[....] Starting enhanced syslogd: rsyslogd[ 15.096866] audit: type=1400 audit(1519780179.365:5): avc: denied { syslog } for pid=3866 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 mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] 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: [ 19.358513] audit: type=1400 audit(1519780183.627:6): avc: denied { map } for pid=4007 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 '10.128.0.15' (ECDSA) to the list of known hosts. [ 25.647488] audit: type=1400 audit(1519780189.916:7): avc: denied { map } for pid=4021 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 2018/02/28 01:09:50 parsed 1 programs 2018/02/28 01:09:50 executed programs: 0 [ 25.897334] audit: type=1400 audit(1519780190.166:8): avc: denied { map } for pid=4021 comm="syz-execprog" path="/root/syzkaller-shm964926939" 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 [ 25.911673] IPVS: ftp: loaded support on port[0] = 21 [ 25.959192] kasan: CONFIG_KASAN_INLINE enabled [ 25.963817] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 25.971259] general protection fault: 0000 [#1] SMP KASAN [ 25.976780] Dumping ftrace buffer: [ 25.980287] (ftrace buffer empty) [ 25.983966] Modules linked in: [ 25.987129] CPU: 0 PID: 4030 Comm: syz-executor0 Not tainted 4.16.0-rc3+ #242 [ 25.994374] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.003712] RIP: 0010:hrtimer_active+0x1da/0x3c0 [ 26.008436] RSP: 0018:ffff8801b918f3e0 EFLAGS: 00010202 [ 26.013775] RAX: 0000000000000008 RBX: 1ffff10037231ea9 RCX: ffffffff81610225 [ 26.021019] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000010 [ 26.028523] RBP: ffff8801b918f520 R08: 0000000000002c02 R09: 0000000000000000 [ 26.035761] R10: 0000000000000011 R11: ffffed0037222078 R12: 0000000000000010 [ 26.043001] R13: 0000000000000000 R14: ffffed0037231e87 R15: dffffc0000000000 [ 26.050251] FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:000000000a348900 [ 26.058453] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 26.064306] CR2: 00000000f7f1a000 CR3: 00000001d08fb005 CR4: 00000000001626f0 [ 26.071548] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.078809] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.086051] Call Trace: [ 26.088622] ? hrtimer_forward+0x2d0/0x2d0 [ 26.092827] ? vmx_update_msr_bitmap+0x13a/0x430 [ 26.097556] ? setup_msrs+0x926/0x1d80 [ 26.101415] ? vmx_set_cr4+0x353/0x610 [ 26.105277] hrtimer_try_to_cancel+0x91/0x5b0 [ 26.109745] ? update_exception_bitmap+0x19a/0x200 [ 26.114652] ? __hrtimer_get_remaining+0x1c0/0x1c0 [ 26.119554] ? vmx_vcpu_reset+0x55f/0xc70 [ 26.123674] ? load_vmcs12_host_state+0x1fa0/0x1fa0 [ 26.128661] ? __mutex_unlock_slowpath+0xe9/0xac0 [ 26.133481] ? unwind_get_return_address+0x61/0xa0 [ 26.138386] hrtimer_cancel+0x22/0x40 [ 26.142159] kvm_lapic_reset+0x93/0xf40 [ 26.146103] ? kvm_lapic_set_base+0x750/0x750 [ 26.150569] ? kvm_arch_vcpu_free+0x80/0x80 [ 26.154863] kvm_arch_vcpu_setup+0x31/0x50 [ 26.159068] kvm_vm_ioctl+0x52d/0x1cf0 [ 26.162929] ? kvm_set_memory_region+0x50/0x50 [ 26.167484] ? __fd_install+0x288/0x740 [ 26.171431] ? get_unused_fd_flags+0x190/0x190 [ 26.175981] ? kfree+0xf3/0x260 [ 26.179233] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.184310] ? do_futex+0x86f/0x22a0 [ 26.187996] ? kfree+0xf3/0x260 [ 26.191250] ? kvm_uevent_notify_change.part.39+0x39c/0x430 [ 26.196932] ? trace_hardirqs_on+0xd/0x10 [ 26.201051] ? exit_robust_list+0x240/0x240 [ 26.205345] ? fd_install+0x4d/0x60 [ 26.208943] ? kvm_dev_ioctl+0x17b/0x18b0 [ 26.213066] ? install_new_memslots+0x420/0x420 [ 26.217716] ? _raw_spin_unlock+0x22/0x30 [ 26.221841] ? __pmd_alloc+0x4e0/0x4e0 [ 26.225696] ? trace_hardirqs_off+0x10/0x10 [ 26.229988] ? debug_check_no_obj_freed+0x3da/0xf1f [ 26.234981] ? check_same_owner+0x320/0x320 [ 26.239276] ? handle_mm_fault+0x35b/0xb10 [ 26.243481] ? rcu_note_context_switch+0x710/0x710 [ 26.248386] ? __might_sleep+0x95/0x190 [ 26.252336] ? _cond_resched+0x14/0x30 [ 26.256195] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 26.261097] ? selinux_file_ioctl+0x444/0x690 [ 26.265561] ? __fget_light+0x2b2/0x3c0 [ 26.269507] kvm_vm_compat_ioctl+0x2ed/0x3f0 [ 26.273886] ? kvm_vm_ioctl+0x1cf0/0x1cf0 [ 26.278007] ? compat_SyS_futex+0x288/0x380 [ 26.282307] ? security_file_ioctl+0x7d/0xb0 [ 26.286689] ? security_file_ioctl+0x89/0xb0 [ 26.291084] compat_SyS_ioctl+0x151/0x2a30 [ 26.295299] ? do_fast_syscall_32+0x156/0xf9f [ 26.299771] ? kvm_vm_ioctl+0x1cf0/0x1cf0 [ 26.303896] ? do_ioctl+0x60/0x60 [ 26.307324] do_fast_syscall_32+0x3ec/0xf9f [ 26.311619] ? do_int80_syscall_32+0x9c0/0x9c0 [ 26.316169] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 26.320899] ? syscall_return_slowpath+0x2ac/0x550 [ 26.325799] ? prepare_exit_to_usermode+0x350/0x350 [ 26.330786] ? sysret32_from_system_call+0x5/0x3c [ 26.335602] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 26.340416] entry_SYSENTER_compat+0x70/0x7f [ 26.344793] RIP: 0023:0xf7f1ec99 [ 26.348126] RSP: 002b:00000000ffb51b8c EFLAGS: 00000286 ORIG_RAX: 0000000000000036 [ 26.355800] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000000ae41 [ 26.363039] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 26.370278] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 26.377520] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 26.384761] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 26.392011] 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 [ 26.411089] RIP: hrtimer_active+0x1da/0x3c0 RSP: ffff8801b918f3e0 [ 26.417340] ---[ end trace 8939ca23fa675d3f ]--- [ 26.422095] Kernel panic - not syncing: Fatal exception [ 26.427865] Dumping ftrace buffer: [ 26.431380] (ftrace buffer empty) [ 26.435061] Kernel Offset: disabled [ 26.438655] Rebooting in 86400 seconds..