Warning: Permanently added '10.128.1.188' (ED25519) to the list of known hosts. 1970/01/01 00:00:48 ignoring optional flag "type"="gce" 1970/01/01 00:00:48 parsed 1 programs 1970/01/01 00:00:48 executed programs: 0 [ 48.444116][ T4274] chnl_net:caif_netlink_parms(): no params data found [ 48.462993][ T4274] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.465028][ T4274] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.466721][ T4274] device bridge_slave_0 entered promiscuous mode [ 48.468811][ T4274] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.469964][ T4274] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.471545][ T4274] device bridge_slave_1 entered promiscuous mode [ 48.483141][ T4274] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 48.488079][ T4274] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 48.497758][ T4274] team0: Port device team_slave_0 added [ 48.499728][ T4274] team0: Port device team_slave_1 added [ 48.508719][ T4274] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 48.510056][ T4274] 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. [ 48.514986][ T4274] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 48.517444][ T4274] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 48.518591][ T4274] 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. [ 48.522977][ T4274] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 48.565014][ T4274] device hsr_slave_0 entered promiscuous mode [ 48.593915][ T4274] device hsr_slave_1 entered promiscuous mode [ 49.124686][ T4274] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 49.165210][ T4274] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 49.205341][ T4274] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 49.245071][ T4274] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 49.290307][ T4274] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.291637][ T4274] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.293053][ T4274] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.294369][ T4274] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.311978][ T4274] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.316706][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.321049][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.322561][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.325243][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 49.329429][ T4274] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.334887][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 49.336581][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.337746][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.339207][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 49.340993][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.342161][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.348662][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 49.350932][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 49.352512][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 49.358910][ T4274] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 49.360686][ T4274] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 49.366115][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 49.368049][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 49.369766][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 49.409117][ T4274] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 49.416522][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 49.417903][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 49.420625][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 49.428015][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 49.429761][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 49.431275][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 49.433616][ T4274] device veth0_vlan entered promiscuous mode [ 49.438199][ T4274] device veth1_vlan entered promiscuous mode [ 49.449237][ T4274] device veth0_macvtap entered promiscuous mode [ 49.451847][ T4274] device veth1_macvtap entered promiscuous mode [ 49.454055][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 49.455701][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 49.457333][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 49.459496][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 49.470990][ T4274] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 49.472257][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 49.474188][ T353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 49.478350][ T4274] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 49.479642][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 49.481338][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 49.485257][ T4274] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.486850][ T4274] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.488334][ T4274] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.489833][ T4274] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.517912][ T4406] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 49.685152][ T4406] [ 49.687324][ T4406] ====================================================== [ 49.688602][ T4406] WARNING: possible circular locking dependency detected [ 49.689883][ T4406] syzkaller #0 Not tainted [ 49.690678][ T4406] ------------------------------------------------------ [ 49.691854][ T4406] syz-executor.0/4406 is trying to acquire lock: [ 49.692971][ T4406] ffff0000d4f4c170 (&journal->j_barrier){+.+.}-{3:3}, at: jbd2_journal_lock_updates+0x260/0x318 [ 49.694715][ T4406] [ 49.694715][ T4406] but task is already holding lock: [ 49.695868][ T4406] ffff0000d4f48c58 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_change_inode_journal_flag+0x150/0x630 [ 49.697887][ T4406] [ 49.697887][ T4406] which lock already depends on the new lock. [ 49.697887][ T4406] [ 49.699598][ T4406] [ 49.699598][ T4406] the existing dependency chain (in reverse order) is: [ 49.701172][ T4406] [ 49.701172][ T4406] -> #4 (&sbi->s_writepages_rwsem){++++}-{0:0}: [ 49.702618][ T4406] percpu_down_write+0xcc/0x39c [ 49.703531][ T4406] ext4_change_inode_journal_flag+0x150/0x630 [ 49.704700][ T4406] ext4_fileattr_set+0xbd8/0x133c [ 49.705712][ T4406] vfs_fileattr_set+0x67c/0x90c [ 49.706667][ T4406] do_vfs_ioctl+0x1c88/0x23f0 [ 49.707573][ T4406] __arm64_sys_ioctl+0xe4/0x1c8 [ 49.708553][ T4406] invoke_syscall+0x98/0x2b0 [ 49.709510][ T4406] el0_svc_common+0x138/0x258 [ 49.710383][ T4406] do_el0_svc+0x58/0x13c [ 49.711206][ T4406] el0_svc+0x78/0x1d0 [ 49.711994][ T4406] el0t_64_sync_handler+0xcc/0xe4 [ 49.712946][ T4406] el0t_64_sync+0x1a0/0x1a4 [ 49.713815][ T4406] [ 49.713815][ T4406] -> #3 (mapping.invalidate_lock){++++}-{3:3}: [ 49.715261][ T4406] down_write+0xbc/0x12c [ 49.716082][ T4406] ext4_setattr+0xb30/0x1518 [ 49.717090][ T4406] notify_change+0xa08/0xcd8 [ 49.717938][ T4406] do_truncate+0x188/0x20c [ 49.718798][ T4406] do_sys_ftruncate+0x284/0x31c [ 49.719770][ T4406] __arm64_sys_ftruncate+0x60/0x74 [ 49.720772][ T4406] invoke_syscall+0x98/0x2b0 [ 49.721753][ T4406] el0_svc_common+0x138/0x258 [ 49.722736][ T4406] do_el0_svc+0x58/0x13c [ 49.723631][ T4406] el0_svc+0x78/0x1d0 [ 49.724461][ T4406] el0t_64_sync_handler+0xcc/0xe4 [ 49.725489][ T4406] el0t_64_sync+0x1a0/0x1a4 [ 49.726388][ T4406] [ 49.726388][ T4406] -> #2 (&sb->s_type->i_mutex_key#9){++++}-{3:3}: [ 49.727886][ T4406] down_read+0xc0/0x38c [ 49.728648][ T4406] ext4_bmap+0x54/0x360 [ 49.729467][ T4406] bmap+0xa8/0xe8 [ 49.730166][ T4406] jbd2_journal_flush+0x600/0xa28 [ 49.731027][ T4406] ext4_ioctl+0x2e0c/0x3750 [ 49.731855][ T4406] __arm64_sys_ioctl+0x14c/0x1c8 [ 49.732713][ T4406] invoke_syscall+0x98/0x2b0 [ 49.733659][ T4406] el0_svc_common+0x138/0x258 [ 49.734586][ T4406] do_el0_svc+0x58/0x13c [ 49.735335][ T4406] el0_svc+0x78/0x1d0 [ 49.736140][ T4406] el0t_64_sync_handler+0xcc/0xe4 [ 49.737150][ T4406] el0t_64_sync+0x1a0/0x1a4 [ 49.738066][ T4406] [ 49.738066][ T4406] -> #1 (&journal->j_checkpoint_mutex){+.+.}-{3:3}: [ 49.739581][ T4406] __mutex_lock_common+0x194/0x1f14 [ 49.740535][ T4406] mutex_lock_io_nested+0xcc/0x12c [ 49.741548][ T4406] jbd2_journal_flush+0x1e8/0xa28 [ 49.742486][ T4406] ext4_ioctl+0x2e0c/0x3750 [ 49.743401][ T4406] __arm64_sys_ioctl+0x14c/0x1c8 [ 49.744343][ T4406] invoke_syscall+0x98/0x2b0 [ 49.745267][ T4406] el0_svc_common+0x138/0x258 [ 49.746072][ T4406] do_el0_svc+0x58/0x13c [ 49.746874][ T4406] el0_svc+0x78/0x1d0 [ 49.747626][ T4406] el0t_64_sync_handler+0xcc/0xe4 [ 49.748597][ T4406] el0t_64_sync+0x1a0/0x1a4 [ 49.749466][ T4406] [ 49.749466][ T4406] -> #0 (&journal->j_barrier){+.+.