Warning: Permanently added '10.128.0.9' (ED25519) to the list of known hosts.
2026/08/17 06:26:12 parsed 1 programs
2026/08/17 06:26:12 serving rpc on tcp://36285
[   77.897599][ T5632] cgroup: Unknown subsys name 'net'
[   77.982595][ T5632] cgroup: Unknown subsys name 'cpuset'
[   77.991767][ T5632] cgroup: Unknown subsys name 'rlimit'
Setting up swapspace version 1, size = 127995904 bytes
[   79.363285][ T5632] Adding 124996k swap on ./swap-file.  Priority:0 extents:1 across:124996k 
[   82.305069][ T5645] soft_limit_in_bytes is deprecated and will be removed. Writing any value to this file has no effect. Please report your usecase to linux-mm@kvack.org if you depend on this functionality.
[   83.636330][ T5666] bridge0: port 1(bridge_slave_0) entered blocking state
[   83.636970][ T5666] bridge0: port 1(bridge_slave_0) entered disabled state
[   83.637101][ T5666] bridge_slave_0: entered allmulticast mode
[   83.638922][ T5666] bridge_slave_0: entered promiscuous mode
[   83.647128][ T5666] bridge0: port 2(bridge_slave_1) entered blocking state
[   83.647294][ T5666] bridge0: port 2(bridge_slave_1) entered disabled state
[   83.647402][ T5666] bridge_slave_1: entered allmulticast mode
[   83.649099][ T5666] bridge_slave_1: entered promiscuous mode
[   83.680812][ T5666] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[   83.683845][ T5666] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[   83.711538][ T5666] team0: Port device team_slave_0 added
[   83.714470][ T5666] team0: Port device team_slave_1 added
[   83.734040][ T5666] batman_adv: batadv0: Adding interface: batadv_slave_0
[   83.734061][ T5666] 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 1532 would solve the problem.
[   83.734929][ T5666] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[   83.737571][ T5666] batman_adv: batadv0: Adding interface: batadv_slave_1
[   83.737584][ T5666] 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 1532 would solve the problem.
[   83.737607][ T5666] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[   83.784325][ T5666] hsr_slave_0: entered promiscuous mode
[   83.785409][ T5666] hsr_slave_1: entered promiscuous mode
[   83.937545][ T5666] netdevsim netdevsim0 netdevsim0: renamed from eth0
[   83.949739][ T5666] 8021q: adding VLAN 0 to HW filter on device netdevsim0
[   83.950581][ T5666] netdevsim netdevsim0 netdevsim1: renamed from eth1
[   83.962423][ T5666] 8021q: adding VLAN 0 to HW filter on device netdevsim1
[   83.965682][ T5666] netdevsim netdevsim0 netdevsim2: renamed from eth2
[   83.974191][ T5666] 8021q: adding VLAN 0 to HW filter on device netdevsim2
[   83.975509][ T5666] netdevsim netdevsim0 netdevsim3: renamed from eth3
[   83.982128][ T5666] 8021q: adding VLAN 0 to HW filter on device netdevsim3
[   84.016803][ T5666] bridge0: port 2(bridge_slave_1) entered blocking state
[   84.016949][ T5666] bridge0: port 2(bridge_slave_1) entered forwarding state
[   84.017624][ T5666] bridge0: port 1(bridge_slave_0) entered blocking state
[   84.017742][ T5666] bridge0: port 1(bridge_slave_0) entered forwarding state
[   84.077330][ T5666] 8021q: adding VLAN 0 to HW filter on device bond0
[   84.094725][   T59] bridge0: port 1(bridge_slave_0) entered disabled state
[   84.102438][   T59] bridge0: port 2(bridge_slave_1) entered disabled state
[   84.117085][ T5666] 8021q: adding VLAN 0 to HW filter on device team0
[   84.127084][   T59] bridge0: port 1(bridge_slave_0) entered blocking state
[   84.127212][   T59] bridge0: port 1(bridge_slave_0) entered forwarding state
[   84.135896][   T59] bridge0: port 2(bridge_slave_1) entered blocking state
[   84.135996][   T59] bridge0: port 2(bridge_slave_1) entered forwarding state
[   84.421904][ T5666] 8021q: adding VLAN 0 to HW filter on device batadv0
[   84.466159][ T5666] veth0_vlan: entered promiscuous mode
[   84.474090][ T5666] veth1_vlan: entered promiscuous mode
[   84.497437][ T5666] veth0_macvtap: entered promiscuous mode
[   84.502648][ T5666] veth1_macvtap: entered promiscuous mode
[   84.525091][ T5666] batman_adv: batadv0: Interface activated: batadv_slave_0
[   84.529245][ T5666] batman_adv: batadv0: Interface activated: batadv_slave_1
[   84.581664][   T13] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[   84.581722][   T13] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[   84.581770][   T13] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[   84.581801][   T13] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[   84.720322][   T59] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[   84.800202][   T59] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[   84.847440][   T59] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[   84.876801][   T52] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[   84.884728][   T52] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[   84.892107][   T52] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[   84.901707][   T52] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[   84.910619][   T52] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[   84.934034][   T59] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[   85.574158][   T50] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   85.585114][   T50] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   85.616096][ T1015] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   85.616137][ T1015] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   86.790701][   T44] cfg80211: failed to load regulatory.db
2026/08/17 06:26:24 executed programs: 0
[   86.899014][   T52] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[   86.901251][   T52] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[   86.902242][   T52] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[   86.903063][   T52] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[   86.904256][   T52] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[   87.176819][   T59] bridge_slave_1: left allmulticast mode
[   87.176885][   T59] bridge_slave_1: left promiscuous mode
[   87.177835][   T59] bridge0: port 2(bridge_slave_1) entered disabled state
[   87.200596][   T59] bridge_slave_0: left allmulticast mode
[   87.200622][   T59] bridge_slave_0: left promiscuous mode
[   87.200835][   T59] bridge0: port 1(bridge_slave_0) entered disabled state
[   87.315444][   T59] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[   87.327004][   T59] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[   87.338138][   T59] bond0 (unregistering): Released all slaves
[   87.439265][   T59] hsr_slave_0: left promiscuous mode
[   87.445099][   T59] hsr_slave_1: left promiscuous mode
[   87.446128][   T59] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[   87.446156][   T59] batman_adv: batadv0: Removing interface: batadv_slave_0
[   87.452421][   T59] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[   87.452439][   T59] batman_adv: batadv0: Removing interface: batadv_slave_1
[   87.474712][   T59] veth1_macvtap: left promiscuous mode
[   87.474827][   T59] veth0_macvtap: left promiscuous mode
[   87.474927][   T59] veth1_vlan: left promiscuous mode
[   87.475005][   T59] veth0_vlan: left promiscuous mode
[   87.783883][   T59] team0 (unregistering): Port device team_slave_1 removed
[   87.816120][   T59] team0 (unregistering): Port device team_slave_0 removed
[   87.954641][ T5283] 8021q: adding VLAN 0 to HW filter on device eth1
[   88.238435][ T5756] bridge0: port 1(bridge_slave_0) entered blocking state
[   88.245931][ T5756] bridge0: port 1(bridge_slave_0) entered disabled state
[   88.254373][ T5756] bridge_slave_0: entered allmulticast mode
[   88.262215][ T5756] bridge_slave_0: entered promiscuous mode
[   88.272488][ T5756] bridge0: port 2(bridge_slave_1) entered blocking state
[   88.273611][ T5756] bridge0: port 2(bridge_slave_1) entered disabled state
[   88.273759][ T5756] bridge_slave_1: entered allmulticast mode
[   88.297892][ T5756] bridge_slave_1: entered promiscuous mode
[   88.347637][ T5756] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[   88.365871][ T5756] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[   88.814942][ T5756] team0: Port device team_slave_0 added
[   88.834629][ T5283] 8021q: adding VLAN 0 to HW filter on device eth2
[   88.844990][ T5756] team0: Port device team_slave_1 added
[   88.879680][ T5756] batman_adv: batadv0: Adding interface: batadv_slave_0
[   88.886725][ T5756] 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 1532 would solve the problem.
[   88.893221][ T5756] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[   88.895195][ T5756] batman_adv: batadv0: Adding interface: batadv_slave_1
[   88.895208][ T5756] 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 1532 would solve the problem.
[   88.895230][ T5756] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[   88.940423][ T4937] Bluetooth: hci0: command tx timeout
[   88.953170][ T5756] hsr_slave_0: entered promiscuous mode
[   88.954161][ T5756] hsr_slave_1: entered promiscuous mode
[   89.828527][ T5756] netdevsim netdevsim0 netdevsim0: renamed from eth0
[   89.841322][ T5756] 8021q: adding VLAN 0 to HW filter on device netdevsim0
[   89.842498][ T5756] netdevsim netdevsim0 netdevsim1: renamed from eth1
[   89.858785][ T5756] 8021q: adding VLAN 0 to HW filter on device netdevsim1
[   89.864037][ T5756] netdevsim netdevsim0 netdevsim2: renamed from eth2
[   89.873754][ T5756] 8021q: adding VLAN 0 to HW filter on device netdevsim2
[   89.874810][ T5756] netdevsim netdevsim0 netdevsim3: renamed from eth3
[   89.885130][ T5756] 8021q: adding VLAN 0 to HW filter on device netdevsim3
[   89.993171][ T5756] 8021q: adding VLAN 0 to HW filter on device bond0
[   90.012648][ T5756] 8021q: adding VLAN 0 to HW filter on device team0
[   90.031769][ T1015] bridge0: port 1(bridge_slave_0) entered blocking state
[   90.031878][ T1015] bridge0: port 1(bridge_slave_0) entered forwarding state
[   90.053249][   T59] bridge0: port 2(bridge_slave_1) entered blocking state
[   90.053362][   T59] bridge0: port 2(bridge_slave_1) entered forwarding state
[   90.551630][ T5756] 8021q: adding VLAN 0 to HW filter on device batadv0
[   90.617843][ T5756] veth0_vlan: entered promiscuous mode
[   90.632371][ T5756] veth1_vlan: entered promiscuous mode
[   90.667907][ T5756] veth0_macvtap: entered promiscuous mode
[   90.678346][ T5756] veth1_macvtap: entered promiscuous mode
[   90.706290][ T5756] batman_adv: batadv0: Interface activated: batadv_slave_0
[   90.726607][ T5756] batman_adv: batadv0: Interface activated: batadv_slave_1
[   90.762395][ T1015] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[   90.789782][   T13] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[   90.809512][ T1015] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[   90.809567][ T1015] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[   90.852380][ T1015] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   90.852418][ T1015] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   90.903009][ T4214] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   90.903057][ T4214] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   91.020623][ T4937] Bluetooth: hci0: command tx timeout
[   91.266132][ T5866] loop0: detected capacity change from 0 to 40427
[   91.275161][ T5866] =======================================================
[   91.275161][ T5866] WARNING: The mand mount option has been deprecated and
[   91.275161][ T5866]          and is ignored by this kernel. Remove the mand
[   91.275161][ T5866]          option from the mount to silence this warning.
[   91.275161][ T5866] =======================================================
[   91.323329][ T5866] F2FS-fs (loop0): Invalid log blocks per segment (1)
[   91.334609][ T5866] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[   91.343732][ T5866] F2FS-fs (loop0): Image doesn't support compression
[   91.343760][ T5866] F2FS-fs (loop0): build fault injection rate: 690
[   91.343773][ T5866] F2FS-fs (loop0): build fault injection type: 0x35f7
[   91.384547][ T5866] F2FS-fs (loop0): invalid crc value
[   91.517031][ T5866] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[   91.520307][ T5866] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0
[   91.520339][ T5866] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0
[   91.520548][ T5866] F2FS-fs (loop0): Start checkpoint disabled!
