./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor482060910 <...> DUID 00:04:83:15:3d:b3:f9:44:11:d6:e6:e1:d9:1f:49:4d:f4:66 forked to background, child pid 3209 [ 32.784920][ T3210] 8021q: adding VLAN 0 to HW filter on device bond0 [ 32.796583][ T3210] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.16' (ECDSA) to the list of known hosts. execve("./syz-executor482060910", ["./syz-executor482060910"], 0x7ffed8c3b060 /* 10 vars */) = 0 brk(NULL) = 0x5555565ef000 brk(0x5555565efc40) = 0x5555565efc40 arch_prctl(ARCH_SET_FS, 0x5555565ef300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor482060910", 4096) = 27 brk(0x555556610c40) = 0x555556610c40 brk(0x555556611000) = 0x555556611000 mprotect(0x7f74296bb000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 openat(AT_FDCWD, "/dev/kvm", O_RDONLY) = 3 ioctl(3, KVM_CREATE_VM, 0) = 4 ioctl(4, KVM_SET_USER_MEMORY_REGION, {slot=0, flags=0, guest_phys_addr=0, memory_size=536879104, userspace_addr=0x20000000}) = 0 ioctl(4, KVM_CREATE_VCPU, 0) = 5 ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=0, flags=0, guest_phys_addr=0, memory_size=4096, userspace_addr=0x20000000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=1, flags=0, guest_phys_addr=0x1000, memory_size=4096, userspace_addr=0x20001000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=2, flags=0, guest_phys_addr=0x2000, memory_size=4096, userspace_addr=0x20002000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=3, flags=0, guest_phys_addr=0x3000, memory_size=4096, userspace_addr=0x20003000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=4, flags=0, guest_phys_addr=0x4000, memory_size=4096, userspace_addr=0x20004000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=5, flags=0, guest_phys_addr=0x5000, memory_size=4096, userspace_addr=0x20005000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=6, flags=0, guest_phys_addr=0x6000, memory_size=4096, userspace_addr=0x20006000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=7, flags=0, guest_phys_addr=0x7000, memory_size=4096, userspace_addr=0x20007000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=8, flags=0, guest_phys_addr=0x8000, memory_size=4096, userspace_addr=0x20008000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=9, flags=0, guest_phys_addr=0x9000, memory_size=4096, userspace_addr=0x20009000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=10, flags=0, guest_phys_addr=0xfec00000, memory_size=4096, userspace_addr=0x2000a000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=11, flags=0, guest_phys_addr=0xb000, memory_size=4096, userspace_addr=0x2000b000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=12, flags=0, guest_phys_addr=0xc000, memory_size=4096, userspace_addr=0x2000c000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=13, flags=0, guest_phys_addr=0xd000, memory_size=4096, userspace_addr=0x2000d000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=14, flags=0, guest_phys_addr=0xe000, memory_size=4096, userspace_addr=0x2000e000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=15, flags=0, guest_phys_addr=0xf000, memory_size=4096, userspace_addr=0x2000f000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=16, flags=0, guest_phys_addr=0x10000, memory_size=4096, userspace_addr=0x20010000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=17, flags=0, guest_phys_addr=0x11000, memory_size=4096, userspace_addr=0x20011000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=18, flags=0, guest_phys_addr=0x12000, memory_size=4096, userspace_addr=0x20012000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=19, flags=0, guest_phys_addr=0x13000, memory_size=4096, userspace_addr=0x20013000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=20, flags=0, guest_phys_addr=0x14000, memory_size=4096, userspace_addr=0x20014000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=21, flags=0, guest_phys_addr=0x15000, memory_size=4096, userspace_addr=0x20015000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=22, flags=0, guest_phys_addr=0x16000, memory_size=4096, userspace_addr=0x20016000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=23, flags=0, guest_phys_addr=0x17000, memory_size=4096, userspace_addr=0x20017000}) = -1 