[ 9.139224][ T3992] eql: remember to turn off Van-Jacobson compression on your slave devices Starting crond: [ 9.167031][ T9] gvnic 0000:00:00.0 enp0s0: Device link is up. [ 9.173691][ T1860] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s0: link becomes ready OK Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.233' (ED25519) to the list of known hosts. 1970/01/01 00:00:33 parsed 1 programs syzkaller login: [ 34.092068][ T4326] cgroup: Unknown subsys name 'net' [ 34.334414][ T4326] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 34.589190][ T4326] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 38.217073][ T4340] chnl_net:caif_netlink_parms(): no params data found [ 38.234810][ T4340] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.235906][ T4340] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.237304][ T4340] device bridge_slave_0 entered promiscuous mode [ 38.239521][ T4340] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.240590][ T4340] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.242024][ T4340] device bridge_slave_1 entered promiscuous mode [ 38.248988][ T4340] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 38.251281][ T4340] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 38.261319][ T4340] team0: Port device team_slave_0 added [ 38.263296][ T4340] team0: Port device team_slave_1 added [ 38.269537][ T4340] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 38.270657][ T4340] 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. [ 38.274617][ T4340] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 38.277935][ T4340] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 38.278961][ T4340] 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. [ 38.282786][ T4340] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 38.343827][ T4340] device hsr_slave_0 entered promiscuous mode [ 38.392399][ T4340] device hsr_slave_1 entered promiscuous mode [ 38.476100][ T4340] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 38.505157][ T4340] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 38.583230][ T4340] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 38.624817][ T4340] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 38.671343][ T4340] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.672486][ T4340] bridge0: port 2(bridge_slave_1) entered forwarding state [ 38.673770][ T4340] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.674913][ T4340] bridge0: port 1(bridge_slave_0) entered forwarding state [ 38.691761][ T4340] 8021q: adding VLAN 0 to HW filter on device bond0 [ 38.695701][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 38.698211][ T390] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.700514][ T390] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.704226][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 38.708203][ T4340] 8021q: adding VLAN 0 to HW filter on device team0 [ 38.711367][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 38.713403][ T390] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.714500][ T390] bridge0: port 1(bridge_slave_0) entered forwarding state [ 38.718550][ T1860] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 38.719841][ T1860] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.720915][ T1860] bridge0: port 2(bridge_slave_1) entered forwarding state [ 38.727192][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 38.729039][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 38.731818][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 38.735435][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 38.738489][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 38.740670][ T4340] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 38.793745][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 38.795077][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 38.798045][ T4340] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 38.803985][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 38.810163][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 38.811948][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 38.813373][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 38.815639][ T4340] device veth0_vlan entered promiscuous mode [ 38.818684][ T4340] device veth1_vlan entered promiscuous mode [ 38.827286][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 38.828719][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 38.830442][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 38.834206][ T4340] device veth0_macvtap