[   91.527221][ T5866] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0
[   91.546979][ T5866] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[   91.547167][ T5866] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6
[   91.592256][   T13] kworker/u8:1: attempt to access beyond end of device
[   91.592256][   T13] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[   91.592855][   T13] CPU: 0 UID: 0 PID: 13 Comm: kworker/u8:1 Not tainted syzkaller #0 PREEMPT(full) 
[   91.592879][   T13] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   91.592892][   T13] Workqueue: writeback wb_workfn (flush-7:0)
[   91.592945][   T13] Call Trace:
[   91.592956][   T13]  <TASK>
[   91.592972][   T13]  dump_stack_lvl+0xe8/0x150
[   91.593003][   T13]  f2fs_stop_checkpoint+0x3f6/0x5d0
[   91.593033][   T13]  f2fs_write_end_bio+0x1211/0x16e0
[   91.593063][ 
** replaying previous printk message **
[   91.593063][   T13]  ? blkg_put+0x22/0x240
[   91.593101][   T13]  __submit_merged_bio+0x258/0x6a0
[   91.593123][   T13]  ? rcu_is_watching+0x16/0xb0
[   91.593153][   T13]  __submit_merged_write_cond+0x3c9/0x4e0
[   91.593185][   T13]  ? __pfx___submit_merged_write_cond+0x10/0x10
[   91.593233][   T13]  f2fs_write_data_pages+0x2a27/0x36f0
[   91.593296][   T13]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   91.593336][   T13]  ? __pfx_f2fs_available_free_memory+0x10/0x10
[   91.593399][   T13]  ? __pfx_f2fs_balance_fs_bg+0x10/0x10
[   91.593444][   T13]  ? __lock_acquire+0x6df/0x2e50
[   91.593480][   T13]  ? trace_pelt_se_tp+0x3b/0x150
[   91.593504][   T13]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   91.593531][   T13]  do_writepages+0x338/0x560
[   91.593563][   T13]  ? reacquire_held_locks+0x117/0x1a0
[   91.593585][   T13]  ? writeback_sb_inodes+0x450/0x1b00
[   91.593610][   T13]  __writeback_single_inode+0x136/0x1220
[   91.593632][   T13]  ? do_raw_spin_unlock+0xf5/0x200
[   91.593663][   T13]  writeback_sb_inodes+0x9de/0x1b00
[   91.593680][   T13]  ? __lock_acquire+0x6df/0x2e50
[   91.593725][   T13]  ? __pfx_writeback_sb_inodes+0x10/0x10
[   91.593788][   T13]  ? rcu_is_watching+0x16/0xb0
[   91.593810][   T13]  ? queue_io+0x2d3/0x470
[   91.593831][   T13]  wb_writeback+0x41c/0xad0
[   91.593863][   T13]  ? queue_io+0x1f1/0x470
[   91.593888][   T13]  ? __pfx_wb_writeback+0x10/0x10
[   91.593913][   T13]  ? do_raw_spin_lock+0x12b/0x2f0
[   91.593956][   T13]  wb_workfn+0x431/0x10f0
[   91.594005][   T13]  ? __pfx_wb_workfn+0x10/0x10
[   91.594032][   T13]  ? rcu_is_watching+0x16/0xb0
[   91.594054][   T13]  ? trace_hrtimer_start+0x82/0x200
[   91.594088][   T13]  ? do_raw_spin_lock+0x12b/0x2f0
[   91.594122][   T13]  ? lock_acquire+0x115/0x350
[   91.594150][   T13]  ? rcu_is_watching+0x16/0xb0
[   91.594174][   T13]  ? process_scheduled_works+0x97a/0x1630
[   91.594199][   T13]  process_scheduled_works+0xc3d/0x1630
[   91.594257][   T13]  ? __pfx_process_scheduled_works+0x10/0x10
[   91.594288][   T13]  ? assign_work+0x3cf/0x5d0
[   91.594317][   T13]  worker_thread+0xa47/0xfb0
[   91.594376][   T13]  kthread+0x38b/0x480
[   91.594396][   T13]  ? __pfx_worker_thread+0x10/0x10
[   91.594418][   T13]  ? __pfx_kthread+0x10/0x10
[   91.594438][   T13]  ret_from_fork+0x514/0xb70
[   91.594460][   T13]  ? __pfx_ret_from_fork+0x10/0x10
[   91.594489][   T13]  ? __switch_to+0xc89/0x1420
[   91.594518][   T13]  ? __pfx_kthread+0x10/0x10
[   91.594538][   T13]  ret_from_fork_asm+0x1a/0x30
[   91.594584][   T13]  </TASK>
[   91.598045][   T13] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[   91.657183][ T5756] 
[   91.914315][ T5756] =============================
[   91.919168][ T5756] WARNING: suspicious RCU usage
[   91.924109][ T5756] syzkaller #0 Not tainted
[   91.928521][ T5756] -----------------------------
[   91.933426][ T5756] ./include/linux/radix-tree.h:179 suspicious rcu_dereference_check() usage!
[   91.942343][ T5756] 
[   91.942343][ T5756] other info that might help us debug this:
[   91.942343][ T5756] 
[   91.952647][ T5756] 
[   91.952647][ T5756] rcu_scheduler_active = 2, debug_locks = 1
[   91.960782][ T5756] locks held by syz-executor/5756: 2, last CPU#0:
[   91.967198][ T5756]  #0: ffff888079faa0e8 (&type->s_umount_key#56){+.+.}-{4:4}, at: deactivate_super+0xac/0xe0
[   91.977432][ T5756]  #1: ffff88801cf908c8 (&im->ino_lock){+.+.}-{3:3}, at: f2fs_remove_ino_entry+0x18d/0x3f0
[   91.987597][ T5756] 
[   91.987597][ T5756] stack backtrace:
[   91.993548][ T5756] CPU: 0 UID: 0 PID: 5756 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
[   92.003034][ T5756] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   92.013085][ T5756] Call Trace:
[   92.016351][ T5756]  <TASK>
[   92.019263][ T5756]  dump_stack_lvl+0xe8/0x150
[   92.023840][ T5756]  lockdep_rcu_suspicious+0x140/0x1d0
[   92.029197][ T5756]  f2fs_remove_ino_entry+0x3ae/0x3f0
[   92.034468][ T5756]  f2fs_evict_inode+0x83d/0x21f0
[   92.039387][ T5756]  ? add_lock_to_list+0xc7/0x100
[   92.044348][ T5756]  ? __pfx_f2fs_evict_inode+0x10/0x10
[   92.049719][ T5756]  ? do_raw_spin_lock+0x12b/0x2f0
[   92.054762][ T5756]  ? do_raw_spin_unlock+0xf5/0x200
[   92.059868][ T5756]  ? __pfx_f2fs_evict_inode+0x10/0x10
[   92.065221][ T5756]  evict+0x624/0xb50
[   92.069111][ T5756]  ? __pfx_evict+0x10/0x10
[   92.073542][ T5756]  ? do_raw_spin_unlock+0xf5/0x200
[   92.078655][ T5756]  ? _raw_spin_unlock+0x28/0x50
[   92.083498][ T5756]  ? iput+0xb84/0xf00
[   92.087471][ T5756]  f2fs_evict_inode+0x20f/0x21f0
[   92.092398][ T5756]  ? inode_wait_for_writeback+0x16d/0x3b0
[   92.098106][ T5756]  ? __pfx_f2fs_evict_inode+0x10/0x10
[   92.103475][ T5756]  ? do_raw_spin_lock+0x12b/0x2f0
[   92.108562][ T5756]  ? do_raw_spin_unlock+0xf5/0x200
[   92.113684][ T5756]  ? __pfx_f2fs_evict_inode+0x10/0x10
[   92.119053][ T5756]  evict+0x624/0xb50
[   92.122954][ T5756]  ? __pfx_evict+0x10/0x10
[   92.127366][ T5756]  ? do_raw_spin_lock+0x12b/0x2f0
[   92.132404][ T5756]  evict_inodes+0x7e3/0x870
[   92.136905][ T5756]  ? __pfx_cgroup_writeback_umount+0x10/0x10
[   92.142885][ T5756]  ? __pfx_evict_inodes+0x10/0x10
[   92.147905][ T5756]  ? sync_filesystem+0x1f9/0x240
[   92.152842][ T5756]  generic_shutdown_super+0xaa/0x2d0
[   92.158124][ T5756]  kill_block_super+0x44/0xa0
[   92.162796][ T5756]  kill_f2fs_super+0x3b3/0x700
[   92.167574][ T5756]  ? __pfx_kill_f2fs_super+0x10/0x10
[   92.172874][ T5756]  ? call_rcu+0x64d/0x8b0
[   92.177196][ T5756]  ? lockdep_hardirqs_on+0x7b/0x110
[   92.182396][ T5756]  deactivate_locked_super+0xbc/0x110
[   92.187764][ T5756]  cleanup_mnt+0x3d3/0x460
[   92.192181][ T5756]  task_work_run+0x1d9/0x270
[   92.196786][ T5756]  ? __pfx_task_work_run+0x10/0x10
[   92.201909][ T5756]  exit_to_user_mode_loop+0x204/0x770
[   92.207292][ T5756]  ? rcu_is_watching+0x16/0xb0
[   92.212062][ T5756]  do_syscall_64+0x328/0x520
[   92.216649][ T5756]  ? trace_irq_disable+0x3b/0x140
[   92.221663][ T5756]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   92.227720][ T5756]  ? clear_bhb_loop+0x70/0xc0
[   92.232410][ T5756]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   92.238468][ T5756] RIP: 0033:0x7f896299f317
[   92.242888][ T5756] Code: a2 c7 05 dc 43 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[   92.262489][ T5756] RSP: 002b:00007ffc3257e798 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[   92.270904][ T5756] RAX: 0000000000000000 RBX: 00007f8962a34474 RCX: 00007f896299f317
[   92.278869][ T5756] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc3257e850
[   92.286854][ T5756] RBP: 00007ffc3257e850 R08: 00007ffc3257f850 R09: 00000000ffffffff
[   92.294815][ T5756] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc3257f8e0
[   92.302782][ T5756] R13: 00007f8962a34474 R14: 0000000000016591 R15: 00007ffc3257f920
[   92.310773][ T5756]  </TASK>
[   92.683463][ T5890] loop0: detected capacity change from 0 to 40427
[   92.691872][ T5890] F2FS-fs (loop0): Invalid log blocks per segment (1)
[   92.691923][ T5890] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[   92.698899][ T5890] F2FS-fs (loop0): Image doesn't support compression
[   92.698927][ T5890] F2FS-fs (loop0): build fault injection rate: 690
[   92.698941][ T5890] F2FS-fs (loop0): build fault injection type: 0x35f7
[   92.702558][ T5890] F2FS-fs (loop0): invalid crc value
[   92.803110][ T5890] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[   92.805634][ T5890] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0
[   92.805660][ T5890] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0
[   92.805682][ T5890] F2FS-fs (loop0): Start checkpoint disabled!
