no interfaces have a carrier [ 34.750169][ T3853] 8021q: adding VLAN 0 to HW filter on device bond0 [ 34.760054][ T3853] eql: remember to turn off Van-Jacobson compression on your slave devices Starting crond: OK Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.206' (ED25519) to the list of known hosts. 2025/11/13 04:16:12 parsed 1 programs syzkaller login: [ 67.464676][ T4190] cgroup: Unknown subsys name 'net' [ 67.603806][ T4190] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 68.984558][ T4190] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 70.318116][ T4200] chnl_net:caif_netlink_parms(): no params data found [ 70.365715][ T4200] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.373294][ T4200] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.381524][ T4200] device bridge_slave_0 entered promiscuous mode [ 70.390429][ T4200] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.397600][ T4200] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.405737][ T4200] device bridge_slave_1 entered promiscuous mode [ 70.428781][ T4200] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.439872][ T4200] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.463721][ T4200] team0: Port device team_slave_0 added [ 70.471246][ T4200] team0: Port device team_slave_1 added [ 70.490678][ T4200] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.497735][ T4200] 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. [ 70.523840][ T4200] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.537056][ T4200] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.544011][ T4200] 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. [ 70.569990][ T4200] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.601458][ T4200] device hsr_slave_0 entered promiscuous mode [ 70.608966][ T4200] device hsr_slave_1 entered promiscuous mode [ 70.702698][ T4200] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 70.713244][ T4200] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 70.723016][ T4200] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 70.732124][ T4200] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 70.757468][ T4200] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.764611][ T4200] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.772424][ T4200] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.779525][ T4200] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.821070][ T4200] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.832404][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.842988][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.851750][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.859716][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 70.872384][ T4200] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.882784][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.891453][ T144] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.898514][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.911355][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.920128][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.927216][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.945406][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.954384][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.964888][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.976909][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.988209][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.999422][ T4200] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 71.079569][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 71.087155][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 71.095905][ T1420] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.102364][ T1420] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.103736][ T4200] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.127299][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 71.146603][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 71.155690][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 71.163355][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 71.173601][ T4200] device veth0_vlan entered