entered promiscuous mode [ 38.836458][ T4340] device veth1_macvtap entered promiscuous mode [ 38.841493][ T4340] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 38.843879][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 38.845805][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 38.848842][ T4340] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 38.850074][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 38.853042][ T4340] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.854412][ T4340] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.855816][ T4340] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.857227][ T4340] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.513654][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 40.042300][ T4400] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 40.043950][ T4400] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 40.045223][ T4400] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 40.046807][ T4400] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 40.048202][ T4400] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 40.049416][ T4400] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 40.323145][ T1860] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 40.324399][ T1860] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 40.326475][ T1860] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 40.333898][ T39] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 40.335044][ T39] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 40.336643][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:00:40 executed programs: 0 [ 40.566267][ T47] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 40.568216][ T47] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 40.569679][ T47] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 40.571188][ T47] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 40.575734][ T47] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 40.577022][ T47] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 40.622566][ T4422] chnl_net:caif_netlink_parms(): no params data found [ 40.638128][ T4422] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.639425][ T4422] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.640942][ T4422] device bridge_slave_0 entered promiscuous mode [ 40.642962][ T4422] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.644153][ T4422] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.645641][ T4422] device bridge_slave_1 entered promiscuous mode [ 40.652973][ T4422] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 40.655687][ T4422] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 40.664015][ T4422] team0: Port device team_slave_0 added [ 40.665728][ T4422] team0: Port device team_slave_1 added [ 40.671418][ T4422] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 40.672825][ T4422] 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. [ 40.676680][ T4422] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 40.678881][ T4422] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 40.679961][ T4422] 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. [ 40.683844][ T4422] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 40.742873][ T4422] device hsr_slave_0 entered promiscuous mode [ 40.802060][ T4422] device hsr_slave_1 entered promiscuous mode [ 40.841992][ T4422] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 40.843351][ T4422] Cannot create hsr debugfs directory [ 42.153016][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 42.652427][ T47] Bluetooth: hci0: command 0x0409 tx timeout [ 44.463221][ T9] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 44.554078][ T9] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 44.742190][ T47] Bluetooth: hci0: command 0x041b tx timeout [ 45.560591][ T4422] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 45.613973][ T4422] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 45.703812][ T4422] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 45.743140][ T4422] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 45.776317][ T9] device hsr_slave_0 left promiscuous mode [ 45.812131][ T9] device hsr_slave_1 left promiscuous mode [ 45.902005][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 45.903243][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 45.904919][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 45.906029][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 45.907381][ T9] device bridge_slave_1 left promiscuous