Warning: Permanently added '10.128.0.10' (ED25519) to the list of known hosts.
2026/04/20 05:59:20 parsed 1 programs
[ 435.614878][ T28] audit: type=1400 audit(1776664760.598:64): avc: denied { node_bind } for pid=283 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1
[ 435.638042][ T28] audit: type=1400 audit(1776664760.598:65): avc: denied { module_request } for pid=283 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
[ 436.437997][ T28] audit: type=1400 audit(1776664761.418:66): avc: denied { mounton } for pid=289 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
[ 436.439229][ T289] cgroup: Unknown subsys name 'net'
[ 436.461540][ T28] audit: type=1400 audit(1776664761.428:67): avc: denied { mount } for pid=289 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
[ 436.489925][ T28] audit: type=1400 audit(1776664761.458:68): avc: denied { unmount } for pid=289 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1
[ 436.490143][ T289] cgroup: Unknown subsys name 'devices'
[ 436.630521][ T289] cgroup: Unknown subsys name 'hugetlb'
[ 436.636506][ T289] cgroup: Unknown subsys name 'rlimit'
[ 436.745101][ T28] audit: type=1400 audit(1776664761.728:69): avc: denied { setattr } for pid=289 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=258 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1
[ 436.769282][ T28] audit: type=1400 audit(1776664761.728:70): avc: denied { create } for pid=289 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 436.774796][ T293] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped).
[ 436.791064][ T28] audit: type=1400 audit(1776664761.728:71): avc: denied { write } for pid=289 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 436.821887][ T28] audit: type=1400 audit(1776664761.728:72): avc: denied { read } for pid=289 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
[ 436.843522][ T28] audit: type=1400 audit(1776664761.728:73): avc: denied { mounton } for pid=289 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1
[ 436.858863][ T289] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 437.619451][ T295] request_module fs-gadgetfs succeeded, but still no fs?
[ 437.709454][ T295] syz-executor (295) used greatest stack depth: 22112 bytes left
[ 438.073484][ T326] bridge0: port 1(bridge_slave_0) entered blocking state
[ 438.081437][ T326] bridge0: port 1(bridge_slave_0) entered disabled state
[ 438.089032][ T326] device bridge_slave_0 entered promiscuous mode
[ 438.096214][ T326] bridge0: port 2(bridge_slave_1) entered blocking state
[ 438.103728][ T326] bridge0: port 2(bridge_slave_1) entered disabled state
[ 438.112509][ T326] device bridge_slave_1 entered promiscuous mode
[ 438.163449][ T326] bridge0: port 2(bridge_slave_1) entered blocking state
[ 438.170929][ T326] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 438.178644][ T326] bridge0: port 1(bridge_slave_0) entered blocking state
[ 438.185947][ T326] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 438.205197][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 438.213260][ T43] bridge0: port 1(bridge_slave_0) entered disabled state
[ 438.220896][ T43] bridge0: port 2(bridge_slave_1) entered disabled state
[ 438.232129][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 438.242955][ T43] bridge0: port 1(bridge_slave_0) entered blocking state
[ 438.250043][ T43] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 438.259522][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 438.268422][ T43] bridge0: port 2(bridge_slave_1) entered blocking state
[ 438.275652][ T43] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 438.290951][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 438.301171][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 438.315084][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 438.327178][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 438.335843][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 438.346834][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 438.355398][ T326] device veth0_vlan entered promiscuous mode
[ 438.370200][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 438.379841][ T326] device veth1_macvtap entered promiscuous mode
[ 438.390497][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 438.401126][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 438.434820][ T326] syz-executor (326) used greatest stack depth: 21600 bytes left
2026/04/20 05:59:23 executed programs: 0
[ 438.996520][ T359] bridge0: port 1(bridge_slave_0) entered blocking state
[ 439.004930][ T359] bridge0: port 1(bridge_slave_0) entered disabled state
[ 439.012936][ T359] device bridge_slave_0 entered promiscuous mode
[ 439.025055][ T359] bridge0: port 2(bridge_slave_1) entered blocking state
[ 439.032577][ T359] bridge0: port 2(bridge_slave_1) entered disabled state
[ 439.040233][ T359] device bridge_slave_1 entered promiscuous mode
[ 439.088889][ T359] bridge0: port 2(bridge_slave_1) entered blocking state
[ 439.095980][ T359] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 439.103659][ T359] bridge0: port 1(bridge_slave_0) entered blocking state
[ 439.110714][ T359] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 439.138607][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 439.146476][ T10] bridge0: port 1(bridge_slave_0) entered disabled state
[ 439.154078][ T10] bridge0: port 2(bridge_slave_1) entered disabled state
[ 439.164263][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 439.172969][ T10] bridge0: port 1(bridge_slave_0) entered blocking state
[ 439.180308][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 439.189786][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 439.198464][ T10] bridge0: port 2(bridge_slave_1) entered blocking state
[ 439.205770][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 439.228080][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 439.237501][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 439.254393][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 439.266370][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 439.274933][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 439.282893][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 439.293035][ T359] device veth0_vlan entered promiscuous mode
[ 439.304943][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 439.316421][ T359] device veth1_macvtap entered promiscuous mode
[ 439.325957][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 439.336428][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 439.587927][ C0] hrtimer: interrupt took 25935 ns
[ 440.160587][ T8] device bridge_slave_1 left promiscuous mode
[ 440.167070][ T8] bridge0: port 2(bridge_slave_1) entered disabled state
[ 440.178384][ T8] device bridge_slave_0 left promiscuous mode
[ 440.185729][ T8] bridge0: port 1(bridge_slave_0) entered disabled state
[ 440.197213][ T8] device veth1_macvtap left promiscuous mode
[ 440.203331][ T8] device veth0_vlan left promiscuous mode
[ 443.446444][ T28] kauditd_printk_skb: 41 callbacks suppressed
[ 443.446459][ T28] audit: type=1400 audit(1776664768.428:115): avc: denied { cpu } for pid=365 comm="syz.2.18" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=perf_event permissive=1
[ 457.490324][ T367] bridge0: port 1(bridge_slave_0) entered blocking state
[ 457.497664][ T367] bridge0: port 1(bridge_slave_0) entered disabled state
[ 457.505497][ T367] device bridge_slave_0 entered promiscuous mode
[ 457.513405][ T367] bridge0: port 2(bridge_slave_1) entered blocking state
[ 457.520753][ T367] bridge0: port 2(bridge_slave_1) entered disabled state
[ 457.528362][ T367] device bridge_slave_1 entered promiscuous mode
[ 457.594923][ T367] bridge0: port 2(bridge_slave_1) entered blocking state
[ 457.602137][ T367] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 457.609623][ T367] bridge0: port 1(bridge_slave_0) entered blocking state
[ 457.616748][ T367] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 478.807944][ T16] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2117 jiffies s: 1149 root: 0x1/.
[ 478.819859][ T16] rcu: blocking rcu_node structures (internal RCU debug):
[ 478.827238][ T16] Sending NMI from CPU 1 to CPUs 0:
[ 478.832470][ C0] NMI backtrace for cpu 0
[ 478.832481][ C0] CPU: 0 PID: 365 Comm: syz.2.18 Not tainted syzkaller #0
[ 478.832497][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 478.832505][ C0] RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x1/0x80
[ 478.832532][ C0] Code: 10 48 89 74 11 18 48 89 44 11 20 5d c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 b8 80 f8 fd 6f 55 <48> 89 e5 48 8b 45 08 65 48 8b 0d f0 f9 90 7e 65 8b 15 f1 f9 90 7e
[ 478.832543][ C0] RSP: 0000:ffffc90000006710 EFLAGS: 00000046
[ 478.832557][ C0] RAX: 1ffff11022aa130c RBX: 0000000000040125 RCX: dffffc0000000000
[ 478.832567][ C0] RDX: 0000000000010100 RSI: 0000000000000100 RDI: 0000000000000000
[ 478.832577][ C0] RBP: ffffc90000006770 R08: ffff88811685e547 R09: 1ffff11022d0bca8
[ 478.832587][ C0] R10: dffffc0000000000 R11: ffffed1022d0bca9 R12: 0000000000000001
[ 478.832596][ C0] R13: ffff888115509770 R14: ffff8881f6e34700 R15: ffffc90000006800
[ 478.832607][ C0] FS: 0000555586a17500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[ 478.832620][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 478.832630][ C0] CR2: 00000000000008a7 CR3: 000000010ef85000 CR4: 00000000003506b0
[ 478.832645][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 478.832654][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 478.832663][ C0] Call Trace:
[ 478.832667][ C0]
[ 478.832672][ C0] ? perf_swevent_event+0xa4/0x530
[ 478.832693][ C0] perf_tp_event+0x75b/0xa20
[ 478.832711][ C0] ? __cfi_perf_tp_event+0x10/0x10
[ 478.832733][ C0] ? __perf_event_account_interrupt+0x1a4/0x2c0
[ 478.832751][ C0] ? hrtimer_forward+0x18f/0x2a0
[ 478.832771][ C0] ? perf_swevent_hrtimer+0x4a5/0x5b0
[ 478.832789][ C0] ? __cfi_raise_softirq+0x10/0x10
[ 478.832805][ C0] perf_trace_run_bpf_submit+0xf3/0x1c0
[ 478.832825][ C0] perf_trace_signal_generate+0x41b/0x5d0
[ 478.832842][ C0] ? __cfi_perf_trace_signal_generate+0x10/0x10
[ 478.832860][ C0] __send_signal_locked+0xb1f/0xb70
[ 478.832876][ C0] ? _raw_spin_lock_irqsave+0xc2/0x130
[ 478.832890][ C0] ? __cfi__raw_spin_lock_irqsave+0x10/0x10
[ 478.832905][ C0] send_signal_locked+0x422/0x580
[ 478.832923][ C0] do_send_sig_info+0xd6/0x210
[ 478.832939][ C0] group_send_sig_info+0x118/0x2e0
[ 478.832957][ C0] ? __cfi_group_send_sig_info+0x10/0x10
[ 478.832974][ C0] ? tick_program_event+0xa3/0x120
[ 478.832992][ C0] do_bpf_send_signal+0x82/0x150
[ 478.833013][ C0] irq_work_run_list+0x197/0x2b0
[ 478.833031][ C0] ? irq_work_run+0xf0/0xf0
[ 478.833048][ C0] irq_work_run+0x6a/0xf0
[ 478.833072][ C0] __sysvec_irq_work+0x75/0x1c0
[ 478.833092][ C0] sysvec_irq_work+0x50/0xc0
[ 478.833108][ C0] asm_sysvec_irq_work+0x1b/0x20
[ 478.833124][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x5c/0x60
[ 478.833143][ C0] Code: 48 0b 00 00 83 fa 02 75 21 48 8b 91 50 0b 00 00 48 8b 32 48 8d 7e 01 8b 89 4c 0b 00 00 48 39 cf 73 08 48 89 3a 48 89 44 f2 08 <5d> c3 66 90 90 90 90 90 90 90 90 90 90 90 90 b8 e2 33 28 be 55 48
[ 478.833154][ C0] RSP: 0000:ffffc90000006f98 EFLAGS: 00000246
[ 478.833165][ C0] RAX: ffffffff81b6e548 RBX: ffffffff87bba4f8 RCX: ffff88811685e540
[ 478.833175][ C0] RDX: 0000000000000100 RSI: 00000000000000aa RDI: 00000000000000aa
[ 478.833184][ C0] RBP: ffffc90000006f98 R08: ffffffff87bcb69f R09: 1ffffffff0f796d3
[ 478.833194][ C0] R10: dffffc0000000000 R11: fffffbfff0f796d4 R12: 1ffffffff0f774a5
[ 478.833204][ C0] R13: ffff8881f7176f11 R14: 00000000000000aa R15: ffff8881f7177000
[ 478.833215][ C0] ? kfence_guarded_free+0x3a8/0x7b0
[ 478.833232][ C0] kfence_guarded_free+0x3a8/0x7b0
[ 478.833248][ C0] __kfence_free+0x115/0x180
[ 478.833263][ C0] __slab_free+0x45/0x280
[ 478.833280][ C0] ? slab_free_freelist_hook+0x5b/0x190
[ 478.833301][ C0] ? kfree_skbmem+0x10c/0x180
[ 478.833320][ C0] kmem_cache_free+0x23a/0x300
[ 478.833338][ C0] kfree_skbmem+0x10c/0x180
[ 478.833355][ C0] ? vti6_tnl_xmit+0xfee/0x18f0
[ 478.833368][ C0] kfree_skb_reason+0xdc/0x230
[ 478.833386][ C0] vti6_tnl_xmit+0xfee/0x18f0
[ 478.833401][ C0] ? __cfi_vti6_tnl_xmit+0x10/0x10
[ 478.833416][ C0] ? vti6_tnl_xmit+0xd/0x18f0
[ 478.833429][ C0] dev_hard_start_xmit+0x20b/0x750
[ 478.833447][ C0] __dev_queue_xmit+0x195d/0x3470
[ 478.833466][ C0] ? __dev_queue_xmit+0x258/0x3470
[ 478.833483][ C0] ? __cfi___dev_queue_xmit+0x10/0x10
[ 478.833499][ C0] ? irqtime_account_irq+0xc4/0x240
[ 478.833519][ C0] ? __irq_exit_rcu+0x5e/0xf0
[ 478.833533][ C0] ? irqentry_exit+0x37/0x40
[ 478.833550][ C0] ? sysvec_irq_work+0x61/0xc0
[ 478.833565][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 478.833582][ C0] ? neigh_connected_output+0x220/0x500
[ 478.833598][ C0] ? __sanitizer_cov_trace_pc+0x1f/0x60
[ 478.833617][ C0] neigh_connected_output+0x469/0x500
[ 478.833634][ C0] ip6_finish_output2+0x1606/0x18a0
[ 478.833653][ C0] ? __cfi_ip6_finish_output2+0x10/0x10
[ 478.833668][ C0] ? sysvec_irq_work+0x61/0xc0
[ 478.833683][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 478.833699][ C0] ? __cfi_ip6_mtu+0x10/0x10
[ 478.833719][ C0] ? ip6_finish_output+0x3f1/0xbb0
[ 478.833733][ C0] ip6_finish_output+0x5f9/0xbb0
[ 478.833748][ C0] ip6_output+0x1fa/0x410
[ 478.833761][ C0] ? __cfi_ip6_output+0x10/0x10
[ 478.833774][ C0] ? __cfi_ip6_finish_output+0x10/0x10
[ 478.833787][ C0] ? __cfi_ip6_output+0x10/0x10
[ 478.833800][ C0] ndisc_send_skb+0x7dc/0xcc0
[ 478.833820][ C0] ? __cfi_ndisc_send_skb+0x10/0x10
[ 478.833837][ C0] ? __cfi_dst_output+0x10/0x10
[ 478.833853][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 478.833871][ C0] ? memset+0x35/0x40
[ 478.833884][ C0] ? __ndisc_fill_addr_option+0xd7/0x130
[ 478.833901][ C0] ndisc_send_rs+0x670/0x870
[ 478.833919][ C0] addrconf_rs_timer+0x2cf/0x610
[ 478.833939][ C0] ? __irq_exit_rcu+0x5e/0xf0
[ 478.833953][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10
[ 478.833974][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10
[ 478.833993][ C0] call_timer_fn+0x46/0x2a0
[ 478.834010][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10
[ 478.834029][ C0] __run_timers+0x65b/0x9f0
[ 478.834048][ C0] ? calc_index+0x200/0x200
[ 478.834072][ C0] ? run_timer_softirq+0xe/0xf0
[ 478.834090][ C0] run_timer_softirq+0x6a/0xf0
[ 478.834106][ C0] handle_softirqs+0x1d7/0x600
[ 478.834121][ C0] ? irqtime_account_irq+0xc4/0x240
[ 478.834140][ C0] __irq_exit_rcu+0x52/0xf0
[ 478.834154][ C0] irq_exit_rcu+0x9/0x10
[ 478.834167][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0
[ 478.834184][ C0]
[ 478.834188][ C0]
[ 478.834193][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 478.834209][ C0] RIP: 0010:preempt_schedule_irq+0xa5/0x120
[ 478.834225][ C0] Code: 44 24 20 00 02 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 91 a2 4c fc fb bf 01 00 00 00 f6 e4 ff ff fa bf 01 00 00 00 e8 3b a4 4c fc 65 48 8b 1d 43 6b
[ 478.834235][ C0] RSP: 0000:ffffc90000197d60 EFLAGS: 00000246
[ 478.834246][ C0] RAX: 1ffff11022d0be01 RBX: ffffc90000197e28 RCX: ffffffff87b7a100
[ 478.834256][ C0] RDX: 1ffffffff0f6e400 RSI: 0000000000000000 RDI: 0000000000000001
[ 478.834265][ C0] RBP: ffffc90000197dd8 R08: ffffffff87b72008 R09: ffffffff87b72018
[ 478.834275][ C0] R10: ffffffff87b72003 R11: 1ffffffff0f6e400 R12: 0000000000000000
[ 478.834285][ C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000032fac
[ 478.834297][ C0] ? __cfi_preempt_schedule_irq+0x10/0x10
[ 478.834312][ C0] ? __cfi_sched_clock_cpu+0x10/0x10
[ 478.834328][ C0] raw_irqentry_exit_cond_resched+0x29/0x30
[ 478.834344][ C0] irqentry_exit+0x37/0x40
[ 478.834360][ C0] sysvec_apic_timer_interrupt+0x64/0xc0
[ 478.834377][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 478.834394][ C0] RIP: 0010:exit_to_user_mode_loop+0x4a/0xb0
[ 478.834409][ C0] Code: 00 e8 ca 8a 5a 00 e8 b5 27 f8 00 fa e8 ff a2 9a 03 65 48 8b 05 47 58 a2 7e 4c 8b 30 41 f7 c6 0e 30 02 00 74 5b fb 41 f6 c6 08 <74> 05 e8 df e6 9f 03 41 f7 c6 00 10 00 00 74 08 48 89 df e8 6e 95
[ 478.834420][ C0] RSP: 0000:ffffc90000197ed0 EFLAGS: 00000202
[ 478.834430][ C0] RAX: 0000000000000000 RBX: ffffc90000197f58 RCX: 934667fe02ca9000
[ 478.834440][ C0] RDX: 1ffffffff0f6e400 RSI: 0000000000000008 RDI: ffffc90000197f58
[ 478.834449][ C0] RBP: ffffc90000197ee0 R08: ffffffff87b72008 R09: ffffffff87b72018
[ 478.834459][ C0] R10: ffffffff87b72003 R11: 1ffffffff0f6e400 R12: 0000000000000000
[ 478.834469][ C0] R13: 0000000000000000 R14: 0000000000000008 R15: ffff88811685e540
[ 478.834481][ C0] exit_to_user_mode_prepare+0x87/0xd0
[ 478.834496][ C0] irqentry_exit_to_user_mode+0x9/0x10
[ 478.834513][ C0] irqentry_exit+0x12/0x40
[ 478.834529][ C0] sysvec_apic_timer_interrupt+0x64/0xc0
[ 478.834546][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 478.834562][ C0] RIP: 0033:0x7fef2733db97
[ 478.834574][ C0] Code: e8 ae 11 06 00 66 2e 0f 1f 84 00 00 00 00 00 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
[ 478.834585][ C0] RSP: 002b:00007ffdafe26980 EFLAGS: 00000246
[ 478.834596][ C0] RAX: 000000000000000f RBX: 00007fef27615fa0 RCX: 00007fef27432c91
[ 478.834605][ C0] RDX: 00007ffdafe26980 RSI: 00007ffdafe26ab0 RDI: 0000000000000011
[ 478.834614][ C0] RBP: 00007fef27432c91 R08: 0000000000000000 R09: 0000000000000000
[ 478.834623][ C0] R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
[ 478.834633][ C0] R13: 00007fef27615fac R14: 00007fef27615fa0 R15: 00007fef27615fa0
[ 478.834645][ C0]
[ 546.647919][ T16] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 8901 jiffies s: 1149 root: 0x1/.