[   92.810271][ T5890] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0
2026/08/17 06:26:30 executed programs: 4
[   92.811178][ T5890] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[   92.811198][ T5890] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6
[   92.842705][ T1015] kworker/u8:7: attempt to access beyond end of device
[   92.842705][ T1015] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[   92.843332][ T1015] CPU: 1 UID: 0 PID: 1015 Comm: kworker/u8:7 Not tainted syzkaller #0 PREEMPT(full) 
[   92.843356][ T1015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   92.843367][ T1015] Workqueue: writeback wb_workfn (flush-7:0)
[   92.843402][ T1015] Call Trace:
[   92.843409][ T1015]  <TASK>
[   92.843417][ T1015]  dump_stack_lvl+0xe8/0x150
[   92.843446][ T1015]  f2fs_stop_checkpoint+0x3f6/0x5d0
[   92.843474][ T1015]  f2fs_write_end_bio+0x1211/0x16e0
[   92.843502][ T1015]  ? blkg_put+0x22/0x240
[   92.843538][ T1015]  __submit_merged_bio+0x258/0x6a0
[   92.843560][ T1015]  ? rcu_is_watching+0x16/0xb0
[   92.843588][ T1015]  __submit_merged_write_cond+0x3c9/0x4e0
[   92.843618][ T1015]  ? __pfx___submit_merged_write_cond+0x10/0x10
[   92.843662][ T1015]  f2fs_write_data_pages+0x2a27/0x36f0
[   92.843720][ T1015]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   92.843758][ T1015]  ? __pfx_f2fs_available_free_memory+0x10/0x10
[   92.843816][ T1015]  ? __pfx_f2fs_balance_fs_bg+0x10/0x10
[   92.843855][ T1015]  ? __lock_acquire+0x6df/0x2e50
[   92.843889][ T1015]  ? __pfx_f2fs_inode_chksum_set+0x10/0x10
[   92.843908][ T1015]  ? f2fs_update_inode+0x146f/0x25c0
[   92.843928][ T1015]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   92.843954][ T1015]  do_writepages+0x338/0x560
[   92.843986][ T1015]  ? reacquire_held_locks+0x117/0x1a0
[   92.844006][ T1015]  ? writeback_sb_inodes+0x450/0x1b00
[   92.844033][ T1015]  __writeback_single_inode+0x136/0x1220
[   92.844055][ T1015]  ? do_raw_spin_unlock+0xf5/0x200
[   92.844084][ T1015]  writeback_sb_inodes+0x9de/0x1b00
[   92.844100][ T1015]  ? __lock_acquire+0x6df/0x2e50
[   92.844133][ T1015]  ? lock_acquire+0x115/0x350
[   92.844158][ T1015]  ? __pfx_writeback_sb_inodes+0x10/0x10
[   92.844215][ T1015]  ? rcu_is_watching+0x16/0xb0
[   92.844236][ T1015]  ? queue_io+0x2d3/0x470
[   92.844257][ T1015]  wb_writeback+0x41c/0xad0
[   92.844293][ T1015]  ? queue_io+0x1f1/0x470
[   92.844316][ T1015]  ? __pfx_wb_writeback+0x10/0x10
[   92.844341][ T1015]  ? do_raw_spin_lock+0x12b/0x2f0
[   92.844381][ T1015]  wb_workfn+0x431/0x10f0
[   92.844422][ T1015]  ? __pfx_wb_workfn+0x10/0x10
[   92.844448][ T1015]  ? rcu_is_watching+0x16/0xb0
[   92.844470][ T1015]  ? trace_hrtimer_start+0x82/0x200
[   92.844501][ T1015]  ? do_raw_spin_lock+0x12b/0x2f0
[   92.844534][ T1015]  ? lock_acquire+0x115/0x350
[   92.844561][ T1015]  ? rcu_is_watching+0x16/0xb0
[   92.844584][ T1015]  ? process_scheduled_works+0x97a/0x1630
[   92.844608][ T1015]  process_scheduled_works+0xc3d/0x1630
[   92.844661][ T1015]  ? __pfx_process_scheduled_works+0x10/0x10
[   92.844691][ T1015]  ? assign_work+0x3cf/0x5d0
[   92.844719][ T1015]  worker_thread+0xa47/0xfb0
[   92.844757][ T1015]  ? __kthread_parkme+0x71/0x1f0
[   92.844793][ T1015]  kthread+0x38b/0x480
[   92.844811][ T1015]  ? __pfx_worker_thread+0x10/0x10
[   92.844834][ T1015]  ? __pfx_kthread+0x10/0x10
[   92.844853][ T1015]  ret_from_fork+0x514/0xb70
[   92.844875][ T1015]  ? __pfx_ret_from_fork+0x10/0x10
[   92.844902][ T1015]  ? __switch_to+0xc89/0x1420
[   92.844928][ T1015]  ? __pfx_kthread+0x10/0x10
[   92.844948][ T1015]  ret_from_fork_asm+0x1a/0x30
[   92.844992][ T1015]  </TASK>
[   92.847052][ T1015] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[   93.104890][ T4937] Bluetooth: hci0: command tx timeout
[   93.366056][ T5894] loop0: detected capacity change from 0 to 40427
[   93.374319][ T5894] F2FS-fs (loop0): Invalid log blocks per segment (1)
[   93.374341][ T5894] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[   93.390148][ T5894] F2FS-fs (loop0): Image doesn't support compression
[   93.390170][ T5894] F2FS-fs (loop0): build fault injection rate: 690
[   93.390184][ T5894] F2FS-fs (loop0): build fault injection type: 0x35f7
[   93.397432][ T5894] F2FS-fs (loop0): invalid crc value
[   93.475859][ T5894] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[   93.478408][ T5894] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0
[   93.478430][ T5894] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0
[   93.478452][ T5894] F2FS-fs (loop0): Start checkpoint disabled!
[   93.483142][ T5894] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0
[   93.484021][ T5894] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[   93.484041][ T5894] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6
[   93.506730][ T1015] kworker/u8:7: attempt to access beyond end of device
[   93.506730][ T1015] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[   93.506800][ T1015] CPU: 1 UID: 0 PID: 1015 Comm: kworker/u8:7 Not tainted syzkaller #0 PREEMPT(full) 
[   93.506821][ T1015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   93.506833][ T1015] Workqueue: writeback wb_workfn (flush-7:0)
[   93.506870][ T1015] Call Trace:
[   93.506877][ T1015]  <TASK>
[   93.506885][ T1015]  dump_stack_lvl+0xe8/0x150
[   93.506914][ T1015]  f2fs_stop_checkpoint+0x3f6/0x5d0
[   93.506942][ T1015]  f2fs_write_end_bio+0x1211/0x16e0
[   93.506970][ T1015]  ? blkg_put+0x22/0x240
[   93.507005][ T1015]  __submit_merged_bio+0x258/0x6a0
[   93.507027][ T1015]  ? rcu_is_watching+0x16/0xb0
[   93.507054][ T1015]  __submit_merged_write_cond+0x3c9/0x4e0
[   93.507084][ T1015]  ? __pfx___submit_merged_write_cond+0x10/0x10
[   93.507128][ T1015]  f2fs_write_data_pages+0x2a27/0x36f0
[   93.507186][ T1015]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   93.507223][ T1015]  ? __pfx_f2fs_available_free_memory+0x10/0x10
[   93.507283][ T1015]  ? __pfx_f2fs_balance_fs_bg+0x10/0x10
[   93.507321][ T1015]  ? __lock_acquire+0x6df/0x2e50
[   93.507356][ T1015]  ? __pfx_f2fs_inode_chksum_set+0x10/0x10
[   93.507375][ T1015]  ? f2fs_update_inode+0x146f/0x25c0
[   93.507394][ T1015]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   93.507421][ T1015]  do_writepages+0x338/0x560
[   93.507452][ T1015]  ? reacquire_held_locks+0x117/0x1a0
[   93.507473][ T1015]  ? writeback_sb_inodes+0x450/0x1b00
[   93.507496][ T1015]  __writeback_single_inode+0x136/0x1220
[   93.507518][ T1015]  ? do_raw_spin_unlock+0xf5/0x200
[   93.507548][ T1015]  writeback_sb_inodes+0x9de/0x1b00
[   93.507564][ T1015]  ? __lock_acquire+0x6df/0x2e50
[   93.507597][ T1015]  ? lock_acquire+0x115/0x350
[   93.507621][ T1015]  ? __pfx_writeback_sb_inodes+0x10/0x10
[   93.507680][ T1015]  ? rcu_is_watching+0x16/0xb0
[   93.507701][ T1015]  ? queue_io+0x2d3/0x470
[   93.507728][ T1015]  wb_writeback+0x41c/0xad0
[   93.507759][ T1015]  ? queue_io+0x1f1/0x470
[   93.507782][ T1015]  ? __pfx_wb_writeback+0x10/0x10
[   93.507807][ T1015]  ? do_raw_spin_lock+0x12b/0x2f0
[   93.507847][ T1015]  wb_workfn+0x431/0x10f0
[   93.507889][ T1015]  ? __pfx_wb_workfn+0x10/0x10
[   93.507914][ T1015]  ? rcu_is_watching+0x16/0xb0
[   93.507936][ T1015]  ? trace_hrtimer_start+0x82/0x200
[   93.507968][ T1015]  ? do_raw_spin_lock+0x12b/0x2f0
[   93.508001][ T1015]  ? lock_acquire+0x115/0x350
[   93.508027][ T1015]  ? rcu_is_watching+0x16/0xb0
[   93.508051][ T1015]  ? process_scheduled_works+0x97a/0x1630
[   93.508076][ T1015]  process_scheduled_works+0xc3d/0x1630
[   93.508129][ T1015]  ? __pfx_process_scheduled_works+0x10/0x10
[   93.508160][ T1015]  ? assign_work+0x3cf/0x5d0
[   93.508189][ T1015]  worker_thread+0xa47/0xfb0
[   93.508226][ T1015]  ? __kthread_parkme+0x71/0x1f0
[   93.508262][ T1015]  kthread+0x38b/0x480
[   93.508281][ T1015]  ? __pfx_worker_thread+0x10/0x10
[   93.508303][ T1015]  ? __pfx_kthread+0x10/0x10
[   93.508323][ T1015]  ret_from_fork+0x514/0xb70
[   93.508344][ T1015]  ? __pfx_ret_from_fork+0x10/0x10
[   93.508373][ T1015]  ? __switch_to+0xc89/0x1420
[   93.508400][ T1015]  ? __pfx_kthread+0x10/0x10
[   93.508420][ T1015]  ret_from_fork_asm+0x1a/0x30
[   93.508463][ T1015]  </TASK>
[   93.516651][ T1015] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[   94.016483][ T5898] loop0: detected capacity change from 0 to 40427
[   94.018790][ T5898] F2FS-fs (loop0): Invalid log blocks per segment (1)
[   94.018812][ T5898] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[   94.019105][ T5898] F2FS-fs (loop0): Image doesn't support compression
[   94.019121][ T5898] F2FS-fs (loop0): build fault injection rate: 690
[   94.019133][ T5898] F2FS-fs (loop0): build fault injection type: 0x35f7
[   94.022351][ T5898] F2FS-fs (loop0): invalid crc value
[   94.102381][ T5898] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[   94.116303][ T5898] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0
[   94.116357][ T5898] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0
[   94.116380][ T5898] F2FS-fs (loop0): Start checkpoint disabled!
[   94.122929][ T5898] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0
[   94.123832][ T5898] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[   94.123852][ T5898] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6
[   94.144164][   T13] kworker/u8:1: attempt to access beyond end of device
[   94.144164][   T13] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[   94.144242][   T13] CPU: 1 UID: 0 PID: 13 Comm: kworker/u8:1 Not tainted syzkaller #0 PREEMPT(full) 
[   94.144263][   T13] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   94.144274][   T13] Workqueue: writeback wb_workfn (flush-7:0)
[   94.144309][   T13] Call Trace:
[   94.144316][   T13]  <TASK>
[   94.144324][   T13]  dump_stack_lvl+0xe8/0x150
[   94.144353][   T13]  f2fs_stop_checkpoint+0x3f6/0x5d0
[   94.144381][   T13]  f2fs_write_end_bio+0x1211/0x16e0
[   94.144410][   T13]  ? blkg_put+0x22/0x240
[   94.144446][   T13]  __submit_merged_bio+0x258/0x6a0
[   94.144467][   T13]  ? rcu_is_watching+0x16/0xb0
[   94.144495][   T13]  __submit_merged_write_cond+0x3c9/0x4e0
[   94.144526][   T13]  ? __pfx___submit_merged_write_cond+0x10/0x10
[   94.144569][   T13]  f2fs_write_data_pages+0x2a27/0x36f0
[   94.144629][   T13]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   94.144665][   T13]  ? __pfx_f2fs_available_free_memory+0x10/0x10
[   94.144724][   T13]  ? __pfx_f2fs_balance_fs_bg+0x10/0x10
[   94.144763][   T13]  ? __lock_acquire+0x6df/0x2e50
[   94.144798][   T13]  ? __pfx_f2fs_inode_chksum_set+0x10/0x10
[   94.144817][   T13]  ? f2fs_update_inode+0x146f/0x25c0
[   94.144837][   T13]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   94.144862][   T13]  do_writepages+0x338/0x560
[   94.144894][   T13]  ? reacquire_held_locks+0x117/0x1a0
[   94.144915][   T13]  ? writeback_sb_inodes+0x450/0x1b00
[   94.144939][   T13]  __writeback_single_inode+0x136/0x1220
[   94.144961][   T13]  ? do_raw_spin_unlock+0xf5/0x200
[   94.144992][   T13]  writeback_sb_inodes+0x9de/0x1b00
[   94.145009][   T13]  ? __lock_acquire+0x6df/0x2e50
[   94.145042][   T13]  ? lock_acquire+0x115/0x350
[   94.145065][   T13]  ? __pfx_writeback_sb_inodes+0x10/0x10
[   94.145123][   T13]  ? rcu_is_watching+0x16/0xb0
[   94.145145][   T13]  ? queue_io+0x2d3/0x470
[   94.145166][   T13]  wb_writeback+0x41c/0xad0
[   94.145201][   T13]  ? queue_io+0x1f1/0x470
[   94.145224][   T13]  ? __pfx_wb_writeback+0x10/0x10
[   94.145249][   T13]  ? do_raw_spin_lock+0x12b/0x2f0
[   94.145289][   T13]  wb_workfn+0x431/0x10f0
[   94.145330][   T13]  ? __pfx_wb_workfn+0x10/0x10
[   94.145356][   T13]  ? rcu_is_watching+0x16/0xb0
[   94.145377][   T13]  ? trace_hrtimer_start+0x82/0x200
[   94.145409][   T13]  ? do_raw_spin_lock+0x12b/0x2f0
[   94.145442][   T13]  ? lock_acquire+0x115/0x350
[   94.145469][   T13]  ? rcu_is_watching+0x16/0xb0
[   94.145499][   T13]  ? process_scheduled_works+0x97a/0x1630
[   94.145524][   T13]  process_scheduled_works+0xc3d/0x1630
[   94.145578][   T13]  ? __pfx_process_scheduled_works+0x10/0x10
[   94.145608][   T13]  ? assign_work+0x3cf/0x5d0
[   94.145636][   T13]  worker_thread+0xa47/0xfb0
[   94.145687][   T13]  kthread+0x38b/0x480
[   94.145705][   T13]  ? __pfx_worker_thread+0x10/0x10
[   94.145728][   T13]  ? __pfx_kthread+0x10/0x10
[   94.145747][   T13]  ret_from_fork+0x514/0xb70
[   94.145768][   T13]  ? __pfx_ret_from_fork+0x10/0x10
[   94.145796][   T13]  ? __switch_to+0xc89/0x1420
[   94.145824][   T13]  ? __pfx_kthread+0x10/0x10
[   94.145844][   T13]  ret_from_fork_asm+0x1a/0x30
[   94.145887][   T13]  </TASK>
[   94.146979][   T13] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[   94.816092][ T5902] loop0: detected capacity change from 0 to 40427
[   94.823463][ T5902] F2FS-fs (loop0): Invalid log blocks per segment (1)
[   94.823497][ T5902] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[   94.823804][ T5902] F2FS-fs (loop0): Image doesn't support compression
[   94.823825][ T5902] F2FS-fs (loop0): build fault injection rate: 690
[   94.823841][ T5902] F2FS-fs (loop0): build fault injection type: 0x35f7
[   94.830498][ T5902] F2FS-fs (loop0): invalid crc value
[   94.925692][ T5902] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[   94.928055][ T5902] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0
[   94.928079][ T5902] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0
[   94.928102][ T5902] F2FS-fs (loop0): Start checkpoint disabled!
