[ 9.689567][ T3996] eql: remember to turn off Van-Jacobson compression on your slave devices Starting crond: [ 9.721528][ T11] gvnic 0000:00:00.0 enp0s0: Device link is up. [ 9.723234][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s0: link becomes ready OK Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.78' (ED25519) to the list of known hosts. 1970/01/01 00:00:31 parsed 1 programs 1970/01/01 00:00:31 serving rpc on tcp://33863 syzkaller login: [ 32.131109][ T4342] cgroup: Unknown subsys name 'net' [ 32.340390][ T4342] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 32.606026][ T4342] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 38.173266][ T4378] rxe_eth0 speed is unknown, defaulting to 1000 [ 38.174913][ T4378] rxe_eth0 speed is unknown, defaulting to 1000 [ 38.176388][ T4378] rxe_eth0 speed is unknown, defaulting to 1000 [ 38.199045][ T4378] infiniband rxe0: set active [ 38.200237][ T22] rxe_eth0 speed is unknown, defaulting to 1000 [ 38.201428][ T4378] infiniband rxe0: added rxe_eth0 [ 38.217262][ T4378] RDS/IB: rxe0: added [ 38.218270][ T4378] smc: adding ib device rxe0 with port count 1 [ 38.219390][ T4378] smc: ib device rxe0 port 1 has pnetid [ 38.220746][ T22] rxe_eth0 speed is unknown, defaulting to 1000 [ 38.222369][ T4378] rxe_eth0 speed is unknown, defaulting to 1000 [ 38.239180][ T4378] rxe_eth0 speed is unknown, defaulting to 1000 [ 38.255576][ T4378] rxe_eth0 speed is unknown, defaulting to 1000 [ 38.287913][ T4378] rxe_eth0 speed is unknown, defaulting to 1000 [ 38.304372][ T4378] rxe_eth0 speed is unknown, defaulting to 1000 [ 38.320815][ T4378] rxe_eth0 speed is unknown, defaulting to 1000 [ 38.343005][ T4378] rxe_eth0 speed is unknown, defaulting to 1000 [ 38.388059][ T4378] chnl_net:caif_netlink_parms(): no params data found [ 38.404632][ T4378] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.405921][ T4378] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.407497][ T4378] device bridge_slave_0 entered promiscuous mode [ 38.412599][ T4378] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.413893][ T4378] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.415464][ T4378] device bridge_slave_1 entered promiscuous mode [ 38.422304][ T4378] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 38.424817][ T4378] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 38.431314][ T4378] team0: Port device team_slave_0 added [ 38.433510][ T4378] team0: Port device team_slave_1 added [ 38.439155][ T4378] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 38.440317][ T4378] 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. [ 38.444748][ T4378] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 38.447869][ T4378] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 38.449310][ T4378] 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. [ 38.453631][ T4378] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 38.498729][ T4378] device hsr_slave_0 entered promiscuous mode [ 38.537925][ T4378] device hsr_slave_1 entered promiscuous mode [ 38.611695][ T4378] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 38.639269][ T4378] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 38.678913][ T4378] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 38.725887][ T4378] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 38.770951][ T4378] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.772269][ T4378] bridge0: port 2(bridge_slave_1) entered forwarding state [ 38.773704][ T4378] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.774908][ T4378] bridge0: port 1(bridge_slave_0) entered forwarding state [ 38.791484][ T4378] 8021q: adding VLAN 0 to HW filter on device bond0 [ 38.795475][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 38.798640][ T39] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.800821][ T39] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.802764][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 38.806984][ T4378] 8021q: adding VLAN 0 to HW filter on device team0 [ 38.818593][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 38.820287][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.821600][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 38.823956][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 38.825554][ T293] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.826869][ T293] bridge0: port 2(bridge_slave_1) entered forwarding state [ 38.833471][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 38.835355][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 38.838680][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 38.842020][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 38.844784][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 38.847336][ T4378] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 38.908512][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 38.909928][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 38.913139][ T4378] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 38.920170][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 38.933153][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 38.934937][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 38.936513][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 38.939196][ T4378] device veth0_vlan entered promiscuous mode [ 