macvtap left promiscuous mode [ 83.768617][ T154] device veth1_vlan left promiscuous mode [ 83.791864][ T154] device veth0_vlan left promiscuous mode [ 84.028238][ T154] team0 (unregistering): Port device team_slave_1 removed [ 84.041458][ T154] team0 (unregistering): Port device team_slave_0 removed [ 84.053697][ T154] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 84.068007][ T154] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 84.117469][ T154] bond0 (unregistering): Released all slaves 2025/12/13 13:14:34 executed programs: 0 [ 85.165821][ T4356] chnl_net:caif_netlink_parms(): no params data found [ 85.292773][ T4356] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.299874][ T4356] bridge0: port 1(bridge_slave_0) entered disabled state [ 85.323537][ T4356] device bridge_slave_0 entered promiscuous mode [ 85.341091][ T4356] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.359139][ T4356] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.367490][ T4356] device bridge_slave_1 entered promiscuous mode [ 85.419751][ T4356] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 85.433198][ T4356] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 85.485111][ T4356] team0: Port device team_slave_0 added [ 85.502923][ T4356] team0: Port device team_slave_1 added [ 85.563836][ T4356] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 85.580284][ T4356] 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. [ 85.630274][ T4356] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 85.652374][ T4356] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 85.670288][ T4356] 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. [ 85.730303][ T4356] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 85.797103][ T4356] device hsr_slave_0 entered promiscuous mode [ 85.804902][ T4356] device hsr_slave_1 entered promiscuous mode [ 86.480380][ T4356] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 86.617040][ T4356] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 86.649622][ T4356] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 86.669715][ T4356] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 86.791658][ T4356] 8021q: adding VLAN 0 to HW filter on device bond0 [ 86.806011][ T716] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 86.815389][ T716] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 86.827545][ T4356] 8021q: adding VLAN 0 to HW filter on device team0 [ 86.838889][ T716] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 86.849616][ T716] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 86.859781][ T716] bridge0: port 1(bridge_slave_0) entered blocking state [ 86.866912][ T716] bridge0: port 1(bridge_slave_0) entered forwarding state [ 86.878274][ T716] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 86.890581][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 86.899970][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 86.910131][ T1440] bridge0: port 2(bridge_slave_1) entered blocking state [ 86.917379][ T1440] bridge0: port 2(bridge_slave_1) entered forwarding state [ 86.941284][ T4204] Bluetooth: hci0: command 0x0409 tx timeout [ 86.949228][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 86.958276][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 86.969728][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 86.980024][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 86.990660][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 86.999914][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 87.012877][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 87.037733][ T4356] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 87.048981][ T4356] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 87.063332][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 87.071851][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 87.080819][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 87.089225][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 87.097700][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 87.321826][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 87.329486][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 87.342332][ T4356] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 87.364747][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 87.376484][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 87.438048][ T716] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 87.447653][ T716] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 87.460007][ T4356] device veth0_vlan entered promiscuous mode [ 87.473189][ T716] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 87.481725][ T716] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 87.495134][ T4356] device veth1_vlan entered promiscuous mode [ 87.547582][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 87.557076][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 87.567292][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 87.577316][ T1440] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 87.589907][ T4356] device veth0_macvtap entered promiscuous mode [ 87.637837][ T4356] device veth1_macvtap entered promiscuous mode [ 87.657865][ T4356] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 87.669158][ T4356] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 87.680152][ T716] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 87.690019][ T716] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 87.699927][ T716] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 87.710926][ T716] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 87.719816][ T716] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 87.731840][ T716] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 87.749028][ T4356] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.758273][ T4356] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.767731][ T4356] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.778835][ T4356] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 87.880033][ T1440] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 87.895888][ T1440] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 87.946759][ T716] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 87.956312][ T1440] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 87.966374][ T1440] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 87.975986][ T716] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 88.051994][ T4492] loop0: detected capacity change from 0 to 512 [ 88.105928][ T4492] [ 88.108312][ T4492] ====================================================== [ 88.115357][ T4492] WARNING: possible circular locking dependency detected [ 88.122506][ T4492] syzkaller #0 Not tainted [ 88.126931][ T4492] ------------------------------------------------------ [ 88.133963][ T4492] syz.0.17/4492 is trying to acquire lock: [ 88.140309][ T4492] ffff88801dde6bd8 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: ext4_writepages+0x1c0/0x2d20 [ 88.150547][ T4492] [ 88.150547][ T4492] but task is already holding lock: [ 88.158032][ T4492] ffff888069a13c98 (&ei->xattr_sem){++++}-{3:3}, at: __ext4_mark_inode_dirty+0x3e8/0x700 [ 88.167920][ T4492] [ 88.167920][ T4492] which lock