[   94.936715][ T5902] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0
[   94.945939][ T5902] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[   94.945963][ T5902] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6
[   94.982864][   T13] kworker/u8:1: attempt to access beyond end of device
[   94.982864][   T13] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[   94.982938][   T13] CPU: 0 UID: 0 PID: 13 Comm: kworker/u8:1 Not tainted syzkaller #0 PREEMPT(full) 
[   94.982959][   T13] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   94.982970][   T13] Workqueue: writeback wb_workfn (flush-7:0)
[   94.983004][   T13] Call Trace:
[   94.983012][   T13]  <TASK>
[   94.983020][   T13]  dump_stack_lvl+0xe8/0x150
[   94.983049][   T13]  f2fs_stop_checkpoint+0x3f6/0x5d0
[   94.983075][   T13]  f2fs_write_end_bio+0x1211/0x16e0
[   94.983113][   T13]  ? blkg_put+0x22/0x240
[   94.983149][   T13]  __submit_merged_bio+0x258/0x6a0
[   94.983170][   T13]  ? rcu_is_watching+0x16/0xb0
[   94.983197][   T13]  __submit_merged_write_cond+0x3c9/0x4e0
[   94.983228][   T13]  ? __pfx___submit_merged_write_cond+0x10/0x10
[   94.983272][   T13]  f2fs_write_data_pages+0x2a27/0x36f0
[   94.983331][   T13]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   94.983402][   T13]  ? ktime_get+0x45/0x220
[   94.983432][   T13]  ? lapic_next_event+0x11/0x20
[   94.983451][   T13]  ? clockevents_program_event+0x491/0x630
[   94.983492][   T13]  ? irqentry_exit+0x218/0x910
[   94.983516][   T13]  ? irqentry_exit+0x218/0x910
[   94.983535][   T13]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   94.983562][   T13]  do_writepages+0x338/0x560
[   94.983592][   T13]  ? reacquire_held_locks+0x117/0x1a0
[   94.983614][   T13]  ? writeback_sb_inodes+0x450/0x1b00
[   94.983637][   T13]  __writeback_single_inode+0x136/0x1220
[   94.983660][   T13]  ? do_raw_spin_unlock+0xf5/0x200
[   94.983688][   T13]  writeback_sb_inodes+0x9de/0x1b00
[   94.983705][   T13]  ? __lock_acquire+0x6df/0x2e50
[   94.983738][   T13]  ? lock_acquire+0x115/0x350
[   94.983762][   T13]  ? __pfx_writeback_sb_inodes+0x10/0x10
[   94.983820][   T13]  ? rcu_is_watching+0x16/0xb0
[   94.983842][   T13]  ? queue_io+0x2d3/0x470
[   94.983866][   T13]  wb_writeback+0x41c/0xad0
[   94.983896][   T13]  ? queue_io+0x1f1/0x470
[   94.983920][   T13]  ? __pfx_wb_writeback+0x10/0x10
[   94.983945][   T13]  ? do_raw_spin_lock+0x12b/0x2f0
[   94.983984][   T13]  wb_workfn+0x431/0x10f0
[   94.984025][   T13]  ? __pfx_wb_workfn+0x10/0x10
[   94.984051][   T13]  ? rcu_is_watching+0x16/0xb0
[   94.984073][   T13]  ? trace_hrtimer_start+0x82/0x200
[   94.984110][   T13]  ? do_raw_spin_lock+0x12b/0x2f0
[   94.984143][   T13]  ? lock_acquire+0x115/0x350
[   94.984170][   T13]  ? rcu_is_watching+0x16/0xb0
[   94.984192][   T13]  ? process_scheduled_works+0x97a/0x1630
[   94.984217][   T13]  process_scheduled_works+0xc3d/0x1630
[   94.984271][   T13]  ? __pfx_process_scheduled_works+0x10/0x10
[   94.984300][   T13]  ? assign_work+0x3cf/0x5d0
[   94.984329][   T13]  worker_thread+0xa47/0xfb0
[   94.984380][   T13]  kthread+0x38b/0x480
[   94.984399][   T13]  ? __pfx_worker_thread+0x10/0x10
[   94.984421][   T13]  ? __pfx_kthread+0x10/0x10
[   94.984441][   T13]  ret_from_fork+0x514/0xb70
[   94.984462][   T13]  ? __pfx_ret_from_fork+0x10/0x10
[   94.984490][   T13]  ? __switch_to+0xc89/0x1420
[   94.984518][   T13]  ? __pfx_kthread+0x10/0x10
[   94.984538][   T13]  ret_from_fork_asm+0x1a/0x30
[   94.984581][   T13]  </TASK>
[   94.985996][   T13] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[   95.180337][ T4937] Bluetooth: hci0: command tx timeout
[   95.465693][ T5906] loop0: detected capacity change from 0 to 40427
[   95.479867][ T5906] F2FS-fs (loop0): Invalid log blocks per segment (1)
[   95.479902][ T5906] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[   95.480501][ T5906] F2FS-fs (loop0): Image doesn't support compression
[   95.480522][ T5906] F2FS-fs (loop0): build fault injection rate: 690
[   95.480548][ T5906] F2FS-fs (loop0): build fault injection type: 0x35f7
[   95.482949][ T5906] F2FS-fs (loop0): invalid crc value
[   95.580609][ T5906] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[   95.583799][ T5906] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0
[   95.583825][ T5906] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0
[   95.583848][ T5906] F2FS-fs (loop0): Start checkpoint disabled!
[   95.587168][ T5906] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0
[   95.588424][ T5906] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[   95.588446][ T5906] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6
[   95.618205][ T1015] kworker/u8:7: attempt to access beyond end of device
[   95.618205][ T1015] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[   95.618275][ T1015] CPU: 1 UID: 0 PID: 1015 Comm: kworker/u8:7 Not tainted syzkaller #0 PREEMPT(full) 
[   95.618296][ T1015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   95.618307][ T1015] Workqueue: writeback wb_workfn (flush-7:0)
[   95.618342][ T1015] Call Trace:
[   95.618349][ T1015]  <TASK>
[   95.618357][ T1015]  dump_stack_lvl+0xe8/0x150
[   95.618386][ T1015]  f2fs_stop_checkpoint+0x3f6/0x5d0
[   95.618456][ T1015]  f2fs_write_end_bio+0x1211/0x16e0
[   95.618486][ T1015]  ? blkg_put+0x22/0x240
[   95.618521][ T1015]  __submit_merged_bio+0x258/0x6a0
[   95.618550][ T1015]  ? rcu_is_watching+0x16/0xb0
[   95.618584][ T1015]  __submit_merged_write_cond+0x3c9/0x4e0
[   95.618615][ T1015]  ? __pfx___submit_merged_write_cond+0x10/0x10
[   95.618659][ T1015]  f2fs_write_data_pages+0x2a27/0x36f0
[   95.618717][ T1015]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   95.618758][ T1015]  ? __pfx_f2fs_available_free_memory+0x10/0x10
[   95.618817][ T1015]  ? __pfx_f2fs_balance_fs_bg+0x10/0x10
[   95.618857][ T1015]  ? __lock_acquire+0x6df/0x2e50
[   95.618890][ T1015]  ? __pfx_f2fs_inode_chksum_set+0x10/0x10
[   95.618909][ T1015]  ? f2fs_update_inode+0x146f/0x25c0
[   95.618929][ T1015]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   95.618956][ T1015]  do_writepages+0x338/0x560
[   95.618987][ T1015]  ? reacquire_held_locks+0x117/0x1a0
[   95.619008][ T1015]  ? writeback_sb_inodes+0x450/0x1b00
[   95.619032][ T1015]  __writeback_single_inode+0x136/0x1220
[   95.619053][ T1015]  ? do_raw_spin_unlock+0xf5/0x200
[   95.619083][ T1015]  writeback_sb_inodes+0x9de/0x1b00
[   95.619099][ T1015]  ? __lock_acquire+0x6df/0x2e50
[   95.619132][ T1015]  ? lock_acquire+0x115/0x350
[   95.619156][ T1015]  ? __pfx_writeback_sb_inodes+0x10/0x10
[   95.619214][ T1015]  ? rcu_is_watching+0x16/0xb0
[   95.619235][ T1015]  ? queue_io+0x2d3/0x470
[   95.619256][ T1015]  wb_writeback+0x41c/0xad0
[   95.619287][ T1015]  ? queue_io+0x1f1/0x470
[   95.619310][ T1015]  ? __pfx_wb_writeback+0x10/0x10
[   95.619335][ T1015]  ? do_raw_spin_lock+0x12b/0x2f0
[   95.619375][ T1015]  wb_workfn+0x431/0x10f0
[   95.619416][ T1015]  ? __pfx_wb_workfn+0x10/0x10
[   95.619444][ T1015]  ? timerqueue_linked_add+0x287/0x2e0
[   95.619477][ T1015]  ? do_raw_spin_lock+0x12b/0x2f0
[   95.619510][ T1015]  ? lock_acquire+0x115/0x350
[   95.619542][ T1015]  ? rcu_is_watching+0x16/0xb0
[   95.619565][ T1015]  ? process_scheduled_works+0x97a/0x1630
[   95.619590][ T1015]  process_scheduled_works+0xc3d/0x1630
[   95.619643][ T1015]  ? __pfx_process_scheduled_works+0x10/0x10
[   95.619673][ T1015]  ? assign_work+0x3cf/0x5d0
[   95.619702][ T1015]  worker_thread+0xa47/0xfb0
[   95.619739][ T1015]  ? __kthread_parkme+0x71/0x1f0
[   95.619776][ T1015]  kthread+0x38b/0x480
[   95.619794][ T1015]  ? __pfx_worker_thread+0x10/0x10
[   95.619816][ T1015]  ? __pfx_kthread+0x10/0x10
[   95.619835][ T1015]  ret_from_fork+0x514/0xb70
[   95.619857][ T1015]  ? __pfx_ret_from_fork+0x10/0x10
[   95.619885][ T1015]  ? __switch_to+0xc89/0x1420
[   95.619912][ T1015]  ? __pfx_kthread+0x10/0x10
[   95.619932][ T1015]  ret_from_fork_asm+0x1a/0x30
[   95.619975][ T1015]  </TASK>
[   95.622022][ T1015] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[   96.112800][ T5910] loop0: detected capacity change from 0 to 40427
[   96.119936][ T5910] F2FS-fs (loop0): Invalid log blocks per segment (1)
[   96.119955][ T5910] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[   96.120241][ T5910] F2FS-fs (loop0): Image doesn't support compression
[   96.120257][ T5910] F2FS-fs (loop0): build fault injection rate: 690
[   96.120269][ T5910] F2FS-fs (loop0): build fault injection type: 0x35f7
[   96.121561][ T5910] F2FS-fs (loop0): invalid crc value
[   96.194295][ T5910] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[   96.197566][ T5910] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0
[   96.197590][ T5910] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0
[   96.197613][ T5910] F2FS-fs (loop0): Start checkpoint disabled!
