Warning: Permanently added '10.128.0.197' (ED25519) to the list of known hosts. 2026/02/09 14:12:59 ignoring optional flag "type"="gce" 2026/02/09 14:12:59 parsed 1 programs 2026/02/09 14:13:01 executed programs: 0 [ 80.200605][ T4438] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 80.348178][ T4512] chnl_net:caif_netlink_parms(): no params data found [ 80.388614][ T4512] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.396461][ T4512] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.404626][ T4512] device bridge_slave_0 entered promiscuous mode [ 80.413658][ T4512] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.421560][ T4512] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.430480][ T4512] device bridge_slave_1 entered promiscuous mode [ 80.451676][ T4512] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 80.463362][ T4512] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 80.486402][ T4512] team0: Port device team_slave_0 added [ 80.493916][ T4512] team0: Port device team_slave_1 added [ 80.513224][ T4512] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 80.520910][ T4512] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 80.547804][ T4512] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 80.559964][ T4512] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 80.567196][ T4512] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 80.594567][ T4512] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 80.623013][ T4512] device hsr_slave_0 entered promiscuous mode [ 80.630357][ T4512] device hsr_slave_1 entered promiscuous mode [ 81.208830][ T4512] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 81.219957][ T4512] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 81.230117][ T4512] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 81.240690][ T4512] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 81.270411][ T4512] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.277751][ T4512] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.285320][ T4512] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.292582][ T4512] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.348569][ T4512] 8021q: adding VLAN 0 to HW filter on device bond0 [ 81.357264][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.365131][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.377148][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 81.399696][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 81.408513][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 81.418385][ T4512] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.431450][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 81.450366][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 81.460364][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.467816][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.488238][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 81.497967][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 81.507544][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.515051][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.524498][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 81.534395][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 81.557422][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 81.568429][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 81.579486][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 81.589911][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 81.602227][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 81.611686][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 81.622428][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 81.631562][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 