[ 9.063952][ T3991] eql: remember to turn off Van-Jacobson compression on your slave devices Starting crond: [ 9.095892][ T9] gvnic 0000:00:00.0 enp0s0: Device link is up. [ 9.103232][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s0: link becomes ready OK Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.126' (ED25519) to the list of known hosts. 1970/01/01 00:00:24 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:25 parsed 1 programs syzkaller login: [ 26.091952][ T4326] cgroup: Unknown subsys name 'net' [ 26.311051][ T4326] cgroup: Unknown subsys name 'rlimit' [ 26.572804][ T4326] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 31.208721][ T4362] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 31.210054][ T4362] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 31.211320][ T4362] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 31.212703][ T4362] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 31.214156][ T4362] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 31.215262][ T4362] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 31.429320][ T4375] chnl_net:caif_netlink_parms(): no params data found [ 31.445687][ T4375] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.446776][ T4375] bridge0: port 1(bridge_slave_0) entered disabled state [ 31.448320][ T4375] device bridge_slave_0 entered promiscuous mode [ 31.451455][ T4375] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.452632][ T4375] bridge0: port 2(bridge_slave_1) entered disabled state [ 31.454019][ T4375] device bridge_slave_1 entered promiscuous mode [ 31.462054][ T4375] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 31.464415][ T4375] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 31.475029][ T4375] team0: Port device team_slave_0 added [ 31.476646][ T4375] team0: Port device team_slave_1 added [ 31.482693][ T4375] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 31.483770][ T4375] 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. [ 31.487522][ T4375] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 31.490240][ T4375] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 31.491355][ T4375] 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. [ 31.495057][ T4375] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 31.569589][ T4375] device hsr_slave_0 entered promiscuous mode [ 31.618933][ T4375] device hsr_slave_1 entered promiscuous mode [ 31.709559][ T4375] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 31.721625][ T4375] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 31.772295][ T4375] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 31.809923][ T4375] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 31.876293][ T4375] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.877399][ T4375] bridge0: port 2(bridge_slave_1) entered forwarding state [ 31.878605][ T4375] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.879641][ T4375] bridge0: port 1(bridge_slave_0) entered forwarding state [ 31.895399][ T4375] 8021q: adding VLAN 0 to HW filter on device bond0 [ 31.899825][ T39] bridge0: port 1(bridge_slave_0) entered disabled state [ 31.901460][ T39] bridge0: port 2(bridge_slave_1) entered disabled state [ 31.905063][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 31.906866][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 31.909940][ T4375] 8021q: adding VLAN 0 to HW filter on device team0 [ 31.912204][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 31.913725][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 31.915228][ T39] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.916413][ T39] bridge0: port 1(bridge_slave_0) entered forwarding state [ 31.919452][ T296] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 31.921018][ T296] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 31.922428][ T296] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.923499][ T296] bridge0: port 2(bridge_slave_1) entered forwarding state [ 31.925670][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 31.928121][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 31.931166][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 31.932903][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 31.934463][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 31.936843][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 31.938384][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 31.943899][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 31.945322][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 31.948354][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 