no interfaces have a carrier [ 51.826993][ T5276] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.860858][ T5276] eql: remember to turn off Van-Jacobson compression on your slave devices Starting crond: OK Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.186' (ED25519) to the list of known hosts. 2026/08/15 01:58:33 parsed 1 programs 2026/08/15 01:58:33 serving rpc on tcp://34059 syzkaller login: [ 82.831915][ T5625] cgroup: Unknown subsys name 'net' [ 82.943981][ T5625] cgroup: Unknown subsys name 'cpuset' [ 82.953055][ T5625] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 84.685541][ T5625] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 86.869943][ T1219] cfg80211: failed to load regulatory.db [ 87.912976][ T5644] 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. [ 88.047646][ T5650] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 88.050421][ T5650] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 88.050928][ T5650] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 88.052133][ T5650] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 88.052722][ T5650] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 89.192478][ T5667] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.193174][ T5667] bridge0: port 1(bridge_slave_0) entered disabled state [ 89.193318][ T5667] bridge_slave_0: entered allmulticast mode [ 89.195112][ T5667] bridge_slave_0: entered promiscuous mode [ 89.200733][ T5667] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.201000][ T5667] bridge0: port 2(bridge_slave_1) entered disabled state [ 89.201156][ T5667] bridge_slave_1: entered allmulticast mode [ 89.203367][ T5667] bridge_slave_1: entered promiscuous mode [ 89.246057][ T5667] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 89.249948][ T5667] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 89.276735][ T5667] team0: Port device team_slave_0 added [ 89.280815][ T5667] team0: Port device team_slave_1 added [ 89.303688][ T5667] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 89.303718][ T5667] 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. [ 89.304508][ T5667] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 89.307495][ T5667] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 89.307508][ T5667] 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. [ 89.307528][ T5667] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 89.362633][ T5667] hsr_slave_0: entered promiscuous mode [ 89.363742][ T5667] hsr_slave_1: entered promiscuous mode [ 89.523736][ T5667] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 89.535848][ T5667] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 89.541412][ T5667] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 89.548647][ T5667] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 89.550760][ T5667] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 89.563563][ T5667] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 89.565566][ T5667] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 89.570875][ T5667] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 89.605225][ T5667] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.605364][ T5667] bridge0: port 2(bridge_slave_1) entered forwarding state [ 89.606057][ T5667] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.606380][ T5667] bridge0: port 1(bridge_slave_0) entered forwarding state [ 89.676312][ T5667] 8021q: adding VLAN 0 to HW filter on device bond0 [ 89.692543][ T49] bridge0: port 1(bridge_slave_0) entered disabled state [ 89.701704][ T49] bridge0: port 2(bridge_slave_1) entered disabled state [ 89.720424][ T5667] 8021q: adding VLAN 0 to HW filter on device team0 [ 89.729257][ T34] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.729773][ T34] bridge0: port 1(bridge_slave_0) entered forwarding state [ 89.737153][ T49] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.737339][ T49] bridge0: port 2(bridge_slave_1) entered forwarding state [ 90.062857][ T5667] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 90.114491][ T5667] veth0_vlan: entered promiscuous mode [ 90.125197][ T5667] veth1_vlan: entered promiscuous mode [ 90.155299][ T5667] veth0_macvtap: entered promiscuous mode [ 90.160297][ T5667] veth1_macvtap: entered promiscuous mode [ 90.175758][ T5667] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 90.180589][ T5667] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 90.250200][ T34] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.279996][ T34] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.292270][ T1150] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.293119][ T1150] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.400799][ T34] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 90.504551][ T34] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 90.608939][ T34] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 90.711568][ T34] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 91.033156][ T59] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 91.042318][ T59] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 91.073853][ T1150] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 91.074631][ T1150] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 92.793875][ T34] bridge_slave_1: left allmulticast mode [ 92.800150][ T34] bridge_slave_1: left promiscuous mode [ 92.807742][ T34] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.822738][ T34] bridge_slave_0: left allmulticast mode [ 92.829347][ T34] bridge_slave_0: left promiscuous mode [ 92.836445][ T34] bridge0: port 1(bridge_slave_0) entered disabled state [ 93.059264][ T34] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 93.085188][ T34] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 93.097986][ T34] bond0 (unregistering): Released all slaves 2026/08/15 01:58:46 executed programs: 0 [ 93.233173][ T34] hsr_slave_0: left promiscuous mode [ 93.241901][ T34] hsr_slave_1: left promiscuous mode [ 93.248571][ T34] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 93.261006][ T34] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 93.270298][ T34] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 93.277820][ T34] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 93.300486][ T4931] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 93.310865][ T34] veth1_macvtap: left promiscuous mode [ 93.316878][ T34] veth0_macvtap: left promiscuous mode [ 93.317075][ T4931] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 93.323250][ T4931] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 93.338288][ T34] veth1_vlan: left promiscuous mode [ 93.338432][ T34] veth0_vlan: left promiscuous mode [ 93.355070][ T4931] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 93.360564][ T4931] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 93.772127][ T34] team0 (unregistering): Port device team_slave_1 removed [ 93.794025][ T34] team0 (unregistering): Port device team_slave_0 removed [ 93.930720][ T5276] 8021q: adding VLAN 0 to HW filter on device eth1 [ 94.824827][ T5276] 8021q: adding VLAN 0 to HW filter on device eth2 [ 95.402255][ T5749] bridge0: port 1(bridge_slave_0) entered blocking state [ 95.409901][ T5749] bridge0: port 1(bridge_slave_0) entered disabled state [ 95.417232][ T5749] bridge_slave_0: entered allmulticast mode [ 95.420578][ T4931] Bluetooth: hci0: command tx timeout [ 95.432807][ T5749] bridge_slave_0: entered promiscuous mode [ 95.503964][ T5749] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.509720][ T5749] bridge0: port 2(bridge_slave_1) entered disabled state [ 95.509872][ T5749] bridge_slave_1: entered allmulticast mode [ 95.511929][ T5749] bridge_slave_1: entered promiscuous mode [ 95.610157][ T5749] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 95.616726][ T5749] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 95.672732][ T5749] team0: Port device team_slave_0 added [ 95.682047][ T5749] team0: Port device team_slave_1 added [ 95.696924][ T5276] 8021q: adding VLAN 0 to HW filter on device eth3 [ 95.730102][ T5749] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 95.730349][ T5749] 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. [ 95.730373][ T5749] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 95.734394][ T5749] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 95.734408][ T5749] 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. [ 95.734429][ T5749] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 95.850032][ T5749] hsr_slave_0: entered promiscuous mode [ 95.857258][ T5749] hsr_slave_1: entered promiscuous mode [ 96.499912][ T5749] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 96.531477][ T5749] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 96.532423][ T5749] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 96.559698][ T5749] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 96.572441][ T5749] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 96.587865][ T5749] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 96.588762][ T5749] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 96.614458][ T5749] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 96.815150][ T5749] 8021q: adding VLAN 0 to HW filter on device bond0 [ 96.846780][ T5749] 8021q: adding VLAN 0 to HW filter on device team0 [ 96.862589][ T34] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.862747][ T34] bridge0: port 1(bridge_slave_0) entered forwarding state [ 96.893635][ T34] bridge0: port 2(bridge_slave_1) entered blocking state [ 96.893780][ T34] bridge0: port 2(bridge_slave_1) entered forwarding state [ 97.500372][ T4931] Bluetooth: hci0: command tx timeout [ 97.509853][ T5749] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 97.568424][ T5749] veth0_vlan: entered promiscuous mode [ 97.581492][ T5749] veth1_vlan: entered promiscuous mode [ 97.626432][ T5749] veth0_macvtap: entered promiscuous mode [ 97.631809][ T5749] veth1_macvtap: entered promiscuous mode [ 97.653553][ T5749] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 97.665311][ T5749] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 97.731676][ T49] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.731753][ T49] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.731804][ T49] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.731841][ T49] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.813929][ T49] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 97.813986][ T49] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 97.876054][ T34] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 97.876112][ T34] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 98.332246][ T5868] loop0: detected capacity change from 0 to 40427 [ 98.345000][ T5868] ======================================================= [ 98.345000][ T5868] WARNING: The mand mount option has been deprecated and [ 98.345000][ T5868] and is ignored by this kernel. Remove the mand [ 98.345000][ T5868] option from the mount to silence this warning. [ 98.345000][ T5868] ======================================================= [ 98.419318][ T5868] F2FS-fs (loop0): Invalid log blocks per segment (1) [ 98.419363][ T5868] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock [ 98.437047][ T5868] F2FS-fs (loop0): Image doesn't support compression [ 98.449491][ T5868] F2FS-fs (loop0): build fault injection rate: 690 [ 98.457491][ T5868] F2FS-fs (loop0): build fault injection type: 0x35f7 [ 98.467672][ T5868] F2FS-fs (loop0): invalid crc value [ 98.613229][ T5868] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0 [ 98.615947][ T5868] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0 [ 98.615972][ T5868] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0 [ 98.616488][ T5868] F2FS-fs (loop0): Start checkpoint disabled! [ 98.625597][ T5868] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0 [ 98.633600][ T5868] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0 [ 98.635751][ T5868] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6 [ 98.680487][ T1150] kworker/u8:8: attempt to access beyond end of device [ 98.680487][ T1150] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427 [ 98.681813][ ** replaying previous printk message ** [ 98.681813][ T1150] CPU: 1 UID: 0 PID: 1150 Comm: kworker/u8:8 Not tainted syzkaller #0 PREEMPT(full) [ 98.681838][ T1150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 98.681849][ T1150] Workqueue: writeback wb_workfn (flush-7:0) [ 98.681883][ T1150] Call Trace: [ 98.681892][ T1150] [ 98.681900][ T1150] dump_stack_lvl+0xe8/0x150 [ 98.681928][ T1150] f2fs_stop_checkpoint+0x3f6/0x5d0 [ 98.681956][ T1150] f2fs_write_end_bio+0x1211/0x16e0 [ 98.681983][ T1150] ? blkg_put+0x22/0x240 [ 98.682020][ T1150] __submit_merged_bio+0x258/0x6a0 [ 98.682040][ T1150] ? rcu_is_watching+0x16/0xb0 [ 98.682067][ T1150] __submit_merged_write_cond+0x3c9/0x4e0 [ 98.682099][ T1150] ? __pfx___submit_merged_write_cond+0x10/0x10 [ 98.682145][ T1150] f2fs_write_data_pages+0x2a27/0x36f0 [ 98.682207][ T1150] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 98.682245][ T1150] ? __pfx_f2fs_available_free_memory+0x10/0x10 [ 98.682307][ T1150] ? __pfx_f2fs_balance_fs_bg+0x10/0x10 [ 98.682348][ T1150] ? __lock_acquire+0x6df/0x2e50 [ 98.682385][ T1150] ? rcu_read_lock_sched_held+0x33/0x70 [ 98.682406][ T1150] ? attach_entity_load_avg+0x55f/0x830 [ 98.682430][ T1150] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 98.682455][ T1150] do_writepages+0x338/0x560 [ 98.682487][ T1150] ? reacquire_held_locks+0x117/0x1a0 [ 98.682507][ T1150] ? writeback_sb_inodes+0x450/0x1b00 [ 98.682530][ T1150] __writeback_single_inode+0x136/0x1220 [ 98.682551][ T1150] ? do_raw_spin_unlock+0xf5/0x200 [ 98.682580][ T1150] writeback_sb_inodes+0x9de/0x1b00 [ 98.682596][ T1150] ? __lock_acquire+0x6df/0x2e50 [ 98.682652][ T1150] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 98.682716][ T1150] ? rcu_is_watching+0x16/0xb0 [ 98.682737][ T1150] ? queue_io+0x2d3/0x470 [ 98.682758][ T1150] wb_writeback+0x41c/0xad0 [ 98.682787][ T1150] ? queue_io+0x201/0x470 [ 98.682811][ T1150] ? __pfx_wb_writeback+0x10/0x10 [ 98.682834][ T1150] ? do_raw_spin_lock+0x12b/0x2f0 [ 98.682874][ T1150] wb_workfn+0x431/0x10f0 [ 98.682917][ T1150] ? __pfx_wb_workfn+0x10/0x10 [ 98.682943][ T1150] ? irqentry_exit+0x218/0x910 [ 98.682963][ T1150] ? lockdep_hardirqs_on+0x7b/0x110 [ 98.682989][ T1150] ? do_raw_spin_lock+0x12b/0x2f0 [ 98.683022][ T1150] ? lock_acquire+0x115/0x350 [ 98.683050][ T1150] ? rcu_is_watching+0x16/0xb0 [ 98.683073][ T1150] ? process_scheduled_works+0x97a/0x1630 [ 98.683097][ T1150] process_scheduled_works+0xc3d/0x1630 [ 98.683154][ T1150] ? __pfx_process_scheduled_works+0x10/0x10 [ 98.683184][ T1150] ? assign_work+0x3cf/0x5d0 [ 98.683213][ T1150] worker_thread+0xa47/0xfb0 [ 98.683266][ T1150] kthread+0x38b/0x480 [ 98.683285][ T1150] ? __pfx_worker_thread+0x10/0x10 [ 98.683305][ T1150] ? __pfx_kthread+0x10/0x10 [ 98.683324][ T1150] ret_from_fork+0x514/0xb70 [ 98.683346][ T1150] ? __pfx_ret_from_fork+0x10/0x10 [ 98.683372][ T1150] ? __switch_to+0xc89/0x1420 [ 98.683399][ T1150] ? __pfx_kthread+0x10/0x10 [ 98.683419][ T1150] ret_from_fork_asm+0x1a/0x30 [ 98.683463][ T1150] [ 98.687152][ T1150] F2FS-fs (loop0): Stopped filesystem due to reason: 3 [ 98.695969][ T5749] [ 99.011284][ T5749] ============================= [ 99.016156][ T5749] WARNING: suspicious RCU usage [ 99.021204][ T5749] syzkaller #0 Not tainted [ 99.025678][ T5749] ----------------------------- [ 99.030607][ T5749] ./include/linux/radix-tree.h:179 suspicious rcu_dereference_check() usage! [ 99.039899][ T5749] [ 99.039899][ T5749] other info that might help us debug this: [ 99.039899][ T5749] [ 99.050245][ T5749] [ 99.050245][ T5749] rcu_scheduler_active = 2, debug_locks = 1 [ 99.058518][ T5749] locks held by syz-executor/5749: 2, last CPU#1: [ 99.065091][ T5749] #0: ffff8880794960e8 (&type->s_umount_key#56){+.+.}-{4:4}, at: deactivate_super+0xac/0xe0 [ 99.075410][ T5749] #1: ffff88802a4d48c8 (&im->ino_lock){+.+.}-{3:3}, at: f2fs_remove_ino_entry+0x18d/0x3f0 [ 99.085664][ T5749] [ 99.085664][ T5749] stack backtrace: [ 99.091709][ T5749] CPU: 1 UID: 0 PID: 5749 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) [ 99.101185][ T5749] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 99.111252][ T5749] Call Trace: [ 99.114565][ T5749] [ 99.117610][ T5749] dump_stack_lvl+0xe8/0x150 [ 99.122331][ T5749] lockdep_rcu_suspicious+0x140/0x1d0 [ 99.127734][ T5749] f2fs_remove_ino_entry+0x3ae/0x3f0 [ 99.133049][ T5749] f2fs_evict_inode+0x83d/0x21f0 [ 99.138044][ T5749] ? add_lock_to_list+0xc7/0x100 [ 99.143146][ T5749] ? __pfx_f2fs_evict_inode+0x10/0x10 [ 99.148536][ T5749] ? do_raw_spin_lock+0x12b/0x2f0 [ 99.153678][ T5749] ? do_raw_spin_unlock+0xf5/0x200 [ 99.158843][ T5749] ? __pfx_f2fs_evict_inode+0x10/0x10 2026/08/15 01:58:52 executed programs: 3 [ 99.164243][ T5749] evict+0x624/0xb50 [ 99.168177][ T5749] ? __pfx_evict+0x10/0x10 [ 99.172612][ T5749] ? do_raw_spin_unlock+0xf5/0x200 [ 99.177772][ T5749] ? _raw_spin_unlock+0x28/0x50 [ 99.182753][ T5749] ? iput+0xb84/0xf00 [ 99.186868][ T5749] f2fs_evict_inode+0x20f/0x21f0 [ 99.191842][ T5749] ? inode_wait_for_writeback+0x16d/0x3b0 [ 99.197642][ T5749] ? __pfx_f2fs_evict_inode+0x10/0x10 [ 99.203031][ T5749] ? do_raw_spin_lock+0x12b/0x2f0 [ 99.208097][ T5749] ? do_raw_spin_unlock+0xf5/0x200 [ 99.213251][ T5749] ? __pfx_f2fs_evict_inode+0x10/0x10 [ 99.218652][ T5749] evict+0x624/0xb50 [ 99.222585][ T5749] ? __pfx_evict+0x10/0x10 [ 99.227015][ T5749] ? do_raw_spin_lock+0x12b/0x2f0 [ 99.232161][ T5749] evict_inodes+0x7e3/0x870 [ 99.236698][ T5749] ? __pfx_cgroup_writeback_umount+0x10/0x10 [ 99.242831][ T5749] ? __pfx_evict_inodes+0x10/0x10 [ 99.247891][ T5749] ? sync_filesystem+0x1f9/0x240 [ 99.252856][ T5749] generic_shutdown_super+0xaa/0x2d0 [ 99.258189][ T5749] kill_block_super+0x44/0xa0 [ 99.262906][ T5749] kill_f2fs_super+0x3b3/0x700 [ 99.267732][ T5749] ? __pfx_kill_f2fs_super+0x10/0x10 [ 99.273064][ T5749] ? call_rcu+0x64d/0x8b0 [ 99.277417][ T5749] ? lockdep_hardirqs_on+0x7b/0x110 [ 99.282672][ T5749] deactivate_locked_super+0xbc/0x110 [ 99.288090][ T5749] cleanup_mnt+0x3d3/0x460 [ 99.292554][ T5749] task_work_run+0x1d9/0x270 [ 99.297172][ T5749] ? __pfx_task_work_run+0x10/0x10 [ 99.302301][ T5749] exit_to_user_mode_loop+0x204/0x770 [ 99.307727][ T5749] ? rcu_is_watching+0x16/0xb0 [ 99.312528][ T5749] do_syscall_64+0x328/0x520 [ 99.317145][ T5749] ? trace_irq_disable+0x3b/0x140 [ 99.322186][ T5749] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 99.328276][ T5749] ? clear_bhb_loop+0x70/0xc0 [ 99.332976][ T5749] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 99.338892][ T5749] RIP: 0033:0x7f3b28b9f317 [ 99.343437][ T5749] 