[ 36.023748][ T399] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 38.312890][ T399] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 38.361683][ T399] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 38.422865][ T399] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 39.652430][ T399] device hsr_slave_0 left promiscuous mode [ 39.688237][ T399] device hsr_slave_1 left promiscuous mode [ 39.788333][ T399] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 39.789685][ T399] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 39.791493][ T399] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 39.792738][ T399] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 39.794208][ T399] device bridge_slave_1 left promiscuous mode [ 39.795535][ T399] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.829435][ T399] device bridge_slave_0 left promiscuous mode [ 39.830569][ T399] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.978139][ T399] device veth1_macvtap left promiscuous mode [ 39.979280][ T399] device veth0_macvtap left promiscuous mode [ 39.980213][ T399] device veth1_vlan left promiscuous mode [ 39.981233][ T399] device veth0_vlan left promiscuous mode [ 40.091768][ T399] team0 (unregistering): Port device team_slave_1 removed [ 40.096300][ T399] team0 (unregistering): Port device team_slave_0 removed [ 40.102972][ T399] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 40.142400][ T399] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 40.264670][ T399] bond0 (unregistering): Released all slaves Warning: Permanently added '10.128.1.106' (ED25519) to the list of known hosts. 1970/01/01 00:00:40 ignoring optional flag "type"="gce" 1970/01/01 00:00:40 parsed 1 programs [ 40.841056][ T4246] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS 1970/01/01 00:00:40 executed programs: 0 [ 40.914774][ T4254] chnl_net:caif_netlink_parms(): no params data found [ 40.934580][ T4254] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.935862][ T4254] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.937476][ T4254] device bridge_slave_0 entered promiscuous mode [ 40.941029][ T4254] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.942195][ T4254] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.943861][ T4254] device bridge_slave_1 entered promiscuous mode [ 40.953926][ T4254] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 40.956792][ T4254] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 40.965794][ T4254] team0: Port device team_slave_0 added [ 40.967604][ T4254] team0: Port device team_slave_1 added [ 40.976040][ T4254] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 40.977243][ T4254] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 40.982080][ T4254] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 40.984483][ T4254] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 40.985561][ T4254] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 40.989743][ T4254] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 41.040397][ T4254] device hsr_slave_0 entered promiscuous mode [ 41.108108][ T4254] device hsr_slave_1 entered promiscuous mode [ 41.690028][ T4254] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 41.729215][ T4254] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 41.789149][ T4254] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 41.838266][ T4254] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 41.906430][ T4254] 8021q: adding VLAN 0 to HW filter on device bond0 [ 41.912711][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 41.914481][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 41.917525][ T4254] 8021q: adding VLAN 0 to HW filter on device team0 [ 41.921946][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 41.923977][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 41.925654][ T342] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.926825][ T342] bridge0: port 1(bridge_slave_0) entered forwarding state [ 41.930400][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 41.942662][ T4254] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 41.944427][ T4254] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 41.947405][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 41.949374][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 41.950897][ T342] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.952083][ T342] bridge0: port 2(bridge_slave_1) entered forwarding state [ 41.953476][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 41.955324][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 41.957160][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 41.959694][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 41.961321][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 41.963137][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 41.964686][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 41.966148][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 41.968534][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 41.970365][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 41.972418][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 41.974057][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 42.031699][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 42.033147][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 42.037159][ T4254] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 42.057742][ T4254] device veth0_vlan entered promiscuous mode [ 42.059548][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 42.061287][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 42.063067][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 42.064670][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 42.066675][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 42.069139][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 42.076479][ T4254] device veth1_vlan entered promiscuous mode [ 42.085488][ T4254] device veth0_macvtap entered promiscuous mode [ 42.088389][ T4254] device veth1_macvtap entered promiscuous mode [ 42.091032][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 42.092745][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 42.094297][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 42.095907][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 42.097510][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 42.105335][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 42.107856][ T4254] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 42.111451][ T4254] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 42.113259][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 42.114991][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 42.116664][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 42.120008][ T342] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 42.122970][ T4254] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 42.124513][ T4254] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 42.126083][ T4254] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 42.127539][ T4254] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 42.267267][ T4366] loop0: detected capacity change from 0 to 32768 [ 42.309051][ T4366] ======================================================= [ 42.309051][ T4366] WARNING: The mand mount option has been deprecated and [ 42.309051][ T4366] and is ignored by this kernel. Remove the mand [ 42.309051][ T4366] option from the mount to silence this warning. [ 42.309051][ T4366] ======================================================= [ 42.339481][ T4366] ERROR: (device loop0): dbDiscardAG: -EIO [ 42.339481][ T4366] [ 42.341134][ T4366] attempt to access beyond end of device [ 42.341134][ T4366] loop0: rw=2051, want=18014398509498368, limit=32768 [ 42.343276][ T4366] JFS: sb_issue_discard(00000000c9c7bf58, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 42.345078][ T4366] blkno = 8000000000400, nblocks = 400 [ 42.346224][ T4366] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 42.346224][ T4366] [ 42.360305][ T4254] BUG: Bad page state in process syz-executor.0 pfn:10bcaa [ 42.361618][ T4254] page:00000000e6fb7c96 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10bcaa [ 42.363314][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 42.365059][ T4254] raw: 05ffc00000002006 fffffc0003225e48 ffff80001f5075a0 0000000000000000 [ 42.366700][ T4254] raw: 0000000000000004 ffff0000cbd1d9b0 00000000ffffffff 0000000000000000 [ 42.370045][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 42.371303][ T4254] Modules linked in: [ 42.371954][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Not tainted syzkaller #0 [ 42.373247][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 42.374957][ T4254] Call trace: [ 42.375496][ T4254] dump_backtrace+0x0/0x458 [ 42.376243][ T4254] show_stack+0x2c/0x3c [ 42.376932][ T4254] __dump_stack+0x30/0x40 [ 42.377646][ T4254] dump_stack_lvl+0xf4/0x15c [ 42.378391][ T4254] dump_stack+0x1c/0x5c [ 42.379135][ T4254] bad_page+0x188/0x1a8 [ 42.379889][ T4254] check_free_page_bad+0xf4/0x16c [ 42.380721][ T4254] free_unref_page_prepare+0x748/0xa94 [ 42.381715][ T4254] free_unref_page_list+0xdc/0x740 [ 42.382584][ T4254] release_pages+0x13a0/0x16c0 [ 42.383375][ T4254] __pagevec_release+0x84/0xf8 [ 42.384171][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 42.385102][ T4254] truncate_inode_pages+0x2c/0x3c [ 42.385959][ T4254] dbUnmount+0xf4/0x168 [ 42.386686][ T4254] jfs_umount+0x1c4/0x324 [ 42.387390][ T4254] jfs_put_super+0x90/0x18c [ 42.388195][ T4254] generic_shutdown_super+0x138/0x2f8 [ 42.389075][ T4254] kill_block_super+0x78/0xe0 [ 42.389869][ T4254] deactivate_locked_super+0xc0/0x13c [ 42.390796][ T4254] deactivate_super+0xf0/0x110 [ 42.391606][ T4254] cleanup_mnt+0x3bc/0x470 [ 42.392346][ T4254] __cleanup_mnt+0x20/0x30 [ 42.393115][ T4254] task_work_run+0x13c/0x1e8 [ 42.393845][ T4254] do_notify_resume+0x2488/0x30a8 [ 42.394695][ T4254] el0_svc+0xf0/0x1d0 [ 42.395334][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 42.396171][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 42.400084][ T4254] Disabling lock debugging due to kernel taint [ 42.550901][ T4401] loop0: detected capacity change from 0 to 32768 [ 42.625203][ T4401] ERROR: (device loop0): dbDiscardAG: -EIO [ 42.625203][ T4401] [ 42.626619][ T4401] attempt to access beyond end of device [ 42.626619][ T4401] loop0: rw=2051, want=18014398509498368, limit=32768 [ 42.629110][ T4401] JFS: sb_issue_discard(00000000a130733c, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 42.630817][ T4401] blkno = 8000000000400, nblocks = 400 [ 42.631741][ T4401] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 42.631741][ T4401] [ 42.639332][ T4254] BUG: Bad page state in process syz-executor.0 pfn:1078d5 [ 42.640590][ T4254] page:00000000cfe0d3e1 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x1078d5 [ 42.642210][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 42.643876][ T4254] raw: 05ffc00000002006 fffffc00032b4888 ffff80001f5075a0 0000000000000000 [ 42.645314][ T4254] raw: 0000000000000004 ffff0000c5c914d8 00000000ffffffff 0000000000000000 [ 42.646760][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 42.656500][ T4254] Modules linked in: [ 42.657276][ T4254] CPU: 1 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 42.658912][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 42.660762][ T4254] Call trace: [ 42.661318][ T4254] dump_backtrace+0x0/0x458 [ 42.662092][ T4254] show_stack+0x2c/0x3c [ 42.662836][ T4254] __dump_stack+0x30/0x40 [ 42.663625][ T4254] dump_stack_lvl+0xf4/0x15c [ 42.664440][ T4254] dump_stack+0x1c/0x5c [ 42.665195][ T4254] bad_page+0x188/0x1a8 [ 42.665952][ T4254] check_free_page_bad+0xf4/0x16c [ 42.666831][ T4254] free_unref_page_prepare+0x748/0xa94 [ 42.667815][ T4254] free_unref_page_list+0xdc/0x740 [ 42.668727][ T4254] release_pages+0x13a0/0x16c0 [ 42.669541][ T4254] __pagevec_release+0x84/0xf8 [ 42.670334][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 42.671307][ T4254] truncate_inode_pages+0x2c/0x3c [ 42.672147][ T4254] dbUnmount+0xf4/0x168 [ 42.673000][ T4254] jfs_umount+0x1c4/0x324 [ 42.673906][ T4254] jfs_put_super+0x90/0x18c [ 42.674843][ T4254] generic_shutdown_super+0x138/0x2f8 [ 42.675891][ T4254] kill_block_super+0x78/0xe0 [ 42.676764][ T4254] deactivate_locked_super+0xc0/0x13c [ 42.677738][ T4254] deactivate_super+0xf0/0x110 [ 42.678617][ T4254] cleanup_mnt+0x3bc/0x470 [ 42.679421][ T4254] __cleanup_mnt+0x20/0x30 [ 42.680219][ T4254] task_work_run+0x13c/0x1e8 [ 42.681025][ T4254] do_notify_resume+0x2488/0x30a8 [ 42.681857][ T4254] el0_svc+0xf0/0x1d0 [ 42.682539][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 42.683419][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 42.811627][ T4435] loop0: detected capacity change from 0 to 32768 [ 42.839796][ T4435] ERROR: (device loop0): dbDiscardAG: -EIO [ 42.839796][ T4435] [ 42.841146][ T4435] attempt to access beyond end of device [ 42.841146][ T4435] loop0: rw=2051, want=18014398509498368, limit=32768 [ 42.843265][ T4435] JFS: sb_issue_discard(0000000024c8b7ec, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 42.846097][ T4435] blkno = 8000000000400, nblocks = 400 [ 42.847228][ T4435] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 42.847228][ T4435] [ 42.853405][ T4254] BUG: Bad page state in process syz-executor.0 pfn:109ce1 [ 42.854606][ T4254] page:0000000058858e6e refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x109ce1 [ 42.856255][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 42.857842][ T4254] raw: 05ffc00000002006 fffffc000346a508 ffff80001f5075a0 0000000000000000 [ 42.859654][ T4254] raw: 0000000000000004 ffff0000db80f9b0 00000000ffffffff 0000000000000000 [ 42.861572][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 42.863036][ T4254] Modules linked in: [ 42.863965][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 42.865497][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 42.867153][ T4254] Call trace: [ 42.867674][ T4254] dump_backtrace+0x0/0x458 [ 42.868459][ T4254] show_stack+0x2c/0x3c [ 42.869196][ T4254] __dump_stack+0x30/0x40 [ 42.870008][ T4254] dump_stack_lvl+0xf4/0x15c [ 42.870823][ T4254] dump_stack+0x1c/0x5c [ 42.871539][ T4254] bad_page+0x188/0x1a8 [ 42.872330][ T4254] check_free_page_bad+0xf4/0x16c [ 42.873263][ T4254] free_unref_page_prepare+0x748/0xa94 [ 42.874237][ T4254] free_unref_page_list+0xdc/0x740 [ 42.875108][ T4254] release_pages+0x13a0/0x16c0 [ 42.875946][ T4254] __pagevec_release+0x84/0xf8 [ 42.876823][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 42.877903][ T4254] truncate_inode_pages+0x2c/0x3c [ 42.878747][ T4254] dbUnmount+0xf4/0x168 [ 42.879473][ T4254] jfs_umount+0x1c4/0x324 [ 42.880185][ T4254] jfs_put_super+0x90/0x18c [ 42.880937][ T4254] generic_shutdown_super+0x138/0x2f8 [ 42.881876][ T4254] kill_block_super+0x78/0xe0 [ 42.882684][ T4254] deactivate_locked_super+0xc0/0x13c [ 42.883593][ T4254] deactivate_super+0xf0/0x110 [ 42.884405][ T4254] cleanup_mnt+0x3bc/0x470 [ 42.885191][ T4254] __cleanup_mnt+0x20/0x30 [ 42.885904][ T4254] task_work_run+0x13c/0x1e8 [ 42.886671][ T4254] do_notify_resume+0x2488/0x30a8 [ 42.887484][ T4254] el0_svc+0xf0/0x1d0 [ 42.888150][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 42.889083][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 42.898206][ T4075] Bluetooth: hci0: command 0x0409 tx timeout [ 43.010930][ T4461] loop0: detected capacity change from 0 to 32768 [ 43.022615][ T4461] ERROR: (device loop0): dbDiscardAG: -EIO [ 43.022615][ T4461] [ 43.031180][ T4461] attempt to access beyond end of device [ 43.031180][ T4461] loop0: rw=2051, want=18014398509498368, limit=32768 [ 43.033437][ T4461] JFS: sb_issue_discard(000000007e38b1ab, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 43.035278][ T4461] blkno = 8000000000400, nblocks = 400 [ 43.036299][ T4461] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 43.036299][ T4461] [ 43.043532][ T4254] BUG: Bad page state in process syz-executor.0 pfn:11b21d [ 43.044871][ T4254] page:00000000c1dc0cd8 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11b21d [ 43.046516][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 43.048542][ T4254] raw: 05ffc00000002006 fffffc0003678fc8 ffff80001f5075a0 0000000000000000 [ 43.049967][ T4254] raw: 0000000000000004 ffff0000dafad000 00000000ffffffff 0000000000000000 [ 43.051355][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 43.052618][ T4254] Modules linked in: [ 43.053296][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 43.054772][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 43.056315][ T4254] Call trace: [ 43.056825][ T4254] dump_backtrace+0x0/0x458 [ 43.057579][ T4254] show_stack+0x2c/0x3c [ 43.058287][ T4254] __dump_stack+0x30/0x40 [ 43.059015][ T4254] dump_stack_lvl+0xf4/0x15c [ 43.059831][ T4254] dump_stack+0x1c/0x5c [ 43.060593][ T4254] bad_page+0x188/0x1a8 [ 43.061402][ T4254] check_free_page_bad+0xf4/0x16c [ 43.062396][ T4254] free_unref_page_prepare+0x748/0xa94 [ 43.063357][ T4254] free_unref_page_list+0xdc/0x740 [ 43.064288][ T4254] release_pages+0x13a0/0x16c0 [ 43.065071][ T4254] __pagevec_release+0x84/0xf8 [ 43.065951][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 43.066940][ T4254] truncate_inode_pages+0x2c/0x3c [ 43.067827][ T4254] dbUnmount+0xf4/0x168 [ 43.068542][ T4254] jfs_umount+0x1c4/0x324 [ 43.069311][ T4254] jfs_put_super+0x90/0x18c [ 43.070059][ T4254] generic_shutdown_super+0x138/0x2f8 [ 43.070993][ T4254] kill_block_super+0x78/0xe0 [ 43.071836][ T4254] deactivate_locked_super+0xc0/0x13c [ 43.072809][ T4254] deactivate_super+0xf0/0x110 [ 43.073619][ T4254] cleanup_mnt+0x3bc/0x470 [ 43.074341][ T4254] __cleanup_mnt+0x20/0x30 [ 43.075075][ T4254] task_work_run+0x13c/0x1e8 [ 43.075841][ T4254] do_notify_resume+0x2488/0x30a8 [ 43.076696][ T4254] el0_svc+0xf0/0x1d0 [ 43.077394][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 43.078207][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 43.206545][ T4485] loop0: detected capacity change from 0 to 32768 [ 43.268003][ T4485] ERROR: (device loop0): dbDiscardAG: -EIO [ 43.268003][ T4485] [ 43.269595][ T4485] attempt to access beyond end of device [ 43.269595][ T4485] loop0: rw=2051, want=18014398509498368, limit=32768 [ 43.272010][ T4485] JFS: sb_issue_discard(00000000880a9d9c, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 43.273743][ T4485] blkno = 8000000000400, nblocks = 400 [ 43.274671][ T4485] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 43.274671][ T4485] [ 43.282402][ T4254] BUG: Bad page state in process syz-executor.0 pfn:114c98 [ 43.283624][ T4254] page:00000000887635a0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x114c98 [ 43.285352][ T4254] flags: 0x5ffc00000002004(uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 43.286837][ T4254] raw: 05ffc00000002004 fffffc0003701808 ffff80001f5075a0 0000000000000000 [ 43.288481][ T4254] raw: 0000000000000004 ffff0000dafad2e8 00000000ffffffff 0000000000000000 [ 43.289864][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 43.291477][ T4254] Modules linked in: [ 43.292137][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 43.293648][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 43.295313][ T4254] Call trace: [ 43.295861][ T4254] dump_backtrace+0x0/0x458 [ 43.296798][ T4254] show_stack+0x2c/0x3c [ 43.297468][ T4254] __dump_stack+0x30/0x40 [ 43.298242][ T4254] dump_stack_lvl+0xf4/0x15c [ 43.299048][ T4254] dump_stack+0x1c/0x5c [ 43.299791][ T4254] bad_page+0x188/0x1a8 [ 43.300526][ T4254] check_free_page_bad+0xf4/0x16c [ 43.301464][ T4254] free_unref_page_prepare+0x748/0xa94 [ 43.302423][ T4254] free_unref_page_list+0xdc/0x740 [ 43.303324][ T4254] release_pages+0x13a0/0x16c0 [ 43.304196][ T4254] __pagevec_release+0x84/0xf8 [ 43.305014][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 43.305973][ T4254] truncate_inode_pages+0x2c/0x3c [ 43.306806][ T4254] dbUnmount+0xf4/0x168 [ 43.307536][ T4254] jfs_umount+0x1c4/0x324 [ 43.308311][ T4254] jfs_put_super+0x90/0x18c [ 43.309132][ T4254] generic_shutdown_super+0x138/0x2f8 [ 43.310040][ T4254] kill_block_super+0x78/0xe0 [ 43.310854][ T4254] deactivate_locked_super+0xc0/0x13c [ 43.311787][ T4254] deactivate_super+0xf0/0x110 [ 43.312586][ T4254] cleanup_mnt+0x3bc/0x470 [ 43.313329][ T4254] __cleanup_mnt+0x20/0x30 [ 43.314069][ T4254] task_work_run+0x13c/0x1e8 [ 43.314877][ T4254] do_notify_resume+0x2488/0x30a8 [ 43.315750][ T4254] el0_svc+0xf0/0x1d0 [ 43.316464][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 43.317328][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 43.434322][ T4488] loop0: detected capacity change from 0 to 32768 [ 43.485971][ T4488] ERROR: (device loop0): dbDiscardAG: -EIO [ 43.485971][ T4488] [ 43.487563][ T4488] attempt to access beyond end of device [ 43.487563][ T4488] loop0: rw=2051, want=18014398509498368, limit=32768 [ 43.490384][ T4488] JFS: sb_issue_discard(00000000a7ebe76b, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 43.492268][ T4488] blkno = 8000000000400, nblocks = 400 [ 43.493562][ T4488] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 43.493562][ T4488] [ 43.499360][ T4254] BUG: Bad page state in process syz-executor.0 pfn:111925 [ 43.500560][ T4254] page:000000009cda678e refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x111925 [ 43.502354][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 43.503889][ T4254] raw: 05ffc00000002006 fffffc00036c7e08 ffff80001f5075a0 0000000000000000 [ 43.505400][ T4254] raw: 0000000000000004 ffff0000cad03c98 00000000ffffffff 0000000000000000 [ 43.506806][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 43.508443][ T4254] Modules linked in: [ 43.509028][ T4254] CPU: 1 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 43.510531][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 43.512077][ T4254] Call trace: [ 43.512606][ T4254] dump_backtrace+0x0/0x458 [ 43.513469][ T4254] show_stack+0x2c/0x3c [ 43.514218][ T4254] __dump_stack+0x30/0x40 [ 43.514979][ T4254] dump_stack_lvl+0xf4/0x15c [ 43.515795][ T4254] dump_stack+0x1c/0x5c [ 43.516459][ T4254] bad_page+0x188/0x1a8 [ 43.517123][ T4254] check_free_page_bad+0xf4/0x16c [ 43.517990][ T4254] free_unref_page_prepare+0x748/0xa94 [ 43.518942][ T4254] free_unref_page_list+0xdc/0x740 [ 43.519867][ T4254] release_pages+0x13a0/0x16c0 [ 43.520761][ T4254] __pagevec_release+0x84/0xf8 [ 43.521655][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 43.522719][ T4254] truncate_inode_pages+0x2c/0x3c [ 43.523505][ T4254] dbUnmount+0xf4/0x168 [ 43.524244][ T4254] jfs_umount+0x1c4/0x324 [ 43.524984][ T4254] jfs_put_super+0x90/0x18c [ 43.525765][ T4254] generic_shutdown_super+0x138/0x2f8 [ 43.526706][ T4254] kill_block_super+0x78/0xe0 [ 43.527495][ T4254] deactivate_locked_super+0xc0/0x13c [ 43.528385][ T4254] deactivate_super+0xf0/0x110 [ 43.529206][ T4254] cleanup_mnt+0x3bc/0x470 [ 43.530013][ T4254] __cleanup_mnt+0x20/0x30 [ 43.530796][ T4254] task_work_run+0x13c/0x1e8 [ 43.531604][ T4254] do_notify_resume+0x2488/0x30a8 [ 43.532492][ T4254] el0_svc+0xf0/0x1d0 [ 43.533176][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 43.534060][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 43.675760][ T4490] loop0: detected capacity change from 0 to 32768 [ 43.721817][ T4490] ERROR: (device loop0): dbDiscardAG: -EIO [ 43.721817][ T4490] [ 43.723290][ T4490] attempt to access beyond end of device [ 43.723290][ T4490] loop0: rw=2051, want=18014398509498368, limit=32768 [ 43.725078][ T4490] JFS: sb_issue_discard(000000000f62ab0d, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 43.726784][ T4490] blkno = 8000000000400, nblocks = 400 [ 43.727762][ T4490] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 43.727762][ T4490] [ 43.733306][ T4254] BUG: Bad page state in process syz-executor.0 pfn:1096b0 [ 43.734463][ T4254] page:0000000095fcfe18 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x1096b0 [ 43.736273][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 43.738340][ T4254] raw: 05ffc00000002006 fffffc00031a6e88 ffff80001f5075a0 0000000000000000 [ 43.739815][ T4254] raw: 0000000000000004 ffff0000c90b7000 00000000ffffffff 0000000000000000 [ 43.741232][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 43.742459][ T4254] Modules linked in: [ 43.743100][ T4254] CPU: 1 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 43.744541][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 43.746142][ T4254] Call trace: [ 43.746701][ T4254] dump_backtrace+0x0/0x458 [ 43.747413][ T4254] show_stack+0x2c/0x3c [ 43.748145][ T4254] __dump_stack+0x30/0x40 [ 43.749020][ T4254] dump_stack_lvl+0xf4/0x15c [ 43.749926][ T4254] dump_stack+0x1c/0x5c [ 43.750774][ T4254] bad_page+0x188/0x1a8 [ 43.751507][ T4254] check_free_page_bad+0xf4/0x16c [ 43.752338][ T4254] free_unref_page_prepare+0x748/0xa94 [ 43.753329][ T4254] free_unref_page_list+0xdc/0x740 [ 43.754175][ T4254] release_pages+0x13a0/0x16c0 [ 43.755098][ T4254] __pagevec_release+0x84/0xf8 [ 43.755903][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 43.756972][ T4254] truncate_inode_pages+0x2c/0x3c [ 43.757897][ T4254] dbUnmount+0xf4/0x168 [ 43.758707][ T4254] jfs_umount+0x1c4/0x324 [ 43.759584][ T4254] jfs_put_super+0x90/0x18c [ 43.760436][ T4254] generic_shutdown_super+0x138/0x2f8 [ 43.761504][ T4254] kill_block_super+0x78/0xe0 [ 43.762421][ T4254] deactivate_locked_super+0xc0/0x13c [ 43.763485][ T4254] deactivate_super+0xf0/0x110 [ 43.764385][ T4254] cleanup_mnt+0x3bc/0x470 [ 43.765276][ T4254] __cleanup_mnt+0x20/0x30 [ 43.766149][ T4254] task_work_run+0x13c/0x1e8 [ 43.767048][ T4254] do_notify_resume+0x2488/0x30a8 [ 43.767945][ T4254] el0_svc+0xf0/0x1d0 [ 43.768678][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 43.769546][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 43.893788][ T4493] loop0: detected capacity change from 0 to 32768 [ 43.943314][ T4493] ERROR: (device loop0): dbDiscardAG: -EIO [ 43.943314][ T4493] [ 43.944902][ T4493] attempt to access beyond end of device [ 43.944902][ T4493] loop0: rw=2051, want=18014398509498368, limit=32768 [ 43.947156][ T4493] JFS: sb_issue_discard(00000000839aa68a, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 43.948986][ T4493] blkno = 8000000000400, nblocks = 400 [ 43.949853][ T4493] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 43.949853][ T4493] [ 43.955052][ T4254] BUG: Bad page state in process syz-executor.0 pfn:11e55f [ 43.956341][ T4254] page:00000000a96ac60e refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11e55f [ 43.958368][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 43.960137][ T4254] raw: 05ffc00000002006 fffffc000367c1c8 ffff80001f5075a0 0000000000000000 [ 43.961588][ T4254] raw: 0000000000000004 ffff0000c90b7aa8 00000000ffffffff 0000000000000000 [ 43.963132][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 43.964474][ T4254] Modules linked in: [ 43.965194][ T4254] CPU: 1 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 43.966800][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 43.968491][ T4254] Call trace: [ 43.969061][ T4254] dump_backtrace+0x0/0x458 [ 43.969819][ T4254] show_stack+0x2c/0x3c [ 43.970583][ T4254] __dump_stack+0x30/0x40 [ 43.971360][ T4254] dump_stack_lvl+0xf4/0x15c [ 43.972194][ T4254] dump_stack+0x1c/0x5c [ 43.972970][ T4254] bad_page+0x188/0x1a8 [ 43.973725][ T4254] check_free_page_bad+0xf4/0x16c [ 43.974662][ T4254] free_unref_page_prepare+0x748/0xa94 [ 43.975658][ T4254] free_unref_page_list+0xdc/0x740 [ 43.976543][ T4254] release_pages+0x13a0/0x16c0 [ 43.977409][ T4254] __pagevec_release+0x84/0xf8 [ 43.978290][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 43.979305][ T4254] truncate_inode_pages+0x2c/0x3c [ 43.980184][ T4254] dbUnmount+0xf4/0x168 [ 43.981032][ T4254] jfs_umount+0x1c4/0x324 [ 43.981880][ T4254] jfs_put_super+0x90/0x18c [ 43.982774][ T4254] generic_shutdown_super+0x138/0x2f8 [ 43.983811][ T4254] kill_block_super+0x78/0xe0 [ 43.984738][ T4254] deactivate_locked_super+0xc0/0x13c [ 43.985697][ T4254] deactivate_super+0xf0/0x110 [ 43.986549][ T4254] cleanup_mnt+0x3bc/0x470 [ 43.987359][ T4254] __cleanup_mnt+0x20/0x30 [ 43.988249][ T4254] task_work_run+0x13c/0x1e8 [ 43.989111][ T4254] do_notify_resume+0x2488/0x30a8 [ 43.990099][ T4254] el0_svc+0xf0/0x1d0 [ 43.990777][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 43.991595][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 44.112601][ T4495] loop0: detected capacity change from 0 to 32768 [ 44.152399][ T4495] ERROR: (device loop0): dbDiscardAG: -EIO [ 44.152399][ T4495] [ 44.153921][ T4495] attempt to access beyond end of device [ 44.153921][ T4495] loop0: rw=2051, want=18014398509498368, limit=32768 [ 44.156157][ T4495] JFS: sb_issue_discard(000000008460ded8, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 44.158318][ T4495] blkno = 8000000000400, nblocks = 400 [ 44.159315][ T4495] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 44.159315][ T4495] [ 44.164500][ T4254] BUG: Bad page state in process syz-executor.0 pfn:10902b [ 44.165688][ T4254] page:00000000875421dc refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10902b [ 44.167362][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 44.169813][ T4254] raw: 05ffc00000002006 fffffc0003220048 ffff80001f5075a0 0000000000000000 [ 44.171304][ T4254] raw: 0000000000000004 ffff0000db9e15d0 00000000ffffffff 0000000000000000 [ 44.172834][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 44.174019][ T4254] Modules linked in: [ 44.174741][ T4254] CPU: 1 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 44.176324][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 44.178149][ T4254] Call trace: [ 44.178767][ T4254] dump_backtrace+0x0/0x458 [ 44.179631][ T4254] show_stack+0x2c/0x3c [ 44.180438][ T4254] __dump_stack+0x30/0x40 [ 44.181302][ T4254] dump_stack_lvl+0xf4/0x15c [ 44.182144][ T4254] dump_stack+0x1c/0x5c [ 44.182939][ T4254] bad_page+0x188/0x1a8 [ 44.183740][ T4254] check_free_page_bad+0xf4/0x16c [ 44.184697][ T4254] free_unref_page_prepare+0x748/0xa94 [ 44.185693][ T4254] free_unref_page_list+0xdc/0x740 [ 44.186487][ T4254] release_pages+0x13a0/0x16c0 [ 44.187339][ T4254] __pagevec_release+0x84/0xf8 [ 44.188139][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 44.189131][ T4254] truncate_inode_pages+0x2c/0x3c [ 44.190032][ T4254] dbUnmount+0xf4/0x168 [ 44.190744][ T4254] jfs_umount+0x1c4/0x324 [ 44.191421][ T4254] jfs_put_super+0x90/0x18c [ 44.192198][ T4254] generic_shutdown_super+0x138/0x2f8 [ 44.193116][ T4254] kill_block_super+0x78/0xe0 [ 44.194085][ T4254] deactivate_locked_super+0xc0/0x13c [ 44.195115][ T4254] deactivate_super+0xf0/0x110 [ 44.196083][ T4254] cleanup_mnt+0x3bc/0x470 [ 44.196906][ T4254] __cleanup_mnt+0x20/0x30 [ 44.197784][ T4254] task_work_run+0x13c/0x1e8 [ 44.198562][ T4254] do_notify_resume+0x2488/0x30a8 [ 44.199419][ T4254] el0_svc+0xf0/0x1d0 [ 44.200227][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 44.201080][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 44.342225][ T4497] loop0: detected capacity change from 0 to 32768 [ 44.393172][ T4497] ERROR: (device loop0): dbDiscardAG: -EIO [ 44.393172][ T4497] [ 44.394625][ T4497] attempt to access beyond end of device [ 44.394625][ T4497] loop0: rw=2051, want=18014398509498368, limit=32768 [ 44.396502][ T4497] JFS: sb_issue_discard(000000003fa77975, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 44.398482][ T4497] blkno = 8000000000400, nblocks = 400 [ 44.399439][ T4497] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 44.399439][ T4497] [ 44.403761][ T4254] BUG: Bad page state in process syz-executor.0 pfn:113b2f [ 44.405128][ T4254] page:000000000130d034 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x113b2f [ 44.406853][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 44.408883][ T4254] raw: 05ffc00000002006 fffffc00033fd5c8 ffff80001f5075a0 0000000000000000 [ 44.410283][ T4254] raw: 0000000000000004 ffff0000c662f5d0 00000000ffffffff 0000000000000000 [ 44.411665][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 44.412855][ T4254] Modules linked in: [ 44.413479][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 44.414933][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 44.416565][ T4254] Call trace: [ 44.417073][ T4254] dump_backtrace+0x0/0x458 [ 44.417799][ T4254] show_stack+0x2c/0x3c [ 44.418598][ T4254] __dump_stack+0x30/0x40 [ 44.419350][ T4254] dump_stack_lvl+0xf4/0x15c [ 44.420162][ T4254] dump_stack+0x1c/0x5c [ 44.421034][ T4254] bad_page+0x188/0x1a8 [ 44.421904][ T4254] check_free_page_bad+0xf4/0x16c [ 44.422899][ T4254] free_unref_page_prepare+0x748/0xa94 [ 44.423847][ T4254] free_unref_page_list+0xdc/0x740 [ 44.424706][ T4254] release_pages+0x13a0/0x16c0 [ 44.425504][ T4254] __pagevec_release+0x84/0xf8 [ 44.426416][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 44.427506][ T4254] truncate_inode_pages+0x2c/0x3c [ 44.428436][ T4254] dbUnmount+0xf4/0x168 [ 44.429163][ T4254] jfs_umount+0x1c4/0x324 [ 44.429906][ T4254] jfs_put_super+0x90/0x18c [ 44.430795][ T4254] generic_shutdown_super+0x138/0x2f8 [ 44.431912][ T4254] kill_block_super+0x78/0xe0 [ 44.432899][ T4254] deactivate_locked_super+0xc0/0x13c [ 44.433855][ T4254] deactivate_super+0xf0/0x110 [ 44.434662][ T4254] cleanup_mnt+0x3bc/0x470 [ 44.435426][ T4254] __cleanup_mnt+0x20/0x30 [ 44.436160][ T4254] task_work_run+0x13c/0x1e8 [ 44.436998][ T4254] do_notify_resume+0x2488/0x30a8 [ 44.437899][ T4254] el0_svc+0xf0/0x1d0 [ 44.438544][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 44.439451][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 44.603957][ T4499] ERROR: (device loop0): dbDiscardAG: -EIO [ 44.603957][ T4499] [ 44.605549][ T4499] JFS: sb_issue_discard(000000006b21f7ca, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 44.607166][ T4499] blkno = 8000000000400, nblocks = 400 [ 44.608334][ T4499] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 44.608334][ T4499] [ 44.613605][ T4254] BUG: Bad page state in process syz-executor.0 pfn:102585 [ 44.614898][ T4254] page:00000000454ca7d6 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x102585 [ 44.616774][ T4254] flags: 0x5ffc00000002004(uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 44.618612][ T4254] raw: 05ffc00000002004 fffffc000328fac8 ffff80001f5075a0 0000000000000000 [ 44.620030][ T4254] raw: 0000000000000004 ffff0000c662f8b8 00000000ffffffff 0000000000000000 [ 44.621360][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 44.622451][ T4254] Modules linked in: [ 44.623084][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 44.624633][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 44.626466][ T4254] Call trace: [ 44.626984][ T4254] dump_backtrace+0x0/0x458 [ 44.627861][ T4254] show_stack+0x2c/0x3c [ 44.628608][ T4254] __dump_stack+0x30/0x40 [ 44.629364][ T4254] dump_stack_lvl+0xf4/0x15c [ 44.630203][ T4254] dump_stack+0x1c/0x5c [ 44.630966][ T4254] bad_page+0x188/0x1a8 [ 44.631683][ T4254] check_free_page_bad+0xf4/0x16c [ 44.632543][ T4254] free_unref_page_prepare+0x748/0xa94 [ 44.633573][ T4254] free_unref_page_list+0xdc/0x740 [ 44.634438][ T4254] release_pages+0x13a0/0x16c0 [ 44.635212][ T4254] __pagevec_release+0x84/0xf8 [ 44.636050][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 44.637013][ T4254] truncate_inode_pages+0x2c/0x3c [ 44.637959][ T4254] dbUnmount+0xf4/0x168 [ 44.638662][ T4254] jfs_umount+0x1c4/0x324 [ 44.639529][ T4254] jfs_put_super+0x90/0x18c [ 44.640306][ T4254] generic_shutdown_super+0x138/0x2f8 [ 44.641212][ T4254] kill_block_super+0x78/0xe0 [ 44.641984][ T4254] deactivate_locked_super+0xc0/0x13c [ 44.642914][ T4254] deactivate_super+0xf0/0x110 [ 44.643718][ T4254] cleanup_mnt+0x3bc/0x470 [ 44.644466][ T4254] __cleanup_mnt+0x20/0x30 [ 44.645267][ T4254] task_work_run+0x13c/0x1e8 [ 44.646147][ T4254] do_notify_resume+0x2488/0x30a8 [ 44.647068][ T4254] el0_svc+0xf0/0x1d0 [ 44.647773][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 44.648666][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 44.817095][ T4501] ERROR: (device loop0): dbDiscardAG: -EIO [ 44.817095][ T4501] [ 44.818647][ T4501] JFS: sb_issue_discard(00000000020467b5, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 44.820429][ T4501] blkno = 8000000000400, nblocks = 400 [ 44.821258][ T4501] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 44.821258][ T4501] [ 44.825948][ T4254] BUG: Bad page state in process syz-executor.0 pfn:113df5 [ 44.827221][ T4254] page:000000009ed28ffb refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x113df5 [ 44.829546][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 44.831085][ T4254] raw: 05ffc00000002006 fffffc0003695008 ffff80001f5075a0 0000000000000000 [ 44.832544][ T4254] raw: 0000000000000004 ffff0000c9eba3e0 00000000ffffffff 0000000000000000 [ 44.834072][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 44.835238][ T4254] Modules linked in: [ 44.835864][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 44.837298][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 44.838936][ T4254] Call trace: [ 44.839501][ T4254] dump_backtrace+0x0/0x458 [ 44.840417][ T4254] show_stack+0x2c/0x3c [ 44.841157][ T4254] __dump_stack+0x30/0x40 [ 44.841968][ T4254] dump_stack_lvl+0xf4/0x15c [ 44.842809][ T4254] dump_stack+0x1c/0x5c [ 44.843559][ T4254] bad_page+0x188/0x1a8 [ 44.844314][ T4254] check_free_page_bad+0xf4/0x16c [ 44.845210][ T4254] free_unref_page_prepare+0x748/0xa94 [ 44.846113][ T4254] free_unref_page_list+0xdc/0x740 [ 44.846966][ T4254] release_pages+0x13a0/0x16c0 [ 44.847839][ T4254] __pagevec_release+0x84/0xf8 [ 44.848666][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 44.849787][ T4254] truncate_inode_pages+0x2c/0x3c [ 44.850616][ T4254] dbUnmount+0xf4/0x168 [ 44.851373][ T4254] jfs_umount+0x1c4/0x324 [ 44.852253][ T4254] jfs_put_super+0x90/0x18c [ 44.853112][ T4254] generic_shutdown_super+0x138/0x2f8 [ 44.854051][ T4254] kill_block_super+0x78/0xe0 [ 44.854753][ T4254] deactivate_locked_super+0xc0/0x13c [ 44.855687][ T4254] deactivate_super+0xf0/0x110 [ 44.856487][ T4254] cleanup_mnt+0x3bc/0x470 [ 44.857234][ T4254] __cleanup_mnt+0x20/0x30 [ 44.858007][ T4254] task_work_run+0x13c/0x1e8 [ 44.858753][ T4254] do_notify_resume+0x2488/0x30a8 [ 44.859782][ T4254] el0_svc+0xf0/0x1d0 [ 44.860463][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 44.861324][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 44.957998][ T4075] Bluetooth: hci0: command 0x041b tx timeout [ 45.033183][ T4503] ERROR: (device loop0): dbDiscardAG: -EIO [ 45.033183][ T4503] [ 45.034698][ T4503] JFS: sb_issue_discard(00000000ff77d18e, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 45.036660][ T4503] blkno = 8000000000400, nblocks = 400 [ 45.037600][ T4503] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 45.037600][ T4503] [ 45.044480][ T4254] BUG: Bad page state in process syz-executor.0 pfn:10e58e [ 45.045641][ T4254] page:000000001c727c88 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10e58e [ 45.047487][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 45.049785][ T4254] raw: 05ffc00000002006 fffffc00033f8e08 ffff80001f5075a0 0000000000000000 [ 45.051217][ T4254] raw: 0000000000000004 ffff0000c28268b8 00000000ffffffff 0000000000000000 [ 45.052639][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 45.053924][ T4254] Modules linked in: [ 45.054643][ T4254] CPU: 1 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 45.056065][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 45.057966][ T4254] Call trace: [ 45.058603][ T4254] dump_backtrace+0x0/0x458 [ 45.059499][ T4254] show_stack+0x2c/0x3c [ 45.060330][ T4254] __dump_stack+0x30/0x40 [ 45.061259][ T4254] dump_stack_lvl+0xf4/0x15c [ 45.062084][ T4254] dump_stack+0x1c/0x5c [ 45.062811][ T4254] bad_page+0x188/0x1a8 [ 45.063547][ T4254] check_free_page_bad+0xf4/0x16c [ 45.064446][ T4254] free_unref_page_prepare+0x748/0xa94 [ 45.065466][ T4254] free_unref_page_list+0xdc/0x740 [ 45.066457][ T4254] release_pages+0x13a0/0x16c0 [ 45.067305][ T4254] __pagevec_release+0x84/0xf8 [ 45.068132][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 45.069170][ T4254] truncate_inode_pages+0x2c/0x3c [ 45.070032][ T4254] dbUnmount+0xf4/0x168 [ 45.070758][ T4254] jfs_umount+0x1c4/0x324 [ 45.071426][ T4254] jfs_put_super+0x90/0x18c [ 45.072216][ T4254] generic_shutdown_super+0x138/0x2f8 [ 45.073160][ T4254] kill_block_super+0x78/0xe0 [ 45.073969][ T4254] deactivate_locked_super+0xc0/0x13c [ 45.074910][ T4254] deactivate_super+0xf0/0x110 [ 45.075734][ T4254] cleanup_mnt+0x3bc/0x470 [ 45.076522][ T4254] __cleanup_mnt+0x20/0x30 [ 45.077317][ T4254] task_work_run+0x13c/0x1e8 [ 45.078185][ T4254] do_notify_resume+0x2488/0x30a8 [ 45.079112][ T4254] el0_svc+0xf0/0x1d0 [ 45.079841][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 45.080690][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 45.273292][ T4505] ERROR: (device loop0): dbDiscardAG: -EIO [ 45.273292][ T4505] [ 45.274688][ T4505] JFS: sb_issue_discard(00000000a6eb4ba1, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 45.276378][ T4505] blkno = 8000000000400, nblocks = 400 [ 45.277445][ T4505] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 45.277445][ T4505] [ 45.284501][ T4254] BUG: Bad page state in process syz-executor.0 pfn:107891 [ 45.285877][ T4254] page:0000000012dcc5d7 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x107891 [ 45.287638][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 45.289868][ T4254] raw: 05ffc00000002006 fffffc00033773c8 ffff80001f5075a0 0000000000000000 [ 45.291195][ T4254] raw: 0000000000000004 ffff0000ca4b83e0 00000000ffffffff 0000000000000000 [ 45.292812][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 45.293925][ T4254] Modules linked in: [ 45.294595][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 45.296130][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 45.297696][ T4254] Call trace: [ 45.298271][ T4254] dump_backtrace+0x0/0x458 [ 45.299056][ T4254] show_stack+0x2c/0x3c [ 45.299920][ T4254] __dump_stack+0x30/0x40 [ 45.300827][ T4254] dump_stack_lvl+0xf4/0x15c [ 45.301769][ T4254] dump_stack+0x1c/0x5c [ 45.302502][ T4254] bad_page+0x188/0x1a8 [ 45.303270][ T4254] check_free_page_bad+0xf4/0x16c [ 45.304296][ T4254] free_unref_page_prepare+0x748/0xa94 [ 45.305260][ T4254] free_unref_page_list+0xdc/0x740 [ 45.306147][ T4254] release_pages+0x13a0/0x16c0 [ 45.306973][ T4254] __pagevec_release+0x84/0xf8 [ 45.307754][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 45.308816][ T4254] truncate_inode_pages+0x2c/0x3c [ 45.309673][ T4254] dbUnmount+0xf4/0x168 [ 45.310431][ T4254] jfs_umount+0x1c4/0x324 [ 45.311180][ T4254] jfs_put_super+0x90/0x18c [ 45.311977][ T4254] generic_shutdown_super+0x138/0x2f8 [ 45.312925][ T4254] kill_block_super+0x78/0xe0 [ 45.313704][ T4254] deactivate_locked_super+0xc0/0x13c [ 45.314630][ T4254] deactivate_super+0xf0/0x110 [ 45.315454][ T4254] cleanup_mnt+0x3bc/0x470 [ 45.316191][ T4254] __cleanup_mnt+0x20/0x30 [ 45.316971][ T4254] task_work_run+0x13c/0x1e8 [ 45.317772][ T4254] do_notify_resume+0x2488/0x30a8 [ 45.318641][ T4254] el0_svc+0xf0/0x1d0 [ 45.319305][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 45.320137][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 45.493409][ T4507] ERROR: (device loop0): dbDiscardAG: -EIO [ 45.493409][ T4507] [ 45.494836][ T4507] JFS: sb_issue_discard(000000005ed67591, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 45.496716][ T4507] blkno = 8000000000400, nblocks = 400 [ 45.497734][ T4507] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 45.497734][ T4507] [ 45.503202][ T4254] BUG: Bad page state in process syz-executor.0 pfn:108cad [ 45.504488][ T4254] page:00000000216043b6 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x108cad [ 45.506125][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 45.507722][ T4254] raw: 05ffc00000002006 fffffc0003030848 ffff80001f5075a0 0000000000000000 [ 45.509767][ T4254] raw: 0000000000000004 ffff0000c9ebae88 00000000ffffffff 0000000000000000 [ 45.511256][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 45.512402][ T4254] Modules linked in: [ 45.513047][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 45.514586][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 45.516223][ T4254] Call trace: [ 45.516736][ T4254] dump_backtrace+0x0/0x458 [ 45.517529][ T4254] show_stack+0x2c/0x3c [ 45.518243][ T4254] __dump_stack+0x30/0x40 [ 45.519015][ T4254] dump_stack_lvl+0xf4/0x15c [ 45.519981][ T4254] dump_stack+0x1c/0x5c [ 45.520731][ T4254] bad_page+0x188/0x1a8 [ 45.521544][ T4254] check_free_page_bad+0xf4/0x16c [ 45.522404][ T4254] free_unref_page_prepare+0x748/0xa94 [ 45.523368][ T4254] free_unref_page_list+0xdc/0x740 [ 45.524283][ T4254] release_pages+0x13a0/0x16c0 [ 45.525123][ T4254] __pagevec_release+0x84/0xf8 [ 45.525897][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 45.526903][ T4254] truncate_inode_pages+0x2c/0x3c [ 45.527800][ T4254] dbUnmount+0xf4/0x168 [ 45.528490][ T4254] jfs_umount+0x1c4/0x324 [ 45.529235][ T4254] jfs_put_super+0x90/0x18c [ 45.530025][ T4254] generic_shutdown_super+0x138/0x2f8 [ 45.531133][ T4254] kill_block_super+0x78/0xe0 [ 45.531994][ T4254] deactivate_locked_super+0xc0/0x13c [ 45.532937][ T4254] deactivate_super+0xf0/0x110 [ 45.533789][ T4254] cleanup_mnt+0x3bc/0x470 [ 45.534570][ T4254] __cleanup_mnt+0x20/0x30 [ 45.535342][ T4254] task_work_run+0x13c/0x1e8 [ 45.536177][ T4254] do_notify_resume+0x2488/0x30a8 [ 45.537095][ T4254] el0_svc+0xf0/0x1d0 [ 45.537800][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 45.538663][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 45.733614][ T4509] ERROR: (device loop0): dbDiscardAG: -EIO [ 45.733614][ T4509] [ 45.735257][ T4509] JFS: sb_issue_discard(000000009d71d2e0, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 45.737325][ T4509] blkno = 8000000000400, nblocks = 400 [ 45.738356][ T4509] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 45.738356][ T4509] [ 45.743922][ T4254] BUG: Bad page state in process syz-executor.0 pfn:11a20f [ 45.745086][ T4254] page:000000001fff1cc3 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11a20f [ 45.746699][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 45.748768][ T4254] raw: 05ffc00000002006 fffffc000308bf48 ffff80001f5075a0 0000000000000000 [ 45.750322][ T4254] raw: 0000000000000004 ffff0000ca4b8e88 00000000ffffffff 0000000000000000 [ 45.751747][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 45.753128][ T4254] Modules linked in: [ 45.753884][ T4254] CPU: 1 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 45.755469][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 45.757287][ T4254] Call trace: [ 45.757900][ T4254] dump_backtrace+0x0/0x458 [ 45.758785][ T4254] show_stack+0x2c/0x3c [ 45.759517][ T4254] __dump_stack+0x30/0x40 [ 45.760391][ T4254] dump_stack_lvl+0xf4/0x15c [ 45.761251][ T4254] dump_stack+0x1c/0x5c [ 45.761945][ T4254] bad_page+0x188/0x1a8 [ 45.762728][ T4254] check_free_page_bad+0xf4/0x16c [ 45.763579][ T4254] free_unref_page_prepare+0x748/0xa94 [ 45.764560][ T4254] free_unref_page_list+0xdc/0x740 [ 45.765403][ T4254] release_pages+0x13a0/0x16c0 [ 45.766251][ T4254] __pagevec_release+0x84/0xf8 [ 45.767232][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 45.768205][ T4254] truncate_inode_pages+0x2c/0x3c [ 45.769105][ T4254] dbUnmount+0xf4/0x168 [ 45.769862][ T4254] jfs_umount+0x1c4/0x324 [ 45.770640][ T4254] jfs_put_super+0x90/0x18c [ 45.771445][ T4254] generic_shutdown_super+0x138/0x2f8 [ 45.772424][ T4254] kill_block_super+0x78/0xe0 [ 45.773260][ T4254] deactivate_locked_super+0xc0/0x13c [ 45.774246][ T4254] deactivate_super+0xf0/0x110 [ 45.775120][ T4254] cleanup_mnt+0x3bc/0x470 [ 45.776033][ T4254] __cleanup_mnt+0x20/0x30 [ 45.776939][ T4254] task_work_run+0x13c/0x1e8 [ 45.777808][ T4254] do_notify_resume+0x2488/0x30a8 [ 45.778725][ T4254] el0_svc+0xf0/0x1d0 [ 45.779469][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 45.780403][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 45.935110][ T4511] ERROR: (device loop0): dbDiscardAG: -EIO [ 45.935110][ T4511] [ 45.936724][ T4511] JFS: sb_issue_discard(000000002236739b, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 45.939013][ T4511] blkno = 8000000000400, nblocks = 400 [ 45.939953][ T4511] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 45.939953][ T4511] 1970/01/01 00:00:45 executed programs: 17 [ 45.945515][ T4254] BUG: Bad page state in process syz-executor.0 pfn:105cf3 [ 45.946745][ T4254] page:000000008b49bdb7 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x105cf3 [ 45.948859][ T4254] flags: 0x5ffc00000002004(uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 45.950289][ T4254] raw: 05ffc00000002004 fffffc0003567788 ffff80001f5075a0 0000000000000000 [ 45.951941][ T4254] raw: 0000000000000004 ffff0000c8c099b0 00000000ffffffff 0000000000000000 [ 45.953393][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 45.954781][ T4254] Modules linked in: [ 45.955478][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 45.957186][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 45.959045][ T4254] Call trace: [ 45.959586][ T4254] dump_backtrace+0x0/0x458 [ 45.960373][ T4254] show_stack+0x2c/0x3c [ 45.961178][ T4254] __dump_stack+0x30/0x40 [ 45.961987][ T4254] dump_stack_lvl+0xf4/0x15c [ 45.962793][ T4254] dump_stack+0x1c/0x5c [ 45.963534][ T4254] bad_page+0x188/0x1a8 [ 45.964311][ T4254] check_free_page_bad+0xf4/0x16c [ 45.965227][ T4254] free_unref_page_prepare+0x748/0xa94 [ 45.966222][ T4254] free_unref_page_list+0xdc/0x740 [ 45.967170][ T4254] release_pages+0x13a0/0x16c0 [ 45.967965][ T4254] __pagevec_release+0x84/0xf8 [ 45.968946][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 45.970078][ T4254] truncate_inode_pages+0x2c/0x3c [ 45.971001][ T4254] dbUnmount+0xf4/0x168 [ 45.971690][ T4254] jfs_umount+0x1c4/0x324 [ 45.972480][ T4254] jfs_put_super+0x90/0x18c [ 45.973238][ T4254] generic_shutdown_super+0x138/0x2f8 [ 45.974344][ T4254] kill_block_super+0x78/0xe0 [ 45.975241][ T4254] deactivate_locked_super+0xc0/0x13c [ 45.976313][ T4254] deactivate_super+0xf0/0x110 [ 45.977145][ T4254] cleanup_mnt+0x3bc/0x470 [ 45.977892][ T4254] __cleanup_mnt+0x20/0x30 [ 45.978744][ T4254] task_work_run+0x13c/0x1e8 [ 45.979517][ T4254] do_notify_resume+0x2488/0x30a8 [ 45.980383][ T4254] el0_svc+0xf0/0x1d0 [ 45.981082][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 45.981971][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 46.139978][ T4513] ERROR: (device loop0): dbDiscardAG: -EIO [ 46.139978][ T4513] [ 46.141609][ T4513] JFS: sb_issue_discard(0000000078d03192, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 46.143543][ T4513] blkno = 8000000000400, nblocks = 400 [ 46.144541][ T4513] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 46.144541][ T4513] [ 46.149676][ T4254] BUG: Bad page state in process syz-executor.0 pfn:112964 [ 46.150880][ T4254] page:00000000dc8f8ee0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x112964 [ 46.152540][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 46.154174][ T4254] raw: 05ffc00000002006 fffffc0003687788 ffff80001f5075a0 0000000000000000 [ 46.155520][ T4254] raw: 0000000000000004 ffff0000d2f4c4d8 00000000ffffffff 0000000000000000 [ 46.157006][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 46.159015][ T4254] Modules linked in: [ 46.159673][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 46.161230][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 46.162810][ T4254] Call trace: [ 46.163314][ T4254] dump_backtrace+0x0/0x458 [ 46.164014][ T4254] show_stack+0x2c/0x3c [ 46.164697][ T4254] __dump_stack+0x30/0x40 [ 46.165385][ T4254] dump_stack_lvl+0xf4/0x15c [ 46.166162][ T4254] dump_stack+0x1c/0x5c [ 46.166831][ T4254] bad_page+0x188/0x1a8 [ 46.167486][ T4254] check_free_page_bad+0xf4/0x16c [ 46.168273][ T4254] free_unref_page_prepare+0x748/0xa94 [ 46.169182][ T4254] free_unref_page_list+0xdc/0x740 [ 46.169987][ T4254] release_pages+0x13a0/0x16c0 [ 46.170779][ T4254] __pagevec_release+0x84/0xf8 [ 46.171623][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 46.172646][ T4254] truncate_inode_pages+0x2c/0x3c [ 46.173498][ T4254] dbUnmount+0xf4/0x168 [ 46.174168][ T4254] jfs_umount+0x1c4/0x324 [ 46.174863][ T4254] jfs_put_super+0x90/0x18c [ 46.175681][ T4254] generic_shutdown_super+0x138/0x2f8 [ 46.176674][ T4254] kill_block_super+0x78/0xe0 [ 46.177487][ T4254] deactivate_locked_super+0xc0/0x13c [ 46.178394][ T4254] deactivate_super+0xf0/0x110 [ 46.179266][ T4254] cleanup_mnt+0x3bc/0x470 [ 46.180045][ T4254] __cleanup_mnt+0x20/0x30 [ 46.180776][ T4254] task_work_run+0x13c/0x1e8 [ 46.181516][ T4254] do_notify_resume+0x2488/0x30a8 [ 46.182384][ T4254] el0_svc+0xf0/0x1d0 [ 46.183040][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 46.183909][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 46.395652][ T4515] ERROR: (device loop0): dbDiscardAG: -EIO [ 46.395652][ T4515] [ 46.397106][ T4515] JFS: sb_issue_discard(00000000ff334ed3, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 46.399030][ T4515] blkno = 8000000000400, nblocks = 400 [ 46.399874][ T4515] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 46.399874][ T4515] [ 46.407443][ T4516] BUG: Bad page state in process syz-executor.0 pfn:11a687 [ 46.408766][ T4516] page:00000000a5a689f2 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11a687 [ 46.410376][ T4516] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 46.411864][ T4516] raw: 05ffc00000002006 fffffc000369a148 ffff80001f4877a0 0000000000000000 [ 46.413171][ T4516] raw: 0000000000000004 ffff0000cb93f9b0 00000000ffffffff 0000000000000000 [ 46.414598][ T4516] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 46.415914][ T4516] Modules linked in: [ 46.416628][ T4516] CPU: 1 PID: 4516 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 46.418279][ T4516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 46.420087][ T4516] Call trace: [ 46.420648][ T4516] dump_backtrace+0x0/0x458 [ 46.421473][ T4516] show_stack+0x2c/0x3c [ 46.422222][ T4516] __dump_stack+0x30/0x40 [ 46.423002][ T4516] dump_stack_lvl+0xf4/0x15c [ 46.423900][ T4516] dump_stack+0x1c/0x5c [ 46.424680][ T4516] bad_page+0x188/0x1a8 [ 46.425519][ T4516] check_free_page_bad+0xf4/0x16c [ 46.426437][ T4516] free_unref_page_prepare+0x748/0xa94 [ 46.427385][ T4516] free_unref_page_list+0xdc/0x740 [ 46.428243][ T4516] release_pages+0x13a0/0x16c0 [ 46.429059][ T4516] __pagevec_lru_add+0x1290/0x1598 [ 46.429942][ T4516] lru_cache_add+0x470/0x6dc [ 46.430750][ T4516] lru_cache_add_inactive_or_unevictable+0x130/0x2f0 [ 46.431943][ T4516] wp_page_copy+0x950/0x13dc [ 46.432711][ T4516] do_wp_page+0x6d0/0x994 [ 46.433450][ T4516] handle_mm_fault+0x1668/0x2aac [ 46.434318][ T4516] do_page_fault+0x690/0xad0 [ 46.435140][ T4516] do_mem_abort+0x6c/0x1b0 [ 46.435940][ T4516] el0_da+0x90/0x1ec [ 46.436636][ T4516] el0t_64_sync_handler+0xd8/0xe4 [ 46.437554][ T4516] el0t_64_sync+0x1a0/0x1a4 [ 46.519621][ T4517] ERROR: (device loop0): dbDiscardAG: -EIO [ 46.519621][ T4517] [ 46.521038][ T4517] JFS: sb_issue_discard(00000000fe774afd, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 46.523006][ T4517] blkno = 8000000000400, nblocks = 400 [ 46.523964][ T4517] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 46.523964][ T4517] [ 46.530050][ T4254] BUG: Bad page state in process syz-executor.0 pfn:11a41f [ 46.531293][ T4254] page:00000000c2ccf64c refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11a41f [ 46.532888][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 46.534421][ T4254] raw: 05ffc00000002006 fffffc00033fef88 ffff80001f5075a0 0000000000000000 [ 46.535891][ T4254] raw: 0000000000000004 ffff0000d60354d8 00000000ffffffff 0000000000000000 [ 46.537535][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 46.539217][ T4254] Modules linked in: [ 46.539904][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 46.541424][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 46.543030][ T4254] Call trace: [ 46.543565][ T4254] dump_backtrace+0x0/0x458 [ 46.544288][ T4254] show_stack+0x2c/0x3c [ 46.544977][ T4254] __dump_stack+0x30/0x40 [ 46.545663][ T4254] dump_stack_lvl+0xf4/0x15c [ 46.546356][ T4254] dump_stack+0x1c/0x5c [ 46.546993][ T4254] bad_page+0x188/0x1a8 [ 46.547657][ T4254] check_free_page_bad+0xf4/0x16c [ 46.548550][ T4254] free_unref_page_prepare+0x748/0xa94 [ 46.549557][ T4254] free_unref_page_list+0xdc/0x740 [ 46.550453][ T4254] release_pages+0x13a0/0x16c0 [ 46.551286][ T4254] __pagevec_release+0x84/0xf8 [ 46.552070][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 46.553057][ T4254] truncate_inode_pages+0x2c/0x3c [ 46.553896][ T4254] dbUnmount+0xf4/0x168 [ 46.554611][ T4254] jfs_umount+0x1c4/0x324 [ 46.555371][ T4254] jfs_put_super+0x90/0x18c [ 46.556153][ T4254] generic_shutdown_super+0x138/0x2f8 [ 46.557088][ T4254] kill_block_super+0x78/0xe0 [ 46.557908][ T4254] deactivate_locked_super+0xc0/0x13c [ 46.558824][ T4254] deactivate_super+0xf0/0x110 [ 46.559651][ T4254] cleanup_mnt+0x3bc/0x470 [ 46.560375][ T4254] __cleanup_mnt+0x20/0x30 [ 46.561200][ T4254] task_work_run+0x13c/0x1e8 [ 46.562072][ T4254] do_notify_resume+0x2488/0x30a8 [ 46.563013][ T4254] el0_svc+0xf0/0x1d0 [ 46.563699][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 46.564603][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 46.753426][ T4519] ERROR: (device loop0): dbDiscardAG: -EIO [ 46.753426][ T4519] [ 46.755108][ T4519] JFS: sb_issue_discard(000000002a87aeb8, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 46.757001][ T4519] blkno = 8000000000400, nblocks = 400 [ 46.757956][ T4519] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 46.757956][ T4519] [ 46.764462][ T4254] BUG: Bad page state in process syz-executor.0 pfn:10a2bd [ 46.765903][ T4254] page:0000000015ee6b58 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10a2bd [ 46.767836][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 46.769852][ T4254] raw: 05ffc00000002006 fffffc000341d008 ffff80001f5075a0 0000000000000000 [ 46.771257][ T4254] raw: 0000000000000004 ffff0000d3b2d000 00000000ffffffff 0000000000000000 [ 46.772720][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 46.773958][ T4254] Modules linked in: [ 46.774640][ T4254] CPU: 1 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 46.776343][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 46.778174][ T4254] Call trace: [ 46.778768][ T4254] dump_backtrace+0x0/0x458 [ 46.779587][ T4254] show_stack+0x2c/0x3c [ 46.780301][ T4254] __dump_stack+0x30/0x40 [ 46.781033][ T4254] dump_stack_lvl+0xf4/0x15c [ 46.781818][ T4254] dump_stack+0x1c/0x5c [ 46.782557][ T4254] bad_page+0x188/0x1a8 [ 46.783355][ T4254] check_free_page_bad+0xf4/0x16c [ 46.784221][ T4254] free_unref_page_prepare+0x748/0xa94 [ 46.785129][ T4254] free_unref_page_list+0xdc/0x740 [ 46.785920][ T4254] release_pages+0x13a0/0x16c0 [ 46.786647][ T4254] __pagevec_release+0x84/0xf8 [ 46.787407][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 46.788437][ T4254] truncate_inode_pages+0x2c/0x3c [ 46.789405][ T4254] dbUnmount+0xf4/0x168 [ 46.790215][ T4254] jfs_umount+0x1c4/0x324 [ 46.791051][ T4254] jfs_put_super+0x90/0x18c [ 46.791851][ T4254] generic_shutdown_super+0x138/0x2f8 [ 46.792899][ T4254] kill_block_super+0x78/0xe0 [ 46.793729][ T4254] deactivate_locked_super+0xc0/0x13c [ 46.794689][ T4254] deactivate_super+0xf0/0x110 [ 46.795605][ T4254] cleanup_mnt+0x3bc/0x470 [ 46.796371][ T4254] __cleanup_mnt+0x20/0x30 [ 46.797087][ T4254] task_work_run+0x13c/0x1e8 [ 46.797895][ T4254] do_notify_resume+0x2488/0x30a8 [ 46.798832][ T4254] el0_svc+0xf0/0x1d0 [ 46.799505][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 46.800329][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 46.952752][ T4521] ERROR: (device loop0): dbDiscardAG: -EIO [ 46.952752][ T4521] [ 46.954151][ T4521] JFS: sb_issue_discard(0000000044313a09, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 46.955816][ T4521] blkno = 8000000000400, nblocks = 400 [ 46.956567][ T4521] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 46.956567][ T4521] [ 46.960749][ T4254] BUG: Bad page state in process syz-executor.0 pfn:10acaa [ 46.961997][ T4254] page:00000000e32b3772 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10acaa [ 46.963493][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 46.965001][ T4254] raw: 05ffc00000002006 fffffc00034abc48 ffff80001f5075a0 0000000000000000 [ 46.966438][ T4254] raw: 0000000000000004 ffff0000d30cc000 00000000ffffffff 0000000000000000 [ 46.967786][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 46.969093][ T4254] Modules linked in: [ 46.969911][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 46.971481][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 46.973210][ T4254] Call trace: [ 46.973807][ T4254] dump_backtrace+0x0/0x458 [ 46.974549][ T4254] show_stack+0x2c/0x3c [ 46.975214][ T4254] __dump_stack+0x30/0x40 [ 46.975969][ T4254] dump_stack_lvl+0xf4/0x15c [ 46.976754][ T4254] dump_stack+0x1c/0x5c [ 46.977341][ T4254] bad_page+0x188/0x1a8 [ 46.977930][ T4254] check_free_page_bad+0xf4/0x16c [ 46.978809][ T4254] free_unref_page_prepare+0x748/0xa94 [ 46.979697][ T4254] free_unref_page_list+0xdc/0x740 [ 46.980610][ T4254] release_pages+0x13a0/0x16c0 [ 46.981398][ T4254] __pagevec_release+0x84/0xf8 [ 46.982229][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 46.983257][ T4254] truncate_inode_pages+0x2c/0x3c [ 46.984085][ T4254] dbUnmount+0xf4/0x168 [ 46.984823][ T4254] jfs_umount+0x1c4/0x324 [ 46.985604][ T4254] jfs_put_super+0x90/0x18c [ 46.986363][ T4254] generic_shutdown_super+0x138/0x2f8 [ 46.987302][ T4254] kill_block_super+0x78/0xe0 [ 46.988160][ T4254] deactivate_locked_super+0xc0/0x13c [ 46.989083][ T4254] deactivate_super+0xf0/0x110 [ 46.989910][ T4254] cleanup_mnt+0x3bc/0x470 [ 46.990705][ T4254] __cleanup_mnt+0x20/0x30 [ 46.991499][ T4254] task_work_run+0x13c/0x1e8 [ 46.992302][ T4254] do_notify_resume+0x2488/0x30a8 [ 46.993229][ T4254] el0_svc+0xf0/0x1d0 [ 46.993953][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 46.994837][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 47.038136][ T7] Bluetooth: hci0: command 0x040f tx timeout [ 47.170873][ T4523] ERROR: (device loop0): dbDiscardAG: -EIO [ 47.170873][ T4523] [ 47.172474][ T4523] JFS: sb_issue_discard(00000000a7ba7ed7, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 47.174167][ T4523] blkno = 8000000000400, nblocks = 400 [ 47.175158][ T4523] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 47.175158][ T4523] [ 47.180539][ T4254] BUG: Bad page state in process syz-executor.0 pfn:10ce30 [ 47.181787][ T4254] page:000000000dd1ed8b refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10ce30 [ 47.183559][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 47.185266][ T4254] raw: 05ffc00000002006 fffffc00036bfd88 ffff80001f5075a0 0000000000000000 [ 47.186717][ T4254] raw: 0000000000000004 ffff0000d3b2daa8 00000000ffffffff 0000000000000000 [ 47.188951][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 47.190203][ T4254] Modules linked in: [ 47.190830][ T4254] CPU: 1 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 47.192439][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 47.194225][ T4254] Call trace: [ 47.194784][ T4254] dump_backtrace+0x0/0x458 [ 47.195485][ T4254] show_stack+0x2c/0x3c [ 47.196133][ T4254] __dump_stack+0x30/0x40 [ 47.196752][ T4254] dump_stack_lvl+0xf4/0x15c [ 47.197459][ T4254] dump_stack+0x1c/0x5c [ 47.198148][ T4254] bad_page+0x188/0x1a8 [ 47.198822][ T4254] check_free_page_bad+0xf4/0x16c [ 47.199712][ T4254] free_unref_page_prepare+0x748/0xa94 [ 47.200616][ T4254] free_unref_page_list+0xdc/0x740 [ 47.201546][ T4254] release_pages+0x13a0/0x16c0 [ 47.202361][ T4254] __pagevec_release+0x84/0xf8 [ 47.203164][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 47.204185][ T4254] truncate_inode_pages+0x2c/0x3c [ 47.205048][ T4254] dbUnmount+0xf4/0x168 [ 47.205756][ T4254] jfs_umount+0x1c4/0x324 [ 47.206519][ T4254] jfs_put_super+0x90/0x18c [ 47.207365][ T4254] generic_shutdown_super+0x138/0x2f8 [ 47.208254][ T4254] kill_block_super+0x78/0xe0 [ 47.209061][ T4254] deactivate_locked_super+0xc0/0x13c [ 47.210019][ T4254] deactivate_super+0xf0/0x110 [ 47.210817][ T4254] cleanup_mnt+0x3bc/0x470 [ 47.211581][ T4254] __cleanup_mnt+0x20/0x30 [ 47.212334][ T4254] task_work_run+0x13c/0x1e8 [ 47.213072][ T4254] do_notify_resume+0x2488/0x30a8 [ 47.214006][ T4254] el0_svc+0xf0/0x1d0 [ 47.214668][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 47.215554][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 47.363707][ T4525] set_capacity_and_notify: 13 callbacks suppressed [ 47.363716][ T4525] loop0: detected capacity change from 0 to 32768 [ 47.413053][ T4525] ERROR: (device loop0): dbDiscardAG: -EIO [ 47.413053][ T4525] [ 47.414583][ T4525] handle_bad_sector: 13 callbacks suppressed [ 47.414590][ T4525] attempt to access beyond end of device [ 47.414590][ T4525] loop0: rw=2051, want=18014398509498368, limit=32768 [ 47.417413][ T4525] JFS: sb_issue_discard(000000005a285cc5, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 47.419491][ T4525] blkno = 8000000000400, nblocks = 400 [ 47.420420][ T4525] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 47.420420][ T4525] [ 47.424668][ T4254] BUG: Bad page state in process syz-executor.0 pfn:100c89 [ 47.425829][ T4254] page:00000000dd35e5f4 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x100c89 [ 47.427498][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 47.429595][ T4254] raw: 05ffc00000002006 fffffc00032b9248 ffff80001f5075a0 0000000000000000 [ 47.431044][ T4254] raw: 0000000000000004 ffff0000d30ccaa8 00000000ffffffff 0000000000000000 [ 47.432500][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 47.433881][ T4254] Modules linked in: [ 47.434501][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 47.435853][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 47.437466][ T4254] Call trace: [ 47.437986][ T4254] dump_backtrace+0x0/0x458 [ 47.438734][ T4254] show_stack+0x2c/0x3c [ 47.439431][ T4254] __dump_stack+0x30/0x40 [ 47.440170][ T4254] dump_stack_lvl+0xf4/0x15c [ 47.440975][ T4254] dump_stack+0x1c/0x5c [ 47.441724][ T4254] bad_page+0x188/0x1a8 [ 47.442407][ T4254] check_free_page_bad+0xf4/0x16c [ 47.443357][ T4254] free_unref_page_prepare+0x748/0xa94 [ 47.444237][ T4254] free_unref_page_list+0xdc/0x740 [ 47.445048][ T4254] release_pages+0x13a0/0x16c0 [ 47.445836][ T4254] __pagevec_release+0x84/0xf8 [ 47.446642][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 47.447620][ T4254] truncate_inode_pages+0x2c/0x3c [ 47.448506][ T4254] dbUnmount+0xf4/0x168 [ 47.449198][ T4254] jfs_umount+0x1c4/0x324 [ 47.449993][ T4254] jfs_put_super+0x90/0x18c [ 47.450940][ T4254] generic_shutdown_super+0x138/0x2f8 [ 47.452018][ T4254] kill_block_super+0x78/0xe0 [ 47.452927][ T4254] deactivate_locked_super+0xc0/0x13c [ 47.453913][ T4254] deactivate_super+0xf0/0x110 [ 47.454809][ T4254] cleanup_mnt+0x3bc/0x470 [ 47.455599][ T4254] __cleanup_mnt+0x20/0x30 [ 47.456333][ T4254] task_work_run+0x13c/0x1e8 [ 47.457281][ T4254] do_notify_resume+0x2488/0x30a8 [ 47.458305][ T4254] el0_svc+0xf0/0x1d0 [ 47.459116][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 47.460049][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 47.582677][ T4527] loop0: detected capacity change from 0 to 32768 [ 47.623754][ T4527] ERROR: (device loop0): dbDiscardAG: -EIO [ 47.623754][ T4527] [ 47.625305][ T4527] attempt to access beyond end of device [ 47.625305][ T4527] loop0: rw=2051, want=18014398509498368, limit=32768 [ 47.627409][ T4527] JFS: sb_issue_discard(00000000c27c0680, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 47.629491][ T4527] blkno = 8000000000400, nblocks = 400 [ 47.630289][ T4527] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 47.630289][ T4527] [ 47.635605][ T4254] BUG: Bad page state in process syz-executor.0 pfn:101717 [ 47.636940][ T4254] page:00000000713c0985 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x101717 [ 47.639081][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 47.640757][ T4254] raw: 05ffc00000002006 fffffc00032a76c8 ffff80001f5075a0 0000000000000000 [ 47.642225][ T4254] raw: 0000000000000004 ffff0000d3ab55d0 00000000ffffffff 0000000000000000 [ 47.643778][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 47.644951][ T4254] Modules linked in: [ 47.645580][ T4254] CPU: 1 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 47.647129][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 47.648855][ T4254] Call trace: [ 47.649437][ T4254] dump_backtrace+0x0/0x458 [ 47.650252][ T4254] show_stack+0x2c/0x3c [ 47.651000][ T4254] __dump_stack+0x30/0x40 [ 47.651744][ T4254] dump_stack_lvl+0xf4/0x15c [ 47.652474][ T4254] dump_stack+0x1c/0x5c [ 47.653156][ T4254] bad_page+0x188/0x1a8 [ 47.653934][ T4254] check_free_page_bad+0xf4/0x16c [ 47.654784][ T4254] free_unref_page_prepare+0x748/0xa94 [ 47.655740][ T4254] free_unref_page_list+0xdc/0x740 [ 47.656695][ T4254] release_pages+0x13a0/0x16c0 [ 47.657560][ T4254] __pagevec_release+0x84/0xf8 [ 47.658394][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 47.659442][ T4254] truncate_inode_pages+0x2c/0x3c [ 47.660339][ T4254] dbUnmount+0xf4/0x168 [ 47.661104][ T4254] jfs_umount+0x1c4/0x324 [ 47.661890][ T4254] jfs_put_super+0x90/0x18c [ 47.662642][ T4254] generic_shutdown_super+0x138/0x2f8 [ 47.663527][ T4254] kill_block_super+0x78/0xe0 [ 47.664337][ T4254] deactivate_locked_super+0xc0/0x13c [ 47.665262][ T4254] deactivate_super+0xf0/0x110 [ 47.666035][ T4254] cleanup_mnt+0x3bc/0x470 [ 47.666754][ T4254] __cleanup_mnt+0x20/0x30 [ 47.667514][ T4254] task_work_run+0x13c/0x1e8 [ 47.668271][ T4254] do_notify_resume+0x2488/0x30a8 [ 47.669116][ T4254] el0_svc+0xf0/0x1d0 [ 47.669760][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 47.670709][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 47.803127][ T4529] loop0: detected capacity change from 0 to 32768 [ 47.849992][ T4529] ERROR: (device loop0): dbDiscardAG: -EIO [ 47.849992][ T4529] [ 47.851484][ T4529] attempt to access beyond end of device [ 47.851484][ T4529] loop0: rw=2051, want=18014398509498368, limit=32768 [ 47.853654][ T4529] JFS: sb_issue_discard(000000008bec5d24, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 47.855344][ T4529] blkno = 8000000000400, nblocks = 400 [ 47.856339][ T4529] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 47.856339][ T4529] [ 47.862231][ T4254] BUG: Bad page state in process syz-executor.0 pfn:113c3b [ 47.863485][ T4254] page:00000000a222ec60 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x113c3b [ 47.865054][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 47.866575][ T4254] raw: 05ffc00000002006 fffffc00034f7dc8 ffff80001f5075a0 0000000000000000 [ 47.868367][ T4254] raw: 0000000000000004 ffff0000daee75d0 00000000ffffffff 0000000000000000 [ 47.869679][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 47.870896][ T4254] Modules linked in: [ 47.871535][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 47.873196][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 47.875004][ T4254] Call trace: [ 47.875579][ T4254] dump_backtrace+0x0/0x458 [ 47.876359][ T4254] show_stack+0x2c/0x3c [ 47.876976][ T4254] __dump_stack+0x30/0x40 [ 47.877632][ T4254] dump_stack_lvl+0xf4/0x15c [ 47.878392][ T4254] dump_stack+0x1c/0x5c [ 47.879151][ T4254] bad_page+0x188/0x1a8 [ 47.879892][ T4254] check_free_page_bad+0xf4/0x16c [ 47.880815][ T4254] free_unref_page_prepare+0x748/0xa94 [ 47.881836][ T4254] free_unref_page_list+0xdc/0x740 [ 47.882751][ T4254] release_pages+0x13a0/0x16c0 [ 47.883579][ T4254] __pagevec_release+0x84/0xf8 [ 47.884504][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 47.885531][ T4254] truncate_inode_pages+0x2c/0x3c [ 47.886417][ T4254] dbUnmount+0xf4/0x168 [ 47.887113][ T4254] jfs_umount+0x1c4/0x324 [ 47.887846][ T4254] jfs_put_super+0x90/0x18c [ 47.888621][ T4254] generic_shutdown_super+0x138/0x2f8 [ 47.889640][ T4254] kill_block_super+0x78/0xe0 [ 47.890467][ T4254] deactivate_locked_super+0xc0/0x13c [ 47.891428][ T4254] deactivate_super+0xf0/0x110 [ 47.892277][ T4254] cleanup_mnt+0x3bc/0x470 [ 47.893065][ T4254] __cleanup_mnt+0x20/0x30 [ 47.893800][ T4254] task_work_run+0x13c/0x1e8 [ 47.894656][ T4254] do_notify_resume+0x2488/0x30a8 [ 47.895528][ T4254] el0_svc+0xf0/0x1d0 [ 47.896227][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 47.897147][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 48.022685][ T4531] loop0: detected capacity change from 0 to 32768 [ 48.059700][ T4531] ERROR: (device loop0): dbDiscardAG: -EIO [ 48.059700][ T4531] [ 48.061080][ T4531] attempt to access beyond end of device [ 48.061080][ T4531] loop0: rw=2051, want=18014398509498368, limit=32768 [ 48.063062][ T4531] JFS: sb_issue_discard(00000000157949d9, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 48.064897][ T4531] blkno = 8000000000400, nblocks = 400 [ 48.065941][ T4531] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 48.065941][ T4531] [ 48.070201][ T4254] BUG: Bad page state in process syz-executor.0 pfn:107eba [ 48.071443][ T4254] page:00000000b5b0ddec refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x107eba [ 48.073133][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 48.074696][ T4254] raw: 05ffc00000002006 fffffc0003659248 ffff80001f5075a0 0000000000000000 [ 48.076179][ T4254] raw: 0000000000000004 ffff0000cae280f8 00000000ffffffff 0000000000000000 [ 48.077498][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 48.078789][ T4254] Modules linked in: [ 48.079420][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 48.080813][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 48.082433][ T4254] Call trace: [ 48.082915][ T4254] dump_backtrace+0x0/0x458 [ 48.083560][ T4254] show_stack+0x2c/0x3c [ 48.084295][ T4254] __dump_stack+0x30/0x40 [ 48.084967][ T4254] dump_stack_lvl+0xf4/0x15c [ 48.085698][ T4254] dump_stack+0x1c/0x5c [ 48.086377][ T4254] bad_page+0x188/0x1a8 [ 48.087015][ T4254] check_free_page_bad+0xf4/0x16c [ 48.087817][ T4254] free_unref_page_prepare+0x748/0xa94 [ 48.088749][ T4254] free_unref_page_list+0xdc/0x740 [ 48.089582][ T4254] release_pages+0x13a0/0x16c0 [ 48.090397][ T4254] __pagevec_release+0x84/0xf8 [ 48.091369][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 48.092406][ T4254] truncate_inode_pages+0x2c/0x3c [ 48.093245][ T4254] dbUnmount+0xf4/0x168 [ 48.093959][ T4254] jfs_umount+0x1c4/0x324 [ 48.094666][ T4254] jfs_put_super+0x90/0x18c [ 48.095457][ T4254] generic_shutdown_super+0x138/0x2f8 [ 48.096384][ T4254] kill_block_super+0x78/0xe0 [ 48.097240][ T4254] deactivate_locked_super+0xc0/0x13c [ 48.098115][ T4254] deactivate_super+0xf0/0x110 [ 48.098949][ T4254] cleanup_mnt+0x3bc/0x470 [ 48.099701][ T4254] __cleanup_mnt+0x20/0x30 [ 48.100449][ T4254] task_work_run+0x13c/0x1e8 [ 48.101204][ T4254] do_notify_resume+0x2488/0x30a8 [ 48.102039][ T4254] el0_svc+0xf0/0x1d0 [ 48.102725][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 48.103574][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 48.223366][ T4533] loop0: detected capacity change from 0 to 32768 [ 48.259921][ T4533] ERROR: (device loop0): dbDiscardAG: -EIO [ 48.259921][ T4533] [ 48.261398][ T4533] attempt to access beyond end of device [ 48.261398][ T4533] loop0: rw=2051, want=18014398509498368, limit=32768 [ 48.263494][ T4533] JFS: sb_issue_discard(000000002217c309, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 48.265356][ T4533] blkno = 8000000000400, nblocks = 400 [ 48.266423][ T4533] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 48.266423][ T4533] [ 48.271932][ T4254] BUG: Bad page state in process syz-executor.0 pfn:10a739 [ 48.273192][ T4254] page:0000000005bb740a refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10a739 [ 48.274950][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 48.276532][ T4254] raw: 05ffc00000002006 fffffc0003701848 ffff80001f5075a0 0000000000000000 [ 48.278073][ T4254] raw: 0000000000000004 ffff0000cae28ba0 00000000ffffffff 0000000000000000 [ 48.279579][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 48.280702][ T4254] Modules linked in: [ 