./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3163458907
<...>
Warning: Permanently added '10.128.0.91' (ED25519) to the list of known hosts.
execve("./syz-executor3163458907", ["./syz-executor3163458907"], 0x7ffd358a76e0 /* 10 vars */) = 0
brk(NULL) = 0x555556103000
brk(0x555556103d00) = 0x555556103d00
arch_prctl(ARCH_SET_FS, 0x555556103380) = 0
set_tid_address(0x555556103650) = 353
set_robust_list(0x555556103660, 24) = 0
rseq(0x555556103ca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented)
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor3163458907", 4096) = 28
getrandom("\x9c\x2f\xb5\x9a\xb6\x01\xfa\x01", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555556103d00
brk(0x555556124d00) = 0x555556124d00
brk(0x555556125000) = 0x555556125000
mprotect(0x7f32012d3000, 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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556103650) = 354
./strace-static-x86_64: Process 354 attached
[pid 354] set_robust_list(0x555556103660, 24) = 0
[pid 354] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 354] setpgid(0, 0) = 0
[pid 354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 354] write(3, "1000", 4) = 4
[pid 354] close(3) = 0
[pid 354] openat(AT_FDCWD, "/dev/kvm", O_RDONLY) = 3
[ 20.540218][ T23] audit: type=1400 audit(1714227370.189:66): avc: denied { execmem } for pid=353 comm="syz-executor316" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[ 20.549366][ T23] audit: type=1400 audit(1714227370.199:67): avc: denied { read } for pid=354 comm="syz-executor316" name="kvm" dev="devtmpfs" ino=116 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:kvm_device_t tclass=chr_file permissive=1
[ 20.554673][ T23] audit: type=1400 audit(1714227370.199:68): avc: denied { open } for pid=354 comm="syz-executor316" path="/dev/kvm" dev="devtmpfs" ino=116 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:kvm_device_t tclass=chr_file permissive=1
[ 20.559599][ T23] audit: type=1400 audit(1714227370.209:69): avc: denied { ioctl } for pid=354 comm="syz-executor316" path="/dev/kvm" dev="devtmpfs" ino=116 ioctlcmd=0xae01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:kvm_device_t tclass=chr_file permissive=1
[pid 354] ioctl(3, KVM_CREATE_VM, 0) = 4
[pid 354] dup(4) = 5
[pid 354] ioctl(5, KVM_CREATE_VCPU, 0) = 6
[pid 354] ioctl(4, KVM_SET_USER_MEMORY_REGION, {slot=0, flags=KVM_MEM_LOG_DIRTY_PAGES|KVM_MEM_READONLY, guest_phys_addr=0, memory_size=8192, userspace_addr=0x20000000}) = 0
[ 20.559755][ T354] 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.
[ 20.615803][ T354] BUG: kernel NULL pointer dereference, address: 0000000000000086
[ 20.623418][ T354] #PF: supervisor instruction fetch in kernel mode
[ 20.629753][ T354] #PF: error_code(0x0010) - not-present page
[ 20.635573][ T354] PGD 1dc3e4067 P4D 1dc3e4067 PUD 1dc3e5067 PMD 0
[ 20.641905][ T354] Oops: 0010 [#1] PREEMPT SMP KASAN
[ 20.646950][ T354] CPU: 0 PID: 354 Comm: syz-executor316 Not tainted 5.4.268-syzkaller-00003-g2d5d8240a7cb #0
[ 20.656919][ T354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[ 20.666834][ T354] RIP: 0010:0x86
[ 20.670232][ T354] Code: Bad RIP value.
[ 20.674107][ T354] RSP: 0018:ffff8881de3ef308 EFLAGS: 00010086
[ 20.680006][ T354] RAX: ffff8881de3ef338 RBX: dffffc0000000000 RCX: ffff8881dc2c2f40
[ 20.687814][ T354] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
[ 20.695751][ T354] RBP: 0000000000000290 R08: ffffffff82315341 R09: ffffffff811c9085
[ 20.703568][ T354] R10: ffff8881dc2c2f40 R11: 0000000000000002 R12: ffffffff84600238
[ 20.711470][ T354] R13: fffffe0000000298 R14: ffff8881dbfe0000 R15: fffffe000000029b
[ 20.719304][ T354] FS: 0000555556103380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[ 20.728049][ T354] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 20.734461][ T354] CR2: 000000000000005c CR3: 00000001dbcf4000 CR4: 00000000003426b0
[ 20.742451][ T354] Call Trace:
[ 20.745580][ T354] ? __die+0xb4/0x100
[ 20.749394][ T354] ? no_context+0xbda/0xe50
[ 20.753754][ T354] ? is_prefetch+0x4b0/0x4b0
[ 20.758171][ T354] ? rcu_preempt_deferred_qs+0xa4/0x2b0
[ 20.763544][ T354] ? __do_page_fault+0xa7d/0xbb0
[ 20.768331][ T354] ? vmx_spec_ctrl_restore_host+0x83/0xfd
