./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3267328471 <...> Warning: Permanently added '10.128.0.230' (ED25519) to the list of known hosts. execve("./syz-executor3267328471", ["./syz-executor3267328471"], 0x7ffc822ecfa0 /* 10 vars */) = 0 brk(NULL) = 0x55555c004000 brk(0x55555c004d00) = 0x55555c004d00 arch_prctl(ARCH_SET_FS, 0x55555c004380) = 0 set_tid_address(0x55555c004650) = 5830 set_robust_list(0x55555c004660, 24) = 0 rseq(0x55555c004ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3267328471", 4096) = 28 getrandom("\xe3\x1e\x33\xa1\x29\x35\x1c\xe2", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555c004d00 brk(0x55555c025d00) = 0x55555c025d00 brk(0x55555c026000) = 0x55555c026000 mprotect(0x7f315643e000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5831 attached [pid 5831] set_robust_list(0x55555c004660, 24 [pid 5830] <... clone resumed>, child_tidptr=0x55555c004650) = 5831 [pid 5831] <... set_robust_list resumed>) = 0 [pid 5831] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5831] setpgid(0, 0) = 0 [pid 5831] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5831] write(3, "1000", 4) = 4 [pid 5831] close(3) = 0 [pid 5831] write(1, "executing program\n", 18executing program ) = 18 [pid 5831] openat(AT_FDCWD, "/dev/kvm", O_RDWR|O_TRUNC|O_NOATIME) = 3 [pid 5831] ioctl(3, KVM_CREATE_VM, 0) = 4 [pid 5831] ioctl(4, KVM_CREATE_IRQCHIP, 0) = 0 [ 89.162363][ T5831] kvm_intel: L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details. [pid 5831] ioctl(4, KVM_SET_USER_MEMORY_REGION, {slot=0, flags=0, guest_phys_addr=0, memory_size=40960, userspace_addr=0x200000bff000}) = 0 [pid 5831] ioctl(4, KVM_SET_USER_MEMORY_REGION, {slot=1, flags=0, guest_phys_addr=0x30000, memory_size=40960, userspace_addr=0x200000c09000}) = 0 [pid 5831] ioctl(4, KVM_SET_USER_MEMORY_REGION, {slot=2, flags=KVM_MEM_LOG_DIRTY_PAGES, guest_phys_addr=0x41000, memory_size=8192, userspace_addr=0x200000c13000}) = 0 [pid 5831] ioctl(4, KVM_SET_USER_MEMORY_REGION, {slot=3, flags=KVM_MEM_READONLY, guest_phys_addr=0x50000, memory_size=16384, userspace_addr=0x200000c15000}) = 0 [pid 5831] ioctl(4, KVM_SET_USER_MEMORY_REGION, {slot=4, flags=KVM_MEM_READONLY, guest_phys_addr=0x54000, memory_size=16384, userspace_addr=0x200000c19000}) = 0 [pid 5831] ioctl(4, KVM_SET_USER_MEMORY_REGION, {slot=5, flags=0, guest_phys_addr=0x58000, memory_size=4096, userspace_addr=0x200000c1d000}) = 0 [pid 5831] ioctl(4, KVM_SET_USER_MEMORY_REGION, {slot=6, flags=0, guest_phys_addr=0xfec00000, memory_size=4096, userspace_addr=0x200000c1e000}) = 0 [pid 5831] ioctl(4, KVM_SET_USER_MEMORY_REGION, {slot=7, flags=0, guest_phys_addr=0x200000, memory_size=4063232, userspace_addr=0x200000c1f000}) = 0 [pid 5831] ioctl(4, KVM_CREATE_VCPU, 0) = 5 [pid 5831] ioctl(5, KVM_GET_SREGS, {cs={base=0xffff0000, limit=65535, selector=61440, type=11, present=1, dpl=0, db=0, s=1, l=0, g=0, avl=0}, ...