Warning: Permanently added '10.128.0.196' (ED25519) to the list of known hosts. 2025/09/16 10:18:23 parsed 1 programs [ 86.833639][ T24] cfg80211: failed to load regulatory.db [ 87.962219][ T5871] cgroup: Unknown subsys name 'net' [ 88.094834][ T5871] cgroup: Unknown subsys name 'cpuset' [ 88.103337][ T5871] cgroup: Unknown subsys name 'rlimit' [ 89.506579][ T5871] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 92.329850][ T5878] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 93.542022][ T5899] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 93.549890][ T5899] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 93.558081][ T5899] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 93.566171][ T5899] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 93.577625][ T5899] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 95.379379][ T5942] chnl_net:caif_netlink_parms(): no params data found [ 95.459787][ T5942] bridge0: port 1(bridge_slave_0) entered blocking state [ 95.468149][ T5942] bridge0: port 1(bridge_slave_0) entered disabled state [ 95.475492][ T5942] bridge_slave_0: entered allmulticast mode [ 95.483395][ T5942] bridge_slave_0: entered promiscuous mode [ 95.492885][ T5942] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.500034][ T5942] bridge0: port 2(bridge_slave_1) entered disabled state [ 95.508507][ T5942] bridge_slave_1: entered allmulticast mode [ 95.515629][ T5942] bridge_slave_1: entered promiscuous mode [ 95.557998][ T5942] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 95.570809][ T5942] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 95.606995][ T5942] team0: Port device team_slave_0 added [ 95.614655][ T5942] team0: Port device team_slave_1 added [ 95.639822][ T5942] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 95.647464][ T5942] 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. [ 95.673420][ T5942] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 95.707877][ T5942] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 95.715579][ T5942] 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. [ 95.741554][ T5942] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 95.786509][ T5942] hsr_slave_0: entered promiscuous mode [ 95.793416][ T5942] hsr_slave_1: entered promiscuous mode [ 95.965637][ T5942] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 95.978490][ T5942] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 95.989605][ T5942] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 96.000338][ T5942] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 96.070243][ T5942] 8021q: adding VLAN 0 to HW filter on device bond0 [ 96.091736][ T5942] 8021q: adding VLAN 0 to HW filter on device team0 [ 96.106320][ T50] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.113522][ T50] bridge0: port 1(bridge_slave_0) entered forwarding state [ 96.130166][ T50] bridge0: port 2(bridge_slave_1) entered blocking state [ 96.137380][ T50] bridge0: port 2(bridge_slave_1) entered forwarding state [ 96.296682][ T5942] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 96.337510][ T5942] veth0_vlan: entered promiscuous mode [ 96.348899][ T5942] veth1_vlan: entered promiscuous mode [ 96.377421][ T5942] veth0_macvtap: entered promiscuous mode [ 96.386970][ T5942] veth1_macvtap: entered promiscuous mode [ 96.403285][ T5942] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 96.418057][ T5942] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 96.437148][ T1166] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.446900][ T1166] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.457508][ T1166] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.466916][ T1166] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.598504][ T12] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 