promiscuous mode [ 71.184388][ T4200] device veth1_vlan entered promiscuous mode [ 71.203564][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 71.211827][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 71.220455][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 71.230553][ T4200] device veth0_macvtap entered promiscuous mode [ 71.240229][ T4200] device veth1_macvtap entered promiscuous mode [ 71.256562][ T4200] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 71.264208][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 71.273281][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 71.286349][ T4200] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 71.293658][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 71.302506][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 71.313318][ T4200] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.323418][ T4200] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.332518][ T4200] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.341925][ T4200] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.460944][ T4200] syz-executor (4200) used greatest stack depth: 20640 bytes left [ 71.478190][ T154] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.221297][ T154] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.711344][ T154] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.782158][ T154] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.106564][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.114558][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.146705][ T4268] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 77.158244][ T619] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.168064][ T619] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.189026][ T4268] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 77.551552][ T154] device hsr_slave_0 left promiscuous mode [ 77.560715][ T154] device hsr_slave_1 left promiscuous mode [ 77.581575][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 77.601089][ T154] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 77.610611][ T154] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 77.620694][ T154] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 77.629867][ T154] device bridge_slave_1 left promiscuous mode 2025/11/13 04:16:25 executed programs: 0 [ 77.655845][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.680922][ T154] device bridge_slave_0 left promiscuous mode [ 77.696437][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.727841][ T154] device veth1_macvtap left promiscuous mode [ 77.734150][ T154] device veth0_macvtap left promiscuous mode [ 77.742267][ T154] device veth1_vlan left promiscuous mode [ 77.748373][ T154] device veth0_vlan left promiscuous mode [ 77.919467][ T154] team0 (unregistering): Port device team_slave_1 removed [ 77.933467][ T154] team0 (unregistering): Port device team_slave_0 removed [ 77.946691][ T154] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 77.959535][ T154] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 78.012298][ T154] bond0 (unregistering): Released all slaves [ 78.232915][ T4313] chnl_net:caif_netlink_parms(): no params data found [ 78.290267][ T4313] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.297867][ T4313] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.306329][ T4313] device bridge_slave_0 entered promiscuous mode [ 78.314669][ T4313] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.321861][ T4313] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.329872][ T4313] device bridge_slave_1 entered promiscuous mode [ 78.355315][ T4313] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.377194][ T4313] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.407268][ T4313] team0: Port device team_slave_0 added [ 78.415370][ T4313] team0: Port device team_slave_1 added [ 78.438967][ T4313] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.446287][ T4313] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 78.472456][ T4313] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.500062][ T4313] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.518967][ T4313] 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. [ 