}) = 0 [pid 5831] ioctl(5, KVM_SET_SREGS, {cs={base=0, limit=4294967295, selector=80, type=11, present=1, dpl=0, db=0, s=1, l=1, g=1, avl=0}, ...}) = 0 [pid 5831] openat(AT_FDCWD, "/dev/kvm", O_RDWR) = 6 [pid 5831] ioctl(6, KVM_GET_SUPPORTED_CPUID, {nent=31, entries=[...]}) = 0 [pid 5831] ioctl(5, KVM_SET_CPUID2, {nent=31, entries=[...]}) = 0 [pid 5831] close(6) = 0 [pid 5831] ioctl(5, KVM_SET_REGS, {rax=0, ..., rsp=0xf80, rbp=0, ..., rip=0x54030, rflags=0x2}) = 0 [pid 5831] ioctl(5, KVM_SET_MP_STATE, 0x200000000000) = 0 [pid 5831] ioctl(5, KVM_SET_NESTED_STATE, 0x200000000a80) = -1 EINVAL (Invalid argument) [pid 5831] ioctl(5, KVM_SET_GUEST_DEBUG, 0x200000000080) = 0 [ 89.278458][ T5831] ------------[ cut here ]------------ [ 89.284224][ T5831] WARNING: CPU: 1 PID: 5831 at arch/x86/kvm/lapic.c:3407 kvm_apic_accept_events+0x341/0x490 [ 89.294432][ T5831] Modules linked in: [ 89.298421][ T5831] CPU: 1 UID: 0 PID: 5831 Comm: syz-executor326 Not tainted 6.15.0-syzkaller-12058-g64980441d269 #0 PREEMPT(full) [ 89.310787][ T5831] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 89.321032][ T5831] RIP: 0010:kvm_apic_accept_events+0x341/0x490 [ 89.327347][ T5831] Code: eb 0c e8 62 7a 72 00 eb 05 e8 5b 7a 72 00 45 31 ff 44 89 f8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 d6 88 13 0a cc e8 40 7a 72 00 90 <0f> 0b 90 e9 ec fd ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 4f [ 89.347290][ T5831] RSP: 0018:ffffc9000426f5c8 EFLAGS: 00010293 [ 89.353493][ T5831] RAX: ffffffff814dd090 RBX: 0000000000000002 RCX: ffff8880799a0000 [ 89.361709][ T5831] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000002 [ 89.369760][ T5831] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff81462863 [ 89.377858][ T5831] R10: dffffc0000000000 R11: fffffbfff1f3fabf R12: 0000000000000002 [ 89.385987][ T5831] R13: dffffc0000000000 R14: ffff88802ea0e200 R15: ffff88807c4082d8 [ 89.394213][ T5831] FS: 000055555c004380(0000) GS:ffff888125d89000(0000) knlGS:0000000000000000 [ 89.403262][ T5831] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.410156][ T5831] CR2: 0000200000bfe000 CR3: 0000000075920000 CR4: 00000000003526f0 [ 89.418302][ T5831] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.426377][ T5831] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.434791][ T5831] Call Trace: [ 89.438370][ T5831] [ 89.441334][ T5831] vcpu_run+0x76f/0x6f70 [ 89.445719][ T5831] ? __pfx_vcpu_run+0x10/0x10 [ 89.450468][ T5831] ? kvm_arch_vcpu_ioctl_run+0x1f3/0x1940 [ 89.456322][ T5831] ? rcu_is_watching+0x15/0xb0 [ 89.461141][ T5831] kvm_arch_vcpu_ioctl_run+0xfc9/0x1940 [ 89.466909][ T5831] ? kvm_arch_vcpu_ioctl_run+0x1f3/0x1940 [ 89.472920][ T5831] ? __pfx_kvm_arch_vcpu_ioctl_run+0x10/0x10 [ 89.478996][ T5831] ? lockdep_hardirqs_on+0x9c/0x150 [ 89.484374][ T5831] ? preempt_schedule+0xae/0xc0 [ 89.489229][ T5831] ? preempt_schedule_common+0x83/0xd0 [ 89.494735][ T5831] ? preempt_schedule+0xae/0xc0 [ 89.499609][ T5831] ? __pfx_preempt_schedule+0x10/0x10 [ 89.505231][ T5831] ? preempt_schedule_thunk+0x16/0x30 [ 89.510657][ T5831] kvm_vcpu_ioctl+0x95c/0xe90 [ 89.515601][ T5831] ? __pfx_kvm_vcpu_ioctl+0x10/0x10 [ 89.520840][ T5831] ? __asan_memset+0x22/0x50 [ 89.525570][ T5831] ? smack_file_ioctl+0x302/0x340 [ 89.530731][ T5831] ? __pfx_smack_file_ioctl+0x10/0x10 [ 89.536206][ T5831] ? __pfx_ptrace_notify+0x10/0x10 [ 89.541364][ T5831] ? bpf_lsm_file_ioctl+0x9/0x20 [ 89.546477][ T5831] ? __pfx_kvm_vcpu_ioctl+0x10/0x10 [ 89.551885][ T5831] __se_sys_ioctl+0xfc/0x170 [ 89.556528][ T5831] do_syscall_64+0xfa/0x3b0 [ 89.561064][ T5831] ? lockdep_hardirqs_on+0x9c/0x150 [ 89.566340][ T5831] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.572530][ T5831] ? clear_bhb_loop+0x60/0xb0 [ 89.577395][ T5831] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.583411][ T5831] RIP: 0033:0x7f31563c82f9 [ 89.587936][ T5831] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 89.607743][ T5831] RSP: 002b:00007ffd733d5998 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 89.616493][ T5831] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f31563c82f9 [ 89.624710][ T5831] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 89.632717][ T5831] RBP: 0000200000bfe000 R08: 0000000000000000 R09: 0000000000000000 [ 89.640884][ T5831] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd733d59c0 [ 89.649355][ T5831] R13: 0000200000bff000 R14: 0000000000000004 R15: 0000000000000001 [ 89.657726][ T5831] [ 89.660787][ T5831] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 89.668321][ T5831] CPU: 1 UID: 0 PID: 5831 Comm: syz-executor326 Not tainted 6.15.0-syzkaller-12058-g64980441d269 #0 PREEMPT(full) [ 89.680396][ T5831] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 89.690477][ T5831] Call Trace: [ 89.694217][ T5831] [ 89.697192][ T5831] dump_stack_lvl+0x99/0x250 [ 89.701792][ T5831] ? __asan_memcpy+0x40/0x70 [ 89.706385][ T5831] ? __pfx_dump_stack_lvl+0x10/0x10 [ 89.711675][ T5831] ? __pfx__printk+0x10/0x10 [ 89.716283][ T5831] panic+0x2db/0x790 [ 89.720183][ T5831] ? __pfx_panic+0x10/0x10 [ 89.724616][ T5831] ? show_trace_log_lvl+0x4fb/0x550 [ 89.729857][ T5831] __warn+0x31b/0x4b0 [ 89.733868][ T5831] ? kvm_apic_accept_events+0x341/0x490 [ 89.739434][ T5831] ? kvm_apic_accept_events+0x341/0x490 [ 89.745077][ T5831] report_bug+0x2be/0x4f0 [ 89.749596][ T5831] ? kvm_apic_accept_events+0x341/0x490 [ 89.755163][ T5831] ? kvm_apic_accept_events+0x341/0x490 [ 89.760747][ T5831] ? kvm_apic_accept_events+0x343/0x490 [ 89.766508][ T5831] handle_bug+0x84/0x160 [ 89.770877][ T5831] exc_invalid_op+0x1a/0x50 [ 89.775488][ T5831] asm_exc_invalid_op+0x1a/0x20 [ 89.780355][ T5831] RIP: 0010:kvm_apic_accept_events+0x341/0x490 [ 89.786522][ T5831] Code: eb 0c e8 62 7a 72 00 eb 05 e8 5b 7a 72 00 45 31 ff 44 89 f8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 d6 88 13 0a cc e8 40 7a 72 00 90 <0f> 0b 90 e9 ec