48.281362][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 48.282797][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 48.284374][ T4254] Call trace: [ 48.284864][ T4254] dump_backtrace+0x0/0x458 [ 48.285718][ T4254] show_stack+0x2c/0x3c [ 48.286425][ T4254] __dump_stack+0x30/0x40 [ 48.287136][ T4254] dump_stack_lvl+0xf4/0x15c [ 48.287786][ T4254] dump_stack+0x1c/0x5c [ 48.288496][ T4254] bad_page+0x188/0x1a8 [ 48.289254][ T4254] check_free_page_bad+0xf4/0x16c [ 48.290162][ T4254] free_unref_page_prepare+0x748/0xa94 [ 48.291212][ T4254] free_unref_page_list+0xdc/0x740 [ 48.292140][ T4254] release_pages+0x13a0/0x16c0 [ 48.293034][ T4254] __pagevec_release+0x84/0xf8 [ 48.293914][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 48.294877][ T4254] truncate_inode_pages+0x2c/0x3c [ 48.295708][ T4254] dbUnmount+0xf4/0x168 [ 48.296426][ T4254] jfs_umount+0x1c4/0x324 [ 48.297200][ T4254] jfs_put_super+0x90/0x18c [ 48.298001][ T4254] generic_shutdown_super+0x138/0x2f8 [ 48.298977][ T4254] kill_block_super+0x78/0xe0 [ 48.299768][ T4254] deactivate_locked_super+0xc0/0x13c [ 48.300682][ T4254] deactivate_super+0xf0/0x110 [ 48.301498][ T4254] cleanup_mnt+0x3bc/0x470 [ 48.302230][ T4254] __cleanup_mnt+0x20/0x30 [ 48.303008][ T4254] task_work_run+0x13c/0x1e8 [ 48.303800][ T4254] do_notify_resume+0x2488/0x30a8 [ 48.304642][ T4254] el0_svc+0xf0/0x1d0 [ 48.305364][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 48.306289][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 48.432428][ T4535] loop0: detected capacity change from 0 to 32768 [ 48.483618][ T4535] ERROR: (device loop0): dbDiscardAG: -EIO [ 48.483618][ T4535] [ 48.485173][ T4535] attempt to access beyond end of device [ 48.485173][ T4535] loop0: rw=2051, want=18014398509498368, limit=32768 [ 48.487491][ T4535] JFS: sb_issue_discard(0000000052ee994e, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 48.489413][ T4535] blkno = 8000000000400, nblocks = 400 [ 48.490447][ T4535] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 48.490447][ T4535] [ 48.495886][ T4254] BUG: Bad page state in process syz-executor.0 pfn:108076 [ 48.497059][ T4254] page:00000000011c3ebd refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x108076 [ 48.499241][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 48.500796][ T4254] raw: 05ffc00000002006 fffffc0003263408 ffff80001f5075a0 0000000000000000 [ 48.502144][ T4254] raw: 0000000000000004 ffff0000d8df50f8 00000000ffffffff 0000000000000000 [ 48.503507][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 48.504708][ T4254] Modules linked in: [ 48.505413][ T4254] CPU: 1 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 48.507149][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 48.509128][ T4254] Call trace: [ 48.509762][ T4254] dump_backtrace+0x0/0x458 [ 48.510538][ T4254] show_stack+0x2c/0x3c [ 48.511277][ T4254] __dump_stack+0x30/0x40 [ 48.511967][ T4254] dump_stack_lvl+0xf4/0x15c [ 48.512737][ T4254] dump_stack+0x1c/0x5c [ 48.513430][ T4254] bad_page+0x188/0x1a8 [ 48.514114][ T4254] check_free_page_bad+0xf4/0x16c [ 48.514958][ T4254] free_unref_page_prepare+0x748/0xa94 [ 48.515900][ T4254] free_unref_page_list+0xdc/0x740 [ 48.516803][ T4254] release_pages+0x13a0/0x16c0 [ 48.517607][ T4254] __pagevec_release+0x84/0xf8 [ 48.518412][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 48.519367][ T4254] truncate_inode_pages+0x2c/0x3c [ 48.520216][ T4254] dbUnmount+0xf4/0x168 [ 48.520914][ T4254] jfs_umount+0x1c4/0x324 [ 48.521683][ T4254] jfs_put_super+0x90/0x18c [ 48.522445][ T4254] generic_shutdown_super+0x138/0x2f8 [ 48.523360][ T4254] kill_block_super+0x78/0xe0 [ 48.524159][ T4254] deactivate_locked_super+0xc0/0x13c [ 48.525118][ T4254] deactivate_super+0xf0/0x110 [ 48.525993][ T4254] cleanup_mnt+0x3bc/0x470 [ 48.526779][ T4254] __cleanup_mnt+0x20/0x30 [ 48.527535][ T4254] task_work_run+0x13c/0x1e8 [ 48.528383][ T4254] do_notify_resume+0x2488/0x30a8 [ 48.529341][ T4254] el0_svc+0xf0/0x1d0 [ 48.530058][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 48.530947][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 48.633397][ T4537] loop0: detected capacity change from 0 to 32768 [ 48.673462][ T4537] ERROR: (device loop0): dbDiscardAG: -EIO [ 48.673462][ T4537] [ 48.675096][ T4537] attempt to access beyond end of device [ 48.675096][ T4537] loop0: rw=2051, want=18014398509498368, limit=32768 [ 48.677198][ T4537] JFS: sb_issue_discard(00000000e4bd01c7, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 48.679046][ T4537] blkno = 8000000000400, nblocks = 400 [ 48.679934][ T4537] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 48.679934][ T4537] [ 48.684202][ T4254] BUG: Bad page state in process syz-executor.0 pfn:11b9dd [ 48.685571][ T4254] page:0000000026ffce10 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11b9dd [ 48.687261][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 48.689361][ T4254] raw: 05ffc00000002006 fffffc000339c888 ffff80001f5075a0 0000000000000000 [ 48.690869][ T4254] raw: 0000000000000004 ffff0000d00ba6c8 00000000ffffffff 0000000000000000 [ 48.692217][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 48.693281][ T4254] Modules linked in: [ 48.693942][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 48.695377][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 48.697247][ T4254] Call trace: [ 48.697759][ T4254] dump_backtrace+0x0/0x458 [ 48.698625][ T4254] show_stack+0x2c/0x3c [ 48.699436][ T4254] __dump_stack+0x30/0x40 [ 48.700250][ T4254] dump_stack_lvl+0xf4/0x15c [ 48.701073][ T4254] dump_stack+0x1c/0x5c [ 48.701788][ T4254] bad_page+0x188/0x1a8 [ 48.702526][ T4254] check_free_page_bad+0xf4/0x16c [ 48.703414][ T4254] free_unref_page_prepare+0x748/0xa94 [ 48.704406][ T4254] free_unref_page_list+0xdc/0x740 [ 48.705338][ T4254] release_pages+0x13a0/0x16c0 [ 48.706216][ T4254] __pagevec_release+0x84/0xf8 [ 48.707061][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 48.708030][ T4254] truncate_inode_pages+0x2c/0x3c [ 48.708934][ T4254] dbUnmount+0xf4/0x168 [ 48.709721][ T4254] jfs_umount+0x1c4/0x324 [ 48.710563][ T4254] jfs_put_super+0x90/0x18c [ 48.711473][ T4254] generic_shutdown_super+0x138/0x2f8 [ 48.712529][ T4254] kill_block_super+0x78/0xe0 [ 48.713450][ T4254] deactivate_locked_super+0xc0/0x13c [ 48.714418][ T4254] deactivate_super+0xf0/0x110 [ 48.715371][ T4254] cleanup_mnt+0x3bc/0x470 [ 48.716234][ T4254] __cleanup_mnt+0x20/0x30 [ 48.717153][ T4254] task_work_run+0x13c/0x1e8 [ 48.718114][ T4254] do_notify_resume+0x2488/0x30a8 [ 48.719104][ T4254] el0_svc+0xf0/0x1d0 [ 48.719914][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 48.720785][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 48.832461][ T4539] loop0: detected capacity change from 0 to 32768 [ 48.878013][ T4539] ERROR: (device loop0): dbDiscardAG: -EIO [ 48.878013][ T4539] [ 48.879754][ T4539] attempt to access beyond end of device [ 48.879754][ T4539] loop0: rw=2051, want=18014398509498368, limit=32768 [ 48.881886][ T4539] JFS: sb_issue_discard(00000000e096f874, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 48.883551][ T4539] blkno = 8000000000400, nblocks = 400 [ 48.884507][ T4539] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 48.884507][ T4539] [ 48.890099][ T4254] BUG: Bad page state in process syz-executor.0 pfn:10b58e [ 48.891488][ T4254] page:00000000a93849de refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10b58e [ 48.893310][ T4254] flags: 0x5ffc00000002004(uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 48.894836][ T4254] raw: 05ffc00000002004 fffffc00032a2408 ffff80001f5075a0 0000000000000000 [ 48.896333][ T4254] raw: 0000000000000004 ffff0000d8df53e0 00000000ffffffff 0000000000000000 [ 48.897857][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 48.899353][ T4254] Modules linked in: [ 48.899927][ T4254] CPU: 1 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 48.901346][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 48.903224][ T4254] Call trace: [ 48.903817][ T4254] dump_backtrace+0x0/0x458 [ 48.904661][ T4254] show_stack+0x2c/0x3c [ 48.905413][ T4254] __dump_stack+0x30/0x40 [ 48.906255][ T4254] dump_stack_lvl+0xf4/0x15c [ 48.907109][ T4254] dump_stack+0x1c/0x5c [ 48.907886][ T4254] bad_page+0x188/0x1a8 [ 48.908739][ T4254] check_free_page_bad+0xf4/0x16c [ 48.909721][ T4254] free_unref_page_prepare+0x748/0xa94 [ 48.910763][ T4254] free_unref_page_list+0xdc/0x740 [ 48.911706][ T4254] release_pages+0x13a0/0x16c0 [ 48.912463][ T4254] __pagevec_release+0x84/0xf8 [ 48.913272][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 48.914254][ T4254] truncate_inode_pages+0x2c/0x3c [ 48.915175][ T4254] dbUnmount+0xf4/0x168 [ 48.915892][ T4254] jfs_umount+0x1c4/0x324 [ 48.916634][ T4254] jfs_put_super+0x90/0x18c [ 48.917467][ T4254] generic_shutdown_super+0x138/0x2f8 [ 48.918425][ T4254] kill_block_super+0x78/0xe0 [ 48.919213][ T4254] deactivate_locked_super+0xc0/0x13c [ 48.920109][ T4254] deactivate_super+0xf0/0x110 [ 48.921065][ T4254] cleanup_mnt+0x3bc/0x470 [ 48.921793][ T4254] __cleanup_mnt+0x20/0x30 [ 48.922550][ T4254] task_work_run+0x13c/0x1e8 [ 48.923401][ T4254] do_notify_resume+0x2488/0x30a8 [ 48.924324][ T4254] el0_svc+0xf0/0x1d0 [ 48.925057][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 48.925927][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 49.043202][ T4541] loop0: detected capacity change from 0 to 32768 [ 49.079904][ T4541] ERROR: (device loop0): dbDiscardAG: -EIO [ 49.079904][ T4541] [ 49.081415][ T4541] attempt to access beyond end of device [ 49.081415][ T4541] loop0: rw=2051, want=18014398509498368, limit=32768 [ 49.083638][ T4541] JFS: sb_issue_discard(0000000019582743, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 49.085619][ T4541] blkno = 8000000000400, nblocks = 400 [ 49.086545][ T4541] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 49.086545][ T4541] [ 49.092268][ T4254] BUG: Bad page state in process syz-executor.0 pfn:10ff3a [ 49.093533][ T4254] page:00000000a98658d9 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10ff3a [ 49.095196][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 49.096720][ T4254] raw: 05ffc00000002006 fffffc0003089448 ffff80001f5075a0 0000000000000000 [ 49.098627][ T4254] raw: 0000000000000004 ffff0000c9d05000 00000000ffffffff 0000000000000000 [ 49.100117][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 49.101314][ T4254] Modules linked in: [ 49.101900][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 49.103415][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 49.105144][ T4254] Call trace: [ 49.105732][ T4254] dump_backtrace+0x0/0x458 [ 49.106462][ T4254] show_stack+0x2c/0x3c [ 49.107174][ T4254] __dump_stack+0x30/0x40 [ 49.107863][ T4254] dump_stack_lvl+0xf4/0x15c [ 49.108705][ T4254] dump_stack+0x1c/0x5c [ 49.109415][ T4254] bad_page+0x188/0x1a8 [ 49.110131][ T4254] check_free_page_bad+0xf4/0x16c [ 49.111041][ T4254] free_unref_page_prepare+0x748/0xa94 [ 49.112012][ T4254] free_unref_page_list+0xdc/0x740 [ 49.112898][ T4254] release_pages+0x13a0/0x16c0 [ 49.113727][ T4254] __pagevec_release+0x84/0xf8 [ 49.114513][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 49.115538][ T4254] truncate_inode_pages+0x2c/0x3c [ 49.116450][ T4254] dbUnmount+0xf4/0x168 [ 49.117246][ T4254] jfs_umount+0x1c4/0x324 [ 49.118012][ T4254] jfs_put_super+0x90/0x18c [ 49.118783][ T4254] generic_shutdown_super+0x138/0x2f8 [ 49.119708][ T4254] kill_block_super+0x78/0xe0 [ 49.120493][ T4254] deactivate_locked_super+0xc0/0x13c [ 49.121457][ T4254] deactivate_super+0xf0/0x110 [ 49.122452][ T4254] cleanup_mnt+0x3bc/0x470 [ 49.123378][ T4254] __cleanup_mnt+0x20/0x30 [ 49.124203][ T4254] task_work_run+0x13c/0x1e8 [ 49.125075][ T4254] do_notify_resume+0x2488/0x30a8 [ 49.126016][ T4254] el0_svc+0xf0/0x1d0 [ 49.126752][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 49.127825][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 49.128894][ T7] Bluetooth: hci0: command 0x0419 tx timeout [ 49.261770][ T4543] loop0: detected capacity change from 0 to 32768 [ 49.306107][ T4543] ERROR: (device loop0): dbDiscardAG: -EIO [ 49.306107][ T4543] [ 49.307538][ T4543] attempt to access beyond end of device [ 49.307538][ T4543] loop0: rw=2051, want=18014398509498368, limit=32768 [ 49.309823][ T4543] JFS: sb_issue_discard(00000000c78319da, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 49.311781][ T4543] blkno = 8000000000400, nblocks = 400 [ 49.312747][ T4543] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 49.312747][ T4543] [ 49.317720][ T4254] BUG: Bad page state in process syz-executor.0 pfn:113168 [ 49.319527][ T4254] page:00000000a8093b58 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x113168 [ 49.321146][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 49.322703][ T4254] raw: 05ffc00000002006 fffffc0003698088 ffff80001f5075a0 0000000000000000 [ 49.324156][ T4254] raw: 0000000000000004 ffff0000c9d05aa8 00000000ffffffff 0000000000000000 [ 49.325569][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 49.326746][ T4254] Modules linked in: [ 49.327375][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 49.328896][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 49.330781][ T4254] Call trace: [ 49.331364][ T4254] dump_backtrace+0x0/0x458 [ 49.332152][ T4254] show_stack+0x2c/0x3c [ 49.332883][ T4254] __dump_stack+0x30/0x40 [ 49.333649][ T4254] dump_stack_lvl+0xf4/0x15c [ 49.334416][ T4254] dump_stack+0x1c/0x5c [ 49.335113][ T4254] bad_page+0x188/0x1a8 [ 49.335832][ T4254] check_free_page_bad+0xf4/0x16c [ 49.336718][ T4254] free_unref_page_prepare+0x748/0xa94 [ 49.337599][ T4254] free_unref_page_list+0xdc/0x740 [ 49.338439][ T4254] release_pages+0x13a0/0x16c0 [ 49.339281][ T4254] __pagevec_release+0x84/0xf8 [ 49.340048][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 49.341059][ T4254] truncate_inode_pages+0x2c/0x3c [ 49.341935][ T4254] dbUnmount+0xf4/0x168 [ 49.342666][ T4254] jfs_umount+0x1c4/0x324 [ 49.343478][ T4254] jfs_put_super+0x90/0x18c [ 49.344309][ T4254] generic_shutdown_super+0x138/0x2f8 [ 49.345251][ T4254] kill_block_super+0x78/0xe0 [ 49.346027][ T4254] deactivate_locked_super+0xc0/0x13c [ 49.346968][ T4254] deactivate_super+0xf0/0x110 [ 49.347791][ T4254] cleanup_mnt+0x3bc/0x470 [ 49.348493][ T4254] __cleanup_mnt+0x20/0x30 [ 49.349282][ T4254] task_work_run+0x13c/0x1e8 [ 49.350005][ T4254] do_notify_resume+0x2488/0x30a8 [ 49.350913][ T4254] el0_svc+0xf0/0x1d0 [ 49.351693][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 49.352605][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 49.571324][ T4545] ERROR: (device loop0): dbDiscardAG: -EIO [ 49.571324][ T4545] [ 49.572992][ T4545] JFS: sb_issue_discard(00000000a5c4c9b0, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 49.574934][ T4545] blkno = 8000000000400, nblocks = 400 [ 49.575963][ T4545] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 49.575963][ T4545] [ 49.581173][ T4254] BUG: Bad page state in process syz-executor.0 pfn:10ae8d [ 49.582508][ T4254] page:00000000cbce90f0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10ae8d [ 49.584193][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 49.585811][ T4254] raw: 05ffc00000002006 fffffc00032175c8 ffff80001f5075a0 0000000000000000 [ 49.587443][ T4254] raw: 0000000000000004 