[....] Starting enhanced syslogd: rsyslogd[ 12.735400] audit: type=1400 audit(1513446542.963:5): avc: denied { syslog } for pid=2991 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: [ 17.353125] audit: type=1400 audit(1513446547.580:6): avc: denied { map } for pid=3131 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-mmots-kasan-gce-6,10.128.0.13' (ECDSA) to the list of known hosts. executing program executing program [ 30.200760] audit: type=1400 audit(1513446560.428:7): avc: denied { map } for pid=3147 comm="syzkaller266651" path="/root/syzkaller266651809" 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 [ 30.239130] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 30.370385] kasan: CONFIG_KASAN_INLINE enabled [ 30.375031] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 30.382372] general protection fault: 0000 [#1] SMP KASAN [ 30.387877] Dumping ftrace buffer: [ 30.391383] (ftrace buffer empty) [ 30.395060] Modules linked in: [ 30.398219] CPU: 0 PID: 3126 Comm: udevd Not tainted 4.15.0-rc2-mm1+ #39 [ 30.405020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.414351] RIP: 0010:native_write_cr4+0x4/0x10 [ 30.418981] RSP: 0018:ffff8801db207ca8 EFLAGS: 00010006 [ 30.424307] RAX: ffff8801c8b0c140 RBX: 00000000001606f0 RCX: ffffffff811a2d22 [ 30.431544] RDX: 0000000000010000 RSI: 0000000000000000 RDI: 00000000001606f0 [ 30.438781] RBP: ffff8801db207ca8 R08: ffff8801d991ac40 R09: 0000000000000000 [ 30.446014] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000006 [ 30.453251] R13: ffff8801c8b0c140 R14: ffff8801db21a130 R15: ffff8801db21a130 [ 30.460490] FS: 00007f6aac2327a0(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 30.468681] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.474528] CR2: 00007f6aac239000 CR3: 00000001c7529005 CR4: 00000000001626f0 [ 30.481767] Call Trace: [ 30.484314] [ 30.486436] hardware_disable+0x34a/0x4b0 [ 30.490552] ? irq_work_sync+0x1a0/0x1a0 [ 30.494584] ? kvm_io_bus_get_dev+0x2a0/0x2a0 [ 30.499045] kvm_arch_hardware_disable+0x35/0xd0 [ 30.503775] hardware_disable_nolock+0x30/0x40 [ 30.508324] flush_smp_call_function_queue+0x1f4/0x570 [ 30.513568] ? cpumask_weight+0x40/0x40 [ 30.517510] ? rcu_idle_exit+0x410/0x410 [ 30.521542] ? __lock_is_held+0xbc/0x140 [ 30.525573] generic_smp_call_function_single_interrupt+0x13/0x30 [ 30.531770] smp_call_function_single_interrupt+0x103/0x640 [ 30.537445] ? smp_call_function_interrupt+0x640/0x640 [ 30.542688] ? _raw_spin_lock+0x32/0x40 [ 30.546629] ? _raw_spin_unlock+0x22/0x30 [ 30.550743] ? handle_edge_irq+0x2b4/0x7c0 [ 30.554948] ? task_prio+0x40/0x40 [ 30.558461] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.563271] call_function_single_interrupt+0xa9/0xb0 [ 30.568424] [ 30.570638] RIP: 0010:qlist_free_all+0x41/0x160 [ 30.575282] RSP: 0018:ffff8801c8b77828 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff04 [ 30.582953] RAX: ffff8801c44ecac0 RBX: 0000000000000282 RCX: 0000000000000000 [ 30.590190] RDX: 0000000000000000 RSI: ffffea00071149df RDI: 0000000000000282 [ 30.597427] RBP: ffff8801c8b77860 R08: ffff8801d991ac40 R09: 0000000000000000 [ 30.604662] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 30.611896] R13: ffff8801dac001c0 R14: ffff8801c46f1080 R15: ffffffff862cb980 [ 30.619144] quarantine_reduce+0x141/0x170 [ 30.623345] kasan_kmalloc+0xca/0xe0 [ 30.627026] kasan_slab_alloc+0x12/0x20 [ 30.630968] kmem_cache_alloc+0x11b/0x760 [ 30.635084] ? lock_release+0xda0/0xda0 [ 30.639029] get_empty_filp+0xfb/0x4f0 [ 30.642883] ? proc_nr_files+0x60/0x60 [ 30.646738] ? __lock_is_held+0xbc/0x140 [ 30.650771] ? unwind_get_return_address+0x61/0xa0 [ 30.655671] path_openat+0xed/0x3530 [ 30.659353] ? lock_downgrade+0x980/0x980 [ 30.663467] ? path_lookupat+0xba0/0xba0 [ 30.667492] ? getname+0x19/0x20 [ 30.670823] ? do_sys_open+0x2e7/0x6d0 [ 30.674679] ? lock_release+0xda0/0xda0 [ 30.678622] ? do_raw_spin_trylock+0x190/0x190 [ 30.683168] ? __lock_is_held+0xbc/0x140 [ 30.687199] ? _raw_spin_unlock+0x22/0x30 [ 30.691315] ? __alloc_fd+0x29b/0x750 [ 30.695085] do_filp_open+0x25b/0x3b0 [ 30.698849] ? may_open_dev+0xe0/0xe0 [ 30.702618] ? strncpy_from_user+0x323/0x430 [ 30.706993] ? mpi_resize+0x200/0x200 [ 30.710762] ? get_unused_fd_flags+0x121/0x190 [ 30.715310] ? getname_flags+0x256/0x580 [ 30.719340] do_sys_open+0x502/0x6d0 [ 30.723017] ? do_sys_open+0x502/0x6d0 [ 30.726872] ? filp_open+0x70/0x70 [ 30.730375] ? entry_SYSCALL_64_fastpath+0x5/0x96 [ 30.735182] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 30.740165] SyS_open+0x2d/0x40 [ 30.743410] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 30.748128] RIP: 0033:0x7f6aab93a120 [ 30.751804] RSP: 002b:00007ffdbb5ed3f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 30.759478] RAX: ffffffffffffffda RBX: 00000000016c8fe0 RCX: 00007f6aab93a120 [ 30.766715] RDX: 0000000000000124 RSI: 00000000000a0241 RDI: 00007ffdbb5ed410 [ 30.773949] RBP: 0000000000000000 R08: 00007ffdbb5ecfd0 R09: 00007f6aab990760 [ 30.781183] R10: 6564752f6e75722f R11: 0000000000000246 R12: 00000000ffffffff [ 30.788419] R13: 0000000001538030 R14: 00007ffdbb5ed040 R15: 0000000000000001 [ 30.795660] 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 [ 30.814720] RIP: native_write_cr4+0x4/0x10 RSP: ffff8801db207ca8 [ 30.820834] ---[ end trace 0dfec3eaf83766a1 ]--- [ 30.825552] Kernel panic - not syncing: Fatal exception in interrupt [ 30.832299] Dumping ftrace buffer: [ 30.836681] (ftrace buffer empty) [ 30.840971] Kernel Offset: disabled [ 30.844566] Rebooting in 86400 seconds..