fd ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 4f [ 89.806254][ T5831] RSP: 0018:ffffc9000426f5c8 EFLAGS: 00010293 [ 89.812341][ T5831] RAX: ffffffff814dd090 RBX: 0000000000000002 RCX: ffff8880799a0000 [ 89.820321][ T5831] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000002 [ 89.828299][ T5831] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff81462863 [ 89.836365][ T5831] R10: dffffc0000000000 R11: fffffbfff1f3fabf R12: 0000000000000002 [ 89.844362][ T5831] R13: dffffc0000000000 R14: ffff88802ea0e200 R15: ffff88807c4082d8 [ 89.852406][ T5831] ? kvm_arch_vcpu_ioctl_run+0x1f3/0x1940 [ 89.858153][ T5831] ? kvm_apic_accept_events+0x340/0x490 [ 89.863811][ T5831] ? kvm_apic_accept_events+0x340/0x490 [ 89.869388][ T5831] vcpu_run+0x76f/0x6f70 [ 89.873789][ T5831] ? __pfx_vcpu_run+0x10/0x10 [ 89.878482][ T5831] ? kvm_arch_vcpu_ioctl_run+0x1f3/0x1940 [ 89.884215][ T5831] ? rcu_is_watching+0x15/0xb0 [ 89.889026][ T5831] kvm_arch_vcpu_ioctl_run+0xfc9/0x1940 [ 89.894620][ T5831] ? kvm_arch_vcpu_ioctl_run+0x1f3/0x1940 [ 89.900361][ T5831] ? __pfx_kvm_arch_vcpu_ioctl_run+0x10/0x10 [ 89.906367][ T5831] ? lockdep_hardirqs_on+0x9c/0x150 [ 89.911666][ T5831] ? preempt_schedule+0xae/0xc0 [ 89.916530][ T5831] ? preempt_schedule_common+0x83/0xd0 [ 89.922094][ T5831] ? preempt_schedule+0xae/0xc0 [ 89.926963][ T5831] ? __pfx_preempt_schedule+0x10/0x10 [ 89.932351][ T5831] ? preempt_schedule_thunk+0x16/0x30 [ 89.938024][ T5831] kvm_vcpu_ioctl+0x95c/0xe90 [ 89.942710][ T5831] ? __pfx_kvm_vcpu_ioctl+0x10/0x10 [ 89.947945][ T5831] ? __asan_memset+0x22/0x50 [ 89.952644][ T5831] ? smack_file_ioctl+0x302/0x340 [ 89.957677][ T5831] ? __pfx_smack_file_ioctl+0x10/0x10 [ 89.963060][ T5831] ? __pfx_ptrace_notify+0x10/0x10 [ 89.968280][ T5831] ? bpf_lsm_file_ioctl+0x9/0x20 [ 89.973238][ T5831] ? __pfx_kvm_vcpu_ioctl+0x10/0x10 [ 89.978622][ T5831] __se_sys_ioctl+0xfc/0x170 [ 89.983310][ T5831] do_syscall_64+0xfa/0x3b0 [ 89.987827][ T5831] ? lockdep_hardirqs_on+0x9c/0x150 [ 89.993121][ T5831] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.999208][ T5831] ? clear_bhb_loop+0x60/0xb0 [ 90.003911][ T5831] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.010249][ T5831] RIP: 0033:0x7f31563c82f9 [ 90.014673][ T5831] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 90.034774][ T5831] RSP: 002b:00007ffd733d5998 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 90.043230][ T5831] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f31563c82f9 [ 90.051225][ T5831] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 90.059202][ T5831] RBP: 0000200000bfe000 R08: 0000000000000000 R09: 0000000000000000 [ 90.067376][ T5831] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd733d59c0 [ 90.076347][ T5831] R13: 0000200000bff000 R14: 0000000000000004 R15: 0000000000000001 [ 90.084408][ T5831] [ 90.087815][ T5831] Kernel Offset: disabled [ 90.093053][ T5831] Rebooting in 86400 seconds..