31.950431][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 31.953080][ T4375] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 32.000560][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 32.001798][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 32.005296][ T4375] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 32.011789][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 32.013360][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 32.019089][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 32.020660][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 32.022280][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 32.023581][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 32.025495][ T4375] device veth0_vlan entered promiscuous mode [ 32.028730][ T4375] device veth1_vlan entered promiscuous mode [ 32.034829][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 32.036247][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 32.037638][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 32.039746][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 32.042090][ T4375] device veth0_macvtap entered promiscuous mode [ 32.044233][ T4375] device veth1_macvtap entered promiscuous mode [ 32.049565][ T4375] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 32.050819][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 32.052393][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 32.053865][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 32.055639][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 32.058373][ T4375] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 32.059888][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 32.061479][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 32.063898][ T4375] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 32.065194][ T4375] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 32.066514][ T4375] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 32.067861][ T4375] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 32.214728][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 32.216085][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 32.222417][ T296] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 32.222448][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 32.223623][ T296] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 32.226215][ T296] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:00:32 executed programs: 0 [ 32.597597][ T47] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 32.599231][ T47] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 32.600578][ T47] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 32.602068][ T47] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 32.603448][ T47] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 32.604607][ T47] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 33.053969][ T4430] chnl_net:caif_netlink_parms(): no params data found [ 33.070995][ T4430] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.072080][ T4430] bridge0: port 1(bridge_slave_0) entered disabled state [ 33.073440][ T4430] device bridge_slave_0 entered promiscuous mode [ 33.075140][ T4430] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.076190][ T4430] bridge0: port 2(bridge_slave_1) entered disabled state [ 33.077617][ T4430] device bridge_slave_1 entered promiscuous mode [ 33.092837][ T4430] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 33.095271][ T4430] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 33.102938][ T4430] team0: Port device team_slave_0 added [ 33.105693][ T4430] team0: Port device team_slave_1 added [ 33.113100][ T4430] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 33.114142][ T4430] 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. [ 33.117880][ T4430] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 33.121868][ T4430] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 33.123032][ T4430] 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. [ 33.127151][ T4430] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 33.451105][ T11] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 33.489334][ T4430] device hsr_slave_0 entered promiscuous mode [ 33.528633][ T4430] device hsr_slave_1 entered promiscuous mode [ 33.588491][ T4430] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 33.589814][ T4430] Cannot create hsr debugfs directory [ 34.639088][ T47] Bluetooth: hci0: command 0x0409 tx timeout [ 35.879607][ T11] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 