Warning: Permanently added '10.128.1.94' (ED25519) to the list of known hosts. 2025/11/27 08:44:37 parsed 1 programs [ 260.125866][ T24] audit: type=1400 audit(1764233077.760:64): avc: denied { node_bind } for pid=275 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 260.147013][ T24] audit: type=1400 audit(1764233077.760:65): avc: denied { create } for pid=275 comm="syz-execprog" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=rawip_socket permissive=1 [ 260.167373][ T24] audit: type=1400 audit(1764233077.760:66): avc: denied { module_request } for pid=275 comm="syz-execprog" kmod="net-pf-2-proto-262-type-1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1 [ 261.058808][ T24] audit: type=1400 audit(1764233078.690:67): avc: denied { mounton } for pid=283 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2023 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 261.060584][ T283] cgroup: Unknown subsys name 'net' [ 261.081653][ T24] audit: type=1400 audit(1764233078.690:68): avc: denied { mount } for pid=283 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 261.108991][ T24] audit: type=1400 audit(1764233078.720:69): avc: denied { unmount } for pid=283 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 261.109298][ T283] cgroup: Unknown subsys name 'devices' [ 261.343048][ T283] cgroup: Unknown subsys name 'hugetlb' [ 261.348838][ T283] cgroup: Unknown subsys name 'rlimit' [ 261.558329][ T24] audit: type=1400 audit(1764233079.190:70): avc: denied { setattr } for pid=283 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=253 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 261.582260][ T24] audit: type=1400 audit(1764233079.190:71): avc: denied { create } for pid=283 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 Setting up swapspace version 1, size = 127995904 bytes [ 261.602926][ T24] audit: type=1400 audit(1764233079.190:72): avc: denied { write } for pid=283 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 261.615002][ T286] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 261.623645][ T24] audit: type=1400 audit(1764233079.190:73): avc: denied { read } for pid=283 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 261.682594][ T283] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 262.113296][ T288] request_module fs-gadgetfs succeeded, but still no fs? [ 262.124502][ T288] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 262.497447][ T316] bridge0: port 1(bridge_slave_0) entered blocking state [ 262.504691][ T316] bridge0: port 1(bridge_slave_0) entered disabled state [ 262.512680][ T316] device bridge_slave_0 entered promiscuous mode [ 262.519546][ T316] bridge0: port 2(bridge_slave_1) entered blocking state [ 262.526763][ T316] bridge0: port 2(bridge_slave_1) entered disabled state [ 262.534285][ T316] device bridge_slave_1 entered promiscuous mode [ 262.576506][ T316] bridge0: port 2(bridge_slave_1) entered blocking state [ 262.583691][ T316] bridge0: port 2(bridge_slave_1) entered forwarding state [ 262.590980][ T316] bridge0: port 1(bridge_slave_0) entered blocking state [ 262.598074][ T316] bridge0: port 1(bridge_slave_0) entered forwarding state [ 262.624014][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 262.631987][ T49] bridge0: port 1(bridge_slave_0) entered disabled state [ 262.639526][ T49] bridge0: port 2(bridge_slave_1) entered disabled state [ 262.650297][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 262.658471][ T49] bridge0: port 1(bridge_slave_0) entered blocking state [ 262.665546][ T49] bridge0: port 1(bridge_slave_0) entered forwarding state [ 262.674510][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 262.682941][ T49] bridge0: port 2(bridge_slave_1) entered blocking state [ 262.690083][ T49] bridge0: port 2(bridge_slave_1) entered forwarding state [ 262.706926][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 262.721372][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 262.733224][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 262.744849][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 262.753180][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 262.760785][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 262.769468][ T316] device veth0_vlan entered promiscuous mode [ 262.785034][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 262.794207][ T316] device veth1_macvtap entered promiscuous mode [ 262.804201][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 262.814592][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2025/11/27 08:44:41 executed programs: 0 [ 263.502076][ T363] bridge0: port 1(bridge_slave_0) entered blocking state [ 263.509261][ T363] bridge0: port 1(bridge_slave_0) entered disabled state [ 263.516836][ T363] device bridge_slave_0 entered promiscuous mode [ 263.523694][ T363] bridge0: port 2(bridge_slave_1) entered blocking state [ 263.530806][ T363] bridge0: port 2(bridge_slave_1) entered disabled state [ 263.538339][ T363] device bridge_slave_1 entered promiscuous mode [ 263.575735][ T363] bridge0: port 2(bridge_slave_1) entered blocking state [ 263.582907][ T363] bridge0: port 2(bridge_slave_1) entered forwarding state [ 263.590257][ T363] bridge0: port 1(bridge_slave_0) entered blocking state [ 263.597340][ T363] bridge0: port 1(bridge_slave_0) entered forwarding state [ 263.615491][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 263.623326][ T49] bridge0: port 1(bridge_slave_0) entered disabled state [ 263.630501][ T49] bridge0: port 2(bridge_slave_1) entered disabled state [ 263.639549][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 263.647801][ T49] bridge0: port 1(bridge_slave_0) entered blocking state [ 263.654852][ T49] bridge0: port 1(bridge_slave_0) entered forwarding state [ 263.663733][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 263.672094][ T49] bridge0: port 2(bridge_slave_1) entered blocking state [ 263.679354][ T49] bridge0: port 2(bridge_slave_1) entered forwarding state [ 263.691765][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 263.700836][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 263.714777][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 263.726396][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 263.735113][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 263.742802][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 263.751733][ T363] device veth0_vlan entered promiscuous mode [ 263.761450][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 263.770678][ T363] device veth1_macvtap entered promiscuous mode [ 263.780373][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 263.790075][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 264.673532][ T7] device bridge_slave_1 left promiscuous mode [ 264.679738][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 264.901319][ T7] device bridge_slave_0 left promiscuous mode [ 264.907490][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 265.151203][ T7] device veth1_macvtap left promiscuous mode [ 265.157262][ T7] device veth0_vlan left promiscuous mode [ 407.731070][ T26] INFO: task kworker/u4:0:7 blocked for more than 122 seconds. [ 407.738838][ T26] Not tainted syzkaller #0 [ 407.931063][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 407.939788][ T26] task:kworker/u4:0 state:D stack: 0 pid: 7 ppid: 2 flags:0x10004000 [ 408.411152][ T26] Workqueue: netns cleanup_net [ 408.415979][ T26] Call Trace: [ 408.419362][ T26] __schedule+0xb47/0x1310 [ 408.721070][ T26] ? release_firmware_map_entry+0x18d/0x18d [ 408.727110][ T26] ? kthread_data+0x50/0xc0 [ 409.001091][ T26] ? wq_worker_sleeping+0x60/0x200 [ 409.006272][ T26] schedule+0x13c/0x1d0 [ 409.010444][ T26] schedule_timeout+0xa6/0x2d0 [ 409.361113][ T26] ? console_conditional_schedule+0x10/0x10 [ 409.367150][ T26] ? __prepare_to_swait+0xa8/0x130 [ 409.661059][ T26] wait_for_common+0x284/0x430 [ 409.665963][ T26] ? __kasan_check_write+0x14/0x20 [ 409.911056][ T26] ? wait_for_completion+0x20/0x20 [ 409.916219][ T26] ? mutex_lock+0x8c/0xe0 [ 409.920594][ T26] ? flush_workqueue_prep_pwqs+0x43c/0x4a0 [ 410.311086][ T26] wait_for_completion+0x18/0x20 [ 410.316110][ T26] flush_workqueue+0x606/0x13a0 [ 410.581060][ T26] ? flush_work+0x20/0x20 [ 410.585443][ T26] ? rcu_work_rcufn+0x50/0x50 [ 410.590237][ T26] peer_remove_after_dead+0x98/0x1a0 [ 410.951096][ T26] wg_peer_remove_all+0x3e2/0x450 [ 410.956172][ T26] ? peer_remove_after_dead+0x1a0/0x1a0 [ 411.241066][ T26] wg_destruct+0x18e/0x300 [ 411.245627][ T26] ? wg_xmit+0xb10/0xb10 [ 411.249906][ T26] netdev_run_todo+0xaf9/0xd20 [ 411.581063][ T26] ? netdev_refcnt_read+0x1d0/0x1d0 [ 411.586317][ T26] ? unregister_netdevice_queue+0x1aa/0x360 [ 411.891071][ T26] ? list_netdevice+0x4c0/0x4c0 [ 411.896300][ T26] rtnl_unlock+0xe/0x10 [ 411.900495][ T26] default_device_exit_batch+0x335/0x390 [ 412.281083][ T26] ? default_device_exit+0x390/0x390 [ 412.286431][ T26] ? wait_woken+0x180/0x180 [ 412.290947][ T26] ? rtnl_unlock+0xe/0x10 [ 412.661078][ T26] ? default_device_exit+0x390/0x390 [ 412.666425][ T26] cleanup_net+0x5fb/0xb70 [ 412.670858][ T26] ? __kasan_check_write+0x14/0x20 [ 413.041080][ T26] ? ops_init+0x4a0/0x4a0 [ 413.045514][ T26] ? read_word_at_a_time+0x12/0x20 [ 413.050632][ T26] ? strscpy+0x9b/0x290 [ 413.391056][ T26] process_one_work+0x6e1/0xba0 [ 413.396050][ T26] worker_thread+0xa6a/0x13b0 [ 413.400742][ T26] kthread+0x346/0x3d0 [ 413.751051][ T26] ? worker_clr_flags+0x190/0x190 [ 413.756121][ T26] ? kthread_blkcg+0xd0/0xd0 [ 413.760754][ T26] ret_from_fork+0x1f/0x30 [ 414.141127][ T26] NMI backtrace for cpu 1 [ 414.145517][ T26] CPU: 1 PID: 26 Comm: khungtaskd Not tainted syzkaller #0 [ 414.152712][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 414.162952][ T26] Call Trace: [ 414.166382][ T26] __dump_stack+0x21/0x24 [ 414.170732][ T26] dump_stack_lvl+0x169/0x1d8 [ 414.175416][ T26] ? show_regs_print_info+0x18/0x18 [ 414.180680][ T26] ? sched_show_task+0x324/0x4a0 [ 414.185655][ T26] ? __rcu_read_unlock+0xa0/0xa0 [ 414.190762][ T26] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 414.196943][ T26] dump_stack+0x15/0x1c [ 414.201110][ T26] nmi_trigger_cpumask_backtrace+0x27f/0x2c0 [ 414.207095][ T26] arch_trigger_cpumask_backtrace+0x10/0x20 [ 414.213014][ T26] watchdog+0xe2e/0xf70 [ 414.217179][ T26] ? hungtask_pm_notify+0x50/0x50 [ 414.222213][ T26] ? __kasan_check_read+0x11/0x20 [ 414.227249][ T26] ? __kthread_parkme+0xb9/0x1c0 [ 414.232480][ T26] kthread+0x346/0x3d0 [ 414.236557][ T26] ? hungtask_pm_notify+0x50/0x50 [ 414.241590][ T26] ? kthread_blkcg+0xd0/0xd0 [ 414.246187][ T26] ret_from_fork+0x1f/0x30 [ 414.250789][ T26] Sending NMI from CPU 1 to CPUs 0: [ 414.256504][ C0] NMI backtrace for cpu 0 [ 414.256510][ C0] CPU: 0 PID: 367 Comm: syz.2.17 Not tainted syzkaller #0 [ 414.256516][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 414.256519][ C0] RIP: 0010:fpu__clear+0x1d8/0x2d0 [ 414.256530][ C0] Code: ae 2c 75 00 48 8b 1d 97 f1 7a 05 0f 1f 44 00 00 e8 0d 3e 3b 00 81 e3 ff 02 00 00 48 c7 c7 c0 47 a3 86 89 d8 31 d2 48 0f ae 2f <48> c7 c0 a8 46 a3 86 48 c1 e8 03 42 80 3c 38 00 74 0c 48 c7 c7 a8 [ 414.256534][ C0] RSP: 0018:ffffc90001177c98 EFLAGS: 00000246 [ 414.256543][ C0] RAX: 0000000000000007 RBX: 0000000000000007 RCX: ffff88810d2ca780 [ 414.256547][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff86a347c0 [ 414.256552][ C0] RBP: ffffc90001177cb8 R08: 0000000000000000 R09: fffffbfff0d8cdc6 [ 414.256557][ C0] R10: fffffbfff0d8cdc6 R11: 1ffffffff0d8cdc0 R12: 0000000000000000 [ 414.256562][ C0] R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 414.256567][ C0] FS: 0000555581086500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 414.256571][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 414.256576][ C0] CR2: 0000000000000000 CR3: 000000010f6c7000 CR4: 00000000003506b0 [ 414.256581][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 414.256586][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 414.256588][ C0] Call Trace: [ 414.256592][ C0] fpu__clear_user_states+0x1a/0x20 [ 414.256595][ C0] arch_do_signal_or_restart+0xcda/0x10f0 [ 414.256599][ C0] ? __ia32_sys_rt_sigreturn+0x6c0/0x6c0 [ 414.256602][ C0] ? __bpf_trace_sys_enter+0x62/0x70 [ 414.256606][ C0] exit_to_user_mode_loop+0xa2/0xe0 [ 414.256609][ C0] exit_to_user_mode_prepare+0x76/0xa0 [ 414.256613][ C0] syscall_exit_to_user_mode+0x1d/0x40 [ 414.256616][ C0] do_syscall_64+0x3d/0x40 [ 414.256620][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 414.256623][ C0] RIP: 0033:0x7f9f4f7a76e0 [ 414.256634][ C0] Code: 44 24 20 0f 29 44 24 30 0f 29 44 24 40 48 8b 44 24 08 ff d0 48 83 c4 50 31 c0 5b 5d 41 5c 41 5d 41 5e c3 0f 1f 80 00 00 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 c3 66 66 2e 0f 1f [ 414.256638][ C0] RSP: 002b:00007fff4cd845f8 EFLAGS: 00000246 [ 414.256645][ C0] RAX: 0000000000000000 RBX: 00007f9f4fb3ffa8 RCX: 00007f9f4f8e9749 [ 414.256649][ C0] RDX: 00007fff4cd84600 RSI: 00007fff4cd84730 RDI: 0000000000000011 [ 414.256654][ C0] RBP: 0000000000000000 R08: 0038b87ec20e86e2 R09: 000000074cd84e7f [ 414.256659][ C0] R10: 0000000000000005 R11: 0000000000000246 R12: 00007f9f4fb3ffac [ 414.256664][ C0] R13: 00007f9f4fb3ffa0 R14: 0000000000000095 R15: 0000000000000003 [ 437.821048][ T26] INFO: task kworker/u4:0:7 blocked for more than 152 seconds. [ 437.828820][ T26] Not tainted syzkaller #0 [ 438.041047][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 438.049940][ T26] task:kworker/u4:0 state:D stack: 0 pid: 7 ppid: 2 flags:0x10004000 [ 438.521061][ T26] Workqueue: netns cleanup_net [ 438.525877][ T26] Call Trace: [ 438.529266][ T26] __schedule+0xb47/0x1310 [ 438.841050][ T26] ? release_firmware_map_entry+0x18d/0x18d [ 438.847014][ T26] ? kthread_data+0x50/0xc0 [ 439.091071][ T26] ? wq_worker_sleeping+0x60/0x200 [ 439.096227][ T26] schedule+0x13c/0x1d0 [ 439.100393][ T26] schedule_timeout+0xa6/0x2d0 [ 439.471060][ T26] ? console_conditional_schedule+0x10/0x10 [ 439.477007][ T26] ? __prepare_to_swait+0xa8/0x130 [ 439.801057][ T26] wait_for_common+0x284/0x430 [ 439.805883][ T26] ? __kasan_check_write+0x14/0x20 [ 440.041050][ T26] ? wait_for_completion+0x20/0x20 [ 440.046219][ T26] ? mutex_lock+0x8c/0xe0 [ 440.050674][ T26] ? flush_workqueue_prep_pwqs+0x43c/0x4a0 [ 440.431073][ T26] wait_for_completion+0x18/0x20 [ 440.436065][ T26] flush_workqueue+0x606/0x13a0 [ 440.440944][ T26] ? flush_work+0x20/0x20 [ 440.811071][ T26] ? rcu_work_rcufn+0x50/0x50 [ 440.816110][ T26] peer_remove_after_dead+0x98/0x1a0 [ 441.071165][ T26] wg_peer_remove_all+0x3e2/0x450 [ 441.076263][ T26] ? peer_remove_after_dead+0x1a0/0x1a0 [ 441.371089][ T26] wg_destruct+0x18e/0x300 [ 441.375563][ T26] ? wg_xmit+0xb10/0xb10 [ 441.379818][ T26] netdev_run_todo+0xaf9/0xd20 [ 441.711056][ T26] ? netdev_refcnt_read+0x1d0/0x1d0 [ 441.716396][ T26] ? unregister_netdevice_queue+0x1aa/0x360 [ 442.031091][ T26] ? list_netdevice+0x4c0/0x4c0 [ 442.036005][ T26] rtnl_unlock+0xe/0x10 [ 442.040346][ T26] default_device_exit_batch+0x335/0x390 [ 442.431305][ T26] ? default_device_exit+0x390/0x390 [ 442.436764][ T26] ? wait_woken+0x180/0x180 [ 442.651067][ T26] ? rtnl_unlock+0xe/0x10 [ 442.655509][ T26] ? default_device_exit+0x390/0x390 [ 442.660816][ T26] cleanup_net+0x5fb/0xb70 [ 443.061059][ T26] ? __kasan_check_write+0x14/0x20 [ 443.066227][ T26] ? ops_init+0x4a0/0x4a0 [ 443.070656][ T26] ? read_word_at_a_time+0x12/0x20 [ 443.421078][ T26] ? strscpy+0x9b/0x290 [ 443.425293][ T26] process_one_work+0x6e1/0xba0 [ 443.430155][ T26] worker_thread+0xa6a/0x13b0 [ 443.771069][ T26] kthread+0x346/0x3d0 [ 443.775296][ T26] ? worker_clr_flags+0x190/0x190 [ 443.780335][ T26] ? kthread_blkcg+0xd0/0xd0 [ 444.161047][ T26] ret_from_fork+0x1f/0x30 [ 444.281064][ T26] NMI backtrace for cpu 1 [ 444.285444][ T26] CPU: 1 PID: 26 Comm: khungtaskd Not tainted syzkaller #0 [ 444.292832][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 444.303072][ T26] Call Trace: [ 444.306375][ T26] __dump_stack+0x21/0x24 [ 444.310713][ T26] dump_stack_lvl+0x169/0x1d8 [ 444.315485][ T26] ? show_regs_print_info+0x18/0x18 [ 444.320950][ T26] ? sched_show_task+0x324/0x4a0 [ 444.325913][ T26] ? __rcu_read_unlock+0xa0/0xa0 [ 444.330878][ T26] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 444.336961][ T26] dump_stack+0x15/0x1c [ 444.341127][ T26] nmi_trigger_cpumask_backtrace+0x27f/0x2c0 [ 444.347183][ T26] arch_trigger_cpumask_backtrace+0x10/0x20 [ 444.353093][ T26] watchdog+0xe2e/0xf70 [ 444.357263][ T26] ? hungtask_pm_notify+0x50/0x50 [ 444.362298][ T26] ? __kasan_check_read+0x11/0x20 [ 444.367330][ T26] ? __kthread_parkme+0xb9/0x1c0 [ 444.372283][ T26] kthread+0x346/0x3d0 [ 444.376447][ T26] ? hungtask_pm_notify+0x50/0x50 [ 444.381479][ T26] ? kthread_blkcg+0xd0/0xd0 [ 444.386075][ T26] ret_from_fork+0x1f/0x30 [ 444.390549][ T26] Sending NMI from CPU 1 to CPUs 0: [ 444.396094][ C0] NMI backtrace for cpu 0 [ 444.396101][ C0] CPU: 0 PID: 367 Comm: syz.2.17 Not tainted syzkaller #0 [ 444.396107][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 444.396111][ C0] RIP: 0010:bpf_send_signal_common+0x105/0x420 [ 444.396122][ C0] Code: 01 00 00 00 89 de e8 fa 68 f5 ff 83 fb 01 0f 84 39 02 00 00 65 8b 1d 86 2e 94 7e 89 de 81 e6 ff ff ff 7f 31 ff e8 db 68 f5 ff <81> e3 ff ff ff 7f 74 07 e8 1e 65 f5 ff eb 36 48 c7 44 24 40 00 00 [ 444.396126][ C0] RSP: 0018:ffffc90001177ce0 EFLAGS: 00000293 [ 444.396134][ C0] RAX: ffffffff816e3f15 RBX: 0000000080000001 RCX: 0000000000000000 [ 444.396139][ C0] RDX: ffff88810d2ca780 RSI: 0000000000000001 RDI: 0000000000000000 [ 444.396144][ C0] RBP: ffffc90001177d98 R08: 0000000000000000 R09: 0000000000000000 [ 444.396148][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88810d2cad0c [ 444.396153][ C0] R13: dffffc0000000000 R14: 1ffff9200022efa0 R15: ffff88810d2ca780 [ 444.396158][ C0] FS: 0000555581086500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 444.396163][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 444.396167][ C0] CR2: 0000000000000000 CR3: 000000010f6c7000 CR4: 00000000003506b0 [ 444.396172][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 444.396177][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 444.396179][ C0] Call Trace: [ 444.396183][ C0] ? bpf_do_trace_printk+0x240/0x240 [ 444.396186][ C0] bpf_send_signal+0x19/0x20 [ 444.396189][ C0] bpf_prog_7ba5217f62dcd359+0x38/0xcf4 [ 444.396193][ C0] bpf_trace_run2+0xb3/0x200 [ 444.396196][ C0] ? bpf_trace_run1+0x200/0x200 [ 444.396199][ C0] __bpf_trace_sys_enter+0x62/0x70 [ 444.396202][ C0] trace_sys_enter+0x40/0x50 [ 444.396206][ C0] syscall_trace_enter+0x108/0x170 [ 444.396209][ C0] syscall_enter_from_user_mode+0x20/0x30 [ 444.396212][ C0] do_syscall_64+0x13/0x40 [ 444.396216][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 444.396219][ C0] RIP: 0033:0x7f9f4f885829 [ 444.396230][ C0] Code: 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 90 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 c7 c0 0f 00 00 00 0f 05 <0f> 1f 80 00 00 00 00 48 81 ec 48 01 00 00 49 89 d0 64 48 8b 04 25 [ 444.396234][ C0] RSP: 002b:00007fff4cd84600 EFLAGS: 00000246 ORIG_RAX: 000000000000000f [ 444.396242][ C0] RAX: ffffffffffffffda RBX: 00007f9f4fb3ffa8 RCX: 00007f9f4f885829 [ 444.396247][ C0] RDX: 00007fff4cd84600 RSI: 00007fff4cd84730 RDI: 0000000000000011 [ 444.396252][ C0] RBP: 0000000000000000 R08: 0038b87ec20e86e2 R09: 000000074cd84e7f [ 444.396257][ C0] R10: 0000000000000005 R11: 0000000000000246 R12: 00007f9f4fb3ffac [ 444.396261][ C0] R13: 00007f9f4fb3ffa0 R14: 