[   96.201786][ T5910] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0
[   96.203039][ T5910] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[   96.203061][ T5910] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6
[   96.227047][   T50] kworker/u8:3: attempt to access beyond end of device
[   96.227047][   T50] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[   96.227115][   T50] CPU: 1 UID: 0 PID: 50 Comm: kworker/u8:3 Not tainted syzkaller #0 PREEMPT(full) 
[   96.227136][   T50] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   96.227148][   T50] Workqueue: writeback wb_workfn (flush-7:0)
[   96.227183][   T50] Call Trace:
[   96.227190][   T50]  <TASK>
[   96.227198][   T50]  dump_stack_lvl+0xe8/0x150
[   96.227227][   T50]  f2fs_stop_checkpoint+0x3f6/0x5d0
[   96.227255][   T50]  f2fs_write_end_bio+0x1211/0x16e0
[   96.227284][   T50]  ? blkg_put+0x22/0x240
[   96.227319][   T50]  __submit_merged_bio+0x258/0x6a0
[   96.227340][   T50]  ? rcu_is_watching+0x16/0xb0
[   96.227367][   T50]  __submit_merged_write_cond+0x3c9/0x4e0
[   96.227402][   T50]  ? __pfx___submit_merged_write_cond+0x10/0x10
[   96.227446][   T50]  f2fs_write_data_pages+0x2a27/0x36f0
[   96.227514][   T50]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   96.227551][   T50]  ? __pfx_f2fs_available_free_memory+0x10/0x10
[   96.227610][   T50]  ? __pfx_f2fs_balance_fs_bg+0x10/0x10
[   96.227649][   T50]  ? __lock_acquire+0x6df/0x2e50
[   96.227683][   T50]  ? __pfx_f2fs_inode_chksum_set+0x10/0x10
[   96.227703][   T50]  ? f2fs_update_inode+0x146f/0x25c0
[   96.227723][   T50]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   96.227749][   T50]  do_writepages+0x338/0x560
[   96.227781][   T50]  ? reacquire_held_locks+0x117/0x1a0
[   96.227802][   T50]  ? writeback_sb_inodes+0x450/0x1b00
[   96.227825][   T50]  __writeback_single_inode+0x136/0x1220
[   96.227847][   T50]  ? do_raw_spin_unlock+0xf5/0x200
[   96.227876][   T50]  writeback_sb_inodes+0x9de/0x1b00
[   96.227893][   T50]  ? __lock_acquire+0x6df/0x2e50
[   96.227924][   T50]  ? lock_acquire+0x115/0x350
[   96.227949][   T50]  ? __pfx_writeback_sb_inodes+0x10/0x10
[   96.228006][   T50]  ? rcu_is_watching+0x16/0xb0
[   96.228027][   T50]  ? queue_io+0x2d3/0x470
[   96.228048][   T50]  wb_writeback+0x41c/0xad0
[   96.228079][   T50]  ? queue_io+0x1f1/0x470
[   96.228102][   T50]  ? __pfx_wb_writeback+0x10/0x10
[   96.228127][   T50]  ? do_raw_spin_lock+0x12b/0x2f0
[   96.228167][   T50]  wb_workfn+0x431/0x10f0
[   96.228209][   T50]  ? __pfx_wb_workfn+0x10/0x10
[   96.228235][   T50]  ? rcu_is_watching+0x16/0xb0
[   96.228257][   T50]  ? trace_hrtimer_start+0x82/0x200
[   96.228289][   T50]  ? do_raw_spin_lock+0x12b/0x2f0
[   96.228322][   T50]  ? lock_acquire+0x115/0x350
[   96.228348][   T50]  ? rcu_is_watching+0x16/0xb0
[   96.228371][   T50]  ? process_scheduled_works+0x97a/0x1630
[   96.228396][   T50]  process_scheduled_works+0xc3d/0x1630
[   96.228450][   T50]  ? __pfx_process_scheduled_works+0x10/0x10
[   96.228485][   T50]  ? assign_work+0x3cf/0x5d0
[   96.228514][   T50]  worker_thread+0xa47/0xfb0
[   96.228564][   T50]  kthread+0x38b/0x480
[   96.228583][   T50]  ? __pfx_worker_thread+0x10/0x10
[   96.228605][   T50]  ? __pfx_kthread+0x10/0x10
[   96.228625][   T50]  ret_from_fork+0x514/0xb70
[   96.228647][   T50]  ? __pfx_ret_from_fork+0x10/0x10
[   96.228674][   T50]  ? __switch_to+0xc89/0x1420
[   96.228702][   T50]  ? __pfx_kthread+0x10/0x10
[   96.228722][   T50]  ret_from_fork_asm+0x1a/0x30
[   96.228765][   T50]  </TASK>
[   96.237026][   T50] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[   96.751072][ T5914] loop0: detected capacity change from 0 to 40427
[   96.759736][ T5914] F2FS-fs (loop0): Invalid log blocks per segment (1)
[   96.759775][ T5914] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[   96.761419][ T5914] F2FS-fs (loop0): Image doesn't support compression
[   96.761437][ T5914] F2FS-fs (loop0): build fault injection rate: 690
[   96.761450][ T5914] F2FS-fs (loop0): build fault injection type: 0x35f7
[   96.762301][ T5914] F2FS-fs (loop0): invalid crc value
[   96.851310][ T5914] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[   96.864584][ T5914] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0
[   96.872428][ T5914] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0
[   96.883786][ T5914] F2FS-fs (loop0): Start checkpoint disabled!
[   96.895190][ T5914] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0
[   96.896126][ T5914] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[   96.896146][ T5914] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6
[   96.915559][ T1015] kworker/u8:7: attempt to access beyond end of device
[   96.915559][ T1015] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[   96.915632][ T1015] CPU: 0 UID: 0 PID: 1015 Comm: kworker/u8:7 Not tainted syzkaller #0 PREEMPT(full) 
[   96.915653][ T1015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   96.915665][ T1015] Workqueue: writeback wb_workfn (flush-7:0)
[   96.915700][ T1015] Call Trace:
[   96.915707][ T1015]  <TASK>
[   96.915714][ T1015]  dump_stack_lvl+0xe8/0x150
[   96.915744][ T1015]  f2fs_stop_checkpoint+0x3f6/0x5d0
[   96.915771][ T1015]  f2fs_write_end_bio+0x1211/0x16e0
[   96.915800][ T1015]  ? blkg_put+0x22/0x240
[   96.915836][ T1015]  __submit_merged_bio+0x258/0x6a0
[   96.915856][ T1015]  ? rcu_is_watching+0x16/0xb0
[   96.915884][ T1015]  __submit_merged_write_cond+0x3c9/0x4e0
[   96.915914][ T1015]  ? __pfx___submit_merged_write_cond+0x10/0x10
[   96.915978][ T1015]  f2fs_write_data_pages+0x2a27/0x36f0
[   96.916037][ T1015]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   96.916074][ T1015]  ? __pfx_f2fs_available_free_memory+0x10/0x10
[   96.916133][ T1015]  ? __pfx_f2fs_balance_fs_bg+0x10/0x10
[   96.916173][ T1015]  ? __lock_acquire+0x6df/0x2e50
[   96.916207][ T1015]  ? __pfx_f2fs_inode_chksum_set+0x10/0x10
[   96.916226][ T1015]  ? f2fs_update_inode+0x146f/0x25c0
[   96.916246][ T1015]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   96.916272][ T1015]  do_writepages+0x338/0x560
[   96.916304][ T1015]  ? reacquire_held_locks+0x117/0x1a0
[   96.916325][ T1015]  ? writeback_sb_inodes+0x450/0x1b00
[   96.916349][ T1015]  __writeback_single_inode+0x136/0x1220
[   96.916370][ T1015]  ? do_raw_spin_unlock+0xf5/0x200
[   96.916400][ T1015]  writeback_sb_inodes+0x9de/0x1b00
[   96.916417][ T1015]  ? __lock_acquire+0x6df/0x2e50
[   96.916450][ T1015]  ? lock_acquire+0x115/0x350
[   96.916473][ T1015]  ? __pfx_writeback_sb_inodes+0x10/0x10
[   96.916532][ T1015]  ? rcu_is_watching+0x16/0xb0
[   96.916554][ T1015]  ? queue_io+0x2d3/0x470
[   96.916575][ T1015]  wb_writeback+0x41c/0xad0
[   96.916605][ T1015]  ? queue_io+0x1f1/0x470
[   96.916631][ T1015]  ? __pfx_wb_writeback+0x10/0x10
[   96.916657][ T1015]  ? do_raw_spin_lock+0x12b/0x2f0
[   96.916696][ T1015]  wb_workfn+0x431/0x10f0
[   96.916738][ T1015]  ? __pfx_wb_workfn+0x10/0x10
[   96.916764][ T1015]  ? rcu_is_watching+0x16/0xb0
[   96.916785][ T1015]  ? trace_hrtimer_start+0x82/0x200
[   96.916817][ T1015]  ? do_raw_spin_lock+0x12b/0x2f0
[   96.916850][ T1015]  ? lock_acquire+0x115/0x350
[   96.916876][ T1015]  ? rcu_is_watching+0x16/0xb0
[   96.916899][ T1015]  ? process_scheduled_works+0x97a/0x1630
[   96.916924][ T1015]  process_scheduled_works+0xc3d/0x1630
[   96.917000][ T1015]  ? __pfx_process_scheduled_works+0x10/0x10
[   96.917033][ T1015]  ? assign_work+0x3cf/0x5d0
[   96.917065][ T1015]  worker_thread+0xa47/0xfb0
[   96.917104][ T1015]  ? __kthread_parkme+0x71/0x1f0
[   96.917139][ T1015]  kthread+0x38b/0x480
[   96.917158][ T1015]  ? __pfx_worker_thread+0x10/0x10
[   96.917180][ T1015]  ? __pfx_kthread+0x10/0x10
[   96.917199][ T1015]  ret_from_fork+0x514/0xb70
[   96.917219][ T1015]  ? __pfx_ret_from_fork+0x10/0x10
[   96.917247][ T1015]  ? __switch_to+0xc89/0x1420
[   96.917285][ T1015]  ? __pfx_kthread+0x10/0x10
[   96.917304][ T1015]  ret_from_fork_asm+0x1a/0x30
[   96.917347][ T1015]  </TASK>
[   96.922734][ T1015] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[   97.392328][ T5918] loop0: detected capacity change from 0 to 40427
[   97.399850][ T5918] F2FS-fs (loop0): Invalid log blocks per segment (1)
[   97.399870][ T5918] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[   97.400179][ T5918] F2FS-fs (loop0): Image doesn't support compression
[   97.400195][ T5918] F2FS-fs (loop0): build fault injection rate: 690
[   97.400208][ T5918] F2FS-fs (loop0): build fault injection type: 0x35f7
[   97.400924][ T5918] F2FS-fs (loop0): invalid crc value
[   97.488278][ T5918] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[   97.499695][ T5918] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0
[   97.507470][ T5918] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0
[   97.518423][ T5918] F2FS-fs (loop0): Start checkpoint disabled!