[ 20.773920][ T354] ? __bad_area_nosemaphore+0xc0/0x460
[ 20.779218][ T354] ? page_fault+0x2f/0x40
[ 20.783338][ T354] ? irq_entries_start+0x48/0x660
[ 20.788306][ T354] ? vmx_handle_exit_irqoff+0x45/0x220
[ 20.793695][ T354] ? check_preemption_disabled+0x91/0x320
[ 20.799247][ T354] ? handle_external_interrupt_irqoff+0x148/0x2f0
[ 20.805494][ T354] ? handle_external_interrupt_irqoff+0x12a/0x2f0
[ 20.811741][ T354] ? irq_entries_start+0x48/0x660
[ 20.816607][ T354] ? vcpu_enter_guest+0x2d06/0x9f70
[ 20.821639][ T354] ? check_preemption_disabled+0x9f/0x320
[ 20.827195][ T354] ? debug_smp_processor_id+0x20/0x20
[ 20.832399][ T354] ? __free_pages_ok+0x847/0x950
[ 20.837257][ T354] ? __kvm_set_memory_region+0xda6/0xf60
[ 20.842743][ T354] ? kvm_vm_ioctl_set_memory_region+0x67/0x90
[ 20.848629][ T354] ? do_vfs_ioctl+0x742/0x1720
[ 20.853313][ T354] ? __x64_sys_ioctl+0xd4/0x110
[ 20.858000][ T354] ? check_preemption_disabled+0x9f/0x320
[ 20.863552][ T354] ? local_bh_enable+0x20/0x20
[ 20.868155][ T354] ? __free_one_page+0x7f3/0xa60
[ 20.873015][ T354] ? find_next_and_bit+0x156/0x190
[ 20.878059][ T354] ? cpumask_next_and+0x11/0x30
[ 20.882736][ T354] ? load_balance+0x43e1/0x7a40
[ 20.887424][ T354] ? check_preemption_disabled+0x9f/0x320
[ 20.893073][ T354] ? debug_smp_processor_id+0x20/0x20
[ 20.898272][ T354] ? llist_add_batch+0x91/0xb0
[ 20.902876][ T354] ? generic_exec_single+0x280/0x3e0
[ 20.908079][ T354] ? smp_call_function_single+0x4a0/0x4a0
[ 20.913729][ T354] ? update_load_avg+0x40f/0x1210
[ 20.918755][ T354] ? smp_call_function_single+0x388/0x4a0
[ 20.924306][ T354] ? loaded_vmcs_clear+0x80/0x80
[ 20.929079][ T354] ? generic_smp_call_function_single_interrupt+0x10/0x10
[ 20.936026][ T354] ? check_preemption_disabled+0x9f/0x320
[ 20.941579][ T354] ? loaded_vmcs_clear+0x80/0x80
[ 20.946354][ T354] ? debug_smp_processor_id+0x20/0x20
[ 20.951559][ T354] ? get_cpu_entry_area+0x8/0x30
[ 20.956330][ T354] ? vmx_vcpu_load_vmcs+0x655/0x8b0
[ 20.961364][ T354] ? read_msr+0x40/0x40
[ 20.965358][ T354] ? check_preemption_disabled+0x9f/0x320
[ 20.971118][ T354] ? debug_smp_processor_id+0x20/0x20
[ 20.976319][ T354] ? kvm_arch_vcpu_ioctl_run+0x748/0x18d0
[ 20.981874][ T354] ? kvm_vcpu_ioctl+0x7f9/0xd10
[ 20.986554][ T354] ? create_vcpu_fd+0x120/0x120
[ 20.991242][ T354] ? _raw_spin_lock_irq+0xa5/0x1b0
[ 20.996187][ T354] ? _raw_spin_lock_irqsave+0x210/0x210
[ 21.001577][ T354] ? cgroup_update_frozen+0x157/0xab0
[ 21.006777][ T354] ? cgroup_update_frozen+0x157/0xab0
[ 21.011984][ T354] ? cgroup_leave_frozen+0x13c/0x290
[ 21.017103][ T354] ? ptrace_stop+0x6ee/0xa30
[ 21.021534][ T354] ? create_vcpu_fd+0x120/0x120
[ 21.026222][ T354] ? do_vfs_ioctl+0x742/0x1720
[ 21.030819][ T354] ? ioctl_preallocate+0x250/0x250
[ 21.035786][ T354] ? check_preemption_disabled+0x153/0x320
[ 21.041430][ T354] ? syscall_trace_enter+0x650/0x940
[ 21.046541][ T354] ? do_syscall_64+0x1c0/0x1c0
[ 21.051134][ T354] ? switch_fpu_return+0x1d4/0x410
[ 21.056075][ T354] ? security_file_ioctl+0x7d/0xa0
[ 21.061109][ T354] ? __x64_sys_ioctl+0xd4/0x110
[ 21.065815][ T354] ? do_syscall_64+0xca/0x1c0
[ 21.070309][ T354] ? entry_SYSCALL_64_after_hwframe+0x5c/0xc1
[ 21.076218][ T354] Modules linked in:
[ 21.079951][ T354] CR2: 0000000000000086
[ 21.083943][ T354] ---[ end trace b8101d5cd92e89e7 ]---
[ 21.089236][ T354] RIP: 0010:0x86
[ 21.092611][ T354] Code: Bad RIP value.
[ 21.096682][ T354] RSP: 0018:ffff8881de3ef308 EFLAGS: 00010086
[ 21.102527][ T354] RAX: ffff8881de3ef338 RBX: dffffc0000000000 RCX: ffff8881dc2c2f40
[ 21.110536][ T354] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
[ 21.118324][ T354] RBP: 0000000000000290 R08: ffffffff82315341 R09: ffffffff811c9085
[ 21.126124][ T354] R10: ffff8881dc2c2f40 R11: 0000000000000002 R12: ffffffff84600238
[ 21.133933][ T354] R13: fffffe0000000298 R14: ffff8881dbfe0000 R15: fffffe000000029b
[ 21.141920][ T354] FS: 0000555556103380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[ 21.150682][ T354] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 21.157103][ T354] CR2: 000000000000005c CR3: 00000001dbcf4000 CR4: 00000000003426b0
[ 21.164940][ T354] Kernel panic - not syncing: Fatal exception
[ 21.171032][ T354] Kernel Offset: disabled
[ 21.175161][ T354] Rebooting in 86400 seconds..