}-{3:3}: [ 49.750861][ T4406] __lock_acquire+0x2870/0x67ec [ 49.751726][ T4406] lock_acquire+0x1f4/0x618 [ 49.752580][ T4406] __mutex_lock_common+0x194/0x1f14 [ 49.753592][ T4406] mutex_lock_nested+0xac/0x11c [ 49.754587][ T4406] jbd2_journal_lock_updates+0x260/0x318 [ 49.755639][ T4406] ext4_change_inode_journal_flag+0x158/0x630 [ 49.756821][ T4406] ext4_fileattr_set+0xbd8/0x133c [ 49.757838][ T4406] vfs_fileattr_set+0x67c/0x90c [ 49.758782][ T4406] do_vfs_ioctl+0x1c88/0x23f0 [ 49.759752][ T4406] __arm64_sys_ioctl+0xe4/0x1c8 [ 49.760805][ T4406] invoke_syscall+0x98/0x2b0 [ 49.761744][ T4406] el0_svc_common+0x138/0x258 [ 49.762614][ T4406] do_el0_svc+0x58/0x13c [ 49.763438][ T4406] el0_svc+0x78/0x1d0 [ 49.764266][ T4406] el0t_64_sync_handler+0xcc/0xe4 [ 49.765222][ T4406] el0t_64_sync+0x1a0/0x1a4 [ 49.766072][ T4406] [ 49.766072][ T4406] other info that might help us debug this: [ 49.766072][ T4406] [ 49.767943][ T4406] Chain exists of: [ 49.767943][ T4406] &journal->j_barrier --> mapping.invalidate_lock --> &sbi->s_writepages_rwsem [ 49.767943][ T4406] [ 49.770457][ T4406] Possible unsafe locking scenario: [ 49.770457][ T4406] [ 49.771716][ T4406] CPU0 CPU1 [ 49.772608][ T4406] ---- ---- [ 49.773556][ T4406] lock(&sbi->s_writepages_rwsem); [ 49.774461][ T4406] lock(mapping.invalidate_lock); [ 49.775814][ T4406] lock(&sbi->s_writepages_rwsem); [ 49.777146][ T4406] lock(&journal->j_barrier); [ 49.778078][ T4406] [ 49.778078][ T4406] *** DEADLOCK *** [ 49.778078][ T4406] [ 49.779463][ T4406] 4 locks held by syz-executor.0/4406: [ 49.780494][ T4406] #0: ffff0000d4f46460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write_file+0x64/0x1e8 [ 49.782198][ T4406] #1: ffff0000df7949b8 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: vfs_fileattr_set+0x110/0x90c [ 49.784069][ T4406] #2: ffff0000df794b58 (mapping.invalidate_lock){++++}-{3:3}, at: ext4_change_inode_journal_flag+0xf0/0x630 [ 49.786136][ T4406] #3: ffff0000d4f48c58 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_change_inode_journal_flag+0x150/0x630 [ 49.788179][ T4406] [ 49.788179][ T4406] stack backtrace: [ 49.789207][ T4406] CPU: 0 PID: 4406 Comm: syz-executor.0 Not tainted syzkaller #0 [ 49.790561][ T4406] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 49.792345][ T4406] Call trace: [ 49.792899][ T4406] dump_backtrace+0x0/0x458 [ 49.793705][ T4406] show_stack+0x2c/0x3c [ 49.794392][ T4406] __dump_stack+0x30/0x40 [ 49.795117][ T4406] dump_stack_lvl+0xf4/0x15c [ 49.795881][ T4406] dump_stack+0x1c/0x5c [ 49.796649][ T4406] print_circular_bug+0x148/0x1b0 [ 49.797567][ T4406] check_noncircular+0x264/0x2f8 [ 49.798464][ T4406] __lock_acquire+0x2870/0x67ec [ 49.799346][ T4406] lock_acquire+0x1f4/0x618 [ 49.800177][ T4406] __mutex_lock_common+0x194/0x1f14 [ 49.801120][ T4406] mutex_lock_nested+0xac/0x11c [ 49.802029][ T4406] jbd2_journal_lock_updates+0x260/0x318 [ 49.802974][ T4406] ext4_change_inode_journal_flag+0x158/0x630 [ 49.803994][ T4406] ext4_fileattr_set+0xbd8/0x133c [ 49.804892][ T4406] vfs_fileattr_set+0x67c/0x90c [ 49.805713][ T4406] do_vfs_ioctl+0x1c88/0x23f0 [ 49.806524][ T4406] __arm64_sys_ioctl+0xe4/0x1c8 [ 49.807481][ T4406] invoke_syscall+0x98/0x2b0 [ 49.808293][ T4406] el0_svc_common+0x138/0x258 [ 49.809136][ T4406] do_el0_svc+0x58/0x13c [ 49.809889][ T4406] el0_svc+0x78/0x1d0 [ 49.810608][ T4406] el0t_64_sync_handler+0xcc/0xe4 [ 49.811437][ T4406] el0t_64_sync+0x1a0/0x1a4 [ 50.363241][ T4512] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 50.424170][ T3622] Bluetooth: hci0: command 0x0409 tx timeout [ 51.204291][ T4584] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 52.047334][ T4587] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 52.513758][ T3622] Bluetooth: hci0: command 0x041b tx timeout 1970/01/01 00:00:53 executed programs: 5 [ 52.888392][ T4592] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 53.729454][ T4595] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 54.572944][ T4598] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 54.584020][ T7] Bluetooth: hci0: command 0x040f tx timeout [ 55.412907][ T4601] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 56.254530][ T4604] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 56.663755][ T7] Bluetooth: hci0: command 0x0419 tx timeout [ 57.095899][ T4607] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 1970/01/01 00:00:58 executed programs: 11 [ 57.938752][ T4610] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 58.780380][ T4613] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow