Warning: Permanently added '10.128.1.179' (ED25519) to the list of known hosts. 1970/01/01 00:01:06 parsed 1 programs [ 67.640474][ T4472] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 69.630796][ T13] cfg80211: failed to load regulatory.db [ 69.631047][ T2064] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.633342][ T2064] ieee802154 phy1 wpan1: encryption failed: -22 [ 70.466229][ T4501] chnl_net:caif_netlink_parms(): no params data found [ 70.484056][ T4501] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.485278][ T4501] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.486963][ T4501] device bridge_slave_0 entered promiscuous mode [ 70.488929][ T4501] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.490467][ T4501] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.492067][ T4501] device bridge_slave_1 entered promiscuous mode [ 70.499642][ T4501] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.502058][ T4501] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.509660][ T4501] team0: Port device team_slave_0 added [ 70.511507][ T4501] team0: Port device team_slave_1 added [ 70.518044][ T4501] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.519168][ T4501] 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. [ 70.523888][ T4501] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.527551][ T4501] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.528593][ T4501] 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. [ 70.533293][ T4501] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.600641][ T4501] device hsr_slave_0 entered promiscuous mode [ 70.649679][ T4501] device hsr_slave_1 entered promiscuous mode [ 71.309147][ T4501] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 71.360670][ T4501] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 71.431955][ T4501] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 71.480671][ T4501] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 71.566533][ T4501] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.572449][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 71.573936][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.576241][ T4501] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.579849][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 71.581607][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.583230][ T1871] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.584380][ T1871] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.586055][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 71.587577][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.588959][ T1871] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.590330][ T1871] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.593033][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 71.604598][ T4501] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 71.606337][ T4501] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 71.610887][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 71.612563][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 71.614186][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 71.616330][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 71.617966][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 71.621845][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 71.623450][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 71.624998][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.626841][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 71.628387][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 71.631672][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 71.633252][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 71.668371][ T4501] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.670350][ T264] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 71.671732][ T264] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 71.680692][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 71.683020][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 71.693154][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 71.694692][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 71.696304][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 71.697702][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 71.702194][ T4501] device veth0_vlan entered promiscuous mode [ 71.706618][ T4501] device veth1_vlan entered promiscuous mode [ 71.714488][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 71.715828][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 71.717227][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 71.718780][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 71.723250][ T4501] device veth0_macvtap entered promiscuous mode [ 71.725692][ T4501] device veth1_macvtap entered promiscuous mode [ 71.732400][ T4501] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 71.733603][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 71.735158][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 71.736598][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 71.738107][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 71.747090][ T4501] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 71.749110][ T264] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 71.751424][ T264] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 71.754150][ T4501] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.755516][ T4501] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.756975][ T4501] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.758391][ T4501] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.952599][ T264] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.953945][ T264] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.962933][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 71.965951][ T264] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.967247][ T264] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.968552][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:12 executed programs: 0 [ 72.654097][ T4728] chnl_net:caif_netlink_parms(): no params data found [ 72.683985][ T4728] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.685329][ T4728] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.686871][ T4728] device bridge_slave_0 entered promiscuous mode [ 72.688923][ T4728] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.691527][ T4728] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.693151][ T4728] device bridge_slave_1 entered promiscuous mode [ 72.701908][ T4728] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.704547][ T4728] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.714447][ T4728] team0: Port device team_slave_0 added [ 72.716468][ T4728] team0: Port device team_slave_1 added [ 72.723868][ T4728] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 72.724952][ T4728] 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. [ 72.729302][ T4728] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 72.733253][ T4728] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 72.734333][ T4728] 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. [ 72.738738][ T4728] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 72.792210][ T4728] device hsr_slave_0 entered promiscuous mode [ 72.851031][ T4728] device hsr_slave_1 entered promiscuous mode [ 72.879646][ T4728] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 72.880912][ T4728] Cannot create hsr debugfs directory [ 72.911175][ T4728] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.669571][ T4149] Bluetooth: hci0: command 0x0409 tx timeout [ 75.643486][ T4728] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.739935][ T4171] Bluetooth: hci0: command 0x041b tx timeout [ 77.392683][ T4728] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.443706][ T4728] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.593135][ T4728] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 77.650896][ T4728] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 77.710847][ T4728] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 77.760747][ T4728] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 77.821267][ T4728] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.825226][ T264] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 77.826639][ T264] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.829157][ T4728] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.831773][ T264] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 77.833379][ T264] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.834829][ T264] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.835988][ T264] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.837392][ T264] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 77.840373][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 77.842103][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.843667][ T352] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.844788][ T352] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.847097][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 77.849893][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 77.852595][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 77.854628][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.856225][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 77.859224][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 77.862286][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.865105][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 77.866596][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 77.869134][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 77.871169][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.873522][ T4728] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.915534][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 77.916876][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 77.921242][ T4728] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.926986][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 77.928782][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 77.935861][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 77.937515][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 77.939242][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 77.941324][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 77.943637][ T4728] device veth0_vlan entered promiscuous mode [ 77.960153][ T4728] device veth1_vlan entered promiscuous mode [ 77.966919][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.968535][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 77.970484][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 77.971972][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 77.974948][ T4728] device veth0_macvtap entered promiscuous mode [ 77.977287][ T4728] device veth1_macvtap entered promiscuous mode [ 77.982402][ T4728] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 77.984124][ T4728] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 77.986357][ T4728] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.987631][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 77.989242][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 77.991271][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 77.992920][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 77.995435][ T4728] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 77.997112][ T4728] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 77.999241][ T4728] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 78.001697][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 78.003352][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 78.006067][ T4728] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.007511][ T4728] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.008908][ T4728] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.011029][ T4728] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.033410][ T352] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.034831][ T352] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.036229][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 78.044325][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.045698][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.046965][ T1871] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:18 executed programs: 2 [ 78.164625][ T4906] loop0: detected capacity change from 0 to 32768 [ 78.238973][ T4728] BUG: Bad page state in process syz-executor pfn:107806 [ 78.240853][ T4728] page:000000004d4bbc72 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x107806 [ 78.242535][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 78.244149][ T4728] raw: 05ffc00000002006 fffffc00036a7108 ffff80001f0e75c0 0000000000000000 [ 78.245685][ T4728] raw: 0000000000000004 ffff0000e9042000 00000000ffffffff 0000000000000000 [ 78.247125][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 78.248397][ T4728] Modules linked in: [ 78.249054][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Not tainted syzkaller #0 [ 78.250362][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 78.252185][ T4728] Call trace: [ 78.252690][ T4728] dump_backtrace+0x0/0x458 [ 78.253444][ T4728] show_stack+0x2c/0x3c [ 78.254180][ T4728] __dump_stack+0x30/0x40 [ 78.254935][ T4728] dump_stack_lvl+0xf4/0x15c [ 78.255680][ T4728] dump_stack+0x1c/0x5c [ 78.256314][ T4728] bad_page+0x188/0x1a8 [ 78.257005][ T4728] check_free_page_bad+0xf4/0x16c [ 78.257783][ T4728] free_unref_page_prepare+0x738/0xa84 [ 78.258659][ T4728] free_unref_page_list+0xdc/0x730 [ 78.259464][ T4728] release_pages+0x13bc/0x16dc [ 78.260181][ T4728] __pagevec_release+0x84/0xf8 [ 78.260957][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 78.261923][ T4728] truncate_inode_pages+0x2c/0x3c [ 78.262816][ T4728] dbUnmount+0xf4/0x168 [ 78.263509][ T4728] jfs_umount+0x1c4/0x328 [ 78.264196][ T4728] jfs_put_super+0x90/0x188 [ 78.264913][ T4728] generic_shutdown_super+0x130/0x2f0 [ 78.265771][ T4728] kill_block_super+0x70/0xdc [ 78.266576][ T4728] deactivate_locked_super+0xb8/0x134 [ 78.267415][ T4728] deactivate_super+0xf0/0x110 [ 78.268174][ T4728] cleanup_mnt+0x3b8/0x46c [ 78.268912][ T4728] __cleanup_mnt+0x20/0x30 [ 78.269682][ T4728] task_work_run+0x12c/0x1d8 [ 78.270455][ T4728] do_notify_resume+0x2450/0x309c [ 78.271331][ T4728] el0_svc+0xf0/0x1d0 [ 78.272001][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 78.272838][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 78.274674][ T4728] Disabling lock debugging due to kernel taint [ 78.275570][ T4728] BUG: Bad page state in process syz-executor pfn:11a9c4 [ 78.276707][ T4728] page:0000000086d0be9b refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x11a9c4 [ 78.278437][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 78.281069][ T4728] raw: 05ffc00000002006 fffffc00035c34c8 ffff80001f0e75c0 0000000000000000 [ 78.282515][ T4728] raw: 0000000000000003 ffff0000e90420f8 00000000ffffffff 0000000000000000 [ 78.283865][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 78.285182][ T4728] Modules linked in: [ 78.285863][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 78.287270][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 78.288797][ T4728] Call trace: [ 78.289336][ T4728] dump_backtrace+0x0/0x458 [ 78.290098][ T4728] show_stack+0x2c/0x3c [ 78.290786][ T4728] __dump_stack+0x30/0x40 [ 78.291519][ T4728] dump_stack_lvl+0xf4/0x15c [ 78.292358][ T4728] dump_stack+0x1c/0x5c [ 78.293096][ T4728] bad_page+0x188/0x1a8 [ 78.293790][ T4728] check_free_page_bad+0xf4/0x16c [ 78.294626][ T4728] free_unref_page_prepare+0x738/0xa84 [ 78.295522][ T4728] free_unref_page_list+0xdc/0x730 [ 78.296340][ T4728] release_pages+0x13bc/0x16dc [ 78.297145][ T4728] __pagevec_release+0x84/0xf8 [ 78.297945][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 78.298978][ T4728] truncate_inode_pages+0x2c/0x3c [ 78.299950][ T4728] dbUnmount+0xf4/0x168 [ 78.300712][ T4728] jfs_umount+0x1c4/0x328 [ 78.301449][ T4728] jfs_put_super+0x90/0x188 [ 78.302248][ T4728] generic_shutdown_super+0x130/0x2f0 [ 78.303106][ T4728] kill_block_super+0x70/0xdc [ 78.303832][ T4728] deactivate_locked_super+0xb8/0x134 [ 78.304718][ T4728] deactivate_super+0xf0/0x110 [ 78.305477][ T4728] cleanup_mnt+0x3b8/0x46c [ 78.306199][ T4728] __cleanup_mnt+0x20/0x30 [ 78.306985][ T4728] task_work_run+0x12c/0x1d8 [ 78.307772][ T4728] do_notify_resume+0x2450/0x309c [ 78.308509][ T4728] el0_svc+0xf0/0x1d0 [ 78.309140][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 78.309910][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 78.437897][ T4908] loop0: detected capacity change from 0 to 32768 [ 78.494199][ T4728] BUG: Bad page state in process syz-executor pfn:1196aa [ 78.495429][ T4728] page:000000000f6a916d refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x1196aa [ 78.497134][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 78.498612][ T4728] raw: 05ffc00000002006 fffffc00039d0cc8 ffff80001f0e75c0 0000000000000000 [ 78.501035][ T4728] raw: 0000000000000004 ffff0000e74d81f0 