[....] Starting enhanced syslogd: rsyslogd[ 15.853335] audit: type=1400 audit(1520363203.656:5): avc: denied { syslog } for pid=3960 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: [ 18.393406] audit: type=1400 audit(1520363206.196:6): avc: denied { map } for pid=4098 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 '10.128.0.25' (ECDSA) to the list of known hosts. executing program [ 24.759633] audit: type=1400 audit(1520363212.562:7): avc: denied { map } for pid=4112 comm="syzkaller028148" path="/root/syzkaller028148556" 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 [ 24.764595] kasan: CONFIG_KASAN_INLINE enabled [ 24.790422] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 24.797794] general protection fault: 0000 [#1] SMP KASAN [ 24.803313] Dumping ftrace buffer: [ 24.806823] (ftrace buffer empty) [ 24.810503] Modules linked in: [ 24.813670] CPU: 0 PID: 4112 Comm: syzkaller028148 Not tainted 4.16.0-rc4+ #343 [ 24.821085] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.830416] RIP: 0010:rdma_init_qp_attr+0x8b/0x720 [ 24.835309] RSP: 0018:ffff8801c4aaf840 EFLAGS: 00010202 [ 24.840639] RAX: dffffc0000000000 RBX: ffff8801c84b5240 RCX: ffffffff841b86df [ 24.847879] RDX: 0000000000000029 RSI: ffff8801c4aaf9c8 RDI: 0000000000000148 [ 24.855118] RBP: ffff8801c4aaf880 R08: ffffed0038955f4e R09: ffff8801c4aaf9cc [ 24.862355] R10: 0000000000000000 R11: ffffed0038955f4d R12: ffff8801c4aaf9c8 [ 24.869593] R13: ffff8801c4aaf908 R14: 0000000000000000 R15: ffff8801c4aaf908 [ 24.876834] FS: 0000000001639880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 24.885032] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.890881] CR2: 00005563b7831110 CR3: 00000001c4b6c005 CR4: 00000000001606f0 [ 24.898123] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.905360] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.912597] Call Trace: [ 24.915164] ucma_init_qp_attr+0x20b/0x3e0 [ 24.919370] ? ucma_notify+0x1a0/0x1a0 [ 24.923230] ? find_held_lock+0x35/0x1d0 [ 24.927264] ? __might_fault+0x110/0x1d0 [ 24.931295] ? lock_downgrade+0x980/0x980 [ 24.935414] ? lock_release+0xa40/0xa40 [ 24.939357] ? check_same_owner+0x320/0x320 [ 24.943659] ? kasan_check_write+0x14/0x20 [ 24.947866] ucma_write+0x2d6/0x3d0 [ 24.951460] ? ucma_notify+0x1a0/0x1a0 [ 24.955318] ? ucma_resolve_route+0x1a0/0x1a0 [ 24.959784] ? ucma_resolve_route+0x1a0/0x1a0 [ 24.964249] __vfs_write+0xef/0x970 [ 24.967848] ? rcu_note_context_switch+0x710/0x710 [ 24.972745] ? kernel_read+0x120/0x120 [ 24.976613] ? __might_sleep+0x95/0x190 [ 24.980561] ? _cond_resched+0x14/0x30 [ 24.984418] ? __inode_security_revalidate+0xd9/0x130 [ 24.989577] ? avc_policy_seqno+0x9/0x20 [ 24.993615] ? selinux_file_permission+0x82/0x460 [ 24.998439] ? security_file_permission+0x89/0x1e0 [ 25.003339] ? rw_verify_area+0xe5/0x2b0 [ 25.007369] ? __fdget_raw+0x20/0x20 [ 25.011052] vfs_write+0x189/0x510 [ 25.014563] SyS_write+0xef/0x220 [ 25.017984] ? filp_open+0x70/0x70 [ 25.021494] ? SyS_read+0x220/0x220 [ 25.025094] ? do_syscall_64+0xb7/0x940 [ 25.029040] ? SyS_read+0x220/0x220 [ 25.032642] do_syscall_64+0x281/0x940 [ 25.036499] ? __do_page_fault+0xc90/0xc90 [ 25.040703] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 25.046217] ? syscall_return_slowpath+0x550/0x550 [ 25.051115] ? syscall_return_slowpath+0x2ac/0x550 [ 25.056023] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 25.061357] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 25.066171] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 25.071327] RIP: 0033:0x43fdc9 [ 25.074485] RSP: 002b:00007ffe18cbd8a8 EFLAGS: 00000217 ORIG_RAX: 0000000000000001 [ 25.082159] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fdc9 [ 25.089400] RDX: 0000000000000018 RSI: 0000000020000240 RDI: 0000000000000003 [ 25.096642] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 25.103879] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004016f0 [ 25.111118] R13: 0000000000401780 R14: 0000000000000000 R15: 0000000000000000 [ 25.118361] Code: 00 00 00 fc ff df 80 3c 02 00 0f 85 8c 06 00 00 4c 8b 33 48 b8 00 00 00 00 00 fc ff df 49 8d be 48 01 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 5d 06 00 00 44 0f b6 7d d4 48 b8 00 00 00 00 [ 25.137428] RIP: rdma_init_qp_attr+0x8b/0x720 RSP: ffff8801c4aaf840 [ 25.143854] ---[ end trace d5b388d0574e85e0 ]--- [ 25.148620] Kernel panic - not syncing: Fatal exception [ 25.154394] Dumping ftrace buffer: [ 25.157903] (ftrace buffer empty) [ 25.161580] Kernel Offset: disabled [ 25.165175] Rebooting in 86400 seconds..