96.666115][ T12] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 96.727964][ T1166] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 96.736422][ T1166] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 96.752765][ T12] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 96.788463][ T2911] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 96.796737][ T2911] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 96.814747][ T12] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2025/09/16 10:18:35 executed programs: 0 [ 97.211049][ T5183] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 97.219551][ T5183] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 97.229686][ T5183] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 97.238930][ T5183] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 97.247171][ T5183] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 97.394620][ T5973] chnl_net:caif_netlink_parms(): no params data found [ 97.479938][ T5973] bridge0: port 1(bridge_slave_0) entered blocking state [ 97.487601][ T5973] bridge0: port 1(bridge_slave_0) entered disabled state [ 97.495098][ T5973] bridge_slave_0: entered allmulticast mode [ 97.503615][ T5973] bridge_slave_0: entered promiscuous mode [ 97.511825][ T5973] bridge0: port 2(bridge_slave_1) entered blocking state [ 97.518974][ T5973] bridge0: port 2(bridge_slave_1) entered disabled state [ 97.526349][ T5973] bridge_slave_1: entered allmulticast mode [ 97.534324][ T5973] bridge_slave_1: entered promiscuous mode [ 97.565948][ T5973] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 97.578657][ T5973] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 97.618887][ T5973] team0: Port device team_slave_0 added [ 97.627119][ T5973] team0: Port device team_slave_1 added [ 97.658506][ T5973] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 97.665601][ T5973] 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. [ 97.692279][ T5973] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 97.705597][ T5973] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 97.712858][ T5973] 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. [ 97.739323][ T5973] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 97.795654][ T5973] hsr_slave_0: entered promiscuous mode [ 97.803372][ T5973] hsr_slave_1: entered promiscuous mode [ 97.809775][ T5973] debugfs: 'hsr0' already exists in 'hsr' [ 97.815866][ T5973] Cannot create hsr debugfs directory [ 99.312310][ T5183] Bluetooth: hci0: command tx timeout [ 99.464105][ T12] bridge_slave_1: left allmulticast mode [ 99.469903][ T12] bridge_slave_1: left promiscuous mode [ 99.477034][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 99.491735][ T12] bridge_slave_0: left allmulticast mode [ 99.497412][ T12] bridge_slave_0: left promiscuous mode [ 99.503652][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 99.737061][ T12] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 99.747989][ T12] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 99.758342][ T12] bond0 (unregistering): Released all slaves [ 99.850301][ T12] hsr_slave_0: left promiscuous mode [ 99.857330][ T12] hsr_slave_1: left promiscuous mode [ 99.865054][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 99.873778][ T12] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 99.883380][ T12] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 99.890795][ T12] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 99.918233][ T12] veth1_macvtap: left promiscuous mode [ 99.924142][ T12] veth0_macvtap: left promiscuous mode [ 99.929846][ T12] veth1_vlan: left promiscuous mode [ 99.936185][ T12] veth0_vlan: left promiscuous mode [ 100.397975][ T12] team0 (unregistering): Port device team_slave_1 removed [ 100.425957][ T12] team0 (unregistering): Port