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 [ 99.363265][ T5749] RSP: 002b:00007ffd40d566b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 99.371791][ T5749] RAX: 0000000000000000 RBX: 00007f3b28c34474 RCX: 00007f3b28b9f317 [ 99.379791][ T5749] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd40d56770 [ 99.387801][ T5749] RBP: 00007ffd40d56770 R08: 00007ffd40d57770 R09: 00000000ffffffff [ 99.395804][ T5749] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd40d57800 [ 99.403812][ T5749] R13: 00007f3b28c34474 R14: 000000000001812f R15: 00007ffd40d57840 [ 99.412157][ T5749] [ 99.580462][ T4931] Bluetooth: hci0: command tx timeout [ 99.998110][ T5907] loop0: detected capacity change from 0 to 40427 [ 100.006008][ T5907] F2FS-fs (loop0): Invalid log blocks per segment (1) [ 100.013047][ T5907] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock [ 100.023476][ T5907] F2FS-fs (loop0): Image doesn't support compression [ 100.030306][ T5907] F2FS-fs (loop0): build fault injection rate: 690 [ 100.037041][ T5907] F2FS-fs (loop0): build fault injection type: 0x35f7 [ 100.045419][ T5907] F2FS-fs (loop0): invalid crc value [ 100.132357][ T5907] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0 [ 100.134630][ T5907] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0 [ 100.134655][ T5907] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0 [ 100.134675][ T5907] F2FS-fs (loop0): Start checkpoint disabled! [ 100.138770][ T5907] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0 [ 100.141219][ T5907] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0 [ 100.141241][ T5907] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6 [ 100.165867][ T34] kworker/u8:2: attempt to access beyond end of device [ 100.165867][ T34] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427 [ 100.165950][ T34] CPU: 1 UID: 0 PID: 34 Comm: kworker/u8:2 Not tainted syzkaller #0 PREEMPT(full) [ 100.165972][ T34] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 100.165984][ T34] Workqueue: writeback wb_workfn (flush-7:0) [ 100.166027][ T34] Call Trace: [ 100.166033][ T34] [ 100.166040][ T34] dump_stack_lvl+0xe8/0x150 [ 100.166070][ T34] f2fs_stop_checkpoint+0x3f6/0x5d0 [ 100.166098][ T34] f2fs_write_end_bio+0x1211/0x16e0 [ 100.166127][ T34] ? blkg_put+0x22/0x240 [ 100.166176][ T34] __submit_merged_bio+0x258/0x6a0 [ 100.166198][ T34] ? rcu_is_watching+0x16/0xb0 [ 100.166227][ T34] __submit_merged_write_cond+0x3c9/0x4e0 [ 100.166261][ T34] ? __pfx___submit_merged_write_cond+0x10/0x10 [ 100.166309][ T34] f2fs_write_data_pages+0x2a27/0x36f0 [ 100.166374][ T34] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 100.166414][ T34] ? __pfx_f2fs_available_free_memory+0x10/0x10 [ 100.166472][ T34] ? __pfx_f2fs_balance_fs_bg+0x10/0x10 [ 100.166515][ T34] ? __lock_acquire+0x6df/0x2e50 [ 100.166549][ T34] ? __pfx_f2fs_inode_chksum_set+0x10/0x10 [ 100.166570][ T34] ? f2fs_update_inode+0x146f/0x25c0 [ 100.166590][ T34] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 100.166615][ T34] do_writepages+0x338/0x560 [ 100.166646][ T34] ? reacquire_held_locks+0x117/0x1a0 [ 100.166668][ T34] ? writeback_sb_inodes+0x450/0x1b00 [ 100.166693][ T34] __writeback_single_inode+0x136/0x1220 [ 100.166717][ T34] ? do_raw_spin_unlock+0xf5/0x200 [ 100.166748][ T34] writeback_sb_inodes+0x9de/0x1b00 [ 100.166766][ T34] ? __lock_acquire+0x6df/0x2e50 [ 100.166800][ T34] ? lock_acquire+0x115/0x350 [ 100.166825][ T34] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 100.166884][ T34] ? rcu_is_watching+0x16/0xb0 [ 100.166906][ T34] ? queue_io+0x2d3/0x470 [ 100.166928][ T34] wb_writeback+0x41c/0xad0 [ 100.166956][ T34] ? queue_io+0x201/0x470 [ 100.166979][ T34] ? __pfx_wb_writeback+0x10/0x10 [ 100.167004][ T34] ? do_raw_spin_lock+0x12b/0x2f0 [ 100.167045][ T34] wb_workfn+0x431/0x10f0 [ 100.167090][ T34] ? __pfx_wb_workfn+0x10/0x10 [ 100.167117][ T34] ? rcu_is_watching+0x16/0xb0 [ 100.167213][ T34] ? trace_hrtimer_start+0x82/0x200 [ 100.167245][ T34] ? do_raw_spin_lock+0x12b/0x2f0 [ 100.167277][ T34] ? lock_acquire+0x115/0x350 [ 100.167303][ T34] ? rcu_is_watching+0x16/0xb0 [ 100.167325][ T34] ? process_scheduled_works+0x97a/0x1630 [ 100.167349][ T34] process_scheduled_works+0xc3d/0x1630 [ 100.167402][ T34] ? __pfx_process_scheduled_works+0x10/0x10 [ 100.167431][ T34] ? assign_work+0x3cf/0x5d0 [ 100.167458][ T34] worker_thread+0xa47/0xfb0 [ 100.167508][ T34] kthread+0x38b/0x480 [ 100.167526][ T34] ? __pfx_worker_thread+0x10/0x10 [ 100.167546][ T34] ? __pfx_kthread+0x10/0x10 [ 100.167565][ T34] ret_from_fork+0x514/0xb70 [ 100.167586][ T34] ? __pfx_ret_from_fork+0x10/0x10 [ 100.167612][ T34] ? __switch_to+0xc89/0x1420 [ 100.167639][ T34] ? __pfx_kthread+0x10/0x10 [ 100.167656][ T34] ret_from_fork_asm+0x1a/0x30 [ 100.167698][ T34] [ 100.178229][ T34] F2FS-fs (loop0): Stopped filesystem due to reason: 3 [ 100.701735][ T5911] loop0: detected capacity change from 0 to 40427 [ 100.711958][ T5911] F2FS-fs (loop0): Invalid log blocks per segment (1) [ 100.711997][ T5911] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock [ 100.712722][ T5911] F2FS-fs (loop0): Image doesn't support compression [ 100.712934][ T5911] F2FS-fs (loop0): build fault injection rate: 690 [ 100.712948][ T5911] F2FS-fs (loop0): build fault injection type: 0x35f7 [ 100.713948][ T5911] F2FS-fs (loop0): invalid crc value [ 100.812648][ T5911] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0 [ 100.815486][ T5911] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0 [ 100.815513][ T5911] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0 [ 100.815534][ T5911] F2FS-fs (loop0): Start checkpoint disabled! [ 100.818885][ T5911] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0 [ 100.821499][ T5911] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0 [ 100.821527][ T5911] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6 [ 100.843264][ T34] kworker/u8:2: attempt to access beyond end of device [ 100.843264][ T34] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427 [ 100.843343][ T34] CPU: 0 UID: 0 PID: 34 Comm: kworker/u8:2 Not tainted syzkaller #0 PREEMPT(full) [ 100.843364][ T34] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 100.843375][ T34] Workqueue: writeback wb_workfn (flush-7:0) [ 100.843410][ T34] Call Trace: [ 100.843418][ T34] [ 100.843426][ T34] dump_stack_lvl+0xe8/0x150 [ 100.843455][ T34] f2fs_stop_checkpoint+0x3f6/0x5d0 [ 100.843483][ T34] f2fs_write_end_bio+0x1211/0x16e0 [ 100.843510][ T34] ? blkg_put+0x22/0x240 [ 100.843547][ T34] __submit_merged_bio+0x258/0x6a0 [ 100.843566][ T34] ? rcu_is_watching+0x16/0xb0 [ 100.843594][ T34] __submit_merged_write_cond+0x3c9/0x4e0 [ 100.843624][ T34] ? __pfx___submit_merged_write_cond+0x10/0x10 [ 100.843681][ T34] f2fs_write_data_pages+0x2a27/0x36f0 [ 100.843743][ T34] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 100.843781][ T34] ? __pfx_f2fs_available_free_memory+0x10/0x10 [ 100.843843][ T34] ? __pfx_f2fs_balance_fs_bg+0x10/0x10 [ 100.843883][ T34] ? __lock_acquire+0x6df/0x2e50 [ 100.843919][ T34] ? __pfx_f2fs_inode_chksum_set+0x10/0x10 [ 100.843938][ T34] ? f2fs_update_inode+0x146f/0x25c0 [ 100.843957][ T34] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 100.843981][ T34] do_writepages+0x338/0x560 [ 100.844013][ T34] ? reacquire_held_locks+0x117/0x1a0 [ 100.844033][ T34] ? writeback_sb_inodes+0x450/0x1b00 [ 100.844057][ T34] __writeback_single_inode+0x136/0x1220 [ 100.844078][ T34] ? do_raw_spin_unlock+0xf5/0x200 [ 100.844107][ T34] writeback_sb_inodes+0x9de/0x1b00 [ 100.844127][ T34] ? __lock_acquire+0x6df/0x2e50 [ 100.844161][ T34] ? lock_acquire+0x115/0x350 [ 100.844186][ T34] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 100.844250][ T34] ? rcu_is_watching+0x16/0xb0 [ 100.844270][ T34] ? queue_io+0x2d3/0x470 [ 100.844292][ T34] wb_writeback+0x41c/0xad0 [ 100.844321][ T34] ? queue_io+0x201/0x470 [ 100.844344][ T34] ? __pfx_wb_writeback+0x10/0x10 [ 100.844367][ T34] ? do_raw_spin_lock+0x12b/0x2f0 [ 100.844408][ T34] wb_workfn+0x431/0x10f0 [ 100.844451][ T34] ? __pfx_wb_workfn+0x10/0x10 [ 100.844476][ T34] ? rcu_is_watching+0x16/0xb0 [ 100.844497][ T34] ? trace_hrtimer_start+0x82/0x200 [ 100.844528][ T34] ? do_raw_spin_lock+0x12b/0x2f0 [ 100.844561][ T34] ? lock_acquire+0x115/0x350 [ 100.844588][ T34] ? rcu_is_watching+0x16/0xb0 [ 100.844611][ T34] ? process_scheduled_works+0x97a/0x1630 [ 100.844634][ T34] process_scheduled_works+0xc3d/0x1630 [ 100.844699][ T34] ? __pfx_process_scheduled_works+0x10/0x10 [ 100.844729][ T34] ? assign_work+0x3cf/0x5d0 [ 100.844758][ T34] worker_thread+0xa47/0xfb0 [ 100.844812][ T34] kthread+0x38b/0x480 [ 100.844831][ T34] ? __pfx_worker_thread+0x10/0x10 [ 100.844851][ T34] ? __pfx_kthread+0x10/0x10 [ 100.844871][ T34] ret_from_fork+0x514/0xb70 [ 100.844893][ T34] ? __pfx_ret_from_fork+0x10/0x10 [ 100.844919][ T34] ? __switch_to+0xc89/0x1420 [ 100.844946][ T34] ? __pfx_kthread+0x10/0x10 [ 100.844966][ T34] ret_from_fork_asm+0x1a/0x30 [ 100.845010][ T34] [ 100.845574][ T34] F2FS-fs (loop0): Stopped filesystem due to reason: 3 [ 100.856119][ T5683] loop0: lost filesystem error report for type 5 error -108 [ 101.368495][ T5915] loop0: detected capacity change from 0 to 40427 [ 101.378958][ T5915] F2FS-fs (loop0): Invalid log blocks per segment (1) [ 101.378980][ T5915] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock [ 101.379216][ T5915] F2FS-fs (loop0): Image doesn't support compression [ 101.379230][ T5915] F2FS-fs (loop0): build fault injection rate: 690 [ 101.379242][ T5915] F2FS-fs (loop0): build fault injection type: 0x35f7 [ 101.380664][ T5915] F2FS-fs (loop0): invalid crc value [ 101.471825][ T5915] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0 [ 101.474275][ T5915] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0 [ 101.474301][ T5915] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0 [ 101.474321][ T5915] F2FS-fs (loop0): Start checkpoint disabled! [ 101.477336][ T5915] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0 [ 101.478346][ T5915] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0 [ 101.478366][ T5915] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6 [ 101.502298][ T34] kworker/u8:2: attempt to access beyond end of device [ 101.502298][ T34] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427 [ 101.502368][ T34] CPU: 0 UID: 0 PID: 34 Comm: kworker/u8:2 Not tainted syzkaller #0 PREEMPT(full) [ 101.502388][ T34] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 101.502399][ T34] Workqueue: writeback wb_workfn (flush-7:0) [ 101.502433][ T34] Call Trace: [ 101.502440][ T34] [ 101.502448][ T34] dump_stack_lvl+0xe8/0x150 [ 101.502476][ T34] f2fs_stop_checkpoint+0x3f6/0x5d0 [ 101.502507][ T34] f2fs_write_end_bio+0x1211/0x16e0 [ 101.502533][ T34] ? blkg_put+0x22/0x240 [ 101.502568][ T34] __submit_merged_bio+0x258/0x6a0 [ 101.502588][ T34] ? rcu_is_watching+0x16/0xb0 [ 101.502614][ T34] __submit_merged_write_cond+0x3c9/0x4e0 [ 101.502643][ T34] ? __pfx___submit_merged_write_cond+0x10/0x10 [ 101.502686][ T34] f2fs_write_data_pages+0x2a27/0x36f0 [ 101.502744][ T34] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 101.502780][ T34] ? __pfx_f2fs_available_free_memory+0x10/0x10 [ 101.502837][ T34] ? __pfx_f2fs_balance_fs_bg+0x10/0x10 [ 101.502875][ T34] ? __lock_acquire+0x6df/0x2e50 [ 101.502909][ T34] ? __pfx_f2fs_inode_chksum_set+0x10/0x10 [ 101.502927][ T34] ? f2fs_update_inode+0x146f/0x25c0 [ 101.502946][ T34] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 101.502969][ T34] do_writepages+0x338/0x560 [ 101.502999][ T34] ? reacquire_held_locks+0x117/0x1a0 [ 101.503019][ T34] ? writeback_sb_inodes+0x450/0x1b00 [ 101.503042][ T34] __writeback_single_inode+0x136/0x1220 [ 101.503063][ T34] ? do_raw_spin_unlock+0xf5/0x200 [ 101.503090][ T34] writeback_sb_inodes+0x9de/0x1b00 [ 101.503105][ T34] ? __lock_acquire+0x6df/0x2e50 [ 101.503138][ T34] ? lock_acquire+0x115/0x350 [ 101.503161][ T34] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 101.503227][ T34] ? rcu_is_watching+0x16/0xb0 [ 101.503247][ T34] ? queue_io+0x2d3/0x470 [ 101.503268][ T34] wb_writeback+0x41c/0xad0 [ 101.503296][ T34] ? queue_io+0x201/0x470 [ 101.503319][ T34] ? __pfx_wb_writeback+0x10/0x10 [ 101.503342][ T34] ? do_raw_spin_lock+0x12b/0x2f0 [ 101.503381][ T34] wb_workfn+0x431/0x10f0 [ 101.503421][ T34] ? __pfx_wb_workfn+0x10/0x10 [ 101.503446][ T34] ? rcu_is_watching+0x16/0xb0 [ 101.503466][ T34] ? trace_hrtimer_start+0x82/0x200 [ 101.503497][ T34] ? do_raw_spin_lock+0x12b/0x2f0 [ 101.503528][ T34] ? lock_acquire+0x115/0x350 [ 101.503554][ T34] ? rcu_is_watching+0x16/0xb0 [ 101.503576][ T34] ? process_scheduled_works+0x97a/0x1630 [ 101.503599][ T34] process_scheduled_works+0xc3d/0x1630 [ 101.503652][ T34] ? __pfx_process_scheduled_works+0x10/0x10 [ 101.503681][ T34] ? assign_work+0x3cf/0x5d0 [ 101.503708][ T34] worker_thread+0xa47/0xfb0 [ 101.503758][ T34] kthread+0x38b/0x480 [ 101.503776][ T34] ? __pfx_worker_thread+0x10/0x10 [ 101.503797][ T34] ? __pfx_kthread+0x10/0x10 [ 101.503815][ T34] ret_from_fork+0x514/0xb70 [ 101.503836][ T34] ? __pfx_ret_from_fork+0x10/0x10 [ 101.503862][ T34] ? __switch_to+0xc89/0x1420 [ 101.503888][ T34] ? __pfx_kthread+0x10/0x10 [ 101.503907][ T34] ret_from_fork_asm+0x1a/0x30 [ 101.503948][ T34] [ 101.504974][ T34] F2FS-fs (loop0): Stopped filesystem due to reason: 3 [ 101.670032][ T4931] Bluetooth: hci0: command tx timeout [ 102.055486][ T5919] loop0: detected capacity change from 0 to 40427 [ 102.061454][ T5919] F2FS-fs (loop0): Invalid log blocks per segment (1) [ 102.061476][ T5919] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock [ 102.061816][ T5919] F2FS-fs (loop0): Image doesn't support compression [ 102.061832][ T5919] F2FS-fs (loop0): build fault injection rate: 690 [ 102.061844][ T5919] F2FS-fs (loop0): build fault injection type: 0x35f7 [ 102.062737][ T5919] F2FS-fs (loop0): invalid crc value [ 102.172475][ T5919] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0 [ 102.175350][ T5919] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0 [ 102.175377][ T5919] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0 [ 102.175398][ T5919] F2FS-fs (loop0): Start checkpoint disabled! [ 102.178588][ T5919] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0 [ 102.183949][ T5919] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0 [ 102.183972][ T5919] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6 [ 102.217219][ T49] kworker/u8:3: attempt to access beyond end of device [ 102.217219][ T49] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427 [ 102.217306][ T49] CPU: 1 UID: 0 PID: 49 Comm: kworker/u8:3 Not tainted syzkaller #0 PREEMPT(full) [ 102.217325][ T49] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 102.217336][ T49] Workqueue: writeback wb_workfn (flush-7:0) [ 102.217370][ T49] Call Trace: [ 102.217378][ T49] [ 102.217385][ T49] dump_stack_lvl+0xe8/0x150 [ 102.217414][ T49] f2fs_stop_checkpoint+0x3f6/0x5d0 [ 102.217442][ T49] f2fs_write_end_bio+0x1211/0x16e0 [ 102.217469][ T49] ? blkg_put+0x22/0x240 [ 102.217506][ T49] __submit_merged_bio+0x258/0x6a0 [ 102.217526][ T49] ? rcu_is_watching+0x16/0xb0 [ 102.217554][ T49] __submit_merged_write_cond+0x3c9/0x4e0 [ 102.217585][ T49] ? __pfx___submit_merged_write_cond+0x10/0x10 [ 102.217632][ T49] f2fs_write_data_pages+0x2a27/0x36f0 [ 102.217694][ T49] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 102.217732][ T49] ? __pfx_f2fs_available_free_memory+0x10/0x10 [ 102.217794][ T49] ? __pfx_f2fs_balance_fs_bg+0x10/0x10 [ 102.217840][ T49] ? __lock_acquire+0x6df/0x2e50 [ 102.217875][ T49] ? __pfx_f2fs_inode_chksum_set+0x10/0x10 [ 102.217893][ T49] ? f2fs_update_inode+0x146f/0x25c0 [ 102.217913][ T49] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 102.217937][ T49] do_writepages+0x338/0x560 [ 102.217968][ T49] ? reacquire_held_locks+0x117/0x1a0 [ 102.217988][ T49] ? writeback_sb_inodes+0x450/0x1b00 [ 102.218011][ T49] __writeback_single_inode+0x136/0x1220 [ 102.218032][ T49] ? do_raw_spin_unlock+0xf5/0x200 [ 102.218061][ T49] writeback_sb_inodes+0x9de/0x1b00 [ 102.218077][ T49] ? __lock_acquire+0x6df/0x2e50 [ 102.218118][ T49] ? lock_acquire+0x115/0x350 [ 102.218143][ T49] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 102.218207][ T49] ? rcu_is_watching+0x16/0xb0 [ 102.218227][ T49] ? queue_io+0x2d3/0x470 [ 102.218249][ T49] wb_writeback+0x41c/0xad0 [ 102.218278][ T49] ? queue_io+0x201/0x470 [ 102.218302][ T49] ? __pfx_wb_writeback+0x10/0x10 [ 102.218325][ T49] ? do_raw_spin_lock+0x12b/0x2f0 [ 102.218366][ T49] wb_workfn+0x431/0x10f0 [ 102.218410][ T49] ? __pfx_wb_workfn+0x10/0x10 [ 102.218435][ T49] ? rcu_is_watching+0x16/0xb0 [ 102.218456][ T49] ? trace_hrtimer_start+0x82/0x200 [ 102.218487][ T49] ? do_raw_spin_lock+0x12b/0x2f0 [ 102.218520][ T49] ? lock_acquire+0x115/0x350 [ 102.218548][ T49] ? rcu_is_watching+0x16/0xb0 [ 102.218571][ T49] ? process_scheduled_works+0x97a/0x1630 [ 102.218594][ T49] process_scheduled_works+0xc3d/0x1630 [ 102.218652][ T49] ? __pfx_process_scheduled_works+0x10/0x10 [ 102.218682][ T49] ? assign_work+0x3cf/0x5d0 [ 102.218711][ T49] worker_thread+0xa47/0xfb0 [ 102.218749][ T49] ? __kthread_parkme+0x71/0x1f0 [ 102.218785][ T49] kthread+0x38b/0x480 [ 102.218804][ T49] ? __pfx_worker_thread+0x10/0x10 [ 102.218825][ T49] ? __pfx_kthread+0x10/0x10 [ 102.218844][ T49] ret_from_fork+0x514/0xb70 [ 102.218866][ T49] ? __pfx_ret_from_fork+0x10/0x10 [ 102.218893][ T49] ? __switch_to+0xc89/0x1420 [ 102.218920][ T49] ? __pfx_kthread+0x10/0x10 [ 102.218940][ T49] ret_from_fork_asm+0x1a/0x30 [ 102.218984][ T49] [ 102.229323][ T49] F2FS-fs (loop0): Stopped filesystem due to reason: 3 [ 102.760712][ T5923] loop0: detected capacity change from 0 to 40427 [ 102.781858][ T5923] F2FS-fs (loop0): Invalid log blocks per segment (1) [ 102.781906][ T5923] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock [ 102.781935][ T5923] F2FS-fs (loop0): Image doesn't support compression [ 102.781947][ T5923] F2FS-fs (loop0): build fault injection rate: 690 [ 102.781957][ T5923] F2FS-fs (loop0): build fault injection type: 0x35f7 [ 102.787856][ T5923] F2FS-fs (loop0): invalid crc value [ 102.902335][ T5923] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0 [ 102.905312][ T5923] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0 [ 102.905338][ T5923] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0 [ 102.905358][ T5923] F2FS-fs (loop0): Start checkpoint disabled! [ 102.908309][ T5923] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0 [ 102.913961][ T5923] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0 [ 102.913985][ T5923] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6 [ 102.955808][ T1150] kworker/u8:8: attempt to access beyond end of device [ 102.955808][ T1150] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427 [ 102.955883][ T1150] CPU: 1 UID: 0 PID: 1150 Comm: kworker/u8:8 Not tainted syzkaller #0 PREEMPT(full) [ 102.955903][ T1150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 102.955914][ T1150] Workqueue: writeback wb_workfn (flush-7:0) [ 102.955949][ T1150] Call Trace: [ 102.955956][ T1150] [ 102.955964][ T1150] dump_stack_lvl+0xe8/0x150 [ 102.955992][ T1150] f2fs_stop_checkpoint+0x3f6/0x5d0 [ 102.956020][ T1150] f2fs_write_end_bio+0x1211/0x16e0 [ 102.956047][ T1150] ? blkg_put+0x22/0x240 [ 102.956083][ T1150] __submit_merged_bio+0x258/0x6a0 [ 102.956104][ T1150] ? rcu_is_watching+0x16/0xb0 [ 102.956131][ T1150] __submit_merged_write_cond+0x3c9/0x4e0 [ 102.956161][ T1150] ? __pfx___submit_merged_write_cond+0x10/0x10 [ 102.956213][ T1150] f2fs_write_data_pages+0x2a27/0x36f0 [ 102.956284][ T1150] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 102.956323][ T1150] ? __pfx_f2fs_available_free_memory+0x10/0x10 [ 102.956384][ T1150] ? __pfx_f2fs_balance_fs_bg+0x10/0x10 [ 102.956426][ T1150] ? __lock_acquire+0x6df/0x2e50 [ 102.956464][ T1150] ? __lock_acquire+0x6df/0x2e50 [ 102.956482][ T1150] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 102.956506][ T1150] do_writepages+0x338/0x560 [ 102.956538][ T1150] ? reacquire_held_locks+0x117/0x1a0 [ 102.956558][ T1150] ? writeback_sb_inodes+0x450/0x1b00 [ 102.956582][ T1150] __writeback_single_inode+0x136/0x1220 [ 102.956603][ T1150] ? do_raw_spin_unlock+0xf5/0x200 [ 102.956632][ T1150] writeback_sb_inodes+0x9de/0x1b00 [ 102.956648][ T1150] ? __lock_acquire+0x6df/0x2e50 [ 102.956693][ T1150] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 102.956756][ T1150] ? rcu_is_watching+0x16/0xb0 [ 102.956777][ T1150] ? queue_io+0x2d3/0x470 [ 102.956799][ T1150] wb_writeback+0x41c/0xad0 [ 102.956828][ T1150] ? queue_io+0x201/0x470 [ 102.956851][ T1150] ? __pfx_wb_writeback+0x10/0x10 [ 102.956875][ T1150] ? do_raw_spin_lock+0x12b/0x2f0 [ 102.956916][ T1150] wb_workfn+0x431/0x10f0 [ 102.956959][ T1150] ? __pfx_wb_workfn+0x10/0x10 [ 102.956985][ T1150] ? rcu_is_watching+0x16/0xb0 [ 102.957005][ T1150] ? trace_hrtimer_start+0x82/0x200 [ 102.957036][ T1150] ? do_raw_spin_lock+0x12b/0x2f0 [ 102.957093][ T1150] ? lock_acquire+0x115/0x350 [ 102.957121][ T1150] ? rcu_is_watching+0x16/0xb0 [ 102.957144][ T1150] ? process_scheduled_works+0x97a/0x1630 [ 102.957168][ T1150] process_scheduled_works+0xc3d/0x1630 [ 102.957233][ T1150] ? __pfx_process_scheduled_works+0x10/0x10 [ 102.957263][ T1150] ? assign_work+0x3cf/0x5d0 [ 102.957291][ T1150] worker_thread+0xa47/0xfb0 [ 102.957345][ T1150] kthread+0x38b/0x480 [ 102.957364][ T1150] ? __pfx_worker_thread+0x10/0x10 [ 102.957384][ T1150] ? __pfx_kthread+0x10/0x10 [ 102.957404][ T1150] ret_from_fork+0x514/0xb70 [ 102.957426][ T1150] ? __pfx_ret_from_fork+0x10/0x10 [ 102.957452][ T1150] ? __switch_to+0xc89/0x1420 [ 102.957479][ T1150] ? __pfx_kthread+0x10/0x10 [ 102.957499][ T1150] ret_from_fork_asm+0x1a/0x30 [ 102.957543][ T1150] [ 102.958770][ T1150] F2FS-fs (loop0): Stopped filesystem due to reason: 3 [ 103.454229][ T5927] loop0: detected capacity change from 0 to 40427 [ 103.461596][ T5927] F2FS-fs (loop0): Invalid log blocks per segment (1) [ 103.461636][ T5927] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock [ 103.471957][ T5927] F2FS-fs (loop0): Image doesn't support compression [ 103.471977][ T5927] F2FS-fs (loop0): build fault injection rate: 690 [ 103.471989][ T5927] F2FS-fs (loop0): build fault injection type: 0x35f7 [ 103.473226][ T5927] F2FS-fs (loop0): invalid crc value [ 103.593034][ T5927] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0 [ 103.596450][ T5927] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0 [ 103.596478][ T5927] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0 [ 103.596499][ T5927] F2FS-fs (loop0): Start checkpoint disabled! [ 103.602020][ T5927] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0 [ 103.607895][ T5927] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0 [ 103.607919][ T5927] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6 [ 103.637944][ T1150] kworker/u8:8: attempt to access beyond end of device [ 103.637944][ T1150] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427 [ 103.638017][ T1150] CPU: 1 UID: 0 PID: 1150 Comm: kworker/u8:8 Not tainted syzkaller #0 PREEMPT(full) [ 103.638036][ T1150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 103.638047][ T1150] Workqueue: writeback wb_workfn (flush-7:0) [ 103.638081][ T1150] Call Trace: [ 103.638088][ T1150] [ 103.638095][ T1150] dump_stack_lvl+0xe8/0x150 [ 103.638123][ T1150] f2fs_stop_checkpoint+0x3f6/0x5d0 [ 103.638149][ T1150] f2fs_write_end_bio+0x1211/0x16e0 [ 103.638176][ T1150] ? blkg_put+0x22/0x240 [ 103.638210][ T1150] __submit_merged_bio+0x258/0x6a0 [ 103.638230][ T1150] ? rcu_is_watching+0x16/0xb0 [ 103.638256][ T1150] __submit_merged_write_cond+0x3c9/0x4e0 [ 103.638285][ T1150] ? __pfx___submit_merged_write_cond+0x10/0x10 [ 103.638328][ T1150] f2fs_write_data_pages+0x2a27/0x36f0 [ 103.638386][ T1150] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 103.638422][ T1150] ? __pfx_f2fs_available_free_memory+0x10/0x10 [ 103.638480][ T1150] ? __pfx_f2fs_balance_fs_bg+0x10/0x10 [ 103.638519][ T1150] ? __lock_acquire+0x6df/0x2e50 [ 103.638551][ T1150] ? __pfx_f2fs_inode_chksum_set+0x10/0x10 [ 103.638573][ T1150] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 103.638597][ T1150] do_writepages+0x338/0x560 [ 103.638621][ T1150] ? rcu_is_watching+0x16/0xb0 [ 103.638653][ T1150] ? reacquire_held_locks+0x117/0x1a0 [ 103.638673][ T1150] ? writeback_sb_inodes+0x450/0x1b00 [ 103.638700][ T1150] __writeback_single_inode+0x136/0x1220 [ 103.638721][ T1150] ? do_raw_spin_unlock+0xf5/0x200 [ 103.638748][ T1150] writeback_sb_inodes+0x9de/0x1b00 [ 103.638764][ T1150] ? __lock_acquire+0x6df/0x2e50 [ 103.638796][ T1150] ? lock_acquire+0x115/0x350 [ 103.638819][ T1150] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 103.638878][ T1150] ? rcu_is_watching+0x16/0xb0 [ 103.638898][ T1150] ? queue_io+0x2d3/0x470 [ 103.638918][ T1150] wb_writeback+0x41c/0xad0 [ 103.638946][ T1150] ? queue_io+0x201/0x470 [ 103.638969][ T1150] ? __pfx_wb_writeback+0x10/0x10 [ 103.638992][ T1150] ? do_raw_spin_lock+0x12b/0x2f0 [ 103.639030][ T1150] wb_workfn+0x431/0x10f0 [ 103.639070][ T1150] ? __pfx_wb_workfn+0x10/0x10 [ 103.639094][ T1150] ? rcu_is_watching+0x16/0xb0 [ 103.639115][ T1150] ? trace_hrtimer_start+0x82/0x200 [ 103.639145][ T1150] ? do_raw_spin_lock+0x12b/0x2f0 [ 103.639177][ T1150] ? lock_acquire+0x115/0x350 [ 103.639203][ T1150] ? rcu_is_watching+0x16/0xb0 [ 103.639225][ T1150] ? process_scheduled_works+0x97a/0x1630 [ 103.639248][ T1150] process_scheduled_works+0xc3d/0x1630 [ 103.639300][ T1150] ? __pfx_process_scheduled_works+0x10/0x10 [ 103.639329][ T1150] ? assign_work+0x3cf/0x5d0 [ 103.639356][ T1150] worker_thread+0xa47/0xfb0 [ 103.639405][ T1150] kthread+0x38b/0x480 [ 103.639423][ T1150] ? __pfx_worker_thread+0x10/0x10 [ 103.639444][ T1150] ? __pfx_kthread+0x10/0x10 [ 103.639464][ T1150] ret_from_fork+0x514/0xb70 [ 103.639484][ T1150] ? __pfx_ret_from_fork+0x10/0x10 [ 103.639510][ T1150] ? __switch_to+0xc89/0x1420 [ 103.639536][ T1150] ? __pfx_kthread+0x10/0x10 [ 103.639555][ T1150] ret_from_fork_asm+0x1a/0x30 [ 103.639596][ T1150] [ 103.639668][ T1150] F2FS-fs (loop0): Stopped filesystem due to reason: 3 [ 104.174002][ T5931] loop0: detected capacity change from 0 to 40427 [ 104.184021][ T5931] F2FS-fs (loop0): Invalid log blocks per segment (1) [ 104.184066][ T5931] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock [ 104.184486][ T5931] F2FS-fs (loop0): Image doesn't support compression [ 104.184509][ T5931] F2FS-fs (loop0): build fault injection rate: 690 [ 104.184526][ T5931] F2FS-fs (loop0): build fault injection type: 0x35f7 [ 104.185405][ T5931] F2FS-fs (loop0): invalid crc value [ 104.301459][ T5931] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0 [ 104.313765][ T5931] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0 [ 104.321536][ T5931] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0 [ 104.321635][ T5931] F2FS-fs (loop0): Start checkpoint disabled! [ 104.327329][ T5931] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0 2026/08/15 01:58:58 executed programs: 10 [ 104.328340][ T5931] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0 [ 104.328360][ T5931] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6 [ 104.348114][ T49] kworker/u8:3: attempt to access beyond end of device [ 104.348114][ T49] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427 [ 104.348188][ T49] CPU: 1 UID: 0 PID: 49 Comm: kworker/u8:3 Not tainted syzkaller #0 PREEMPT(full) [ 104.348208][ T49] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 104.348219][ T49] Workqueue: writeback wb_workfn (flush-7:0) [ 104.348254][ T49] Call Trace: [ 104.348262][ T49] [ 104.348270][ T49] dump_stack_lvl+0xe8/0x150 [ 104.348297][ T49] f2fs_stop_checkpoint+0x3f6/0x5d0 [ 104.348325][ T49] f2fs_write_end_bio+0x1211/0x16e0 [ 104.348352][ T49] ? blkg_put+0x22/0x240 [ 104.348389][ T49] __submit_merged_bio+0x258/0x6a0 [ 104.348410][ T49] ? rcu_is_watching+0x16/0xb0 [ 104.348437][ T49] __submit_merged_write_cond+0x3c9/0x4e0 [ 104.348468][ T49] ? __pfx___submit_merged_write_cond+0x10/0x10 [ 104.348514][ T49] f2fs_write_data_pages+0x2a27/0x36f0 [ 104.348576][ T49] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 104.348614][ T49] ? __pfx_f2fs_available_free_memory+0x10/0x10 [ 104.348680][ T49] ? __pfx_f2fs_balance_fs_bg+0x10/0x10 [ 104.348722][ T49] ? __lock_acquire+0x6df/0x2e50 [ 104.348758][ T49] ? __pfx_f2fs_inode_chksum_set+0x10/0x10 [ 104.348777][ T49] ? f2fs_update_inode+0x146f/0x25c0 [ 104.348795][ T49] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 104.348820][ T49] do_writepages+0x338/0x560 [ 104.348852][ T49] ? reacquire_held_locks+0x117/0x1a0 [ 104.348872][ T49] ? writeback_sb_inodes+0x450/0x1b00 [ 104.348895][ T49] __writeback_single_inode+0x136/0x1220 [ 104.348917][ T49] ? do_raw_spin_unlock+0xf5/0x200 [ 104.348945][ T49] writeback_sb_inodes+0x9de/0x1b00 [ 104.348961][ T49] ? __lock_acquire+0x6df/0x2e50 [ 104.348995][ T49] ? lock_acquire+0x115/0x350 [ 104.349020][ T49] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 104.349094][ T49] ? rcu_is_watching+0x16/0xb0 [ 104.349115][ T49] ? queue_io+0x2d3/0x470 [ 104.349136][ T49] wb_writeback+0x41c/0xad0 [ 104.349165][ T49] ? queue_io+0x201/0x470 [ 104.349189][ T49] ? __pfx_wb_writeback+0x10/0x10 [ 104.349213][ T49] ? do_raw_spin_lock+0x12b/0x2f0 [ 104.349253][ T49] wb_workfn+0x431/0x10f0 [ 104.349296][ T49] ? __pfx_wb_workfn+0x10/0x10 [ 104.349323][ T49] ? timerqueue_linked_add+0x287/0x2e0 [ 104.349356][ T49] ? do_raw_spin_lock+0x12b/0x2f0 [ 104.349389][ T49] ? lock_acquire+0x115/0x350 [ 104.349416][ T49] ? rcu_is_watching+0x16/0xb0 [ 104.349439][ T49] ? process_scheduled_works+0x97a/0x1630 [ 104.349463][ T49] process_scheduled_works+0xc3d/0x1630 [ 104.349520][ T49] ? __pfx_process_scheduled_works+0x10/0x10 [ 104.349550][ T49] ? assign_work+0x3cf/0x5d0 [ 104.349579][ T49] worker_thread+0xa47/0xfb0 [ 104.349617][ T49] ? __kthread_parkme+0x71/0x1f0 [ 104.349653][ T49] kthread+0x38b/0x480 [ 104.349672][ T49] ? __pfx_worker_thread+0x10/0x10 [ 104.349692][ T49] ? __pfx_kthread+0x10/0x10 [ 104.349712][ T49] ret_from_fork+0x514/0xb70 [ 104.349746][ T49] ? __pfx_ret_from_fork+0x10/0x10 [ 104.349772][ T49] ? __switch_to+0xc89/0x1420 [ 104.349799][ T49] ? __pfx_kthread+0x10/0x10 [ 104.349819][ T49] ret_from_fork_asm+0x1a/0x30 [ 104.349863][ T49] [ 104.359559][ T49] F2FS-fs (loop0): Stopped filesystem due to reason: 3 [ 104.876188][ T5935] loop0: detected capacity change from 0 to 40427 [ 104.881111][ T5935] F2FS-fs (loop0): Invalid log blocks per segment (1) [ 104.881131][ T5935] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock [ 104.881442][ T5935] F2FS-fs (loop0): Image doesn't support compression [ 104.881457][ T5935] F2FS-fs (loop0): build fault injection rate: 690 [ 104.881469][ T5935] F2FS-fs (loop0): build fault injection type: 0x35f7 [ 104.882211][ T5935] F2FS-fs (loop0): invalid crc value [ 104.997329][ T5935] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0 [ 105.001143][ T5935] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0 [ 105.001169][ T5935] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0 [ 105.001189][ T5935] F2FS-fs (loop0): Start checkpoint disabled! [ 105.004984][ T5935] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0 [ 105.011926][ T5935] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0 [ 105.011950][ T5935] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6 [ 105.053062][ T1150] kworker/u8:8: attempt to access beyond end of device [ 105.053062][ T1150] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427 [ 105.053134][ T1150] CPU: 0 UID: 0 PID: 1150 Comm: kworker/u8:8 Not tainted syzkaller #0 PREEMPT(full) [ 105.053153][ T1150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 105.053172][ T1150] Workqueue: writeback wb_workfn (flush-7:0) [ 105.053207][ T1150] Call Trace: [ 105.053214][ T1150] [ 105.053222][ T1150] dump_stack_lvl+0xe8/0x150 [ 105.053249][ T1150] f2fs_stop_checkpoint+0x3f6/0x5d0 [ 105.053276][ T1150] f2fs_write_end_bio+0x1211/0x16e0 [ 105.053302][ T1150] ? blkg_put+0x22/0x240 [ 105.053337][ T1150] __submit_merged_bio+0x258/0x6a0 [ 105.053358][ T1150] ? rcu_is_watching+0x16/0xb0 [ 105.053392][ T1150] __submit_merged_write_cond+0x3c9/0x4e0 [ 105.053421][ T1150] ? __pfx___submit_merged_write_cond+0x10/0x10 [ 105.053470][ T1150] f2fs_write_data_pages+0x2a27/0x36f0 [ 105.053535][ T1150] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 105.053571][ T1150] ? __pfx_f2fs_available_free_memory+0x10/0x10 [ 105.053628][ T1150] ? __pfx_f2fs_balance_fs_bg+0x10/0x10 [ 105.053681][ T1150] ? __lock_acquire+0x6df/0x2e50 [ 105.053716][ T1150] ? __pfx_f2fs_inode_chksum_set+0x10/0x10 [ 105.053735][ T1150] ? f2fs_update_inode+0x146f/0x25c0 [ 105.053754][ T1150] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 105.053777][ T1150] do_writepages+0x338/0x560 [ 105.053808][ T1150] ? reacquire_held_locks+0x117/0x1a0 [ 105.053827][ T1150] ? writeback_sb_inodes+0x450/0x1b00 [ 105.053850][ T1150] __writeback_single_inode+0x136/0x1220 [ 105.053870][ T1150] ? do_raw_spin_unlock+0xf5/0x200 [ 105.053898][ T1150] writeback_sb_inodes+0x9de/0x1b00 [ 105.053914][ T1150] ? __lock_acquire+0x6df/0x2e50 [ 105.053946][ T1150] ? lock_acquire+0x115/0x350 [ 105.053970][ T1150] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 105.054028][ T1150] ? rcu_is_watching+0x16/0xb0 [ 105.054048][ T1150] ? queue_io+0x2d3/0x470 [ 105.054068][ T1150] wb_writeback+0x41c/0xad0 [ 105.054097][ T1150] ? queue_io+0x201/0x470 [ 105.054119][ T1150] ? __pfx_wb_writeback+0x10/0x10 [ 105.054142][ T1150] ? do_raw_spin_lock+0x12b/0x2f0 [ 105.054181][ T1150] wb_workfn+0x431/0x10f0 [ 105.054221][ T1150] ? __pfx_wb_workfn+0x10/0x10 [ 105.054246][ T1150] ? rcu_is_watching+0x16/0xb0 [ 105.054266][ T1150] ? trace_hrtimer_start+0x82/0x200 [ 105.054296][ T1150] ? do_raw_spin_lock+0x12b/0x2f0 [ 105.054327][ T1150] ? lock_acquire+0x115/0x350 [ 105.054353][ T1150] ? rcu_is_watching+0x16/0xb0 [ 105.054379][ T1150] ? process_scheduled_works+0x97a/0x1630 [ 105.054402][ T1150] process_scheduled_works+0xc3d/0x1630 [ 105.054455][ T1150] ? __pfx_process_scheduled_works+0x10/0x10 [ 105.054484][ T1150] ? assign_work+0x3cf/0x5d0 [ 105.054512][ T1150] worker_thread+0xa47/0xfb0 [ 105.054561][ T1150] kthread+0x38b/0x480 [ 105.054580][ T1150] ? __pfx_worker_thread+0x10/0x10 [ 105.054600][ T1150] ? __pfx_kthread+0x10/0x10 [ 105.054619][ T1150] ret_from_fork+0x514/0xb70 [ 105.054640][ T1150] ? __pfx_ret_from_fork+0x10/0x10 [ 105.054673][ T1150] ? __switch_to+0xc89/0x1420 [ 105.054700][ T1150] ? __pfx_kthread+0x10/0x10 [ 105.054719][ T1150] ret_from_fork_asm+0x1a/0x30 [ 105.054760][ T1150] [ 105.060111][ T1150] F2FS-fs (loop0): Stopped filesystem due to reason: 3 [ 105.583398][ T5939] loop0: detected capacity change from 0 to 40427 [ 105.589887][ T5939] F2FS-fs (loop0): Invalid log blocks per segment (1) [ 105.589908][ T5939] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock [ 105.590244][ T5939] F2FS-fs (loop0): Image doesn't support compression [ 105.590259][ T5939] F2FS-fs (loop0): build fault injection rate: 690 [ 105.590271][ T5939] F2FS-fs (loop0): build fault injection type: 0x35f7 [ 105.592628][ T5939] F2FS-fs (loop0): invalid crc value [ 105.700704][ T5939] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0 [ 105.713783][ T5939] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0 [ 105.721649][ T5939] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0 [ 105.733910][ T5939] F2FS-fs (loop0): Start checkpoint disabled! [ 105.743991][ T5939] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0 [ 105.745073][ T5939] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0 [ 105.745093][ T5939] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6 [ 105.770364][ T49] kworker/u8:3: attempt to access beyond end of device [ 105.770364][ T49] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427 [ 105.771187][ T49] CPU: 1 UID: 0 PID: 49 Comm: kworker/u8:3 Not tainted syzkaller #0 PREEMPT(full) [ 105.771210][ T49] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 105.771222][ T49] Workqueue: writeback wb_workfn (flush-7:0) [ 105.771256][ T49] Call Trace: [ 105.771263][ T49] [ 105.771275][ T49] dump_stack_lvl+0xe8/0x150 [ 105.771303][ T49] f2fs_stop_checkpoint+0x3f6/0x5d0 [ 105.771331][ T49] f2fs_write_end_bio+0x1211/0x16e0 [ 105.771358][ T49] ? blkg_put+0x22/0x240 [ 105.771396][ T49] __submit_merged_bio+0x258/0x6a0 [ 105.771416][ T49] ? rcu_is_watching+0x16/0xb0 [ 105.771443][ T49] __submit_merged_write_cond+0x3c9/0x4e0 [ 105.771474][ T49] ? __pfx___submit_merged_write_cond+0x10/0x10 [ 105.771521][ T49] f2fs_write_data_pages+0x2a27/0x36f0 [ 105.771582][ T49] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 105.771620][ T49] ? __pfx_f2fs_available_free_memory+0x10/0x10 [ 105.771682][ T49] ? __pfx_f2fs_balance_fs_bg+0x10/0x10 [ 105.771723][ T49] ? __lock_acquire+0x6df/0x2e50 [ 105.771759][ T49] ? __pfx_f2fs_inode_chksum_set+0x10/0x10 [ 105.771778][ T49] ? f2fs_update_inode+0x146f/0x25c0 [ 105.771797][ T49] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 105.771821][ T49] do_writepages+0x338/0x560 [ 105.771852][ T49] ? reacquire_held_locks+0x117/0x1a0 [ 105.771872][ T49] ? writeback_sb_inodes+0x450/0x1b00 [ 105.771896][ T49] __writeback_single_inode+0x136/0x1220 [ 105.771917][ T49] ? do_raw_spin_unlock+0xf5/0x200 [ 105.771946][ T49] writeback_sb_inodes+0x9de/0x1b00 [ 105.771962][ T49] ? __lock_acquire+0x6df/0x2e50 [ 105.771996][ T49] ? lock_acquire+0x115/0x350 [ 105.772021][ T49] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 105.772085][ T49] ? rcu_is_watching+0x16/0xb0 [ 