EBADF (Bad file descriptor) ioctl(-1, KVM_SET_USER_MEMORY_REGION, {slot=65537, flags=0, guest_phys_addr=0x30000, memory_size=65536, userspace_addr=0x20000000}) = -1 EBADF (Bad file descriptor) 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 openat(AT_FDCWD, "/dev/kvm", O_RDWR) = 6 ioctl(6, KVM_GET_SUPPORTED_CPUID, {nent=33, entries=[...]}) = 0 ioctl(5, KVM_SET_CPUID2, {nent=33, entries=[...]}) = 0 close(6) = 0 ioctl(5, KVM_SET_MSRS, 0x7ffc52c96ea0) = 5 ioctl(5, KVM_SET_SREGS, {cs={base=0, limit=1048575, selector=48, type=11, present=1, dpl=0, db=1, s=1, l=0, g=0, avl=0}, ...}) = 0 ioctl(5, KVM_SET_REGS, {rax=0, ..., rsp=0xf80, rbp=0, ..., rip=0, rflags=0x2}) = 0 modify_ldt(17, {entry_number=1471, base_addr=0x20000800, limit=00000000, seg_32bit=0, contents=0, read_exec_only=0, limit_in_pages=0, seg_not_present=0, useable=0, lm=0}, 16) = 0 syzkaller login: [ 54.816712][ T3634] 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. [ 54.870328][ T3634] ------------[ cut here ]------------ [ 54.876474][ T3634] WARNING: CPU: 0 PID: 3634 at arch/x86/kvm/vmx/vmx.c:5130 handle_exception_nmi+0xd1a/0xe40 [ 54.886965][ T3634] Modules linked in: [ 54.890857][ T3634] CPU: 0 PID: 3634 Comm: syz-executor482 Not tainted 6.1.0-rc8-syzkaller-00164-g4cee37b3a4e6 #0 [ 54.901475][ T3634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 54.911695][ T3634] RIP: 0010:handle_exception_nmi+0xd1a/0xe40 [ 54.917839][ T3634] Code: ef e8 fa e9 fd ff 31 ff 89 c3 89 c6 e8 5f ea 5c 00 85 db 0f 85 3b ff ff ff e8 a2 ed 5c 00 0f 0b e9 2f ff ff ff e8 96 ed 5c 00 <0f> 0b e9 60 fb ff ff 41 bd 00 40 00 00 e9 00 ff ff ff 48 8b 7c 24 [ 54.937633][ T3634] RSP: 0018:ffffc90003a7fac8 EFLAGS: 00010293 [ 54.943861][ T3634] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 54.951850][ T3634] RDX: ffff8880245fba80 RSI: ffffffff8123306a RDI: 0000000000000001 [ 54.960011][ T3634] RBP: ffff888020708000 R08: 0000000000000001 R09: 0000000000000000 [ 54.968125][ T3634] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000020c2c748 [ 54.976230][ T3634] R13: 0000000000000000 R14: 0000000080000300 R15: ffff88807d4b0000 [ 54.984360][ T3634] FS: 00005555565ef300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 54.993483][ T3634] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.000086][ T3634] CR2: 0000560d1a2662b8 CR3: 000000007819c000 CR4: 00000000003526e0 [ 55.008213][ T3634] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.016313][ T3634] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.024452][ T3634] Call Trace: [ 55.027867][ T3634] [ 55.030817][ T3634] ? vmx_guest_inject_ac+0x170/0x170 [ 55.036323][ T3634] vmx_handle_exit+0x48c/0x18d0 [ 55.041234][ T3634] vcpu_enter_guest+0x373e/0x5a10 [ 55.046478][ T3634] ? kvm_check_nested_events+0xf0/0xf0 [ 55.051976][ T3634] ? __local_bh_enable_ip+0xa4/0x130 [ 55.057427][ T3634] ? kvm_arch_vcpu_ioctl_run+0xa62/0x2b40 [ 55.063311][ T3634] kvm_arch_vcpu_ioctl_run+0xa62/0x2b40 [ 55.068897][ T3634] kvm_vcpu_ioctl+0x574/0xfc0 [ 55.073734][ T3634] ? kvm_release_pfn_dirty+0x220/0x220 [ 55.079237][ T3634] ? find_held_lock+0x2d/0x110 [ 55.084174][ T3634] ? ptrace_notify+0xfe/0x140 [ 55.088909][ T3634] ? lock_downgrade+0x6e0/0x6e0 [ 55.094011][ T3634] ? bpf_lsm_file_ioctl+0x9/0x10 [ 55.098970][ T3634] ? kvm_release_pfn_dirty+0x220/0x220 [ 55.104607][ T3634] __x64_sys_ioctl+0x197/0x210 [ 55.109396][ T3634] do_syscall_64+0x39/0xb0 [ 55.113989][ T3634] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 55.119995][ T3634] RIP: 0033:0x7f742964edb9 [ 55.124561][ T3634] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 