78.547444][ T4313] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 78.589651][ T4313] device hsr_slave_0 entered promiscuous mode [ 78.597540][ T4313] device hsr_slave_1 entered promiscuous mode [ 79.151728][ T4313] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 79.167799][ T4313] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 79.196186][ T4313] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 79.210863][ T4313] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 79.290019][ T4313] 8021q: adding VLAN 0 to HW filter on device bond0 [ 79.304450][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 79.314455][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 79.326688][ T4313] 8021q: adding VLAN 0 to HW filter on device team0 [ 79.339296][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 79.349593][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 79.365681][ T619] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.372755][ T619] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.397972][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 79.406812][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 79.417786][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 79.428464][ T619] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.435598][ T619] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.446552][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 79.457667][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 79.467936][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 79.479813][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.500436][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 79.510404][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 79.520113][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 79.532983][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 79.549157][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 79.562092][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 79.573087][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 79.584320][ T4313] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 79.786398][ T4313] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.794609][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 79.804778][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 79.805613][ T4212] Bluetooth: hci0: command 0x0409 tx timeout [ 79.839142][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 79.849017][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 79.891214][ T4313] device veth0_vlan entered promiscuous mode [ 79.901032][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 79.909430][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 79.926108][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 79.940121][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 79.958762][ T4313] device veth1_vlan entered promiscuous mode [ 80.002546][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 80.010795][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 80.027434][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 80.045613][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 80.069801][ T4313] device veth0_macvtap entered promiscuous mode [ 80.080658][ T4313] device veth1_macvtap entered promiscuous mode [ 80.107302][ T4313] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 80.114685][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 80.135697][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 80.144308][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 80.165571][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 80.186126][ T4313] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 80.193451][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 80.218132][ T619] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 80.238362][ T4313] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.248754][ T4313] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.257538][ T4313] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.268153][ T4313] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.352709][ T144] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.373948][ T144] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.394387][ T619] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.408509][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 80.416923][ T619] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.451004][ T4389] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 80.662353][ T4423] loop0: detected capacity change from 0 to 512 [ 80.812637][ T4423] [ 80.815014][ T4423] ====================================================== [ 80.822043][ T4423] WARNING: possible circular locking dependency detected [ 80.829088][ T4423] syzkaller #0 Not tainted [ 80.833539][ T4423] ------------------------------------------------------ [ 80.840562][ T4423] syz.0.17/4423 is trying to acquire lock: [ 80.846374][ T4423] ffff88807d6dabd8 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: ext4_writepages+0x1c0/0x2d20 [ 80.856490][ T4423] [ 80.856490][ T4423] but task is already holding lock: [ 80.863871][ T4423] ffff88807537ee70 (&ei->xattr_sem){++++}-{3:3}, at: __ext4_mark_inode_dirty+0x3e8/0x700 [ 80.873726][ T4423] [ 80.873726][ T4423] which lock already depends on the new lock. [ 80.873726][ T4423] [ 80.884142][ T4423] [ 80.884142][ T4423] the existing dependency chain (in reverse order) is: [ 80.893157][ T4423] [ 80.893157][ T4423] -> #2 (&ei->xattr_sem){++++}-{3:3}: [ 80.900725][ T4423] down_read+0x44/0x2e0 [ 80.905422][ T4423] ext4_setattr+0x71d/0x19e0 [ 80.910548][ T4423] notify_change+0xbcd/0xee0 [ 80.915675][ T4423] chown_common+0x483/0x610 [ 80.920718][ T4423] do_fchownat+0x164/0x270 [ 80.925665][ T4423] __x64_sys_chown+0x7e/0x90 [ 80.930789][ T4423] do_syscall_64+0x4c/0xa0 [ 80.935730][ T4423] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 80.942156][ T4423] [ 80.942156][ T4423] -> #1 (jbd2_handle){++++}-{0:0}: [ 80.949466][ T4423] start_this_handle+0x1338/0x15a0 [ 80.955106][ T4423] jbd2__journal_start+0x2b7/0x5a0 [ 80.960745][ T4423] __ext4_journal_start_sb+0x167/0x360 [ 80.966747][ T4423] ext4_writepages+0xdc2/0x2d20 [ 80.972130][ T4423] do_writepages+0x48d/0x6d0 [ 80.977272][ T4423] __writeback_single_inode+0x153/0xda0 [ 80.983343][ T4423] writeback_sb_inodes+0x9fe/0x1610 [ 80.989068][ T4423] __writeback_inodes_wb+0x12a/0x3f0 [ 80.994878][ T4423] wb_writeback+0x455/0xb90 [ 80.999905][ T4423] wb_workfn+0xb47/0xe60 [ 81.004678][ T4423] process_one_work+0x863/0x1000 [ 81.010136][ T4423] worker_thread+0xaa8/0x12a0 [ 81.015341][ T4423] kthread+0x436/0x520 [ 81.019967][ T4423] ret_from_fork+0x1f/0x30 [ 81.024913][ T4423] [ 81.024913][ T4423] -> #0 (&sbi->s_writepages_rwsem){.+.+}-{0:0}: [ 81.033345][ T4423] __lock_acquire+0x2c33/0x7c60 [ 81.038730][ T4423] lock_acquire+0x197/0x3f0 [ 81.043765][ T4423] percpu_down_read+0x46/0x1b0 [ 81.049061][ T4423] ext4_writepages+0x1c0/0x2d20 [ 81.054446][ T4423] do_writepages+0x48d/0x6d0 [ 81.059574][ T4423] __writeback_single_inode+0x153/0xda0 [ 81.065660][ T4423] writeback_single_inode+0x221/0x8b0 [ 81.071584][ T4423] write_inode_now+0x217/0x280 [ 81.076888][ T4423] iput+0x5ab/0x8a0 [ 81.081231][ T4423] ext4_xattr_set_entry+0x10ff/0x3d30 [ 81.087145][ T4423] ext4_xattr_block_set+0x4f7/0x2d30 [ 81.092972][ T4423] ext4_expand_extra_isize_ea+0xf4b/0x19a0 [ 81.099317][ T4423] __ext4_expand_extra_isize+0x301/0x3e0 [ 81.105483][ T4423] __ext4_mark_inode_dirty+0x469/0x700 [ 81.111566][ T4423] ext4_evict_inode+0xa81/0x1080 [ 81.117045][ T4423] evict+0x485/0x870 [ 81.121472][ T4423] ext4_orphan_cleanup+0xaa9/0x12e0 [ 81.127201][ T4423] ext4_fill_super+0x92f0/0x9a60 [ 81.132672][ T4423] mount_bdev+0x287/0x3c0 [ 81.137535][ T4423] legacy_get_tree+0xe6/0x180 [ 81.142753][ T4423] vfs_get_tree+0x88/0x270 [ 81.147721][ T4423] do_new_mount+0x24a/0xa40 [ 81.152769][ T4423] __se_sys_mount+0x2d6/0x3c0 [ 81.157994][ T4423] do_syscall_64+0x4c/0xa0 [ 81.163017][ T4423] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.169433][ T4423] [ 81.169433][ T4423] other info that might help us debug this: [ 81.169433][ T4423] [ 81.179652][ T4423] Chain exists of: [ 81.179652][ T4423] &sbi->s_writepages_rwsem --> jbd2_handle --> &ei->xattr_sem [ 81.179652][ T4423] [ 81.193086][ T4423] Possible unsafe locking scenario: [ 81.193086][ T4423] [ 81.200701][ T4423] CPU0 CPU1 [ 81.206072][ T4423] ---- ---- [ 81.211436][ T4423] lock(&ei->xattr_sem); [ 81.215778][ T4423] lock(jbd2_handle); [ 81.222363][ T4423] lock(&ei->xattr_sem); [ 81.229210][ T4423] lock(&sbi->s_writepages_rwsem); [ 81.234408][ T4423] [ 81.234408][ T4423] *** DEADLOCK *** [ 81.234408][ T4423] [ 81.242543][ T4423] 3 locks held by syz.0.17/4423: [ 81.247477][ T4423] #0: ffff88807d6d80e0 (&type->s_umount_key#28/1){+.