already depends on the new lock. [ 88.167920][ T4492] [ 88.178335][ T4492] [ 88.178335][ T4492] the existing dependency chain (in reverse order) is: [ 88.187654][ T4492] [ 88.187654][ T4492] -> #2 (&ei->xattr_sem){++++}-{3:3}: [ 88.195424][ T4492] down_read+0x44/0x2e0 [ 88.200219][ T4492] ext4_setattr+0x71d/0x19e0 [ 88.205356][ T4492] notify_change+0xbcd/0xee0 [ 88.210498][ T4492] chown_common+0x483/0x610 [ 88.215709][ T4492] do_fchownat+0x164/0x270 [ 88.220757][ T4492] __x64_sys_chown+0x7e/0x90 [ 88.225891][ T4492] do_syscall_64+0x4c/0xa0 [ 88.230866][ T4492] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 88.237313][ T4492] [ 88.237313][ T4492] -> #1 (jbd2_handle){++++}-{0:0}: [ 88.244638][ T4492] start_this_handle+0x1338/0x15a0 [ 88.250426][ T4492] jbd2__journal_start+0x2b7/0x5a0 [ 88.256086][ T4492] __ext4_journal_start_sb+0x167/0x360 [ 88.262089][ T4492] ext4_writepages+0xdc2/0x2d20 [ 88.267488][ T4492] do_writepages+0x48d/0x6d0 [ 88.272635][ T4492] __writeback_single_inode+0x153/0xda0 [ 88.278967][ T4492] writeback_sb_inodes+0x9fe/0x1610 [ 88.284714][ T4492] __writeback_inodes_wb+0x12a/0x3f0 [ 88.290541][ T4492] wb_writeback+0x455/0xb90 [ 88.295603][ T4492] wb_workfn+0xaaa/0xe60 [ 88.300484][ T4492] process_one_work+0x863/0x1000 [ 88.305974][ T4492] worker_thread+0xaa8/0x12a0 [ 88.311452][ T4492] kthread+0x436/0x520 [ 88.316060][ T4492] ret_from_fork+0x1f/0x30 [ 88.321020][ T4492] [ 88.321020][ T4492] -> #0 (&sbi->s_writepages_rwsem){.+.+}-{0:0}: [ 88.329568][ T4492] __lock_acquire+0x2c33/0x7c60 [ 88.335281][ T4492] lock_acquire+0x197/0x3f0 [ 88.340509][ T4492] percpu_down_read+0x46/0x1b0 [ 88.345846][ T4492] ext4_writepages+0x1c0/0x2d20 [ 88.351249][ T4492] do_writepages+0x48d/0x6d0 [ 88.356477][ T4492] __writeback_single_inode+0x153/0xda0 [ 88.362843][ T4492] writeback_single_inode+0x221/0x8b0 [ 88.368765][ T4492] write_inode_now+0x217/0x280 [ 88.374318][ T4492] iput+0x5ab/0x8a0 [ 88.378755][ T4492] ext4_xattr_set_entry+0x10ff/0x3d30 [ 88.384670][ T4492] ext4_xattr_block_set+0x4f7/0x2d30 [ 88.390596][ T4492] ext4_expand_extra_isize_ea+0xf4b/0x19a0 [ 88.397039][ T4492] __ext4_expand_extra_isize+0x301/0x3e0 [ 88.403218][ T4492] __ext4_mark_inode_dirty+0x469/0x700 [ 88.409221][ T4492] ext4_evict_inode+0xa81/0x1080 [ 88.414805][ T4492] evict+0x485/0x870 [ 88.419259][ T4492] ext4_orphan_cleanup+0xaa9/0x12e0 [ 88.425003][ T4492] ext4_fill_super+0x92f0/0x9a60 [ 88.430658][ T4492] mount_bdev+0x287/0x3c0 [ 88.435878][ T4492] legacy_get_tree+0xe6/0x180 [ 88.441194][ T4492] vfs_get_tree+0x88/0x270 [ 88.446159][ T4492] do_new_mount+0x24a/0xa40 [ 88.451294][ T4492] __se_sys_mount+0x2d6/0x3c0 [ 88.456517][ T4492] do_syscall_64+0x4c/0xa0 [ 88.461584][ T4492] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 88.468018][ T4492] [ 88.468018][ T4492] other info that might help us debug this: [ 88.468018][ T4492] [ 88.478340][ T4492] Chain exists of: [ 88.478340][ T4492] &sbi->s_writepages_rwsem --> jbd2_handle --> &ei->xattr_sem [ 88.478340][ T4492] [ 88.491930][ T4492] Possible unsafe locking scenario: [ 88.491930][ T4492] [ 88.499531][ T4492] CPU0 CPU1 [ 88.504920][ T4492] ---- ---- [ 88.510301][ T4492] lock(&ei->xattr_sem); [ 88.514655][ T4492] lock(jbd2_handle); [ 88.521269][ T4492] lock(&ei->xattr_sem); [ 88.528145][ T4492] lock(&sbi->s_writepages_rwsem); [ 88.533376][ T4492] [ 88.533376][ T4492] *** DEADLOCK *** [ 88.533376][ T4492] [ 88.541580][ T4492] 3 locks held by syz.0.17/4492: [ 88.546532][ T4492] #0: ffff88801bbce0e0 (&type->s_umount_key#28/1){+.+.}-{3:3}, at: alloc_super+0x201/0x950 [ 88.556689][ T4492] #1: ffff88801bbce650 (sb_internal){.+.