[ 546.659766][ T16] rcu: blocking rcu_node structures (internal RCU debug):
[ 546.666896][ T16] Sending NMI from CPU 1 to CPUs 0:
[ 546.672134][ C0] NMI backtrace for cpu 0
[ 546.672144][ C0] CPU: 0 PID: 365 Comm: syz.2.18 Not tainted syzkaller #0
[ 546.672161][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 546.672170][ C0] RIP: 0010:native_apic_msr_write+0x39/0x50
[ 546.672198][ 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 <66> 90 eb d9 89 f6 31 d2 e8 5a dc 5b 01 5d c3 0f 1f 84 00 00 00 00
[ 546.672209][ C0] RSP: 0000:ffffc90000006e50 EFLAGS: 00000046
[ 546.672223][ C0] RAX: 0000000000000089 RBX: 0000000000000089 RCX: 0000000000000838
[ 546.672233][ C0] RDX: 0000000000000000 RSI: 0000000000000089 RDI: 0000000000000838
[ 546.672242][ C0] RBP: ffffc90000006e50 R08: ffff88811685e540 R09: 0000000000000002
[ 546.672252][ C0] R10: 0000000000000000 R11: ffffffff8134c5d0 R12: 0000000000000020
[ 546.672261][ C0] R13: dffffc0000000000 R14: ffffffff866d4b60 R15: dffffc0000000000
[ 546.672272][ C0] FS: 0000555586a17500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[ 546.672285][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 546.672296][ C0] CR2: 00000000000008a7 CR3: 000000010ef85000 CR4: 00000000003506b0
[ 546.672311][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 546.672319][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 546.672328][ C0] Call Trace:
[ 546.672332][ C0]
[ 546.672337][ C0] lapic_next_event+0x70/0x80
[ 546.672357][ C0] clockevents_program_event+0x1d9/0x330
[ 546.672372][ C0] tick_program_event+0xa3/0x120
[ 546.672389][ C0] hrtimer_interrupt+0x501/0x8c0
[ 546.672413][ C0] __sysvec_apic_timer_interrupt+0x11e/0x440
[ 546.672431][ C0] sysvec_apic_timer_interrupt+0x53/0xc0
[ 546.672449][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 546.672467][ C0] RIP: 0010:unwind_get_return_address+0x1d/0x90
[ 546.672484][ C0] Code: 90 90 90 90 90 90 90 90 b8 a3 2b a8 ac 55 48 89 e5 41 57 41 56 53 48 89 fb 49 be 00 00 00 00 00 fc ff df 48 89 f8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 75 48 83 3b 00 74 3a 48 83 c3 48 49 89 df 49
[ 546.672494][ C0] RSP: 0000:ffffc90000007120 EFLAGS: 00000a02
[ 546.672506][ C0] RAX: 1ffff92000000e29 RBX: ffffc90000007148 RCX: 0000000000007101
[ 546.672516][ C0] RDX: ffffc90000007c50 RSI: 1ffff92000000e2a RDI: ffffc90000007148
[ 546.672526][ C0] RBP: ffffc90000007138 R08: ffffc90000007210 R09: ffffc90000007208
[ 546.672536][ C0] R10: 000000000000000d R11: fffff52000000e35 R12: ffff88811685e540
[ 546.672545][ C0] R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc90000007148
[ 546.672558][ C0] ? __cfi_stack_trace_consume_entry+0x10/0x10
[ 546.672576][ C0] arch_stack_walk+0xfc/0x150
[ 546.672597][ C0] ? addrconf_rs_timer+0x2cf/0x610
[ 546.672618][ C0] stack_trace_save+0xa6/0xf0
[ 546.672634][ C0] ? __cfi_stack_trace_save+0x10/0x10
[ 546.672650][ C0] ? kasan_set_track+0x60/0x70
[ 546.672666][ C0] ? __kasan_slab_free+0x11/0x20
[ 546.672682][ C0] ? memset+0x35/0x40
[ 546.672695][ C0] kasan_set_track+0x4b/0x70
[ 546.672709][ C0] ? kasan_set_track+0x4b/0x70
[ 546.672724][ C0] ? kasan_save_free_info+0x31/0x50
[ 546.672743][ C0] ? ____kasan_slab_free+0x132/0x180
[ 546.672758][ C0] ? __kasan_slab_free+0x11/0x20
[ 546.672773][ C0] ? slab_free_freelist_hook+0xc2/0x190
[ 546.672800][ C0] ? kmem_cache_free+0x12d/0x300
[ 546.672817][ C0] ? kfree_skbmem+0x10c/0x180
[ 546.672835][ C0] ? kfree_skb_reason+0xdc/0x230
[ 546.672852][ C0] ? neigh_connected_output+0x47e/0x500
[ 546.672868][ C0] ? ip6_finish_output2+0x1606/0x18a0
[ 546.672883][ C0] ? ip6_finish_output+0x5f9/0xbb0
[ 546.672896][ C0] ? ip6_output+0x1fa/0x410
[ 546.672908][ C0] ? ndisc_send_skb+0x7dc/0xcc0
[ 546.672925][ C0] ? ndisc_send_rs+0x670/0x870
[ 546.672948][ C0] ? __kasan_slab_free+0x11/0x20
[ 546.672963][ C0] ? kmem_cache_free+0x12d/0x300
[ 546.672980][ C0] kasan_save_free_info+0x31/0x50
[ 546.672999][ C0] ____kasan_slab_free+0x132/0x180
[ 546.673016][ C0] __kasan_slab_free+0x11/0x20
[ 546.673031][ C0] slab_free_freelist_hook+0xc2/0x190
[ 546.673051][ C0] ? kfree_skbmem+0x10c/0x180
[ 546.673069][ C0] kmem_cache_free+0x12d/0x300
[ 546.673087][ C0] kfree_skbmem+0x10c/0x180
[ 546.673104][ C0] ? neigh_connected_output+0x47e/0x500
[ 546.673119][ C0] kfree_skb_reason+0xdc/0x230
[ 546.673137][ C0] neigh_connected_output+0x47e/0x500
[ 546.673155][ C0] ip6_finish_output2+0x1606/0x18a0
[ 546.673173][ C0] ? __cfi_ip6_finish_output2+0x10/0x10
[ 546.673188][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 546.673204][ C0] ? __cfi_ip6_mtu+0x10/0x10
[ 546.673223][ C0] ? ip6_finish_output+0x5ea/0xbb0
[ 546.673237][ C0] ip6_finish_output+0x5f9/0xbb0
[ 546.673251][ C0] ip6_output+0x1fa/0x410
[ 546.673264][ C0] ? __cfi_ip6_output+0x10/0x10
[ 546.673277][ C0] ? __cfi_ip6_finish_output+0x10/0x10
[ 546.673290][ C0] ? __cfi_ip6_output+0x10/0x10
[ 546.673304][ C0] ndisc_send_skb+0x7dc/0xcc0
[ 546.673323][ C0] ? __cfi_ndisc_send_skb+0x10/0x10
[ 546.673339][ C0] ? __irq_exit_rcu+0x5e/0xf0
[ 546.673354][ C0] ? __cfi_dst_output+0x10/0x10
[ 546.673370][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 546.673387][ C0] ? memset+0x35/0x40
[ 546.673399][ C0] ? __ndisc_fill_addr_option+0xd7/0x130
[ 546.673417][ C0] ndisc_send_rs+0x670/0x870
[ 546.673435][ C0] addrconf_rs_timer+0x2cf/0x610
[ 546.673454][ C0] ? __irq_exit_rcu+0x5e/0xf0
[ 546.673468][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10
[ 546.673489][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10
[ 546.673507][ C0] call_timer_fn+0x46/0x2a0
[ 546.673524][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10
[ 546.673543][ C0] __run_timers+0x65b/0x9f0
[ 546.673563][ C0] ? calc_index+0x200/0x200
[ 546.673580][ C0] ? run_timer_softirq+0xe/0xf0
[ 546.673598][ C0] run_timer_softirq+0x6a/0xf0
[ 546.673614][ C0] handle_softirqs+0x1d7/0x600
[ 546.673629][ C0] ? irqtime_account_irq+0xc4/0x240
[ 546.673648][ C0] __irq_exit_rcu+0x52/0xf0
[ 546.673662][ C0] irq_exit_rcu+0x9/0x10
[ 546.673675][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0
[ 546.673692][ C0]
[ 546.673696][ C0]
[ 546.673701][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 546.673717][ C0] RIP: 0010:preempt_schedule_irq+0xa5/0x120
[ 546.673733][ C0] Code: 44 24 20 00 02 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 91 a2 4c fc fb bf 01 00 00 00 f6 e4 ff ff fa bf 01 00 00 00 e8 3b a4 4c fc 65 48 8b 1d 43 6b
[ 546.673743][ C0] RSP: 0000:ffffc90000197d60 EFLAGS: 00000246
[ 546.673754][ C0] RAX: 1ffff11022d0be01 RBX: ffffc90000197e28 RCX: ffffffff87b7a100
[ 546.673764][ C0] RDX: 1ffffffff0f6e400 RSI: 0000000000000000 RDI: 0000000000000001
[ 546.673773][ C0] RBP: ffffc90000197dd8 R08: ffffffff87b72008 R09: ffffffff87b72018
[ 546.673789][ C0] R10: ffffffff87b72003 R11: 1ffffffff0f6e400 R12: 0000000000000000
[ 546.673799][ C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000032fac
[ 546.673811][ C0] ? __cfi_preempt_schedule_irq+0x10/0x10
[ 546.673826][ C0] ? __cfi_sched_clock_cpu+0x10/0x10
[ 546.673842][ C0] raw_irqentry_exit_cond_resched+0x29/0x30
[ 546.673857][ C0] irqentry_exit+0x37/0x40
[ 546.673874][ C0] sysvec_apic_timer_interrupt+0x64/0xc0
[ 546.673890][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 546.673906][ C0] RIP: 0010:exit_to_user_mode_loop+0x4a/0xb0
[ 546.673922][ C0] Code: 00 e8 ca 8a 5a 00 e8 b5 27 f8 00 fa e8 ff a2 9a 03 65 48 8b 05 47 58 a2 7e 4c 8b 30 41 f7 c6 0e 30 02 00 74 5b fb 41 f6 c6 08 <74> 05 e8 df e6 9f 03 41 f7 c6 00 10 00 00 74 08 48 89 df e8 6e 95
[ 546.673932][ C0] RSP: 0000:ffffc90000197ed0 EFLAGS: 00000202
[ 546.673943][ C0] RAX: 0000000000000000 RBX: ffffc90000197f58 RCX: 934667fe02ca9000
[ 546.673952][ C0] RDX: 1ffffffff0f6e400 RSI: 0000000000000008 RDI: ffffc90000197f58
[ 546.673962][ C0] RBP: ffffc90000197ee0 R08: ffffffff87b72008 R09: ffffffff87b72018
[ 546.673972][ C0] R10: ffffffff87b72003 R11: 1ffffffff0f6e400 R12: 0000000000000000
[ 546.673981][ C0] R13: 0000000000000000 R14: 0000000000000008 R15: ffff88811685e540
[ 546.673993][ C0] exit_to_user_mode_prepare+0x87/0xd0
[ 546.674008][ C0] irqentry_exit_to_user_mode+0x9/0x10
[ 546.674025][ C0] irqentry_exit+0x12/0x40
[ 546.674042][ C0] sysvec_apic_timer_interrupt+0x64/0xc0
[ 546.674059][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 546.674075][ C0] RIP: 0033:0x7fef2733db97
[ 546.674086][ C0] Code: e8 ae 11 06 00 66 2e 0f 1f 84 00 00 00 00 00 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
[ 546.674096][ C0] RSP: 002b:00007ffdafe26980 EFLAGS: 00000246
[ 546.674107][ C0] RAX: 000000000000000f RBX: 00007fef27615fa0 RCX: 00007fef27432c91
[ 546.674116][ C0] RDX: 00007ffdafe26980 RSI: 00007ffdafe26ab0 RDI: 0000000000000011
[ 546.674126][ C0] RBP: 00007fef27432c91 R08: 0000000000000000 R09: 0000000000000000
[ 546.674135][ C0] R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
[ 546.674144][ C0] R13: 00007fef27615fac R14: 00007fef27615fa0 R15: 00007fef27615fa0
[ 546.674156][ C0]
[ 600.417900][ T29] INFO: task kworker/u4:0:8 blocked for more than 122 seconds.
[ 600.426068][ T29] Not tainted syzkaller #0
[ 600.431782][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 600.441146][ T29] task:kworker/u4:0 state:D stack:21408 pid:8 ppid:2 flags:0x00004000
[ 600.451635][ T29] Workqueue: events_unbound linkwatch_event
[ 600.458249][ T29] Call Trace:
[ 600.461719][ T29]
[ 600.464759][ T29] __schedule+0xba6/0x1500
[ 600.469500][ T29] ? __kasan_check_write+0x14/0x20
[ 600.474735][ T29] ? release_firmware_map_entry+0x190/0x190
[ 600.480883][ T29] ? kthread_data+0x50/0xc0
[ 600.485403][ T29] ? wq_worker_sleeping+0x64/0x280
[ 600.490934][ T29] schedule+0xbd/0x170
[ 600.495202][ T29] synchronize_rcu_expedited+0x773/0x880
[ 600.501170][ T29] ? __cfi_synchronize_rcu_expedited+0x10/0x10
[ 600.507429][ T29] ? unwind_next_frame+0x3d5/0x700
[ 600.512796][ T29] ? __cfi_wait_rcu_exp_gp+0x10/0x10
[ 600.518374][ T29] ? __kasan_check_write+0x14/0x20
[ 600.523672][ T29] ? __this_cpu_preempt_check+0x13/0x20
[ 600.529560][ T29] ? __cfi_autoremove_wake_function+0x10/0x10
[ 600.535934][ T29] ? _raw_spin_lock+0x94/0xf0
[ 600.541554][ T29] ? __kasan_check_read+0x11/0x20
[ 600.546772][ T29] synchronize_net+0x28/0x40
[ 600.551530][ T29] dev_deactivate_many+0x6b6/0xbc0
[ 600.556744][ T29] ? dev_deactivate_many+0x2c6/0xbc0
[ 600.562359][ T29] dev_deactivate+0x114/0x1b0
[ 600.567084][ T29] ? __cfi_dev_deactivate+0x10/0x10
[ 600.572438][ T29] ? __cfi_veth_get_iflink+0x10/0x10
[ 600.577740][ T29] ? _raw_write_unlock+0x2b/0x60
[ 600.582821][ T29] linkwatch_do_dev+0x10d/0x160
[ 600.588151][ T29] __linkwatch_run_queue+0x410/0x660
[ 600.593632][ T29] ? linkwatch_run_queue+0x20/0x20
[ 600.599148][ T29] ? __schedule+0xbae/0x1500
[ 600.604061][ T29] ? __cfi__raw_spin_lock_irq+0x10/0x10
[ 600.609945][ T29] linkwatch_event+0x4c/0x60
[ 600.614593][ T29] process_one_work+0x71f/0xc40
[ 600.619640][ T29] worker_thread+0xa29/0x11e0
[ 600.624342][ T29] kthread+0x281/0x320
[ 600.628570][ T29] ? __cfi_worker_thread+0x10/0x10
[ 600.633705][ T29] ? __cfi_kthread+0x10/0x10
[ 600.638555][ T29] ret_from_fork+0x1f/0x30
[ 600.642994][ T29]
[ 600.646501][ T29] INFO: task kworker/1:3:332 blocked for more than 123 seconds.
