Warning: Permanently added '10.128.0.38' (ED25519) to the list of known hosts. 2025/09/06 01:45:01 parsed 1 programs [ 111.116786][ T30] audit: type=1400 audit(1757123103.341:116): avc: denied { unlink } for pid=6191 comm="syz-executor" name="swap-file" dev="sda1" ino=2026 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" [ 112.407906][ T6191] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 114.467570][ T6201] chnl_net:caif_netlink_parms(): no params data found [ 114.518685][ T6201] bridge0: port 1(bridge_slave_0) entered blocking state [ 114.525920][ T6201] bridge0: port 1(bridge_slave_0) entered disabled state [ 114.533174][ T6201] bridge_slave_0: entered allmulticast mode [ 114.540206][ T6201] bridge_slave_0: entered promiscuous mode [ 114.548396][ T6201] bridge0: port 2(bridge_slave_1) entered blocking state [ 114.555639][ T6201] bridge0: port 2(bridge_slave_1) entered disabled state [ 114.562842][ T6201] bridge_slave_1: entered allmulticast mode [ 114.570603][ T6201] bridge_slave_1: entered promiscuous mode [ 114.595349][ T6201] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 114.606471][ T6201] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 114.632958][ T6201] team0: Port device team_slave_0 added [ 114.640383][ T6201] team0: Port device team_slave_1 added [ 114.662207][ T6201] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 114.669423][ T6201] 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. [ 114.695686][ T6201] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 114.707579][ T6201] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 114.715092][ T6201] 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. [ 114.741148][ T6201] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 114.775184][ T6201] hsr_slave_0: entered promiscuous mode [ 114.781740][ T6201] hsr_slave_1: entered promiscuous mode [ 115.252637][ T6201] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 115.268025][ T6201] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 115.281766][ T6201] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 115.292726][ T6201] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 115.330452][ T6201] bridge0: port 2(bridge_slave_1) entered blocking state [ 115.337751][ T6201] bridge0: port 2(bridge_slave_1) entered forwarding state [ 115.345795][ T6201] bridge0: port 1(bridge_slave_0) entered blocking state [ 115.353099][ T6201] bridge0: port 1(bridge_slave_0) entered forwarding state [ 115.420794][ T6201] 8021q: adding VLAN 0 to HW filter on device bond0 [ 115.440330][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 115.449425][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 115.468616][ T6201] 8021q: adding VLAN 0 to HW filter on device team0 [ 115.483362][ T13] bridge0: port 1(bridge_slave_0) entered blocking state [ 115.490560][ T13] bridge0: port 1(bridge_slave_0) entered forwarding state [ 115.506537][ T3573] bridge0: port 2(bridge_slave_1) entered blocking state [ 115.514036][ T3573] bridge0: port 2(bridge_slave_1) entered forwarding state [ 115.749009][ T6201] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 115.799114][ T6201] veth0_vlan: entered promiscuous mode [ 115.812610][ T6201] veth1_vlan: entered promiscuous mode [ 115.851178][ T6201] veth0_macvtap: entered promiscuous mode [ 115.861249][ T6201] veth1_macvtap: entered promiscuous mode [ 115.894933][ T6201] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 115.913342][ T6201] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 115.925999][ T36] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 115.940214][ T36] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 115.949511][ T36] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 115.964475][ T36] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 116.013295][ T30] audit: type=1400 audit(1757123108.231:117): avc: denied { mount } for pid=6201 comm="syz-executor" name="/" dev="gadgetfs" ino=8757 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nfs_t tclass=filesystem permissive=1 [ 116.158341][ T3573] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 116.257084][ T3573] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 116.356196][ T3573] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 116.451621][ T3573] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 118.383351][ T30] audit: type=1401 audit(1757123110.601:118): op=setxattr invalid_context="u:object_r:app_data_file:s0:c512,c768" [ 118.422758][ T3573] bridge_slave_1: left allmulticast mode [ 118.433329][ T3573] bridge_slave_1: left promiscuous mode [ 118.440664][ T3573] bridge0: port 2(bridge_slave_1) entered disabled state [ 118.460756][ T3573] bridge_slave_0: left allmulticast mode [ 118.471770][ T3573] bridge_slave_0: left promiscuous mode [ 118.480579][ T3573] bridge0: port 1(bridge_slave_0) entered disabled state [ 118.748121][ T3573] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 118.761431][ T3573] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 118.772596][ T3573] bond0 (unregistering): Released all slaves [ 118.881779][ T3573] hsr_slave_0: left promiscuous mode [ 118.890329][ T3573] hsr_slave_1: left promiscuous mode [ 118.907771][ T3573] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 118.915424][ T3573] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 118.923392][ T3573] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 118.931750][ T3573] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 118.950952][ T3573] veth1_macvtap: left promiscuous mode [ 118.956722][ T3573] veth0_macvtap: left promiscuous mode [ 118.962364][ T3573] veth1_vlan: left promiscuous mode [ 118.968951][ T3573] veth0_vlan: left promiscuous mode [ 119.350237][ T3573] team0 (unregistering): Port device team_slave_1 removed [ 119.381065][ T3573] team0 (unregistering): Port device team_slave_0 removed [ 119.620152][ T36] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 119.628638][ T36] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 119.694726][ T36] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 119.703461][ T36] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 119.984971][ T51] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 119.995220][ T51] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 120.003188][ T51] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 120.011245][ T51] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 120.020498][ T51] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 2025/09/06 01:45:15 executed programs: 0 [ 122.912632][ T5172] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 122.926179][ T5172] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 122.934923][ T5172] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 122.942828][ T5172] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 122.950616][ T5172] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 123.159740][ T6502] chnl_net:caif_netlink_parms(): no params data found [ 123.259099][ T6502] bridge0: port 1(bridge_slave_0) entered blocking state [ 123.266522][ T6502] bridge0: port 