last executing test programs: 1.23476779s ago: executing program 0 (id=1): syz_usb_connect(0x0, 0x49, &(0x7f0000000000)=ANY=[@ANYBLOB="12011002000000408680d20a000001020001090237000201008030080b00020e03000009040000010e0100000d2401000100000000000001000705810308000109040100000e020000"], 0x0) nanosleep(&(0x7f0000000300)={0x0, 0x1dcd6500}, 0x0) 1.187511711s ago: executing program 3 (id=4): bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x1, 0x7, &(0x7f0000000180)=@raw=[@generic={0x72, 0xa, 0x0, 0xfffb, 0x1}, @generic={0x72, 0xa, 0x0, 0xfffa, 0x1}, @generic={0x72, 0xa, 0x0, 0xfff9, 0x1}, @generic={0x15, 0x1}, @generic={0x72, 0xa, 0x0, 0xfff8, 0x1}, @generic={0xb7}, @generic={0x95}], &(0x7f00000001c0)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0xa0) 1.163024681s ago: executing program 3 (id=6): r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) ioctl$KVM_CREATE_IRQCHIP(r1, 0xae60) r2 = syz_kvm_setup_syzos_vm$x86(r1, &(0x7f0000c00000/0x400000)=nil) r3 = syz_kvm_add_vcpu$x86(r2, &(0x7f0000000080)={0x0, &(0x7f00000000c0)=[@enable_nested={0x12c, 0x18}, @nested_create_vm={0x12d, 0x18}, @nested_load_code={0x12e, 0x1a, {0x0, "ebfe"}}, @nested_vmlaunch={0x12f, 0x18}], 0x62}) r4 = ioctl$KVM_GET_VCPU_MMAP_SIZE(r0, 0xae04) mmap$KVM_VCPU(&(0x7f0000009000/0x1000)=nil, r4, 0x3, 0x11, r3, 0x0) ioctl$KVM_SET_VCPU_EVENTS(r3, 0x4040aea0, &(0x7f0000000300)=@x86={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x0, 0x0, 0x1}) ioctl$KVM_RUN(r3, 0xae80, 0x0) 1.121106562s ago: executing program 4 (id=5): mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) syz_usb_connect(0x0, 0x24, &(0x7f0000000140)=ANY=[@ANYBLOB="12010002000000402505a1a4000001020301090212000101008032090400000000000000"], 0x0) nanosleep(&(0x7f0000000200)={0x0, 0xbebc200}, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./sys/bus/usb/drivers/usbip-host/match_busid\x00', 0x1, 0x0) write(r0, &(0x7f0000000300)='add 1-1\x00', 0x8) write(r0, &(0x7f0000000300)='add 2-1\x00', 0x8) close(r0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000380)='./sys/bus/usb/drivers/usb/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000400)='\x00', 0x1) close(r1) r2 = openat(0xffffffffffffff9c, &(0x7f0000000380)='./sys/bus/usb/drivers/usbip-host/match_busid\x00', 0x1, 0x0) write(r2, &(0x7f0000000400)='\x00', 0x1) close(r2) r3 = openat(0xffffffffffffff9c, &(0x7f0000000380)='./sys/bus/usb/drivers/usbip-host/match_busid\x00', 0x1, 0x0) write(r3, &(0x7f0000000400)='\x00', 0x1) close(r3) r4 = openat(0xffffffffffffff9c, &(0x7f0000000380)='./sys/bus/usb/drivers/usbip-host/match_busid\x00', 0x1, 0x0) write(r4, &(0x7f0000000400)='\x00', 0x1) close(r4) r5 = openat(0xffffffffffffff9c, &(0x7f0000000480)='./sys/bus/usb/drivers/usbip-host/bind\x00', 0x1, 0x0) write(r5, &(0x7f0000000500)='\x00', 0x1) write(r5, &(0x7f0000000500)='\x00', 0x1) close(r5) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000580)={0x0, 0x0}) r7 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./sys/bus/usb/devices/1-1/usbip_sockfd\x00', 0x1, 0x0) write(r7, &(0x7f0000000680)='4\n\x00', 0x2) close(r7) r8 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./sys/bus/usb/drivers/usbip-host/match_busid\x00', 0x1, 0x0) write(r8, &(0x7f0000000680)='\x00', 0x1) close(r8) nanosleep(&(0x7f0000000200)={0x0, 0xbebc200}, 0x0) write(r6, &(0x7f0000000700)="00000001000000010001000200000000000000000000000000000000000000000000000000000000010b000000000000", 0x30) write(r6, &(0x7f0000000700)="00000001000000010001000100000000000000000000000000000000000000000000000000000000010b000000000000", 0x30) write(r6, &(0x7f0000000700)="00000001000000010001000300000000000000000000000000000000000000000000000000000000010b000000000000", 0x30) write(r6, &(0x7f0000000700)="00000001000000010002000100000000000000000000000000000000000000000000000000000000010b000000000000", 0x30) write(r6, &(0x7f0000000700)="00000001000000010002000200000000000000000000000000000000000000000000000000000000010b000000000000", 0x30) write(r6, &(0x7f0000000700)="00000001000000010002000300000000000000000000000000000000000000000000000000000000010b000000000000", 0x30) nanosleep(&(0x7f0000000200)={0x0, 0xbebc200}, 0x0) 1.062607374s ago: executing program 1 (id=2): bpf$PROG_LOAD(0x5, &(0x7f0000000000)={0x3, 0xd, &(0x7f0000000100)=@framed={{}, [@generic={0x7, 0x0, 0x0, 0x0, 0x1}, @generic={0x7, 0x0, 0x0, 0x0, 0x1}, @generic={0x7, 0x0, 0x0, 0x0, 0x1}, @generic={0x7, 0x0, 0x0, 0x0, 0x1}, @generic={0x7, 0x0, 0x0, 0x0, 0x1}, @generic={0x7, 0x0, 0x0, 0x0, 0x1}, @generic={0x7, 0x0, 0x0, 0x0, 0x1}, @generic={0x7, 0x0, 0x0, 0x0, 0x1}, @generic={0x7, 0x0, 0x0, 0x0, 0x1}, @generic={0x7, 0x0, 0x0, 0x0, 0x1}]}, &(0x7f0000000200)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @sched_cls, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0xa0) 1.053872604s ago: executing program 2 (id=3): r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) r2 = syz_kvm_setup_syzos_vm$x86(r1, &(0x7f0000c00000/0x400000)=nil) r3 = syz_kvm_add_vcpu$x86(r2, &(0x7f0000000040)={0x0, &(0x7f0000000080)=[@code={0xa, 0x19, {"48c7c4000000fe9d"}}], 0x19}) r4 = ioctl$KVM_GET_VCPU_MMAP_SIZE(r0, 0xae04) mmap$KVM_VCPU(&(0x7f0000009000/0x1000)=nil, r4, 0x3, 0x11, r3, 0x0) ioctl$KVM_RUN(r3, 0xae80, 0x0) ioctl$KVM_RUN(r3, 0xae80, 0x0) 953.926256ms ago: executing program 1 (id=7): r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) ioctl$KVM_CREATE_IRQCHIP(r1, 0xae60) r2 = syz_kvm_setup_syzos_vm$x86(r1, &(0x7f0000c00000/0x400000)=nil) r3 = syz_kvm_add_vcpu$x86(r2, &(0x7f0000000100)={0x0, &(0x7f0000000200)=[@enable_nested, @nested_create_vm, @nested_intel_vmwrite_mask={0x154, 0x0, {0x0, @control32=0x4000, 0x80}}, @nested_intel_vmwrite_mask={0x154, 0x0, {0x0, @control64=0x2010, 0x2000}}, @nested_vmlaunch], 0x50}) ioctl$KVM_RUN(r3, 0xae80, 0x0) ioctl$KVM_RUN(r3, 0xae80, 0x0) 953.678266ms ago: executing program 3 (id=8): syz_usb_connect(0x0, 0x24, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x97, 0xff, 0x82, 0x8, 0x2058, 0x1005, 0xc19b, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x0, 0x0, 0x0, 0x0, "", [{{0x9, 0x4, 0x8f, 0x0, 0x0, 0xbf, 0x57, 0x5a}}]}}]}}, 0x0) syz_usb_disconnect(0x3) syz_usb_connect$uac3(0x3, 0x2d, &(0x7f0000000800)=ANY=[@ANYBLOB="12010002000000408205820540000102030109026e000301c0c310080b000201223061090400000001013000"], 0x0) getpid() 927.446797ms ago: executing program 2 (id=9): r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$KVM_GET_SUPPORTED_CPUID(r0, 0xc008ae05, &(0x7f0000000100)={0x100, 0x0, [{0xa}]}) 919.125458ms ago: executing program 1 (id=10): syz_usb_connect(0x0, 0x5a, &(0x7f0000000000)={{0x12, 0x1, 0x200, 0xff, 0x0, 0x0, 0x40, 0x6cd, 0x131, 0x100, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x48, 0x1, 0x1, 0x0, 0x80, 0xfa, "", [{{0x9, 0x4, 0x0, 0x0, 0x6, 0xff, 0x0, 0x0, 0x0, [], [{{0x9, 0x5, 0x81, 0x3, 0x40, 0x1}}, {{0x9, 0x5, 0x88, 0x3, 0x0, 0x1}}, {{0x9, 0x5, 0x1, 0x2, 0x40}}, {{0x9, 0x5, 0x2, 0x2, 0x40}}, {{0x9, 0x5, 0x4, 0x2, 0x40}}, {{0x9, 0x5, 0x6, 0x2, 0x40}}]}}]}}]}}, 0x0) r0 = syz_open_dev$usbfs(&(0x7f0000000080), 0x15, 0x2) ioctl$USBDEVFS_RESET(r0, 0x5514) 0s ago: executing program 2 (id=11): mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(&(0x7f0000000040)=@filename='none\x00', &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, &(0x7f0000000100)='\x00') mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./debug\x00', 0x1ff) mount(&(0x7f0000000240)=@filename='none\x00', &(0x7f0000000280)='./debug\x00', &(0x7f00000002c0)='debugfs\x00', 0x0, &(0x7f0000000300)='\x00') mkdirat(0xffffffffffffff9c, &(0x7f0000000780)='./proc\x00', 0x1ff) mount(&(0x7f00000007a0)=@filename='none\x00', &(0x7f00000007c0)='./proc\x00', &(0x7f00000007e0)='proc\x00', 0x0, &(0x7f00000007f0)='\x00') r0 = openat(0xffffffffffffff9c, &(0x7f0000000800)='./proc/self/fail-nth\x00', 0x1, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/class/ptp/ptp0/max_vclocks\x00', 0x1, 0x0) r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./debug/failslab/probability\x00', 0x1, 0x0) write(r2, &(0x7f0000000440)='100\x00', 0x3) close(r2) r3 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./debug/failslab/interval\x00', 0x1, 0x0) write(r3, &(0x7f0000000540)='1\x00', 0x1) close(r3) r4 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./debug/failslab/times\x00', 0x1, 0x0) write(r4, &(0x7f0000000640)='-1\x00', 0x2) close(r4) r5 = openat(0xffffffffffffff9c, &(0x7f0000000700)='./debug/failslab/task-filter\x00', 0x1, 0x0) write(r5, &(0x7f0000000740)='N\x00', 0x1) close(r5) r6 = openat(0xffffffffffffff9c, &(0x7f0000000750)='./debug/failslab/ignore-gfp-wait\x00', 0x1, 0x0) write(r6, &(0x7f0000000740)='N\x00', 0x1) close(r6) write(r0, &(0x7f0000000840)='1\x00', 0x1) write(r1, &(0x7f0000000940)='10\x00', 0x2) write(r0, &(0x7f0000000840)='2\x00', 0x1) write(r1, &(0x7f0000000940)='20\x00', 0x2) write(r0, &(0x7f0000000840)='3\x00', 0x1) write(r1, &(0x7f0000000940)='30\x00', 0x2) write(r0, &(0x7f0000000840)='4\x00', 0x1) write(r1, &(0x7f0000000940)='40\x00', 0x2) kernel console output (not intermixed with test programs): 88100335100 R15: dffffc0000000000 [ 118.592074][ C1] ? __cfi_default_idle+0x10/0x10 [ 118.597107][ C1] arch_cpu_idle+0x1c/0x20 [ 118.601516][ C1] default_idle_call+0x71/0x1d0 [ 118.606366][ C1] do_idle+0x1f1/0x640 [ 118.610430][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 118.616236][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 118.621433][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 118.627244][ C1] ? complete+0x167/0x1c0 [ 118.631661][ C1] cpu_startup_entry+0x43/0x60 [ 118.636421][ C1] start_secondary+0x119/0x120 [ 118.641178][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 118.647073][ C1] [ 118.650172][ C0] CPU: 0 PID: 316 Comm: kworker/u4:3 Not tainted syzkaller #0 [ 118.650201][ C1] FAULT_INJECTION: forcing a failure. [ 118.650201][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 118.657625][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 118.680745][ C0] Workqueue: events_unbound toggle_allocation_gate [ 118.687255][ C0] Call Trace: [ 118.690527][ C0] [ 118.693391][ C0] __dump_stack+0x21/0x24 [ 118.697720][ C0] dump_stack_lvl+0x110/0x170 [ 118.702394][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 118.707417][ C0] ? calc_wheel_index+0x1b5/0x8d0 [ 118.712445][ C0] ? timer_update_keys+0xb0/0xb0 [ 118.717386][ C0] dump_stack+0x15/0x24 [ 118.721545][ C0] should_fail_ex+0x3bf/0x510 [ 118.726213][ C0] __should_failslab+0xac/0xf0 [ 118.730982][ C0] should_failslab+0x9/0x20 [ 118.735486][ C0] kmem_cache_alloc_node+0x42/0x330 [ 118.740683][ C0] ? __alloc_skb+0xe8/0x4a0 [ 118.745179][ C0] __alloc_skb+0xe8/0x4a0 [ 118.749510][ C0] ndisc_send_rs+0x31d/0x870 [ 118.754093][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 118.759033][ C0] addrconf_rs_timer+0x35a/0x600 [ 118.763968][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 118.769448][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 118.774475][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 118.780018][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 118.785476][ C0] call_timer_fn+0x46/0x2a0 [ 118.789993][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 118.795453][ C0] __run_timers+0x646/0x9b0 [ 118.799962][ C0] ? calc_index+0x200/0x200 [ 118.804498][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 118.809876][ C0] run_timer_softirq+0x6a/0xf0 [ 118.814645][ C0] handle_softirqs+0x1d7/0x600 [ 118.819515][ C0] __irq_exit_rcu+0x52/0xf0 [ 118.824014][ C0] irq_exit_rcu+0x9/0x10 [ 118.828249][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 118.833887][ C0] [ 118.836806][ C0] [ 118.839735][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 118.845719][ C0] RIP: 0010:smp_call_function_many_cond+0x85a/0x940 [ 118.852309][ C0] Code: e6 01 31 ff e8 77 72 09 00 83 e3 01 48 bb 00 00 00 00 00 fc ff df 75 0a e8 43 6e 09 00 e9 38 ff ff ff f3 90 41 0f b6 44 1d 00 <84> c0 75 14 41 f7 07 01 00 00 00 0f 84 1a ff ff ff e8 20 6e 09 00 [ 118.871913][ C0] RSP: 0018:ffffc9000dc9f840 EFLAGS: 00000293 [ 118.877979][ C0] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88810fc9a880 [ 118.885942][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 118.893911][ C0] RBP: ffffc9000dc9f978 R08: ffff8881f6e390d7 R09: 1ffff1103edc721a [ 118.901877][ C0] R10: 0000000000000000 R11: ffffffff8134b650 R12: 1ffff1103edc7218 [ 118.909840][ C0] R13: 1ffff1103ede78a5 R14: 0000000000000001 R15: ffff8881f6f3c528 [ 118.917826][ C0] ? __cfi_x2apic_send_IPI+0x10/0x10 [ 118.923122][ C0] ? __cfi_do_sync_core+0x10/0x10 [ 118.928148][ C0] ? smp_call_function_many+0x40/0x40 [ 118.933519][ C0] ? kmem_cache_alloc_bulk+0xf8/0x3c0 [ 118.938899][ C0] ? text_poke+0x30/0x30 [ 118.943147][ C0] ? text_poke_loc_init+0x105/0x560 [ 118.948344][ C0] ? __cfi_do_sync_core+0x10/0x10 [ 118.953373][ C0] on_each_cpu_cond_mask+0x43/0x80 [ 118.958489][ C0] text_poke_bp_batch+0x1cf/0x600 [ 118.963515][ C0] ? text_poke_loc_init+0x560/0x560 [ 118.968714][ C0] ? __kasan_check_write+0x14/0x20 [ 118.973821][ C0] ? mutex_lock+0x93/0x1b0 [ 118.978246][ C0] ? __cfi_mutex_lock+0x10/0x10 [ 118.983109][ C0] ? text_poke_queue+0xde/0x1a0 [ 118.987965][ C0] text_poke_finish+0x1a/0x30 [ 118.992641][ C0] arch_jump_label_transform_apply+0x15/0x30 [ 118.998627][ C0] __jump_label_update+0x38f/0x3b0 [ 119.003743][ C0] jump_label_update+0x39b/0x450 [ 119.008681][ C0] static_key_enable_cpuslocked+0x126/0x240 [ 119.014579][ C0] static_key_enable+0x1a/0x30 [ 119.019340][ C0] toggle_allocation_gate+0xba/0x440 [ 119.024623][ C0] ? __cfi_toggle_allocation_gate+0x10/0x10 [ 119.030516][ C0] ? _raw_spin_unlock+0x4c/0x70 [ 119.035391][ C0] ? finish_task_switch+0x16b/0x7c0 [ 119.040611][ C0] ? switch_mm_irqs_off+0x32d/0x960 [ 119.045806][ C0] ? __schedule+0xbea/0x14b0 [ 119.050400][ C0] process_one_work+0x717/0xc30 [ 119.055248][ C0] worker_thread+0xa4d/0x11d0 [ 119.059939][ C0] kthread+0x281/0x320 [ 119.064010][ C0] ? __cfi_worker_thread+0x10/0x10 [ 119.069112][ C0] ? __cfi_kthread+0x10/0x10 [ 119.073698][ C0] ret_from_fork+0x1f/0x30 [ 119.078112][ C0] [ 119.081124][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 [ 119.081162][ C0] FAULT_INJECTION: forcing a failure. [ 119.081162][ C0] name failslab, interval 1, probability 100, space 0, times -1 [ 119.088154][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 119.111033][ C1] Call Trace: [ 119.114309][ C1] [ 119.117147][ C1] __dump_stack+0x21/0x24 [ 119.121480][ C1] dump_stack_lvl+0x110/0x170 [ 119.126165][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 119.131185][ C1] ? calc_wheel_index+0x1b5/0x8d0 [ 119.136209][ C1] ? timer_update_keys+0xb0/0xb0 [ 119.141169][ C1] dump_stack+0x15/0x24 [ 119.145324][ C1] should_fail_ex+0x3bf/0x510 [ 119.150008][ C1] __should_failslab+0xac/0xf0 [ 119.154774][ C1] should_failslab+0x9/0x20 [ 119.159271][ C1] kmem_cache_alloc_node+0x42/0x330 [ 119.164469][ C1] ? __alloc_skb+0xe8/0x4a0 [ 119.168966][ C1] __alloc_skb+0xe8/0x4a0 [ 119.173291][ C1] ndisc_send_rs+0x31d/0x870 [ 119.177878][ C1] ? ipv6_get_lladdr+0x1be/0x200 [ 119.182816][ C1] addrconf_rs_timer+0x35a/0x600 [ 119.187752][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 119.193206][ C1] ? _raw_spin_lock_irq+0x95/0xf0 [ 119.198227][ C1] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 119.203771][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 119.209314][ C1] call_timer_fn+0x46/0x2a0 [ 119.213819][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 119.219274][ C1] __run_timers+0x646/0x9b0 [ 119.223781][ C1] ? calc_index+0x200/0x200 [ 119.228286][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 119.233489][ C1] run_timer_softirq+0x6a/0xf0 [ 119.238265][ C1] handle_softirqs+0x1d7/0x600 [ 119.243048][ C1] __irq_exit_rcu+0x52/0xf0 [ 119.247562][ C1] irq_exit_rcu+0x9/0x10 [ 119.251803][ C1] common_interrupt+0xbe/0xe0 [ 119.256486][ C1] [ 119.259413][ C1] [ 119.262335][ C1] asm_common_interrupt+0x27/0x40 [ 119.267371][ C1] RIP: 0010:default_idle+0xf/0x20 [ 119.272396][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 119.292004][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 119.298076][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 119.306049][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 119.314020][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 119.321988][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 119.330002][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 119.337992][ C1] ? __cfi_default_idle+0x10/0x10 [ 119.343032][ C1] arch_cpu_idle+0x1c/0x20 [ 119.347466][ C1] default_idle_call+0x71/0x1d0 [ 119.352315][ C1] do_idle+0x1f1/0x640 [ 119.356380][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 119.362188][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 119.367387][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 119.373199][ C1] ? complete+0x167/0x1c0 [ 119.377530][ C1] cpu_startup_entry+0x43/0x60 [ 119.382292][ C1] start_secondary+0x119/0x120 [ 119.387055][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 119.392975][ C1] [ 119.395992][ C0] CPU: 0 PID: 316 Comm: kworker/u4:3 Not tainted syzkaller #0 [ 119.396125][ C1] FAULT_INJECTION: forcing a failure. [ 119.396125][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 119.403451][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 119.403465][ C0] Workqueue: events_unbound toggle_allocation_gate [ 119.432819][ C0] Call Trace: [ 119.436099][ C0] [ 119.438937][ C0] __dump_stack+0x21/0x24 [ 119.443275][ C0] dump_stack_lvl+0x110/0x170 [ 119.447950][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 119.452970][ C0] ? calc_wheel_index+0x1b5/0x8d0 [ 119.457996][ C0] ? timer_update_keys+0xb0/0xb0 [ 119.462938][ C0] dump_stack+0x15/0x24 [ 119.467097][ C0] should_fail_ex+0x3bf/0x510 [ 119.471772][ C0] __should_failslab+0xac/0xf0 [ 119.476535][ C0] should_failslab+0x9/0x20 [ 119.481035][ C0] kmem_cache_alloc_node+0x42/0x330 [ 119.486235][ C0] ? __alloc_skb+0xe8/0x4a0 [ 119.490735][ C0] __alloc_skb+0xe8/0x4a0 [ 119.495094][ C0] ndisc_send_rs+0x31d/0x870 [ 119.499697][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 119.504639][ C0] addrconf_rs_timer+0x35a/0x600 [ 119.509579][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 119.515037][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 119.520065][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 119.525611][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 119.531067][ C0] call_timer_fn+0x46/0x2a0 [ 119.535569][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 119.541035][ C0] __run_timers+0x646/0x9b0 [ 119.545542][ C0] ? calc_index+0x200/0x200 [ 119.550045][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 119.555249][ C0] run_timer_softirq+0x6a/0xf0 [ 119.560013][ C0] handle_softirqs+0x1d7/0x600 [ 119.564775][ C0] __irq_exit_rcu+0x52/0xf0 [ 119.569274][ C0] irq_exit_rcu+0x9/0x10 [ 119.573512][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 119.579146][ C0] [ 119.582071][ C0] [ 119.584991][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 119.590978][ C0] RIP: 0010:smp_call_function_many_cond+0x85a/0x940 [ 119.597565][ C0] Code: e6 01 31 ff e8 77 72 09 00 83 e3 01 48 bb 00 00 00 00 00 fc ff df 75 0a e8 43 6e 09 00 e9 38 ff ff ff f3 90 41 0f b6 44 1d 00 <84> c0 75 14 41 f7 07 01 00 00 00 0f 84 1a ff ff ff e8 20 6e 09 00 [ 119.617169][ C0] RSP: 0018:ffffc9000dc9f840 EFLAGS: 00000293 [ 119.623242][ C0] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88810fc9a880 [ 119.631208][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 119.639171][ C0] RBP: ffffc9000dc9f978 R08: ffff8881f6e390d7 R09: 1ffff1103edc721a [ 119.647136][ C0] R10: 0000000000000000 R11: ffffffff8134b650 R12: 1ffff1103edc7218 [ 119.655101][ C0] R13: 1ffff1103ede78a5 R14: 0000000000000001 R15: ffff8881f6f3c528 [ 119.663078][ C0] ? __cfi_x2apic_send_IPI+0x10/0x10 [ 119.668380][ C0] ? __cfi_do_sync_core+0x10/0x10 [ 119.673407][ C0] ? smp_call_function_many+0x40/0x40 [ 119.678776][ C0] ? kmem_cache_alloc_bulk+0xf8/0x3c0 [ 119.684151][ C0] ? text_poke+0x30/0x30 [ 119.688392][ C0] ? text_poke_loc_init+0x105/0x560 [ 119.693591][ C0] ? __cfi_do_sync_core+0x10/0x10 [ 119.698628][ C0] on_each_cpu_cond_mask+0x43/0x80 [ 119.703757][ C0] text_poke_bp_batch+0x1cf/0x600 [ 119.708783][ C0] ? text_poke_loc_init+0x560/0x560 [ 119.713979][ C0] ? __kasan_check_write+0x14/0x20 [ 119.719081][ C0] ? mutex_lock+0x93/0x1b0 [ 119.723498][ C0] ? __cfi_mutex_lock+0x10/0x10 [ 119.728359][ C0] ? text_poke_queue+0xde/0x1a0 [ 119.733226][ C0] text_poke_finish+0x1a/0x30 [ 119.737906][ C0] arch_jump_label_transform_apply+0x15/0x30 [ 119.743887][ C0] __jump_label_update+0x38f/0x3b0 [ 119.749032][ C0] jump_label_update+0x39b/0x450 [ 119.753966][ C0] static_key_enable_cpuslocked+0x126/0x240 [ 119.759876][ C0] static_key_enable+0x1a/0x30 [ 119.764644][ C0] toggle_allocation_gate+0xba/0x440 [ 119.770033][ C0] ? __cfi_toggle_allocation_gate+0x10/0x10 [ 119.775927][ C0] ? _raw_spin_unlock+0x4c/0x70 [ 119.780795][ C0] ? finish_task_switch+0x16b/0x7c0 [ 119.785993][ C0] ? switch_mm_irqs_off+0x32d/0x960 [ 119.791184][ C0] ? __schedule+0xbea/0x14b0 [ 119.795778][ C0] process_one_work+0x717/0xc30 [ 119.800628][ C0] worker_thread+0xa4d/0x11d0 [ 119.805303][ C0] kthread+0x281/0x320 [ 119.809398][ C0] ? __cfi_worker_thread+0x10/0x10 [ 119.814505][ C0] ? __cfi_kthread+0x10/0x10 [ 119.819091][ C0] ret_from_fork+0x1f/0x30 [ 119.823506][ C0] [ 119.826527][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 [ 119.826600][ C0] FAULT_INJECTION: forcing a failure. [ 119.826600][ C0] name failslab, interval 1, probability 100, space 0, times -1 [ 119.833557][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 119.833574][ C1] Call Trace: [ 119.833580][ C1] [ 119.833587][ C1] __dump_stack+0x21/0x24 [ 119.866836][ C1] dump_stack_lvl+0x110/0x170 [ 119.871520][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 119.876543][ C1] ? inet_gro_receive+0xcc5/0x1060 [ 119.881660][ C1] ? __alloc_pages+0x1fa/0x610 [ 119.886422][ C1] dump_stack+0x15/0x24 [ 119.890573][ C1] should_fail_ex+0x3bf/0x510 [ 119.895246][ C1] ? build_skb+0x2a/0x220 [ 119.899571][ C1] __should_failslab+0xac/0xf0 [ 119.904333][ C1] should_failslab+0x9/0x20 [ 119.908856][ C1] kmem_cache_alloc+0x3b/0x320 [ 119.913639][ C1] build_skb+0x2a/0x220 [ 119.917790][ C1] page_to_skb+0x12d/0xb50 [ 119.922205][ C1] receive_buf+0x469/0x4890 [ 119.926717][ C1] ? dump_stack_lvl+0x144/0x170 [ 119.931568][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 119.937119][ C1] ? virtnet_poll_tx+0x550/0x550 [ 119.942060][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 119.947879][ C1] ? __tasklet_schedule+0x20/0x20 [ 119.952896][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 119.958354][ C1] ? detach_buf_split+0x890/0xa90 [ 119.963485][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 119.968438][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 119.973920][ C1] virtnet_poll+0x5c9/0x1150 [ 119.978514][ C1] ? __kasan_check_write+0x14/0x20 [ 119.983623][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 119.988754][ C1] ? virtqueue_poll+0x173/0x220 [ 119.993706][ C1] ? virtnet_poll_tx+0x317/0x550 [ 119.998647][ C1] __napi_poll+0xcd/0x5d0 [ 120.002988][ C1] net_rx_action+0x4a3/0xa90 [ 120.007575][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 120.012688][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 120.017902][ C1] handle_softirqs+0x1d7/0x600 [ 120.022677][ C1] __irq_exit_rcu+0x52/0xf0 [ 120.027184][ C1] irq_exit_rcu+0x9/0x10 [ 120.031425][ C1] common_interrupt+0xbe/0xe0 [ 120.036113][ C1] [ 120.039061][ C1] [ 120.042000][ C1] asm_common_interrupt+0x27/0x40 [ 120.047051][ C1] RIP: 0010:default_idle+0xf/0x20 [ 120.052092][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 120.071699][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 120.077850][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 120.085816][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 120.093781][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 120.101771][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 120.109736][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 120.117706][ C1] ? __cfi_default_idle+0x10/0x10 [ 120.122738][ C1] arch_cpu_idle+0x1c/0x20 [ 120.127161][ C1] default_idle_call+0x71/0x1d0 [ 120.132013][ C1] do_idle+0x1f1/0x640 [ 120.136083][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 120.141891][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 120.147085][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 120.152888][ C1] ? complete+0x167/0x1c0 [ 120.157217][ C1] cpu_startup_entry+0x43/0x60 [ 120.161984][ C1] start_secondary+0x119/0x120 [ 120.166746][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 120.172658][ C1] [ 120.175671][ C0] CPU: 0 PID: 316 Comm: kworker/u4:3 Not tainted syzkaller #0 [ 120.175696][ C1] FAULT_INJECTION: forcing a failure. [ 120.175696][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 120.183125][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 120.183154][ C0] Workqueue: events_unbound toggle_allocation_gate [ 120.212521][ C0] Call Trace: [ 120.215793][ C0] [ 120.218628][ C0] __dump_stack+0x21/0x24 [ 120.222955][ C0] dump_stack_lvl+0x110/0x170 [ 120.227629][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 120.232649][ C0] ? calc_wheel_index+0x1b5/0x8d0 [ 120.237669][ C0] ? timer_update_keys+0xb0/0xb0 [ 120.242606][ C0] dump_stack+0x15/0x24 [ 120.246756][ C0] should_fail_ex+0x3bf/0x510 [ 120.251425][ C0] __should_failslab+0xac/0xf0 [ 120.256188][ C0] should_failslab+0x9/0x20 [ 120.260705][ C0] kmem_cache_alloc_node+0x42/0x330 [ 120.265901][ C0] ? __alloc_skb+0xe8/0x4a0 [ 120.270410][ C0] __alloc_skb+0xe8/0x4a0 [ 120.274753][ C0] ndisc_send_rs+0x31d/0x870 [ 120.279343][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 120.284288][ C0] addrconf_rs_timer+0x35a/0x600 [ 120.289223][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 120.294676][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 120.300131][ C0] call_timer_fn+0x46/0x2a0 [ 120.304643][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 120.310097][ C0] __run_timers+0x646/0x9b0 [ 120.314603][ C0] ? calc_index+0x200/0x200 [ 120.319104][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 120.324304][ C0] run_timer_softirq+0x6a/0xf0 [ 120.329070][ C0] handle_softirqs+0x1d7/0x600 [ 120.333857][ C0] __irq_exit_rcu+0x52/0xf0 [ 120.338367][ C0] irq_exit_rcu+0x9/0x10 [ 120.342603][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 120.348240][ C0] [ 120.351160][ C0] [ 120.354077][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 120.360060][ C0] RIP: 0010:smp_call_function_many_cond+0x85a/0x940 [ 120.366647][ C0] Code: e6 01 31 ff e8 77 72 09 00 83 e3 01 48 bb 00 00 00 00 00 fc ff df 75 0a e8 43 6e 09 00 e9 38 ff ff ff f3 90 41 0f b6 44 1d 00 <84> c0 75 14 41 f7 07 01 00 00 00 0f 84 1a ff ff ff e8 20 6e 09 00 [ 120.386254][ C0] RSP: 0018:ffffc9000dc9f840 EFLAGS: 00000293 [ 120.392329][ C0] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88810fc9a880 [ 120.400294][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 120.408275][ C0] RBP: ffffc9000dc9f978 R08: ffff8881f6e390d7 R09: 1ffff1103edc721a [ 120.416241][ C0] R10: 0000000000000000 R11: ffffffff8134b650 R12: 1ffff1103edc7218 [ 120.424207][ C0] R13: 1ffff1103ede78a5 R14: 0000000000000001 R15: ffff8881f6f3c528 [ 120.432174][ C0] ? __cfi_x2apic_send_IPI+0x10/0x10 [ 120.437490][ C0] ? __cfi_do_sync_core+0x10/0x10 [ 120.442515][ C0] ? smp_call_function_many+0x40/0x40 [ 120.447885][ C0] ? kmem_cache_alloc_bulk+0xf8/0x3c0 [ 120.453279][ C0] ? text_poke+0x30/0x30 [ 120.457516][ C0] ? text_poke_loc_init+0x105/0x560 [ 120.462710][ C0] ? __cfi_do_sync_core+0x10/0x10 [ 120.467734][ C0] on_each_cpu_cond_mask+0x43/0x80 [ 120.472843][ C0] text_poke_bp_batch+0x1cf/0x600 [ 120.477867][ C0] ? text_poke_loc_init+0x560/0x560 [ 120.483066][ C0] ? __kasan_check_write+0x14/0x20 [ 120.488172][ C0] ? mutex_lock+0x93/0x1b0 [ 120.492596][ C0] ? __cfi_mutex_lock+0x10/0x10 [ 120.497451][ C0] ? text_poke_queue+0xde/0x1a0 [ 120.502327][ C0] text_poke_finish+0x1a/0x30 [ 120.507022][ C0] arch_jump_label_transform_apply+0x15/0x30 [ 120.513004][ C0] __jump_label_update+0x38f/0x3b0 [ 120.518119][ C0] jump_label_update+0x39b/0x450 [ 120.523057][ C0] static_key_enable_cpuslocked+0x126/0x240 [ 120.528951][ C0] static_key_enable+0x1a/0x30 [ 120.533711][ C0] toggle_allocation_gate+0xba/0x440 [ 120.538992][ C0] ? __cfi_toggle_allocation_gate+0x10/0x10 [ 120.544881][ C0] ? _raw_spin_unlock+0x4c/0x70 [ 120.549731][ C0] ? finish_task_switch+0x16b/0x7c0 [ 120.554929][ C0] ? switch_mm_irqs_off+0x32d/0x960 [ 120.560121][ C0] ? __schedule+0xbea/0x14b0 [ 120.564714][ C0] process_one_work+0x717/0xc30 [ 120.569561][ C0] worker_thread+0xa4d/0x11d0 [ 120.574238][ C0] kthread+0x281/0x320 [ 120.578305][ C0] ? __cfi_worker_thread+0x10/0x10 [ 120.583415][ C0] ? __cfi_kthread+0x10/0x10 [ 120.588001][ C0] ret_from_fork+0x1f/0x30 [ 120.592416][ C0] [ 120.595444][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 [ 120.595493][ C0] FAULT_INJECTION: forcing a failure. [ 120.595493][ C0] name failslab, interval 1, probability 100, space 0, times -1 [ 120.602464][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 120.602477][ C1] Call Trace: [ 120.602483][ C1] [ 120.602489][ C1] __dump_stack+0x21/0x24 [ 120.635728][ C1] dump_stack_lvl+0x110/0x170 [ 120.640416][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 120.645437][ C1] ? inet_gro_receive+0xcc5/0x1060 [ 120.650552][ C1] ? __alloc_pages+0x1fa/0x610 [ 120.655343][ C1] dump_stack+0x15/0x24 [ 120.659499][ C1] should_fail_ex+0x3bf/0x510 [ 120.664174][ C1] ? build_skb+0x2a/0x220 [ 120.668499][ C1] __should_failslab+0xac/0xf0 [ 120.673264][ C1] should_failslab+0x9/0x20 [ 120.677760][ C1] kmem_cache_alloc+0x3b/0x320 [ 120.682523][ C1] build_skb+0x2a/0x220 [ 120.686672][ C1] page_to_skb+0x12d/0xb50 [ 120.691092][ C1] receive_buf+0x469/0x4890 [ 120.695617][ C1] ? dump_stack_lvl+0x144/0x170 [ 120.700481][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 120.706039][ C1] ? virtnet_poll_tx+0x550/0x550 [ 120.710991][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 120.716802][ C1] ? __tasklet_schedule+0x20/0x20 [ 120.721824][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 120.727282][ C1] ? detach_buf_split+0x890/0xa90 [ 120.732308][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 120.737243][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 120.742701][ C1] virtnet_poll+0x5c9/0x1150 [ 120.747292][ C1] ? __kasan_check_write+0x14/0x20 [ 120.752398][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 120.757423][ C1] ? virtqueue_poll+0x173/0x220 [ 120.762273][ C1] ? virtnet_poll_tx+0x317/0x550 [ 120.767213][ C1] __napi_poll+0xcd/0x5d0 [ 120.771549][ C1] net_rx_action+0x4a3/0xa90 [ 120.776134][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 120.781257][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 120.786472][ C1] handle_softirqs+0x1d7/0x600 [ 120.791255][ C1] __irq_exit_rcu+0x52/0xf0 [ 120.795755][ C1] irq_exit_rcu+0x9/0x10 [ 120.799990][ C1] common_interrupt+0xbe/0xe0 [ 120.804668][ C1] [ 120.807589][ C1] [ 120.810512][ C1] asm_common_interrupt+0x27/0x40 [ 120.815540][ C1] RIP: 0010:default_idle+0xf/0x20 [ 120.820567][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 120.840166][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 120.846233][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 120.854200][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 120.862172][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 120.870139][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 120.878103][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 120.886074][ C1] ? __cfi_default_idle+0x10/0x10 [ 120.891105][ C1] arch_cpu_idle+0x1c/0x20 [ 120.895715][ C1] default_idle_call+0x71/0x1d0 [ 120.900683][ C1] do_idle+0x1f1/0x640 [ 120.904775][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 120.910589][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 120.915788][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 120.921630][ C1] ? complete+0x167/0x1c0 [ 120.925963][ C1] cpu_startup_entry+0x43/0x60 [ 120.930727][ C1] start_secondary+0x119/0x120 [ 120.935513][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 120.941432][ C1] [ 120.944457][ C0] CPU: 0 PID: 316 Comm: kworker/u4:3 Not tainted syzkaller #0 [ 120.944485][ C1] FAULT_INJECTION: forcing a failure. [ 120.944485][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 120.951920][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 120.951936][ C0] Workqueue: events_unbound toggle_allocation_gate [ 120.981345][ C0] Call Trace: [ 120.984621][ C0] [ 120.987459][ C0] __dump_stack+0x21/0x24 [ 120.991823][ C0] dump_stack_lvl+0x110/0x170 [ 120.996503][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 121.001527][ C0] ? calc_wheel_index+0x1b5/0x8d0 [ 121.006562][ C0] ? timer_update_keys+0xb0/0xb0 [ 121.011504][ C0] dump_stack+0x15/0x24 [ 121.015666][ C0] should_fail_ex+0x3bf/0x510 [ 121.020339][ C0] __should_failslab+0xac/0xf0 [ 121.025107][ C0] should_failslab+0x9/0x20 [ 121.029607][ C0] kmem_cache_alloc_node+0x42/0x330 [ 121.034810][ C0] ? __alloc_skb+0xe8/0x4a0 [ 121.039310][ C0] __alloc_skb+0xe8/0x4a0 [ 121.043662][ C0] ndisc_send_rs+0x31d/0x870 [ 121.048255][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 121.053198][ C0] addrconf_rs_timer+0x35a/0x600 [ 121.058146][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 121.063607][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 121.068639][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 121.074186][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 121.079645][ C0] call_timer_fn+0x46/0x2a0 [ 121.084153][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 121.089610][ C0] __run_timers+0x646/0x9b0 [ 121.094118][ C0] ? calc_index+0x200/0x200 [ 121.098623][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 121.103829][ C0] run_timer_softirq+0x6a/0xf0 [ 121.108617][ C0] handle_softirqs+0x1d7/0x600 [ 121.113380][ C0] __irq_exit_rcu+0x52/0xf0 [ 121.117879][ C0] irq_exit_rcu+0x9/0x10 [ 121.122115][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 121.127755][ C0] [ 121.130677][ C0] [ 121.133621][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 121.139636][ C0] RIP: 0010:smp_call_function_many_cond+0x85a/0x940 [ 121.146225][ C0] Code: e6 01 31 ff e8 77 72 09 00 83 e3 01 48 bb 00 00 00 00 00 fc ff df 75 0a e8 43 6e 09 00 e9 38 ff ff ff f3 90 41 0f b6 44 1d 00 <84> c0 75 14 41 f7 07 01 00 00 00 0f 84 1a ff ff ff e8 20 6e 09 00 [ 121.165837][ C0] RSP: 0018:ffffc9000dc9f840 EFLAGS: 00000293 [ 121.171905][ C0] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88810fc9a880 [ 121.179874][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 121.187844][ C0] RBP: ffffc9000dc9f978 R08: ffff8881f6e390d7 R09: 1ffff1103edc721a [ 121.195823][ C0] R10: 0000000000000000 R11: ffffffff8134b650 R12: 1ffff1103edc7218 [ 121.203793][ C0] R13: 1ffff1103ede78a5 R14: 0000000000000001 R15: ffff8881f6f3c528 [ 121.211767][ C0] ? __cfi_x2apic_send_IPI+0x10/0x10 [ 121.217066][ C0] ? __cfi_do_sync_core+0x10/0x10 [ 121.222114][ C0] ? smp_call_function_many+0x40/0x40 [ 121.227505][ C0] ? kmem_cache_alloc_bulk+0xf8/0x3c0 [ 121.232891][ C0] ? text_poke+0x30/0x30 [ 121.237133][ C0] ? text_poke_loc_init+0x105/0x560 [ 121.242332][ C0] ? __cfi_do_sync_core+0x10/0x10 [ 121.247363][ C0] on_each_cpu_cond_mask+0x43/0x80 [ 121.252474][ C0] text_poke_bp_batch+0x1cf/0x600 [ 121.257519][ C0] ? text_poke_loc_init+0x560/0x560 [ 121.262714][ C0] ? __kasan_check_write+0x14/0x20 [ 121.267821][ C0] ? mutex_lock+0x93/0x1b0 [ 121.272240][ C0] ? __cfi_mutex_lock+0x10/0x10 [ 121.277093][ C0] ? text_poke_queue+0xde/0x1a0 [ 121.281964][ C0] text_poke_finish+0x1a/0x30 [ 121.286640][ C0] arch_jump_label_transform_apply+0x15/0x30 [ 121.292624][ C0] __jump_label_update+0x38f/0x3b0 [ 121.297746][ C0] jump_label_update+0x39b/0x450 [ 121.302687][ C0] static_key_enable_cpuslocked+0x126/0x240 [ 121.308583][ C0] static_key_enable+0x1a/0x30 [ 121.313372][ C0] toggle_allocation_gate+0xba/0x440 [ 121.318659][ C0] ? __cfi_toggle_allocation_gate+0x10/0x10 [ 121.324575][ C0] ? _raw_spin_unlock+0x4c/0x70 [ 121.329424][ C0] ? finish_task_switch+0x16b/0x7c0 [ 121.334628][ C0] ? switch_mm_irqs_off+0x32d/0x960 [ 121.339822][ C0] ? __schedule+0xbea/0x14b0 [ 121.344414][ C0] process_one_work+0x717/0xc30 [ 121.349262][ C0] worker_thread+0xa4d/0x11d0 [ 121.353953][ C0] kthread+0x281/0x320 [ 121.358036][ C0] ? __cfi_worker_thread+0x10/0x10 [ 121.363148][ C0] ? __cfi_kthread+0x10/0x10 [ 121.367750][ C0] ret_from_fork+0x1f/0x30 [ 121.372193][ C0] [ 121.375207][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 [ 121.375249][ C0] FAULT_INJECTION: forcing a failure. [ 121.375249][ C0] name failslab, interval 1, probability 100, space 0, times -1 [ 121.382238][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 121.382252][ C1] Call Trace: [ 121.382258][ C1] [ 121.382265][ C1] __dump_stack+0x21/0x24 [ 121.415534][ C1] dump_stack_lvl+0x110/0x170 [ 121.420216][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 121.425240][ C1] ? inet_gro_receive+0xcc5/0x1060 [ 121.430355][ C1] ? __alloc_pages+0x1fa/0x610 [ 121.435128][ C1] dump_stack+0x15/0x24 [ 121.439284][ C1] should_fail_ex+0x3bf/0x510 [ 121.443957][ C1] ? build_skb+0x2a/0x220 [ 121.448282][ C1] __should_failslab+0xac/0xf0 [ 121.453045][ C1] should_failslab+0x9/0x20 [ 121.457549][ C1] kmem_cache_alloc+0x3b/0x320 [ 121.462320][ C1] build_skb+0x2a/0x220 [ 121.466477][ C1] page_to_skb+0x12d/0xb50 [ 121.470900][ C1] receive_buf+0x469/0x4890 [ 121.475405][ C1] ? dump_stack_lvl+0x144/0x170 [ 121.480353][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 121.485900][ C1] ? virtnet_poll_tx+0x550/0x550 [ 121.490841][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 121.496645][ C1] ? __tasklet_schedule+0x20/0x20 [ 121.501690][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 121.507146][ C1] ? detach_buf_split+0x890/0xa90 [ 121.512171][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 121.517108][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 121.522565][ C1] virtnet_poll+0x5c9/0x1150 [ 121.527246][ C1] ? __kasan_check_write+0x14/0x20 [ 121.532384][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 121.537407][ C1] ? virtqueue_poll+0x173/0x220 [ 121.542253][ C1] ? virtnet_poll_tx+0x317/0x550 [ 121.547188][ C1] __napi_poll+0xcd/0x5d0 [ 121.551550][ C1] net_rx_action+0x4a3/0xa90 [ 121.556153][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 121.561259][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 121.566464][ C1] handle_softirqs+0x1d7/0x600 [ 121.571230][ C1] __irq_exit_rcu+0x52/0xf0 [ 121.575732][ C1] irq_exit_rcu+0x9/0x10 [ 121.580057][ C1] common_interrupt+0xbe/0xe0 [ 121.584739][ C1] [ 121.587666][ C1] [ 121.590589][ C1] asm_common_interrupt+0x27/0x40 [ 121.595620][ C1] RIP: 0010:default_idle+0xf/0x20 [ 121.600690][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 121.620292][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 121.626356][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 121.634340][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 121.642311][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 121.650277][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 121.658241][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 121.666302][ C1] ? __cfi_default_idle+0x10/0x10 [ 121.671423][ C1] arch_cpu_idle+0x1c/0x20 [ 121.675833][ C1] default_idle_call+0x71/0x1d0 [ 121.680683][ C1] do_idle+0x1f1/0x640 [ 121.684756][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 121.690570][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 121.695783][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 121.701605][ C1] ? complete+0x167/0x1c0 [ 121.705940][ C1] cpu_startup_entry+0x43/0x60 [ 121.710698][ C1] start_secondary+0x119/0x120 [ 121.715595][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 121.721489][ C1] [ 121.724499][ C0] CPU: 0 PID: 316 Comm: kworker/u4:3 Not tainted syzkaller #0 [ 121.724524][ C1] FAULT_INJECTION: forcing a failure. [ 121.724524][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 121.731956][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 121.731970][ C0] Workqueue: events_unbound toggle_allocation_gate [ 121.761361][ C0] Call Trace: [ 121.764633][ C0] [ 121.767468][ C0] __dump_stack+0x21/0x24 [ 121.771799][ C0] dump_stack_lvl+0x110/0x170 [ 121.776472][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 121.781492][ C0] ? calc_wheel_index+0x1b5/0x8d0 [ 121.786546][ C0] ? timer_update_keys+0xb0/0xb0 [ 121.791484][ C0] dump_stack+0x15/0x24 [ 121.795641][ C0] should_fail_ex+0x3bf/0x510 [ 121.800314][ C0] __should_failslab+0xac/0xf0 [ 121.805076][ C0] should_failslab+0x9/0x20 [ 121.809582][ C0] kmem_cache_alloc_node+0x42/0x330 [ 121.814781][ C0] ? __alloc_skb+0xe8/0x4a0 [ 121.819277][ C0] __alloc_skb+0xe8/0x4a0 [ 121.823609][ C0] ndisc_send_rs+0x31d/0x870 [ 121.828192][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 121.833134][ C0] addrconf_rs_timer+0x35a/0x600 [ 121.838073][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 121.843537][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 121.848559][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 121.854110][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 121.859573][ C0] call_timer_fn+0x46/0x2a0 [ 121.864081][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 121.869544][ C0] __run_timers+0x646/0x9b0 [ 121.874136][ C0] ? calc_index+0x200/0x200 [ 121.878639][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 121.883875][ C0] run_timer_softirq+0x6a/0xf0 [ 121.888645][ C0] handle_softirqs+0x1d7/0x600 [ 121.893409][ C0] __irq_exit_rcu+0x52/0xf0 [ 121.897908][ C0] irq_exit_rcu+0x9/0x10 [ 121.902149][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 121.907788][ C0] [ 121.910769][ C0] [ 121.913695][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 121.919686][ C0] RIP: 0010:smp_call_function_many_cond+0x85a/0x940 [ 121.926280][ C0] Code: e6 01 31 ff e8 77 72 09 00 83 e3 01 48 bb 00 00 00 00 00 fc ff df 75 0a e8 43 6e 09 00 e9 38 ff ff ff f3 90 41 0f b6 44 1d 00 <84> c0 75 14 41 f7 07 01 00 00 00 0f 84 1a ff ff ff e8 20 6e 09 00 [ 121.945882][ C0] RSP: 0018:ffffc9000dc9f840 EFLAGS: 00000293 [ 121.951947][ C0] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88810fc9a880 [ 121.959915][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 121.967882][ C0] RBP: ffffc9000dc9f978 R08: ffff8881f6e390d7 R09: 1ffff1103edc721a [ 121.975849][ C0] R10: 0000000000000000 R11: ffffffff8134b650 R12: 1ffff1103edc7218 [ 121.983817][ C0] R13: 1ffff1103ede78a5 R14: 0000000000000001 R15: ffff8881f6f3c528 [ 121.991788][ C0] ? __cfi_x2apic_send_IPI+0x10/0x10 [ 121.997100][ C0] ? __cfi_do_sync_core+0x10/0x10 [ 122.002124][ C0] ? smp_call_function_many+0x40/0x40 [ 122.007491][ C0] ? kmem_cache_alloc_bulk+0xf8/0x3c0 [ 122.012863][ C0] ? text_poke+0x30/0x30 [ 122.017100][ C0] ? text_poke_loc_init+0x105/0x560 [ 122.022306][ C0] ? __cfi_do_sync_core+0x10/0x10 [ 122.027329][ C0] on_each_cpu_cond_mask+0x43/0x80 [ 122.032440][ C0] text_poke_bp_batch+0x1cf/0x600 [ 122.037464][ C0] ? text_poke_loc_init+0x560/0x560 [ 122.042662][ C0] ? __kasan_check_write+0x14/0x20 [ 122.047777][ C0] ? mutex_lock+0x93/0x1b0 [ 122.052196][ C0] ? __cfi_mutex_lock+0x10/0x10 [ 122.057059][ C0] ? text_poke_queue+0xde/0x1a0 [ 122.061933][ C0] text_poke_finish+0x1a/0x30 [ 122.066618][ C0] arch_jump_label_transform_apply+0x15/0x30 [ 122.072607][ C0] __jump_label_update+0x38f/0x3b0 [ 122.077725][ C0] jump_label_update+0x39b/0x450 [ 122.082663][ C0] static_key_enable_cpuslocked+0x126/0x240 [ 122.088571][ C0] static_key_enable+0x1a/0x30 [ 122.093360][ C0] toggle_allocation_gate+0xba/0x440 [ 122.098650][ C0] ? __cfi_toggle_allocation_gate+0x10/0x10 [ 122.104548][ C0] ? _raw_spin_unlock+0x4c/0x70 [ 122.109400][ C0] ? finish_task_switch+0x16b/0x7c0 [ 122.114603][ C0] ? switch_mm_irqs_off+0x32d/0x960 [ 122.119888][ C0] ? __schedule+0xbea/0x14b0 [ 122.124571][ C0] process_one_work+0x717/0xc30 [ 122.129423][ C0] worker_thread+0xa4d/0x11d0 [ 122.134105][ C0] kthread+0x281/0x320 [ 122.138195][ C0] ? __cfi_worker_thread+0x10/0x10 [ 122.143303][ C0] ? __cfi_kthread+0x10/0x10 [ 122.147890][ C0] ret_from_fork+0x1f/0x30 [ 122.152307][ C0] [ 122.155320][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 [ 122.155367][ C0] FAULT_INJECTION: forcing a failure. [ 122.155367][ C0] name failslab, interval 1, probability 100, space 0, times -1 [ 122.162362][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 122.162375][ C1] Call Trace: [ 122.162381][ C1] [ 122.162387][ C1] __dump_stack+0x21/0x24 [ 122.195748][ C1] dump_stack_lvl+0x110/0x170 [ 122.200433][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 122.205464][ C1] ? inet_gro_receive+0xcc5/0x1060 [ 122.210581][ C1] ? __alloc_pages+0x1fa/0x610 [ 122.215355][ C1] dump_stack+0x15/0x24 [ 122.219517][ C1] should_fail_ex+0x3bf/0x510 [ 122.224187][ C1] ? build_skb+0x2a/0x220 [ 122.228514][ C1] __should_failslab+0xac/0xf0 [ 122.233281][ C1] should_failslab+0x9/0x20 [ 122.237784][ C1] kmem_cache_alloc+0x3b/0x320 [ 122.242559][ C1] build_skb+0x2a/0x220 [ 122.246721][ C1] page_to_skb+0x12d/0xb50 [ 122.251185][ C1] receive_buf+0x469/0x4890 [ 122.255700][ C1] ? dump_stack_lvl+0x144/0x170 [ 122.260563][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 122.266124][ C1] ? virtnet_poll_tx+0x550/0x550 [ 122.271065][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 122.276880][ C1] ? __tasklet_schedule+0x20/0x20 [ 122.281919][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 122.287382][ C1] ? detach_buf_split+0x890/0xa90 [ 122.292412][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 122.297352][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 122.302822][ C1] virtnet_poll+0x5c9/0x1150 [ 122.307420][ C1] ? __kasan_check_write+0x14/0x20 [ 122.312533][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 122.317561][ C1] ? virtqueue_poll+0x173/0x220 [ 122.322415][ C1] ? virtnet_poll_tx+0x317/0x550 [ 122.327357][ C1] __napi_poll+0xcd/0x5d0 [ 122.331719][ C1] net_rx_action+0x4a3/0xa90 [ 122.336307][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 122.341419][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 122.346629][ C1] handle_softirqs+0x1d7/0x600 [ 122.351394][ C1] __irq_exit_rcu+0x52/0xf0 [ 122.355903][ C1] irq_exit_rcu+0x9/0x10 [ 122.360142][ C1] common_interrupt+0xbe/0xe0 [ 122.364824][ C1] [ 122.367748][ C1] [ 122.370673][ C1] asm_common_interrupt+0x27/0x40 [ 122.375707][ C1] RIP: 0010:default_idle+0xf/0x20 [ 122.380870][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 122.400486][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 122.406551][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 122.414523][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 122.422489][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 122.430458][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 122.438426][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 122.446409][ C1] ? __cfi_default_idle+0x10/0x10 [ 122.451449][ C1] arch_cpu_idle+0x1c/0x20 [ 122.455871][ C1] default_idle_call+0x71/0x1d0 [ 122.460718][ C1] do_idle+0x1f1/0x640 [ 122.464785][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 122.470595][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 122.475803][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 122.481612][ C1] ? complete+0x167/0x1c0 [ 122.485950][ C1] cpu_startup_entry+0x43/0x60 [ 122.490708][ C1] start_secondary+0x119/0x120 [ 122.495473][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 122.501366][ C1] [ 122.504378][ C0] CPU: 0 PID: 316 Comm: kworker/u4:3 Not tainted syzkaller #0 [ 122.504402][ C1] FAULT_INJECTION: forcing a failure. [ 122.504402][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 122.511833][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 122.511847][ C0] Workqueue: events_unbound toggle_allocation_gate [ 122.541189][ C0] Call Trace: [ 122.544461][ C0] [ 122.547308][ C0] __dump_stack+0x21/0x24 [ 122.551656][ C0] dump_stack_lvl+0x110/0x170 [ 122.556351][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 122.561377][ C0] ? calc_wheel_index+0x1b5/0x8d0 [ 122.566405][ C0] ? timer_update_keys+0xb0/0xb0 [ 122.571352][ C0] dump_stack+0x15/0x24 [ 122.575513][ C0] should_fail_ex+0x3bf/0x510 [ 122.580185][ C0] __should_failslab+0xac/0xf0 [ 122.584957][ C0] should_failslab+0x9/0x20 [ 122.589471][ C0] kmem_cache_alloc_node+0x42/0x330 [ 122.594689][ C0] ? __alloc_skb+0xe8/0x4a0 [ 122.599190][ C0] __alloc_skb+0xe8/0x4a0 [ 122.603559][ C0] ndisc_send_rs+0x31d/0x870 [ 122.608153][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 122.613113][ C0] addrconf_rs_timer+0x35a/0x600 [ 122.618051][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 122.623507][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 122.628530][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 122.634075][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 122.639542][ C0] call_timer_fn+0x46/0x2a0 [ 122.644047][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 122.649510][ C0] __run_timers+0x646/0x9b0 [ 122.654020][ C0] ? calc_index+0x200/0x200 [ 122.658525][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 122.663733][ C0] run_timer_softirq+0x6a/0xf0 [ 122.668500][ C0] handle_softirqs+0x1d7/0x600 [ 122.673261][ C0] __irq_exit_rcu+0x52/0xf0 [ 122.677763][ C0] irq_exit_rcu+0x9/0x10 [ 122.682069][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 122.687908][ C0] [ 122.690830][ C0] [ 122.693843][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 122.699825][ C0] RIP: 0010:smp_call_function_many_cond+0x85a/0x940 [ 122.706412][ C0] Code: e6 01 31 ff e8 77 72 09 00 83 e3 01 48 bb 00 00 00 00 00 fc ff df 75 0a e8 43 6e 09 00 e9 38 ff ff ff f3 90 41 0f b6 44 1d 00 <84> c0 75 14 41 f7 07 01 00 00 00 0f 84 1a ff ff ff e8 20 6e 09 00 [ 122.726098][ C0] RSP: 0018:ffffc9000dc9f840 EFLAGS: 00000293 [ 122.732185][ C0] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88810fc9a880 [ 122.740152][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 122.748130][ C0] RBP: ffffc9000dc9f978 R08: ffff8881f6e390d7 R09: 1ffff1103edc721a [ 122.756183][ C0] R10: 0000000000000000 R11: ffffffff8134b650 R12: 1ffff1103edc7218 [ 122.764147][ C0] R13: 1ffff1103ede78a5 R14: 0000000000000001 R15: ffff8881f6f3c528 [ 122.772118][ C0] ? __cfi_x2apic_send_IPI+0x10/0x10 [ 122.777412][ C0] ? __cfi_do_sync_core+0x10/0x10 [ 122.782435][ C0] ? smp_call_function_many+0x40/0x40 [ 122.787805][ C0] ? kmem_cache_alloc_bulk+0xf8/0x3c0 [ 122.793177][ C0] ? text_poke+0x30/0x30 [ 122.797414][ C0] ? text_poke_loc_init+0x105/0x560 [ 122.802608][ C0] ? __cfi_do_sync_core+0x10/0x10 [ 122.807636][ C0] on_each_cpu_cond_mask+0x43/0x80 [ 122.812746][ C0] text_poke_bp_batch+0x1cf/0x600 [ 122.817773][ C0] ? text_poke_loc_init+0x560/0x560 [ 122.822974][ C0] ? __kasan_check_write+0x14/0x20 [ 122.828081][ C0] ? mutex_lock+0x93/0x1b0 [ 122.832501][ C0] ? __cfi_mutex_lock+0x10/0x10 [ 122.837354][ C0] ? text_poke_queue+0xde/0x1a0 [ 122.842224][ C0] text_poke_finish+0x1a/0x30 [ 122.846898][ C0] arch_jump_label_transform_apply+0x15/0x30 [ 122.852885][ C0] __jump_label_update+0x38f/0x3b0 [ 122.857997][ C0] jump_label_update+0x39b/0x450 [ 122.862931][ C0] static_key_enable_cpuslocked+0x126/0x240 [ 122.868830][ C0] static_key_enable+0x1a/0x30 [ 122.873595][ C0] toggle_allocation_gate+0xba/0x440 [ 122.878877][ C0] ? __cfi_toggle_allocation_gate+0x10/0x10 [ 122.884772][ C0] ? _raw_spin_unlock+0x4c/0x70 [ 122.889629][ C0] ? finish_task_switch+0x16b/0x7c0 [ 122.894857][ C0] ? switch_mm_irqs_off+0x32d/0x960 [ 122.900054][ C0] ? __schedule+0xbea/0x14b0 [ 122.904646][ C0] process_one_work+0x717/0xc30 [ 122.909491][ C0] worker_thread+0xa4d/0x11d0 [ 122.914165][ C0] kthread+0x281/0x320 [ 122.918227][ C0] ? __cfi_worker_thread+0x10/0x10 [ 122.923509][ C0] ? __cfi_kthread+0x10/0x10 [ 122.928094][ C0] ret_from_fork+0x1f/0x30 [ 122.932511][ C0] [ 122.935524][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 [ 122.935570][ C0] FAULT_INJECTION: forcing a failure. [ 122.935570][ C0] name failslab, interval 1, probability 100, space 0, times -1 [ 122.942550][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 122.942561][ C1] Call Trace: [ 122.942567][ C1] [ 122.942574][ C1] __dump_stack+0x21/0x24 [ 122.975846][ C1] dump_stack_lvl+0x110/0x170 [ 122.980526][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 122.985545][ C1] ? inet_gro_receive+0xcc5/0x1060 [ 122.990658][ C1] ? __alloc_pages+0x1fa/0x610 [ 122.995427][ C1] dump_stack+0x15/0x24 [ 122.999581][ C1] should_fail_ex+0x3bf/0x510 [ 123.004253][ C1] ? build_skb+0x2a/0x220 [ 123.008585][ C1] __should_failslab+0xac/0xf0 [ 123.013345][ C1] should_failslab+0x9/0x20 [ 123.017854][ C1] kmem_cache_alloc+0x3b/0x320 [ 123.022658][ C1] build_skb+0x2a/0x220 [ 123.026896][ C1] page_to_skb+0x12d/0xb50 [ 123.031342][ C1] receive_buf+0x469/0x4890 [ 123.035869][ C1] ? dump_stack_lvl+0x144/0x170 [ 123.040767][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 123.046311][ C1] ? virtnet_poll_tx+0x550/0x550 [ 123.051251][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 123.057063][ C1] ? __tasklet_schedule+0x20/0x20 [ 123.062104][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 123.067565][ C1] ? detach_buf_split+0x890/0xa90 [ 123.072593][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 123.077532][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 123.082988][ C1] virtnet_poll+0x5c9/0x1150 [ 123.087584][ C1] ? __kasan_check_write+0x14/0x20 [ 123.092696][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 123.097727][ C1] ? virtqueue_poll+0x173/0x220 [ 123.102581][ C1] ? virtnet_poll_tx+0x317/0x550 [ 123.107521][ C1] __napi_poll+0xcd/0x5d0 [ 123.111853][ C1] net_rx_action+0x4a3/0xa90 [ 123.116436][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 123.121553][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 123.126760][ C1] handle_softirqs+0x1d7/0x600 [ 123.131547][ C1] __irq_exit_rcu+0x52/0xf0 [ 123.136047][ C1] irq_exit_rcu+0x9/0x10 [ 123.140297][ C1] common_interrupt+0xbe/0xe0 [ 123.145068][ C1] [ 123.147994][ C1] [ 123.150915][ C1] asm_common_interrupt+0x27/0x40 [ 123.155943][ C1] RIP: 0010:default_idle+0xf/0x20 [ 123.160968][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 123.180700][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 123.186765][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 123.194731][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 123.202697][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 123.210669][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 123.218672][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 123.226644][ C1] ? __cfi_default_idle+0x10/0x10 [ 123.231695][ C1] arch_cpu_idle+0x1c/0x20 [ 123.236110][ C1] default_idle_call+0x71/0x1d0 [ 123.240962][ C1] do_idle+0x1f1/0x640 [ 123.245028][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 123.250836][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 123.256034][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 123.261840][ C1] ? complete+0x167/0x1c0 [ 123.266168][ C1] cpu_startup_entry+0x43/0x60 [ 123.270930][ C1] start_secondary+0x119/0x120 [ 123.275693][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 123.281586][ C1] [ 123.284602][ C0] CPU: 0 PID: 316 Comm: kworker/u4:3 Not tainted syzkaller #0 [ 123.284638][ C1] FAULT_INJECTION: forcing a failure. [ 123.284638][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 123.292056][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 123.292070][ C0] Workqueue: events_unbound toggle_allocation_gate [ 123.321414][ C0] Call Trace: [ 123.325735][ C0] [ 123.328612][ C0] __dump_stack+0x21/0x24 [ 123.332951][ C0] dump_stack_lvl+0x110/0x170 [ 123.337644][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 123.342674][ C0] ? calc_wheel_index+0x1b5/0x8d0 [ 123.347696][ C0] ? timer_update_keys+0xb0/0xb0 [ 123.352633][ C0] dump_stack+0x15/0x24 [ 123.356793][ C0] should_fail_ex+0x3bf/0x510 [ 123.361464][ C0] __should_failslab+0xac/0xf0 [ 123.366223][ C0] should_failslab+0x9/0x20 [ 123.370717][ C0] kmem_cache_alloc_node+0x42/0x330 [ 123.375916][ C0] ? __alloc_skb+0xe8/0x4a0 [ 123.380416][ C0] __alloc_skb+0xe8/0x4a0 [ 123.384758][ C0] ndisc_send_rs+0x31d/0x870 [ 123.389342][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 123.394285][ C0] addrconf_rs_timer+0x35a/0x600 [ 123.399216][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 123.404674][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 123.410128][ C0] call_timer_fn+0x46/0x2a0 [ 123.414633][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 123.420101][ C0] __run_timers+0x646/0x9b0 [ 123.424607][ C0] ? calc_index+0x200/0x200 [ 123.429136][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 123.434333][ C0] run_timer_softirq+0x6a/0xf0 [ 123.439105][ C0] handle_softirqs+0x1d7/0x600 [ 123.443862][ C0] __irq_exit_rcu+0x52/0xf0 [ 123.448357][ C0] irq_exit_rcu+0x9/0x10 [ 123.452592][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 123.458233][ C0] [ 123.461155][ C0] [ 123.464073][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 123.470058][ C0] RIP: 0010:smp_call_function_many_cond+0x85a/0x940 [ 123.476652][ C0] Code: e6 01 31 ff e8 77 72 09 00 83 e3 01 48 bb 00 00 00 00 00 fc ff df 75 0a e8 43 6e 09 00 e9 38 ff ff ff f3 90 41 0f b6 44 1d 00 <84> c0 75 14 41 f7 07 01 00 00 00 0f 84 1a ff ff ff e8 20 6e 09 00 [ 123.496251][ C0] RSP: 0018:ffffc9000dc9f840 EFLAGS: 00000293 [ 123.502316][ C0] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88810fc9a880 [ 123.510278][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 123.518241][ C0] RBP: ffffc9000dc9f978 R08: ffff8881f6e390d7 R09: 1ffff1103edc721a [ 123.526209][ C0] R10: 0000000000000000 R11: ffffffff8134b650 R12: 1ffff1103edc7218 [ 123.534176][ C0] R13: 1ffff1103ede78a5 R14: 0000000000000001 R15: ffff8881f6f3c528 [ 123.542316][ C0] ? __cfi_x2apic_send_IPI+0x10/0x10 [ 123.547609][ C0] ? __cfi_do_sync_core+0x10/0x10 [ 123.552673][ C0] ? smp_call_function_many+0x40/0x40 [ 123.558043][ C0] ? kmem_cache_alloc_bulk+0xf8/0x3c0 [ 123.563419][ C0] ? text_poke+0x30/0x30 [ 123.567660][ C0] ? text_poke_loc_init+0x105/0x560 [ 123.572856][ C0] ? __cfi_do_sync_core+0x10/0x10 [ 123.577877][ C0] on_each_cpu_cond_mask+0x43/0x80 [ 123.582984][ C0] text_poke_bp_batch+0x1cf/0x600 [ 123.588013][ C0] ? text_poke_loc_init+0x560/0x560 [ 123.593210][ C0] ? __kasan_check_write+0x14/0x20 [ 123.598317][ C0] ? mutex_lock+0x93/0x1b0 [ 123.602734][ C0] ? __cfi_mutex_lock+0x10/0x10 [ 123.607599][ C0] ? text_poke_queue+0xde/0x1a0 [ 123.612450][ C0] text_poke_finish+0x1a/0x30 [ 123.617126][ C0] arch_jump_label_transform_apply+0x15/0x30 [ 123.623108][ C0] __jump_label_update+0x38f/0x3b0 [ 123.628219][ C0] jump_label_update+0x39b/0x450 [ 123.633150][ C0] static_key_enable_cpuslocked+0x126/0x240 [ 123.639041][ C0] static_key_enable+0x1a/0x30 [ 123.643799][ C0] toggle_allocation_gate+0xba/0x440 [ 123.649078][ C0] ? __cfi_toggle_allocation_gate+0x10/0x10 [ 123.654963][ C0] ? _raw_spin_unlock+0x4c/0x70 [ 123.659810][ C0] ? finish_task_switch+0x16b/0x7c0 [ 123.665008][ C0] ? switch_mm_irqs_off+0x32d/0x960 [ 123.670202][ C0] ? __schedule+0xbea/0x14b0 [ 123.674802][ C0] process_one_work+0x717/0xc30 [ 123.679671][ C0] worker_thread+0xa4d/0x11d0 [ 123.684347][ C0] kthread+0x281/0x320 [ 123.688410][ C0] ? __cfi_worker_thread+0x10/0x10 [ 123.693514][ C0] ? __cfi_kthread+0x10/0x10 [ 123.698101][ C0] ret_from_fork+0x1f/0x30 [ 123.702517][ C0] [ 123.705525][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 [ 123.705572][ C0] FAULT_INJECTION: forcing a failure. [ 123.705572][ C0] name failslab, interval 1, probability 100, space 0, times -1 [ 123.712547][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 123.712559][ C1] Call Trace: [ 123.712565][ C1] [ 123.712572][ C1] __dump_stack+0x21/0x24 [ 123.745808][ C1] dump_stack_lvl+0x110/0x170 [ 123.750482][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 123.755502][ C1] ? inet_gro_receive+0xcc5/0x1060 [ 123.760611][ C1] ? __alloc_pages+0x1fa/0x610 [ 123.765397][ C1] dump_stack+0x15/0x24 [ 123.769549][ C1] should_fail_ex+0x3bf/0x510 [ 123.774219][ C1] ? build_skb+0x2a/0x220 [ 123.778547][ C1] __should_failslab+0xac/0xf0 [ 123.783312][ C1] should_failslab+0x9/0x20 [ 123.787813][ C1] kmem_cache_alloc+0x3b/0x320 [ 123.792577][ C1] build_skb+0x2a/0x220 [ 123.796731][ C1] page_to_skb+0x12d/0xb50 [ 123.801147][ C1] receive_buf+0x469/0x4890 [ 123.805650][ C1] ? dump_stack_lvl+0x144/0x170 [ 123.810500][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 123.816061][ C1] ? virtnet_poll_tx+0x550/0x550 [ 123.821019][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 123.826856][ C1] ? __tasklet_schedule+0x20/0x20 [ 123.831881][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 123.837339][ C1] ? detach_buf_split+0x890/0xa90 [ 123.842366][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 123.847304][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 123.852759][ C1] virtnet_poll+0x5c9/0x1150 [ 123.857381][ C1] ? __kasan_check_write+0x14/0x20 [ 123.862493][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 123.867517][ C1] ? virtqueue_poll+0x173/0x220 [ 123.872363][ C1] ? virtnet_poll_tx+0x317/0x550 [ 123.877300][ C1] __napi_poll+0xcd/0x5d0 [ 123.881637][ C1] net_rx_action+0x4a3/0xa90 [ 123.886230][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 123.891335][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 123.896570][ C1] handle_softirqs+0x1d7/0x600 [ 123.901335][ C1] __irq_exit_rcu+0x52/0xf0 [ 123.905841][ C1] irq_exit_rcu+0x9/0x10 [ 123.910088][ C1] common_interrupt+0xbe/0xe0 [ 123.914767][ C1] [ 123.917693][ C1] [ 123.920612][ C1] asm_common_interrupt+0x27/0x40 [ 123.925685][ C1] RIP: 0010:default_idle+0xf/0x20 [ 123.930708][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 123.950309][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 123.956388][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 123.964373][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 123.972339][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 123.980306][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 123.988271][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 123.996257][ C1] ? __cfi_default_idle+0x10/0x10 [ 124.001286][ C1] arch_cpu_idle+0x1c/0x20 [ 124.005705][ C1] default_idle_call+0x71/0x1d0 [ 124.010557][ C1] do_idle+0x1f1/0x640 [ 124.014624][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 124.020516][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 124.025707][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 124.031512][ C1] ? complete+0x167/0x1c0 [ 124.035849][ C1] cpu_startup_entry+0x43/0x60 [ 124.040618][ C1] start_secondary+0x119/0x120 [ 124.045384][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 124.051276][ C1] [ 124.054289][ C0] CPU: 0 PID: 316 Comm: kworker/u4:3 Not tainted syzkaller #0 [ 124.054314][ C1] FAULT_INJECTION: forcing a failure. [ 124.054314][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 124.061751][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 124.061765][ C0] Workqueue: events_unbound toggle_allocation_gate [ 124.091257][ C0] Call Trace: [ 124.094535][ C0] [ 124.097496][ C0] __dump_stack+0x21/0x24 [ 124.101844][ C0] dump_stack_lvl+0x110/0x170 [ 124.106529][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 124.111553][ C0] ? calc_wheel_index+0x230/0x8d0 [ 124.116576][ C0] ? timer_update_keys+0xb0/0xb0 [ 124.121517][ C0] dump_stack+0x15/0x24 [ 124.125761][ C0] should_fail_ex+0x3bf/0x510 [ 124.130431][ C0] __should_failslab+0xac/0xf0 [ 124.135214][ C0] should_failslab+0x9/0x20 [ 124.139710][ C0] kmem_cache_alloc_node+0x42/0x330 [ 124.144906][ C0] ? __alloc_skb+0xe8/0x4a0 [ 124.149404][ C0] __alloc_skb+0xe8/0x4a0 [ 124.153725][ C0] ndisc_send_rs+0x31d/0x870 [ 124.158309][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 124.163245][ C0] addrconf_rs_timer+0x35a/0x600 [ 124.168189][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 124.173649][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 124.179103][ C0] call_timer_fn+0x46/0x2a0 [ 124.183611][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 124.189065][ C0] __run_timers+0x646/0x9b0 [ 124.193570][ C0] ? calc_index+0x200/0x200 [ 124.198072][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 124.203289][ C0] run_timer_softirq+0x6a/0xf0 [ 124.208071][ C0] handle_softirqs+0x1d7/0x600 [ 124.212835][ C0] __irq_exit_rcu+0x52/0xf0 [ 124.217332][ C0] irq_exit_rcu+0x9/0x10 [ 124.221565][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 124.227208][ C0] [ 124.230170][ C0] [ 124.233114][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 124.239115][ C0] RIP: 0010:smp_call_function_many_cond+0x85a/0x940 [ 124.245714][ C0] Code: e6 01 31 ff e8 77 72 09 00 83 e3 01 48 bb 00 00 00 00 00 fc ff df 75 0a e8 43 6e 09 00 e9 38 ff ff ff f3 90 41 0f b6 44 1d 00 <84> c0 75 14 41 f7 07 01 00 00 00 0f 84 1a ff ff ff e8 20 6e 09 00 [ 124.265320][ C0] RSP: 0018:ffffc9000dc9f840 EFLAGS: 00000293 [ 124.271387][ C0] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88810fc9a880 [ 124.279351][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 124.287313][ C0] RBP: ffffc9000dc9f978 R08: ffff8881f6e390d7 R09: 1ffff1103edc721a [ 124.295280][ C0] R10: 0000000000000000 R11: ffffffff8134b650 R12: 1ffff1103edc7218 [ 124.303517][ C0] R13: 1ffff1103ede78a5 R14: 0000000000000001 R15: ffff8881f6f3c528 [ 124.311523][ C0] ? __cfi_x2apic_send_IPI+0x10/0x10 [ 124.316829][ C0] ? __cfi_do_sync_core+0x10/0x10 [ 124.321889][ C0] ? smp_call_function_many+0x40/0x40 [ 124.327273][ C0] ? kmem_cache_alloc_bulk+0xf8/0x3c0 [ 124.332660][ C0] ? text_poke+0x30/0x30 [ 124.336989][ C0] ? text_poke_loc_init+0x105/0x560 [ 124.342186][ C0] ? __cfi_do_sync_core+0x10/0x10 [ 124.347205][ C0] on_each_cpu_cond_mask+0x43/0x80 [ 124.352312][ C0] text_poke_bp_batch+0x1cf/0x600 [ 124.357510][ C0] ? text_poke_loc_init+0x560/0x560 [ 124.362727][ C0] ? __kasan_check_write+0x14/0x20 [ 124.367845][ C0] ? mutex_lock+0x93/0x1b0 [ 124.372281][ C0] ? __cfi_mutex_lock+0x10/0x10 [ 124.377132][ C0] ? text_poke_queue+0xde/0x1a0 [ 124.381992][ C0] text_poke_finish+0x1a/0x30 [ 124.386674][ C0] arch_jump_label_transform_apply+0x15/0x30 [ 124.392665][ C0] __jump_label_update+0x38f/0x3b0 [ 124.397789][ C0] jump_label_update+0x39b/0x450 [ 124.402791][ C0] static_key_enable_cpuslocked+0x126/0x240 [ 124.408711][ C0] static_key_enable+0x1a/0x30 [ 124.413518][ C0] toggle_allocation_gate+0xba/0x440 [ 124.418804][ C0] ? __cfi_toggle_allocation_gate+0x10/0x10 [ 124.424692][ C0] ? _raw_spin_unlock+0x4c/0x70 [ 124.429540][ C0] ? finish_task_switch+0x16b/0x7c0 [ 124.434735][ C0] ? switch_mm_irqs_off+0x32d/0x960 [ 124.439928][ C0] ? __schedule+0xbea/0x14b0 [ 124.444514][ C0] process_one_work+0x717/0xc30 [ 124.449489][ C0] worker_thread+0xa4d/0x11d0 [ 124.454165][ C0] kthread+0x281/0x320 [ 124.458229][ C0] ? __cfi_worker_thread+0x10/0x10 [ 124.463338][ C0] ? __cfi_kthread+0x10/0x10 [ 124.467920][ C0] ret_from_fork+0x1f/0x30 [ 124.472336][ C0] [ 124.475352][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 [ 124.475389][ C0] FAULT_INJECTION: forcing a failure. [ 124.475389][ C0] name failslab, interval 1, probability 100, space 0, times -1 [ 124.482376][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 124.482389][ C1] Call Trace: [ 124.482395][ C1] [ 124.482402][ C1] __dump_stack+0x21/0x24 [ 124.515662][ C1] dump_stack_lvl+0x110/0x170 [ 124.520985][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 124.526040][ C1] ? inet_gro_receive+0xcc5/0x1060 [ 124.531153][ C1] ? __alloc_pages+0x1fa/0x610 [ 124.535945][ C1] dump_stack+0x15/0x24 [ 124.540099][ C1] should_fail_ex+0x3bf/0x510 [ 124.544770][ C1] ? build_skb+0x2a/0x220 [ 124.549097][ C1] __should_failslab+0xac/0xf0 [ 124.553862][ C1] should_failslab+0x9/0x20 [ 124.558360][ C1] kmem_cache_alloc+0x3b/0x320 [ 124.563123][ C1] build_skb+0x2a/0x220 [ 124.567278][ C1] page_to_skb+0x12d/0xb50 [ 124.571701][ C1] receive_buf+0x469/0x4890 [ 124.576206][ C1] ? dump_stack_lvl+0x144/0x170 [ 124.581060][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 124.586632][ C1] ? virtnet_poll_tx+0x550/0x550 [ 124.591578][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 124.597407][ C1] ? __tasklet_schedule+0x20/0x20 [ 124.602429][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 124.607887][ C1] ? detach_buf_split+0x890/0xa90 [ 124.612914][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 124.617847][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 124.623326][ C1] virtnet_poll+0x5c9/0x1150 [ 124.627922][ C1] ? __kasan_check_write+0x14/0x20 [ 124.633036][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 124.638061][ C1] ? virtqueue_poll+0x173/0x220 [ 124.642914][ C1] ? virtnet_poll_tx+0x317/0x550 [ 124.647857][ C1] __napi_poll+0xcd/0x5d0 [ 124.652197][ C1] net_rx_action+0x4a3/0xa90 [ 124.656808][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 124.661916][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 124.667122][ C1] handle_softirqs+0x1d7/0x600 [ 124.671888][ C1] __irq_exit_rcu+0x52/0xf0 [ 124.676502][ C1] irq_exit_rcu+0x9/0x10 [ 124.680745][ C1] common_interrupt+0xbe/0xe0 [ 124.685431][ C1] [ 124.688357][ C1] [ 124.691279][ C1] asm_common_interrupt+0x27/0x40 [ 124.696308][ C1] RIP: 0010:default_idle+0xf/0x20 [ 124.701335][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 124.721027][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 124.727114][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 124.735084][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 124.743057][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 124.751022][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 124.758990][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 124.766966][ C1] ? __cfi_default_idle+0x10/0x10 [ 124.772008][ C1] arch_cpu_idle+0x1c/0x20 [ 124.776420][ C1] default_idle_call+0x71/0x1d0 [ 124.781275][ C1] do_idle+0x1f1/0x640 [ 124.785372][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 124.791181][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 124.796378][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 124.802183][ C1] ? complete+0x167/0x1c0 [ 124.806519][ C1] cpu_startup_entry+0x43/0x60 [ 124.811284][ C1] start_secondary+0x119/0x120 [ 124.816051][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 124.821946][ C1] [ 124.824981][ C0] CPU: 0 PID: 316 Comm: kworker/u4:3 Not tainted syzkaller #0 [ 124.825026][ C1] FAULT_INJECTION: forcing a failure. [ 124.825026][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 124.832468][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 124.832482][ C0] Workqueue: events_unbound toggle_allocation_gate [ 124.861853][ C0] Call Trace: [ 124.865128][ C0] [ 124.867968][ C0] __dump_stack+0x21/0x24 [ 124.872297][ C0] dump_stack_lvl+0x110/0x170 [ 124.877071][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 124.882111][ C0] ? calc_wheel_index+0x1b5/0x8d0 [ 124.887136][ C0] ? timer_update_keys+0xb0/0xb0 [ 124.892071][ C0] dump_stack+0x15/0x24 [ 124.896223][ C0] should_fail_ex+0x3bf/0x510 [ 124.900894][ C0] __should_failslab+0xac/0xf0 [ 124.905659][ C0] should_failslab+0x9/0x20 [ 124.910156][ C0] kmem_cache_alloc_node+0x42/0x330 [ 124.915356][ C0] ? __alloc_skb+0xe8/0x4a0 [ 124.919852][ C0] __alloc_skb+0xe8/0x4a0 [ 124.924183][ C0] ndisc_send_rs+0x31d/0x870 [ 124.928769][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 124.933707][ C0] addrconf_rs_timer+0x35a/0x600 [ 124.938645][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 124.944099][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 124.949126][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 124.954670][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 124.960137][ C0] call_timer_fn+0x46/0x2a0 [ 124.964638][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 124.970141][ C0] __run_timers+0x646/0x9b0 [ 124.974647][ C0] ? calc_index+0x200/0x200 [ 124.979151][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 124.984354][ C0] run_timer_softirq+0x6a/0xf0 [ 124.989117][ C0] handle_softirqs+0x1d7/0x600 [ 124.993882][ C0] __irq_exit_rcu+0x52/0xf0 [ 124.998403][ C0] irq_exit_rcu+0x9/0x10 [ 125.002643][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 125.008309][ C0] [ 125.011236][ C0] [ 125.014158][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 125.020146][ C0] RIP: 0010:smp_call_function_many_cond+0x85a/0x940 [ 125.026737][ C0] Code: e6 01 31 ff e8 77 72 09 00 83 e3 01 48 bb 00 00 00 00 00 fc ff df 75 0a e8 43 6e 09 00 e9 38 ff ff ff f3 90 41 0f b6 44 1d 00 <84> c0 75 14 41 f7 07 01 00 00 00 0f 84 1a ff ff ff e8 20 6e 09 00 [ 125.046355][ C0] RSP: 0018:ffffc9000dc9f840 EFLAGS: 00000293 [ 125.052420][ C0] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88810fc9a880 [ 125.060408][ C0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 125.068373][ C0] RBP: ffffc9000dc9f978 R08: ffff8881f6e390d7 R09: 1ffff1103edc721a [ 125.076340][ C0] R10: 0000000000000000 R11: ffffffff8134b650 R12: 1ffff1103edc7218 [ 125.084305][ C0] R13: 1ffff1103ede78a5 R14: 0000000000000001 R15: ffff8881f6f3c528 [ 125.092269][ C0] ? __cfi_x2apic_send_IPI+0x10/0x10 [ 125.097578][ C0] ? __cfi_do_sync_core+0x10/0x10 [ 125.102599][ C0] ? smp_call_function_many+0x40/0x40 [ 125.107967][ C0] ? kmem_cache_alloc_bulk+0xf8/0x3c0 [ 125.113337][ C0] ? text_poke+0x30/0x30 [ 125.117573][ C0] ? text_poke_loc_init+0x105/0x560 [ 125.122766][ C0] ? __cfi_do_sync_core+0x10/0x10 [ 125.127786][ C0] on_each_cpu_cond_mask+0x43/0x80 [ 125.132895][ C0] text_poke_bp_batch+0x1cf/0x600 [ 125.137917][ C0] ? text_poke_loc_init+0x560/0x560 [ 125.143111][ C0] ? __kasan_check_write+0x14/0x20 [ 125.148213][ C0] ? mutex_lock+0x93/0x1b0 [ 125.152631][ C0] ? __cfi_mutex_lock+0x10/0x10 [ 125.157484][ C0] ? text_poke_queue+0xde/0x1a0 [ 125.162329][ C0] text_poke_finish+0x1a/0x30 [ 125.167000][ C0] arch_jump_label_transform_apply+0x15/0x30 [ 125.172980][ C0] __jump_label_update+0x38f/0x3b0 [ 125.178088][ C0] jump_label_update+0x39b/0x450 [ 125.183026][ C0] static_key_enable_cpuslocked+0x126/0x240 [ 125.189001][ C0] static_key_enable+0x1a/0x30 [ 125.193761][ C0] toggle_allocation_gate+0xba/0x440 [ 125.199039][ C0] ? __cfi_toggle_allocation_gate+0x10/0x10 [ 125.204925][ C0] ? _raw_spin_unlock+0x4c/0x70 [ 125.209769][ C0] ? finish_task_switch+0x16b/0x7c0 [ 125.214963][ C0] ? switch_mm_irqs_off+0x32d/0x960 [ 125.220159][ C0] ? __schedule+0xbea/0x14b0 [ 125.224747][ C0] process_one_work+0x717/0xc30 [ 125.229590][ C0] worker_thread+0xa4d/0x11d0 [ 125.234263][ C0] kthread+0x281/0x320 [ 125.238324][ C0] ? __cfi_worker_thread+0x10/0x10 [ 125.243429][ C0] ? __cfi_kthread+0x10/0x10 [ 125.248022][ C0] ret_from_fork+0x1f/0x30 [ 125.252438][ C0] [ 125.255469][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 [ 125.256074][ T337] FAULT_INJECTION: forcing a failure. [ 125.256074][ T337] name failslab, interval 1, probability 100, space 0, times -1 [ 125.262515][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 125.262535][ C1] Call Trace: [ 125.262541][ C1] [ 125.262548][ C1] __dump_stack+0x21/0x24 [ 125.262575][ C1] dump_stack_lvl+0x110/0x170 [ 125.276317][ T336] FAULT_INJECTION: forcing a failure. [ 125.276317][ T336] name failslab, interval 1, probability 100, space 0, times -1 [ 125.286047][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 125.286075][ C1] ? inet_gro_receive+0xcc5/0x1060 [ 125.324158][ C1] ? __alloc_pages+0x1fa/0x610 [ 125.328931][ C1] dump_stack+0x15/0x24 [ 125.333090][ C1] should_fail_ex+0x3bf/0x510 [ 125.337763][ C1] ? build_skb+0x2a/0x220 [ 125.342090][ C1] __should_failslab+0xac/0xf0 [ 125.342128][ T322] FAULT_INJECTION: forcing a failure. [ 125.342128][ T322] name failslab, interval 1, probability 100, space 0, times -1 [ 125.346852][ C1] should_failslab+0x9/0x20 [ 125.359789][ T102] FAULT_INJECTION: forcing a failure. [ 125.359789][ T102] name failslab, interval 1, probability 100, space 0, times -1 [ 125.364164][ C1] kmem_cache_alloc+0x3b/0x320 [ 125.382352][ C1] build_skb+0x2a/0x220 [ 125.386528][ C1] page_to_skb+0x12d/0xb50 [ 125.390950][ C1] receive_buf+0x469/0x4890 [ 125.395456][ C1] ? dump_stack_lvl+0x144/0x170 [ 125.400305][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 125.405848][ C1] ? virtnet_poll_tx+0x550/0x550 [ 125.410784][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 125.416589][ C1] ? __tasklet_schedule+0x20/0x20 [ 125.421611][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 125.427174][ C1] ? detach_buf_split+0x890/0xa90 [ 125.432197][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 125.437136][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 125.442591][ C1] virtnet_poll+0x5c9/0x1150 [ 125.447182][ C1] ? __kasan_check_write+0x14/0x20 [ 125.452286][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 125.457310][ C1] ? virtqueue_poll+0x173/0x220 [ 125.462182][ C1] ? virtnet_poll_tx+0x317/0x550 [ 125.467121][ C1] __napi_poll+0xcd/0x5d0 [ 125.471454][ C1] net_rx_action+0x4a3/0xa90 [ 125.476037][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 125.481167][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 125.486401][ C1] handle_softirqs+0x1d7/0x600 [ 125.491165][ C1] __irq_exit_rcu+0x52/0xf0 [ 125.495678][ C1] irq_exit_rcu+0x9/0x10 [ 125.499937][ C1] common_interrupt+0xbe/0xe0 [ 125.504614][ C1] [ 125.507538][ C1] [ 125.510463][ C1] asm_common_interrupt+0x27/0x40 [ 125.515490][ C1] RIP: 0010:default_idle+0xf/0x20 [ 125.520518][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 125.540125][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 125.546188][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 125.554155][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 125.562141][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 125.570107][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 125.578071][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 125.586041][ C1] ? __cfi_default_idle+0x10/0x10 [ 125.591067][ C1] arch_cpu_idle+0x1c/0x20 [ 125.595476][ C1] default_idle_call+0x71/0x1d0 [ 125.600355][ C1] do_idle+0x1f1/0x640 [ 125.604423][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 125.610233][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 125.615432][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 125.621325][ C1] ? complete+0x167/0x1c0 [ 125.625664][ C1] cpu_startup_entry+0x43/0x60 [ 125.630422][ C1] start_secondary+0x119/0x120 [ 125.635180][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 125.641077][ C1] [ 125.644092][ T102] CPU: 0 PID: 102 Comm: udevd Not tainted syzkaller #0 [ 125.644177][ C1] FAULT_INJECTION: forcing a failure. [ 125.644177][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 125.650942][ T102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 125.650954][ T102] Call Trace: [ 125.650960][ T102] [ 125.650967][ T102] __dump_stack+0x21/0x24 [ 125.684386][ T102] dump_stack_lvl+0x110/0x170 [ 125.689060][ T102] ? __cfi_dump_stack_lvl+0x8/0x8 [ 125.694078][ T102] ? __cfi_avc_has_perm_noaudit+0x10/0x10 [ 125.699823][ T102] dump_stack+0x15/0x24 [ 125.704111][ T102] should_fail_ex+0x3bf/0x510 [ 125.708797][ T102] ? __sigqueue_alloc+0x13f/0x210 [ 125.713920][ T102] __should_failslab+0xac/0xf0 [ 125.718708][ T102] should_failslab+0x9/0x20 [ 125.723462][ T102] kmem_cache_alloc+0x3b/0x320 [ 125.728226][ T102] __sigqueue_alloc+0x13f/0x210 [ 125.733075][ T102] __send_signal_locked+0x19d/0xb70 [ 125.738269][ T102] ? __task_pid_nr_ns+0x1e2/0x280 [ 125.743289][ T102] send_signal_locked+0x416/0x580 [ 125.748314][ T102] do_send_sig_info+0xd6/0x210 [ 125.753075][ T102] group_send_sig_info+0x118/0x2e0 [ 125.758263][ T102] ? __cfi_group_send_sig_info+0x10/0x10 [ 125.763891][ T102] ? radix_tree_lookup+0x248/0x290 [ 125.769003][ T102] ? idr_find+0x41/0x60 [ 125.773157][ T102] kill_proc_info+0x50/0x90 [ 125.777686][ T102] __se_sys_kill+0x15f/0x540 [ 125.782268][ T102] ? __x64_sys_kill+0x70/0x70 [ 125.786935][ T102] ? xfd_validate_state+0x70/0x150 [ 125.792044][ T102] ? fpregs_restore_userregs+0x128/0x260 [ 125.797669][ T102] __x64_sys_kill+0x5b/0x70 [ 125.802163][ T102] x64_sys_call+0x4b/0x9a0 [ 125.806572][ T102] do_syscall_64+0x4c/0xa0 [ 125.810983][ T102] ? clear_bhb_loop+0x30/0x80 [ 125.815653][ T102] ? clear_bhb_loop+0x30/0x80 [ 125.820341][ T102] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 125.826236][ T102] RIP: 0033:0x7fb337e5f357 [ 125.830644][ T102] Code: 48 83 c4 08 c3 66 0f 1f 44 00 00 48 8b 15 99 1a 19 00 64 89 02 b8 ff ff ff ff eb e4 0f 1f 80 00 00 00 00 b8 3e 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 71 1a 19 00 f7 d8 64 89 01 48 [ 125.850248][ T102] RSP: 002b:00007ffc463876f8 EFLAGS: 00000297 ORIG_RAX: 000000000000003e [ 125.858668][ T102] RAX: ffffffffffffffda RBX: 00007ffc46387700 RCX: 00007fb337e5f357 [ 125.866669][ T102] RDX: 00005597c65a5f90 RSI: 000000000000000f RDI: 0000000000000136 [ 125.874640][ T102] RBP: 0000000000000000 R08: 0000000000000010 R09: 00005597c6596020 [ 125.882601][ T102] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000000 [ 125.890562][ T102] R13: 000055978b69a100 R14: 0000000000000000 R15: 00007ffc46387930 [ 125.898535][ T102] [ 125.901548][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 [ 125.901962][ T310] FAULT_INJECTION: forcing a failure. [ 125.901962][ T310] name failslab, interval 1, probability 100, space 0, times -1 [ 125.908571][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 125.921475][ T186] FAULT_INJECTION: forcing a failure. [ 125.921475][ T186] name failslab, interval 1, probability 100, space 0, times -1 [ 125.931428][ C1] Call Trace: [ 125.931440][ C1] [ 125.931446][ C1] __dump_stack+0x21/0x24 [ 125.954657][ C1] dump_stack_lvl+0x110/0x170 [ 125.959336][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 125.964354][ C1] ? dump_stack_lvl+0x144/0x170 [ 125.969226][ C1] dump_stack+0x15/0x24 [ 125.973375][ C1] should_fail_ex+0x3bf/0x510 [ 125.978038][ C1] __should_failslab+0xac/0xf0 [ 125.982793][ C1] should_failslab+0x9/0x20 [ 125.987306][ C1] kmem_cache_alloc_bulk+0x2d/0x3c0 [ 125.992501][ C1] ? __kasan_check_read+0x11/0x20 [ 125.997515][ C1] __napi_build_skb+0x144/0x200 [ 126.002374][ C1] __napi_alloc_skb+0x226/0x530 [ 126.007216][ C1] page_to_skb+0x2c6/0xb50 [ 126.011623][ C1] receive_buf+0x469/0x4890 [ 126.016118][ C1] ? dump_stack_lvl+0x144/0x170 [ 126.020956][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 126.026493][ C1] ? virtnet_poll_tx+0x550/0x550 [ 126.031419][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 126.037216][ C1] ? __tasklet_schedule+0x20/0x20 [ 126.042260][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 126.047711][ C1] ? detach_buf_split+0x890/0xa90 [ 126.052729][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 126.057658][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 126.063105][ C1] virtnet_poll+0x5c9/0x1150 [ 126.067686][ C1] ? __kasan_check_write+0x14/0x20 [ 126.072786][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 126.077812][ C1] ? virtqueue_poll+0x173/0x220 [ 126.082654][ C1] ? virtnet_poll_tx+0x317/0x550 [ 126.087599][ C1] __napi_poll+0xcd/0x5d0 [ 126.091950][ C1] net_rx_action+0x4a3/0xa90 [ 126.096538][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 126.101640][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 126.106838][ C1] handle_softirqs+0x1d7/0x600 [ 126.111618][ C1] __irq_exit_rcu+0x52/0xf0 [ 126.116121][ C1] irq_exit_rcu+0x9/0x10 [ 126.120352][ C1] common_interrupt+0xbe/0xe0 [ 126.125022][ C1] [ 126.127953][ C1] [ 126.130867][ C1] asm_common_interrupt+0x27/0x40 [ 126.135914][ C1] RIP: 0010:default_idle+0xf/0x20 [ 126.140930][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 126.160522][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 126.166582][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 126.174550][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 126.182599][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 126.190563][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 126.198523][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 126.206487][ C1] ? __cfi_default_idle+0x10/0x10 [ 126.211509][ C1] arch_cpu_idle+0x1c/0x20 [ 126.215930][ C1] default_idle_call+0x71/0x1d0 [ 126.220772][ C1] do_idle+0x1f1/0x640 [ 126.224855][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 