Warning: Permanently added '10.128.0.154' (ED25519) to the list of known hosts. 1970/01/01 00:00:29 parsed 1 programs 1970/01/01 00:00:29 serving rpc on tcp://37891 [ 30.632311][ T4341] cgroup: Unknown subsys name 'net' [ 30.879324][ T4341] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 31.155260][ T4341] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 37.551870][ T4387] chnl_net:caif_netlink_parms(): no params data found [ 37.570457][ T4387] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.572001][ T4387] bridge0: port 1(bridge_slave_0) entered disabled state [ 37.573726][ T4387] device bridge_slave_0 entered promiscuous mode [ 37.576756][ T4387] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.578017][ T4387] bridge0: port 2(bridge_slave_1) entered disabled state [ 37.579687][ T4387] device bridge_slave_1 entered promiscuous mode [ 37.586641][ T4387] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 37.589403][ T4387] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 37.595749][ T4387] team0: Port device team_slave_0 added [ 37.598480][ T4387] team0: Port device team_slave_1 added [ 37.603749][ T4387] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 37.605058][ T4387] 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. [ 37.610056][ T4387] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 37.613162][ T4387] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 37.614443][ T4387] 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. [ 37.619525][ T4387] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 37.667949][ T4387] device hsr_slave_0 entered promiscuous mode [ 37.706432][ T4387] device hsr_slave_1 entered promiscuous mode [ 37.787370][ T4387] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 37.818385][ T4387] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 37.867725][ T4387] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 37.928917][ T4387] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 37.993221][ T4387] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.994558][ T4387] bridge0: port 2(bridge_slave_1) entered forwarding state [ 37.996218][ T4387] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.997466][ T4387] bridge0: port 1(bridge_slave_0) entered forwarding state [ 38.014400][ T4387] 8021q: adding VLAN 0 to HW filter on device bond0 [ 38.019470][ T1590] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 38.022158][ T1590] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.024085][ T1590] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.038594][ T4387] 8021q: adding VLAN 0 to HW filter on device team0 [ 38.041710][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 38.043360][ T258] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.044628][ T258] bridge0: port 1(bridge_slave_0) entered forwarding state [ 38.047892][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 38.049601][ T258] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.050899][ T258] bridge0: port 2(bridge_slave_1) entered forwarding state [ 38.058270][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 38.060569][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 38.063627][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 38.067627][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 38.070418][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 38.073066][ T4387] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 38.141217][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 38.142710][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 38.147177][ T4387] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 38.152785][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 38.154690][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 38.160806][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 38.162730][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 38.164622][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 38.167445][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 38.179366][ T4387] device veth0_vlan entered promiscuous mode [ 38.182845][ T4387] device veth1_vlan entered promiscuous mode [ 38.190259][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 38.192279][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 38.194063][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 38.195647][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 38.198925][ T4387] device veth0_macvtap entered promiscuous mode [ 38.201436][ T4387] device veth1_macvtap entered promiscuous mode [ 38.206068][ T4387] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 38.208364][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 38.210028][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 38.211634][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 38.213285][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 38.216570][ T4387] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 38.217884][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 38.219549][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 38.222270][ T4387] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.223821][ T4387] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.225200][ T4387] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.227969][ T4387] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.799217][ T4425] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 38.801096][ T4425] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 38.802520][ T4425] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 38.804194][ T4425] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 38.805793][ T4425] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 38.808445][ T4425] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 38.912769][ T1590] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 38.914182][ T1590] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 38.916026][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 38.926746][ T258] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 38.928193][ T258] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 38.929600][ T258] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 39.188801][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:00:39 executed programs: 0 [ 39.322495][ T48] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 39.324604][ T48] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 39.326331][ T48] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 39.328668][ T48] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 39.330220][ T48] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 39.331736][ T48] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 39.378751][ T4438] chnl_net:caif_netlink_parms(): no params data found [ 39.396076][ T4438] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.397721][ T4438] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.399419][ T4438] device bridge_slave_0 entered promiscuous mode [ 39.401804][ T4438] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.403017][ T4438] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.404543][ T4438] device bridge_slave_1 entered promiscuous mode [ 39.411278][ T4438] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 39.413730][ T4438] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 39.421090][ T4438] team0: Port device team_slave_0 added [ 39.422857][ T4438] team0: Port device team_slave_1 added [ 39.430066][ T4438] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 39.431699][ T4438] 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. [ 39.436052][ T4438] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 39.439494][ T4438] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 39.440762][ T4438] 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. [ 39.445219][ T4438] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 39.497491][ T4438] device hsr_slave_0 entered promiscuous mode [ 39.526419][ T4438] device hsr_slave_1 entered promiscuous mode [ 39.566309][ T4438] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 39.567754][ T4438] Cannot create hsr debugfs directory [ 41.237645][ T9] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 41.356513][ T48] Bluetooth: hci0: command 0x0409 tx timeout [ 43.436342][ T48] Bluetooth: hci0: command 0x041b tx timeout [ 43.637627][ T9] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 43.718099][ T9] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 44.669496][ T4438] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 44.718425][ T4438] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 44.838090][ T4438] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 44.867476][ T4438] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 44.988668][ T4438] 8021q: adding VLAN 0 to HW filter on device bond0 [ 44.992291][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 44.993988][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 44.996868][ T4438] 8021q: adding VLAN 0 to HW filter on device team0 [ 44.999503][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 45.001335][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 45.002829][ T11] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.004187][ T11] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.005825][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 45.060651][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 45.062723][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.064641][ T11] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.065860][ T11] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.070012][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 45.072958][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 45.075837][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 45.078487][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 45.080193][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 45.082873][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 45.084745][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 45.087881][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 45.089442][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 45.092519][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 45.094168][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 45.096967][ T4438] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 45.174115][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 45.175539][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 45.179673][ T4438] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 45.185858][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 45.188824][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 45.194553][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 45.196800][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 45.198381][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 45.199719][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 45.248868][ T4438] device veth0_vlan entered promiscuous mode [ 45.252280][ T4438] device veth1_vlan