[ 87.229950][ T1324] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.174' (ED25519) to the list of known hosts. 2026/02/09 14:30:26 ignoring optional flag "type"="gce" 2026/02/09 14:30:26 parsed 1 programs 2026/02/09 14:30:29 executed programs: 0 [ 92.480956][ T4453] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 92.652431][ T4514] chnl_net:caif_netlink_parms(): no params data found [ 92.700919][ T4514] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.708213][ T4514] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.716148][ T4514] device bridge_slave_0 entered promiscuous mode [ 92.724785][ T4514] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.732034][ T4514] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.739974][ T4514] device bridge_slave_1 entered promiscuous mode [ 92.765778][ T4514] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 92.777147][ T4514] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 92.802385][ T4514] team0: Port device team_slave_0 added [ 92.811259][ T4514] team0: Port device team_slave_1 added [ 92.831866][ T4514] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 92.838921][ T4514] 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. [ 92.865094][ T4514] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 92.877434][ T4514] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 92.884492][ T4514] 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. [ 92.910549][ T4514] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 92.942643][ T4514] device hsr_slave_0 entered promiscuous mode [ 92.949510][ T4514] device hsr_slave_1 entered promiscuous mode [ 93.526239][ T4514] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 93.537020][ T4514] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 93.550382][ T4514] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 93.560783][ T4514] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 93.596562][ T4514] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.603786][ T4514] bridge0: port 2(bridge_slave_1) entered forwarding state [ 93.611608][ T4514] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.618788][ T4514] bridge0: port 1(bridge_slave_0) entered forwarding state [ 93.638114][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 93.646271][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 93.701871][ T4514] 8021q: adding VLAN 0 to HW filter on device bond0 [ 93.726208][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 93.734572][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 93.748777][ T4514] 8021q: adding VLAN 0 to HW filter on device team0 [ 93.759667][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 93.769767][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 93.779379][ T155] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.786502][ T155] bridge0: port 1(bridge_slave_0) entered forwarding state [ 93.809779][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 93.819225][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 93.828158][ T155] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.835278][ T155] bridge0: port 2(bridge_slave_1) entered forwarding state [ 93.846000][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 93.856534][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 93.878231][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 93.891247][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 93.901389][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 93.912637][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 93.924145][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 93.933234][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 93.943849][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 93.952927][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 