[   97.529033][ T5918] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0
[   97.537609][ T5918] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[   97.544847][ T5918] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6
[   97.557033][   T13] kworker/u8:1: attempt to access beyond end of device
[   97.557033][   T13] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[   97.559018][   T13] CPU: 1 UID: 0 PID: 13 Comm: kworker/u8:1 Not tainted syzkaller #0 PREEMPT(full) 
[   97.559042][   T13] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   97.559053][   T13] Workqueue: writeback wb_workfn (flush-7:0)
[   97.559088][   T13] Call Trace:
[   97.559096][   T13]  <TASK>
[   97.559104][   T13]  dump_stack_lvl+0xe8/0x150
[   97.559133][   T13]  f2fs_stop_checkpoint+0x3f6/0x5d0
[   97.559161][   T13]  f2fs_write_end_bio+0x1211/0x16e0
[   97.559190][   T13]  ? blkg_put+0x22/0x240
[   97.559225][   T13]  __submit_merged_bio+0x258/0x6a0
[   97.559246][   T13]  ? rcu_is_watching+0x16/0xb0
[   97.559274][   T13]  __submit_merged_write_cond+0x3c9/0x4e0
[   97.559305][   T13]  ? __pfx___submit_merged_write_cond+0x10/0x10
[   97.559348][   T13]  f2fs_write_data_pages+0x2a27/0x36f0
[   97.559409][   T13]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   97.559446][   T13]  ? __pfx_f2fs_available_free_memory+0x10/0x10
[   97.559506][   T13]  ? __pfx_f2fs_balance_fs_bg+0x10/0x10
[   97.559545][   T13]  ? __lock_acquire+0x6df/0x2e50
[   97.559579][   T13]  ? __pfx_f2fs_inode_chksum_set+0x10/0x10
[   97.559598][   T13]  ? f2fs_update_inode+0x146f/0x25c0
[   97.559618][   T13]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   97.559644][   T13]  do_writepages+0x338/0x560
[   97.559675][   T13]  ? reacquire_held_locks+0x117/0x1a0
[   97.559696][   T13]  ? writeback_sb_inodes+0x450/0x1b00
[   97.559719][   T13]  __writeback_single_inode+0x136/0x1220
[   97.559741][   T13]  ? do_raw_spin_unlock+0xf5/0x200
[   97.559770][   T13]  writeback_sb_inodes+0x9de/0x1b00
[   97.559786][   T13]  ? __lock_acquire+0x6df/0x2e50
[   97.559819][   T13]  ? lock_acquire+0x115/0x350
[   97.559843][   T13]  ? __pfx_writeback_sb_inodes+0x10/0x10
[   97.559956][   T13]  ? rcu_is_watching+0x16/0xb0
[   97.559978][   T13]  ? queue_io+0x2d3/0x470
[   97.560000][   T13]  wb_writeback+0x41c/0xad0
[   97.560030][   T13]  ? queue_io+0x1f1/0x470
[   97.560052][   T13]  ? __pfx_wb_writeback+0x10/0x10
[   97.560078][   T13]  ? do_raw_spin_lock+0x12b/0x2f0
[   97.560118][   T13]  wb_workfn+0x431/0x10f0
[   97.560159][   T13]  ? __pfx_wb_workfn+0x10/0x10
[   97.560195][   T13]  ? do_raw_spin_lock+0x12b/0x2f0
[   97.560229][   T13]  ? lock_acquire+0x115/0x350
[   97.560254][   T13]  ? rcu_is_watching+0x16/0xb0
[   97.560277][   T13]  ? process_scheduled_works+0x97a/0x1630
[   97.560302][   T13]  process_scheduled_works+0xc3d/0x1630
[   97.560355][   T13]  ? __pfx_process_scheduled_works+0x10/0x10
[   97.560385][   T13]  ? assign_work+0x3cf/0x5d0
[   97.560417][   T13]  worker_thread+0xa47/0xfb0
[   97.560467][   T13]  kthread+0x38b/0x480
[   97.560486][   T13]  ? __pfx_worker_thread+0x10/0x10
[   97.560508][   T13]  ? __pfx_kthread+0x10/0x10
[   97.560528][   T13]  ret_from_fork+0x514/0xb70
[   97.560549][   T13]  ? __pfx_ret_from_fork+0x10/0x10
[   97.560577][   T13]  ? __switch_to+0xc89/0x1420
[   97.560605][   T13]  ? __pfx_kthread+0x10/0x10
[   97.560624][   T13]  ret_from_fork_asm+0x1a/0x30
[   97.560666][   T13]  </TASK>
[   97.564794][   T13] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[   98.040560][ T5922] loop0: detected capacity change from 0 to 40427
[   98.050282][ T5922] F2FS-fs (loop0): Invalid log blocks per segment (1)
[   98.050305][ T5922] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[   98.052757][ T5922] F2FS-fs (loop0): Image doesn't support compression
[   98.052780][ T5922] F2FS-fs (loop0): build fault injection rate: 690
[   98.052793][ T5922] F2FS-fs (loop0): build fault injection type: 0x35f7
[   98.053677][ T5922] F2FS-fs (loop0): invalid crc value
[   98.143794][ T5922] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[   98.146037][ T5922] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0
[   98.146059][ T5922] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0
[   98.146082][ T5922] F2FS-fs (loop0): Start checkpoint disabled!
[   98.148742][ T5922] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0
[   98.154944][ T5922] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
2026/08/17 06:26:35 executed programs: 12
[   98.154967][ T5922] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6
[   98.194652][   T13] kworker/u8:1: attempt to access beyond end of device
[   98.194652][   T13] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[   98.194719][   T13] CPU: 1 UID: 0 PID: 13 Comm: kworker/u8:1 Not tainted syzkaller #0 PREEMPT(full) 
[   98.194740][   T13] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   98.194752][   T13] Workqueue: writeback wb_workfn (flush-7:0)
[   98.194787][   T13] Call Trace:
[   98.194795][   T13]  <TASK>
[   98.194802][   T13]  dump_stack_lvl+0xe8/0x150
[   98.194832][   T13]  f2fs_stop_checkpoint+0x3f6/0x5d0
[   98.194860][   T13]  f2fs_write_end_bio+0x1211/0x16e0
[   98.194890][   T13]  ? blkg_put+0x22/0x240
[   98.194928][   T13]  __submit_merged_bio+0x258/0x6a0
[   98.194950][   T13]  ? rcu_is_watching+0x16/0xb0
[   98.194979][   T13]  __submit_merged_write_cond+0x3c9/0x4e0
[   98.195011][   T13]  ? __pfx___submit_merged_write_cond+0x10/0x10
[   98.195058][   T13]  f2fs_write_data_pages+0x2a27/0x36f0
[   98.195124][   T13]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   98.195163][   T13]  ? __pfx_f2fs_available_free_memory+0x10/0x10
[   98.195226][   T13]  ? __pfx_f2fs_balance_fs_bg+0x10/0x10
[   98.195268][   T13]  ? __lock_acquire+0x6df/0x2e50
[   98.195304][   T13]  ? __pfx_f2fs_inode_chksum_set+0x10/0x10
[   98.195324][   T13]  ? f2fs_update_inode+0x146f/0x25c0
[   98.195344][   T13]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   98.195377][   T13]  do_writepages+0x338/0x560
[   98.195409][   T13]  ? reacquire_held_locks+0x117/0x1a0
[   98.195431][   T13]  ? writeback_sb_inodes+0x450/0x1b00
[   98.195455][   T13]  __writeback_single_inode+0x136/0x1220
[   98.195478][   T13]  ? do_raw_spin_unlock+0xf5/0x200
[   98.195508][   T13]  writeback_sb_inodes+0x9de/0x1b00
[   98.195525][   T13]  ? __lock_acquire+0x6df/0x2e50
[   98.195560][   T13]  ? lock_acquire+0x115/0x350
[   98.195585][   T13]  ? __pfx_writeback_sb_inodes+0x10/0x10
[   98.195648][   T13]  ? rcu_is_watching+0x16/0xb0
[   98.195670][   T13]  ? queue_io+0x2d3/0x470
[   98.195692][   T13]  wb_writeback+0x41c/0xad0
[   98.195723][   T13]  ? queue_io+0x1f1/0x470
[   98.195747][   T13]  ? __pfx_wb_writeback+0x10/0x10
[   98.195773][   T13]  ? do_raw_spin_lock+0x12b/0x2f0
[   98.195815][   T13]  wb_workfn+0x431/0x10f0
[   98.195872][   T13]  ? __pfx_wb_workfn+0x10/0x10
[   98.195899][   T13]  ? rcu_is_watching+0x16/0xb0
[   98.195922][   T13]  ? trace_hrtimer_start+0x82/0x200
[   98.195953][   T13]  ? do_raw_spin_lock+0x12b/0x2f0
[   98.195988][   T13]  ? lock_acquire+0x115/0x350
[   98.196020][   T13]  ? rcu_is_watching+0x16/0xb0
[   98.196044][   T13]  ? process_scheduled_works+0x97a/0x1630
[   98.196069][   T13]  process_scheduled_works+0xc3d/0x1630
[   98.196130][   T13]  ? __pfx_process_scheduled_works+0x10/0x10
[   98.196161][   T13]  ? assign_work+0x3cf/0x5d0
[   98.196192][   T13]  worker_thread+0xa47/0xfb0
[   98.196246][   T13]  kthread+0x38b/0x480
[   98.196266][   T13]  ? __pfx_worker_thread+0x10/0x10
[   98.196289][   T13]  ? __pfx_kthread+0x10/0x10
[   98.196309][   T13]  ret_from_fork+0x514/0xb70
[   98.196331][   T13]  ? __pfx_ret_from_fork+0x10/0x10
[   98.196366][   T13]  ? __switch_to+0xc89/0x1420
[   98.196396][   T13]  ? __pfx_kthread+0x10/0x10
[   98.196416][   T13]  ret_from_fork_asm+0x1a/0x30
[   98.196461][   T13]  </TASK>
[   98.198725][   T13] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[   98.679310][ T5926] loop0: detected capacity change from 0 to 40427
[   98.687566][ T5926] F2FS-fs (loop0): Invalid log blocks per segment (1)
[   98.687600][ T5926] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[   98.694652][ T5926] F2FS-fs (loop0): Image doesn't support compression
[   98.694671][ T5926] F2FS-fs (loop0): build fault injection rate: 690
[   98.694684][ T5926] F2FS-fs (loop0): build fault injection type: 0x35f7
[   98.698814][ T5926] F2FS-fs (loop0): invalid crc value
[   98.785891][ T5926] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[   98.788159][ T5926] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0
[   98.788180][ T5926] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0
[   98.788202][ T5926] F2FS-fs (loop0): Start checkpoint disabled!