+.}-{3:3}, at: alloc_super+0x201/0x950 [ 81.257596][ T4423] #1: ffff88807d6d8650 (sb_internal){.+.+}-{0:0}, at: ext4_evict_inode+0x444/0x1080 [ 81.267079][ T4423] #2: ffff88807537ee70 (&ei->xattr_sem){++++}-{3:3}, at: __ext4_mark_inode_dirty+0x3e8/0x700 [ 81.277443][ T4423] [ 81.277443][ T4423] stack backtrace: [ 81.283344][ T4423] CPU: 1 PID: 4423 Comm: syz.0.17 Not tainted syzkaller #0 [ 81.290545][ T4423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 81.300635][ T4423] Call Trace: [ 81.303925][ T4423] [ 81.306856][ T4423] dump_stack_lvl+0x168/0x230 [ 81.311541][ T4423] ? load_image+0x3b0/0x3b0 [ 81.316046][ T4423] ? show_regs_print_info+0x20/0x20 [ 81.321391][ T4423] ? print_circular_bug+0x12b/0x1a0 [ 81.326598][ T4423] check_noncircular+0x274/0x310 [ 81.331537][ T4423] ? add_chain_block+0x940/0x940 [ 81.336493][ T4423] ? lockdep_lock+0xdc/0x1e0 [ 81.341088][ T4423] ? lockdep_unlock+0x134/0x2d0 [ 81.345955][ T4423] ? mark_lock+0x94/0x320 [ 81.350292][ T4423] __lock_acquire+0x2c33/0x7c60 [ 81.355152][ T4423] ? read_lock_is_recursive+0x10/0x10 [ 81.360521][ T4423] ? verify_lock_unused+0x140/0x140 [ 81.365722][ T4423] ? verify_lock_unused+0x140/0x140 [ 81.370942][ T4423] lock_acquire+0x197/0x3f0 [ 81.375445][ T4423] ? ext4_writepages+0x1c0/0x2d20 [ 81.380468][ T4423] ? check_path+0x40/0x40 [ 81.384804][ T4423] ? __might_sleep+0xf0/0xf0 [ 81.389412][ T4423] ? read_lock_is_recursive+0x10/0x10 [ 81.394876][ T4423] ? mark_lock+0x94/0x320 [ 81.399225][ T4423] ? __lock_acquire+0x13ad/0x7c60 [ 81.404341][ T4423] percpu_down_read+0x46/0x1b0 [ 81.409104][ T4423] ? ext4_writepages+0x1c0/0x2d20 [ 81.414131][ T4423] ext4_writepages+0x1c0/0x2d20 [ 81.418980][ T4423] ? rcu_is_watching+0x11/0xa0 [ 81.423769][ T4423] ? lock_release+0xba/0x870 [ 81.428359][ T4423] ? rcu_lock_release+0x5/0x20 [ 81.433129][ T4423] ? mark_lock+0x94/0x320 [ 81.437456][ T4423] ? verify_lock_unused+0x140/0x140 [ 81.442660][ T4423] ? mark_lock+0x94/0x320 [ 81.446990][ T4423] ? ext4_readpage+0x2e0/0x2e0 [ 81.451779][ T4423] ? __lock_acquire+0x13ad/0x7c60 [ 81.456802][ T4423] ? rcu_lock_release+0x5/0x20 [ 81.461572][ T4423] ? __lock_acquire+0x7c60/0x7c60 [ 81.466598][ T4423] ? do_raw_spin_lock+0x11d/0x280 [ 81.471743][ T4423] ? _raw_spin_lock_irqsave+0x7f/0xf0 [ 81.477116][ T4423] ? do_raw_spin_unlock+0x11d/0x230 [ 81.482312][ T4423] ? ext4_readpage+0x2e0/0x2e0 [ 81.487078][ T4423] do_writepages+0x48d/0x6d0 [ 81.491694][ T4423] ? __writepage+0x130/0x130 [ 81.496283][ T4423] ? writeback_single_inode+0x216/0x8b0 [ 81.501832][ T4423] ? __lock_acquire+0x7c60/0x7c60 [ 81.506855][ T4423] ? do_raw_spin_lock+0x11d/0x280 [ 81.511886][ T4423] __writeback_single_inode+0x153/0xda0 [ 81.517433][ T4423] writeback_single_inode+0x221/0x8b0 [ 81.522830][ T4423] ? write_inode_now+0x280/0x280 [ 81.527782][ T4423] write_inode_now+0x217/0x280 [ 81.532661][ T4423] ? bdi_split_work_to_wbs+0x820/0x820 [ 81.538128][ T4423] ? do_raw_spin_unlock+0x11d/0x230 [ 81.543326][ T4423] iput+0x5ab/0x8a0 [ 81.547134][ T4423] ext4_xattr_set_entry+0x10ff/0x3d30 [ 81.552522][ T4423] ? ext4_xattr_ibody_set+0x330/0x330 [ 81.557895][ T4423] ? rcu_is_watching+0x11/0xa0 [ 81.562659][ T4423] ? kmem_cache_free+0x14c/0x210 [ 81.567956][ T4423] ? mb_cache_entry_delete_or_get+0x1bd/0x1e0 [ 81.574029][ T4423] ext4_xattr_block_set+0x4f7/0x2d30 [ 81.579324][ T4423] ? do_raw_spin_unlock+0x11d/0x230 [ 81.584526][ T4423] ? __ext4_xattr_check_block+0x7d8/0x8d0 [ 81.590246][ T4423] ? ext4_xattr_block_find+0x500/0x500 [ 81.595719][ T4423] ? ext4_xattr_block_find+0x433/0x500 [ 81.601176][ T4423] ext4_expand_extra_isize_ea+0xf4b/0x19a0 [ 81.606991][ T4423] __ext4_expand_extra_isize+0x301/0x3e0 [ 81.612642][ T4423] __ext4_mark_inode_dirty+0x469/0x700 [ 81.618101][ T4423] ext4_evict_inode+0xa81/0x1080 [ 81.623033][ T4423] ? _raw_spin_unlock+0x24/0x40 [ 81.627879][ T4423] ? ext4_inode_is_fast_symlink+0x390/0x390 [ 81.633770][ T4423] ? do_raw_spin_unlock+0x11d/0x230 [ 81.638965][ T4423] ? ext4_inode_is_fast_symlink+0x390/0x390 [ 81.644852][ T4423] evict+0x485/0x870 [ 81.648741][ T4423] ? __lock_acquire+0x7c60/0x7c60 [ 81.653765][ T4423] ? proc_nr_inodes+0x320/0x320 [ 81.658612][ T4423] ? do_raw_spin_unlock+0x11d/0x230 [ 81.663809][ T4423] ? _raw_spin_unlock+0x24/0x40 [ 81.668658][ T4423] ? iput+0x706/0x8a0 [ 81.672644][ T4423] ext4_orphan_cleanup+0xaa9/0x12e0 [ 81.677852][ T4423] ? ext4_orphan_del+0xb90/0xb90 [ 81.682795][ T4423] ? errseq_check_and_advance+0x62/0x120 [ 81.688431][ T4423] ext4_fill_super+0x92f0/0x9a60 [ 81.693385][ T4423] ? ext4_mount+0x40/0x40 [ 81.697712][ T4423] ? set_blocksize+0x1f1/0x370 [ 81.702483][ T4423] ? sb_set_blocksize+0xa5/0xe0 [ 81.707364][ T4423] mount_bdev+0x287/0x3c0 [ 81.711714][ T4423] ? ext4_mount+0x40/0x40 [ 81.716062][ T4423] legacy_get_tree+0xe6/0x180 [ 81.720735][ T4423] ? ext4_errno_to_code+0x160/0x160 [ 81.725933][ T4423] vfs_get_tree+0x88/0x270 [ 81.730351][ T4423] do_new_mount+0x24a/0xa40 [ 81.734857][ T4423] __se_sys_mount+0x2d6/0x3c0 [ 81.739532][ T4423] ? __x64_sys_mount+0xc0/0xc0 [ 81.744296][ T4423] ? lockdep_hardirqs_on+0x94/0x140 [ 81.749489][ T4423] ? __x64_sys_mount+0x1c/0xc0 [ 81.754255][ T4423] do_syscall_64+0x4c/0xa0 [ 81.758668][ T4423] ? clear_bhb_loop+0x30/0x80 [ 81.763344][ T4423] ? clear_bhb_loop+0x30/0x80 [ 81.768017][ T4423] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 81.773918][ T4423] RIP: 0033:0x7f3031b80e6a [ 81.778330][ T4423] 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 [ 81.797969][ T4423] RSP: 002b:00007ffc07fd3528 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 81.806522][ T4423] RAX: ffffffffffffffda RBX: 00007ffc07fd35b0 RCX: 00007f3031b80e6a [ 81.814631][ T4423] RDX: 0000200000000180 RSI: 00002000000001c0 RDI: 00007ffc07fd3570 [ 81.822602][ T4423] RBP: 0000200000000180 R08: 00007ffc07fd35b0 R09: 0000000000800700 [ 81.830571][ T4423] R10: 0000000000800700 R11: 0000000000000246 R12: 00002000000001c0 [ 81.838845][ T4423] R13: 00007ffc07fd3570 R14: 000000000000046f R15: 000000000000002c [ 81.846822][ T4423] [ 81.851385][ T13] cfg80211: failed to load regulatory.db [ 81.878819][ T13] Bluetooth: hci0: command 0x041b tx timeout [ 81.907947][ T4423] EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #11: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) [ 81.930364][ T4423] EXT4-fs (loop0): Remounting filesystem read-only [ 81.938273][ T4423] EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 11 err=-117 [ 81.960550][ T4423] EXT4-fs (loop0): Remounting filesystem read-only [ 81.967230][ T4423] EXT4-fs warning (device loop0): ext4_expand_extra_isize_ea:2826: Unable to expand inode 15. Delete some EAs or run e2fsck. [ 81.990382][ T4423] EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #11: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) [ 82.004244][ T4423] EXT4-fs (loop0): Remounting filesystem read-only [ 82.012749][ T4423] EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 11 err=-117 [ 82.025797][ T4423] EXT4-fs (loop0): Remounting filesystem read-only [ 82.032365][ T4423] EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #18: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) [ 82.055192][ T4423] EXT4-fs (loop0): Remounting filesystem read-only [ 82.061787][ T4423] EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 18 err=-117 [ 82.074516][ T4423] EXT4-fs (loop0): Remounting filesystem read-only [ 82.081718][ T4423] EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #18: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) [ 82.096323][ T4423] EXT4-fs (loop0): Remounting filesystem read-only [ 82.102896][ T4423] EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 18 err=-117 [ 82.117468][ T4423] EXT4-fs (loop0): Remounting filesystem read-only [ 82.124082][ T4423] EXT4-fs (loop0): 1 orphan inode deleted [ 82.130145][ T4423] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodioread_nolock,errors=remount-ro,debug_want_extra_isize=0x000000000000005a,nouid32,resgid=0x0000000000000000,acl,init_itable=0x0000000000000003,. Quota mode: none.