+}-{0:0}, at: ext4_evict_inode+0x444/0x1080 [ 88.566214][ T4492] #2: ffff888069a13c98 (&ei->xattr_sem){++++}-{3:3}, at: __ext4_mark_inode_dirty+0x3e8/0x700 [ 88.576520][ T4492] [ 88.576520][ T4492] stack backtrace: [ 88.582424][ T4492] CPU: 1 PID: 4492 Comm: syz.0.17 Not tainted syzkaller #0 [ 88.589734][ T4492] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 88.600602][ T4492] Call Trace: [ 88.603906][ T4492] [ 88.606856][ T4492] dump_stack_lvl+0x168/0x230 [ 88.611561][ T4492] ? load_image+0x3b0/0x3b0 [ 88.616184][ T4492] ? show_regs_print_info+0x20/0x20 [ 88.621407][ T4492] ? print_circular_bug+0x12b/0x1a0 [ 88.626715][ T4492] check_noncircular+0x274/0x310 [ 88.631680][ T4492] ? add_chain_block+0x940/0x940 [ 88.636643][ T4492] ? lockdep_lock+0xdc/0x1e0 [ 88.641260][ T4492] ? lockdep_unlock+0x134/0x2d0 [ 88.646131][ T4492] ? mark_lock+0x94/0x320 [ 88.650490][ T4492] __lock_acquire+0x2c33/0x7c60 [ 88.655378][ T4492] ? verify_lock_unused+0x140/0x140 [ 88.660598][ T4492] ? verify_lock_unused+0x140/0x140 [ 88.665828][ T4492] lock_acquire+0x197/0x3f0 [ 88.670365][ T4492] ? ext4_writepages+0x1c0/0x2d20 [ 88.675515][ T4492] ? check_path+0x40/0x40 [ 88.679879][ T4492] ? __might_sleep+0xf0/0xf0 [ 88.684700][ T4492] ? read_lock_is_recursive+0x10/0x10 [ 88.690105][ T4492] ? mark_lock+0x94/0x320 [ 88.694475][ T4492] ? __lock_acquire+0x13ad/0x7c60 [ 88.699529][ T4492] percpu_down_read+0x46/0x1b0 [ 88.704321][ T4492] ? ext4_writepages+0x1c0/0x2d20 [ 88.709379][ T4492] ext4_writepages+0x1c0/0x2d20 [ 88.714347][ T4492] ? rcu_is_watching+0x11/0xa0 [ 88.719134][ T4492] ? lock_release+0xba/0x870 [ 88.723748][ T4492] ? rcu_lock_release+0x5/0x20 [ 88.728542][ T4492] ? mark_lock+0x94/0x320 [ 88.732900][ T4492] ? verify_lock_unused+0x140/0x140 [ 88.738130][ T4492] ? mark_lock+0x94/0x320 [ 88.742492][ T4492] ? ext4_readpage+0x2e0/0x2e0 [ 88.747368][ T4492] ? __lock_acquire+0x13ad/0x7c60 [ 88.752428][ T4492] ? rcu_lock_release+0x5/0x20 [ 88.757228][ T4492] ? __lock_acquire+0x7c60/0x7c60 [ 88.762277][ T4492] ? do_raw_spin_lock+0x11d/0x280 [ 88.767422][ T4492] ? _raw_spin_lock_irqsave+0x7f/0xf0 [ 88.772886][ T4492] ? do_raw_spin_unlock+0x11d/0x230 [ 88.778111][ T4492] ? ext4_readpage+0x2e0/0x2e0 [ 88.782908][ T4492] do_writepages+0x48d/0x6d0 [ 88.787534][ T4492] ? __writepage+0x130/0x130 [ 88.792179][ T4492] ? writeback_single_inode+0x216/0x8b0 [ 88.797839][ T4492] ? __lock_acquire+0x7c60/0x7c60 [ 88.802897][ T4492] ? do_raw_spin_lock+0x11d/0x280 [ 88.807957][ T4492] __writeback_single_inode+0x153/0xda0 [ 88.813806][ T4492] writeback_single_inode+0x221/0x8b0 [ 88.819311][ T4492] ? write_inode_now+0x280/0x280 [ 88.824410][ T4492] write_inode_now+0x217/0x280 [ 88.829202][ T4492] ? bdi_split_work_to_wbs+0x820/0x820 [ 88.834691][ T4492] ? do_raw_spin_unlock+0x11d/0x230 [ 88.839919][ T4492] iput+0x5ab/0x8a0 [ 88.843766][ T4492] ext4_xattr_set_entry+0x10ff/0x3d30 [ 88.849265][ T4492] ? ext4_xattr_ibody_set+0x330/0x330 [ 88.854671][ T4492] ? rcu_is_watching+0x11/0xa0 [ 88.859454][ T4492] ? kmem_cache_free+0x14c/0x210 [ 88.864490][ T4492] ? mb_cache_entry_delete_or_get+0x1bd/0x1e0 [ 88.870659][ T4492] ext4_xattr_block_set+0x4f7/0x2d30 [ 88.876003][ T4492] ? do_raw_spin_unlock+0x11d/0x230 [ 88.881302][ T4492] ? __ext4_xattr_check_block+0x7d8/0x8d0 [ 88.887014][ T4492] ? ext4_xattr_block_find+0x500/0x500 [ 88.892464][ T4492] ? ext4_xattr_block_find+0x433/0x500 [ 88.897930][ T4492] ext4_expand_extra_isize_ea+0xf4b/0x19a0 [ 88.903740][ T4492] __ext4_expand_extra_isize+0x301/0x3e0 [ 88.909451][ T4492] __ext4_mark_inode_dirty+0x469/0x700 [ 88.914917][ T4492] ext4_evict_inode+0xa81/0x1080 [ 88.919858][ T4492] ? _raw_spin_unlock+0x24/0x40 [ 