[ 600.654334][ T29] Not tainted syzkaller #0
[ 600.659468][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 600.668633][ T29] task:kworker/1:3 state:D stack:24448 pid:332 ppid:2 flags:0x00004000
[ 600.678344][ T29] Workqueue: ipv6_addrconf addrconf_dad_work
[ 600.684372][ T29] Call Trace:
[ 600.687756][ T29]
[ 600.691185][ T29] __schedule+0xba6/0x1500
[ 600.695734][ T29] ? release_firmware_map_entry+0x190/0x190
[ 600.701964][ T29] ? __mutex_add_waiter+0xcc/0x280
[ 600.707279][ T29] ? __kasan_check_write+0x14/0x20
[ 600.712622][ T29] ? _raw_spin_unlock_irq+0x4d/0x70
[ 600.717952][ T29] ? wq_worker_sleeping+0x1d9/0x280
[ 600.723432][ T29] schedule+0xbd/0x170
[ 600.727692][ T29] schedule_preempt_disabled+0x13/0x20
[ 600.733367][ T29] __mutex_lock+0x82f/0x1790
[ 600.738164][ T29] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20
[ 600.745118][ T29] ? sched_balance_newidle+0x92c/0xce0
[ 600.750746][ T29] ? kvm_sched_clock_read+0x18/0x40
[ 600.755966][ T29] ? sched_clock+0x9/0x10
[ 600.760610][ T29] ? sched_clock_cpu+0x6e/0x260
[ 600.765568][ T29] ? __cfi_sched_clock_cpu+0x10/0x10
[ 600.771200][ T29] ? put_prev_entity+0x3b0/0x3b0
[ 600.776167][ T29] __mutex_lock_slowpath+0xe/0x10
[ 600.781712][ T29] mutex_lock+0x10a/0x1b0
[ 600.786094][ T29] ? __cfi_mutex_lock+0x10/0x10
[ 600.791197][ T29] ? __perf_event_task_sched_in+0x1a0/0x1f0
[ 600.797482][ T29] ? __cfi___perf_event_task_sched_in+0x10/0x10
[ 600.804548][ T29] rtnl_lock+0x15/0x20
[ 600.808886][ T29] addrconf_dad_work+0xca/0x14d0
[ 600.813963][ T29] ? _raw_spin_unlock+0x4c/0x70
[ 600.818999][ T29] ? finish_task_switch+0x16b/0x7b0
[ 600.824220][ T29] ? __cfi_addrconf_dad_work+0x10/0x10
[ 600.829885][ T29] ? __schedule+0xbae/0x1500
[ 600.834598][ T29] ? __cfi__raw_spin_lock_irq+0x10/0x10
[ 600.840424][ T29] process_one_work+0x71f/0xc40
[ 600.845312][ T29] worker_thread+0xa29/0x11e0
[ 600.850158][ T29] ? _raw_spin_lock_irqsave+0xc2/0x130
[ 600.855640][ T29] ? __kthread_parkme+0x142/0x180
[ 600.862060][ T29] kthread+0x281/0x320
[ 600.866155][ T29] ? __cfi_worker_thread+0x10/0x10
[ 600.871610][ T29] ? __cfi_kthread+0x10/0x10
[ 600.876432][ T29] ret_from_fork+0x1f/0x30
[ 600.881514][ T29]
[ 600.884575][ T29] INFO: task syz-executor:367 blocked for more than 123 seconds.
[ 600.892590][ T29] Not tainted syzkaller #0
[ 600.897539][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 600.906513][ T29] task:syz-executor state:D stack:22080 pid:367 ppid:1 flags:0x00004004
[ 600.916038][ T29] Call Trace:
[ 600.919711][ T29]
[ 600.922807][ T29] __schedule+0xba6/0x1500
[ 600.927270][ T29] ? release_firmware_map_entry+0x190/0x190
[ 600.933773][ T29] ? __mutex_add_waiter+0x180/0x280
[ 600.939215][ T29] ? __kasan_check_write+0x14/0x20
[ 600.944521][ T29] ? trace_contention_begin+0xa0/0xa0
[ 600.950359][ T29] schedule+0xbd/0x170
[ 600.954640][ T29] schedule_preempt_disabled+0x13/0x20
[ 600.963146][ T29] __mutex_lock+0x82f/0x1790
[ 600.967802][ T29] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20
[ 600.975202][ T29] ? selinux_capable+0x2b6/0x3b0
[ 600.980186][ T29] ? __cfi_selinux_capable+0x10/0x10
[ 600.985616][ T29] ? 0xffffffffa00009d0
[ 600.990502][ T29] ? is_bpf_text_address+0x177/0x190
[ 600.996181][ T29] ? cap_capable+0x1aa/0x230
[ 601.001363][ T29] __mutex_lock_slowpath+0xe/0x10
[ 601.007025][ T29] mutex_lock+0x10a/0x1b0
[ 601.011525][ T29] ? __cfi_mutex_lock+0x10/0x10
[ 601.016490][ T29] ? ns_capable+0x8c/0xf0
[ 601.021258][ T29] ? netlink_net_capable+0x125/0x160
[ 601.026824][ T29] rtnetlink_rcv_msg+0x9fc/0xe00
[ 601.032236][ T29] ? __cfi_rtnetlink_rcv_msg+0x10/0x10
[ 601.037807][ T29] ? kernel_text_address+0xa0/0xd0
[ 601.043285][ T29] ? __kernel_text_address+0xd/0x30
[ 601.048718][ T29] ? avc_has_perm_noaudit+0x391/0x490
[ 601.054122][ T29] ? memcpy+0x56/0x70
[ 601.058392][ T29] ? avc_has_perm_noaudit+0x30b/0x490
[ 601.063796][ T29] ? __cfi_avc_has_perm_noaudit+0x10/0x10
[ 601.069799][ T29] ? slab_post_alloc_hook+0x4f/0x2d0
[ 601.075287][ T29] ? avc_has_perm+0x163/0x250
[ 601.080650][ T29] ? __alloc_skb+0x236/0x4b0
[ 601.085352][ T29] ? netlink_sendmsg+0x635/0xbd0
[ 601.090560][ T29] ? __sys_sendto+0x4ac/0x660
[ 601.095271][ T29] ? __cfi_avc_has_perm+0x10/0x10
[ 601.100645][ T29] ? selinux_nlmsg_lookup+0x400/0x4c0
[ 601.106137][ T29] netlink_rcv_skb+0x20f/0x460
[ 601.111165][ T29] ? __cfi_rtnetlink_rcv_msg+0x10/0x10
[ 601.116829][ T29] ? __cfi_netlink_rcv_skb+0x10/0x10
[ 601.122386][ T29] ? __netlink_lookup+0x387/0x3b0
[ 601.127521][ T29] rtnetlink_rcv+0x1c/0x20
[ 601.132117][ T29] netlink_unicast+0x8ab/0xa30
[ 601.137077][ T29] netlink_sendmsg+0x8b9/0xbd0
[ 601.142024][ T29] ? __cfi_netlink_sendmsg+0x10/0x10
[ 601.147595][ T29] ? security_socket_sendmsg+0x93/0xb0
[ 601.153422][ T29] __sys_sendto+0x4ac/0x660
[ 601.158238][ T29] ? __cfi___sys_sendto+0x10/0x10
[ 601.163533][ T29] ? blkcg_maybe_throttle_current+0x1e0/0xa20
[ 601.170006][ T29] ? __cfi_blkcg_maybe_throttle_current+0x10/0x10
[ 601.176532][ T29] ? fput+0x15b/0x1a0
[ 601.180714][ T29] __x64_sys_sendto+0xe5/0x100
[ 601.185594][ T29] x64_sys_call+0x83/0x9a0
[ 601.190343][ T29] do_syscall_64+0x4c/0xa0
[ 601.194875][ T29] ? clear_bhb_loop+0x30/0x80
[ 601.200418][ T29] ? clear_bhb_loop+0x30/0x80
[ 601.205313][ T29] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 601.212064][ T29] RIP: 0033:0x7fd432557997
[ 601.216679][ T29] RSP: 002b:00007ffcfe9c6220 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 601.225367][ T29] RAX: ffffffffffffffda RBX: 0000555571557500 RCX: 00007fd432557997
[ 601.233570][ T29] RDX: 0000000000000028 RSI: 00007fd433344670 RDI: 0000000000000003
[ 601.241692][ T29] RBP: 0000000000000001 R08: 00007ffcfe9c6284 R09: 000000000000000c
[ 601.250270][ T29] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
[ 601.258713][ T29] R13: 0000000000000000 R14: 00007fd433344670 R15: 0000000000000000
[ 601.266724][ T29]
[ 601.270212][ T29] NMI backtrace for cpu 1
[ 601.274552][ T29] CPU: 1 PID: 29 Comm: khungtaskd Not tainted syzkaller #0
[ 601.282032][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 601.292188][ T29] Call Trace:
[ 601.295478][ T29]
[ 601.298513][ T29] __dump_stack+0x21/0x24
[ 601.303122][ T29] dump_stack_lvl+0x110/0x170
[ 601.307907][ T29] ? __cfi_dump_stack_lvl+0x8/0x8
[ 601.312983][ T29] dump_stack+0x15/0x24
[ 601.317248][ T29] nmi_cpu_backtrace+0x2af/0x2c0
[ 601.322204][ T29] ? rcu_read_unlock_special+0xb2/0x440
[ 601.327948][ T29] ? __cfi_nmi_cpu_backtrace+0x10/0x10
[ 601.333521][ T29] ? nmi_trigger_cpumask_backtrace+0xf6/0x3a0
[ 601.339699][ T29] ? __cfi_nmi_raise_cpu_backtrace+0x10/0x10
[ 601.345709][ T29] ? __cfi_nmi_raise_cpu_backtrace+0x10/0x10
[ 601.351882][ T29] nmi_trigger_cpumask_backtrace+0x16b/0x3a0
[ 601.358061][ T29] arch_trigger_cpumask_backtrace+0x10/0x20
[ 601.364430][ T29] watchdog+0xd68/0xeb0
[ 601.368623][ T29] ? __cfi_watchdog+0x10/0x10
[ 601.373498][ T29] ? __kasan_check_read+0x11/0x20
[ 601.378792][ T29] ? __kthread_parkme+0x142/0x180
[ 601.384177][ T29] kthread+0x281/0x320
[ 601.388258][ T29] ? __cfi_watchdog+0x10/0x10
[ 601.393389][ T29] ? __cfi_kthread+0x10/0x10
[ 601.397996][ T29] ret_from_fork+0x1f/0x30
[ 601.402614][ T29]
[ 601.405696][ T29] Sending NMI from CPU 1 to CPUs 0:
[ 601.410929][ C0] NMI backtrace for cpu 0
[ 601.410940][ C0] CPU: 0 PID: 365 Comm: syz.2.18 Not tainted syzkaller #0
[ 601.410955][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 601.410963][ C0] RIP: 0010:ktime_get_update_offsets_now+0x242/0x320
[ 601.410986][ C0] Code: ec 07 56 06 48 8b 45 a8 42 80 3c 30 00 74 0d 48 8b 7d c8 e8 50 e4 52 00 48 8b 55 c8 48 89 1a 4c 03 6d 90 48 8b 1d de 07 56 06 <4c> 89 ef 48 89 de e8 23 89 0d 00 49 39 dd 7d 1e e8 c9 86 0d 00 8b
[ 601.410997][ C0] RSP: 0000:ffffc90000006cf0 EFLAGS: 00000016
[ 601.411012][ C0] RAX: ffffffff8163e760 RBX: 7fffffffffffffff RCX: ffff88811685e540
[ 601.411023][ C0] RDX: 0000000000010100 RSI: 0000000000000003 RDI: 0000000000000003
[ 601.411033][ C0] RBP: ffffc90000006d60 R08: 0000000000000003 R09: 0000000000000004
[ 601.411042][ C0] R10: 0000000000000000 R11: ffffffff812e9ec0 R12: 000000000000986e
[ 601.411051][ C0] R13: 0000008c0539a6d8 R14: dffffc0000000000 R15: ffff8881f6e29e78
[ 601.411062][ C0] FS: 0000555586a17500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[ 601.411075][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 601.411086][ C0] CR2: 00000000000008a7 CR3: 000000010ef85000 CR4: 00000000003506b0
[ 601.411101][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 601.411109][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 601.411118][ C0] Call Trace:
[ 601.411123][ C0]
[ 601.411129][ C0] hrtimer_interrupt+0x130/0x8c0
[ 601.411149][ C0] ? sched_clock+0x9/0x10
[ 601.411167][ C0] ? sched_clock_cpu+0x6e/0x260
[ 601.411182][ C0] ? __kasan_check_write+0x14/0x20
[ 601.411196][ C0] ? irq_work_run_list+0x26c/0x2b0
[ 601.411214][ C0] ? __cfi_sched_clock_cpu+0x10/0x10
[ 601.411229][ C0] ? irq_work_run+0xf0/0xf0
[ 601.411246][ C0] __sysvec_apic_timer_interrupt+0x11e/0x440
[ 601.411274][ C0] sysvec_apic_timer_interrupt+0x53/0xc0
[ 601.411292][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 601.411310][ C0] RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x1/0x80
[ 601.411331][ C0] Code: 10 48 89 74 11 18 48 89 44 11 20 5d c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 b8 80 f8 fd 6f 55 <48> 89 e5 48 8b 45 08 65 48 8b 0d f0 f9 90 7e 65 8b 15 f1 f9 90 7e
[ 601.411341][ C0] RSP: 0000:ffffc90000006f90 EFLAGS: 00000246
[ 601.411353][ C0] RAX: dffffc0000000000 RBX: ffff88810d9480e8 RCX: dffffc0000000000
[ 601.411363][ C0] RDX: ffff88810d86e000 RSI: 0000000000000000 RDI: 0000000000000000
[ 601.411372][ C0] RBP: ffffc900000070b0 R08: 0000000000000003 R09: 0000000000000004
[ 601.411381][ C0] R10: dffffc0000000000 R11: fffff52000000de4 R12: 1ffff11021b0dc1a
[ 601.411391][ C0] R13: ffff88810d86e0d0 R14: ffff888123cf1000 R15: 0000000000000000
[ 601.411404][ C0] ? sch_direct_xmit+0x1da/0x900
[ 601.411425][ C0] ? __kasan_check_write+0x14/0x20
[ 601.411438][ C0] ? _raw_spin_trylock+0xb7/0x150
[ 601.411451][ C0] ? __cfi_sch_direct_xmit+0x10/0x10
[ 601.411469][ C0] ? netdev_core_pick_tx+0x1f7/0x380
[ 601.411487][ C0] __dev_queue_xmit+0x1638/0x3470
[ 601.411506][ C0] ? __dev_queue_xmit+0x258/0x3470
[ 601.411522][ C0] ? __kasan_check_write+0x14/0x20
[ 601.411536][ C0] ? __cfi___dev_queue_xmit+0x10/0x10
[ 601.411552][ C0] ? irq_work_run+0xf0/0xf0
[ 601.411569][ C0] ? debug_smp_processor_id+0x17/0x20
[ 601.411587][ C0] ? irqtime_account_irq+0xc4/0x240
[ 601.411607][ C0] ? __irq_exit_rcu+0x5e/0xf0
[ 601.411622][ C0] ? irqentry_exit+0x37/0x40
[ 601.411639][ C0] ? sysvec_irq_work+0x61/0xc0
[ 601.411654][ C0] ? eth_header+0x123/0x210
[ 601.411671][ C0] arp_xmit+0xd0/0x1f0
[ 601.411686][ C0] ? arp_create+0x4b0/0x7f0
[ 601.411701][ C0] ? __cfi_arp_xmit+0x10/0x10
[ 601.411716][ C0] ? arp_create+0x4b0/0x7f0
[ 601.411733][ C0] arp_send_dst+0x1d3/0x280
[ 601.411748][ C0] arp_process+0x1365/0x1910
[ 601.411766][ C0] ? __cfi_arp_process+0x10/0x10
[ 601.411782][ C0] ? arp_process+0xd/0x1910
[ 601.411798][ C0] ? __cfi_arp_process+0x10/0x10
[ 601.411813][ C0] NF_HOOK+0x177/0x1d0
[ 601.411828][ C0] ? __cfi_arp_process+0x10/0x10
[ 601.411843][ C0] ? arp_xmit+0x1f0/0x1f0
[ 601.411861][ C0] arp_rcv+0x2ef/0x480
[ 601.411876][ C0] ? __cfi_arp_rcv+0x10/0x10
[ 601.411892][ C0] __netif_receive_skb_list_core+0x71e/0x780
[ 601.411912][ C0] ? set_rps_cpu+0x5e0/0x5e0
[ 601.411930][ C0] netif_receive_skb_list_internal+0x7f8/0xab0
[ 601.411949][ C0] ? __cfi_netif_receive_skb_list_internal+0x10/0x10
[ 601.411967][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 601.411985][ C0] ? napi_gro_receive+0x41a/0x880
[ 601.412001][ C0] napi_gro_receive+0x444/0x880
[ 601.412016][ C0] receive_buf+0x207b/0x4960
[ 601.412034][ C0] ? irq_work_run+0xf0/0xf0
[ 601.412051][ C0] ? virtnet_poll_tx+0x540/0x540
[ 601.412068][ C0] ? __irq_exit_rcu+0x5e/0xf0
[ 601.412082][ C0] ? irqentry_exit+0x37/0x40
[ 601.412098][ C0] ? sysvec_irq_work+0x61/0xc0
[ 601.412113][ C0] ? detach_buf_split+0x882/0xa80
[ 601.412130][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 601.412148][ C0] ? virtqueue_get_buf_ctx+0x6c1/0xcd0
[ 601.412165][ C0] virtnet_poll+0x5d3/0x1180
[ 601.412190][ C0] ? __cfi_virtnet_poll+0x10/0x10
[ 601.412207][ C0] ? __cfi_virtnet_poll+0x10/0x10
[ 601.412224][ C0] __napi_poll+0xd0/0x5e0
[ 601.412241][ C0] net_rx_action+0x4b6/0xac0
[ 601.412258][ C0] ? irqtime_account_irq+0xc4/0x240
[ 601.412285][ C0] ? __cfi_net_rx_action+0x10/0x10
[ 601.412305][ C0] handle_softirqs+0x1d7/0x600
[ 601.412320][ C0] ? irqtime_account_irq+0xc4/0x240
[ 601.412339][ C0] __irq_exit_rcu+0x52/0xf0
[ 601.412353][ C0] irq_exit_rcu+0x9/0x10
[ 601.412366][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0
[ 601.412383][ C0]
[ 601.412387][ C0]
[ 601.412392][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 601.412408][ C0] RIP: 0010:preempt_schedule_irq+0xa5/0x120
[ 601.412424][ C0] Code: 44 24 20 00 02 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 91 a2 4c fc fb bf 01 00 00 00 f6 e4 ff ff fa bf 01 00 00 00 e8 3b a4 4c fc 65 48 8b 1d 43 6b
[ 601.412435][ C0] RSP: 0000:ffffc90000197d60 EFLAGS: 00000246
[ 601.412446][ C0] RAX: 1ffff11022d0be01 RBX: ffffc90000197e28 RCX: ffffffff87b7a100
[ 601.412456][ C0] RDX: 1ffffffff0f6e400 RSI: 0000000000000000 RDI: 0000000000000001
[ 601.412465][ C0] RBP: ffffc90000197dd8 R08: ffffffff87b72008 R09: ffffffff87b72018
[ 601.412475][ C0] R10: ffffffff87b72003 R11: 1ffffffff0f6e400 R12: 0000000000000000
[ 601.412485][ C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000032fac
[ 601.412498][ C0] ? __cfi_preempt_schedule_irq+0x10/0x10
[ 601.412513][ C0] ? __cfi_sched_clock_cpu+0x10/0x10
[ 601.412529][ C0] raw_irqentry_exit_cond_resched+0x29/0x30
[ 601.412544][ C0] irqentry_exit+0x37/0x40
[ 601.412561][ C0] sysvec_apic_timer_interrupt+0x64/0xc0
[ 601.412578][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 601.412594][ C0] RIP: 0010:exit_to_user_mode_loop+0x4a/0xb0
[ 601.412610][ C0] Code: 00 e8 ca 8a 5a 00 e8 b5 27 f8 00 fa e8 ff a2 9a 03 65 48 8b 05 47 58 a2 7e 4c 8b 30 41 f7 c6 0e 30 02 00 74 5b fb 41 f6 c6 08 <74> 05 e8 df e6 9f 03 41 f7 c6 00 10 00 00 74 08 48 89 df e8 6e 95
[ 601.412620][ C0] RSP: 0000:ffffc90000197ed0 EFLAGS: 00000202
[ 601.412631][ C0] RAX: 0000000000000000 RBX: ffffc90000197f58 RCX: 934667fe02ca9000
[ 601.412640][ C0] RDX: 1ffffffff0f6e400 RSI: 0000000000000008 RDI: ffffc90000197f58
[ 601.412650][ C0] RBP: ffffc90000197ee0 R08: ffffffff87b72008 R09: ffffffff87b72018
[ 601.412660][ C0] R10: ffffffff87b72003 R11: 1ffffffff0f6e400 R12: 0000000000000000
[ 601.412669][ C0] R13: 0000000000000000 R14: 0000000000000008 R15: ffff88811685e540
[ 601.412681][ C0] exit_to_user_mode_prepare+0x87/0xd0
[ 601.412696][ C0] irqentry_exit_to_user_mode+0x9/0x10
[ 601.412713][ C0] irqentry_exit+0x12/0x40
[ 601.412730][ C0] sysvec_apic_timer_interrupt+0x64/0xc0
[ 601.412746][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 601.412762][ C0] RIP: 0033:0x7fef2733db97
[ 601.412775][ C0] Code: e8 ae 11 06 00 66 2e 0f 1f 84 00 00 00 00 00 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
[ 601.412785][ C0] RSP: 002b:00007ffdafe26980 EFLAGS: 00000246
[ 601.412796][ C0] RAX: 000000000000000f RBX: 00007fef27615fa0 RCX: 00007fef27432c91
[ 601.412805][ C0] RDX: 00007ffdafe26980 RSI: 00007ffdafe26ab0 RDI: 0000000000000011
[ 601.412815][ C0] RBP: 00007fef27432c91 R08: 0000000000000000 R09: 0000000000000000
[ 601.412824][ C0] R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
[ 601.412833][ C0] R13: 00007fef27615fac R14: 00007fef27615fa0 R15: 00007fef27615fa0
[ 601.412845][ C0]
[ 613.207905][ T16] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 15557 jiffies s: 1149 root: 0x1/.
[ 613.220006][ T16] rcu: blocking rcu_node structures (internal RCU debug):
[ 613.227229][ T16] Sending NMI from CPU 1 to CPUs 0:
[ 613.232661][ C0] NMI backtrace for cpu 0
[ 613.232675][ C0] CPU: 0 PID: 365 Comm: syz.2.18 Not tainted syzkaller #0
[ 613.232691][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 613.232699][ C0] RIP: 0010:native_apic_msr_write+0x39/0x50
[ 613.232727][ 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 <66> 90 eb d9 89 f6 31 d2 e8 5a dc 5b 01 5d c3 0f 1f 84 00 00 00 00
[ 613.232739][ C0] RSP: 0000:ffffc900000068f0 EFLAGS: 00000046
[ 613.232753][ C0] RAX: 000000000000003e RBX: 000000000000003e RCX: 0000000000000838
[ 613.232764][ C0] RDX: 0000000000000000 RSI: 000000000000003e RDI: 0000000000000838
[ 613.232773][ C0] RBP: ffffc900000068f0 R08: ffff88811685e540 R09: 0000000000000002
[ 613.232783][ C0] R10: 0000000000000000 R11: ffffffff8134c5d0 R12: 0000000000000020
[ 613.232792][ C0] R13: dffffc0000000000 R14: ffffffff866d4b60 R15: dffffc0000000000
[ 613.232803][ C0] FS: 0000555586a17500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[ 613.232816][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 613.232834][ C0] CR2: 00000000000008a7 CR3: 000000010ef85000 CR4: 00000000003506b0
[ 613.232849][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 613.232857][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 613.232867][ C0] Call Trace:
[ 613.232871][ C0]
[ 613.232876][ C0] lapic_next_event+0x70/0x80
[ 613.232894][ C0] clockevents_program_event+0x1d9/0x330
[ 613.232910][ C0] tick_program_event+0xa3/0x120
[ 613.232927][ C0] hrtimer_interrupt+0x501/0x8c0
[ 613.232950][ C0] __sysvec_apic_timer_interrupt+0x11e/0x440
[ 613.232969][ C0] sysvec_apic_timer_interrupt+0x53/0xc0
[ 613.232987][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 613.233006][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60
[ 613.233027][ C0] Code: 89 fb e8 23 00 00 00 48 8b 3d bc 6b 21 06 48 89 de e8 84 a3 44 00 5b 5d c3 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 <55> 48 89 e5 48 8b 45 08 65 48 8b 0d b0 fe 90 7e 65 8b 15 b1 fe 90
[ 613.233037][ C0] RSP: 0000:ffffc90000006bc8 EFLAGS: 00000287
[ 613.233049][ C0] RAX: ffffffff81b6e52e RBX: ffffffff87bc6348 RCX: 0000000000000100
[ 613.233058][ C0] RDX: ffff88811685e540 RSI: 00000000000000aa RDI: 00000000000000aa
[ 613.233068][ C0] RBP: ffffc90000006c30 R08: ffffffff87bcb5c7 R09: 1ffffffff0f796b8
[ 613.233078][ C0] R10: dffffc0000000000 R11: fffffbfff0f796b9 R12: 1ffffffff0f78c6f
[ 613.233088][ C0] R13: ffff8881f71cae6a R14: 00000000000000aa R15: ffff8881f71cb000
[ 613.233099][ C0] ? kfence_guarded_free+0x38e/0x7b0
[ 613.233118][ C0] ? kfence_guarded_free+0x3a8/0x7b0
[ 613.233133][ C0] __kfence_free+0x115/0x180
[ 613.233149][ C0] __slab_free+0x45/0x280
[ 613.233166][ C0] ? slab_free_freelist_hook+0x5b/0x190
[ 613.233186][ C0] ? kfree_skbmem+0x10c/0x180
[ 613.233205][ C0] kmem_cache_free+0x23a/0x300
[ 613.233230][ C0] kfree_skbmem+0x10c/0x180
[ 613.233247][ C0] consume_skb+0xb3/0x1f0
[ 613.233265][ C0] packet_rcv+0x151/0x1390
[ 613.233283][ C0] ? __cfi_packet_rcv+0x10/0x10
[ 613.233299][ C0] dev_queue_xmit_nit+0xa1f/0xab0
[ 613.233316][ C0] dev_hard_start_xmit+0x16a/0x750
[ 613.233334][ C0] ? sch_direct_xmit+0x262/0x900
[ 613.233354][ C0] sch_direct_xmit+0x27a/0x900
[ 613.233372][ C0] ? irqentry_exit+0x37/0x40
[ 613.233389][ C0] ? sysvec_irq_work+0x61/0xc0
[ 613.233405][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 613.233421][ C0] ? __cfi_sch_direct_xmit+0x10/0x10
[ 613.233441][ C0] __dev_queue_xmit+0x1638/0x3470
[ 613.233468][ C0] ? __dev_queue_xmit+0x258/0x3470
[ 613.233485][ C0] ? __cfi___dev_queue_xmit+0x10/0x10
[ 613.233501][ C0] ? irqtime_account_irq+0xc4/0x240
[ 613.233521][ C0] ? __irq_exit_rcu+0x5e/0xf0
[ 613.233537][ C0] ? irqentry_exit+0x37/0x40
[ 613.233553][ C0] ? sysvec_irq_work+0x61/0xc0
[ 613.233568][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 613.233587][ C0] arp_xmit+0xd0/0x1f0
[ 613.233601][ C0] ? arp_create+0x4b0/0x7f0
[ 613.233617][ C0] ? __cfi_arp_xmit+0x10/0x10
[ 613.233632][ C0] ? arp_create+0x4b0/0x7f0
[ 613.233648][ C0] arp_send_dst+0x1d3/0x280
[ 613.233664][ C0] arp_process+0x1365/0x1910
[ 613.233682][ C0] ? __cfi_arp_process+0x10/0x10
[ 613.233698][ C0] ? arp_process+0xd/0x1910
[ 613.233714][ C0] ? __cfi_arp_process+0x10/0x10
[ 613.233729][ C0] NF_HOOK+0x177/0x1d0
[ 613.233744][ C0] ? __cfi_arp_process+0x10/0x10
[ 613.233760][ C0] ? arp_xmit+0x1f0/0x1f0
[ 613.233777][ C0] arp_rcv+0x2ef/0x480
[ 613.233792][ C0] ? __cfi_arp_rcv+0x10/0x10
[ 613.233808][ C0] __netif_receive_skb_list_core+0x71e/0x780
[ 613.233835][ C0] ? set_rps_cpu+0x5e0/0x5e0
[ 613.233852][ C0] netif_receive_skb_list_internal+0x7f8/0xab0
[ 613.233872][ C0] ? __cfi_netif_receive_skb_list_internal+0x10/0x10
[ 613.233890][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 613.233907][ C0] ? napi_gro_receive+0x41a/0x880
[ 613.233924][ C0] napi_gro_receive+0x444/0x880
[ 613.233939][ C0] receive_buf+0x207b/0x4960
[ 613.233958][ C0] ? irq_work_run+0xf0/0xf0
[ 613.233975][ C0] ? virtnet_poll_tx+0x540/0x540
[ 613.233992][ C0] ? __irq_exit_rcu+0x5e/0xf0
[ 613.234006][ C0] ? irqentry_exit+0x37/0x40
[ 613.234023][ C0] ? sysvec_irq_work+0x61/0xc0
[ 613.234038][ C0] ? detach_buf_split+0x882/0xa80
[ 613.234055][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 613.234072][ C0] ? virtqueue_get_buf_ctx+0x6c1/0xcd0
[ 613.234090][ C0] virtnet_poll+0x5d3/0x1180
[ 613.234109][ C0] ? __cfi_virtnet_poll+0x10/0x10
[ 613.234126][ C0] ? __cfi_virtnet_poll+0x10/0x10
[ 613.234143][ C0] __napi_poll+0xd0/0x5e0
[ 613.234160][ C0] net_rx_action+0x4b6/0xac0
[ 613.234177][ C0] ? irqtime_account_irq+0xc4/0x240
[ 613.234196][ C0] ? __cfi_net_rx_action+0x10/0x10
[ 613.234215][ C0] handle_softirqs+0x1d7/0x600
[ 613.234231][ C0] ? irqtime_account_irq+0xc4/0x240
[ 613.234249][ C0] __irq_exit_rcu+0x52/0xf0
[ 613.234263][ C0] irq_exit_rcu+0x9/0x10
[ 613.234276][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0
[ 613.234293][ C0]
[ 613.234297][ C0]
[ 613.234302][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 613.234318][ C0] RIP: 0010:preempt_schedule_irq+0xa5/0x120
[ 613.234334][ C0] Code: 44 24 20 00 02 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 91 a2 4c fc fb bf 01 00 00 00 f6 e4 ff ff fa bf 01 00 00 00 e8 3b a4 4c fc 65 48 8b 1d 43 6b
[ 613.234345][ C0] RSP: 0000:ffffc90000197d60 EFLAGS: 00000246
[ 613.234356][ C0] RAX: 1ffff11022d0be01 RBX: ffffc90000197e28 RCX: ffffffff87b7a100
[ 613.234366][ C0] RDX: 1ffffffff0f6e400 RSI: 0000000000000000 RDI: 0000000000000001
[ 613.234375][ C0] RBP: ffffc90000197dd8 R08: ffffffff87b72008 R09: ffffffff87b72018
[ 613.234385][ C0] R10: ffffffff87b72003 R11: 1ffffffff0f6e400 R12: 0000000000000000
[ 613.234394][ C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000032fac
[ 613.234407][ C0] ? __cfi_preempt_schedule_irq+0x10/0x10
[ 613.234422][ C0] ? __cfi_sched_clock_cpu+0x10/0x10
[ 613.234438][ C0] raw_irqentry_exit_cond_resched+0x29/0x30
[ 613.234453][ C0] irqentry_exit+0x37/0x40
[ 613.234470][ C0] sysvec_apic_timer_interrupt+0x64/0xc0
[ 613.234486][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 613.234502][ C0] RIP: 0010:exit_to_user_mode_loop+0x4a/0xb0
[ 613.234518][ C0] Code: 00 e8 ca 8a 5a 00 e8 b5 27 f8 00 fa e8 ff a2 9a 03 65 48 8b 05 47 58 a2 7e 4c 8b 30 41 f7 c6 0e 30 02 00 74 5b fb 41 f6 c6 08 <74> 05 e8 df e6 9f 03 41 f7 c6 00 10 00 00 74 08 48 89 df e8 6e 95
[ 613.234528][ C0] RSP: 0000:ffffc90000197ed0 EFLAGS: 00000202
[ 613.234539][ C0] RAX: 0000000000000000 RBX: ffffc90000197f58 RCX: 934667fe02ca9000
[ 613.234549][ C0] RDX: 1ffffffff0f6e400 RSI: 0000000000000008 RDI: ffffc90000197f58
[ 613.234558][ C0] RBP: ffffc90000197ee0 R08: ffffffff87b72008 R09: ffffffff87b72018
[ 613.234568][ C0] R10: ffffffff87b72003 R11: 1ffffffff0f6e400 R12: 0000000000000000
[ 613.234578][ C0] R13: 0000000000000000 R14: 0000000000000008 R15: ffff88811685e540
[ 613.234590][ C0] exit_to_user_mode_prepare+0x87/0xd0
[ 613.234605][ C0] irqentry_exit_to_user_mode+0x9/0x10
[ 613.234622][ C0] irqentry_exit+0x12/0x40
[ 613.234638][ C0] sysvec_apic_timer_interrupt+0x64/0xc0
[ 613.234655][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 613.234671][ C0] RIP: 0033:0x7fef2733db97
[ 613.234683][ C0] Code: e8 ae 11 06 00 66 2e 0f 1f 84 00 00 00 00 00 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
[ 613.234693][ C0] RSP: 002b:00007ffdafe26980 EFLAGS: 00000246
[ 613.234704][ C0] RAX: 000000000000000f RBX: 00007fef27615fa0 RCX: 00007fef27432c91
[ 613.234713][ C0] RDX: 00007ffdafe26980 RSI: 00007ffdafe26ab0 RDI: 0000000000000011
[ 613.234723][ C0] RBP: 00007fef27432c91 R08: 0000000000000000 R09: 0000000000000000
[ 613.234732][ C0] R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
[ 613.234741][ C0] R13: 00007fef27615fac R14: 00007fef27615fa0 R15: 00007fef27615fa0
[ 613.234753][ C0]
[ 621.527901][ T29] INFO: task kworker/u4:0:8 blocked for more than 144 seconds.