93.966966][ T4514] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 93.980646][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 94.123182][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 94.132126][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 94.146904][ T4514] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 94.172732][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 94.183504][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 94.207036][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 94.216394][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 94.229575][ T4514] device veth0_vlan entered promiscuous mode [ 94.239616][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 94.249649][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 94.263209][ T4514] device veth1_vlan entered promiscuous mode [ 94.289908][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 94.299944][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 94.309400][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 94.319178][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 94.331307][ T4514] device veth0_macvtap entered promiscuous mode [ 94.343592][ T4514] device veth1_macvtap entered promiscuous mode [ 94.366487][ T4514] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 94.375397][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 94.385333][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 94.394039][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 94.403949][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 94.418517][ T4514] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 94.426524][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 94.436338][ T155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 94.449449][ T4514] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.459667][ T4514] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.470091][ T4514] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.481119][ T4514] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.598386][ T1108] Bluetooth: hci0: command 0x0409 tx timeout [ 94.870233][ T4602] [ 94.872640][ T4602] ====================================================== [ 94.879700][ T4602] WARNING: possible circular locking dependency detected [ 94.886790][ T4602] syzkaller #0 Not tainted [ 94.891462][ T4602] ------------------------------------------------------ [ 94.898779][ T4602] syz-executor.0/4602 is trying to acquire lock: [ 94.905137][ T4602] ffff88814d2f6170 (&journal->j_barrier){+.+.}-{3:3}, at: jbd2_journal_lock_updates+0x2d1/0x390 [ 94.916147][ T4602] [ 94.916147][ T4602] but task is already holding lock: [ 94.923561][ T4602] ffff88814d2f4bd8 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_change_inode_journal_flag+0x194/0x6b0 [ 94.934924][ T4602] [ 94.934924][ T4602] which lock already depends on the new lock. [ 94.934924][ T4602] [ 94.945473][ T4602] [ 94.945473][ T4602] the existing dependency chain (in reverse order) is: [ 94.954637][ T4602] [ 94.954637][ T4602] -> #4 (&sbi->s_writepages_rwsem){++++}-{0:0}: [ 94.963097][ T4602] percpu_down_write+0x52/0x2f0 [ 94.968490][ T4602] ext4_change_inode_journal_flag+0x194/0x6b0 [ 94.975215][ T4602] ext4_fileattr_set+0xe5a/0x1750 [ 94.980788][ T4602] vfs_fileattr_set+0x859/0xb10 [ 94.986190][ T4602] do_vfs_ioctl+0x186a/0x1ef0 [ 94.991405][ T4602] __se_sys_ioctl+0x83/0x170 [ 94.996529][ T4602] do_syscall_64+0x4c/0xa0 [ 95.001495][ T4602] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 95.008019][ T4602] [ 95.008019][ T4602] -> #3 (mapping.invalidate_lock){++++}-{3:3}: [ 95.016607][ T4602] down_write+0x38/0x60 [ 95.021325][ T4602] ext4_setattr+0xdb6/0x19e0 [ 95.026465][ T4602] notify_change+0xbcd/0xee0 [ 95.031604][ T4602] do_truncate+0x1ac/0x240 [ 95.036563][ T4602] do_sys_ftruncate+0x31b/0x3d0 [ 95.041958][ T4602] do_syscall_64+0x4c/0xa0 [ 95.046912][ T4602] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 95.053346][ T4602] [ 95.053346][ T4602] -> #2 (&sb->s_type->i_mutex_key#9){++++}-{3:3}: [ 95.062087][ T4602] down_read+0x44/0x2e0 [ 95.066817][ T4602] ext4_bmap+0x4d/0x3f0 [ 95.071527][ T4602] bmap+0xa2/0xd0 [ 95.075716][ T4602] jbd2_journal_flush+0x655/0xcc0 [ 95.081318][ T4602] ext4_ioctl+0x3100/0x3820 [ 95.086376][ T4602] __se_sys_ioctl+0xfa/0x170 [ 95.091532][ T4602] do_syscall_64+0x4c/0xa0 [ 95.096503][ T4602] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 95.102955][ T4602] [ 95.102955][ T4602] -> #1 (&journal->j_checkpoint_mutex){+.+.}-{3:3}: [ 95.111770][ T4602] __mutex_lock_common+0x1e3/0x2400 [ 95.117739][ T4602] mutex_lock_io_nested+0x43/0x60 [ 95.123315][ T4602] jbd2_journal_flush+0x284/0xcc0 [ 95.129004][ T4602] ext4_ioctl+0x3100/0x3820 [ 95.134044][ T4602] __se_sys_ioctl+0xfa/0x170 [ 95.139177][ T4602] do_syscall_64+0x4c/0xa0 [ 95.144139][ T4602] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 95.150740][ T4602] [ 95.150740][ T4602] -> #0 (&journal->j_barrier){+.+.}-{3:3}: [ 95.158770][ T4602] __lock_acquire+0x2c42/0x7d10 [ 95.164164][ T4602] lock_acquire+0x19e/0x400 [ 95.169233][ T4602] __mutex_lock_common+0x1e3/0x2400 [ 95.174982][ T4602] mutex_lock_nested+0x17/0x20 [ 95.180320][ T4602] jbd2_journal_lock_updates+0x2d1/0x390 [ 95.186498][ T4602] ext4_change_inode_journal_flag+0x19c/0x6b0 [ 95.193104][ T4602] ext4_fileattr_set+0xe5a/0x1750 [ 95.198662][ T4602] vfs_fileattr_set+0x859/0xb10 [ 95.204051][ T4602] do_vfs_ioctl+0x186a/0x1ef0 [ 95.209348][ T4602] __se_sys_ioctl+0x83/0x170 [ 95.214471][ T4602] do_syscall_64+0x4c/0xa0 [ 95.219420][ T4602] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 95.225850][ T4602] [ 95.225850][ T4602] other info that might help us debug this: [ 95.225850][ T4602] [ 95.236090][ T4602] Chain exists of: [ 95.236090][ T4602] &journal->j_barrier --> mapping.invalidate_lock --> &sbi->s_writepages_rwsem [ 95.236090][ T4602] [ 95.250963][ T4602] Possible unsafe locking scenario: [ 95.250963][ T4602] [ 95.258422][ T4602] CPU0 CPU1 [ 95.263802][ T4602] ---- ---- [ 95.269262][ T4602] lock(&sbi->s_writepages_rwsem); [ 95.274486][ T4602] lock(mapping.invalidate_lock); [ 95.282237][ T4602] lock(&sbi->s_writepages_rwsem); [ 95.290249][ T4602] lock(&journal->j_barrier); [ 95.295033][ T4602] [ 95.295033][ T4602] *** DEADLOCK *** [ 95.295033][ T4602] [ 95.303202][ T4602] 4 locks held by syz-executor.0/4602: [ 95.308758][ T4602] #0: ffff88814d2f2460 (sb_writers#5){.+.+}-{0:0}, at: mnt_want_write_file+0x5c/0x200 [ 95.318456][ T4602] #1: ffff88806f4549b8 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: vfs_fileattr_set+0x150/0xb10 [ 95.329395][ T4602] #2: ffff88806f454b58 (mapping.invalidate_lock){++++}-{3:3}, at: ext4_change_inode_journal_flag+0x116/0x6b0 [ 95.341100][ T4602] #3: ffff88814d2f4bd8 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_change_inode_journal_flag+0x194/0x6b0 [ 95.352868][ T4602] [ 95.352868][ T4602] stack backtrace: [ 95.358986][ T4602] CPU: 1 PID: 4602 Comm: syz-executor.0 Not tainted syzkaller #0 [ 95.366904][ T4602] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 [ 95.377076][ T4602] Call Trace: [ 95.380378][ T4602] [ 95.383326][ T4602] dump_stack_lvl+0x188/0x250 [ 95.388027][ T4602] ? load_image+0x400/0x400 [ 95.392557][ T4602] ? show_regs_print_info+0x20/0x20 [ 95.397883][ T4602] ? print_circular_bug+0x12b/0x1a0 [ 95.403099][ T4602] check_noncircular+0x296/0x330 [ 95.408055][ T4602] ? add_chain_block+0x940/0x940 [ 95.413011][ T4602] ? add_chain_block+0x940/0x940 [ 95.417960][ T4602] ? lockdep_lock+0xf1/0x1f0 [ 95.422573][ T4602] ? mark_lock+0x94/0x320 [ 95.426919][ T4602] __lock_acquire+0x2c42/0x7d10 [ 95.431797][ T4602] ? verify_lock_unused+0x140/0x140 [ 95.437016][ T4602] ? verify_lock_unused+0x140/0x140 [ 95.442236][ T4602] ? verify_lock_unused+0x140/0x140 [ 95.447469][ T4602] ? __lock_acquire+0x28ac/0x7d10 [ 95.452517][ T4602] lock_acquire+0x19e/0x400 [ 95.457039][ T4602] ? jbd2_journal_lock_updates+0x2d1/0x390 [ 95.462958][ T4602] ? __might_sleep+0xf0/0xf0 [ 95.467564][ T4602] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 95.473599][ T4602] ? read_lock_is_recursive+0x10/0x10 [ 95.479181][ T4602] ? lock_chain_count+0x20/0x20 [ 95.484051][ T4602] ? _raw_spin_lock_irqsave+0x8b/0x100 [ 95.489525][ T4602] ? lockdep_hardirqs_off+0x70/0x100 [ 95.494825][ T4602] ? jbd2_journal_lock_updates+0x2d1/0x390 [ 95.500650][ T4602] __mutex_lock_common+0x1e3/0x2400 [ 95.505865][ T4602] ? jbd2_journal_lock_updates+0x2d1/0x390 [ 95.511712][ T4602] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 95.517657][ T4602] ? jbd2_journal_lock_updates+0x2c0/0x390 [ 95.523509][ T4602] ? mutex_lock_io_nested+0x60/0x60 [ 95.528867][ T4602] ? init_wait_entry+0xd0/0xd0 [ 95.533662][ T4602] ? do_raw_read_unlock+0x70/0x70 [ 95.538704][ T4602] ? rcu_sync_enter+0x22f/0x350 [ 95.543576][ T4602] mutex_lock_nested+0x17/0x20 [ 95.548370][ T4602] jbd2_journal_lock_updates+0x2d1/0x390 [ 95.554024][ T4602] ? jbd2_journal_wait_updates+0x270/0x270 [ 95.559869][ T4602] ? rwsem_write_trylock+0x135/0x1c0 [ 95.565216][ T4602] ? cpumask_next+0xb3/0xd0 [ 95.569747][ T4602] ? percpu_down_write+0x20d/0x2f0 [ 95.574978][ T4602] ext4_change_inode_journal_flag+0x19c/0x6b0 [ 95.581275][ T4602] ext4_fileattr_set+0xe5a/0x1750 [ 95.586325][ T4602] ? verify_lock_unused+0x140/0x140 [ 95.591660][ T4602] ? ext4_fileattr_get+0x200/0x200 [ 95.596795][ T4602] ? rwsem_write_trylock+0x135/0x1c0 [ 95.602098][ T4602] ? memset+0x1e/0x40 [ 95.606199][ T4602] ? fileattr_fill_flags+0x1cc/0x300 [ 95.611503][ T4602] ? fscrypt_prepare_setflags+0x5e/0x210 [ 95.617160][ T4602] vfs_fileattr_set+0x859/0xb10 [ 95.622034][ T4602] ? copy_fsxattr_to_user+0x230/0x230 [ 95.627426][ T4602] ? sb_start_write+0x112/0x1c0 [ 95.632304][ T4602] do_vfs_ioctl+0x186a/0x1ef0 [ 95.637000][ T4602] ? __ia32_compat_sys_ioctl+0x910/0x910 [ 95.642651][ T4602] ? rcu_lock_release+0x5/0x20 [ 95.647444][ T4602] ? __lock_acquire+0x7d10/0x7d10 [ 95.652490][ T4602] ? kfree+0xef/0x2a0 [ 95.656492][ T4602] ? tomoyo_path_number_perm+0x5b4/0x660 [ 95.662298][ T4602] ? verify_lock_unused+0x140/0x140 [ 95.667692][ T4602] ? tomoyo_check_path_acl+0x1c0/0x1c0 [ 95.673281][ T4602] ? bpf_lsm_file_ioctl+0x5/0x10 [ 95.678246][ T4602] ? security_file_ioctl+0x7c/0xa0 [ 95.683379][ T4602] __se_sys_ioctl+0x83/0x170 [ 95.687984][ T4602] do_syscall_64+0x4c/0xa0 [ 95.692453][ T4602] ? clear_bhb_loop+0x30/0x80 [ 95.697294][ T4602] ? clear_bhb_loop+0x30/0x80 [ 95.702015][ T4602] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 95.708045][ T4602] RIP: 0033:0x7ff6c69c9339 [ 95.712571][ T4602] 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 [ 95.732418][ T4602] RSP: 002b:00007ff6c5d590b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 95.740860][ T4602] RAX: ffffffffffffffda RBX: 00007ff6c6b06f80 RCX: 00007ff6c69c9339 [ 95.748946][ T4602] RDX: 0000000020000000 RSI: 0000000040086602 RDI: 0000000000000005 [ 95.757054][ T4602] RBP: 00007ff6c6a2a498 R08: 0000000000000000 R09: 0000000000000000 [ 95.765051][ T4602] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 95.773040][ T4602] R13: 000000000000000b R14: 00007ff6c6b06f80 R15: 00007ffd958f9038 [ 95.781048][ T4602] [ 96.668011][ T1108] Bluetooth: hci0: command 0x041b tx timeout 2026/02/09 14:30:34 executed programs: 25 [ 98.747322][ T1108] Bluetooth: hci0: command 0x040f tx timeout [ 100.837456][ T1108] Bluetooth: hci0: command 0x0419 tx timeout 2026/02/09 14:30:39 executed programs: 103