./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4015456931 <...> Warning: Permanently added '10.128.0.46' (ED25519) to the list of known hosts. execve("./syz-executor4015456931", ["./syz-executor4015456931"], 0x7fff8d6fc720 /* 10 vars */) = 0 brk(NULL) = 0x555565e72000 brk(0x555565e72d00) = 0x555565e72d00 arch_prctl(ARCH_SET_FS, 0x555565e72380) = 0 set_tid_address(0x555565e72650) = 5835 set_robust_list(0x555565e72660, 24) = 0 rseq(0x555565e72ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4015456931", 4096) = 28 getrandom("\xba\x93\x5e\xc5\x01\x1c\xc1\x39", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555565e72d00 brk(0x555565e93d00) = 0x555565e93d00 brk(0x555565e94000) = 0x555565e94000 mprotect(0x7f2a118b9000, 16384, PROT_READ) = 0 mmap(0x3ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3ffffffff000 mmap(0x400000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400000000000 mmap(0x400001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400001000000 write(1, "executing program\n", 18executing program ) = 18 seccomp(SECCOMP_SET_MODE_FILTER, 0, {len=1, filter=0x400000000000}) = 0 close_range(0, 4294967295, 0) = 0 openat(AT_FDCWD, "/dev/kvm", O_RDONLY) = 0 ioctl(0, KVM_CREATE_VM, 0) = 1 openat(AT_FDCWD, "/dev/ocfs2_control", O_RDONLY|O_LARGEFILE) = 2 ioctl(1, KVM_CREATE_VCPU, 2) = 3 [ 82.592772][ T5835] 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. [ 82.631735][ T5835] ------------[ cut here ]------------ [ 82.637455][ T5835] WARNING: CPU: 1 PID: 5835 at arch/x86/kvm/../../../virt/kvm/pfncache.c:267 __kvm_gpc_refresh+0x11ff/0x1380 [ 82.649067][ T5835] Modules linked in: [ 82.653095][ T5835] CPU: 1 UID: 0 PID: 5835 Comm: syz-executor401 Not tainted 6.14.0-rc3-next-20250218-syzkaller #0 [ 82.663755][ T5835] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 82.673883][ T5835] RIP: 0010:__kvm_gpc_refresh+0x11ff/0x1380 [ 82.679883][ T5835] Code: c6 05 69 55 f0 0e 01 48 c7 c7 89 2e 2b 8e be 24 04 00 00 48 c7 c2 a0 eb 21 8c e8 3c 36 66 00 e9 78 f1 ff ff e8 62 c0 8a 00 90 <0f> 0b 90 41 be ea ff ff ff e9 51 fe ff ff e8 4e c0 8a 00 90 0f 0b [ 82.699597][ T5835] RSP: 0018:ffffc9000406f140 EFLAGS: 00010293 [ 82.705747][ T5835] RAX: ffffffff81373e7e RBX: ffffffffffffff01 RCX: ffff888035118000 [ 82.713762][ T5835] RDX: 0000000000000000 RSI: ffff888000000000 RDI: ffff887fffffffff [ 82.721853][ T5835] RBP: ffffc9000406f2d0 R08: ffffffff81372d49 R09: 1ffffffff207b48e [ 82.729870][ T5835] R10: dffffc0000000000 R11: fffffbfff207b48f R12: ffff887fffffffff [ 82.737881][ T5835] R13: dffffc0000000000 R14: ffff888000000000 R15: ffffc900030f73f8 [ 82.745897][ T5835] FS: 0000555565e72380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 82.754870][ T5835] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.761464][ T5835] CR2: 00005654f4befc30 CR3: 000000007ecca000 CR4: 00000000003526f0 [ 82.769507][ T5835] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.777507][ T5835] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.785517][ T5835] Call Trace: [ 82.788817][ T5835] [ 82.791743][ T5835] ? __warn+0x165/0x4d0 [ 82.795944][ T5835] ? __kvm_gpc_refresh+0x11ff/0x1380 [ 82.801253][ T5835] ? report_bug+0x2b3/0x500 [ 82.805817][ T5835] ? __kvm_gpc_refresh+0x11ff/0x1380 [ 82.811121][ T5835] ? __kvm_gpc_refresh+0x11ff/0x1380 [ 82.816461][ T5835] ? __kvm_gpc_refresh+0x1201/0x1380 [ 82.821759][ T5835] ? handle_bug+0xde/0x120 [ 82.826247][ T5835] ? exc_invalid_op+0x1a/0x50 [ 82.830948][ T5835] ? asm_exc_invalid_op+0x1a/0x20 [ 82.836056][ T5835] ? __kvm_gpc_refresh+0xc9/0x1380 [ 82.841189][ T5835] ? __kvm_gpc_refresh+0x11fe/0x1380 [ 82.846599][ T5835] ? __kvm_gpc_refresh+0x11ff/0x1380 [ 82.851936][ T5835] ? kvm_gpc_refresh+0x32/0x110 [ 82.856843][ T5835] ? __pfx___kvm_gpc_refresh+0x10/0x10 [ 82.862331][ T5835] ? kvm_xen_set_evtchn_fast+0x3c4/0xa00 [ 82.868020][ T5835] kvm_gpc_refresh+0xc6/0x110 [ 82.872711][ T5835] ? kvm_xen_set_evtchn+0x138/0x230 [ 82.877961][ T5835] kvm_xen_set_evtchn+0x165/0x230 [ 82.883004][ T5835] kvm_xen_hvm_evtchn_send+0x1fa/0x370 [ 82.888518][ T5835] ? __pfx_kvm_xen_hvm_evtchn_send+0x10/0x10 [ 82.894547][ T5835] kvm_arch_vm_ioctl+0xe4d/0x17c0 [ 82.899568][ T5835] ? __pfx_kvm_arch_vm_ioctl+0x10/0x10 [ 82.905071][ T5835] ? __lock_acquire+0x1397/0x2100 [ 82.910141][ T5835] ? __pfx_lock_acquire+0x10/0x10 [ 82.915209][ T5835] ? is_bpf_text_address+0x26/0x2a0 [ 82.920419][ T5835] ? __pfx_lock_release+0x10/0x10 [ 82.925486][ T5835] ? deref_stack_reg+0x17c/0x210 [ 82.930440][ T5835] ? unwind_next_frame+0xb8/0x2380 [ 82.935645][ T5835] ? is_bpf_text_address+0x285/0x2a0 [ 82.940947][ T5835] ? is_bpf_text_address+0x26/0x2a0 [ 82.946199][ T5835] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 82.952368][ T5835] ? kernel_text_address+0xa7/0xe0 [ 82.957552][ T5835] ? __kernel_text_address+0xd/0x40 [ 82.962771][ T5835] ? unwind_get_return_address+0x4d/0x90 [ 82.968464][ T5835] ? arch_stack_walk+0xfd/0x150 [ 82.973366][ T5835] ? stack_trace_save+0x118/0x1d0 [ 82.978451][ T5835] ? __pfx_stack_trace_save+0x10/0x10 [ 82.983842][ T5835] ? stack_depot_save_flags+0x37/0x940 [ 82.989364][ T5835] ? kasan_save_track+0x51/0x80 [ 82.994222][ T5835] ? kasan_save_track+0x3f/0x80 [ 82.999156][ T5835] ? kasan_save_free_info+0x40/0x50 [ 83.004391][ T5835] ? __kasan_slab_free+0x59/0x70 [ 83.009334][ T5835] ? kfree+0x196/0x430 [ 83.013393][ T5835] ? tomoyo_path_number_perm+0x5dd/0x770 [ 83.019099][ T5835] ? security_file_ioctl+0xc6/0x2a0 [ 83.024360][ T5835] ? __se_sys_ioctl+0x46/0x160 [ 83.029131][ T5835] ? do_syscall_64+0xf3/0x230 [ 83.033797][ T5835] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 83.039906][ T5835] ? do_vfs_ioctl+0xef6/0x2750 [ 83.044710][ T5835] kvm_vm_ioctl+0x876/0xd70 [ 83.049204][ T5835] ? mark_lock+0x9a/0x360 [ 83.053562][ T5835] ? __pfx_kvm_vm_ioctl+0x10/0x10 [ 83.058657][ T5835] ? tomoyo_path_number_perm+0x209/0x770 [ 83.064363][ T5835] ? __pfx_lock_release+0x10/0x10 [ 83.069487][ T5835] ? tomoyo_path_number_perm+0x5dd/0x770 [ 83.075178][ T5835] ? tomoyo_path_number_perm+0x5dd/0x770 [ 83.080828][ T5835] ? tomoyo_path_number_perm+0x65d/0x770 [ 83.086533][ T5835] ? tomoyo_path_number_perm+0x209/0x770 [ 83.092188][ T5835] ? __pfx_tomoyo_path_number_perm+0x10/0x10 [ 83.098241][ T5835] ? __pfx___seccomp_filter+0x10/0x10 [ 83.103689][ T5835] ? __pfx_kvm_vm_ioctl+0x10/0x10 [ 83.108773][ T5835] __se_sys_ioctl+0xf1/0x160 [ 83.113378][ T5835] do_syscall_64+0xf3/0x230 [ 83.117940][ T5835] ? clear_bhb_loop+0x45/0xa0 [ 83.122633][ T5835] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 83.128705][ T5835] RIP: 0033:0x7f2a11846429 [ 83.133151][ T5835] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 83.152883][ T5835] RSP: 002b:00007fff5d46cb48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 83.161351][ T5835] RAX: ffffffffffffffda RBX: 0000400000000000 RCX: 00007f2a11846429 [ 83.169364][ T5835] RDX: 0000400000000180 RSI: 00000000400caed0 RDI: 0000000000000001 [ 83.177376][ T5835] RBP: 00007f2a118b9610 R08: 00007fff5d46cd18 R09: 00007fff5d46cd18 [ 83.185383][ T5835] R10: 00007fff5d46cd18 R11: 0000000000000246 R12: 0000000000000001 [ 83.193364][ T5835] R13: 00007fff5d46cd08 R14: 0000000000000001 R15: 0000000000000001 [ 83.201405][ T5835] [ 83.204465][ T5835] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 83.211734][ T5835] CPU: 1 UID: 0 PID: 5835 Comm: syz-executor401 Not tainted 6.14.0-rc3-next-20250218-syzkaller #0 [ 83.222304][ T5835] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 83.232360][ T5835] Call Trace: [ 83.235635][ T5835] [ 83.238558][ T5835] dump_stack_lvl+0x241/0x360 [ 83.243236][ T5835] ? __pfx_dump_stack_lvl+0x10/0x10 [ 83.248425][ T5835] ? __pfx__printk+0x10/0x10 [ 83.253013][ T5835] ? vscnprintf+0x5d/0x90 [ 83.257377][ T5835] panic+0x349/0x880 [ 83.261270][ T5835] ? __warn+0x174/0x4d0 [ 83.265419][ T5835] ? __pfx_panic+0x10/0x10 [ 83.269849][ T5835] __warn+0x344/0x4d0 [ 83.273819][ T5835] ? __kvm_gpc_refresh+0x11ff/0x1380 [ 83.279107][ T5835] report_bug+0x2b3/0x500 [ 83.283434][ T5835] ? __kvm_gpc_refresh+0x11ff/0x1380 [ 83.288714][ T5835] ? __kvm_gpc_refresh+0x11ff/0x1380 [ 83.293994][ T5835] ? __kvm_gpc_refresh+0x1201/0x1380 [ 83.299275][ T5835] handle_bug+0xde/0x120 [ 83.303515][ T5835] exc_invalid_op+0x1a/0x50 [ 83.308014][ T5835] asm_exc_invalid_op+0x1a/0x20 [ 83.312863][ T5835] RIP: 0010:__kvm_gpc_refresh+0x11ff/0x1380 [ 83.318764][ T5835] Code: c6 05 69 55 f0 0e 01 48 c7 c7 89 2e 2b 8e be 24 04 00 00 48 c7 c2 a0 eb 21 8c e8 3c 36 66 00 e9 78 f1 ff ff e8 62 c0 8a 00 90 <0f> 0b 90 41 be ea ff ff ff e9 51 fe ff ff e8 4e c0 8a 00 90 0f 0b [ 83.338361][ T5835] RSP: 0018:ffffc9000406f140 EFLAGS: 00010293 [ 83.344426][ T5835] RAX: ffffffff81373e7e RBX: ffffffffffffff01 RCX: ffff888035118000 [ 83.352390][ T5835] RDX: 0000000000000000 RSI: ffff888000000000 RDI: ffff887fffffffff [ 83.360356][ T5835] RBP: ffffc9000406f2d0 R08: ffffffff81372d49 R09: 1ffffffff207b48e [ 83.368317][ T5835] R10: dffffc0000000000 R11: fffffbfff207b48f R12: ffff887fffffffff [ 83.376282][ T5835] R13: dffffc0000000000 R14: ffff888000000000 R15: ffffc900030f73f8 [ 83.384254][ T5835] ? __kvm_gpc_refresh+0xc9/0x1380 [ 83.389370][ T5835] ? __kvm_gpc_refresh+0x11fe/0x1380 [ 83.394674][ T5835] ? kvm_gpc_refresh+0x32/0x110 [ 83.399522][ T5835] ? __pfx___kvm_gpc_refresh+0x10/0x10 [ 83.404988][ T5835] ? kvm_xen_set_evtchn_fast+0x3c4/0xa00 [ 83.410624][ T5835] kvm_gpc_refresh+0xc6/0x110 [ 83.415299][ T5835] ? kvm_xen_set_evtchn+0x138/0x230 [ 83.420493][ T5835] kvm_xen_set_evtchn+0x165/0x230 [ 83.425519][ T5835] kvm_xen_hvm_evtchn_send+0x1fa/0x370 [ 83.430977][ T5835] ? __pfx_kvm_xen_hvm_evtchn_send+0x10/0x10 [ 83.436961][ T5835] kvm_arch_vm_ioctl+0xe4d/0x17c0 [ 83.441984][ T5835] ? __pfx_kvm_arch_vm_ioctl+0x10/0x10 [ 83.447455][ T5835] ? __lock_acquire+0x1397/0x2100 [ 83.452509][ T5835] ? __pfx_lock_acquire+0x10/0x10 [ 83.457528][ T5835] ? is_bpf_text_address+0x26/0x2a0 [ 83.462718][ T5835] ? __pfx_lock_release+0x10/0x10 [ 83.467745][ T5835] ? deref_stack_reg+0x17c/0x210 [ 83.472684][ T5835] ? unwind_next_frame+0xb8/0x2380 [ 83.477794][ T5835] ? is_bpf_text_address+0x285/0x2a0 [ 83.483065][ T5835] ? is_bpf_text_address+0x26/0x2a0 [ 83.488252][ T5835] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 83.494401][ T5835] ? kernel_text_address+0xa7/0xe0 [ 83.499507][ T5835] ? __kernel_text_address+0xd/0x40 [ 83.504695][ T5835] ? unwind_get_return_address+0x4d/0x90 [ 83.510320][ T5835] ? arch_stack_walk+0xfd/0x150 [ 83.515173][ T5835] ? stack_trace_save+0x118/0x1d0 [ 83.520190][ T5835] ? __pfx_stack_trace_save+0x10/0x10 [ 83.525555][ T5835] ? stack_depot_save_flags+0x37/0x940 [ 83.531014][ T5835] ? kasan_save_track+0x51/0x80 [ 83.535860][ T5835] ? kasan_save_track+0x3f/0x80 [ 83.540700][ T5835] ? kasan_save_free_info+0x40/0x50 [ 83.545886][ T5835] ? __kasan_slab_free+0x59/0x70 [ 83.550813][ T5835] ? kfree+0x196/0x430 [ 83.554875][ T5835] ? tomoyo_path_number_perm+0x5dd/0x770 [ 83.560497][ T5835] ? security_file_ioctl+0xc6/0x2a0 [ 83.565683][ T5835] ? __se_sys_ioctl+0x46/0x160 [ 83.570434][ T5835] ? do_syscall_64+0xf3/0x230 [ 83.575104][ T5835] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 83.581166][ T5835] ? do_vfs_ioctl+0xef6/0x2750 [ 83.585930][ T5835] kvm_vm_ioctl+0x876/0xd70 [ 83.590429][ T5835] ? mark_lock+0x9a/0x360 [ 83.594752][ T5835] ? __pfx_kvm_vm_ioctl+0x10/0x10 [ 83.599784][ T5835] ? tomoyo_path_number_perm+0x209/0x770 [ 83.605408][ T5835] ? __pfx_lock_release+0x10/0x10 [ 83.610435][ T5835] ? tomoyo_path_number_perm+0x5dd/0x770 [ 83.616065][ T5835] ? tomoyo_path_number_perm+0x5dd/0x770 [ 83.621693][ T5835] ? tomoyo_path_number_perm+0x65d/0x770 [ 83.627320][ T5835] ? tomoyo_path_number_perm+0x209/0x770 [ 83.632947][ T5835] ? __pfx_tomoyo_path_number_perm+0x10/0x10 [ 83.638936][ T5835] ? __pfx___seccomp_filter+0x10/0x10 [ 83.644344][ T5835] ? __pfx_kvm_vm_ioctl+0x10/0x10 [ 83.649363][ T5835] __se_sys_ioctl+0xf1/0x160 [ 83.653951][ T5835] do_syscall_64+0xf3/0x230 [ 83.658451][ T5835] ? clear_bhb_loop+0x45/0xa0 [ 83.663123][ T5835] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 83.669008][ T5835] RIP: 0033:0x7f2a11846429 [ 83.673419][ T5835] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 83.693014][ T5835] RSP: 002b:00007fff5d46cb48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 83.701425][ T5835] RAX: ffffffffffffffda RBX: 0000400000000000 RCX: 00007f2a11846429 [ 83.709386][ T5835] RDX: 0000400000000180 RSI: 00000000400caed0 RDI: 0000000000000001 [ 83.717348][ T5835] RBP: 00007f2a118b9610 R08: 00007fff5d46cd18 R09: 00007fff5d46cd18 [ 83.725308][ T5835] R10: 00007fff5d46cd18 R11: 0000000000000246 R12: 0000000000000001 [ 83.733266][ T5835] R13: 00007fff5d46cd08 R14: 0000000000000001 R15: 0000000000000001 [ 83.741248][ T5835] [ 83.744533][ T5835] Kernel Offset: disabled [ 83.748849][ T5835] Rebooting in 86400 seconds..