[....] Starting enhanced syslogd: rsyslogd[ 11.301619] audit: type=1400 audit(1513796311.030:5): avc: denied { syslog } for pid=3000 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: [ 16.456657] audit: type=1400 audit(1513796316.185:6): avc: denied { map } for pid=3139 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-kasan-gce-5,10.128.15.244' (ECDSA) to the list of known hosts. [ 22.620368] audit: type=1400 audit(1513796322.348:7): avc: denied { map } for pid=3153 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 2017/12/20 18:58:42 parsed 1 programs 2017/12/20 18:58:42 executed programs: 0 [ 22.740150] audit: type=1400 audit(1513796322.468:8): avc: denied { map } for pid=3153 comm="syz-execprog" path="/root/syzkaller-shm202151356" 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 [ 22.831615] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 22.868909] kasan: CONFIG_KASAN_INLINE enabled [ 22.873529] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 22.880862] general protection fault: 0000 [#1] SMP KASAN [ 22.886369] Dumping ftrace buffer: [ 22.889874] (ftrace buffer empty) [ 22.893553] Modules linked in: [ 22.896718] CPU: 0 PID: 3134 Comm: udevd Not tainted 4.15.0-rc4+ #230 [ 22.903261] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 22.912599] RIP: 0010:native_write_cr4+0x4/0x10 [ 22.917235] RSP: 0018:ffff8801db407ca8 EFLAGS: 00010006 [ 22.922567] RAX: ffff8801cb01e600 RBX: 00000000001606f0 RCX: ffffffff811a2c72 [ 22.929818] RDX: 0000000000010000 RSI: 0000000000000000 RDI: 00000000001606f0 [ 22.937054] RBP: ffff8801db407ca8 R08: 1ffff10039644eea R09: 0000000000000000 [ 22.944289] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000006 [ 22.951532] R13: ffff8801cb01e600 R14: ffff8801db415850 R15: ffff8801db415850 [ 22.958776] FS: 00007f9e7f2e87a0(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 22.966968] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.972816] CR2: 00007f9e7f2ee000 CR3: 00000001cb24f002 CR4: 00000000001626f0 [ 22.980054] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.987291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.994527] Call Trace: [ 22.997079] [ 22.999206] hardware_disable+0x34a/0x4b0 [ 23.003320] ? irq_work_sync+0x1a0/0x1a0 [ 23.007350] ? lock_downgrade+0x980/0x980 [ 23.011468] ? kvm_io_bus_get_dev+0x2a0/0x2a0 [ 23.015930] kvm_arch_hardware_disable+0x35/0xd0 [ 23.020653] hardware_disable_nolock+0x30/0x40 [ 23.025204] flush_smp_call_function_queue+0x1f4/0x570 [ 23.030449] ? cpumask_weight+0x40/0x40 [ 23.034398] ? tick_program_event+0x83/0x100 [ 23.038778] ? __lock_is_held+0xb6/0x140 [ 23.042810] generic_smp_call_function_single_interrupt+0x13/0x30 [ 23.049010] smp_call_function_single_interrupt+0x103/0x640 [ 23.054688] ? smp_call_function_interrupt+0x640/0x640 [ 23.059930] ? _raw_spin_lock+0x32/0x40 [ 23.063870] ? _raw_spin_unlock+0x22/0x30 [ 23.067996] ? handle_edge_irq+0x2b4/0x7c0 [ 23.072213] ? task_prio+0x40/0x40 [ 23.075729] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 23.080542] call_function_single_interrupt+0xa9/0xb0 [ 23.085697] [ 23.087906] RIP: 0010:qlist_free_all+0xa9/0x160 [ 23.092539] RSP: 0018:ffff8801cb2278e0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff04 [ 23.100213] RAX: 0000000000000007 RBX: 0000000000000282 RCX: 0000000000000006 [ 23.107449] RDX: 0000000000000000 RSI: ffff8801cb01eea0 RDI: 0000000000000282 [ 23.114687] RBP: ffff8801cb227918 R08: 1ffff10039644eea R09: 0000000000000000 [ 23.121922] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 23.129167] R13: ffff8801db000dc0 R14: ffff8801c9f2c2c0 R15: ffffffff85ec8220 [ 23.136425] quarantine_reduce+0x141/0x170 [ 23.140629] kasan_kmalloc+0xca/0xe0 [ 23.144314] kasan_slab_alloc+0x12/0x20 [ 23.148270] kmem_cache_alloc_node_trace+0x139/0x750 [ 23.153349] ? __lock_is_held+0xb6/0x140 [ 23.157381] __kmalloc_node+0x33/0x70 [ 23.161151] kvmalloc_node+0x99/0xd0 [ 23.164833] seq_read+0x7cd/0x13d0 [ 23.168349] ? seq_lseek+0x3c0/0x3c0 [ 23.172033] ? vm_mmap_pgoff+0x1ed/0x280 [ 23.176060] ? lock_downgrade+0x980/0x980 [ 23.180182] kernfs_fop_read+0x455/0x610 [ 23.184212] ? kernfs_vma_page_mkwrite+0x220/0x220 [ 23.189113] ? kernfs_vma_page_mkwrite+0x220/0x220 [ 23.194010] __vfs_read+0xef/0xa00 [ 23.197518] ? fsnotify+0x7b3/0x1140 [ 23.201199] ? vfs_copy_file_range+0x940/0x940 [ 23.205752] ? fsnotify_first_mark+0x2b0/0x2b0 [ 23.210305] ? avc_policy_seqno+0x9/0x20 [ 23.214333] ? selinux_file_permission+0x82/0x460 [ 23.219145] ? security_file_permission+0x89/0x1e0 [ 23.224044] ? rw_verify_area+0xe5/0x2b0 [ 23.228072] ? __fdget_raw+0x20/0x20 [ 23.231753] vfs_read+0x11e/0x350 [ 23.235174] SyS_read+0xef/0x220 [ 23.238507] ? kernel_write+0x120/0x120 [ 23.242447] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 23.247433] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 23.252162] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 23.256885] RIP: 0033:0x7f9e7e9f0310 [ 23.260561] RSP: 002b:00007ffdf25380b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 23.268236] RAX: ffffffffffffffda RBX: 0000000002358030 RCX: 00007f9e7e9f0310 [ 23.275475] RDX: 0000000000001000 RSI: 00007f9e7f2ef000 RDI: 0000000000000005 [ 23.282712] RBP: 000000000239fb80 R08: 00000000ffffffff R09: 0000000000000000 [ 23.289949] R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000000004 [ 23.297185] R13: 0000000002375457 R14: 0000000002358030 R15: 000000000000000b [ 23.304446] 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 [ 23.323570] RIP: native_write_cr4+0x4/0x10 RSP: ffff8801db407ca8 [ 23.329688] ---[ end trace de28628d026e1034 ]--- [ 23.334407] Kernel panic - not syncing: Fatal exception in interrupt [ 23.341298] Dumping ftrace buffer: [ 23.344809] (ftrace buffer empty) [ 23.348484] Kernel Offset: disabled [ 23.352075] Rebooting in 86400 seconds..