0
[  215.052811][ T4883] workingset_activate_anon 0
[  215.052811][ T4883] workingset_activate_file 0
[  215.148205][ T4461] Failed to create system directory f2fs
[  215.148238][ T4461] Could not create directory for event f2fs_drop_inode
[  215.177209][ T4883] oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=test,mems_allowed=0-1,oom_memcg=/syz0/test,task_memcg=/syz0/test,task=syz.0.136,pid=4883,uid=0
[  215.193509][ T4883] Memory cgroup out of memory: Killed process 4883 (syz.0.136) total-vm:44920kB, anon-rss:1324kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000
[  215.213371][ T4866] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  215.258290][ T4461] Failed to create system directory f2fs
[  215.264586][ T4461] Could not create directory for event f2fs_unlink_exit
[  215.321663][ T4884] syz.0.137 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
[  215.342791][ T4866] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  215.354406][ T4884] CPU: 1 PID: 4884 Comm: syz.0.137 Not tainted syzkaller #0
[  215.361734][ T4884] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  215.371825][ T4884] Call Trace:
[  215.375147][ T4884]  <TASK>
[  215.378103][ T4884]  dump_stack_lvl+0x188/0x250
[  215.382811][ T4884]  ? show_regs_print_info+0x20/0x20
[  215.388034][ T4884]  ? load_image+0x410/0x410
[  215.392558][ T4884]  ? local_lock_release+0x170/0x170
[  215.397780][ T4884]  ? __rwlock_init+0x140/0x140
[  215.402576][ T4884]  dump_header+0xd9/0x780
[  215.406931][ T4884]  oom_kill_process+0x20e/0x3d0
[  215.411802][ T4884]  out_of_memory+0xdb2/0x1190
[  215.416497][ T4884]  ? mem_cgroup_out_of_memory+0xbd/0x3b0
[  215.422164][ T4884]  ? mutex_lock_io_nested+0x60/0x60
[  215.427391][ T4884]  ? unregister_oom_notifier+0x20/0x20
[  215.432890][ T4884]  mem_cgroup_out_of_memory+0x2b9/0x3b0
[  215.438464][ T4884]  ? mem_cgroup_oom_trylock+0x210/0x210
[  215.444048][ T4884]  ? do_raw_spin_unlock+0x11d/0x230
[  215.449267][ T4884]  try_charge_memcg+0x1075/0x15b0
[  215.454351][ T4884]  ? get_mem_cgroup_from_objcg+0x120/0x120
[  215.460187][ T4884]  ? rcu_lock_acquire+0x30/0x30
[  215.465078][ T4884]  ? __lock_acquire+0x13dc/0x7b50
[  215.470150][ T4884]  obj_cgroup_charge_pages+0x87/0x190
[  215.475561][ T4884]  ? __memcg_kmem_charge_page+0x380/0x380
[  215.481340][ T4884]  ? rcu_lock_acquire+0x30/0x30
[  215.486237][ T4884]  obj_cgroup_charge+0x19f/0x320
[  215.491210][ T4884]  ? mod_objcg_mlstate+0x2e0/0x2e0
[  215.496359][ T4884]  slab_pre_alloc_hook+0x9d/0xc0
[  215.501345][ T4884]  ? __d_alloc+0x27/0x6d0
[  215.505730][ T4884]  kmem_cache_alloc+0x3d/0x280
[  215.510529][ T4884]  __d_alloc+0x27/0x6d0
[  215.514710][ T4884]  d_alloc+0x46/0x250
[  215.518720][ T4884]  lookup_one_qstr_excl+0xc6/0x240
[  215.523854][ T4884]  filename_create+0x242/0x450
[  215.528645][ T4884]  ? kern_path_create+0x190/0x190
[  215.533713][ T4884]  do_mkdirat+0xa5/0x5c0
[  215.537996][ T4884]  ? vfs_mkdir+0x570/0x570
[  215.542458][ T4884]  __x64_sys_mkdirat+0x85/0x90
[  215.547247][ T4884]  do_syscall_64+0x4c/0xa0
[  215.551691][ T4884]  ? clear_bhb_loop+0x30/0x80
[  215.556402][ T4884]  ? clear_bhb_loop+0x30/0x80
[  215.561112][ T4884]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  215.567034][ T4884] RIP: 0033:0x7f7e0dfac159
[  215.571474][ T4884] 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 e8 ff ff ff f7 d8 64 89 01 48
[  215.591103][ T4884] RSP: 002b:00007ffe6ce73288 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[  215.599550][ T4884] RAX: ffffffffffffffda RBX: 00007f7e0e233fa0 RCX: 00007f7e0dfac159
[  215.607538][ T4884] RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
[  215.615543][ T4884] RBP: 00007f7e0e04306b R08: 0000000000000000 R09: 0000000000000000
[  215.623554][ T4884] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  215.631553][ T4884] R13: 00007f7e0e233fac R14: 00007f7e0e233fa0 R15: 00007f7e0e233fa0
[  215.639566][ T4884]  </TASK>
[  215.645638][ T4461] Failed to create system directory f2fs
[  215.656668][ T4461] Could not create directory for event f2fs_unlink_enter
[  215.665255][ T4884] memory: usage 96kB, limit 96kB, failcnt 54709
[  215.673390][ T4884] memory+swap: usage 96kB, limit 9007199254740988kB, failcnt 0
[  215.686580][ T4884] kmem: usage 96kB, limit 9007199254740988kB, failcnt 0
[  215.713202][ T4884] Memory cgroup stats for /syz0/test:
[  215.713333][ T4884] anon 0
[  215.713333][ T4884] file 0
[  215.713333][ T4884] kernel_stack 0
[  215.713333][ T4884] pagetables 0
[  215.713333][ T4884] percpu 0
[  215.713333][ T4884] sock 0
[  215.713333][ T4884] shmem 0
[  215.713333][ T4884] file_mapped 0
[  215.713333][ T4884] file_dirty 0
[  215.713333][ T4884] file_writeback 0
[  215.713333][ T4884] swapcached 0
[  215.713333][ T4884] anon_thp 0
[  215.713333][ T4884] file_thp 0
[  215.713333][ T4884] shmem_thp 0
[  215.713333][ T4884] inactive_anon 0
[  215.713333][ T4884] active_anon 0
[  215.713333][ T4884] inactive_file 0
[  215.713333][ T4884] active_file 0
[  215.713333][ T4884] unevictable 0
[  215.713333][ T4884] slab_reclaimable 94912
[  215.713333][ T4884] slab_unreclaimable 1992
[  215.713333][ T4884] slab 96904
[  215.713333][ T4884] workingset_refault_anon 0
[  215.713333][ T4884] workingset_refault_file 0
[  215.713333][ T4884] workingset_activate_anon 0
[  215.713333][ T4884] workingset_activate_file 0
[  215.833832][ T4884] oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=test,mems_allowed=0-1,oom_memcg=/syz0/test,task_memcg=/syz0/test,task=syz.0.137,pid=4884,uid=0
[  215.864873][ T4461] Failed to create system directory f2fs
[  215.870575][ T4461] Could not create directory for event f2fs_new_inode
[  215.893829][ T4884] Memory cgroup out of memory: Killed process 4884 (syz.0.137) total-vm:44920kB, anon-rss:1324kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000
[  215.917262][ T1235] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[  215.936931][ T1235] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[  215.952473][ T4461] Failed to create system directory f2fs
[  215.963894][ T4461] Could not create directory for event f2fs_evict_inode
[  215.975539][  T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[  216.024512][ T1235] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[  216.032468][ T1235] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[  216.060006][  T144] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
[  216.078722][ T4866] netdevsim netdevsim1 netdevsim0: renamed from eth0
[  216.100319][ T4461] Failed to create system directory f2fs
[  216.118164][ T4866] netdevsim netdevsim1 netdevsim1: renamed from eth1
[  216.133662][ T4461] Could not create directory for event f2fs_iget_exit
[  216.142659][ T4885] syz.0.138 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
[  216.170539][ T4866] netdevsim netdevsim1 netdevsim2: renamed from eth2
[  216.190275][ T4885] CPU: 1 PID: 4885 Comm: syz.0.138 Not tainted syzkaller #0
[  216.197617][ T4885] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  216.202062][ T4866] netdevsim netdevsim1 netdevsim3: renamed from eth3
[  216.207692][ T4885] Call Trace:
[  216.207702][ T4885]  <TASK>
[  216.207711][ T4885]  dump_stack_lvl+0x188/0x250
[  216.225325][ T4885]  ? show_regs_print_info+0x20/0x20
[  216.230566][ T4885]  ? load_image+0x410/0x410
[  216.235093][ T4885]  ? local_lock_release+0x170/0x170
[  216.240317][ T4885]  ? __rwlock_init+0x140/0x140
[  216.245112][ T4885]  dump_header+0xd9/0x780
[  216.249472][ T4885]  oom_kill_process+0x20e/0x3d0
[  216.254353][ T4885]  out_of_memory+0xdb2/0x1190
[  216.259062][ T4885]  ? mem_cgroup_out_of_memory+0xbd/0x3b0
[  216.264733][ T4885]  ? mutex_lock_io_nested+0x60/0x60
[  216.269972][ T4885]  ? unregister_oom_notifier+0x20/0x20
[  216.275482][ T4885]  mem_cgroup_out_of_memory+0x2b9/0x3b0
[  216.281060][ T4885]  ? mem_cgroup_oom_trylock+0x210/0x210
[  216.286644][ T4885]  ? do_raw_spin_unlock+0x11d/0x230
[  216.291883][ T4885]  try_charge_memcg+0x1075/0x15b0
[  216.296958][ T4885]  ? get_mem_cgroup_from_objcg+0x120/0x120
[  216.302799][ T4885]  ? rcu_lock_acquire+0x30/0x30
[  216.307678][ T4885]  ? __lock_acquire+0x13dc/0x7b50
[  216.312754][ T4885]  obj_cgroup_charge_pages+0x87/0x190
[  216.318146][ T4885]  ? __memcg_kmem_charge_page+0x380/0x380
[  216.323903][ T4885]  ? rcu_lock_acquire+0x30/0x30
[  216.328784][ T4885]  obj_cgroup_charge+0x19f/0x320
[  216.330278][ T4461] Failed to create system directory f2fs
[  216.333752][ T4885]  ? mod_objcg_mlstate+0x2e0/0x2e0
[  216.333791][ T4885]  slab_pre_alloc_hook+0x9d/0xc0
[  216.349476][ T4885]  ? __d_alloc+0x27/0x6d0
[  216.353855][ T4885]  kmem_cache_alloc+0x3d/0x280
[  216.358644][ T4885]  __d_alloc+0x27/0x6d0
[  216.362827][ T4885]  d_alloc+0x46/0x250
[  216.366844][ T4885]  lookup_one_qstr_excl+0xc6/0x240
[  216.371988][ T4885]  filename_create+0x242/0x450
[  216.376786][ T4885]  ? kern_path_create+0x190/0x190
[  216.381860][ T4885]  do_mkdirat+0xa5/0x5c0
[  216.383526][ T4461] Could not create directory for event f2fs_iget
[  216.386126][ T4885]  ? vfs_mkdir+0x570/0x570
[  216.396895][ T4885]  __x64_sys_mkdirat+0x85/0x90
[  216.401727][ T4885]  do_syscall_64+0x4c/0xa0
[  216.406166][ T4885]  ? clear_bhb_loop+0x30/0x80
[  216.410871][ T4885]  ? clear_bhb_loop+0x30/0x80
[  216.415575][ T4885]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  216.421492][ T4885] RIP: 0033:0x7f7e0dfac159
[  216.425931][ T4885] 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 e8 ff ff ff f7 d8 64 89 01 48
[  216.445563][ T4885] RSP: 002b:00007ffe6ce73288 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[  216.454000][ T4885] RAX: ffffffffffffffda RBX: 00007f7e0e233fa0 RCX: 00007f7e0dfac159
[  216.461987][ T4885] RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
[  216.469983][ T4885] RBP: 00007f7e0e04306b R08: 0000000000000000 R09: 0000000000000000
[  216.477967][ T4885] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  216.485964][ T4885] R13: 00007f7e0e233fac R14: 00007f7e0e233fa0 R15: 00007f7e0e233fa0
[  216.493976][ T4885]  </TASK>
[  216.506910][ T4361] Bluetooth: hci22: command 0x0419 tx timeout
[  216.520127][ T4885] memory: usage 96kB, limit 96kB, failcnt 54916
[  216.531318][ T4461] Failed to create system directory f2fs
[  216.545175][ T4885] memory+swap: usage 96kB, limit 9007199254740988kB, failcnt 0
[  216.552798][ T4885] kmem: usage 96kB, limit 9007199254740988kB, failcnt 0
[  216.563076][ T4461] Could not create directory for event f2fs_sync_fs
[  216.572659][ T4885] Memory cgroup stats for /syz0/test:
[  216.573353][ T4885] anon 0
[  216.573353][ T4885] file 0
[  216.573353][ T4885] kernel_stack 0
[  216.573353][ T4885] pagetables 0
[  216.573353][ T4885] percpu 0
[  216.573353][ T4885] sock 0
[  216.573353][ T4885] shmem 0
[  216.573353][ T4885] file_mapped 0
[  216.573353][ T4885] file_dirty 0
[  216.573353][ T4885] file_writeback 0
[  216.573353][ T4885] swapcached 0
[  216.573353][ T4885] anon_thp 0
[  216.573353][ T4885] file_thp 0
[  216.573353][ T4885] shmem_thp 0
[  216.573353][ T4885] inactive_anon 0
[  216.573353][ T4885] active_anon 0
[  216.573353][ T4885] inactive_file 0
[  216.573353][ T4885] active_file 0
[  216.573353][ T4885] unevictable 0
[  216.573353][ T4885] slab_reclaimable 94912
[  216.573353][ T4885] slab_unreclaimable 1992
[  216.573353][ T4885] slab 96904
[  216.573353][ T4885] workingset_refault_anon 0
[  216.573353][ T4885] workingset_refault_file 0
[  216.573353][ T4885] workingset_activate_anon 0
[  216.573353][ T4885] workingset_activate_file 0
[  216.683911][ T4885] oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=test,mems_allowed=0-1,oom_memcg=/syz0/test,task_memcg=/syz0/test,task=syz.0.138,pid=4885,uid=0
[  216.704333][ T4885] Memory cgroup out of memory: Killed process 4885 (syz.0.138) total-vm:44920kB, anon-rss:1324kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000
[  216.741997][ T4461] Failed to create system directory f2fs
[  216.762465][ T4461] Could not create directory for event f2fs_sync_file_exit
[  216.791523][ T4866] 8021q: adding VLAN 0 to HW filter on device bond0
[  216.837746][ T4256] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[  216.846895][ T4256] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[  216.869886][ T4866] 8021q: adding VLAN 0 to HW filter on device team0
[  216.879149][ T4461] Failed to create system directory f2fs
[  216.887247][ T4887] syz.0.139 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
[  216.897211][ T4461] Could not create directory for event f2fs_sync_file_enter
[  216.904643][ T4887] CPU: 0 PID: 4887 Comm: syz.0.139 Not tainted syzkaller #0
[  216.911955][ T4887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  216.919159][ T4256] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
[  216.922030][ T4887] Call Trace:
[  216.922040][ T4887]  <TASK>
[  216.922049][ T4887]  dump_stack_lvl+0x188/0x250
[  216.941043][ T4887]  ? show_regs_print_info+0x20/0x20
[  216.946276][ T4887]  ? load_image+0x410/0x410
[  216.947629][ T4256] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[  216.950811][ T4887]  ? local_lock_release+0x170/0x170
[  216.963989][ T4887]  ? __rwlock_init+0x140/0x140
[  216.968788][ T4887]  dump_header+0xd9/0x780
[  216.973200][ T4887]  oom_kill_process+0x20e/0x3d0
[  216.978084][ T4887]  out_of_memory+0xdb2/0x1190
[  216.982794][ T4887]  ? mem_cgroup_out_of_memory+0xbd/0x3b0
[  216.985581][ T4256] bridge0: port 1(bridge_slave_0) entered blocking state
[  216.988452][ T4887]  ? mutex_lock_io_nested+0x60/0x60
[  216.995718][ T4256] bridge0: port 1(bridge_slave_0) entered forwarding state
[  217.000677][ T4887]  ? unregister_oom_notifier+0x20/0x20
[  217.013351][ T4887]  mem_cgroup_out_of_memory+0x2b9/0x3b0
[  217.018932][ T4887]  ? mem_cgroup_oom_trylock+0x210/0x210
[  217.024515][ T4887]  ? do_raw_spin_unlock+0x11d/0x230
[  217.029741][ T4887]  try_charge_memcg+0x1075/0x15b0
[  217.034798][ T4887]  ? get_mem_cgroup_from_objcg+0x120/0x120
[  217.040640][ T4887]  ? rcu_lock_acquire+0x30/0x30
[  217.045516][ T4887]  ? __lock_acquire+0x13dc/0x7b50
[  217.050590][ T4887]  obj_cgroup_charge_pages+0x87/0x190
[  217.055996][ T4887]  ? __memcg_kmem_charge_page+0x380/0x380
[  217.060677][ T4256] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
[  217.061753][ T4887]  ? rcu_lock_acquire+0x30/0x30
[  217.073984][ T4887]  obj_cgroup_charge+0x19f/0x320
[  217.078956][ T4887]  ? mod_objcg_mlstate+0x2e0/0x2e0
[  217.084108][ T4887]  slab_pre_alloc_hook+0x9d/0xc0
[  217.089073][ T4887]  ? __d_alloc+0x27/0x6d0
[  217.093430][ T4887]  kmem_cache_alloc+0x3d/0x280
[  217.096140][ T4256] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
[  217.098219][ T4887]  __d_alloc+0x27/0x6d0
[  217.098250][ T4887]  d_alloc+0x46/0x250
[  217.114468][ T4887]  lookup_one_qstr_excl+0xc6/0x240
[  217.119617][ T4887]  filename_create+0x242/0x450
[  217.124417][ T4887]  ? kern_path_create+0x190/0x190
[  217.129484][ T4887]  do_mkdirat+0xa5/0x5c0
[  217.131833][ T4256] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[  217.133752][ T4887]  ? vfs_mkdir+0x570/0x570
[  217.133787][ T4887]  __x64_sys_mkdirat+0x85/0x90
[  217.133812][ T4887]  do_syscall_64+0x4c/0xa0
[  217.133833][ T4887]  ? clear_bhb_loop+0x30/0x80
[  217.133856][ T4887]  ? clear_bhb_loop+0x30/0x80
[  217.133879][ T4887]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  217.166321][ T4256] bridge0: port 2(bridge_slave_1) entered blocking state
[  217.170862][ T4887] RIP: 0033:0x7f7e0dfac159
[  217.170886][ T4887] 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 e8 ff ff ff f7 d8 64 89 01 48
[  217.178185][ T4256] bridge0: port 2(bridge_slave_1) entered forwarding state
[  217.182355][ T4887] RSP: 002b:00007ffe6ce73288 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[  217.217603][ T4887] RAX: ffffffffffffffda RBX: 00007f7e0e233fa0 RCX: 00007f7e0dfac159
[  217.225612][ T4887] RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
[  217.233614][ T4887] RBP: 00007f7e0e04306b R08: 0000000000000000 R09: 0000000000000000
[  217.241612][ T4887] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  217.249624][ T4887] R13: 00007f7e0e233fac R14: 00007f7e0e233fa0 R15: 00007f7e0e233fa0
[  217.257640][ T4887]  </TASK>
[  217.281217][ T4256] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready
[  217.305365][ T4461] Failed to create system directory gfs2
[  217.311505][ T4461] Could not create directory for event gfs2_rs
[  217.318127][ T4256] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready
[  217.335581][ T4256] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready
[  217.347836][ T4461] Failed to create system directory gfs2
[  217.353716][ T4461] Could not create directory for event gfs2_block_alloc
[  217.356940][ T4256] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[  217.391514][ T4461] Failed to create system directory gfs2
[  217.397434][ T4461] Could not create directory for event gfs2_iomap_end
[  217.406485][ T4256] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[  217.415292][ T4256] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready
[  217.424719][ T4256] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[  217.445693][ T4256] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready
[  217.456780][ T4256] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[  217.459445][ T4461] Failed to create system directory gfs2
[  217.469754][ T4256] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready
[  217.480161][ T4461] Could not create directory for event gfs2_iomap_start
[  217.492905][ T4256] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[  217.504332][ T4866] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[  217.544730][ T4461] Failed to create system directory gfs2
[  217.550462][ T4461] Could not create directory for event gfs2_bmap
[  217.586373][ T4887] memory: usage 96kB, limit 96kB, failcnt 55220
[  217.592691][ T4887] memory+swap: usage 96kB, limit 9007199254740988kB, failcnt 0
[  217.623759][ T4887] kmem: usage 96kB, limit 9007199254740988kB, failcnt 0
[  217.630749][ T4887] Memory cgroup stats for /syz0/test:
[  217.631588][ T4887] anon 0
[  217.631588][ T4887] file 0
[  217.631588][ T4887] kernel_stack 0
[  217.631588][ T4887] pagetables 0
[  217.631588][ T4887] percpu 0
[  217.631588][ T4887] sock 0
[  217.631588][ T4887] shmem 0
[  217.631588][ T4887] file_mapped 0
[  217.631588][ T4887] file_dirty 0
[  217.631588][ T4887] file_writeback 0
[  217.631588][ T4887] swapcached 0
[  217.631588][ T4887] anon_thp 0
[  217.631588][ T4887] file_thp 0
[  217.631588][ T4887] shmem_thp 0
[  217.631588][ T4887] inactive_anon 0
[  217.631588][ T4887] active_anon 0
[  217.631588][ T4887] inactive_file 0
[  217.631588][ T4887] active_file 0
[  217.631588][ T4887] unevictable 0
[  217.631588][ T4887] slab_reclaimable 94912
[  217.631588][ T4887] slab_unreclaimable 1992
[  217.631588][ T4887] slab 96904
[  217.631588][ T4887] workingset_refault_anon 0
[  217.631588][ T4887] workingset_refault_file 0
[  217.631588][ T4887] workingset_activate_anon 0
[  217.631588][ T4887] workingset_activate_file 0
[  217.664972][ T4461] Failed to create system directory gfs2
[  217.739399][ T4887] oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=test,mems_allowed=0-1,oom_memcg=/syz0/test,task_memcg=/syz0/test,task=syz.0.139,pid=4887,uid=0
[  217.756882][ T4887] Memory cgroup out of memory: Killed process 4887 (syz.0.139) total-vm:44920kB, anon-rss:1324kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000
[  217.817694][ T1235] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[  217.826165][ T1235] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[  217.848913][ T4866] 8021q: adding VLAN 0 to HW filter on device batadv0
[  217.863974][ T4461] Could not create directory for event gfs2_ail_flush
2026/09/20 06:04:41 executed programs: 132
[  217.937412][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready
[  217.947656][ T4893] syz.0.141 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
[  217.958069][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[  217.968293][ T4893] CPU: 1 PID: 4893 Comm: syz.0.141 Not tainted syzkaller #0
[  217.975623][ T4893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  217.985699][ T4893] Call Trace:
[  217.989030][ T4893]  <TASK>
[  217.991981][ T4893]  dump_stack_lvl+0x188/0x250
[  217.996694][ T4893]  ? show_regs_print_info+0x20/0x20
[  218.001922][ T4893]  ? load_image+0x410/0x410
[  218.006462][ T4893]  ? local_lock_release+0x170/0x170
[  218.011728][ T4893]  ? __rwlock_init+0x140/0x140
[  218.016530][ T4893]  dump_header+0xd9/0x780
[  218.020895][ T4893]  oom_kill_process+0x20e/0x3d0
[  218.025787][ T4893]  out_of_memory+0xdb2/0x1190
[  218.030496][ T4893]  ? mem_cgroup_out_of_memory+0xbd/0x3b0
[  218.036162][ T4893]  ? mutex_lock_io_nested+0x60/0x60
[  218.041395][ T4893]  ? unregister_oom_notifier+0x20/0x20
[  218.046894][ T4893]  mem_cgroup_out_of_memory+0x2b9/0x3b0
[  218.052487][ T4893]  ? mem_cgroup_oom_trylock+0x210/0x210
[  218.058070][ T4893]  ? do_raw_spin_unlock+0x11d/0x230
[  218.063328][ T4893]  try_charge_memcg+0x1075/0x15b0
[  218.068399][ T4893]  ? get_mem_cgroup_from_objcg+0x120/0x120
[  218.074239][ T4893]  ? rcu_lock_acquire+0x30/0x30
[  218.079125][ T4893]  ? __lock_acquire+0x13dc/0x7b50
[  218.084215][ T4893]  obj_cgroup_charge_pages+0x87/0x190
[  218.089621][ T4893]  ? __memcg_kmem_charge_page+0x380/0x380
[  218.095375][ T4893]  ? rcu_lock_acquire+0x30/0x30
[  218.100265][ T4893]  obj_cgroup_charge+0x19f/0x320
[  218.105240][ T4893]  ? mod_objcg_mlstate+0x2e0/0x2e0
[  218.110395][ T4893]  slab_pre_alloc_hook+0x9d/0xc0
[  218.115367][ T4893]  ? __d_alloc+0x27/0x6d0
[  218.119730][ T4893]  kmem_cache_alloc+0x3d/0x280
[  218.124529][ T4893]  __d_alloc+0x27/0x6d0
[  218.128726][ T4893]  d_alloc+0x46/0x250
[  218.132748][ T4893]  lookup_one_qstr_excl+0xc6/0x240
[  218.137897][ T4893]  filename_create+0x242/0x450
[  218.142694][ T4893]  ? kern_path_create+0x190/0x190
[  218.147756][ T4893]  do_mkdirat+0xa5/0x5c0
[  218.152036][ T4893]  ? vfs_mkdir+0x570/0x570
[  218.156488][ T4893]  __x64_sys_mkdirat+0x85/0x90
[  218.161289][ T4893]  do_syscall_64+0x4c/0xa0
[  218.165734][ T4893]  ? clear_bhb_loop+0x30/0x80
[  218.170465][ T4893]  ? clear_bhb_loop+0x30/0x80
[  218.175172][ T4893]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  218.181093][ T4893] RIP: 0033:0x7f7e0dfac159
[  218.185534][ T4893] 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 e8 ff ff ff f7 d8 64 89 01 48
[  218.205172][ T4893] RSP: 002b:00007ffe6ce73288 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[  218.213623][ T4893] RAX: ffffffffffffffda RBX: 00007f7e0e233fa0 RCX: 00007f7e0dfac159
[  218.221626][ T4893] RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
[  218.229629][ T4893] RBP: 00007f7e0e04306b R08: 0000000000000000 R09: 0000000000000000
[  218.231604][ T4461] Failed to create system directory gfs2
[  218.237623][ T4893] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  218.237641][ T4893] R13: 00007f7e0e233fac R14: 00007f7e0e233fa0 R15: 00007f7e0e233fa0
[  218.237698][ T4893]  </TASK>
[  218.250269][ T4866] device veth0_vlan entered promiscuous mode
[  218.275434][ T4893] memory: usage 96kB, limit 96kB, failcnt 55321
[  218.282603][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready
[  218.293708][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[  218.314321][ T4461] Could not create directory for event gfs2_log_blocks
[  218.341577][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[  218.349144][ T4461] Failed to create system directory gfs2
[  218.355251][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[  218.355771][ T4461] Could not create directory for event gfs2_log_flush
[  218.378396][ T4866] device veth1_vlan entered promiscuous mode
[  218.397142][ T4461] Failed to create system directory gfs2
[  218.406352][ T4461] Could not create directory for event gfs2_pin
[  218.431697][ T4461] Failed to create system directory gfs2
[  218.440505][ T4461] Could not create directory for event gfs2_glock_lock_time
[  218.453789][ T4893] memory+swap: usage 96kB, limit 9007199254740988kB, failcnt 0
[  218.471503][ T4893] kmem: usage 96kB, limit 9007199254740988kB, failcnt 0
[  218.479282][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[  218.485692][ T4461] Failed to create system directory gfs2
[  218.492597][ T4893] Memory cgroup stats for /syz0/test:
[  218.492730][ T4893] anon 0
[  218.492730][ T4893] file 0
[  218.492730][ T4893] kernel_stack 0
[  218.492730][ T4893] pagetables 0
[  218.492730][ T4893] percpu 0
[  218.492730][ T4893] sock 0
[  218.492730][ T4893] shmem 0
[  218.492730][ T4893] file_mapped 0
[  218.492730][ T4893] file_dirty 0
[  218.492730][ T4893] file_writeback 0
[  218.492730][ T4893] swapcached 0
[  218.492730][ T4893] anon_thp 0
[  218.492730][ T4893] file_thp 0
[  218.492730][ T4893] shmem_thp 0
[  218.492730][ T4893] inactive_anon 0
[  218.492730][ T4893] active_anon 0
[  218.492730][ T4893] inactive_file 0
[  218.492730][ T4893] active_file 0
[  218.492730][ T4893] unevictable 0
[  218.492730][ T4893] slab_reclaimable 94912
[  218.492730][ T4893] slab_unreclaimable 1992
[  218.492730][ T4893] slab 96904
[  218.492730][ T4893] workingset_refault_anon 0
[  218.492730][ T4893] workingset_refault_file 0
[  218.492730][ T4893] workingset_activate_anon 0
[  218.492730][ T4893] workingset_activate_file 0
[  218.597710][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[  218.609470][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready
[  218.618385][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[  218.627714][ T4893] oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=test,mems_allowed=0-1,oom_memcg=/syz0/test,task_memcg=/syz0/test,task=syz.0.141,pid=4893,uid=0
[  218.645612][ T4893] Memory cgroup out of memory: Killed process 4893 (syz.0.141) total-vm:44920kB, anon-rss:1324kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000
[  218.647140][ T4866] device veth0_macvtap entered promiscuous mode
[  218.674726][ T4461] Could not create directory for event gfs2_glock_queue
[  218.737851][ T4866] device veth1_macvtap entered promiscuous mode
[  218.796613][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  218.814971][ T4896] syz.0.142 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
[  218.827530][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  218.847018][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  218.857620][ T4896] CPU: 0 PID: 4896 Comm: syz.0.142 Not tainted syzkaller #0
[  218.864940][ T4896] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  218.875024][ T4896] Call Trace:
[  218.878331][ T4896]  <TASK>
[  218.881282][ T4896]  dump_stack_lvl+0x188/0x250
[  218.885989][ T4896]  ? show_regs_print_info+0x20/0x20
[  218.891223][ T4896]  ? load_image+0x410/0x410
[  218.895777][ T4896]  ? local_lock_release+0x170/0x170
[  218.901011][ T4896]  ? __rwlock_init+0x140/0x140
[  218.905813][ T4896]  dump_header+0xd9/0x780
[  218.910182][ T4896]  oom_kill_process+0x20e/0x3d0
[  218.915074][ T4896]  out_of_memory+0xdb2/0x1190
[  218.919789][ T4896]  ? mem_cgroup_out_of_memory+0xbd/0x3b0
[  218.925462][ T4896]  ? mutex_lock_io_nested+0x60/0x60
[  218.930702][ T4896]  ? unregister_oom_notifier+0x20/0x20
[  218.936214][ T4896]  mem_cgroup_out_of_memory+0x2b9/0x3b0
[  218.941792][ T4896]  ? mem_cgroup_oom_trylock+0x210/0x210
[  218.947378][ T4896]  ? do_raw_spin_unlock+0x11d/0x230
[  218.952610][ T4896]  try_charge_memcg+0x1075/0x15b0
[  218.957681][ T4896]  ? get_mem_cgroup_from_objcg+0x120/0x120
[  218.963522][ T4896]  ? rcu_lock_acquire+0x30/0x30
[  218.968403][ T4896]  ? __lock_acquire+0x13dc/0x7b50
[  218.973475][ T4896]  obj_cgroup_charge_pages+0x87/0x190
[  218.978879][ T4896]  ? __memcg_kmem_charge_page+0x380/0x380
[  218.984643][ T4896]  ? rcu_lock_acquire+0x30/0x30
[  218.989523][ T4896]  obj_cgroup_charge+0x19f/0x320
[  218.994504][ T4896]  ? mod_objcg_mlstate+0x2e0/0x2e0
[  218.999678][ T4896]  slab_pre_alloc_hook+0x9d/0xc0
[  219.004660][ T4896]  ? __d_alloc+0x27/0x6d0
[  219.009016][ T4896]  kmem_cache_alloc+0x3d/0x280
[  219.013834][ T4896]  __d_alloc+0x27/0x6d0
[  219.018019][ T4896]  d_alloc+0x46/0x250
[  219.022107][ T4896]  lookup_one_qstr_excl+0xc6/0x240
[  219.027265][ T4896]  filename_create+0x242/0x450
[  219.032069][ T4896]  ? kern_path_create+0x190/0x190
[  219.037135][ T4896]  do_mkdirat+0xa5/0x5c0
[  219.041418][ T4896]  ? vfs_mkdir+0x570/0x570
[  219.045871][ T4896]  __x64_sys_mkdirat+0x85/0x90
[  219.050660][ T4896]  do_syscall_64+0x4c/0xa0
[  219.055100][ T4896]  ? clear_bhb_loop+0x30/0x80
[  219.059798][ T4896]  ? clear_bhb_loop+0x30/0x80
[  219.064505][ T4896]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  219.070427][ T4896] RIP: 0033:0x7f7e0dfac159
[  219.074892][ T4896] 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 e8 ff ff ff f7 d8 64 89 01 48
[  219.094613][ T4896] RSP: 002b:00007ffe6ce73288 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[  219.103083][ T4896] RAX: ffffffffffffffda RBX: 00007f7e0e233fa0 RCX: 00007f7e0dfac159
[  219.111215][ T4896] RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
[  219.119225][ T4896] RBP: 00007f7e0e04306b R08: 0000000000000000 R09: 0000000000000000
[  219.127235][ T4896] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  219.135233][ T4896] R13: 00007f7e0e233fac R14: 00007f7e0e233fa0 R15: 00007f7e0e233fa0
[  219.143245][ T4896]  </TASK>
[  219.159290][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.169255][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  219.179734][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.189713][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  219.200201][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.210100][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  219.223447][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.233373][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  219.244101][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.253987][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  219.269038][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.279046][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  219.289634][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.299612][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  219.310215][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.323103][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  219.334132][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.344025][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  219.354521][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.364522][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  219.379651][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.389563][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  219.402677][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.412606][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  219.425658][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.433964][ T4896] memory: usage 96kB, limit 96kB, failcnt 55536
[  219.438441][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  219.447114][ T4896] memory+swap: usage 96kB, limit 9007199254740988kB, failcnt 0
[  219.452321][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.470008][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  219.480954][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.495572][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  219.506277][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.514042][ T4896] kmem: usage 96kB, limit 9007199254740988kB, failcnt 0
[  219.516191][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  219.523045][ T4896] Memory cgroup stats for /syz0/test
[  219.536528][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.551773][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  219.563745][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.573764][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  219.584224][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.596736][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  219.609417][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.619326][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  219.632444][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.645468][ T4866] batman_adv: batadv0: Interface activated: batadv_slave_0
[  219.669678][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[  219.677967][ T4896] :
[  219.678084][ T4896] anon 0
[  219.678084][ T4896] file 0
[  219.678084][ T4896] kernel_stack 0
[  219.678084][ T4896] pagetables 0
[  219.678084][ T4896] percpu 0
[  219.678084][ T4896] sock 0
[  219.678084][ T4896] shmem 0
[  219.678084][ T4896] file_mapped 0
[  219.678084][ T4896] file_dirty 0
[  219.678084][ T4896] file_writeback 0
[  219.678084][ T4896] swapcached 0
[  219.678084][ T4896] anon_thp 0
[  219.678084][ T4896] file_thp 0
[  219.678084][ T4896] shmem_thp 0
[  219.678084][ T4896] inactive_anon 0
[  219.678084][ T4896] active_anon 0
[  219.678084][ T4896] inactive_file 0
[  219.678084][ T4896] active_file 0
[  219.678084][ T4896] unevictable 0
[  219.678084][ T4896] slab_reclaimable 94912
[  219.678084][ T4896] slab_unreclaimable 1992
[  219.678084][ T4896] slab 96904
[  219.678084][ T4896] workingset_refault_anon 0
[  219.678084][ T4896] workingset_refault_file 0
[  219.678084][ T4896] workingset_activate_anon 0
[  219.678084][ T4896] workingset_activate_file 0
[  219.689107][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready
[  219.810623][ T4461] Failed to create system directory gfs2
[  219.816483][ T4461] Could not create directory for event gfs2_promote
[  219.839601][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
[  219.847979][ T4896] oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=test,mems_allowed=0-1,oom_memcg=/syz0/test,task_memcg=/syz0/test,task=syz.0.142,pid=4896,uid=0
[  219.865592][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[  219.885603][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  219.896653][ T4896] Memory cgroup out of memory: Killed process 4896 (syz.0.142) total-vm:44920kB, anon-rss:1324kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000
[  219.917541][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.928852][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  219.946050][ T4461] Failed to create system directory gfs2
[  219.951745][ T4461] Could not create directory for event gfs2_demote_rq
[  219.973749][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  219.993683][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  220.004448][ T4461] Failed to create system directory gfs2
[  220.010141][ T4461] Could not create directory for event gfs2_glock_put
[  220.025496][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  220.053704][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  220.075220][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  220.085872][ T4461] Failed to create system directory gfs2
[  220.091661][ T4461] Could not create directory for event gfs2_glock_state_change
[  220.099991][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  220.123694][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  220.124650][ T4897] syz.0.143 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
[  220.161020][ T4461] Failed to create system directory btrfs
[  220.164052][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  220.167108][ T4461] Could not create directory for event update_bytes_pinned
[  220.183769][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  220.188497][ T4897] CPU: 0 PID: 4897 Comm: syz.0.143 Not tainted syzkaller #0
[  220.201721][ T4897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  220.211804][ T4897] Call Trace:
[  220.214194][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  220.215109][ T4897]  <TASK>
[  220.228477][ T4897]  dump_stack_lvl+0x188/0x250
[  220.233192][ T4897]  ? show_regs_print_info+0x20/0x20
[  220.233861][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  220.238414][ T4897]  ? load_image+0x410/0x410
[  220.252751][ T4897]  ? local_lock_release+0x170/0x170
[  220.257992][ T4897]  ? __rwlock_init+0x140/0x140
[  220.262792][ T4897]  dump_header+0xd9/0x780
[  220.267161][ T4897]  oom_kill_process+0x20e/0x3d0
[  220.272044][ T4897]  out_of_memory+0xdb2/0x1190
[  220.276754][ T4897]  ? mem_cgroup_out_of_memory+0xbd/0x3b0
[  220.282422][ T4897]  ? mutex_lock_io_nested+0x60/0x60
[  220.284016][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  220.287651][ T4897]  ? unregister_oom_notifier+0x20/0x20
[  220.303551][ T4897]  mem_cgroup_out_of_memory+0x2b9/0x3b0
[  220.309128][ T4897]  ? mem_cgroup_oom_trylock+0x210/0x210
[  220.314119][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  220.314704][ T4897]  ? do_raw_spin_unlock+0x11d/0x230
[  220.329710][ T4897]  try_charge_memcg+0x1075/0x15b0
[  220.333883][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  220.334792][ T4897]  ? get_mem_cgroup_from_objcg+0x120/0x120
[  220.350989][ T4897]  ? rcu_lock_acquire+0x30/0x30
[  220.355876][ T4897]  ? __lock_acquire+0x13dc/0x7b50
[  220.360960][ T4897]  obj_cgroup_charge_pages+0x87/0x190
[  220.366407][ T4897]  ? __memcg_kmem_charge_page+0x380/0x380
[  220.372169][ T4897]  ? rcu_lock_acquire+0x30/0x30
[  220.377063][ T4897]  obj_cgroup_charge+0x19f/0x320
[  220.382037][ T4897]  ? mod_objcg_mlstate+0x2e0/0x2e0
[  220.387196][ T4897]  slab_pre_alloc_hook+0x9d/0xc0
[  220.392165][ T4897]  ? __d_alloc+0x27/0x6d0
[  220.393812][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  220.396526][ T4897]  kmem_cache_alloc+0x3d/0x280
[  220.411125][ T4897]  __d_alloc+0x27/0x6d0
[  220.415321][ T4897]  d_alloc+0x46/0x250
[  220.419342][ T4897]  lookup_one_qstr_excl+0xc6/0x240
[  220.424011][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  220.424483][ T4897]  filename_create+0x242/0x450
[  220.439689][ T4897]  ? kern_path_create+0x190/0x190
[  220.443866][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  220.444781][ T4897]  do_mkdirat+0xa5/0x5c0
[  220.458837][ T4897]  ? vfs_mkdir+0x570/0x570
[  220.463297][ T4897]  __x64_sys_mkdirat+0x85/0x90
[  220.468104][ T4897]  do_syscall_64+0x4c/0xa0
[  220.472584][ T4897]  ? clear_bhb_loop+0x30/0x80
[  220.477313][ T4897]  ? clear_bhb_loop+0x30/0x80
[  220.482031][ T4897]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  220.487973][ T4897] RIP: 0033:0x7f7e0dfac159
[  220.492428][ T4897] 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 e8 ff ff ff f7 d8 64 89 01 48
[  220.503999][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  220.512064][ T4897] RSP: 002b:00007ffe6ce73288 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[  220.530927][ T4897] RAX: ffffffffffffffda RBX: 00007f7e0e233fa0 RCX: 00007f7e0dfac159
[  220.538939][ T4897] RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
[  220.544122][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  220.546942][ T4897] RBP: 00007f7e0e04306b R08: 0000000000000000 R09: 0000000000000000
[  220.564744][ T4897] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  220.572749][ T4897] R13: 00007f7e0e233fac R14: 00007f7e0e233fa0 R15: 00007f7e0e233fa0
[  220.580776][ T4897]  </TASK>
[  220.585204][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  220.599435][ T4385] Bluetooth: hci23: command 0x0409 tx timeout
[  220.615509][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  220.643669][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  220.644648][ T4461] Failed to create system directory btrfs
[  220.664414][ T4461] Could not create directory for event update_bytes_may_use
[  220.675815][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  220.694909][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  220.703990][ T4461] Failed to create system directory btrfs
[  220.711340][ T4461] Could not create directory for event btrfs_tree_read_lock_atomic
[  220.723730][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  220.743697][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  220.762806][ T4461] Failed to create system directory btrfs
[  220.769027][ T4461] Could not create directory for event btrfs_try_tree_write_lock
[  220.774034][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  220.804200][ T4461] Failed to create system directory btrfs
[  220.806635][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  220.810241][ T4461] Could not create directory for event btrfs_try_tree_read_lock
[  220.834777][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  220.853654][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  220.868448][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  220.878473][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  220.889104][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  220.899125][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  220.900231][ T4461] Failed to create system directory btrfs
[  220.909705][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  220.909727][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  220.909744][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  220.937039][ T4461] Could not create directory for event btrfs_set_lock_blocking_write
[  220.985273][ T4461] Failed to create system directory btrfs
[  220.991192][ T4461] Could not create directory for event btrfs_set_lock_blocking_read
[  221.001645][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  221.012577][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  221.033681][ T4866] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  221.045111][ T4461] Failed to create system directory btrfs
[  221.048693][ T4866] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  221.051581][ T4461] Could not create directory for event btrfs_tree_read_unlock_blocking
[  221.085441][ T4866] batman_adv: batadv0: Interface activated: batadv_slave_1
[  221.094343][ T4897] memory: usage 96kB, limit 96kB, failcnt 55984
[  221.100637][ T4897] memory+swap: usage 96kB, limit 9007199254740988kB, failcnt 0
[  221.108725][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
[  221.117801][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[  221.137152][ T4866] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[  221.147530][ T4897] kmem: usage 96kB, limit 9007199254740988kB, failcnt 0
[  221.155914][ T4866] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[  221.169974][ T4897] Memory cgroup stats for /syz0/test:
[  221.170126][ T4897] anon 0
[  221.170126][ T4897] file 0
[  221.170126][ T4897] kernel_stack 0
[  221.170126][ T4897] pagetables 0
[  221.170126][ T4897] percpu 0
[  221.170126][ T4897] sock 0
[  221.170126][ T4897] shmem 0
[  221.170126][ T4897] file_mapped 0
[  221.170126][ T4897] file_dirty 0
[  221.170126][ T4897] file_writeback 0
[  221.170126][ T4897] swapcached 0
[  221.170126][ T4897] anon_thp 0
[  221.170126][ T4897] file_thp 0
[  221.170126][ T4897] shmem_thp 0
[  221.170126][ T4897] inactive_anon 0
[  221.170126][ T4897] active_anon 0
[  221.170126][ T4897] inactive_file 0
[  221.170126][ T4897] active_file 0
[  221.170126][ T4897] unevictable 0
[  221.170126][ T4897] slab_reclaimable 94912
[  221.170126][ T4897] slab_unreclaimable 1992
[  221.170126][ T4897] slab 96904
[  221.170126][ T4897] workingset_refault_anon 0
[  221.170126][ T4897] workingset_refault_file 0
[  221.170126][ T4897] workingset_activate_anon 0
[  221.170126][ T4897] workingset_activate_file 0
[  221.173480][ T4461] Failed to create system directory btrfs
[  221.182045][ T4866] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[  221.287697][ T4897] oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=
[  221.287830][ T4461] Could not create directory for event btrfs_tree_read_unlock
[  221.293811][ T4897] test,mems_allowed=0-1,oom_memcg=/syz0/test,task_memcg=/syz0/test,task=syz.0.143,pid=4897,uid=0
[  221.327549][ T4461] Failed to create system directory btrfs
[  221.333447][ T4461] Could not create directory for event btrfs_tree_unlock
[  221.354023][ T4897] Memory cgroup out of memory: Killed process 4897 (syz.0.143) total-vm:44920kB, anon-rss:1324kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000
[  221.373008][ T4866] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[  221.390355][ T4461] Failed to create system directory btrfs
[  221.399231][ T4461] Could not create directory for event btrfs_tree_lock
[  221.429101][ T4461] Failed to create system directory btrfs
[  221.435099][ T4461] Could not create directory for event btrfs_tree_read_lock
[  221.539950][ T4461] Failed to create system directory btrfs
[  221.545831][ T4461] Could not create directory for event btrfs_reserve_ticket
[  221.579755][ T4461] Failed to create system directory btrfs
[  221.585694][ T4461] Could not create directory for event btrfs_fail_all_tickets
[  221.596353][ T4894] chnl_net:caif_netlink_parms(): no params data found
[  221.638981][ T4461] Failed to create system directory btrfs
[  221.645994][ T4409] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[  221.646016][ T4409] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[  221.670357][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[  221.685846][ T4461] Could not create directory for event btrfs_done_preemptive_reclaim
[  221.718944][ T4461] Failed to create system directory btrfs
[  221.725112][ T4461] Could not create directory for event btrfs_convert_extent_bit
[  221.735537][ T4900] syz.0.144 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
[  221.751104][ T4900] CPU: 0 PID: 4900 Comm: syz.0.144 Not tainted syzkaller #0
[  221.758441][ T4900] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  221.768532][ T4900] Call Trace:
[  221.771836][ T4900]  <TASK>
[  221.774791][ T4900]  dump_stack_lvl+0x188/0x250
[  221.779506][ T4900]  ? show_regs_print_info+0x20/0x20
[  221.784743][ T4900]  ? load_image+0x410/0x410
[  221.789286][ T4900]  ? local_lock_release+0x170/0x170
[  221.794524][ T4900]  ? __rwlock_init+0x140/0x140
[  221.799325][ T4900]  dump_header+0xd9/0x780
[  221.803690][ T4900]  oom_kill_process+0x20e/0x3d0
[  221.808573][ T4900]  out_of_memory+0xdb2/0x1190
[  221.813284][ T4900]  ? mem_cgroup_out_of_memory+0xbd/0x3b0
[  221.818951][ T4900]  ? mutex_lock_io_nested+0x60/0x60
[  221.824184][ T4900]  ? unregister_oom_notifier+0x20/0x20
[  221.829687][ T4900]  mem_cgroup_out_of_memory+0x2b9/0x3b0
[  221.835269][ T4900]  ? mem_cgroup_oom_trylock+0x210/0x210
[  221.840879][ T4900]  ? do_raw_spin_unlock+0x11d/0x230
[  221.846113][ T4900]  try_charge_memcg+0x1075/0x15b0
[  221.851191][ T4900]  ? get_mem_cgroup_from_objcg+0x120/0x120
[  221.857033][ T4900]  ? rcu_lock_acquire+0x30/0x30
[  221.861915][ T4900]  ? __lock_acquire+0x13dc/0x7b50
[  221.866991][ T4900]  obj_cgroup_charge_pages+0x87/0x190
[  221.872417][ T4900]  ? __memcg_kmem_charge_page+0x380/0x380
[  221.878172][ T4900]  ? rcu_lock_acquire+0x30/0x30
[  221.883060][ T4900]  obj_cgroup_charge+0x19f/0x320
[  221.888033][ T4900]  ? mod_objcg_mlstate+0x2e0/0x2e0
[  221.893190][ T4900]  slab_pre_alloc_hook+0x9d/0xc0
[  221.898165][ T4900]  ? __d_alloc+0x27/0x6d0
[  221.902559][ T4900]  kmem_cache_alloc+0x3d/0x280
[  221.907357][ T4900]  __d_alloc+0x27/0x6d0
[  221.911551][ T4900]  d_alloc+0x46/0x250
[  221.915568][ T4900]  lookup_one_qstr_excl+0xc6/0x240
[  221.920737][ T4900]  filename_create+0x242/0x450
[  221.925540][ T4900]  ? kern_path_create+0x190/0x190
[  221.930610][ T4900]  do_mkdirat+0xa5/0x5c0
[  221.934906][ T4900]  ? vfs_mkdir+0x570/0x570
[  221.939372][ T4900]  __x64_sys_mkdirat+0x85/0x90
[  221.944181][ T4900]  do_syscall_64+0x4c/0xa0
[  221.948644][ T4900]  ? clear_bhb_loop+0x30/0x80
[  221.953380][ T4900]  ? clear_bhb_loop+0x30/0x80
[  221.958102][ T4900]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  221.964033][ T4900] RIP: 0033:0x7f7e0dfac159
[  221.968481][ T4900] 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 e8 ff ff ff f7 d8 64 89 01 48
[  221.988251][ T4900] RSP: 002b:00007ffe6ce73288 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[  221.996708][ T4900] RAX: ffffffffffffffda RBX: 00007f7e0e233fa0 RCX: 00007f7e0dfac159
[  221.999656][ T4461] Failed to create system directory btrfs
[  222.004712][ T4900] RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
[  222.004732][ T4900] RBP: 00007f7e0e04306b R08: 0000000000000000 R09: 0000000000000000
[  222.004746][ T4900] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  222.004759][ T4900] R13: 00007f7e0e233fac R14: 00007f7e0e233fa0 R15: 00007f7e0e233fa0
[  222.004796][ T4900]  </TASK>
[  222.024046][ T4461] Could not create directory for event btrfs_clear_extent_bit
[  222.077740][  T144] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[  222.087749][ T4900] memory: usage 96kB, limit 96kB, failcnt 56350
[  222.087773][ T4900] memory+swap: usage 96kB, limit 9007199254740988kB, failcnt 0
[  222.087790][ T4900] kmem: usage 96kB, limit 9007199254740988kB, failcnt 0
[  222.087806][ T4900] Memory cgroup stats for /syz0/test:
[  222.088040][ T4900] anon 0
[  222.088040][ T4900] file 0
[  222.088040][ T4900] kernel_stack 0
[  222.088040][ T4900] pagetables 0
[  222.088040][ T4900] percpu 0
[  222.088040][ T4900] sock 0
[  222.088040][ T4900] shmem 0
[  222.088040][ T4900] file_mapped 0
[  222.088040][ T4900] file_dirty 0
[  222.088040][ T4900] file_writeback 0
[  222.088040][ T4900] swapcached 0
[  222.088040][ T4900] anon_thp 0
[  222.088040][ T4900] file_thp 0
[  222.088040][ T4900] shmem_thp 0
[  222.088040][ T4900] inactive_anon 0
[  222.088040][ T4900] active_anon 0
[  222.088040][ T4900] inactive_file 0
[  222.088040][ T4900] active_file 0
[  222.088040][ T4900] unevictable 0
[  222.088040][ T4900] slab_reclaimable 94912
[  222.088040][ T4900] slab_unreclaimable 1992
[  222.088040][ T4900] slab 96904
[  222.088040][ T4900] workingset_refault_anon 0
[  222.088040][ T4900] workingset_refault_file 0
[  222.088040][ T4900] workingset_activate_anon 0
[  222.088040][ T4900] workingset_activate_file 0
[  222.157328][ T4461] Failed to create system directory btrfs
[  222.219474][  T144] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[  222.254780][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
[  222.262648][ T4461] Could not create directory for event btrfs_set_extent_bit
[  222.274931][ T4894] bridge0: port 1(bridge_slave_0) entered blocking state
[  222.282053][ T4894] bridge0: port 1(bridge_slave_0) entered disabled state
[  222.299185][ T4900] oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=test,mems_allowed=0-1,oom_memcg=/syz0/test,task_memcg=/syz0/test,task=syz.0.144,pid=4900,uid=0
[  222.316495][ T4894] device bridge_slave_0 entered promiscuous mode
[  222.343894][ T4461] Failed to create system directory btrfs
[  222.349789][ T4461] Could not create directory for event btrfs_skip_unused_block_group
[  222.359281][ T4894] bridge0: port 2(bridge_slave_1) entered blocking state
[  222.383817][ T4894] bridge0: port 2(bridge_slave_1) entered disabled state
[  222.408860][ T4461] Failed to create system directory btrfs
[  222.414841][ T4461] Could not create directory for event btrfs_reclaim_block_group
[  222.418377][ T4894] device bridge_slave_1 entered promiscuous mode
[  222.449904][ T4461] Failed to create system directory btrfs
[  222.455876][ T4461] Could not create directory for event btrfs_add_reclaim_block_group
[  222.483527][ T4461] Failed to create system directory btrfs
[  222.489534][ T4461] Could not create directory for event btrfs_add_unused_block_group
[  222.501055][ T4900] Memory cgroup out of memory: Killed process 4900 (syz.0.144) total-vm:44920kB, anon-rss:1324kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000
[  222.540210][ T4461] Failed to create system directory btrfs
[  222.545440][ T4894] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[  222.556495][ T4461] Could not create directory for event btrfs_remove_block_group
[  222.591061][ T4894] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[  222.640126][ T4905] syz.0.145 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
[  222.667583][ T4894] team0: Port device team_slave_0 added
[  222.673869][ T4905] CPU: 0 PID: 4905 Comm: syz.0.145 Not tainted syzkaller #0
[  222.677475][ T4461] Failed to create system directory btrfs
[  222.681208][ T4905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  222.697049][ T4905] Call Trace:
[  222.698370][ T4894] team0: Port device team_slave_1 added
[  222.700362][ T4905]  <TASK>
[  222.700374][ T4905]  dump_stack_lvl+0x188/0x250
[  222.700405][ T4905]  ? show_regs_print_info+0x20/0x20
[  222.700427][ T4905]  ? load_image+0x410/0x410
[  222.700451][ T4905]  ? local_lock_release+0x170/0x170
[  222.700475][ T4905]  ? __rwlock_init+0x140/0x140
[  222.700503][ T4905]  dump_header+0xd9/0x780
[  222.700529][ T4905]  oom_kill_process+0x20e/0x3d0
[  222.700557][ T4905]  out_of_memory+0xdb2/0x1190
[  222.700578][ T4905]  ? mem_cgroup_out_of_memory+0xbd/0x3b0
[  222.700606][ T4905]  ? mutex_lock_io_nested+0x60/0x60
[  222.700636][ T4905]  ? unregister_oom_notifier+0x20/0x20
[  222.700671][ T4905]  mem_cgroup_out_of_memory+0x2b9/0x3b0
[  222.700696][ T4905]  ? mem_cgroup_oom_trylock+0x210/0x210
[  222.700729][ T4905]  ? do_raw_spin_unlock+0x11d/0x230
[  222.700756][ T4905]  try_charge_memcg+0x1075/0x15b0
[  222.700795][ T4905]  ? get_mem_cgroup_from_objcg+0x120/0x120
[  222.700820][ T4905]  ? rcu_lock_acquire+0x30/0x30
[  222.700848][ T4905]  ? __lock_acquire+0x13dc/0x7b50
[  222.700894][ T4905]  obj_cgroup_charge_pages+0x87/0x190
[  222.700917][ T4905]  ? __memcg_kmem_charge_page+0x380/0x380
[  222.700944][ T4905]  ? rcu_lock_acquire+0x30/0x30
[  222.700971][ T4905]  obj_cgroup_charge+0x19f/0x320
[  222.700997][ T4905]  ? mod_objcg_mlstate+0x2e0/0x2e0
[  222.701035][ T4905]  slab_pre_alloc_hook+0x9d/0xc0
[  222.701058][ T4905]  ? __d_alloc+0x27/0x6d0
[  222.701080][ T4905]  kmem_cache_alloc+0x3d/0x280
[  222.701107][ T4905]  __d_alloc+0x27/0x6d0
[  222.701134][ T4905]  d_alloc+0x46/0x250
[  222.701159][ T4905]  lookup_one_qstr_excl+0xc6/0x240
[  222.701186][ T4905]  filename_create+0x242/0x450
[  222.701218][ T4905]  ? kern_path_create+0x190/0x190
[  222.701252][ T4905]  do_mkdirat+0xa5/0x5c0
[  222.701280][ T4905]  ? vfs_mkdir+0x570/0x570
[  222.701313][ T4905]  __x64_sys_mkdirat+0x85/0x90
[  222.701339][ T4905]  do_syscall_64+0x4c/0xa0
[  222.701368][ T4905]  ? clear_bhb_loop+0x30/0x80
[  222.701391][ T4905]  ? clear_bhb_loop+0x30/0x80
[  222.701417][ T4905]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  222.701441][ T4905] RIP: 0033:0x7f7e0dfac159
[  222.701462][ T4905] 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 e8 ff ff ff f7 d8 64 89 01 48
[  222.701482][ T4905] RSP: 002b:00007ffe6ce73288 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[  222.701508][ T4905] RAX: ffffffffffffffda RBX: 00007f7e0e233fa0 RCX: 00007f7e0dfac159
[  222.701526][ T4905] RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
[  222.701542][ T4905] RBP: 00007f7e0e04306b R08: 0000000000000000 R09: 0000000000000000
[  222.701557][ T4905] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  222.701572][ T4905] R13: 00007f7e0e233fac R14: 00007f7e0e233fa0 R15: 00007f7e0e233fa0
[  222.701606][ T4905]  </TASK>
[  222.709149][ T4223] Bluetooth: hci23: command 0x041b tx timeout
[  222.727062][ T4461] Could not create directory for event btrfs_inode_mod_outstanding_extents
[  222.752240][ T4905] memory: usage 96kB, limit 96kB, failcnt 56617
[  222.955079][ T4894] batman_adv: batadv0: Adding interface: batadv_slave_0
[  223.018068][ T4905] memory+swap: usage 96kB, limit 9007199254740988kB, failcnt 0
[  223.035843][ T4905] kmem: usage 96kB, limit 9007199254740988kB, failcnt 0
[  223.052567][ T4905] Memory cgroup stats for /syz0/test:
[  223.052721][ T4905] anon 0
[  223.052721][ T4905] file 0
[  223.052721][ T4905] kernel_stack 0
[  223.052721][ T4905] pagetables 0
[  223.052721][ T4905] percpu 0
[  223.052721][ T4905] sock 0
[  223.052721][ T4905] shmem 0
[  223.052721][ T4905] file_mapped 0
[  223.052721][ T4905] file_dirty 0
[  223.052721][ T4905] file_writeback 0
[  223.052721][ T4905] swapcached 0
[  223.052721][ T4905] anon_thp 0
[  223.052721][ T4905] file_thp 0
[  223.052721][ T4905] shmem_thp 0
[  223.052721][ T4905] inactive_anon 0
[  223.052721][ T4905] active_anon 0
[  223.052721][ T4905] inactive_file 0
[  223.052721][ T4905] active_file 0
[  223.052721][ T4905] unevictable 0
[  223.052721][ T4905] slab_reclaimable 94912
[  223.052721][ T4905] slab_unreclaimable 1992
[  223.052721][ T4905] slab 96904
[  223.052721][ T4905] workingset_refault_anon 0
[  223.052721][ T4905] workingset_refault_file 0
[  223.052721][ T4905] workingset_activate_anon 0
[  223.052721][ T4905] workingset_activate_file 0
[  223.134541][ T4461] Failed to create system directory btrfs
[  223.166704][ T4894] 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.
[  223.167103][ T4461] Could not create directory for event btrfs_prelim_ref_insert
[  223.203717][ T4905] oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=test,mems_allowed=0-1,oom_memcg=/syz0/test,task_memcg=/syz0/test,task=syz.0.145,pid=4905,uid=0
[  223.224326][ T4894] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[  223.237948][ T4894] batman_adv: batadv0: Adding interface: batadv_slave_1
[  223.245106][ T4894] 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.
[  223.273418][ T4894] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[  223.285297][ T4905] Memory cgroup out of memory: Killed process 4905 (syz.0.145) total-vm:44920kB, anon-rss:1324kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000
[  223.330801][ T4461] Failed to create system directory btrfs
2026/09/20 06:04:46 executed programs: 138
[  223.346911][ T4461] Could not create directory for event btrfs_prelim_ref_merge
[  223.430970][ T4894] device hsr_slave_0 entered promiscuous mode
[  223.438195][ T4907] syz.0.146 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
[  223.466848][ T4907] CPU: 1 PID: 4907 Comm: syz.0.146 Not tainted syzkaller #0
[  223.474217][ T4907] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  223.484318][ T4907] Call Trace:
[  223.487623][ T4907]  <TASK>
[  223.490577][ T4907]  dump_stack_lvl+0x188/0x250
[  223.495311][ T4907]  ? show_regs_print_info+0x20/0x20
[  223.500542][ T4907]  ? load_image+0x410/0x410
[  223.505091][ T4907]  ? local_lock_release+0x170/0x170
[  223.510345][ T4907]  ? __rwlock_init+0x140/0x140
[  223.515134][ T4907]  dump_header+0xd9/0x780
[  223.519495][ T4907]  oom_kill_process+0x20e/0x3d0
[  223.524375][ T4907]  out_of_memory+0xdb2/0x1190
[  223.529084][ T4907]  ? mem_cgroup_out_of_memory+0xbd/0x3b0
[  223.534761][ T4907]  ? mutex_lock_io_nested+0x60/0x60
[  223.540000][ T4907]  ? unregister_oom_notifier+0x20/0x20
[  223.540212][ T4461] Failed to create system directory btrfs
[  223.545497][ T4907]  mem_cgroup_out_of_memory+0x2b9/0x3b0
[  223.545525][ T4907]  ? mem_cgroup_oom_trylock+0x210/0x210
[  223.562388][ T4907]  ? do_raw_spin_unlock+0x11d/0x230
[  223.567619][ T4907]  try_charge_memcg+0x1075/0x15b0
[  223.572691][ T4907]  ? get_mem_cgroup_from_objcg+0x120/0x120
[  223.578541][ T4907]  ? rcu_lock_acquire+0x30/0x30
[  223.583432][ T4907]  ? __lock_acquire+0x13dc/0x7b50
[  223.588511][ T4907]  obj_cgroup_charge_pages+0x87/0x190
[  223.590948][ T4461] Could not create directory for event qgroup_meta_free_all_pertrans
[  223.593911][ T4907]  ? __memcg_kmem_charge_page+0x380/0x380
[  223.593942][ T4907]  ? rcu_lock_acquire+0x30/0x30
[  223.593968][ T4907]  obj_cgroup_charge+0x19f/0x320
[  223.617564][ T4907]  ? mod_objcg_mlstate+0x2e0/0x2e0
[  223.622725][ T4907]  slab_pre_alloc_hook+0x9d/0xc0
[  223.627697][ T4907]  ? __d_alloc+0x27/0x6d0
[  223.632059][ T4907]  kmem_cache_alloc+0x3d/0x280
[  223.636887][ T4907]  __d_alloc+0x27/0x6d0
[  223.641080][ T4907]  d_alloc+0x46/0x250
[  223.645093][ T4907]  lookup_one_qstr_excl+0xc6/0x240
[  223.650242][ T4907]  filename_create+0x242/0x450
[  223.655046][ T4907]  ? kern_path_create+0x190/0x190
[  223.660110][ T4907]  do_mkdirat+0xa5/0x5c0
[  223.664391][ T4907]  ? vfs_mkdir+0x570/0x570
[  223.668857][ T4907]  __x64_sys_mkdirat+0x85/0x90
[  223.673655][ T4907]  do_syscall_64+0x4c/0xa0
[  223.678097][ T4907]  ? clear_bhb_loop+0x30/0x80
[  223.682978][ T4907]  ? clear_bhb_loop+0x30/0x80
[  223.687704][ T4907]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  223.693664][ T4907] RIP: 0033:0x7f7e0dfac159
[  223.698115][ T4907] 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 e8 ff ff ff f7 d8 64 89 01 48
[  223.717751][ T4907] RSP: 002b:00007ffe6ce73288 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[  223.726203][ T4907] RAX: ffffffffffffffda RBX: 00007f7e0e233fa0 RCX: 00007f7e0dfac159
[  223.734225][ T4907] RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
[  223.742229][ T4907] RBP: 00007f7e0e04306b R08: 0000000000000000 R09: 0000000000000000
[  223.750235][ T4907] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  223.758236][ T4907] R13: 00007f7e0e233fac R14: 00007f7e0e233fa0 R15: 00007f7e0e233fa0
[  223.766283][ T4907]  </TASK>
[  223.780111][ T4894] device hsr_slave_1 entered promiscuous mode
[  223.787793][ T4894] debugfs: Directory 'hsr0' with parent 'hsr' already present!
[  223.796208][ T4894] Cannot create hsr debugfs directory
[  223.837777][ T4461] Failed to create system directory btrfs
[  223.862547][ T4461] Could not create directory for event qgroup_meta_convert
[  223.897295][ T4907] memory: usage 96kB, limit 96kB, failcnt 56804
[  223.927325][ T4907] memory+swap: usage 96kB, limit 9007199254740988kB, failcnt 0
[  223.972048][ T4461] Failed to create system directory btrfs
[  223.983760][ T4907] kmem: usage 96kB, limit 9007199254740988kB, failcnt 0
[  223.993969][ T4461] Could not create directory for event qgroup_meta_reserve
[  224.013704][ T4907] Memory cgroup stats for /syz0/test:
[  224.013899][ T4907] anon 0
[  224.013899][ T4907] file 0
[  224.013899][ T4907] kernel_stack 0
[  224.013899][ T4907] pagetables 0
[  224.013899][ T4907] percpu 0
[  224.013899][ T4907] sock 0
[  224.013899][ T4907] shmem 0
[  224.013899][ T4907] file_mapped 0
[  224.013899][ T4907] file_dirty 0
[  224.013899][ T4907] file_writeback 0
[  224.013899][ T4907] swapcached 0
[  224.013899][ T4907] anon_thp 0
[  224.013899][ T4907] file_thp 0
[  224.013899][ T4907] shmem_thp 0
[  224.013899][ T4907] inactive_anon 0
[  224.013899][ T4907] active_anon 0
[  224.013899][ T4907] inactive_file 0
[  224.013899][ T4907] active_file 0
[  224.013899][ T4907] unevictable 0
[  224.013899][ T4907] slab_reclaimable 94912
[  224.013899][ T4907] slab_unreclaimable 1992
[  224.013899][ T4907] slab 96904
[  224.013899][ T4907] workingset_refault_anon 0
[  224.013899][ T4907] workingset_refault_file 0
[  224.013899][ T4907] workingset_activate_anon 0
[  224.013899][ T4907] workingset_activate_file 0
[  224.117413][ T4461] Failed to create system directory btrfs
[  224.123347][ T4461] Could not create directory for event qgroup_update_reserve
[  224.138452][ T4894] netdevsim netdevsim3 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  224.164888][ T4907] oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=test,mems_allowed=0-1,oom_memcg=/syz0/test,task_memcg=/syz0/test,task=syz.0.146,pid=4907,uid=0
[  224.248337][ T4894] netdevsim netdevsim3 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  224.253823][ T4907] Memory cgroup out of memory: Killed process 4907 (syz.0.146) total-vm:44920kB, anon-rss:1324kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000
[  224.279730][ T4908] chnl_net:caif_netlink_parms(): no params data found
[  224.326550][ T4461] Failed to create system directory btrfs
[  224.332433][ T4461] Could not create directory for event qgroup_update_counters
[  224.375752][ T4894] netdevsim netdevsim3 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  224.411056][ T4461] Failed to create system directory btrfs
[  224.422903][ T4461] Could not create directory for event btrfs_qgroup_account_extent
[  224.450426][ T4914] syz.0.148 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
[  224.483960][ T4914] CPU: 1 PID: 4914 Comm: syz.0.148 Not tainted syzkaller #0
[  224.491357][ T4914] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  224.501444][ T4914] Call Trace:
[  224.504750][ T4914]  <TASK>
[  224.507710][ T4914]  dump_stack_lvl+0x188/0x250
[  224.512438][ T4914]  ? show_regs_print_info+0x20/0x20
[  224.509507][ T4908] bridge0: port 1(bridge_slave_0) entered blocking state
[  224.517664][ T4914]  ? load_image+0x410/0x410
[  224.529216][ T4914]  ? local_lock_release+0x170/0x170
[  224.534457][ T4914]  ? __rwlock_init+0x140/0x140
[  224.535410][ T4908] bridge0: port 1(bridge_slave_0) entered disabled state
[  224.539254][ T4914]  dump_header+0xd9/0x780
[  224.550616][ T4914]  oom_kill_process+0x20e/0x3d0
[  224.555506][ T4914]  out_of_memory+0xdb2/0x1190
[  224.560229][ T4914]  ? mem_cgroup_out_of_memory+0xbd/0x3b0
[  224.565923][ T4914]  ? mutex_lock_io_nested+0x60/0x60
[  224.571249][ T4914]  ? unregister_oom_notifier+0x20/0x20
[  224.576746][ T4914]  mem_cgroup_out_of_memory+0x2b9/0x3b0
[  224.582330][ T4914]  ? mem_cgroup_oom_trylock+0x210/0x210
[  224.587913][ T4914]  ? do_raw_spin_unlock+0x11d/0x230
[  224.593143][ T4914]  try_charge_memcg+0x1075/0x15b0
[  224.598212][ T4914]  ? get_mem_cgroup_from_objcg+0x120/0x120
[  224.604048][ T4914]  ? rcu_lock_acquire+0x30/0x30
[  224.605129][ T4908] device bridge_slave_0 entered promiscuous mode
[  224.608937][ T4914]  ? __lock_acquire+0x13dc/0x7b50
[  224.609008][ T4914]  obj_cgroup_charge_pages+0x87/0x190
[  224.625748][ T4914]  ? __memcg_kmem_charge_page+0x380/0x380
[  224.631501][ T4914]  ? rcu_lock_acquire+0x30/0x30
[  224.636386][ T4914]  obj_cgroup_charge+0x19f/0x320
[  224.641354][ T4914]  ? mod_objcg_mlstate+0x2e0/0x2e0
[  224.642912][ T4908] bridge0: port 2(bridge_slave_1) entered blocking state
[  224.646503][ T4914]  slab_pre_alloc_hook+0x9d/0xc0
[  224.646528][ T4914]  ? __d_alloc+0x27/0x6d0
[  224.646550][ T4914]  kmem_cache_alloc+0x3d/0x280
[  224.646577][ T4914]  __d_alloc+0x27/0x6d0
[  224.646601][ T4914]  d_alloc+0x46/0x250
[  224.646625][ T4914]  lookup_one_qstr_excl+0xc6/0x240
[  224.646653][ T4914]  filename_create+0x242/0x450
[  224.646691][ T4914]  ? kern_path_create+0x190/0x190
[  224.646726][ T4914]  do_mkdirat+0xa5/0x5c0
[  224.646752][ T4914]  ? vfs_mkdir+0x570/0x570
[  224.646785][ T4914]  __x64_sys_mkdirat+0x85/0x90
[  224.646811][ T4914]  do_syscall_64+0x4c/0xa0
[  224.646832][ T4914]  ? clear_bhb_loop+0x30/0x80
[  224.646854][ T4914]  ? clear_bhb_loop+0x30/0x80
[  224.646878][ T4914]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  224.646902][ T4914] RIP: 0033:0x7f7e0dfac159
[  224.646922][ T4914] 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 e8 ff ff ff f7 d8 64 89 01 48
[  224.646939][ T4914] RSP: 002b:00007ffe6ce73288 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[  224.646964][ T4914] RAX: ffffffffffffffda RBX: 00007f7e0e233fa0 RCX: 00007f7e0dfac159
[  224.646981][ T4914] RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
[  224.646998][ T4914] RBP: 00007f7e0e04306b R08: 0000000000000000 R09: 0000000000000000
[  224.647025][ T4914] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  224.647039][ T4914] R13: 00007f7e0e233fac R14: 00007f7e0e233fa0 R15: 00007f7e0e233fa0
[  224.647071][ T4914]  </TASK>
[  224.716711][ T4461] Failed to create system directory btrfs
[  224.741059][ T4908] bridge0: port 2(bridge_slave_1) entered disabled state
[  224.819747][ T4385] Bluetooth: hci23: command 0x040f tx timeout
[  224.828374][ T4908] device bridge_slave_1 entered promiscuous mode
[  224.865754][ T4914] memory: usage 96kB, limit 96kB, failcnt 57013
[  224.872252][ T4914] memory+swap: usage 96kB, limit 9007199254740988kB, failcnt 0
[  224.886751][ T4914] kmem: usage 96kB, limit 9007199254740988kB, failcnt 0
[  224.894908][ T4914] Memory cgroup stats for /syz0/test:
[  224.895059][ T4914] anon 0
[  224.895059][ T4914] file 0
[  224.895059][ T4914] kernel_stack 0
[  224.895059][ T4914] pagetables 0
[  224.895059][ T4914] percpu 0
[  224.895059][ T4914] sock 0
[  224.895059][ T4914] shmem 0
[  224.895059][ T4914] file_mapped 0
[  224.895059][ T4914] file_dirty 0
[  224.895059][ T4914] file_writeback 0
[  224.895059][ T4914] swapcached 0
[  224.895059][ T4914] anon_thp 0
[  224.895059][ T4914] file_thp 0
[  224.895059][ T4914] shmem_thp 0
[  224.895059][ T4914] inactive_anon 0
[  224.895059][ T4914] active_anon 0
[  224.895059][ T4914] inactive_file 0
[  224.895059][ T4914] active_file 0
[  224.895059][ T4914] unevictable 0
[  224.895059][ T4914] slab_reclaimable 94912
[  224.895059][ T4914] slab_unreclaimable 1992
[  224.895059][ T4914] slab 96904
[  224.895059][ T4914] workingset_refault_anon 0
[  224.895059][ T4914] workingset_refault_file 0
[  224.895059][ T4914] workingset_activate_anon 0
[  224.895059][ T4914] workingset_activate_file 0
[  225.006394][ T4908] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[  225.018412][ T4461] Could not create directory for event qgroup_num_dirty_extents
[  225.045881][ T4894] netdevsim netdevsim3 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  225.067512][ T4908] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[  225.086581][ T4461] Failed to create system directory btrfs
[  225.092370][ T4461] Could not create directory for event btrfs_qgroup_trace_extent
[  225.119170][ T4908] team0: Port device team_slave_0 added
[  225.139839][ T4908] team0: Port device team_slave_1 added
[  225.189718][ T4461] Failed to create system directory btrfs
[  225.196842][ T4908] batman_adv: batadv0: Adding interface: batadv_slave_0
[  225.203857][ T4461] Could not create directory for event btrfs_qgroup_account_extents
[  225.212142][ T4908] 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.
[  225.242688][ T4908] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[  225.269495][ T4908] batman_adv: batadv0: Adding interface: batadv_slave_1
[  225.276846][ T4908] 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.
[  225.303486][ T4461] Failed to create system directory btrfs
[  225.309514][ T4914] oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=test,mems_allowed=0-1,oom_memcg=/syz0/test,task_memcg=/syz0/test,task=syz.0.148,pid=4914,uid=0
[  225.326493][ T4908] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[  225.339940][ T4894] netdevsim netdevsim3 netdevsim0: renamed from eth0
[  225.349281][ T4461] Could not create directory for event btrfs_qgroup_release_data
[  225.381589][ T4914] Memory cgroup out of memory: Killed process 4914 (syz.0.148) total-vm:44920kB, anon-rss:1324kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000
[  225.407809][ T4894] netdevsim netdevsim3 netdevsim1: renamed from eth1
[  225.427079][ T4894] netdevsim netdevsim3 netdevsim2: renamed from eth2
[  225.445654][ T4908] device hsr_slave_0 entered promiscuous mode
[  225.461556][ T4461] Failed to create system directory btrfs
[  225.470739][ T4461] Could not create directory for event btrfs_qgroup_reserve_data
[  225.484852][ T4908] device hsr_slave_1 entered promiscuous mode
[  225.491156][ T4467] Bluetooth: hci24: command 0x0409 tx timeout
[  225.498712][ T4908] debugfs: Directory 'hsr0' with parent 'hsr' already present!
[  225.511279][ T4908] Cannot create hsr debugfs directory
[  225.522196][ T4894] netdevsim netdevsim3 netdevsim3: renamed from eth3
[  225.555298][ T4461] Failed to create system directory btrfs
[  225.561340][ T4461] Could not create directory for event btrfs_workqueue_destroy
[  225.591518][ T4916] syz.0.149 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
[  225.603990][ T4916] CPU: 0 PID: 4916 Comm: syz.0.149 Not tainted syzkaller #0
[  225.611336][ T4916] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  225.621433][ T4916] Call Trace:
[  225.624745][ T4916]  <TASK>
[  225.627707][ T4916]  dump_stack_lvl+0x188/0x250
[  225.632471][ T4916]  ? show_regs_print_info+0x20/0x20
[  225.637717][ T4916]  ? load_image+0x410/0x410
[  225.642258][ T4916]  ? local_lock_release+0x170/0x170
[  225.647489][ T4916]  ? __rwlock_init+0x140/0x140
[  225.652290][ T4916]  dump_header+0xd9/0x780
[  225.656658][ T4916]  oom_kill_process+0x20e/0x3d0
[  225.661552][ T4916]  out_of_memory+0xdb2/0x1190
[  225.666261][ T4916]  ? mem_cgroup_out_of_memory+0xbd/0x3b0
[  225.671937][ T4916]  ? mutex_lock_io_nested+0x60/0x60
[  225.677177][ T4916]  ? unregister_oom_notifier+0x20/0x20
[  225.682682][ T4916]  mem_cgroup_out_of_memory+0x2b9/0x3b0
[  225.688262][ T4916]  ? mem_cgroup_oom_trylock+0x210/0x210
[  225.693848][ T4916]  ? do_raw_spin_unlock+0x11d/0x230
[  225.699093][ T4916]  try_charge_memcg+0x1075/0x15b0
[  225.704181][ T4916]  ? get_mem_cgroup_from_objcg+0x120/0x120
[  225.710024][ T4916]  ? rcu_lock_acquire+0x30/0x30
[  225.714922][ T4916]  ? __lock_acquire+0x13dc/0x7b50
[  225.720009][ T4916]  obj_cgroup_charge_pages+0x87/0x190
[  225.725421][ T4916]  ? __memcg_kmem_charge_page+0x380/0x380
[  225.731179][ T4916]  ? rcu_lock_acquire+0x30/0x30
[  225.736104][ T4916]  obj_cgroup_charge+0x19f/0x320
[  225.741074][ T4916]  ? mod_objcg_mlstate+0x2e0/0x2e0
[  225.746230][ T4916]  slab_pre_alloc_hook+0x9d/0xc0
[  225.751227][ T4916]  ? __d_alloc+0x27/0x6d0
[  225.755591][ T4916]  kmem_cache_alloc+0x3d/0x280
[  225.760390][ T4916]  __d_alloc+0x27/0x6d0
[  225.764610][ T4916]  d_alloc+0x46/0x250
[  225.768629][ T4916]  lookup_one_qstr_excl+0xc6/0x240
[  225.773775][ T4916]  filename_create+0x242/0x450
[  225.778582][ T4916]  ? kern_path_create+0x190/0x190
[  225.783663][ T4916]  do_mkdirat+0xa5/0x5c0
[  225.787966][ T4916]  ? vfs_mkdir+0x570/0x570
[  225.792430][ T4916]  __x64_sys_mkdirat+0x85/0x90
[  225.797251][ T4916]  do_syscall_64+0x4c/0xa0
[  225.801710][ T4916]  ? clear_bhb_loop+0x30/0x80
[  225.806419][ T4916]  ? clear_bhb_loop+0x30/0x80
[  225.811201][ T4916]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  225.817126][ T4916] RIP: 0033:0x7f7e0dfac159
[  225.821589][ T4916] 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 e8 ff ff ff f7 d8 64 89 01 48
[  225.841226][ T4916] RSP: 002b:00007ffe6ce73288 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[  225.849677][ T4916] RAX: ffffffffffffffda RBX: 00007f7e0e233fa0 RCX: 00007f7e0dfac159
[  225.857681][ T4916] RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
[  225.865688][ T4916] RBP: 00007f7e0e04306b R08: 0000000000000000 R09: 0000000000000000
[  225.873713][ T4916] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  225.881720][ T4916] R13: 00007f7e0e233fac R14: 00007f7e0e233fa0 R15: 00007f7e0e233fa0
[  225.889747][ T4916]  </TASK>
[  225.910623][ T4916] memory: usage 96kB, limit 96kB, failcnt 57255
[  225.922804][ T4461] Failed to create system directory btrfs
[  225.928844][ T4916] memory+swap: usage 96kB, limit 9007199254740988kB, failcnt 0
[  225.936970][ T4461] Could not create directory for event btrfs_workqueue_alloc
[  225.944823][ T4916] kmem: usage 96kB, limit 9007199254740988kB, failcnt 0
[  225.951800][ T4916] Memory cgroup stats for /syz0/test:
[  225.951969][ T4916] anon 0
[  225.951969][ T4916] file 0
[  225.951969][ T4916] kernel_stack 0
[  225.951969][ T4916] pagetables 0
[  225.951969][ T4916] percpu 0
[  225.951969][ T4916] sock 0
[  225.951969][ T4916] shmem 0
[  225.951969][ T4916] file_mapped 0
[  225.951969][ T4916] file_dirty 0
[  225.951969][ T4916] file_writeback 0
[  225.951969][ T4916] swapcached 0
[  225.951969][ T4916] anon_thp 0
[  225.951969][ T4916] file_thp 0
[  225.951969][ T4916] shmem_thp 0
[  225.951969][ T4916] inactive_anon 0
[  225.951969][ T4916] active_anon 0
[  225.951969][ T4916] inactive_file 0
[  225.951969][ T4916] active_file 0
[  225.951969][ T4916] unevictable 0
[  225.951969][ T4916] slab_reclaimable 94912
[  225.951969][ T4916] slab_unreclaimable 1992
[  225.951969][ T4916] slab 96904
[  225.951969][ T4916] workingset_refault_anon 0
[  225.951969][ T4916] workingset_refault_file 0
[  225.951969][ T4916] workingset_activate_anon 0
[  225.951969][ T4916] workingset_activate_file 0
[  226.102977][ T4461] Failed to create system directory btrfs
[  226.116785][ T4461] Could not create directory for event btrfs_ordered_sched
[  226.155521][ T4461] Failed to create system directory btrfs
[  226.161392][ T4461] Could not create directory for event btrfs_all_work_done
[  226.173918][ T4916] oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=test,mems_allowed=0-1,oom_memcg=/syz0/test,task_memcg=/syz0/test,task=syz.0.149,pid=4916,uid=0
[  226.211449][ T4461] Failed to create system directory btrfs
[  226.217429][ T4461] Could not create directory for event btrfs_work_sched
[  226.225223][ T4916] Memory cgroup out of memory: Killed process 4916 (syz.0.149) total-vm:44920kB, anon-rss:1324kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000
[  226.225341][ T4908] netdevsim netdevsim5 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  226.270523][ T4461] Failed to create system directory btrfs
[  226.289674][ T4461] Could not create directory for event btrfs_work_queued
[  226.327457][ T4917] syz.0.150 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
[  226.340022][ T4917] CPU: 1 PID: 4917 Comm: syz.0.150 Not tainted syzkaller #0
[  226.347367][ T4917] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  226.357464][ T4917] Call Trace:
[  226.360841][ T4917]  <TASK>
[  226.363828][ T4917]  dump_stack_lvl+0x188/0x250
[  226.368546][ T4917]  ? show_regs_print_info+0x20/0x20
[  226.373770][ T4917]  ? load_image+0x410/0x410
[  226.378306][ T4917]  ? local_lock_release+0x170/0x170
[  226.383544][ T4917]  ? __rwlock_init+0x140/0x140
[  226.388467][ T4917]  dump_header+0xd9/0x780
[  226.392836][ T4917]  oom_kill_process+0x20e/0x3d0
[  226.397721][ T4917]  out_of_memory+0xdb2/0x1190
[  226.402436][ T4917]  ? mem_cgroup_out_of_memory+0xbd/0x3b0
[  226.408109][ T4917]  ? mutex_lock_io_nested+0x60/0x60
[  226.413364][ T4917]  ? unregister_oom_notifier+0x20/0x20
[  226.418859][ T4917]  mem_cgroup_out_of_memory+0x2b9/0x3b0
[  226.424463][ T4917]  ? mem_cgroup_oom_trylock+0x210/0x210
[  226.430056][ T4917]  ? do_raw_spin_unlock+0x11d/0x230
[  226.435293][ T4917]  try_charge_memcg+0x1075/0x15b0
[  226.440369][ T4917]  ? get_mem_cgroup_from_objcg+0x120/0x120
[  226.446213][ T4917]  ? rcu_lock_acquire+0x30/0x30
[  226.451100][ T4917]  ? __lock_acquire+0x13dc/0x7b50
[  226.456175][ T4917]  obj_cgroup_charge_pages+0x87/0x190
[  226.461580][ T4917]  ? __memcg_kmem_charge_page+0x380/0x380
[  226.467354][ T4917]  ? rcu_lock_acquire+0x30/0x30
[  226.472241][ T4917]  obj_cgroup_charge+0x19f/0x320
[  226.477213][ T4917]  ? mod_objcg_mlstate+0x2e0/0x2e0
[  226.482371][ T4917]  slab_pre_alloc_hook+0x9d/0xc0
[  226.487337][ T4917]  ? __d_alloc+0x27/0x6d0
[  226.491696][ T4917]  kmem_cache_alloc+0x3d/0x280
[  226.496499][ T4917]  __d_alloc+0x27/0x6d0
[  226.500692][ T4917]  d_alloc+0x46/0x250
[  226.504711][ T4917]  lookup_one_qstr_excl+0xc6/0x240
[  226.509853][ T4917]  filename_create+0x242/0x450
[  226.514652][ T4917]  ? kern_path_create+0x190/0x190
[  226.519716][ T4917]  do_mkdirat+0xa5/0x5c0
[  226.523998][ T4917]  ? vfs_mkdir+0x570/0x570
[  226.527279][ T4894] 8021q: adding VLAN 0 to HW filter on device bond0
[  226.528454][ T4917]  __x64_sys_mkdirat+0x85/0x90
[  226.539826][ T4917]  do_syscall_64+0x4c/0xa0
[  226.544274][ T4917]  ? clear_bhb_loop+0x30/0x80
[  226.548976][ T4917]  ? clear_bhb_loop+0x30/0x80
[  226.553683][ T4917]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  226.557898][ T4461] Failed to create system directory btrfs
[  226.559614][ T4917] RIP: 0033:0x7f7e0dfac159
[  226.569778][ T4917] 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 e8 ff ff ff f7 d8 64 89 01 48
[  226.589413][ T4917] RSP: 002b:00007ffe6ce73288 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[  226.597875][ T4917] RAX: ffffffffffffffda RBX: 00007f7e0e233fa0 RCX: 00007f7e0dfac159
[  226.605885][ T4917] RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
[  226.613889][ T4917] RBP: 00007f7e0e04306b R08: 0000000000000000 R09: 0000000000000000
[  226.621905][ T4917] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  226.629905][ T4917] R13: 00007f7e0e233fac R14: 00007f7e0e233fa0 R15: 00007f7e0e233fa0
[  226.637937][ T4917]  </TASK>
[  226.643466][ T4461] Could not create directory for event free_extent_state
[  226.682745][ T4908] netdevsim netdevsim5 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  226.700111][ T4917] memory: usage 96kB, limit 96kB, failcnt 57490
[  226.706875][ T4917] memory+swap: usage 96kB, limit 9007199254740988kB, failcnt 0
[  226.707139][ T4443] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[  226.714659][ T4917] kmem: usage 96kB, limit 9007199254740988kB, failcnt 0
[  226.729271][ T4917] Memory cgroup stats for /syz0/test:
[  226.729398][ T4917] anon 0
[  226.729398][ T4917] file 0
[  226.729398][ T4917] kernel_stack 0
[  226.729398][ T4917] pagetables 0
[  226.729398][ T4917] percpu 0
[  226.729398][ T4917] sock 0
[  226.729398][ T4917] shmem 0
[  226.729398][ T4917] file_mapped 0
[  226.729398][ T4917] file_dirty 0
[  226.729398][ T4917] file_writeback 0
[  226.729398][ T4917] swapcached 0
[  226.729398][ T4917] anon_thp 0
[  226.729398][ T4917] file_thp 0
[  226.729398][ T4917] shmem_thp 0
[  226.729398][ T4917] inactive_anon 0
[  226.729398][ T4917] active_anon 0
[  226.729398][ T4917] inactive_file 0
[  226.729398][ T4917] active_file 0
[  226.729398][ T4917] unevictable 0
[  226.729398][ T4917] slab_reclaimable 94912
[  226.729398][ T4917] slab_unreclaimable 1992
[  226.729398][ T4917] slab 96904
[  226.729398][ T4917] workingset_refault_anon 0
[  226.729398][ T4917] workingset_refault_file 0
[  226.729398][ T4917] workingset_activate_anon 0
[  226.729398][ T4917] workingset_activate_file 0
[  226.737603][ T4443] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[  226.837981][ T4324] Bluetooth: hci23: command 0x0419 tx timeout
[  226.861649][ T4461] Failed to create system directory btrfs
[  226.867656][ T4461] Could not create directory for event alloc_extent_state
[  226.894717][ T4461] Failed to create system directory btrfs
[  226.906229][ T4461] Could not create directory for event btrfs_setup_cluster
[  226.914084][   T13] Bluetooth: hci5: command 0x0406 tx timeout
[  226.920162][   T13] Bluetooth: hci6: command 0x0406 tx timeout
[  226.946589][ T4461] Failed to create system directory btrfs
[  226.952471][ T4461] Could not create directory for event btrfs_failed_cluster_setup
[  226.972573][ T4894] 8021q: adding VLAN 0 to HW filter on device team0
[  226.973294][ T4917] oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=test,mems_allowed=0-1,oom_memcg=/syz0/test,task_memcg=/syz0/test,task=syz.0.150,pid=4917,uid=0
[  227.008668][ T4461] Failed to create system directory btrfs
[  227.031266][ T4908] netdevsim netdevsim5 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  227.035114][ T4461] Could not create directory for event btrfs_find_cluster
[  227.052927][  T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
[  227.065293][  T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[  227.073750][ T4917] Memory cgroup out of memory: Killed process 4917 (syz.0.150) total-vm:44920kB, anon-rss:1324kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000
[  227.078993][  T144] bridge0: port 1(bridge_slave_0) entered blocking state
[  227.097520][  T144] bridge0: port 1(bridge_slave_0) entered forwarding state
[  227.129748][ T4461] Failed to create system directory btrfs
[  227.136324][  T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
[  227.143908][ T4461] Could not create directory for event btrfs_reserve_extent_cluster
[  227.176996][ T4461] Failed to create system directory btrfs
[  227.182796][ T4461] Could not create directory for event btrfs_reserve_extent
[  227.213482][ T4461] Failed to create system directory btrfs
[  227.219346][ T4461] Could not create directory for event find_free_extent
[  227.229705][ T4908] netdevsim netdevsim5 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  227.284355][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
[  227.293255][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[  227.312944][ T4409] bridge0: port 2(bridge_slave_1) entered blocking state
[  227.320093][ T4409] bridge0: port 2(bridge_slave_1) entered forwarding state
[  227.333691][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready
[  227.342794][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready
[  227.352633][ T4918] syz.0.151 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
[  227.362760][ T4461] Failed to create system directory btrfs
[  227.368666][ T4461] Could not create directory for event btrfs_reserved_extent_free
[  227.377797][ T4918] CPU: 1 PID: 4918 Comm: syz.0.151 Not tainted syzkaller #0
[  227.384882][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready
[  227.385129][ T4918] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  227.403150][ T4918] Call Trace:
[  227.406482][ T4918]  <TASK>
[  227.409450][ T4918]  dump_stack_lvl+0x188/0x250
[  227.414169][ T4918]  ? show_regs_print_info+0x20/0x20
[  227.419399][ T4918]  ? load_image+0x410/0x410
[  227.420817][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[  227.423952][ T4918]  ? local_lock_release+0x170/0x170
[  227.423978][ T4918]  ? __rwlock_init+0x140/0x140
[  227.441809][ T4918]  dump_header+0xd9/0x780
[  227.446176][ T4918]  oom_kill_process+0x20e/0x3d0
[  227.451062][ T4918]  out_of_memory+0xdb2/0x1190
[  227.455782][ T4918]  ? mem_cgroup_out_of_memory+0xbd/0x3b0
[  227.461662][ T4918]  ? mutex_lock_io_nested+0x60/0x60
[  227.466909][ T4918]  ? unregister_oom_notifier+0x20/0x20
[  227.472433][ T4918]  mem_cgroup_out_of_memory+0x2b9/0x3b0
[  227.478013][ T4918]  ? mem_cgroup_oom_trylock+0x210/0x210
[  227.483601][ T4918]  ? do_raw_spin_unlock+0x11d/0x230
[  227.488836][ T4918]  try_charge_memcg+0x1075/0x15b0
[  227.493919][ T4918]  ? get_mem_cgroup_from_objcg+0x120/0x120
[  227.499756][ T4918]  ? rcu_lock_acquire+0x30/0x30
[  227.504637][ T4918]  ? __lock_acquire+0x13dc/0x7b50
[  227.504955][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[  227.509737][ T4918]  obj_cgroup_charge_pages+0x87/0x190
[  227.522292][ T4918]  ? __memcg_kmem_charge_page+0x380/0x380
[  227.528052][ T4918]  ? rcu_lock_acquire+0x30/0x30
[  227.532939][ T4918]  obj_cgroup_charge+0x19f/0x320
[  227.537910][ T4918]  ? mod_objcg_mlstate+0x2e0/0x2e0
[  227.543066][ T4918]  slab_pre_alloc_hook+0x9d/0xc0
[  227.546615][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready
[  227.548031][ T4918]  ? __d_alloc+0x27/0x6d0
[  227.560269][ T4918]  kmem_cache_alloc+0x3d/0x280
[  227.565069][ T4918]  __d_alloc+0x27/0x6d0
[  227.569254][ T4918]  d_alloc+0x46/0x250
[  227.573263][ T4918]  lookup_one_qstr_excl+0xc6/0x240
[  227.577143][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[  227.578408][ T4918]  filename_create+0x242/0x450
[  227.590994][ T4918]  ? kern_path_create+0x190/0x190
[  227.596061][ T4918]  do_mkdirat+0xa5/0x5c0
[  227.596228][ T4223] Bluetooth: hci24: command 0x041b tx timeout
[  227.600332][ T4918]  ? vfs_mkdir+0x570/0x570
[  227.610841][ T4918]  __x64_sys_mkdirat+0x85/0x90
[  227.615652][ T4918]  do_syscall_64+0x4c/0xa0
[  227.620114][ T4918]  ? clear_bhb_loop+0x30/0x80
[  227.624822][ T4918]  ? clear_bhb_loop+0x30/0x80
[  227.629535][ T4918]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  227.635460][ T4918] RIP: 0033:0x7f7e0dfac159
[  227.639940][ T4918] 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 e8 ff ff ff f7 d8 64 89 01 48
[  227.651894][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready
[  227.659592][ T4918] RSP: 002b:00007ffe6ce73288 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[  227.659621][ T4918] RAX: ffffffffffffffda RBX: 00007f7e0e233fa0 RCX: 00007f7e0dfac159
[  227.659639][ T4918] RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
[  227.691952][ T4918] RBP: 00007f7e0e04306b R08: 0000000000000000 R09: 0000000000000000
[  227.696117][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[  227.699953][ T4918] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  227.715675][ T4918] R13: 00007f7e0e233fac R14: 00007f7e0e233fa0 R15: 00007f7e0e233fa0
[  227.723698][ T4918]  </TASK>
[  227.757383][ T4894] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network
[  227.773995][ T4461] Failed to create system directory btrfs
[  227.779783][ T4461] Could not create directory for event btrfs_reserved_extent_alloc
[  227.795308][ T4894] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[  227.815375][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready
[  227.826804][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[  227.836978][ T4461] Failed to create system directory btrfs
[  227.842753][ T4461] Could not create directory for event btrfs_flush_space
[  227.880190][ T4461] Failed to create system directory btrfs
[  227.886287][ T4461] Could not create directory for event btrfs_trigger_flush
[  227.913175][ T4461] Failed to create system directory btrfs
[  227.920181][ T4461] Could not create directory for event btrfs_space_reservation
[  227.944047][ T4908] netdevsim netdevsim5 netdevsim0: renamed from eth0
[  227.974986][ T4461] Failed to create system directory btrfs
[  227.980787][ T4461] Could not create directory for event btrfs_cow_block
[  227.989713][ T4908] netdevsim netdevsim5 netdevsim1: renamed from eth1
[  228.007126][ T4908] netdevsim netdevsim5 netdevsim2: renamed from eth2
[  228.032555][ T4908] netdevsim netdevsim5 netdevsim3: renamed from eth3
[  228.048076][ T4461] Failed to create system directory btrfs
[  228.059071][ T4461] Could not create directory for event btrfs_chunk_free
[  228.114687][ T4918] memory: usage 96kB, limit 96kB, failcnt 58048
[  228.120996][ T4918] memory+swap: usage 96kB, limit 9007199254740988kB, failcnt 0
[  228.133502][ T4461] Failed to create system directory btrfs
[  228.139678][ T4461] Could not create directory for event btrfs_chunk_alloc
[  228.184903][  T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[  228.192595][  T144] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[  228.200101][ T4918] kmem: usage 96kB, limit 9007199254740988kB, failcnt 0
[  228.200124][ T4918] Memory cgroup stats for /syz0/test:
[  228.200284][ T4918] anon 0
[  228.200284][ T4918] file 0
[  228.200284][ T4918] kernel_stack 0
[  228.200284][ T4918] pagetables 0
[  228.200284][ T4918] percpu 0
[  228.200284][ T4918] sock 0
[  228.200284][ T4918] shmem 0
[  228.200284][ T4918] file_mapped 0
[  228.200284][ T4918] file_dirty 0
[  228.200284][ T4918] file_writeback 0
[  228.200284][ T4918] swapcached 0
[  228.200284][ T4918] anon_thp 0
[  228.200284][ T4918] file_thp 0
[  228.200284][ T4918] shmem_thp 0
[  228.200284][ T4918] inactive_anon 0
[  228.200284][ T4918] active_anon 0
[  228.200284][ T4918] inactive_file 0
[  228.200284][ T4918] active_file 0
[  228.200284][ T4918] unevictable 0
[  228.200284][ T4918] slab_reclaimable 94912
[  228.200284][ T4918] slab_unreclaimable 1992
[  228.200284][ T4918] slab 96904
[  228.200284][ T4918] workingset_refault_anon 0
[  228.200284][ T4918] workingset_refault_file 0
[  228.200284][ T4918] workingset_activate_anon 0
[  228.200284][ T4918] workingset_activate_file 0
[  228.320045][ T4918] oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=test,mems_allowed=0-1,oom_memcg=/syz0/test,task_memcg=/syz0/test,task=syz.0.151,pid=4918,uid=0
[  228.342796][ T4918] Memory cgroup out of memory: Killed process 4918 (syz.0.151) total-vm:44920kB, anon-rss:1324kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000
[  228.347161][ T4894] 8021q: adding VLAN 0 to HW filter on device batadv0
2026/09/20 06:04:51 executed programs: 143
[  228.380755][ T4461] Failed to create system directory btrfs
[  228.396394][ T4461] Could not create directory for event run_delayed_ref_head
[  228.442073][ T4461] Failed to create system directory btrfs
[  228.448351][ T4461] Could not create directory for event add_delayed_ref_head
[  228.480455][ T4908] 8021q: adding VLAN 0 to HW filter on device bond0
[  228.518656][    T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready
[  228.527534][ T4461] Failed to create system directory btrfs
[  228.534914][    T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[  228.551311][ T4923] syz.0.152 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
[  228.573900][ T4461] Could not create directory for event run_delayed_data_ref
[  228.584428][    T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[  228.595056][    T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[  228.602634][ T4923] CPU: 1 PID: 4923 Comm: syz.0.152 Not tainted syzkaller #0
[  228.609960][ T4923] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  228.620041][ T4923] Call Trace:
[  228.623342][ T4923]  <TASK>
[  228.626303][ T4923]  dump_stack_lvl+0x188/0x250
[  228.631023][ T4923]  ? show_regs_print_info+0x20/0x20
[  228.636278][ T4923]  ? load_image+0x410/0x410
[  228.640818][ T4923]  ? local_lock_release+0x170/0x170
[  228.646055][ T4923]  ? __rwlock_init+0x140/0x140
[  228.650863][ T4923]  dump_header+0xd9/0x780
[  228.655234][ T4923]  oom_kill_process+0x20e/0x3d0
[  228.660127][ T4923]  out_of_memory+0xdb2/0x1190
[  228.664845][ T4923]  ? mem_cgroup_out_of_memory+0xbd/0x3b0
[  228.670516][ T4923]  ? mutex_lock_io_nested+0x60/0x60
[  228.675783][ T4923]  ? unregister_oom_notifier+0x20/0x20
[  228.681284][ T4923]  mem_cgroup_out_of_memory+0x2b9/0x3b0
[  228.686869][ T4923]  ? mem_cgroup_oom_trylock+0x210/0x210
[  228.692469][ T4923]  ? do_raw_spin_unlock+0x11d/0x230
[  228.697704][ T4923]  try_charge_memcg+0x1075/0x15b0
[  228.702783][ T4923]  ? get_mem_cgroup_from_objcg+0x120/0x120
[  228.708623][ T4923]  ? rcu_lock_acquire+0x30/0x30
[  228.713519][ T4923]  ? __lock_acquire+0x13dc/0x7b50
[  228.718600][ T4923]  obj_cgroup_charge_pages+0x87/0x190
[  228.724004][ T4923]  ? __memcg_kmem_charge_page+0x380/0x380
[  228.729764][ T4923]  ? rcu_lock_acquire+0x30/0x30
[  228.734650][ T4923]  obj_cgroup_charge+0x19f/0x320
[  228.739626][ T4923]  ? mod_objcg_mlstate+0x2e0/0x2e0
[  228.744810][ T4923]  slab_pre_alloc_hook+0x9d/0xc0
[  228.749790][ T4923]  ? __d_alloc+0x27/0x6d0
[  228.754169][ T4923]  kmem_cache_alloc+0x3d/0x280
[  228.759003][ T4923]  __d_alloc+0x27/0x6d0
[  228.759298][ T4908] 8021q: adding VLAN 0 to HW filter on device team0
[  228.763197][ T4923]  d_alloc+0x46/0x250
[  228.773781][ T4923]  lookup_one_qstr_excl+0xc6/0x240
[  228.778928][ T4923]  filename_create+0x242/0x450
[  228.783730][ T4923]  ? kern_path_create+0x190/0x190
[  228.788840][ T4923]  do_mkdirat+0xa5/0x5c0
[  228.793122][ T4923]  ? vfs_mkdir+0x570/0x570
[  228.797596][ T4923]  __x64_sys_mkdirat+0x85/0x90
[  228.802392][ T4923]  do_syscall_64+0x4c/0xa0
[  228.806842][ T4923]  ? clear_bhb_loop+0x30/0x80
[  228.811552][ T4923]  ? clear_bhb_loop+0x30/0x80
[  228.816262][ T4923]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  228.822197][ T4923] RIP: 0033:0x7f7e0dfac159
[  228.826641][ T4923] 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 e8 ff ff ff f7 d8 64 89 01 48
[  228.846282][ T4923] RSP: 002b:00007ffe6ce73288 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[  228.854749][ T4923] RAX: ffffffffffffffda RBX: 00007f7e0e233fa0 RCX: 00007f7e0dfac159
[  228.862758][ T4923] RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
[  228.870767][ T4923] RBP: 00007f7e0e04306b R08: 0000000000000000 R09: 0000000000000000
[  228.878768][ T4923] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  228.886773][ T4923] R13: 00007f7e0e233fac R14: 00007f7e0e233fa0 R15: 00007f7e0e233fa0
[  228.894807][ T4923]  </TASK>
[  228.899475][ T4461] Failed to create system directory btrfs
[  228.915813][ T4461] Could not create directory for event add_delayed_data_ref
[  228.934541][    T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
[  228.943384][    T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[  228.956775][ T4923] memory: usage 96kB, limit 96kB, failcnt 58246
[  228.963081][ T4923] memory+swap: usage 96kB, limit 9007199254740988kB, failcnt 0
[  228.984199][    T9] bridge0: port 1(bridge_slave_0) entered blocking state
[  228.988103][ T4923] kmem: usage 96kB, limit 9007199254740988kB, failcnt 0
[  228.991356][    T9] bridge0: port 1(bridge_slave_0) entered forwarding state
[  229.008242][ T4461] Failed to create system directory btrfs
[  229.017252][ T4461] Could not create directory for event run_delayed_tree_ref
[  229.024842][ T4923] Memory cgroup stats for /syz0/test:
[  229.024999][ T4923] anon 0
[  229.024999][ T4923] file 0
[  229.024999][ T4923] kernel_stack 0
[  229.024999][ T4923] pagetables 0
[  229.024999][ T4923] percpu 0
[  229.024999][ T4923] sock 0
[  229.024999][ T4923] shmem 0
[  229.024999][ T4923] file_mapped 0
[  229.024999][ T4923] file_dirty 0
[  229.024999][ T4923] file_writeback 0
[  229.024999][ T4923] swapcached 0
[  229.024999][ T4923] anon_thp 0
[  229.024999][ T4923] file_thp 0
[  229.024999][ T4923] shmem_thp 0
[  229.024999][ T4923] inactive_anon 0
[  229.024999][ T4923] active_anon 0
[  229.024999][ T4923] inactive_file 0
[  229.024999][ T4923] active_file 0
[  229.024999][ T4923] unevictable 0
[  229.024999][ T4923] slab_reclaimable 94912
[  229.024999][ T4923] slab_unreclaimable 1992
[  229.024999][ T4923] slab 96904
[  229.024999][ T4923] workingset_refault_anon 0
[  229.024999][ T4923] workingset_refault_file 0
[  229.024999][ T4923] workingset_activate_anon 0
[  229.024999][ T4923] workingset_activate_file 0
[  229.026813][    T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
[  229.030774][ T4923] oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=test,mems_allowed=0-1,oom_memcg=/syz0/test,task_memcg=/syz0/test,task=syz.0.152,pid=4923,uid=0
[  229.163001][ T4461] Failed to create system directory btrfs
[  229.169572][ T4461] Could not create directory for event add_delayed_tree_ref
[  229.197325][ T4461] Failed to create system directory btrfs
[  229.203220][ T4461] Could not create directory for event btrfs_add_block_group
[  229.212149][    T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[  229.224307][ T4923] Memory cgroup out of memory: Killed process 4923 (syz.0.152) total-vm:44920kB, anon-rss:1324kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000
[  229.226045][    T9] bridge0: port 2(bridge_slave_1) entered blocking state
[  229.248105][    T9] bridge0: port 2(bridge_slave_1) entered forwarding state
[  229.279887][ T4461] Failed to create system directory btrfs
[  229.286359][    T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready
[  229.294462][ T4461] Could not create directory for event btrfs_sync_fs
[  229.302774][    T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready
[  229.316382][    T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[  229.331532][    T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
[  229.344223][    T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[  229.360516][    T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[  229.373806][ T4461] Failed to create system directory btrfs
[  229.379586][ T4461] Could not create directory for event btrfs_sync_file
[  229.391487][ T4894] device veth0_vlan entered promiscuous mode
[  229.431982][ T4894] device veth1_vlan entered promiscuous mode
[  229.449108][ T4461] Failed to create system directory btrfs
[  229.455946][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready
[  229.489513][ T4924] syz.0.153 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
[  229.503938][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready
[  229.512139][ T4461] Could not create directory for event btrfs_writepage_end_io_hook
[  229.523529][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[  229.533219][ T4924] CPU: 1 PID: 4924 Comm: syz.0.153 Not tainted syzkaller #0
[  229.540582][ T4924] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  229.550665][ T4924] Call Trace:
[  229.553972][ T4924]  <TASK>
[  229.556930][ T4924]  dump_stack_lvl+0x188/0x250
[  229.561645][ T4924]  ? show_regs_print_info+0x20/0x20
[  229.566883][ T4924]  ? load_image+0x410/0x410
[  229.571456][ T4924]  ? local_lock_release+0x170/0x170
[  229.576774][ T4924]  ? __rwlock_init+0x140/0x140
[  229.581595][ T4924]  dump_header+0xd9/0x780
[  229.585964][ T4924]  oom_kill_process+0x20e/0x3d0
[  229.590852][ T4924]  out_of_memory+0xdb2/0x1190
[  229.595561][ T4924]  ? mem_cgroup_out_of_memory+0xbd/0x3b0
[  229.601265][ T4924]  ? mutex_lock_io_nested+0x60/0x60
[  229.606500][ T4924]  ? unregister_oom_notifier+0x20/0x20
[  229.612010][ T4924]  mem_cgroup_out_of_memory+0x2b9/0x3b0
[  229.617586][ T4924]  ? mem_cgroup_oom_trylock+0x210/0x210
[  229.623173][ T4924]  ? do_raw_spin_unlock+0x11d/0x230
[  229.628404][ T4924]  try_charge_memcg+0x1075/0x15b0
[  229.633494][ T4924]  ? get_mem_cgroup_from_objcg+0x120/0x120
[  229.639338][ T4924]  ? rcu_lock_acquire+0x30/0x30
[  229.644229][ T4924]  ? __lock_acquire+0x13dc/0x7b50
[  229.649314][ T4924]  obj_cgroup_charge_pages+0x87/0x190
[  229.654721][ T4924]  ? __memcg_kmem_charge_page+0x380/0x380
[  229.660472][ T4924]  ? rcu_lock_acquire+0x30/0x30
[  229.665355][ T4924]  obj_cgroup_charge+0x19f/0x320
[  229.670325][ T4924]  ? mod_objcg_mlstate+0x2e0/0x2e0
[  229.675509][ T4924]  slab_pre_alloc_hook+0x9d/0xc0
[  229.680480][ T4924]  ? __d_alloc+0x27/0x6d0
[  229.684843][ T4924]  kmem_cache_alloc+0x3d/0x280
[  229.689650][ T4924]  __d_alloc+0x27/0x6d0
[  229.693839][ T4924]  d_alloc+0x46/0x250
[  229.697857][ T4924]  lookup_one_qstr_excl+0xc6/0x240
[  229.703007][ T4924]  filename_create+0x242/0x450
[  229.707808][ T4924]  ? kern_path_create+0x190/0x190
[  229.712918][ T4924]  do_mkdirat+0xa5/0x5c0
[  229.717198][ T4924]  ? vfs_mkdir+0x570/0x570
[  229.721665][ T4924]  __x64_sys_mkdirat+0x85/0x90
[  229.726460][ T4924]  do_syscall_64+0x4c/0xa0
[  229.730908][ T4924]  ? clear_bhb_loop+0x30/0x80
[  229.735619][ T4924]  ? clear_bhb_loop+0x30/0x80
[  229.736425][   T13] Bluetooth: hci24: command 0x040f tx timeout
[  229.740325][ T4924]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  229.752296][ T4924] RIP: 0033:0x7f7e0dfac159
[  229.756738][ T4924] 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 e8 ff ff ff f7 d8 64 89 01 48
[  229.776374][ T4924] RSP: 002b:00007ffe6ce73288 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[  229.784834][ T4924] RAX: ffffffffffffffda RBX: 00007f7e0e233fa0 RCX: 00007f7e0dfac159
[  229.792839][ T4924] RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
[  229.800842][ T4924] RBP: 00007f7e0e04306b R08: 0000000000000000 R09: 0000000000000000
[  229.808846][ T4924] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  229.816873][ T4924] R13: 00007f7e0e233fac R14: 00007f7e0e233fa0 R15: 00007f7e0e233fa0
[  229.824895][ T4924]  </TASK>
[  229.843729][ T4924] memory: usage 96kB, limit 96kB, failcnt 58498
[  229.860799][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[  229.863843][ T4924] memory+swap: usage 96kB, limit 9007199254740988kB, failcnt 0
[  229.896617][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready
[  229.910090][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[  229.923138][ T4461] Failed to create system directory btrfs
[  229.929128][ T4924] kmem: usage 96kB, limit 9007199254740988kB, failcnt 0
[  229.932138][ T4461] Could not create directory for event __extent_writepage
[  229.965514][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready
[  229.980070][ T4924] Memory cgroup stats for /syz0/test:
[  229.980242][ T4924] anon 0
[  229.980242][ T4924] file 0
[  229.980242][ T4924] kernel_stack 0
[  229.980242][ T4924] pagetables 0
[  229.980242][ T4924] percpu 0
[  229.980242][ T4924] sock 0
[  229.980242][ T4924] shmem 0
[  229.980242][ T4924] file_mapped 0
[  229.980242][ T4924] file_dirty 0
[  229.980242][ T4924] file_writeback 0
[  229.980242][ T4924] swapcached 0
[  229.980242][ T4924] anon_thp 0
[  229.980242][ T4924] file_thp 0
[  229.980242][ T4924] shmem_thp 0
[  229.980242][ T4924] inactive_anon 0
[  229.980242][ T4924] active_anon 0
[  229.980242][ T4924] inactive_file 0
[  229.980242][ T4924] active_file 0
[  229.980242][ T4924] unevictable 0
[  229.980242][ T4924] slab_reclaimable 94912
[  229.980242][ T4924] slab_unreclaimable 1992
[  229.980242][ T4924] slab 96904
[  229.980242][ T4924] workingset_refault_anon 0
[  229.980242][ T4924] workingset_refault_file 0
[  229.980242][ T4924] workingset_activate_anon 0
[  229.980242][ T4924] workingset_activate_file 0
[  229.995450][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[  230.092067][ T4924] oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=test,mems_allowed=0-1,oom_memcg=/syz0/test,task_memcg=/syz0/test,task=syz.0.153,pid=4924,uid=0
[  230.108755][ T4924] Memory cgroup out of memory: Killed process 4924 (syz.0.153) total-vm:44920kB, anon-rss:1324kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000
[  230.150602][ T4461] Failed to create system directory btrfs
[  230.156831][ T4461] Could not create directory for event btrfs_ordered_extent_put
[  230.193237][ T4908] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network
[  230.209092][ T4908] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[  230.226563][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready
[  230.235851][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[  230.259145][ T4894] device veth0_macvtap entered promiscuous mode
[  230.281383][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready
[  230.294594][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[  230.300060][ T4925] syz.0.154 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
[  230.329256][ T4894] device veth1_macvtap entered promiscuous mode
[  230.337274][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[  230.338605][ T4461] Failed to create system directory btrfs
[  230.353233][  T154] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready
[  230.360981][ T4925] CPU: 0 PID: 4925 Comm: syz.0.154 Not tainted syzkaller #0
[  230.361007][ T4925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  230.361021][ T4925] Call Trace:
[  230.361029][ T4925]  <TASK>
[  230.361037][ T4925]  dump_stack_lvl+0x188/0x250
[  230.361067][ T4925]  ? show_regs_print_info+0x20/0x20
[  230.361090][ T4925]  ? load_image+0x410/0x410
[  230.399228][ T4925]  ? local_lock_release+0x170/0x170
[  230.404464][ T4925]  ? __rwlock_init+0x140/0x140
[  230.409267][ T4925]  dump_header+0xd9/0x780
[  230.413634][ T4925]  oom_kill_process+0x20e/0x3d0
[  230.418529][ T4925]  out_of_memory+0xdb2/0x1190
[  230.423243][ T4925]  ? mem_cgroup_out_of_memory+0xbd/0x3b0
[  230.428908][ T4925]  ? mutex_lock_io_nested+0x60/0x60
[  230.434144][ T4925]  ? unregister_oom_notifier+0x20/0x20
[  230.439654][ T4925]  mem_cgroup_out_of_memory+0x2b9/0x3b0
[  230.445237][ T4925]  ? mem_cgroup_oom_trylock+0x210/0x210
[  230.450827][ T4925]  ? do_raw_spin_unlock+0x11d/0x230
[  230.453035][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  230.456061][ T4925]  try_charge_memcg+0x1075/0x15b0
[  230.456104][ T4925]  ? get_mem_cgroup_from_objcg+0x120/0x120
[  230.456128][ T4925]  ? rcu_lock_acquire+0x30/0x30
[  230.456155][ T4925]  ? __lock_acquire+0x13dc/0x7b50
[  230.456200][ T4925]  obj_cgroup_charge_pages+0x87/0x190
[  230.469628][ T4461] Could not create directory for event btrfs_ordered_extent_start
[  230.471672][ T4925]  ? __memcg_kmem_charge_page+0x380/0x380
[  230.500341][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  230.500579][ T4925]  ? rcu_lock_acquire+0x30/0x30
[  230.510795][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  230.516196][ T4925]  obj_cgroup_charge+0x19f/0x320
[  230.516229][ T4925]  ? mod_objcg_mlstate+0x2e0/0x2e0
[  230.516266][ T4925]  slab_pre_alloc_hook+0x9d/0xc0
[  230.516289][ T4925]  ? __d_alloc+0x27/0x6d0
[  230.516312][ T4925]  kmem_cache_alloc+0x3d/0x280
[  230.516339][ T4925]  __d_alloc+0x27/0x6d0
[  230.516365][ T4925]  d_alloc+0x46/0x250
[  230.516389][ T4925]  lookup_one_qstr_excl+0xc6/0x240
[  230.516417][ T4925]  filename_create+0x242/0x450
[  230.516448][ T4925]  ? kern_path_create+0x190/0x190
[  230.516483][ T4925]  do_mkdirat+0xa5/0x5c0
[  230.516509][ T4925]  ? vfs_mkdir+0x570/0x570
[  230.516543][ T4925]  __x64_sys_mkdirat+0x85/0x90
[  230.516568][ T4925]  do_syscall_64+0x4c/0xa0
[  230.516596][ T4925]  ? clear_bhb_loop+0x30/0x80
[  230.516619][ T4925]  ? clear_bhb_loop+0x30/0x80
[  230.530884][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  230.531908][ T4925]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  230.555127][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  230.556051][ T4925] RIP: 0033:0x7f7e0dfac159
[  230.560221][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  230.564212][ T4925] 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 e8 ff ff ff f7 d8 64 89 01 48
[  230.564238][ T4925] RSP: 002b:00007ffe6ce73288 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[  230.564262][ T4925] RAX: ffffffffffffffda RBX: 00007f7e0e233fa0 RCX: 00007f7e0dfac159
[  230.564278][ T4925] RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
[  230.564294][ T4925] RBP: 00007f7e0e04306b R08: 0000000000000000 R09: 0000000000000000
[  230.564308][ T4925] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  230.564322][ T4925] R13: 00007f7e0e233fac R14: 00007f7e0e233fa0 R15: 00007f7e0e233fa0
[  230.564354][ T4925]  </TASK>
[  230.732392][ T4925] memory: usage 96kB, limit 96kB, failcnt 58646
[  230.743381][ T4925] memory+swap: usage 96kB, limit 9007199254740988kB, failcnt 0
[  230.752068][ T4925] kmem: usage 96kB, limit 9007199254740988kB, failcnt 0
[  230.759721][ T4925] Memory cgroup stats for /syz0/test:
[  230.759885][ T4925] anon 0
[  230.759885][ T4925] file 0
[  230.759885][ T4925] kernel_stack 0
[  230.759885][ T4925] pagetables 0
[  230.759885][ T4925] percpu 0
[  230.759885][ T4925] sock 0
[  230.759885][ T4925] shmem 0
[  230.759885][ T4925] file_mapped 0
[  230.759885][ T4925] file_dirty 0
[  230.759885][ T4925] file_writeback 0
[  230.759885][ T4925] swapcached 0
[  230.759885][ T4925] anon_thp 0
[  230.759885][ T4925] file_thp 0
[  230.759885][ T4925] shmem_thp 0
[  230.759885][ T4925] inactive_anon 0
[  230.759885][ T4925] active_anon 0
[  230.759885][ T4925] inactive_file 0
[  230.759885][ T4925] active_file 0
[  230.759885][ T4925] unevictable 0
[  230.759885][ T4925] slab_reclaimable 94912
[  230.759885][ T4925] slab_unreclaimable 1992
[  230.759885][ T4925] slab 96904
[  230.759885][ T4925] workingset_refault_anon 0
[  230.759885][ T4925] workingset_refault_file 0
[  230.759885][ T4925] workingset_activate_anon 0
[  230.759885][ T4925] workingset_activate_file 0
[  230.863360][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  230.874163][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  230.884540][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  230.898526][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  230.908700][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  230.920328][ T4925] oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=test,mems_allowed=0-1,oom_memcg=/syz0/test,task_memcg=/syz0/test,task=syz.0.154,pid=4925,uid=0
[  230.936647][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  230.946860][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  230.957726][ T4925] Memory cgroup out of memory: Killed process 4925 (syz.0.154) total-vm:44920kB, anon-rss:1324kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000
[  230.977925][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  230.988698][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  231.006401][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  231.028170][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  231.042893][ T4461] Failed to create system directory btrfs
[  231.048751][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  231.059036][ T4461] Could not create directory for event btrfs_ordered_extent_remove
[  231.067322][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  231.082200][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  231.103605][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  231.123784][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  231.151065][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  231.179056][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  231.191944][ T4461] Failed to create system directory btrfs
[  231.201462][ T4929] syz.0.155 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
[  231.213238][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  231.224353][ T4461] Could not create directory for event btrfs_ordered_extent_add
[  231.238416][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  231.250733][ T4929] CPU: 1 PID: 4929 Comm: syz.0.155 Not tainted syzkaller #0
[  231.258063][ T4929] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  231.268174][ T4929] Call Trace:
[  231.271482][ T4929]  <TASK>
[  231.274435][ T4929]  dump_stack_lvl+0x188/0x250
[  231.279147][ T4929]  ? show_regs_print_info+0x20/0x20
[  231.284397][ T4929]  ? load_image+0x410/0x410
[  231.288937][ T4929]  ? local_lock_release+0x170/0x170
[  231.294170][ T4929]  ? __rwlock_init+0x140/0x140
[  231.298972][ T4929]  dump_header+0xd9/0x780
[  231.303355][ T4929]  oom_kill_process+0x20e/0x3d0
[  231.308247][ T4929]  out_of_memory+0xdb2/0x1190
[  231.312950][ T4929]  ? mem_cgroup_out_of_memory+0xbd/0x3b0
[  231.318625][ T4929]  ? mutex_lock_io_nested+0x60/0x60
[  231.323878][ T4929]  ? unregister_oom_notifier+0x20/0x20
[  231.329383][ T4929]  mem_cgroup_out_of_memory+0x2b9/0x3b0
[  231.334972][ T4929]  ? mem_cgroup_oom_trylock+0x210/0x210
[  231.340562][ T4929]  ? do_raw_spin_unlock+0x11d/0x230
[  231.345791][ T4929]  try_charge_memcg+0x1075/0x15b0
[  231.350866][ T4929]  ? get_mem_cgroup_from_objcg+0x120/0x120
[  231.356711][ T4929]  ? rcu_lock_acquire+0x30/0x30
[  231.361603][ T4929]  ? __lock_acquire+0x13dc/0x7b50
[  231.366680][ T4929]  obj_cgroup_charge_pages+0x87/0x190
[  231.372085][ T4929]  ? __memcg_kmem_charge_page+0x380/0x380
[  231.377852][ T4929]  ? rcu_lock_acquire+0x30/0x30
[  231.382738][ T4929]  obj_cgroup_charge+0x19f/0x320
[  231.387705][ T4929]  ? mod_objcg_mlstate+0x2e0/0x2e0
[  231.392916][ T4929]  slab_pre_alloc_hook+0x9d/0xc0
[  231.397884][ T4929]  ? __d_alloc+0x27/0x6d0
[  231.402245][ T4929]  kmem_cache_alloc+0x3d/0x280
[  231.407054][ T4929]  __d_alloc+0x27/0x6d0
[  231.411250][ T4929]  d_alloc+0x46/0x250
[  231.415264][ T4929]  lookup_one_qstr_excl+0xc6/0x240
[  231.420412][ T4929]  filename_create+0x242/0x450
[  231.425347][ T4929]  ? kern_path_create+0x190/0x190
[  231.430442][ T4929]  do_mkdirat+0xa5/0x5c0
[  231.434740][ T4929]  ? vfs_mkdir+0x570/0x570
[  231.439206][ T4929]  __x64_sys_mkdirat+0x85/0x90
[  231.444004][ T4929]  do_syscall_64+0x4c/0xa0
[  231.448448][ T4929]  ? clear_bhb_loop+0x30/0x80
[  231.453158][ T4929]  ? clear_bhb_loop+0x30/0x80
[  231.457868][ T4929]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  231.463794][ T4929] RIP: 0033:0x7f7e0dfac159
[  231.468278][ T4929] 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 e8 ff ff ff f7 d8 64 89 01 48
[  231.487915][ T4929] RSP: 002b:00007ffe6ce73288 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[  231.496367][ T4929] RAX: ffffffffffffffda RBX: 00007f7e0e233fa0 RCX: 00007f7e0dfac159
[  231.504374][ T4929] RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
[  231.512377][ T4929] RBP: 00007f7e0e04306b R08: 0000000000000000 R09: 0000000000000000
[  231.520377][ T4929] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  231.528378][ T4929] R13: 00007f7e0e233fac R14: 00007f7e0e233fa0 R15: 00007f7e0e233fa0
[  231.536408][ T4929]  </TASK>
[  231.548837][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  231.560501][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  231.570567][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  231.582220][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  231.593750][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  231.604769][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  231.617826][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  231.628389][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  231.639164][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  231.649725][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  231.662222][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  231.681449][ T4929] memory: usage 96kB, limit 96kB, failcnt 58761
[  231.683906][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  231.688181][ T4929] memory+swap: usage 96kB, limit 9007199254740988kB, failcnt 0
[  231.705819][ T4929] kmem: usage 96kB, limit 9007199254740988kB, failcnt 0
[  231.715664][ T4929] Memory cgroup stats for /syz0/test:
[  231.715850][ T4929] anon 0
[  231.715850][ T4929] file 0
[  231.715850][ T4929] kernel_stack 0
[  231.715850][ T4929] pagetables 0
[  231.715850][ T4929] percpu 0
[  231.715850][ T4929] sock 0
[  231.715850][ T4929] shmem 0
[  231.715850][ T4929] file_mapped 0
[  231.715850][ T4929] file_dirty 0
[  231.715850][ T4929] file_writeback 0
[  231.715850][ T4929] swapcached 0
[  231.715850][ T4929] anon_thp 0
[  231.715850][ T4929] file_thp 0
[  231.715850][ T4929] shmem_thp 0
[  231.715850][ T4929] inactive_anon 0
[  231.715850][ T4929] active_anon 0
[  231.715850][ T4929] inactive_file 0
[  231.715850][ T4929] active_file 0
[  231.715850][ T4929] unevictable 0
[  231.715850][ T4929] slab_reclaimable 94912
[  231.715850][ T4929] slab_unreclaimable 1992
[  231.715850][ T4929] slab 96904
[  231.715850][ T4929] workingset_refault_anon 0
[  231.715850][ T4929] workingset_refault_file 0
[  231.715850][ T4929] workingset_activate_anon 0
[  231.715850][ T4929] workingset_activate_file 0
[  231.727052][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  231.823466][ T4385] Bluetooth: hci24: command 0x0419 tx timeout
[  231.833735][ T4929] oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=test,mems_allowed=0-1,oom_memcg=/syz0/test,task_memcg=/syz0/test,task=syz.0.155,pid=4929,uid=0
[  231.849731][ T4929] Memory cgroup out of memory: Killed process 4929 (syz.0.155) total-vm:44920kB, anon-rss:1324kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000
[  231.877533][   T27] INFO: task syz.4.21:4466 blocked for more than 143 seconds.
[  231.886331][   T27]       Not tainted syzkaller #0
[  231.891306][   T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  231.903643][   T27] task:syz.4.21        state:D stack:27504 pid: 4466 ppid:  4302 flags:0x00004004
[  231.912899][   T27] Call Trace:
[  231.933011][   T27]  <TASK>
[  231.940165][   T27]  __schedule+0x11c3/0x4350
[  231.948926][   T27]  ? rcu_lock_acquire+0x30/0x30
[  231.957756][   T27]  ? __mutex_lock_common+0xdf0/0x2400
[  231.963183][   T27]  ? release_firmware_map_entry+0x190/0x190
[  231.970331][ T4934] syz.0.157 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
[  231.981957][   T27]  ? __lock_acquire+0x7b50/0x7b50
[  231.993760][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  231.994679][   T27]  ? __mutex_trylock_common+0x86/0x260
[  232.010442][ T4461] Failed to create system directory btrfs
[  232.013905][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  232.016661][ T4934] CPU: 1 PID: 4934 Comm: syz.0.157 Not tainted syzkaller #0
[  232.033902][ T4934] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  232.043988][ T4934] Call Trace:
[  232.047293][ T4934]  <TASK>
[  232.050246][ T4934]  dump_stack_lvl+0x188/0x250
[  232.054952][ T4934]  ? show_regs_print_info+0x20/0x20
[  232.060173][ T4934]  ? load_image+0x410/0x410
[  232.063673][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  232.064700][ T4934]  ? local_lock_release+0x170/0x170
[  232.079108][ T4385] Bluetooth: hci7: command 0x0406 tx timeout
[  232.079710][ T4934]  ? __rwlock_init+0x140/0x140
[  232.086351][ T4385] Bluetooth: hci8: command 0x0406 tx timeout
[  232.090484][ T4934]  dump_header+0xd9/0x780
[  232.100817][ T4934]  oom_kill_process+0x20e/0x3d0
[  232.103668][ T4385] Bluetooth: hci9: command 0x0406 tx timeout
[  232.105708][ T4934]  out_of_memory+0xdb2/0x1190
[  232.116384][ T4934]  ? mem_cgroup_out_of_memory+0xbd/0x3b0
[  232.122057][ T4934]  ? mutex_lock_io_nested+0x60/0x60
[  232.127297][ T4934]  ? unregister_oom_notifier+0x20/0x20
[  232.132799][ T4934]  mem_cgroup_out_of_memory+0x2b9/0x3b0
[  232.134508][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  232.138377][ T4934]  ? mem_cgroup_oom_trylock+0x210/0x210
[  232.154371][ T4934]  ? do_raw_spin_unlock+0x11d/0x230
[  232.159627][ T4934]  try_charge_memcg+0x1075/0x15b0
[  232.164696][ T4934]  ? get_mem_cgroup_from_objcg+0x120/0x120
[  232.170549][ T4934]  ? rcu_lock_acquire+0x30/0x30
[  232.171909][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  232.175453][ T4934]  ? __lock_acquire+0x13dc/0x7b50
[  232.175502][ T4934]  obj_cgroup_charge_pages+0x87/0x190
[  232.175524][ T4934]  ? __memcg_kmem_charge_page+0x380/0x380
[  232.175548][ T4934]  ? rcu_lock_acquire+0x30/0x30
[  232.175574][ T4934]  obj_cgroup_charge+0x19f/0x320
[  232.175600][ T4934]  ? mod_objcg_mlstate+0x2e0/0x2e0
[  232.175637][ T4934]  slab_pre_alloc_hook+0x9d/0xc0
[  232.175660][ T4934]  ? __d_alloc+0x27/0x6d0
[  232.175688][ T4934]  kmem_cache_alloc+0x3d/0x280
[  232.175714][ T4934]  __d_alloc+0x27/0x6d0
[  232.203675][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[  232.206533][ T4934]  d_alloc+0x46/0x250
[  232.211475][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  232.216590][ T4934]  lookup_one_qstr_excl+0xc6/0x240
[  232.216619][ T4934]  filename_create+0x242/0x450
[  232.259821][ T4894] batman_adv: batadv0: Interface activated: batadv_slave_0
[  232.264164][ T4934]  ? kern_path_create+0x190/0x190
[  232.264230][ T4934]  do_mkdirat+0xa5/0x5c0
[  232.285456][ T4934]  ? vfs_mkdir+0x570/0x570
[  232.286447][ T4461] Could not create directory for event btrfs_truncate_show_fi_inline
[  232.289915][ T4934]  __x64_sys_mkdirat+0x85/0x90
[  232.298178][   T27]  ? rcu_lock_release+0x20/0x20
[  232.302749][ T4934]  do_syscall_64+0x4c/0xa0
[  232.312009][ T4934]  ? clear_bhb_loop+0x30/0x80
[  232.316714][ T4934]  ? clear_bhb_loop+0x30/0x80
[  232.321424][ T4934]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  232.327345][ T4934] RIP: 0033:0x7f7e0dfac159
[  232.331800][ T4934] 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 e8 ff ff ff f7 d8 64 89 01 48
[  232.338813][   T27]  schedule+0x11b/0x1e0
[  232.351434][ T4934] RSP: 002b:00007ffe6ce73288 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[  232.351462][ T4934] RAX: ffffffffffffffda RBX: 00007f7e0e233fa0 RCX: 00007f7e0dfac159
[  232.372032][ T4934] RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
[  232.378469][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  232.380034][ T4934] RBP: 00007f7e0e04306b R08: 0000000000000000 R09: 0000000000000000
[  232.398432][ T4934] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  232.405258][   T27]  schedule_preempt_disabled+0xf/0x20
[  232.406427][ T4934] R13: 00007f7e0e233fac R14: 00007f7e0e233fa0 R15: 00007f7e0e233fa0
[  232.411808][   T27]  __mutex_lock_common+0xdf5/0x2400
[  232.419803][ T4934]  </TASK>
[  232.440745][   T27]  ? tracing_buffers_open+0x7f/0x4b0
[  232.445492][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  232.447295][   T27]  ? mutex_lock_io_nested+0x60/0x60
[  232.461150][   T27]  ? apparmor_file_open+0x3c7/0x790
[  232.466579][   T27]  ? apparmor_inode_getattr+0x20/0x20
[  232.466609][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  232.471987][   T27]  ? __rwlock_init+0x140/0x140
[  232.488112][ T4934] memory: usage 96kB, limit 96kB, failcnt 58816
[  232.494539][   T27]  ? do_raw_spin_lock+0x128/0x2f0
[  232.499650][   T27]  mutex_lock_nested+0x17/0x20
[  232.503750][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  232.504840][ T4934] memory+swap: usage 96kB, limit 9007199254740988kB, failcnt 0
[  232.522246][   T27]  tracing_buffers_open+0x7f/0x4b0
[  232.535086][   T27]  ? do_dentry_open+0x7ec/0xf90
[  232.539994][   T27]  ? tracing_buffers_ioctl+0x120/0x120
[  232.545550][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  232.545571][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  232.545584][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  232.545600][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  232.545613][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  232.545628][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  232.545654][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  232.545669][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  232.545691][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  232.570962][ T4934] kmem: usage 96kB, limit 9007199254740988kB, failcnt 0
[  232.613779][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  232.624338][   T27]  do_dentry_open+0x7f7/0xf90
[  232.663332][   T27]  ? vfs_open+0x2b/0x80
[  232.664017][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  232.672072][   T27]  path_openat+0x2718/0x2fb0
[  232.682857][   T27]  ? __kasan_slab_alloc+0xa9/0xc0
[  232.690518][   T27]  ? do_filp_open+0x400/0x400
[  232.694076][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  232.696282][   T27]  do_filp_open+0x1df/0x400
[  232.709841][   T27]  ? vfs_tmpfile+0x300/0x300
[  232.714895][   T27]  ? _raw_spin_unlock+0x24/0x40
[  232.719785][   T27]  ? alloc_fd+0x59e/0x650
[  232.724061][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  232.727235][ T4934] Memory cgroup stats for 
[  232.737474][   T27]  do_sys_openat2+0x14b/0x500
[  232.747828][   T27]  ? __lock_acquire+0x7b50/0x7b50
[  232.752915][   T27]  ? do_sys_open+0xe0/0xe0
[  232.757549][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  232.757569][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  232.757587][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  232.757605][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  232.757621][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  232.757638][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  232.757653][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  232.757671][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  232.757686][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  232.757704][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  232.757718][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  232.757756][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  232.757788][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  232.757808][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  232.757821][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  232.757836][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  232.757850][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  232.757867][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  232.772731][ T4934] /syz0/test
[  232.803950][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  232.819048][   T27]  ? lockdep_hardirqs_on_prepare+0x448/0x7c0
[  232.873866][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  232.907516][   T27]  ? lock_chain_count+0x20/0x20
[  232.977487][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  233.002246][ T4461] Failed to create system directory btrfs
[  233.003989][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  233.022683][ T4461] Could not create directory for event btrfs_get_extent_show_fi_inline
[  233.048177][   T27]  __x64_sys_openat+0x135/0x160
[  233.051382][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  233.053096][   T27]  do_syscall_64+0x4c/0xa0
[  233.073653][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  233.077185][ T4461] Failed to create system directory btrfs
[  233.090743][   T27]  ? clear_bhb_loop+0x30/0x80
[  233.098355][   T27]  ? clear_bhb_loop+0x30/0x80
[  233.103072][   T27]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  233.103935][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  233.110191][   T27] RIP: 0033:0x7f3174cbe159
[  233.125700][ T4461] Could not create directory for event btrfs_truncate_show_fi_regular
[  233.134169][   T27] RSP: 002b:00007ffcb5e6c0b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[  233.139994][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  233.142620][   T27] RAX: ffffffffffffffda RBX: 00007f3174f45fa0 RCX: 00007f3174cbe159
[  233.173636][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  233.182812][   T27] RDX: 0000000000000000 RSI: 0000200000000140 RDI: ffffffffffffff9c
[  233.183478][ T4894] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[  233.200068][   T27] RBP: 00007f3174d5506b R08: 0000000000000000 R09: 0000000000000000
[  233.219567][   T27] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  233.230769][ T4461] Failed to create system directory btrfs
[  233.239641][   T27] R13: 00007f3174f45fac R14: 00007f3174f45fa0 R15: 00007f3174f45fa0
[  233.250405][ T4894] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[  233.261908][ T4461] Could not create directory for event btrfs_get_extent_show_fi_regular
[  233.270581][   T27]  </TASK>
[  233.274198][   T27] 
[  233.274198][   T27] Showing all locks held in the system:
[  233.281940][   T27] 3 locks held by kworker/u4:0/9:
[  233.288894][ T4894] batman_adv: batadv0: Interface activated: batadv_slave_1
[  233.291916][ T4934] :
[  233.296322][ T4934] anon 0
[  233.296322][ T4934] file 0
[  233.296322][ T4934] kernel_stack 0
[  233.296322][ T4934] pagetables 0
[  233.296322][ T4934] percpu 0
[  233.296322][ T4934] sock 0
[  233.296322][ T4934] shmem 0
[  233.296322][ T4934] file_mapped 0
[  233.296322][ T4934] file_dirty 0
[  233.296322][ T4934] file_writeback 0
[  233.296322][ T4934] swapcached 0
[  233.296322][ T4934] anon_thp 0
[  233.296322][ T4934] file_thp 0
[  233.296322][ T4934] shmem_thp 0
[  233.296322][ T4934] inactive_anon 0
[  233.296322][ T4934] active_anon 0
[  233.296322][ T4934] inactive_file 0
[  233.296322][ T4934] active_file 0
[  233.296322][ T4934] unevictable 0
[  233.296322][ T4934] slab_reclaimable 94912
[  233.296322][ T4934] slab_unreclaimable 1992
[  233.296322][ T4934] slab 96904
[  233.296322][ T4934] workingset_refault_anon 0
[  233.296322][ T4934] workingset_refault_file 0
[  233.296322][ T4934] workingset_activate_anon 0
[  233.296322][ T4934] workingset_activate_file 0
[  233.393355][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
[  233.405629][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[  233.414121][   T27]  #0: ffff888016c79138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x75c/0xff0
[  233.443706][   T27]  #1: ffffc90000ce7d00 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x79e/0xff0
[  233.457120][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
[  233.459447][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[  233.498352][ T4894] netdevsim netdevsim3 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[  233.507217][   T27]  #2: ffff8880b913a358 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x25/0x130
[  233.525910][ T4894] netdevsim netdevsim3 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[  233.543016][ T4894] netdevsim netdevsim3 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[  233.543802][   T27] 3 locks held by kworker/0:1/13:
[  233.569060][ T4894] netdevsim netdevsim3 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[  233.580077][ T4461] Failed to create system directory btrfs
[  233.583521][   T27]  #0: ffff88802b8a9538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x75c/0xff0
[  233.596955][ T4461] Could not create directory for event btrfs_handle_em_exist
[  233.633596][   T27]  #1: ffffc90000d27d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x79e/0xff0
[  233.646618][ T4223] Bluetooth: hci25: command 0x0409 tx timeout
[  233.662788][ T4934] oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=test,mems_allowed=0-1,oom_memcg=/syz0/test,task_memcg=/syz0/test,task=syz.0.157,pid=4934,uid=0
[  233.678954][   T27]  #2: ffffffff8d44d548 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xc4/0x1530
[  233.688464][   T27] 1 lock held by khungtaskd/27:
[  233.693339][   T27]  #0: ffffffff8c31ef60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
[  233.702865][   T27] 2 locks held by kworker/1:2/2855:
[  233.708233][ T4934] Memory cgroup out of memory: Killed process 4934 (syz.0.157) total-vm:44920kB, anon-rss:1324kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000
[  233.728618][ T4461] Failed to create system directory btrfs
[  233.731723][   T27]  #0: ffff888016c72138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x75c/0xff0
[  233.744886][   T27]  #1: ffffc9000cb67d00 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x79e/0xff0
[  233.754926][ T4461] Could not create directory for event btrfs_get_extent
[  233.757282][   T27] 2 locks held by getty/3943:
[  233.772361][   T27]  #0: ffff88814cba7098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[  233.786732][   T27]  #1: ffffc90002cf62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x594/0x1a50
[  233.808370][   T27] 3 locks held by kworker/1:26/4361:
[  233.814040][   T27]  #0: ffff88802b8a9538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x75c/0xff0
[  233.845837][   T27]  #1: ffffc900035bfd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x79e/0xff0
2026/09/20 06:04:57 executed programs: 148
[  233.858423][   T27]  #2: ffffffff8d44d548 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xc4/0x1530
[  233.871948][   T27] 3 locks held by kworker/u4:6/4409:
[  233.878955][   T27]  #0: ffff888016c79138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x75c/0xff0
[  233.890348][   T27]  #1: ffffc9000368fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x79e/0xff0
[  233.905908][   T27]  #2: ffffffff8d44d548 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xa/0x50
[  233.915308][   T27] 5 locks held by syz.0.17/4461:
[  233.920276][   T27] 1 lock held by syz.4.21/4466:
[  233.925544][   T27]  #0: ffffffff8c361568 (trace_types_lock){+.+.}-{3:3}, at: tracing_buffers_open+0x7f/0x4b0
[  233.936033][   T27] 1 lock held by syz.3.20/4468:
[  233.940915][   T27]  #0: ffffffff8c361568 (trace_types_lock){+.+.}-{3:3}, at: tracing_buffers_open+0x7f/0x4b0
[  233.952840][ T4461] Failed to create system directory btrfs
[  233.957080][   T27] 1 lock held by syz.2.19/4469:
[  233.977729][ T4937] syz.0.158 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
[  233.983817][   T27]  #0: ffffffff8c361568 (trace_types_lock){+.+.}-{3:3}, at: tracing_buffers_open+0x7f/0x4b0
[  233.988076][ T4461] Could not create directory for event btrfs_inode_evict
[  234.006287][ T4937] CPU: 1 PID: 4937 Comm: syz.0.158 Not tainted syzkaller #0
[  234.013607][ T4937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  234.013802][   T27] 1 lock held by syz.1.18/4470:
[  234.023685][ T4937] Call Trace:
[  234.023695][ T4937]  <TASK>
[  234.023704][ T4937]  dump_stack_lvl+0x188/0x250
[  234.039513][ T4937]  ? show_regs_print_info+0x20/0x20
[  234.044762][ T4937]  ? load_image+0x410/0x410
[  234.045922][   T27]  #0: ffffffff8c361568 (
[  234.049335][ T4937]  ? local_lock_release+0x170/0x170
[  234.058906][ T4937]  ? __rwlock_init+0x140/0x140
[  234.063700][ T4937]  dump_header+0xd9/0x780
[  234.068069][ T4937]  oom_kill_process+0x20e/0x3d0
[  234.072959][ T4937]  out_of_memory+0xdb2/0x1190
[  234.077671][ T4937]  ? mem_cgroup_out_of_memory+0xbd/0x3b0
[  234.083345][ T4937]  ? mutex_lock_io_nested+0x60/0x60
[  234.083710][   T27] trace_types_lock){+.+.}-{3:3}
[  234.088573][ T4937]  ? unregister_oom_notifier+0x20/0x20
[  234.088583][   T27] , at: tracing_buffers_open+0x7f/0x4b0
[  234.088611][   T27] 1 lock held by syz.5.22/4507:
[  234.093486][ T4937]  mem_cgroup_out_of_memory+0x2b9/0x3b0
[  234.114889][ T4937]  ? mem_cgroup_oom_trylock+0x210/0x210
[  234.120508][ T4937]  ? do_raw_spin_unlock+0x11d/0x230
[  234.123673][   T27]  #0: ffffffff8c361568 (
[  234.125764][ T4937]  try_charge_memcg+0x1075/0x15b0
[  234.125837][ T4937]  ? get_mem_cgroup_from_objcg+0x120/0x120
[  234.130124][   T27] trace_types_lock
[  234.135147][ T4937]  ? rcu_lock_acquire+0x30/0x30
[  234.135173][ T4937]  ? __lock_acquire+0x13dc/0x7b50
[  234.135246][ T4937]  obj_cgroup_charge_pages+0x87/0x190
[  234.160012][ T4937]  ? __memcg_kmem_charge_page+0x380/0x380
[  234.165769][ T4937]  ? rcu_lock_acquire+0x30/0x30
[  234.167980][   T27] ){+.+.}-{3:3}
[  234.170651][ T4937]  obj_cgroup_charge+0x19f/0x320
[  234.170680][ T4937]  ? mod_objcg_mlstate+0x2e0/0x2e0
[  234.170721][ T4937]  slab_pre_alloc_hook+0x9d/0xc0
[  234.170744][ T4937]  ? __d_alloc+0x27/0x6d0
[  234.170767][ T4937]  kmem_cache_alloc+0x3d/0x280
[  234.170794][ T4937]  __d_alloc+0x27/0x6d0
[  234.170819][ T4937]  d_alloc+0x46/0x250
[  234.170844][ T4937]  lookup_one_qstr_excl+0xc6/0x240
[  234.170872][ T4937]  filename_create+0x242/0x450
[  234.170902][ T4937]  ? kern_path_create+0x190/0x190
[  234.170937][ T4937]  do_mkdirat+0xa5/0x5c0
[  234.170964][ T4937]  ? vfs_mkdir+0x570/0x570
[  234.170997][ T4937]  __x64_sys_mkdirat+0x85/0x90
[  234.171021][ T4937]  do_syscall_64+0x4c/0xa0
[  234.171043][ T4937]  ? clear_bhb_loop+0x30/0x80
[  234.171067][ T4937]  ? clear_bhb_loop+0x30/0x80
[  234.171092][ T4937]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[  234.171115][ T4937] RIP: 0033:0x7f7e0dfac159
[  234.171137][ T4937] 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 e8 ff ff ff f7 d8 64 89 01 48
[  234.171156][ T4937] RSP: 002b:00007ffe6ce73288 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[  234.171180][ T4937] RAX: ffffffffffffffda RBX: 00007f7e0e233fa0 RCX: 00007f7e0dfac159
[  234.171198][ T4937] RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
[  234.171214][ T4937] RBP: 00007f7e0e04306b R08: 0000000000000000 R09: 0000000000000000
[  234.171229][ T4937] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  234.171243][ T4937] R13: 00007f7e0e233fac R14: 00007f7e0e233fa0 R15: 00007f7e0e233fa0
[  234.171276][ T4937]  </TASK>
[  234.338055][ T4461] Failed to create system directory btrfs
[  234.349489][   T27] , at: tracing_buffers_open+0x7f/0x4b0
[  234.355213][   T27] 1 lock held by syz.6.23/4541:
[  234.356268][ T4461] Could not create directory for event btrfs_inode_request
[  234.360083][   T27]  #0: ffffffff8c361568 (trace_types_lock){+.+.}-{3:3}, at: tracing_buffers_open+0x7f/0x4b0
[  234.379782][   T27] 1 lock held by syz.7.24/4572:
[  234.384741][   T27]  #0: ffffffff8c361568 (trace_types_lock){+.+.}-{3:3}, at: tracing_buffers_open+0x7f/0x4b0
[  234.395155][ T4937] memory: usage 96kB, limit 96kB, failcnt 59101
[  234.401425][ T4937] memory+swap: usage 96kB, limit 9007199254740988kB, failcnt 0
[  234.409093][   T27] 1 lock held by syz.8.25/4573:
[  234.414010][   T27]  #0: ffffffff8c361568 (trace_types_lock){+.+.}-{3:3}, at: tracing_buffers_open+0x7f/0x4b0
[  234.424254][   T27] 1 lock held by syz.9.26/4574:
[  234.429126][   T27]  #0: ffffffff8c361568 (trace_types_lock){+.+.}-{3:3}, at: tracing_buffers_open+0x7f/0x4b0
[  234.441679][ T4937] kmem: usage 96kB, limit 9007199254740988kB, failcnt 0
[  234.452597][   T27] 1 lock held by syz.4.28/4644:
[  234.457563][   T27]  #0: ffffffff8c361568 (trace_types_lock){+.+.}-{3:3}, at: tracing_buffers_open+0x7f/0x4b0
[  234.467841][ T4937] Memory cgroup stats for /syz0/test:
[  234.467988][ T4937] anon 0
[  234.467988][ T4937] file 0
[  234.467988][ T4937] kernel_stack 0
[  234.467988][ T4937] pagetables 0
[  234.467988][ T4937] percpu 0
[  234.467988][ T4937] sock 0
[  234.467988][ T4937] shmem 0
[  234.467988][ T4937] file_mapped 0
[  234.467988][ T4937] file_dirty 0
[  234.467988][ T4937] file_writeback 0
[  234.467988][ T4937] swapcached 0
[  234.467988][ T4937] anon_thp 0
[  234.467988][ T4937] file_thp 0
[  234.467988][ T4937] shmem_thp 0
[  234.467988][ T4937] inactive_anon 0
[  234.467988][ T4937] active_anon 0
[  234.467988][ T4937] inactive_file 0
[  234.467988][ T4937] active_file 0
[  234.467988][ T4937] unevictable 0
[  234.467988][ T4937] slab_reclaimable 94912
[  234.467988][ T4937] slab_unreclaimable 1992
[  234.467988][ T4937] slab 96904
[  234.467988][ T4937] workingset_refault_anon 0
[  234.467988][ T4937] workingset_refault_file 0
[  234.467988][ T4937] workingset_activate_anon 0
[  234.467988][ T4937] workingset_activate_file 0
[  234.573953][ T4461] Failed to create system directory btrfs
[  234.583580][   T27] 1 lock held by syz.2.36/4662:
[  234.588482][   T27]  #0: ffffffff8c361568 (trace_types_lock){+.+.}-{3:3}, at: tracing_buffers_open+0x7f/0x4b0
[  234.591162][ T4461] Could not create directory for event btrfs_inode_new
[  234.599858][   T27] 1 lock held by syz.1.40/4679:
[  234.610785][   T27]  #0: ffffffff8c361568 (trace_types_lock){+.+.}-{3:3}, at: tracing_buffers_open+0x7f/0x4b0
[  234.621056][   T27] 1 lock held by syz.3.39/4687:
[  234.626007][   T27]  #0: ffffffff8c361568 (trace_types_lock){+.+.}-{3:3}, at: tracing_buffers_open+0x7f/0x4b0
[  234.636212][   T27] 1 lock held by syz.5.61/4712:
[  234.641086][   T27]  #0: ffffffff8c361568 (trace_types_lock){+.+.}-{3:3}, at: tracing_buffers_open+0x7f/0x4b0
[  234.651327][   T27] 1 lock held by syz.6.75/4761:
[  234.656328][   T27]  #0: ffffffff8c361568 (trace_types_lock){+.+.}-{3:3}, at: tracing_buffers_open+0x7f/0x4b0
[  234.666673][   T27] 1 lock held by syz.7.82/4793:
[  234.671544][   T27]  #0: ffffffff8c361568 (trace_types_lock){+.+.}-{3:3}, at: tracing_buffers_open+0x7f/0x4b0
[  234.688937][   T27] 1 lock held by syz.9.85/4814:
[  234.694130][   T27]  #0: ffffffff8c361568 (trace_types_lock){+.+.}-{3:3}, at: tracing_buffers_open+0x7f/0x4b0
[  234.704448][   T27] 1 lock held by syz.8.95/4848:
[  234.709329][   T27]  #0: ffffffff8c361568 (trace_types_lock){+.+.}-{3:3}, at: tracing_buffers_open+0x7f/0x4b0
[  234.719560][   T27] 1 lock held by syz.4.110/4865:
[  234.724628][   T27]  #0: ffffffff8c361568 (trace_types_lock){+.+.}-{3:3}, at: tracing_buffers_open+0x7f/0x4b0
[  234.734857][   T27] 1 lock held by syz.2.121/4886:
[  234.739820][   T27]  #0: ffffffff8c361568 (trace_types_lock){+.+.}-{3:3}, at: tracing_buffers_open+0x7f/0x4b0
[  234.750048][   T27] 3 locks held by syz-executor/4894:
[  234.755745][   T27]  #0: ffffffff8d44d548 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x79f/0xf10
[  234.765374][   T27]  #1: ffff88805ca553e8 (&wg->device_update_lock){+.+.}-{3:3}, at: wg_open+0x223/0x420
[  234.775205][   T27]  #2: ffffffff8c3239e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2d1/0x750
[  234.788587][   T27] 1 lock held by syz.1.129/4904:
[  234.797403][   T27]  #0: ffffffff8c361568 (trace_types_lock){+.+.}-{3:3}, at: tracing_buffers_open+0x7f/0x4b0
[  234.807621][   T27] 1 lock held by syz-executor/4908:
[  234.812852][   T27]  #0: ffffffff8d44d548 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x79f/0xf10
[  234.822448][   T27] 2 locks held by syz-executor/4931:
[  234.827816][   T27]  #0: ffffffff8d441610 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x324/0x5b0
[  234.834845][ T4937] oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=test,mems_allowed=0-1,oom_memcg=/syz0/test,task_memcg=/syz0/test,task=syz.0.158,pid=4937,uid=0
[  234.844882][   T27]  #1: 
[  234.855534][ T4461] Failed to create system directory btrfs
[  234.864239][   T27] ffffffff8d44d548 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x234/0x710
[  234.873359][   T27] 4 locks held by syz.0.158/4937:
[  234.878569][ T4461] Could not create directory for event btrfs_transaction_commit
[  234.888869][   T27] 2 locks held by dhcpcd/4938:
[  234.893757][   T27]  #0: ffff888054374120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xd60
[  234.903497][   T27]  #1: ffffffff8c3239e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a5/0x750
[  234.929222][   T27] 1 lock held by dhcpcd/4939:
[  234.934018][ T4937] Memory cgroup out of memory: Killed process 4937 (syz.0.158) total-vm:44920kB, anon-rss:1324kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000
[  234.938471][   T27]  #0: 
[  234.958078][ T4461] Failed to create system directory ocfs2
[  234.966824][   T27] ffff88804cd92120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xd60
[  234.976183][   T27] 1 lock held by dhcpcd/4940:
[  234.980888][   T27]  #0: ffff88804ee12120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xd60
[  234.992914][ T4461] Could not create directory for event ocfs2_remove_block_from_cache
[  235.002017][   T27] 
[  235.007696][   T27] =============================================
[  235.007696][   T27] 
[  235.023018][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[  235.026841][   T27] NMI backtrace for cpu 0
[  235.034696][   T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[  235.041921][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  235.042627][ T4409] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[  235.051983][   T27] Call Trace:
[  235.051993][   T27]  <TASK>
[  235.052002][   T27]  dump_stack_lvl+0x188/0x250
[  235.052029][   T27]  ? show_regs_print_info+0x20/0x20
[  235.052050][   T27]  ? load_image+0x410/0x410
[  235.052067][   T27]  ? tick_nohz_tick_stopped+0x7b/0xb0
[  235.052092][   T27]  ? nmi_cpu_backtrace+0x1b2/0x3d0
[  235.052118][   T27]  nmi_cpu_backtrace+0x3a2/0x3d0
[  235.052141][   T27]  ? nmi_trigger_cpumask_backtrace+0x280/0x280
[  235.052160][   T27]  ? _printk+0xda/0x130
[  235.105844][   T27]  ? load_image+0x410/0x410
[  235.110384][   T27]  ? load_image+0x410/0x410
[  235.114921][   T27]  ? arch_trigger_cpumask_backtrace+0x10/0x10
[  235.121022][   T27]  nmi_trigger_cpumask_backtrace+0x163/0x280
[  235.127030][   T27]  watchdog+0xe1b/0xe60
[  235.131246][   T27]  kthread+0x42e/0x520
[  235.135347][   T27]  ? hungtask_pm_notify+0x40/0x40
[  235.140417][   T27]  ? kthread_blkcg+0xd0/0xd0
[  235.145041][   T27]  ret_from_fork+0x1f/0x30
[  235.149507][   T27]  </TASK>
[  235.160745][   T27] Sending NMI from CPU 0 to CPUs 1:
[  235.169040][    C1] NMI backtrace for cpu 1
[  235.169052][    C1] CPU: 1 PID: 144 Comm: kworker/u4:1 Not tainted syzkaller #0
[  235.169069][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  235.169079][    C1] Workqueue: events_unbound cfg80211_wiphy_work
[  235.169102][    C1] RIP: 0010:mark_lock+0xe2/0x320
[  235.169120][    C1] Code: 03 42 0f b6 04 28 84 c0 0f 85 06 02 00 00 83 3d 73 db d1 14 00 74 36 45 31 ff 49 83 c7 50 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 <74> 08 4c 89 ff e8 34 a4 60 00 b8 01 00 00 00 45 85 27 74 50 48 83
[  235.169135][    C1] RSP: 0018:ffffc9000136f460 EFLAGS: 00000046
[  235.169148][    C1] RAX: 1ffffffff1f7bb5a RBX: ffff8880185f8000 RCX: ffffffff815da3d4
[  235.169161][    C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff901f11c8
[  235.169171][    C1] RBP: 0000000000000006 R08: ffffffff901f11cf R09: 1ffffffff203e239
[  235.169183][    C1] R10: dffffc0000000000 R11: fffffbfff203e23a R12: 0000000000000040
[  235.169195][    C1] R13: dffffc0000000000 R14: ffff8880185f8b18 R15: ffffffff8fbddad0
[  235.169208][    C1] FS:  0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
[  235.169222][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  235.169233][    C1] CR2: 0000559e8bea8d90 CR3: 000000002b652000 CR4: 00000000003506e0
[  235.169248][    C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  235.169258][    C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  235.169268][    C1] Call Trace:
[  235.169273][    C1]  <TASK>
[  235.169282][    C1]  lockdep_hardirqs_on_prepare+0x380/0x7c0
[  235.169305][    C1]  ? lock_chain_count+0x20/0x20
[  235.169331][    C1]  ? ___slab_alloc+0x4ee/0xdd0
[  235.169349][    C1]  trace_hardirqs_on+0x67/0x80
[  235.169366][    C1]  ___slab_alloc+0x942/0xdd0
[  235.169381][    C1]  ? ieee802_11_parse_elems_crc+0xb3/0x1090
[  235.169401][    C1]  __kmalloc+0x11d/0x340
[  235.169415][    C1]  ? ieee802_11_parse_elems_crc+0xb3/0x1090
[  235.169434][    C1]  ieee802_11_parse_elems_crc+0xb3/0x1090
[  235.169459][    C1]  ? __lock_acquire+0x7b50/0x7b50
[  235.169478][    C1]  ? ieee80211_queue_delayed_work+0x150/0x150
[  235.169499][    C1]  ieee80211_bss_info_update+0x74d/0xa80
[  235.169523][    C1]  ? ieee80211_rx_bss_put+0x60/0x60
[  235.169544][    C1]  ? ieee80211_mandatory_rates+0x1c8/0x230
[  235.169565][    C1]  ieee80211_ibss_rx_queued_mgmt+0x1763/0x2b50
[  235.169590][    C1]  ? mark_lock+0x94/0x320
[  235.169604][    C1]  ? ieee80211_ibss_rx_no_sta+0x750/0x750
[  235.169621][    C1]  ? lockdep_hardirqs_on_prepare+0x448/0x7c0
[  235.169641][    C1]  ? lock_chain_count+0x20/0x20
[  235.169659][    C1]  ? __rwlock_init+0x140/0x140
[  235.169676][    C1]  ? kcov_remote_start+0x135/0x5e0
[  235.169691][    C1]  ? lockdep_hardirqs_on+0x94/0x140
[  235.169713][    C1]  ieee80211_iface_work+0x714/0xc50
[  235.169730][    C1]  ? _raw_spin_unlock_irq+0x1f/0x40
[  235.169749][    C1]  cfg80211_wiphy_work+0x224/0x260
[  235.169768][    C1]  process_one_work+0x867/0xff0
[  235.169797][    C1]  ? worker_detach_from_pool+0x240/0x240
[  235.169814][    C1]  ? lockdep_hardirqs_off+0x70/0x100
[  235.169833][    C1]  ? _raw_spin_lock_irq+0xb7/0xf0
[  235.169848][    C1]  ? _raw_spin_lock_irqsave+0x100/0x100
[  235.169865][    C1]  ? wq_worker_running+0x97/0x170
[  235.169881][    C1]  worker_thread+0xad7/0x12a0
[  235.169903][    C1]  ? _raw_spin_unlock_irqrestore+0xc1/0x120
[  235.169923][    C1]  kthread+0x42e/0x520
[  235.169938][    C1]  ? rcu_lock_release+0x20/0x20
[  235.169953][    C1]  ? kthread_blkcg+0xd0/0xd0
[  235.169968][    C1]  ret_from_fork+0x1f/0x30
[  235.169990][    C1]  </TASK>
[  235.452899][ T4461] Failed to create system directory ocfs2
[  235.535681][   T27] Kernel panic - not syncing: hung_task: blocked tasks
[  235.542601][   T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
[  235.549823][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  235.559958][   T27] Call Trace:
[  235.563256][   T27]  <TASK>
[  235.566223][   T27]  dump_stack_lvl+0x188/0x250
[  235.570933][   T27]  ? show_regs_print_info+0x20/0x20
[  235.576155][   T27]  ? load_image+0x410/0x410
[  235.580699][   T27]  panic+0x2f8/0x850
[  235.584624][   T27]  ? schedule_preempt_disabled+0x20/0x20
[  235.590287][   T27]  ? bpf_jit_dump+0xd0/0xd0
[  235.594830][   T27]  ? nmi_trigger_cpumask_backtrace+0x260/0x280
[  235.601027][   T27]  watchdog+0xe5a/0xe60
[  235.605222][   T27]  kthread+0x42e/0x520
[  235.609323][   T27]  ? hungtask_pm_notify+0x40/0x40
[  235.614373][   T27]  ? kthread_blkcg+0xd0/0xd0
[  235.618995][   T27]  ret_from_fork+0x1f/0x30
[  235.623449][   T27]  </TASK>
[  235.626616][   T27] Kernel Offset: disabled
[  235.630968][   T27] Rebooting in 86400 seconds..