[ 9.338421][ T3992] eql: remember to turn off Van-Jacobson compression on your slave devices Starting crond: [ 9.370517][ T1621] gvnic 0000:00:00.0 enp0s0: Device link is up. [ 9.378954][ T569] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s0: link becomes ready OK Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.30' (ED25519) to the list of known hosts. 1970/01/01 00:00:31 parsed 1 programs syzkaller login: [ 32.548496][ T4338] cgroup: Unknown subsys name 'net' [ 32.779074][ T4338] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 33.042019][ T4338] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 39.197103][ T1621] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 39.198399][ T1621] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 39.201448][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 39.208671][ T39] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 39.209974][ T39] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 39.211361][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 39.401608][ T4387] chnl_net:caif_netlink_parms(): no params data found [ 39.418177][ T4387] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.419353][ T4387] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.420832][ T4387] device bridge_slave_0 entered promiscuous mode [ 39.423103][ T4387] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.424339][ T4387] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.425748][ T4387] device bridge_slave_1 entered promiscuous mode [ 39.432079][ T4387] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 39.434445][ T4387] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 39.441370][ T4387] team0: Port device team_slave_0 added [ 39.443019][ T4387] team0: Port device team_slave_1 added [ 39.448315][ T4387] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 39.449340][ 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. [ 39.453058][ T4387] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 39.455405][ T4387] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 39.456467][ 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. [ 39.460593][ T4387] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 39.529490][ T4387] device hsr_slave_0 entered promiscuous mode [ 39.566789][ T4387] device hsr_slave_1 entered promiscuous mode [ 39.644278][ T4387] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 39.667739][ T4387] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 39.717835][ T4387] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 39.760119][ T4387] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 39.817427][ T4387] 8021q: adding VLAN 0 to HW filter on device bond0 [ 39.821275][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 39.822954][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.825652][ T4387] 8021q: adding VLAN 0 to HW filter on device team0 [ 39.828515][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 39.830181][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 39.831719][ T39] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.832985][ T39] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.834509][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 39.838154][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 39.839824][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 39.841618][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.842856][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.844616][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 39.848003][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 39.850812][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 39.852555][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 39.854021][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 39.858430][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 39.860148][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 39.863375][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 39.865079][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 39.869741][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 39.871368][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 39.873841][ T4387] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 39.921347][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 39.922669][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 39.925865][ T4387] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 39.931998][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 39.933677][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 39.939211][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 39.940667][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 39.942280][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 39.943677][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 39.945836][ T4387] device veth0_vlan entered promiscuous mode [ 39.949733][ T4387] device veth1_vlan entered promiscuous mode [ 39.956380][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 39.959020][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 39.960483][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 39.962130][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 39.973286][ T4387] device veth0_macvtap entered promiscuous mode [ 39.976108][ T4387] device veth1_macvtap entered promiscuous mode [ 39.981542][ T4387] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 39.982816][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 39.984365][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 39.985852][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 39.987926][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 39.990811][ T4387] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 39.992008][ T1621] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 39.993714][ T1621] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 39.996125][ T4387] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.998005][ T4387] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.999459][ T4387] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 40.000822][ T4387] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 40.355754][ T4437] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 40.359623][ T4437] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 40.360967][ T4437] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 40.362431][ T4437] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 40.363789][ T4437] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 40.364949][ T4437] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 1970/01/01 00:00:40 executed programs: 0 [ 40.781578][ T47] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 40.783231][ T47] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 40.784630][ T47] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 40.786104][ T47] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 40.788144][ T47] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 40.789467][ T47] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 41.108444][ T4444] chnl_net:caif_netlink_parms(): no params data found [ 41.132608][ T4444] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.133828][ T4444] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.135353][ T4444] device bridge_slave_0 entered promiscuous mode [ 41.137483][ T4444] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.138699][ T4444] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.140281][ T4444] device bridge_slave_1 entered promiscuous mode [ 41.146395][ T4444] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 41.149390][ T4444] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 41.155371][ T4444] team0: Port device team_slave_0 added [ 41.157207][ T4444] team0: Port device team_slave_1 added [ 41.162015][ T4444] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 41.163216][ T4444] 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. [ 41.168286][ T4444] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 41.256792][ T4444] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 41.258003][ T4444] 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. [ 41.261978][ T4444] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 41.607609][ T4444] device hsr_slave_0 entered promiscuous mode [ 41.656708][ T4444] device hsr_slave_1 entered promiscuous mode [ 41.696597][ T4444] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 41.697987][ T4444] Cannot create hsr debugfs directory [ 41.787573][ T4444] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 42.796850][ T47] Bluetooth: hci0: command 0x0409 tx timeout [ 44.886529][ T47] Bluetooth: hci0: command 0x041b tx timeout [ 45.117960][ T4444] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 45.877819][ T4444] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 45.968225][ T4444] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 46.221299][ T4444] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 46.309234][ T4444] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 46.438645][ T4444] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 46.518493][ T4444] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 46.621581][ T4444] 8021q: adding VLAN 0 to HW filter on device bond0 [ 46.624933][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 46.626585][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 46.629170][ T4444] 8021q: adding VLAN 0 to HW filter on device team0 [ 46.631416][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 46.633013][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 46.634533][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.635745][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.637600][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 46.640200][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 46.641822][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 46.643298][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.644502][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.649496][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 46.653273][ T569] device hsr_slave_0 left promiscuous mode [ 46.717985][ T569] device hsr_slave_1 left promiscuous mode [ 46.816602][ T569] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 46.817793][ T569] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 46.819395][ T569] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 46.820677][ T569] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 46.822071][ T569] device bridge_slave_1 left promiscuous mode [ 46.823163][ T569] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.867246][ T569] device bridge_slave_0 left promiscuous mode [ 46.868323][ T569] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.956537][ T47] Bluetooth: hci0: command 0x040f tx timeout [ 46.997103][ T569] device veth1_macvtap left promiscuous mode [ 46.998147][ T569] device veth0_macvtap left promiscuous mode [ 46.999187][ T569] device veth1_vlan left promiscuous mode [ 47.000235][ T569] device veth0_vlan left promiscuous mode [ 49.036546][ T47] Bluetooth: hci0: command 0x0419 tx timeout [ 49.187692][ T569] team0 (unregistering): Port device team_slave_1 removed [ 49.387287][ T569] team0 (unregistering): Port device team_slave_0 removed [ 49.547413][ T569] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 49.757370][ T569] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 51.227295][ T569] bond0 (unregistering): Released all slaves [ 51.574414][ T4444] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 51.576343][ T4444] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 51.580969][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 51.582787][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 51.584391][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 51.585974][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 51.587898][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.589446][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.591013][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.592564][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 51.594134][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.595989][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.602036][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.650803][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 51.652094][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 51.655065][ T4444] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.661827][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 51.663399][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 51.669639][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 51.671135][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 51.672767][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 51.674233][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 51.676324][ T4444] device veth0_vlan entered promiscuous mode [ 51.679824][ T4444] device veth1_vlan entered promiscuous mode [ 51.686480][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 51.689934][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 51.692122][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 51.693575][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 51.695885][ T4444] device veth0_macvtap entered promiscuous mode [ 51.698543][ T4444] device veth1_macvtap entered promiscuous mode [ 51.703357][ T4444] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 51.704702][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 51.706185][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 51.708145][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 51.709801][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 51.712691][ T4444] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 51.714036][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 51.715722][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 51.721222][ T4444] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.722636][ T4444] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.723975][ T4444] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.725513][ T4444] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.746150][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 51.749773][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 51.751506][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 51.757519][ T1621] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 51.758786][ T1621] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 51.760009][ T1621] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 51.909001][ T4462] loop0: detected capacity change from 0 to 32768 [ 51.925788][ T4462] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 51.927331][ T4462] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 51.938428][ T4462] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms [ 51.940955][ T112] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 51.942044][ T112] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 51.959273][ T112] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 17ms [ 51.960909][ T112] gfs2: fsid=syz:syz.0: jid=0: Done [ 51.961948][ T4462] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 52.078230][ T4444] ------------[ cut here ]------------ [ 52.079314][ T4444] WARNING: CPU: 1 PID: 4444 at include/linux/backing-dev.h:247 __folio_mark_dirty+0x8a0/0xcd8 [ 52.080881][ T4444] Modules linked in: [ 52.081487][ T4444] CPU: 1 PID: 4444 Comm: syz-executor Not tainted syzkaller #0 [ 52.082578][ T4444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 52.084208][ T4444] pstate: 824000c5 (Nzcv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.085456][ T4444] pc : __folio_mark_dirty+0x8a0/0xcd8 [ 52.086372][ T4444] lr : __folio_mark_dirty+0x8a0/0xcd8 [ 52.087307][ T4444] sp : ffff800020d876a0 [ 52.087943][ T4444] x29: ffff800020d876c0 x28: 1fffff800066bc48 x27: dfff800000000000 [ 52.089202][ T4444] x26: 0000000000000000 x25: ffff0000c53abe98 x24: 0000000000000001 [ 52.090498][ T4444] x23: 0000000000000000 x22: fffffc000335e248 x21: 1fffe00018a757d3 [ 52.091786][ T4444] x20: ffff0000d62d2250 x19: fffffc000335e240 x18: ffff800011babf60 [ 52.093073][ T4444] x17: ffff800018381000 x16: ffff8000082d8944 x15: ffff800017e62000 [ 52.094332][ T4444] x14: 0000000000000001 x13: 1fffe00018a757d3 x12: 0000000000ff0100 [ 52.095593][ T4444] x11: ff0080000870ac38 x10: 0000000000000000 x9 : ffff80000870ac38 [ 52.096914][ T4444] x8 : ffff0000cd7b0000 x7 : 0000000000000000 x6 : 0000000000000000 [ 52.098166][ T4444] x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff800008a595a0 [ 52.099496][ T4444] x2 : ffff0000cf198060 x1 : 0000000000000000 x0 : 0000000000000000 [ 52.100806][ T4444] Call trace: [ 52.101302][ T4444] __folio_mark_dirty+0x8a0/0xcd8 [ 52.102250][ T4444] mark_buffer_dirty+0x2b8/0x5c0 [ 52.103257][ T4444] gfs2_unpin+0x120/0x8fc [ 52.104158][ T4444] buf_lo_after_commit+0x140/0x188 [ 52.105182][ T4444] __gfs2_log_flush+0x1290/0x1b38 [ 52.106110][ T4444] gfs2_log_flush+0x3c/0x58 [ 52.106883][ T4444] gfs2_kill_sb+0x5c/0xd4 [ 52.107632][ T4444] deactivate_locked_super+0xac/0x120 [ 52.108497][ T4444] deactivate_super+0xe4/0x104 [ 52.109321][ T4444] cleanup_mnt+0x390/0x418 [ 52.110071][ T4444] __cleanup_mnt+0x20/0x30 [ 52.110830][ T4444] task_work_run+0x1ec/0x278 [ 52.111597][ T4444] do_notify_resume+0x1fa0/0x2aa4 [ 52.112380][ T4444] el0_svc+0x98/0x128 [ 52.113025][ T4444] el0t_64_sync_handler+0x84/0xf0 [ 52.113903][ T4444] el0t_64_sync+0x18c/0x190 [ 52.114616][ T4444] irq event stamp: 162390 [ 52.115312][ T4444] hardirqs last enabled at (162389): [] folio_memcg_lock+0xe8/0x1f4 [ 52.116857][ T4444] hardirqs last disabled at (162390): [] _raw_spin_lock_irqsave+0xa4/0xb0 [ 52.118467][ T4444] softirqs last enabled at (162282): [] local_bh_enable+0x10/0x34 [ 52.119966][ T4444] softirqs last disabled at (162280): [] local_bh_disable+0x10/0x34 [ 52.121508][ T4444] ---[ end trace 0000000000000000 ]--- [ 52.176997][ T4444] ------------[ cut here ]------------ [ 52.177869][ T4444] WARNING: CPU: 1 PID: 4444 at include/linux/backing-dev.h:247 __folio_start_writeback+0x88c/0xa7c [ 52.179861][ T4444] Modules linked in: [ 52.180553][ T4444] CPU: 1 PID: 4444 Comm: syz-executor Tainted: G W syzkaller #0 [ 52.181979][ T4444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 52.183538][ T4444] pstate: 824000c5 (Nzcv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.184759][ T4444] pc : __folio_start_writeback+0x88c/0xa7c [ 52.185685][ T4444] lr : __folio_start_writeback+0x88c/0xa7c [ 52.186635][ T4444] sp : ffff800020d87140 [ 52.187341][ T4444] x29: ffff800020d87220 x28: dfff800000000000 x27: 0000000000000000 [ 52.188678][ T4444] x26: ffff7000041b0e30 x25: 