[   98.794282][ T5926] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0
[   98.796074][ T5926] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[   98.796094][ T5926] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6
[   98.815636][   T13] kworker/u8:1: attempt to access beyond end of device
[   98.815636][   T13] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[   98.815703][   T13] CPU: 1 UID: 0 PID: 13 Comm: kworker/u8:1 Not tainted syzkaller #0 PREEMPT(full) 
[   98.815724][   T13] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   98.815735][   T13] Workqueue: writeback wb_workfn (flush-7:0)
[   98.815769][   T13] Call Trace:
[   98.815793][   T13]  <TASK>
[   98.815800][   T13]  dump_stack_lvl+0xe8/0x150
[   98.815829][   T13]  f2fs_stop_checkpoint+0x3f6/0x5d0
[   98.815857][   T13]  f2fs_write_end_bio+0x1211/0x16e0
[   98.815886][   T13]  ? blkg_put+0x22/0x240
[   98.815922][   T13]  __submit_merged_bio+0x258/0x6a0
[   98.815943][   T13]  ? rcu_is_watching+0x16/0xb0
[   98.815971][   T13]  __submit_merged_write_cond+0x3c9/0x4e0
[   98.816001][   T13]  ? __pfx___submit_merged_write_cond+0x10/0x10
[   98.816045][   T13]  f2fs_write_data_pages+0x2a27/0x36f0
[   98.816106][   T13]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   98.816143][   T13]  ? __pfx_f2fs_available_free_memory+0x10/0x10
[   98.816202][   T13]  ? __pfx_f2fs_balance_fs_bg+0x10/0x10
[   98.816241][   T13]  ? __lock_acquire+0x6df/0x2e50
[   98.816275][   T13]  ? __pfx_f2fs_inode_chksum_set+0x10/0x10
[   98.816295][   T13]  ? f2fs_update_inode+0x146f/0x25c0
[   98.816321][   T13]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   98.816346][   T13]  do_writepages+0x338/0x560
[   98.816378][   T13]  ? reacquire_held_locks+0x117/0x1a0
[   98.816399][   T13]  ? writeback_sb_inodes+0x450/0x1b00
[   98.816422][   T13]  __writeback_single_inode+0x136/0x1220
[   98.816444][   T13]  ? do_raw_spin_unlock+0xf5/0x200
[   98.816474][   T13]  writeback_sb_inodes+0x9de/0x1b00
[   98.816491][   T13]  ? __lock_acquire+0x6df/0x2e50
[   98.816523][   T13]  ? lock_acquire+0x115/0x350
[   98.816547][   T13]  ? __pfx_writeback_sb_inodes+0x10/0x10
[   98.816605][   T13]  ? rcu_is_watching+0x16/0xb0
[   98.816627][   T13]  ? queue_io+0x2d3/0x470
[   98.816648][   T13]  wb_writeback+0x41c/0xad0
[   98.816679][   T13]  ? queue_io+0x1f1/0x470
[   98.816702][   T13]  ? __pfx_wb_writeback+0x10/0x10
[   98.816727][   T13]  ? do_raw_spin_lock+0x12b/0x2f0
[   98.816767][   T13]  wb_workfn+0x431/0x10f0
[   98.816809][   T13]  ? __pfx_wb_workfn+0x10/0x10
[   98.816834][   T13]  ? rcu_is_watching+0x16/0xb0
[   98.816855][   T13]  ? trace_hrtimer_start+0x82/0x200
[   98.816887][   T13]  ? do_raw_spin_lock+0x12b/0x2f0
[   98.816921][   T13]  ? lock_acquire+0x115/0x350
[   98.816946][   T13]  ? rcu_is_watching+0x16/0xb0
[   98.816969][   T13]  ? process_scheduled_works+0x97a/0x1630
[   98.816994][   T13]  process_scheduled_works+0xc3d/0x1630
[   98.817047][   T13]  ? __pfx_process_scheduled_works+0x10/0x10
[   98.817077][   T13]  ? assign_work+0x3cf/0x5d0
[   98.817106][   T13]  worker_thread+0xa47/0xfb0
[   98.817156][   T13]  kthread+0x38b/0x480
[   98.817175][   T13]  ? __pfx_worker_thread+0x10/0x10
[   98.817198][   T13]  ? __pfx_kthread+0x10/0x10
[   98.817217][   T13]  ret_from_fork+0x514/0xb70
[   98.817238][   T13]  ? __pfx_ret_from_fork+0x10/0x10
[   98.817266][   T13]  ? __switch_to+0xc89/0x1420
[   98.817294][   T13]  ? __pfx_kthread+0x10/0x10
[   98.817318][   T13]  ret_from_fork_asm+0x1a/0x30
[   98.817361][   T13]  </TASK>
[   98.818254][   T13] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[   99.316694][ T5930] loop0: detected capacity change from 0 to 40427
[   99.320027][ T5930] F2FS-fs (loop0): Invalid log blocks per segment (1)
[   99.320047][ T5930] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[   99.320318][ T5930] F2FS-fs (loop0): Image doesn't support compression
[   99.320333][ T5930] F2FS-fs (loop0): build fault injection rate: 690
[   99.320345][ T5930] F2FS-fs (loop0): build fault injection type: 0x35f7
[   99.321218][ T5930] F2FS-fs (loop0): invalid crc value
[   99.415926][ T5930] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[   99.418354][ T5930] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0
[   99.418377][ T5930] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0
[   99.418399][ T5930] F2FS-fs (loop0): Start checkpoint disabled!
[   99.423484][ T5930] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0
[   99.425100][ T5930] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[   99.425122][ T5930] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6
[   99.444794][ T1015] kworker/u8:7: attempt to access beyond end of device
[   99.444794][ T1015] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[   99.444859][ T1015] CPU: 0 UID: 0 PID: 1015 Comm: kworker/u8:7 Not tainted syzkaller #0 PREEMPT(full) 
[   99.444880][ T1015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   99.444892][ T1015] Workqueue: writeback wb_workfn (flush-7:0)
[   99.444926][ T1015] Call Trace:
[   99.444933][ T1015]  <TASK>
[   99.444941][ T1015]  dump_stack_lvl+0xe8/0x150
[   99.444970][ T1015]  f2fs_stop_checkpoint+0x3f6/0x5d0
[   99.444998][ T1015]  f2fs_write_end_bio+0x1211/0x16e0
[   99.445027][ T1015]  ? blkg_put+0x22/0x240
[   99.445062][ T1015]  __submit_merged_bio+0x258/0x6a0
[   99.445084][ T1015]  ? rcu_is_watching+0x16/0xb0
[   99.445112][ T1015]  __submit_merged_write_cond+0x3c9/0x4e0
[   99.445143][ T1015]  ? __pfx___submit_merged_write_cond+0x10/0x10
[   99.445187][ T1015]  f2fs_write_data_pages+0x2a27/0x36f0
[   99.445248][ T1015]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   99.445286][ T1015]  ? __pfx_f2fs_available_free_memory+0x10/0x10
[   99.445353][ T1015]  ? __pfx_f2fs_balance_fs_bg+0x10/0x10
[   99.445393][ T1015]  ? __lock_acquire+0x6df/0x2e50
[   99.445427][ T1015]  ? __pfx_f2fs_inode_chksum_set+0x10/0x10
[   99.445446][ T1015]  ? f2fs_update_inode+0x146f/0x25c0
[   99.445465][ T1015]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[   99.445492][ T1015]  do_writepages+0x338/0x560
[   99.445523][ T1015]  ? reacquire_held_locks+0x117/0x1a0
[   99.445544][ T1015]  ? writeback_sb_inodes+0x450/0x1b00
[   99.445567][ T1015]  __writeback_single_inode+0x136/0x1220
[   99.445590][ T1015]  ? do_raw_spin_unlock+0xf5/0x200
[   99.445619][ T1015]  writeback_sb_inodes+0x9de/0x1b00
[   99.445636][ T1015]  ? __lock_acquire+0x6df/0x2e50
[   99.445668][ T1015]  ? lock_acquire+0x115/0x350
[   99.445693][ T1015]  ? __pfx_writeback_sb_inodes+0x10/0x10
[   99.445750][ T1015]  ? rcu_is_watching+0x16/0xb0
[   99.445772][ T1015]  ? queue_io+0x2d3/0x470
[   99.445793][ T1015]  wb_writeback+0x41c/0xad0
[   99.445823][ T1015]  ? queue_io+0x1f1/0x470
[   99.445845][ T1015]  ? __pfx_wb_writeback+0x10/0x10
[   99.445870][ T1015]  ? do_raw_spin_lock+0x12b/0x2f0
[   99.445910][ T1015]  wb_workfn+0x431/0x10f0
[   99.445952][ T1015]  ? __pfx_wb_workfn+0x10/0x10
[   99.445978][ T1015]  ? rcu_is_watching+0x16/0xb0
[   99.445999][ T1015]  ? trace_hrtimer_start+0x82/0x200
[   99.446032][ T1015]  ? do_raw_spin_lock+0x12b/0x2f0
[   99.446065][ T1015]  ? lock_acquire+0x115/0x350
[   99.446091][ T1015]  ? rcu_is_watching+0x16/0xb0
[   99.446114][ T1015]  ? process_scheduled_works+0x97a/0x1630
[   99.446139][ T1015]  process_scheduled_works+0xc3d/0x1630
[   99.446192][ T1015]  ? __pfx_process_scheduled_works+0x10/0x10
[   99.446223][ T1015]  ? assign_work+0x3cf/0x5d0
[   99.446251][ T1015]  worker_thread+0xa47/0xfb0
[   99.446289][ T1015]  ? __kthread_parkme+0x71/0x1f0
[   99.446331][ T1015]  kthread+0x38b/0x480
[   99.446349][ T1015]  ? __pfx_worker_thread+0x10/0x10
[   99.446372][ T1015]  ? __pfx_kthread+0x10/0x10
[   99.446391][ T1015]  ret_from_fork+0x514/0xb70
[   99.446412][ T1015]  ? __pfx_ret_from_fork+0x10/0x10
[   99.446440][ T1015]  ? __switch_to+0xc89/0x1420
[   99.446468][ T1015]  ? __pfx_kthread+0x10/0x10
[   99.446488][ T1015]  ret_from_fork_asm+0x1a/0x30
[   99.446530][ T1015]  </TASK>
[   99.447492][ T1015] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[   99.951805][ T5934] loop0: detected capacity change from 0 to 40427
[   99.958724][ T5934] F2FS-fs (loop0): Invalid log blocks per segment (1)
[   99.959189][ T5934] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[   99.959576][ T5934] F2FS-fs (loop0): Image doesn't support compression
[   99.959591][ T5934] F2FS-fs (loop0): build fault injection rate: 690
[   99.959604][ T5934] F2FS-fs (loop0): build fault injection type: 0x35f7
[   99.960350][ T5934] F2FS-fs (loop0): invalid crc value
[  100.043531][ T5934] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  100.045977][ T5934] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0
[  100.046000][ T5934] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0
[  100.046022][ T5934] F2FS-fs (loop0): Start checkpoint disabled!
[  100.053368][ T5934] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0
[  100.055179][ T5934] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  100.055201][ T5934] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6
[  100.080668][   T13] kworker/u8:1: attempt to access beyond end of device
[  100.080668][   T13] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  100.080744][   T13] CPU: 1 UID: 0 PID: 13 Comm: kworker/u8:1 Not tainted syzkaller #0 PREEMPT(full) 
[  100.080765][   T13] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  100.080778][   T13] Workqueue: writeback wb_workfn (flush-7:0)
[  100.080812][   T13] Call Trace:
[  100.080820][   T13]  <TASK>
[  100.080828][   T13]  dump_stack_lvl+0xe8/0x150
[  100.080857][   T13]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  100.080885][   T13]  f2fs_write_end_bio+0x1211/0x16e0
[  100.080914][   T13]  ? blkg_put+0x22/0x240
[  100.080950][   T13]  __submit_merged_bio+0x258/0x6a0
[  100.080970][   T13]  ? rcu_is_watching+0x16/0xb0
[  100.080998][   T13]  __submit_merged_write_cond+0x3c9/0x4e0
[  100.081028][   T13]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  100.081071][   T13]  f2fs_write_data_pages+0x2a27/0x36f0
[  100.081130][   T13]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  100.081167][   T13]  ? __pfx_f2fs_available_free_memory+0x10/0x10
[  100.081225][   T13]  ? __pfx_f2fs_balance_fs_bg+0x10/0x10
[  100.081265][   T13]  ? __lock_acquire+0x6df/0x2e50
[  100.081298][   T13]  ? __pfx_f2fs_inode_chksum_set+0x10/0x10
[  100.081318][   T13]  ? f2fs_update_inode+0x146f/0x25c0
[  100.081337][   T13]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  100.081364][   T13]  do_writepages+0x338/0x560
[  100.081395][   T13]  ? reacquire_held_locks+0x117/0x1a0
[  100.081417][   T13]  ? writeback_sb_inodes+0x450/0x1b00
[  100.081440][   T13]  __writeback_single_inode+0x136/0x1220
[  100.081461][   T13]  ? do_raw_spin_unlock+0xf5/0x200
[  100.081490][   T13]  writeback_sb_inodes+0x9de/0x1b00
[  100.081507][   T13]  ? __lock_acquire+0x6df/0x2e50
[  100.081540][   T13]  ? lock_acquire+0x115/0x350
[  100.081564][   T13]  ? __pfx_writeback_sb_inodes+0x10/0x10
[  100.081622][   T13]  ? rcu_is_watching+0x16/0xb0
[  100.081644][   T13]  ? queue_io+0x2d3/0x470
[  100.081664][   T13]  wb_writeback+0x41c/0xad0
[  100.081701][   T13]  ? queue_io+0x1f1/0x470
[  100.081724][   T13]  ? __pfx_wb_writeback+0x10/0x10
[  100.081750][   T13]  ? do_raw_spin_lock+0x12b/0x2f0
[  100.081789][   T13]  wb_workfn+0x431/0x10f0
[  100.081830][   T13]  ? __pfx_wb_workfn+0x10/0x10
[  100.081856][   T13]  ? rcu_is_watching+0x16/0xb0
[  100.081878][   T13]  ? trace_hrtimer_start+0x82/0x200
[  100.081910][   T13]  ? do_raw_spin_lock+0x12b/0x2f0
[  100.081943][   T13]  ? lock_acquire+0x115/0x350
[  100.081969][   T13]  ? rcu_is_watching+0x16/0xb0
[  100.081992][   T13]  ? process_scheduled_works+0x97a/0x1630
[  100.082016][   T13]  process_scheduled_works+0xc3d/0x1630
[  100.082070][   T13]  ? __pfx_process_scheduled_works+0x10/0x10
[  100.082100][   T13]  ? assign_work+0x3cf/0x5d0
[  100.082129][   T13]  worker_thread+0xa47/0xfb0
[  100.082179][   T13]  kthread+0x38b/0x480
[  100.082198][   T13]  ? __pfx_worker_thread+0x10/0x10
[  100.082220][   T13]  ? __pfx_kthread+0x10/0x10
[  100.082240][   T13]  ret_from_fork+0x514/0xb70
[  100.082261][   T13]  ? __pfx_ret_from_fork+0x10/0x10
[  100.082289][   T13]  ? __switch_to+0xc89/0x1420
[  100.082317][   T13]  ? __pfx_kthread+0x10/0x10
[  100.082337][   T13]  ret_from_fork_asm+0x1a/0x30
[  100.082380][   T13]  </TASK>
[  100.083398][   T13] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  100.562085][ T5938] loop0: detected capacity change from 0 to 40427
[  100.569934][ T5938] F2FS-fs (loop0): Invalid log blocks per segment (1)
[  100.569952][ T5938] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  100.571990][ T5938] F2FS-fs (loop0): Image doesn't support compression
[  100.572007][ T5938] F2FS-fs (loop0): build fault injection rate: 690
[  100.572020][ T5938] F2FS-fs (loop0): build fault injection type: 0x35f7
[  100.574284][ T5938] F2FS-fs (loop0): invalid crc value
[  100.662651][ T5938] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  100.665455][ T5938] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0
[  100.665479][ T5938] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0
[  100.665501][ T5938] F2FS-fs (loop0): Start checkpoint disabled!
