[ 61.320195][ T1359] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.341423][ T1359] device veth1_macvtap left promiscuous mode [ 61.348008][ T1359] device veth0_macvtap left promiscuous mode [ 61.354494][ T1359] device veth1_vlan left promiscuous mode [ 61.360494][ T1359] device veth0_vlan left promiscuous mode [ 61.480132][ T1359] team0 (unregistering): Port device team_slave_1 removed [ 61.495499][ T1359] team0 (unregistering): Port device team_slave_0 removed [ 61.509349][ T1359] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 61.521911][ T1359] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 61.565380][ T1359] bond0 (unregistering): Released all slaves [ 71.354903][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.361438][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 Warning: Permanently added '10.128.1.236' (ED25519) to the list of known hosts. 2025/09/11 22:18:48 ignoring optional flag "type"="gce" 2025/09/11 22:18:49 parsed 1 programs 2025/09/11 22:18:50 executed programs: 0 [ 75.441933][ T4457] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 75.565904][ T4498] chnl_net:caif_netlink_parms(): no params data found [ 75.601474][ T4498] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.608809][ T4498] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.616664][ T4498] device bridge_slave_0 entered promiscuous mode [ 75.624454][ T4498] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.631640][ T4498] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.639473][ T4498] device bridge_slave_1 entered promiscuous mode [ 75.658094][ T4498] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.669181][ T4498] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.689500][ T4498] team0: Port device team_slave_0 added [ 75.696974][ T4498] team0: Port device team_slave_1 added [ 75.715792][ T4498] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.723109][ T4498] 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. [ 75.749896][ T4498] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.761881][ T4498] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.769092][ T4498] 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. [ 75.794998][ T4498] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.820942][ T4498] device hsr_slave_0 entered promiscuous mode [ 75.827964][ T4498] device hsr_slave_1 entered promiscuous mode [ 76.333749][ T4498] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 76.344862][ T4498] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.356385][ T4498] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.366047][ T4498] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.390510][ T4498] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.397640][ T4498] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.405046][ T4498] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.412157][ T4498] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.461926][ T4498] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.474990][ T1106] cfg80211: failed to load regulatory.db [ 76.483493][ T4498] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.490553][ T1359] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.501672][ T1359] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.519790][ T1359] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.529210][ T1359] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 76.563778][ T1359] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 76.579440][ T1359] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.588167][ T1359] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.595615][ T1359] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.606446][ T1359] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 76.615926][ T1359] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.625833][ T1359] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.633019][ T1359] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.641810][ T1359] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 76.664987][ T1359] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 76.674253][ T1359] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 76.684715][ T1359] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.696897][ T1359] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 76.707449][ T1359] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.716528][ T1359] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 76.732679][ T1359] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.754174][ T4498] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 76.766856][ T4498] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.784275][ T1359] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.797376][ T1359] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 76.825497][ T1359] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.027722][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 77.042230][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 77.054360][ T4498] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.080129][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 77.090604][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 77.111921][ T4498] device veth0_vlan entered promiscuous mode [ 77.120093][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 77.129076][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 77.138670][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 77.148708][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 77.160136][ T4498] device veth1_vlan entered promiscuous mode [ 77.183919][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.202589][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 77.211953][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 77.222889][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 77.237259][ T4498] device veth0_macvtap entered promiscuous mode [ 77.248588][ T4498] device veth1_macvtap entered promiscuous mode [ 77.266481][ T4498] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.276161][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 77.285362][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 77.295586][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 77.304727][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 77.317425][ T4498] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 77.327150][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 77.337838][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 77.349016][ T4498] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.360996][ T4498] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.370571][ T4498] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.381022][ T4498] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.513190][ T21] Bluetooth: hci0: command 0x0409 tx timeout [ 77.531821][ T4589] [ 77.534172][ T4589] ====================================================== [ 77.541183][ T4589] WARNING: possible circular locking dependency detected [ 77.548213][ T4589] syzkaller #0 Not tainted [ 77.552711][ T4589] ------------------------------------------------------ [ 77.559721][ T4589] syz-executor.0/4589 is trying to acquire lock: [ 77.566041][ T4589] ffff888023a183f0 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: ext4_bmap+0x4d/0x3f0 [ 77.575639][ T4589] [ 77.575639][ T4589] but task is already holding lock: [ 77.583006][ T4589] ffff88814ce903f8 (&journal->j_checkpoint_mutex){+.+.}-{3:3}, at: jbd2_journal_flush+0x316/0xca0 [ 77.593634][ T4589] [ 77.593634][ T4589] which lock already depends on the new lock. [ 77.593634][ T4589] [ 77.604045][ T4589] [ 77.604045][ T4589] the existing dependency chain (in reverse order) is: [ 77.613068][ T4589] [ 77.613068][ T4589] -> #3 (&journal->j_checkpoint_mutex){+.+.}-{3:3}: [ 77.621845][ T4589] __mutex_lock_common+0x1eb/0x2390 [ 77.627590][ T4589] mutex_lock_io_nested+0x43/0x60 [ 77.633231][ T4589] jbd2_journal_flush+0x287/0xca0 [ 77.638803][ T4589] ext4_ioctl+0x2e93/0x3590 [ 77.643864][ T4589] __se_sys_ioctl+0xfa/0x170 [ 77.648976][ T4589] do_syscall_64+0x4c/0xa0 [ 77.653916][ T4589] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 77.660431][ T4589] [ 77.660431][ T4589] -> #2 (&journal->j_barrier){+.+.}-{3:3}: [ 77.668467][ T4589] __mutex_lock_common+0x1eb/0x2390 [ 77.674235][ T4589] mutex_lock_nested+0x17/0x20 [ 77.679535][ T4589] jbd2_journal_lock_updates+0x2ba/0x380 [ 77.685699][ T4589] ext4_change_inode_journal_flag+0x19c/0x6b0 [ 77.692292][ T4589] ext4_fileattr_set+0xddc/0x16a0 [ 77.697841][ T4589] vfs_fileattr_set+0x842/0xaf0 [ 77.703227][ T4589] do_vfs_ioctl+0x1767/0x1de0 [ 77.708438][ T4589] __se_sys_ioctl+0x83/0x170 [ 77.713654][ T4589] do_syscall_64+0x4c/0xa0 [ 77.718597][ T4589] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 77.725111][ T4589] [ 77.725111][ T4589] -> #1 (&sbi->s_writepages_rwsem){++++}-{0:0}: [ 77.733539][ T4589] percpu_down_write+0x52/0x2f0 [ 77.738914][ T4589] ext4_ind_migrate+0x259/0x910 [ 77.744317][ T4589] ext4_fileattr_set+0xece/0x16a0 [ 77.749870][ T4589] vfs_fileattr_set+0x842/0xaf0 [ 77.755250][ T4589] do_vfs_ioctl+0x1767/0x1de0 [ 77.760449][ T4589] __se_sys_ioctl+0x83/0x170 [ 77.765573][ T4589] do_syscall_64+0x4c/0xa0 [ 77.770512][ T4589] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 77.776934][ T4589] [ 77.776934][ T4589] -> #0 (&sb->s_type->i_mutex_key#9){++++}-{3:3}: [ 77.785540][ T4589] __lock_acquire+0x2c33/0x7c60 [ 77.790918][ T4589] lock_acquire+0x197/0x3f0 [ 77.795985][ T4589] down_read+0x44/0x2e0 [ 77.800732][ T4589] ext4_bmap+0x4d/0x3f0 [ 77.805413][ T4589] bmap+0xa2/0xd0 [ 77.809608][ T4589] jbd2_journal_flush+0x648/0xca0 [ 77.815161][ T4589] ext4_ioctl+0x2e93/0x3590 [ 77.820203][ T4589] __se_sys_ioctl+0xfa/0x170 [ 77.825423][ T4589] do_syscall_64+0x4c/0xa0 [ 77.830540][ T4589] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 77.836961][ T4589] [ 77.836961][ T4589] other info that might help us debug this: [ 77.836961][ T4589] [ 77.847315][ T4589] Chain exists of: [ 77.847315][ T4589] &sb->s_type->i_mutex_key#9 --> &journal->j_barrier --> &journal->j_checkpoint_mutex [ 77.847315][ T4589] [ 77.862801][ T4589] Possible unsafe locking scenario: [ 77.862801][ T4589] [ 77.870339][ T4589] CPU0 CPU1 [ 77.875710][ T4589] ---- ---- [ 77.881076][ T4589] lock(&journal->j_checkpoint_mutex); [ 77.886710][ T4589] lock(&journal->j_barrier); [ 77.894002][ T4589] lock(&journal->j_checkpoint_mutex); [ 77.902086][ T4589] lock(&sb->s_type->i_mutex_key#9); [ 77.907468][ T4589] [ 77.907468][ T4589] *** DEADLOCK *** [ 77.907468][ T4589] [ 77.915620][ T4589] 2 locks held by syz-executor.0/4589: [ 77.921159][ T4589] #0: ffff88814ce90170 (&journal->j_barrier){+.+.}-{3:3}, at: jbd2_journal_lock_updates+0x2ba/0x380 [ 77.932054][ T4589] #1: ffff88814ce903f8 (&journal->j_checkpoint_mutex){+.+.}-{3:3}, at: jbd2_journal_flush+0x316/0xca0 [ 77.943204][ T4589] [ 77.943204][ T4589] stack backtrace: [ 77.949105][ T4589] CPU: 1 PID: 4589 Comm: syz-executor.0 Not tainted syzkaller #0 [ 77.956826][ T4589] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 77.966895][ T4589] Call Trace: [ 77.970262][ T4589] [ 77.973192][ T4589] dump_stack_lvl+0x168/0x230 [ 77.977876][ T4589] ? load_image+0x3b0/0x3b0 [ 77.982393][ T4589] ? show_regs_print_info+0x20/0x20 [ 77.987597][ T4589] ? print_circular_bug+0x12b/0x1a0 [ 77.992900][ T4589] check_noncircular+0x274/0x310 [ 77.997942][ T4589] ? add_chain_block+0x940/0x940 [ 78.002975][ T4589] ? lockdep_lock+0xdc/0x1e0 [ 78.007586][ T4589] ? mark_lock+0x94/0x320 [ 78.011925][ T4589] __lock_acquire+0x2c33/0x7c60 [ 78.016786][ T4589] ? _raw_spin_lock_irqsave+0xb0/0xf0 [ 78.022181][ T4589] ? verify_lock_unused+0x140/0x140 [ 78.027485][ T4589] ? _raw_spin_unlock_irqrestore+0x82/0x100 [ 78.033476][ T4589] ? lockdep_hardirqs_on+0x94/0x140 [ 78.038683][ T4589] ? verify_lock_unused+0x140/0x140 [ 78.043892][ T4589] ? schedule+0x132/0x1e0 [ 78.048231][ T4589] ? io_schedule+0x7c/0xd0 [ 78.052659][ T4589] lock_acquire+0x197/0x3f0 [ 78.057168][ T4589] ? ext4_bmap+0x4d/0x3f0 [ 78.061517][ T4589] ? __might_sleep+0xf0/0xf0 [ 78.066111][ T4589] ? read_lock_is_recursive+0x10/0x10 [ 78.071496][ T4589] ? jbd2_journal_flush+0x372/0xca0 [ 78.076707][ T4589] ? ext4_journalled_write_end+0xf30/0xf30 [ 78.082617][ T4589] down_read+0x44/0x2e0 [ 78.086785][ T4589] ? ext4_bmap+0x4d/0x3f0 [ 78.091117][ T4589] ? ext4_journalled_write_end+0xf30/0xf30 [ 78.096928][ T4589] ext4_bmap+0x4d/0x3f0 [ 78.101614][ T4589] ? ext4_journalled_write_end+0xf30/0xf30 [ 78.107428][ T4589] bmap+0xa2/0xd0 [ 78.111066][ T4589] jbd2_journal_flush+0x648/0xca0 [ 78.116111][ T4589] ? __bpf_trace_jbd2_shrink_checkpoint_list+0x50/0x50 [ 78.122965][ T4589] ? bpf_lsm_capable+0x5/0x10 [ 78.127669][ T4589] ? security_capable+0x85/0xb0 [ 78.132612][ T4589] ext4_ioctl+0x2e93/0x3590 [ 78.137123][ T4589] ? ext4_fileattr_set+0x16a0/0x16a0 [ 78.142413][ T4589] ? __ia32_compat_sys_ioctl+0x850/0x850 [ 78.148052][ T4589] ? rcu_lock_release+0x5/0x20 [ 78.152865][ T4589] ? __lock_acquire+0x7c60/0x7c60 [ 78.157922][ T4589] ? kfree+0xef/0x2a0 [ 78.161914][ T4589] ? tomoyo_path_number_perm+0x4d4/0x5d0 [ 78.167675][ T4589] ? verify_lock_unused+0x140/0x140 [ 78.172884][ T4589] ? tomoyo_check_path_acl+0x1c0/0x1c0 [ 78.178581][ T4589] ? bpf_lsm_file_ioctl+0x5/0x10 [ 78.183522][ T4589] ? security_file_ioctl+0x7c/0xa0 [ 78.188816][ T4589] ? ext4_fileattr_set+0x16a0/0x16a0 [ 78.194120][ T4589] __se_sys_ioctl+0xfa/0x170 [ 78.198734][ T4589] do_syscall_64+0x4c/0xa0 [ 78.203179][ T4589] ? clear_bhb_loop+0x30/0x80 [ 78.207873][ T4589] ? clear_bhb_loop+0x30/0x80 [ 78.212654][ T4589] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 78.218562][ T4589] RIP: 0033:0x7fe5b50e8ea9 [ 78.222982][ T4589] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 [ 78.242677][ T4589] RSP: 002b:00007fe5b44690c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 78.251097][ T4589] RAX: ffffffffffffffda RBX: 00007fe5b5216f80 RCX: 00007fe5b50e8ea9 [ 78.259085][ T4589] RDX: 0000000020000000 RSI: 000000004004662b RDI: 0000000000000004 [ 78.267091][ T4589] RBP: 00007fe5b51354a4 R08: 0000000000000000 R09: 0000000000000000 [ 78.275071][ T4589] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 78.283044][ T4589] R13: 000000000000000b R14: 00007fe5b5216f80 R15: 00007ffc427d08d8 [ 78.291111][ T4589] [ 79.595650][ T21] Bluetooth: hci0: command 0x041b tx timeout 2025/09/11 22:18:55 executed programs: 34 [ 81.672068][ T21] Bluetooth: hci0: command 0x040f tx timeout [ 83.752069][ T1106] Bluetooth: hci0: command 0x0419 tx timeout 2025/09/11 22:19:00 executed programs: 154