ffff0000d8df5e88 00000000ffffffff 0000000000000000 [ 49.589547][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 49.590776][ T4254] Modules linked in: [ 49.591473][ T4254] CPU: 1 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 49.592999][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 49.594717][ T4254] Call trace: [ 49.595329][ T4254] dump_backtrace+0x0/0x458 [ 49.596241][ T4254] show_stack+0x2c/0x3c [ 49.596946][ T4254] __dump_stack+0x30/0x40 [ 49.597613][ T4254] dump_stack_lvl+0xf4/0x15c [ 49.598437][ T4254] dump_stack+0x1c/0x5c [ 49.599209][ T4254] bad_page+0x188/0x1a8 [ 49.600014][ T4254] check_free_page_bad+0xf4/0x16c [ 49.600929][ T4254] free_unref_page_prepare+0x748/0xa94 [ 49.601849][ T4254] free_unref_page_list+0xdc/0x740 [ 49.602791][ T4254] release_pages+0x13a0/0x16c0 [ 49.603631][ T4254] __pagevec_release+0x84/0xf8 [ 49.604503][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 49.605498][ T4254] truncate_inode_pages+0x2c/0x3c [ 49.606373][ T4254] dbUnmount+0xf4/0x168 [ 49.607144][ T4254] jfs_umount+0x1c4/0x324 [ 49.607849][ T4254] jfs_put_super+0x90/0x18c [ 49.608620][ T4254] generic_shutdown_super+0x138/0x2f8 [ 49.609509][ T4254] kill_block_super+0x78/0xe0 [ 49.610282][ T4254] deactivate_locked_super+0xc0/0x13c [ 49.611226][ T4254] deactivate_super+0xf0/0x110 [ 49.612028][ T4254] cleanup_mnt+0x3bc/0x470 [ 49.612797][ T4254] __cleanup_mnt+0x20/0x30 [ 49.613557][ T4254] task_work_run+0x13c/0x1e8 [ 49.614354][ T4254] do_notify_resume+0x2488/0x30a8 [ 49.615237][ T4254] el0_svc+0xf0/0x1d0 [ 49.615965][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 49.616873][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 49.810888][ T4547] ERROR: (device loop0): dbDiscardAG: -EIO [ 49.810888][ T4547] [ 49.812404][ T4547] JFS: sb_issue_discard(00000000a6a824a1, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 49.814197][ T4547] blkno = 8000000000400, nblocks = 400 [ 49.815087][ T4547] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 49.815087][ T4547] [ 49.820251][ T4254] BUG: Bad page state in process syz-executor.0 pfn:1096d6 [ 49.821459][ T4254] page:000000002a1ed006 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x1096d6 [ 49.823152][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 49.824719][ T4254] raw: 05ffc00000002006 fffffc0003418f88 ffff80001f5075a0 0000000000000000 [ 49.826271][ T4254] raw: 0000000000000004 ffff0000cbd1dd90 00000000ffffffff 0000000000000000 [ 49.827775][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 49.829949][ T4254] Modules linked in: [ 49.830620][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 49.832119][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 49.833690][ T4254] Call trace: [ 49.834156][ T4254] dump_backtrace+0x0/0x458 [ 49.834790][ T4254] show_stack+0x2c/0x3c [ 49.835409][ T4254] __dump_stack+0x30/0x40 [ 49.836141][ T4254] dump_stack_lvl+0xf4/0x15c [ 49.836954][ T4254] dump_stack+0x1c/0x5c [ 49.837651][ T4254] bad_page+0x188/0x1a8 [ 49.838397][ T4254] check_free_page_bad+0xf4/0x16c [ 49.839286][ T4254] free_unref_page_prepare+0x748/0xa94 [ 49.840233][ T4254] free_unref_page_list+0xdc/0x740 [ 49.841025][ T4254] release_pages+0x13a0/0x16c0 [ 49.842001][ T4254] __pagevec_release+0x84/0xf8 [ 49.842913][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 49.843792][ T4254] truncate_inode_pages+0x2c/0x3c [ 49.844678][ T4254] dbUnmount+0xf4/0x168 [ 49.845474][ T4254] jfs_umount+0x1c4/0x324 [ 49.846253][ T4254] jfs_put_super+0x90/0x18c [ 49.847017][ T4254] generic_shutdown_super+0x138/0x2f8 [ 49.847967][ T4254] kill_block_super+0x78/0xe0 [ 49.848688][ T4254] deactivate_locked_super+0xc0/0x13c [ 49.849537][ T4254] deactivate_super+0xf0/0x110 [ 49.850316][ T4254] cleanup_mnt+0x3bc/0x470 [ 49.851072][ T4254] __cleanup_mnt+0x20/0x30 [ 49.851812][ T4254] task_work_run+0x13c/0x1e8 [ 49.852587][ T4254] do_notify_resume+0x2488/0x30a8 [ 49.853427][ T4254] el0_svc+0xf0/0x1d0 [ 49.854047][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 49.854874][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 50.026374][ T4549] ERROR: (device loop0): dbDiscardAG: -EIO [ 50.026374][ T4549] [ 50.028011][ T4549] JFS: sb_issue_discard(00000000a42b12b1, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 50.029862][ T4549] blkno = 8000000000400, nblocks = 400 [ 50.030804][ T4549] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 50.030804][ T4549] [ 50.034914][ T4254] BUG: Bad page state in process syz-executor.0 pfn:113be2 [ 50.036050][ T4254] page:00000000ec7a8b5d refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x113be2 [ 50.037645][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 50.039984][ T4254] raw: 05ffc00000002006 fffffc00030363c8 ffff80001f5075a0 0000000000000000 [ 50.041492][ T4254] raw: 0000000000000004 ffff0000c0ca29b0 00000000ffffffff 0000000000000000 [ 50.043028][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 50.044412][ T4254] Modules linked in: [ 50.045238][ T4254] CPU: 1 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 50.046957][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 50.048751][ T4254] Call trace: [ 50.049333][ T4254] dump_backtrace+0x0/0x458 [ 50.050251][ T4254] show_stack+0x2c/0x3c [ 50.051001][ T4254] __dump_stack+0x30/0x40 [ 50.051756][ T4254] dump_stack_lvl+0xf4/0x15c [ 50.052587][ T4254] dump_stack+0x1c/0x5c [ 50.053259][ T4254] bad_page+0x188/0x1a8 [ 50.053963][ T4254] check_free_page_bad+0xf4/0x16c [ 50.054790][ T4254] free_unref_page_prepare+0x748/0xa94 [ 50.055754][ T4254] free_unref_page_list+0xdc/0x740 [ 50.056585][ T4254] release_pages+0x13a0/0x16c0 [ 50.057394][ T4254] __pagevec_release+0x84/0xf8 [ 50.058321][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 50.059360][ T4254] truncate_inode_pages+0x2c/0x3c [ 50.060251][ T4254] dbUnmount+0xf4/0x168 [ 50.060940][ T4254] jfs_umount+0x1c4/0x324 [ 50.061651][ T4254] jfs_put_super+0x90/0x18c [ 50.062442][ T4254] generic_shutdown_super+0x138/0x2f8 [ 50.063312][ T4254] kill_block_super+0x78/0xe0 [ 50.064164][ T4254] deactivate_locked_super+0xc0/0x13c [ 50.065067][ T4254] deactivate_super+0xf0/0x110 [ 50.066016][ T4254] cleanup_mnt+0x3bc/0x470 [ 50.066747][ T4254] __cleanup_mnt+0x20/0x30 [ 50.067490][ T4254] task_work_run+0x13c/0x1e8 [ 50.068264][ T4254] do_notify_resume+0x2488/0x30a8 [ 50.069093][ T4254] el0_svc+0xf0/0x1d0 [ 50.069855][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 50.070880][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 50.266086][ T4551] ERROR: (device loop0): dbDiscardAG: -EIO [ 50.266086][ T4551] [ 50.267491][ T4551] JFS: sb_issue_discard(0000000067503fa8, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 50.269455][ T4551] blkno = 8000000000400, nblocks = 400 [ 50.270372][ T4551] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 50.270372][ T4551] [ 50.275442][ T4254] BUG: Bad page state in process syz-executor.0 pfn:10b5a7 [ 50.276744][ T4254] page:00000000acb0ab44 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10b5a7 [ 50.278860][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 50.280384][ T4254] raw: 05ffc00000002006 fffffc00032bf448 ffff80001f5075a0 0000000000000000 [ 50.281856][ T4254] raw: 0000000000000004 ffff0000ca3266c8 00000000ffffffff 0000000000000000 [ 50.283294][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 50.284409][ T4254] Modules linked in: [ 50.285055][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 50.286543][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 50.288119][ T4254] Call trace: [ 50.288642][ T4254] dump_backtrace+0x0/0x458 [ 50.289419][ T4254] show_stack+0x2c/0x3c [ 50.290146][ T4254] __dump_stack+0x30/0x40 [ 50.290921][ T4254] dump_stack_lvl+0xf4/0x15c [ 50.291699][ T4254] dump_stack+0x1c/0x5c [ 50.292407][ T4254] bad_page+0x188/0x1a8 [ 50.293124][ T4254] check_free_page_bad+0xf4/0x16c [ 50.294006][ T4254] free_unref_page_prepare+0x748/0xa94 [ 50.294944][ T4254] free_unref_page_list+0xdc/0x740 [ 50.295771][ T4254] release_pages+0x13a0/0x16c0 [ 50.296561][ T4254] __pagevec_release+0x84/0xf8 [ 50.297403][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 50.298359][ T4254] truncate_inode_pages+0x2c/0x3c [ 50.299170][ T4254] dbUnmount+0xf4/0x168 [ 50.299889][ T4254] jfs_umount+0x1c4/0x324 [ 50.300620][ T4254] jfs_put_super+0x90/0x18c [ 50.301481][ T4254] generic_shutdown_super+0x138/0x2f8 [ 50.302396][ T4254] kill_block_super+0x78/0xe0 [ 50.303223][ T4254] deactivate_locked_super+0xc0/0x13c [ 50.304134][ T4254] deactivate_super+0xf0/0x110 [ 50.305003][ T4254] cleanup_mnt+0x3bc/0x470 [ 50.305750][ T4254] __cleanup_mnt+0x20/0x30 [ 50.306486][ T4254] task_work_run+0x13c/0x1e8 [ 50.307214][ T4254] do_notify_resume+0x2488/0x30a8 [ 50.308072][ T4254] el0_svc+0xf0/0x1d0 [ 50.308852][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 50.309747][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 50.506257][ T4553] ERROR: (device loop0): dbDiscardAG: -EIO [ 50.506257][ T4553] [ 50.507776][ T4553] JFS: sb_issue_discard(00000000f19f6e0f, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 50.509578][ T4553] blkno = 8000000000400, nblocks = 400 [ 50.510436][ T4553] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 50.510436][ T4553] [ 50.520830][ T4254] BUG: Bad page state in process syz-executor.0 pfn:113131 [ 50.522089][ T4254] page:000000008852c9e5 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x113131 [ 50.523839][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 50.525515][ T4254] raw: 05ffc00000002006 fffffc0003625448 ffff80001f5075a0 0000000000000000 [ 50.527059][ T4254] raw: 0000000000000004 ffff0000dc1291f0 00000000ffffffff 0000000000000000 [ 50.529539][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 50.530710][ T4254] Modules linked in: [ 50.531373][ T4254] CPU: 1 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 50.532803][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 50.534410][ T4254] Call trace: [ 50.534936][ T4254] dump_backtrace+0x0/0x458 [ 50.535797][ T4254] show_stack+0x2c/0x3c [ 50.536455][ T4254] __dump_stack+0x30/0x40 [ 50.537262][ T4254] dump_stack_lvl+0xf4/0x15c [ 50.538152][ T4254] dump_stack+0x1c/0x5c [ 50.539009][ T4254] bad_page+0x188/0x1a8 [ 50.539762][ T4254] check_free_page_bad+0xf4/0x16c [ 50.540802][ T4254] free_unref_page_prepare+0x748/0xa94 [ 50.541934][ T4254] free_unref_page_list+0xdc/0x740 [ 50.542986][ T4254] release_pages+0x13a0/0x16c0 [ 50.543922][ T4254] __pagevec_release+0x84/0xf8 [ 50.544733][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 50.545743][ T4254] truncate_inode_pages+0x2c/0x3c [ 50.546673][ T4254] dbUnmount+0xf4/0x168 [ 50.547438][ T4254] jfs_umount+0x1c4/0x324 [ 50.548240][ T4254] jfs_put_super+0x90/0x18c [ 50.549017][ T4254] generic_shutdown_super+0x138/0x2f8 [ 50.549956][ T4254] kill_block_super+0x78/0xe0 [ 50.550796][ T4254] deactivate_locked_super+0xc0/0x13c [ 50.551892][ T4254] deactivate_super+0xf0/0x110 [ 50.552886][ T4254] cleanup_mnt+0x3bc/0x470 [ 50.553792][ T4254] __cleanup_mnt+0x20/0x30 [ 50.554514][ T4254] task_work_run+0x13c/0x1e8 [ 50.555319][ T4254] do_notify_resume+0x2488/0x30a8 [ 50.556342][ T4254] el0_svc+0xf0/0x1d0 [ 50.557100][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 50.558007][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 50.743562][ T4555] ERROR: (device loop0): dbDiscardAG: -EIO [ 50.743562][ T4555] [ 50.745114][ T4555] JFS: sb_issue_discard(000000000c0fc53f, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 50.747107][ T4555] blkno = 8000000000400, nblocks = 400 [ 50.748209][ T4555] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 50.748209][ T4555] [ 50.755220][ T4254] BUG: Bad page state in process syz-executor.0 pfn:10d5c6 [ 50.756453][ T4254] page:00000000efa5b209 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10d5c6 [ 50.758555][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 50.760305][ T4254] raw: 05ffc00000002006 fffffc00032d7288 ffff80001f5075a0 0000000000000000 [ 50.761903][ T4254] raw: 0000000000000004 ffff0000dc129c98 00000000ffffffff 0000000000000000 [ 50.763400][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 50.764611][ T4254] Modules linked in: [ 50.765292][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 50.766731][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 50.768343][ T4254] Call trace: [ 50.768908][ T4254] dump_backtrace+0x0/0x458 [ 50.769729][ T4254] show_stack+0x2c/0x3c [ 50.770490][ T4254] __dump_stack+0x30/0x40 [ 50.771255][ T4254] dump_stack_lvl+0xf4/0x15c [ 50.772042][ T4254] dump_stack+0x1c/0x5c [ 50.772815][ T4254] bad_page+0x188/0x1a8 [ 50.773531][ T4254] check_free_page_bad+0xf4/0x16c [ 50.774412][ T4254] free_unref_page_prepare+0x748/0xa94 [ 50.775349][ T4254] free_unref_page_list+0xdc/0x740 [ 50.776259][ T4254] release_pages+0x13a0/0x16c0 [ 50.777127][ T4254] __pagevec_release+0x84/0xf8 [ 50.778006][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 50.779057][ T4254] truncate_inode_pages+0x2c/0x3c [ 50.779884][ T4254] dbUnmount+0xf4/0x168 [ 50.780587][ T4254] jfs_umount+0x1c4/0x324 [ 50.781343][ T4254] jfs_put_super+0x90/0x18c [ 50.782137][ T4254] generic_shutdown_super+0x138/0x2f8 [ 50.783030][ T4254] kill_block_super+0x78/0xe0 [ 50.783817][ T4254] deactivate_locked_super+0xc0/0x13c [ 50.784728][ T4254] deactivate_super+0xf0/0x110 [ 50.785617][ T4254] cleanup_mnt+0x3bc/0x470 [ 50.786360][ T4254] __cleanup_mnt+0x20/0x30 [ 50.787089][ T4254] task_work_run+0x13c/0x1e8 [ 50.787858][ T4254] do_notify_resume+0x2488/0x30a8 [ 50.788745][ T4254] el0_svc+0xf0/0x1d0 [ 50.789498][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 50.790404][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 50.943038][ T4557] ERROR: (device loop0): dbDiscardAG: -EIO [ 50.943038][ T4557] [ 50.944646][ T4557] JFS: sb_issue_discard(00000000474db784, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 50.946480][ T4557] blkno = 8000000000400, nblocks = 400 [ 50.947408][ T4557] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 50.947408][ T4557] 1970/01/01 00:00:50 executed programs: 40 [ 50.953606][ T4254] BUG: Bad page state in process syz-executor.0 pfn:10b520 [ 50.954766][ T4254] page:000000002f745b08 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10b520 [ 50.956279][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 50.958394][ T4254] raw: 05ffc00000002006 fffffc00031a7208 ffff80001f5075a0 0000000000000000 [ 50.959922][ T4254] raw: 0000000000000004 ffff0000c5c916c8 00000000ffffffff 0000000000000000 [ 50.961472][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 50.962636][ T4254] Modules linked in: [ 50.963281][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 50.964792][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 50.966434][ T4254] Call trace: [ 50.966956][ T4254] dump_backtrace+0x0/0x458 [ 50.967749][ T4254] show_stack+0x2c/0x3c [ 50.968505][ T4254] __dump_stack+0x30/0x40 [ 50.969299][ T4254] dump_stack_lvl+0xf4/0x15c [ 50.970137][ T4254] dump_stack+0x1c/0x5c [ 50.970895][ T4254] bad_page+0x188/0x1a8 [ 50.971609][ T4254] check_free_page_bad+0xf4/0x16c [ 50.972485][ T4254] free_unref_page_prepare+0x748/0xa94 [ 50.973453][ T4254] free_unref_page_list+0xdc/0x740 [ 50.974355][ T4254] release_pages+0x13a0/0x16c0 [ 50.975068][ T4254] __pagevec_release+0x84/0xf8 [ 