[ 621.535835][ T29] Not tainted syzkaller #0
[ 621.541037][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 621.549873][ T29] task:kworker/u4:0 state:D stack:21408 pid:8 ppid:2 flags:0x00004000
[ 621.559504][ T29] Workqueue: events_unbound linkwatch_event
[ 621.565523][ T29] Call Trace:
[ 621.569056][ T29]
[ 621.571999][ T29] __schedule+0xba6/0x1500
[ 621.576812][ T29] ? __kasan_check_write+0x14/0x20
[ 621.582157][ T29] ? release_firmware_map_entry+0x190/0x190
[ 621.588553][ T29] ? kthread_data+0x50/0xc0
[ 621.593328][ T29] ? wq_worker_sleeping+0x64/0x280
[ 621.598663][ T29] schedule+0xbd/0x170
[ 621.603007][ T29] synchronize_rcu_expedited+0x773/0x880
[ 621.608943][ T29] ? __cfi_synchronize_rcu_expedited+0x10/0x10
[ 621.615189][ T29] ? unwind_next_frame+0x3d5/0x700
[ 621.620658][ T29] ? __cfi_wait_rcu_exp_gp+0x10/0x10
[ 621.626066][ T29] ? __kasan_check_write+0x14/0x20
[ 621.631460][ T29] ? __this_cpu_preempt_check+0x13/0x20
[ 621.637223][ T29] ? __cfi_autoremove_wake_function+0x10/0x10
[ 621.643532][ T29] ? _raw_spin_lock+0x94/0xf0
[ 621.648462][ T29] ? __kasan_check_read+0x11/0x20
[ 621.653603][ T29] synchronize_net+0x28/0x40
[ 621.658495][ T29] dev_deactivate_many+0x6b6/0xbc0
[ 621.663628][ T29] ? dev_deactivate_many+0x2c6/0xbc0
[ 621.669087][ T29] dev_deactivate+0x114/0x1b0
[ 621.674227][ T29] ? __cfi_dev_deactivate+0x10/0x10
[ 621.680210][ T29] ? __cfi_veth_get_iflink+0x10/0x10
[ 621.685534][ T29] ? _raw_write_unlock+0x2b/0x60
[ 621.690652][ T29] linkwatch_do_dev+0x10d/0x160
[ 621.695619][ T29] __linkwatch_run_queue+0x410/0x660
[ 621.701188][ T29] ? linkwatch_run_queue+0x20/0x20
[ 621.706414][ T29] ? __schedule+0xbae/0x1500
[ 621.711568][ T29] ? __cfi__raw_spin_lock_irq+0x10/0x10
[ 621.717321][ T29] linkwatch_event+0x4c/0x60
[ 621.722238][ T29] process_one_work+0x71f/0xc40
[ 621.727242][ T29] worker_thread+0xa29/0x11e0
[ 621.732331][ T29] kthread+0x281/0x320
[ 621.736445][ T29] ? __cfi_worker_thread+0x10/0x10
[ 621.741901][ T29] ? __cfi_kthread+0x10/0x10
[ 621.746512][ T29] ret_from_fork+0x1f/0x30
[ 621.751185][ T29]
[ 621.754275][ T29] INFO: task kworker/1:3:332 blocked for more than 144 seconds.
[ 621.762080][ T29] Not tainted syzkaller #0
[ 621.767029][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 621.776154][ T29] task:kworker/1:3 state:D stack:24448 pid:332 ppid:2 flags:0x00004000
[ 621.785952][ T29] Workqueue: ipv6_addrconf addrconf_dad_work
[ 621.792293][ T29] Call Trace:
[ 621.795599][ T29]
[ 621.799056][ T29] __schedule+0xba6/0x1500
[ 621.803501][ T29] ? release_firmware_map_entry+0x190/0x190
[ 621.809732][ T29] ? __mutex_add_waiter+0xcc/0x280
[ 621.814962][ T29] ? __kasan_check_write+0x14/0x20
[ 621.820493][ T29] ? _raw_spin_unlock_irq+0x4d/0x70
[ 621.825796][ T29] ? wq_worker_sleeping+0x1d9/0x280
[ 621.831348][ T29] schedule+0xbd/0x170
[ 621.835532][ T29] schedule_preempt_disabled+0x13/0x20
[ 621.841382][ T29] __mutex_lock+0x82f/0x1790
[ 621.846089][ T29] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20
[ 621.853203][ T29] ? sched_balance_newidle+0x92c/0xce0
[ 621.858815][ T29] ? kvm_sched_clock_read+0x18/0x40
[ 621.864391][ T29] ? sched_clock+0x9/0x10
[ 621.869188][ T29] ? sched_clock_cpu+0x6e/0x260
[ 621.874335][ T29] ? __cfi_sched_clock_cpu+0x10/0x10
[ 621.880427][ T29] ? put_prev_entity+0x3b0/0x3b0
[ 621.885484][ T29] __mutex_lock_slowpath+0xe/0x10
[ 621.890889][ T29] mutex_lock+0x10a/0x1b0
[ 621.895267][ T29] ? __cfi_mutex_lock+0x10/0x10
[ 621.900466][ T29] ? __perf_event_task_sched_in+0x1a0/0x1f0
[ 621.906464][ T29] ? __cfi___perf_event_task_sched_in+0x10/0x10
[ 621.912968][ T29] rtnl_lock+0x15/0x20
[ 621.917069][ T29] addrconf_dad_work+0xca/0x14d0
[ 621.922247][ T29] ? _raw_spin_unlock+0x4c/0x70
[ 621.927638][ T29] ? finish_task_switch+0x16b/0x7b0
[ 621.933535][ T29] ? __cfi_addrconf_dad_work+0x10/0x10
[ 621.939303][ T29] ? __schedule+0xbae/0x1500
[ 621.943905][ T29] ? __cfi__raw_spin_lock_irq+0x10/0x10
[ 621.949619][ T29] process_one_work+0x71f/0xc40
[ 621.954595][ T29] worker_thread+0xa29/0x11e0
[ 621.959518][ T29] ? _raw_spin_lock_irqsave+0xc2/0x130
[ 621.965181][ T29] ? __kthread_parkme+0x142/0x180
[ 621.970636][ T29] kthread+0x281/0x320
[ 621.974727][ T29] ? __cfi_worker_thread+0x10/0x10
[ 621.980335][ T29] ? __cfi_kthread+0x10/0x10
[ 621.985811][ T29] ret_from_fork+0x1f/0x30
[ 621.990769][ T29]
[ 621.993814][ T29] INFO: task syz-executor:367 blocked for more than 144 seconds.
[ 622.001866][ T29] Not tainted syzkaller #0
[ 622.007248][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 622.016351][ T29] task:syz-executor state:D stack:22080 pid:367 ppid:1 flags:0x00004004
[ 622.025967][ T29] Call Trace:
[ 622.029630][ T29]
[ 622.032757][ T29] __schedule+0xba6/0x1500
[ 622.037210][ T29] ? release_firmware_map_entry+0x190/0x190
[ 622.043339][ T29] ? __mutex_add_waiter+0x180/0x280
[ 622.048759][ T29] ? __kasan_check_write+0x14/0x20
[ 622.053888][ T29] ? trace_contention_begin+0xa0/0xa0
[ 622.059458][ T29] schedule+0xbd/0x170
[ 622.063548][ T29] schedule_preempt_disabled+0x13/0x20
[ 622.069361][ T29] __mutex_lock+0x82f/0x1790
[ 622.074154][ T29] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20
[ 622.081596][ T29] ? selinux_capable+0x2b6/0x3b0
[ 622.086806][ T29] ? __cfi_selinux_capable+0x10/0x10
[ 622.092569][ T29] ? 0xffffffffa00009d0
[ 622.096835][ T29] ? is_bpf_text_address+0x177/0x190
[ 622.102455][ T29] ? cap_capable+0x1aa/0x230
[ 622.107254][ T29] __mutex_lock_slowpath+0xe/0x10
[ 622.112876][ T29] mutex_lock+0x10a/0x1b0
[ 622.117312][ T29] ? __cfi_mutex_lock+0x10/0x10
[ 622.122433][ T29] ? ns_capable+0x8c/0xf0
[ 622.126798][ T29] ? netlink_net_capable+0x125/0x160
[ 622.132322][ T29] rtnetlink_rcv_msg+0x9fc/0xe00
[ 622.137295][ T29] ? __cfi_rtnetlink_rcv_msg+0x10/0x10
[ 622.143195][ T29] ? kernel_text_address+0xa0/0xd0
[ 622.148528][ T29] ? __kernel_text_address+0xd/0x30
[ 622.155183][ T29] ? avc_has_perm_noaudit+0x391/0x490
[ 622.161365][ T29] ? memcpy+0x56/0x70
[ 622.165992][ T29] ? avc_has_perm_noaudit+0x30b/0x490
[ 622.171876][ T29] ? __cfi_avc_has_perm_noaudit+0x10/0x10
[ 622.178144][ T29] ? slab_post_alloc_hook+0x4f/0x2d0
[ 622.183982][ T29] ? avc_has_perm+0x163/0x250
[ 622.188849][ T29] ? __alloc_skb+0x236/0x4b0
[ 622.193820][ T29] ? netlink_sendmsg+0x635/0xbd0
[ 622.199858][ T29] ? __sys_sendto+0x4ac/0x660
[ 622.204610][ T29] ? __cfi_avc_has_perm+0x10/0x10
[ 622.209874][ T29] ? selinux_nlmsg_lookup+0x400/0x4c0
[ 622.215271][ T29] netlink_rcv_skb+0x20f/0x460
[ 622.220210][ T29] ? __cfi_rtnetlink_rcv_msg+0x10/0x10
[ 622.225828][ T29] ? __cfi_netlink_rcv_skb+0x10/0x10
[ 622.231480][ T29] ? __netlink_lookup+0x387/0x3b0
[ 622.237139][ T29] rtnetlink_rcv+0x1c/0x20
[ 622.242427][ T29] netlink_unicast+0x8ab/0xa30
[ 622.247503][ T29] netlink_sendmsg+0x8b9/0xbd0
[ 622.252676][ T29] ? __cfi_netlink_sendmsg+0x10/0x10
[ 622.258566][ T29] ? security_socket_sendmsg+0x93/0xb0
[ 622.264150][ T29] __sys_sendto+0x4ac/0x660
[ 622.269051][ T29] ? __cfi___sys_sendto+0x10/0x10
[ 622.274317][ T29] ? blkcg_maybe_throttle_current+0x1e0/0xa20
[ 622.281132][ T29] ? __cfi_blkcg_maybe_throttle_current+0x10/0x10
[ 622.287668][ T29] ? fput+0x15b/0x1a0
[ 622.291892][ T29] __x64_sys_sendto+0xe5/0x100
[ 622.296691][ T29] x64_sys_call+0x83/0x9a0
[ 622.301406][ T29] do_syscall_64+0x4c/0xa0
[ 622.305847][ T29] ? clear_bhb_loop+0x30/0x80
[ 622.310782][ T29] ? clear_bhb_loop+0x30/0x80
[ 622.315826][ T29] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 622.321944][ T29] RIP: 0033:0x7fd432557997
[ 622.326377][ T29] RSP: 002b:00007ffcfe9c6220 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 622.335142][ T29] RAX: ffffffffffffffda RBX: 0000555571557500 RCX: 00007fd432557997
[ 622.343758][ T29] RDX: 0000000000000028 RSI: 00007fd433344670 RDI: 0000000000000003
[ 622.352121][ T29] RBP: 0000000000000001 R08: 00007ffcfe9c6284 R09: 000000000000000c
[ 622.360498][ T29] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
[ 622.368827][ T29] R13: 0000000000000000 R14: 00007fd433344670 R15: 0000000000000000
[ 622.377106][ T29]
[ 622.380314][ T29] NMI backtrace for cpu 1
[ 622.384662][ T29] CPU: 1 PID: 29 Comm: khungtaskd Not tainted syzkaller #0
[ 622.391958][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 622.402462][ T29] Call Trace:
[ 622.405853][ T29]
[ 622.409159][ T29] __dump_stack+0x21/0x24
[ 622.413605][ T29] dump_stack_lvl+0x110/0x170
[ 622.418398][ T29] ? __cfi_dump_stack_lvl+0x8/0x8
[ 622.423631][ T29] dump_stack+0x15/0x24
[ 622.427890][ T29] nmi_cpu_backtrace+0x2af/0x2c0
[ 622.433408][ T29] ? rcu_read_unlock_special+0xb2/0x440
[ 622.439071][ T29] ? __cfi_nmi_cpu_backtrace+0x10/0x10
[ 622.444572][ T29] ? nmi_trigger_cpumask_backtrace+0xf6/0x3a0
[ 622.450828][ T29] ? __cfi_nmi_raise_cpu_backtrace+0x10/0x10
[ 622.457106][ T29] ? __cfi_nmi_raise_cpu_backtrace+0x10/0x10
[ 622.463275][ T29] nmi_trigger_cpumask_backtrace+0x16b/0x3a0
[ 622.469367][ T29] arch_trigger_cpumask_backtrace+0x10/0x20
[ 622.475543][ T29] watchdog+0xd68/0xeb0
[ 622.479972][ T29] ? __cfi_watchdog+0x10/0x10
[ 622.484846][ T29] ? __kasan_check_read+0x11/0x20
[ 622.490088][ T29] ? __kthread_parkme+0x142/0x180
[ 622.495217][ T29] kthread+0x281/0x320
[ 622.499396][ T29] ? __cfi_watchdog+0x10/0x10
[ 622.504196][ T29] ? __cfi_kthread+0x10/0x10
[ 622.509006][ T29] ret_from_fork+0x1f/0x30
[ 622.513451][ T29]
[ 622.516611][ T29] Sending NMI from CPU 1 to CPUs 0:
[ 622.521942][ C0] NMI backtrace for cpu 0
[ 622.521953][ C0] CPU: 0 PID: 365 Comm: syz.2.18 Not tainted syzkaller #0
[ 622.521969][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 622.521977][ C0] RIP: 0010:unwind_next_frame+0x1e/0x700
[ 622.522054][ C0] Code: 90 90 90 90 90 90 90 b8 b1 d2 a0 0a 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 48 48 89 fb 48 ba 00 00 00 00 00 fc ff df <49> 89 fe 49 c1 ee 03 41 0f b6 04 16 84 c0 0f 85 07 06 00 00 83 3b
[ 622.522065][ C0] RSP: 0000:ffffc90000005f80 EFLAGS: 00000082
[ 622.522077][ C0] RAX: 0000000000000000 RBX: ffffc90000006060 RCX: 0000000000000005
[ 622.522087][ C0] RDX: dffffc0000000000 RSI: 000000000000007f RDI: ffffc90000006060
[ 622.522097][ C0] RBP: ffffc90000005ff0 R08: ffffc90000006000 R09: ffffc90000006060
[ 622.522108][ C0] R10: dffffc0000000000 R11: fffff52000000c18 R12: ffffc9000000618c
[ 622.522119][ C0] R13: dffffc0000000000 R14: ffffffff817da842 R15: 1ffff92000000c31
[ 622.522130][ C0] FS: 0000555586a17500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[ 622.522143][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 622.522153][ C0] CR2: 00000000000008a7 CR3: 000000010ef85000 CR4: 00000000003506b0
[ 622.522175][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 622.522184][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 622.522213][ C0] Call Trace:
[ 622.522218][ C0]
[ 622.522225][ C0] ? do_bpf_send_signal+0x82/0x150
[ 622.522252][ C0] ? __kernel_text_address+0xd/0x30
[ 622.522271][ C0] ? do_bpf_send_signal+0x82/0x150
[ 622.522291][ C0] perf_callchain_kernel+0x414/0x6c0
[ 622.522313][ C0] ? __cfi_perf_callchain_kernel+0x10/0x10
[ 622.522334][ C0] ? do_bpf_send_signal+0x82/0x150
[ 622.522354][ C0] ? debug_smp_processor_id+0x17/0x20
[ 622.522374][ C0] ? get_callchain_entry+0x170/0x380
[ 622.522395][ C0] get_perf_callchain+0x236/0x490
[ 622.522414][ C0] ? __cfi_get_perf_callchain+0x10/0x10
[ 622.522434][ C0] ? kvm_guest_state+0xbb/0xf0
[ 622.522455][ C0] perf_prepare_sample+0x399/0x1d40
[ 622.522472][ C0] ? __cfi_perf_output_begin_forward+0x10/0x10
[ 622.522491][ C0] ? __cfi_perf_prepare_sample+0x10/0x10
[ 622.522509][ C0] perf_event_output_forward+0xd1/0x1a0
[ 622.522525][ C0] ? __cfi_perf_event_output_forward+0x10/0x10
[ 622.522543][ C0] ? __kasan_check_write+0x14/0x20
[ 622.522557][ C0] ? llist_add_batch+0x12b/0x180
[ 622.522573][ C0] ? __this_cpu_preempt_check+0x13/0x20
[ 622.522600][ C0] ? __perf_event_account_interrupt+0x1a4/0x2c0
[ 622.522619][ C0] __perf_event_overflow+0x437/0x620
[ 622.522637][ C0] perf_swevent_event+0x2f7/0x530
[ 622.522656][ C0] perf_tp_event+0x75b/0xa20
[ 622.522674][ C0] ? __cfi_perf_tp_event+0x10/0x10
[ 622.522692][ C0] ? __send_signal_locked+0xb1f/0xb70
[ 622.522819][ C0] ? __perf_event_account_interrupt+0x1a4/0x2c0
[ 622.522839][ C0] ? hrtimer_forward+0x18f/0x2a0
[ 622.522858][ C0] ? perf_swevent_hrtimer+0x4a5/0x5b0
[ 622.522876][ C0] ? __cfi_raise_softirq+0x10/0x10
[ 622.522892][ C0] perf_trace_run_bpf_submit+0xf3/0x1c0