1(bridge_slave_0) entered disabled state [ 123.274108][ T6502] bridge_slave_0: entered allmulticast mode [ 123.281536][ T6502] bridge_slave_0: entered promiscuous mode [ 123.291835][ T6502] bridge0: port 2(bridge_slave_1) entered blocking state [ 123.299174][ T6502] bridge0: port 2(bridge_slave_1) entered disabled state [ 123.311582][ T6502] bridge_slave_1: entered allmulticast mode [ 123.319138][ T6502] bridge_slave_1: entered promiscuous mode [ 123.356742][ T6502] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 123.369564][ T6502] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 123.408121][ T6502] team0: Port device team_slave_0 added [ 123.416351][ T6502] team0: Port device team_slave_1 added [ 123.458434][ T6502] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 123.465565][ T6502] 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. [ 123.491884][ T6502] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 123.504909][ T6502] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 123.511862][ T6502] 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. [ 123.537868][ T6502] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 123.589174][ T6502] hsr_slave_0: entered promiscuous mode [ 123.596237][ T6502] hsr_slave_1: entered promiscuous mode [ 124.048196][ T6502] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 124.065093][ T6502] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 124.080333][ T6502] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 124.093376][ T6502] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 124.179397][ T6502] 8021q: adding VLAN 0 to HW filter on device bond0 [ 124.206129][ T6502] 8021q: adding VLAN 0 to HW filter on device team0 [ 124.222550][ T1340] bridge0: port 1(bridge_slave_0) entered blocking state [ 124.229722][ T1340] bridge0: port 1(bridge_slave_0) entered forwarding state [ 124.248702][ T3573] bridge0: port 2(bridge_slave_1) entered blocking state [ 124.255885][ T3573] bridge0: port 2(bridge_slave_1) entered forwarding state [ 124.480522][ T6502] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 124.532604][ T6502] veth0_vlan: entered promiscuous mode [ 124.548404][ T6502] veth1_vlan: entered promiscuous mode [ 124.580865][ T6502] veth0_macvtap: entered promiscuous mode [ 124.590898][ T6502] veth1_macvtap: entered promiscuous mode [ 124.614536][ T6502] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 124.630614][ T6502] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 124.647400][ T59] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 124.662131][ T3573] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 124.681016][ T3573] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 124.702431][ T3573] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 124.761445][ T59] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 124.772253][ T59] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 124.808252][ T3573] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 124.817331][ T3573] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 124.875660][ T30] audit: type=1400 audit(1757123117.101:119): avc: denied { create } for pid=6576 comm="syz.0.17" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1 [ 124.899960][ T30] audit: type=1400 audit(1757123117.101:120): avc: denied { ioctl } for pid=6576 comm="syz.0.17" path="socket:[10127]" dev="sockfs" ino=10127 ioctlcmd=0x8933 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1 [ 229.973622][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 229.980639][ C0] rcu: 1-...!: (1 GPs behind) idle=fc34/1/0x4000000000000000 softirq=26627/26628 fqs=0 [ 229.990855][ C0] rcu: (detected by 0, t=10502 jiffies, g=14953, q=204 ncpus=2) [ 229.998580][ C0] Sending NMI from CPU 0 to CPUs 1: [ 229.998616][ C1] NMI backtrace for cpu 1 [ 229.998644][ C1] CPU: 1 UID: 0 PID: 6578 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) [ 229.998666][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 229.998677][ C1] RIP: 0010:__lock_acquire+0x125/0x1ce0 [ 229.998714][ C1] Code: 9d f0 0a 00 00 49 89 c4 48 b8 29 5c 8f c2 f5 28 5c 8f 49 c1 fc 03 4c 89 e7 48 0f af f8 8b 44 24 08 4c 8d 14 80 48 89 7c 24 10 <49> c1 e2 03 85 c0 74 25 f6 84 24 c8 00 00 00 01 75 1b 49 8d 74 1a [ 229.998731][ C1] RSP: 0018:ffffc90000a08bf0 EFLAGS: 00000006 [ 229.998746][ C1] RAX: 0000000000000002 RBX: ffff88802c26d370 RCX: 0000000000000000 [ 229.998758][ C1] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 229.998768][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 229.998779][ C1] R10: 000000000000000a R11: 0000000000000001 R12: 0000000000000000 [ 229.998790][ C1] R13: ffff88802c26c880 R14: 0000000000000000 R15: ffffffff9b0fd7c8 [ 229.998802][ C1] FS: 00007f95a66536c0(0000) GS:ffff8881247b5000(0000) knlGS:0000000000000000 [ 229.998820][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 229.998832][ C1] CR2: 00007f95a6631f98 CR3: 00000000797b2000 CR4: 00000000003526f0 [ 229.998844][ C1] Call Trace: [ 229.998850][ C1] [ 229.998863][ C1] lock_acquire+0x179/0x350 [ 229.998895][ C1] ? debug_object_deactivate+0x135/0x3a0 [ 229.998916][ C1] ? do_raw_spin_unlock+0x172/0x230 [ 229.998937][ C1] _raw_spin_lock_irqsave+0x3a/0x60 [ 229.998958][ C1] ? debug_object_deactivate+0x135/0x3a0 [ 229.998975][ C1] debug_object_deactivate+0x135/0x3a0 [ 229.998992][ C1] ? __pfx_debug_object_activate+0x10/0x10 [ 229.999011][ C1] ? __pfx_debug_object_deactivate+0x10/0x10 [ 229.999031][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 229.999054][ C1] __hrtimer_run_queues+0x46f/0xad0 [ 229.999080][ C1] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 229.999101][ C1] ? read_tsc+0x9/0x20 [ 229.999128][ C1] hrtimer_interrupt+0x397/0x8e0 [ 229.999155][ C1] __sysvec_apic_timer_interrupt+0x10b/0x3f0 [ 229.999176][ C1] sysvec_apic_timer_interrupt+0x9f/0xc0 [ 229.999198][ C1] [ 229.999204][ C1] [ 229.999224][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 229.999244][ C1] RIP: 0010:lockdep_unregister_key+0xe9/0x140 [ 229.999270][ C1] Code: 48 89 ef e8 b9 e5 ff ff 48 83 2d 89 11 5f 14 01 89 c3 e8 da ee ff ff 9c 58 f6 c4 02 75 52 41 f7 c4 00 02 00 00 74 01 fb 84 db <75> 1b 5b 5d 41 5c e9 4c 76 0a 00 8b 05 4a 35 14 0f 31 db 85 c0 74 [ 229.999287][ C1] RSP: 0018:ffffc9000397f318 EFLAGS: 00000246 [ 229.999300][ C1] RAX: 0000000000000046 RBX: 0000000000000000 RCX: 0000000000000001 [ 229.999311][ C1] RDX: 0000000000000000 RSI: ffffffff8df45969 RDI: ffffffff8c162d80 [ 229.999323][ C1] RBP: ffffffff975b7a38 R08: 000000000002094e R09: ffffffff95fa8c7c [ 229.999335][ C1] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000246 [ 229.999346][ C1] R13: ffff88807b468000 R14: ffff88805134e000 R15: ffff88807b468000 [ 229.999366][ C1] __qdisc_destroy+0x11a/0x4d0 [ 229.999388][ C1] qdisc_put+0xab/0xe0 [ 229.999407][ C1] taprio_attach+0x1fc/0x370 [ 229.999436][ C1] ? __pfx_taprio_attach+0x10/0x10 [ 229.999463][ C1] qdisc_graft+0xe3f/0x17c0 [ 229.999492][ C1] ? __pfx_taprio_init+0x10/0x10 [ 229.999519][ C1] ? __pfx_qdisc_graft+0x10/0x10 [ 229.999547][ C1] ? rcu_is_watching+0x12/0xc0 [ 229.999569][ C1] ? qdisc_create+0x5b3/0xfc0 [ 229.999597][ C1] tc_modify_qdisc+0xf5c/0x2170 [ 229.999625][ C1] ? rcu_is_watching+0x12/0xc0 [ 229.999649][ C1] ? __pfx_tc_modify_qdisc+0x10/0x10 [ 229.999676][ C1] ? __lock_acquire+0x62e/0x1ce0 [ 229.999711][ C1] ? __pfx_tc_modify_qdisc+0x10/0x10 [ 229.999739][ C1] rtnetlink_rcv_msg+0x3c9/0xe90 [ 229.999765][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 229.999792][ C1] ? ref_tracker_free+0x37c/0x830 [ 229.999818][ C1] netlink_rcv_skb+0x155/0x420 [ 229.999842][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 229.999867][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 229.999895][ C1] ? netlink_deliver_tap+0x1ae/0xd30 [ 229.999919][ C1] netlink_unicast+0x5aa/0x870 [ 229.999944][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 229.999967][ C1] ? __pfx_netlink_autobind.isra.0+0x10/0x10 [ 229.999994][ C1] netlink_sendmsg+0x8d1/0xdd0 [ 230.000020][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 230.000048][ C1] ____sys_sendmsg+0xa98/0xc70 [ 230.000076][ C1] ? copy_msghdr_from_user+0x10a/0x160 [ 230.000098][ C1] ? __pfx_____sys_sendmsg+0x10/0x10 [ 230.000127][ C1] ? __pfx_futex_wake_mark+0x10/0x10 [ 230.000149][ C1] ___sys_sendmsg+0x134/0x1d0 [ 230.000172][ C1] ? __pfx____sys_sendmsg+0x10/0x10 [ 230.000208][ C1] __sys_sendmsg+0x16d/0x220 [ 230.000234][ C1] ? __pfx___sys_sendmsg+0x10/0x10 [ 230.000255][ C1] ? __x64_sys_futex+0x1e0/0x4c0 [ 230.000290][ C1] do_syscall_64+0xcd/0x4c0 [ 230.000315][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 230.000333][ C1] RIP: 0033:0x7f95a578ebe9 [ 230.000352][ C1] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 [ 230.000368][ C1] RSP: 002b:00007f95a6653038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 230.000385][ C1] RAX: ffffffffffffffda RBX: 00007f95a59b5fa0 RCX: 00007f95a578ebe9 [ 230.000397][ C1] RDX: 0000000000000000 RSI: 00002000000007c0 RDI: 0000000000000004 [ 230.000408][ C1] RBP: 00007f95a5811e19 R08: 0000000000000000 R09: 0000000000000000 [ 230.000419][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 230.000430][ C1] R13: 00007f95a59b6038 R14: 00007f95a59b5fa0 R15: 00007ffe77ad9918 [ 230.000448][ C1] [ 230.000606][ C0] rcu: rcu_preempt kthread starved for 10502 jiffies! g14953 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 230.564503][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 230.574465][ C0] rcu: RCU grace-period kthread stack dump: [ 230.580344][ C0] task:rcu_preempt state:R running task stack:27576 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00004000 [ 230.593921][ C0] Call Trace: [ 230.597196][ C0] [ 230.600121][ C0] __schedule+0x1190/0x5de0 [ 230.604631][ C0] ? __lock_acquire+0x62e/0x1ce0 [ 230.609579][ C0] ? __pfx___schedule+0x10/0x10 [ 230.614431][ C0] ? find_held_lock+0x2b/0x80 [ 230.619125][ C0] ? schedule+0x2d7/0x3a0 [ 230.623449][ C0] schedule+0xe7/0x3a0 [ 230.627514][ C0] schedule_timeout+0x123/0x290 [ 230.632368][ C0] ? __pfx_schedule_timeout+0x10/0x10 [ 230.637735][ C0] ? __pfx_process_timeout+0x10/0x10 [ 230.643033][ C0] ? _raw_spin_unlock_irqrestore+0x3b/0x80 [ 230.648856][ C0] ? prepare_to_swait_event+0xf5/0x480 [ 230.654424][ C0] rcu_gp_fqs_loop+0x1ea/0xb00 [ 230.659316][ C0] ? __pfx_rcu_gp_fqs_loop+0x10/0x10 [ 230.664600][ C0] ? lockdep_hardirqs_on+0x7c/0x110 [ 230.669798][ C0] ? __pfx_rcu_gp_init+0x10/0x10 [ 230.674731][ C0] ? rcu_gp_cleanup+0x7c1/0xd90 [ 230.679594][ C0] ? _raw_spin_unlock_irqrestore+0x52/0x80 [ 230.685502][ C0] rcu_gp_kthread+0x270/0x380 [ 230.690280][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 