[ 9.166919][ T3991] eql: remember to turn off Van-Jacobson compression on your slave devices Starting crond: [ 9.201139][ T526] gvnic 0000:00:00.0 enp0s0: Device link is up. [ 9.209268][ T242] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s0: link becomes ready OK Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.69' (ED25519) to the list of known hosts. 1970/01/01 00:00:30 parsed 1 programs syzkaller login: [ 31.558935][ T4325] cgroup: Unknown subsys name 'net' [ 31.783606][ T4325] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 32.083776][ T4325] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 38.069058][ T4352] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 38.070592][ T4354] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 38.072342][ T4354] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 38.074560][ T4354] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 38.075877][ T4354] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 38.077120][ T4354] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 38.146179][ T316] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 38.147449][ T316] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 38.148987][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 38.157649][ T526] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 38.158901][ T526] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 38.160504][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 38.837922][ T4410] chnl_net:caif_netlink_parms(): no params data found [ 38.865471][ T4410] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.866704][ T4410] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.868182][ T4410] device bridge_slave_0 entered promiscuous mode [ 38.870428][ T4410] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.871741][ T4410] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.873166][ T4410] device bridge_slave_1 entered promiscuous mode [ 38.880217][ T4410] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 38.883254][ T4410] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 38.890609][ T4410] team0: Port device team_slave_0 added [ 38.892432][ T4410] team0: Port device team_slave_1 added [ 38.899058][ T4410] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 38.900149][ T4410] 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. [ 38.904568][ T4410] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 38.907143][ T4410] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 38.908221][ T4410] 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. [ 38.912417][ T4410] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 38.972072][ T4410] device hsr_slave_0 entered promiscuous mode [ 39.001203][ T4410] device hsr_slave_1 entered promiscuous mode [ 39.094914][ T4410] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 39.152615][ T4410] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 39.212246][ T4410] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 39.264421][ T4410] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 39.342333][ T4410] 8021q: adding VLAN 0 to HW filter on device bond0 [ 39.345809][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 39.347571][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.350099][ T4410] 8021q: adding VLAN 0 to HW filter on device team0 [ 39.353484][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 39.355062][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 39.356752][ T526] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.358011][ T526] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.359686][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 39.377537][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 39.379150][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 39.380625][ T526] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.381886][ T526] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.384758][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 39.387351][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 39.390235][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 39.393651][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 39.395193][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 39.397957][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 39.399581][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 39.402983][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 39.404472][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 39.406766][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 39.408277][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 39.410954][ T4410] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 39.461963][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 39.463304][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 39.466925][ T4410] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 39.482362][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 39.484182][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 39.489374][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 39.491279][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 39.492917][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 39.494225][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 39.496775][ T4410] device veth0_vlan entered promiscuous mode [ 39.500440][ T4410] device veth1_vlan entered promiscuous mode [ 39.507468][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 39.508962][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 39.510539][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 39.512685][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 39.515159][ T4410] device veth0_macvtap entered promiscuous mode [ 39.517404][ T4410] device veth1_macvtap entered promiscuous mode [ 39.530665][ T4410] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 39.532162][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 39.533823][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 39.535209][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 39.536762][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 39.539369][ T4410] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 39.540574][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 39.542839][ T526] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 39.545274][ T4410] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.546554][ T4410] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.547931][ T4410] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.549334][ T4410] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:00:40 executed programs: 0 [ 40.158660][ T47] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 40.160300][ T47] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 40.162171][ T47] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 40.163712][ T47] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 40.165043][ T47] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 40.166230][ T47] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 40.393123][ T4440] chnl_net:caif_netlink_parms(): no params data found [ 40.468017][ T4440] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.469272][ T4440] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.470766][ T4440] device bridge_slave_0 entered promiscuous mode [ 40.472815][ T4440] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.473976][ T4440] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.475337][ T4440] device bridge_slave_1 entered promiscuous mode [ 40.494996][ T4440] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 40.497433][ T4440] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 40.504622][ T4440] team0: Port device team_slave_0 added [ 40.506773][ T4440] team0: Port device team_slave_1 added [ 40.512846][ T4440] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 40.513961][ T4440] 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. [ 40.517667][ T4440] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 40.519897][ T4440] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 40.521089][ T4440] 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. [ 40.524814][ T4440] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 40.661806][ T4440] device hsr_slave_0 entered promiscuous mode [ 40.731099][ T4440] device hsr_slave_1 entered promiscuous mode [ 40.770955][ T4440] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 40.772188][ T4440] Cannot create hsr debugfs directory [ 41.222343][ T4440] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 42.171256][ T47] Bluetooth: hci0: command 0x0409 tx timeout [ 44.162762][ T4440] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 44.251223][ T4354] Bluetooth: hci0: command 0x041b tx timeout [ 45.022122][ T4440] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 45.162742][ T4440] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 45.447526][ T4440] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 45.502023][ T4440] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 45.603836][ T4440] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 45.694775][ T4440] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 45.805196][ T4440] 8021q: adding VLAN 0 to HW filter on device bond0 [ 45.808465][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 