50.975811][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 50.976800][ T4254] truncate_inode_pages+0x2c/0x3c [ 50.977714][ T4254] dbUnmount+0xf4/0x168 [ 50.978393][ T4254] jfs_umount+0x1c4/0x324 [ 50.979124][ T4254] jfs_put_super+0x90/0x18c [ 50.979929][ T4254] generic_shutdown_super+0x138/0x2f8 [ 50.980867][ T4254] kill_block_super+0x78/0xe0 [ 50.981801][ T4254] deactivate_locked_super+0xc0/0x13c [ 50.982835][ T4254] deactivate_super+0xf0/0x110 [ 50.983793][ T4254] cleanup_mnt+0x3bc/0x470 [ 50.984704][ T4254] __cleanup_mnt+0x20/0x30 [ 50.985607][ T4254] task_work_run+0x13c/0x1e8 [ 50.986470][ T4254] do_notify_resume+0x2488/0x30a8 [ 50.987342][ T4254] el0_svc+0xf0/0x1d0 [ 50.988082][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 50.988971][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 51.143435][ T4559] ERROR: (device loop0): dbDiscardAG: -EIO [ 51.143435][ T4559] [ 51.145088][ T4559] JFS: sb_issue_discard(00000000d5c26d2f, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 51.146890][ T4559] blkno = 8000000000400, nblocks = 400 [ 51.147792][ T4559] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 51.147792][ T4559] [ 51.153088][ T4254] BUG: Bad page state in process syz-executor.0 pfn:10973e [ 51.154381][ T4254] page:0000000069ba4f27 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10973e [ 51.155949][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 51.157657][ T4254] raw: 05ffc00000002006 fffffc0003032cc8 ffff80001f5075a0 0000000000000000 [ 51.159315][ T4254] raw: 0000000000000004 ffff0000db80fe88 00000000ffffffff 0000000000000000 [ 51.160784][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 51.161965][ T4254] Modules linked in: [ 51.162657][ T4254] CPU: 1 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 51.164168][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 51.165786][ T4254] Call trace: [ 51.166322][ T4254] dump_backtrace+0x0/0x458 [ 51.167110][ T4254] show_stack+0x2c/0x3c [ 51.167793][ T4254] __dump_stack+0x30/0x40 [ 51.168548][ T4254] dump_stack_lvl+0xf4/0x15c [ 51.169389][ T4254] dump_stack+0x1c/0x5c [ 51.170143][ T4254] bad_page+0x188/0x1a8 [ 51.170900][ T4254] check_free_page_bad+0xf4/0x16c [ 51.171786][ T4254] free_unref_page_prepare+0x748/0xa94 [ 51.172748][ T4254] free_unref_page_list+0xdc/0x740 [ 51.173710][ T4254] release_pages+0x13a0/0x16c0 [ 51.174562][ T4254] __pagevec_release+0x84/0xf8 [ 51.175356][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 51.176242][ T4254] truncate_inode_pages+0x2c/0x3c [ 51.177068][ T4254] dbUnmount+0xf4/0x168 [ 51.177894][ T4254] jfs_umount+0x1c4/0x324 [ 51.178678][ T4254] jfs_put_super+0x90/0x18c [ 51.179477][ T4254] generic_shutdown_super+0x138/0x2f8 [ 51.180408][ T4254] kill_block_super+0x78/0xe0 [ 51.181211][ T4254] deactivate_locked_super+0xc0/0x13c [ 51.182158][ T4254] deactivate_super+0xf0/0x110 [ 51.183006][ T4254] cleanup_mnt+0x3bc/0x470 [ 51.183758][ T4254] __cleanup_mnt+0x20/0x30 [ 51.184560][ T4254] task_work_run+0x13c/0x1e8 [ 51.185360][ T4254] do_notify_resume+0x2488/0x30a8 [ 51.186191][ T4254] el0_svc+0xf0/0x1d0 [ 51.187038][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 51.188021][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 51.342789][ T4561] ERROR: (device loop0): dbDiscardAG: -EIO [ 51.342789][ T4561] [ 51.344376][ T4561] JFS: sb_issue_discard(0000000074cc9a0d, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 51.346213][ T4561] blkno = 8000000000400, nblocks = 400 [ 51.347249][ T4561] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 51.347249][ T4561] [ 51.353114][ T4254] BUG: Bad page state in process syz-executor.0 pfn:10adc3 [ 51.354852][ T4254] page:000000005171e99b refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10adc3 [ 51.356857][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 51.358945][ T4254] raw: 05ffc00000002006 fffffc000362c7c8 ffff80001f5075a0 0000000000000000 [ 51.360409][ T4254] raw: 0000000000000004 ffff0000cad034d8 00000000ffffffff 0000000000000000 [ 51.362049][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 51.363385][ T4254] Modules linked in: [ 51.363989][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 51.365441][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 51.367031][ T4254] Call trace: [ 51.367571][ T4254] dump_backtrace+0x0/0x458 [ 51.368395][ T4254] show_stack+0x2c/0x3c [ 51.369106][ T4254] __dump_stack+0x30/0x40 [ 51.369854][ T4254] dump_stack_lvl+0xf4/0x15c [ 51.370676][ T4254] dump_stack+0x1c/0x5c [ 51.371428][ T4254] bad_page+0x188/0x1a8 [ 51.372171][ T4254] check_free_page_bad+0xf4/0x16c [ 51.373080][ T4254] free_unref_page_prepare+0x748/0xa94 [ 51.374044][ T4254] free_unref_page_list+0xdc/0x740 [ 51.374896][ T4254] release_pages+0x13a0/0x16c0 [ 51.375780][ T4254] __pagevec_release+0x84/0xf8 [ 51.376664][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 51.377705][ T4254] truncate_inode_pages+0x2c/0x3c [ 51.378521][ T4254] dbUnmount+0xf4/0x168 [ 51.379229][ T4254] jfs_umount+0x1c4/0x324 [ 51.379970][ T4254] jfs_put_super+0x90/0x18c [ 51.380719][ T4254] generic_shutdown_super+0x138/0x2f8 [ 51.381608][ T4254] kill_block_super+0x78/0xe0 [ 51.382353][ T4254] deactivate_locked_super+0xc0/0x13c [ 51.383276][ T4254] deactivate_super+0xf0/0x110 [ 51.384121][ T4254] cleanup_mnt+0x3bc/0x470 [ 51.384912][ T4254] __cleanup_mnt+0x20/0x30 [ 51.385690][ T4254] task_work_run+0x13c/0x1e8 [ 51.386485][ T4254] do_notify_resume+0x2488/0x30a8 [ 51.387330][ T4254] el0_svc+0xf0/0x1d0 [ 51.388011][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 51.388893][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 51.580117][ T4563] ERROR: (device loop0): dbDiscardAG: -EIO [ 51.580117][ T4563] [ 51.581709][ T4563] JFS: sb_issue_discard(000000007fde79ab, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 51.583657][ T4563] blkno = 8000000000400, nblocks = 400 [ 51.584654][ T4563] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 51.584654][ T4563] [ 51.590266][ T4254] BUG: Bad page state in process syz-executor.0 pfn:10fe6e [ 51.591686][ T4254] page:000000001e0a15b7 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10fe6e [ 51.593258][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 51.594916][ T4254] raw: 05ffc00000002006 fffffc000333fe48 ffff80001f5075a0 0000000000000000 [ 51.596381][ T4254] raw: 0000000000000004 ffff0000db80f2e8 00000000ffffffff 0000000000000000 [ 51.597783][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 51.599611][ T4254] Modules linked in: [ 51.600263][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 51.601591][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 51.603285][ T4254] Call trace: [ 51.603865][ T4254] dump_backtrace+0x0/0x458 [ 51.604609][ T4254] show_stack+0x2c/0x3c [ 51.605303][ T4254] __dump_stack+0x30/0x40 [ 51.606021][ T4254] dump_stack_lvl+0xf4/0x15c [ 51.606765][ T4254] dump_stack+0x1c/0x5c [ 51.607417][ T4254] bad_page+0x188/0x1a8 [ 51.608126][ T4254] check_free_page_bad+0xf4/0x16c [ 51.609076][ T4254] free_unref_page_prepare+0x748/0xa94 [ 51.610058][ T4254] free_unref_page_list+0xdc/0x740 [ 51.610906][ T4254] release_pages+0x13a0/0x16c0 [ 51.611641][ T4254] __pagevec_release+0x84/0xf8 [ 51.612407][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 51.613348][ T4254] truncate_inode_pages+0x2c/0x3c [ 51.614154][ T4254] dbUnmount+0xf4/0x168 [ 51.614875][ T4254] jfs_umount+0x1c4/0x324 [ 51.615716][ T4254] jfs_put_super+0x90/0x18c [ 51.616608][ T4254] generic_shutdown_super+0x138/0x2f8 [ 51.617592][ T4254] kill_block_super+0x78/0xe0 [ 51.618562][ T4254] deactivate_locked_super+0xc0/0x13c [ 51.619656][ T4254] deactivate_super+0xf0/0x110 [ 51.620591][ T4254] cleanup_mnt+0x3bc/0x470 [ 51.621446][ T4254] __cleanup_mnt+0x20/0x30 [ 51.622288][ T4254] task_work_run+0x13c/0x1e8 [ 51.623180][ T4254] do_notify_resume+0x2488/0x30a8 [ 51.624051][ T4254] el0_svc+0xf0/0x1d0 [ 51.624742][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 51.625603][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 51.792767][ T4565] ERROR: (device loop0): dbDiscardAG: -EIO [ 51.792767][ T4565] [ 51.794297][ T4565] JFS: sb_issue_discard(000000004e3a38a0, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 51.796190][ T4565] blkno = 8000000000400, nblocks = 400 [ 51.797076][ T4565] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 51.797076][ T4565] [ 51.802506][ T4254] BUG: Bad page state in process syz-executor.0 pfn:10aa3d [ 51.803734][ T4254] page:000000009189d190 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x10aa3d [ 51.805342][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 51.806876][ T4254] raw: 05ffc00000002006 fffffc0003716fc8 ffff80001f5075a0 0000000000000000 [ 51.808639][ T4254] raw: 0000000000000004 ffff0000c90b75d0 00000000ffffffff 0000000000000000 [ 51.810146][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 51.811322][ T4254] Modules linked in: [ 51.811978][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 51.813462][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 51.815122][ T4254] Call trace: [ 51.815632][ T4254] dump_backtrace+0x0/0x458 [ 51.816408][ T4254] show_stack+0x2c/0x3c [ 51.817070][ T4254] __dump_stack+0x30/0x40 [ 51.817831][ T4254] dump_stack_lvl+0xf4/0x15c [ 51.818689][ T4254] dump_stack+0x1c/0x5c [ 51.819422][ T4254] bad_page+0x188/0x1a8 [ 51.820278][ T4254] check_free_page_bad+0xf4/0x16c [ 51.821198][ T4254] free_unref_page_prepare+0x748/0xa94 [ 51.822157][ T4254] free_unref_page_list+0xdc/0x740 [ 51.823128][ T4254] release_pages+0x13a0/0x16c0 [ 51.824010][ T4254] __pagevec_release+0x84/0xf8 [ 51.824792][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 51.825778][ T4254] truncate_inode_pages+0x2c/0x3c [ 51.826668][ T4254] dbUnmount+0xf4/0x168 [ 51.827377][ T4254] jfs_umount+0x1c4/0x324 [ 51.828123][ T4254] jfs_put_super+0x90/0x18c [ 51.829018][ T4254] generic_shutdown_super+0x138/0x2f8 [ 51.830073][ T4254] kill_block_super+0x78/0xe0 [ 51.830888][ T4254] deactivate_locked_super+0xc0/0x13c [ 51.831869][ T4254] deactivate_super+0xf0/0x110 [ 51.832935][ T4254] cleanup_mnt+0x3bc/0x470 [ 51.833719][ T4254] __cleanup_mnt+0x20/0x30 [ 51.834539][ T4254] task_work_run+0x13c/0x1e8 [ 51.835339][ T4254] do_notify_resume+0x2488/0x30a8 [ 51.836156][ T4254] el0_svc+0xf0/0x1d0 [ 51.836799][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 51.837636][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 52.022238][ T4567] ERROR: (device loop0): dbDiscardAG: -EIO [ 52.022238][ T4567] [ 52.023731][ T4567] JFS: sb_issue_discard(0000000020cab70f, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 52.025503][ T4567] blkno = 8000000000400, nblocks = 400 [ 52.026425][ T4567] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 52.026425][ T4567] [ 52.031035][ T4254] BUG: Bad page state in process syz-executor.0 pfn:111e78 [ 52.032248][ T4254] page:0000000052fd7313 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x111e78 [ 52.033792][ T4254] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 52.035037][ T4254] raw: 05ffc00000002006 fffffc00032aa008 ffff80001f5075a0 0000000000000000 [ 52.036350][ T4254] raw: 0000000000000004 ffff0000ccc274d8 00000000ffffffff 0000000000000000 [ 52.037662][ T4254] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 52.039634][ T4254] Modules linked in: [ 52.040253][ T4254] CPU: 0 PID: 4254 Comm: syz-executor.0 Tainted: G B syzkaller #0 [ 52.041782][ T4254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 52.043359][ T4254] Call trace: [ 52.043926][ T4254] dump_backtrace+0x0/0x458 [ 52.044612][ T4254] show_stack+0x2c/0x3c [ 52.045309][ T4254] __dump_stack+0x30/0x40 [ 52.046056][ T4254] dump_stack_lvl+0xf4/0x15c [ 52.046777][ T4254] dump_stack+0x1c/0x5c [ 52.047459][ T4254] bad_page+0x188/0x1a8 [ 52.048162][ T4254] check_free_page_bad+0xf4/0x16c [ 52.049027][ T4254] free_unref_page_prepare+0x748/0xa94 [ 52.049978][ T4254] free_unref_page_list+0xdc/0x740 [ 52.050858][ T4254] release_pages+0x13a0/0x16c0 [ 52.051641][ T4254] __pagevec_release+0x84/0xf8 [ 52.052593][ T4254] truncate_inode_pages_range+0x2e0/0xa44 [ 52.053751][ T4254] truncate_inode_pages+0x2c/0x3c [ 52.054636][ T4254] dbUnmount+0xf4/0x168 [ 52.055383][ T4254] jfs_umount+0x1c4/0x324 [ 52.056297][ T4254] jfs_put_super+0x90/0x18c [ 52.057183][ T4254] generic_shutdown_super+0x138/0x2f8 [ 52.058182][ T4254] kill_block_super+0x78/0xe0 [ 52.058987][ T4254] deactivate_locked_super+0xc0/0x13c [ 52.059922][ T4254] deactivate_super+0xf0/0x110 [ 52.060680][ T4254] cleanup_mnt+0x3bc/0x470 [ 52.061411][ T4254] __cleanup_mnt+0x20/0x30 [ 52.062165][ T4254] task_work_run+0x13c/0x1e8 [ 52.063005][ T4254] do_notify_resume+0x2488/0x30a8 [ 52.063838][ T4254] el0_svc+0xf0/0x1d0 [ 52.064505][ T4254] el0t_64_sync_handler+0xcc/0xe4 [ 52.065410][ T4254] el0t_64_sync+0x1a0/0x1a4 [ 52.223370][ T4569] ERROR: (device loop0): dbDiscardAG: -EIO [ 52.223370][ T4569] [ 52.225052][ T4569] JFS: sb_issue_discard(000000005e1d3233, 2251799813686272, 1024, GFP_NOFS, 0) = -5 => failed! [ 52.226742][ T4569] blkno = 8000000000400, nblocks = 400 [ 52.227712][ T4569] ERROR: (device loop0): dbFree: block to be freed is outside the map [ 52.227712][ T4569] [ 52.271583][ T4107] BUG: Bad page state in process udevd pfn:11a598 [ 52.272722][ T4107] page:00000000a284b8d8 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x11a598 [ 52.274423][ T4107] flags: 0x5ffc00000002006(referenced|uptodate|private|node=0|zone=2|lastcpupid=0x7ff) [ 52.275998][ T4107] raw: 05ffc00000002006 fffffc0003594588 ffff80001ea87220 0000000000000000 [ 52.277477][ T4107] raw: 0000000000000004 ffff0000c662f4d8 00000000ffffffff 0000000000000000 [ 52.279112][ T4107] page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set [ 52.280247][ T4107] Modules linked in: [ 52.280903][ T4107] CPU: 0 PID: 4107 Comm: udevd Tainted: G B syzkaller #0 [ 52.282181][ T4107] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 52.283551][ T4107] Call trace: [ 52.284106][ T4107] dump_backtrace+0x0/0x458 [ 52.284838][ T4107] show_stack+0x2c/0x3c [ 52.285429][ T4107] __dump_stack+0x30/0x40 [ 52.286071][ T4107] dump_stack_lvl+0xf4/0x15c [ 52.286748][ T4107] dump_stack+0x1c/0x5c [ 52.287387][ T4107] bad_page+0x188/0x1a8 [ 52.288068][ T4107] check_free_page_bad+0xf4/0x16c [ 52.288949][ T4107] free_unref_page_prepare+0x748/0xa94 [ 52.289922][ T4107] free_unref_page_list+0xdc/0x740 [ 52.290841][ T4107] release_pages+0x13a0/0x16c0 [ 52.291657][ T4107] __pagevec_lru_add+0x1290/0x1598 [ 52.292563][ T4107] lru_add_drain_cpu+0xbc/0x5a8 [ 52.293356][ T4107] lru_add_drain+0x8c/0x164 [ 52.294128][ T4107] __pagevec_release+0x5c/0xf8 [ 52.294981][ T4107] shmem_undo_range+0x4b4/0x1234 [ 52.295786][ T4107] shmem_evict_inode+0x1cc/0x860 [ 52.296611][ T4107] evict+0x3d8/0x824 [ 52.297241][ T4107] iput+0x6b4/0x770 [ 52.297891][ T4107] dentry_unlink_inode+0x360/0x438 [ 52.298778][ T4107] __dentry_kill+0x318/0x590 [ 52.299606][ T4107] dentry_kill+0xcc/0x24c [ 52.300410][ T4107] dput+0x22c/0x448 [ 52.301072][ T4107] do_renameat2+0x74c/0xc90 [ 52.301896][ T4107] __arm64_sys_renameat+0xcc/0xe8 [ 52.302744][ T4107] invoke_syscall+0x98/0x28c [ 52.303555][ T4107] el0_svc_common+0x13c/0x258 [ 52.304388][ T4107] do_el0_svc+0x5c/0x140 [ 52.305242][ T4107] el0_svc+0x78/0x1d0 [ 52.306037][ T4107] el0t_64_sync_handler+0xcc/0xe4 [ 52.307049][ T4107] el0t_64_sync+0x1a0/0x1a4