126.230660][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 126.235854][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 126.241654][ C1] ? complete+0x167/0x1c0 [ 126.245999][ C1] cpu_startup_entry+0x43/0x60 [ 126.250766][ C1] start_secondary+0x119/0x120 [ 126.255628][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 126.261517][ C1] [ 126.264558][ C1] FAULT_INJECTION: forcing a failure. [ 126.264558][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 126.264568][ T337] CPU: 0 PID: 337 Comm: syz.1.10 Not tainted syzkaller #0 [ 126.264590][ T337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 126.294543][ T337] Call Trace: [ 126.297819][ T337] [ 126.300742][ T337] __dump_stack+0x21/0x24 [ 126.305067][ T337] dump_stack_lvl+0x110/0x170 [ 126.309740][ T337] ? __cfi_dump_stack_lvl+0x8/0x8 [ 126.314761][ T337] ? prep_new_page+0x1c/0x110 [ 126.319436][ T337] dump_stack+0x15/0x24 [ 126.323610][ T337] should_fail_ex+0x3bf/0x510 [ 126.328279][ T337] ? mas_alloc_nodes+0x2d8/0x850 [ 126.333213][ T337] __should_failslab+0xac/0xf0 [ 126.337977][ T337] should_failslab+0x9/0x20 [ 126.342498][ T337] kmem_cache_alloc+0x3b/0x320 [ 126.347277][ T337] mas_alloc_nodes+0x2d8/0x850 [ 126.352040][ T337] mas_preallocate+0xe3d/0x1430 [ 126.356887][ T337] ? __cfi_mas_preallocate+0x10/0x10 [ 126.362167][ T337] ? rwsem_write_trylock+0x136/0x300 [ 126.367467][ T337] vma_expand+0x437/0xad0 [ 126.371795][ T337] mmap_region+0xf04/0x2130 [ 126.376298][ T337] ? should_fail+0xb/0x10 [ 126.380619][ T337] ? __cfi_mmap_region+0x10/0x10 [ 126.385553][ T337] ? cap_mmap_addr+0x165/0x2e0 [ 126.390311][ T337] ? futex_wake+0x5b7/0x8e0 [ 126.394807][ T337] ? get_unmapped_area+0x30c/0x370 [ 126.400008][ T337] do_mmap+0x858/0xdd0 [ 126.404098][ T337] ? __cfi_do_mmap+0x10/0x10 [ 126.408712][ T337] ? do_futex+0x2bf/0x430 [ 126.413049][ T337] ? _copy_from_user+0x8f/0xc0 [ 126.417832][ T337] vm_mmap_pgoff+0x206/0x3f0 [ 126.422424][ T337] ? __cfi_vm_mmap_pgoff+0x10/0x10 [ 126.427544][ T337] ? __x64_sys_futex+0x100/0x100 [ 126.432515][ T337] ? xfd_validate_state+0x70/0x150 [ 126.437663][ T337] ksys_mmap_pgoff+0xf6/0x1d0 [ 126.442340][ T337] __x64_sys_mmap+0xfa/0x110 [ 126.446951][ T337] x64_sys_call+0x8fd/0x9a0 [ 126.451447][ T337] do_syscall_64+0x4c/0xa0 [ 126.455858][ T337] ? clear_bhb_loop+0x30/0x80 [ 126.460525][ T337] ? clear_bhb_loop+0x30/0x80 [ 126.465192][ T337] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 126.471350][ T337] RIP: 0033:0x7fcf14d9de42 [ 126.475769][ T337] Code: 4f 01 00 0f 1f 44 00 00 41 f7 c1 ff 0f 00 00 75 27 55 89 cd 53 48 89 fb 48 85 ff 74 3b 41 89 ea 48 89 df b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 6e 5b 5d c3 0f 1f 00 48 c7 c0 e8 ff ff ff 64 [ 126.495368][ T337] RSP: 002b:00007ffef6d0a088 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 126.503781][ T337] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcf14d9de42 [ 126.511748][ T337] RDX: 0000000000000000 RSI: 0000000000021000 RDI: 0000000000000000 [ 126.519708][ T337] RBP: 0000000000020022 R08: 00000000ffffffff R09: 0000000000000000 [ 126.527668][ T337] R10: 0000000000020022 R11: 0000000000000246 R12: 00007ffef6d0a1f0 [ 126.535628][ T337] R13: ffffffffffffffc0 R14: 0000000000001000 R15: 0000000000000000 [ 126.543597][ T337] [ 126.546607][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 [ 126.553633][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 126.563686][ C1] Call Trace: [ 126.566967][ C1] [ 126.569804][ C1] __dump_stack+0x21/0x24 [ 126.574169][ C1] dump_stack_lvl+0x110/0x170 [ 126.578842][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 126.583869][ C1] ? should_fail_ex+0x268/0x510 [ 126.588725][ C1] dump_stack+0x15/0x24 [ 126.592881][ C1] should_fail_ex+0x3bf/0x510 [ 126.597553][ C1] ? build_skb+0x2a/0x220 [ 126.601874][ C1] __should_failslab+0xac/0xf0 [ 126.606632][ C1] should_failslab+0x9/0x20 [ 126.611125][ C1] kmem_cache_alloc+0x3b/0x320 [ 126.615884][ C1] ? __kasan_check_write+0x14/0x20 [ 126.620990][ C1] build_skb+0x2a/0x220 [ 126.625141][ C1] page_to_skb+0x12d/0xb50 [ 126.629579][ C1] receive_buf+0x469/0x4890 [ 126.634092][ C1] ? dump_stack_lvl+0x144/0x170 [ 126.638951][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 126.644492][ C1] ? virtnet_poll_tx+0x550/0x550 [ 126.649428][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 126.655233][ C1] ? __tasklet_schedule+0x20/0x20 [ 126.660256][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 126.665718][ C1] ? detach_buf_split+0x890/0xa90 [ 126.670749][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 126.675691][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 126.681146][ C1] virtnet_poll+0x5c9/0x1150 [ 126.685768][ C1] ? __kasan_check_write+0x14/0x20 [ 126.690882][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 126.695908][ C1] ? virtqueue_poll+0x173/0x220 [ 126.700756][ C1] ? virtnet_poll_tx+0x317/0x550 [ 126.705691][ C1] __napi_poll+0xcd/0x5d0 [ 126.710022][ C1] net_rx_action+0x4a3/0xa90 [ 126.714608][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 126.719711][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 126.721011][ T287] FAULT_INJECTION: forcing a failure. [ 126.721011][ T287] name failslab, interval 1, probability 100, space 0, times -1 [ 126.724908][ C1] handle_softirqs+0x1d7/0x600 [ 126.742495][ C1] __irq_exit_rcu+0x52/0xf0 [ 126.746997][ C1] irq_exit_rcu+0x9/0x10 [ 126.751234][ C1] common_interrupt+0xbe/0xe0 [ 126.755907][ C1] [ 126.758826][ C1] [ 126.761834][ C1] asm_common_interrupt+0x27/0x40 [ 126.766872][ C1] RIP: 0010:default_idle+0xf/0x20 [ 126.771896][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 126.791522][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 126.797590][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 126.805571][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 126.813627][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 126.821594][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 126.829657][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 126.837636][ C1] ? __cfi_default_idle+0x10/0x10 [ 126.842712][ C1] arch_cpu_idle+0x1c/0x20 [ 126.847127][ C1] default_idle_call+0x71/0x1d0 [ 126.851976][ C1] do_idle+0x1f1/0x640 [ 126.856067][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 126.861872][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 126.867067][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 126.872871][ C1] ? complete+0x167/0x1c0 [ 126.877200][ C1] cpu_startup_entry+0x43/0x60 [ 126.881960][ C1] start_secondary+0x119/0x120 [ 126.886724][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 126.892615][ C1] [ 126.895624][ T310] CPU: 0 PID: 310 Comm: udevd Not tainted syzkaller #0 [ 126.895670][ C1] FAULT_INJECTION: forcing a failure. [ 126.895670][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 126.902473][ T310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 126.902486][ T310] Call Trace: [ 126.902492][ T310] [ 126.902499][ T310] __dump_stack+0x21/0x24 [ 126.936007][ T310] dump_stack_lvl+0x110/0x170 [ 126.940688][ T310] ? __cfi_dump_stack_lvl+0x8/0x8 [ 126.945715][ T310] dump_stack+0x15/0x24 [ 126.949863][ T310] should_fail_ex+0x3bf/0x510 [ 126.954536][ T310] ? mas_alloc_nodes+0x2d8/0x850 [ 126.959509][ T310] __should_failslab+0xac/0xf0 [ 126.964270][ T310] should_failslab+0x9/0x20 [ 126.968771][ T310] kmem_cache_alloc+0x3b/0x320 [ 126.973534][ T310] mas_alloc_nodes+0x2d8/0x850 [ 126.978296][ T310] mas_nomem+0xec/0x1f0 [ 126.982454][ T310] mas_store_gfp+0x231/0x3e0 [ 126.987057][ T310] ? __cfi_mas_store_gfp+0x10/0x10 [ 126.992178][ T310] ? mas_next+0x2b8/0x3a0 [ 126.996508][ T310] ? mas_find+0xdf/0x380 [ 127.000740][ T310] do_mas_align_munmap+0x8ac/0x1330 [ 127.005936][ T310] ? do_mas_munmap+0x2b0/0x2b0 [ 127.010698][ T310] ? mas_walk+0x207/0x250 [ 127.015024][ T310] do_mas_munmap+0x23d/0x2b0 [ 127.019612][ T310] __vm_munmap+0x1af/0x310 [ 127.024028][ T310] ? vm_munmap+0x30/0x30 [ 127.028292][ T310] __x64_sys_munmap+0x6b/0x80 [ 127.032966][ T310] x64_sys_call+0x8a/0x9a0 [ 127.037463][ T310] do_syscall_64+0x4c/0xa0 [ 127.041878][ T310] ? clear_bhb_loop+0x30/0x80 [ 127.046573][ T310] ? clear_bhb_loop+0x30/0x80 [ 127.051265][ T310] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 127.057164][ T310] RIP: 0033:0x7fb337f1e097 [ 127.061570][ T310] Code: 73 01 c3 48 8b 0d 61 2d 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 31 2d 0d 00 f7 d8 64 89 01 48 [ 127.081170][ T310] RSP: 002b:00007ffc46387528 EFLAGS: 00000206 ORIG_RAX: 000000000000000b [ 127.089664][ T310] RAX: ffffffffffffffda RBX: 00005597c6362f90 RCX: 00007fb337f1e097 [ 127.097628][ T310] RDX: 0000000000000000 RSI: 00000000009480e8 RDI: 00007fb337200000 [ 127.105589][ T310] RBP: 00005597c63602c0 R08: 00005597c65a0650 R09: 0000000000000006 [ 127.113552][ T310] R10: 0000000000000000 R11: 0000000000000206 R12: 000055978b699588 [ 127.121517][ T310] R13: 00007ffc463875b0 R14: 0000000000000000 R15: 0000000000000000 [ 127.129485][ T310] [ 127.132498][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 [ 127.139521][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 127.149566][ C1] Call Trace: [ 127.152835][ C1] [ 127.155669][ C1] __dump_stack+0x21/0x24 [ 127.159999][ C1] dump_stack_lvl+0x110/0x170 [ 127.164670][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 127.169688][ C1] ? irq_exit_rcu+0x9/0x10 [ 127.174122][ C1] ? arch_cpu_idle+0x1c/0x20 [ 127.178704][ C1] dump_stack+0x15/0x24 [ 127.182856][ C1] should_fail_ex+0x3bf/0x510 [ 127.187526][ C1] __should_failslab+0xac/0xf0 [ 127.192287][ C1] should_failslab+0x9/0x20 [ 127.196785][ C1] kmem_cache_alloc_bulk+0x2d/0x3c0 [ 127.201986][ C1] __napi_build_skb+0x144/0x200 [ 127.206925][ C1] __napi_alloc_skb+0x226/0x530 [ 127.211773][ C1] ? trace_raw_output_mm_lru_activate+0xe0/0xe0 [ 127.218029][ C1] page_to_skb+0x2c6/0xb50 [ 127.222447][ C1] receive_buf+0x469/0x4890 [ 127.226949][ C1] ? dump_stack_lvl+0x144/0x170 [ 127.231801][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 127.237361][ C1] ? virtnet_poll_tx+0x550/0x550 [ 127.242298][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 127.248097][ C1] ? __tasklet_schedule+0x20/0x20 [ 127.253116][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 127.258571][ C1] ? detach_buf_split+0x890/0xa90 [ 127.263593][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 127.268530][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 127.273987][ C1] virtnet_poll+0x5c9/0x1150 [ 127.278582][ C1] ? __kasan_check_write+0x14/0x20 [ 127.283701][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 127.288720][ C1] ? virtqueue_poll+0x173/0x220 [ 127.293568][ C1] ? virtnet_poll_tx+0x317/0x550 [ 127.298509][ C1] __napi_poll+0xcd/0x5d0 [ 127.302840][ C1] net_rx_action+0x4a3/0xa90 [ 127.307420][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 127.312521][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 127.317723][ C1] handle_softirqs+0x1d7/0x600 [ 127.322486][ C1] __irq_exit_rcu+0x52/0xf0 [ 127.326981][ C1] irq_exit_rcu+0x9/0x10 [ 127.331227][ C1] common_interrupt+0xbe/0xe0 [ 127.335919][ C1] [ 127.338842][ C1] [ 127.341764][ C1] asm_common_interrupt+0x27/0x40 [ 127.346793][ C1] RIP: 0010:default_idle+0xf/0x20 [ 127.351812][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 127.371418][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 127.377491][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 127.385456][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 127.393421][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 127.401388][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 127.409355][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 127.417320][ C1] ? __cfi_default_idle+0x10/0x10 [ 127.422363][ C1] arch_cpu_idle+0x1c/0x20 [ 127.426771][ C1] default_idle_call+0x71/0x1d0 [ 127.431621][ C1] do_idle+0x1f1/0x640 [ 127.435690][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 127.441496][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 127.446714][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 127.452541][ C1] ? complete+0x167/0x1c0 [ 127.456875][ C1] cpu_startup_entry+0x43/0x60 [ 127.461633][ C1] start_secondary+0x119/0x120 [ 127.466411][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 127.472305][ C1] [ 127.475316][ T336] CPU: 0 PID: 336 Comm: syz.3.8 Not tainted syzkaller #0 [ 127.475345][ C1] FAULT_INJECTION: forcing a failure. [ 127.475345][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 127.482336][ T336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 127.482347][ T336] Call Trace: [ 127.482355][ T336] [ 127.482362][ T336] __dump_stack+0x21/0x24 [ 127.515744][ T336] dump_stack_lvl+0x110/0x170 [ 127.520423][ T336] ? __cfi_dump_stack_lvl+0x8/0x8 [ 127.525441][ T336] dump_stack+0x15/0x24 [ 127.529588][ T336] should_fail_ex+0x3bf/0x510 [ 127.534256][ T336] ? taskstats_exit+0x1f0/0xb10 [ 127.539104][ T336] __should_failslab+0xac/0xf0 [ 127.543864][ T336] should_failslab+0x9/0x20 [ 127.548367][ T336] kmem_cache_alloc+0x3b/0x320 [ 127.553125][ T336] taskstats_exit+0x1f0/0xb10 [ 127.557793][ T336] ? __cfi__raw_spin_lock_irqsave+0x10/0x10 [ 127.563683][ T336] ? acct_update_integrals+0x32b/0x370 [ 127.569136][ T336] ? __cfi_taskstats_exit+0x10/0x10 [ 127.574329][ T336] ? __kasan_check_write+0x14/0x20 [ 127.579433][ T336] do_exit+0x89e/0x2850 [ 127.583589][ T336] ? _raw_spin_lock_irq+0x95/0xf0 [ 127.588609][ T336] ? __cfi_do_exit+0x10/0x10 [ 127.593201][ T336] ? __down_common+0x29d/0x500 [ 127.597969][ T336] ? __kasan_check_write+0x14/0x20 [ 127.603074][ T336] ? _raw_spin_lock_irq+0x95/0xf0 [ 127.608096][ T336] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 127.613634][ T336] do_group_exit+0x21b/0x2e0 [ 127.618224][ T336] ? __kasan_check_write+0x14/0x20 [ 127.623328][ T336] ? recalc_sigpending+0x180/0x1c0 [ 127.628458][ T336] get_signal+0x167c/0x1700 [ 127.632963][ T336] ? __cfi_get_signal+0x10/0x10 [ 127.637811][ T336] ? has_cap_mac_admin+0x370/0x370 [ 127.642916][ T336] arch_do_signal_or_restart+0xd1/0x11c0 [ 127.648540][ T336] ? selinux_file_ioctl+0x3ad/0x4c0 [ 127.653734][ T336] ? __cfi_selinux_file_ioctl+0x10/0x10 [ 127.659274][ T336] ? __cfi_arch_do_signal_or_restart+0x10/0x10 [ 127.665426][ T336] ? __fget_files+0x2d1/0x330 [ 127.670095][ T336] ? __kasan_check_write+0x14/0x20 [ 127.675199][ T336] ? fput+0x154/0x1a0 [ 127.679179][ T336] exit_to_user_mode_loop+0x7a/0xb0 [ 127.684373][ T336] exit_to_user_mode_prepare+0x87/0xd0 [ 127.689837][ T336] syscall_exit_to_user_mode+0x1a/0x30 [ 127.695334][ T336] do_syscall_64+0x58/0xa0 [ 127.699752][ T336] ? clear_bhb_loop+0x30/0x80 [ 127.704418][ T336] ? clear_bhb_loop+0x30/0x80 [ 127.709083][ T336] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 127.714972][ T336] RIP: 0033:0x7f13ee19dd6b [ 127.719383][ T336] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00 [ 127.739066][ T336] RSP: 002b:00007f13ecbf4f00 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 127.747480][ T336] RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 00007f13ee19dd6b [ 127.755469][ T336] RDX: 00007f13ecbf5fd0 RSI: 0000000080085502 RDI: 0000000000000003 [ 127.763433][ T336] RBP: 00007f13ecbf5fd0 R08: 0000000000000001 R09: 00000000ffffffff [ 127.771420][ T336] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000080085502 [ 127.779386][ T336] R13: 0000000800000000 R14: 0000000000000000 R15: 00007f13ee2538e2 [ 127.787365][ T336] [ 127.790388][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 [ 127.797411][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 127.807544][ C1] Call Trace: [ 127.810840][ C1] [ 127.813677][ C1] __dump_stack+0x21/0x24 [ 127.818002][ C1] dump_stack_lvl+0x110/0x170 [ 127.822673][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 127.827691][ C1] ? irq_exit_rcu+0x9/0x10 [ 127.832103][ C1] ? arch_cpu_idle+0x1c/0x20 [ 127.836687][ C1] dump_stack+0x15/0x24 [ 127.840842][ C1] should_fail_ex+0x3bf/0x510 [ 127.845512][ C1] __should_failslab+0xac/0xf0 [ 127.850421][ C1] should_failslab+0x9/0x20 [ 127.854931][ C1] kmem_cache_alloc_bulk+0x2d/0x3c0 [ 127.860130][ C1] __napi_build_skb+0x144/0x200 [ 127.864974][ C1] __napi_alloc_skb+0x226/0x530 [ 127.869813][ C1] ? trace_raw_output_mm_lru_activate+0xe0/0xe0 [ 127.876051][ C1] page_to_skb+0x2c6/0xb50 [ 127.880465][ C1] receive_buf+0x469/0x4890 [ 127.884970][ C1] ? dump_stack_lvl+0x144/0x170 [ 127.889818][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 127.895360][ C1] ? virtnet_poll_tx+0x550/0x550 [ 127.900295][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 127.906100][ C1] ? __tasklet_schedule+0x20/0x20 [ 127.911135][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 127.916628][ C1] ? detach_buf_split+0x890/0xa90 [ 127.921671][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 127.926609][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 127.932066][ C1] virtnet_poll+0x5c9/0x1150 [ 127.936664][ C1] ? __kasan_check_write+0x14/0x20 [ 127.941779][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 127.946826][ C1] ? virtqueue_poll+0x173/0x220 [ 127.951674][ C1] ? virtnet_poll_tx+0x317/0x550 [ 127.956615][ C1] __napi_poll+0xcd/0x5d0 [ 127.960948][ C1] net_rx_action+0x4a3/0xa90 [ 127.965532][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 127.968937][ T340] FAULT_INJECTION: forcing a failure. [ 127.968937][ T340] name failslab, interval 1, probability 100, space 0, times -1 [ 127.970641][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 127.988656][ C1] handle_softirqs+0x1d7/0x600 [ 127.993421][ C1] __irq_exit_rcu+0x52/0xf0 [ 127.997919][ C1] irq_exit_rcu+0x9/0x10 [ 128.002159][ C1] common_interrupt+0xbe/0xe0 [ 128.006839][ C1] [ 128.009762][ C1] [ 128.012681][ C1] asm_common_interrupt+0x27/0x40 [ 128.017704][ C1] RIP: 0010:default_idle+0xf/0x20 [ 128.022751][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 128.042352][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 128.048418][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 128.056386][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 128.064352][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 128.072322][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 128.080289][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 128.088264][ C1] ? __cfi_default_idle+0x10/0x10 [ 128.093333][ C1] arch_cpu_idle+0x1c/0x20 [ 128.097776][ C1] default_idle_call+0x71/0x1d0 [ 128.102628][ C1] do_idle+0x1f1/0x640 [ 128.106705][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 128.112509][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 128.117710][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 128.123528][ C1] ? complete+0x167/0x1c0 [ 128.127859][ C1] cpu_startup_entry+0x43/0x60 [ 128.132619][ C1] start_secondary+0x119/0x120 [ 128.137375][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 128.143280][ C1] [ 128.146339][ C1] FAULT_INJECTION: forcing a failure. [ 128.146339][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 128.146369][ T340] CPU: 0 PID: 340 Comm: syz.1.10 Not tainted syzkaller #0 [ 128.166266][ T340] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 128.176316][ T340] Call Trace: [ 128.179598][ T340] [ 128.182535][ T340] __dump_stack+0x21/0x24 [ 128.186870][ T340] dump_stack_lvl+0x110/0x170 [ 128.191543][ T340] ? __cfi_dump_stack_lvl+0x8/0x8 [ 128.196566][ T340] dump_stack+0x15/0x24 [ 128.200816][ T340] should_fail_ex+0x3bf/0x510 [ 128.205504][ T340] ? taskstats_exit+0x1f0/0xb10 [ 128.210354][ T340] __should_failslab+0xac/0xf0 [ 128.215118][ T340] should_failslab+0x9/0x20 [ 128.219627][ T340] kmem_cache_alloc+0x3b/0x320 [ 128.224400][ T340] taskstats_exit+0x1f0/0xb10 [ 128.229090][ T340] ? __cfi__raw_spin_lock_irqsave+0x10/0x10 [ 128.235004][ T340] ? acct_update_integrals+0x32b/0x370 [ 128.240474][ T340] ? __cfi_taskstats_exit+0x10/0x10 [ 128.245687][ T340] ? __kasan_check_write+0x14/0x20 [ 128.250804][ T340] do_exit+0x89e/0x2850 [ 128.254993][ T340] ? _raw_spin_lock_irq+0x95/0xf0 [ 128.260041][ T340] ? __cfi_do_exit+0x10/0x10 [ 128.264650][ T340] ? __down_common+0x29d/0x500 [ 128.269422][ T340] ? __kasan_check_write+0x14/0x20 [ 128.274549][ T340] ? _raw_spin_lock_irq+0x95/0xf0 [ 128.279574][ T340] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 128.285117][ T340] do_group_exit+0x21b/0x2e0 [ 128.289716][ T340] ? __kasan_check_write+0x14/0x20 [ 128.294845][ T340] ? recalc_sigpending+0x180/0x1c0 [ 128.299974][ T340] get_signal+0x167c/0x1700 [ 128.304527][ T340] ? __cfi_get_signal+0x10/0x10 [ 128.309383][ T340] ? has_cap_mac_admin+0x370/0x370 [ 128.314521][ T340] arch_do_signal_or_restart+0xd1/0x11c0 [ 128.320186][ T340] ? selinux_file_ioctl+0x3ad/0x4c0 [ 128.325410][ T340] ? __cfi_selinux_file_ioctl+0x10/0x10 [ 128.330963][ T340] ? __cfi_arch_do_signal_or_restart+0x10/0x10 [ 128.337132][ T340] ? __fget_files+0x2d1/0x330 [ 128.341814][ T340] ? __kasan_check_write+0x14/0x20 [ 128.346961][ T340] ? fput+0x154/0x1a0 [ 128.350961][ T340] exit_to_user_mode_loop+0x7a/0xb0 [ 128.356161][ T340] exit_to_user_mode_prepare+0x87/0xd0 [ 128.361631][ T340] syscall_exit_to_user_mode+0x1a/0x30 [ 128.367103][ T340] do_syscall_64+0x58/0xa0 [ 128.371518][ T340] ? clear_bhb_loop+0x30/0x80 [ 128.376188][ T340] ? clear_bhb_loop+0x30/0x80 [ 128.380857][ T340] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 128.386749][ T340] RIP: 0033:0x7fcf14d9dd6b [ 128.391156][ T340] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00 [ 128.410761][ T340] RSP: 002b:00007fcf15c97f00 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 128.419168][ T340] RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 00007fcf14d9dd6b [ 128.427134][ T340] RDX: 00007fcf15c98fd0 RSI: 0000000080085502 RDI: 0000000000000003 [ 128.435104][ T340] RBP: 00007fcf15c98fd0 R08: 0000000000000001 R09: 00000000ffffffff [ 128.443095][ T340] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000080085502 [ 128.451094][ T340] R13: 0000000800000000 R14: 0000000000000000 R15: 00007fcf14e538e2 [ 128.459068][ T340] [ 128.462082][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 [ 128.469112][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 128.479166][ C1] Call Trace: [ 128.482440][ C1] [ 128.485282][ C1] __dump_stack+0x21/0x24 [ 128.489614][ C1] dump_stack_lvl+0x110/0x170 [ 128.494290][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 128.499308][ C1] ? irq_exit_rcu+0x9/0x10 [ 128.503723][ C1] ? arch_cpu_idle+0x1c/0x20 [ 128.508309][ C1] dump_stack+0x15/0x24 [ 128.512464][ C1] should_fail_ex+0x3bf/0x510 [ 128.517135][ C1] __should_failslab+0xac/0xf0 [ 128.521901][ C1] should_failslab+0x9/0x20 [ 128.526399][ C1] kmem_cache_alloc_bulk+0x2d/0x3c0 [ 128.531599][ C1] __napi_build_skb+0x144/0x200 [ 128.536444][ C1] __napi_alloc_skb+0x226/0x530 [ 128.541290][ C1] ? trace_raw_output_mm_lru_activate+0xe0/0xe0 [ 128.547529][ C1] page_to_skb+0x2c6/0xb50 [ 128.551966][ C1] receive_buf+0x469/0x4890 [ 128.556470][ C1] ? dump_stack_lvl+0x144/0x170 [ 128.561321][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 128.561436][ T310] FAULT_INJECTION: forcing a failure. [ 128.561436][ T310] name failslab, interval 1, probability 100, space 0, times -1 [ 128.566868][ C1] ? virtnet_poll_tx+0x550/0x550 [ 128.584638][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 128.590537][ C1] ? __tasklet_schedule+0x20/0x20 [ 128.595576][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 128.601054][ C1] ? detach_buf_split+0x890/0xa90 [ 128.606085][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 128.611019][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 128.616475][ C1] virtnet_poll+0x5c9/0x1150 [ 128.621068][ C1] ? __kasan_check_write+0x14/0x20 [ 128.626180][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 128.631208][ C1] ? virtqueue_poll+0x173/0x220 [ 128.636060][ C1] ? virtnet_poll_tx+0x317/0x550 [ 128.640997][ C1] __napi_poll+0xcd/0x5d0 [ 128.645330][ C1] net_rx_action+0x4a3/0xa90 [ 128.649918][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 128.655023][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 128.660233][ C1] handle_softirqs+0x1d7/0x600 [ 128.664992][ C1] __irq_exit_rcu+0x52/0xf0 [ 128.669489][ C1] irq_exit_rcu+0x9/0x10 [ 128.673725][ C1] common_interrupt+0xbe/0xe0 [ 128.678504][ C1] [ 128.681427][ C1] [ 128.684349][ C1] asm_common_interrupt+0x27/0x40 [ 128.689379][ C1] RIP: 0010:default_idle+0xf/0x20 [ 128.694403][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 128.714105][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 128.720170][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 128.728174][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 128.736154][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 128.744119][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 128.752085][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 128.760054][ C1] ? __cfi_default_idle+0x10/0x10 [ 128.765080][ C1] arch_cpu_idle+0x1c/0x20 [ 128.769489][ C1] default_idle_call+0x71/0x1d0 [ 128.774334][ C1] do_idle+0x1f1/0x640 [ 128.778396][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 128.784231][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 128.789434][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 128.795291][ C1] ? complete+0x167/0x1c0 [ 128.799631][ C1] cpu_startup_entry+0x43/0x60 [ 128.804413][ C1] start_secondary+0x119/0x120 [ 128.809195][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 128.815087][ C1] [ 128.818100][ T310] CPU: 0 PID: 310 Comm: udevd Not tainted syzkaller #0 [ 128.818138][ C1] FAULT_INJECTION: forcing a failure. [ 128.818138][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 128.824947][ T310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 128.824958][ T310] Call Trace: [ 128.824965][ T310] [ 128.824972][ T310] __dump_stack+0x21/0x24 [ 128.858299][ T310] dump_stack_lvl+0x110/0x170 [ 128.862980][ T310] ? __cfi_dump_stack_lvl+0x8/0x8 [ 128.868002][ T310] dump_stack+0x15/0x24 [ 128.872151][ T310] should_fail_ex+0x3bf/0x510 [ 128.876818][ T310] ? __sigqueue_alloc+0x13f/0x210 [ 128.881837][ T310] __should_failslab+0xac/0xf0 [ 128.886692][ T310] should_failslab+0x9/0x20 [ 128.891227][ T310] kmem_cache_alloc+0x3b/0x320 [ 128.896007][ T310] __sigqueue_alloc+0x13f/0x210 [ 128.900864][ T310] __send_signal_locked+0x19d/0xb70 [ 128.906055][ T310] ? __task_pid_nr_ns+0x1e2/0x280 [ 128.911076][ T310] do_notify_parent+0x6b1/0x820 [ 128.915922][ T310] ? __cfi_do_notify_parent+0x10/0x10 [ 128.921293][ T310] ? __cfi__raw_write_lock_irq+0x10/0x10 [ 128.927021][ T310] ? kill_orphaned_pgrp+0x173/0x570 [ 128.932243][ T310] do_exit+0x176d/0x2850 [ 128.936499][ T310] ? __cfi_do_exit+0x10/0x10 [ 128.941099][ T310] ? __kasan_check_write+0x14/0x20 [ 128.946205][ T310] ? _raw_spin_lock_irq+0x95/0xf0 [ 128.951228][ T310] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 128.957215][ T310] ? zap_other_threads+0x2c1/0x2f0 [ 128.962382][ T310] do_group_exit+0x21b/0x2e0 [ 128.966975][ T310] __x64_sys_exit_group+0x3f/0x40 [ 128.972000][ T310] x64_sys_call+0x7b4/0x9a0 [ 128.976503][ T310] do_syscall_64+0x4c/0xa0 [ 128.980922][ T310] ? clear_bhb_loop+0x30/0x80 [ 128.985625][ T310] ? clear_bhb_loop+0x30/0x80 [ 128.990298][ T310] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 128.996194][ T310] RIP: 0033:0x7fb337ef16c5 [ 129.000627][ T310] Code: Unable to access opcode bytes at 0x7fb337ef169b. [ 129.007665][ T310] RSP: 002b:00007ffc46387568 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 129.016077][ T310] RAX: ffffffffffffffda RBX: 00005597c65bed10 RCX: 00007fb337ef16c5 [ 129.024071][ T310] RDX: 00000000000000e7 RSI: fffffffffffffe68 RDI: 0000000000000000 [ 129.032038][ T310] RBP: 00005597c63602c0 R08: 0000000000000000 R09: 0000000000000000 [ 129.040004][ T310] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 129.047973][ T310] R13: 00007ffc463875b0 R14: 0000000000000000 R15: 0000000000000000 [ 129.055947][ T310] [ 129.058968][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 [ 129.066007][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 129.076058][ C1] Call Trace: [ 129.079334][ C1] [ 129.082171][ C1] __dump_stack+0x21/0x24 [ 129.086505][ C1] dump_stack_lvl+0x110/0x170 [ 