45.810000][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.813307][ T4440] 8021q: adding VLAN 0 to HW filter on device team0 [ 45.815635][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 45.817132][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 45.818528][ T316] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.819630][ T316] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.822240][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 45.865015][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 45.866699][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.868209][ T39] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.869329][ T39] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.872607][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 45.874914][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 45.878325][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 45.880239][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 45.882207][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 45.884834][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 45.886470][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 45.889214][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 45.890746][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 45.894386][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 45.895930][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 45.898116][ T4440] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 45.959091][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 45.960383][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 45.965067][ T4440] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 45.969892][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 45.972757][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 45.978741][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 45.980172][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 45.982809][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 45.984131][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 45.988286][ T242] device hsr_slave_0 left promiscuous mode [ 46.021189][ T242] device hsr_slave_1 left promiscuous mode [ 46.121043][ T242] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 46.122319][ T242] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 46.124003][ T242] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 46.125233][ T242] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 46.126666][ T242] device bridge_slave_1 left promiscuous mode [ 46.128112][ T242] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.161599][ T242] device bridge_slave_0 left promiscuous mode [ 46.162694][ T242] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.281126][ T242] device veth1_macvtap left promiscuous mode [ 46.282105][ T242] device veth0_macvtap left promiscuous mode [ 46.283396][ T242] device veth1_vlan left promiscuous mode [ 46.284327][ T242] device veth0_vlan left promiscuous mode [ 46.331802][ T47] Bluetooth: hci0: command 0x040f tx timeout [ 48.112162][ T242] team0 (unregistering): Port device team_slave_1 removed [ 48.321801][ T242] team0 (unregistering): Port device team_slave_0 removed [ 48.410937][ T47] Bluetooth: hci0: command 0x0419 tx timeout [ 48.541833][ T242] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 48.781247][ T242] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 51.191740][ T242] bond0 (unregistering): Released all slaves [ 51.465071][ T4440] device veth0_vlan entered promiscuous mode [ 51.468388][ T4440] device veth1_vlan entered promiscuous mode [ 51.471760][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 51.473222][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 51.480475][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 51.482406][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 51.485220][ T4440] device veth0_macvtap entered promiscuous mode [ 51.487976][ T4440] device veth1_macvtap entered promiscuous mode [ 51.492363][ T4440] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 51.493513][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 51.495019][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 51.496362][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 51.497915][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 51.500354][ T4440] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 51.504513][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 51.506142][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 51.508541][ T4440] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.509798][ T4440] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.511702][ T4440] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.513078][ T4440] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.533070][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 51.534199][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 51.537328][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 51.544636][ T316] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 51.545799][ T316] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 51.547536][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 51.593619][ T4461] loop0: detected capacity change from 0 to 512 [ 51.604592][ T4461] [ 51.604987][ T4461] ====================================================== [ 51.606028][ T4461] WARNING: possible circular locking dependency detected [ 51.607032][ T4461] syzkaller #0 Not tainted [ 51.607639][ T4461] ------------------------------------------------------ [ 51.608678][ T4461] syz.0.17/4461 is trying to acquire lock: [ 51.609490][ T4461] ffff0000d46e0b98 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: ext4_writepages+0x188/0x284c [ 51.611042][ T4461] [ 51.611042][ T4461] but task is already holding lock: [ 51.612033][ T4461] ffff0000e2dc80c8 (&ei->xattr_sem){++++}-{3:3}, at: __ext4_mark_inode_dirty+0x37c/0x790 [ 51.613557][ T4461] [ 51.613557][ T4461] which lock already depends on the new lock. [ 51.613557][ T4461] [ 51.615112][ T4461] [ 51.615112][ T4461] the existing dependency chain (in reverse order) is: [ 51.616419][ T4461] [ 51.616419][ T4461] -> #2 (&ei->xattr_sem){++++}-{3:3}: [ 51.617564][ T4461] down_read+0x64/0x304 [ 51.618235][ T4461] ext4_setattr+0x7c4/0x150c [ 51.618929][ T4461] notify_change+0xb0c/0xdcc [ 51.619647][ T4461] chown_common+0x414/0x574 [ 51.620405][ T4461] do_fchownat+0x158/0x268 [ 51.621088][ T4461] __arm64_sys_fchownat+0xb8/0xd4 [ 51.621870][ T4461] invoke_syscall+0x98/0x2bc [ 51.622607][ T4461] el0_svc_common+0x138/0x258 [ 51.623354][ T4461] do_el0_svc+0x58/0x13c [ 51.624018][ T4461] el0_svc+0x58/0x138 [ 51.624688][ T4461] el0t_64_sync_handler+0x84/0xf0 [ 51.625409][ T4461] el0t_64_sync+0x18c/0x190 [ 51.626110][ T4461] [ 51.626110][ T4461] -> #1 (jbd2_handle){++++}-{0:0}: [ 51.627153][ T4461] start_this_handle+0xfe0/0x122c [ 51.627935][ T4461] jbd2__journal_start+0x288/0x51c [ 51.628759][ T4461] __ext4_journal_start_sb+0x2fc/0x674 [ 51.629630][ T4461] ext4_writepages+0xa28/0x284c [ 51.630449][ T4461] do_writepages+0x2c0/0x4fc [ 51.631215][ T4461] __writeback_single_inode+0x164/0x157c [ 51.632246][ T4461] writeback_sb_inodes+0x824/0x1404 [ 51.633170][ T4461] __writeback_inodes_wb+0x110/0x394 [ 51.634070][ T4461] wb_writeback+0x414/0xfb0 [ 51.634865][ T4461] wb_workfn+0xac0/0xd98 [ 51.635560][ T4461] process_one_work+0x7f4/0x13a8 [ 51.636316][ T4461] worker_thread+0x8c8/0xfbc [ 51.637073][ T4461] kthread+0x250/0x2d8 [ 51.637747][ T4461] ret_from_fork+0x10/0x20 [ 51.638462][ T4461] [ 51.638462][ T4461] -> #0 (&sbi->s_writepages_rwsem){.+.+}-{0:0}: [ 51.639659][ T4461] __lock_acquire+0x293c/0x6544 [ 51.640441][ T4461] lock_acquire+0x20c/0x644 [ 51.641227][ T4461] percpu_down_read+0x70/0x2a8 [ 51.642010][ T4461] ext4_writepages+0x188/0x284c [ 51.642770][ T4461] do_writepages+0x2c0/0x4fc [ 51.643520][ T4461] __writeback_single_inode+0x164/0x157c [ 51.644443][ T4461] writeback_single_inode+0x1c0/0x720 [ 51.645393][ T4461] write_inode_now+0x144/0x1b0 [ 51.646132][ T4461] iput+0x5cc/0x7f4 [ 51.646753][ T4461] ext4_xattr_block_set+0x17a4/0x2810 [ 51.647637][ T4461] ext4_expand_extra_isize_ea+0xcb8/0x15cc [ 51.648572][ T4461] __ext4_expand_extra_isize+0x298/0x358 [ 51.649417][ T4461] __ext4_mark_inode_dirty+0x3e4/0x790 [ 51.650258][ T4461] ext4_evict_inode+0xb58/0x1270 [ 51.651071][ T4461] evict+0x3c8/0x810 [ 51.651779][ T4461] iput+0x764/0x7f4 [ 51.652421][ T4461] ext4_process_orphan+0x240/0x2b4 [ 51.653250][ T4461] ext4_orphan_cleanup+0x908/0x104c [ 51.654071][ T4461] ext4_fill_super+0x6440/0x68a8 [ 51.654929][ T4461] get_tree_bdev+0x358/0x544 [ 51.655686][ T4461] ext4_get_tree+0x28/0x38 [ 51.656424][ T4461] vfs_get_tree+0x90/0x274 [ 51.657170][ T4461] do_new_mount+0x228/0x810 [ 51.657872][ T4461] path_mount+0x5b4/0xe78 [ 51.658577][ T4461] __arm64_sys_mount+0x49c/0x584 [ 51.659344][ T4461] invoke_syscall+0x98/0x2bc [ 51.660095][ T4461] el0_svc_common+0x138/0x258 [ 51.660840][ T4461] do_el0_svc+0x58/0x13c [ 51.661530][ T4461] el0_svc+0x58/0x138 [ 51.662153][ T4461] el0t_64_sync_handler+0x84/0xf0 [ 51.663026][ T4461] el0t_64_sync+0x18c/0x190 [ 51.663746][ T4461] [ 51.663746][ T4461] other info that might help us debug this: [ 51.663746][ T4461] [ 51.665192][ T4461] Chain exists of: [ 51.665192][ T4461] &sbi->s_writepages_rwsem --> jbd2_handle --> &ei->xattr_sem [ 51.665192][ T4461] [ 51.667080][ T4461] Possible unsafe locking scenario: [ 51.667080][ T4461] [ 51.668130][ T4461] CPU0 CPU1 [ 51.668891][ T4461] ---- ---- [ 51.669659][ T4461] lock(&ei->xattr_sem); [ 51.670283][ T4461] lock(jbd2_handle); [ 51.671241][ T4461] lock(&ei->xattr_sem); [ 51.672233][ T4461] lock(&sbi->s_writepages_rwsem); [ 51.672992][ T4461] [ 51.672992][ T4461] *** DEADLOCK *** [ 51.672992][ T4461] [ 51.674136][ T4461] 3 locks held by syz.0.17/4461: [ 51.674760][ T4461] #0: ffff0000d330e0e0 (&type->s_umount_key#26/1){+.