[ 622.522911][ C0] perf_trace_signal_generate+0x41b/0x5d0
[ 622.522929][ C0] ? __cfi_perf_trace_signal_generate+0x10/0x10
[ 622.522947][ C0] __send_signal_locked+0xb1f/0xb70
[ 622.522964][ C0] ? _raw_spin_lock_irqsave+0xc2/0x130
[ 622.522979][ C0] ? __cfi__raw_spin_lock_irqsave+0x10/0x10
[ 622.522994][ C0] send_signal_locked+0x422/0x580
[ 622.523012][ C0] do_send_sig_info+0xd6/0x210
[ 622.523029][ C0] group_send_sig_info+0x118/0x2e0
[ 622.523046][ C0] ? __cfi_group_send_sig_info+0x10/0x10
[ 622.523064][ C0] ? tick_program_event+0xa3/0x120
[ 622.523082][ C0] do_bpf_send_signal+0x82/0x150
[ 622.523102][ C0] irq_work_run_list+0x197/0x2b0
[ 622.523120][ C0] ? irq_work_run+0xf0/0xf0
[ 622.523137][ C0] irq_work_run+0x6a/0xf0
[ 622.523153][ C0] __sysvec_irq_work+0x75/0x1c0
[ 622.523186][ C0] sysvec_irq_work+0x50/0xc0
[ 622.523202][ C0] asm_sysvec_irq_work+0x1b/0x20
[ 622.523219][ C0] RIP: 0010:virtqueue_get_buf_ctx+0x0/0xcd0
[ 622.523237][ C0] Code: 89 f7 e8 13 e6 fc fe e9 8f fd ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 b8 9c a1 38 69 <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 58 49 89 d5 48 89
[ 622.523248][ C0] RSP: 0000:ffffc90000006d18 EFLAGS: 00000246
[ 622.523260][ C0] RAX: ffffffff82b9f242 RBX: ffffc90000006d80 RCX: ffff88811685e540
[ 622.523271][ C0] RDX: 0000000000000000 RSI: ffffc90000006d80 RDI: ffff88810d427800
[ 622.523281][ C0] RBP: ffffc90000006d30 R08: ffffffff87bcb3b7 R09: 1ffffffff0f79676
[ 622.523291][ C0] R10: dffffc0000000000 R11: fffffbfff0f79677 R12: 000000000000002a
[ 622.523301][ C0] R13: ffff8881f71aaf00 R14: ffff88810d427800 R15: 0000000000000001
[ 622.523312][ C0] ? virtqueue_get_buf+0x12/0x30
[ 622.523329][ C0] ? virtqueue_get_buf+0x1f/0x30
[ 622.523344][ C0] free_old_xmit_skbs+0x13b/0x280
[ 622.523369][ C0] ? kfree_skbmem+0x10c/0x180
[ 622.523394][ C0] ? virtqueue_napi_schedule+0x40/0x40
[ 622.523410][ C0] ? packet_rcv+0x151/0x1390
[ 622.523426][ C0] ? virtqueue_disable_cb+0x141/0x390
[ 622.523442][ C0] start_xmit+0x172/0x15e0
[ 622.523457][ C0] ? __cfi_packet_rcv+0x10/0x10
[ 622.523475][ C0] dev_hard_start_xmit+0x20b/0x750
[ 622.523496][ C0] sch_direct_xmit+0x27a/0x900
[ 622.523516][ C0] ? __irq_exit_rcu+0x5e/0xf0
[ 622.523531][ C0] ? irqentry_exit+0x37/0x40
[ 622.523548][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 622.523566][ C0] ? __cfi_sch_direct_xmit+0x10/0x10
[ 622.523586][ C0] __dev_queue_xmit+0x1638/0x3470
[ 622.523605][ C0] ? __dev_queue_xmit+0x258/0x3470
[ 622.523623][ C0] ? __cfi___dev_queue_xmit+0x10/0x10
[ 622.523640][ C0] ? debug_smp_processor_id+0x17/0x20
[ 622.523659][ C0] ? irqtime_account_irq+0xc4/0x240
[ 622.523680][ C0] ? __irq_exit_rcu+0x5e/0xf0
[ 622.523694][ C0] ? irqentry_exit+0x37/0x40
[ 622.523718][ C0] ? sysvec_irq_work+0x61/0xc0
[ 622.523733][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 622.523752][ C0] arp_xmit+0xd0/0x1f0
[ 622.523768][ C0] ? irqentry_exit+0x37/0x40
[ 622.523786][ C0] ? __cfi_arp_xmit+0x10/0x10
[ 622.523801][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 622.523819][ C0] arp_send_dst+0x1d3/0x280
[ 622.523835][ C0] arp_process+0x1365/0x1910
[ 622.523853][ C0] ? __cfi_arp_process+0x10/0x10
[ 622.523869][ C0] ? __cfi_arp_process+0x10/0x10
[ 622.523896][ C0] ? __cfi_arp_process+0x10/0x10
[ 622.523912][ C0] NF_HOOK+0x177/0x1d0
[ 622.523927][ C0] ? __cfi_arp_process+0x10/0x10
[ 622.523943][ C0] ? arp_xmit+0x1f0/0x1f0
[ 622.523957][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 622.523976][ C0] arp_rcv+0x2ef/0x480
[ 622.523992][ C0] ? __cfi_arp_rcv+0x10/0x10
[ 622.524008][ C0] __netif_receive_skb_list_core+0x71e/0x780
[ 622.524028][ C0] ? set_rps_cpu+0x5e0/0x5e0
[ 622.524045][ C0] netif_receive_skb_list_internal+0x7f8/0xab0
[ 622.524066][ C0] ? __cfi_netif_receive_skb_list_internal+0x10/0x10
[ 622.524084][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 622.524101][ C0] ? napi_gro_receive+0x41a/0x880
[ 622.524118][ C0] napi_gro_receive+0x444/0x880
[ 622.524133][ C0] receive_buf+0x207b/0x4960
[ 622.524151][ C0] ? irq_work_run+0xf0/0xf0
[ 622.524169][ C0] ? virtnet_poll_tx+0x540/0x540
[ 622.524187][ C0] ? __irq_exit_rcu+0x5e/0xf0
[ 622.524201][ C0] ? irqentry_exit+0x37/0x40
[ 622.524218][ C0] ? sysvec_irq_work+0x61/0xc0
[ 622.524233][ C0] ? detach_buf_split+0x882/0xa80
[ 622.524249][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 622.524268][ C0] ? virtqueue_get_buf_ctx+0x6c1/0xcd0
[ 622.524285][ C0] virtnet_poll+0x5d3/0x1180
[ 622.524305][ C0] ? __cfi_virtnet_poll+0x10/0x10
[ 622.524322][ C0] ? __cfi_virtnet_poll+0x10/0x10
[ 622.524340][ C0] __napi_poll+0xd0/0x5e0
[ 622.524357][ C0] net_rx_action+0x4b6/0xac0
[ 622.524374][ C0] ? irqtime_account_irq+0xc4/0x240
[ 622.524394][ C0] ? __cfi_net_rx_action+0x10/0x10
[ 622.524414][ C0] handle_softirqs+0x1d7/0x600
[ 622.524429][ C0] ? irqtime_account_irq+0xc4/0x240
[ 622.524448][ C0] __irq_exit_rcu+0x52/0xf0
[ 622.524461][ C0] irq_exit_rcu+0x9/0x10
[ 622.524475][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0
[ 622.524493][ C0]
[ 622.524497][ C0]
[ 622.524502][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 622.524518][ C0] RIP: 0010:preempt_schedule_irq+0xa5/0x120
[ 622.524535][ C0] Code: 44 24 20 00 02 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 91 a2 4c fc fb bf 01 00 00 00 f6 e4 ff ff fa bf 01 00 00 00 e8 3b a4 4c fc 65 48 8b 1d 43 6b
[ 622.524545][ C0] RSP: 0000:ffffc90000197d60 EFLAGS: 00000246
[ 622.524557][ C0] RAX: 1ffff11022d0be01 RBX: ffffc90000197e28 RCX: ffffffff87b7a100
[ 622.524567][ C0] RDX: 1ffffffff0f6e400 RSI: 0000000000000000 RDI: 0000000000000001
[ 622.524576][ C0] RBP: ffffc90000197dd8 R08: ffffffff87b72008 R09: ffffffff87b72018
[ 622.524586][ C0] R10: ffffffff87b72003 R11: 1ffffffff0f6e400 R12: 0000000000000000
[ 622.524595][ C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000032fac
[ 622.524608][ C0] ? __cfi_preempt_schedule_irq+0x10/0x10
[ 622.524623][ C0] ? __cfi_sched_clock_cpu+0x10/0x10
[ 622.524639][ C0] raw_irqentry_exit_cond_resched+0x29/0x30
[ 622.524655][ C0] irqentry_exit+0x37/0x40
[ 622.524671][ C0] sysvec_apic_timer_interrupt+0x64/0xc0
[ 622.524688][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 622.524712][ C0] RIP: 0010:exit_to_user_mode_loop+0x4a/0xb0
[ 622.524728][ C0] Code: 00 e8 ca 8a 5a 00 e8 b5 27 f8 00 fa e8 ff a2 9a 03 65 48 8b 05 47 58 a2 7e 4c 8b 30 41 f7 c6 0e 30 02 00 74 5b fb 41 f6 c6 08 <74> 05 e8 df e6 9f 03 41 f7 c6 00 10 00 00 74 08 48 89 df e8 6e 95
[ 622.524738][ C0] RSP: 0000:ffffc90000197ed0 EFLAGS: 00000202
[ 622.524748][ C0] RAX: 0000000000000000 RBX: ffffc90000197f58 RCX: 934667fe02ca9000
[ 622.524758][ C0] RDX: 1ffffffff0f6e400 RSI: 0000000000000008 RDI: ffffc90000197f58
[ 622.524768][ C0] RBP: ffffc90000197ee0 R08: ffffffff87b72008 R09: ffffffff87b72018
[ 622.524778][ C0] R10: ffffffff87b72003 R11: 1ffffffff0f6e400 R12: 0000000000000000
[ 622.524787][ C0] R13: 0000000000000000 R14: 0000000000000008 R15: ffff88811685e540
[ 622.524799][ C0] exit_to_user_mode_prepare+0x87/0xd0
[ 622.524815][ C0] irqentry_exit_to_user_mode+0x9/0x10
[ 622.524832][ C0] irqentry_exit+0x12/0x40
[ 622.524848][ C0] sysvec_apic_timer_interrupt+0x64/0xc0
[ 622.524866][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 622.524882][ C0] RIP: 0033:0x7fef2733db97
[ 622.524898][ C0] Code: e8 ae 11 06 00 66 2e 0f 1f 84 00 00 00 00 00 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
[ 622.524909][ C0] RSP: 002b:00007ffdafe26980 EFLAGS: 00000246
[ 622.524921][ C0] RAX: 000000000000000f RBX: 00007fef27615fa0 RCX: 00007fef27432c91
[ 622.524931][ C0] RDX: 00007ffdafe26980 RSI: 00007ffdafe26ab0 RDI: 0000000000000011
[ 622.524942][ C0] RBP: 00007fef27432c91 R08: 0000000000000000 R09: 0000000000000000
[ 622.524951][ C0] R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
[ 622.524961][ C0] R13: 00007fef27615fac R14: 00007fef27615fa0 R15: 00007fef27615fa0
[ 622.524974][ C0]
[ 643.928312][ T29] INFO: task kworker/u4:0:8 blocked for more than 166 seconds.
[ 643.935926][ T29] Not tainted syzkaller #0
[ 643.941539][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 643.950505][ T29] task:kworker/u4:0 state:D stack:21408 pid:8 ppid:2 flags:0x00004000
[ 643.960365][ T29] Workqueue: events_unbound linkwatch_event
[ 643.966566][ T29] Call Trace:
[ 643.970194][ T29]
[ 643.973141][ T29] __schedule+0xba6/0x1500
[ 643.977752][ T29] ? __kasan_check_write+0x14/0x20
[ 643.983793][ T29] ? release_firmware_map_entry+0x190/0x190
[ 643.990164][ T29] ? kthread_data+0x50/0xc0
[ 643.994728][ T29] ? wq_worker_sleeping+0x64/0x280
[ 644.000027][ T29] schedule+0xbd/0x170
[ 644.004143][ T29] synchronize_rcu_expedited+0x773/0x880
[ 644.010070][ T29] ? __cfi_synchronize_rcu_expedited+0x10/0x10
[ 644.016241][ T29] ? unwind_next_frame+0x3d5/0x700
[ 644.021609][ T29] ? __cfi_wait_rcu_exp_gp+0x10/0x10
[ 644.026965][ T29] ? __kasan_check_write+0x14/0x20
[ 644.032334][ T29] ? __this_cpu_preempt_check+0x13/0x20
[ 644.038371][ T29] ? __cfi_autoremove_wake_function+0x10/0x10
[ 644.044456][ T29] ? _raw_spin_lock+0x94/0xf0
[ 644.049305][ T29] ? __kasan_check_read+0x11/0x20
[ 644.054501][ T29] synchronize_net+0x28/0x40
[ 644.059450][ T29] dev_deactivate_many+0x6b6/0xbc0
[ 644.064586][ T29] ? dev_deactivate_many+0x2c6/0xbc0
[ 644.070127][ T29] dev_deactivate+0x114/0x1b0
[ 644.074911][ T29] ? __cfi_dev_deactivate+0x10/0x10
[ 644.080446][ T29] ? __cfi_veth_get_iflink+0x10/0x10
[ 644.085755][ T29] ? _raw_write_unlock+0x2b/0x60
[ 644.090894][ T29] linkwatch_do_dev+0x10d/0x160
[ 644.095770][ T29] __linkwatch_run_queue+0x410/0x660
[ 644.101319][ T29] ? linkwatch_run_queue+0x20/0x20
[ 644.106541][ T29] ? __schedule+0xbae/0x1500
[ 644.111418][ T29] ? __cfi__raw_spin_lock_irq+0x10/0x10
[ 644.117009][ T29] linkwatch_event+0x4c/0x60
[ 644.121756][ T29] process_one_work+0x71f/0xc40
[ 644.126627][ T29] worker_thread+0xa29/0x11e0
[ 644.131490][ T29] kthread+0x281/0x320
[ 644.135752][ T29] ? __cfi_worker_thread+0x10/0x10
[ 644.141159][ T29] ? __cfi_kthread+0x10/0x10
[ 644.145785][ T29] ret_from_fork+0x1f/0x30
[ 644.150794][ T29]
[ 644.153864][ T29] INFO: task kworker/1:3:332 blocked for more than 166 seconds.
[ 644.161657][ T29] Not tainted syzkaller #0
[ 644.166997][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 644.176060][ T29] task:kworker/1:3 state:D stack:24448 pid:332 ppid:2 flags:0x00004000
[ 644.185482][ T29] Workqueue: ipv6_addrconf addrconf_dad_work
[ 644.191959][ T29] Call Trace:
[ 644.195259][ T29]
[ 644.198373][ T29] __schedule+0xba6/0x1500
[ 644.202816][ T29] ? release_firmware_map_entry+0x190/0x190
[ 644.209015][ T29] ? __mutex_add_waiter+0xcc/0x280
[ 644.214157][ T29] ? __kasan_check_write+0x14/0x20
[ 644.219478][ T29] ? _raw_spin_unlock_irq+0x4d/0x70
[ 644.224699][ T29] ? wq_worker_sleeping+0x1d9/0x280
[ 644.230182][ T29] schedule+0xbd/0x170
[ 644.234275][ T29] schedule_preempt_disabled+0x13/0x20
[ 644.240036][ T29] __mutex_lock+0x82f/0x1790
[ 644.244747][ T29] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20
[ 644.251677][ T29] ? sched_balance_newidle+0x92c/0xce0
[ 644.257422][ T29] ? kvm_sched_clock_read+0x18/0x40
[ 644.262997][ T29] ? sched_clock+0x9/0x10
[ 644.267348][ T29] ? sched_clock_cpu+0x6e/0x260
[ 644.272410][ T29] ? __cfi_sched_clock_cpu+0x10/0x10
[ 644.277804][ T29] ? put_prev_entity+0x3b0/0x3b0
[ 644.283078][ T29] __mutex_lock_slowpath+0xe/0x10
[ 644.288236][ T29] mutex_lock+0x10a/0x1b0
[ 644.292585][ T29] ? __cfi_mutex_lock+0x10/0x10
[ 644.297533][ T29] ? __perf_event_task_sched_in+0x1a0/0x1f0
[ 644.303875][ T29] ? __cfi___perf_event_task_sched_in+0x10/0x10
[ 644.310438][ T29] rtnl_lock+0x15/0x20
[ 644.314700][ T29] addrconf_dad_work+0xca/0x14d0
[ 644.319892][ T29] ? _raw_spin_unlock+0x4c/0x70
[ 644.324944][ T29] ? finish_task_switch+0x16b/0x7b0
[ 644.330668][ T29] ? __cfi_addrconf_dad_work+0x10/0x10
[ 644.336234][ T29] ? __schedule+0xbae/0x1500
[ 644.340984][ T29] ? __cfi__raw_spin_lock_irq+0x10/0x10
[ 644.346548][ T29] process_one_work+0x71f/0xc40
[ 644.351575][ T29] worker_thread+0xa29/0x11e0
[ 644.356486][ T29] ? _raw_spin_lock_irqsave+0xc2/0x130
[ 644.362160][ T29] ? __kthread_parkme+0x142/0x180
[ 644.367312][ T29] kthread+0x281/0x320
[ 644.371929][ T29] ? __cfi_worker_thread+0x10/0x10
[ 644.377065][ T29] ? __cfi_kthread+0x10/0x10
[ 644.381959][ T29] ret_from_fork+0x1f/0x30
[ 644.386501][ T29]
[ 644.390264][ T29] INFO: task syz-executor:367 blocked for more than 166 seconds.