38.942379][ T4378] device veth1_vlan entered promiscuous mode [ 38.950365][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 38.952040][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 38.953919][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 38.956278][ T4378] device veth0_macvtap entered promiscuous mode [ 38.959197][ T4378] device veth1_macvtap entered promiscuous mode [ 38.964385][ T4378] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 38.965713][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 38.969183][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 38.980409][ T4378] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 38.981824][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 38.984794][ T4378] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.986320][ T4378] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.988221][ T4378] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.989780][ T4378] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.090363][ T4427] rxe_eth0 speed is unknown, defaulting to 1000 [ 39.248736][ T4432] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 39.250613][ T4432] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 39.252053][ T4432] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 39.253753][ T4432] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 39.255381][ T4432] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 39.256761][ T4432] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 39.367980][ T4431] rxe_eth0 speed is unknown, defaulting to 1000 [ 39.658631][ T4438] rxe_eth0 speed is unknown, defaulting to 1000 [ 39.696446][ T293] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 39.698016][ T293] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 39.699830][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 39.710084][ T293] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 39.711429][ T293] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 39.712821][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 39.769430][ T4442] rxe_eth0 speed is unknown, defaulting to 1000 [ 39.865605][ T4446] rxe_eth0 speed is unknown, defaulting to 1000 [ 39.946680][ T4451] rxe_eth0 speed is unknown, defaulting to 1000 [ 40.270471][ T11] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 40.375671][ T4458] rxe_eth0 speed is unknown, defaulting to 1000 [ 40.490598][ T4462] rxe_eth0 speed is unknown, defaulting to 1000 1970/01/01 00:00:40 executed programs: 0 [ 40.622128][ T48] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 40.623824][ T48] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 40.625276][ T48] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 40.626885][ T48] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 40.628917][ T48] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 40.630240][ T48] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 40.640641][ T4465] rxe_eth0 speed is unknown, defaulting to 1000 [ 40.690177][ T4465] chnl_net:caif_netlink_parms(): no params data found [ 40.705790][ T4465] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.707176][ T4465] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.709580][ T4465] device bridge_slave_0 entered promiscuous mode [ 40.711910][ T4465] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.713262][ T4465] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.714811][ T4465] device bridge_slave_1 entered promiscuous mode [ 40.721623][ T4465] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 40.724153][ T4465] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 40.731911][ T4465] team0: Port device team_slave_0 added [ 40.733631][ T4465] team0: Port device team_slave_1 added [ 40.738871][ T4465] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 40.740191][ T4465] 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. [ 40.744723][ T4465] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 40.747448][ T4465] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 40.749149][ T4465] 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. [ 40.753555][ T4465] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 40.788764][ T4465] device hsr_slave_0 entered promiscuous mode [ 40.827801][ T4465] device hsr_slave_1 entered promiscuous mode [ 40.877782][ T4465] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 40.879131][ T4465] Cannot create hsr debugfs directory [ 42.198742][ T11] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 42.648086][ T4432] Bluetooth: hci0: command 0x0409 tx timeout [ 44.448475][ T11] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 44.559542][ T11] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 44.728116][ T4432] Bluetooth: hci0: command 0x041b tx timeout [ 45.828610][ T4465] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 45.909806][ T4465] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 45.948719][ T4465] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 45.978506][ T4465] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 46.088361][ T4465] 8021q: adding VLAN 0 to HW filter on device bond0 [ 46.092100][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 46.093770][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 46.096256][ T4465] 8021q: adding VLAN 0 to HW filter on device team0 [ 46.130337][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 