+.}-{3:3}, at: alloc_super+0x1a4/0x804 [ 51.676141][ T4461] #1: ffff0000d330e650 (sb_internal){.+.+}-{0:0}, at: ext4_evict_inode+0x3dc/0x1270 [ 51.677463][ T4461] #2: ffff0000e2dc80c8 (&ei->xattr_sem){++++}-{3:3}, at: __ext4_mark_inode_dirty+0x37c/0x790 [ 51.678911][ T4461] [ 51.678911][ T4461] stack backtrace: [ 51.679726][ T4461] CPU: 0 PID: 4461 Comm: syz.0.17 Not tainted syzkaller #0 [ 51.680810][ T4461] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 51.682134][ T4461] Call trace: [ 51.682590][ T4461] dump_backtrace+0x1c8/0x1f4 [ 51.683270][ T4461] show_stack+0x2c/0x3c [ 51.683880][ T4461] __dump_stack+0x30/0x40 [ 51.684520][ T4461] dump_stack_lvl+0xf8/0x160 [ 51.685161][ T4461] dump_stack+0x1c/0x5c [ 51.685778][ T4461] print_circular_bug+0x148/0x1b0 [ 51.686512][ T4461] check_noncircular+0x240/0x2d4 [ 51.687270][ T4461] __lock_acquire+0x293c/0x6544 [ 51.687963][ T4461] lock_acquire+0x20c/0x644 [ 51.688600][ T4461] percpu_down_read+0x70/0x2a8 [ 51.689389][ T4461] ext4_writepages+0x188/0x284c [ 51.690199][ T4461] do_writepages+0x2c0/0x4fc [ 51.690949][ T4461] __writeback_single_inode+0x164/0x157c [ 51.691845][ T4461] writeback_single_inode+0x1c0/0x720 [ 51.692636][ T4461] write_inode_now+0x144/0x1b0 [ 51.693331][ T4461] iput+0x5cc/0x7f4 [ 51.693897][ T4461] ext4_xattr_block_set+0x17a4/0x2810 [ 51.694672][ T4461] ext4_expand_extra_isize_ea+0xcb8/0x15cc [ 51.695537][ T4461] __ext4_expand_extra_isize+0x298/0x358 [ 51.696353][ T4461] __ext4_mark_inode_dirty+0x3e4/0x790 [ 51.697137][ T4461] ext4_evict_inode+0xb58/0x1270 [ 51.697869][ T4461] evict+0x3c8/0x810 [ 51.698429][ T4461] iput+0x764/0x7f4 [ 51.699016][ T4461] ext4_process_orphan+0x240/0x2b4 [ 51.699823][ T4461] ext4_orphan_cleanup+0x908/0x104c [ 51.700553][ T4461] ext4_fill_super+0x6440/0x68a8 [ 51.701296][ T4461] get_tree_bdev+0x358/0x544 [ 51.702002][ T4461] ext4_get_tree+0x28/0x38 [ 51.702648][ T4461] vfs_get_tree+0x90/0x274 [ 51.703299][ T4461] do_new_mount+0x228/0x810 [ 51.703981][ T4461] path_mount+0x5b4/0xe78 [ 51.704568][ T4461] __arm64_sys_mount+0x49c/0x584 [ 51.705271][ T4461] invoke_syscall+0x98/0x2bc [ 51.705996][ T4461] el0_svc_common+0x138/0x258 [ 51.706745][ T4461] do_el0_svc+0x58/0x13c [ 51.707314][ T4461] el0_svc+0x58/0x138 [ 51.707871][ T4461] el0t_64_sync_handler+0x84/0xf0 [ 51.708567][ T4461] el0t_64_sync+0x18c/0x190 [ 51.710715][ T4461] EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #11: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) [ 51.713148][ T4461] EXT4-fs (loop0): Remounting filesystem read-only [ 51.714177][ T4461] EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 11 err=-117 [ 51.716137][ T4461] EXT4-fs (loop0): Remounting filesystem read-only [ 51.717057][ T4461] EXT4-fs warning (device loop0): ext4_expand_extra_isize_ea:2819: Unable to expand inode 15. Delete some EAs or run e2fsck. [ 51.718949][ T4461] EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #11: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) [ 51.721617][ T4461] EXT4-fs (loop0): Remounting filesystem read-only [ 51.722678][ T4461] EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 11 err=-117 [ 51.724888][ T4461] EXT4-fs (loop0): Remounting filesystem read-only [ 51.725874][ T4461] EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #18: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) [ 51.727932][ T4461] EXT4-fs (loop0): Remounting filesystem read-only [ 51.728901][ T4461] EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 18 err=-117 [ 51.730805][ T4461] EXT4-fs (loop0): Remounting filesystem read-only [ 51.732102][ T4461] EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #18: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) [ 51.734225][ T4461] EXT4-fs (loop0): Remounting filesystem read-only [ 51.735207][ T4461] EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 18 err=-117 [ 51.737005][ T4461] EXT4-fs (loop0): Remounting filesystem read-only [ 51.737978][ T4461] EXT4-fs (loop0): 1 orphan inode deleted [ 51.738839][ T4461] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: none. [ 51.742667][ T4440] EXT4-fs (loop0): unmounting filesystem.