129.091213][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 129.096241][ C1] ? irq_exit_rcu+0x9/0x10 [ 129.100656][ C1] ? arch_cpu_idle+0x1c/0x20 [ 129.105245][ C1] dump_stack+0x15/0x24 [ 129.109401][ C1] should_fail_ex+0x3bf/0x510 [ 129.114073][ C1] __should_failslab+0xac/0xf0 [ 129.118836][ C1] should_failslab+0x9/0x20 [ 129.123340][ C1] kmem_cache_alloc_bulk+0x2d/0x3c0 [ 129.128551][ C1] __napi_build_skb+0x144/0x200 [ 129.133402][ C1] __napi_alloc_skb+0x226/0x530 [ 129.138270][ C1] ? trace_raw_output_mm_lru_activate+0xe0/0xe0 [ 129.144544][ C1] page_to_skb+0x2c6/0xb50 [ 129.148997][ C1] receive_buf+0x469/0x4890 [ 129.153499][ C1] ? dump_stack_lvl+0x144/0x170 [ 129.158349][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 129.163891][ C1] ? virtnet_poll_tx+0x550/0x550 [ 129.168825][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 129.174630][ C1] ? __tasklet_schedule+0x20/0x20 [ 129.179667][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 129.185122][ C1] ? detach_buf_split+0x890/0xa90 [ 129.190149][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 129.195088][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 129.200542][ C1] virtnet_poll+0x5c9/0x1150 [ 129.205135][ C1] ? __kasan_check_write+0x14/0x20 [ 129.210244][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 129.215272][ C1] ? virtqueue_poll+0x173/0x220 [ 129.220120][ C1] ? virtnet_poll_tx+0x317/0x550 [ 129.225073][ C1] __napi_poll+0xcd/0x5d0 [ 129.229430][ C1] net_rx_action+0x4a3/0xa90 [ 129.234022][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 129.239166][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 129.244368][ C1] handle_softirqs+0x1d7/0x600 [ 129.249124][ C1] __irq_exit_rcu+0x52/0xf0 [ 129.253618][ C1] irq_exit_rcu+0x9/0x10 [ 129.257849][ C1] common_interrupt+0xbe/0xe0 [ 129.262522][ C1] [ 129.265448][ C1] [ 129.268369][ C1] asm_common_interrupt+0x27/0x40 [ 129.273400][ C1] RIP: 0010:default_idle+0xf/0x20 [ 129.278436][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 129.298035][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 129.304096][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 129.312063][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 129.320027][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 129.327988][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 129.335957][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 129.343934][ C1] ? __cfi_default_idle+0x10/0x10 [ 129.348976][ C1] arch_cpu_idle+0x1c/0x20 [ 129.353399][ C1] default_idle_call+0x71/0x1d0 [ 129.358303][ C1] do_idle+0x1f1/0x640 [ 129.362369][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 129.368199][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 129.373388][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 129.379232][ C1] ? complete+0x167/0x1c0 [ 129.383563][ C1] cpu_startup_entry+0x43/0x60 [ 129.388330][ C1] start_secondary+0x119/0x120 [ 129.393085][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 129.398979][ C1] [ 129.401986][ T186] CPU: 0 PID: 186 Comm: crond Not tainted syzkaller #0 [ 129.402010][ C1] FAULT_INJECTION: forcing a failure. [ 129.402010][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 129.408855][ T186] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 129.408867][ T186] Call Trace: [ 129.408874][ T186] [ 129.408881][ T186] __dump_stack+0x21/0x24 [ 129.442206][ T186] dump_stack_lvl+0x110/0x170 [ 129.446881][ T186] ? __cfi_dump_stack_lvl+0x8/0x8 [ 129.451895][ T186] ? __schedule+0xbea/0x14b0 [ 129.456479][ T186] dump_stack+0x15/0x24 [ 129.460630][ T186] should_fail_ex+0x3bf/0x510 [ 129.465296][ T186] ? getname_flags+0xba/0x510 [ 129.470003][ T186] __should_failslab+0xac/0xf0 [ 129.474766][ T186] should_failslab+0x9/0x20 [ 129.479261][ T186] kmem_cache_alloc+0x3b/0x320 [ 129.484020][ T186] ? do_nanosleep+0x3f5/0x540 [ 129.488686][ T186] getname_flags+0xba/0x510 [ 129.493180][ T186] __se_sys_newfstatat+0x127/0x440 [ 129.498285][ T186] ? __x64_sys_newfstatat+0xb0/0xb0 [ 129.503477][ T186] ? hrtimer_nanosleep+0x263/0x340 [ 129.508595][ T186] ? __cfi_hrtimer_nanosleep+0x10/0x10 [ 129.514051][ T186] ? __cfi_hrtimer_wakeup+0x10/0x10 [ 129.519245][ T186] ? get_timespec64+0x116/0x1b0 [ 129.524088][ T186] ? fpregs_restore_userregs+0x128/0x260 [ 129.529714][ T186] __x64_sys_newfstatat+0x9b/0xb0 [ 129.534733][ T186] x64_sys_call+0x77c/0x9a0 [ 129.539234][ T186] do_syscall_64+0x4c/0xa0 [ 129.543643][ T186] ? clear_bhb_loop+0x30/0x80 [ 129.548309][ T186] ? clear_bhb_loop+0x30/0x80 [ 129.552973][ T186] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 129.558876][ T186] RIP: 0033:0x7f1c65e3eb0a [ 129.563284][ T186] Code: 48 8b 15 f1 f2 0d 00 f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 b9 f2 0d 00 f7 [ 129.582882][ T186] RSP: 002b:00007fffd19bcc48 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 [ 129.591295][ T186] RAX: ffffffffffffffda RBX: 00007f1c65fee490 RCX: 00007f1c65e3eb0a [ 129.599254][ T186] RDX: 00007fffd19bcc68 RSI: 00007f1c65fc77e8 RDI: 00000000ffffff9c [ 129.607214][ T186] RBP: 000000006a82b710 R08: 0000000000000000 R09: 0000000000000000 [ 129.615173][ T186] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 129.623132][ T186] R13: 000000000000003c R14: 0000000000000000 R15: 000000000000003c [ 129.631100][ T186] [ 129.634109][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 [ 129.641135][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 129.651178][ C1] Call Trace: [ 129.654447][ C1] [ 129.657280][ C1] __dump_stack+0x21/0x24 [ 129.661610][ C1] dump_stack_lvl+0x110/0x170 [ 129.666283][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 129.671301][ C1] ? should_fail_ex+0x268/0x510 [ 129.676144][ C1] dump_stack+0x15/0x24 [ 129.680293][ C1] should_fail_ex+0x3bf/0x510 [ 129.684984][ C1] ? build_skb+0x2a/0x220 [ 129.689304][ C1] __should_failslab+0xac/0xf0 [ 129.694063][ C1] should_failslab+0x9/0x20 [ 129.698564][ C1] kmem_cache_alloc+0x3b/0x320 [ 129.703325][ C1] ? __kasan_check_write+0x14/0x20 [ 129.708427][ C1] build_skb+0x2a/0x220 [ 129.712593][ C1] page_to_skb+0x12d/0xb50 [ 129.717007][ C1] receive_buf+0x469/0x4890 [ 129.721524][ C1] ? dump_stack_lvl+0x144/0x170 [ 129.726373][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 129.731913][ C1] ? virtnet_poll_tx+0x550/0x550 [ 129.736863][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 129.742664][ C1] ? __tasklet_schedule+0x20/0x20 [ 129.747679][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 129.753131][ C1] ? detach_buf_split+0x890/0xa90 [ 129.758152][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 129.763086][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 129.768556][ C1] virtnet_poll+0x5c9/0x1150 [ 129.773145][ C1] ? __kasan_check_write+0x14/0x20 [ 129.778251][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 129.783271][ C1] ? virtqueue_poll+0x173/0x220 [ 129.788119][ C1] ? virtnet_poll_tx+0x317/0x550 [ 129.793052][ C1] __napi_poll+0xcd/0x5d0 [ 129.797387][ C1] net_rx_action+0x4a3/0xa90 [ 129.798856][ T102] FAULT_INJECTION: forcing a failure. [ 129.798856][ T102] name failslab, interval 1, probability 100, space 0, times -1 [ 129.801965][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 129.819873][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 129.825073][ C1] handle_softirqs+0x1d7/0x600 [ 129.829828][ C1] __irq_exit_rcu+0x52/0xf0 [ 129.834320][ C1] irq_exit_rcu+0x9/0x10 [ 129.838557][ C1] common_interrupt+0xbe/0xe0 [ 129.843232][ C1] [ 129.846153][ C1] [ 129.849071][ C1] asm_common_interrupt+0x27/0x40 [ 129.854091][ C1] RIP: 0010:default_idle+0xf/0x20 [ 129.859111][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 129.878729][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 129.884789][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 129.892839][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 129.900802][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 129.908765][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 129.916730][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 129.924698][ C1] ? __cfi_default_idle+0x10/0x10 [ 129.929722][ C1] arch_cpu_idle+0x1c/0x20 [ 129.934127][ C1] default_idle_call+0x71/0x1d0 [ 129.938970][ C1] do_idle+0x1f1/0x640 [ 129.943030][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 129.948848][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 129.954470][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 129.960279][ C1] ? complete+0x167/0x1c0 [ 129.964604][ C1] cpu_startup_entry+0x43/0x60 [ 129.969361][ C1] start_secondary+0x119/0x120 [ 129.974118][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 129.980011][ C1] [ 129.983027][ T102] CPU: 0 PID: 102 Comm: udevd Not tainted syzkaller #0 [ 129.983068][ C1] FAULT_INJECTION: forcing a failure. [ 129.983068][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 129.989877][ T102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 129.989889][ T102] Call Trace: [ 129.989895][ T102] [ 129.989903][ T102] __dump_stack+0x21/0x24 [ 130.023220][ T102] dump_stack_lvl+0x110/0x170 [ 130.027894][ T102] ? __cfi_dump_stack_lvl+0x8/0x8 [ 130.032910][ T102] ? __cfi_avc_has_perm_noaudit+0x10/0x10 [ 130.038621][ T102] dump_stack+0x15/0x24 [ 130.042772][ T102] should_fail_ex+0x3bf/0x510 [ 130.047443][ T102] ? __sigqueue_alloc+0x13f/0x210 [ 130.052465][ T102] __should_failslab+0xac/0xf0 [ 130.057228][ T102] should_failslab+0x9/0x20 [ 130.061733][ T102] kmem_cache_alloc+0x3b/0x320 [ 130.066496][ T102] __sigqueue_alloc+0x13f/0x210 [ 130.071349][ T102] __send_signal_locked+0x19d/0xb70 [ 130.076544][ T102] ? __task_pid_nr_ns+0x1e2/0x280 [ 130.081562][ T102] send_signal_locked+0x416/0x580 [ 130.086583][ T102] do_send_sig_info+0xd6/0x210 [ 130.091338][ T102] group_send_sig_info+0x118/0x2e0 [ 130.096445][ T102] ? __cfi_group_send_sig_info+0x10/0x10 [ 130.102069][ T102] ? radix_tree_lookup+0x248/0x290 [ 130.107175][ T102] ? idr_find+0x41/0x60 [ 130.111323][ T102] kill_proc_info+0x50/0x90 [ 130.115821][ T102] __se_sys_kill+0x15f/0x540 [ 130.120400][ T102] ? __x64_sys_kill+0x70/0x70 [ 130.125064][ T102] ? xfd_validate_state+0x70/0x150 [ 130.130171][ T102] ? fpregs_restore_userregs+0x128/0x260 [ 130.135800][ T102] __x64_sys_kill+0x5b/0x70 [ 130.140379][ T102] x64_sys_call+0x4b/0x9a0 [ 130.144783][ T102] do_syscall_64+0x4c/0xa0 [ 130.149190][ T102] ? clear_bhb_loop+0x30/0x80 [ 130.153855][ T102] ? clear_bhb_loop+0x30/0x80 [ 130.158520][ T102] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 130.164412][ T102] RIP: 0033:0x7fb337e5f357 [ 130.168818][ T102] Code: 48 83 c4 08 c3 66 0f 1f 44 00 00 48 8b 15 99 1a 19 00 64 89 02 b8 ff ff ff ff eb e4 0f 1f 80 00 00 00 00 b8 3e 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 71 1a 19 00 f7 d8 64 89 01 48 [ 130.188426][ T102] RSP: 002b:00007ffc463876f8 EFLAGS: 00000297 ORIG_RAX: 000000000000003e [ 130.196843][ T102] RAX: ffffffffffffffda RBX: 00007ffc46387700 RCX: 00007fb337e5f357 [ 130.204808][ T102] RDX: 00005597c659ddc0 RSI: 000000000000000f RDI: 0000000000000139 [ 130.212771][ T102] RBP: 0000000000000000 R08: 0000000000000010 R09: 00005597c6596020 [ 130.220736][ T102] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000000 [ 130.228698][ T102] R13: 000055978b69a100 R14: 0000000000000000 R15: 00007ffc46387930 [ 130.236669][ T102] [ 130.239683][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 [ 130.246713][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 130.256770][ C1] Call Trace: [ 130.260045][ C1] [ 130.262877][ C1] __dump_stack+0x21/0x24 [ 130.267212][ C1] dump_stack_lvl+0x110/0x170 [ 130.271879][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 130.276937][ C1] ? dump_stack_lvl+0x144/0x170 [ 130.281787][ C1] dump_stack+0x15/0x24 [ 130.285941][ C1] should_fail_ex+0x3bf/0x510 [ 130.290608][ C1] __should_failslab+0xac/0xf0 [ 130.295367][ C1] should_failslab+0x9/0x20 [ 130.299862][ C1] kmem_cache_alloc_bulk+0x2d/0x3c0 [ 130.305061][ C1] __napi_build_skb+0x144/0x200 [ 130.309911][ C1] __napi_alloc_skb+0x226/0x530 [ 130.314774][ C1] ? build_skb+0x1d9/0x220 [ 130.319184][ C1] page_to_skb+0x2c6/0xb50 [ 130.323634][ C1] receive_buf+0x469/0x4890 [ 130.328137][ C1] ? dump_stack_lvl+0x144/0x170 [ 130.332980][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 130.338521][ C1] ? virtnet_poll_tx+0x550/0x550 [ 130.343460][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 130.349280][ C1] ? __tasklet_schedule+0x20/0x20 [ 130.354298][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 130.359753][ C1] ? detach_buf_split+0x890/0xa90 [ 130.364774][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 130.369706][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 130.375171][ C1] virtnet_poll+0x5c9/0x1150 [ 130.379760][ C1] ? __kasan_check_write+0x14/0x20 [ 130.384868][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 130.389886][ C1] ? virtqueue_poll+0x173/0x220 [ 130.394735][ C1] ? virtnet_poll_tx+0x317/0x550 [ 130.399673][ C1] __napi_poll+0xcd/0x5d0 [ 130.404008][ C1] net_rx_action+0x4a3/0xa90 [ 130.408592][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 130.413722][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 130.418929][ C1] handle_softirqs+0x1d7/0x600 [ 130.423694][ C1] __irq_exit_rcu+0x52/0xf0 [ 130.428189][ C1] irq_exit_rcu+0x9/0x10 [ 130.432426][ C1] common_interrupt+0xbe/0xe0 [ 130.437102][ C1] [ 130.440029][ C1] [ 130.442948][ C1] asm_common_interrupt+0x27/0x40 [ 130.447992][ C1] RIP: 0010:default_idle+0xf/0x20 [ 130.453021][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 130.472619][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 130.478683][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 130.486654][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 130.494631][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 130.498957][ T337] ------------[ cut here ]------------ [ 130.502594][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 130.502610][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 130.508062][ T337] kernel BUG at mm/mmap.c:2854! [ 130.516022][ C1] ? __cfi_default_idle+0x10/0x10 [ 130.516053][ C1] arch_cpu_idle+0x1c/0x20 [ 130.538221][ C1] default_idle_call+0x71/0x1d0 [ 130.543074][ C1] do_idle+0x1f1/0x640 [ 130.547136][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 130.552943][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 130.558141][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 130.563947][ C1] ? complete+0x167/0x1c0 [ 130.568291][ C1] cpu_startup_entry+0x43/0x60 [ 130.573050][ C1] start_secondary+0x119/0x120 [ 130.577807][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 130.583698][ C1] [ 130.586715][ T287] CPU: 0 PID: 287 Comm: syz-executor Not tainted syzkaller #0 [ 130.586745][ C1] FAULT_INJECTION: forcing a failure. [ 130.586745][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 130.594171][ T287] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 130.594184][ T287] Call Trace: [ 130.594191][ T287] [ 130.594197][ T287] __dump_stack+0x21/0x24 [ 130.627559][ T287] dump_stack_lvl+0x110/0x170 [ 130.632244][ T287] ? __cfi_dump_stack_lvl+0x8/0x8 [ 130.637288][ T287] ? do_nanosleep+0x3f5/0x540 [ 130.641963][ T287] dump_stack+0x15/0x24 [ 130.646113][ T287] should_fail_ex+0x3bf/0x510 [ 130.650797][ T287] ? getname_flags+0xba/0x510 [ 130.655471][ T287] __should_failslab+0xac/0xf0 [ 130.660234][ T287] should_failslab+0x9/0x20 [ 130.664727][ T287] kmem_cache_alloc+0x3b/0x320 [ 130.669493][ T287] getname_flags+0xba/0x510 [ 130.674001][ T287] getname+0x19/0x20 [ 130.677892][ T287] do_sys_openat2+0xeb/0x820 [ 130.682478][ T287] ? __cfi_get_timespec64+0x10/0x10 [ 130.687678][ T287] ? do_sys_open+0xe0/0xe0 [ 130.692089][ T287] ? __se_sys_clock_nanosleep+0x31c/0x3b0 [ 130.697806][ T287] __x64_sys_openat+0x136/0x160 [ 130.702652][ T287] x64_sys_call+0x783/0x9a0 [ 130.707150][ T287] do_syscall_64+0x4c/0xa0 [ 130.711582][ T287] ? clear_bhb_loop+0x30/0x80 [ 130.716246][ T287] ? clear_bhb_loop+0x30/0x80 [ 130.720910][ T287] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 130.726796][ T287] RIP: 0033:0x7f13ee19d3fc [ 130.731201][ T287] Code: 4c 89 54 24 18 41 89 f2 41 83 e2 40 75 40 89 f0 f7 d0 a9 00 00 41 00 74 35 89 f2 b8 01 01 00 00 48 89 fe bf 9c ff ff ff 0f 05 <48> 3d 00 f0 ff ff 77 44 48 8b 54 24 18 64 48 2b 14 25 28 00 00 00 [ 130.750885][ T287] RSP: 002b:00007ffcce77d500 EFLAGS: 00000206 ORIG_RAX: 0000000000000101 [ 130.759295][ T287] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f13ee19d3fc [ 130.767261][ T287] RDX: 0000000000090800 RSI: 00007f13ee234966 RDI: 00000000ffffff9c [ 130.775223][ T287] RBP: 00007ffcce77d5ac R08: 0000000000000000 R09: 0000000000000000 [ 130.783276][ T287] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000002 [ 130.791241][ T287] R13: 0000000000000000 R14: 0000000000007f0d R15: 00007ffcce77d600 [ 130.799209][ T287] [ 130.802219][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 [ 130.802559][ T337] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 130.809245][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 130.815296][ T337] CPU: 0 PID: 337 Comm: syz.1.10 Not tainted syzkaller #0 [ 130.825332][ C1] Call Trace: [ 130.832414][ T337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 130.835678][ C1] [ 130.845708][ T337] RIP: 0010:mmap_region+0x1fe8/0x2130 [ 130.848540][ C1] __dump_stack+0x21/0x24 [ 130.853917][ T337] Code: 50 80 e1 07 80 c1 03 38 c1 0f 8c e1 f9 ff ff 48 8b 7c 24 50 e8 69 46 09 00 e9 d2 f9 ff ff e8 ef ba c3 ff 0f 0b e8 e8 ba c3 ff <0f> 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 66 e7 ff ff 48 89 df e8 [ 130.858226][ C1] dump_stack_lvl+0x110/0x170 [ 130.877825][ T337] RSP: 0018:ffffc9000dccfa40 EFLAGS: 00010293 [ 130.882490][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 130.888543][ T337] RAX: ffffffff81adab58 RBX: 00007fcf15c7a000 RCX: ffff8881128c9440 [ 130.893548][ C1] ? dump_stack_lvl+0x144/0x170 [ 130.901497][ T337] RDX: 0000000000000000 RSI: 00007fcf15c79fff RDI: 00007fcf15c7a000 [ 130.906323][ C1] dump_stack+0x15/0x24 [ 130.914294][ T337] RBP: ffffc9000dccfc30 R08: ffff8881128c9440 R09: 0000000000000003 [ 130.918425][ C1] should_fail_ex+0x3bf/0x510 [ 130.926459][ T337] R10: 0000000000000003 R11: 0000000000000000 R12: 00007fcf15c79fff [ 130.931116][ C1] __should_failslab+0xac/0xf0 [ 130.939068][ T337] R13: 00007fcf15c7a000 R14: dffffc0000000000 R15: 00007fcf15c59000 [ 130.943813][ C1] should_failslab+0x9/0x20 [ 130.951764][ T337] FS: 00005555865c7500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 130.956245][ C1] kmem_cache_alloc_bulk+0x2d/0x3c0 [ 130.965172][ T337] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 130.970347][ C1] __napi_build_skb+0x144/0x200 [ 130.976928][ T337] CR2: 00007fb33861ee80 CR3: 0000000133b91000 CR4: 00000000003506b0 [ 130.981763][ C1] __napi_alloc_skb+0x226/0x530 [ 130.989718][ T337] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 130.994544][ C1] ? build_skb+0x1d9/0x220 [ 131.002513][ T337] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 131.006911][ C1] page_to_skb+0x2c6/0xb50 [ 131.014861][ T337] Call Trace: [ 131.014870][ T337] [ 131.019259][ C1] receive_buf+0x469/0x4890 [ 131.022523][ T337] ? should_fail+0xb/0x10 [ 131.025442][ C1] ? dump_stack_lvl+0x144/0x170 [ 131.029926][ T337] ? __cfi_mmap_region+0x10/0x10 [ 131.034234][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 131.039058][ T337] ? cap_mmap_addr+0x165/0x2e0 [ 131.043973][ C1] ? virtnet_poll_tx+0x550/0x550 [ 131.049498][ T337] ? futex_wake+0x5b7/0x8e0 [ 131.054245][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 131.059158][ T337] ? get_unmapped_area+0x30c/0x370 [ 131.063635][ C1] ? __tasklet_schedule+0x20/0x20 [ 131.069424][ T337] do_mmap+0x858/0xdd0 [ 131.074605][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 131.079624][ T337] ? __cfi_do_mmap+0x10/0x10 [ 131.083677][ C1] ? detach_buf_split+0x890/0xa90 [ 131.089111][ T337] ? do_futex+0x2bf/0x430 [ 131.093679][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 131.098679][ T337] ? _copy_from_user+0x8f/0xc0 [ 131.102986][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 131.107900][ T337] vm_mmap_pgoff+0x206/0x3f0 [ 131.112640][ C1] virtnet_poll+0x5c9/0x1150 [ 131.118076][ T337] ? __cfi_vm_mmap_pgoff+0x10/0x10 [ 131.122640][ C1] ? __kasan_check_write+0x14/0x20 [ 131.127204][ T337] ? __x64_sys_futex+0x100/0x100 [ 131.132289][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 131.137375][ T337] ? xfd_validate_state+0x70/0x150 [ 131.142640][ C1] ? virtqueue_poll+0x173/0x220 [ 131.147642][ T337] ksys_mmap_pgoff+0xf6/0x1d0 [ 131.152730][ C1] ? virtnet_poll_tx+0x317/0x550 [ 131.157559][ T337] __x64_sys_mmap+0xfa/0x110 [ 131.162211][ C1] __napi_poll+0xcd/0x5d0 [ 131.167129][ T337] x64_sys_call+0x8fd/0x9a0 [ 131.171691][ C1] net_rx_action+0x4a3/0xa90 [ 131.175998][ T337] do_syscall_64+0x4c/0xa0 [ 131.180479][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 131.185042][ T337] ? clear_bhb_loop+0x30/0x80 [ 131.189433][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 131.194518][ T337] ? clear_bhb_loop+0x30/0x80 [ 131.199182][ C1] handle_softirqs+0x1d7/0x600 [ 131.204352][ T337] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 131.209017][ C1] __irq_exit_rcu+0x52/0xf0 [ 131.213770][ T337] RIP: 0033:0x7fcf14d9de42 [ 131.219661][ C1] irq_exit_rcu+0x9/0x10 [ 131.224142][ T337] Code: 4f 01 00 0f 1f 44 00 00 41 f7 c1 ff 0f 00 00 75 27 55 89 cd 53 48 89 fb 48 85 ff 74 3b 41 89 ea 48 89 df b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 6e 5b 5d c3 0f 1f 00 48 c7 c0 e8 ff ff ff 64 [ 131.228532][ C1] common_interrupt+0xbe/0xe0 [ 131.232751][ T337] RSP: 002b:00007ffef6d0a088 EFLAGS: 00000246 [ 131.252459][ C1] [ 131.257128][ T337] ORIG_RAX: 0000000000000009 [ 131.263184][ C1] [ 131.266100][ T337] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcf14d9de42 [ 131.270759][ C1] asm_common_interrupt+0x27/0x40 [ 131.273671][ T337] RDX: 0000000000000000 RSI: 0000000000021000 RDI: 0000000000000000 [ 131.281623][ C1] RIP: 0010:default_idle+0xf/0x20 [ 131.286630][ T337] RBP: 0000000000020022 R08: 00000000ffffffff R09: 0000000000000000 [ 131.294586][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 131.299679][ T337] R10: 0000000000020022 R11: 0000000000000246 R12: 00007ffef6d0a1f0 [ 131.307657][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 131.327244][ T337] R13: ffffffffffffffc0 R14: 0000000000001000 R15: 0000000000000000 [ 131.335212][ C1] [ 131.335222][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 131.341272][ T337] [ 131.349224][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 131.351547][ T337] Modules linked in: [ 131.359507][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 131.362514][ T337] [ 131.384657][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 131.392628][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 131.400604][ C1] ? __cfi_default_idle+0x10/0x10 [ 131.405647][ C1] arch_cpu_idle+0x1c/0x20 [ 131.410057][ C1] default_idle_call+0x71/0x1d0 [ 131.414909][ C1] do_idle+0x1f1/0x640 [ 131.418975][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 131.424780][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 131.429980][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 131.435787][ C1] ? complete+0x167/0x1c0 [ 131.440170][ C1] cpu_startup_entry+0x43/0x60 [ 131.444930][ C1] start_secondary+0x119/0x120 [ 131.448831][ T186] FAULT_INJECTION: forcing a failure. [ 131.448831][ T186] name failslab, interval 1, probability 100, space 0, times -1 [ 131.449688][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 131.468389][ C1] [ 131.471410][ T322] CPU: 0 PID: 322 Comm: syz.4.5 Tainted: G D syzkaller #0 [ 131.471456][ C1] FAULT_INJECTION: forcing a failure. [ 131.471456][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 131.479905][ T322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 131.479918][ T322] Call Trace: [ 131.479924][ T322] [ 131.479931][ T322] __dump_stack+0x21/0x24 [ 131.513274][ T322] dump_stack_lvl+0x110/0x170 [ 131.517957][ T322] ? __cfi_dump_stack_lvl+0x8/0x8 [ 131.522976][ T322] dump_stack+0x15/0x24 [ 131.527129][ T322] should_fail_ex+0x3bf/0x510 [ 131.531802][ T322] ? mas_alloc_nodes+0x2d8/0x850 [ 131.536732][ T322] __should_failslab+0xac/0xf0 [ 131.541494][ T322] should_failslab+0x9/0x20 [ 131.545992][ T322] kmem_cache_alloc+0x3b/0x320 [ 131.550752][ T322] mas_alloc_nodes+0x2d8/0x850 [ 131.555509][ T322] mas_preallocate+0xe3d/0x1430 [ 131.560353][ T322] ? __cfi_mas_preallocate+0x10/0x10 [ 131.565635][ T322] ? rwsem_write_trylock+0x136/0x300 [ 131.570919][ T322] vma_expand+0x437/0xad0 [ 131.575243][ T322] mmap_region+0xf04/0x2130 [ 131.579744][ T322] ? should_fail+0xb/0x10 [ 131.584069][ T322] ? __cfi_mmap_region+0x10/0x10 [ 131.589002][ T322] ? cap_mmap_addr+0x165/0x2e0 [ 131.593758][ T322] ? futex_wake+0x5b7/0x8e0 [ 131.598258][ T322] ? get_unmapped_area+0x30c/0x370 [ 131.603372][ T322] do_mmap+0x858/0xdd0 [ 131.607438][ T322] ? __cfi_do_mmap+0x10/0x10 [ 131.612023][ T322] ? do_futex+0x2bf/0x430 [ 131.616343][ T322] ? _copy_from_user+0x8f/0xc0 [ 131.621106][ T322] vm_mmap_pgoff+0x206/0x3f0 [ 131.625690][ T322] ? __cfi_vm_mmap_pgoff+0x10/0x10 [ 131.630796][ T322] ? __x64_sys_futex+0x100/0x100 [ 131.635726][ T322] ? xfd_validate_state+0x70/0x150 [ 131.640832][ T322] ksys_mmap_pgoff+0xf6/0x1d0 [ 131.645507][ T322] __x64_sys_mmap+0xfa/0x110 [ 131.650095][ T322] x64_sys_call+0x8fd/0x9a0 [ 131.654595][ T322] do_syscall_64+0x4c/0xa0 [ 131.659006][ T322] ? clear_bhb_loop+0x30/0x80 [ 131.663672][ T322] ? clear_bhb_loop+0x30/0x80 [ 131.668340][ T322] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 131.674230][ T322] RIP: 0033:0x7f7492d9de42 [ 131.678642][ T322] Code: 4f 01 00 0f 1f 44 00 00 41 f7 c1 ff 0f 00 00 75 27 55 89 cd 53 48 89 fb 48 85 ff 74 3b 41 89 ea 48 89 df b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 6e 5b 5d c3 0f 1f 00 48 c7 c0 e8 ff ff ff 64 [ 131.698239][ T322] RSP: 002b:00007ffdbbed5aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 131.706803][ T322] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7492d9de42 [ 131.714768][ T322] RDX: 0000000000000000 RSI: 0000000000021000 RDI: 0000000000000000 [ 131.722907][ T322] RBP: 0000000000020022 R08: 00000000ffffffff R09: 0000000000000000 [ 131.730869][ T322] R10: 0000000000020022 R11: 0000000000000246 R12: 00007ffdbbed5c10 [ 131.738846][ T322] R13: ffffffffffffffc0 R14: 0000000000001000 R15: 0000000000000000 [ 131.746813][ T322] [ 131.749823][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G D syzkaller #0 [ 131.758328][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 131.768380][ C1] Call Trace: [ 131.771651][ C1] [ 131.774502][ C1] __dump_stack+0x21/0x24 [ 131.778839][ C1] dump_stack_lvl+0x110/0x170 [ 131.783513][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 131.788538][ C1] dump_stack+0x15/0x24 [ 131.792687][ C1] should_fail_ex+0x3bf/0x510 [ 131.797377][ C1] __should_failslab+0xac/0xf0 [ 131.802143][ C1] should_failslab+0x9/0x20 [ 131.806639][ C1] kmem_cache_alloc_bulk+0x2d/0x3c0 [ 131.811837][ C1] __napi_build_skb+0x144/0x200 [ 131.816683][ C1] __napi_alloc_skb+0x226/0x530 [ 131.821531][ C1] ? build_skb+0x1d9/0x220 [ 131.825939][ C1] page_to_skb+0x2c6/0xb50 [ 131.830353][ C1] receive_buf+0x469/0x4890 [ 131.834854][ C1] ? dump_stack_lvl+0x144/0x170 [ 131.839729][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 131.845299][ C1] ? virtnet_poll_tx+0x550/0x550 [ 131.850236][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 131.856039][ C1] ? __tasklet_schedule+0x20/0x20 [ 131.861072][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 131.866531][ C1] ? detach_buf_split+0x890/0xa90 [ 131.868813][ C0] FAULT_INJECTION: forcing a failure. [ 131.868813][ C0] name failslab, interval 1, probability 100, space 0, times -1 [ 131.871551][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 131.889298][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 131.894764][ C1] virtnet_poll+0x5c9/0x1150 [ 131.899373][ C1] ? __kasan_check_write+0x14/0x20 [ 131.904510][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 131.909535][ C1] ? virtqueue_poll+0x173/0x220 [ 131.914384][ C1] ? virtnet_poll_tx+0x317/0x550 [ 131.919319][ C1] __napi_poll+0xcd/0x5d0 [ 131.923666][ C1] net_rx_action+0x4a3/0xa90 [ 131.928247][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 131.933349][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 131.938577][ C1] handle_softirqs+0x1d7/0x600 [ 131.943340][ C1] __irq_exit_rcu+0x52/0xf0 [ 131.947837][ C1] irq_exit_rcu+0x9/0x10 [ 131.952072][ C1] common_interrupt+0xbe/0xe0 [ 131.956750][ C1] [ 131.959723][ C1] [ 131.962649][ C1] asm_common_interrupt+0x27/0x40 [ 131.967676][ C1] RIP: 0010:default_idle+0xf/0x20 [ 131.972698][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 131.992297][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 131.998359][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 132.006326][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 132.014294][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 132.022264][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 132.030232][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 132.038199][ C1] ? __cfi_default_idle+0x10/0x10 [ 132.043227][ C1] arch_cpu_idle+0x1c/0x20 [ 132.047643][ C1] default_idle_call+0x71/0x1d0 [ 132.053018][ C1] do_idle+0x1f1/0x640 [ 132.057105][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 132.062925][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 132.068126][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 132.073939][ C1] ? complete+0x167/0x1c0 [ 132.078268][ C1] cpu_startup_entry+0x43/0x60 [ 132.083029][ C1] start_secondary+0x119/0x120 [ 132.087792][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 132.093708][ C1] [ 132.096727][ C0] CPU: 0 PID: 186 Comm: crond Tainted: G D syzkaller #0 [ 132.096756][ C1] FAULT_INJECTION: forcing a failure. [ 132.096756][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 132.105047][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 132.105059][ C0] Call Trace: [ 132.105065][ C0] [ 132.134018][ C0] __dump_stack+0x21/0x24 [ 132.138357][ C0] dump_stack_lvl+0x110/0x170 [ 132.143035][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 132.148061][ C0] ? detach_entity_load_avg+0x790/0x790 [ 132.153603][ C0] ? plist_add+0x3e6/0x470 [ 132.158022][ C0] dump_stack+0x15/0x24 [ 132.162176][ C0] should_fail_ex+0x3bf/0x510 [ 132.166848][ C0] __should_failslab+0xac/0xf0 [ 132.171613][ C0] should_failslab+0x9/0x20 [ 132.176112][ C0] kmem_cache_alloc_node+0x42/0x330 [ 132.181311][ C0] ? __alloc_skb+0xe8/0x4a0 [ 132.185816][ C0] __alloc_skb+0xe8/0x4a0 [ 132.190140][ C0] ndisc_send_rs+0x31d/0x870 [ 132.194728][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 132.199668][ C0] addrconf_rs_timer+0x35a/0x600 [ 132.204611][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 132.210069][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 132.215528][ C0] call_timer_fn+0x46/0x2a0 [ 132.220037][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 132.225496][ C0] __run_timers+0x646/0x9b0 [ 132.230019][ C0] ? calc_index+0x200/0x200 [ 132.234538][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 132.239761][ C0] run_timer_softirq+0x6a/0xf0 [ 132.244568][ C0] handle_softirqs+0x1d7/0x600 [ 132.249349][ C0] __irq_exit_rcu+0x52/0xf0 [ 132.253845][ C0] irq_exit_rcu+0x9/0x10 [ 132.258174][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 132.263815][ C0] [ 132.266741][ C0] [ 132.269688][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 132.275673][ C0] RIP: 0010:__kasan_check_read+0x0/0x20 [ 132.281216][ C0] Code: 6b 86 eb 0a 48 c7 c7 aa 60 5f 86 48 89 de e8 af 1e 3f 03 45 31 ff eb d1 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 f1 16 b4 ef <55> 48 89 e5 89 f6 48 8b 4d 08 31 d2 e8 df e7 ff ff 5d c3 66 2e 0f [ 132.300823][ C0] RSP: 0018:ffffc90000c27ce8 EFLAGS: 00000293 [ 132.306897][ C0] RAX: ffffffff8157d44c RBX: ffffffff860afda0 RCX: ffff88811eadd100 [ 132.314864][ C0] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8711b9c0 [ 132.322829][ C0] RBP: ffffc90000c27cf0 R08: 0000000000000003 R09: 0000000000000004 [ 132.330799][ C0] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 132.338767][ C0] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff92000184fa0 [ 132.346742][ C0] ? __printk_cpu_sync_wait+0x2c/0x40 [ 132.352123][ C0] ? __printk_cpu_sync_wait+0x1c/0x40 [ 132.357540][ C0] dump_stack_lvl+0xce/0x170 [ 132.362136][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 132.367170][ C0] dump_stack+0x15/0x24 [ 132.371346][ C0] should_fail_ex+0x3bf/0x510 [ 132.376038][ C0] ? getname_flags+0xba/0x510 [ 132.380723][ C0] __should_failslab+0xac/0xf0 [ 132.385487][ C0] should_failslab+0x9/0x20 [ 132.389989][ C0] kmem_cache_alloc+0x3b/0x320 [ 132.394757][ C0] getname_flags+0xba/0x510 [ 132.399289][ C0] __x64_sys_unlink+0x3c/0x50 [ 132.403967][ C0] x64_sys_call+0x958/0x9a0 [ 132.408467][ C0] do_syscall_64+0x4c/0xa0 [ 132.412882][ C0] ? clear_bhb_loop+0x30/0x80 [ 132.417549][ C0] ? clear_bhb_loop+0x30/0x80 [ 132.422223][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 132.428120][ C0] RIP: 0033:0x7f1c65e42937 [ 132.432530][ C0] Code: 00 00 e9 a9 fd ff ff 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 5f 00 00 00 0f 05 c3 0f 1f 84 00 00 00 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 91 b4 0d 00 f7 d8 64 89 02 b8 [ 132.452130][ C0] RSP: 002b:00007fffd19bcc28 EFLAGS: 00000246 ORIG_RAX: 0000000000000057 [ 132.460541][ C0] RAX: ffffffffffffffda RBX: 00007f1c65fee490 RCX: 00007f1c65e42937 [ 132.468507][ C0] RDX: ffffffffffffff88 RSI: 00007f1c65fc77e8 RDI: 00007f1c65fc7764 [ 132.476475][ C0] RBP: 000000006a82b710 R08: 0000000000000000 R09: 0000000000000000 [ 132.484554][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 132.492521][ C0] R13: 000000000000003c R14: 0000000000000000 R15: 000000000000003c [ 132.500491][ C0] [ 132.503507][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G D syzkaller #0 [ 132.503542][ C0] FAULT_INJECTION: forcing a failure. [ 132.503542][ C0] name failslab, interval 1, probability 100, space 0, times -1 [ 132.512031][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 132.512044][ C1] Call Trace: [ 132.512051][ C1] [ 132.512057][ C1] __dump_stack+0x21/0x24 [ 132.545316][ C1] dump_stack_lvl+0x110/0x170 [ 132.549998][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 132.555028][ C1] dump_stack+0x15/0x24 [ 132.559186][ C1] should_fail_ex+0x3bf/0x510 [ 132.563883][ C1] __should_failslab+0xac/0xf0 [ 132.568651][ C1] should_failslab+0x9/0x20 [ 132.573153][ C1] kmem_cache_alloc_bulk+0x2d/0x3c0 [ 132.578356][ C1] __napi_build_skb+0x144/0x200 [ 132.583216][ C1] __napi_alloc_skb+0x226/0x530 [ 132.588150][ C1] ? build_skb+0x1d9/0x220 [ 132.592561][ C1] page_to_skb+0x2c6/0xb50 [ 132.596982][ C1] receive_buf+0x469/0x4890 [ 132.601572][ C1] ? dump_stack_lvl+0x144/0x170 [ 132.606430][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 132.611975][ C1] ? virtnet_poll_tx+0x550/0x550 [ 132.616917][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 132.622749][ C1] ? __tasklet_schedule+0x20/0x20 [ 132.627859][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 132.633348][ C1] ? detach_buf_split+0x890/0xa90 [ 132.638468][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 132.643421][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 132.648912][ C1] virtnet_poll+0x5c9/0x1150 [ 132.653545][ C1] ? __kasan_check_write+0x14/0x20 [ 132.658675][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 132.663727][ C1] ? virtqueue_poll+0x173/0x220 [ 132.668587][ C1] ? virtnet_poll_tx+0x317/0x550 [ 132.673552][ C1] __napi_poll+0xcd/0x5d0 [ 132.677896][ C1] net_rx_action+0x4a3/0xa90 [ 132.682482][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 132.687588][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 132.692790][ C1] handle_softirqs+0x1d7/0x600 [ 132.697555][ C1] __irq_exit_rcu+0x52/0xf0 [ 132.702066][ C1] irq_exit_rcu+0x9/0x10 [ 132.706313][ C1] common_interrupt+0xbe/0xe0 [ 132.710993][ C1] [ 132.713914][ C1] [ 132.716845][ C1] asm_common_interrupt+0x27/0x40 [ 132.721878][ C1] RIP: 0010:default_idle+0xf/0x20 [ 132.726915][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 132.746515][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 132.752584][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 132.760552][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 132.768518][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 132.776486][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 132.784449][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 132.792420][ C1] ? __cfi_default_idle+0x10/0x10 [ 132.797470][ C1] arch_cpu_idle+0x1c/0x20 [ 132.801879][ C1] default_idle_call+0x71/0x1d0 [ 132.806725][ C1] do_idle+0x1f1/0x640 [ 132.810800][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 132.816725][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 132.821949][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 132.827770][ C1] ? complete+0x167/0x1c0 [ 132.832108][ C1] cpu_startup_entry+0x43/0x60 [ 132.836873][ C1] start_secondary+0x119/0x120 [ 132.841634][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 132.847528][ C1] [ 132.850545][ C0] CPU: 0 PID: 186 Comm: crond Tainted: G D syzkaller #0 [ 132.850569][ C1] FAULT_INJECTION: forcing a failure. [ 132.850569][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 132.858872][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 132.858891][ C0] Call Trace: [ 132.858898][ C0] [ 132.858906][ C0] __dump_stack+0x21/0x24 [ 132.892176][ C0] dump_stack_lvl+0x110/0x170 [ 132.896860][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 132.901884][ C0] ? calc_wheel_index+0x230/0x8d0 [ 132.906908][ C0] ? timer_update_keys+0xb0/0xb0 [ 132.911849][ C0] dump_stack+0x15/0x24 [ 132.916003][ C0] should_fail_ex+0x3bf/0x510 [ 132.920675][ C0] __should_failslab+0xac/0xf0 [ 132.925438][ C0] should_failslab+0x9/0x20 [ 132.929946][ C0] kmem_cache_alloc_node+0x42/0x330 [ 132.935163][ C0] ? __alloc_skb+0xe8/0x4a0 [ 132.939691][ C0] __alloc_skb+0xe8/0x4a0 [ 132.944019][ C0] ndisc_send_rs+0x31d/0x870 [ 132.948602][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 132.953546][ C0] addrconf_rs_timer+0x35a/0x600 [ 132.958489][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 132.963963][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 132.968989][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 132.974534][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 132.979989][ C0] call_timer_fn+0x46/0x2a0 [ 132.984494][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 132.989962][ C0] __run_timers+0x646/0x9b0 [ 132.994496][ C0] ? calc_index+0x200/0x200 [ 132.998997][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 133.004200][ C0] run_timer_softirq+0x6a/0xf0 [ 133.008962][ C0] handle_softirqs+0x1d7/0x600 [ 133.013723][ C0] __irq_exit_rcu+0x52/0xf0 [ 133.018224][ C0] irq_exit_rcu+0x9/0x10 [ 133.022462][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 133.028659][ C0] [ 133.031593][ C0] [ 133.034514][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 133.040893][ C0] RIP: 0010:__kasan_check_read+0x0/0x20 [ 133.046476][ C0] Code: 6b 86 eb 0a 48 c7 c7 aa 60 5f 86 48 89 de e8 af 1e 3f 03 45 31 ff eb d1 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 f1 16 b4 ef <55> 48 89 e5 89 f6 48 8b 4d 08 31 d2 e8 df e7 ff ff 5d c3 66 2e 0f [ 133.066260][ C0] RSP: 0018:ffffc90000c27ce8 EFLAGS: 00000293 [ 133.072477][ C0] RAX: ffffffff8157d44c RBX: ffffffff860afda0 RCX: ffff88811eadd100 [ 133.080446][ C0] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8711b9c0 [ 133.088412][ C0] RBP: ffffc90000c27cf0 R08: 0000000000000003 R09: 0000000000000004 [ 133.096379][ C0] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 133.104345][ C0] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff92000184fa0 [ 133.112321][ C0] ? __printk_cpu_sync_wait+0x2c/0x40 [ 133.117700][ C0] ? __printk_cpu_sync_wait+0x1c/0x40 [ 133.123073][ C0] dump_stack_lvl+0xce/0x170 [ 133.127660][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 133.132775][ C0] dump_stack+0x15/0x24 [ 133.136931][ C0] should_fail_ex+0x3bf/0x510 [ 133.141599][ C0] ? getname_flags+0xba/0x510 [ 133.146268][ C0] __should_failslab+0xac/0xf0 [ 133.151033][ C0] should_failslab+0x9/0x20 [ 133.155544][ C0] kmem_cache_alloc+0x3b/0x320 [ 133.160343][ C0] getname_flags+0xba/0x510 [ 133.164860][ C0] __x64_sys_unlink+0x3c/0x50 [ 133.169550][ C0] x64_sys_call+0x958/0x9a0 [ 133.174051][ C0] do_syscall_64+0x4c/0xa0 [ 133.178463][ C0] ? clear_bhb_loop+0x30/0x80 [ 133.183138][ C0] ? clear_bhb_loop+0x30/0x80 [ 133.187834][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 133.193739][ C0] RIP: 0033:0x7f1c65e42937 [ 133.198152][ C0] Code: 00 00 e9 a9 fd ff ff 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 5f 00 00 00 0f 05 c3 0f 1f 84 00 00 00 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 91 b4 0d 00 f7 d8 64 89 02 b8 [ 133.217749][ C0] RSP: 002b:00007fffd19bcc28 EFLAGS: 00000246 ORIG_RAX: 0000000000000057 [ 133.226163][ C0] RAX: ffffffffffffffda RBX: 00007f1c65fee490 RCX: 00007f1c65e42937 [ 133.234134][ C0] RDX: ffffffffffffff88 RSI: 00007f1c65fc77e8 RDI: 00007f1c65fc7764 [ 133.242107][ C0] RBP: 000000006a82b710 R08: 0000000000000000 R09: 0000000000000000 [ 133.250074][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 133.258052][ C0] R13: 000000000000003c R14: 0000000000000000 R15: 000000000000003c [ 133.266035][ C0] [ 133.269048][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G D syzkaller #0 [ 133.269095][ C0] FAULT_INJECTION: forcing a failure. [ 133.269095][ C0] name failslab, interval 1, probability 100, space 0, times -1 [ 133.277546][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 133.300407][ C1] Call Trace: [ 133.303706][ C1] [ 133.306540][ C1] __dump_stack+0x21/0x24 [ 133.310870][ C1] dump_stack_lvl+0x110/0x170 [ 133.315552][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 133.320585][ C1] dump_stack+0x15/0x24 [ 133.324806][ C1] should_fail_ex+0x3bf/0x510 [ 133.329493][ C1] __should_failslab+0xac/0xf0 [ 133.334256][ C1] should_failslab+0x9/0x20 [ 133.338752][ C1] kmem_cache_alloc_bulk+0x2d/0x3c0 [ 133.343952][ C1] __napi_build_skb+0x144/0x200 [ 133.348808][ C1] __napi_alloc_skb+0x226/0x530 [ 133.353672][ C1] ? build_skb+0x1d9/0x220 [ 133.358093][ C1] page_to_skb+0x2c6/0xb50 [ 133.362514][ C1] receive_buf+0x469/0x4890 [ 133.367020][ C1] ? dump_stack_lvl+0x144/0x170 [ 133.371886][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 133.377440][ C1] ? virtnet_poll_tx+0x550/0x550 [ 133.382402][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 133.388236][ C1] ? __tasklet_schedule+0x20/0x20 [ 133.393274][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 133.398733][ C1] ? detach_buf_split+0x890/0xa90 [ 133.403765][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 133.408699][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 133.414156][ C1] virtnet_poll+0x5c9/0x1150 [ 133.418746][ C1] ? __kasan_check_write+0x14/0x20 [ 133.423853][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 133.428878][ C1] ? virtqueue_poll+0x173/0x220 [ 133.433726][ C1] ? virtnet_poll_tx+0x317/0x550 [ 133.438667][ C1] __napi_poll+0xcd/0x5d0 [ 133.443002][ C1] net_rx_action+0x4a3/0xa90 [ 133.447593][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 133.452700][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 133.457922][ C1] handle_softirqs+0x1d7/0x600 [ 133.462683][ C1] __irq_exit_rcu+0x52/0xf0 [ 133.467182][ C1] irq_exit_rcu+0x9/0x10 [ 133.471420][ C1] common_interrupt+0xbe/0xe0 [ 133.476123][ C1] [ 133.479047][ C1] [ 133.481985][ C1] asm_common_interrupt+0x27/0x40 [ 133.487015][ C1] RIP: 0010:default_idle+0xf/0x20 [ 133.492036][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 133.511639][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 133.517704][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 133.525668][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 133.533636][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 133.541703][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 133.549667][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 133.557644][ C1] ? __cfi_default_idle+0x10/0x10 [ 133.562676][ C1] arch_cpu_idle+0x1c/0x20 [ 133.567115][ C1] default_idle_call+0x71/0x1d0 [ 133.571972][ C1] do_idle+0x1f1/0x640 [ 133.576051][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 133.581878][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 133.587075][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 133.592987][ C1] ? complete+0x167/0x1c0 [ 133.597320][ C1] cpu_startup_entry+0x43/0x60 [ 133.602084][ C1] start_secondary+0x119/0x120 [ 133.606847][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 133.612808][ C1] [ 133.615840][ C0] CPU: 0 PID: 186 Comm: crond Tainted: G D syzkaller #0 [ 133.615869][ C1] FAULT_INJECTION: forcing a failure. [ 133.615869][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 133.624169][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 133.624181][ C0] Call Trace: [ 133.624188][ C0] [ 133.653120][ C0] __dump_stack+0x21/0x24 [ 133.657475][ C0] dump_stack_lvl+0x110/0x170 [ 133.662169][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 133.667204][ C0] ? calc_wheel_index+0x230/0x8d0 [ 133.672230][ C0] ? timer_update_keys+0xb0/0xb0 [ 133.677184][ C0] dump_stack+0x15/0x24 [ 133.681348][ C0] should_fail_ex+0x3bf/0x510 [ 133.686038][ C0] __should_failslab+0xac/0xf0 [ 133.690812][ C0] should_failslab+0x9/0x20 [ 133.695309][ C0] kmem_cache_alloc_node+0x42/0x330 [ 133.700506][ C0] ? __alloc_skb+0xe8/0x4a0 [ 133.705007][ C0] __alloc_skb+0xe8/0x4a0 [ 133.709333][ C0] ndisc_send_rs+0x31d/0x870 [ 133.713922][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 133.718870][ C0] addrconf_rs_timer+0x35a/0x600 [ 133.723833][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 133.729292][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 133.734329][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 133.739876][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 133.745330][ C0] call_timer_fn+0x46/0x2a0 [ 133.749837][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 133.755292][ C0] __run_timers+0x646/0x9b0 [ 133.759818][ C0] ? calc_index+0x200/0x200 [ 133.764329][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 133.769544][ C0] run_timer_softirq+0x6a/0xf0 [ 133.774327][ C0] handle_softirqs+0x1d7/0x600 [ 133.779087][ C0] __irq_exit_rcu+0x52/0xf0 [ 133.783587][ C0] irq_exit_rcu+0x9/0x10 [ 133.787832][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 133.793486][ C0] [ 133.796414][ C0] [ 133.799355][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 133.805350][ C0] RIP: 0010:__kasan_check_read+0x0/0x20 [ 133.810902][ C0] Code: 6b 86 eb 0a 48 c7 c7 aa 60 5f 86 48 89 de e8 af 1e 3f 03 45 31 ff eb d1 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 f1 16 b4 ef <55> 48 89 e5 89 f6 48 8b 4d 08 31 d2 e8 df e7 ff ff 5d c3 66 2e 0f [ 133.830539][ C0] RSP: 0018:ffffc90000c27ce8 EFLAGS: 00000293 [ 133.836613][ C0] RAX: ffffffff8157d44c RBX: ffffffff860afda0 RCX: ffff88811eadd100 [ 133.844580][ C0] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8711b9c0 [ 133.852556][ C0] RBP: ffffc90000c27cf0 R08: 0000000000000003 R09: 0000000000000004 [ 133.860542][ C0] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 133.868513][ C0] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff92000184fa0 [ 133.876492][ C0] ? __printk_cpu_sync_wait+0x2c/0x40 [ 133.881878][ C0] ? __printk_cpu_sync_wait+0x1c/0x40 [ 133.887262][ C0] dump_stack_lvl+0xce/0x170 [ 133.891871][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 133.896900][ C0] dump_stack+0x15/0x24 [ 133.901058][ C0] should_fail_ex+0x3bf/0x510 [ 133.905728][ C0] ? getname_flags+0xba/0x510 [ 133.910400][ C0] __should_failslab+0xac/0xf0 [ 133.915167][ C0] should_failslab+0x9/0x20 [ 133.919672][ C0] kmem_cache_alloc+0x3b/0x320 [ 133.924438][ C0] getname_flags+0xba/0x510 [ 133.928939][ C0] __x64_sys_unlink+0x3c/0x50 [ 133.933634][ C0] x64_sys_call+0x958/0x9a0 [ 133.938178][ C0] do_syscall_64+0x4c/0xa0 [ 133.942609][ C0] ? clear_bhb_loop+0x30/0x80 [ 133.947281][ C0] ? clear_bhb_loop+0x30/0x80 [ 133.951953][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 133.957870][ C0] RIP: 0033:0x7f1c65e42937 [ 133.962275][ C0] Code: 00 00 e9 a9 fd ff ff 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 5f 00 00 00 0f 05 c3 0f 1f 84 00 00 00 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 91 b4 0d 00 f7 d8 64 89 02 b8 [ 133.981876][ C0] RSP: 002b:00007fffd19bcc28 EFLAGS: 00000246 ORIG_RAX: 0000000000000057 [ 133.990302][ C0] RAX: ffffffffffffffda RBX: 00007f1c65fee490 RCX: 00007f1c65e42937 [ 133.998269][ C0] RDX: ffffffffffffff88 RSI: 00007f1c65fc77e8 RDI: 00007f1c65fc7764 [ 134.006505][ C0] RBP: 000000006a82b710 R08: 0000000000000000 R09: 0000000000000000 [ 134.014480][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 134.022625][ C0] R13: 000000000000003c R14: 0000000000000000 R15: 000000000000003c [ 134.030609][ C0] [ 134.033621][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G D syzkaller #0 [ 134.042398][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 134.052453][ C1] Call Trace: [ 134.055725][ C1] [ 134.058557][ C1] __dump_stack+0x21/0x24 [ 134.062891][ C1] dump_stack_lvl+0x110/0x170 [ 134.067569][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 134.072589][ C1] dump_stack+0x15/0x24 [ 134.076740][ C1] should_fail_ex+0x3bf/0x510 [ 134.081417][ C1] __should_failslab+0xac/0xf0 [ 134.086182][ C1] should_failslab+0x9/0x20 [ 134.090678][ C1] kmem_cache_alloc_bulk+0x2d/0x3c0 [ 134.095876][ C1] __napi_build_skb+0x144/0x200 [ 134.100718][ C1] __napi_alloc_skb+0x226/0x530 [ 134.105585][ C1] ? build_skb+0x1d9/0x220 [ 134.109995][ C1] page_to_skb+0x2c6/0xb50 [ 134.114413][ C1] receive_buf+0x469/0x4890 [ 134.118911][ C1] ? dump_stack_lvl+0x144/0x170 [ 134.123778][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 134.129319][ C1] ? virtnet_poll_tx+0x550/0x550 [ 134.134255][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 134.140078][ C1] ? __tasklet_schedule+0x20/0x20 [ 134.145184][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 134.150643][ C1] ? detach_buf_split+0x890/0xa90 [ 134.155668][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 134.160609][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 134.166065][ C1] virtnet_poll+0x5c9/0x1150 [ 134.170657][ C1] ? __kasan_check_write+0x14/0x20 [ 134.175765][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 134.180793][ C1] ? virtqueue_poll+0x173/0x220 [ 134.185645][ C1] ? virtnet_poll_tx+0x317/0x550 [ 134.190582][ C1] __napi_poll+0xcd/0x5d0 [ 134.194918][ C1] net_rx_action+0x4a3/0xa90 [ 134.199499][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 134.204623][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 134.209823][ C1] handle_softirqs+0x1d7/0x600 [ 134.214607][ C1] __irq_exit_rcu+0x52/0xf0 [ 134.219145][ C1] irq_exit_rcu+0x9/0x10 [ 134.223384][ C1] common_interrupt+0xbe/0xe0 [ 134.228059][ C1] [ 134.230979][ C1] [ 134.233901][ C1] asm_common_interrupt+0x27/0x40 [ 134.238931][ C1] RIP: 0010:default_idle+0xf/0x20 [ 134.243963][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 134.263589][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 134.269659][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 134.277681][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 134.285650][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 134.293616][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 134.301589][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 134.309562][ C1] ? __cfi_default_idle+0x10/0x10 [ 134.314615][ C1] arch_cpu_idle+0x1c/0x20 [ 134.319032][ C1] default_idle_call+0x71/0x1d0 [ 134.323881][ C1] do_idle+0x1f1/0x640 [ 134.327944][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 134.333748][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 134.338946][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 134.344762][ C1] ? complete+0x167/0x1c0 [ 134.349114][ C1] cpu_startup_entry+0x43/0x60 [ 134.353887][ C1] start_secondary+0x119/0x120 [ 134.358645][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 134.364538][ C1] [ 134.367551][ T6] CPU: 0 PID: 6 Comm: kworker/0:0 Tainted: G D syzkaller #0 [ 134.367602][ C1] FAULT_INJECTION: forcing a failure. [ 134.367602][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 134.376226][ T6] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 134.376240][ T6] Workqueue: usb_hub_wq hub_event [ 134.404155][ T6] Call Trace: [ 134.407434][ T6] [ 134.410367][ T6] __dump_stack+0x21/0x24 [ 134.414742][ T6] dump_stack_lvl+0x110/0x170 [ 134.419430][ T6] ? __cfi_dump_stack_lvl+0x8/0x8 [ 134.424474][ T6] ? __kasan_check_write+0x14/0x20 [ 134.429593][ T6] ? _raw_spin_lock_irqsave+0xc2/0x130 [ 134.435049][ T6] dump_stack+0x15/0x24 [ 134.439202][ T6] should_fail_ex+0x3bf/0x510 [ 134.443874][ T6] __should_failslab+0xac/0xf0 [ 134.448630][ T6] should_failslab+0x9/0x20 [ 134.453127][ T6] __kmem_cache_alloc_node+0x3d/0x2d0 [ 134.458515][ T6] ? usb_control_msg+0x74/0x3f0 [ 134.463358][ T6] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 134.469160][ T6] ? usb_control_msg+0x74/0x3f0 [ 134.474002][ T6] kmalloc_trace+0x29/0xb0 [ 134.478415][ T6] usb_control_msg+0x74/0x3f0 [ 134.483087][ T6] hub_ext_port_status+0xf2/0x6a0 [ 134.488136][ T6] hub_port_reset+0x658/0x16d0 [ 134.492900][ T6] hub_port_init+0x2b8/0x2980 [ 134.497573][ T6] ? __kasan_check_write+0x14/0x20 [ 134.502678][ T6] hub_event+0x242b/0x4310 [ 134.507096][ T6] ? __cfi_hub_event+0x10/0x10 [ 134.511861][ T6] ? __kasan_check_write+0x14/0x20 [ 134.516967][ T6] ? pwq_activate_inactive_work+0x2ea/0x3f0 [ 134.522856][ T6] process_one_work+0x717/0xc30 [ 134.527702][ T6] worker_thread+0xa4d/0x11d0 [ 134.532378][ T6] kthread+0x281/0x320 [ 134.536440][ T6] ? __cfi_worker_thread+0x10/0x10 [ 134.541542][ T6] ? __cfi_kthread+0x10/0x10 [ 134.546126][ T6] ret_from_fork+0x1f/0x30 [ 134.550539][ T6] [ 134.553551][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G D syzkaller #0 [ 134.562053][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 134.572107][ C1] Call Trace: [ 134.575380][ C1] [ 134.578212][ C1] __dump_stack+0x21/0x24 [ 134.582540][ C1] dump_stack_lvl+0x110/0x170 [ 134.587218][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 134.592240][ C1] dump_stack+0x15/0x24 [ 134.596392][ C1] should_fail_ex+0x3bf/0x510 [ 134.601066][ C1] __should_failslab+0xac/0xf0 [ 134.605831][ C1] should_failslab+0x9/0x20 [ 134.608885][ T102] FAULT_INJECTION: forcing a failure. [ 134.608885][ T102] name failslab, interval 1, probability 100, space 0, times -1 [ 134.610329][ C1] kmem_cache_alloc_bulk+0x2d/0x3c0 [ 134.628375][ C1] __napi_build_skb+0x144/0x200 [ 134.633235][ C1] __napi_alloc_skb+0x226/0x530 [ 134.638081][ C1] ? build_skb+0x1d9/0x220 [ 134.642493][ C1] page_to_skb+0x2c6/0xb50 [ 134.646913][ C1] receive_buf+0x469/0x4890 [ 134.651416][ C1] ? dump_stack_lvl+0x144/0x170 [ 134.656272][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 134.661809][ C1] ? virtnet_poll_tx+0x550/0x550 [ 134.666746][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 134.672552][ C1] ? __tasklet_schedule+0x20/0x20 [ 134.677579][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 134.683039][ C1] ? detach_buf_split+0x890/0xa90 [ 134.688064][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 134.692996][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 134.698450][ C1] virtnet_poll+0x5c9/0x1150 [ 134.703044][ C1] ? __kasan_check_write+0x14/0x20 [ 134.708156][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 134.713178][ C1] ? virtqueue_poll+0x173/0x220 [ 134.718024][ C1] ? virtnet_poll_tx+0x317/0x550 [ 134.722957][ C1] __napi_poll+0xcd/0x5d0 [ 134.727302][ C1] net_rx_action+0x4a3/0xa90 [ 134.731906][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 134.737008][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 134.742226][ C1] handle_softirqs+0x1d7/0x600 [ 134.746987][ C1] __irq_exit_rcu+0x52/0xf0 [ 134.751483][ C1] irq_exit_rcu+0x9/0x10 [ 134.755719][ C1] common_interrupt+0xbe/0xe0 [ 134.760398][ C1] [ 134.763320][ C1] [ 134.766240][ C1] asm_common_interrupt+0x27/0x40 [ 134.771268][ C1] RIP: 