[....] Starting enhanced syslogd: rsyslogd[ 16.336127] audit: type=1400 audit(1519920099.010:5): avc: denied { syslog } for pid=3993 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 22.349821] audit: type=1400 audit(1519920105.024:6): avc: denied { map } for pid=4134 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.42' (ECDSA) to the list of known hosts. [ 29.059167] audit: type=1400 audit(1519920111.734:7): avc: denied { map } for pid=4148 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16479 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2018/03/01 16:01:51 parsed 1 programs 2018/03/01 16:01:51 executed programs: 0 [ 29.293523] audit: type=1400 audit(1519920111.968:8): avc: denied { map } for pid=4148 comm="syz-execprog" path="/root/syzkaller-shm487230305" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 29.303588] IPVS: ftp: loaded support on port[0] = 21 [ 29.354994] kasan: CONFIG_KASAN_INLINE enabled [ 29.359634] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.367123] general protection fault: 0000 [#1] SMP KASAN [ 29.372636] Dumping ftrace buffer: [ 29.376146] (ftrace buffer empty) [ 29.379827] Modules linked in: [ 29.382994] CPU: 0 PID: 4157 Comm: syz-executor0 Not tainted 4.16.0-rc3+ #244 [ 29.390234] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.399574] RIP: 0010:hrtimer_active+0x1da/0x3c0 [ 29.404295] RSP: 0018:ffff8801c22973e0 EFLAGS: 00010202 [ 29.409640] RAX: 0000000000000008 RBX: 1ffff10038452ea9 RCX: ffffffff81610225 [ 29.416889] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000010 [ 29.424147] RBP: ffff8801c2297520 R08: 0000000000002c02 R09: 0000000000000000 [ 29.431391] R10: 0000000000000011 R11: ffffed003842d078 R12: 0000000000000010 [ 29.438635] R13: 0000000000000000 R14: ffffed0038452e87 R15: dffffc0000000000 [ 29.445879] FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:0000000008eaa900 [ 29.454077] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 29.459928] CR2: 00000000f7f9e000 CR3: 00000001c2e54004 CR4: 00000000001626f0 [ 29.467172] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.474411] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.481650] Call Trace: [ 29.484215] ? hrtimer_forward+0x2d0/0x2d0 [ 29.488421] ? vmx_update_msr_bitmap+0x13a/0x430 [ 29.493149] ? setup_msrs+0x926/0x1d80 [ 29.497010] ? vmx_set_cr4+0x353/0x610 [ 29.500874] hrtimer_try_to_cancel+0x91/0x5b0 [ 29.505341] ? update_exception_bitmap+0x19a/0x200 [ 29.510248] ? __hrtimer_get_remaining+0x1c0/0x1c0 [ 29.515146] ? vmx_vcpu_reset+0x55f/0xc70 [ 29.519263] ? load_vmcs12_host_state+0x1fa0/0x1fa0 [ 29.524253] ? __mutex_unlock_slowpath+0xe9/0xac0 [ 29.529064] ? unwind_get_return_address+0x61/0xa0 [ 29.533972] hrtimer_cancel+0x22/0x40 [ 29.537745] kvm_lapic_reset+0x93/0xf40 [ 29.541692] ? kvm_lapic_set_base+0x750/0x750 [ 29.546158] ? kvm_arch_vcpu_free+0x80/0x80 [ 29.550451] kvm_arch_vcpu_setup+0x31/0x50 [ 29.554669] kvm_vm_ioctl+0x52d/0x1cf0 [ 29.558528] ? kvm_set_memory_region+0x50/0x50 [ 29.563081] ? __fd_install+0x288/0x740 [ 29.567027] ? get_unused_fd_flags+0x190/0x190 [ 29.571580] ? kfree+0xf3/0x260 [ 29.574831] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 29.579820] ? do_futex+0x86f/0x22a0 [ 29.583502] ? kfree+0xf3/0x260 [ 29.586751] ? kvm_uevent_notify_change.part.39+0x39c/0x430 [ 29.592432] ? trace_hardirqs_on+0xd/0x10 [ 29.596550] ? exit_robust_list+0x240/0x240 [ 29.600841] ? fd_install+0x4d/0x60 [ 29.604437] ? kvm_dev_ioctl+0x17b/0x18b0 [ 29.608559] ? install_new_memslots+0x420/0x420 [ 29.613199] ? _raw_spin_unlock+0x22/0x30 [ 29.617321] ? __pmd_alloc+0x4e0/0x4e0 [ 29.621176] ? trace_hardirqs_off+0x10/0x10 [ 29.625467] ? debug_check_no_obj_freed+0x3da/0xf1f [ 29.630461] ? check_same_owner+0x320/0x320 [ 29.634838] ? handle_mm_fault+0x35b/0xb10 [ 29.639041] ? rcu_note_context_switch+0x710/0x710 [ 29.643942] ? __might_sleep+0x95/0x190 [ 29.647887] ? _cond_resched+0x14/0x30 [ 29.651745] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 29.656646] ? selinux_file_ioctl+0x444/0x690 [ 29.661110] ? __fget_light+0x2b2/0x3c0 [ 29.665057] kvm_vm_compat_ioctl+0x2ed/0x3f0 [ 29.669438] ? kvm_vm_ioctl+0x1cf0/0x1cf0 [ 29.673556] ? compat_SyS_futex+0x288/0x380 [ 29.677850] ? security_file_ioctl+0x7d/0xb0 [ 29.682227] ? security_file_ioctl+0x89/0xb0 [ 29.686610] compat_SyS_ioctl+0x151/0x2a30 [ 29.690816] ? do_fast_syscall_32+0x156/0xf9f [ 29.695282] ? kvm_vm_ioctl+0x1cf0/0x1cf0 [ 29.699399] ? do_ioctl+0x60/0x60 [ 29.702822] do_fast_syscall_32+0x3ec/0xf9f [ 29.707114] ? do_int80_syscall_32+0x9c0/0x9c0 [ 29.711666] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.716401] ? syscall_return_slowpath+0x2ac/0x550 [ 29.721301] ? prepare_exit_to_usermode+0x350/0x350 [ 29.726289] ? sysret32_from_system_call+0x5/0x3c [ 29.731106] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.735923] entry_SYSENTER_compat+0x70/0x7f [ 29.740301] RIP: 0023:0xf7fa2c99 [ 29.743634] RSP: 002b:00000000ffb2724c EFLAGS: 00000286 ORIG_RAX: 0000000000000036 [ 29.751310] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000000ae41 [ 29.758551] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 29.765790] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 29.773031] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 29.780275] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 29.787523] Code: ff ff 48 8d 85 18 ff ff ff 48 c1 e8 03 4e 8d 34 38 e8 1b f2 0f 00 48 8b 85 f0 fe ff ff c6 00 00 48 8b 85 d8 fe ff ff 48 c1 e8 03 <42> 80 3c 38 00 0f 85 c2 01 00 00 48 8b 85 e8 fe ff ff 48 8b 58 [ 29.806593] RIP: hrtimer_active+0x1da/0x3c0 RSP: ffff8801c22973e0 [ 29.812862] ---[ end trace 42a1f78c85ecf381 ]--- [ 29.817606] Kernel panic - not syncing: Fatal exception [ 29.823296] Dumping ftrace buffer: [ 29.826807] (ftrace buffer empty) [ 29.830490] Kernel Offset: disabled [ 29.834095] Rebooting in 86400 seconds..