device team_slave_0 removed [ 100.963772][ T5973] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 100.975798][ T5973] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 100.997766][ T5973] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 101.015005][ T5973] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 101.231068][ T5973] 8021q: adding VLAN 0 to HW filter on device bond0 [ 101.275503][ T5973] 8021q: adding VLAN 0 to HW filter on device team0 [ 101.293085][ T13] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.300194][ T13] bridge0: port 1(bridge_slave_0) entered forwarding state [ 101.340071][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.347262][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 101.392699][ T5183] Bluetooth: hci0: command tx timeout [ 101.424307][ T5973] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 101.688512][ T5973] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 101.755212][ T5973] veth0_vlan: entered promiscuous mode [ 101.774881][ T5973] veth1_vlan: entered promiscuous mode [ 101.815891][ T5973] veth0_macvtap: entered promiscuous mode [ 101.827911][ T5973] veth1_macvtap: entered promiscuous mode [ 101.858203][ T5973] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 101.881090][ T5973] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 101.903105][ T2911] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 101.917199][ T2911] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 101.934234][ T2911] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 101.943107][ T2911] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.017020][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 102.032921][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 102.075346][ T13] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 102.083249][ T13] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 106.162489][ C0] sched: DL replenish lagged too much [ 207.261490][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 207.268540][ C0] rcu: 1-...!: (1 GPs behind) idle=3aa4/1/0x4000000000000000 softirq=15601/15602 fqs=59 [ 207.278837][ C0] rcu: (detected by 0, t=10505 jiffies, g=10297, q=397 ncpus=2) [ 207.286574][ C0] Sending NMI from CPU 0 to CPUs 1: [ 207.286614][ C1] NMI backtrace for cpu 1 [ 207.286643][ C1] CPU: 1 UID: 0 PID: 6042 Comm: sed Not tainted syzkaller #0 PREEMPT(full) [ 207.286670][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 207.286688][ C1] RIP: 0010:__lock_acquire+0x870/0xd20 [ 207.286724][ C1] Code: f0 41 89 cf 41 c1 c7 13 29 ce 41 31 f7 01 c1 44 29 f8 44 01 f9 41 c1 c7 04 41 31 c7 49 c1 e7 20 49 09 cf 83 3d e4 f0 26 0e 00 <0f> 85 36 02 00 00 48 83 7c 24 28 00 0f 84 bc 01 00 00 41 8b 46 f8 [ 207.286736][ C1] RSP: 0018:ffffc90000a08b70 EFLAGS: 00000046 [ 207.286756][ C1] RAX: 00000000d6871fb1 RBX: 0000000000000003 RCX: 0000000079909773 [ 207.286766][ C1] RDX: 00000000001caf3d RSI: 00000000afae91f8 RDI: ffff88802c3c3c80 [ 207.286777][ C1] RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff81adbfa2 [ 207.286787][ C1] R10: dffffc0000000000 R11: fffffbfff1f88787 R12: 0000000000000073 [ 207.286798][ C1] R13: ffff88802c3c47b0 R14: ffff88802c3c4828 R15: 4346289379909773 [ 207.286809][ C1] FS: 0000000000000000(0000) GS:ffff888125ae0000(0000) knlGS:0000000000000000 [ 207.286821][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 207.286832][ C1] CR2: 00007fc34ea224e8 CR3: 00000000720e8000 CR4: 00000000003526f0 [ 207.286845][ C1] Call Trace: [ 207.286853][ C1] [ 207.286864][ C1] ? __hrtimer_run_queues+0x602/0xc60 [ 207.286886][ C1] lock_acquire+0x120/0x360 [ 207.286905][ C1] ? __hrtimer_run_queues+0x602/0xc60 [ 207.286926][ C1] ? advance_sched+0x9f8/0xc90 [ 207.286941][ C1] ? advance_sched+0x9f8/0xc90 [ 207.286953][ C1] ? advance_sched+0x9f8/0xc90 [ 207.286967][ C1] _raw_spin_lock_irq+0xa2/0xf0 [ 207.286987][ C1] ? __hrtimer_run_queues+0x602/0xc60 [ 207.287008][ C1] ? __pfx__raw_spin_lock_irq+0x10/0x10 [ 207.287030][ C1] __hrtimer_run_queues+0x602/0xc60 [ 207.287058][ C1] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 207.287078][ C1] ? read_tsc+0x9/0x20 [ 207.287099][ C1] hrtimer_interrupt+0x45b/0xaa0 [ 207.287130][ C1] __sysvec_apic_timer_interrupt+0x10b/0x410 [ 207.287153][ C1] sysvec_apic_timer_interrupt+0xa1/0xc0 [ 207.287175][ C1] [ 207.287180][ C1] [ 207.287186][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 207.287203][ C1] RIP: 0010:_raw_spin_unlock_irqrestore+0xa8/0x110 [ 207.287223][ C1] Code: 74 05 e8 db e5 40 f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 f3 7c 09 f6 65 8b 05 ac 68 3d 07 85 c0 74 40 48 c7 04 24 0e 36 [ 207.287235][ C1] RSP: 0018:ffffc90002ef6fa0 EFLAGS: 00000206 [ 207.287248][ C1] RAX: c40c4dc7bc3a9000 RBX: 0000000000000a02 RCX: c40c4dc7bc3a9000 [ 207.287259][ C1] RDX: 0000000000000007 RSI: ffffffff8dbc0fba RDI: 0000000000000001 [ 207.287269][ C1] RBP: ffffc90002ef7028 R08: ffffffff8fc43c37 R09: 1ffffffff1f88786 [ 207.287280][ C1] R10: dffffc0000000000 R11: fffffbfff1f88787 R12: dffffc0000000000 [ 207.287291][ C1] R13: 0000000000000d40 R14: ffffffff8eae95b0 R15: 1ffff920005dedf4 [ 207.287309][ C1] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 207.287333][ C1] stack_depot_save_flags+0x41b/0x860 [ 207.287352][ C1] ? is_bpf_text_address+0x26/0x2b0 [ 207.287374][ C1] kasan_save_track+0x4f/0x80 [ 207.287395][ C1] ? kasan_save_track+0x3e/0x80 [ 207.287415][ C1] ? __kasan_slab_alloc+0x6c/0x80 [ 207.287427][ C1] ? kmem_cache_alloc_noprof+0x367/0x6e0 [ 207.287447][ C1] ? jbd2_journal_add_journal_head+0x95/0x4b0 [ 207.287468][ C1] ? jbd2_journal_get_write_access+0x1c9/0x230 [ 207.287483][ C1] ? __ext4_journal_get_write_access+0x1c3/0x570 [ 207.287501][ C1] ? ext4_reserve_inode_write+0x294/0x360 [ 207.287517][ C1] ? __ext4_mark_inode_dirty+0x15b/0x700 [ 207.287538][ C1] ? ext4_dirty_inode+0xd0/0x110 [ 207.287553][ C1] ? __mark_inode_dirty+0x2ec/0xe10 [ 207.287571][ C1] ? touch_atime+0x59b/0x6d0 [ 207.287587][ C1] ? ext4_file_mmap_prepare+0x24d/0x440 [ 207.287600][ C1] ? mmap_region+0xb38/0x1c70 [ 207.287617][ C1] ? do_mmap+0xc45/0x10d0 [ 207.287635][ C1] ? vm_mmap_pgoff+0x2a6/0x4d0 [ 207.287652][ C1] ? ksys_mmap_pgoff+0x51f/0x760 [ 207.287675][ C1] ? do_syscall_64+0xfa/0xfa0 [ 207.287695][ C1] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 207.287725][ C1] __kasan_slab_alloc+0x6c/0x80 [ 207.287739][ C1] kmem_cache_alloc_noprof+0x367/0x6e0 [ 207.287760][ C1] ? jbd2_journal_add_journal_head+0x95/0x4b0 [ 207.287782][ C1] jbd2_journal_add_journal_head+0x95/0x4b0 [ 207.287804][ C1] jbd2_journal_get_write_access+0x1c9/0x230 [ 207.287821][ C1] __ext4_journal_get_write_access+0x1c3/0x570 [ 207.287840][ C1] ? __pfx___ext4_journal_get_write_access+0x10/0x10 [ 207.287858][ C1] ? __pfx___might_resched+0x10/0x10 [ 207.287879][ C1] ? rcu_is_watching+0x15/0xb0 [ 207.287902][ C1] ext4_reserve_inode_write+0x294/0x360 [ 207.287923][ C1] __ext4_mark_inode_dirty+0x15b/0x700 [ 207.287948][ C1] ext4_dirty_inode+0xd0/0x110 [ 207.287965][ C1] ? __pfx_ext4_dirty_inode+0x10/0x10 [ 207.287981][ C1] __mark_inode_dirty+0x2ec/0xe10 [ 207.287999][ C1] ? ext4_file_mmap_prepare+0x24d/0x440 [ 207.288014][ C1] touch_atime+0x59b/0x6d0 [ 207.288035][ C1] ? ext4_file_mmap_prepare+0x24d/0x440 [ 207.288051][ C1] ext4_file_mmap_prepare+0x24d/0x440 [ 207.288068][ C1] mmap_region+0xb38/0x1c70 [ 207.288091][ C1] ? trace_contention_end+0x39/0x120 [ 207.288105][ C1] ? __pfx_mmap_region+0x10/0x10 [ 207.288151][ C1] ? mm_get_unmapped_area_vmflags+0xb3/0xe0 [ 207.288174][ C1] ? thp_get_unmapped_area_vmflags+0x161/0x310 [ 207.288190][ C1] ? cap_mmap_addr+0xb0/0x100 [ 