00000000ffffffff 0000000000000000 [ 78.502308][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 78.503406][ T4728] Modules linked in: [ 78.504041][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 78.505510][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 78.507293][ T4728] Call trace: [ 78.507853][ T4728] dump_backtrace+0x0/0x458 [ 78.508590][ T4728] show_stack+0x2c/0x3c [ 78.509270][ T4728] __dump_stack+0x30/0x40 [ 78.510009][ T4728] dump_stack_lvl+0xf4/0x15c [ 78.510754][ T4728] dump_stack+0x1c/0x5c [ 78.511435][ T4728] bad_page+0x188/0x1a8 [ 78.512125][ T4728] check_free_page_bad+0xf4/0x16c [ 78.512941][ T4728] free_unref_page_prepare+0x738/0xa84 [ 78.513829][ T4728] free_unref_page_list+0xdc/0x730 [ 78.514643][ T4728] release_pages+0x13bc/0x16dc [ 78.515460][ T4728] __pagevec_release+0x84/0xf8 [ 78.516269][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 78.517247][ T4728] truncate_inode_pages+0x2c/0x3c [ 78.518153][ T4728] dbUnmount+0xf4/0x168 [ 78.518883][ T4728] jfs_umount+0x1c4/0x328 [ 78.519653][ T4728] jfs_put_super+0x90/0x188 [ 78.520427][ T4728] generic_shutdown_super+0x130/0x2f0 [ 78.521287][ T4728] kill_block_super+0x70/0xdc [ 78.522121][ T4728] deactivate_locked_super+0xb8/0x134 [ 78.523049][ T4728] deactivate_super+0xf0/0x110 [ 78.523851][ T4728] cleanup_mnt+0x3b8/0x46c [ 78.524619][ T4728] __cleanup_mnt+0x20/0x30 [ 78.525341][ T4728] task_work_run+0x12c/0x1d8 [ 78.526089][ T4728] do_notify_resume+0x2450/0x309c [ 78.526893][ T4728] el0_svc+0xf0/0x1d0 [ 78.527580][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 78.528470][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 78.530727][ T4728] BUG: Bad page state in process syz-executor pfn:127433 [ 78.531785][ T4728] page:00000000de13a6c4 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x127433 [ 78.533503][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 78.535105][ T4728] raw: 05ffc00000002006 fffffc0003b0d448 ffff80001f0e75c0 0000000000000000 [ 78.536649][ T4728] raw: 0000000000000003 ffff0000e74d82e8 00000000ffffffff 0000000000000000 [ 78.538004][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 78.539128][ T4728] Modules linked in: [ 78.540065][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 78.541561][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 78.543368][ T4728] Call trace: [ 78.543915][ T4728] dump_backtrace+0x0/0x458 [ 78.544638][ T4728] show_stack+0x2c/0x3c [ 78.545309][ T4728] __dump_stack+0x30/0x40 [ 78.546039][ T4728] dump_stack_lvl+0xf4/0x15c [ 78.546832][ T4728] dump_stack+0x1c/0x5c [ 78.547523][ T4728] bad_page+0x188/0x1a8 [ 78.548208][ T4728] check_free_page_bad+0xf4/0x16c [ 78.548996][ T4728] free_unref_page_prepare+0x738/0xa84 [ 78.549898][ T4728] free_unref_page_list+0xdc/0x730 [ 78.550752][ T4728] release_pages+0x13bc/0x16dc [ 78.551538][ T4728] __pagevec_release+0x84/0xf8 [ 78.552334][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 78.553363][ T4728] truncate_inode_pages+0x2c/0x3c [ 78.554213][ T4728] dbUnmount+0xf4/0x168 [ 78.554856][ T4728] jfs_umount+0x1c4/0x328 [ 78.555604][ T4728] jfs_put_super+0x90/0x188 [ 78.556427][ T4728] generic_shutdown_super+0x130/0x2f0 [ 78.557366][ T4728] kill_block_super+0x70/0xdc [ 78.558174][ T4728] deactivate_locked_super+0xb8/0x134 [ 78.559117][ T4728] deactivate_super+0xf0/0x110 [ 78.559892][ T4728] cleanup_mnt+0x3b8/0x46c [ 78.560680][ T4728] __cleanup_mnt+0x20/0x30 [ 78.561385][ T4728] task_work_run+0x12c/0x1d8 [ 78.562113][ T4728] do_notify_resume+0x2450/0x309c [ 78.562975][ T4728] el0_svc+0xf0/0x1d0 [ 78.563605][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 78.564402][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 78.685356][ T4910] loop0: detected capacity change from 0 to 32768 [ 78.755970][ T4728] BUG: Bad page state in process syz-executor pfn:100f3e [ 78.757235][ T4728] page:0000000073c4594a refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x100f3e [ 78.758959][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 78.760926][ T4728] raw: 05ffc00000002006 fffffc00036c0dc8 ffff80001f0e75c0 0000000000000000 [ 78.762257][ T4728] raw: 0000000000000004 ffff0000d88b54d8 00000000ffffffff 0000000000000000 [ 78.763617][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 78.764893][ T4728] Modules linked in: [ 78.765654][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 78.767091][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 78.768573][ T4728] Call trace: [ 78.769066][ T4728] dump_backtrace+0x0/0x458 [ 78.769810][ T4728] show_stack+0x2c/0x3c [ 78.770501][ T4728] __dump_stack+0x30/0x40 [ 78.771311][ T4728] dump_stack_lvl+0xf4/0x15c [ 78.772068][ T4728] dump_stack+0x1c/0x5c [ 78.772764][ T4728] bad_page+0x188/0x1a8 [ 78.773472][ T4728] check_free_page_bad+0xf4/0x16c [ 78.774343][ T4728] free_unref_page_prepare+0x738/0xa84 [ 78.775235][ T4728] free_unref_page_list+0xdc/0x730 [ 78.776045][ T4728] release_pages+0x13bc/0x16dc [ 78.776840][ T4728] __pagevec_release+0x84/0xf8 [ 78.777671][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 78.778660][ T4728] truncate_inode_pages+0x2c/0x3c [ 78.779510][ T4728] dbUnmount+0xf4/0x168 [ 78.780182][ T4728] jfs_umount+0x1c4/0x328 [ 78.780951][ T4728] jfs_put_super+0x90/0x188 [ 78.781701][ T4728] generic_shutdown_super+0x130/0x2f0 [ 78.782582][ T4728] kill_block_super+0x70/0xdc [ 78.783369][ T4728] deactivate_locked_super+0xb8/0x134 [ 78.784350][ T4728] deactivate_super+0xf0/0x110 [ 78.785174][ T4728] cleanup_mnt+0x3b8/0x46c [ 78.785945][ T4728] __cleanup_mnt+0x20/0x30 [ 78.786670][ T4728] task_work_run+0x12c/0x1d8 [ 78.787387][ T4728] do_notify_resume+0x2450/0x309c [ 78.788245][ T4728] el0_svc+0xf0/0x1d0 [ 78.788879][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 78.789688][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 78.790526][ T4728] BUG: Bad page state in process syz-executor pfn:11b037 [ 78.791608][ T4728] page:00000000c30b0040 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x11b037 [ 78.793237][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 78.794767][ T4728] raw: 05ffc00000002006 fffffc0003a4af88 ffff80001f0e75c0 0000000000000000 [ 78.796198][ T4728] raw: 0000000000000003 ffff0000d88b55d0 00000000ffffffff 0000000000000000 [ 78.797645][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 78.798894][ T4728] Modules linked in: [ 78.800526][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 78.801948][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 78.803757][ T4728] Call trace: [ 78.804211][ T4728] dump_backtrace+0x0/0x458 [ 78.804920][ T4728] show_stack+0x2c/0x3c [ 78.805550][ T4728] __dump_stack+0x30/0x40 [ 78.806192][ T4728] dump_stack_lvl+0xf4/0x15c [ 78.806912][ T4728] dump_stack+0x1c/0x5c [ 78.807522][ T4728] bad_page+0x188/0x1a8 [ 78.808141][ T4728] check_free_page_bad+0xf4/0x16c [ 78.808921][ T4728] free_unref_page_prepare+0x738/0xa84 [ 78.809868][ T4728] free_unref_page_list+0xdc/0x730 [ 78.810724][ T4728] release_pages+0x13bc/0x16dc [ 78.811502][ T4728] __pagevec_release+0x84/0xf8 [ 78.812263][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 78.813210][ T4728] truncate_inode_pages+0x2c/0x3c [ 78.814067][ T4728] dbUnmount+0xf4/0x168 [ 78.814810][ T4728] jfs_umount+0x1c4/0x328 [ 78.815551][ T4728] jfs_put_super+0x90/0x188 [ 78.816278][ T4728] generic_shutdown_super+0x130/0x2f0 [ 78.817146][ T4728] kill_block_super+0x70/0xdc [ 78.817966][ T4728] deactivate_locked_super+0xb8/0x134 [ 78.818803][ T4728] deactivate_super+0xf0/0x110 [ 78.819578][ T4728] cleanup_mnt+0x3b8/0x46c [ 78.820340][ T4728] __cleanup_mnt+0x20/0x30 [ 78.821102][ T4728] task_work_run+0x12c/0x1d8 [ 78.821885][ T4728] do_notify_resume+0x2450/0x309c [ 78.822740][ T4728] el0_svc+0xf0/0x1d0 [ 78.823446][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 78.824284][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 78.829683][ T4134] Bluetooth: hci0: command 0x040f tx timeout [ 78.946537][ T4912] loop0: detected capacity change from 0 to 32768 [ 79.057852][ T4728] BUG: Bad page state in process syz-executor pfn:12b728 [ 79.059031][ T4728] page:000000000aeb24c9 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x12b728 [ 79.063105][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 79.064623][ T4728] raw: 05ffc00000002006 fffffc00032cec88 ffff80001f0e75c0 0000000000000000 [ 79.066058][ T4728] raw: 0000000000000004 ffff0000d6f6d6c8 00000000ffffffff 0000000000000000 [ 79.067427][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 79.068666][ T4728] Modules linked in: [ 79.069373][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 79.070874][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 79.072582][ T4728] Call trace: [ 79.073103][ T4728] dump_backtrace+0x0/0x458 [ 79.073854][ T4728] show_stack+0x2c/0x3c [ 79.074555][ T4728] __dump_stack+0x30/0x40 [ 79.075251][ T4728] dump_stack_lvl+0xf4/0x15c [ 79.076014][ T4728] dump_stack+0x1c/0x5c [ 79.076718][ T4728] bad_page+0x188/0x1a8 [ 79.077418][ T4728] check_free_page_bad+0xf4/0x16c [ 79.078259][ T4728] free_unref_page_prepare+0x738/0xa84 [ 79.079169][ T4728] free_unref_page_list+0xdc/0x730 [ 79.080019][ T4728] release_pages+0x13bc/0x16dc [ 79.080796][ T4728] __pagevec_release+0x84/0xf8 [ 79.081572][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 79.082487][ T4728] truncate_inode_pages+0x2c/0x3c [ 79.083264][ T4728] dbUnmount+0xf4/0x168 [ 79.083947][ T4728] jfs_umount+0x1c4/0x328 [ 79.084625][ T4728] jfs_put_super+0x90/0x188 [ 79.085351][ T4728] generic_shutdown_super+0x130/0x2f0 [ 79.086214][ T4728] kill_block_super+0x70/0xdc [ 79.087008][ T4728] deactivate_locked_super+0xb8/0x134 [ 79.087878][ T4728] deactivate_super+0xf0/0x110 [ 79.088653][ T4728] cleanup_mnt+0x3b8/0x46c [ 79.089438][ T4728] __cleanup_mnt+0x20/0x30 [ 79.090178][ T4728] task_work_run+0x12c/0x1d8 [ 79.090973][ T4728] do_notify_resume+0x2450/0x309c [ 79.091756][ T4728] el0_svc+0xf0/0x1d0 [ 79.092423][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 79.093244][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 79.094344][ T4728] BUG: Bad page state in process syz-executor pfn:10b3b2 [ 79.095409][ T4728] page:000000009e015cbd refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x10b3b2 [ 79.097072][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 79.098596][ T4728] raw: 05ffc00000002006 fffffc0003266688 ffff80001f0e75c0 0000000000000000 [ 79.100811][ T4728] raw: 0000000000000003 ffff0000d6f6d7c0 00000000ffffffff 0000000000000000 [ 79.102174][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 79.103282][ T4728] Modules linked in: [ 79.103941][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 79.105438][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 79.107099][ T4728] Call trace: [ 79.107650][ T4728] dump_backtrace+0x0/0x458 [ 79.108413][ T4728] show_stack+0x2c/0x3c [ 79.109081][ T4728] __dump_stack+0x30/0x40 [ 79.109756][ T4728] dump_stack_lvl+0xf4/0x15c [ 79.110507][ T4728] dump_stack+0x1c/0x5c [ 79.111179][ T4728] bad_page+0x188/0x1a8 [ 79.111861][ T4728] check_free_page_bad+0xf4/0x16c [ 79.112747][ T4728] free_unref_page_prepare+0x738/0xa84 [ 79.113694][ T4728] free_unref_page_list+0xdc/0x730 [ 79.114557][ T4728] release_pages+0x13bc/0x16dc [ 79.115385][ T4728] __pagevec_release+0x84/0xf8 [ 79.116222][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 79.117161][ T4728] truncate_inode_pages+0x2c/0x3c [ 79.118049][ T4728] dbUnmount+0xf4/0x168 [ 79.118764][ T4728] jfs_umount+0x1c4/0x328 [ 79.119505][ T4728] jfs_put_super+0x90/0x188 [ 79.120249][ T4728] generic_shutdown_super+0x130/0x2f0 [ 79.121128][ T4728] kill_block_super+0x70/0xdc [ 79.121944][ T4728] deactivate_locked_super+0xb8/0x134 [ 79.122830][ T4728] deactivate_super+0xf0/0x110 [ 79.123606][ T4728] cleanup_mnt+0x3b8/0x46c [ 79.124315][ T4728] __cleanup_mnt+0x20/0x30 [ 79.124998][ T4728] task_work_run+0x12c/0x1d8 [ 79.125753][ T4728] do_notify_resume+0x2450/0x309c [ 79.126612][ T4728] el0_svc+0xf0/0x1d0 [ 79.127229][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 79.128143][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 79.246343][ T4914] loop0: detected capacity change from 0 to 32768 [ 79.310162][ T4728] BUG: Bad page state in process syz-executor pfn:102e0d [ 79.311302][ T4728] page:000000002bff4b7e refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x102e0d [ 79.313010][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 79.314589][ T4728] raw: 05ffc00000002006 fffffc0003634608 ffff80001f0e75c0 0000000000000000 [ 79.316141][ T4728] raw: 0000000000000004 ffff0000e7768e88 00000000ffffffff 0000000000000000 [ 79.317532][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 79.318661][ T4728] Modules linked in: [ 79.319279][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 79.320730][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 79.322530][ T4728] Call trace: [ 79.323103][ T4728] dump_backtrace+0x0/0x458 [ 79.323898][ T4728] show_stack+0x2c/0x3c [ 79.324661][ T4728] __dump_stack+0x30/0x40 [ 79.325360][ T4728] dump_stack_lvl+0xf4/0x15c [ 79.326133][ T4728] dump_stack+0x1c/0x5c [ 79.326834][ T4728] bad_page+0x188/0x1a8 [ 79.327573][ T4728] check_free_page_bad+0xf4/0x16c [ 79.328467][ T4728] free_unref_page_prepare+0x738/0xa84 [ 79.329437][ T4728] free_unref_page_list+0xdc/0x730 [ 79.330366][ T4728] release_pages+0x13bc/0x16dc [ 79.331183][ T4728] __pagevec_release+0x84/0xf8 [ 79.332013][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 79.333010][ T4728] truncate_inode_pages+0x2c/0x3c [ 79.333794][ T4728] dbUnmount+0xf4/0x168 [ 79.334547][ T4728] jfs_umount+0x1c4/0x328 [ 79.335258][ T4728] jfs_put_super+0x90/0x188 [ 79.336056][ T4728] generic_shutdown_super+0x130/0x2f0 [ 79.336994][ T4728] kill_block_super+0x70/0xdc [ 79.337830][ T4728] deactivate_locked_super+0xb8/0x134 [ 79.338797][ T4728] deactivate_super+0xf0/0x110 [ 79.339607][ T4728] cleanup_mnt+0x3b8/0x46c [ 79.340323][ T4728] __cleanup_mnt+0x20/0x30 [ 79.341069][ T4728] task_work_run+0x12c/0x1d8 [ 79.341846][ T4728] do_notify_resume+0x2450/0x309c [ 79.342697][ T4728] el0_svc+0xf0/0x1d0 [ 79.343413][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 79.344242][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 79.347192][ T4728] BUG: Bad page state in process syz-executor pfn:118d18 [ 79.348866][ T4728] page:0000000076cdfd51 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x118d18 [ 79.351505][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 79.353057][ T4728] raw: 05ffc00000002006 fffffc00035e46c8 ffff80001f0e75c0 0000000000000000 [ 79.354562][ T4728] raw: 0000000000000003 ffff0000d543c000 00000000ffffffff 0000000000000000 [ 79.355987][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 79.357211][ T4728] Modules linked in: [ 79.357817][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 79.359304][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 79.361096][ T4728] Call trace: [ 79.361648][ T4728] dump_backtrace+0x0/0x458 [ 79.362405][ T4728] show_stack+0x2c/0x3c [ 79.363114][ T4728] __dump_stack+0x30/0x40 [ 79.363814][ T4728] dump_stack_lvl+0xf4/0x15c [ 79.364573][ T4728] dump_stack+0x1c/0x5c [ 79.365277][ T4728] bad_page+0x188/0x1a8 [ 79.365963][ T4728] check_free_page_bad+0xf4/0x16c [ 79.366796][ T4728] free_unref_page_prepare+0x738/0xa84 [ 79.367703][ T4728] free_unref_page_list+0xdc/0x730 [ 79.368561][ T4728] release_pages+0x13bc/0x16dc [ 79.369367][ T4728] __pagevec_release+0x84/0xf8 [ 79.370148][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 79.371154][ T4728] truncate_inode_pages+0x2c/0x3c [ 79.372058][ T4728] dbUnmount+0xf4/0x168 [ 79.372719][ T4728] jfs_umount+0x1c4/0x328 [ 79.373400][ T4728] jfs_put_super+0x90/0x188 [ 79.374141][ T4728] generic_shutdown_super+0x130/0x2f0 [ 79.375075][ T4728] kill_block_super+0x70/0xdc [ 79.375831][ T4728] deactivate_locked_super+0xb8/0x134 [ 79.376768][ T4728] deactivate_super+0xf0/0x110 [ 79.377580][ T4728] cleanup_mnt+0x3b8/0x46c [ 79.378379][ T4728] __cleanup_mnt+0x20/0x30 [ 79.379168][ T4728] task_work_run+0x12c/0x1d8 [ 79.379971][ T4728] do_notify_resume+0x2450/0x309c [ 79.380869][ T4728] el0_svc+0xf0/0x1d0 [ 79.381529][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 79.382444][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 79.495460][ T4917] loop0: detected capacity change from 0 to 32768 [ 79.616898][ T4728] BUG: Bad page state in process syz-executor pfn:117915 [ 79.618041][ T4728] page:00000000d1cbf82e refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x117915 [ 79.621665][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 79.623282][ T4728] raw: 05ffc00000002006 fffffc000365a108 ffff80001f0e75c0 0000000000000000 [ 79.624619][ T4728] raw: 0000000000000004 ffff0000ec7b90f8 00000000ffffffff 0000000000000000 [ 79.626117][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 79.627262][ T4728] Modules linked in: [ 79.627930][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 79.629301][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 79.630996][ T4728] Call trace: [ 79.631552][ T4728] dump_backtrace+0x0/0x458 [ 79.632322][ T4728] show_stack+0x2c/0x3c [ 79.632994][ T4728] __dump_stack+0x30/0x40 [ 79.633687][ T4728] dump_stack_lvl+0xf4/0x15c [ 79.634547][ T4728] dump_stack+0x1c/0x5c [ 79.635196][ T4728] bad_page+0x188/0x1a8 [ 79.635976][ T4728] check_free_page_bad+0xf4/0x16c [ 79.636823][ T4728] free_unref_page_prepare+0x738/0xa84 [ 79.637794][ T4728] free_unref_page_list+0xdc/0x730 [ 79.638714][ T4728] release_pages+0x13bc/0x16dc [ 79.639556][ T4728] __pagevec_release+0x84/0xf8 [ 79.640330][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 79.641286][ T4728] truncate_inode_pages+0x2c/0x3c [ 79.642140][ T4728] dbUnmount+0xf4/0x168 [ 79.642785][ T4728] jfs_umount+0x1c4/0x328 [ 79.643472][ T4728] jfs_put_super+0x90/0x188 [ 79.644206][ T4728] generic_shutdown_super+0x130/0x2f0 [ 79.645098][ T4728] kill_block_super+0x70/0xdc [ 79.645862][ T4728] deactivate_locked_super+0xb8/0x134 [ 79.646724][ T4728] deactivate_super+0xf0/0x110 [ 79.647548][ T4728] cleanup_mnt+0x3b8/0x46c [ 79.648246][ T4728] __cleanup_mnt+0x20/0x30 [ 79.648954][ T4728] task_work_run+0x12c/0x1d8 [ 79.649692][ T4728] do_notify_resume+0x2450/0x309c [ 79.650530][ T4728] el0_svc+0xf0/0x1d0 [ 79.651216][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 79.652117][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 79.653416][ T4728] BUG: Bad page state in process syz-executor pfn:119684 [ 79.654419][ T4728] page:00000000c314bc36 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x119684 [ 79.656102][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 79.657801][ T4728] raw: 05ffc00000002006 fffffc000306ab08 ffff80001f0e75c0 0000000000000000 [ 79.659177][ T4728] raw: 0000000000000003 ffff0000ec7b91f0 00000000ffffffff 0000000000000000 [ 79.660819][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 79.662017][ T4728] Modules linked in: [ 79.662702][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 79.664159][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 79.665778][ T4728] Call trace: [ 79.666359][ T4728] dump_backtrace+0x0/0x458 [ 79.667142][ T4728] show_stack+0x2c/0x3c [ 79.667794][ T4728] __dump_stack+0x30/0x40 [ 79.668426][ T4728] dump_stack_lvl+0xf4/0x15c [ 79.669092][ T4728] dump_stack+0x1c/0x5c [ 79.669772][ T4728] bad_page+0x188/0x1a8 [ 79.670472][ T4728] check_free_page_bad+0xf4/0x16c [ 79.671332][ T4728] free_unref_page_prepare+0x738/0xa84 [ 79.672242][ T4728] free_unref_page_list+0xdc/0x730 [ 79.673100][ T4728] release_pages+0x13bc/0x16dc [ 79.673878][ T4728] __pagevec_release+0x84/0xf8 [ 79.674665][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 79.675639][ T4728] truncate_inode_pages+0x2c/0x3c [ 79.676435][ T4728] dbUnmount+0xf4/0x168 [ 79.677182][ T4728] jfs_umount+0x1c4/0x328 [ 79.677921][ T4728] jfs_put_super+0x90/0x188 [ 79.678650][ T4728] generic_shutdown_super+0x130/0x2f0 [ 79.679606][ T4728] kill_block_super+0x70/0xdc [ 79.680406][ T4728] deactivate_locked_super+0xb8/0x134 [ 79.681254][ T4728] deactivate_super+0xf0/0x110 [ 79.682093][ T4728] cleanup_mnt+0x3b8/0x46c [ 79.682887][ T4728] __cleanup_mnt+0x20/0x30 [ 79.683665][ T4728] task_work_run+0x12c/0x1d8 [ 79.684478][ T4728] do_notify_resume+0x2450/0x309c [ 79.685357][ T4728] el0_svc+0xf0/0x1d0 [ 79.685997][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 79.686906][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 79.835886][ T4919] loop0: detected capacity change from 0 to 32768 [ 79.901335][ T4728] BUG: Bad page state in process syz-executor pfn:1274c1 [ 79.902518][ T4728] page:00000000a82382dc refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x1274c1 [ 79.904226][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 79.905936][ T4728] raw: 05ffc00000002006 fffffc000325d8c8 ffff80001f0e75c0 0000000000000000 [ 79.907391][ T4728] raw: 0000000000000004 ffff0000ec6972e8 00000000ffffffff 0000000000000000 [ 79.908813][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 79.910035][ T4728] Modules linked in: [ 79.910630][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 79.912001][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 79.913691][ T4728] Call trace: [ 79.914221][ T4728] dump_backtrace+0x0/0x458 [ 79.915011][ T4728] show_stack+0x2c/0x3c [ 79.915701][ T4728] __dump_stack+0x30/0x40 [ 79.916429][ T4728] dump_stack_lvl+0xf4/0x15c [ 79.917240][ T4728] dump_stack+0x1c/0x5c [ 79.917990][ T4728] bad_page+0x188/0x1a8 [ 79.918571][ T4728] check_free_page_bad+0xf4/0x16c [ 79.919387][ T4728] free_unref_page_prepare+0x738/0xa84 [ 79.920346][ T4728] free_unref_page_list+0xdc/0x730 [ 79.921199][ T4728] release_pages+0x13bc/0x16dc [ 79.921942][ T4728] __pagevec_release+0x84/0xf8 [ 79.922785][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 79.923702][ T4728] truncate_inode_pages+0x2c/0x3c [ 79.924540][ T4728] dbUnmount+0xf4/0x168 [ 79.925215][ T4728] jfs_umount+0x1c4/0x328 [ 79.925955][ T4728] jfs_put_super+0x90/0x188 [ 79.926719][ T4728] generic_shutdown_super+0x130/0x2f0 [ 79.927612][ T4728] kill_block_super+0x70/0xdc [ 79.928412][ T4728] deactivate_locked_super+0xb8/0x134 [ 79.929279][ T4728] deactivate_super+0xf0/0x110 [ 79.930101][ T4728] cleanup_mnt+0x3b8/0x46c [ 79.930828][ T4728] __cleanup_mnt+0x20/0x30 [ 79.931510][ T4728] task_work_run+0x12c/0x1d8 [ 79.932251][ T4728] do_notify_resume+0x2450/0x309c [ 79.933061][ T4728] el0_svc+0xf0/0x1d0 [ 79.933700][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 79.934454][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 79.935760][ T4728] BUG: Bad page state in process syz-executor pfn:109763 [ 79.936905][ T4728] page:0000000009dc3619 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x109763 [ 79.938691][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 79.940663][ T4728] raw: 05ffc00000002006 fffffc000326f1c8 ffff80001f0e75c0 0000000000000000 [ 79.942040][ T4728] raw: 0000000000000003 ffff0000ec6973e0 00000000ffffffff 0000000000000000 [ 79.943498][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 79.944754][ T4728] Modules linked in: [ 79.945439][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 79.946838][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 79.948574][ T4728] Call trace: [ 79.949109][ T4728] dump_backtrace+0x0/0x458 [ 79.949867][ T4728] show_stack+0x2c/0x3c [ 79.950539][ T4728] __dump_stack+0x30/0x40 [ 79.951281][ T4728] dump_stack_lvl+0xf4/0x15c [ 79.952090][ T4728] dump_stack+0x1c/0x5c [ 79.952772][ T4728] bad_page+0x188/0x1a8 [ 79.953439][ T4728] check_free_page_bad+0xf4/0x16c [ 79.954202][ T4728] free_unref_page_prepare+0x738/0xa84 [ 79.955066][ T4728] free_unref_page_list+0xdc/0x730 [ 79.955909][ T4728] release_pages+0x13bc/0x16dc [ 79.956598][ T4728] __pagevec_release+0x84/0xf8 [ 79.957305][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 79.958301][ T4728] truncate_inode_pages+0x2c/0x3c [ 79.959145][ T4728] dbUnmount+0xf4/0x168 [ 79.959845][ T4728] jfs_umount+0x1c4/0x328 [ 79.960580][ T4728] jfs_put_super+0x90/0x188 [ 79.961249][ T4728] generic_shutdown_super+0x130/0x2f0 [ 79.962117][ T4728] kill_block_super+0x70/0xdc [ 79.962865][ T4728] deactivate_locked_super+0xb8/0x134 [ 79.963819][ T4728] deactivate_super+0xf0/0x110 [ 79.964620][ T4728] cleanup_mnt+0x3b8/0x46c [ 79.965416][ T4728] __cleanup_mnt+0x20/0x30 [ 79.966177][ T4728] task_work_run+0x12c/0x1d8 [ 79.966944][ T4728] do_notify_resume+0x2450/0x309c [ 79.967769][ T4728] el0_svc+0xf0/0x1d0 [ 79.968390][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 79.969239][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 80.094734][ T4921] loop0: detected capacity change from 0 to 32768 [ 80.160893][ T4728] BUG: Bad page state in process syz-executor pfn:10b313 [ 80.161987][ T4728] page:0000000069857a5b refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10b313 [ 80.163639][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 80.165347][ T4728] raw: 05ffc00000002006 fffffc0003234388 ffff80001f0e75c0 0000000000000000 [ 80.166777][ T4728] raw: 0000000000000004 ffff0000caed08b8 00000000ffffffff 0000000000000000 [ 80.168131][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 80.169372][ T4728] Modules linked in: [ 80.170367][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 80.171847][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 80.173616][ T4728] Call trace: [ 80.174143][ T4728] dump_backtrace+0x0/0x458 [ 80.174886][ T4728] show_stack+0x2c/0x3c [ 80.175601][ T4728] __dump_stack+0x30/0x40 [ 80.176355][ T4728] dump_stack_lvl+0xf4/0x15c [ 80.177135][ T4728] dump_stack+0x1c/0x5c [ 80.177807][ T4728] bad_page+0x188/0x1a8 [ 80.178451][ T4728] check_free_page_bad+0xf4/0x16c [ 80.179179][ T4728] free_unref_page_prepare+0x738/0xa84 [ 80.180088][ T4728] free_unref_page_list+0xdc/0x730 [ 80.180942][ T4728] release_pages+0x13bc/0x16dc [ 80.181789][ T4728] __pagevec_release+0x84/0xf8 [ 80.182594][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 80.183558][ T4728] truncate_inode_pages+0x2c/0x3c [ 80.184481][ T4728] dbUnmount+0xf4/0x168 [ 80.185202][ T4728] jfs_umount+0x1c4/0x328 [ 80.185899][ T4728] jfs_put_super+0x90/0x188 [ 80.186676][ T4728] generic_shutdown_super+0x130/0x2f0 [ 80.187585][ T4728] kill_block_super+0x70/0xdc [ 80.188331][ T4728] deactivate_locked_super+0xb8/0x134 [ 80.189167][ T4728] deactivate_super+0xf0/0x110 [ 80.189920][ T4728] cleanup_mnt+0x3b8/0x46c [ 80.190615][ T4728] __cleanup_mnt+0x20/0x30 [ 80.191371][ T4728] task_work_run+0x12c/0x1d8 [ 80.192122][ T4728] do_notify_resume+0x2450/0x309c [ 80.192898][ T4728] el0_svc+0xf0/0x1d0 [ 80.193520][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 80.194324][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 80.195904][ T4728] BUG: Bad page state in process syz-executor pfn:108d0e [ 80.197062][ T4728] page:0000000032925666 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x108d0e [ 80.199071][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 80.200868][ T4728] raw: 05ffc00000002006 fffffc000317f288 ffff80001f0e75c0 0000000000000000 [ 80.202270][ T4728] raw: 0000000000000003 ffff0000caed09b0 00000000ffffffff 0000000000000000 [ 80.203727][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 80.204901][ T4728] Modules linked in: [ 80.205564][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 80.207040][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 80.208731][ T4728] Call trace: [ 80.209258][ T4728] dump_backtrace+0x0/0x458 [ 80.210005][ T4728] show_stack+0x2c/0x3c [ 80.210712][ T4728] __dump_stack+0x30/0x40 [ 80.211422][ T4728] dump_stack_lvl+0xf4/0x15c [ 80.212240][ T4728] dump_stack+0x1c/0x5c [ 80.212947][ T4728] bad_page+0x188/0x1a8 [ 80.213605][ T4728] check_free_page_bad+0xf4/0x16c [ 80.214423][ T4728] free_unref_page_prepare+0x738/0xa84 [ 80.215389][ T4728] free_unref_page_list+0xdc/0x730 [ 80.216244][ T4728] release_pages+0x13bc/0x16dc [ 80.217044][ T4728] __pagevec_release+0x84/0xf8 [ 80.217894][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 80.218932][ T4728] truncate_inode_pages+0x2c/0x3c [ 80.219695][ T4728] dbUnmount+0xf4/0x168 [ 80.220367][ T4728] jfs_umount+0x1c4/0x328 [ 80.221124][ T4728] jfs_put_super+0x90/0x188 [ 80.221794][ T4728] generic_shutdown_super+0x130/0x2f0 [ 80.222667][ T4728] kill_block_super+0x70/0xdc [ 80.223419][ T4728] deactivate_locked_super+0xb8/0x134 [ 80.224343][ T4728] deactivate_super+0xf0/0x110 [ 80.225121][ T4728] cleanup_mnt+0x3b8/0x46c [ 80.225801][ T4728] __cleanup_mnt+0x20/0x30 [ 80.226495][ T4728] task_work_run+0x12c/0x1d8 [ 80.227202][ T4728] do_notify_resume+0x2450/0x309c [ 80.228008][ T4728] el0_svc+0xf0/0x1d0 [ 80.228604][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 80.229309][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 80.345397][ T4923] loop0: detected capacity change from 0 to 32768 [ 80.402725][ T4728] BUG: Bad page state in process syz-executor pfn:109cbe [ 80.404006][ T4728] page:00000000958cc7df refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x109cbe [ 80.405583][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 80.407215][ T4728] raw: 05ffc00000002006 fffffc000325de48 ffff80001f0e75c0 0000000000000000 [ 80.408576][ T4728] raw: 0000000000000004 ffff0000ccc0d4d8 00000000ffffffff 0000000000000000 [ 80.414249][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 80.415424][ T4728] Modules linked in: [ 80.416133][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 80.417526][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 80.419190][ T4728] Call trace: [ 80.419715][ T4728] dump_backtrace+0x0/0x458 [ 80.420448][ T4728] show_stack+0x2c/0x3c [ 80.421140][ T4728] __dump_stack+0x30/0x40 [ 80.421811][ T4728] dump_stack_lvl+0xf4/0x15c [ 80.422558][ T4728] dump_stack+0x1c/0x5c [ 80.423228][ T4728] bad_page+0x188/0x1a8 [ 80.423973][ T4728] check_free_page_bad+0xf4/0x16c [ 80.424849][ T4728] free_unref_page_prepare+0x738/0xa84 [ 80.425751][ T4728] free_unref_page_list+0xdc/0x730 [ 80.426486][ T4728] release_pages+0x13bc/0x16dc [ 80.427263][ T4728] __pagevec_release+0x84/0xf8 [ 80.428013][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 80.428991][ T4728] truncate_inode_pages+0x2c/0x3c [ 80.429874][ T4728] dbUnmount+0xf4/0x168 [ 80.430609][ T4728] jfs_umount+0x1c4/0x328 [ 80.431294][ T4728] jfs_put_super+0x90/0x188 [ 80.432057][ T4728] generic_shutdown_super+0x130/0x2f0 [ 80.432928][ T4728] kill_block_super+0x70/0xdc [ 80.433623][ T4728] deactivate_locked_super+0xb8/0x134 [ 80.434535][ T4728] deactivate_super+0xf0/0x110 [ 80.435302][ T4728] cleanup_mnt+0x3b8/0x46c [ 80.436071][ T4728] __cleanup_mnt+0x20/0x30 [ 80.436817][ T4728] task_work_run+0x12c/0x1d8 [ 80.437633][ T4728] do_notify_resume+0x2450/0x309c [ 80.438504][ T4728] el0_svc+0xf0/0x1d0 [ 80.439188][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 80.440148][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 80.441297][ T4728] BUG: Bad page state in process syz-executor pfn:109779 [ 80.442468][ T4728] page:000000001898195e refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x109779 [ 80.444258][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 80.445877][ T4728] raw: 05ffc00000002006 fffffc00036d1f48 ffff80001f0e75c0 0000000000000000 [ 80.447382][ T4728] raw: 0000000000000003 ffff0000ccc0d5d0 00000000ffffffff 0000000000000000 [ 80.448840][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 80.450116][ T4728] Modules linked in: [ 80.450761][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 80.452136][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 80.453614][ T4728] Call trace: [ 80.454095][ T4728] dump_backtrace+0x0/0x458 [ 80.454807][ T4728] show_stack+0x2c/0x3c [ 80.455491][ T4728] __dump_stack+0x30/0x40 [ 80.456227][ T4728] dump_stack_lvl+0xf4/0x15c [ 80.456950][ T4728] dump_stack+0x1c/0x5c [ 80.457590][ T4728] bad_page+0x188/0x1a8 [ 80.458230][ T4728] check_free_page_bad+0xf4/0x16c [ 80.459033][ T4728] free_unref_page_prepare+0x738/0xa84 [ 80.459894][ T4728] free_unref_page_list+0xdc/0x730 [ 80.460690][ T4728] release_pages+0x13bc/0x16dc [ 80.461395][ T4728] __pagevec_release+0x84/0xf8 [ 80.462197][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 80.463192][ T4728] truncate_inode_pages+0x2c/0x3c [ 80.463998][ T4728] dbUnmount+0xf4/0x168 [ 80.464720][ T4728] jfs_umount+0x1c4/0x328 [ 80.465463][ T4728] jfs_put_super+0x90/0x188 [ 80.466231][ T4728] generic_shutdown_super+0x130/0x2f0 [ 80.467090][ T4728] kill_block_super+0x70/0xdc [ 80.467867][ T4728] deactivate_locked_super+0xb8/0x134 [ 80.468779][ T4728] deactivate_super+0xf0/0x110 [ 80.469565][ T4728] cleanup_mnt+0x3b8/0x46c [ 80.470339][ T4728] __cleanup_mnt+0x20/0x30 [ 80.471058][ T4728] task_work_run+0x12c/0x1d8 [ 80.471792][ T4728] do_notify_resume+0x2450/0x309c [ 80.472665][ T4728] el0_svc+0xf0/0x1d0 [ 80.473275][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 80.474116][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 80.579377][ T4925] loop0: detected capacity change from 0 to 32768 [ 80.603742][ T136] device hsr_slave_0 left promiscuous mode [ 80.659708][ T136] device hsr_slave_1 left promiscuous mode [ 80.681353][ T4728] BUG: Bad page state in process syz-executor pfn:1078c1 [ 80.682545][ T4728] page:00000000207acc40 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x1078c1 [ 80.684319][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 80.685850][ T4728] raw: 05ffc00000002006 fffffc0003314288 ffff80001f0e75c0 0000000000000000 [ 80.687380][ T4728] raw: 0000000000000004 ffff0000ce919aa8 00000000ffffffff 0000000000000000 [ 80.688854][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 80.699751][ T4728] Modules linked in: [ 80.700461][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 80.701944][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 80.703475][ T4728] Call trace: [ 80.704044][ T4728] dump_backtrace+0x0/0x458 [ 80.704781][ T4728] show_stack+0x2c/0x3c [ 80.705446][ T4728] __dump_stack+0x30/0x40 [ 80.706144][ T4728] dump_stack_lvl+0xf4/0x15c [ 80.706904][ T4728] dump_stack+0x1c/0x5c [ 80.707600][ T4728] bad_page+0x188/0x1a8 [ 80.708271][ T4728] check_free_page_bad+0xf4/0x16c [ 80.709145][ T4728] free_unref_page_prepare+0x738/0xa84 [ 80.710101][ T4728] free_unref_page_list+0xdc/0x730 [ 80.710996][ T4728] release_pages+0x13bc/0x16dc [ 80.711772][ T4728] __pagevec_release+0x84/0xf8 [ 80.712534][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 80.713444][ T4728] truncate_inode_pages+0x2c/0x3c [ 80.714257][ T4728] dbUnmount+0xf4/0x168 [ 80.714929][ T4728] jfs_umount+0x1c4/0x328 [ 80.715639][ T4728] jfs_put_super+0x90/0x188 [ 80.716389][ T4728] generic_shutdown_super+0x130/0x2f0 [ 80.717287][ T4728] kill_block_super+0x70/0xdc [ 80.718073][ T4728] deactivate_locked_super+0xb8/0x134 [ 80.718952][ T4728] deactivate_super+0xf0/0x110 [ 80.719752][ T4728] cleanup_mnt+0x3b8/0x46c [ 80.720491][ T4728] __cleanup_mnt+0x20/0x30 [ 80.721322][ T4728] task_work_run+0x12c/0x1d8 [ 80.722065][ T4728] do_notify_resume+0x2450/0x309c [ 80.722882][ T4728] el0_svc+0xf0/0x1d0 [ 80.723536][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 80.724402][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 80.725738][ T4728] BUG: Bad page state in process syz-executor pfn:10c50a [ 80.726887][ T4728] page:00000000cd38859d refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x10c50a [ 80.728536][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 80.730390][ T4728] raw: 05ffc00000002006 fffffc00032b0f48 ffff80001f0e75c0 0000000000000000 [ 80.731680][ T4728] raw: 0000000000000003 ffff0000ce919ba0 00000000ffffffff 0000000000000000 [ 80.733163][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 80.734392][ T4728] Modules linked in: [ 80.735046][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 80.736516][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 80.738261][ T4728] Call trace: [ 80.738831][ T4728] dump_backtrace+0x0/0x458 [ 80.739580][ T136] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 80.739601][ T4728] show_stack+0x2c/0x3c [ 80.740899][ T136] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 80.741567][ T4728] __dump_stack+0x30/0x40 [ 80.743416][ T4728] dump_stack_lvl+0xf4/0x15c [ 80.744154][ T4728] dump_stack+0x1c/0x5c [ 80.744881][ T4728] bad_page+0x188/0x1a8 [ 80.745600][ T4728] check_free_page_bad+0xf4/0x16c [ 80.746408][ T4728] free_unref_page_prepare+0x738/0xa84 [ 80.747374][ T4728] free_unref_page_list+0xdc/0x730 [ 80.748218][ T4728] release_pages+0x13bc/0x16dc [ 80.749049][ T4728] __pagevec_release+0x84/0xf8 [ 80.749839][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 80.750823][ T4728] truncate_inode_pages+0x2c/0x3c [ 80.751669][ T4728] dbUnmount+0xf4/0x168 [ 80.752323][ T4728] jfs_umount+0x1c4/0x328 [ 80.753040][ T4728] jfs_put_super+0x90/0x188 [ 80.753774][ T4728] generic_shutdown_super+0x130/0x2f0 [ 80.754645][ T4728] kill_block_super+0x70/0xdc [ 80.755435][ T4728] deactivate_locked_super+0xb8/0x134 [ 80.756366][ T4728] deactivate_super+0xf0/0x110 [ 80.757160][ T4728] cleanup_mnt+0x3b8/0x46c [ 80.757930][ T4728] __cleanup_mnt+0x20/0x30 [ 80.758718][ T4728] task_work_run+0x12c/0x1d8 [ 80.759464][ T4728] do_notify_resume+0x2450/0x309c [ 80.760321][ T4728] el0_svc+0xf0/0x1d0 [ 80.760940][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 80.761773][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 80.763199][ T136] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 80.764337][ T136] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 80.765738][ T136] device bridge_slave_1 left promiscuous mode [ 80.766750][ T136] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.803694][ T136] device bridge_slave_0 left promiscuous mode [ 80.804674][ T136] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.899518][ T4897] Bluetooth: hci0: command 0x0419 tx timeout [ 80.939603][ T136] device veth1_macvtap left promiscuous mode [ 80.940548][ T136] device veth0_macvtap left promiscuous mode [ 80.941543][ T136] device veth1_vlan left promiscuous mode [ 80.942587][ T136] device veth0_vlan left promiscuous mode [ 80.944084][ T4728] BUG: Bad page state in process syz-executor pfn:11715d [ 80.945261][ T4728] page:000000003994cfe2 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11715d [ 80.947075][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 80.948771][ T4728] raw: 05ffc00000002006 fffffc00033ab808 ffff80001f0e75c0 0000000000000000 [ 80.950563][ T4728] raw: 0000000000000004 ffff0000caa376c8 00000000ffffffff 0000000000000000 [ 80.951978][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 80.953183][ T4728] Modules linked in: [ 80.953796][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 80.955220][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 80.956856][ T4728] Call trace: [ 80.957373][ T4728] dump_backtrace+0x0/0x458 [ 80.958074][ T4728] show_stack+0x2c/0x3c [ 80.958767][ T4728] __dump_stack+0x30/0x40 [ 80.959456][ T4728] dump_stack_lvl+0xf4/0x15c [ 80.960275][ T4728] dump_stack+0x1c/0x5c [ 80.960950][ T4728] bad_page+0x188/0x1a8 [ 80.961628][ T4728] check_free_page_bad+0xf4/0x16c [ 80.962475][ T4728] free_unref_page_prepare+0x738/0xa84 [ 80.963467][ T4728] free_unref_page_list+0xdc/0x730 [ 80.964379][ T4728] release_pages+0x13bc/0x16dc [ 80.965229][ T4728] __pagevec_release+0x84/0xf8 [ 80.965981][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 80.966920][ T4728] truncate_inode_pages+0x2c/0x3c [ 80.967795][ T4728] dbUnmount+0xf4/0x168 [ 80.968517][ T4728] jfs_umount+0x1c4/0x328 [ 80.969242][ T4728] jfs_put_super+0x90/0x188 [ 80.970029][ T4728] generic_shutdown_super+0x130/0x2f0 [ 80.970969][ T4728] kill_block_super+0x70/0xdc [ 80.971847][ T4728] deactivate_locked_super+0xb8/0x134 [ 80.972811][ T4728] deactivate_super+0xf0/0x110 [ 80.973647][ T4728] cleanup_mnt+0x3b8/0x46c [ 80.974420][ T4728] __cleanup_mnt+0x20/0x30 [ 80.975219][ T4728] task_work_run+0x12c/0x1d8 [ 80.976034][ T4728] do_notify_resume+0x2450/0x309c [ 80.976842][ T4728] el0_svc+0xf0/0x1d0 [ 80.977498][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 80.978353][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 80.980560][ T4728] BUG: Bad page state in process syz-executor pfn:10eae0 [ 80.981638][ T4728] page:0000000066f72dc0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x10eae0 [ 80.983402][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 80.985067][ T4728] raw: 05ffc00000002006 fffffc00031f0a88 ffff80001f0e75c0 0000000000000000 [ 80.986469][ T4728] raw: 0000000000000003 ffff0000caa377c0 00000000ffffffff 0000000000000000 [ 80.987786][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 80.989034][ T4728] Modules linked in: [ 80.991249][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 80.992716][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 80.994537][ T4728] Call trace: [ 80.995036][ T4728] dump_backtrace+0x0/0x458 [ 80.995902][ T4728] show_stack+0x2c/0x3c [ 80.996588][ T4728] __dump_stack+0x30/0x40 [ 80.997308][ T4728] dump_stack_lvl+0xf4/0x15c [ 80.998046][ T4728] dump_stack+0x1c/0x5c [ 80.998694][ T4728] bad_page+0x188/0x1a8 [ 80.999325][ T4728] check_free_page_bad+0xf4/0x16c [ 81.000223][ T4728] free_unref_page_prepare+0x738/0xa84 [ 81.001155][ T4728] free_unref_page_list+0xdc/0x730 [ 81.001995][ T4728] release_pages+0x13bc/0x16dc [ 81.002878][ T4728] __pagevec_release+0x84/0xf8 [ 81.003640][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 81.004556][ T4728] truncate_inode_pages+0x2c/0x3c [ 81.005484][ T4728] dbUnmount+0xf4/0x168 [ 81.006181][ T4728] jfs_umount+0x1c4/0x328 [ 81.006966][ T4728] jfs_put_super+0x90/0x188 [ 81.007772][ T4728] generic_shutdown_super+0x130/0x2f0 [ 81.008690][ T4728] kill_block_super+0x70/0xdc [ 81.009524][ T4728] deactivate_locked_super+0xb8/0x134 [ 81.010421][ T4728] deactivate_super+0xf0/0x110 [ 81.011243][ T4728] cleanup_mnt+0x3b8/0x46c [ 81.011972][ T4728] __cleanup_mnt+0x20/0x30 [ 81.012662][ T4728] task_work_run+0x12c/0x1d8 [ 81.013512][ T4728] do_notify_resume+0x2450/0x309c [ 81.014382][ T4728] el0_svc+0xf0/0x1d0 [ 81.015067][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 81.015899][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 81.056976][ T136] team0 (unregistering): Port device team_slave_1 removed [ 81.063034][ T136] team0 (unregistering): Port device team_slave_0 removed [ 81.066400][ T136] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 81.092400][ T136] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 81.201929][ T136] bond0 (unregistering): Released all slaves [ 81.208216][ T4728] BUG: Bad page state in process syz-executor pfn:12c657 [ 81.209404][ T4728] page:0000000040be7b99 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x12c657 [ 81.211577][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 81.213159][ T4728] raw: 05ffc00000002006 fffffc000364c948 ffff80001f0e75c0 0000000000000000 [ 81.214597][ T4728] raw: 0000000000000004 ffff0000ec6652e8 00000000ffffffff 0000000000000000 [ 81.216073][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 81.217231][ T4728] Modules linked in: [ 81.217820][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 81.219394][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 81.221061][ T4728] Call trace: [ 81.221596][ T4728] dump_backtrace+0x0/0x458 [ 81.222391][ T4728] show_stack+0x2c/0x3c [ 81.223076][ T4728] __dump_stack+0x30/0x40 [ 81.223764][ T4728] dump_stack_lvl+0xf4/0x15c [ 81.224605][ T4728] dump_stack+0x1c/0x5c [ 81.225281][ T4728] bad_page+0x188/0x1a8 [ 81.225968][ T4728] check_free_page_bad+0xf4/0x16c [ 81.226862][ T4728] free_unref_page_prepare+0x738/0xa84 [ 81.227745][ T4728] free_unref_page_list+0xdc/0x730 [ 81.228588][ T4728] release_pages+0x13bc/0x16dc [ 81.229405][ T4728] __pagevec_release+0x84/0xf8 [ 81.230223][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 81.231220][ T4728] truncate_inode_pages+0x2c/0x3c [ 81.232128][ T4728] dbUnmount+0xf4/0x168 [ 81.232763][ T4728] jfs_umount+0x1c4/0x328 [ 81.233457][ T4728] jfs_put_super+0x90/0x188 [ 81.234159][ T4728] generic_shutdown_super+0x130/0x2f0 [ 81.234992][ T4728] kill_block_super+0x70/0xdc [ 81.235677][ T4728] deactivate_locked_super+0xb8/0x134 [ 81.236475][ T4728] deactivate_super+0xf0/0x110 [ 81.237254][ T4728] cleanup_mnt+0x3b8/0x46c [ 81.237956][ T4728] __cleanup_mnt+0x20/0x30 [ 81.238594][ T4728] task_work_run+0x12c/0x1d8 [ 81.239354][ T4728] do_notify_resume+0x2450/0x309c [ 81.240199][ T4728] el0_svc+0xf0/0x1d0 [ 81.240830][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 81.241628][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 81.243070][ T4728] BUG: Bad page state in process syz-executor pfn:119325 [ 81.244167][ T4728] page:00000000cb293a0a refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x119325 [ 81.245703][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 81.247274][ T4728] raw: 05ffc00000002006 fffffc0003562e08 ffff80001f0e75c0 0000000000000000 [ 81.248676][ T4728] raw: 0000000000000003 ffff0000ec6653e0 00000000ffffffff 0000000000000000 [ 81.250903][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 81.252064][ T4728] Modules linked in: [ 81.252848][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 81.254278][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 81.255827][ T4728] Call trace: [ 81.256386][ T4728] dump_backtrace+0x0/0x458 [ 81.257106][ T4728] show_stack+0x2c/0x3c [ 81.257766][ T4728] __dump_stack+0x30/0x40 [ 81.258461][ T4728] dump_stack_lvl+0xf4/0x15c [ 81.259163][ T4728] dump_stack+0x1c/0x5c [ 81.259789][ T4728] bad_page+0x188/0x1a8 [ 81.260569][ T4728] check_free_page_bad+0xf4/0x16c [ 81.261515][ T4728] free_unref_page_prepare+0x738/0xa84 [ 81.262482][ T4728] free_unref_page_list+0xdc/0x730 [ 81.263423][ T4728] release_pages+0x13bc/0x16dc [ 81.264214][ T4728] __pagevec_release+0x84/0xf8 [ 81.265013][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 81.265968][ T4728] truncate_inode_pages+0x2c/0x3c [ 81.266764][ T4728] dbUnmount+0xf4/0x168 [ 81.267489][ T4728] jfs_umount+0x1c4/0x328 [ 81.268180][ T4728] jfs_put_super+0x90/0x188 [ 81.268926][ T4728] generic_shutdown_super+0x130/0x2f0 [ 81.269810][ T4728] kill_block_super+0x70/0xdc [ 81.270596][ T4728] deactivate_locked_super+0xb8/0x134 [ 81.271544][ T4728] deactivate_super+0xf0/0x110 [ 81.272305][ T4728] cleanup_mnt+0x3b8/0x46c [ 81.273020][ T4728] __cleanup_mnt+0x20/0x30 [ 81.273697][ T4728] task_work_run+0x12c/0x1d8 [ 81.274411][ T4728] do_notify_resume+0x2450/0x309c [ 81.275176][ T4728] el0_svc+0xf0/0x1d0 [ 81.275794][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 81.276601][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 81.406496][ T4728] BUG: Bad page state in process syz-executor pfn:11764f [ 81.407725][ T4728] page:0000000025481b38 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11764f [ 81.409322][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 81.411642][ T4728] raw: 05ffc00000002006 fffffc00035759c8 ffff80001f0e75c0 0000000000000000 [ 81.413056][ T4728] raw: 0000000000000004 ffff0000c29762e8 00000000ffffffff 0000000000000000 [ 81.414454][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 81.415668][ T4728] Modules linked in: [ 81.416345][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 81.417840][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 81.419396][ T4728] Call trace: [ 81.419936][ T4728] dump_backtrace+0x0/0x458 [ 81.420696][ T4728] show_stack+0x2c/0x3c [ 81.421370][ T4728] __dump_stack+0x30/0x40 [ 81.422144][ T4728] dump_stack_lvl+0xf4/0x15c [ 81.423033][ T4728] dump_stack+0x1c/0x5c [ 81.423725][ T4728] bad_page+0x188/0x1a8 [ 81.424434][ T4728] check_free_page_bad+0xf4/0x16c [ 81.425306][ T4728] free_unref_page_prepare+0x738/0xa84 [ 81.426407][ T4728] free_unref_page_list+0xdc/0x730 [ 81.427253][ T4728] release_pages+0x13bc/0x16dc [ 81.428055][ T4728] __pagevec_release+0x84/0xf8 [ 81.428852][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 81.429847][ T4728] truncate_inode_pages+0x2c/0x3c [ 81.430714][ T4728] dbUnmount+0xf4/0x168 [ 81.431492][ T4728] jfs_umount+0x1c4/0x328 [ 81.432222][ T4728] jfs_put_super+0x90/0x188 [ 81.433074][ T4728] generic_shutdown_super+0x130/0x2f0 [ 81.433949][ T4728] kill_block_super+0x70/0xdc [ 81.434695][ T4728] deactivate_locked_super+0xb8/0x134 [ 81.435598][ T4728] deactivate_super+0xf0/0x110 [ 81.436466][ T4728] cleanup_mnt+0x3b8/0x46c [ 81.437184][ T4728] __cleanup_mnt+0x20/0x30 [ 81.437910][ T4728] task_work_run+0x12c/0x1d8 [ 81.438613][ T4728] do_notify_resume+0x2450/0x309c [ 81.439425][ T4728] el0_svc+0xf0/0x1d0 [ 81.440044][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 81.440838][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 81.441766][ T4728] BUG: Bad page state in process syz-executor pfn:115d67 [ 81.442772][ T4728] page:0000000094380e45 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x115d67 [ 81.444485][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 81.446123][ T4728] raw: 05ffc00000002006 fffffc00033ab988 ffff80001f0e75c0 0000000000000000 [ 81.447560][ T4728] raw: 0000000000000003 ffff0000c29763e0 00000000ffffffff 0000000000000000 [ 81.448970][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 81.450783][ T4728] Modules linked in: [ 81.451440][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 81.452878][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 81.454560][ T4728] Call trace: [ 81.455066][ T4728] dump_backtrace+0x0/0x458 [ 81.455832][ T4728] show_stack+0x2c/0x3c [ 81.456558][ T4728] __dump_stack+0x30/0x40 [ 81.457275][ T4728] dump_stack_lvl+0xf4/0x15c [ 81.457985][ T4728] dump_stack+0x1c/0x5c [ 81.458692][ T4728] bad_page+0x188/0x1a8 [ 81.459410][ T4728] check_free_page_bad+0xf4/0x16c [ 81.460335][ T4728] free_unref_page_prepare+0x738/0xa84 [ 81.461231][ T4728] free_unref_page_list+0xdc/0x730 [ 81.461995][ T4728] release_pages+0x13bc/0x16dc [ 81.462759][ T4728] __pagevec_release+0x84/0xf8 [ 81.463549][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 81.464454][ T4728] truncate_inode_pages+0x2c/0x3c [ 81.465337][ T4728] dbUnmount+0xf4/0x168 [ 81.466104][ T4728] jfs_umount+0x1c4/0x328 [ 81.466812][ T4728] jfs_put_super+0x90/0x188 [ 81.467501][ T4728] generic_shutdown_super+0x130/0x2f0 [ 81.468387][ T4728] kill_block_super+0x70/0xdc [ 81.469136][ T4728] deactivate_locked_super+0xb8/0x134 [ 81.470034][ T4728] deactivate_super+0xf0/0x110 [ 81.470822][ T4728] cleanup_mnt+0x3b8/0x46c [ 81.471594][ T4728] __cleanup_mnt+0x20/0x30 [ 81.472396][ T4728] task_work_run+0x12c/0x1d8 [ 81.473195][ T4728] do_notify_resume+0x2450/0x309c [ 81.474063][ T4728] el0_svc+0xf0/0x1d0 [ 81.474738][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 81.475596][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 81.648640][ T4728] BUG: Bad page state in process syz-executor pfn:1156a9 [ 81.650199][ T4728] page:000000004b152430 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x1156a9 [ 81.652015][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 81.653741][ T4728] raw: 05ffc00000002006 fffffc0003737f48 ffff80001f0e75c0 0000000000000000 [ 81.655217][ T4728] raw: 0000000000000004 ffff0000ec6656c8 00000000ffffffff 0000000000000000 [ 81.656962][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 81.658157][ T4728] Modules linked in: [ 81.658816][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 81.660283][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 81.662059][ T4728] Call trace: [ 81.662559][ T4728] dump_backtrace+0x0/0x458 [ 81.663305][ T4728] show_stack+0x2c/0x3c [ 81.663973][ T4728] __dump_stack+0x30/0x40 [ 81.664741][ T4728] dump_stack_lvl+0xf4/0x15c [ 81.665512][ T4728] dump_stack+0x1c/0x5c [ 81.666223][ T4728] bad_page+0x188/0x1a8 [ 81.666957][ T4728] check_free_page_bad+0xf4/0x16c [ 81.667852][ T4728] free_unref_page_prepare+0x738/0xa84 [ 81.668889][ T4728] free_unref_page_list+0xdc/0x730 [ 81.669777][ T4728] release_pages+0x13bc/0x16dc [ 81.670578][ T4728] __pagevec_release+0x84/0xf8 [ 81.671344][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 81.672352][ T4728] truncate_inode_pages+0x2c/0x3c [ 81.673190][ T4728] dbUnmount+0xf4/0x168 [ 81.673918][ T4728] jfs_umount+0x1c4/0x328 [ 81.674630][ T4728] jfs_put_super+0x90/0x188 [ 81.675387][ T4728] generic_shutdown_super+0x130/0x2f0 [ 81.676242][ T4728] kill_block_super+0x70/0xdc [ 81.676984][ T4728] deactivate_locked_super+0xb8/0x134 [ 81.677876][ T4728] deactivate_super+0xf0/0x110 [ 81.678619][ T4728] cleanup_mnt+0x3b8/0x46c [ 81.679331][ T4728] __cleanup_mnt+0x20/0x30 [ 81.680035][ T4728] task_work_run+0x12c/0x1d8 [ 81.680736][ T4728] do_notify_resume+0x2450/0x309c [ 81.681586][ T4728] el0_svc+0xf0/0x1d0 [ 81.682199][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 81.683027][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 81.683923][ T4728] BUG: Bad page state in process syz-executor pfn:11cdfd [ 81.685116][ T4728] page:000000003c9bcebb refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x11cdfd [ 81.686756][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 81.688428][ T4728] raw: 05ffc00000002006 fffffc00036f48c8 ffff80001f0e75c0 0000000000000000 [ 81.690122][ T4728] raw: 0000000000000003 ffff0000ec6657c0 00000000ffffffff 0000000000000000 [ 81.691547][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 81.692771][ T4728] Modules linked in: [ 81.693419][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 81.694834][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 81.696350][ T4728] Call trace: [ 81.696824][ T4728] dump_backtrace+0x0/0x458 [ 81.697532][ T4728] show_stack+0x2c/0x3c [ 81.698197][ T4728] __dump_stack+0x30/0x40 [ 81.698941][ T4728] dump_stack_lvl+0xf4/0x15c [ 81.699722][ T4728] dump_stack+0x1c/0x5c [ 81.700392][ T4728] bad_page+0x188/0x1a8 [ 81.701137][ T4728] check_free_page_bad+0xf4/0x16c [ 81.702032][ T4728] free_unref_page_prepare+0x738/0xa84 [ 81.702986][ T4728] free_unref_page_list+0xdc/0x730 [ 81.703787][ T4728] release_pages+0x13bc/0x16dc [ 81.704632][ T4728] __pagevec_release+0x84/0xf8 [ 81.705455][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 81.706348][ T4728] truncate_inode_pages+0x2c/0x3c [ 81.707194][ T4728] dbUnmount+0xf4/0x168 [ 81.707926][ T4728] jfs_umount+0x1c4/0x328 [ 81.708633][ T4728] jfs_put_super+0x90/0x188 [ 81.709396][ T4728] generic_shutdown_super+0x130/0x2f0 [ 81.710268][ T4728] kill_block_super+0x70/0xdc [ 81.711060][ T4728] deactivate_locked_super+0xb8/0x134 [ 81.712012][ T4728] deactivate_super+0xf0/0x110 [ 81.712766][ T4728] cleanup_mnt+0x3b8/0x46c [ 81.713510][ T4728] __cleanup_mnt+0x20/0x30 [ 81.714243][ T4728] task_work_run+0x12c/0x1d8 [ 81.714987][ T4728] do_notify_resume+0x2450/0x309c [ 81.715843][ T4728] el0_svc+0xf0/0x1d0 [ 81.716417][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 81.717257][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 81.882512][ T4728] BUG: Bad page state in process syz-executor pfn:11562f [ 81.883670][ T4728] page:00000000b035db2e refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11562f [ 81.885298][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 81.886939][ T4728] raw: 05ffc00000002006 fffffc000356afc8 ffff80001f0e75c0 0000000000000000 [ 81.888690][ T4728] raw: 0000000000000004 ffff0000ccc358b8 00000000ffffffff 0000000000000000 [ 81.890714][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 81.891763][ T4728] Modules linked in: [ 81.892456][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 81.894111][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 81.895719][ T4728] Call trace: [ 81.896284][ T4728] dump_backtrace+0x0/0x458 [ 81.897123][ T4728] show_stack+0x2c/0x3c [ 81.897759][ T4728] __dump_stack+0x30/0x40 [ 81.898512][ T4728] dump_stack_lvl+0xf4/0x15c [ 81.899263][ T4728] dump_stack+0x1c/0x5c [ 81.899955][ T4728] bad_page+0x188/0x1a8 [ 81.900645][ T4728] check_free_page_bad+0xf4/0x16c [ 81.901496][ T4728] free_unref_page_prepare+0x738/0xa84 [ 81.902447][ T4728] free_unref_page_list+0xdc/0x730 [ 81.903292][ T4728] release_pages+0x13bc/0x16dc [ 81.904129][ T4728] __pagevec_release+0x84/0xf8 [ 81.904906][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 81.905831][ T4728] truncate_inode_pages+0x2c/0x3c [ 81.906699][ T4728] dbUnmount+0xf4/0x168 [ 81.907396][ T4728] jfs_umount+0x1c4/0x328 [ 81.908203][ T4728] jfs_put_super+0x90/0x188 [ 81.908954][ T4728] generic_shutdown_super+0x130/0x2f0 [ 81.909861][ T4728] kill_block_super+0x70/0xdc [ 81.910663][ T4728] deactivate_locked_super+0xb8/0x134 [ 81.911623][ T4728] deactivate_super+0xf0/0x110 [ 81.912418][ T4728] cleanup_mnt+0x3b8/0x46c [ 81.913113][ T4728] __cleanup_mnt+0x20/0x30 [ 81.913814][ T4728] task_work_run+0x12c/0x1d8 [ 81.914560][ T4728] do_notify_resume+0x2450/0x309c [ 81.915338][ T4728] el0_svc+0xf0/0x1d0 [ 81.915976][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 81.916813][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 81.918084][ T4728] BUG: Bad page state in process syz-executor pfn:115abf [ 81.919206][ T4728] page:00000000f2fd9fd8 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x115abf [ 81.920879][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 81.922256][ T4728] raw: 05ffc00000002006 fffffc0003748e48 ffff80001f0e75c0 0000000000000000 [ 81.923591][ T4728] raw: 0000000000000003 ffff0000ccc359b0 00000000ffffffff 0000000000000000 [ 81.924925][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 81.926181][ T4728] Modules linked in: [ 81.926816][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 81.928350][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 81.929913][ T4728] Call trace: [ 81.930491][ T4728] dump_backtrace+0x0/0x458 [ 81.931261][ T4728] show_stack+0x2c/0x3c [ 81.931933][ T4728] __dump_stack+0x30/0x40 [ 81.932621][ T4728] dump_stack_lvl+0xf4/0x15c [ 81.933391][ T4728] dump_stack+0x1c/0x5c [ 81.934077][ T4728] bad_page+0x188/0x1a8 [ 81.934785][ T4728] check_free_page_bad+0xf4/0x16c [ 81.935645][ T4728] free_unref_page_prepare+0x738/0xa84 [ 81.936551][ T4728] free_unref_page_list+0xdc/0x730 [ 81.937365][ T4728] release_pages+0x13bc/0x16dc [ 81.938174][ T4728] __pagevec_release+0x84/0xf8 [ 81.938900][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 81.939811][ T4728] truncate_inode_pages+0x2c/0x3c [ 81.940643][ T4728] dbUnmount+0xf4/0x168 [ 81.941366][ T4728] jfs_umount+0x1c4/0x328 [ 81.942096][ T4728] jfs_put_super+0x90/0x188 [ 81.942865][ T4728] generic_shutdown_super+0x130/0x2f0 [ 81.943805][ T4728] kill_block_super+0x70/0xdc [ 81.944593][ T4728] deactivate_locked_super+0xb8/0x134 [ 81.945495][ T4728] deactivate_super+0xf0/0x110 [ 81.946321][ T4728] cleanup_mnt+0x3b8/0x46c [ 81.947041][ T4728] __cleanup_mnt+0x20/0x30 [ 81.947768][ T4728] task_work_run+0x12c/0x1d8 [ 81.948587][ T4728] do_notify_resume+0x2450/0x309c [ 81.949436][ T4728] el0_svc+0xf0/0x1d0 [ 81.950187][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 81.950955][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 82.126417][ T4728] BUG: Bad page state in process syz-executor pfn:118b06 [ 82.127558][ T4728] page:00000000bdeee199 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x118b06 [ 82.130307][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 82.131863][ T4728] raw: 05ffc00000002006 fffffc0003355ec8 ffff80001f0e75c0 0000000000000000 [ 82.133337][ T4728] raw: 0000000000000004 ffff0000c82a9aa8 00000000ffffffff 0000000000000000 [ 82.134825][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 82.136070][ T4728] Modules linked in: [ 82.136719][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 82.138176][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 82.139824][ T4728] Call trace: [ 82.140368][ T4728] dump_backtrace+0x0/0x458 [ 82.141157][ T4728] show_stack+0x2c/0x3c [ 82.141864][ T4728] __dump_stack+0x30/0x40 [ 82.142640][ T4728] dump_stack_lvl+0xf4/0x15c [ 82.143441][ T4728] dump_stack+0x1c/0x5c [ 82.144155][ T4728] bad_page+0x188/0x1a8 [ 82.144875][ T4728] check_free_page_bad+0xf4/0x16c [ 82.145749][ T4728] free_unref_page_prepare+0x738/0xa84 [ 82.146650][ T4728] free_unref_page_list+0xdc/0x730 [ 82.147482][ T4728] release_pages+0x13bc/0x16dc [ 82.148282][ T4728] __pagevec_release+0x84/0xf8 [ 82.149125][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 82.150114][ T4728] truncate_inode_pages+0x2c/0x3c [ 82.150896][ T4728] dbUnmount+0xf4/0x168 [ 82.151584][ T4728] jfs_umount+0x1c4/0x328 [ 82.152283][ T4728] jfs_put_super+0x90/0x188 [ 82.153030][ T4728] generic_shutdown_super+0x130/0x2f0 [ 82.154084][ T4728] kill_block_super+0x70/0xdc [ 82.154843][ T4728] deactivate_locked_super+0xb8/0x134 [ 82.155734][ T4728] deactivate_super+0xf0/0x110 [ 82.156639][ T4728] cleanup_mnt+0x3b8/0x46c [ 82.157384][ T4728] __cleanup_mnt+0x20/0x30 [ 82.158170][ T4728] task_work_run+0x12c/0x1d8 [ 82.158926][ T4728] do_notify_resume+0x2450/0x309c [ 82.159793][ T4728] el0_svc+0xf0/0x1d0 [ 82.160479][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 82.161371][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 82.162715][ T4728] BUG: Bad page state in process syz-executor pfn:10d57b [ 82.163836][ T4728] page:00000000dc3ab3fb refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x10d57b [ 82.165504][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 82.167127][ T4728] raw: 05ffc00000002006 fffffc000324a688 ffff80001f0e75c0 0000000000000000 [ 82.168543][ T4728] raw: 0000000000000003 ffff0000c82a9ba0 00000000ffffffff 0000000000000000 [ 82.170279][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 82.171498][ T4728] Modules linked in: [ 82.172186][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 82.173708][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 82.175245][ T4728] Call trace: [ 82.175799][ T4728] dump_backtrace+0x0/0x458 [ 82.176548][ T4728] show_stack+0x2c/0x3c [ 82.177226][ T4728] __dump_stack+0x30/0x40 [ 82.177911][ T4728] dump_stack_lvl+0xf4/0x15c [ 82.178635][ T4728] dump_stack+0x1c/0x5c [ 82.179322][ T4728] bad_page+0x188/0x1a8 [ 82.180010][ T4728] check_free_page_bad+0xf4/0x16c [ 82.180872][ T4728] free_unref_page_prepare+0x738/0xa84 [ 82.181838][ T4728] free_unref_page_list+0xdc/0x730 [ 82.182698][ T4728] release_pages+0x13bc/0x16dc [ 82.183537][ T4728] __pagevec_release+0x84/0xf8 [ 82.184363][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 82.185337][ T4728] truncate_inode_pages+0x2c/0x3c [ 82.186214][ T4728] dbUnmount+0xf4/0x168 [ 82.186874][ T4728] jfs_umount+0x1c4/0x328 [ 82.187626][ T4728] jfs_put_super+0x90/0x188 [ 82.188395][ T4728] generic_shutdown_super+0x130/0x2f0 [ 82.189362][ T4728] kill_block_super+0x70/0xdc [ 82.190169][ T4728] deactivate_locked_super+0xb8/0x134 [ 82.191112][ T4728] deactivate_super+0xf0/0x110 [ 82.191955][ T4728] cleanup_mnt+0x3b8/0x46c [ 82.192738][ T4728] __cleanup_mnt+0x20/0x30 [ 82.193465][ T4728] task_work_run+0x12c/0x1d8 [ 82.194261][ T4728] do_notify_resume+0x2450/0x309c [ 82.195147][ T4728] el0_svc+0xf0/0x1d0 [ 82.195827][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 82.196706][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 82.380668][ T4728] BUG: Bad page state in process syz-executor pfn:12bc9b [ 82.381860][ T4728] page:00000000e2f571a6 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x12bc9b [ 82.383527][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 82.385156][ T4728] raw: 05ffc00000002006 fffffc000356d088 ffff80001f0e75c0 0000000000000000 [ 82.386585][ T4728] raw: 0000000000000004 ffff0000e7db1c98 00000000ffffffff 0000000000000000 [ 82.387954][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 82.389147][ T4728] Modules linked in: [ 82.390089][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 82.391421][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 82.393067][ T4728] Call trace: [ 82.393597][ T4728] dump_backtrace+0x0/0x458 [ 82.394343][ T4728] show_stack+0x2c/0x3c [ 82.394989][ T4728] __dump_stack+0x30/0x40 [ 82.395621][ T4728] dump_stack_lvl+0xf4/0x15c [ 82.396395][ T4728] dump_stack+0x1c/0x5c [ 82.397021][ T4728] bad_page+0x188/0x1a8 [ 82.397639][ T4728] check_free_page_bad+0xf4/0x16c [ 82.398489][ T4728] free_unref_page_prepare+0x738/0xa84 [ 82.399405][ T4728] free_unref_page_list+0xdc/0x730 [ 82.400251][ T4728] release_pages+0x13bc/0x16dc [ 82.401017][ T4728] __pagevec_release+0x84/0xf8 [ 82.401695][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 82.402639][ T4728] truncate_inode_pages+0x2c/0x3c [ 82.403466][ T4728] dbUnmount+0xf4/0x168 [ 82.404339][ T4728] jfs_umount+0x1c4/0x328 [ 82.405024][ T4728] jfs_put_super+0x90/0x188 [ 82.405731][ T4728] generic_shutdown_super+0x130/0x2f0 [ 82.406667][ T4728] kill_block_super+0x70/0xdc [ 82.407488][ T4728] deactivate_locked_super+0xb8/0x134 [ 82.408232][ T4728] deactivate_super+0xf0/0x110 [ 82.408987][ T4728] cleanup_mnt+0x3b8/0x46c [ 82.409786][ T4728] __cleanup_mnt+0x20/0x30 [ 82.410511][ T4728] task_work_run+0x12c/0x1d8 [ 82.411244][ T4728] do_notify_resume+0x2450/0x309c [ 82.412086][ T4728] el0_svc+0xf0/0x1d0 [ 82.412750][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 82.413635][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 82.414463][ T4728] BUG: Bad page state in process syz-executor pfn:115b42 [ 82.415690][ T4728] page:0000000078fcbe99 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x115b42 [ 82.417279][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 82.418845][ T4728] raw: 05ffc00000002006 fffffc00034a3ec8 ffff80001f0e75c0 0000000000000000 [ 82.420899][ T4728] raw: 0000000000000003 ffff0000e7db1d90 00000000ffffffff 0000000000000000 [ 82.422358][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 82.423511][ T4728] Modules linked in: [ 82.424162][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 82.425651][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 82.427341][ T4728] Call trace: [ 82.427839][ T4728] dump_backtrace+0x0/0x458 [ 82.428666][ T4728] show_stack+0x2c/0x3c [ 82.429364][ T4728] __dump_stack+0x30/0x40 [ 82.430134][ T4728] dump_stack_lvl+0xf4/0x15c [ 82.431053][ T4728] dump_stack+0x1c/0x5c [ 82.431768][ T4728] bad_page+0x188/0x1a8 [ 82.432518][ T4728] check_free_page_bad+0xf4/0x16c [ 82.433424][ T4728] free_unref_page_prepare+0x738/0xa84 [ 82.434350][ T4728] free_unref_page_list+0xdc/0x730 [ 82.435276][ T4728] release_pages+0x13bc/0x16dc [ 82.436154][ T4728] __pagevec_release+0x84/0xf8 [ 82.437000][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 82.438011][ T4728] truncate_inode_pages+0x2c/0x3c [ 82.438951][ T4728] dbUnmount+0xf4/0x168 [ 82.439600][ T4728] jfs_umount+0x1c4/0x328 [ 82.440327][ T4728] jfs_put_super+0x90/0x188 [ 82.441146][ T4728] generic_shutdown_super+0x130/0x2f0 [ 82.442030][ T4728] kill_block_super+0x70/0xdc [ 82.442741][ T4728] deactivate_locked_super+0xb8/0x134 [ 82.443702][ T4728] deactivate_super+0xf0/0x110 [ 82.444523][ T4728] cleanup_mnt+0x3b8/0x46c [ 82.445254][ T4728] __cleanup_mnt+0x20/0x30 [ 82.446016][ T4728] task_work_run+0x12c/0x1d8 [ 82.446771][ T4728] do_notify_resume+0x2450/0x309c [ 82.447545][ T4728] el0_svc+0xf0/0x1d0 [ 82.448259][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 82.449117][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 82.665676][ T4728] BUG: Bad page state in process syz-executor pfn:111ce9 [ 82.666773][ T4728] page:00000000cb3bc103 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x111ce9 [ 82.668349][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 82.670602][ T4728] raw: 05ffc00000002006 fffffc0003b1a7c8 ffff80001f0e75c0 0000000000000000 [ 82.671985][ T4728] raw: 0000000000000004 ffff0000d8d9c2e8 00000000ffffffff 0000000000000000 [ 82.673360][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 82.674562][ T4728] Modules linked in: [ 82.675253][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 82.676743][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 82.678410][ T4728] Call trace: [ 82.678959][ T4728] dump_backtrace+0x0/0x458 [ 82.679759][ T4728] show_stack+0x2c/0x3c [ 82.680507][ T4728] __dump_stack+0x30/0x40 [ 82.681193][ T4728] dump_stack_lvl+0xf4/0x15c [ 82.681962][ T4728] dump_stack+0x1c/0x5c [ 82.682630][ T4728] bad_page+0x188/0x1a8 [ 82.683341][ T4728] check_free_page_bad+0xf4/0x16c [ 82.684192][ T4728] free_unref_page_prepare+0x738/0xa84 [ 82.685094][ T4728] free_unref_page_list+0xdc/0x730 [ 82.686046][ T4728] release_pages+0x13bc/0x16dc [ 82.686935][ T4728] __pagevec_release+0x84/0xf8 [ 82.687742][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 82.688710][ T4728] truncate_inode_pages+0x2c/0x3c [ 82.689610][ T4728] dbUnmount+0xf4/0x168 [ 82.690319][ T4728] jfs_umount+0x1c4/0x328 [ 82.691013][ T4728] jfs_put_super+0x90/0x188 [ 82.691768][ T4728] generic_shutdown_super+0x130/0x2f0 [ 82.692635][ T4728] kill_block_super+0x70/0xdc [ 82.693385][ T4728] deactivate_locked_super+0xb8/0x134 [ 82.694294][ T4728] deactivate_super+0xf0/0x110 [ 82.695099][ T4728] cleanup_mnt+0x3b8/0x46c [ 82.695823][ T4728] __cleanup_mnt+0x20/0x30 [ 82.696598][ T4728] task_work_run+0x12c/0x1d8 [ 82.697348][ T4728] do_notify_resume+0x2450/0x309c [ 82.698232][ T4728] el0_svc+0xf0/0x1d0 [ 82.698902][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 82.699865][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 82.702543][ T4728] BUG: Bad page state in process syz-executor pfn:12c69f [ 82.703664][ T4728] page:000000006a8d1a29 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x12c69f [ 82.705407][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 82.707025][ T4728] raw: 05ffc00000002006 fffffc0003453848 ffff80001f0e75c0 0000000000000000 [ 82.708448][ T4728] raw: 0000000000000003 ffff0000d8d9c3e0 00000000ffffffff 0000000000000000 [ 82.710411][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 82.711498][ T4728] Modules linked in: [ 82.712125][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 82.713573][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 82.715267][ T4728] Call trace: [ 82.715807][ T4728] dump_backtrace+0x0/0x458 [ 82.716560][ T4728] show_stack+0x2c/0x3c [ 82.717287][ T4728] __dump_stack+0x30/0x40 [ 82.717999][ T4728] dump_stack_lvl+0xf4/0x15c [ 82.718806][ T4728] dump_stack+0x1c/0x5c [ 82.719497][ T4728] bad_page+0x188/0x1a8 [ 82.720189][ T4728] check_free_page_bad+0xf4/0x16c [ 82.721032][ T4728] free_unref_page_prepare+0x738/0xa84 [ 82.721926][ T4728] free_unref_page_list+0xdc/0x730 [ 82.722776][ T4728] release_pages+0x13bc/0x16dc [ 82.723532][ T4728] __pagevec_release+0x84/0xf8 [ 82.724370][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 82.725330][ T4728] truncate_inode_pages+0x2c/0x3c [ 82.726172][ T4728] dbUnmount+0xf4/0x168 [ 82.726820][ T4728] jfs_umount+0x1c4/0x328 [ 82.727513][ T4728] jfs_put_super+0x90/0x188 [ 82.728292][ T4728] generic_shutdown_super+0x130/0x2f0 [ 82.729255][ T4728] kill_block_super+0x70/0xdc [ 82.730083][ T4728] deactivate_locked_super+0xb8/0x134 [ 82.731031][ T4728] deactivate_super+0xf0/0x110 [ 82.731838][ T4728] cleanup_mnt+0x3b8/0x46c [ 82.732580][ T4728] __cleanup_mnt+0x20/0x30 [ 82.733413][ T4728] task_work_run+0x12c/0x1d8 [ 82.734237][ T4728] do_notify_resume+0x2450/0x309c [ 82.735157][ T4728] el0_svc+0xf0/0x1d0 [ 82.735829][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 82.736711][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 82.908572][ T4728] BUG: Bad page state in process syz-executor pfn:12be14 [ 82.910017][ T4728] page:00000000ab9f42fe refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x12be14 [ 82.911659][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 82.913391][ T4728] raw: 05ffc00000002006 fffffc0003af84c8 ffff80001f0e75c0 0000000000000000 [ 82.914873][ T4728] raw: 0000000000000004 ffff0000d8d9ce88 00000000ffffffff 0000000000000000 [ 82.916336][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 82.917512][ T4728] Modules linked in: [ 82.918136][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 82.919614][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 82.921332][ T4728] Call trace: [ 82.921889][ T4728] dump_backtrace+0x0/0x458 [ 82.922605][ T4728] show_stack+0x2c/0x3c [ 82.923310][ T4728] __dump_stack+0x30/0x40 [ 82.923954][ T4728] dump_stack_lvl+0xf4/0x15c [ 82.924644][ T4728] dump_stack+0x1c/0x5c [ 82.925338][ T4728] bad_page+0x188/0x1a8 [ 82.926071][ T4728] check_free_page_bad+0xf4/0x16c [ 82.926932][ T4728] free_unref_page_prepare+0x738/0xa84 [ 82.927875][ T4728] free_unref_page_list+0xdc/0x730 [ 82.928799][ T4728] release_pages+0x13bc/0x16dc [ 82.929688][ T4728] __pagevec_release+0x84/0xf8 [ 82.930616][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 82.931678][ T4728] truncate_inode_pages+0x2c/0x3c [ 82.932510][ T4728] dbUnmount+0xf4/0x168 [ 82.933240][ T4728] jfs_umount+0x1c4/0x328 [ 82.933956][ T4728] jfs_put_super+0x90/0x188 [ 82.934724][ T4728] generic_shutdown_super+0x130/0x2f0 [ 82.935667][ T4728] kill_block_super+0x70/0xdc [ 82.936441][ T4728] deactivate_locked_super+0xb8/0x134 [ 82.937325][ T4728] deactivate_super+0xf0/0x110 [ 82.938165][ T4728] cleanup_mnt+0x3b8/0x46c [ 82.938918][ T4728] __cleanup_mnt+0x20/0x30 [ 82.939701][ T4728] task_work_run+0x12c/0x1d8 [ 82.940558][ T4728] do_notify_resume+0x2450/0x309c [ 82.941427][ T4728] el0_svc+0xf0/0x1d0 [ 82.941999][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 82.942780][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 82.944228][ T4728] BUG: Bad page state in process syz-executor pfn:12be13 [ 82.945314][ T4728] page:0000000088166e9d refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x12be13 [ 82.947099][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 82.948760][ T4728] raw: 05ffc00000002006 fffffc00039d3488 ffff80001f0e75c0 0000000000000000 [ 82.950605][ T4728] raw: 0000000000000003 ffff0000cee2b000 00000000ffffffff 0000000000000000 [ 82.952015][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 82.953241][ T4728] Modules linked in: [ 82.953861][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 82.955269][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 82.956909][ T4728] Call trace: [ 82.957453][ T4728] dump_backtrace+0x0/0x458 [ 82.958243][ T4728] show_stack+0x2c/0x3c [ 82.958915][ T4728] __dump_stack+0x30/0x40 [ 82.959632][ T4728] dump_stack_lvl+0xf4/0x15c [ 82.960485][ T4728] dump_stack+0x1c/0x5c [ 82.961181][ T4728] bad_page+0x188/0x1a8 [ 82.961919][ T4728] check_free_page_bad+0xf4/0x16c [ 82.962748][ T4728] free_unref_page_prepare+0x738/0xa84 [ 82.963683][ T4728] free_unref_page_list+0xdc/0x730 [ 82.964543][ T4728] release_pages+0x13bc/0x16dc [ 82.965343][ T4728] __pagevec_release+0x84/0xf8 [ 82.966162][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 82.967105][ T4728] truncate_inode_pages+0x2c/0x3c [ 82.967961][ T4728] dbUnmount+0xf4/0x168 [ 82.968690][ T4728] jfs_umount+0x1c4/0x328 [ 82.969397][ T4728] jfs_put_super+0x90/0x188 [ 82.970173][ T4728] generic_shutdown_super+0x130/0x2f0 [ 82.971115][ T4728] kill_block_super+0x70/0xdc [ 82.971912][ T4728] deactivate_locked_super+0xb8/0x134 [ 82.972837][ T4728] deactivate_super+0xf0/0x110 [ 82.973654][ T4728] cleanup_mnt+0x3b8/0x46c [ 82.974457][ T4728] __cleanup_mnt+0x20/0x30 [ 82.975246][ T4728] task_work_run+0x12c/0x1d8 [ 82.976015][ T4728] do_notify_resume+0x2450/0x309c [ 82.976897][ T4728] el0_svc+0xf0/0x1d0 [ 82.977587][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 82.978443][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 83.163206][ T4728] BUG: Bad page state in process syz-executor pfn:1158bc [ 83.164417][ T4728] page:00000000e256929d refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x1158bc [ 83.166152][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 83.167615][ T4728] raw: 05ffc00000002006 fffffc0003af8848 ffff80001f0e75c0 0000000000000000 [ 83.169364][ T4728] raw: 0000000000000004 ffff0000dd23d0f8 00000000ffffffff 0000000000000000 [ 83.170894][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 83.172104][ T4728] Modules linked in: [ 83.172745][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 83.174176][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 83.175842][ T4728] Call trace: [ 83.176331][ T4728] dump_backtrace+0x0/0x458 [ 83.177085][ T4728] show_stack+0x2c/0x3c [ 83.177778][ T4728] __dump_stack+0x30/0x40 [ 83.178526][ T4728] dump_stack_lvl+0xf4/0x15c [ 83.179342][ T4728] dump_stack+0x1c/0x5c [ 83.180037][ T4728] bad_page+0x188/0x1a8 [ 83.180741][ T4728] check_free_page_bad+0xf4/0x16c [ 83.181572][ T4728] free_unref_page_prepare+0x738/0xa84 [ 83.182519][ T4728] free_unref_page_list+0xdc/0x730 [ 83.183352][ T4728] release_pages+0x13bc/0x16dc [ 83.184164][ T4728] __pagevec_release+0x84/0xf8 [ 83.184911][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 83.185814][ T4728] truncate_inode_pages+0x2c/0x3c [ 83.186627][ T4728] dbUnmount+0xf4/0x168 [ 83.187314][ T4728] jfs_umount+0x1c4/0x328 [ 83.187977][ T4728] jfs_put_super+0x90/0x188 [ 83.188717][ T4728] generic_shutdown_super+0x130/0x2f0 [ 83.189574][ T4728] kill_block_super+0x70/0xdc [ 83.190322][ T4728] deactivate_locked_super+0xb8/0x134 [ 83.191172][ T4728] deactivate_super+0xf0/0x110 [ 83.191927][ T4728] cleanup_mnt+0x3b8/0x46c [ 83.192630][ T4728] __cleanup_mnt+0x20/0x30 [ 83.193337][ T4728] task_work_run+0x12c/0x1d8 [ 83.194087][ T4728] do_notify_resume+0x2450/0x309c [ 83.194870][ T4728] el0_svc+0xf0/0x1d0 [ 83.195517][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 83.196355][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 83.197796][ T4728] BUG: Bad page state in process syz-executor pfn:12be21 [ 83.198908][ T4728] page:0000000082b5e2bd refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x12be21 [ 83.200863][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 83.202428][ T4728] raw: 05ffc00000002006 fffffc0003250388 ffff80001f0e75c0 0000000000000000 [ 83.203865][ T4728] raw: 0000000000000003 ffff0000dd23d1f0 00000000ffffffff 0000000000000000 [ 83.205227][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 83.206456][ T4728] Modules linked in: [ 83.207158][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 1970/01/01 00:01:23 executed programs: 22 [ 83.208596][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 83.210261][ T4728] Call trace: [ 83.210797][ T4728] dump_backtrace+0x0/0x458 [ 83.211513][ T4728] show_stack+0x2c/0x3c [ 83.212106][ T4728] __dump_stack+0x30/0x40 [ 83.212783][ T4728] dump_stack_lvl+0xf4/0x15c [ 83.213520][ T4728] dump_stack+0x1c/0x5c [ 83.214191][ T4728] bad_page+0x188/0x1a8 [ 83.214867][ T4728] check_free_page_bad+0xf4/0x16c [ 83.215722][ T4728] free_unref_page_prepare+0x738/0xa84 [ 83.216639][ T4728] free_unref_page_list+0xdc/0x730 [ 83.217507][ T4728] release_pages+0x13bc/0x16dc [ 83.218287][ T4728] __pagevec_release+0x84/0xf8 [ 83.219152][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 83.220078][ T4728] truncate_inode_pages+0x2c/0x3c [ 83.220915][ T4728] dbUnmount+0xf4/0x168 [ 83.221597][ T4728] jfs_umount+0x1c4/0x328 [ 83.222329][ T4728] jfs_put_super+0x90/0x188 [ 83.223034][ T4728] generic_shutdown_super+0x130/0x2f0 [ 83.223862][ T4728] kill_block_super+0x70/0xdc [ 83.224606][ T4728] deactivate_locked_super+0xb8/0x134 [ 83.225403][ T4728] deactivate_super+0xf0/0x110 [ 83.226132][ T4728] cleanup_mnt+0x3b8/0x46c [ 83.226765][ T4728] __cleanup_mnt+0x20/0x30 [ 83.227467][ T4728] task_work_run+0x12c/0x1d8 [ 83.228127][ T4728] do_notify_resume+0x2450/0x309c [ 83.228904][ T4728] el0_svc+0xf0/0x1d0 [ 83.229550][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 83.230347][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 83.344419][ T4947] set_capacity_and_notify: 10 callbacks suppressed [ 83.344429][ T4947] loop0: detected capacity change from 0 to 32768 [ 83.409645][ T4728] BUG: Bad page state in process syz-executor pfn:1158ca [ 83.410878][ T4728] page:0000000037ab3f44 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x1158ca [ 83.412618][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 83.414235][ T4728] raw: 05ffc00000002006 fffffc0003457d48 ffff80001f0e75c0 0000000000000000 [ 83.415589][ T4728] raw: 0000000000000004 ffff0000d6f764d8 00000000ffffffff 0000000000000000 [ 83.416972][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 83.418214][ T4728] Modules linked in: [ 83.418838][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 83.420397][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 83.422119][ T4728] Call trace: [ 83.422631][ T4728] dump_backtrace+0x0/0x458 [ 83.423447][ T4728] show_stack+0x2c/0x3c [ 83.424135][ T4728] __dump_stack+0x30/0x40 [ 83.424887][ T4728] dump_stack_lvl+0xf4/0x15c [ 83.425598][ T4728] dump_stack+0x1c/0x5c [ 83.426283][ T4728] bad_page+0x188/0x1a8 [ 83.426951][ T4728] check_free_page_bad+0xf4/0x16c [ 83.427815][ T4728] free_unref_page_prepare+0x738/0xa84 [ 83.428870][ T4728] free_unref_page_list+0xdc/0x730 [ 83.429722][ T4728] release_pages+0x13bc/0x16dc [ 83.430498][ T4728] __pagevec_release+0x84/0xf8 [ 83.431292][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 83.432145][ T4728] truncate_inode_pages+0x2c/0x3c [ 83.432964][ T4728] dbUnmount+0xf4/0x168 [ 83.433650][ T4728] jfs_umount+0x1c4/0x328 [ 83.434369][ T4728] jfs_put_super+0x90/0x188 [ 83.435231][ T4728] generic_shutdown_super+0x130/0x2f0 [ 83.436121][ T4728] kill_block_super+0x70/0xdc [ 83.436926][ T4728] deactivate_locked_super+0xb8/0x134 [ 83.437844][ T4728] deactivate_super+0xf0/0x110 [ 83.438622][ T4728] cleanup_mnt+0x3b8/0x46c [ 83.439304][ T4728] __cleanup_mnt+0x20/0x30 [ 83.440030][ T4728] task_work_run+0x12c/0x1d8 [ 83.440772][ T4728] do_notify_resume+0x2450/0x309c [ 83.441453][ T4728] el0_svc+0xf0/0x1d0 [ 83.442192][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 83.442930][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 83.443910][ T4728] BUG: Bad page state in process syz-executor pfn:1115f5 [ 83.445072][ T4728] page:00000000502a0e7e refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x1115f5 [ 83.446718][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 83.448395][ T4728] raw: 05ffc00000002006 fffffc0003451988 ffff80001f0e75c0 0000000000000000 [ 83.450033][ T4728] raw: 0000000000000003 ffff0000d6f765d0 00000000ffffffff 0000000000000000 [ 83.451311][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 83.452505][ T4728] Modules linked in: [ 83.453166][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 83.454600][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 83.456170][ T4728] Call trace: [ 83.456688][ T4728] dump_backtrace+0x0/0x458 [ 83.457450][ T4728] show_stack+0x2c/0x3c [ 83.458051][ T4728] __dump_stack+0x30/0x40 [ 83.458786][ T4728] dump_stack_lvl+0xf4/0x15c [ 83.459496][ T4728] dump_stack+0x1c/0x5c [ 83.460187][ T4728] bad_page+0x188/0x1a8 [ 83.460878][ T4728] check_free_page_bad+0xf4/0x16c [ 83.461678][ T4728] free_unref_page_prepare+0x738/0xa84 [ 83.462596][ T4728] free_unref_page_list+0xdc/0x730 [ 83.463523][ T4728] release_pages+0x13bc/0x16dc [ 83.464323][ T4728] __pagevec_release+0x84/0xf8 [ 83.465175][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 83.466108][ T4728] truncate_inode_pages+0x2c/0x3c [ 83.467008][ T4728] dbUnmount+0xf4/0x168 [ 83.467773][ T4728] jfs_umount+0x1c4/0x328 [ 83.468527][ T4728] jfs_put_super+0x90/0x188 [ 83.469342][ T4728] generic_shutdown_super+0x130/0x2f0 [ 83.470277][ T4728] kill_block_super+0x70/0xdc [ 83.471119][ T4728] deactivate_locked_super+0xb8/0x134 [ 83.472081][ T4728] deactivate_super+0xf0/0x110 [ 83.472924][ T4728] cleanup_mnt+0x3b8/0x46c [ 83.473722][ T4728] __cleanup_mnt+0x20/0x30 [ 83.474500][ T4728] task_work_run+0x12c/0x1d8 [ 83.475299][ T4728] do_notify_resume+0x2450/0x309c [ 83.476172][ T4728] el0_svc+0xf0/0x1d0 [ 83.476910][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 83.477713][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 83.589315][ T4949] loop0: detected capacity change from 0 to 32768 [ 83.674740][ T4728] BUG: Bad page state in process syz-executor pfn:10aa39 [ 83.675861][ T4728] page:00000000243a2456 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10aa39 [ 83.677452][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 83.678994][ T4728] raw: 05ffc00000002006 fffffc000366b708 ffff80001f0e75c0 0000000000000000 [ 83.680833][ T4728] raw: 0000000000000004 ffff0000e774a2e8 00000000ffffffff 0000000000000000 [ 83.682154][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 83.683357][ T4728] Modules linked in: [ 83.684030][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 83.685428][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 83.687172][ T4728] Call trace: [ 83.687702][ T4728] dump_backtrace+0x0/0x458 [ 83.688400][ T4728] show_stack+0x2c/0x3c [ 83.689071][ T4728] __dump_stack+0x30/0x40 [ 83.689802][ T4728] dump_stack_lvl+0xf4/0x15c [ 83.690579][ T4728] dump_stack+0x1c/0x5c [ 83.691233][ T4728] bad_page+0x188/0x1a8 [ 83.691862][ T4728] check_free_page_bad+0xf4/0x16c [ 83.692722][ T4728] free_unref_page_prepare+0x738/0xa84 [ 83.693604][ T4728] free_unref_page_list+0xdc/0x730 [ 83.694402][ T4728] release_pages+0x13bc/0x16dc [ 83.695221][ T4728] __pagevec_release+0x84/0xf8 [ 83.696035][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 83.697026][ T4728] truncate_inode_pages+0x2c/0x3c [ 83.697871][ T4728] dbUnmount+0xf4/0x168 [ 83.698656][ T4728] jfs_umount+0x1c4/0x328 [ 83.699370][ T4728] jfs_put_super+0x90/0x188 [ 83.700098][ T4728] generic_shutdown_super+0x130/0x2f0 [ 83.701130][ T4728] kill_block_super+0x70/0xdc [ 83.701906][ T4728] deactivate_locked_super+0xb8/0x134 [ 83.702817][ T4728] deactivate_super+0xf0/0x110 [ 83.703576][ T4728] cleanup_mnt+0x3b8/0x46c [ 83.704271][ T4728] __cleanup_mnt+0x20/0x30 [ 83.704974][ T4728] task_work_run+0x12c/0x1d8 [ 83.705735][ T4728] do_notify_resume+0x2450/0x309c [ 83.706599][ T4728] el0_svc+0xf0/0x1d0 [ 83.707261][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 83.708088][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 83.709339][ T4728] BUG: Bad page state in process syz-executor pfn:119adc [ 83.710689][ T4728] page:00000000e2692025 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x119adc [ 83.712923][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 83.714501][ T4728] raw: 05ffc00000002006 fffffc00039d0588 ffff80001f0e75c0 0000000000000000 [ 83.715940][ T4728] raw: 0000000000000003 ffff0000e774a3e0 00000000ffffffff 0000000000000000 [ 83.717319][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 83.718583][ T4728] Modules linked in: [ 83.719234][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 83.720895][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 83.722670][ T4728] Call trace: [ 83.723270][ T4728] dump_backtrace+0x0/0x458 [ 83.724078][ T4728] show_stack+0x2c/0x3c [ 83.724784][ T4728] __dump_stack+0x30/0x40 [ 83.725500][ T4728] dump_stack_lvl+0xf4/0x15c [ 83.726266][ T4728] dump_stack+0x1c/0x5c [ 83.727011][ T4728] bad_page+0x188/0x1a8 [ 83.727731][ T4728] check_free_page_bad+0xf4/0x16c [ 83.728573][ T4728] free_unref_page_prepare+0x738/0xa84 [ 83.729528][ T4728] free_unref_page_list+0xdc/0x730 [ 83.730383][ T4728] release_pages+0x13bc/0x16dc [ 83.731177][ T4728] __pagevec_release+0x84/0xf8 [ 83.731933][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 83.732838][ T4728] truncate_inode_pages+0x2c/0x3c [ 83.733703][ T4728] dbUnmount+0xf4/0x168 [ 83.734416][ T4728] jfs_umount+0x1c4/0x328 [ 83.735134][ T4728] jfs_put_super+0x90/0x188 [ 83.735947][ T4728] generic_shutdown_super+0x130/0x2f0 [ 83.736829][ T4728] kill_block_super+0x70/0xdc [ 83.737610][ T4728] deactivate_locked_super+0xb8/0x134 [ 83.738501][ T4728] deactivate_super+0xf0/0x110 [ 83.739314][ T4728] cleanup_mnt+0x3b8/0x46c [ 83.740089][ T4728] __cleanup_mnt+0x20/0x30 [ 83.740893][ T4728] task_work_run+0x12c/0x1d8 [ 83.741696][ T4728] do_notify_resume+0x2450/0x309c [ 83.742569][ T4728] el0_svc+0xf0/0x1d0 [ 83.743270][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 83.744133][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 83.853758][ T4951] loop0: detected capacity change from 0 to 32768 [ 83.916521][ T4728] BUG: Bad page state in process syz-executor pfn:12b3b8 [ 83.917605][ T4728] page:0000000078d7eb85 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x12b3b8 [ 83.919270][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 83.921275][ T4728] raw: 05ffc00000002006 fffffc0003a4af08 ffff80001f0e75c0 0000000000000000 [ 83.922614][ T4728] raw: 0000000000000004 ffff0000ca85e4d8 00000000ffffffff 0000000000000000 [ 83.923954][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 83.925071][ T4728] Modules linked in: [ 83.925766][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 83.927232][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 83.928921][ T4728] Call trace: [ 83.929479][ T4728] dump_backtrace+0x0/0x458 [ 83.930267][ T4728] show_stack+0x2c/0x3c [ 83.930965][ T4728] __dump_stack+0x30/0x40 [ 83.931700][ T4728] dump_stack_lvl+0xf4/0x15c [ 83.932460][ T4728] dump_stack+0x1c/0x5c [ 83.933187][ T4728] bad_page+0x188/0x1a8 [ 83.933869][ T4728] check_free_page_bad+0xf4/0x16c [ 83.934702][ T4728] free_unref_page_prepare+0x738/0xa84 [ 83.935609][ T4728] free_unref_page_list+0xdc/0x730 [ 83.936470][ T4728] release_pages+0x13bc/0x16dc [ 83.937265][ T4728] __pagevec_release+0x84/0xf8 [ 83.938055][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 83.939003][ T4728] truncate_inode_pages+0x2c/0x3c [ 83.939914][ T4728] dbUnmount+0xf4/0x168 [ 83.940597][ T4728] jfs_umount+0x1c4/0x328 [ 83.941332][ T4728] jfs_put_super+0x90/0x188 [ 83.942068][ T4728] generic_shutdown_super+0x130/0x2f0 [ 83.942928][ T4728] kill_block_super+0x70/0xdc [ 83.943680][ T4728] deactivate_locked_super+0xb8/0x134 [ 83.944645][ T4728] deactivate_super+0xf0/0x110 [ 83.945412][ T4728] cleanup_mnt+0x3b8/0x46c [ 83.946193][ T4728] __cleanup_mnt+0x20/0x30 [ 83.946946][ T4728] task_work_run+0x12c/0x1d8 [ 83.947736][ T4728] do_notify_resume+0x2450/0x309c [ 83.948619][ T4728] el0_svc+0xf0/0x1d0 [ 83.949259][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 83.950115][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 83.951503][ T4728] BUG: Bad page state in process syz-executor pfn:1292bc [ 83.952634][ T4728] page:00000000326a8760 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x1292bc [ 83.954372][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 83.956092][ T4728] raw: 05ffc00000002006 fffffc0003202f48 ffff80001f0e75c0 0000000000000000 [ 83.957402][ T4728] raw: 0000000000000003 ffff0000ca85e5d0 00000000ffffffff 0000000000000000 [ 83.958863][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 83.960491][ T4728] Modules linked in: [ 83.961167][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 83.962521][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 83.964047][ T4728] Call trace: [ 83.964591][ T4728] dump_backtrace+0x0/0x458 [ 83.965395][ T4728] show_stack+0x2c/0x3c [ 83.966077][ T4728] __dump_stack+0x30/0x40 [ 83.966868][ T4728] dump_stack_lvl+0xf4/0x15c [ 83.967676][ T4728] dump_stack+0x1c/0x5c [ 83.968355][ T4728] bad_page+0x188/0x1a8 [ 83.969004][ T4728] check_free_page_bad+0xf4/0x16c [ 83.969845][ T4728] free_unref_page_prepare+0x738/0xa84 [ 83.970794][ T4728] free_unref_page_list+0xdc/0x730 [ 83.971636][ T4728] release_pages+0x13bc/0x16dc [ 83.972424][ T4728] __pagevec_release+0x84/0xf8 [ 83.973234][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 83.974164][ T4728] truncate_inode_pages+0x2c/0x3c [ 83.974969][ T4728] dbUnmount+0xf4/0x168 [ 83.975671][ T4728] jfs_umount+0x1c4/0x328 [ 83.976459][ T4728] jfs_put_super+0x90/0x188 [ 83.977232][ T4728] generic_shutdown_super+0x130/0x2f0 [ 83.978195][ T4728] kill_block_super+0x70/0xdc [ 83.978990][ T4728] deactivate_locked_super+0xb8/0x134 [ 83.979935][ T4728] deactivate_super+0xf0/0x110 [ 83.980712][ T4728] cleanup_mnt+0x3b8/0x46c [ 83.981468][ T4728] __cleanup_mnt+0x20/0x30 [ 83.982169][ T4728] task_work_run+0x12c/0x1d8 [ 83.982920][ T4728] do_notify_resume+0x2450/0x309c [ 83.983704][ T4728] el0_svc+0xf0/0x1d0 [ 83.984370][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 83.985172][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 84.096776][ T4953] loop0: detected capacity change from 0 to 32768 [ 84.159908][ T4728] BUG: Bad page state in process syz-executor pfn:10084f [ 84.161269][ T4728] page:00000000c37dd1dc refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10084f [ 84.163013][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 84.164687][ T4728] raw: 05ffc00000002006 fffffc000343bb88 ffff80001f0e75c0 0000000000000000 [ 84.166086][ T4728] raw: 0000000000000004 ffff0000c0f236c8 00000000ffffffff 0000000000000000 [ 84.167655][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 84.168767][ T4728] Modules linked in: [ 84.169520][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 84.170830][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 84.172405][ T4728] Call trace: [ 84.172913][ T4728] dump_backtrace+0x0/0x458 [ 84.173598][ T4728] show_stack+0x2c/0x3c [ 84.174285][ T4728] __dump_stack+0x30/0x40 [ 84.175015][ T4728] dump_stack_lvl+0xf4/0x15c [ 84.175743][ T4728] dump_stack+0x1c/0x5c [ 84.176459][ T4728] bad_page+0x188/0x1a8 [ 84.177111][ T4728] check_free_page_bad+0xf4/0x16c [ 84.177973][ T4728] free_unref_page_prepare+0x738/0xa84 [ 84.178890][ T4728] free_unref_page_list+0xdc/0x730 [ 84.179726][ T4728] release_pages+0x13bc/0x16dc [ 84.180526][ T4728] __pagevec_release+0x84/0xf8 [ 84.181270][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 84.182242][ T4728] truncate_inode_pages+0x2c/0x3c [ 84.183089][ T4728] dbUnmount+0xf4/0x168 [ 84.183729][ T4728] jfs_umount+0x1c4/0x328 [ 84.184388][ T4728] jfs_put_super+0x90/0x188 [ 84.185073][ T4728] generic_shutdown_super+0x130/0x2f0 [ 84.185902][ T4728] kill_block_super+0x70/0xdc [ 84.186652][ T4728] deactivate_locked_super+0xb8/0x134 [ 84.187536][ T4728] deactivate_super+0xf0/0x110 [ 84.188340][ T4728] cleanup_mnt+0x3b8/0x46c [ 84.189095][ T4728] __cleanup_mnt+0x20/0x30 [ 84.189863][ T4728] task_work_run+0x12c/0x1d8 [ 84.190628][ T4728] do_notify_resume+0x2450/0x309c [ 84.191562][ T4728] el0_svc+0xf0/0x1d0 [ 84.192224][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 84.193058][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 84.194269][ T4728] BUG: Bad page state in process syz-executor pfn:110eee [ 84.195357][ T4728] page:00000000fa01484a refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x110eee [ 84.197116][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 84.198577][ T4728] raw: 05ffc00000002006 fffffc0003092388 ffff80001f0e75c0 0000000000000000 [ 84.200849][ T4728] raw: 0000000000000003 ffff0000c0f237c0 00000000ffffffff 0000000000000000 [ 84.202251][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 84.203372][ T4728] Modules linked in: [ 84.204039][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 84.205519][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 84.207168][ T4728] Call trace: [ 84.207666][ T4728] dump_backtrace+0x0/0x458 [ 84.208420][ T4728] show_stack+0x2c/0x3c [ 84.209140][ T4728] __dump_stack+0x30/0x40 [ 84.209835][ T4728] dump_stack_lvl+0xf4/0x15c [ 84.210611][ T4728] dump_stack+0x1c/0x5c [ 84.211305][ T4728] bad_page+0x188/0x1a8 [ 84.211900][ T4728] check_free_page_bad+0xf4/0x16c [ 84.212774][ T4728] free_unref_page_prepare+0x738/0xa84 [ 84.213729][ T4728] free_unref_page_list+0xdc/0x730 [ 84.214528][ T4728] release_pages+0x13bc/0x16dc [ 84.215342][ T4728] __pagevec_release+0x84/0xf8 [ 84.216134][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 84.217045][ T4728] truncate_inode_pages+0x2c/0x3c [ 84.217879][ T4728] dbUnmount+0xf4/0x168 [ 84.218646][ T4728] jfs_umount+0x1c4/0x328 [ 84.219387][ T4728] jfs_put_super+0x90/0x188 [ 84.220127][ T4728] generic_shutdown_super+0x130/0x2f0 [ 84.221057][ T4728] kill_block_super+0x70/0xdc [ 84.221845][ T4728] deactivate_locked_super+0xb8/0x134 [ 84.222730][ T4728] deactivate_super+0xf0/0x110 [ 84.223489][ T4728] cleanup_mnt+0x3b8/0x46c [ 84.224217][ T4728] __cleanup_mnt+0x20/0x30 [ 84.224959][ T4728] task_work_run+0x12c/0x1d8 [ 84.225732][ T4728] do_notify_resume+0x2450/0x309c [ 84.226614][ T4728] el0_svc+0xf0/0x1d0 [ 84.227396][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 84.228374][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 84.354630][ T4955] loop0: detected capacity change from 0 to 32768 [ 84.420142][ T4728] BUG: Bad page state in process syz-executor pfn:10e9e3 [ 84.421392][ T4728] page:00000000936caab4 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10e9e3 [ 84.423187][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 84.424754][ T4728] raw: 05ffc00000002006 fffffc00031e6008 ffff80001f0e75c0 0000000000000000 [ 84.426046][ T4728] raw: 0000000000000004 ffff0000c8a026c8 00000000ffffffff 0000000000000000 [ 84.427311][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 84.428371][ T4728] Modules linked in: [ 84.429080][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 84.430584][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 84.432238][ T4728] Call trace: [ 84.432763][ T4728] dump_backtrace+0x0/0x458 [ 84.433477][ T4728] show_stack+0x2c/0x3c [ 84.434071][ T4728] __dump_stack+0x30/0x40 [ 84.434719][ T4728] dump_stack_lvl+0xf4/0x15c [ 84.435404][ T4728] dump_stack+0x1c/0x5c [ 84.436020][ T4728] bad_page+0x188/0x1a8 [ 84.436649][ T4728] check_free_page_bad+0xf4/0x16c [ 84.437354][ T4728] free_unref_page_prepare+0x738/0xa84 [ 84.438039][ T4728] free_unref_page_list+0xdc/0x730 [ 84.438771][ T4728] release_pages+0x13bc/0x16dc [ 84.439467][ T4728] __pagevec_release+0x84/0xf8 [ 84.440102][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 84.440923][ T4728] truncate_inode_pages+0x2c/0x3c [ 84.441721][ T4728] dbUnmount+0xf4/0x168 [ 84.442340][ T4728] jfs_umount+0x1c4/0x328 [ 84.442999][ T4728] jfs_put_super+0x90/0x188 [ 84.443717][ T4728] generic_shutdown_super+0x130/0x2f0 [ 84.444450][ T4728] kill_block_super+0x70/0xdc [ 84.445161][ T4728] deactivate_locked_super+0xb8/0x134 [ 84.445976][ T4728] deactivate_super+0xf0/0x110 [ 84.446708][ T4728] cleanup_mnt+0x3b8/0x46c [ 84.447381][ T4728] __cleanup_mnt+0x20/0x30 [ 84.448052][ T4728] task_work_run+0x12c/0x1d8 [ 84.448838][ T4728] do_notify_resume+0x2450/0x309c [ 84.449660][ T4728] el0_svc+0xf0/0x1d0 [ 84.450293][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 84.451081][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 84.452041][ T4728] BUG: Bad page state in process syz-executor pfn:107980 [ 84.453146][ T4728] page:00000000ac433f4c refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x107980 [ 84.454823][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 84.456312][ T4728] raw: 05ffc00000002006 fffffc0003410f48 ffff80001f0e75c0 0000000000000000 [ 84.457606][ T4728] raw: 0000000000000003 ffff0000c8a027c0 00000000ffffffff 0000000000000000 [ 84.459040][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 84.460593][ T4728] Modules linked in: [ 84.461200][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 84.462647][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 84.464314][ T4728] Call trace: [ 84.464810][ T4728] dump_backtrace+0x0/0x458 [ 84.465519][ T4728] show_stack+0x2c/0x3c [ 84.466161][ T4728] __dump_stack+0x30/0x40 [ 84.466862][ T4728] dump_stack_lvl+0xf4/0x15c [ 84.467587][ T4728] dump_stack+0x1c/0x5c [ 84.468218][ T4728] bad_page+0x188/0x1a8 [ 84.468918][ T4728] check_free_page_bad+0xf4/0x16c [ 84.469692][ T4728] free_unref_page_prepare+0x738/0xa84 [ 84.470520][ T4728] free_unref_page_list+0xdc/0x730 [ 84.471284][ T4728] release_pages+0x13bc/0x16dc [ 84.471977][ T4728] __pagevec_release+0x84/0xf8 [ 84.472691][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 84.473536][ T4728] truncate_inode_pages+0x2c/0x3c [ 84.474286][ T4728] dbUnmount+0xf4/0x168 [ 84.474894][ T4728] jfs_umount+0x1c4/0x328 [ 84.475542][ T4728] jfs_put_super+0x90/0x188 [ 84.476212][ T4728] generic_shutdown_super+0x130/0x2f0 [ 84.477024][ T4728] kill_block_super+0x70/0xdc [ 84.477716][ T4728] deactivate_locked_super+0xb8/0x134 [ 84.478518][ T4728] deactivate_super+0xf0/0x110 [ 84.479232][ T4728] cleanup_mnt+0x3b8/0x46c [ 84.479889][ T4728] __cleanup_mnt+0x20/0x30 [ 84.480549][ T4728] task_work_run+0x12c/0x1d8 [ 84.481333][ T4728] do_notify_resume+0x2450/0x309c [ 84.482150][ T4728] el0_svc+0xf0/0x1d0 [ 84.482761][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 84.483529][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 84.594312][ T4957] loop0: detected capacity change from 0 to 32768 [ 84.641398][ T4728] BUG: Bad page state in process syz-executor pfn:1111db [ 84.642690][ T4728] page:00000000e8ffb05c refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x1111db [ 84.644291][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 84.645919][ T4728] raw: 05ffc00000002006 fffffc0003455ac8 ffff80001f0e75c0 0000000000000000 [ 84.647255][ T4728] raw: 0000000000000004 ffff0000ef09f8b8 00000000ffffffff 0000000000000000 [ 84.648504][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 84.650776][ T4728] Modules linked in: [ 84.652438][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 84.653848][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 84.655442][ T4728] Call trace: [ 84.655973][ T4728] dump_backtrace+0x0/0x458 [ 84.656699][ T4728] show_stack+0x2c/0x3c [ 84.657298][ T4728] __dump_stack+0x30/0x40 [ 84.657950][ T4728] dump_stack_lvl+0xf4/0x15c [ 84.658595][ T4728] dump_stack+0x1c/0x5c [ 84.659198][ T4728] bad_page+0x188/0x1a8 [ 84.659930][ T4728] check_free_page_bad+0xf4/0x16c [ 84.660793][ T4728] free_unref_page_prepare+0x738/0xa84 [ 84.661697][ T4728] free_unref_page_list+0xdc/0x730 [ 84.662611][ T4728] release_pages+0x13bc/0x16dc [ 84.663425][ T4728] __pagevec_release+0x84/0xf8 [ 84.664198][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 84.665216][ T4728] truncate_inode_pages+0x2c/0x3c [ 84.666061][ T4728] dbUnmount+0xf4/0x168 [ 84.666762][ T4728] jfs_umount+0x1c4/0x328 [ 84.667466][ T4728] jfs_put_super+0x90/0x188 [ 84.668190][ T4728] generic_shutdown_super+0x130/0x2f0 [ 84.669117][ T4728] kill_block_super+0x70/0xdc [ 84.669894][ T4728] deactivate_locked_super+0xb8/0x134 [ 84.670765][ T4728] deactivate_super+0xf0/0x110 [ 84.671548][ T4728] cleanup_mnt+0x3b8/0x46c [ 84.672261][ T4728] __cleanup_mnt+0x20/0x30 [ 84.672967][ T4728] task_work_run+0x12c/0x1d8 [ 84.673787][ T4728] do_notify_resume+0x2450/0x309c [ 84.674651][ T4728] el0_svc+0xf0/0x1d0 [ 84.675318][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 84.676120][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 84.677364][ T4728] BUG: Bad page state in process syz-executor pfn:11156b [ 84.678541][ T4728] page:00000000b26cd27f refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x11156b [ 84.680368][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 84.681930][ T4728] raw: 05ffc00000002006 fffffc00033b8e08 ffff80001f0e75c0 0000000000000000 [ 84.683344][ T4728] raw: 0000000000000003 ffff0000ef09f9b0 00000000ffffffff 0000000000000000 [ 84.684810][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 84.685940][ T4728] Modules linked in: [ 84.686611][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 84.688119][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 84.689855][ T4728] Call trace: [ 84.690483][ T4728] dump_backtrace+0x0/0x458 [ 84.691250][ T4728] show_stack+0x2c/0x3c [ 84.691976][ T4728] __dump_stack+0x30/0x40 [ 84.692740][ T4728] dump_stack_lvl+0xf4/0x15c [ 84.693527][ T4728] dump_stack+0x1c/0x5c [ 84.694201][ T4728] bad_page+0x188/0x1a8 [ 84.694915][ T4728] check_free_page_bad+0xf4/0x16c [ 84.695761][ T4728] free_unref_page_prepare+0x738/0xa84 [ 84.696582][ T4728] free_unref_page_list+0xdc/0x730 [ 84.697365][ T4728] release_pages+0x13bc/0x16dc [ 84.698174][ T4728] __pagevec_release+0x84/0xf8 [ 84.698881][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 84.699778][ T4728] truncate_inode_pages+0x2c/0x3c [ 84.700552][ T4728] dbUnmount+0xf4/0x168 [ 84.701250][ T4728] jfs_umount+0x1c4/0x328 [ 84.701967][ T4728] jfs_put_super+0x90/0x188 [ 84.702690][ T4728] generic_shutdown_super+0x130/0x2f0 [ 84.703442][ T4728] kill_block_super+0x70/0xdc [ 84.704169][ T4728] deactivate_locked_super+0xb8/0x134 [ 84.705034][ T4728] deactivate_super+0xf0/0x110 [ 84.705762][ T4728] cleanup_mnt+0x3b8/0x46c [ 84.706450][ T4728] __cleanup_mnt+0x20/0x30 [ 84.707159][ T4728] task_work_run+0x12c/0x1d8 [ 84.707939][ T4728] do_notify_resume+0x2450/0x309c [ 84.708803][ T4728] el0_svc+0xf0/0x1d0 [ 84.709487][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 84.710335][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 84.815092][ T4959] loop0: detected capacity change from 0 to 32768 [ 84.877078][ T4728] BUG: Bad page state in process syz-executor pfn:1014a6 [ 84.878203][ T4728] page:00000000ef720aac refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x1014a6 [ 84.880166][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 84.881820][ T4728] raw: 05ffc00000002006 fffffc00039c03c8 ffff80001f0e75c0 0000000000000000 [ 84.883170][ T4728] raw: 0000000000000004 ffff0000caff7aa8 00000000ffffffff 0000000000000000 [ 84.884596][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 84.885802][ T4728] Modules linked in: [ 84.886498][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 84.887906][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 84.889552][ T4728] Call trace: [ 84.890114][ T4728] dump_backtrace+0x0/0x458 [ 84.890873][ T4728] show_stack+0x2c/0x3c [ 84.891601][ T4728] __dump_stack+0x30/0x40 [ 84.892339][ T4728] dump_stack_lvl+0xf4/0x15c [ 84.893168][ T4728] dump_stack+0x1c/0x5c [ 84.893848][ T4728] bad_page+0x188/0x1a8 [ 84.894521][ T4728] check_free_page_bad+0xf4/0x16c [ 84.895299][ T4728] free_unref_page_prepare+0x738/0xa84 [ 84.896281][ T4728] free_unref_page_list+0xdc/0x730 [ 84.897187][ T4728] release_pages+0x13bc/0x16dc [ 84.897995][ T4728] __pagevec_release+0x84/0xf8 [ 84.898809][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 84.899719][ T4728] truncate_inode_pages+0x2c/0x3c [ 84.900497][ T4728] dbUnmount+0xf4/0x168 [ 84.901170][ T4728] jfs_umount+0x1c4/0x328 [ 84.901943][ T4728] jfs_put_super+0x90/0x188 [ 84.902748][ T4728] generic_shutdown_super+0x130/0x2f0 [ 84.903677][ T4728] kill_block_super+0x70/0xdc [ 84.904417][ T4728] deactivate_locked_super+0xb8/0x134 [ 84.905243][ T4728] deactivate_super+0xf0/0x110 [ 84.906016][ T4728] cleanup_mnt+0x3b8/0x46c [ 84.906727][ T4728] __cleanup_mnt+0x20/0x30 [ 84.907366][ T4728] task_work_run+0x12c/0x1d8 [ 84.908097][ T4728] do_notify_resume+0x2450/0x309c [ 84.908950][ T4728] el0_svc+0xf0/0x1d0 [ 84.909580][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 84.910452][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 84.911406][ T4728] BUG: Bad page state in process syz-executor pfn:12700f [ 84.912542][ T4728] page:00000000a5949707 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x12700f [ 84.914172][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 84.915795][ T4728] raw: 05ffc00000002006 fffffc00039dac48 ffff80001f0e75c0 0000000000000000 [ 84.917163][ T4728] raw: 0000000000000003 ffff0000caff7ba0 00000000ffffffff 0000000000000000 [ 84.918599][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 84.919986][ T4728] Modules linked in: [ 84.920673][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 84.922148][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 84.923825][ T4728] Call trace: [ 84.924342][ T4728] dump_backtrace+0x0/0x458 [ 84.925085][ T4728] show_stack+0x2c/0x3c [ 84.925757][ T4728] __dump_stack+0x30/0x40 [ 84.926454][ T4728] dump_stack_lvl+0xf4/0x15c [ 84.927188][ T4728] dump_stack+0x1c/0x5c [ 84.927869][ T4728] bad_page+0x188/0x1a8 [ 84.928513][ T4728] check_free_page_bad+0xf4/0x16c [ 84.929262][ T4728] free_unref_page_prepare+0x738/0xa84 [ 84.930228][ T4728] free_unref_page_list+0xdc/0x730 [ 84.931097][ T4728] release_pages+0x13bc/0x16dc [ 84.931850][ T4728] __pagevec_release+0x84/0xf8 [ 84.932638][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 84.933605][ T4728] truncate_inode_pages+0x2c/0x3c [ 84.934498][ T4728] dbUnmount+0xf4/0x168 [ 84.935197][ T4728] jfs_umount+0x1c4/0x328 [ 84.935953][ T4728] jfs_put_super+0x90/0x188 [ 84.936691][ T4728] generic_shutdown_super+0x130/0x2f0 [ 84.937623][ T4728] kill_block_super+0x70/0xdc [ 84.938401][ T4728] deactivate_locked_super+0xb8/0x134 [ 84.939250][ T4728] deactivate_super+0xf0/0x110 [ 84.939999][ T4728] cleanup_mnt+0x3b8/0x46c [ 84.940721][ T4728] __cleanup_mnt+0x20/0x30 [ 84.941518][ T4728] task_work_run+0x12c/0x1d8 [ 84.942317][ T4728] do_notify_resume+0x2450/0x309c [ 84.943137][ T4728] el0_svc+0xf0/0x1d0 [ 84.943800][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 84.944651][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 85.094402][ T4961] loop0: detected capacity change from 0 to 32768 [ 85.152074][ T4728] BUG: Bad page state in process syz-executor pfn:11711d [ 85.153320][ T4728] page:0000000005dada07 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11711d [ 85.154968][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 85.156626][ T4728] raw: 05ffc00000002006 fffffc0003a4b288 ffff80001f0e75c0 0000000000000000 [ 85.157935][ T4728] raw: 0000000000000004 ffff0000ebe228b8 00000000ffffffff 0000000000000000 [ 85.159191][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 85.160331][ T4728] Modules linked in: [ 85.160874][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 85.162190][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 85.163648][ T4728] Call trace: [ 85.164134][ T4728] dump_backtrace+0x0/0x458 [ 85.164794][ T4728] show_stack+0x2c/0x3c [ 85.165412][ T4728] __dump_stack+0x30/0x40 [ 85.166076][ T4728] dump_stack_lvl+0xf4/0x15c [ 85.166733][ T4728] dump_stack+0x1c/0x5c [ 85.167423][ T4728] bad_page+0x188/0x1a8 [ 85.168090][ T4728] check_free_page_bad+0xf4/0x16c [ 85.168889][ T4728] free_unref_page_prepare+0x738/0xa84 [ 85.169841][ T4728] free_unref_page_list+0xdc/0x730 [ 85.170706][ T4728] release_pages+0x13bc/0x16dc [ 85.171546][ T4728] __pagevec_release+0x84/0xf8 [ 85.172356][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 85.173357][ T4728] truncate_inode_pages+0x2c/0x3c [ 85.174202][ T4728] dbUnmount+0xf4/0x168 [ 85.174938][ T4728] jfs_umount+0x1c4/0x328 [ 85.175749][ T4728] jfs_put_super+0x90/0x188 [ 85.176524][ T4728] generic_shutdown_super+0x130/0x2f0 [ 85.177472][ T4728] kill_block_super+0x70/0xdc [ 85.178242][ T4728] deactivate_locked_super+0xb8/0x134 [ 85.179133][ T4728] deactivate_super+0xf0/0x110 [ 85.179892][ T4728] cleanup_mnt+0x3b8/0x46c [ 85.180567][ T4728] __cleanup_mnt+0x20/0x30 [ 85.181255][ T4728] task_work_run+0x12c/0x1d8 [ 85.181956][ T4728] do_notify_resume+0x2450/0x309c [ 85.182717][ T4728] el0_svc+0xf0/0x1d0 [ 85.183375][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 85.184216][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 85.185361][ T4728] BUG: Bad page state in process syz-executor pfn:1292ca [ 85.186527][ T4728] page:000000006ec9b336 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x1292ca [ 85.188337][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 85.190231][ T4728] raw: 05ffc00000002006 fffffc000350e2c8 ffff80001f0e75c0 0000000000000000 [ 85.191629][ T4728] raw: 0000000000000003 ffff0000ebe229b0 00000000ffffffff 0000000000000000 [ 85.193149][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 85.194314][ T4728] Modules linked in: [ 85.194941][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 85.196454][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 85.198188][ T4728] Call trace: [ 85.198722][ T4728] dump_backtrace+0x0/0x458 [ 85.199590][ T4728] show_stack+0x2c/0x3c [ 85.200298][ T4728] __dump_stack+0x30/0x40 [ 85.201054][ T4728] dump_stack_lvl+0xf4/0x15c [ 85.201817][ T4728] dump_stack+0x1c/0x5c [ 85.202556][ T4728] bad_page+0x188/0x1a8 [ 85.203314][ T4728] check_free_page_bad+0xf4/0x16c [ 85.204259][ T4728] free_unref_page_prepare+0x738/0xa84 [ 85.205296][ T4728] free_unref_page_list+0xdc/0x730 [ 85.206143][ T4728] release_pages+0x13bc/0x16dc [ 85.206972][ T4728] __pagevec_release+0x84/0xf8 [ 85.207807][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 85.208848][ T4728] truncate_inode_pages+0x2c/0x3c [ 85.209716][ T4728] dbUnmount+0xf4/0x168 [ 85.210410][ T4728] jfs_umount+0x1c4/0x328 [ 85.211108][ T4728] jfs_put_super+0x90/0x188 [ 85.211877][ T4728] generic_shutdown_super+0x130/0x2f0 [ 85.212799][ T4728] kill_block_super+0x70/0xdc [ 85.213610][ T4728] deactivate_locked_super+0xb8/0x134 [ 85.214502][ T4728] deactivate_super+0xf0/0x110 [ 85.215406][ T4728] cleanup_mnt+0x3b8/0x46c [ 85.216155][ T4728] __cleanup_mnt+0x20/0x30 [ 85.216902][ T4728] task_work_run+0x12c/0x1d8 [ 85.217644][ T4728] do_notify_resume+0x2450/0x309c [ 85.218468][ T4728] el0_svc+0xf0/0x1d0 [ 85.219131][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 85.219922][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 85.333968][ T4963] loop0: detected capacity change from 0 to 32768 [ 85.399590][ T4728] BUG: Bad page state in process syz-executor pfn:11163e [ 85.400841][ T4728] page:00000000398f85d1 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11163e [ 85.402408][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 85.404033][ T4728] raw: 05ffc00000002006 fffffc0003205e48 ffff80001f0e75c0 0000000000000000 [ 85.405524][ T4728] raw: 0000000000000004 ffff0000db444c98 00000000ffffffff 0000000000000000 [ 85.406807][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 85.407902][ T4728] Modules linked in: [ 85.408576][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 85.410109][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 85.411800][ T4728] Call trace: [ 85.412358][ T4728] dump_backtrace+0x0/0x458 [ 85.413028][ T4728] show_stack+0x2c/0x3c [ 85.413688][ T4728] __dump_stack+0x30/0x40 [ 85.414331][ T4728] dump_stack_lvl+0xf4/0x15c [ 85.414996][ T4728] dump_stack+0x1c/0x5c [ 85.415712][ T4728] bad_page+0x188/0x1a8 [ 85.416388][ T4728] check_free_page_bad+0xf4/0x16c [ 85.417216][ T4728] free_unref_page_prepare+0x738/0xa84 [ 85.418069][ T4728] free_unref_page_list+0xdc/0x730 [ 85.418967][ T4728] release_pages+0x13bc/0x16dc [ 85.419793][ T4728] __pagevec_release+0x84/0xf8 [ 85.420573][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 85.421548][ T4728] truncate_inode_pages+0x2c/0x3c [ 85.422454][ T4728] dbUnmount+0xf4/0x168 [ 85.423130][ T4728] jfs_umount+0x1c4/0x328 [ 85.423834][ T4728] jfs_put_super+0x90/0x188 [ 85.424568][ T4728] generic_shutdown_super+0x130/0x2f0 [ 85.425422][ T4728] kill_block_super+0x70/0xdc [ 85.426211][ T4728] deactivate_locked_super+0xb8/0x134 [ 85.427141][ T4728] deactivate_super+0xf0/0x110 [ 85.427939][ T4728] cleanup_mnt+0x3b8/0x46c [ 85.428670][ T4728] __cleanup_mnt+0x20/0x30 [ 85.429429][ T4728] task_work_run+0x12c/0x1d8 [ 85.430303][ T4728] do_notify_resume+0x2450/0x309c [ 85.431125][ T4728] el0_svc+0xf0/0x1d0 [ 85.431784][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 85.432584][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 85.433837][ T4728] BUG: Bad page state in process syz-executor pfn:108179 [ 85.434930][ T4728] page:00000000607405b5 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x108179 [ 85.436678][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 85.438383][ T4728] raw: 05ffc00000002006 fffffc00039d4ec8 ffff80001f0e75c0 0000000000000000 [ 85.439930][ T4728] raw: 0000000000000003 ffff0000db444d90 00000000ffffffff 0000000000000000 [ 85.441326][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 85.442664][ T4728] Modules linked in: [ 85.443290][ T4728] CPU: 1 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 85.444644][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 85.446205][ T4728] Call trace: [ 85.446693][ T4728] dump_backtrace+0x0/0x458 [ 85.447430][ T4728] show_stack+0x2c/0x3c [ 85.448191][ T4728] __dump_stack+0x30/0x40 [ 85.448907][ T4728] dump_stack_lvl+0xf4/0x15c [ 85.449636][ T4728] dump_stack+0x1c/0x5c [ 85.450296][ T4728] bad_page+0x188/0x1a8 [ 85.450947][ T4728] check_free_page_bad+0xf4/0x16c [ 85.451718][ T4728] free_unref_page_prepare+0x738/0xa84 [ 85.452579][ T4728] free_unref_page_list+0xdc/0x730 [ 85.453392][ T4728] release_pages+0x13bc/0x16dc [ 85.454232][ T4728] __pagevec_release+0x84/0xf8 [ 85.454970][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 85.455951][ T4728] truncate_inode_pages+0x2c/0x3c [ 85.456838][ T4728] dbUnmount+0xf4/0x168 [ 85.457431][ T4728] jfs_umount+0x1c4/0x328 [ 85.458133][ T4728] jfs_put_super+0x90/0x188 [ 85.458877][ T4728] generic_shutdown_super+0x130/0x2f0 [ 85.459729][ T4728] kill_block_super+0x70/0xdc [ 85.460452][ T4728] deactivate_locked_super+0xb8/0x134 [ 85.461340][ T4728] deactivate_super+0xf0/0x110 [ 85.462102][ T4728] cleanup_mnt+0x3b8/0x46c [ 85.462813][ T4728] __cleanup_mnt+0x20/0x30 [ 85.463579][ T4728] task_work_run+0x12c/0x1d8 [ 85.464363][ T4728] do_notify_resume+0x2450/0x309c [ 85.465175][ T4728] el0_svc+0xf0/0x1d0 [ 85.465866][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 85.466717][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 85.554261][ T4965] loop0: detected capacity change from 0 to 32768 [ 85.636639][ T4728] BUG: Bad page state in process syz-executor pfn:12774c [ 85.637794][ T4728] page:000000001e2983a9 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x12774c [ 85.639903][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 85.641436][ T4728] raw: 05ffc00000002006 fffffc00034780c8 ffff80001f0e75c0 0000000000000000 [ 85.642975][ T4728] raw: 0000000000000004 ffff0000d2838aa8 00000000ffffffff 0000000000000000 [ 85.644545][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 85.645804][ T4728] Modules linked in: [ 85.646479][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 85.648019][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 85.649617][ T4728] Call trace: [ 85.650124][ T4728] dump_backtrace+0x0/0x458 [ 85.650925][ T4728] show_stack+0x2c/0x3c [ 85.651636][ T4728] __dump_stack+0x30/0x40 [ 85.652439][ T4728] dump_stack_lvl+0xf4/0x15c [ 85.653172][ T4728] dump_stack+0x1c/0x5c [ 85.653832][ T4728] bad_page+0x188/0x1a8 [ 85.654570][ T4728] check_free_page_bad+0xf4/0x16c [ 85.655410][ T4728] free_unref_page_prepare+0x738/0xa84 [ 85.656283][ T4728] free_unref_page_list+0xdc/0x730 [ 85.657131][ T4728] release_pages+0x13bc/0x16dc [ 85.657877][ T4728] __pagevec_release+0x84/0xf8 [ 85.658667][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 85.659672][ T4728] truncate_inode_pages+0x2c/0x3c [ 85.660597][ T4728] dbUnmount+0xf4/0x168 [ 85.661334][ T4728] jfs_umount+0x1c4/0x328 [ 85.662129][ T4728] jfs_put_super+0x90/0x188 [ 85.662842][ T4728] generic_shutdown_super+0x130/0x2f0 [ 85.663692][ T4728] kill_block_super+0x70/0xdc [ 85.664469][ T4728] deactivate_locked_super+0xb8/0x134 [ 85.665324][ T4728] deactivate_super+0xf0/0x110 [ 85.666110][ T4728] cleanup_mnt+0x3b8/0x46c [ 85.666873][ T4728] __cleanup_mnt+0x20/0x30 [ 85.667639][ T4728] task_work_run+0x12c/0x1d8 [ 85.668410][ T4728] do_notify_resume+0x2450/0x309c [ 85.669284][ T4728] el0_svc+0xf0/0x1d0 [ 85.669966][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 85.670849][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 85.671832][ T4728] BUG: Bad page state in process syz-executor pfn:111e03 [ 85.672944][ T4728] page:00000000813e01ae refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x111e03 [ 85.674652][ T4728] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 85.676239][ T4728] raw: 05ffc00000002006 fffffc00039dda48 ffff80001f0e75c0 0000000000000000 [ 85.677613][ T4728] raw: 0000000000000003 ffff0000d2838ba0 00000000ffffffff 0000000000000000 [ 85.678941][ T4728] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 85.681362][ T4728] Modules linked in: [ 85.682002][ T4728] CPU: 0 PID: 4728 Comm: syz-executor Tainted: G B syzkaller #0 [ 85.683465][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 85.685221][ T4728] Call trace: [ 85.685743][ T4728] dump_backtrace+0x0/0x458 [ 85.686441][ T4728] show_stack+0x2c/0x3c [ 85.687104][ T4728] __dump_stack+0x30/0x40 [ 85.687800][ T4728] dump_stack_lvl+0xf4/0x15c [ 85.688486][ T4728] dump_stack+0x1c/0x5c [ 85.689222][ T4728] bad_page+0x188/0x1a8 [ 85.689997][ T4728] check_free_page_bad+0xf4/0x16c [ 85.690793][ T4728] free_unref_page_prepare+0x738/0xa84 [ 85.691775][ T4728] free_unref_page_list+0xdc/0x730 [ 85.692630][ T4728] release_pages+0x13bc/0x16dc [ 85.693480][ T4728] __pagevec_release+0x84/0xf8 [ 85.694293][ T4728] truncate_inode_pages_range+0x2c8/0xa04 [ 85.695366][ T4728] truncate_inode_pages+0x2c/0x3c [ 85.696244][ T4728] dbUnmount+0xf4/0x168 [ 85.696923][ T4728] jfs_umount+0x1c4/0x328 [ 85.697712][ T4728] jfs_put_super+0x90/0x188 [ 85.698458][ T4728] generic_shutdown_super+0x130/0x2f0 [ 85.699353][ T4728] kill_block_super+0x70/0xdc [ 85.700182][ T4728] deactivate_locked_super+0xb8/0x134 [ 85.701123][ T4728] deactivate_super+0xf0/0x110 [ 85.701943][ T4728] cleanup_mnt+0x3b8/0x46c [ 85.702705][ T4728] __cleanup_mnt+0x20/0x30 [ 85.703434][ T4728] task_work_run+0x12c/0x1d8 [ 85.704228][ T4728] do_notify_resume+0x2450/0x309c [ 85.705131][ T4728] el0_svc+0xf0/0x1d0 [ 85.705838][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 85.706743][ T4728] el0t_64_sync+0x1a0/0x1a4