81.642516][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 81.659282][ T4512] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 81.679683][ T21] cfg80211: failed to load regulatory.db [ 81.877971][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 81.885557][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 81.899417][ T4512] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 81.931661][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 81.948077][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 81.995570][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 82.004758][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 82.015688][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 82.024307][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 82.059843][ T4512] device veth0_vlan entered promiscuous mode [ 82.083877][ T4512] device veth1_vlan entered promiscuous mode [ 82.115430][ T4512] device veth0_macvtap entered promiscuous mode [ 82.123796][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 82.135485][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 82.144385][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 82.157034][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 82.170476][ T4512] device veth1_macvtap entered promiscuous mode [ 82.179897][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 82.194880][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 82.216468][ T4512] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 82.223853][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 82.234346][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 82.248131][ T4512] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 82.257981][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 82.277124][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 82.301012][ T4512] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.326202][ T4512] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.335448][ T4512] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.345460][ T13] Bluetooth: hci0: command 0x0409 tx timeout [ 82.366059][ T4512] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 82.734723][ T4605] [ 82.737100][ T4605] ====================================================== [ 82.744400][ T4605] WARNING: possible circular locking dependency detected [ 82.751436][ T4605] syzkaller #0 Not tainted [ 82.756186][ T4605] ------------------------------------------------------ [ 82.763499][ T4605] syz-executor.0/4605 is trying to acquire lock: [ 82.769856][ T4605] ffff88814d094170 (&journal->j_barrier){+.+.}-{3:3}, at: jbd2_journal_lock_updates+0x2d1/0x390 [ 82.780696][ T4605] [ 82.780696][ T4605] but task is already holding lock: [ 82.788460][ T4605] ffff88814d092bd8 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_change_inode_journal_flag+0x194/0x6b0 [ 82.800788][ T4605] [ 82.800788][ T4605] which lock already depends on the new lock. [ 82.800788][ T4605] [ 82.811839][ T4605] [ 82.811839][ T4605] the existing dependency chain (in reverse order) is: [ 82.821103][ T4605] [ 82.821103][ T4605] -> #4 (&sbi->s_writepages_rwsem){++++}-{0:0}: [ 82.829787][ T4605] percpu_down_write+0x52/0x2f0 [ 82.835399][ T4605] ext4_change_inode_journal_flag+0x194/0x6b0 [ 82.842019][ T4605] ext4_fileattr_set+0xe5a/0x1750 [ 82.847891][ T4605] vfs_fileattr_set+0x859/0xb10 [ 82.853297][ T4605] do_vfs_ioctl+0x186a/0x1ef0 [ 82.858611][ T4605] __se_sys_ioctl+0x83/0x170 [ 82.864062][ T4605] do_syscall_64+0x4c/0xa0 [ 82.869058][ T4605] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.875677][ T4605] [ 82.875677][ T4605] -> #3 (mapping.invalidate_lock){++++}-{3:3}: [ 82.884406][ T4605] down_write+0x38/0x60 [ 82.889821][ T4605] ext4_setattr+0xdb6/0x19e0 [ 82.895245][ T4605] notify_change+0xbcd/0xee0 [ 82.900809][ T4605] do_truncate+0x1ac/0x240 [ 82.906215][ T4605] do_sys_ftruncate+0x31b/0x3d0 [ 82.911727][ T4605] do_syscall_64+0x4c/0xa0 [ 82.916867][ T4605] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.923501][ T4605] [ 82.923501][ T4605] -> #2 (&sb->s_type->i_mutex_key#9){++++}-{3:3}: [ 82.932580][ T4605] down_read+0x44/0x2e0 [ 82.937389][ T4605] ext4_bmap+0x4d/0x3f0 [ 82.942186][ T4605] bmap+0xa2/0xd0 [ 82.946650][ T4605] jbd2_journal_flush+0x655/0xcc0 [ 82.952229][ T4605] ext4_ioctl+0x3100/0x3820 [ 82.957474][ T4605] __se_sys_ioctl+0xfa/0x170 [ 82.962789][ T4605] do_syscall_64+0x4c/0xa0 [ 82.967762][ T4605] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 82.974294][ T4605] [ 82.974294][ T4605] -> #1 (&journal->j_checkpoint_mutex){+.+.}-{3:3}: [ 82.983571][ T4605] __mutex_lock_common+0x1e3/0x2400 [ 82.989605][ T4605] mutex_lock_io_nested+0x43/0x60 [ 82.995362][ T4605] jbd2_journal_flush+0x284/0xcc0 [ 83.001123][ T4605] ext4_ioctl+0x3100/0x3820 [ 83.006264][ T4605] __se_sys_ioctl+0xfa/0x170 [ 83.011496][ T4605] do_syscall_64+0x4c/0xa0 [ 83.016545][ T4605] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.023462][ T4605] [ 83.023462][ T4605] -> #0 (&journal->j_barrier){+.+.}-{3:3}: [ 83.031490][ T4605] __lock_acquire+0x2c42/0x7d10 [ 83.036893][ T4605] lock_acquire+0x19e/0x400 [ 83.042050][ T4605] __mutex_lock_common+0x1e3/0x2400 [ 83.048282][ T4605] mutex_lock_nested+0x17/0x20 [ 83.053822][ T4605] jbd2_journal_lock_updates+0x2d1/0x390 [ 83.060100][ T4605] ext4_change_inode_journal_flag+0x19c/0x6b0 [ 83.067079][ T4605] ext4_fileattr_set+0xe5a/0x1750 [ 83.073199][ T4605] vfs_fileattr_set+0x859/0xb10 [ 83.078601][ T4605] do_vfs_ioctl+0x186a/0x1ef0 [ 83.083834][ T4605] __se_sys_ioctl+0x83/0x170 [ 83.089193][ T4605] do_syscall_64+0x4c/0xa0 [ 83.094254][ T4605] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.101141][ T4605] [ 83.101141][ T4605] other info that might help us debug this: [ 83.101141][ T4605] [ 83.111970][ T4605] Chain exists of: [ 83.111970][ T4605] &journal->j_barrier --> mapping.invalidate_lock --> &sbi->s_writepages_rwsem [ 83.111970][ T4605] [ 83.127520][ T4605] Possible unsafe locking scenario: [ 83.127520][ T4605] [ 83.135307][ T4605] CPU0 CPU1 [ 83.140785][ T4605] ---- ---- [ 83.146180][ T4605] lock(&sbi->s_writepages_rwsem); [ 83.151402][ T4605] lock(mapping.invalidate_lock); [ 83.159163][ T4605] lock(&sbi->s_writepages_rwsem); [ 83.167006][ T4605] lock(&journal->j_barrier); [ 83.172504][ T4605] [ 83.172504][ T4605] *** DEADLOCK *** [ 83.172504][ T4605] [ 83.180951][ T4605] 4 locks held by syz-executor.0/4605: [ 83.186694][ T4605] #0: ffff88814d090460 (sb_writers#5){.+.+}-{0:0}, at: mnt_want_write_file+0x5c/0x200 [ 83.196996][ T4605] #1: ffff8880740a8de8 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: vfs_fileattr_set+0x150/0xb10 [ 83.208027][ T4605] #2: ffff8880740a8f88 (mapping.invalidate_lock){++++}-{3:3}, at: ext4_change_inode_journal_flag+0x116/0x6b0 [ 83.220170][ T4605] #3: ffff88814d092bd8 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_change_inode_journal_flag+0x194/0x6b0 [ 83.232419][ T4605] [ 83.232419][ T4605] stack backtrace: [ 83.238461][ T4605] CPU: 1 PID: 4605 Comm: syz-executor.0 Not tainted syzkaller #0 [ 83.246595][ T4605] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 [ 83.256672][ T4605] Call Trace: [ 83.260158][ T4605] [ 83.263146][ T4605] dump_stack_lvl+0x188/0x250 [ 83.267860][ T4605] ? load_image+0x400/0x400 [ 83.272499][ T4605] ? show_regs_print_info+0x20/0x20 [ 83.278087][ T4605] ? print_circular_bug+0x12b/0x1a0 [ 83.283719][ T4605] check_noncircular+0x296/0x330 [ 83.288861][ T4605] ? add_chain_block+0x940/0x940 [ 83.294022][ T4605] ? add_chain_block+0x940/0x940 [ 83.299874][ T4605] ? lockdep_lock+0xf1/0x1f0 [ 83.304530][ T4605] ? mark_lock+0x94/0x320 [ 83.309262][ T4605] __lock_acquire+0x2c42/0x7d10 [ 83.314334][ T4605] ? verify_lock_unused+0x140/0x140 [ 83.319579][ T4605] ? verify_lock_unused+0x140/0x140 [ 83.324859][ T4605] ? verify_lock_unused+0x140/0x140 [ 83.330351][ T4605] ? __lock_acquire+0x28ac/0x7d10 [ 83.335589][ T4605] lock_acquire+0x19e/0x400 [ 83.340217][ T4605] ? jbd2_journal_lock_updates+0x2d1/0x390 [ 83.346242][ T4605] ? __might_sleep+0xf0/0xf0 [ 83.350999][ T4605] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 83.357284][ T4605] ? read_lock_is_recursive+0x10/0x10 [ 83.362788][ T4605] ? lock_chain_count+0x20/0x20 [ 83.367877][ T4605] ? _raw_spin_lock_irqsave+0x8b/0x100 [ 83.373856][ T4605] ? lockdep_hardirqs_off+0x70/0x100 [ 83.379271][ T4605] ? jbd2_journal_lock_updates+0x2d1/0x390 [ 83.385256][ T4605] __mutex_lock_common+0x1e3/0x2400 [ 83.390640][ T4605] ? jbd2_journal_lock_updates+0x2d1/0x390 [ 83.396657][ T4605] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 83.402853][ T4605] ? jbd2_journal_lock_updates+0x2c0/0x390 [ 83.408820][ T4605] ? mutex_lock_io_nested+0x60/0x60 [ 83.414162][ T4605] ? init_wait_entry+0xd0/0xd0 [ 83.418959][ T4605] ? do_raw_read_unlock+0x70/0x70 [ 83.424105][ T4605] ? rcu_sync_enter+0x22f/0x350 [ 83.428991][ T4605] mutex_lock_nested+0x17/0x20 [ 83.433988][ T4605] jbd2_journal_lock_updates+0x2d1/0x390 [ 83.439748][ T4605] ? jbd2_journal_wait_updates+0x270/0x270 [ 83.445673][ T4605] ? rwsem_write_trylock+0x135/0x1c0 [ 83.451651][ T4605] ? cpumask_next+0xb3/0xd0 [ 83.456303][ T4605] ? percpu_down_write+0x20d/0x2f0 [ 83.461457][ T4605] ext4_change_inode_journal_flag+0x19c/0x6b0 [ 83.467817][ T4605] ext4_fileattr_set+0xe5a/0x1750 [ 83.473012][ T4605] ? verify_lock_unused+0x140/0x140 [ 83.478957][ T4605] ? ext4_fileattr_get+0x200/0x200 [ 83.484362][ T4605] ? rwsem_write_trylock+0x135/0x1c0 [ 83.490017][ T4605] ? memset+0x1e/0x40 [ 83.494383][ T4605] ? fileattr_fill_flags+0x1cc/0x300 [ 83.500217][ T4605] ? fscrypt_prepare_setflags+0x5e/0x210 [ 83.506322][ T4605] vfs_fileattr_set+0x859/0xb10 [ 83.511217][ T4605] ? copy_fsxattr_to_user+0x230/0x230 [ 83.516999][ T4605] ? sb_start_write+0x112/0x1c0 [ 83.521911][ T4605] do_vfs_ioctl+0x186a/0x1ef0 [ 83.526623][ T4605] ? __ia32_compat_sys_ioctl+0x910/0x910 [ 83.532549][ T4605] ? rcu_lock_release+0x5/0x20 [ 83.537788][ T4605] ? __lock_acquire+0x7d10/0x7d10 [ 83.542941][ T4605] ? kfree+0xef/0x2a0 [ 83.546953][ T4605] ? tomoyo_path_number_perm+0x5b4/0x660 [ 83.552818][ T4605] ? verify_lock_unused+0x140/0x140 [ 83.558230][ T4605] ? tomoyo_check_path_acl+0x1c0/0x1c0 [ 83.564447][ T4605] ? bpf_lsm_file_ioctl+0x5/0x10 [ 83.569844][ T4605] ? security_file_ioctl+0x7c/0xa0 [ 83.575352][ T4605] __se_sys_ioctl+0x83/0x170 [ 83.580083][ T4605] do_syscall_64+0x4c/0xa0 [ 83.584532][ T4605] ? clear_bhb_loop+0x30/0x80 [ 83.589325][ T4605] ? clear_bhb_loop+0x30/0x80 [ 83.594215][ T4605] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 83.600246][ T4605] RIP: 0033:0x7f0a0f41c339 [ 83.604688][ T4605] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48 [ 83.624545][ T4605] RSP: 002b:00007f0a0e7ac0b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 83.633077][ T4605] RAX: ffffffffffffffda RBX: 00007f0a0f559f80 RCX: 00007f0a0f41c339 [ 83.641080][ T4605] RDX: 0000000020000180 RSI: 0000000040086602 RDI: 0000000000000004 [ 83.649079][ T4605] RBP: 00007f0a0f47d498 R08: 0000000000000000 R09: 0000000000000000 [ 83.657348][ T4605] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 83.666075][ T4605] R13: 000000000000000b R14: 00007f0a0f559f80 R15: 00007fff13bd0608 [ 83.674360][ T4605] [ 84.396746][ T1347] Bluetooth: hci0: command 0x041b tx timeout 2026/02/09 14:13:06 executed programs: 22 [ 86.476369][ T13] Bluetooth: hci0: command 0x040f tx timeout [ 88.556147][ T13] Bluetooth: hci0: command 0x0419 tx timeout 2026/02/09 14:13:11 executed programs: 117