entered promiscuous mode [ 45.259437][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 45.261074][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 45.262539][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 45.264115][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 45.266743][ T4438] device veth0_macvtap entered promiscuous mode [ 45.269346][ T4438] device veth1_macvtap entered promiscuous mode [ 45.273492][ T4438] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 45.275269][ T4438] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 45.278086][ T4438] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 45.279442][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 45.281052][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 45.282659][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 45.284473][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 45.358496][ T4438] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 45.360293][ T4438] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 45.362431][ T4438] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 45.363701][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 45.365518][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 45.369804][ T4438] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 45.371343][ T4438] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 45.372846][ T4438] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 45.374341][ T4438] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 45.394005][ T39] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 45.397884][ T39] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 45.400134][ T4448] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 45.407214][ T9] device hsr_slave_0 left promiscuous mode [ 45.426962][ T9] device hsr_slave_1 left promiscuous mode [ 45.526299][ T48] Bluetooth: hci0: command 0x040f tx timeout [ 45.536503][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 45.537765][ T9] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 45.539467][ T9] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 45.540747][ T9] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 45.542641][ T9] device bridge_slave_1 left promiscuous mode [ 45.544017][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.587569][ T9] device bridge_slave_0 left promiscuous mode [ 45.588728][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.726675][ T9] device veth1_macvtap left promiscuous mode [ 45.727858][ T9] device veth0_macvtap left promiscuous mode [ 45.728926][ T9] device veth1_vlan left promiscuous mode [ 45.729994][ T9] device veth0_vlan left promiscuous mode [ 47.596186][ T48] Bluetooth: hci0: command 0x0419 tx timeout [ 47.947396][ T9] team0 (unregistering): Port device team_slave_1 removed [ 48.127269][ T9] team0 (unregistering): Port device team_slave_0 removed [ 48.306588][ T9] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 48.526777][ T9] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 50.067894][ T9] bond0 (unregistering): Released all slaves [ 50.345660][ T11] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 50.347580][ T11] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 50.349072][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 50.500421][ T4524] loop0: detected capacity change from 0 to 32768 [ 50.514910][ T4524] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 50.516810][ T4524] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 50.527594][ T4524] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms [ 50.530150][ T4465] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 50.531297][ T4465] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 50.542412][ T4465] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 11ms [ 50.544779][ T4465] gfs2: fsid=syz:syz.0: jid=0: Done [ 50.545873][ T4524] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 50.659196][ T4438] ------------[ cut here ]------------ [ 50.660287][ T4438] WARNING: CPU: 0 PID: 4438 at include/linux/backing-dev.h:247 __folio_mark_dirty+0x8b8/0xce0 [ 50.661994][ T4438] Modules linked in: [ 50.662609][ T4438] CPU: 0 PID: 4438 Comm: syz-executor Not tainted syzkaller #0 [ 50.663786][ T4438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.665387][ T4438] pstate: 824000c5 (Nzcv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.666848][ T4438] pc : __folio_mark_dirty+0x8b8/0xce0 [ 50.667870][ T4438] lr : __folio_mark_dirty+0x8b8/0xce0 [ 50.668860][ T4438] sp : ffff800021eb7700 [ 50.669624][ T4438] x29: ffff800021eb7710 x28: 1fffff80006cf1c0 x27: 0000000000000000 [ 50.671105][ T4438] x26: dfff800000000000 x25: 0000000000000000 x24: ffff0000c523be98 [ 50.672592][ T4438] x23: 0000000000000001 x22: 0000000000000000 x21: 1fffe00018a477d3 [ 50.674043][ T4438] x20: ffff0000daa1a250 x19: fffffc0003678e00 x18: 1fffe00033c1877e [ 50.675596][ T4438] x17: ffff80001641d000 x16: ffff8000082dbe80 x15: 000000000004ffff [ 50.677127][ T4438] x14: 0000000000000001 x13: 1fffe00018a477d3 x12: 0000000000000000 [ 50.678671][ T4438] x11: ff008000087196b8 x10: 0000000000000000 x9 : ffff8000087196b8 [ 50.680199][ T4438] x8 : ffff0000cc959c00 x7 : 0000000000000000 x6 : 0000000000000000 [ 50.681755][ T4438] x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff800008a6beb8 [ 50.683267][ T4438] x2 : ffff0000ced66060 x1 : 0000000000000000 x0 : 0000000000000000 [ 50.684824][ T4438] Call trace: [ 50.685425][ T4438] __folio_mark_dirty+0x8b8/0xce0 [ 50.686356][ T4438] mark_buffer_dirty+0x2b8/0x5c0 [ 50.687267][ T4438] gfs2_unpin+0x128/0x918 [ 50.688061][ T4438] buf_lo_after_commit+0x144/0x18c [ 50.689011][ T4438] __gfs2_log_flush+0x12e8/0x1bd4 [ 50.689924][ T4438] gfs2_log_flush+0x3c/0x58 [ 50.690769][ T4438] gfs2_kill_sb+0x5c/0xd8 [ 50.691584][ T4438] deactivate_locked_super+0xb4/0x128 [ 50.692581][ T4438] deactivate_super+0xe4/0x104 [ 50.693440][ T4438] cleanup_mnt+0x3a8/0x430 [ 50.694255][ T4438] __cleanup_mnt+0x20/0x30 [ 50.695075][ T4438] task_work_run+0x1f4/0x280 [ 50.695940][ T4438] do_notify_resume+0x20f8/0x2c84 [ 50.696872][ T4438] el0_svc+0x9c/0x12c [ 50.697593][ T4438] el0t_64_sync_handler+0x84/0xf0 [ 50.698497][ T4438] el0t_64_sync+0x18c/0x190 [ 50.699306][ T4438] irq event stamp: 154082 [ 50.700067][ T4438] hardirqs last enabled at (154081): [] folio_memcg_lock+0xe8/0x1f8 [ 50.701790][ T4438] hardirqs last disabled at (154082): [] _raw_spin_lock_irqsave+0xa4/0xb0 [ 50.703541][ T4438] softirqs last enabled at (154076): [] handle_softirqs+0xb1c/0xc90 [ 50.705309][ T4438] softirqs last disabled at (154051): [] __do_softirq+0x14/0x20 [ 50.706888][ T4438] ---[ end trace 0000000000000000 ]--- [ 50.710784][ T4438] ------------[ cut here ]------------ [ 50.711740][ T4438] WARNING: CPU: 0 PID: 4438 at include/linux/backing-dev.h:247 __folio_start_writeback+0x8a8/0xa98 [ 50.713513][ T4438] Modules linked in: [ 50.714177][ T4438] CPU: 0 PID: 4438 Comm: syz-executor Tainted: G W syzkaller #0 [ 50.715672][ T4438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.717552][ T4438] pstate: 824000c5 (Nzcv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.719020][ T4438] pc : __folio_start_writeback+0x8a8/0xa98 [ 50.720186][ T4438] lr : __folio_start_writeback+0x8a8/0xa98 [ 50.721329][ T4438] sp : ffff800021eb7180 [ 50.722174][ T4438] x29: ffff800021eb7260 x28: ffff7000043d6e38 x27: 0000000000000000 [ 50.723715][ T4438] x26: ffff0000c523bcf0 x25: 1fffff80006cf1c1 x24: dfff800000000000 [ 50.725323][ T4438] x23: ffff0000daa1a250 x22: ffff800021eb71e0 x21: ffff0000c523be98 [ 50.726805][ T4438] x20: 0000000000000001 x19: fffffc0003678e00 x18: 1fffe00033c1877e [ 50.728379][ T4438] x17: ffff80001641d000 x16: ffff8000082dbe80 x15: 0000000000000000 [ 50.729894][ T4438] x14: 0000000000000001 x13: 1fffff80006cf1c0 x12: 0000000000000000 [ 50.731454][ T4438] x11: ff0080000871bbdc x10: 0000000000000000 x9 : ffff80000871bbdc [ 50.732993][ T4438] x8 : ffff0000cc959c00 x7 : ffff80000871b62c x6 : 0000000000000000 [ 50.734518][ T4438] x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff80000871b668 [ 50.736036][ T4438] x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 [ 50.737538][ T4438] Call trace: [ 50.738135][ T4438] __folio_start_writeback+0x8a8/0xa98 [ 50.739142][ T4438] set_page_writeback+0x5c/0x7c [ 50.740026][ T4438] gfs2_aspace_writepage+0x524/0x6f4 [ 50.741011][ T4438] __gfs2_writepage+0x70/0x184 [ 50.741890][ T4438] write_cache_pages+0x760/0xe00 [ 50.742811][ T4438] gfs2_ail1_flush+0x7a8/0x9f0 [ 50.743702][ T4438] empty_ail1_list+0x130/0x214 [ 50.744540][ T4438] __gfs2_log_flush+0x15c8/0x1bd4 [ 50.745434][ T4438] gfs2_log_flush+0x3c/0x58 [ 50.746236][ T4438] gfs2_kill_sb+0x5c/0xd8 [ 50.747025][ T4438] deactivate_locked_super+0xb4/0x128 [ 50.747992][ T4438] deactivate_super+0xe4/0x104 [ 50.748825][ T4438] cleanup_mnt+0x3a8/0x430 [ 50.749608][ T4438] __cleanup_mnt+0x20/0x30 [ 50.750404][ T4438] task_work_run+0x1f4/0x280 [ 50.751230][ T4438] do_notify_resume+0x20f8/0x2c84 [ 50.752153][ T4438] el0_svc+0x9c/0x12c [ 50.752870][ T4438] el0t_64_sync_handler+0x84/0xf0 [ 50.753730][ T4438] el0t_64_sync+0x18c/0x190 [ 50.754508][ T4438] irq event stamp: 154108 [ 50.755257][ T4438] hardirqs last enabled at (154107): [] folio_memcg_lock+0xe8/0x1f8 [ 50.756957][ T4438] hardirqs last disabled at (154108): [] _raw_spin_lock_irqsave+0xa4/0xb0 [ 50.758713][ T4438] softirqs last enabled at (154076): [] handle_softirqs+0xb1c/0xc90 [ 50.760399][ T4438] softirqs last disabled at (154051): [] __do_softirq+0x14/0x20 [ 50.762026][ T4438] ---[ end trace 0000000000000000 ]--- [ 50.764572][ C0] ------------[ cut here ]------------ [ 50.765511][ C0] WARNING: CPU: 0 PID: 15 at include/linux/backing-dev.h:247 __folio_end_writeback+0x7d0/0x9cc [ 50.767293][ C0] Modules linked in: [ 50.767970][ C0] CPU: 0 PID: 15 Comm: ksoftirqd/0 Tainted: G W syzkaller #0 [ 50.769501][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.771269][ C0] pstate: 424000c5 (nZcv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.772638][ C0] pc : __folio_end_writeback+0x7d0/0x9cc [ 50.773648][ C0] lr : __folio_end_writeback+0x7d0/0x9cc [ 50.774645][ C0] sp : ffff80001dc57980 [ 50.775406][ C0] x29: ffff80001dc579a0 x28: 1fffff80006cca81 x27: 1fffff80006cca80 [ 50.776902][ C0] x26: dfff800000000000 x25: 0000000000000000 x24: ffff0000c523bcf0 [ 50.778379][ C0] x23: ffff0000c523be98 x22: ffff0000daa182a0 x21: ffff0000daa182a8 [ 50.779900][ C0] x20: 0000000000000001 x19: fffffc0003665400 x18: 1fffe00033c1877e [ 50.781382][ C0] x17: ffff80001641d000 x16: ffff8000082dbe80 x15: 0000000000000000 [ 50.782869][ C0] x14: 0000000000000003 x13: 1ffff00003b8af22 x12: 0000000000000000 [ 50.784376][ C0] x11: ff0080000871b138 x10: 0000000000000000 x9 : ffff80000871b138 [ 50.785890][ C0] x8 : ffff0000c09b3800 x7 : 0000000000000000 x6 : 0000000000000000 [ 50.787390][ C0] x5 : 0000000000000080 x4 : 0000000000000000 x3 : 0000000000000010 [ 50.788900][ C0] x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 [ 50.790357][ C0] Call trace: [ 50.791007][ C0] __folio_end_writeback+0x7d0/0x9cc [ 50.791985][ C0] folio_end_writeback+0x12c/0x410 [ 50.792925][ C0] end_pag