./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2793925804 <...> Warning: Permanently added '10.128.0.174' (ED25519) to the list of known hosts. execve("./syz-executor2793925804", ["./syz-executor2793925804"], 0x7ffc31ad8a10 /* 10 vars */) = 0 brk(NULL) = 0x555566bb6000 brk(0x555566bb6d00) = 0x555566bb6d00 arch_prctl(ARCH_SET_FS, 0x555566bb6380) = 0 set_tid_address(0x555566bb6650) = 5840 set_robust_list(0x555566bb6660, 24) = 0 rseq(0x555566bb6ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2793925804", 4096) = 28 getrandom("\xe9\x4c\x04\x87\xad\xfc\x1a\x39", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555566bb6d00 brk(0x555566bd7d00) = 0x555566bd7d00 brk(0x555566bd8000) = 0x555566bd8000 mprotect(0x7fc83ecd4000, 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 5841 attached [pid 5841] set_robust_list(0x555566bb6660, 24 [pid 5840] <... clone resumed>, child_tidptr=0x555566bb6650) = 5841 [pid 5841] <... set_robust_list resumed>) = 0 [pid 5841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5841] setpgid(0, 0) = 0 [pid 5841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "1000", 4) = 4 [pid 5841] close(3) = 0 [pid 5841] write(1, "executing program\n", 18executing program ) = 18 [pid 5841] openat(AT_FDCWD, "/dev/kvm", O_RDWR|O_TRUNC|O_NOATIME) = 3 [pid 5841] ioctl(3, KVM_CREATE_VM, 0) = 4 [pid 5841] ioctl(4, KVM_CREATE_IRQCHIP, 0) = 0 [pid 5841] ioctl(4, KVM_SET_USER_MEMORY_REGION, {slot=0, flags=0, guest_phys_addr=0, memory_size=40960, userspace_addr=0x200000bff000}) = 0 [pid 5841] ioctl(4, KVM_SET_USER_MEMORY_REGION, {slot=1, flags=0, guest_phys_addr=0x30000, memory_size=40960, userspace_addr=0x200000c09000}) = 0 [pid 5841] 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 5841] 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 5841] 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 5841] ioctl(4, KVM_SET_USER_MEMORY_REGION, {slot=5, flags=0, guest_phys_addr=0x58000, memory_size=4096, userspace_addr=0x200000c1d000}) = 0 [pid 5841] ioctl(4, KVM_SET_USER_MEMORY_REGION, {slot=6, flags=0, guest_phys_addr=0xfec00000, memory_size=4096, userspace_addr=0x200000c1e000}) = 0 [pid 5841] ioctl(4, KVM_SET_USER_MEMORY_REGION, {slot=7, flags=0, guest_phys_addr=0x200000, memory_size=4063232, userspace_addr=0x200000c1f000}) = 0 [pid 5841] ioctl(4, KVM_CREATE_VCPU, 0) = 5 [ 88.250788][ T5841] 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 5841] 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 5841] 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 5841] openat(AT_FDCWD, "/dev/kvm", O_RDWR) = 6 [pid 5841] ioctl(6, KVM_GET_SUPPORTED_CPUID, {nent=31, entries=[...]}) = 0 [pid 5841] ioctl(5, KVM_SET_CPUID2, {nent=31, entries=[...]}) = 0 [pid 5841] close(6) = 0 [pid 5841] ioctl(5, KVM_SET_REGS, {rax=0, ..., rsp=0xf80, rbp=0, ..., rip=0x54030, rflags=0x2}) = 0 [pid 5841] ioctl(5, KVM_SET_MP_STATE, 0x200000000000) = 0 [pid 5841] ioctl(5, KVM_SET_NESTED_STATE, 0x200000000a80) = -1 EINVAL (Invalid argument) [pid 5841] ioctl(5, KVM_SET_GUEST_DEBUG, 0x200000000080) = 0 [ 88.384367][ T5841] ------------[ cut here ]------------ [ 88.389989][ T5841] WARNING: CPU: 0 PID: 5841 at arch/x86/kvm/lapic.c:3407 kvm_apic_accept_events+0x341/0x490 [ 88.400353][ T5841] Modules linked in: [ 88.404481][ T5841] CPU: 0 UID: 0 PID: 5841 Comm: syz-executor279 Not tainted 6.15.0-syzkaller-12058-g64980441d269 #0 PREEMPT(full) [ 88.416677][ T5841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 88.426919][ T5841] RIP: 0010:kvm_apic_accept_events+0x341/0x490 [ 88.433135][ T5841] Code: eb 0c e8 62 7b 72 00 eb 05 e8 5b 7b 72 00 45 31 ff 44 89 f8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 16 99 1a 0a cc e8 40 7b 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 [ 88.452921][ T5841] RSP: 0018:ffffc9000433f5c8 EFLAGS: 00010293 [ 88.459090][ T5841] RAX: ffffffff814de090 RBX: 0000000000000002 RCX: ffff88802a735a00 [ 88.467169][ T5841] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000002 [ 88.475269][ T5841] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff81463863 [ 88.483346][ T5841] R10: dffffc0000000000 R11: fffffbfff1f4201f R12: 0000000000000002 [ 88.491405][ T5841] R13: dffffc0000000000 R14: ffff888030df4600 R15: ffff888031a682d8 [ 88.499641][ T5841] FS: 0000555566bb6380(0000) GS:ffff888125c55000(0000) knlGS:0000000000000000 [ 88.508660][ T5841] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.515312][ T5841] CR2: 0000200000002000 CR3: 0000000075360000 CR4: 00000000003526f0 [ 88.523304][ T5841] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 88.531363][ T5841] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 88.539394][ T5841] Call Trace: [ 88.542694][ T5841] [ 88.545729][ T5841] vcpu_run+0x76f/0x6f70 [ 88.550087][ T5841] ? __pfx_vcpu_run+0x10/0x10 [ 88.554870][ T5841] ? kvm_arch_vcpu_ioctl_run+0x1f3/0x1940 [ 88.560642][ T5841] ? rcu_is_watching+0x15/0xb0 [ 88.565494][ T5841] kvm_arch_vcpu_ioctl_run+0xfc9/0x1940 [ 88.571067][ T5841] ? kvm_arch_vcpu_ioctl_run+0x1f3/0x1940 [ 88.576850][ T5841] ? __pfx_kvm_arch_vcpu_ioctl_run+0x10/0x10 [ 88.582883][ T5841] ? __lock_acquire+0xab9/0xd20 [ 88.587872][ T5841] kvm_vcpu_ioctl+0x95c/0xe90 [ 88.592582][ T5841] ? __pfx_kvm_vcpu_ioctl+0x10/0x10 [ 88.597881][ T5841] ? __pfx_ptrace_notify+0x10/0x10 [ 88.603037][ T5841] ? bpf_lsm_file_ioctl+0x9/0x20 [ 88.608074][ T5841] ? __pfx_kvm_vcpu_ioctl+0x10/0x10 [ 88.613304][ T5841] __se_sys_ioctl+0xfc/0x170 [ 88.617977][ T5841] do_syscall_64+0xfa/0x3b0 [ 88.622545][ T5841] ? lockdep_hardirqs_on+0x9c/0x150 [ 88.627858][ T5841] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.634001][ T5841] ? clear_bhb_loop+0x60/0xb0 [ 88.638706][ T5841] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.644692][ T5841] RIP: 0033:0x7fc83ec5e2f9 [ 88.649148][ T5841] 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 [ 88.668853][ T5841] RSP: 002b:00007fff37b1fa98 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 88.677362][ T5841] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fc83ec5e2f9 [ 88.685430][ T5841] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 88.693441][ T5841] RBP: 0000200000bfe000 R08: 0000000000000000 R09: 0000000000000000 [ 88.701482][ T5841] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff37b1fac0 [ 88.709562][ T5841] R13: 0000200000bff000 R14: 0000000000000004 R15: 0000000000000001 [ 88.717619][ T5841] [ 88.720665][ T5841] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 88.727961][ T5841] CPU: 0 UID: 0 PID: 5841 Comm: syz-executor279 Not tainted 6.15.0-syzkaller-12058-g64980441d269 #0 PREEMPT(full) [ 88.740034][ T5841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 88.750096][ T5841] Call Trace: [ 88.753386][ T5841] [ 88.756322][ T5841] dump_stack_lvl+0x99/0x250 [ 88.760928][ T5841] ? __asan_memcpy+0x40/0x70 [ 88.765534][ T5841] ? __pfx_dump_stack_lvl+0x10/0x10 [ 88.770751][ T5841] ? __pfx__printk+0x10/0x10 [ 88.775359][ T5841] panic+0x2db/0x790 [ 88.779277][ T5841] ? __pfx_panic+0x10/0x10 [ 88.783714][ T5841] ? show_trace_log_lvl+0x4fb/0x550 [ 88.788969][ T5841] __warn+0x31b/0x4b0 [ 88.792966][ T5841] ? kvm_apic_accept_events+0x341/0x490 [ 88.798526][ T5841] ? kvm_apic_accept_events+0x341/0x490 [ 88.804091][ T5841] report_bug+0x2be/0x4f0 [ 88.808434][ T5841] ? kvm_apic_accept_events+0x341/0x490 [ 88.813997][ T5841] ? kvm_apic_accept_events+0x341/0x490 [ 88.819573][ T5841] ? kvm_apic_accept_events+0x343/0x490 [ 88.825141][ T5841] handle_bug+0x84/0x160 [ 88.829410][ T5841] exc_invalid_op+0x1a/0x50 [ 88.833939][ T5841] asm_exc_invalid_op+0x1a/0x20 [ 88.838823][ T5841] RIP: 0010:kvm_apic_accept_events+0x341/0x490 [ 88.845004][ T5841] Code: eb 0c e8 62 7b 72 00 eb 05 e8 5b 7b 72 00 45 31 ff 44 89 f8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 16 99 1a 0a cc e8 40 7b 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 [ 88.864635][ T5841] RSP: 0018:ffffc9000433f5c8 EFLAGS: 00010293 [ 88.870750][ T5841] RAX: ffffffff814de090 RBX: 0000000000000002 RCX: ffff88802a735a00 [ 88.878837][ T5841] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000002 [ 88.886823][ T5841] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff81463863 [ 88.894807][ T5841] R10: dffffc0000000000 R11: fffffbfff1f4201f R12: 0000000000000002 [ 88.902803][ T5841] R13: dffffc0000000000 R14: ffff888030df4600 R15: ffff888031a682d8 [ 88.910798][ T5841] ? kvm_arch_vcpu_ioctl_run+0x1f3/0x1940 [ 88.916561][ T5841] ? kvm_apic_accept_events+0x340/0x490 [ 88.922154][ T5841] ? kvm_apic_accept_events+0x340/0x490 [ 88.927730][ T5841] vcpu_run+0x76f/0x6f70 [ 88.932076][ T5841] ? __pfx_vcpu_run+0x10/0x10 [ 88.936799][ T5841] ? kvm_arch_vcpu_ioctl_run+0x1f3/0x1940 [ 88.942563][ T5841] ? rcu_is_watching+0x15/0xb0 [ 88.947364][ T5841] kvm_arch_vcpu_ioctl_run+0xfc9/0x1940 [ 88.952985][ T5841] ? kvm_arch_vcpu_ioctl_run+0x1f3/0x1940 [ 88.958737][ T5841] ? __pfx_kvm_arch_vcpu_ioctl_run+0x10/0x10 [ 88.964769][ T5841] ? __lock_acquire+0xab9/0xd20 [ 88.969674][ T5841] kvm_vcpu_ioctl+0x95c/0xe90 [ 88.974388][ T5841] ? __pfx_kvm_vcpu_ioctl+0x10/0x10 [ 88.979627][ T5841] ? __pfx_ptrace_notify+0x10/0x10 [ 88.984767][ T5841] ? bpf_lsm_file_ioctl+0x9/0x20 [ 88.989738][ T5841] ? __pfx_kvm_vcpu_ioctl+0x10/0x10 [ 88.994952][ T5841] __se_sys_ioctl+0xfc/0x170 [ 88.999569][ T5841] do_syscall_64+0xfa/0x3b0 [ 89.004096][ T5841] ? lockdep_hardirqs_on+0x9c/0x150 [ 89.009312][ T5841] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.015394][ T5841] ? clear_bhb_loop+0x60/0xb0 [ 89.020097][ T5841] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.026009][ T5841] RIP: 0033:0x7fc83ec5e2f9 [ 89.030437][ T5841] 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 [ 89.050067][ T5841] RSP: 002b:00007fff37b1fa98 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 89.058504][ T5841] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fc83ec5e2f9 [ 89.066495][ T5841] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 89.074567][ T5841] RBP: 0000200000bfe000 R08: 0000000000000000 R09: 0000000000000000 [ 89.082550][ T5841] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff37b1fac0 [ 89.090552][ T5841] R13: 0000200000bff000 R14: 0000000000000004 R15: 0000000000000001 [ 89.098556][ T5841] [ 89.101953][ T5841] Kernel Offset: disabled [ 89.106314][ T5841] Rebooting in 86400 seconds..