[ 644.398556][ T29] Not tainted syzkaller #0
[ 644.403602][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 644.412637][ T29] task:syz-executor state:D stack:22080 pid:367 ppid:1 flags:0x00004004
[ 644.422282][ T29] Call Trace:
[ 644.425619][ T29]
[ 644.428915][ T29] __schedule+0xba6/0x1500
[ 644.433707][ T29] ? release_firmware_map_entry+0x190/0x190
[ 644.440300][ T29] ? __mutex_add_waiter+0x180/0x280
[ 644.445700][ T29] ? __kasan_check_write+0x14/0x20
[ 644.451571][ T29] ? trace_contention_begin+0xa0/0xa0
[ 644.457013][ T29] schedule+0xbd/0x170
[ 644.461546][ T29] schedule_preempt_disabled+0x13/0x20
[ 644.467118][ T29] __mutex_lock+0x82f/0x1790
[ 644.472105][ T29] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20
[ 644.479179][ T29] ? selinux_capable+0x2b6/0x3b0
[ 644.484603][ T29] ? __cfi_selinux_capable+0x10/0x10
[ 644.490453][ T29] ? 0xffffffffa00009d0
[ 644.494990][ T29] ? is_bpf_text_address+0x177/0x190
[ 644.500759][ T29] ? cap_capable+0x1aa/0x230
[ 644.505637][ T29] __mutex_lock_slowpath+0xe/0x10
[ 644.511270][ T29] mutex_lock+0x10a/0x1b0
[ 644.515619][ T29] ? __cfi_mutex_lock+0x10/0x10
[ 644.520867][ T29] ? ns_capable+0x8c/0xf0
[ 644.525217][ T29] ? netlink_net_capable+0x125/0x160
[ 644.530711][ T29] rtnetlink_rcv_msg+0x9fc/0xe00
[ 644.535763][ T29] ? __cfi_rtnetlink_rcv_msg+0x10/0x10
[ 644.541574][ T29] ? kernel_text_address+0xa0/0xd0
[ 644.546993][ T29] ? __kernel_text_address+0xd/0x30
[ 644.552488][ T29] ? avc_has_perm_noaudit+0x391/0x490
[ 644.558245][ T29] ? memcpy+0x56/0x70
[ 644.562247][ T29] ? avc_has_perm_noaudit+0x30b/0x490
[ 644.567646][ T29] ? __cfi_avc_has_perm_noaudit+0x10/0x10
[ 644.573565][ T29] ? slab_post_alloc_hook+0x4f/0x2d0
[ 644.579076][ T29] ? avc_has_perm+0x163/0x250
[ 644.583777][ T29] ? __alloc_skb+0x236/0x4b0
[ 644.588720][ T29] ? netlink_sendmsg+0x635/0xbd0
[ 644.594086][ T29] ? __sys_sendto+0x4ac/0x660
[ 644.598952][ T29] ? __cfi_avc_has_perm+0x10/0x10
[ 644.604159][ T29] ? selinux_nlmsg_lookup+0x400/0x4c0
[ 644.609910][ T29] netlink_rcv_skb+0x20f/0x460
[ 644.614913][ T29] ? __cfi_rtnetlink_rcv_msg+0x10/0x10
[ 644.620852][ T29] ? __cfi_netlink_rcv_skb+0x10/0x10
[ 644.626247][ T29] ? __netlink_lookup+0x387/0x3b0
[ 644.631520][ T29] rtnetlink_rcv+0x1c/0x20
[ 644.636473][ T29] netlink_unicast+0x8ab/0xa30
[ 644.641789][ T29] netlink_sendmsg+0x8b9/0xbd0
[ 644.646718][ T29] ? __cfi_netlink_sendmsg+0x10/0x10
[ 644.652400][ T29] ? security_socket_sendmsg+0x93/0xb0
[ 644.658048][ T29] __sys_sendto+0x4ac/0x660
[ 644.662676][ T29] ? __cfi___sys_sendto+0x10/0x10
[ 644.667811][ T29] ? blkcg_maybe_throttle_current+0x1e0/0xa20
[ 644.674457][ T29] ? __cfi_blkcg_maybe_throttle_current+0x10/0x10
[ 644.681218][ T29] ? fput+0x15b/0x1a0
[ 644.685490][ T29] __x64_sys_sendto+0xe5/0x100
[ 644.690509][ T29] x64_sys_call+0x83/0x9a0
[ 644.695031][ T29] do_syscall_64+0x4c/0xa0
[ 644.699594][ T29] ? clear_bhb_loop+0x30/0x80
[ 644.704288][ T29] ? clear_bhb_loop+0x30/0x80
[ 644.709589][ T29] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 644.715944][ T29] RIP: 0033:0x7fd432557997
[ 644.720728][ T29] RSP: 002b:00007ffcfe9c6220 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 644.730053][ T29] RAX: ffffffffffffffda RBX: 0000555571557500 RCX: 00007fd432557997
[ 644.738662][ T29] RDX: 0000000000000028 RSI: 00007fd433344670 RDI: 0000000000000003
[ 644.747286][ T29] RBP: 0000000000000001 R08: 00007ffcfe9c6284 R09: 000000000000000c
[ 644.756002][ T29] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
[ 644.764711][ T29] R13: 0000000000000000 R14: 00007fd433344670 R15: 0000000000000000
[ 644.773103][ T29]
[ 644.776233][ T29] INFO: task syz-executor:372 blocked for more than 126 seconds.
[ 644.784597][ T29] Not tainted syzkaller #0
[ 644.789729][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 644.798895][ T29] task:syz-executor state:D stack:26912 pid:372 ppid:1 flags:0x00004004
[ 644.808316][ T29] Call Trace:
[ 644.811623][ T29]
[ 644.814564][ T29] __schedule+0xba6/0x1500
[ 644.819233][ T29] ? release_firmware_map_entry+0x190/0x190
[ 644.825330][ T29] ? __mutex_add_waiter+0xcc/0x280
[ 644.830930][ T29] ? __kasan_check_write+0x14/0x20
[ 644.836078][ T29] ? trace_contention_begin+0xa0/0xa0
[ 644.842185][ T29] schedule+0xbd/0x170
[ 644.846393][ T29] schedule_preempt_disabled+0x13/0x20
[ 644.852131][ T29] __mutex_lock+0x82f/0x1790
[ 644.857392][ T29] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20
[ 644.864602][ T29] ? selinux_capable+0x2b6/0x3b0
[ 644.869687][ T29] ? sched_clock+0x9/0x10
[ 644.874136][ T29] ? __cfi_selinux_capable+0x10/0x10
[ 644.879779][ T29] ? wp_page_copy+0x2a3/0x15a0
[ 644.884747][ T29] ? do_wp_page+0x9f2/0xfc0
[ 644.889522][ T29] ? handle_mm_fault+0x1124/0x26c0
[ 644.894750][ T29] ? cap_capable+0x1aa/0x230
[ 644.899673][ T29] __mutex_lock_slowpath+0xe/0x10
[ 644.904889][ T29] mutex_lock+0x10a/0x1b0
[ 644.909521][ T29] ? __cfi_mutex_lock+0x10/0x10
[ 644.914736][ T29] ? ns_capable+0x8c/0xf0
[ 644.919307][ T29] ? netlink_net_capable+0x125/0x160
[ 644.924803][ T29] rtnetlink_rcv_msg+0x9fc/0xe00
[ 644.930121][ T29] ? __cfi_rtnetlink_rcv_msg+0x10/0x10
[ 644.935701][ T29] ? kernel_text_address+0xa0/0xd0
[ 644.941010][ T29] ? __kernel_text_address+0xd/0x30
[ 644.946244][ T29] ? avc_has_perm_noaudit+0x391/0x490
[ 644.952052][ T29] ? memcpy+0x56/0x70
[ 644.956234][ T29] ? avc_has_perm_noaudit+0x30b/0x490
[ 644.962149][ T29] ? __cfi_avc_has_perm_noaudit+0x10/0x10
[ 644.968477][ T29] ? slab_post_alloc_hook+0x4f/0x2d0
[ 644.973830][ T29] ? avc_has_perm+0x163/0x250
[ 644.979305][ T29] ? __alloc_skb+0x236/0x4b0
[ 644.984106][ T29] ? netlink_sendmsg+0x635/0xbd0
[ 644.989873][ T29] ? __sys_sendto+0x4ac/0x660
[ 644.994840][ T29] ? __cfi_avc_has_perm+0x10/0x10
[ 645.000128][ T29] ? selinux_nlmsg_lookup+0x400/0x4c0
[ 645.005902][ T29] netlink_rcv_skb+0x20f/0x460
[ 645.010999][ T29] ? __cfi_rtnetlink_rcv_msg+0x10/0x10
[ 645.016595][ T29] ? __cfi_netlink_rcv_skb+0x10/0x10
[ 645.022530][ T29] ? __netlink_lookup+0x387/0x3b0
[ 645.027771][ T29] rtnetlink_rcv+0x1c/0x20
[ 645.032495][ T29] netlink_unicast+0x8ab/0xa30
[ 645.037485][ T29] netlink_sendmsg+0x8b9/0xbd0
[ 645.042643][ T29] ? cgroup_rstat_updated+0xf5/0x360
[ 645.048250][ T29] ? __cfi_netlink_sendmsg+0x10/0x10
[ 645.053827][ T29] ? security_socket_sendmsg+0x93/0xb0
[ 645.059563][ T29] __sys_sendto+0x4ac/0x660
[ 645.064179][ T29] ? __cfi___sys_sendto+0x10/0x10
[ 645.069520][ T29] ? do_user_addr_fault+0x9ac/0x1050
[ 645.075092][ T29] __x64_sys_sendto+0xe5/0x100
[ 645.080158][ T29] x64_sys_call+0x83/0x9a0
[ 645.084805][ T29] do_syscall_64+0x4c/0xa0
[ 645.089585][ T29] ? clear_bhb_loop+0x30/0x80
[ 645.094282][ T29] ? clear_bhb_loop+0x30/0x80
[ 645.099242][ T29] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 645.105471][ T29] RIP: 0033:0x7f25a1757997
[ 645.110123][ T29] RSP: 002b:00007fff17124000 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 645.118651][ T29] RAX: ffffffffffffffda RBX: 0000555582350500 RCX: 00007f25a1757997
[ 645.126830][ T29] RDX: 0000000000000028 RSI: 00007f25a2544670 RDI: 0000000000000003
[ 645.135318][ T29] RBP: 0000000000000001 R08: 00007fff17124064 R09: 000000000000000c
[ 645.143799][ T29] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
[ 645.152157][ T29] R13: 0000000000000000 R14: 00007f25a2544670 R15: 0000000000000000
[ 645.160465][ T29]
[ 645.163596][ T29] NMI backtrace for cpu 1
[ 645.168024][ T29] CPU: 1 PID: 29 Comm: khungtaskd Not tainted syzkaller #0
[ 645.175232][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 645.185584][ T29] Call Trace:
[ 645.188961][ T29]
[ 645.192096][ T29] __dump_stack+0x21/0x24
[ 645.196702][ T29] dump_stack_lvl+0x110/0x170
[ 645.201577][ T29] ? __cfi_dump_stack_lvl+0x8/0x8
[ 645.206617][ T29] dump_stack+0x15/0x24
[ 645.210794][ T29] nmi_cpu_backtrace+0x2af/0x2c0
[ 645.215840][ T29] ? rcu_read_unlock_special+0xb2/0x440
[ 645.221492][ T29] ? __cfi_nmi_cpu_backtrace+0x10/0x10
[ 645.226972][ T29] ? nmi_trigger_cpumask_backtrace+0xf6/0x3a0
[ 645.233225][ T29] ? __cfi_nmi_raise_cpu_backtrace+0x10/0x10
[ 645.239215][ T29] ? __cfi_nmi_raise_cpu_backtrace+0x10/0x10
[ 645.245205][ T29] nmi_trigger_cpumask_backtrace+0x16b/0x3a0
[ 645.251291][ T29] arch_trigger_cpumask_backtrace+0x10/0x20
[ 645.257373][ T29] watchdog+0xd68/0xeb0
[ 645.261542][ T29] ? __cfi_watchdog+0x10/0x10
[ 645.266329][ T29] ? __kasan_check_read+0x11/0x20
[ 645.271367][ T29] ? __kthread_parkme+0x142/0x180
[ 645.276682][ T29] kthread+0x281/0x320
[ 645.280975][ T29] ? __cfi_watchdog+0x10/0x10
[ 645.285947][ T29] ? __cfi_kthread+0x10/0x10
[ 645.290753][ T29] ret_from_fork+0x1f/0x30
[ 645.295277][ T29]
[ 645.298445][ T29] Sending NMI from CPU 1 to CPUs 0:
[ 645.304361][ C0] NMI backtrace for cpu 0
[ 645.304371][ C0] CPU: 0 PID: 365 Comm: syz.2.18 Not tainted syzkaller #0
[ 645.304387][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 645.304396][ C0] RIP: 0010:native_apic_msr_write+0x39/0x50
[ 645.304428][ 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 <66> 90 eb d9 89 f6 31 d2 e8 5a dc 5b 01 5d c3 0f 1f 84 00 00 00 00
[ 645.304440][ C0] RSP: 0000:ffffc90000006a70 EFLAGS: 00000046
[ 645.304454][ C0] RAX: 00000000000000b6 RBX: 00000000000000b6 RCX: 0000000000000838
[ 645.304464][ C0] RDX: 0000000000000000 RSI: 00000000000000b6 RDI: 0000000000000838
[ 645.304473][ C0] RBP: ffffc90000006a70 R08: ffff88811685e540 R09: 0000000000000002
[ 645.304483][ C0] R10: 0000000000000000 R11: ffffffff8134c5d0 R12: 0000000000000020
[ 645.304493][ C0] R13: dffffc0000000000 R14: ffffffff866d4b60 R15: dffffc0000000000
[ 645.304504][ C0] FS: 0000555586a17500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[ 645.304517][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 645.304528][ C0] CR2: 00000000000008a7 CR3: 000000010ef85000 CR4: 00000000003506b0
[ 645.304543][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 645.304552][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 645.304562][ C0] Call Trace:
[ 645.304566][ C0]
[ 645.304572][ C0] lapic_next_event+0x70/0x80
[ 645.304590][ C0] clockevents_program_event+0x1d9/0x330
[ 645.304606][ C0] tick_program_event+0xa3/0x120
[ 645.304623][ C0] hrtimer_interrupt+0x501/0x8c0
[ 645.304646][ C0] __sysvec_apic_timer_interrupt+0x11e/0x440
[ 645.304666][ C0] sysvec_apic_timer_interrupt+0x53/0xc0
[ 645.304684][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 645.304702][ C0] RIP: 0010:free_old_xmit_skbs+0x121/0x280
[ 645.304720][ C0] Code: c0 0f 85 87 00 00 00 45 8b 75 70 4c 89 ef 8b 74 24 0c e8 42 ee dc 00 48 b8 00 00 00 00 00 fc ff df 48 8b 4c 24 18 80 3c 01 00 <74> 08 48 89 df e8 95 57 a7 fe 45 01 f4 48 8b 3b 48 8d 74 24 40 e8
[ 645.304731][ C0] RSP: 0000:ffffc90000006d40 EFLAGS: 00000246
[ 645.304743][ C0] RAX: dffffc0000000000 RBX: ffff88810d94c000 RCX: 1ffff11021b29800
[ 645.304754][ C0] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffff87bcb3b0
[ 645.304763][ C0] RBP: ffffc90000006de8 R08: ffffffff87bcb3b7 R09: 1ffffffff0f79676
[ 645.304773][ C0] R10: dffffc0000000000 R11: fffffbfff0f79677 R12: 0000000000000000
[ 645.304784][ C0] R13: ffff8881f716ef00 R14: 000000000000002a R15: 0000000000000001
[ 645.304796][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 645.304813][ C0] ? virtqueue_napi_schedule+0x40/0x40
[ 645.304828][ C0] ? __cfi_start_xmit+0x10/0x10
[ 645.304843][ C0] ? virtqueue_disable_cb+0x141/0x390
[ 645.304860][ C0] start_xmit+0x172/0x15e0
[ 645.304875][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 645.304892][ C0] ? __cfi_start_xmit+0x10/0x10
[ 645.304908][ C0] dev_hard_start_xmit+0x20b/0x750
[ 645.304928][ C0] sch_direct_xmit+0x27a/0x900
[ 645.304947][ C0] ? irqentry_exit+0x37/0x40
[ 645.304964][ C0] ? sysvec_irq_work+0x61/0xc0
[ 645.304980][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 645.304996][ C0] ? __cfi_sch_direct_xmit+0x10/0x10
[ 645.305016][ C0] __dev_queue_xmit+0x1638/0x3470
[ 645.305034][ C0] ? __dev_queue_xmit+0x258/0x3470
[ 645.305051][ C0] ? __cfi___dev_queue_xmit+0x10/0x10
[ 645.305068][ C0] ? debug_smp_processor_id+0x17/0x20
[ 645.305087][ C0] ? irqtime_account_irq+0xc4/0x240
[ 645.305107][ C0] ? __irq_exit_rcu+0x5e/0xf0
[ 645.305122][ C0] ? irqentry_exit+0x37/0x40
[ 645.305139][ C0] ? sysvec_irq_work+0x61/0xc0
[ 645.305155][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 645.305173][ C0] arp_xmit+0xd0/0x1f0
[ 645.305188][ C0] ? arp_create+0x4b0/0x7f0
[ 645.305203][ C0] ? __cfi_arp_xmit+0x10/0x10
[ 645.305218][ C0] ? arp_create+0x4b0/0x7f0
