[ 11.602821] audit: type=1400 audit(1515830912.822:5): avc: denied { syslog } for pid=3346 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?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: [ 16.629979] audit: type=1400 audit(1515830917.849:6): avc: denied { map } for pid=3489 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 '10.128.15.230' (ECDSA) to the list of known hosts. [ 22.815174] audit: type=1400 audit(1515830924.034:7): avc: denied { map } for pid=3503 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 2018/01/13 08:08:44 parsed 1 programs 2018/01/13 08:08:44 executed programs: 0 [ 22.962153] audit: type=1400 audit(1515830924.179:8): avc: denied { map } for pid=3503 comm="syz-execprog" path="/root/syzkaller-shm266641099" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 23.034900] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 23.814642] kasan: CONFIG_KASAN_INLINE enabled [ 23.819261] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 23.826597] general protection fault: 0000 [#1] SMP KASAN [ 23.832114] Dumping ftrace buffer: [ 23.835625] (ftrace buffer empty) [ 23.839308] Modules linked in: [ 23.842474] CPU: 1 PID: 3484 Comm: udevd Not tainted 4.15.0-rc7-next-20180112+ #95 [ 23.850148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.859828] RIP: 0010:native_write_cr4+0x4/0x10 [ 23.864467] RSP: 0018:ffff8801db307ca8 EFLAGS: 00010006 [ 23.869800] RAX: ffff8801c1e14080 RBX: 00000000001606e0 RCX: ffffffff811a4b82 [ 23.878082] RDX: 0000000000010000 RSI: 0000000000000000 RDI: 00000000001606e0 [ 23.885324] RBP: ffff8801db307ca8 R08: 1ffff10038465e8b R09: 0000000000000000 [ 23.892578] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000006 [ 23.899820] R13: ffff8801c1e14080 R14: ffff8801db31d130 R15: ffff8801db31d130 [ 23.907064] FS: 00007fbc2a5be7a0(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 23.916509] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.922364] CR2: 00007fbc2a5c5000 CR3: 00000001c1f4b002 CR4: 00000000001626e0 [ 23.929615] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.936856] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.945060] Call Trace: [ 23.947626] [ 23.949753] hardware_disable+0x34a/0x4b0 [ 23.953875] ? irq_work_sync+0x1a0/0x1a0 [ 23.958184] ? lock_downgrade+0x980/0x980 [ 23.962831] ? kvm_io_bus_get_dev+0x2a0/0x2a0 [ 23.967302] kvm_arch_hardware_disable+0x35/0xd0 [ 23.972030] hardware_disable_nolock+0x30/0x40 [ 23.976586] flush_smp_call_function_queue+0x1f4/0x570 [ 23.981835] ? cpumask_weight+0x40/0x40 [ 23.985784] ? rcu_idle_exit+0x410/0x410 [ 23.989820] ? __lock_is_held+0xb6/0x140 [ 23.993858] generic_smp_call_function_single_interrupt+0x13/0x30 [ 24.000073] smp_call_function_single_interrupt+0x103/0x640 [ 24.005755] ? smp_call_function_interrupt+0x640/0x640 [ 24.011175] ? _raw_spin_lock+0x32/0x40 [ 24.015122] ? _raw_spin_unlock+0x22/0x30 [ 24.019500] ? handle_edge_irq+0x2b4/0x7c0 [ 24.023708] ? task_prio+0x40/0x40 [ 24.027226] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.032050] call_function_single_interrupt+0xa9/0xb0 [ 24.037469] [ 24.039692] RIP: 0010:qlist_free_all+0xa9/0x160 [ 24.044336] RSP: 0018:ffff8801c232f5e8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff04 [ 24.052015] RAX: 0000000000000007 RBX: 0000000000000286 RCX: 0000000000000006 [ 24.059258] RDX: 0000000000000000 RSI: ffff8801c1e14948 RDI: 0000000000000286 [ 24.066497] RBP: ffff8801c232f620 R08: 1ffff10038465e8b R09: 0000000000000000 [ 24.073746] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 24.080986] R13: ffff8801dad30380 R14: ffff8801d92b0840 R15: ffffffff868c9120 [ 24.088510] quarantine_reduce+0x141/0x170 [ 24.092721] kasan_kmalloc+0xca/0xe0 [ 24.096410] __kmalloc+0x162/0x760 [ 24.099924] ? __lockdep_init_map+0xe4/0x650 [ 24.104320] ? simple_xattr_alloc+0x31/0x90 [ 24.108613] ? memcpy+0x45/0x50 [ 24.111863] ? shmem_initxattrs+0x132/0x1e0 [ 24.116161] shmem_initxattrs+0x132/0x1e0 [ 24.120286] security_inode_init_security+0x326/0x390 [ 24.125446] ? shmem_tmpfile+0xf0/0xf0 [ 24.129312] ? unregister_lsm_notifier+0x20/0x20 [ 24.134049] shmem_mknod+0x9b/0x1b0 [ 24.137648] ? selinux_inode_create+0x22/0x30 [ 24.142637] shmem_create+0x2b/0x40 [ 24.146238] ? shmem_mkdir+0x50/0x50 [ 24.149922] lookup_open+0x1217/0x1970 [ 24.153779] ? path_openat+0xd4d/0x3530 [ 24.157727] ? trailing_symlink+0x810/0x810 [ 24.162025] ? __might_sleep+0x95/0x190 [ 24.166329] path_openat+0xd76/0x3530 [ 24.170109] ? path_lookupat+0xba0/0xba0 [ 24.174149] ? lock_downgrade+0x980/0x980 [ 24.178270] ? do_sys_open+0x2e7/0x6d0 [ 24.182129] ? lock_release+0xa40/0xa40 [ 24.186075] ? find_held_lock+0x35/0x1d0 [ 24.190109] ? do_raw_spin_trylock+0x190/0x190 [ 24.194664] ? __lock_is_held+0xb6/0x140 [ 24.198702] ? _raw_spin_unlock+0x22/0x30 [ 24.202821] ? __alloc_fd+0x29b/0x750 [ 24.206601] do_filp_open+0x25b/0x3b0 [ 24.210376] ? may_open_dev+0xe0/0xe0 [ 24.214153] ? mpi_resize+0x200/0x200 [ 24.217928] ? get_unused_fd_flags+0x121/0x190 [ 24.222490] ? getname_flags+0x256/0x580 [ 24.226534] do_sys_open+0x502/0x6d0 [ 24.230226] ? do_sys_open+0x502/0x6d0 [ 24.234089] ? filp_open+0x70/0x70 [ 24.237599] ? entry_SYSCALL_64_fastpath+0x5/0xa0 [ 24.242414] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.247417] SyS_open+0x2d/0x40 [ 24.250671] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 24.255400] RIP: 0033:0x7fbc29cc6120 [ 24.259084] RSP: 002b:00007ffdeff4d1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 24.266763] RAX: ffffffffffffffda RBX: 0000000000b5cf20 RCX: 00007fbc29cc6120 [ 24.274006] RDX: 00000000000001b6 RSI: 0000000000080241 RDI: 00007ffdeff4d6b0 [ 24.281250] RBP: 0000000000000005 R08: 0000000000000004 R09: 0000000000000001 [ 24.288492] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000001000 [ 24.295735] R13: 0000000000a30ac0 R14: 00007ffdeff4bba8 R15: 0000000000000000 [ 24.302986] 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 [ 24.322168] RIP: native_write_cr4+0x4/0x10 RSP: ffff8801db307ca8 [ 24.328290] ---[ end trace c777a2c9d67f4ee0 ]--- [ 24.333362] Kernel panic - not syncing: Fatal exception in interrupt [ 24.340698] Dumping ftrace buffer: [ 24.344209] (ftrace buffer empty) [ 24.347887] Kernel Offset: disabled [ 24.351483] Rebooting in 86400 seconds..