207.288205][ C1] ? bpf_lsm_mmap_addr+0x9/0x20 [ 207.288221][ C1] ? security_mmap_addr+0x71/0x270 [ 207.288236][ C1] ? shmem_mapping+0xd/0x50 [ 207.288252][ C1] ? memfd_check_seals_mmap+0xc5/0x200 [ 207.288271][ C1] do_mmap+0xc45/0x10d0 [ 207.288295][ C1] ? __pfx_do_mmap+0x10/0x10 [ 207.288312][ C1] ? down_write_killable+0x178/0x230 [ 207.288329][ C1] ? __pfx_down_write_killable+0x10/0x10 [ 207.288344][ C1] ? common_file_perm+0x1b5/0x230 [ 207.288364][ C1] vm_mmap_pgoff+0x2a6/0x4d0 [ 207.288385][ C1] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 207.288403][ C1] ? __fget_files+0x2a/0x420 [ 207.288418][ C1] ? __fget_files+0x2a/0x420 [ 207.288432][ C1] ? __fget_files+0x2a/0x420 [ 207.288448][ C1] ksys_mmap_pgoff+0x51f/0x760 [ 207.288470][ C1] do_syscall_64+0xfa/0xfa0 [ 207.288490][ C1] ? lockdep_hardirqs_on+0x9c/0x150 [ 207.288511][ C1] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 207.288525][ C1] ? clear_bhb_loop+0x60/0xb0 [ 207.288541][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 207.288555][ C1] RIP: 0033:0x7fc34ea53242 [ 207.288576][ C1] Code: 08 00 04 00 00 eb e2 90 41 f7 c1 ff 0f 00 00 75 27 55 89 cd 53 48 89 fb 48 85 ff 74 33 41 89 ea 48 89 df b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5e 5b 5d c3 0f 1f 00 c7 05 46 40 01 00 16 00 [ 207.288588][ C1] RSP: 002b:00007ffc758046c8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 [ 207.288602][ C1] RAX: ffffffffffffffda RBX: 00007fc34e7ad000 RCX: 00007fc34ea53242 [ 207.288613][ C1] RDX: 0000000000000005 RSI: 000000000014e000 RDI: 00007fc34e7ad000 [ 207.288623][ C1] RBP: 0000000000000812 R08: 0000000000000003 R09: 0000000000028000 [ 207.288632][ C1] R10: 0000000000000812 R11: 0000000000000206 R12: 00007ffc75804718 [ 207.288641][ C1] R13: 00007fc34ea275f0 R14: 00007ffc75804f00 R15: 00000fff8eb008dc [ 207.288663][ C1] [ 207.289602][ C0] rcu: rcu_preempt kthread starved for 10210 jiffies! g10297 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 208.009061][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 208.019035][ C0] rcu: RCU grace-period kthread stack dump: [ 208.024936][ C0] task:rcu_preempt state:R running task stack:26696 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00004000 [ 208.038456][ C0] Call Trace: [ 208.041734][ C0] [ 208.044666][ C0] __schedule+0x1798/0x4cc0 [ 208.049199][ C0] ? __lock_acquire+0xab9/0xd20 [ 208.054054][ C0] ? __pfx___schedule+0x10/0x10 [ 208.058930][ C0] ? schedule+0x91/0x360 [ 208.063178][ C0] schedule+0x165/0x360 [ 208.067336][ C0] schedule_timeout+0x12b/0x270 [ 208.072189][ C0] ? __pfx_schedule_timeout+0x10/0x10 [ 208.077575][ C0] ? _raw_spin_unlock_irqrestore+0x85/0x110 [ 208.083497][ C0] ? __pfx_process_timeout+0x10/0x10 [ 208.088877][ C0] ? prepare_to_swait_event+0x341/0x380 [ 208.094431][ C0] rcu_gp_fqs_loop+0x301/0x1540 [ 208.099302][ C0] ? __pfx_rcu_watching_snap_recheck+0x10/0x10 [ 208.105457][ C0] ? __pfx_rcu_gp_fqs_loop+0x10/0x10 [ 208.110738][ C0] ? _raw_spin_unlock_irq+0x2e/0x50 [ 208.115943][ C0] ? finish_swait+0xcd/0x1f0 [ 208.120533][ C0] rcu_gp_kthread+0x99/0x390 [ 208.125128][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 208.130329][ C0] ? __kthread_parkme+0x7b/0x200 [ 208.135273][ C0] ? __kthread_parkme+0x1a1/0x200 [ 208.140318][ C0] kthread+0x711/0x8a0 [ 208.144396][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 208.149600][ C0] ? __pfx_kthread+0x10/0x10 [ 208.154192][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 208.159395][ C0] ? lockdep_hardirqs_on+0x9c/0x150 [ 208.164598][ C0] ? __pfx_kthread+0x10/0x10 [ 208.169185][ C0] ret_from_fork+0x4bc/0x870 [ 208.173781][ C0] ? __pfx_ret_from_fork+0x10/0x10 [ 208.178903][ C0] ? __switch_to_asm+0x39/0x70 [ 208.183665][ C0] ? __switch_to_asm+0x33/0x70 [ 208.188425][ C0] ? __pfx_kthread+0x10/0x10 [ 208.193015][ C0] ret_from_fork_asm+0x1a/0x30 [ 208.197795][ C0] [ 208.200818][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 208.207134][ C0] CPU: 0 UID: 0 PID: 5873 Comm: udevd Not tainted syzkaller #0 PREEMPT(full) [ 208.215975][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 208.226025][ C0] RIP: 0010:smp_call_function_many_cond+0xd33/0x12d0 [ 208.232705][ C0] Code: 45 8b 2c 24 44 89 ee 83 e6 01 31 ff e8 e6 7f 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 07 e8 91 7b 0b 00 eb 38 f3 90 <42> 0f b6 04 2b 84 c0 75 11 41 f7 04 24 01 00 00 00 74 1e e8 75 7b [ 208.252303][ C0] RSP: 0000:ffffc900039f7700 EFLAGS: 00000293 [ 208.258370][ C0] RAX: ffffffff81b457ab RBX: 1ffff110170e8005 RCX: ffff88801ffb1e40 [ 208.266339][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 208.274303][ C0] RBP: ffffc900039f7880 R08: ffffffff8fc43c37 R09: 1ffffffff1f88786 [ 208.282271][ C0] R10: dffffc0000000000 R11: fffffbfff1f88787 R12: ffff8880b8740028 [ 208.290234][ C0] R13: dffffc0000000000 R14: ffff8880b863b240 R15: 0000000000000001 [ 208.298204][ C0] FS: 00007f45a83bc880(0000) GS:ffff8881259e0000(0000) knlGS:0000000000000000 [ 208.307128][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 208.313706][ C0] CR2: 00005593b3898568 CR3: 000000007210a000 CR4: 00000000003526f0 [ 208.321674][ C0] Call Trace: [ 208.324947][ C0] [ 208.327875][ C0] ? __pfx_should_flush_tlb+0x10/0x10 [ 208.333245][ C0] ? __pfx_flush_tlb_func+0x10/0x10 [ 208.338450][ C0] ? __pfx_smp_call_function_many_cond+0x10/0x10 [ 208.344779][ C0] ? __alloc_frozen_pages_noprof+0x1d6/0x370 [ 208.350766][ C0] ? rcu_is_watching+0x15/0xb0 [ 208.355532][ C0] ? __pfx_should_flush_tlb+0x10/0x10 [ 208.360906][ C0] ? __pfx_flush_tlb_func+0x10/0x10 [ 208.366103][ C0] on_each_cpu_cond_mask+0x3f/0x80 [ 208.371209][ C0] flush_tlb_mm_range+0x6b1/0x12d0 [ 208.376317][ C0] ? page_table_check_clear+0x187/0x700 [ 208.381875][ C0] ? __pfx_flush_tlb_mm_range+0x10/0x10 [ 208.387419][ C0] ? page_table_check_clear+0x187/0x700 [ 208.392970][ C0] ? page_table_check_clear+0x4f3/0x700 [ 208.398517][ C0] ? page_table_check_clear+0x187/0x700 [ 208.404070][ C0] ptep_clear_flush+0x120/0x170 [ 208.408928][ C0] do_wp_page+0x1bc2/0x5800 [ 208.413433][ C0] ? __lock_acquire+0xab9/0xd20 [ 208.418292][ C0] ? do_wp_page+0x161d/0x5800 [ 208.422977][ C0] ? __pfx_do_wp_page+0x10/0x10 [ 208.427823][ C0] ? do_raw_spin_lock+0x121/0x290 [ 208.432845][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 208.438211][ C0] ? ___pte_offset_map+0x240/0x340 [ 208.443334][ C0] __handle_mm_fault+0x102e/0x5440 [ 208.448459][ C0] ? lock_vma_under_rcu+0x1a3/0x450 [ 208.453650][ C0] ? __pfx___handle_mm_fault+0x10/0x10 [ 208.459122][ C0] ? lock_vma_under_rcu+0x3d2/0x450 [ 208.464318][ C0] ? __pfx_lock_vma_under_rcu+0x10/0x10 [ 208.469864][ C0] handle_mm_fault+0x40a/0x8e0 [ 208.474640][ C0] do_user_addr_fault+0xa81/0x1390 [ 208.479759][ C0] ? rcu_is_watching+0x15/0xb0 [ 208.484527][ C0] ? trace_page_fault_user+0x84/0x1e0 [ 208.489906][ C0] exc_page_fault+0x82/0x100 [ 208.494500][ C0] asm_exc_page_fault+0x26/0x30 [ 208.499347][ C0] RIP: 0033:0x7f45a7cb5b69 [ 208.503769][ C0] Code: 10 48 81 f9 ff 03 00 00 76 28 48 8b 57 20 48 85 d2 74 1f 48 3b 7a 28 75 76 48 8b 4f 28 48 3b 79 20 75 6c 48 83 78 20 00 74 17 <48> 89 4a 28 48 89 51 20 48 83 c4 08 c3 66 2e 0f 1f 84 00 00 00 00 [ 208.523369][ C0] RSP: 002b:00007fffca257670 EFLAGS: 00010202 [ 208.529436][ C0] RAX: 00007f45a7df21d0 RBX: 00005593b3898540 RCX: 00005593b3898540 [ 208.537401][ C0] RDX: 00005593b3898540 RSI: 00007f45a7df21d0 RDI: 00005593b3898540 [ 208.545375][ C0] RBP: 00007f45a7df1ac0 R08: 0000000000002760 R09: 0000000000000000 [ 208.553349][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000049c0 [ 208.561313][ C0] R13: 00005593b389cf00 R14: 0000000000002020 R15: 00007f45a7df1ac0 [ 208.569299][ C0]