0000000000000000 x24: ffff0000d62d2250 [ 52.190035][ T4444] x23: ffff800020d871a0 x22: ffff0000c53abcf0 x21: 0000000000000001 [ 52.191373][ T4444] x20: fffffc000335e248 x19: fffffc000335e240 x18: ffff800011babf60 [ 52.192682][ T4444] x17: ffff800018381000 x16: ffff8000082d8944 x15: 0000000000000000 [ 52.194065][ T4444] x14: 0000000000000001 x13: 1fffff800066bc48 x12: 0000000000ff0100 [ 52.195424][ T4444] x11: ff0080000870d144 x10: 0000000000000000 x9 : ffff80000870d144 [ 52.196724][ T4444] x8 : ffff0000cd7b0000 x7 : ffff80000870cbb0 x6 : 0000000000000000 [ 52.198147][ T4444] x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff80000870cbf0 [ 52.199528][ T4444] x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 [ 52.200876][ T4444] Call trace: [ 52.201442][ T4444] __folio_start_writeback+0x88c/0xa7c [ 52.202456][ T4444] set_page_writeback+0x5c/0x7c [ 52.203356][ T4444] gfs2_aspace_writepage+0x514/0x6dc [ 52.204243][ T4444] __gfs2_writepage+0x70/0x184 [ 52.205042][ T4444] write_cache_pages+0x74c/0xde8 [ 52.205868][ T4444] gfs2_ail1_flush+0x7c4/0xa14 [ 52.206640][ T4444] empty_ail1_list+0x130/0x214 [ 52.207452][ T4444] __gfs2_log_flush+0x1568/0x1b38 [ 52.208247][ T4444] gfs2_log_flush+0x3c/0x58 [ 52.208972][ T4444] gfs2_kill_sb+0x5c/0xd4 [ 52.209674][ T4444] deactivate_locked_super+0xac/0x120 [ 52.210545][ T4444] deactivate_super+0xe4/0x104 [ 52.211378][ T4444] cleanup_mnt+0x390/0x418 [ 52.212100][ T4444] __cleanup_mnt+0x20/0x30 [ 52.212837][ T4444] task_work_run+0x1ec/0x278 [ 52.213553][ T4444] do_notify_resume+0x1fa0/0x2aa4 [ 52.214296][ T4444] el0_svc+0x98/0x128 [ 52.214928][ T4444] el0t_64_sync_handler+0x84/0xf0 [ 52.215776][ T4444] el0t_64_sync+0x18c/0x190 [ 52.216539][ T4444] irq event stamp: 162418 [ 52.217289][ T4444] hardirqs last enabled at (162417): [] folio_memcg_lock+0xe8/0x1f4 [ 52.218928][ T4444] hardirqs last disabled at (162418): [] _raw_spin_lock_irqsave+0xa4/0xb0 [ 52.220639][ T4444] softirqs last enabled at (162282): [] local_bh_enable+0x10/0x34 [ 52.222123][ T4444] softirqs last disabled at (162280): [] local_bh_disable+0x10/0x34 [ 52.223610][ T4444] ---[ end trace 0000000000000000 ]--- [ 52.226126][ C0] ------------[ cut here ]------------ [ 52.227199][ C0] WARNING: CPU: 0 PID: 15 at include/linux/backing-dev.h:247 __folio_end_writeback+0x7d0/0x9cc [ 52.228891][ C0] Modules linked in: [ 52.229523][ C0] CPU: 0 PID: 15 Comm: ksoftirqd/0 Tainted: G W syzkaller #0 [ 52.230935][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 52.232735][ C0] pstate: 424000c5 (nZcv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.234085][ C0] pc : __folio_end_writeback+0x7d0/0x9cc [ 52.234994][ C0] lr : __folio_end_writeback+0x7d0/0x9cc [ 52.235892][ C0] sp : ffff80001ca57970 [ 52.236647][ C0] x29: ffff80001ca57990 x28: dfff800000000000 x27: ffff0000c53abcf0 [ 52.238003][ C0] x26: 0000000000000000 x25: 05ffd20000002052 x24: 1fffff80006622c0 [ 52.239344][ C0] x23: 0000000000000001 x22: ffff0000d62d2798 x21: ffff0000d62d27a0 [ 52.240722][ C0] x20: 0000000000000001 x19: fffffc0003311600 x18: ffff800011babf60 [ 52.241954][ C0] x17: 1fffe00033e9f77e x16: ffff8000082d8944 x15: 0000000000000000 [ 52.243259][ C0] x14: 0000000000000003 x13: 1ffff0000394af20 x12: 0000000000ff0100 [ 52.244614][ C0] x11: ff0080000870c6bc x10: 0000000000000000 x9 : ffff80000870c6bc [ 52.245985][ C0] x8 : ffff0000c09b3800 x7 : 0000000000000000 x6 : 0000000000000000 [ 52.247378][ C0] x5 : 0000000000000080 x4 : 0000000000000000 x3 : 0000000000000010 [ 52.248746][ C0] x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 [ 52.250074][ C0] Call trace: [ 52.250627][ C0] __folio_end_writeback+0x7d0/0x9cc [ 52.251528][ C0] folio_end_writeback+0x12c/0x410 [ 52.252365][ C0] end_page_writeback+0x58/0x74 [ 52.253204][ C0] end_buffer_async_write+0x32c/0x4f4 [ 52.254120][ C0] end_bio_bh_io_sync+0xb0/0x1dc [ 52.254967][ C0] bio_endio+0x750/0x794 [ 52.255696][ C0] blk_update_request+0x49c/0xbec [ 52.256605][ C0] blk_mq_end_request+0x54/0x88 [ 52.257409][ C0] lo_complete_rq+0x1ec/0x250 [ 52.258165][ C0] blk_done_softirq+0x11c/0x168 [ 52.258994][ C0] handle_softirqs+0x318/0xc60 [ 52.259787][ C0] run_ksoftirqd+0x7c/0x2ac [ 52.260491][ C0] smpboot_thread_fn+0x4b0/0x964 [ 52.261266][ C0] kthread+0x250/0x2d8 [ 52.261994][ C0] ret_from_fork+0x10/0x20 [ 52.262719][ C0] irq event stamp: 370443 [ 52.263386][ C0] hardirqs last enabled at (370442): [] folio_memcg_lock+0xe8/0x1f4 [ 52.264977][ C0] hardirqs last disabled at (370443): [] _raw_spin_lock_irqsave+0xa4/0xb0 [ 52.266643][ C0] softirqs last enabled at (370432): [] handle_softirqs+0xaec/0xc60 [ 52.268197][ C0] softirqs last disabled at (370437): [] run_ksoftirqd+0x7c/0x2ac [ 52.269698][ C0] ---[ end trace 0000000000000000 ]---