36.718529][ T47] Bluetooth: hci0: command 0x041b tx timeout [ 37.279922][ T11] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 37.390310][ T11] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 38.358261][ T4430] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 38.440237][ T4430] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 38.520609][ T4430] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 38.559914][ T4430] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 38.669379][ T4430] 8021q: adding VLAN 0 to HW filter on device bond0 [ 38.672626][ T4437] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 38.674159][ T4437] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 38.676494][ T4430] 8021q: adding VLAN 0 to HW filter on device team0 [ 38.678899][ T4437] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 38.680358][ T4437] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 38.681797][ T4437] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.682805][ T4437] bridge0: port 1(bridge_slave_0) entered forwarding state [ 38.684024][ T4437] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 38.686750][ T4437] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 38.688247][ T4437] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 38.690931][ T4437] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.692079][ T4437] bridge0: port 2(bridge_slave_1) entered forwarding state [ 38.694559][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 38.742063][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 38.744728][ T4437] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 38.746516][ T4437] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 38.747953][ T4437] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 38.750596][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 38.752168][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 38.754488][ T4437] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 38.756063][ T4437] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 38.758370][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 38.761069][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 38.763271][ T4430] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 38.798518][ T47] Bluetooth: hci0: command 0x040f tx timeout [ 38.845427][ T4437] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 38.846670][ T4437] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 38.850217][ T4430] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 38.855246][ T4437] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 38.856764][ T4437] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 38.885248][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 38.886843][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 38.889088][ T4430] device veth0_vlan entered promiscuous mode [ 38.890421][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 38.891825][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 38.894904][ T4430] device veth1_vlan entered promiscuous mode [ 38.903329][ T4430] device veth0_macvtap entered promiscuous mode [ 38.905518][ T4430] device veth1_macvtap entered promiscuous mode [ 38.907461][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 38.910508][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 38.911905][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 38.913405][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 38.914871][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 38.916188][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 38.920326][ T4430] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 38.922068][ T4430] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 38.924007][ T4430] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 38.925096][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 38.926756][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 38.929823][ T4430] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 38.931350][ T4430] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 38.933103][ T4430] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 38.934258][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 38.935779][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 38.938128][ T4430] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.939730][ T4430] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.941061][ T4430] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.942314][ T4430] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.333812][ T259] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 39.337578][ T259] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 39.341219][ T4437] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 39.343114][ T4437] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 39.344167][ T4437] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 39.345646][ T4437] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 39.489645][ T4534] loop0: detected capacity change from 0 to 32768 [ 39.501909][ T4534] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 39.503313][ T4534] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 39.517274][ T4534] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms [ 39.519580][ T4395] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 39.520791][ T4395] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 39.532919][ T4395] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 12ms [ 39.534744][ T4395] gfs2: fsid=syz:syz.0: jid=0: Done [ 39.535790][ T4534] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 39.633282][ T4430] ------------[ cut here ]------------ [ 39.634306][ T4430] WARNING: CPU: 0 PID: 4430 at include/linux/backing-dev.h:247 __folio_mark_dirty+0x8a0/0xce0 [ 39.635914][ T4430] Modules linked in: [ 39.636532][ T4430] CPU: 0 PID: 4430 Comm: syz-executor Not tainted 6.1.148-syzkaller #0 [ 39.637856][ T4430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 39.639481][ T4430] pstate: 824000c5 (Nzcv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 39.640667][ T4430] pc : __folio_mark_dirty+0x8a0/0xce0 [ 39.641575][ T4430] lr : __folio_mark_dirty+0x8a0/0xce0 [ 39.642438][ T4430] sp : ffff800020a076e0 [ 39.643091][ T4430] x29: ffff800020a07700 x28: 1fffff8000660510 x27: dfff800000000000 [ 39.644379][ T4430] x26: 0000000000000000 x25: ffff0000c5113e90 x24: 0000000000000001 [ 39.645548][ T4430] x23: 0000000000000000 x22: fffffc0003302888 x21: 1fffe00018a227d2 [ 39.646695][ T4430] x20: ffff0000c4bce250 x19: fffffc0003302880 x18: ffff800011aabce0 [ 39.647852][ T4430] x17: ffff8000181e7000 x16: ffff8000082d0ec0 x15: ffff800017cc7fc0 [ 39.648993][ T4430] x14: ffff0000ca1dc218 x13: ffff0000ca1dc290 x12: 0000000000ff0100 [ 39.650148][ T4430] x11: ff008000086fb4cc x10: 0000000000000000 x9 : ffff8000086fb4cc [ 39.651273][ T4430] x8 : ffff0000ca1db780 x7 : 0000000000000000 x6 : 0000000000000000 [ 39.652649][ T4430] x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff800008a45edc [ 39.653958][ T4430] x2 : ffff0000ced40060 x1 : 0000000000000000 x0 : 0000000000000000 [ 39.655171][ T4430] Call trace: [ 39.655647][ T4430] __folio_mark_dirty+0x8a0/0xce0 [ 39.656394][ T4430] mark_buffer_dirty+0x2b8/0x5cc [ 39.657114][ T4430] gfs2_unpin+0x120/0x914 [ 39.657743][ T4430] buf_lo_after_commit+0x140/0x188 [ 39.658495][ T4430] gfs2_log_flush+0xbc8/0x1aa0 [ 39.659302][ T4430] gfs2_kill_sb+0x5c/0xd4 [ 39.660001][ T4430] deactivate_locked_super+0xac/0x124 [ 39.660803][ T4430] deactivate_super+0xe8/0x108 [ 39.661543][ T4430] cleanup_mnt+0x37c/0x404 [ 39.662180][ T4430] __cleanup_mnt+0x20/0x30 [ 39.662879][ T4430] task_work_run+0x1ec/0x270 [ 39.663704][ T4430] do_notify_resume+0x1f70/0x2b0c [ 39.664505][ T4430] el0_svc+0x98/0x138 [ 39.665153][ T4430] el0t_64_sync_handler+0x84/0xf0 [ 39.665993][ T4430] el0t_64_sync+0x18c/0x190 [ 39.666756][ T4430] irq event stamp: 163906 [ 39.667425][ T4430] hardirqs last enabled at (163905): [] folio_memcg_lock+0xe8/0x1fc [ 39.668975][ T4430] hardirqs last disabled at (163906): [] _raw_spin_lock_irqsave+0xa4/0xb4 [ 39.670569][ T4430] softirqs last enabled at (163660): [] local_bh_enable+0x10/0x34 [ 39.672050][ T4430] softirqs last disabled at (163658): [] local_bh_disable+0x10/0x34 [ 39.673520][ T4430] ---[ end trace 0000000000000000 ]--- [ 39.676823][ T4430] ------------[ cut here ]------------ [ 39.677633][ T4430] WARNING: CPU: 0 PID: 4430 at include/linux/backing-dev.h:247 __folio_start_writeback+0x868/0xa68 [ 39.679304][ T4430] Modules linked in: [ 39.679866][ T4430] CPU: 0 PID: 4430 Comm: syz-executor Tainted: G W 6.1.148-syzkaller #0 [ 39.681391][ T4430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 39.682953][ T4430] pstate: 824000c5 (Nzcv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 39.684214][ T4430] pc : __folio_start_writeback+0x868/0xa68 [ 39.685135][ T4430] lr : __folio_start_writeback+0x868/0xa68 [ 39.686072][ T4430] sp : ffff800020a07180 [ 39.686723][ T4430] x29: ffff800020a07260 x28: dfff800000000000 x27: 0000000000000000 [ 39.687967][ T4430] x26: ffff700004140e38 x25: 0000000000000000 x24: ffff0000c4bce250 [ 39.689345][ T4430] x23: ffff800020a071e0 