[?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. [ 12.278357] audit: type=1400 audit(1513407364.036:6): avc: denied { map } for pid=3126 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-upstream-kasan-gce-1,10.128.0.14' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 18.442111] audit: type=1400 audit(1513407370.199:7): avc: denied { map } for pid=3140 comm="syzkaller527095" path="/root/syzkaller527095760" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program [ 18.503287] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 18.618240] kasan: CONFIG_KASAN_INLINE enabled [ 18.622840] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 18.630176] general protection fault: 0000 [#1] SMP KASAN [ 18.635680] Dumping ftrace buffer: [ 18.639184] (ftrace buffer empty) [ 18.642858] Modules linked in: [ 18.646018] CPU: 1 PID: 3122 Comm: udevd Not tainted 4.15.0-rc3+ #223 [ 18.652561] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.661887] RIP: 0010:native_write_cr4+0x4/0x10 [ 18.666520] RSP: 0018:ffff8801db507ca8 EFLAGS: 00010006 [ 18.671849] RAX: ffff8801cde2e640 RBX: 00000000001606e0 RCX: ffffffff811a2a92 [ 18.679083] RDX: 0000000000010000 RSI: 0000000000000000 RDI: 00000000001606e0 [ 18.686318] RBP: ffff8801db507ca8 R08: 0000000000000000 R09: 0000000000000000 [ 18.693552] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000006 [ 18.700788] R13: ffff8801cde2e640 R14: ffff8801db514850 R15: ffff8801db514850 [ 18.708025] FS: 00007fc0feb717a0(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000 [ 18.716218] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.722064] CR2: 00007fc0feb77000 CR3: 00000001cfb84006 CR4: 00000000001626e0 [ 18.729299] Call Trace: [ 18.731849] [ 18.733967] hardware_disable+0x34a/0x4b0 [ 18.738081] ? irq_work_sync+0x1a0/0x1a0 [ 18.742110] ? lock_downgrade+0x980/0x980 [ 18.746231] ? kvm_io_bus_get_dev+0x2a0/0x2a0 [ 18.750691] kvm_arch_hardware_disable+0x35/0xd0 [ 18.755413] hardware_disable_nolock+0x30/0x40 [ 18.759963] flush_smp_call_function_queue+0x1f4/0x570 [ 18.765206] ? cpumask_weight+0x40/0x40 [ 18.769149] ? tick_program_event+0x83/0x100 [ 18.773528] ? __lock_is_held+0xb6/0x140 [ 18.777560] generic_smp_call_function_single_interrupt+0x13/0x30 [ 18.783758] smp_call_function_single_interrupt+0x103/0x640 [ 18.789433] ? smp_call_function_interrupt+0x640/0x640 [ 18.794673] ? _raw_spin_lock+0x32/0x40 [ 18.798626] ? handle_edge_irq+0x2b4/0x7c0 [ 18.802829] ? task_prio+0x40/0x40 [ 18.806339] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 18.811154] call_function_single_interrupt+0x9d/0xb0 [ 18.816305] [ 18.818511] RIP: 0010:qlist_free_all+0xa9/0x160 [ 18.823143] RSP: 0018:ffff8801cdda7ba8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff04 [ 18.830817] RAX: 0000000000000007 RBX: 0000000000000282 RCX: 0000000000000006 [ 18.838054] RDX: 0000000000000000 RSI: ffff8801cde2eeb0 RDI: 0000000000000282 [ 18.845290] RBP: ffff8801cdda7be0 R08: 0000000000000000 R09: 0000000000000000 [ 18.852524] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 18.859757] R13: ffff8801db21a780 R14: ffff8801c7770c40 R15: ffffffff85ec82a0 [ 18.867009] quarantine_reduce+0x141/0x170 [ 18.871213] kasan_kmalloc+0xca/0xe0 [ 18.874894] kasan_slab_alloc+0x12/0x20 [ 18.878833] kmem_cache_alloc+0x11b/0x760 [ 18.882944] ? lock_release+0xa40/0xa40 [ 18.886884] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 18.892736] getname_flags+0xcb/0x580 [ 18.896505] ? mntput_no_expire+0x15e/0xa90 [ 18.900796] user_path_at_empty+0x2d/0x50 [ 18.904914] vfs_statx+0xe9/0x190 [ 18.908336] ? vfs_statx_fd+0x90/0x90 [ 18.912101] ? getname_flags+0x256/0x580 [ 18.916132] SYSC_newstat+0x87/0xf0 [ 18.919724] ? cp_new_stat+0xa40/0xa40 [ 18.923580] ? SyS_readlinkat+0x3b0/0x3b0 [ 18.927693] ? entry_SYSCALL_64_fastpath+0x5/0x96 [ 18.932505] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 18.937485] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 18.942210] SyS_newstat+0x1d/0x30 [ 18.945718] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 18.950439] RIP: 0033:0x7fc0fe278c65 [ 18.954116] RSP: 002b:00007ffde01c4ac8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004 [ 18.961795] RAX: ffffffffffffffda RBX: 00000000009fe980 RCX: 00007fc0fe278c65 [ 18.969030] RDX: 00007ffde01c4ae0 RSI: 00007ffde01c4ae0 RDI: 00007ffde01c4f70 [ 18.976265] RBP: 0000000000000000 R08: 000000000041f4f1 R09: 00007fc0fe2cf7d0 [ 18.983502] R10: 7665642f7379732f R11: 0000000000000246 R12: 00000000ffffffff [ 18.990738] R13: 00000000009fe980 R14: 0000000000000006 R15: 0000000000000ae8 [ 18.997984] 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 [ 19.017073] RIP: native_write_cr4+0x4/0x10 RSP: ffff8801db507ca8 [ 19.023185] ---[ end trace 72d76a6ccd31e6e3 ]--- [ 19.027906] Kernel panic - not syncing: Fatal exception in interrupt [ 19.034742] Dumping ftrace buffer: [ 19.038249] (ftrace buffer empty) [ 19.041925] Kernel Offset: disabled [ 19.045516] Rebooting in 86400 seconds..