0000000000000095 R15: 0000000000000003 [ 467.891056][ T26] INFO: task kworker/u4:0:7 blocked for more than 183 seconds. [ 467.898650][ T26] Not tainted syzkaller #0 [ 468.061018][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 468.069818][ T26] task:kworker/u4:0 state:D stack: 0 pid: 7 ppid: 2 flags:0x10004000 [ 468.541023][ T26] Workqueue: netns cleanup_net [ 468.545853][ T26] Call Trace: [ 468.549242][ T26] __schedule+0xb47/0x1310 [ 468.871080][ T26] ? release_firmware_map_entry+0x18d/0x18d [ 468.877125][ T26] ? kthread_data+0x50/0xc0 [ 469.161053][ T26] ? wq_worker_sleeping+0x60/0x200 [ 469.166234][ T26] schedule+0x13c/0x1d0 [ 469.170403][ T26] schedule_timeout+0xa6/0x2d0 [ 469.511048][ T26] ? console_conditional_schedule+0x10/0x10 [ 469.517004][ T26] ? __prepare_to_swait+0xa8/0x130 [ 469.801055][ T26] wait_for_common+0x284/0x430 [ 469.805873][ T26] ? __kasan_check_write+0x14/0x20 [ 470.061041][ T26] ? wait_for_completion+0x20/0x20 [ 470.066222][ T26] ? mutex_lock+0x8c/0xe0 [ 470.070933][ T26] ? flush_workqueue_prep_pwqs+0x43c/0x4a0 [ 470.461033][ T26] wait_for_completion+0x18/0x20 [ 470.466112][ T26] flush_workqueue+0x606/0x13a0 [ 470.470973][ T26] ? flush_work+0x20/0x20 [ 470.851291][ T26] ? rcu_work_rcufn+0x50/0x50 [ 470.856202][ T26] peer_remove_after_dead+0x98/0x1a0 [ 471.111078][ T26] wg_peer_remove_all+0x3e2/0x450 [ 471.116442][ T26] ? peer_remove_after_dead+0x1a0/0x1a0 [ 471.401057][ T26] wg_destruct+0x18e/0x300 [ 471.405520][ T26] ? wg_xmit+0xb10/0xb10 [ 471.409846][ T26] netdev_run_todo+0xaf9/0xd20 [ 471.741081][ T26] ? netdev_refcnt_read+0x1d0/0x1d0 [ 471.746325][ T26] ? unregister_netdevice_queue+0x1aa/0x360 [ 472.061062][ T26] ? list_netdevice+0x4c0/0x4c0 [ 472.065966][ T26] rtnl_unlock+0xe/0x10 [ 472.070132][ T26] default_device_exit_batch+0x335/0x390 [ 472.461060][ T26] ? default_device_exit+0x390/0x390 [ 472.466424][ T26] ? wait_woken+0x180/0x180 [ 472.470949][ T26] ? rtnl_unlock+0xe/0x10 [ 472.811056][ T26] ? default_device_exit+0x390/0x390 [ 472.816394][ T26] cleanup_net+0x5fb/0xb70 [ 472.820862][ T26] ? __kasan_check_write+0x14/0x20 [ 473.201032][ T26] ? ops_init+0x4a0/0x4a0 [ 473.205415][ T26] ? read_word_at_a_time+0x12/0x20 [ 473.210552][ T26] ? strscpy+0x9b/0x290 [ 473.571069][ T26] process_one_work+0x6e1/0xba0 [ 473.576063][ T26] worker_thread+0xa6a/0x13b0 [ 473.580757][ T26] kthread+0x346/0x3d0 [ 473.911296][ T26] ? worker_clr_flags+0x190/0x190 [ 473.916374][ T26] ? kthread_blkcg+0xd0/0xd0 [ 474.191025][ T26] ret_from_fork+0x1f/0x30 [ 474.311098][ T26] NMI backtrace for cpu 1 [ 474.315476][ T26] CPU: 1 PID: 26 Comm: khungtaskd Not tainted syzkaller #0 [ 474.322672][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 474.332820][ T26] Call Trace: [ 474.336234][ T26] __dump_stack+0x21/0x24 [ 474.340585][ T26] dump_stack_lvl+0x169/0x1d8 [ 474.345358][ T26] ? show_regs_print_info+0x18/0x18 [ 474.350568][ T26] ? sched_show_task+0x324/0x4a0 [ 474.355511][ T26] ? __rcu_read_unlock+0xa0/0xa0 [ 474.360458][ T26] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 474.366549][ T26] dump_stack+0x15/0x1c [ 474.370718][ T26] nmi_trigger_cpumask_backtrace+0x27f/0x2c0 [ 474.376711][ T26] arch_trigger_cpumask_backtrace+0x10/0x20 [ 474.382629][ T26] watchdog+0xe2e/0xf70 [ 474.386798][ T26] ? hungtask_pm_notify+0x50/0x50 [ 474.391962][ T26] ? __kasan_check_read+0x11/0x20 [ 474.397119][ T26] ? __kthread_parkme+0xb9/0x1c0 [ 474.402066][ T26] kthread+0x346/0x3d0 [ 474.406148][ T26] ? hungtask_pm_notify+0x50/0x50 [ 474.411192][ T26] ? kthread_blkcg+0xd0/0xd0 [ 474.415786][ T26] ret_from_fork+0x1f/0x30 [ 474.420317][ T26] Sending NMI from CPU 1 to CPUs 0: [ 474.426543][ C0] NMI backtrace for cpu 0 [ 474.426549][ C0] CPU: 0 PID: 367 Comm: syz.2.17 Not tainted syzkaller #0 [ 474.426555][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 474.426559][ C0] RIP: 0010:__kernel_text_address+0x48/0x100 [ 474.426570][ C0] Code: c1 bb 01 00 00 00 84 c8 0f 85 a3 00 00 00 49 89 fe 48 c7 c0 c0 25 a3 86 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 <84> c0 0f 85 8a 00 00 00 83 3d 49 cb 61 05 01 77 18 49 81 fe 00 30 [ 474.426574][ C0] RSP: 0018:ffffc900000077d0 EFLAGS: 00000806 [ 474.426583][ C0] RAX: 0000000000000000 RBX: 0000000000000001 RCX: dffffc0000000000 [ 474.426588][ C0] RDX: ffffc90001177db0 RSI: 1ffff92000000f06 RDI: ffffffffa0028344 [ 474.426593][ C0] RBP: ffffc900000077f0 R08: ffffc900000078f0 R09: ffffc900000078e8 [ 474.426597][ C0] R10: 0000000000000015 R11: 1ffff92000000f05 R12: ffff88810d2ca780 [ 474.426602][ C0] R13: ffffc90000007c20 R14: ffffffffa0028344 R15: 1ffff92000000f0e [ 474.426607][ C0] FS: 0000555581086500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 474.426612][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 474.426617][ C0] CR2: 0000000000000000 CR3: 000000010f6c7000 CR4: 00000000003506b0 [ 474.426622][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 474.426626][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 474.426629][ C0] Call Trace: [ 474.426631][ C0] [ 474.426635][ C0] unwind_get_return_address+0x4d/0x90 [ 474.426638][ C0] ? stack_trace_save+0xe0/0xe0 [ 474.426641][ C0] arch_stack_walk+0xee/0x140 [ 474.426645][ C0] ? bpf_prog_7ba5217f62dcd359+0x38/0xcf4 [ 474.426648][ C0] stack_trace_save+0x98/0xe0 [ 474.426651][ C0] ? stack_trace_snprint+0xf0/0xf0 [ 474.426654][ C0] ? memset+0x35/0x40 [ 474.426658][ C0] __kasan_slab_alloc+0xbd/0xf0 [ 474.426661][ C0] ? __kasan_slab_alloc+0xbd/0xf0 [ 474.426663][ C0] ? slab_post_alloc_hook+0x5d/0x2f0 [ 474.426666][ C0] ? kmem_cache_alloc+0x165/0x2e0 [ 474.426669][ C0] ? __sigqueue_alloc+0x185/0x2d0 [ 474.426672][ C0] ? __send_signal+0x1f2/0xb80 [ 474.426674][ C0] ? send_signal+0x479/0x5b0 [ 474.426677][ C0] ? do_send_sig_info+0xd6/0x210 [ 474.426680][ C0] ? group_send_sig_info+0x111/0x2a0 [ 474.426683][ C0] ? do_bpf_send_signal+0x82/0x150 [ 474.426686][ C0] ? irq_work_run_list+0x179/0x260 [ 474.426688][ C0] ? irq_work_run+0x6a/0xf0 [ 474.426691][ C0] ? __sysvec_irq_work+0x66/0x1b0 [ 474.426694][ C0] ? asm_call_irq_on_stack+0xf/0x20 [ 474.426696][ C0] ? sysvec_irq_work+0x85/0xd0 [ 474.426699][ C0] ? asm_sysvec_irq_work+0x12/0x20 [ 474.426702][ C0] ? native_apic_msr_write+0x39/0x50 [ 474.426705][ C0] ? x2apic_send_IPI_self+0x5e/0x70 [ 474.426708][ C0] ? arch_irq_work_raise+0x86/0xd0 [ 474.426711][ C0] ? __irq_work_queue_local+0x115/0x190 [ 474.426714][ C0] ? irq_work_queue+0x9e/0x150 [ 474.426717][ C0] ? bpf_send_signal_common+0x2b2/0x420 [ 474.426719][ C0] ? bpf_send_signal+0x19/0x20 [ 