230.695471][ C0] ? rcu_is_watching+0x12/0xc0 [ 230.700237][ C0] ? lockdep_hardirqs_on+0x7c/0x110 [ 230.705445][ C0] ? __kthread_parkme+0x19e/0x250 [ 230.710477][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 230.715699][ C0] kthread+0x3c2/0x780 [ 230.720041][ C0] ? __pfx_kthread+0x10/0x10 [ 230.724625][ C0] ? rcu_is_watching+0x12/0xc0 [ 230.729384][ C0] ? __pfx_kthread+0x10/0x10 [ 230.733971][ C0] ret_from_fork+0x5d4/0x6f0 [ 230.738550][ C0] ? __pfx_kthread+0x10/0x10 [ 230.743138][ C0] ret_from_fork_asm+0x1a/0x30 [ 230.748030][ C0] [ 230.751050][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 230.757372][ C0] CPU: 0 UID: 0 PID: 6579 Comm: cmp Not tainted syzkaller #0 PREEMPT(full) [ 230.766104][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 230.776148][ C0] RIP: 0010:smp_call_function_many_cond+0xdfd/0x1600 [ 230.782925][ C0] Code: 57 48 8b 54 24 10 4c 89 74 24 10 49 89 d5 48 89 d5 48 89 54 24 18 49 c1 ed 03 83 e5 07 4d 01 e5 83 c5 03 e8 d5 ff 0b 00 f3 90 <41> 0f b6 45 00 40 38 c5 7c 08 84 c0 0f 85 e0 05 00 00 8b 43 08 31 [ 230.802533][ C0] RSP: 0018:ffffc900039cf930 EFLAGS: 00000293 [ 230.808630][ C0] RAX: 0000000000000000 RBX: ffff8880b853fe80 RCX: ffffffff81af8ea1 [ 230.816678][ C0] RDX: ffff88804ff0c880 RSI: ffffffff81af8e7b RDI: 0000000000000005 [ 230.824640][ C0] RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000 [ 230.832604][ C0] R10: 0000000000000001 R11: 0000000000000000 R12: dffffc0000000000 [ 230.840648][ C0] R13: ffffed10170a7fd1 R14: 0000000000000001 R15: 0000000000000001 [ 230.848609][ C0] FS: 0000000000000000(0000) GS:ffff8881246b5000(0000) knlGS:0000000000000000 [ 230.857614][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 230.864187][ C0] CR2: 00007f3e8eba4e9c CR3: 000000000e380000 CR4: 00000000003526f0 [ 230.872145][ C0] Call Trace: [ 230.875426][ C0] [ 230.878352][ C0] ? __pfx_flush_tlb_func+0x10/0x10 [ 230.883560][ C0] ? __pfx_smp_call_function_many_cond+0x10/0x10 [ 230.889899][ C0] ? __pfx_flush_tlb_func+0x10/0x10 [ 230.895097][ C0] on_each_cpu_cond_mask+0x40/0x90 [ 230.900382][ C0] flush_tlb_mm_range+0x4a0/0x17a0 [ 230.905499][ C0] ? __pfx_free_pgtables+0x10/0x10 [ 230.910607][ C0] ? __pfx_flush_tlb_mm_range+0x10/0x10 [ 230.916162][ C0] tlb_finish_mmu+0x3c9/0x7c0 [ 230.920847][ C0] exit_mmap+0x403/0xb90 [ 230.925089][ C0] ? __pfx_exit_mmap+0x10/0x10 [ 230.929946][ C0] ? __lock_acquire+0xb97/0x1ce0 [ 230.934906][ C0] __mmput+0x12a/0x410 [ 230.939147][ C0] mmput+0x62/0x70 [ 230.942870][ C0] do_exit+0x7c7/0x2bf0 [ 230.947041][ C0] ? do_raw_spin_lock+0x12c/0x2b0 [ 230.952055][ C0] ? __pfx_do_exit+0x10/0x10 [ 230.956650][ C0] ? rcu_is_watching+0x12/0xc0 [ 230.961498][ C0] do_group_exit+0xd3/0x2a0 [ 230.966003][ C0] __x64_sys_exit_group+0x3e/0x50 [ 230.971067][ C0] x64_sys_call+0x14fa/0x1720 [ 230.975738][ C0] do_syscall_64+0xcd/0x4c0 [ 230.980240][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 230.986121][ C0] RIP: 0033:0x7f3e8ed036c5 [ 230.990527][ C0] Code: Unable to access opcode bytes at 0x7f3e8ed0369b. [ 230.997524][ C0] RSP: 002b:00007ffdfbc7f318 EFLAGS: 00000206 ORIG_RAX: 00000000000000e7 [ 231.006016][ C0] RAX: ffffffffffffffda RBX: 00007f3e8ee04fe8 RCX: 00007f3e8ed036c5 [ 231.013976][ C0] RDX: 00000000000000e7 RSI: ffffffffffffff88 RDI: 0000000000000000 [ 231.021940][ C0] RBP: 0000000000000001 R08: 00007ffdfbc7f2a8 R09: 0000000000000000 [ 231.030089][ C0] R10: 00007ffdfbc7f140 R11: 0000000000000206 R12: 0000000000000000 [ 231.038047][ C0] R13: 0000000000000000 R14: 00007f3e8ee03680 R15: 00007f3e8ee05000 [ 231.046028][ C0]