105.772106][ T49] ? queue_io+0x2d3/0x470 [ 105.772135][ T49] wb_writeback+0x41c/0xad0 [ 105.772165][ T49] ? queue_io+0x201/0x470 [ 105.772189][ T49] ? __pfx_wb_writeback+0x10/0x10 [ 105.772212][ T49] ? do_raw_spin_lock+0x12b/0x2f0 [ 105.772253][ T49] wb_workfn+0x431/0x10f0 [ 105.772298][ T49] ? __pfx_wb_workfn+0x10/0x10 [ 105.772323][ T49] ? rcu_is_watching+0x16/0xb0 [ 105.772344][ T49] ? trace_hrtimer_start+0x82/0x200 [ 105.772375][ T49] ? do_raw_spin_lock+0x12b/0x2f0 [ 105.772408][ T49] ? lock_acquire+0x115/0x350 [ 105.772435][ T49] ? rcu_is_watching+0x16/0xb0 [ 105.772457][ T49] ? process_scheduled_works+0x97a/0x1630 [ 105.772481][ T49] process_scheduled_works+0xc3d/0x1630 [ 105.772538][ T49] ? __pfx_process_scheduled_works+0x10/0x10 [ 105.772568][ T49] ? assign_work+0x3cf/0x5d0 [ 105.772597][ T49] worker_thread+0xa47/0xfb0 [ 105.772636][ T49] ? __kthread_parkme+0x71/0x1f0 [ 105.772672][ T49] kthread+0x38b/0x480 [ 105.772691][ T49] ? __pfx_worker_thread+0x10/0x10 [ 105.772711][ T49] ? __pfx_kthread+0x10/0x10 [ 105.772731][ T49] ret_from_fork+0x514/0xb70 [ 105.772754][ T49] ? __pfx_ret_from_fork+0x10/0x10 [ 105.772780][ T49] ? __switch_to+0xc89/0x1420 [ 105.772807][ T49] ? __pfx_kthread+0x10/0x10 [ 105.772827][ T49] ret_from_fork_asm+0x1a/0x30 [ 105.772871][ T49] [ 105.774144][ T49] F2FS-fs (loop0): Stopped filesystem due to reason: 3 [ 106.290307][ T5943] loop0: detected capacity change from 0 to 40427 [ 106.298644][ T5943] F2FS-fs (loop0): Invalid log blocks per segment (1) [ 106.298664][ T5943] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock [ 106.306548][ T5943] F2FS-fs (loop0): Image doesn't support compression [ 106.306570][ T5943] F2FS-fs (loop0): build fault injection rate: 690 [ 106.306583][ T5943] F2FS-fs (loop0): build fault injection type: 0x35f7 [ 106.307706][ T5943] F2FS-fs (loop0): invalid crc value [ 106.424905][ T5943] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0 [ 106.427244][ T5943] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0 [ 106.427662][ T5943] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0 [ 106.427686][ T5943] F2FS-fs (loop0): Start checkpoint disabled! [ 106.431693][ T5943] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0 [ 106.432655][ T5943] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0 [ 106.432674][ T5943] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6 [ 106.451180][ T49] kworker/u8:3: attempt to access beyond end of device [ 106.451180][ T49] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427 [ 106.451269][ T49] CPU: 0 UID: 0 PID: 49 Comm: kworker/u8:3 Not tainted syzkaller #0 PREEMPT(full) [ 106.451303][ T49] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 106.451314][ T49] Workqueue: writeback wb_workfn (flush-7:0) [ 106.451362][ T49] Call Trace: [ 106.451369][ T49] [ 106.451377][ T49] dump_stack_lvl+0xe8/0x150 [ 106.451405][ T49] f2fs_stop_checkpoint+0x3f6/0x5d0 [ 106.451432][ T49] f2fs_write_end_bio+0x1211/0x16e0 [ 106.451459][ T49] ? blkg_put+0x22/0x240 [ 106.451494][ T49] __submit_merged_bio+0x258/0x6a0 [ 106.451514][ T49] ? rcu_is_watching+0x16/0xb0 [ 106.451539][ T49] __submit_merged_write_cond+0x3c9/0x4e0 [ 106.451569][ T49] ? __pfx___submit_merged_write_cond+0x10/0x10 [ 106.451619][ T49] f2fs_write_data_pages+0x2a27/0x36f0 [ 106.451677][ T49] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 106.451713][ T49] ? __pfx_f2fs_available_free_memory+0x10/0x10 [ 106.451770][ T49] ? __pfx_f2fs_balance_fs_bg+0x10/0x10 [ 106.451808][ T49] ? __lock_acquire+0x6df/0x2e50 [ 106.451841][ T49] ? __pfx_f2fs_inode_chksum_set+0x10/0x10 [ 106.451859][ T49] ? f2fs_update_inode+0x146f/0x25c0 [ 106.451877][ T49] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 106.451901][ T49] do_writepages+0x338/0x560 [ 106.451931][ T49] ? reacquire_held_locks+0x117/0x1a0 [ 106.451951][ T49] ? writeback_sb_inodes+0x450/0x1b00 [ 106.451982][ T49] __writeback_single_inode+0x136/0x1220 [ 106.452003][ T49] ? do_raw_spin_unlock+0xf5/0x200 [ 106.452030][ T49] writeback_sb_inodes+0x9de/0x1b00 [ 106.452045][ T49] ? __lock_acquire+0x6df/0x2e50 [ 106.452077][ T49] ? lock_acquire+0x115/0x350 [ 106.452101][ T49] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 106.452159][ T49] ? rcu_is_watching+0x16/0xb0 [ 106.452179][ T49] ? queue_io+0x2d3/0x470 [ 106.452200][ T49] wb_writeback+0x41c/0xad0 [ 106.452228][ T49] ? queue_io+0x201/0x470 [ 106.452251][ T49] ? __pfx_wb_writeback+0x10/0x10 [ 106.452278][ T49] ? do_raw_spin_lock+0x12b/0x2f0 [ 106.452316][ T49] wb_workfn+0x431/0x10f0 [ 106.452357][ T49] ? __pfx_wb_workfn+0x10/0x10 [ 106.452381][ T49] ? rcu_is_watching+0x16/0xb0 [ 106.452401][ T49] ? trace_hrtimer_start+0x82/0x200 [ 106.452431][ T49] ? do_raw_spin_lock+0x12b/0x2f0 [ 106.452463][ T49] ? lock_acquire+0x115/0x350 [ 106.452489][ T49] ? rcu_is_watching+0x16/0xb0 [ 106.452511][ T49] ? process_scheduled_works+0x97a/0x1630 [ 106.452534][ T49] process_scheduled_works+0xc3d/0x1630 [ 106.452586][ T49] ? __pfx_process_scheduled_works+0x10/0x10 [ 106.452622][ T49] ? assign_work+0x3cf/0x5d0 [ 106.452650][ T49] worker_thread+0xa47/0xfb0 [ 106.452686][ T49] ? __kthread_parkme+0x71/0x1f0 [ 106.452721][ T49] kthread+0x38b/0x480 [ 106.452739][ T49] ? __pfx_worker_thread+0x10/0x10 [ 106.452759][ T49] ? __pfx_kthread+0x10/0x10 [ 106.452778][ T49] ret_from_fork+0x514/0xb70 [ 106.452799][ T49] ? __pfx_ret_from_fork+0x10/0x10 [ 106.452825][ T49] ? __switch_to+0xc89/0x1420 [ 106.452851][ T49] ? __pfx_kthread+0x10/0x10 [ 106.452871][ T49] ret_from_fork_asm+0x1a/0x30 [ 106.452912][ T49] [ 106.453885][ T49] F2FS-fs (loop0): Stopped filesystem due to reason: 3 [ 106.992679][ T5947] loop0: detected capacity change from 0 to 40427 [ 107.007979][ T5947] F2FS-fs (loop0): Invalid log blocks per segment (1) [ 107.008002][ T5947] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock [ 107.008028][ T5947] F2FS-fs (loop0): Image doesn't support compression [ 107.008041][ T5947] F2FS-fs (loop0): build fault injection rate: 690 [ 107.008064][ T5947] F2FS-fs (loop0): build fault injection type: 0x35f7 [ 107.011636][ T5947] F2FS-fs (loop0): invalid crc value [ 107.103901][ T5947] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0 [ 107.106337][ T5947] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0 [ 107.106360][ T5947] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0 [ 107.106380][ T5947] F2FS-fs (loop0): Start checkpoint disabled! [ 107.111505][ T5947] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0 [ 107.112538][ T5947] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0 [ 107.112557][ T5947] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6 [ 107.135876][ T34] kworker/u8:2: attempt to access beyond end of device [ 107.135876][ T34] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427 [ 107.135947][ T34] CPU: 1 UID: 0 PID: 34 Comm: kworker/u8:2 Not tainted syzkaller #0 PREEMPT(full) [ 107.135967][ T34] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 107.135978][ T34] Workqueue: writeback wb_workfn (flush-7:0) [ 107.136011][ T34] Call Trace: [ 107.136019][ T34] [ 107.136026][ T34] dump_stack_lvl+0xe8/0x150 [ 107.136054][ T34] f2fs_stop_checkpoint+0x3f6/0x5d0 [ 107.136080][ T34] f2fs_write_end_bio+0x1211/0x16e0 [ 107.136107][ T34] ? blkg_put+0x22/0x240 [ 107.136151][ T34] __submit_merged_bio+0x258/0x6a0 [ 107.136171][ T34] ? rcu_is_watching+0x16/0xb0 [ 107.136197][ T34] __submit_merged_write_cond+0x3c9/0x4e0 [ 107.136226][ T34] ? __pfx___submit_merged_write_cond+0x10/0x10 [ 107.136268][ T34] f2fs_write_data_pages+0x2a27/0x36f0 [ 107.136326][ T34] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 107.136366][ T34] ? __pfx_f2fs_available_free_memory+0x10/0x10 [ 107.136423][ T34] ? __pfx_f2fs_balance_fs_bg+0x10/0x10 [ 107.136461][ T34] ? __lock_acquire+0x6df/0x2e50 [ 107.136495][ T34] ? __pfx_f2fs_inode_chksum_set+0x10/0x10 [ 107.136513][ T34] ? f2fs_update_inode+0x146f/0x25c0 [ 107.136532][ T34] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 107.136556][ T34] do_writepages+0x338/0x560 [ 107.136586][ T34] ? reacquire_held_locks+0x117/0x1a0 [ 107.136606][ T34] ? writeback_sb_inodes+0x450/0x1b00 [ 107.136628][ T34] __writeback_single_inode+0x136/0x1220 [ 107.136649][ T34] ? do_raw_spin_unlock+0xf5/0x200 [ 107.136677][ T34] writeback_sb_inodes+0x9de/0x1b00 [ 107.136692][ T34] ? __lock_acquire+0x6df/0x2e50 [ 107.136724][ T34] ? lock_acquire+0x115/0x350 [ 107.136748][ T34] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 107.136806][ T34] ? rcu_is_watching+0x16/0xb0 [ 107.136826][ T34] ? queue_io+0x2d3/0x470 [ 107.136847][ T34] wb_writeback+0x41c/0xad0 [ 107.136875][ T34] ? queue_io+0x201/0x470 [ 107.136898][ T34] ? __pfx_wb_writeback+0x10/0x10 [ 107.136921][ T34] ? do_raw_spin_lock+0x12b/0x2f0 [ 107.136960][ T34] wb_workfn+0x431/0x10f0 [ 107.137000][ T34] ? __pfx_wb_workfn+0x10/0x10 [ 107.137041][ T34] ? rcu_is_watching+0x16/0xb0 [ 107.137062][ T34] ? trace_hrtimer_start+0x82/0x200 [ 107.137092][ T34] ? do_raw_spin_lock+0x12b/0x2f0 [ 107.137123][ T34] ? lock_acquire+0x115/0x350 [ 107.137156][ T34] ? rcu_is_watching+0x16/0xb0 [ 107.137178][ T34] ? process_scheduled_works+0x97a/0x1630 [ 107.137202][ T34] process_scheduled_works+0xc3d/0x1630 [ 107.137254][ T34] ? __pfx_process_scheduled_works+0x10/0x10 [ 107.137283][ T34] ? assign_work+0x3cf/0x5d0 [ 107.137310][ T34] worker_thread+0xa47/0xfb0 [ 107.137360][ T34] kthread+0x38b/0x480 [ 107.137378][ T34] ? __pfx_worker_thread+0x10/0x10 [ 107.137398][ T34] ? __pfx_kthread+0x10/0x10 [ 107.137417][ T34] ret_from_fork+0x514/0xb70 [ 107.137438][ T34] ? __pfx_ret_from_fork+0x10/0x10 [ 107.137464][ T34] ? __switch_to+0xc89/0x1420 [ 107.137491][ T34] ? __pfx_kthread+0x10/0x10 [ 107.137510][ T34] ret_from_fork_asm+0x1a/0x30 [ 107.137551][ T34] [ 107.138742][ T34] F2FS-fs (loop0): Stopped filesystem due to reason: 3 [ 107.663720][ T5951] loop0: detected capacity change from 0 to 40427 [ 107.671274][ T5951] F2FS-fs (loop0): Invalid log blocks per segment (1) [ 107.671316][ T5951] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock [ 107.671605][ T5951] F2FS-fs (loop0): Image doesn't support compression [ 107.671620][ T5951] F2FS-fs (loop0): build fault injection rate: 690 [ 107.671632][ T5951] F2FS-fs (loop0): build fault injection type: 0x35f7 [ 107.672409][ T5951] F2FS-fs (loop0): invalid crc value [ 107.756306][ T5951] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0 [ 107.774008][ T5951] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0 [ 107.777329][ T5951] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0 [ 107.777358][ T5951] F2FS-fs (loop0): Start checkpoint disabled! [ 107.784395][ T5951] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0 [ 107.785443][ T5951] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0 [ 107.785465][ T5951] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6 [ 107.808203][ T59] kworker/u8:4: attempt to access beyond end of device [ 107.808203][ T59] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427 [ 107.808274][ T59] CPU: 1 UID: 0 PID: 59 Comm: kworker/u8:4 Not tainted syzkaller #0 PREEMPT(full) [ 107.808294][ T59] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 107.808304][ T59] Workqueue: writeback wb_workfn (flush-7:0) [ 107.808337][ T59] Call Trace: [ 107.808344][ T59] [ 107.808352][ T59] dump_stack_lvl+0xe8/0x150 [ 107.808379][ T59] f2fs_stop_checkpoint+0x3f6/0x5d0 [ 107.808406][ T59] f2fs_write_end_bio+0x1211/0x16e0 [ 107.808432][ T59] ? blkg_put+0x22/0x240 [ 107.808468][ T59] __submit_merged_bio+0x258/0x6a0 [ 107.808487][ T59] ? rcu_is_watching+0x16/0xb0 [ 107.808513][ T59] __submit_merged_write_cond+0x3c9/0x4e0 [ 107.808543][ T59] ? __pfx___submit_merged_write_cond+0x10/0x10 [ 107.808594][ T59] f2fs_write_data_pages+0x2a27/0x36f0 [ 107.808656][ T59] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 107.808692][ T59] ? __pfx_f2fs_available_free_memory+0x10/0x10 [ 107.808749][ T59] ? __pfx_f2fs_balance_fs_bg+0x10/0x10 [ 107.808788][ T59] ? __lock_acquire+0x6df/0x2e50 [ 107.808821][ T59] ? __pfx_f2fs_inode_chksum_set+0x10/0x10 [ 107.808839][ T59] ? f2fs_update_inode+0x146f/0x25c0 [ 107.808858][ T59] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 107.808881][ T59] do_writepages+0x338/0x560 [ 107.808912][ T59] ? reacquire_held_locks+0x117/0x1a0 [ 107.808932][ T59] ? writeback_sb_inodes+0x450/0x1b00 [ 107.808954][ T59] __writeback_single_inode+0x136/0x1220 [ 107.808975][ T59] ? do_raw_spin_unlock+0xf5/0x200 [ 107.809003][ T59] writeback_sb_inodes+0x9de/0x1b00 [ 107.809019][ T59] ? __lock_acquire+0x6df/0x2e50 [ 107.809050][ T59] ? lock_acquire+0x115/0x350 [ 107.809074][ T59] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 107.809132][ T59] ? rcu_is_watching+0x16/0xb0 [ 107.809153][ T59] ? queue_io+0x2d3/0x470 [ 107.809174][ T59] wb_writeback+0x41c/0xad0 [ 107.809202][ T59] ? queue_io+0x201/0x470 [ 107.809224][ T59] ? __pfx_wb_writeback+0x10/0x10 [ 107.809248][ T59] ? do_raw_spin_lock+0x12b/0x2f0 [ 107.809286][ T59] wb_workfn+0x431/0x10f0 [ 107.809326][ T59] ? __pfx_wb_workfn+0x10/0x10 [ 107.809350][ T59] ? rcu_is_watching+0x16/0xb0 [ 107.809370][ T59] ? trace_hrtimer_start+0x82/0x200 [ 107.809401][ T59] ? do_raw_spin_lock+0x12b/0x2f0 [ 107.809432][ T59] ? lock_acquire+0x115/0x350 [ 107.809458][ T59] ? rcu_is_watching+0x16/0xb0 [ 107.809480][ T59] ? process_scheduled_works+0x97a/0x1630 [ 107.809503][ T59] process_scheduled_works+0xc3d/0x1630 [ 107.809555][ T59] ? __pfx_process_scheduled_works+0x10/0x10 [ 107.809591][ T59] ? assign_work+0x3cf/0x5d0 [ 107.809618][ T59] worker_thread+0xa47/0xfb0 [ 107.809655][ T59] ? __kthread_parkme+0x71/0x1f0 [ 107.809689][ T59] kthread+0x38b/0x480 [ 107.809707][ T59] ? __pfx_worker_thread+0x10/0x10 [ 107.809727][ T59] ? __pfx_kthread+0x10/0x10 [ 107.809746][ T59] ret_from_fork+0x514/0xb70 [ 107.809767][ T59] ? __pfx_ret_from_fork+0x10/0x10 [ 107.809793][ T59] ? __switch_to+0xc89/0x1420 [ 107.809819][ T59] ? __pfx_kthread+0x10/0x10 [ 107.809839][ T59] ret_from_fork_asm+0x1a/0x30 [ 107.809880][ T59] [ 107.816444][ T59] F2FS-fs (loop0): Stopped filesystem due to reason: 3 [ 108.339732][ T5955] loop0: detected capacity change from 0 to 40427 [ 108.346725][ T5955] F2FS-fs (loop0): Invalid log blocks per segment (1) [ 108.346778][ T5955] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock [ 108.353855][ T5955] F2FS-fs (loop0): Image doesn't support compression [ 108.353879][ T5955] F2FS-fs (loop0): build fault injection rate: 690 [ 108.353894][ T5955] F2FS-fs (loop0): build fault injection type: 0x35f7 [ 108.377005][ T5955] F2FS-fs (loop0): invalid crc value [ 108.442401][ T5955] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0 [ 108.444973][ T5955] F2FS-fs (loop0): f2fs_disable_checkpoint starts, unusable: 0 [ 108.444998][ T5955] F2FS-fs (loop0): f2fs_disable_checkpoint: call f2fs_write_checkpoint(), meta: 0, node: 0, data: 0 [ 108.445018][ T5955] F2FS-fs (loop0): Start checkpoint disabled! [ 108.448085][ T5955] F2FS-fs (loop0): f2fs_disable_checkpoint finishes, err:0 [ 108.449103][ T5955] F2FS-fs (loop0): Try to recover 1th superblock, ret: 0 [ 108.449123][ T5955] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6 [ 108.462089][ T59] kworker/u8:4: attempt to access beyond end of device [ 108.462089][ T59] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427 [ 108.462159][ T59] CPU: 1 UID: 0 PID: 59 Comm: kworker/u8:4 Not tainted syzkaller #0 PREEMPT(full) [ 108.462179][ T59] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 108.462190][ T59] Workqueue: writeback wb_workfn (flush-7:0) [ 108.462223][ T59] Call Trace: [ 108.462231][ T59] [ 108.462238][ T59] dump_stack_lvl+0xe8/0x150 [ 108.462266][ T59] f2fs_stop_checkpoint+0x3f6/0x5d0 [ 108.462294][ T59] f2fs_write_end_bio+0x1211/0x16e0 [ 108.462322][ T59] ? blkg_put+0x22/0x240 [ 108.462360][ T59] __submit_merged_bio+0x258/0x6a0 [ 108.462380][ T59] ? rcu_is_watching+0x16/0xb0 [ 108.462407][ T59] __submit_merged_write_cond+0x3c9/0x4e0 [ 108.462438][ T59] ? __pfx___submit_merged_write_cond+0x10/0x10 [ 108.462483][ T59] f2fs_write_data_pages+0x2a27/0x36f0 [ 108.462544][ T59] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 108.462582][ T59] ? __pfx_f2fs_available_free_memory+0x10/0x10 [ 108.462644][ T59] ? __pfx_f2fs_balance_fs_bg+0x10/0x10 [ 108.462693][ T59] ? __lock_acquire+0x6df/0x2e50 [ 108.462728][ T59] ? __pfx_f2fs_inode_chksum_set+0x10/0x10 [ 108.462747][ T59] ? f2fs_update_inode+0x146f/0x25c0 [ 108.462766][ T59] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 108.462791][ T59] do_writepages+0x338/0x560 [ 108.462823][ T59] ? reacquire_held_locks+0x117/0x1a0 [ 108.462843][ T59] ? writeback_sb_inodes+0x450/0x1b00 [ 108.462867][ T59] __writeback_single_inode+0x136/0x1220 [ 108.462888][ T59] ? do_raw_spin_unlock+0xf5/0x200 [ 108.462917][ T59] writeback_sb_inodes+0x9de/0x1b00 [ 108.462933][ T59] ? __lock_acquire+0x6df/0x2e50 [ 108.462966][ T59] ? lock_acquire+0x115/0x350 [ 108.462991][ T59] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 108.463062][ T59] ? rcu_is_watching+0x16/0xb0 [ 108.463083][ T59] ? queue_io+0x2d3/0x470 [ 108.463104][ T59] wb_writeback+0x41c/0xad0 [ 108.463133][ T59] ? queue_io+0x201/0x470 [ 108.463157][ T59] ? __pfx_wb_writeback+0x10/0x10 [ 108.463180][ T59] ? do_raw_spin_lock+0x12b/0x2f0 [ 108.463221][ T59] wb_workfn+0x431/0x10f0 [ 108.463264][ T59] ? __pfx_wb_workfn+0x10/0x10 [ 108.463290][ T59] ? rcu_is_watching+0x16/0xb0 [ 108.463310][ T59] ? trace_hrtimer_start+0x82/0x200 [ 108.463341][ T59] ? do_raw_spin_lock+0x12b/0x2f0 [ 108.463374][ T59] ? lock_acquire+0x115/0x350 [ 108.463402][ T59] ? rcu_is_watching+0x16/0xb0 [ 108.463424][ T59] ? process_scheduled_works+0x97a/0x1630 [ 108.463447][ T59] process_scheduled_works+0xc3d/0x1630 [ 108.463504][ T59] ? __pfx_process_scheduled_works+0x10/0x10 [ 108.463535][ T59] ? assign_work+0x3cf/0x5d0 [ 108.463564][ T59] worker_thread+0xa47/0xfb0 [ 108.463603][ T59] ? __kthread_parkme+0x71/0x1f0 [ 108.463639][ T59] kthread+0x38b/0x480 [ 108.463657][ T59] ? __pfx_worker_thread+0x10/0x10 [ 108.463678][ T59] ? __pfx_kthread+0x10/0x10 [ 108.463697][ T59] ret_from_fork+0x514/0xb70 [ 108.463719][ T59] ? __pfx_ret_from_fork+0x10/0x10 [ 108.463745][ T59] ? __switch_to+0xc89/0x1420 [ 108.463772][ T59] ? __pfx_kthread+0x10/0x10 [ 108.463792][ T59] ret_from_fork_asm+0x1a/0x30 [ 108.463836][ T59] [ 108.464876][ T59] F2FS-fs (loop0): Stopped filesystem due to reason: 3 [ 108.989924][ T5959] loop0: detected capacity change from 0 to 40427 [ 108.998433][ T5959] F2FS-fs (loop0): Invalid log blocks per segment (1) [ 109.006377][ T5959] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock [ 109.010851][ T5959] F2FS-fs (loop0): Image doesn't support compression [ 109.010872][ T5959] F2FS-fs (loop0): build fault injection rate: 690 [ 109.010884][ T5959] F2FS-fs (loop0): build fault injection type: 0x35f7