x22: ffff0000c5113ce8 x21: 0000000000000001 [ 39.690593][ T4430] x20: fffffc0003302888 x19: fffffc0003302880 x18: ffff800011aabce0 [ 39.691814][ T4430] x17: ffff8000181e7000 x16: ffff8000082d0ec0 x15: 0000000000000000 [ 39.693054][ T4430] x14: 0000000000000406 x13: 1ffff00002a160b1 x12: 0000000000ff0100 [ 39.694344][ T4430] x11: ff008000086fd9e4 x10: 0000000000000000 x9 : ffff8000086fd9e4 [ 39.695561][ T4430] x8 : ffff0000ca1db780 x7 : ffff8000086fd464 x6 : 0000000000000000 [ 39.696913][ T4430] x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff8000086fd4a4 [ 39.698136][ T4430] x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 [ 39.699305][ T4430] Call trace: [ 39.699791][ T4430] __folio_start_writeback+0x868/0xa68 [ 39.700553][ T4430] set_page_writeback+0x5c/0x7c [ 39.701276][ T4430] gfs2_aspace_writepage+0x520/0x6e8 [ 39.702057][ T4430] __gfs2_writepage+0x70/0x18c [ 39.702769][ T4430] write_cache_pages+0x73c/0xdd4 [ 39.703502][ T4430] gfs2_ail1_flush+0x7c0/0xa00 [ 39.704259][ T4430] empty_ail1_list+0x110/0x1ec [ 39.704976][ T4430] gfs2_log_flush+0x1258/0x1aa0 [ 39.705795][ T4430] gfs2_kill_sb+0x5c/0xd4 [ 39.706456][ T4430] deactivate_locked_super+0xac/0x124 [ 39.707222][ T4430] deactivate_super+0xe8/0x108 [ 39.707968][ T4430] cleanup_mnt+0x37c/0x404 [ 39.708683][ T4430] __cleanup_mnt+0x20/0x30 [ 39.709391][ T4430] task_work_run+0x1ec/0x270 [ 39.710126][ T4430] do_notify_resume+0x1f70/0x2b0c [ 39.710890][ T4430] el0_svc+0x98/0x138 [ 39.711461][ T4430] el0t_64_sync_handler+0x84/0xf0 [ 39.712187][ T4430] el0t_64_sync+0x18c/0x190 [ 39.712882][ T4430] irq event stamp: 164000 [ 39.713590][ T4430] hardirqs last enabled at (163999): [] folio_memcg_lock+0xe8/0x1fc [ 39.715148][ T4430] hardirqs last disabled at (164000): [] _raw_spin_lock_irqsave+0xa4/0xb4 [ 39.716696][ T4430] softirqs last enabled at (163978): [] handle_softirqs+0xaf8/0xc6c [ 39.718226][ T4430] softirqs last disabled at (163909): [] __do_softirq+0x14/0x20 [ 39.719586][ T4430] ---[ end trace 0000000000000000 ]--- [ 39.723116][ C0] ------------[ cut here ]------------ [ 39.724068][ C0] WARNING: CPU: 0 PID: 15 at include/linux/backing-dev.h:247 __folio_end_writeback+0x7d4/0x9e0 [ 39.725676][ C0] Modules linked in: [ 39.726342][ C0] CPU: 0 PID: 15 Comm: ksoftirqd/0 Tainted: G W 6.1.148-syzkaller #0 [ 39.727830][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 39.729423][ C0] pstate: 424000c5 (nZcv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 39.730653][ C0] pc : __folio_end_writeback+0x7d4/0x9e0 [ 39.731448][ C0] lr : __folio_end_writeback+0x7d4/0x9e0 [ 39.732280][ C0] sp : ffff80001c8b7960 [ 39.732869][ C0] x29: ffff80001c8b7980 x28: dfff800000000000 x27: ffff0000c5113ce8 [ 39.733990][ C0] x26: 0000000000000000 x25: 05ffd60000002052 x24: 1fffff8000658820 [ 39.735121][ C0] x23: 0000000000000001 x22: ffff0000c4bcc2a0 x21: ffff0000c4bcc2a8 [ 39.736362][ C0] x20: 0000000000000001 x19: fffffc00032c4100 x18: ffff800011aabce0 [ 39.737680][ C0] x17: 1fffe00033ed9d7e x16: ffff8000082d0ec0 x15: 0000000000000000 [ 39.738870][ C0] x14: 0000000000000002 x13: 1ffff00002a160b1 x12: 0000000000ff0100 [ 39.740194][ C0] x11: ff008000086fcf70 x10: 0000000000000000 x9 : ffff8000086fcf70 [ 39.741421][ C0] x8 : ffff0000c09b3780 x7 : 0000000000000000 x6 : 0000000000000000 [ 39.742679][ C0] x5 : 0000000000000080 x4 : 0000000000000000 x3 : 0000000000000010 [ 39.743925][ C0] x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 [ 39.745218][ C0] Call trace: [ 39.745774][ C0] __folio_end_writeback+0x7d4/0x9e0 [ 39.746563][ C0] folio_end_writeback+0x12c/0x41c [ 39.747376][ C0] end_page_writeback+0x58/0x74 [ 39.748160][ C0] end_buffer_async_write+0x32c/0x508 [ 39.749063][ C0] end_bio_bh_io_sync+0xb0/0x1e0 [ 39.749840][ C0] bio_endio+0x770/0x7b4 [ 39.750547][ C0] blk_update_request+0x49c/0xbec [ 39.751322][ C0] blk_mq_end_request+0x54/0x88 [ 39.752103][ C0] lo_complete_rq+0x1ec/0x250 [ 39.752898][ C0] blk_done_softirq+0x11c/0x168 [ 39.753658][ C0] handle_softirqs+0x318/0xc6c [ 39.754393][ C0] run_ksoftirqd+0x7c/0x2a0 [ 39.755110][ C0] smpboot_thread_fn+0x4b0/0x964 [ 39.755807][ C0] kthread+0x250/0x2d8 [ 39.756443][ C0] ret_from_fork+0x10/0x20 [ 39.757166][ C0] irq event stamp: 416105 [ 39.757813][ C0] hardirqs last enabled at (416104): [] folio_memcg_lock+0xe8/0x1fc [ 39.759270][ C0] hardirqs last disabled at (416105): [] _raw_spin_lock_irqsave+0xa4/0xb4 [ 39.760786][ C0] softirqs last enabled at (416094): [] handle_softirqs+0xaf8/0xc6c [ 39.762372][ C0] softirqs last disabled at (416099): [] run_ksoftirqd+0x7c/0x2a0 [ 39.763791][ C0] ---[ end trace 0000000000000000 ]---