55.144505][ T3634] RSP: 002b:00007ffc52c989f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 55.153023][ T3634] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f742964edb9 [ 55.161139][ T3634] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 55.169379][ T3634] RBP: 00007f7429612810 R08: 0000000000000000 R09: 0000000000000000 [ 55.177511][ T3634] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f74296128a0 [ 55.185621][ T3634] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 55.193692][ T3634] [ 55.196731][ T3634] Kernel panic - not syncing: panic_on_warn set ... [ 55.203303][ T3634] CPU: 0 PID: 3634 Comm: syz-executor482 Not tainted 6.1.0-rc8-syzkaller-00164-g4cee37b3a4e6 #0 [ 55.213706][ T3634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 55.223750][ T3634] Call Trace: [ 55.227017][ T3634] [ 55.229936][ T3634] dump_stack_lvl+0xd1/0x138 [ 55.234530][ T3634] panic+0x2cc/0x626 [ 55.238421][ T3634] ? panic_print_sys_info.part.0+0x110/0x110 [ 55.244402][ T3634] ? __warn.cold+0x24b/0x350 [ 55.249006][ T3634] ? handle_exception_nmi+0xd1a/0xe40 [ 55.254388][ T3634] __warn.cold+0x25c/0x350 [ 55.258815][ T3634] ? handle_exception_nmi+0xd1a/0xe40 [ 55.264201][ T3634] report_bug+0x1c0/0x210 [ 55.268565][ T3634] handle_bug+0x3c/0x70 [ 55.272756][ T3634] exc_invalid_op+0x18/0x50 [ 55.277287][ T3634] asm_exc_invalid_op+0x1a/0x20 [ 55.282158][ T3634] RIP: 0010:handle_exception_nmi+0xd1a/0xe40 [ 55.288164][ T3634] Code: ef e8 fa e9 fd ff 31 ff 89 c3 89 c6 e8 5f ea 5c 00 85 db 0f 85 3b ff ff ff e8 a2 ed 5c 00 0f 0b e9 2f ff ff ff e8 96 ed 5c 00 <0f> 0b e9 60 fb ff ff 41 bd 00 40 00 00 e9 00 ff ff ff 48 8b 7c 24 [ 55.307799][ T3634] RSP: 0018:ffffc90003a7fac8 EFLAGS: 00010293 [ 55.313882][ T3634] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 55.321864][ T3634] RDX: ffff8880245fba80 RSI: ffffffff8123306a RDI: 0000000000000001 [ 55.329845][ T3634] RBP: ffff888020708000 R08: 0000000000000001 R09: 0000000000000000 [ 55.337827][ T3634] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000020c2c748 [ 55.345803][ T3634] R13: 0000000000000000 R14: 0000000080000300 R15: ffff88807d4b0000 [ 55.353793][ T3634] ? handle_exception_nmi+0xd1a/0xe40 [ 55.359210][ T3634] ? handle_exception_nmi+0xd1a/0xe40 [ 55.364616][ T3634] ? vmx_guest_inject_ac+0x170/0x170 [ 55.369924][ T3634] vmx_handle_exit+0x48c/0x18d0 [ 55.374803][ T3634] vcpu_enter_guest+0x373e/0x5a10 [ 55.379880][ T3634] ? kvm_check_nested_events+0xf0/0xf0 [ 55.385376][ T3634] ? __local_bh_enable_ip+0xa4/0x130 [ 55.390687][ T3634] ? kvm_arch_vcpu_ioctl_run+0xa62/0x2b40 [ 55.396440][ T3634] kvm_arch_vcpu_ioctl_run+0xa62/0x2b40 [ 55.402047][ T3634] kvm_vcpu_ioctl+0x574/0xfc0 [ 55.406759][ T3634] ? kvm_release_pfn_dirty+0x220/0x220 [ 55.412255][ T3634] ? find_held_lock+0x2d/0x110 [ 55.417052][ T3634] ? ptrace_notify+0xfe/0x140 [ 55.421755][ T3634] ? lock_downgrade+0x6e0/0x6e0 [ 55.426643][ T3634] ? bpf_lsm_file_ioctl+0x9/0x10 [ 55.431591][ T3634] ? kvm_release_pfn_dirty+0x220/0x220 [ 55.437080][ T3634] __x64_sys_ioctl+0x197/0x210 [ 55.441861][ T3634] do_syscall_64+0x39/0xb0 [ 55.446298][ T3634] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 55.452208][ T3634] RIP: 0033:0x7f742964edb9 [ 55.456640][ T3634] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 55.476257][ T3634] RSP: 002b:00007ffc52c989f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 55.485029][ T3634] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f742964edb9 [ 55.493007][ T3634] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 55.500986][ T3634] RBP: 00007f7429612810 R08: 0000000000000000 R09: 0000000000000000 [ 55.508965][ T3634] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f74296128a0 [ 55.516942][ T3634] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 55.524935][ T3634] [ 55.528121][ T3634] Kernel Offset: disabled [ 55.532516][ T3634] Rebooting in 86400 seconds..