474.426722][ C0] slab_post_alloc_hook+0x5d/0x2f0 [ 474.426725][ C0] ? __sigqueue_alloc+0x185/0x2d0 [ 474.426728][ C0] ? __sigqueue_alloc+0x185/0x2d0 [ 474.426730][ C0] kmem_cache_alloc+0x165/0x2e0 [ 474.426733][ C0] ? __sigqueue_alloc+0x185/0x2d0 [ 474.426736][ C0] __sigqueue_alloc+0x185/0x2d0 [ 474.426739][ C0] __send_signal+0x1f2/0xb80 [ 474.426741][ C0] send_signal+0x479/0x5b0 [ 474.426744][ C0] do_send_sig_info+0xd6/0x210 [ 474.426747][ C0] group_send_sig_info+0x111/0x2a0 [ 474.426750][ C0] ? __lock_task_sighand+0x100/0x100 [ 474.426753][ C0] do_bpf_send_signal+0x82/0x150 [ 474.426756][ C0] irq_work_run_list+0x179/0x260 [ 474.426758][ C0] ? irq_work_run+0xf0/0xf0 [ 474.426761][ C0] ? debug_smp_processor_id+0x17/0x20 [ 474.426764][ C0] ? irqtime_account_irq+0x165/0x1b0 [ 474.426767][ C0] ? __do_softirq+0x4c9/0x563 [ 474.426770][ C0] irq_work_run+0x6a/0xf0 [ 474.426772][ C0] __sysvec_irq_work+0x66/0x1b0 [ 474.426775][ C0] asm_call_irq_on_stack+0xf/0x20 [ 474.426777][ C0] [ 474.426780][ C0] sysvec_irq_work+0x85/0xd0 [ 474.426782][ C0] asm_sysvec_irq_work+0x12/0x20 [ 474.426786][ C0] RIP: 0010:native_apic_msr_write+0x39/0x50 [ 474.426795][ C0] Code: 74 05 83 ff 30 75 12 5d c3 81 ff d0 00 00 00 74 f6 81 ff e0 00 00 00 74 ee c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <0f> 1f 44 00 00 eb d6 89 f6 31 d2 e8 c7 d1 27 01 5d c3 0f 1f 44 00 [ 474.426798][ C0] RSP: 0018:ffffc90001177c20 EFLAGS: 00000246 [ 474.426804][ C0] RAX: 00000000000000f6 RBX: 00000000000000f6 RCX: 000000000000083f [ 474.426808][ C0] RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f [ 474.426812][ C0] RBP: ffffc90001177c20 R08: dffffc0000000000 R09: ffffed103ee0a5f7 [ 474.426817][ C0] R10: ffffed103ee0a5f7 R11: 1ffff1103ee0a5f6 R12: 0000000000000000 [ 474.426821][ C0] R13: dffffc0000000001 R14: ffffffff859c5998 R15: dffffc0000000000 [ 474.426823][ C0] x2apic_send_IPI_self+0x5e/0x70 [ 474.426826][ C0] arch_irq_work_raise+0x86/0xd0 [ 474.426829][ C0] __irq_work_queue_local+0x115/0x190 [ 474.426832][ C0] irq_work_queue+0x9e/0x150 [ 474.426835][ C0] bpf_send_signal_common+0x2b2/0x420 [ 474.426838][ C0] ? bpf_do_trace_printk+0x240/0x240 [ 474.426840][ C0] bpf_send_signal+0x19/0x20 [ 474.426843][ C0] bpf_prog_7ba5217f62dcd359+0x38/0xcf4 [ 474.426846][ C0] bpf_trace_run2+0xb3/0x200 [ 474.426849][ C0] ? bpf_trace_run1+0x200/0x200 [ 474.426852][ C0] __bpf_trace_sys_enter+0x62/0x70 [ 474.426854][ C0] trace_sys_enter+0x40/0x50 [ 474.426857][ C0] syscall_trace_enter+0x108/0x170 [ 474.426860][ C0] syscall_enter_from_user_mode+0x20/0x30 [ 474.426863][ C0] do_syscall_64+0x13/0x40 [ 474.426866][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 474.426868][ C0] RIP: 0033:0x7f9f4f885829 [ 474.426878][ C0] Code: 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 90 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 c7 c0 0f 00 00 00 0f 05 <0f> 1f 80 00 00 00 00 48 81 ec 48 01 00 00 49 89 d0 64 48 8b 04 25 [ 474.426881][ C0] RSP: 002b:00007fff4cd84600 EFLAGS: 00000246 ORIG_RAX: 000000000000000f [ 474.426888][ C0] RAX: ffffffffffffffda RBX: 00007f9f4fb3ffa8 RCX: 00007f9f4f885829 [ 474.426892][ C0] RDX: 00007fff4cd84600 RSI: 00007fff4cd84730 RDI: 0000000000000011 [ 474.426896][ C0] RBP: 0000000000000000 R08: 0038b87ec20e86e2 R09: 000000074cd84e7f [ 474.426900][ C0] R10: 0000000000000005 R11: 0000000000000246 R12: 00007f9f4fb3ffac [ 474.426905][ C0] R13: 00007f9f4fb3ffa0 R14: 0000000000000095 R15: 0000000000000003 [ 498.611048][ T26] INFO: task kworker/u4:0:7 blocked for more than 213 seconds. [ 498.618813][ T26] Not tainted syzkaller #0 [ 498.791009][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 498.799735][ T26] task:kworker/u4:0 state:D stack: 0 pid: 7 ppid: 2 flags:0x10004000 [ 499.271015][ T26] Workqueue: netns cleanup_net [ 499.275828][ T26] Call Trace: [ 499.279133][ T26] __schedule+0xb47/0x1310 [ 499.601064][ T26] ? release_firmware_map_entry+0x18d/0x18d [ 499.607011][ T26] ? kthread_data+0x50/0xc0 [ 499.861031][ T26] ? wq_worker_sleeping+0x60/0x200 [ 499.866300][ T26] schedule+0x13c/0x1d0 [ 499.870476][ T26] schedule_timeout+0xa6/0x2d0 [ 500.231024][ T26] ? console_conditional_schedule+0x10/0x10 [ 500.236973][ T26] ? __prepare_to_swait+0xa8/0x130 [ 500.541049][ T26] wait_for_common+0x284/0x430 [ 500.545965][ T26] ? __kasan_check_write+0x14/0x20 [ 500.781060][ T26] ? wait_for_completion+0x20/0x20 [ 500.786231][ T26] ? mutex_lock+0x8c/0xe0 [ 500.790580][ T26] ? flush_workqueue_prep_pwqs+0x43c/0x4a0 [ 501.201045][ T26] wait_for_completion+0x18/0x20 [ 501.206187][ T26] flush_workqueue+0x606/0x13a0 [ 501.451045][ T26] ? flush_work+0x20/0x20 [ 501.455512][ T26] ? rcu_work_rcufn+0x50/0x50 [ 501.460208][ T26] peer_remove_after_dead+0x98/0x1a0 [ 501.841042][ T26] wg_peer_remove_all+0x3e2/0x450 [ 501.846209][ T26] ? peer_remove_after_dead+0x1a0/0x1a0 [ 502.131022][ T26] wg_destruct+0x18e/0x300 [ 502.135497][ T26] ? wg_xmit+0xb10/0xb10 [ 502.139754][ T26] netdev_run_todo+0xaf9/0xd20 [ 502.471068][ T26] ? netdev_refcnt_read+0x1d0/0x1d0 [ 502.476316][ T26] ? unregister_netdevice_queue+0x1aa/0x360 [ 502.761022][ T26] ? list_netdevice+0x4c0/0x4c0 [ 502.765924][ T26] rtnl_unlock+0xe/0x10 [ 502.770096][ T26] default_device_exit_batch+0x335/0x390 [ 503.182249][ T26] ? default_device_exit+0x390/0x390 [ 503.187587][ T26] ? wait_woken+0x180/0x180 [ 503.401035][ T26] ? rtnl_unlock+0xe/0x10 [ 503.405421][ T26] ? default_device_exit+0x390/0x390 [ 503.410758][ T26] cleanup_net+0x5fb/0xb70 [ 503.771020][ T26] ? __kasan_check_write+0x14/0x20 [ 503.776189][ T26] ? ops_init+0x4a0/0x4a0 [ 503.780536][ T26] ? read_word_at_a_time+0x12/0x20 [ 504.161019][ T26] ? strscpy+0x9b/0x290 [ 504.165327][ T26] process_one_work+0x6e1/0xba0 [ 504.170276][ T26] worker_thread+0xa6a/0x13b0 [ 504.501073][ T26] kthread+0x346/0x3d0 [ 504.505284][ T26] ? worker_clr_flags+0x190/0x190 [ 504.510323][ T26] ? kthread_blkcg+0xd0/0xd0 [ 504.871020][ T26] ret_from_fork+0x1f/0x30 [ 505.001096][ T26] NMI backtrace for cpu 1 [ 505.005564][ T26] CPU: 1 PID: 26 Comm: khungtaskd Not tainted syzkaller #0 [ 505.012762][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 505.023179][ T26] Call Trace: [ 505.026489][ T26] __dump_stack+0x21/0x24 [ 505.030830][ T26] dump_stack_lvl+0x169/0x1d8 [ 505.035521][ T26] ? show_regs_print_info+0x18/0x18 [ 505.040731][ T26] ? sched_show_task+0x324/0x4a0 [ 505.045675][ T26] ? __rcu_read_unlock+0xa0/0xa0 [ 505.050633][ T26] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 505.056721][ T26] dump_stack+0x15/0x1c [ 505.060885][ T26] nmi_trigger_cpumask_backtrace+0x27f/0x2c0 [ 505.067085][ T26] arch_trigger_cpumask_backtrace+0x10/0x20 [ 505.072985][ T26] watchdog+0xe2e/0xf70 [ 505.077154][ T26] ? hungtask_pm_notify+0x50/0x50 [ 505.082186][ T26] ? __kasan_check_read+0x11/0x20 [ 505.087220][ T26] ? __kthread_parkme+0xb9/0x1c0 [ 505.092173][ T26] kthread+0x346/0x3d0 [ 505.096351][ T26] ? hungtask_pm_notify+0x50/0x50 [ 505.101384][ T26] ? kthread_blkcg+0xd0/0xd0 [ 505.106064][ T26] ret_from_fork+0x1f/0x30 [ 505.110525][ T26] Sending NMI from CPU 1 to CPUs 0: [ 505.116037][ C0] NMI backtrace for cpu 0 [ 505.116042][ C0] CPU: 0 PID: 367 Comm: syz.2.17 Not tainted syzkaller #0 [ 505.116048][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 505.116053][ C0] RIP: 0010:check_preemption_disabled+0x0/0x100 [ 505.116063][ C0] Code: 05 ad 01 57 02 5d c3 00 00 cc 55 48 89 e5 48 c7 c7 40 2c 20 85 48 c7 c6 80 2c 20 85 e8 09 00 00 00 5d c3 0f 1f 80 00 00 00 00 <55> 48 89 e5 41 57 41 56 41 54 53 48 83 ec 10 65 48 8b 04 25 28 00 [ 505.116068][ C0] RSP: 0018:ffffc90001177c60 EFLAGS: 00000293 [ 505.116076][ C0] RAX: ffffffff81701fd2 RBX: ffff8881f7052d88 RCX: 0000000000000000 [ 505.116081][ C0] RDX: ffff88810d2ca780 RSI: ffffffff85202c80 RDI: ffffffff85202c40 [ 505.116086][ C0] RBP: ffffc90001177c68 R08: dffffc0000000000 R09: ffffed103ee0a5b3 [ 505.116091][ C0] R10: ffffed103ee0a5b3 R11: 1ffff1103ee0a5b2 R12: 0000000000000023 [ 505.116096][ C0] R13: dffffc0000000001 R14: ffff8881f7052d90 R15: dffffc0000000000 [ 505.116101][ C0] FS: 0000555581086500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 505.116105][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 505.116110][ C0] CR2: 0000000000000000 CR3: 000000010f6c7000 CR4: 00000000003506b0 [ 505.116115][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 505.116119][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 505.116122][ C0] Call Trace: [ 505.116125][ C0] ? debug_smp_processor_id+0x17/0x20 [ 505.116129][ C0] __irq_work_queue_local+0x57/0x190 [ 505.116132][ C0] irq_work_queue+0x9e/0x150 [ 505.116135][ C0] bpf_send_signal_common+0x2b2/0x420 [ 505.116139][ C0] ? bpf_do_trace_printk+0x240/0x240 [ 505.116142][ C0] bpf_send_signal+0x19/0x20 [ 505.116145][ C0] bpf_prog_7ba5217f62dcd359+0x38/0xcf4 [ 505.116148][ C0] bpf_trace_run2+0xb3/0x200 [ 505.116152][ C0] ? bpf_trace_run1+0x200/0x200 [ 505.116155][ C0] __bpf_trace_sys_enter+0x62/0x70 [ 505.116158][ C0] trace_sys_enter+0x40/0x50 [ 505.116162][ C0] syscall_trace_enter+0x108/0x170 [ 505.116165][ C0] syscall_enter_from_user_mode+0x20/0x30 [ 505.116168][ C0] do_syscall_64+0x13/0x40 [ 505.116172][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 505.116175][ C0] RIP: 0033:0x7f9f4f885829 [ 505.116186][ C0] Code: 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 90 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 c7 c0 0f 00 00 00 0f 05 <0f> 1f 80 00 00 00 00 48 81 ec 48 01 00 00 49 89 d0 64 48 8b 04 25 [ 505.116189][ C0] RSP: 002b:00007fff4cd84600 EFLAGS: 00000246 ORIG_RAX: 000000000000000f [ 505.116198][ C0] RAX: ffffffffffffffda RBX: 00007f9f4fb3ffa8 RCX: 00007f9f4f885829 [ 505.116203][ C0] RDX: 00007fff4cd84600 RSI: 00007fff4cd84730 RDI: 0000000000000011 [ 505.116208][ C0] RBP: 0000000000000000 R08: 0038b87ec20e86e2 R09: 000000074cd84e7f [ 505.116212][ C0] R10: 0000000000000005 R11: 0000000000000246 R12: 00007f9f4fb3ffac [ 505.116217][ C0] R13: 00007f9f4fb3ffa0 R14: 0000000000000095 R15: 0000000000000003 [ 528.691037][ T26] INFO: task kworker/u4:0:7 blocked for more than 243 seconds. [ 528.698637][ T26] Not tainted syzkaller #0 [ 528.900985][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 528.909713][ T26] task:kworker/u4:0 state:D stack: 0 pid: 7 ppid: 2 flags:0x10004000 [ 529.381004][ T26] Workqueue: netns cleanup_net [ 529.385842][ T26] Call Trace: [ 529.389145][ T26] __schedule+0xb47/0x1310 [ 529.701012][ T26] ? release_firmware_map_entry+0x18d/0x18d [ 529.706965][ T26] ? kthread_data+0x50/0xc0 [ 529.961036][ T26] ? wq_worker_sleeping+0x60/0x200 [ 529.966205][ T26] schedule+0x13c/0x1d0 [ 529.970370][ T26] schedule_timeout+0xa6/0x2d0 [ 530.341009][ T26] ? console_conditional_schedule+0x10/0x10 [ 530.346966][ T26] ? __prepare_to_swait+0xa8/0x130 [ 530.651032][ T26] wait_for_common+0x284/0x430 [ 530.655865][ T26] ? __kasan_check_write+0x14/0x20 [ 530.881007][ T26] ? wait_for_completion+0x20/0x20 [ 530.886171][ T26] ? mutex_lock+0x8c/0xe0 [ 530.890515][ T26] ? flush_workqueue_prep_pwqs+0x43c/0x4a0 [ 531.291033][ T26] wait_for_completion+0x18/0x20 [ 531.296034][ T26] flush_workqueue+0x606/0x13a0 [ 531.300907][ T26] ? flush_work+0x20/0x20 [ 531.651007][ T26] ? rcu_work_rcufn+0x50/0x50 [ 531.655743][ T26] peer_remove_after_dead+0x98/0x1a0 [ 531.921048][ T26] wg_peer_remove_all+0x3e2/0x450 [ 531.926115][ T26] ? peer_remove_after_dead+0x1a0/0x1a0 [ 532.201286][ T26] wg_destruct+0x18e/0x300 [ 532.681057][ T26] ? wg_xmit+0xb10/0xb10 [ 532.686928][ T26] netdev_run_todo+0xaf9/0xd20 [ 533.171036][ T26] ? netdev_refcnt_read+0x1d0/0x1d0 [ 533.176303][ T26] ? unregister_netdevice_queue+0x1aa/0x360 [ 533.461001][ T26] ? list_netdevice+0x4c0/0x4c0 [ 533.465910][ T26] rtnl_unlock+0xe/0x10 [ 533.470084][ T26] default_device_exit_batch+0x335/0x390 [ 533.821011][ T26] ? default_device_exit+0x390/0x390 [ 533.826362][ T26] ? wait_woken+0x180/0x180 [ 534.091031][ T26] ? rtnl_unlock+0xe/0x10 [ 534.095416][ T26] ? default_device_exit+0x390/0x390 [ 534.100823][ T26] cleanup_net+0x5fb/0xb70 [ 534.461004][ T26] ? __kasan_check_write+0x14/0x20 [ 534.466264][ T26] ? ops_init+0x4a0/0x4a0 [ 534.470624][ T26] ? read_word_at_a_time+0x12/0x20 [ 534.841025][ T26] ? strscpy+0x9b/0x290 [ 534.845242][ T26] process_one_work+0x6e1/0xba0 [ 534.850107][ T26] worker_thread+0xa6a/0x13b0 [ 535.221035][ T26] kthread+0x346/0x3d0 [ 535.225194][ T26] ? worker_clr_flags+0x190/0x190 [ 535.230231][ T26] ? kthread_blkcg+0xd0/0xd0 [ 535.561036][ T26] ret_from_fork+0x1f/0x30 [ 535.721056][ T26] NMI backtrace for cpu 1 [ 535.725454][ T26] CPU: 1 PID: 26 Comm: khungtaskd Not tainted syzkaller #0 [ 535.732660][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 535.742909][ T26] Call Trace: [ 535.746216][ T26] __dump_stack+0x21/0x24 [ 535.750564][ T26] dump_stack_lvl+0x169/0x1d8 [ 535.755263][ T26] ? show_regs_print_info+0x18/0x18 [ 535.760471][ T26] ? sched_show_task+0x324/0x4a0 [ 535.765415][ T26] ? __rcu_read_unlock+0xa0/0xa0 [ 535.770566][ T26] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 535.776643][ T26] dump_stack+0x15/0x1c [ 535.780893][ T26] nmi_trigger_cpumask_backtrace+0x27f/0x2c0 [ 535.786889][ T26] arch_trigger_cpumask_backtrace+0x10/0x20 [ 535.792792][ T26] watchdog+0xe2e/0xf70 [ 535.796971][ T26] ? hungtask_pm_notify+0x50/0x50 [ 535.802018][ T26] ? __kasan_check_read+0x11/0x20 [ 535.807051][ T26] ? __kthread_parkme+0xb9/0x1c0 [ 535.812010][ T26] kthread+0x346/0x3d0 [ 535.816092][ T26] ? hungtask_pm_notify+0x50/0x50 [ 535.821139][ T26] ? kthread_blkcg+0xd0/0xd0 [ 535.825747][ T26] ret_from_fork+0x1f/0x30 [ 535.830378][ T26] Sending NMI from CPU 1 to CPUs 0: [ 535.836566][ C0] NMI backtrace for cpu 0 [ 535.836573][ C0] CPU: 0 PID: 367 Comm: syz.2.17 Not tainted syzkaller #0 [ 535.836579][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 535.836583][ C0] RIP: 0010:_raw_spin_trylock+0x8a/0x140 [ 535.836594][ C0] Code: 00 00 e8 39 ca cb fc 48 89 df be 04 00 00 00 e8 dc 4d 25 fd 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 8a 00 00 00 8b 03 <89> 44 24 20 85 c0 75 33 4c 8d 74 24 20 48 89 df be 04 00 00 00 e8 [ 535.836598][ C0] RSP: 0018:ffffc90000007700 EFLAGS: 00000046 [ 535.836607][ C0] RAX: 0000000000000000 RBX: ffff8881f705ab48 RCX: ffffffff847846d4 [ 535.836612][ C0] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8881f705ab48 [ 535.836617][ C0] RBP: ffffc90000007790 R08: dffffc0000000000 R09: ffffed103ee0b56a [ 535.836622][ C0] R10: ffffed103ee0b56a R11: 1ffff1103ee0b569 R12: 1ffff92000000ee0 [ 535.836627][ C0] R13: 0000000000000000 R14: 0000000000000046 R15: dffffc0000000000 [ 535.836633][ C0] FS: 0000555581086500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 535.836637][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 535.836642][ C0] CR2: 0000000000000000 CR3: 000000010f6c7000 CR4: 00000000003506b0 [ 535.836647][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 535.836652][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 535.836654][ C0] Call Trace: [ 535.836657][ C0] [ 535.836660][ C0] ? __lock_text_start+0x8/0x8 [ 535.836663][ C0] ? __cpuset_node_allowed+0x41/0x330 [ 535.836667][ C0] get_page_from_freelist+0x7ca/0x23d0 [ 535.836671][ C0] ? unwind_get_return_address+0x4d/0x90 [ 535.836674][ C0] ? arch_stack_walk+0xee/0x140 [ 535.836677][ C0] ? stack_trace_save+0x98/0xe0 [ 535.836681][ C0] ? __alloc_pages_nodemask+0x5f0/0x5f0 [ 535.836684][ C0] __alloc_pages_nodemask+0x268/0x5f0 [ 535.836688][ C0] ? do_send_sig_info+0xd6/0x210 [ 535.836691][ C0] ? group_send_sig_info+0x111/0x2a0 [ 535.836695][ C0] ? __sysvec_irq_work+0x66/0x1b0 [ 535.836698][ C0] ? gfp_pfmemalloc_allowed+0x130/0x130 [ 535.836701][ C0] ? arch_irq_work_raise+0x86/0xd0 [ 535.836705][ C0] ? irq_work_queue+0x9e/0x150 [ 535.836708][ C0] ? bpf_send_signal_common+0x1f0/0x420 [ 535.836711][ C0] ? bpf_send_signal+0x19/0x20 [ 535.836715][ C0] ? syscall_enter_from_user_mode+0x20/0x30 [ 535.836718][ C0] ? do_syscall_64+0x13/0x40 [ 535.836722][ C0] ? entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 535.836725][ C0] new_slab+0x84/0x3f0 [ 535.836728][ C0] ___slab_alloc+0x2a6/0x450 [ 535.836731][ C0] ? __sigqueue_alloc+0x185/0x2d0 [ 535.836734][ C0] __slab_alloc+0x63/0xa0 [ 535.836738][ C0] ? __sigqueue_alloc+0x185/0x2d0 [ 535.836741][ C0] ? __sigqueue_alloc+0x185/0x2d0 [ 535.836744][ C0] kmem_cache_alloc+0x1af/0x2e0 [ 535.836746][ C0] ? __sigqueue_alloc+0x185/0x2d0 [ 535.836749][ C0] __sigqueue_alloc+0x185/0x2d0 [ 535.836752][ C0] __send_signal+0x1f2/0xb80 [ 535.836754][ C0] send_signal+0x479/0x5b0 [ 535.836757][ C0] do_send_sig_info+0xd6/0x210 [ 535.836760][ C0] group_send_sig_info+0x111/0x2a0 [ 535.836763][ C0] ? __lock_task_sighand+0x100/0x100 [ 535.836766][ C0] do_bpf_send_signal+0x82/0x150 [ 535.836768][ C0] irq_work_run_list+0x179/0x260 [ 535.836771][ C0] ? irq_work_run+0xf0/0xf0 [ 535.836774][ C0] irq_work_run+0x6a/0xf0 [ 535.836777][ C0] __sysvec_irq_work+0x66/0x1b0 [ 535.836780][ C0] asm_call_irq_on_stack+0xf/0x20 [ 535.836781][ C0] [ 535.836784][ C0] sysvec_irq_work+0x85/0xd0 [ 535.836787][ C0] asm_sysvec_irq_work+0x12/0x20 [ 535.836790][ C0] RIP: 0010:native_apic_msr_write+0x39/0x50 [ 535.836799][ C0] Code: 74 05 83 ff 30 75 12 5d c3 81 ff d0 00 00 00 74 f6 81 ff e0 00 00 00 74 ee c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <0f> 1f 44 00 00 eb d6 89 f6 31 d2 e8 c7 d1 27 01 5d c3 0f 1f 44 00 [ 535.836803][ C0] RSP: 0018:ffffc90001177c20 EFLAGS: 00000246 [ 535.836809][ C0] RAX: 00000000000000f6 RBX: 00000000000000f6 RCX: 000000000000083f [ 535.836813][ C0] RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f [ 535.836817][ C0] RBP: ffffc90001177c20 R08: dffffc0000000000 R09: ffffed103ee0a5f7 [ 535.836821][ C0] R10: ffffed103ee0a5f7 R11: 1ffff1103ee0a5f6 R12: 0000000000000000 [ 535.836825][ C0] R13: dffffc0000000001 R14: ffffffff859c5998 R15: dffffc0000000000 [ 535.836828][ C0] x2apic_send_IPI_self+0x5e/0x70 [ 535.836831][ C0] arch_irq_work_raise+0x86/0xd0 [ 535.836834][ C0] __irq_work_queue_local+0x115/0x190 [ 535.836837][ C0] irq_work_queue+0x9e/0x150 [ 535.836840][ C0] bpf_send_signal_common+0x2b2/0x420 [ 535.836843][ C0] ? bpf_do_trace_printk+0x240/0x240 [ 535.836845][ C0] bpf_send_signal+0x19/0x20 [ 535.836848][ C0] bpf_prog_7ba5217f62dcd359+0x38/0xcf4 [ 535.836851][ C0] bpf_trace_run2+0xb3/0x200 [ 535.836854][ C0] ? bpf_trace_run1+0x200/0x200 [ 535.836857][ C0] __bpf_trace_sys_enter+0x62/0x70 [ 535.836859][ C0] trace_sys_enter+0x40/0x50 [ 535.836863][ C0] syscall_trace_enter+0x108/0x170 [ 535.836866][ C0] syscall_enter_from_user_mode+0x20/0x30 [ 535.836868][ C0] do_syscall_64+0x13/0x40 [ 535.836871][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 535.836874][ C0] RIP: 0033:0x7f9f4f885829 [ 535.836884][ C0] Code: 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 90 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 c7 c0 0f 00 00 00 0f 05 <0f> 1f 80 00 00 00 00 48 81 ec 48 01 00 00 49 89 d0 64 48 8b 04 25 [ 535.836887][ C0] RSP: 002b:00007fff4cd84600 EFLAGS: 00000246 ORIG_RAX: 000000000000000f [ 535.836894][ C0] RAX: ffffffffffffffda RBX: 00007f9f4fb3ffa8 RCX: 00007f9f4f885829 [ 535.836898][ C0] RDX: 00007fff4cd84600 RSI: 00007fff4cd84730 RDI: 0000000000000011 [ 535.836903][ C0] RBP: 0000000000000000 R08: 0038b87ec20e86e2 R09: 000000074cd84e7f [ 535.836907][ C0] R10: 0000000000000005 R11: 0000000000000246 R12: 00007f9f4fb3ffac [ 535.836911][ C0] R13: 00007f9f4fb3ffa0 R14: 0000000000000095 R15: 0000000000000003 [ 559.411003][ T26] INFO: task kworker/u4:0:7 blocked for more than 274 seconds. [ 559.418592][ T26] Not tainted syzkaller #0 [ 559.590980][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 