[  100.668800][ T5938] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0
[  100.673632][ T5938] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  100.673655][ T5938] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6
[  100.698192][ T1015] kworker/u8:7: attempt to access beyond end of device
[  100.698192][ T1015] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  100.698260][ T1015] CPU: 0 UID: 0 PID: 1015 Comm: kworker/u8:7 Not tainted syzkaller #0 PREEMPT(full) 
[  100.698281][ T1015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  100.698293][ T1015] Workqueue: writeback wb_workfn (flush-7:0)
[  100.698329][ T1015] Call Trace:
[  100.698336][ T1015]  <TASK>
[  100.698344][ T1015]  dump_stack_lvl+0xe8/0x150
[  100.698373][ T1015]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  100.698402][ T1015]  f2fs_write_end_bio+0x1211/0x16e0
[  100.698432][ T1015]  ? blkg_put+0x22/0x240
[  100.698467][ T1015]  __submit_merged_bio+0x258/0x6a0
[  100.698489][ T1015]  ? rcu_is_watching+0x16/0xb0
[  100.698517][ T1015]  __submit_merged_write_cond+0x3c9/0x4e0
[  100.698547][ T1015]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  100.698595][ T1015]  f2fs_write_data_pages+0x2a27/0x36f0
[  100.698653][ T1015]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  100.698691][ T1015]  ? __pfx_f2fs_available_free_memory+0x10/0x10
[  100.698750][ T1015]  ? __pfx_f2fs_balance_fs_bg+0x10/0x10
[  100.698790][ T1015]  ? __lock_acquire+0x6df/0x2e50
[  100.698825][ T1015]  ? __pfx_f2fs_inode_chksum_set+0x10/0x10
[  100.698844][ T1015]  ? f2fs_update_inode+0x146f/0x25c0
[  100.698864][ T1015]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  100.698890][ T1015]  do_writepages+0x338/0x560
[  100.698922][ T1015]  ? reacquire_held_locks+0x117/0x1a0
[  100.698942][ T1015]  ? writeback_sb_inodes+0x450/0x1b00
[  100.698966][ T1015]  __writeback_single_inode+0x136/0x1220
[  100.698987][ T1015]  ? do_raw_spin_unlock+0xf5/0x200
[  100.699017][ T1015]  writeback_sb_inodes+0x9de/0x1b00
[  100.699033][ T1015]  ? __lock_acquire+0x6df/0x2e50
[  100.699066][ T1015]  ? lock_acquire+0x115/0x350
[  100.699090][ T1015]  ? __pfx_writeback_sb_inodes+0x10/0x10
[  100.699153][ T1015]  ? rcu_is_watching+0x16/0xb0
[  100.699176][ T1015]  ? queue_io+0x2d3/0x470
[  100.699197][ T1015]  wb_writeback+0x41c/0xad0
[  100.699227][ T1015]  ? queue_io+0x1f1/0x470
[  100.699250][ T1015]  ? __pfx_wb_writeback+0x10/0x10
[  100.699276][ T1015]  ? do_raw_spin_lock+0x12b/0x2f0
[  100.699317][ T1015]  wb_workfn+0x431/0x10f0
[  100.699358][ T1015]  ? __pfx_wb_workfn+0x10/0x10
[  100.699386][ T1015]  ? timerqueue_linked_add+0x287/0x2e0
[  100.699419][ T1015]  ? do_raw_spin_lock+0x12b/0x2f0
[  100.699452][ T1015]  ? lock_acquire+0x115/0x350
[  100.699479][ T1015]  ? rcu_is_watching+0x16/0xb0
[  100.699502][ T1015]  ? process_scheduled_works+0x97a/0x1630
[  100.699527][ T1015]  process_scheduled_works+0xc3d/0x1630
[  100.699581][ T1015]  ? __pfx_process_scheduled_works+0x10/0x10
[  100.699611][ T1015]  ? assign_work+0x3cf/0x5d0
[  100.699640][ T1015]  worker_thread+0xa47/0xfb0
[  100.699677][ T1015]  ? __kthread_parkme+0x71/0x1f0
[  100.699714][ T1015]  kthread+0x38b/0x480
[  100.699732][ T1015]  ? __pfx_worker_thread+0x10/0x10
[  100.699755][ T1015]  ? __pfx_kthread+0x10/0x10
[  100.699774][ T1015]  ret_from_fork+0x514/0xb70
[  100.699796][ T1015]  ? __pfx_ret_from_fork+0x10/0x10
[  100.699823][ T1015]  ? __switch_to+0xc89/0x1420
[  100.699851][ T1015]  ? __pfx_kthread+0x10/0x10
[  100.699871][ T1015]  ret_from_fork_asm+0x1a/0x30
[  100.699915][ T1015]  </TASK>
[  100.706704][ T1015] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  101.190602][ T5942] loop0: detected capacity change from 0 to 40427
[  101.192166][ T5942] F2FS-fs (loop0): Invalid log blocks per segment (1)
[  101.192186][ T5942] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  101.192426][ T5942] F2FS-fs (loop0): Image doesn't support compression
[  101.192441][ T5942] F2FS-fs (loop0): build fault injection rate: 690
[  101.192454][ T5942] F2FS-fs (loop0): build fault injection type: 0x35f7
[  101.193246][ T5942] F2FS-fs (loop0): invalid crc value
[  101.303380][ T5942] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
[  101.306502][ T5942] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0
[  101.306526][ T5942] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0
[  101.306549][ T5942] F2FS-fs (loop0): Start checkpoint disabled!
[  101.310137][ T5942] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0
[  101.321278][ T5942] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0
[  101.321302][ T5942] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6
[  101.343394][ T1015] kworker/u8:7: attempt to access beyond end of device
[  101.343394][ T1015] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427
[  101.343463][ T1015] CPU: 0 UID: 0 PID: 1015 Comm: kworker/u8:7 Not tainted syzkaller #0 PREEMPT(full) 
[  101.343484][ T1015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  101.343495][ T1015] Workqueue: writeback wb_workfn (flush-7:0)
[  101.343529][ T1015] Call Trace:
[  101.343537][ T1015]  <TASK>
[  101.343545][ T1015]  dump_stack_lvl+0xe8/0x150
[  101.343574][ T1015]  f2fs_stop_checkpoint+0x3f6/0x5d0
[  101.343602][ T1015]  f2fs_write_end_bio+0x1211/0x16e0
[  101.343630][ T1015]  ? blkg_put+0x22/0x240
[  101.343669][ T1015]  __submit_merged_bio+0x258/0x6a0
[  101.343690][ T1015]  ? rcu_is_watching+0x16/0xb0
[  101.343718][ T1015]  __submit_merged_write_cond+0x3c9/0x4e0
[  101.343749][ T1015]  ? __pfx___submit_merged_write_cond+0x10/0x10
[  101.343792][ T1015]  f2fs_write_data_pages+0x2a27/0x36f0
[  101.343851][ T1015]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  101.343888][ T1015]  ? __pfx_f2fs_available_free_memory+0x10/0x10
[  101.343948][ T1015]  ? __pfx_f2fs_balance_fs_bg+0x10/0x10
[  101.343988][ T1015]  ? __lock_acquire+0x6df/0x2e50
[  101.344022][ T1015]  ? __pfx_f2fs_inode_chksum_set+0x10/0x10
[  101.344042][ T1015]  ? f2fs_update_inode+0x146f/0x25c0
[  101.344061][ T1015]  ? __pfx_f2fs_write_data_pages+0x10/0x10
[  101.344087][ T1015]  do_writepages+0x338/0x560
[  101.344124][ T1015]  ? reacquire_held_locks+0x117/0x1a0
[  101.344146][ T1015]  ? writeback_sb_inodes+0x450/0x1b00
[  101.344170][ T1015]  __writeback_single_inode+0x136/0x1220
[  101.344191][ T1015]  ? do_raw_spin_unlock+0xf5/0x200
[  101.344220][ T1015]  writeback_sb_inodes+0x9de/0x1b00
[  101.344237][ T1015]  ? __lock_acquire+0x6df/0x2e50
[  101.344270][ T1015]  ? lock_acquire+0x115/0x350
[  101.344294][ T1015]  ? __pfx_writeback_sb_inodes+0x10/0x10
[  101.344352][ T1015]  ? rcu_is_watching+0x16/0xb0
[  101.344373][ T1015]  ? queue_io+0x2d3/0x470
[  101.344394][ T1015]  wb_writeback+0x41c/0xad0
[  101.344424][ T1015]  ? queue_io+0x1f1/0x470
[  101.344447][ T1015]  ? __pfx_wb_writeback+0x10/0x10
[  101.344473][ T1015]  ? do_raw_spin_lock+0x12b/0x2f0
[  101.344512][ T1015]  wb_workfn+0x431/0x10f0
[  101.344553][ T1015]  ? __pfx_wb_workfn+0x10/0x10
[  101.344579][ T1015]  ? rcu_is_watching+0x16/0xb0
[  101.344600][ T1015]  ? trace_hrtimer_start+0x82/0x200
[  101.344632][ T1015]  ? do_raw_spin_lock+0x12b/0x2f0
[  101.344666][ T1015]  ? lock_acquire+0x115/0x350
[  101.344692][ T1015]  ? rcu_is_watching+0x16/0xb0
[  101.344715][ T1015]  ? process_scheduled_works+0x97a/0x1630
[  101.344740][ T1015]  process_scheduled_works+0xc3d/0x1630
[  101.344793][ T1015]  ? __pfx_process_scheduled_works+0x10/0x10
[  101.344823][ T1015]  ? assign_work+0x3cf/0x5d0
[  101.344852][ T1015]  worker_thread+0xa47/0xfb0
[  101.344890][ T1015]  ? __kthread_parkme+0x71/0x1f0
[  101.344926][ T1015]  kthread+0x38b/0x480
[  101.344945][ T1015]  ? __pfx_worker_thread+0x10/0x10
[  101.344968][ T1015]  ? __pfx_kthread+0x10/0x10
[  101.344988][ T1015]  ret_from_fork+0x514/0xb70
[  101.345009][ T1015]  ? __pfx_ret_from_fork+0x10/0x10
[  101.345037][ T1015]  ? __switch_to+0xc89/0x1420
[  101.345065][ T1015]  ? __pfx_kthread+0x10/0x10
[  101.345085][ T1015]  ret_from_fork_asm+0x1a/0x30
[  101.345133][ T1015]  </TASK>
[  101.345162][ T1015] F2FS-fs (loop0): Stopped filesystem due to reason: 3
[  101.824501][ T5946] loop0: detected capacity change from 0 to 40427
[  101.834518][ T5946] F2FS-fs (loop0): Invalid log blocks per segment (1)
[  101.834551][ T5946] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
[  101.849100][ T5946] F2FS-fs (loop0): Image doesn't support compression
[  101.849121][ T5946] F2FS-fs (loop0): build fault injection rate: 690
[  101.849134][ T5946] F2FS-fs (loop0): build fault injection type: 0x35f7
[  101.859514][ T5946] F2FS-fs (loop0): invalid crc value