mode [ 45.908913][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.962631][ T9] device bridge_slave_0 left promiscuous mode [ 45.963634][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.102150][ T9] device veth1_macvtap left promiscuous mode [ 46.103235][ T9] device veth0_macvtap left promiscuous mode [ 46.104127][ T9] device veth1_vlan left promiscuous mode [ 46.105095][ T9] device veth0_vlan left promiscuous mode [ 46.812214][ T47] Bluetooth: hci0: command 0x040f tx timeout [ 47.843086][ T9] team0 (unregistering): Port device team_slave_1 removed [ 48.012993][ T9] team0 (unregistering): Port device team_slave_0 removed [ 48.192690][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 48.432323][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 48.891934][ T47] Bluetooth: hci0: command 0x0419 tx timeout [ 51.013532][ T9] bond0 (unregistering): Released all slaves [ 51.263944][ T4422] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.267850][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 51.269368][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.272290][ T4422] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.274886][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 51.276428][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 51.277848][ T4520] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.278897][ T4520] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.280650][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 51.283550][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 51.285100][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 51.286446][ T4520] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.287625][ T4520] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.289944][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 51.296464][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 51.299181][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 51.301037][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 51.302853][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.305396][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 51.306974][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.310202][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.311709][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.317181][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 51.318717][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.320925][ T4422] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.369907][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 51.371281][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 51.375617][ T4422] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.380825][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 51.385328][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 51.391725][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 51.394074][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 51.395556][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 51.397000][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 51.399255][ T4422] device veth0_vlan entered promiscuous mode [ 51.402856][ T4422] device veth1_vlan entered promiscuous mode [ 51.408891][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 51.410456][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 51.412213][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 51.413739][ T4520] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 51.416299][ T4422] device veth0_macvtap entered promiscuous mode [ 51.419056][ T4422] device veth1_macvtap entered promiscuous mode [ 51.425026][ T4422] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 51.426291][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 51.427865][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 51.429290][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 51.430770][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 51.433824][ T4422] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 51.434994][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 51.436531][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 51.438888][ T4422] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.440246][ T4422] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.441601][ T4422] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.443685][ T4422] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.463294][ T4520] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 51.464575][ T4520] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 