[....] Starting enhanced syslogd: rsyslogd[ 10.662793] audit: type=1400 audit(1515123820.212:5): avc: denied { syslog } for pid=3309 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: [ 34.971307] audit: type=1400 audit(1515123844.521:6): avc: denied { map } for pid=3455 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 '10.128.15.214' (ECDSA) to the list of known hosts. [ 40.910251] audit: type=1400 audit(1515123850.460:7): avc: denied { map } for pid=3467 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 2018/01/05 03:44:10 parsed 1 programs 2018/01/05 03:44:10 executed programs: 0 [ 41.030134] audit: type=1400 audit(1515123850.579:8): avc: denied { map } for pid=3467 comm="syz-execprog" path="/root/syzkaller-shm408257286" 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 [ 41.062115] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 41.100940] kasan: CONFIG_KASAN_INLINE enabled [ 41.105563] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 41.112896] general protection fault: 0000 [#1] SMP KASAN [ 41.118399] Dumping ftrace buffer: [ 41.121905] (ftrace buffer empty) [ 41.125582] Modules linked in: [ 41.128747] CPU: 1 PID: 3444 Comm: udevd Not tainted 4.15.0-rc6-mm1+ #50 [ 41.135549] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.144878] RIP: 0010:native_write_cr4+0x4/0x10 [ 41.149511] RSP: 0018:ffff8801db507ed0 EFLAGS: 00010006 [ 41.154842] RAX: ffff8801c209a040 RBX: 00000000001606e0 RCX: ffffffff8115d7c2 [ 41.162077] RDX: 0000000000010000 RSI: 0000000000000000 RDI: 00000000001606e0 [ 41.169399] RBP: ffff8801db507ed0 R08: ffffffff8196e836 R09: 0000000000000004 [ 41.176635] R10: ffff8801c206fd28 R11: 0000000000000001 R12: 0000000000000006 [ 41.183871] R13: ffff8801c209a040 R14: ffff8801db51a130 R15: ffff8801db51a130 [ 41.191107] FS: 00007fb5aba257a0(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000 [ 41.199299] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.205144] CR2: 00007fb5aba2c000 CR3: 00000001c2030002 CR4: 00000000001626e0 [ 41.212391] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.219630] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.226868] Call Trace: [ 41.229420] [ 41.231543] hardware_disable+0x34a/0x4b0 [ 41.235660] ? kvm_io_bus_get_dev+0x1b0/0x1b0 [ 41.240123] kvm_arch_hardware_disable+0x35/0xd0 [ 41.244850] hardware_disable_nolock+0x30/0x40 [ 41.249401] flush_smp_call_function_queue+0x165/0x420 [ 41.254651] generic_smp_call_function_single_interrupt+0x13/0x30 [ 41.260850] smp_call_function_single_interrupt+0x83/0x450 [ 41.266439] call_function_single_interrupt+0xa9/0xb0 [ 41.271591] [ 41.273798] RIP: 0010:lock_is_held_type+0x18b/0x210 [ 41.278777] RSP: 0018:ffff8801c206fc98 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff04 [ 41.286450] RAX: dffffc0000000000 RBX: 0000000000000282 RCX: ffffffff8196cd65 [ 41.293696] RDX: 1ffffffff0bd909d RSI: ffff8801c2d39918 RDI: 0000000000000282 [ 41.300930] RBP: ffff8801c206fcb8 R08: ffffffff8196e836 R09: 0000000000000004 [ 41.308166] R10: ffff8801c206fd28 R11: 0000000000000001 R12: ffff8801c209a040 [ 41.315403] R13: 0000000000000001 R14: ffff8801c2d39898 R15: 0000000000000000 [ 41.322644] ? __alloc_fd+0x36/0x510 [ 41.326321] ? expand_files+0x3e5/0x6c0 [ 41.330265] expand_files+0x3f6/0x6c0 [ 41.334033] ? do_dup2+0x3c0/0x3c0 [ 41.337539] ? __lock_is_held+0xb6/0x140 [ 41.341578] ? find_next_zero_bit+0xe3/0x110 [ 41.345954] __alloc_fd+0x8d/0x510 [ 41.349463] get_unused_fd_flags+0x9e/0xd0 [ 41.353663] do_sys_open+0x233/0x4b0 [ 41.357345] ? filp_open+0x70/0x70 [ 41.360853] ? entry_SYSCALL_64_fastpath+0x5/0x9a [ 41.365662] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 41.370647] SyS_open+0x2d/0x40 [ 41.373902] entry_SYSCALL_64_fastpath+0x23/0x9a [ 41.378621] RIP: 0033:0x7fb5ab12d120 [ 41.382296] RSP: 002b:00007ffd4ba99898 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 41.389968] RAX: ffffffffffffffda RBX: 00007ffd4ba99510 RCX: 00007fb5ab12d120 [ 41.397205] RDX: 00000000000001b6 RSI: 0000000000080241 RDI: 00007ffd4ba99d80 [ 41.404441] RBP: 00000000017a6f40 R08: 0000000000000004 R09: 0000000000000001 [ 41.411676] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000001742030 [ 41.418913] R13: 0000000000000000 R14: 00007ffd4ba99980 R15: 0000000000000001 [ 41.426152] Code: 0f 1f 80 00 00 00 00 55 48 89 e5 0f 20 d8 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 0f 22 df 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 <0f> 22 e7 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 44 0f 20 c0 5d [ 41.445204] RIP: native_write_cr4+0x4/0x10 RSP: ffff8801db507ed0 [ 41.451323] ---[ end trace 84a6b791fb29b9fc ]--- [ 41.456040] Kernel panic - not syncing: Fatal exception in interrupt [ 41.462525] Dumping ftrace buffer: [ 41.466046] (ftrace buffer empty) [ 41.469725] Kernel Offset: disabled [ 41.473316] Rebooting in 86400 seconds..