88.924800][ T4492] ? ext4_inode_is_fast_symlink+0x390/0x390 [ 88.930681][ T4492] ? do_raw_spin_unlock+0x11d/0x230 [ 88.935877][ T4492] ? ext4_inode_is_fast_symlink+0x390/0x390 [ 88.941975][ T4492] evict+0x485/0x870 [ 88.945862][ T4492] ? __lock_acquire+0x7c60/0x7c60 [ 88.950978][ T4492] ? proc_nr_inodes+0x320/0x320 [ 88.955876][ T4492] ? do_raw_spin_unlock+0x11d/0x230 [ 88.961061][ T4492] ? _raw_spin_unlock+0x24/0x40 [ 88.965904][ T4492] ? iput+0x706/0x8a0 [ 88.969872][ T4492] ext4_orphan_cleanup+0xaa9/0x12e0 [ 88.975061][ T4492] ? ext4_orphan_del+0xb90/0xb90 [ 88.979989][ T4492] ? errseq_check_and_advance+0x62/0x120 [ 88.985612][ T4492] ext4_fill_super+0x92f0/0x9a60 [ 88.990544][ T4492] ? ext4_mount+0x40/0x40 [ 88.994862][ T4492] ? set_blocksize+0x1f1/0x370 [ 88.999618][ T4492] ? sb_set_blocksize+0xa5/0xe0 [ 89.004653][ T4492] mount_bdev+0x287/0x3c0 [ 89.008983][ T4492] ? ext4_mount+0x40/0x40 [ 89.013325][ T4492] legacy_get_tree+0xe6/0x180 [ 89.017993][ T4492] ? ext4_errno_to_code+0x160/0x160 [ 89.023184][ T4492] vfs_get_tree+0x88/0x270 [ 89.027604][ T4492] do_new_mount+0x24a/0xa40 [ 89.032100][ T4492] __se_sys_mount+0x2d6/0x3c0 [ 89.036858][ T4492] ? __x64_sys_mount+0xc0/0xc0 [ 89.041633][ T4492] ? lockdep_hardirqs_on+0x94/0x140 [ 89.046856][ T4492] ? __x64_sys_mount+0x1c/0xc0 [ 89.051650][ T4492] do_syscall_64+0x4c/0xa0 [ 89.056082][ T4492] ? clear_bhb_loop+0x30/0x80 [ 89.060752][ T4492] ? clear_bhb_loop+0x30/0x80 [ 89.065419][ T4492] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 89.071385][ T4492] RIP: 0033:0x7f681a263eea [ 89.075899][ T4492] 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 [ 89.096000][ T4492] RSP: 002b:00007fff7126ae48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 89.104491][ T4492] RAX: ffffffffffffffda RBX: 00007fff7126aed0 RCX: 00007f681a263eea [ 89.112538][ T4492] RDX: 0000200000000180 RSI: 00002000000001c0 RDI: 00007fff7126ae90 [ 89.120515][ T4492] RBP: 0000200000000180 R08: 00007fff7126aed0 R09: 0000000000800700 [ 89.128767][ T4492] R10: 0000000000800700 R11: 0000000000000246 R12: 00002000000001c0 [ 89.136969][ T4492] R13: 00007fff7126ae90 R14: 000000000000046f R15: 00002000000007c0 [ 89.145093][ T4492] [ 89.149755][ T21] Bluetooth: hci0: command 0x041b tx timeout [ 89.162919][ T4492] EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #11: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) [ 89.176850][ T4492] EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 11 err=-117 [ 89.190091][ T4492] EXT4-fs warning (device loop0): ext4_expand_extra_isize_ea:2826: Unable to expand inode 15. Delete some EAs or run e2fsck. [ 89.204522][ T4492] EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #11: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) [ 89.218178][ T4492] EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 11 err=-117 [ 89.231029][ T4492] EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #18: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) [ 89.244750][ T4492] EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 18 err=-117 [ 89.257968][ T4492] EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #18: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) [ 89.272295][ T4492] EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 18 err=-117 [ 89.285533][ T4492] EXT4-fs (loop0): 1 orphan inode deleted SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 89.291711][ T4492] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodioread_nolock,auto_da_alloc,debug_want_extra_isize=0x000000000000005a,nouid32,resgid=0x0000000000000000,acl,init_itable=0x0000000000000003,,errors=continue. Quota mode: none.