51.469013][ T212] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 51.476964][ T212] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 51.478174][ T212] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 51.479719][ T390] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 51.533338][ T4533] loop0: detected capacity change from 0 to 512 [ 51.540783][ T4533] [ 51.541209][ T4533] ====================================================== [ 51.542195][ T4533] WARNING: possible circular locking dependency detected [ 51.543160][ T4533] syzkaller #0 Not tainted [ 51.543806][ T4533] ------------------------------------------------------ [ 51.544877][ T4533] syz.0.17/4533 is trying to acquire lock: [ 51.545782][ T4533] ffff0000d2600b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: ext4_writepages+0x188/0x284c [ 51.547733][ T4533] [ 51.547733][ T4533] but task is already holding lock: [ 51.548760][ T4533] ffff0000e9ec4700 (&ei->xattr_sem){++++}-{3:3}, at: __ext4_mark_inode_dirty+0x37c/0x790 [ 51.550201][ T4533] [ 51.550201][ T4533] which lock already depends on the new lock. [ 51.550201][ T4533] [ 51.551699][ T4533] [ 51.551699][ T4533] the existing dependency chain (in reverse order) is: [ 51.552979][ T4533] [ 51.552979][ T4533] -> #2 (&ei->xattr_sem){++++}-{3:3}: [ 51.554039][ T4533] down_read+0x64/0x304 [ 51.554737][ T4533] ext4_setattr+0x7c4/0x150c [ 51.555449][ T4533] notify_change+0xb0c/0xdcc [ 51.556208][ T4533] chown_common+0x414/0x574 [ 51.556953][ T4533] do_fchownat+0x158/0x268 [ 51.557735][ T4533] __arm64_sys_fchownat+0xb8/0xd4 [ 51.558595][ T4533] invoke_syscall+0x98/0x2bc [ 51.559373][ T4533] el0_svc_common+0x138/0x258 [ 51.560154][ T4533] do_el0_svc+0x58/0x13c [ 51.560991][ T4533] el0_svc+0x58/0x138 [ 51.561784][ T4533] el0t_64_sync_handler+0x84/0xf0 [ 51.562650][ T4533] el0t_64_sync+0x18c/0x190 [ 51.563421][ T4533] [ 51.563421][ T4533] -> #1 (jbd2_handle){++++}-{0:0}: [ 51.564587][ T4533] start_this_handle+0xfe0/0x122c [ 51.565362][ T4533] jbd2__journal_start+0x288/0x51c [ 51.566161][ T4533] __ext4_journal_start_sb+0x2fc/0x674 [ 51.567035][ T4533] ext4_writepages+0xa28/0x284c [ 51.567771][ T4533] do_writepages+0x2c0/0x4fc [ 51.568560][ T4533] __writeback_single_inode+0x164/0x157c [ 51.569412][ T4533] writeback_sb_inodes+0x824/0x1404 [ 51.570194][ T4533] __writeback_inodes_wb+0x110/0x394 [ 51.571059][ T4533] wb_writeback+0x414/0xfb0 [ 51.571812][ T4533] wb_workfn+0xac0/0xd98 [ 51.572552][ T4533] process_one_work+0x7f4/0x13a8 [ 51.573370][ T4533] worker_thread+0x8c8/0xfbc [ 51.574133][ T4533] kthread+0x250/0x2d8 [ 51.574783][ T4533] ret_from_fork+0x10/0x20 [ 51.575570][ T4533] [ 51.575570][ T4533] -> #0 (&sbi->s_writepages_rwsem){.+.+}-{0:0}: [ 51.576716][ T4533] __lock_acquire+0x293c/0x6544 [ 51.577464][ T4533] lock_acquire+0x20c/0x644 [ 51.578164][ T4533] percpu_down_read+0x70/0x2a8 [ 51.578871][ T4533] ext4_writepages+0x188/0x284c [ 51.579652][ T4533] do_writepages+0x2c0/0x4fc [ 51.580419][ T4533] __writeback_single_inode+0x164/0x157c [ 51.581322][ T4533] writeback_single_inode+0x1c0/0x720 [ 51.582185][ T4533] write_inode_now+0x144/0x1b0 [ 51.583026][ T4533] iput+0x5cc/0x7f4 [ 51.583658][ T4533] ext4_xattr_block_set+0x17a4/0x2810 [ 51.584572][ T4533] ext4_expand_extra_isize_ea+0xcb8/0x15cc [ 51.585586][ T4533] __ext4_expand_extra_isize+0x298/0x358 [ 51.586544][ T4533] __ext4_mark_inode_dirty+0x3e4/0x790 [ 51.587403][ T4533] ext4_evict_inode+0xb58/0x1270 [ 51.588188][ T4533] evict+0x3c8/0x810 [ 51.588857][ T4533] iput+0x764/0x7f4 [ 51.589499][ T4533] ext4_process_orphan+0x240/0x2b4 [ 51.590278][ T4533] ext4_orphan_cleanup+0x908/0x104c [ 51.591095][ T4533] ext4_fill_super+0x6440/0x68a8 [ 51.591930][ T4533] get_tree_bdev+0x358/0x544 [ 51.592714][ T4533] ext4_get_tree+0x28/0x38 [ 51.593438][ T4533] vfs_get_tree+0x90/0x274 [ 51.594173][ T4533] do_new_mount+0x228/0x810 [ 51.594895][ T4533] path_mount+0x5b4/0xe78 [ 51.595596][ T4533] __arm64_sys_mount+0x49c/0x584 [ 51.596384][ T4533] invoke_syscall+0x98/0x2bc [ 51.597147][ T4533] el0_svc_common+0x138/0x258 [ 51.597955][ T4533] do_el0_svc+0x58/0x13c [ 51.598820][ T4533] el0_svc+0x58/0x138 [ 51.599498][ T4533] el0t_64_sync_handler+0x84/0xf0 [ 51.600354][ T4533] el0t_64_sync+0x18c/0x190 [ 51.601119][ T4533] [ 51.601119][ T4533] other info that might help us debug this: [ 51.601119][ T4533] [ 51.602619][ T4533] Chain exists of: [ 51.602619][ T4533] &sbi->s_writepages_rwsem --> jbd2_handle --> &ei->xattr_sem [ 51.602619][ T4533] [ 51.604728][ T4533] Possible unsafe locking scenario: [ 51.604728][ T4533] [ 51.605778][ T4533] CPU0 CPU1 [ 51.606520][ T4533] ---- ---- [ 51.607264][ T4533] lock(&ei->xattr_sem); [ 51.607858][ T4533] lock(jbd2_handle); [ 51.609035][ T4533] lock(&ei->xattr_sem); [ 51.610215][ T4533] lock(&sbi->s_writepages_rwsem); [ 51.611125][ T4533] [ 51.611125][ T4533] *** DEADLOCK *** [ 51.611125][ T4533] [ 51.612459][ T4533] 3 locks held by syz.0.17/4533: [ 51.613276][ T4533] #0: ffff0000d33160e0 (&type->s_umount_key#26/1){+.