0010:default_idle+0xf/0x20 [ 134.776314][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 134.795912][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 134.801976][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 134.810026][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 134.817993][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 134.826050][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 134.834014][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 134.841982][ C1] ? __cfi_default_idle+0x10/0x10 [ 134.847010][ C1] arch_cpu_idle+0x1c/0x20 [ 134.851419][ C1] default_idle_call+0x71/0x1d0 [ 134.856281][ C1] do_idle+0x1f1/0x640 [ 134.860370][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 134.866174][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 134.871365][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 134.877167][ C1] ? complete+0x167/0x1c0 [ 134.881495][ C1] cpu_startup_entry+0x43/0x60 [ 134.886255][ C1] start_secondary+0x119/0x120 [ 134.891011][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 134.896907][ C1] [ 134.899923][ T102] CPU: 0 PID: 102 Comm: udevd Tainted: G D syzkaller #0 [ 134.899933][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 134.899959][ C1] rcu: 1-....: (2 GPs behind) idle=acac/0/0x3 softirq=2409/2410 fqs=148 [ 134.908249][ T102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 134.914813][ C1] (t=10001 jiffies g=1045 q=184 ncpus=2) [ 134.923195][ T102] Call Trace: [ 134.923205][ T102] [ 134.933238][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G D syzkaller #0 [ 134.938929][ T102] __dump_stack+0x21/0x24 [ 134.942192][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 134.945114][ T102] dump_stack_lvl+0x110/0x170 [ 134.953588][ C1] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 134.957898][ T102] ? __cfi_dump_stack_lvl+0x8/0x8 [ 134.967933][ C1] Code: e6 00 02 00 00 31 ff e8 ea 56 77 fc 49 81 e5 00 02 00 00 75 07 e8 1c 52 77 fc eb 06 e8 15 52 77 fc fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 40 [ 134.972586][ T102] ? __cfi_avc_has_perm_noaudit+0x10/0x10 [ 134.978028][ C1] RSP: 0018:ffffc900001b06e0 EFLAGS: 00000246 [ 134.983029][ T102] dump_stack+0x15/0x24 [ 135.002610][ C1] [ 135.002619][ C1] RAX: ffffffff84fa142b RBX: ffffffff860afda0 RCX: ffff888100335100 [ 135.008312][ T102] should_fail_ex+0x3bf/0x510 [ 135.014378][ C1] RDX: 0000000000000100 RSI: 0000000000000200 RDI: 0000000000000000 [ 135.018517][ T102] ? __sigqueue_alloc+0x13f/0x210 [ 135.020834][ C1] RBP: ffffc900001b0778 R08: 0000000000000003 R09: 0000000000000004 [ 135.028832][ T102] __should_failslab+0xac/0xf0 [ 135.033486][ C1] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 135.041617][ T102] should_failslab+0x9/0x20 [ 135.046625][ C1] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff920000360dc [ 135.054622][ T102] kmem_cache_alloc+0x3b/0x320 [ 135.059386][ C1] FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 135.067350][ T102] __sigqueue_alloc+0x13f/0x210 [ 135.071831][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 135.079788][ T102] __send_signal_locked+0x19d/0xb70 [ 135.084531][ C1] CR2: 000000110c31d5f9 CR3: 00000001305f3000 CR4: 00000000003506a0 [ 135.093440][ T102] ? __task_pid_nr_ns+0x1e2/0x280 [ 135.098276][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 135.104833][ T102] send_signal_locked+0x416/0x580 [ 135.110008][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 135.117969][ T102] do_send_sig_info+0xd6/0x210 [ 135.122973][ C1] Call Trace: [ 135.130924][ T102] group_send_sig_info+0x118/0x2e0 [ 135.135929][ C1] [ 135.143883][ T102] ? __cfi_group_send_sig_info+0x10/0x10 [ 135.148633][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 135.151894][ T102] ? radix_tree_lookup+0x248/0x290 [ 135.156999][ C1] dump_stack+0x15/0x24 [ 135.159823][ T102] ? idr_find+0x41/0x60 [ 135.165428][ C1] should_fail_ex+0x3bf/0x510 [ 135.170424][ T102] kill_proc_info+0x50/0x90 [ 135.175526][ C1] __should_failslab+0xac/0xf0 [ 135.179677][ T102] __se_sys_kill+0x15f/0x540 [ 135.183822][ C1] should_failslab+0x9/0x20 [ 135.188478][ T102] ? __x64_sys_kill+0x70/0x70 [ 135.192956][ C1] kmem_cache_alloc_bulk+0x2d/0x3c0 [ 135.197696][ T102] ? xfd_validate_state+0x70/0x150 [ 135.202264][ C1] __napi_build_skb+0x144/0x200 [ 135.206743][ T102] ? fpregs_restore_userregs+0x128/0x260 [ 135.211397][ C1] __napi_alloc_skb+0x226/0x530 [ 135.216570][ T102] __x64_sys_kill+0x5b/0x70 [ 135.221654][ C1] ? build_skb+0x1d9/0x220 [ 135.226480][ T102] x64_sys_call+0x4b/0x9a0 [ 135.232086][ C1] page_to_skb+0x2c6/0xb50 [ 135.236917][ T102] do_syscall_64+0x4c/0xa0 [ 135.241401][ C1] receive_buf+0x469/0x4890 [ 135.245804][ T102] ? clear_bhb_loop+0x30/0x80 [ 135.250196][ C1] ? dump_stack_lvl+0x144/0x170 [ 135.254585][ T102] ? clear_bhb_loop+0x30/0x80 [ 135.258982][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 135.263461][ T102] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 135.268115][ C1] ? virtnet_poll_tx+0x550/0x550 [ 135.272957][ T102] RIP: 0033:0x7fb337e5f357 [ 135.277632][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 135.283154][ T102] Code: 48 83 c4 08 c3 66 0f 1f 44 00 00 48 8b 15 99 1a 19 00 64 89 02 b8 ff ff ff ff eb e4 0f 1f 80 00 00 00 00 b8 3e 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 71 1a 19 00 f7 d8 64 89 01 48 [ 135.289028][ C1] ? __tasklet_schedule+0x20/0x20 [ 135.293938][ T102] RSP: 002b:00007ffc463876f8 EFLAGS: 00000297 [ 135.298329][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 135.304109][ T102] ORIG_RAX: 000000000000003e [ 135.323695][ C1] ? detach_buf_split+0x890/0xa90 [ 135.328699][ T102] RAX: ffffffffffffffda RBX: 00007ffc46387700 RCX: 00007fb337e5f357 [ 135.334741][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 135.340174][ T102] RDX: 00005597c65a0240 RSI: 000000000000000f RDI: 000000000000013b [ 135.344840][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 135.349850][ T102] RBP: 0000000000000000 R08: 0000000000000010 R09: 00005597c6596020 [ 135.357809][ C1] virtnet_poll+0x5c9/0x1150 [ 135.362723][ T102] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000000 [ 135.370686][ C1] ? __kasan_check_write+0x14/0x20 [ 135.376132][ T102] R13: 000055978b69a100 R14: 0000000000000000 R15: 00007ffc46387930 [ 135.384088][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 135.388660][ T102] [ 135.396613][ C1] ? virtqueue_poll+0x173/0x220 [ 135.422518][ C1] ? virtnet_poll_tx+0x317/0x550 [ 135.427483][ C1] __napi_poll+0xcd/0x5d0 [ 135.431797][ C1] net_rx_action+0x4a3/0xa90 [ 135.436368][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 135.441457][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 135.446672][ C1] handle_softirqs+0x1d7/0x600 [ 135.451425][ C1] __irq_exit_rcu+0x52/0xf0 [ 135.455923][ C1] irq_exit_rcu+0x9/0x10 [ 135.460140][ C1] common_interrupt+0xbe/0xe0 [ 135.464810][ C1] [ 135.467815][ C1] [ 135.471218][ C1] asm_common_interrupt+0x27/0x40 [ 135.476243][ C1] RIP: 0010:default_idle+0xf/0x20 [ 135.481248][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 135.500833][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 135.506901][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 135.514868][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 135.522821][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 135.530775][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 135.538745][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 135.546702][ C1] ? __cfi_default_idle+0x10/0x10 [ 135.551713][ C1] arch_cpu_idle+0x1c/0x20 [ 135.556119][ C1] default_idle_call+0x71/0x1d0 [ 135.560962][ C1] do_idle+0x1f1/0x640 [ 135.565021][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 135.570831][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 135.576025][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 135.581815][ C1] ? complete+0x167/0x1c0 [ 135.586138][ C1] cpu_startup_entry+0x43/0x60 [ 135.590951][ C1] start_secondary+0x119/0x120 [ 135.595785][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 135.601681][ C1] [ 135.604739][ C1] FAULT_INJECTION: forcing a failure. [ 135.604739][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 135.605061][ T315] FAULT_INJECTION: forcing a failure. [ 135.605061][ T315] name failslab, interval 1, probability 100, space 0, times -1 [ 135.617708][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G D syzkaller #0 [ 135.638878][ T322] ------------[ cut here ]------------ [ 135.639010][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 135.644559][ T322] kernel BUG at mm/mmap.c:2854! [ 135.654607][ C1] Call Trace: [ 135.654616][ C1] [ 135.654623][ C1] __dump_stack+0x21/0x24 [ 135.654649][ C1] dump_stack_lvl+0x110/0x170 [ 135.674523][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 135.679551][ C1] dump_stack+0x15/0x24 [ 135.683704][ C1] should_fail_ex+0x3bf/0x510 [ 135.688373][ C1] __should_failslab+0xac/0xf0 [ 135.689006][ T322] invalid opcode: 0000 [#2] PREEMPT SMP KASAN [ 135.693128][ C1] should_failslab+0x9/0x20 [ 135.699179][ T322] CPU: 0 PID: 322 Comm: syz.4.5 Tainted: G D syzkaller #0 [ 135.703660][ C1] kmem_cache_alloc_bulk+0x2d/0x3c0 [ 135.712132][ T322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 135.717311][ C1] __napi_build_skb+0x144/0x200 [ 135.727357][ T322] RIP: 0010:mmap_region+0x1fe8/0x2130 [ 135.732193][ C1] __napi_alloc_skb+0x226/0x530 [ 135.737548][ T322] Code: 50 80 e1 07 80 c1 03 38 c1 0f 8c e1 f9 ff ff 48 8b 7c 24 50 e8 69 46 09 00 e9 d2 f9 ff ff e8 ef ba c3 ff 0f 0b e8 e8 ba c3 ff <0f> 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 66 e7 ff ff 48 89 df e8 [ 135.742385][ C1] ? build_skb+0x1d9/0x220 [ 135.761984][ T322] RSP: 0018:ffffc9000dcefa40 EFLAGS: 00010293 [ 135.766396][ C1] page_to_skb+0x2c6/0xb50 [ 135.772442][ T322] RAX: ffffffff81adab58 RBX: 00007f7493c73000 RCX: ffff88810fa4bcc0 [ 135.776835][ C1] receive_buf+0x469/0x4890 [ 135.784788][ T322] RDX: 0000000000000000 RSI: 00007f7493c72fff RDI: 00007f7493c73000 [ 135.789272][ C1] ? dump_stack_lvl+0x144/0x170 [ 135.797395][ T322] RBP: ffffc9000dcefc30 R08: ffff88810fa4bcc0 R09: 0000000000000003 [ 135.802232][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 135.810185][ T322] R10: 0000000000000003 R11: 0000000000000000 R12: 00007f7493c72fff [ 135.815707][ C1] ? virtnet_poll_tx+0x550/0x550 [ 135.823658][ T322] R13: 00007f7493c73000 R14: dffffc0000000000 R15: 00007f7493c52000 [ 135.828576][ C1] ? __tasklet_schedule_common+0x124/0x1b0 [ 135.836549][ T322] FS: 000055555b7b2500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 135.842337][ C1] ? __tasklet_schedule+0x20/0x20 [ 135.851250][ T322] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 135.856266][ C1] ? virtqueue_get_buf_ctx+0x47a/0xcf0 [ 135.862829][ T322] CR2: 00005597c65bcb98 CR3: 00000001330a1000 CR4: 00000000003506b0 [ 135.868273][ C1] ? detach_buf_split+0x890/0xa90 [ 135.876229][ T322] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 135.881232][ C1] ? virtqueue_get_buf+0x1f/0x30 [ 135.889209][ T322] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 135.894132][ C1] ? virtqueue_get_buf_ctx+0x6bc/0xcf0 [ 135.902088][ T322] Call Trace: [ 135.902097][ T322] [ 135.907526][ C1] virtnet_poll+0x5c9/0x1150 [ 135.910791][ T322] ? should_fail+0xb/0x10 [ 135.913710][ C1] ? __kasan_check_write+0x14/0x20 [ 135.918274][ T322] ? __cfi_mmap_region+0x10/0x10 [ 135.922583][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 135.927672][ T322] ? cap_mmap_addr+0x165/0x2e0 [ 135.932587][ C1] ? virtqueue_poll+0x173/0x220 [ 135.937587][ T322] ? futex_wake+0x5b7/0x8e0 [ 135.942332][ C1] ? virtnet_poll_tx+0x317/0x550 [ 135.947162][ T322] ? get_unmapped_area+0x30c/0x370 [ 135.951640][ C1] __napi_poll+0xcd/0x5d0 [ 135.956558][ T322] do_mmap+0x858/0xdd0 [ 135.961646][ C1] net_rx_action+0x4a3/0xa90 [ 135.965954][ T322] ? __cfi_do_mmap+0x10/0x10 [ 135.969999][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 135.974566][ T322] ? do_futex+0x2bf/0x430 [ 135.979133][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 135.984223][ T322] ? _copy_from_user+0x8f/0xc0 [ 135.988534][ C1] handle_softirqs+0x1d7/0x600 [ 135.994232][ T322] vm_mmap_pgoff+0x206/0x3f0 [ 135.998974][ C1] __irq_exit_rcu+0x52/0xf0 [ 136.003711][ T322] ? __cfi_vm_mmap_pgoff+0x10/0x10 [ 136.008278][ C1] irq_exit_rcu+0x9/0x10 [ 136.012755][ T322] ? __x64_sys_futex+0x100/0x100 [ 136.017840][ C1] common_interrupt+0xbe/0xe0 [ 136.022088][ T322] ? xfd_validate_state+0x70/0x150 [ 136.027005][ C1] [ 136.031656][ T322] ksys_mmap_pgoff+0xf6/0x1d0 [ 136.036744][ C1] [ 136.039691][ T322] __x64_sys_mmap+0xfa/0x110 [ 136.044347][ C1] asm_common_interrupt+0x27/0x40 [ 136.047330][ T322] x64_sys_call+0x8fd/0x9a0 [ 136.051905][ C1] RIP: 0010:default_idle+0xf/0x20 [ 136.056908][ T322] do_syscall_64+0x4c/0xa0 [ 136.061395][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 136.066398][ T322] ? clear_bhb_loop+0x30/0x80 [ 136.070798][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 136.090400][ T322] ? clear_bhb_loop+0x30/0x80 [ 136.090428][ T322] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 136.090448][ T322] RIP: 0033:0x7f7492d9de42 [ 136.090462][ T322] Code: 4f 01 00 0f 1f 44 00 00 41 f7 c1 ff 0f 00 00 75 27 55 89 cd 53 48 89 fb 48 85 ff 74 3b 41 89 ea 48 89 df b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 6e 5b 5d c3 0f 1f 00 48 c7 c0 e8 ff ff ff 64 [ 136.095117][ C1] [ 136.095125][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 136.101171][ T322] RSP: 002b:00007ffdbbed5aa8 EFLAGS: 00000246 [ 136.105827][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 136.111700][ T322] ORIG_RAX: 0000000000000009 [ 136.116177][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 136.135766][ T322] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7492d9de42 [ 136.138080][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 136.146033][ T322] RDX: 0000000000000000 RSI: 0000000000021000 RDI: 0000000000000000 [ 136.152078][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 136.160058][ T322] RBP: 0000000000020022 R08: 00000000ffffffff R09: 0000000000000000 [ 136.164720][ C1] ? __cfi_default_idle+0x10/0x10 [ 136.172676][ T322] R10: 0000000000020022 R11: 0000000000000246 R12: 00007ffdbbed5c10 [ 136.180663][ C1] arch_cpu_idle+0x1c/0x20 [ 136.188719][ T322] R13: ffffffffffffffc0 R14: 0000000000001000 R15: 0000000000000000 [ 136.196772][ C1] default_idle_call+0x71/0x1d0 [ 136.204818][ T322] [ 136.212789][ C1] do_idle+0x1f1/0x640 [ 136.217795][ T322] Modules linked in: [ 136.225750][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 136.259680][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 136.264887][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 136.270703][ C1] ? complete+0x167/0x1c0 [ 136.275031][ C1] cpu_startup_entry+0x43/0x60 [ 136.279791][ C1] start_secondary+0x119/0x120 [ 136.284553][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 136.290445][ C1] [ 136.293456][ T186] CPU: 0 PID: 186 Comm: crond Tainted: G D syzkaller #0 [ 136.293778][ C1] FAULT_INJECTION: forcing a failure. [ 136.293778][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 136.301807][ T186] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 136.301819][ T186] Call Trace: [ 136.301825][ T186] [ 136.301831][ T186] __dump_stack+0x21/0x24 [ 136.335663][ T186] dump_stack_lvl+0x110/0x170 [ 136.340346][ T186] ? __cfi_dump_stack_lvl+0x8/0x8 [ 136.345371][ T186] dump_stack+0x15/0x24 [ 136.349522][ T186] should_fail_ex+0x3bf/0x510 [ 136.354192][ T186] ? getname_flags+0xba/0x510 [ 136.358866][ T186] __should_failslab+0xac/0xf0 [ 136.363630][ T186] should_failslab+0x9/0x20 [ 136.368125][ T186] kmem_cache_alloc+0x3b/0x320 [ 136.372888][ T186] getname_flags+0xba/0x510 [ 136.377398][ T186] __x64_sys_unlink+0x3c/0x50 [ 136.382077][ T186] x64_sys_call+0x958/0x9a0 [ 136.386579][ T186] do_syscall_64+0x4c/0xa0 [ 136.390995][ T186] ? clear_bhb_loop+0x30/0x80 [ 136.395667][ T186] ? clear_bhb_loop+0x30/0x80 [ 136.400368][ T186] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 136.406257][ T186] RIP: 0033:0x7f1c65e42937 [ 136.410663][ T186] Code: 00 00 e9 a9 fd ff ff 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 5f 00 00 00 0f 05 c3 0f 1f 84 00 00 00 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 91 b4 0d 00 f7 d8 64 89 02 b8 [ 136.430265][ T186] RSP: 002b:00007fffd19bcc28 EFLAGS: 00000246 ORIG_RAX: 0000000000000057 [ 136.438731][ T186] RAX: ffffffffffffffda RBX: 00007f1c65fee490 RCX: 00007f1c65e42937 [ 136.446724][ T186] RDX: ffffffffffffff88 RSI: 00007f1c65fc77e8 RDI: 00007f1c65fc7764 [ 136.454707][ T186] RBP: 000000006a82b710 R08: 0000000000000000 R09: 0000000000000000 [ 136.462671][ T186] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 136.470638][ T186] R13: 000000000000003c R14: 0000000000000000 R15: 000000000000003c [ 136.478604][ T186] [ 136.481616][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G D syzkaller #0 [ 136.490120][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 136.500176][ C1] Call Trace: [ 136.503453][ C1] [ 136.506289][ C1] __dump_stack+0x21/0x24 [ 136.510627][ C1] dump_stack_lvl+0x110/0x170 [ 136.515299][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 136.520323][ C1] ? ip_route_input_rcu+0x1d75/0x2710 [ 136.525692][ C1] dump_stack+0x15/0x24 [ 136.529872][ C1] should_fail_ex+0x3bf/0x510 [ 136.534545][ C1] __should_failslab+0xac/0xf0 [ 136.539307][ C1] should_failslab+0x9/0x20 [ 136.543806][ C1] kmem_cache_alloc_node+0x42/0x330 [ 136.549010][ C1] ? __alloc_skb+0xe8/0x4a0 [ 136.553510][ C1] __alloc_skb+0xe8/0x4a0 [ 136.557835][ C1] ? __neigh_update+0xbdc/0x2140 [ 136.562770][ C1] arp_create+0xe8/0x800 [ 136.567026][ C1] arp_send_dst+0x8c/0x280 [ 136.568833][ T6] hub 5-0:1.0: hub_ext_port_status failed (err = -12) [ 136.571437][ C1] arp_process+0x1356/0x1900 [ 136.578182][ T6] FAULT_INJECTION: forcing a failure. [ 136.578182][ T6] name failslab, interval 1, probability 100, space 0, times -1 [ 136.582750][ C1] ? __cfi_arp_process+0x10/0x10 [ 136.582779][ C1] ? __cfi_packet_rcv+0x10/0x10 [ 136.605397][ C1] ? __netif_receive_skb_core+0x2ded/0x3580 [ 136.611305][ C1] ? __cfi_arp_process+0x10/0x10 [ 136.616250][ C1] NF_HOOK+0x177/0x1d0 [ 136.620325][ C1] ? __cfi_arp_process+0x10/0x10 [ 136.625262][ C1] ? arp_xmit+0x1f0/0x1f0 [ 136.629592][ C1] ? qdisc_run+0x240/0x240 [ 136.634042][ C1] ? ip_list_rcv+0x3e4/0x430 [ 136.638630][ C1] arp_rcv+0x2ef/0x480 [ 136.642703][ C1] ? __cfi_arp_rcv+0x10/0x10 [ 136.647299][ C1] __netif_receive_skb_list_core+0x73c/0x7b0 [ 136.653299][ C1] ? set_rps_cpu+0x5e0/0x5e0 [ 136.657891][ C1] netif_receive_skb_list_internal+0x7f8/0xaa0 [ 136.664046][ C1] ? __cfi_netif_receive_skb_list_internal+0x10/0x10 [ 136.670717][ C1] ? virtqueue_kick_prepare+0x304/0x480 [ 136.676260][ C1] napi_complete_done+0x375/0x7a0 [ 136.681286][ C1] ? __cfi_napi_complete_done+0x10/0x10 [ 136.686829][ C1] ? virtqueue_enable_cb_prepare+0x21b/0x500 [ 136.692827][ C1] virtnet_poll+0x9a8/0x1150 [ 136.697416][ C1] ? __kasan_check_write+0x14/0x20 [ 136.702525][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 136.707548][ C1] ? virtqueue_poll+0x173/0x220 [ 136.712393][ C1] ? virtnet_poll_tx+0x317/0x550 [ 136.717328][ C1] __napi_poll+0xcd/0x5d0 [ 136.721666][ C1] net_rx_action+0x4a3/0xa90 [ 136.726248][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 136.731351][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 136.736559][ C1] handle_softirqs+0x1d7/0x600 [ 136.741321][ C1] __irq_exit_rcu+0x52/0xf0 [ 136.745820][ C1] irq_exit_rcu+0x9/0x10 [ 136.750058][ C1] common_interrupt+0xbe/0xe0 [ 136.754735][ C1] [ 136.757669][ C1] [ 136.758891][ T337] ---[ end trace 0000000000000000 ]--- [ 136.760589][ C1] asm_common_interrupt+0x27/0x40 [ 136.771055][ C1] RIP: 0010:default_idle+0xf/0x20 [ 136.776080][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 136.778855][ T337] RIP: 0010:mmap_region+0x1fe8/0x2130 [ 136.795680][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 136.795702][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 136.795714][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 136.795725][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 136.818859][ T186] FAULT_INJECTION: forcing a failure. [ 136.818859][ T186] name failslab, interval 1, probability 100, space 0, times -1 [ 136.823050][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 136.851831][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 136.859801][ C1] ? __cfi_default_idle+0x10/0x10 [ 136.864851][ C1] arch_cpu_idle+0x1c/0x20 [ 136.868867][ T337] Code: 50 80 e1 07 80 c1 03 38 c1 0f 8c e1 f9 ff ff 48 8b 7c 24 50 e8 69 46 09 00 e9 d2 f9 ff ff e8 ef ba c3 ff 0f 0b e8 e8 ba c3 ff <0f> 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 66 e7 ff ff 48 89 df e8 [ 136.869263][ C1] default_idle_call+0x71/0x1d0 [ 136.893716][ C1] do_idle+0x1f1/0x640 [ 136.897821][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 136.903632][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 136.908835][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 136.914638][ C1] ? complete+0x167/0x1c0 [ 136.918964][ C1] cpu_startup_entry+0x43/0x60 [ 136.923724][ C1] start_secondary+0x119/0x120 [ 136.928502][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 136.934415][ C1] [ 136.937431][ T315] CPU: 0 PID: 315 Comm: udevd Tainted: G D syzkaller #0 [ 136.937486][ C1] FAULT_INJECTION: forcing a failure. [ 136.937486][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 136.945780][ T315] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 136.945792][ T315] Call Trace: [ 136.945798][ T315] [ 136.945805][ T315] __dump_stack+0x21/0x24 [ 136.979264][ T315] dump_stack_lvl+0x110/0x170 [ 136.983940][ T315] ? __cfi_dump_stack_lvl+0x8/0x8 [ 136.988959][ T315] dump_stack+0x15/0x24 [ 136.993109][ T315] should_fail_ex+0x3bf/0x510 [ 136.997793][ T315] ? mas_alloc_nodes+0x2d8/0x850 [ 137.002728][ T315] __should_failslab+0xac/0xf0 [ 137.007487][ T315] should_failslab+0x9/0x20 [ 137.011990][ T315] kmem_cache_alloc+0x3b/0x320 [ 137.016752][ T315] mas_alloc_nodes+0x2d8/0x850 [ 137.021512][ T315] mas_nomem+0xec/0x1f0 [ 137.025685][ T315] mas_store_gfp+0x231/0x3e0 [ 137.030267][ T315] ? __cfi_mas_store_gfp+0x10/0x10 [ 137.035370][ T315] ? mas_next+0x2b8/0x3a0 [ 137.039691][ T315] ? mas_find+0xdf/0x380 [ 137.043926][ T315] do_mas_align_munmap+0x8ac/0x1330 [ 137.049124][ T315] ? do_mas_munmap+0x2b0/0x2b0 [ 137.053882][ T315] ? mas_walk+0x207/0x250 [ 137.058203][ T315] do_mas_munmap+0x23d/0x2b0 [ 137.062791][ T315] __vm_munmap+0x1af/0x310 [ 137.067207][ T315] ? vm_munmap+0x30/0x30 [ 137.071480][ T315] __x64_sys_munmap+0x6b/0x80 [ 137.076152][ T315] x64_sys_call+0x8a/0x9a0 [ 137.080562][ T315] do_syscall_64+0x4c/0xa0 [ 137.084972][ T315] ? clear_bhb_loop+0x30/0x80 [ 137.089638][ T315] ? clear_bhb_loop+0x30/0x80 [ 137.094311][ T315] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 137.100205][ T315] RIP: 0033:0x7fb337f1e097 [ 137.104618][ T315] Code: 73 01 c3 48 8b 0d 61 2d 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 31 2d 0d 00 f7 d8 64 89 01 48 [ 137.124217][ T315] RSP: 002b:00007ffc46387528 EFLAGS: 00000206 ORIG_RAX: 000000000000000b [ 137.132625][ T315] RAX: ffffffffffffffda RBX: 00005597c6362f90 RCX: 00007fb337f1e097 [ 137.140611][ T315] RDX: 0000000000000000 RSI: 00000000009480e8 RDI: 00007fb337200000 [ 137.148576][ T315] RBP: 00005597c63602c0 R08: 00005597c65a0650 R09: 0000000000000006 [ 137.156536][ T315] R10: 0000000000000000 R11: 0000000000000206 R12: 000055978b699588 [ 137.164497][ T315] R13: 00007ffc463875b0 R14: 0000000000000000 R15: 0000000000000000 [ 137.172464][ T315] [ 137.175472][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G D syzkaller #0 [ 137.175527][ C0] FAULT_INJECTION: forcing a failure. [ 137.175527][ C0] name failslab, interval 1, probability 100, space 0, times -1 [ 137.183967][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 137.183979][ C1] Call Trace: [ 137.183984][ C1] [ 137.183991][ C1] __dump_stack+0x21/0x24 [ 137.217237][ C1] dump_stack_lvl+0x110/0x170 [ 137.221925][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 137.226962][ C1] ? ip_route_input_rcu+0x1d75/0x2710 [ 137.232342][ C1] dump_stack+0x15/0x24 [ 137.236496][ C1] should_fail_ex+0x3bf/0x510 [ 137.241167][ C1] __should_failslab+0xac/0xf0 [ 137.245931][ C1] should_failslab+0x9/0x20 [ 137.250426][ C1] kmem_cache_alloc_node+0x42/0x330 [ 137.255626][ C1] ? __alloc_skb+0xe8/0x4a0 [ 137.260126][ C1] __alloc_skb+0xe8/0x4a0 [ 137.264448][ C1] ? __neigh_update+0xbdc/0x2140 [ 137.269384][ C1] arp_create+0xe8/0x800 [ 137.273625][ C1] arp_send_dst+0x8c/0x280 [ 137.278036][ C1] arp_process+0x1356/0x1900 [ 137.282629][ C1] ? __cfi_arp_process+0x10/0x10 [ 137.287654][ C1] ? __cfi_packet_rcv+0x10/0x10 [ 137.292518][ C1] ? __netif_receive_skb_core+0x2ded/0x3580 [ 137.298413][ C1] ? __cfi_arp_process+0x10/0x10 [ 137.303348][ C1] NF_HOOK+0x177/0x1d0 [ 137.307421][ C1] ? __cfi_arp_process+0x10/0x10 [ 137.312367][ C1] ? arp_xmit+0x1f0/0x1f0 [ 137.316701][ C1] ? qdisc_run+0x240/0x240 [ 137.321116][ C1] ? ip_list_rcv+0x3e4/0x430 [ 137.325701][ C1] arp_rcv+0x2ef/0x480 [ 137.329771][ C1] ? __cfi_arp_rcv+0x10/0x10 [ 137.334359][ C1] __netif_receive_skb_list_core+0x73c/0x7b0 [ 137.340343][ C1] ? set_rps_cpu+0x5e0/0x5e0 [ 137.344943][ C1] netif_receive_skb_list_internal+0x7f8/0xaa0 [ 137.351099][ C1] ? __cfi_netif_receive_skb_list_internal+0x10/0x10 [ 137.357773][ C1] ? virtqueue_kick_prepare+0x304/0x480 [ 137.363404][ C1] napi_complete_done+0x375/0x7a0 [ 137.368438][ C1] ? __cfi_napi_complete_done+0x10/0x10 [ 137.373992][ C1] ? virtqueue_enable_cb_prepare+0x21b/0x500 [ 137.379970][ C1] virtnet_poll+0x9a8/0x1150 [ 137.384563][ C1] ? __kasan_check_write+0x14/0x20 [ 137.389671][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 137.394693][ C1] ? virtqueue_poll+0x173/0x220 [ 137.399543][ C1] ? virtnet_poll_tx+0x317/0x550 [ 137.404488][ C1] __napi_poll+0xcd/0x5d0 [ 137.408819][ C1] net_rx_action+0x4a3/0xa90 [ 137.413424][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 137.418531][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 137.423743][ C1] handle_softirqs+0x1d7/0x600 [ 137.428502][ C1] __irq_exit_rcu+0x52/0xf0 [ 137.432996][ C1] irq_exit_rcu+0x9/0x10 [ 137.437234][ C1] common_interrupt+0xbe/0xe0 [ 137.441934][ C1] [ 137.444857][ C1] [ 137.447783][ C1] asm_common_interrupt+0x27/0x40 [ 137.452813][ C1] RIP: 0010:default_idle+0xf/0x20 [ 137.457844][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 137.477451][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 137.483514][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 137.491479][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 137.499446][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 137.507410][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 137.515378][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 137.523363][ C1] ? __cfi_default_idle+0x10/0x10 [ 137.528391][ C1] arch_cpu_idle+0x1c/0x20 [ 137.532803][ C1] default_idle_call+0x71/0x1d0 [ 137.537646][ C1] do_idle+0x1f1/0x640 [ 137.541707][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 137.547513][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 137.552703][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 137.558505][ C1] ? complete+0x167/0x1c0 [ 137.562920][ C1] cpu_startup_entry+0x43/0x60 [ 137.567681][ C1] start_secondary+0x119/0x120 [ 137.572440][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 137.578334][ C1] [ 137.581348][ C0] CPU: 0 PID: 315 Comm: udevd Tainted: G D syzkaller #0 [ 137.581397][ C1] FAULT_INJECTION: forcing a failure. [ 137.581397][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 137.589676][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 137.589689][ C0] Call Trace: [ 137.589695][ C0] [ 137.618628][ C0] __dump_stack+0x21/0x24 [ 137.622959][ C0] dump_stack_lvl+0x110/0x170 [ 137.627628][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 137.632649][ C0] ? plist_add+0x3e6/0x470 [ 137.637062][ C0] dump_stack+0x15/0x24 [ 137.641211][ C0] should_fail_ex+0x3bf/0x510 [ 137.645880][ C0] __should_failslab+0xac/0xf0 [ 137.650641][ C0] should_failslab+0x9/0x20 [ 137.655139][ C0] kmem_cache_alloc_node+0x42/0x330 [ 137.660336][ C0] ? __alloc_skb+0xe8/0x4a0 [ 137.664842][ C0] ? __cfi_resched_curr+0x10/0x10 [ 137.669871][ C0] __alloc_skb+0xe8/0x4a0 [ 137.674222][ C0] ndisc_send_rs+0x31d/0x870 [ 137.678802][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 137.683743][ C0] addrconf_rs_timer+0x35a/0x600 [ 137.688700][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 137.694159][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 137.699613][ C0] call_timer_fn+0x46/0x2a0 [ 137.704117][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 137.709572][ C0] __run_timers+0x646/0x9b0 [ 137.714078][ C0] ? calc_index+0x200/0x200 [ 137.718579][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 137.723810][ C0] run_timer_softirq+0x6a/0xf0 [ 137.728577][ C0] handle_softirqs+0x1d7/0x600 [ 137.733337][ C0] __irq_exit_rcu+0x52/0xf0 [ 137.737860][ C0] irq_exit_rcu+0x9/0x10 [ 137.742100][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 137.747736][ C0] [ 137.750670][ C0] [ 137.753596][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 137.759573][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 137.765026][ C0] Code: e6 00 02 00 00 31 ff e8 ea 56 77 fc 49 81 e5 00 02 00 00 75 07 e8 1c 52 77 fc eb 06 e8 15 52 77 fc fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 40 [ 137.784629][ C0] RSP: 0018:ffffc9000dc8f7e0 EFLAGS: 00000293 [ 137.790690][ C0] RAX: ffffffff84fa142b RBX: ffffffff860afda0 RCX: ffff888110016540 [ 137.798676][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 137.806637][ C0] RBP: ffffc9000dc8f878 R08: 0000000000000003 R09: 0000000000000004 [ 137.814599][ C0] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 137.822564][ C0] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff92001b91efc [ 137.830532][ C0] ? dump_stack_lvl+0x13b/0x170 [ 137.835387][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 137.840409][ C0] dump_stack+0x15/0x24 [ 137.844565][ C0] should_fail_ex+0x3bf/0x510 [ 137.849231][ C0] ? mas_alloc_nodes+0x2d8/0x850 [ 137.854165][ C0] __should_failslab+0xac/0xf0 [ 137.858941][ C0] should_failslab+0x9/0x20 [ 137.863438][ C0] kmem_cache_alloc+0x3b/0x320 [ 137.868200][ C0] mas_alloc_nodes+0x2d8/0x850 [ 137.872961][ C0] mas_nomem+0xec/0x1f0 [ 137.877111][ C0] mas_store_gfp+0x231/0x3e0 [ 137.881694][ C0] ? __cfi_mas_store_gfp+0x10/0x10 [ 137.886798][ C0] ? mas_next+0x2b8/0x3a0 [ 137.891120][ C0] ? mas_find+0xdf/0x380 [ 137.895357][ C0] do_mas_align_munmap+0x8ac/0x1330 [ 137.900561][ C0] ? do_mas_munmap+0x2b0/0x2b0 [ 137.905333][ C0] ? mas_walk+0x207/0x250 [ 137.909660][ C0] do_mas_munmap+0x23d/0x2b0 [ 137.914252][ C0] __vm_munmap+0x1af/0x310 [ 137.918667][ C0] ? vm_munmap+0x30/0x30 [ 137.922914][ C0] __x64_sys_munmap+0x6b/0x80 [ 137.927592][ C0] x64_sys_call+0x8a/0x9a0 [ 137.932005][ C0] do_syscall_64+0x4c/0xa0 [ 137.936417][ C0] ? clear_bhb_loop+0x30/0x80 [ 137.941091][ C0] ? clear_bhb_loop+0x30/0x80 [ 137.945848][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 137.951743][ C0] RIP: 0033:0x7fb337f1e097 [ 137.956153][ C0] Code: 73 01 c3 48 8b 0d 61 2d 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 31 2d 0d 00 f7 d8 64 89 01 48 [ 137.975752][ C0] RSP: 002b:00007ffc46387528 EFLAGS: 00000206 ORIG_RAX: 000000000000000b [ 137.984180][ C0] RAX: ffffffffffffffda RBX: 00005597c6362f90 RCX: 00007fb337f1e097 [ 137.992146][ C0] RDX: 0000000000000000 RSI: 00000000009480e8 RDI: 00007fb337200000 [ 138.000108][ C0] RBP: 00005597c63602c0 R08: 00005597c65a0650 R09: 0000000000000006 [ 138.008073][ C0] R10: 0000000000000000 R11: 0000000000000206 R12: 000055978b699588 [ 138.016038][ C0] R13: 00007ffc463875b0 R14: 0000000000000000 R15: 0000000000000000 [ 138.024005][ C0] [ 138.027018][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G D syzkaller #0 [ 138.027054][ C0] FAULT_INJECTION: forcing a failure. [ 138.027054][ C0] name failslab, interval 1, probability 100, space 0, times -1 [ 138.035517][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 138.035529][ C1] Call Trace: [ 138.035536][ C1] [ 138.035543][ C1] __dump_stack+0x21/0x24 [ 138.068806][ C1] dump_stack_lvl+0x110/0x170 [ 138.073490][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 138.078510][ C1] ? ip_route_input_rcu+0x1d75/0x2710 [ 138.083885][ C1] dump_stack+0x15/0x24 [ 138.088046][ C1] should_fail_ex+0x3bf/0x510 [ 138.092723][ C1] __should_failslab+0xac/0xf0 [ 138.097491][ C1] should_failslab+0x9/0x20 [ 138.101997][ C1] kmem_cache_alloc_node+0x42/0x330 [ 138.107195][ C1] ? __alloc_skb+0xe8/0x4a0 [ 138.111702][ C1] __alloc_skb+0xe8/0x4a0 [ 138.116034][ C1] ? __neigh_update+0xbdc/0x2140 [ 138.120978][ C1] arp_create+0xe8/0x800 [ 138.125227][ C1] arp_send_dst+0x8c/0x280 [ 138.129651][ C1] arp_process+0x1356/0x1900 [ 138.134259][ C1] ? __cfi_arp_process+0x10/0x10 [ 138.139197][ C1] ? __cfi_packet_rcv+0x10/0x10 [ 138.144075][ C1] ? __netif_receive_skb_core+0x2ded/0x3580 [ 138.149973][ C1] ? __cfi_arp_process+0x10/0x10 [ 138.154924][ C1] NF_HOOK+0x177/0x1d0 [ 138.158988][ C1] ? __cfi_arp_process+0x10/0x10 [ 138.163923][ C1] ? arp_xmit+0x1f0/0x1f0 [ 138.168253][ C1] ? qdisc_run+0x240/0x240 [ 138.172689][ C1] ? ip_list_rcv+0x3e4/0x430 [ 138.177278][ C1] arp_rcv+0x2ef/0x480 [ 138.181360][ C1] ? __cfi_arp_rcv+0x10/0x10 [ 138.185952][ C1] __netif_receive_skb_list_core+0x73c/0x7b0 [ 138.191936][ C1] ? set_rps_cpu+0x5e0/0x5e0 [ 138.196538][ C1] netif_receive_skb_list_internal+0x7f8/0xaa0 [ 138.202766][ C1] ? __cfi_netif_receive_skb_list_internal+0x10/0x10 [ 138.209523][ C1] ? virtqueue_kick_prepare+0x304/0x480 [ 138.215069][ C1] napi_complete_done+0x375/0x7a0 [ 138.220091][ C1] ? __cfi_napi_complete_done+0x10/0x10 [ 138.225627][ C1] ? virtqueue_enable_cb_prepare+0x21b/0x500 [ 138.231606][ C1] virtnet_poll+0x9a8/0x1150 [ 138.236197][ C1] ? __kasan_check_write+0x14/0x20 [ 138.241314][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 138.246345][ C1] ? virtqueue_poll+0x173/0x220 [ 138.251212][ C1] ? virtnet_poll_tx+0x317/0x550 [ 138.256159][ C1] __napi_poll+0xcd/0x5d0 [ 138.260499][ C1] net_rx_action+0x4a3/0xa90 [ 138.265089][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 138.270219][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 138.275430][ C1] handle_softirqs+0x1d7/0x600 [ 138.280206][ C1] __irq_exit_rcu+0x52/0xf0 [ 138.284702][ C1] irq_exit_rcu+0x9/0x10 [ 138.288937][ C1] common_interrupt+0xbe/0xe0 [ 138.293618][ C1] [ 138.296542][ C1] [ 138.299461][ C1] asm_common_interrupt+0x27/0x40 [ 138.304489][ C1] RIP: 0010:default_idle+0xf/0x20 [ 138.309559][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 138.329161][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 138.335239][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 138.343207][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 138.351175][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 138.359148][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 138.367111][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 138.375081][ C1] ? __cfi_default_idle+0x10/0x10 [ 138.380107][ C1] arch_cpu_idle+0x1c/0x20 [ 138.384523][ C1] default_idle_call+0x71/0x1d0 [ 138.389373][ C1] do_idle+0x1f1/0x640 [ 138.393458][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 138.399267][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 138.404463][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 138.410268][ C1] ? complete+0x167/0x1c0 [ 138.414600][ C1] cpu_startup_entry+0x43/0x60 [ 138.419380][ C1] start_secondary+0x119/0x120 [ 138.424145][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 138.430040][ C1] [ 138.433061][ C0] CPU: 0 PID: 315 Comm: udevd Tainted: G D syzkaller #0 [ 138.433133][ C1] FAULT_INJECTION: forcing a failure. [ 138.433133][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 138.441385][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 138.441398][ C0] Call Trace: [ 138.441403][ C0] [ 138.441410][ C0] __dump_stack+0x21/0x24 [ 138.474659][ C0] dump_stack_lvl+0x110/0x170 [ 138.479339][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 138.484365][ C0] ? calc_wheel_index+0x230/0x8d0 [ 138.489392][ C0] ? timer_update_keys+0xb0/0xb0 [ 138.494328][ C0] dump_stack+0x15/0x24 [ 138.498488][ C0] should_fail_ex+0x3bf/0x510 [ 138.503159][ C0] __should_failslab+0xac/0xf0 [ 138.507922][ C0] should_failslab+0x9/0x20 [ 138.512420][ C0] kmem_cache_alloc_node+0x42/0x330 [ 138.517615][ C0] ? __alloc_skb+0xe8/0x4a0 [ 138.522108][ C0] __alloc_skb+0xe8/0x4a0 [ 138.526429][ C0] ndisc_send_rs+0x31d/0x870 [ 138.531009][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 138.535947][ C0] addrconf_rs_timer+0x35a/0x600 [ 138.540910][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 138.546368][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 138.551393][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 138.556941][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 138.562401][ C0] call_timer_fn+0x46/0x2a0 [ 138.566907][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 138.572369][ C0] __run_timers+0x646/0x9b0 [ 138.576884][ C0] ? calc_index+0x200/0x200 [ 138.581390][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 138.586594][ C0] run_timer_softirq+0x6a/0xf0 [ 138.591361][ C0] handle_softirqs+0x1d7/0x600 [ 138.596122][ C0] __irq_exit_rcu+0x52/0xf0 [ 138.600620][ C0] irq_exit_rcu+0x9/0x10 [ 138.604859][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 138.610498][ C0] [ 138.613418][ C0] [ 138.616339][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 138.622417][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 138.627879][ C0] Code: e6 00 02 00 00 31 ff e8 ea 56 77 fc 49 81 e5 00 02 00 00 75 07 e8 1c 52 77 fc eb 06 e8 15 52 77 fc fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 40 [ 138.647570][ C0] RSP: 0018:ffffc9000dc8f7e0 EFLAGS: 00000293 [ 138.653636][ C0] RAX: ffffffff84fa142b RBX: ffffffff860afda0 RCX: ffff888110016540 [ 138.661605][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 138.669569][ C0] RBP: ffffc9000dc8f878 R08: 0000000000000003 R09: 0000000000000004 [ 138.677571][ C0] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 138.685536][ C0] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff92001b91efc [ 138.693507][ C0] ? dump_stack_lvl+0x13b/0x170 [ 138.698365][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 138.703388][ C0] dump_stack+0x15/0x24 [ 138.707545][ C0] should_fail_ex+0x3bf/0x510 [ 138.712215][ C0] ? mas_alloc_nodes+0x2d8/0x850 [ 138.717149][ C0] __should_failslab+0xac/0xf0 [ 138.721911][ C0] should_failslab+0x9/0x20 [ 138.726413][ C0] kmem_cache_alloc+0x3b/0x320 [ 138.731187][ C0] mas_alloc_nodes+0x2d8/0x850 [ 138.735947][ C0] mas_nomem+0xec/0x1f0 [ 138.740099][ C0] mas_store_gfp+0x231/0x3e0 [ 138.744681][ C0] ? __cfi_mas_store_gfp+0x10/0x10 [ 138.749786][ C0] ? mas_next+0x2b8/0x3a0 [ 138.754108][ C0] ? mas_find+0xdf/0x380 [ 138.758350][ C0] do_mas_align_munmap+0x8ac/0x1330 [ 138.763557][ C0] ? do_mas_munmap+0x2b0/0x2b0 [ 138.768341][ C0] ? mas_walk+0x207/0x250 [ 138.772665][ C0] do_mas_munmap+0x23d/0x2b0 [ 138.777263][ C0] __vm_munmap+0x1af/0x310 [ 138.781690][ C0] ? vm_munmap+0x30/0x30 [ 138.785938][ C0] __x64_sys_munmap+0x6b/0x80 [ 138.790614][ C0] x64_sys_call+0x8a/0x9a0 [ 138.795027][ C0] do_syscall_64+0x4c/0xa0 [ 138.799444][ C0] ? clear_bhb_loop+0x30/0x80 [ 138.804119][ C0] ? clear_bhb_loop+0x30/0x80 [ 138.808793][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 138.814689][ C0] RIP: 0033:0x7fb337f1e097 [ 138.819097][ C0] Code: 73 01 c3 48 8b 0d 61 2d 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 31 2d 0d 00 f7 d8 64 89 01 48 [ 138.838698][ C0] RSP: 002b:00007ffc46387528 EFLAGS: 00000206 ORIG_RAX: 000000000000000b [ 138.847110][ C0] RAX: ffffffffffffffda RBX: 00005597c6362f90 RCX: 00007fb337f1e097 [ 138.855096][ C0] RDX: 0000000000000000 RSI: 00000000009480e8 RDI: 00007fb337200000 [ 138.863090][ C0] RBP: 00005597c63602c0 R08: 00005597c65a0650 R09: 0000000000000006 [ 138.871057][ C0] R10: 0000000000000000 R11: 0000000000000206 R12: 000055978b699588 [ 138.879019][ C0] R13: 00007ffc463875b0 R14: 0000000000000000 R15: 0000000000000000 [ 138.886986][ C0] [ 138.890021][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G D syzkaller #0 [ 138.890054][ C0] FAULT_INJECTION: forcing a failure. [ 138.890054][ C0] name failslab, interval 1, probability 100, space 0, times -1 [ 138.898566][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 138.921453][ C1] Call Trace: [ 138.924764][ C1] [ 138.927597][ C1] __dump_stack+0x21/0x24 [ 138.931927][ C1] dump_stack_lvl+0x110/0x170 [ 138.936608][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 138.941638][ C1] ? ip_route_input_rcu+0x1d75/0x2710 [ 138.947016][ C1] dump_stack+0x15/0x24 [ 138.951174][ C1] should_fail_ex+0x3bf/0x510 [ 138.955849][ C1] __should_failslab+0xac/0xf0 [ 138.960616][ C1] should_failslab+0x9/0x20 [ 138.965116][ C1] kmem_cache_alloc_node+0x42/0x330 [ 138.970313][ C1] ? __alloc_skb+0xe8/0x4a0 [ 138.974811][ C1] __alloc_skb+0xe8/0x4a0 [ 138.979134][ C1] ? __neigh_update+0xbdc/0x2140 [ 138.984073][ C1] arp_create+0xe8/0x800 [ 138.988318][ C1] arp_send_dst+0x8c/0x280 [ 138.992733][ C1] arp_process+0x1356/0x1900 [ 138.997330][ C1] ? __cfi_arp_process+0x10/0x10 [ 139.002286][ C1] ? __cfi_packet_rcv+0x10/0x10 [ 139.007140][ C1] ? __netif_receive_skb_core+0x2ded/0x3580 [ 139.013054][ C1] ? __cfi_arp_process+0x10/0x10 [ 139.018011][ C1] NF_HOOK+0x177/0x1d0 [ 139.022100][ C1] ? __cfi_arp_process+0x10/0x10 [ 139.027050][ C1] ? arp_xmit+0x1f0/0x1f0 [ 139.031394][ C1] ? qdisc_run+0x240/0x240 [ 139.035831][ C1] ? ip_list_rcv+0x3e4/0x430 [ 139.040423][ C1] arp_rcv+0x2ef/0x480 [ 139.044509][ C1] ? __cfi_arp_rcv+0x10/0x10 [ 139.049120][ C1] __netif_receive_skb_list_core+0x73c/0x7b0 [ 139.055109][ C1] ? set_rps_cpu+0x5e0/0x5e0 [ 139.059703][ C1] netif_receive_skb_list_internal+0x7f8/0xaa0 [ 139.065852][ C1] ? __cfi_netif_receive_skb_list_internal+0x10/0x10 [ 139.072528][ C1] ? virtqueue_kick_prepare+0x304/0x480 [ 139.078085][ C1] napi_complete_done+0x375/0x7a0 [ 139.083124][ C1] ? __cfi_napi_complete_done+0x10/0x10 [ 139.088670][ C1] ? virtqueue_enable_cb_prepare+0x21b/0x500 [ 139.094669][ C1] virtnet_poll+0x9a8/0x1150 [ 139.099301][ C1] ? __kasan_check_write+0x14/0x20 [ 139.104410][ C1] ? __cfi_virtnet_poll+0x10/0x10 [ 139.109435][ C1] ? virtqueue_poll+0x173/0x220 [ 139.114286][ C1] ? virtnet_poll_tx+0x317/0x550 [ 139.119261][ C1] __napi_poll+0xcd/0x5d0 [ 139.123597][ C1] net_rx_action+0x4a3/0xa90 [ 139.128185][ C1] ? __cfi_net_rx_action+0x10/0x10 [ 139.133294][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 139.138501][ C1] handle_softirqs+0x1d7/0x600 [ 139.143289][ C1] __irq_exit_rcu+0x52/0xf0 [ 139.147873][ C1] irq_exit_rcu+0x9/0x10 [ 139.152114][ C1] common_interrupt+0xbe/0xe0 [ 139.156794][ C1] [ 139.159717][ C1] [ 139.162637][ C1] asm_common_interrupt+0x27/0x40 [ 139.167670][ C1] RIP: 0010:default_idle+0xf/0x20 [ 139.172703][ C1] Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 53 5b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 139.192308][ C1] RSP: 0018:ffffc90000147dd8 EFLAGS: 00000257 [ 139.198388][ C1] RAX: ffff8881f6f00000 RBX: ffff888100335100 RCX: e3c9d39e1b682500 [ 139.206362][ C1] RDX: 0000000000000001 RSI: ffffffff85ca6940 RDI: ffffffff85ca6900 [ 139.214341][ C1] RBP: ffffc90000147dd8 R08: ffff8881f6f348b3 R09: 1ffff1103ede6916 [ 139.222326][ C1] R10: 0000000000000000 R11: ffffffff8500d380 R12: dffffc0000000000 [ 139.230301][ C1] R13: 0000000000000001 R14: ffff888100335100 R15: dffffc0000000000 [ 139.238270][ C1] ? __cfi_default_idle+0x10/0x10 [ 139.243323][ C1] arch_cpu_idle+0x1c/0x20 [ 139.247734][ C1] default_idle_call+0x71/0x1d0 [ 139.252582][ C1] do_idle+0x1f1/0x640 [ 139.256667][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 139.262477][ C1] ? idle_inject_timer_fn+0x60/0x60 [ 139.267669][ C1] ? _raw_spin_unlock_irqrestore+0x5a/0x80 [ 139.273473][ C1] ? complete+0x167/0x1c0 [ 139.277803][ C1] cpu_startup_entry+0x43/0x60 [ 139.282597][ C1] start_secondary+0x119/0x120 [ 139.287453][ C1] secondary_startup_64_no_verify+0xce/0xdb [ 139.293353][ C1] [ 139.296367][ C0] CPU: 0 PID: 315 Comm: udevd Tainted: G D syzkaller #0 [ 139.296692][ T311] FAULT_INJECTION: forcing a failure. [ 139.296692][ T311] name failslab, interval 1, probability 100, space 0, times -1 [ 139.304691][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 139.304703][ C0] Call Trace: [ 139.304709][ C0] [ 139.304715][ C0] __dump_stack+0x21/0x24 [ 139.304739][ C0] dump_stack_lvl+0x110/0x170 [ 139.304743][ C1] FAULT_INJECTION: forcing a failure. [ 139.304743][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 139.304761][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 139.304781][ C0] ? calc_wheel_index+0x230/0x8d0 [ 139.304806][ C0] ? timer_update_keys+0xb0/0xb0 [ 139.304829][ C0] dump_stack+0x15/0x24 [ 139.304853][ C0] should_fail_ex+0x3bf/0x510 [ 139.304874][ C0] __should_failslab+0xac/0xf0 [ 139.304897][ C0] should_failslab+0x9/0x20 [ 139.304914][ C0] kmem_cache_alloc_node+0x42/0x330 [ 139.304938][ C0] ? __alloc_skb+0xe8/0x4a0 [ 139.304955][ C0] __alloc_skb+0xe8/0x4a0 [ 139.304972][ C0] ndisc_send_rs+0x31d/0x870 [ 139.304988][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 139.305014][ C0] addrconf_rs_timer+0x35a/0x600 [ 139.305037][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 139.305057][ C0] ? _raw_spin_lock_irq+0x95/0xf0 [ 139.305079][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 139.305104][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 139.305124][ C0] call_timer_fn+0x46/0x2a0 [ 139.305146][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 139.305166][ C0] __run_timers+0x646/0x9b0 [ 139.305191][ C0] ? calc_index+0x200/0x200 [ 139.305214][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 139.305243][ C0] run_timer_softirq+0x6a/0xf0 [ 139.305268][ C0] handle_softirqs+0x1d7/0x600 [ 139.305288][ C0] __irq_exit_rcu+0x52/0xf0 [ 139.305306][ C0] irq_exit_rcu+0x9/0x10 [ 139.305323][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 139.305350][ C0] [ 139.305356][ C0] [ 139.305362][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 139.305388][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 139.305411][ C0] Code: e6 00 02 00 00 31 ff e8 ea 56 77 fc 49 81 e5 00 02 00 00 75 07 e8 1c 52 77 fc eb 06 e8 15 52 77 fc fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 40 [ 139.305427][ C0] RSP: 0018:ffffc9000dc8f7e0 EFLAGS: 00000293 [ 139.305443][ C0] RAX: ffffffff84fa142b RBX: ffffffff860afda0 RCX: ffff888110016540 [ 139.305456][ C0] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 139.305468][ C0] RBP: ffffc9000dc8f878 R08: 0000000000000003 R09: 0000000000000004 [ 139.305480][ C0] R10: dffffc0000000000 R11: fffffbfff0e23738 R12: dffffc0000000000 [ 139.305493][ C0] R13: 0000000000000200 R14: dffffc0000000004 R15: 1ffff92001b91efc [ 139.305508][ C0] ? dump_stack_lvl+0x13b/0x170 [ 139.305529][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 139.305551][ C0] dump_stack+0x15/0x24 [ 139.305571][ C0] should_fail_ex+0x3bf/0x510 [ 139.305587][ C0] ? mas_alloc_nodes+0x2d8/0x850 [ 139.305606][ C0] __should_failslab+0xac/0xf0 [ 139.305644][ C0] should_failslab+0x9/0x20 [ 139.305661][ C0] kmem_cache_alloc+0x3b/0x320 [ 139.305684][ C0] mas_alloc_nodes+0x2d8/0x850 [ 139.305704][ C0] mas_nomem+0xec/0x1f0 [ 139.305722][ C0] mas_store_gfp+0x231/0x3e0 [ 139.305741][ C0] ? __cfi_mas_store_gfp+0x10/0x10 [ 139.305760][ C0] ? mas_next+0x2b8/0x3a0 [ 139.305778][ C0] ? mas_find+0xdf/0x380 [ 139.305797][ C0] do_mas_align_munmap+0x8ac/0x1330 [ 139.305825][ C0] ? do_mas_munmap+0x2b0/0x2b0 [ 139.305852][ C0] ? mas_walk+0x207/0x250 [ 139.305869][ C0] do_mas_munmap+0x23d/0x2b0 [ 139.305895][ C0] __vm_munmap+0x1af/0x310 [ 139.305919][ C0] ? vm_munmap+0x30/0x30 [ 139.305946][ C0] __x64_sys_munmap+0x6b/0x80 [ 139.305970][ C0] x64_sys_call+0x8a/0x9a0 [ 139.305991][ C0] do_syscall_64+0x4c/0xa0 [ 139.306011][ C0] ? clear_bhb_loop+0x30/0x80 [ 139.306027][ C0] ? clear_bhb_loop+0x30/0x80 [ 139.306043][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 139.306067][ C0] RIP: 0033:0x7fb337f1e097 [ 139.306082][ C0] Code: 73 01 c3 48 8b 0d 61 2d 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 31 2d 0d 00 f7 d8 64 89 01 48 [ 139.306097][ C0] RSP: 002b:00007ffc46387528 EFLAGS: 00000206 ORIG_RAX: 000000000000000b [ 139.306114][ C0] RAX: ffffffffffffffda RBX: 00005597c6362f90 RCX: 00007fb337f1e097 [ 139.306126][ C0] RDX: 0000000000000000 RSI: 00000000009480e8 RDI: 00007fb337200000 [ 139.306135][ C0] RBP: 00005597c63602c0 R08: 00005597c65a0650 R09: 0000000000000006 [ 139.306145][ C0] R10: 0000000000000000 R11: 0000000000000206 R12: 000055978b699588 [ 139.306155][ C0] R13: 00007ffc463875b0 R14: 0000000000000000 R15: 0000000000000000 [ 139.306167][ C0] [ 139.306191][ C1] CPU: 1 PID: 311 Comm: syz.0.1 Tainted: G D syzkaller #0 [ 139.306203][ C0] FAULT_INJECTION: forcing a failure. [ 139.306203][ C0] name failslab, interval 1, probability 100, space 0, times -1 [ 139.306209][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 139.306220][ C1] Call Trace: [ 139.306225][ C1] [ 139.306231][ C1] __dump_stack+0x21/0x24 [ 139.306258][ C1] dump_stack_lvl+0x110/0x170 [ 139.306278][ C1] ? __cfi_dump_stack_lvl+0x8/0x8 [ 139.306298][ C1] ? detach_entity_load_avg+0x790/0x790 [ 139.306319][ C1] dump_stack+0x15/0x24 [ 139.306338][ C1] should_fail_ex+0x3bf/0x510 [ 139.306354][ C1] __should_failslab+0xac/0xf0 [ 139.306376][ C1] should_failslab+0x9/0x20 [ 139.306393][ C1] kmem_cache_alloc_node+0x42/0x330 [ 139.306416][ C1] ? __alloc_skb+0xe8/0x4a0 [ 139.306432][ C1] ? __kasan_check_write+0x14/0x20 [ 139.306450][ C1] __alloc_skb+0xe8/0x4a0 [ 139.306467][ C1] ndisc_send_rs+0x31d/0x870 [ 139.306483][ C1] ? ipv6_get_lladdr+0x1be/0x200 [ 139.306507][ C1] addrconf_rs_timer+0x35a/0x600 [ 139.306527][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 139.306548][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 139.306568][ C1] call_timer_fn+0x46/0x2a0 [ 139.306589][ C1] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 139.306610][ C1] __run_timers+0x646/0x9b0 [ 139.306633][ C1] ? calc_index+0x200/0x200 [ 139.306656][ C1] ? kvm_sched_clock_read+0x18/0x40 [ 139.306681][ C1] run_timer_softirq+0x6a/0xf0 [ 139.306708][ C1] handle_softirqs+0x1d7/0x600 [ 139.306727][ C1] __irq_exit_rcu+0x52/0xf0 [ 139.306744][ C1] irq_exit_rcu+0x9/0x10 [ 139.306761][ C1] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 139.306788][ C1] [ 139.306793][ C1] [ 139.306799][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 139.306825][ C1] RIP: 0010:vprintk_emit+0x148/0x420 [ 139.306846][ C1] Code: 00 00 00 bf 01 00 00 00 e8 95 0a f5 ff e8 c0 14 00 00 89 c3 31 ff 89 c6 e8 35 e0 19 00 85 db 4c 8b 2c 24 74 0c e8 08 dc 19 00 e3 02 00 00 eb 45 48 c7 c3 80 b5 0e 87 48 c7 c7 80 b5 0e 87 be [ 139.306861][ C1] RSP: 0018:ffffc9000dc4f4e0 EFLAGS: 00000293 [ 139.306876][ C1] RAX: ffffffff81578bfc RBX: 0000000000000200 RCX: ffff88810eb92880 [ 139.306889][ C1] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 139.306899][ C1] RBP: ffffc9000dc4f588 R08: 0000000000000003 R09: 0000000000000004 [ 139.306911][ C1] R10: dffffc0000000000 R11: fffff52001b89e8c R12: dffffc0000000000 [ 139.306925][ C1] R13: 1ffff92001b89ea0 R14: 00000000ffffffff R15: 0000000000000061 [ 139.306939][ C1] ? vprintk_emit+0x30c/0x420 [ 139.306960][ C1] ? __cfi_vprintk_emit+0x10/0x10 [ 139.306979][ C1] ? __alloc_pages+0x1fa/0x610 [ 139.307002][ C1] ? wp_page_copy+0x27e/0x1490 [ 139.307020][ C1] ? do_wp_page+0x9b5/0xf70 [ 139.307035][ C1] ? handle_mm_fault+0x114f/0x26b0 [ 139.307052][ C1] vprintk_default+0x26/0x30 [ 139.307072][ C1] vprintk+0x7a/0x80 [ 139.307094][ C1] _printk+0xda/0x128 [ 139.307110][ C1] ? __cfi__printk+0x8/0x8 [ 139.307131][ C1] ? prep_new_page+0x1c/0x110 [ 139.307155][ C1] should_fail_ex+0x3a1/0x510 [ 139.307171][ C1] ? mas_alloc_nodes+0x2d8/0x850 [ 139.307190][ C1] __should_failslab+0xac/0xf0 [ 139.307211][ C1] should_failslab+0x9/0x20 [ 139.307228][ C1] kmem_cache_alloc+0x3b/0x320 [ 139.307251][ C1] mas_alloc_nodes+0x2d8/0x850 [ 139.307271][ C1] mas_preallocate+0xe3d/0x1430 [ 139.307290][ C1] ? __cfi_mas_preallocate+0x10/0x10 [ 139.307310][ C1] ? rwsem_write_trylock+0x136/0x300 [ 139.307336][ C1] vma_expand+0x437/0xad0 [ 139.307360][ C1] mmap_region+0xf04/0x2130 [ 139.307382][ C1] ? should_fail+0xb/0x10 [ 139.307400][ C1] ? __cfi_mmap_region+0x10/0x10 [ 139.307423][ C1] ? cap_mmap_addr+0x165/0x2e0 [ 139.307439][ C1] ? futex_wake+0x5b7/0x8e0 [ 139.307459][ C1] ? get_unmapped_area+0x30c/0x370 [ 139.307483][ C1] do_mmap+0x858/0xdd0 [ 139.307507][ C1] ? __cfi_do_mmap+0x10/0x10 [ 139.307528][ C1] ? do_futex+0x2bf/0x430 [ 139.307543][ C1] ? _copy_from_user+0x8f/0xc0 [ 139.307569][ C1] vm_mmap_pgoff+0x206/0x3f0 [ 139.307587][ C1] ? __cfi_vm_mmap_pgoff+0x10/0x10 [ 139.307603][ C1] ? __x64_sys_futex+0x100/0x100 [ 139.307619][ C1] ? xfd_validate_state+0x70/0x150 [ 139.307642][ C1] ksys_mmap_pgoff+0xf6/0x1d0 [ 139.307670][ C1] __x64_sys_mmap+0xfa/0x110 [ 139.307688][ C1] x64_sys_call+0x8fd/0x9a0 [ 139.307707][ C1] do_syscall_64+0x4c/0xa0 [ 139.307727][ C1] ? clear_bhb_loop+0x30/0x80 [ 139.307743][ C1] ? clear_bhb_loop+0x30/0x80 [ 139.307759][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 139.307784][ C1] RIP: 0033:0x7f9038b9de42 [ 139.307807][ C1] Code: 4f 01 00 0f 1f 44 00 00 41 f7 c1 ff 0f 00 00 75 27 55 89 cd 53 48 89 fb 48 85 ff 74 3b 41 89 ea 48 89 df b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 6e 5b 5d c3 0f 1f 00 48 c7 c0 e8 ff ff ff 64 [ 139.307822][ C1] RSP: 002b:00007ffda7fd77c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 139.307838][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9038b9de42 [ 139.307850][ C1] RDX: 0000000000000000 RSI: 0000000000021000 RDI: 0000000000000000 [ 139.307862][ C1] RBP: 0000000000020022 R08: 00000000ffffffff R09: 0000000000000000 [ 139.307874][ C1] R10: 0000000000020022 R11: 0000000000000246 R12: 00007ffda7fd7930 [ 139.307886][ C1] R13: ffffffffffffffc0 R14: 0000000000001000 R15: 0000000000000000 [ 139.307901][ C1] [ 139.307907][ C0] CPU: 0 PID: 315 Comm: udevd Tainted: G D syzkaller #0 [ 139.307911][ C1] FAULT_INJECTION: forcing a failure. [ 139.307911][ C1] name failslab, interval 1, probability 100, space 0, times -1 [ 139.307927][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 139.307938][ C0] Call Trace: [ 139.307943][ C0] [ 139.307949][ C0] __dump_stack+0x21/0x24 [ 139.307969][ C0] dump_stack_lvl+0x110/0x170 [ 139.307989][ C0] ? __cfi_dump_stack_lvl+0x8/0x8 [ 139.308009][ C0] ? calc_wheel_index+0x230/0x8d0 [ 139.308032][ C0] ? timer_update_keys+0xb0/0xb0 [ 139.308055][ C0] dump_stack+0x15/0x24 [ 139.308074][ C0] should_fail_ex+0x3bf/0x510 [ 139.308090][ C0] __should_failslab+0xac/0xf0 [ 139.308112][ C0] should_failslab+0x9/0x20 [ 139.308129][ C0] kmem_cache_alloc_node+0x42/0x330 [ 139.308152][ C0] ? __alloc_skb+0xe8/0x4a0 [ 139.308169][ C0] __alloc_skb+0xe8/0x4a0 [ 139.308186][ C0] ndisc_send_rs+0x31d/0x870 [ 139.308202][ C0] ? ipv6_get_lladdr+0x1be/0x200 [ 139.308226][ C0] addrconf_rs_timer+0x35a/0x600 [ 139.308245][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 139.308266][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 139.308285][ C0] call_timer_fn+0x46/0x2a0 [ 139.308307][ C0] ? __cfi_addrconf_rs_timer+0x10/0x10 [ 139.308326][ C0] __run_timers+0x646/0x9b0 [ 139.308351][ C0] ? calc_index+0x200/0x200 [ 139.308374][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 139.308399][ C0] run_timer_softirq+0x6a/0xf0 [ 139.308420][ C0] handle_softirqs+0x1d7/0x600 [ 139.308440][ C0] __irq_exit_rcu+0x52/0xf0 [ 139.308458][ C0] irq_exit_rcu+0x9/0x10 [ 139.308474][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0 [ 139.308501][ C0] [ 139.308506][ C0] [ 139.308512][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 139.308538][ C0] RIP: 0010:dump_stack_lvl+0x144/0x170 [ 139.308560][ C0] Code: e6 00 02 00 00 31 ff e8 ea 56 77 fc 49 81 e5 00 02 00 00 75 07 e8 1c 52 77 fc eb 06 e8 15 52 77 fc fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 40 [ 139.308575][ C0] RSP: 0018:ffffc9000dc8f7e0 EFLAGS: 00000293 [ 139.308589][ C0] RAX: ffffffff84fa142b RBX: ffffffff860afda0 RCX: ffff888110016540