[....] Starting enhanced syslogd: rsyslogd[ 5.406267] audit: type=1400 audit(1513489152.342:5): avc: denied { syslog } for pid=2977 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: [ 12.841444] audit: type=1400 audit(1513489159.777:6): avc: denied { map } for pid=3113 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 'ci-upstream-next-kasan-gce-9,10.128.15.215' (ECDSA) to the list of known hosts. [ 52.782956] audit: type=1400 audit(1513489199.718:7): avc: denied { map } for pid=3132 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 2017/12/17 05:40:00 parsed 1 programs 2017/12/17 05:40:00 executed programs: 0 [ 53.230348] audit: type=1400 audit(1513489200.166:8): avc: denied { map } for pid=3132 comm="syz-execprog" path="/root/syzkaller-shm671414503" 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 [ 53.265419] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 53.298206] general protection fault: 0000 [#1] SMP [ 53.303224] Dumping ftrace buffer: [ 53.306726] (ftrace buffer empty) [ 53.310398] Modules linked in: [ 53.313555] CPU: 1 PID: 1757 Comm: udevd Not tainted 4.15.0-rc3-next-20171214+ #67 [ 53.321222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.330548] RIP: 0010:native_write_cr4+0x4/0x10 [ 53.335177] RSP: 0018:ffff88021fd03f20 EFLAGS: 00010006 [ 53.340501] RAX: ffff880214e2a1c0 RBX: 00000000001606e0 RCX: ffffffff8108d968 [ 53.347734] RDX: 0000000000010000 RSI: 0000000000000000 RDI: 00000000001606e0 [ 53.354969] RBP: ffff88021fd03f20 R08: 0000000000000001 R09: 0000000000000000 [ 53.362201] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000006 [ 53.369435] R13: ffff880214e2a1c0 R14: ffffffff81026eb0 R15: 0000000000000000 [ 53.376671] FS: 00007faf2e0f97a0(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 [ 53.384860] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.390704] CR2: 00007faf2e100000 CR3: 0000000211a5a005 CR4: 00000000001626e0 [ 53.397942] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.405180] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.412412] Call Trace: [ 53.414958] [ 53.417076] hardware_disable+0x1a0/0x210 [ 53.421191] ? kvm_io_bus_get_dev+0x150/0x150 [ 53.425649] kvm_arch_hardware_disable+0x14/0x50 [ 53.430366] hardware_disable_nolock+0x30/0x40 [ 53.434909] flush_smp_call_function_queue+0x95/0x1e0 [ 53.440063] generic_smp_call_function_single_interrupt+0x13/0x30 [ 53.446258] smp_call_function_single_interrupt+0x42/0x240 [ 53.451848] call_function_single_interrupt+0xa9/0xb0 [ 53.456998] [ 53.459197] RIP: 0010:kfree+0xed/0x220 [ 53.463046] RSP: 0018:ffffc9000136fb78 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff04 [ 53.470725] RAX: ffff880214e2a1c0 RBX: ffff880216710580 RCX: 0000000000000006 [ 53.477962] RDX: 0000000000000604 RSI: ffff880214e2aa58 RDI: 0000000000000286 [ 53.485455] RBP: ffffc9000136fb90 R08: 0000000000000001 R09: 0000000000000000 [ 53.492688] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000286 [ 53.499921] R13: ffff880217800180 R14: ffff8802140a4780 R15: ffffc9000136fbb0 [ 53.507167] security_context_to_sid_core+0xbd/0x260 [ 53.512238] security_context_to_sid_force+0x33/0x40 [ 53.517305] selinux_inode_post_setxattr+0x5d/0x140 [ 53.522287] security_inode_post_setxattr+0x5f/0x80 [ 53.527264] __vfs_setxattr_noperm+0x1e0/0x200 [ 53.531807] vfs_setxattr+0xb4/0xc0 [ 53.535395] setxattr+0x19f/0x220 [ 53.538818] ? __lock_is_held+0x5a/0xa0 [ 53.542758] ? rcu_read_lock_sched_held+0x74/0x80 [ 53.547562] ? rcu_sync_lockdep_assert+0x27/0x50 [ 53.552281] ? __sb_start_write+0x186/0x1f0 [ 53.556564] ? __mnt_want_write+0x71/0xa0 [ 53.560673] path_setxattr+0xbd/0xd0 [ 53.564354] SyS_lsetxattr+0x38/0x50 [ 53.568033] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 53.572748] RIP: 0033:0x7faf2d80bffa [ 53.576422] RSP: 002b:00007ffc9c6c8728 EFLAGS: 00000206 ORIG_RAX: 00000000000000bd [ 53.584092] RAX: ffffffffffffffda RBX: 00007faf2dab7e98 RCX: 00007faf2d80bffa [ 53.591324] RDX: 00000000022ebf30 RSI: 00007faf2dcdaf69 RDI: 00007ffc9c6c9180 [ 53.598553] RBP: 00007faf2dab7e40 R08: 0000000000000000 R09: 0000000000001fff [ 53.606039] R10: 000000000000001e R11: 0000000000000206 R12: 00007faf2dab7ec8 [ 53.613272] R13: 00000000022ebf20 R14: 0000000000000040 R15: 0000000000000010 [ 53.620507] 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 [ 53.639535] RIP: native_write_cr4+0x4/0x10 RSP: ffff88021fd03f20 [ 53.645642] ---[ end trace 6c2d75ec41e49952 ]--- [ 53.650360] Kernel panic - not syncing: Fatal exception in interrupt [ 53.656842] Dumping ftrace buffer: [ 53.660342] (ftrace buffer empty) [ 53.664017] Kernel Offset: disabled [ 53.667604] Rebooting in 86400 seconds..