[ 645.305235][ C0] arp_send_dst+0x1d3/0x280
[ 645.305251][ C0] arp_process+0x1365/0x1910
[ 645.305269][ C0] ? __cfi_arp_process+0x10/0x10
[ 645.305285][ C0] ? __cfi_arp_process+0x10/0x10
[ 645.305301][ C0] ? __cfi_arp_process+0x10/0x10
[ 645.305317][ C0] NF_HOOK+0x177/0x1d0
[ 645.305331][ C0] ? __cfi_arp_process+0x10/0x10
[ 645.305347][ C0] ? arp_xmit+0x1f0/0x1f0
[ 645.305363][ C0] ? arp_rcv+0x200/0x480
[ 645.305379][ C0] ? memset_erms+0xb/0x10
[ 645.305394][ C0] arp_rcv+0x2ef/0x480
[ 645.305417][ C0] ? __cfi_arp_rcv+0x10/0x10
[ 645.305433][ C0] __netif_receive_skb_list_core+0x71e/0x780
[ 645.305453][ C0] ? set_rps_cpu+0x5e0/0x5e0
[ 645.305469][ C0] ? netif_receive_skb_list_internal+0x7ea/0xab0
[ 645.305489][ C0] netif_receive_skb_list_internal+0x7f8/0xab0
[ 645.305509][ C0] ? __cfi_netif_receive_skb_list_internal+0x10/0x10
[ 645.305527][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 645.305544][ C0] ? napi_gro_receive+0x438/0x880
[ 645.305560][ C0] napi_gro_receive+0x444/0x880
[ 645.305575][ C0] receive_buf+0x207b/0x4960
[ 645.305593][ C0] ? irq_work_run+0xf0/0xf0
[ 645.305610][ C0] ? virtnet_poll_tx+0x540/0x540
[ 645.305627][ C0] ? __irq_exit_rcu+0x5e/0xf0
[ 645.305641][ C0] ? irqentry_exit+0x37/0x40
[ 645.305658][ C0] ? sysvec_irq_work+0x61/0xc0
[ 645.305673][ C0] ? detach_buf_split+0x882/0xa80
[ 645.305689][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 645.305708][ C0] ? virtqueue_get_buf_ctx+0x6c1/0xcd0
[ 645.305725][ C0] virtnet_poll+0x5d3/0x1180
[ 645.305744][ C0] ? __cfi_virtnet_poll+0x10/0x10
[ 645.305761][ C0] ? __cfi_virtnet_poll+0x10/0x10
[ 645.305779][ C0] __napi_poll+0xd0/0x5e0
[ 645.305796][ C0] net_rx_action+0x4b6/0xac0
[ 645.305813][ C0] ? irqtime_account_irq+0xc4/0x240
[ 645.305832][ C0] ? __cfi_net_rx_action+0x10/0x10
[ 645.305852][ C0] handle_softirqs+0x1d7/0x600
[ 645.305867][ C0] ? irqtime_account_irq+0xc4/0x240
[ 645.305886][ C0] __irq_exit_rcu+0x52/0xf0
[ 645.305900][ C0] irq_exit_rcu+0x9/0x10
[ 645.305914][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0
[ 645.305931][ C0]
[ 645.305935][ C0]
[ 645.305940][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 645.305956][ C0] RIP: 0010:preempt_schedule_irq+0xa5/0x120
[ 645.305973][ C0] Code: 44 24 20 00 02 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 91 a2 4c fc fb bf 01 00 00 00 f6 e4 ff ff fa bf 01 00 00 00 e8 3b a4 4c fc 65 48 8b 1d 43 6b
[ 645.305984][ C0] RSP: 0000:ffffc90000197d60 EFLAGS: 00000246
[ 645.305995][ C0] RAX: 1ffff11022d0be01 RBX: ffffc90000197e28 RCX: ffffffff87b7a100
[ 645.306006][ C0] RDX: 1ffffffff0f6e400 RSI: 0000000000000000 RDI: 0000000000000001
[ 645.306015][ C0] RBP: ffffc90000197dd8 R08: ffffffff87b72008 R09: ffffffff87b72018
[ 645.306026][ C0] R10: ffffffff87b72003 R11: 1ffffffff0f6e400 R12: 0000000000000000
[ 645.306036][ C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000032fac
[ 645.306048][ C0] ? __cfi_preempt_schedule_irq+0x10/0x10
[ 645.306063][ C0] ? __cfi_sched_clock_cpu+0x10/0x10
[ 645.306080][ C0] raw_irqentry_exit_cond_resched+0x29/0x30
[ 645.306096][ C0] irqentry_exit+0x37/0x40
[ 645.306113][ C0] sysvec_apic_timer_interrupt+0x64/0xc0
[ 645.306130][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 645.306147][ C0] RIP: 0010:exit_to_user_mode_loop+0x4a/0xb0
[ 645.306163][ C0] Code: 00 e8 ca 8a 5a 00 e8 b5 27 f8 00 fa e8 ff a2 9a 03 65 48 8b 05 47 58 a2 7e 4c 8b 30 41 f7 c6 0e 30 02 00 74 5b fb 41 f6 c6 08 <74> 05 e8 df e6 9f 03 41 f7 c6 00 10 00 00 74 08 48 89 df e8 6e 95
[ 645.306174][ C0] RSP: 0000:ffffc90000197ed0 EFLAGS: 00000202
[ 645.306185][ C0] RAX: 0000000000000000 RBX: ffffc90000197f58 RCX: 934667fe02ca9000
[ 645.306195][ C0] RDX: 1ffffffff0f6e400 RSI: 0000000000000008 RDI: ffffc90000197f58
[ 645.306205][ C0] RBP: ffffc90000197ee0 R08: ffffffff87b72008 R09: ffffffff87b72018
[ 645.306216][ C0] R10: ffffffff87b72003 R11: 1ffffffff0f6e400 R12: 0000000000000000
[ 645.306226][ C0] R13: 0000000000000000 R14: 0000000000000008 R15: ffff88811685e540
[ 645.306238][ C0] exit_to_user_mode_prepare+0x87/0xd0
[ 645.306253][ C0] irqentry_exit_to_user_mode+0x9/0x10
[ 645.306270][ C0] irqentry_exit+0x12/0x40
[ 645.306287][ C0] sysvec_apic_timer_interrupt+0x64/0xc0
[ 645.306304][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 645.306320][ C0] RIP: 0033:0x7fef2733db97
[ 645.306332][ C0] Code: e8 ae 11 06 00 66 2e 0f 1f 84 00 00 00 00 00 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
[ 645.306343][ C0] RSP: 002b:00007ffdafe26980 EFLAGS: 00000246
[ 645.306354][ C0] RAX: 000000000000000f RBX: 00007fef27615fa0 RCX: 00007fef27432c91
[ 645.306364][ C0] RDX: 00007ffdafe26980 RSI: 00007ffdafe26ab0 RDI: 0000000000000011
[ 645.306374][ C0] RBP: 00007fef27432c91 R08: 0000000000000000 R09: 0000000000000000
[ 645.306383][ C0] R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
[ 645.306393][ C0] R13: 00007fef27615fac R14: 00007fef27615fa0 R15: 00007fef27615fa0
[ 645.306494][ C0]
[ 679.768028][ T16] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 22213 jiffies s: 1149 root: 0x1/.
[ 679.780707][ T16] rcu: blocking rcu_node structures (internal RCU debug):
[ 679.788098][ T16] Sending NMI from CPU 1 to CPUs 0:
[ 679.793411][ C0] NMI backtrace for cpu 0
[ 679.793421][ C0] CPU: 0 PID: 365 Comm: syz.2.18 Not tainted syzkaller #0
[ 679.793439][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[ 679.793448][ C0] RIP: 0010:native_apic_msr_write+0x39/0x50
[ 679.793475][ 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 <66> 90 eb d9 89 f6 31 d2 e8 5a dc 5b 01 5d c3 0f 1f 84 00 00 00 00
[ 679.793489][ C0] RSP: 0000:ffffc90000007190 EFLAGS: 00000046
[ 679.793504][ C0] RAX: 000000000000006b RBX: 000000000000006b RCX: 0000000000000838
[ 679.793516][ C0] RDX: 0000000000000000 RSI: 000000000000006b RDI: 0000000000000838
[ 679.793527][ C0] RBP: ffffc90000007190 R08: ffff88811685e540 R09: 0000000000000002
[ 679.793539][ C0] R10: 0000000000000000 R11: ffffffff8134c5d0 R12: 0000000000000020
[ 679.793550][ C0] R13: dffffc0000000000 R14: ffffffff866d4b60 R15: dffffc0000000000
[ 679.793563][ C0] FS: 0000555586a17500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[ 679.793579][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 679.793591][ C0] CR2: 00000000000008a7 CR3: 000000010ef85000 CR4: 00000000003506b0
[ 679.793620][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 679.793630][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 679.793641][ C0] Call Trace:
[ 679.793646][ C0]
[ 679.793651][ C0] lapic_next_event+0x70/0x80
[ 679.793673][ C0] clockevents_program_event+0x1d9/0x330
[ 679.793690][ C0] tick_program_event+0xa3/0x120
[ 679.793708][ C0] hrtimer_interrupt+0x501/0x8c0
[ 679.793733][ C0] __sysvec_apic_timer_interrupt+0x11e/0x440
[ 679.793754][ C0] sysvec_apic_timer_interrupt+0x53/0xc0
[ 679.793774][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 679.793793][ C0] RIP: 0010:arp_process+0x505/0x1910
[ 679.793813][ C0] Code: 00 00 00 00 fc ff df 48 89 54 24 48 80 3c 02 00 74 0f 48 8b 7c 24 20 e8 c9 88 79 fd 48 8b 4c 24 20 41 be 38 05 00 00 4c 03 31 <4c> 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74
[ 679.793826][ C0] RSP: 0000:ffffc90000007460 EFLAGS: 00000282
[ 679.793840][ C0] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff88810d90a800
[ 679.793852][ C0] RDX: 1ffff11021b21500 RSI: 0000000000000000 RDI: 00000000000000e0
[ 679.793864][ C0] RBP: ffffc90000007550 R08: ffff88811685e540 R09: 0000000000000002
[ 679.793876][ C0] R10: 0000000000000200 R11: 0000000000000100 R12: 000000000a00800a
[ 679.793886][ C0] R13: ffff888123c06c54 R14: ffff88810d948538 R15: 1ffff92000000e98
[ 679.793910][ C0] ? __cfi_arp_process+0x10/0x10
[ 679.793928][ C0] ? __cfi_arp_process+0x10/0x10
[ 679.793946][ C0] ? __cfi_arp_process+0x10/0x10
[ 679.793963][ C0] NF_HOOK+0x177/0x1d0
[ 679.793980][ C0] ? __cfi_arp_process+0x10/0x10
[ 679.793997][ C0] ? arp_xmit+0x1f0/0x1f0
[ 679.794013][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 679.794034][ C0] arp_rcv+0x2ef/0x480
[ 679.794051][ C0] ? __cfi_arp_rcv+0x10/0x10
[ 679.794069][ C0] __netif_receive_skb_list_core+0x71e/0x780
[ 679.794091][ C0] ? set_rps_cpu+0x5e0/0x5e0
[ 679.794108][ C0] ? netif_receive_skb_list_internal+0x7ea/0xab0
[ 679.794130][ C0] netif_receive_skb_list_internal+0x7f8/0xab0
[ 679.794151][ C0] ? __cfi_netif_receive_skb_list_internal+0x10/0x10
[ 679.794172][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 679.794190][ C0] ? napi_gro_receive+0x438/0x880
[ 679.794208][ C0] napi_gro_receive+0x444/0x880
[ 679.794225][ C0] receive_buf+0x207b/0x4960
[ 679.794245][ C0] ? irq_work_run+0xf0/0xf0
[ 679.794264][ C0] ? virtnet_poll_tx+0x540/0x540
[ 679.794282][ C0] ? __irq_exit_rcu+0x5e/0xf0
[ 679.794298][ C0] ? irqentry_exit+0x37/0x40
[ 679.794317][ C0] ? sysvec_irq_work+0x61/0xc0
[ 679.794334][ C0] ? detach_buf_split+0x882/0xa80
[ 679.794352][ C0] ? asm_sysvec_irq_work+0x1b/0x20
[ 679.794372][ C0] ? virtqueue_get_buf_ctx+0x6c1/0xcd0
[ 679.794391][ C0] virtnet_poll+0x5d3/0x1180
[ 679.794411][ C0] ? __cfi_virtnet_poll+0x10/0x10
[ 679.794430][ C0] ? __cfi_virtnet_poll+0x10/0x10
[ 679.794449][ C0] __napi_poll+0xd0/0x5e0
[ 679.794467][ C0] net_rx_action+0x4b6/0xac0
[ 679.794485][ C0] ? irqtime_account_irq+0xc4/0x240
[ 679.794508][ C0] ? __cfi_net_rx_action+0x10/0x10
[ 679.794528][ C0] handle_softirqs+0x1d7/0x600
[ 679.794545][ C0] ? irqtime_account_irq+0xc4/0x240
[ 679.794565][ C0] __irq_exit_rcu+0x52/0xf0
[ 679.794590][ C0] irq_exit_rcu+0x9/0x10
[ 679.794605][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0
[ 679.794623][ C0]
[ 679.794628][ C0]
[ 679.794633][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 679.794651][ C0] RIP: 0010:preempt_schedule_irq+0xa5/0x120
[ 679.794669][ C0] Code: 44 24 20 00 02 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 91 a2 4c fc fb bf 01 00 00 00 f6 e4 ff ff fa bf 01 00 00 00 e8 3b a4 4c fc 65 48 8b 1d 43 6b
[ 679.794682][ C0] RSP: 0000:ffffc90000197d60 EFLAGS: 00000246
[ 679.794695][ C0] RAX: 1ffff11022d0be01 RBX: ffffc90000197e28 RCX: ffffffff87b7a100
[ 679.794707][ C0] RDX: 1ffffffff0f6e400 RSI: 0000000000000000 RDI: 0000000000000001
[ 679.794718][ C0] RBP: ffffc90000197dd8 R08: ffffffff87b72008 R09: ffffffff87b72018
[ 679.794729][ C0] R10: ffffffff87b72003 R11: 1ffffffff0f6e400 R12: 0000000000000000
[ 679.794740][ C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000032fac
[ 679.794754][ C0] ? __cfi_preempt_schedule_irq+0x10/0x10
[ 679.794771][ C0] ? __cfi_sched_clock_cpu+0x10/0x10
[ 679.794788][ C0] raw_irqentry_exit_cond_resched+0x29/0x30
[ 679.794806][ C0] irqentry_exit+0x37/0x40
[ 679.794823][ C0] sysvec_apic_timer_interrupt+0x64/0xc0
[ 679.794842][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 679.794859][ C0] RIP: 0010:exit_to_user_mode_loop+0x4a/0xb0
[ 679.794877][ C0] Code: 00 e8 ca 8a 5a 00 e8 b5 27 f8 00 fa e8 ff a2 9a 03 65 48 8b 05 47 58 a2 7e 4c 8b 30 41 f7 c6 0e 30 02 00 74 5b fb 41 f6 c6 08 <74> 05 e8 df e6 9f 03 41 f7 c6 00 10 00 00 74 08 48 89 df e8 6e 95
[ 679.794889][ C0] RSP: 0000:ffffc90000197ed0 EFLAGS: 00000202
[ 679.794909][ C0] RAX: 0000000000000000 RBX: ffffc90000197f58 RCX: 934667fe02ca9000
[ 679.794920][ C0] RDX: 1ffffffff0f6e400 RSI: 0000000000000008 RDI: ffffc90000197f58
[ 679.794931][ C0] RBP: ffffc90000197ee0 R08: ffffffff87b72008 R09: ffffffff87b72018
[ 679.794942][ C0] R10: ffffffff87b72003 R11: 1ffffffff0f6e400 R12: 0000000000000000
[ 679.794953][ C0] R13: 0000000000000000 R14: 0000000000000008 R15: ffff88811685e540
[ 679.794966][ C0] exit_to_user_mode_prepare+0x87/0xd0
[ 679.794983][ C0] irqentry_exit_to_user_mode+0x9/0x10
[ 679.795002][ C0] irqentry_exit+0x12/0x40
[ 679.795019][ C0] sysvec_apic_timer_interrupt+0x64/0xc0
[ 679.795038][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 679.795056][ C0] RIP: 0033:0x7fef2733db97
[ 679.795069][ C0] Code: e8 ae 11 06 00 66 2e 0f 1f 84 00 00 00 00 00 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
[ 679.795082][ C0] RSP: 002b:00007ffdafe26980 EFLAGS: 00000246
[ 679.795094][ C0] RAX: 000000000000000f RBX: 00007fef27615fa0 RCX: 00007fef27432c91
[ 679.795105][ C0] RDX: 00007ffdafe26980 RSI: 00007ffdafe26ab0 RDI: 0000000000000011
[ 679.795116][ C0] RBP: 00007fef27432c91 R08: 0000000000000000 R09: 0000000000000000
[ 679.795127][ C0] R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
[ 679.795137][ C0] R13: 00007fef27615fac R14: 00007fef27615fa0 R15: 00007fef27615fa0
[ 679.795151][ C0]