46.132181][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 46.133834][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.135229][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.137027][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 46.140900][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 46.142669][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 46.144169][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.145543][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.149586][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 46.152290][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 46.154934][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 46.156785][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.158720][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 46.161287][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 46.162912][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 46.165814][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 46.167443][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 46.171626][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 46.173330][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.175733][ T4465] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 46.275399][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 46.276915][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 46.281191][ T4465] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 46.286645][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 46.288494][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 46.294614][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 46.296286][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 46.299155][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 46.300783][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 46.303152][ T4465] device veth0_vlan entered promiscuous mode [ 46.306180][ T4465] device veth1_vlan entered promiscuous mode [ 46.312479][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 46.314125][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 46.315614][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 46.317405][ T293] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 46.562300][ T4465] device veth0_macvtap entered promiscuous mode [ 46.564945][ T4465] device veth1_macvtap entered promiscuous mode [ 46.569623][ T4465] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 46.571421][ T4465] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 46.573548][ T4465] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 46.574906][ T2388] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 46.576671][ T2388] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 46.579571][ T2388] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 46.581434][ T2388] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 46.584023][ T4465] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 46.585966][ T4465] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 46.588332][ T4465] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 46.589541][ T2388] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 46.591221][ T2388] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 46.593869][ T4465] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.595231][ T4465] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.596586][ T4465] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.598549][ T4465] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.667249][ T2388] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 46.669960][ T2388] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 46.671802][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 46.677183][ T2388] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 46.680161][ T2388] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 46.681554][ T2388] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 46.807922][ T4432] Bluetooth: hci0: command 0x040f tx timeout [ 46.858932][ T4529] loop0: detected capacity change from 0 to 32768 [ 46.873010][ T4529] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 46.874638][ T4529] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 46.884188][ T4529] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 46.886860][ T4417] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 46.888305][ T4417] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 46.900437][ T4417] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 12ms [ 46.902598][ T4417] gfs2: fsid=syz:syz.0: jid=0: Done [ 46.903736][ T4529] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 47.007187][ T4529] gfs2: fsid=syz:syz.0: found 1 quota changes [ 47.021375][ T4465] ------------[ cut here ]------------ [ 47.022482][ T4465] WARNING: CPU: 0 PID: 4465 at include/linux/backing-dev.h:247 __folio_mark_dirty+0x8b8/0xce0 [ 47.024389][ T4465] Modules linked in: [ 47.025119][ T4465] CPU: 0 PID: 4465 Comm: syz-executor Not tainted syzkaller #0 [ 47.026472][ T4465] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.028316][ T4465] pstate: 824000c5 (Nzcv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.029755][ T4465] pc : __folio_mark_dirty+0x8b8/0xce0 [ 47.030777][ T4465] lr : __folio_mark_dirty+0x8b8/0xce0 [ 47.031777][ T4465] sp : ffff800021bc7400 [ 47.032556][ T4465] x29: ffff800021bc7410 x28: 1fffff8000627bd8 x27: 0000000000000000 [ 47.034040][ T4465] x26: dfff800000000000 x25: 0000000000000000 x24: ffff0000c049c998 [ 47.035540][ T4465] x23: 0000000000000001 x22: 0000000000000000 x21: 1fffe00018093933 [ 47.037053][ T4465] x20: ffff0000eddc2250 x19: fffffc000313dec0 x18: 1fffe00033c2177e [ 47.038588][ T4465] x17: ffff8000163dd000 x16: ffff8000082dce18 x15: 000000000004ffff [ 47.040140][ T4465] x14: 0000000000000001 x13: 1fffe00018093933 x12: 0000000000000000 [ 47.041696][ T4465] x11: ff0080000871c3e0 x10: 0000000000000000 x9 : ffff80000871c3e0 [ 47.043226][ T4465] x8 : ffff0000db691c00 x7 : ffff80000871bb6c x6 : 0000000000000000 [ 47.044768][ T4465] x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff800008a702d4 [ 47.046317][ T4465] x2 : ffff0000cec00060 x1 : 0000000000000000 x0 : 0000000000000000 [ 47.047851][ T4465] Call trace: [ 47.048486][ T4465] __folio_mark_dirty+0x8b8/0xce0 [ 47.049422][ T4465] mark_buffer_dirty+0x2b8/0x5c0 [ 47.050363][ T4465] gfs2_unpin+0x128/0x918 [ 47.051157][ T4465] buf_lo_after_commit+0x144/0x18c [ 47.052116][ T4465] __gfs2_log_flush+0x12e8/0x1bd4 [ 47.053050][ T4465] gfs2_log_flush+0x3c/0x58 [ 47.053886][ T4465] do_sync+0x844/0xa68 [ 47.054650][ T4465] gfs2_quota_sync+0x2cc/0x4e8 [ 47.055527][ T4465] gfs2_sync_fs+0x50/0xc8 [ 47.056343][ T4465] sync_filesystem+0xe8/0x218 [ 47.057237][ T4465] generic_shutdown_super+0x74/0x32c [ 47.058240][ T4465] kill_block_super+0x78/0xe0 [ 47.059121][ T4465] gfs2_kill_sb+0xc4/0xd8 [ 47.059939][ T4465] deactivate_locked_super+0xb4/0x128 [ 47.060903][ T4465] deactivate_super+0xe4/0x104 [ 47.061780][ T4465] cleanup_mnt+0x3a8/0x430 [ 47.062597][ T4465] __cleanup_mnt+0x20/0x30 [ 47.063410][ T4465] task_work_run+0x1f4/0x280 [ 47.064235][ T4465] do_notify_resume+0x20f8/0x2c84 [ 47.065149][ T4465] el0_svc+0x9c/0x12c [ 47.065873][ T4465] el0t_64_sync_handler+0x84/0xf0 [ 47.066793][ T4465] el0t_64_sync+0x18c/0x190 [ 47.067625][ T4465] irq event stamp: 157330 [ 47.068418][ T4465] hardirqs last enabled at (157329): [] folio_memcg_lock+0xe8/0x1f8 [ 47.070151][ T4465] hardirqs last disabled at (157330): [] _raw_spin_lock_irqsave+0xa4/0xb0 [ 47.071989][ T4465] softirqs last enabled at (156934): [] local_bh_enable+0x10/0x34 [ 47.073739][ T4465] softirqs last disabled at (156932): [] local_bh_disable+0x10/0x34 [ 47.075494][ T4465] ---[ end trace 0000000000000000 ]--- [ 47.139046][ T2388] ------------[ cut here ]------------ [ 47.140182][ T2388] WARNING: CPU: 1 PID: 2388 at include/linux/backing-dev.h:247 __folio_start_writeback+0x8a8/0xa98 [ 47.142157][ T2388] Modules linked in: [ 47.142881][ T2388] CPU: 1 PID: 2388 Comm: kworker/u4:4 Tainted: G W syzkaller #0 [ 47.144554][ T2388] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.146358][ T2388] Workqueue: writeback wb_workfn (flush-7:0) [ 47.147456][ T2388] pstate: 824000c5 (Nzcv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.149024][ T2388] pc : __folio_start_writeback+0x8a8/0xa98 [ 47.150195][ T2388] lr : __folio_start_writeback+0x8a8/0xa98 [ 47.151345][ T2388] sp : ffff800027e56d20 [ 47.152116][ T2388] x29: ffff800027e56e00 x28: ffff700004fcadac x27: 0000000000000000 [ 47.153616][ T2388] x26: ffff0000c049c7f0 x25: 1fffff800076fec9 x24: dfff800000000000 [ 47.155131][ T2388] x23: ffff0000eddc2ce0 x22: ffff800027e56d80 x21: ffff0000c049c998 [ 47.156641][ T2388] x20: 0000000000000001 x19: fffffc0003b7f640 x18: 1fffe00033c2597e [ 47.158144][ T2388] x17: ffff8000163dd000 x16: ffff8000082dce18 x15: 000000000004ffff [ 47.159593][ T2388] x14: 0000000000000001 x13: 1fffff800076fec8 x12: 0000000000000000 [ 47.161100][ T2388] x11: ff0080000871e904 x10: 0000000000000000 x9 : ffff80000871e904 [ 47.162669][ T2388] x8 : ffff0000d2413800 x7 : 0000000000000000 x6 : 0000000000000000 [ 47.164205][ T2388] x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff80000871e390 [ 47.165722][ T2388] x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 [ 47.167277][ T2388] Call trace: [ 47.167911][ T2388] __folio_start_writeback+0x8a8/0xa98 [ 47.168952][ T2388] set_page_writeback+0x5c/0x7c [ 47.169866][ T2388] gfs2_aspace_writepage+0x524/0x6f4 [ 47.170844][ T2388] __writepage+0x70/0x184 [ 47.171656][ T2388] write_cache_pages+0x760/0xe00 [ 47.172546][ T2388] do_writepages+0x32c/0x50c [ 47.173391][ T2388] filemap_fdatawrite_wbc+0x124/0x174 [ 47.174374][ T2388] filemap_fdatawrite+0xd0/0x12c [ 47.175287][ T2388] gfs2_write_inode+0x234/0x33c [ 47.176191][ T2388] __writeback_single_inode+0x5e0/0x157c [ 47.177387][ T2388] writeback_sb_inodes+0x870/0x1470 [ 47.178496][ T2388] wb_writeback+0x40c/0xfdc [ 47.179436][ T2388] wb_workfn+0x360/0xe18 [ 47.180290][ T2388] process_one_work+0x7e4/0x13bc [ 47.181271][ T2388] worker_thread+0x8cc/0xfe8 [ 47.182190][ T2388] kthread+0x254/0x2e0 [ 47.183003][ T2388] ret_from_fork+0x10/0x20 [ 47.183882][ T2388] irq event stamp: 341980 [ 47.184712][ T2388] hardirqs last enabled at (341979): [] folio_memcg_lock+0xe8/0x1f8 [ 47.186517][ T2388] hardirqs last disabled at (341980): [] _raw_spin_lock_irqsave+0xa4/0xb0 [ 47.188344][ T2388] softirqs last enabled at (341922): [] macvlan_process_broadcast+0x1d0/0x5e4 [ 47.190206][ T2388] softirqs last disabled at (341920): [] macvlan_process_broadcast+0xf0/0x5e4 [ 47.192072][ T2388] ---[ end trace 0000000000000000 ]--- [ 47.214111][ C1] ------------