+.}-{3:3}, at: alloc_super+0x1a4/0x804 [ 51.614992][ T4533] #1: ffff0000d3316650 (sb_internal){.+.+}-{0:0}, at: ext4_evict_inode+0x3dc/0x1270 [ 51.616448][ T4533] #2: ffff0000e9ec4700 (&ei->xattr_sem){++++}-{3:3}, at: __ext4_mark_inode_dirty+0x37c/0x790 [ 51.618042][ T4533] [ 51.618042][ T4533] stack backtrace: [ 51.618964][ T4533] CPU: 0 PID: 4533 Comm: syz.0.17 Not tainted syzkaller #0 [ 51.620076][ T4533] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 51.621631][ T4533] Call trace: [ 51.622099][ T4533] dump_backtrace+0x1c8/0x1f4 [ 51.622794][ T4533] show_stack+0x2c/0x3c [ 51.623385][ T4533] __dump_stack+0x30/0x40 [ 51.623977][ T4533] dump_stack_lvl+0xf8/0x160 [ 51.624658][ T4533] dump_stack+0x1c/0x5c [ 51.625247][ T4533] print_circular_bug+0x148/0x1b0 [ 51.626021][ T4533] check_noncircular+0x240/0x2d4 [ 51.626815][ T4533] __lock_acquire+0x293c/0x6544 [ 51.627605][ T4533] lock_acquire+0x20c/0x644 [ 51.628299][ T4533] percpu_down_read+0x70/0x2a8 [ 51.629022][ T4533] ext4_writepages+0x188/0x284c [ 51.629773][ T4533] do_writepages+0x2c0/0x4fc [ 51.630439][ T4533] __writeback_single_inode+0x164/0x157c [ 51.631242][ T4533] writeback_single_inode+0x1c0/0x720 [ 51.632044][ T4533] write_inode_now+0x144/0x1b0 [ 51.632855][ T4533] iput+0x5cc/0x7f4 [ 51.633426][ T4533] ext4_xattr_block_set+0x17a4/0x2810 [ 51.634303][ T4533] ext4_expand_extra_isize_ea+0xcb8/0x15cc [ 51.635135][ T4533] __ext4_expand_extra_isize+0x298/0x358 [ 51.635991][ T4533] __ext4_mark_inode_dirty+0x3e4/0x790 [ 51.636841][ T4533] ext4_evict_inode+0xb58/0x1270 [ 51.637589][ T4533] evict+0x3c8/0x810 [ 51.638214][ T4533] iput+0x764/0x7f4 [ 51.638786][ T4533] ext4_process_orphan+0x240/0x2b4 [ 51.639677][ T4533] ext4_orphan_cleanup+0x908/0x104c [ 51.640491][ T4533] ext4_fill_super+0x6440/0x68a8 [ 51.641308][ T4533] get_tree_bdev+0x358/0x544 [ 51.641997][ T4533] ext4_get_tree+0x28/0x38 [ 51.642673][ T4533] vfs_get_tree+0x90/0x274 [ 51.643264][ T4533] do_new_mount+0x228/0x810 [ 51.643984][ T4533] path_mount+0x5b4/0xe78 [ 51.644579][ T4533] __arm64_sys_mount+0x49c/0x584 [ 51.645269][ T4533] invoke_syscall+0x98/0x2bc [ 51.645956][ T4533] el0_svc_common+0x138/0x258 [ 51.646620][ T4533] do_el0_svc+0x58/0x13c [ 51.647246][ T4533] el0_svc+0x58/0x138 [ 51.647811][ T4533] el0t_64_sync_handler+0x84/0xf0 [ 51.648546][ T4533] el0t_64_sync+0x18c/0x190 [ 51.651695][ T4533] EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #11: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) [ 51.654074][ T4533] EXT4-fs (loop0): Remounting filesystem read-only [ 51.655037][ T4533] EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 11 err=-117 [ 51.657013][ T4533] EXT4-fs (loop0): Remounting filesystem read-only [ 51.657911][ T4533] EXT4-fs warning (device loop0): ext4_expand_extra_isize_ea:2819: Unable to expand inode 15. Delete some EAs or run e2fsck. [ 51.659695][ T4533] EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #11: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) [ 51.661587][ T4533] EXT4-fs (loop0): Remounting filesystem read-only [ 51.662722][ T4533] EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 11 err=-117 [ 51.664723][ T4533] EXT4-fs (loop0): Remounting filesystem read-only [ 51.665823][ T4533] EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #18: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) [ 51.667892][ T4533] EXT4-fs (loop0): Remounting filesystem read-only [ 51.668895][ T4533] EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 18 err=-117 [ 51.670760][ T4533] EXT4-fs (loop0): Remounting filesystem read-only [ 51.671704][ T4533] EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #18: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) [ 51.674049][ T4533] EXT4-fs (loop0): Remounting filesystem read-only [ 51.675078][ T4533] EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 18 err=-117 [ 51.677075][ T4533] EXT4-fs (loop0): Remounting filesystem read-only [ 51.678140][ T4533] EXT4-fs (loop0): 1 orphan inode deleted [ 51.679020][ T4533] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: none. [ 51.691423][ T4422] EXT4-fs (loop0): unmounting filesystem.