559.599705][ T26] task:kworker/u4:0 state:D stack: 0 pid: 7 ppid: 2 flags:0x10004000 [ 560.050986][ T26] Workqueue: netns cleanup_net [ 560.055898][ T26] Call Trace: [ 560.059206][ T26] __schedule+0xb47/0x1310 [ 560.382192][ T26] ? release_firmware_map_entry+0x18d/0x18d [ 560.388152][ T26] ? kthread_data+0x50/0xc0 [ 560.661007][ T26] ? wq_worker_sleeping+0x60/0x200 [ 560.666191][ T26] schedule+0x13c/0x1d0 [ 560.670365][ T26] schedule_timeout+0xa6/0x2d0 [ 561.031023][ T26] ? console_conditional_schedule+0x10/0x10 [ 561.036974][ T26] ? __prepare_to_swait+0xa8/0x130 [ 561.311011][ T26] wait_for_common+0x284/0x430 [ 561.315834][ T26] ? __kasan_check_write+0x14/0x20 [ 561.600993][ T26] ? wait_for_completion+0x20/0x20 [ 561.606173][ T26] ? mutex_lock+0x8c/0xe0 [ 561.610517][ T26] ? flush_workqueue_prep_pwqs+0x43c/0x4a0 [ 561.981016][ T26] wait_for_completion+0x18/0x20 [ 561.986099][ T26] flush_workqueue+0x606/0x13a0 [ 562.240997][ T26] ? flush_work+0x20/0x20 [ 562.245447][ T26] ? rcu_work_rcufn+0x50/0x50 [ 562.250137][ T26] peer_remove_after_dead+0x98/0x1a0 [ 562.650995][ T26] wg_peer_remove_all+0x3e2/0x450 [ 562.656091][ T26] ? peer_remove_after_dead+0x1a0/0x1a0 [ 562.910996][ T26] wg_destruct+0x18e/0x300 [ 562.915478][ T26] ? wg_xmit+0xb10/0xb10 [ 562.919742][ T26] netdev_run_todo+0xaf9/0xd20 [ 563.281025][ T26] ? netdev_refcnt_read+0x1d0/0x1d0 [ 563.286276][ T26] ? unregister_netdevice_queue+0x1aa/0x360 [ 563.601015][ T26] ? list_netdevice+0x4c0/0x4c0 [ 563.605939][ T26] rtnl_unlock+0xe/0x10 [ 563.610112][ T26] default_device_exit_batch+0x335/0x390 [ 564.021006][ T26] ? default_device_exit+0x390/0x390 [ 564.026349][ T26] ? wait_woken+0x180/0x180 [ 564.281030][ T26] ? rtnl_unlock+0xe/0x10 [ 564.285410][ T26] ? default_device_exit+0x390/0x390 [ 564.290705][ T26] cleanup_net+0x5fb/0xb70 [ 564.691027][ T26] ? __kasan_check_write+0x14/0x20 [ 564.696195][ T26] ? ops_init+0x4a0/0x4a0 [ 564.700535][ T26] ? read_word_at_a_time+0x12/0x20 [ 565.100997][ T26] ? strscpy+0x9b/0x290 [ 565.105210][ T26] process_one_work+0x6e1/0xba0 [ 565.110090][ T26] worker_thread+0xa6a/0x13b0 [ 565.491029][ T26] kthread+0x346/0x3d0 [ 565.495246][ T26] ? worker_clr_flags+0x190/0x190 [ 565.500281][ T26] ? kthread_blkcg+0xd0/0xd0 [ 565.871024][ T26] ret_from_fork+0x1f/0x30 [ 565.991014][ T26] NMI backtrace for cpu 1 [ 565.995397][ T26] CPU: 1 PID: 26 Comm: khungtaskd Not tainted syzkaller #0 [ 566.002729][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 566.012800][ T26] Call Trace: [ 566.016235][ T26] __dump_stack+0x21/0x24 [ 566.020592][ T26] dump_stack_lvl+0x169/0x1d8 [ 566.025287][ T26] ? show_regs_print_info+0x18/0x18 [ 566.030605][ T26] ? sched_show_task+0x324/0x4a0 [ 566.035601][ T26] ? __rcu_read_unlock+0xa0/0xa0 [ 566.040556][ T26] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 566.046811][ T26] dump_stack+0x15/0x1c [ 566.050989][ T26] nmi_trigger_cpumask_backtrace+0x27f/0x2c0 [ 566.057148][ T26] arch_trigger_cpumask_backtrace+0x10/0x20 [ 566.063059][ T26] watchdog+0xe2e/0xf70 [ 566.067228][ T26] ? hungtask_pm_notify+0x50/0x50 [ 566.072264][ T26] ? __kasan_check_read+0x11/0x20 [ 566.077293][ T26] ? __kthread_parkme+0xb9/0x1c0 [ 566.082237][ T26] kthread+0x346/0x3d0 [ 566.086315][ T26] ? hungtask_pm_notify+0x50/0x50 [ 566.091346][ T26] ? kthread_blkcg+0xd0/0xd0 [ 566.096028][ T26] ret_from_fork+0x1f/0x30 [ 566.100516][ T26] Sending NMI from CPU 1 to CPUs 0: [ 566.106099][ C0] NMI backtrace for cpu 0 [ 566.106104][ C0] CPU: 0 PID: 367 Comm: syz.2.17 Not tainted syzkaller #0 [ 566.106110][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 566.106114][ C0] RIP: 0010:stack_trace_save+0x1/0xe0 [ 566.106125][ C0] Code: 77 8a 44 89 e8 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b 45 31 ed eb e7 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 55 <48> 89 e5 41 56 53 48 83 e4 e0 48 81 ec 80 00 00 00 65 48 8b 04 25 [ 566.106129][ C0] RSP: 0018:ffffc900011777b0 EFLAGS: 00000046 [ 566.106137][ C0] RAX: ffffc900011777c0 RBX: 0000000000000800 RCX: 0000000000000000 [ 566.106142][ C0] RDX: 0000000000000000 RSI: 0000000000000040 RDI: ffffc900011777c0 [ 566.106147][ C0] RBP: ffffc900011779e8 R08: dffffc0000000000 R09: ffffc900011777c0 [ 566.106152][ C0] R10: 0000000000000000 R11: 0000000000000040 R12: 0000000000000001 [ 566.106157][ C0] R13: 0000000000000000 R14: ffff88811625f778 R15: ffffc900011777c0 [ 566.106162][ C0] FS: 0000555581086500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 566.106166][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 566.106177][ C0] CR2: 0000000000000000 CR3: 000000010f6c7000 CR4: 00000000003506b0 [ 566.106182][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 566.106186][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 566.106189][ C0] Call Trace: [ 566.106192][ C0] ? kasan_set_track+0x4a/0x70 [ 566.106195][ C0] ? kmem_cache_free+0x100/0x2d0 [ 566.106198][ C0] kasan_set_free_info+0x23/0x40 [ 566.106202][ C0] ____kasan_slab_free+0x125/0x160 [ 566.106205][ C0] __kasan_slab_free+0x11/0x20 [ 566.106209][ C0] slab_free_freelist_hook+0xc5/0x190 [ 566.106212][ C0] ? __dequeue_signal+0x530/0x620 [ 566.106215][ C0] kmem_cache_free+0x100/0x2d0 [ 566.106218][ C0] __dequeue_signal+0x530/0x620 [ 566.106221][ C0] dequeue_signal+0xa0/0x440 [ 566.106224][ C0] get_signal+0x772/0x12e0 [ 566.106228][ C0] arch_do_signal_or_restart+0xbf/0x10f0 [ 566.106231][ C0] ? __ia32_sys_rt_sigreturn+0x5e7/0x6c0 [ 566.106235][ C0] ? bpf_do_trace_printk+0x240/0x240 [ 566.106238][ C0] ? KSTK_ESP+0x60/0x60 [ 566.106242][ C0] ? __ia32_sys_rt_sigreturn+0x6c0/0x6c0 [ 566.106245][ C0] ? __bpf_trace_sys_enter+0x62/0x70 [ 566.106248][ C0] exit_to_user_mode_loop+0xa2/0xe0 [ 566.106252][ C0] exit_to_user_mode_prepare+0x76/0xa0 [ 566.106255][ C0] syscall_exit_to_user_mode+0x1d/0x40 [ 566.106258][ C0] do_syscall_64+0x3d/0x40 [ 566.106262][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 566.106265][ C0] RIP: 0033:0x7f9f4f8e9749 [ 566.106275][ C0] 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 [ 566.106279][ C0] RSP: 002b:00007fff4cd84b88 EFLAGS: 00000246 [ 566.106286][ C0] RAX: 0000000000000000 RBX: 00007f9f4fb3ffa8 RCX: 00007f9f4f8e9749 [ 566.106291][ C0] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f9f4fb3ffac [ 566.106296][ C0] RBP: 0000000000000000 R08: 0038b87ec20e86e2 R09: 000000074cd84e7f [ 566.106301][ C0] R10: 0000000000000005 R11: 0000000000000246 R12: 00007f9f4fb3ffac [ 566.106306][ C0] R13: 00007f9f4fb3ffa0 R14: 0000000000000095 R15: 0000000000000003