[....] Starting enhanced syslogd: rsyslogd[ 11.768308] audit: type=1400 audit(1513978503.993:5): avc: denied { syslog } for pid=2993 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: [ 17.127046] audit: type=1400 audit(1513978509.351:6): avc: denied { map } for pid=3134 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-4,10.128.0.19' (ECDSA) to the list of known hosts. executing program executing program executing program [ 23.379713] audit: type=1400 audit(1513978515.604:7): avc: denied { map } for pid=3148 comm="syzkaller843661" path="/root/syzkaller843661936" 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.695073] BUG: unable to handle kernel paging request at fffffffffffffff5 [ 27.702221] IP: devpts_mntget+0x13f/0x280 [ 27.706348] PGD 6425067 P4D 6425067 PUD 6427067 PMD 0 [ 27.711609] Oops: 0000 [#1] SMP KASAN [ 27.715383] Dumping ftrace buffer: [ 27.718891] (ftrace buffer empty) [ 27.722571] Modules linked in: [ 27.725736] CPU: 0 PID: 3151 Comm: syzkaller843661 Not tainted 4.15.0-rc4-mm1+ #49 [ 27.733410] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.742838] RIP: 0010:devpts_mntget+0x13f/0x280 [ 27.747474] RSP: 0018:ffff8801c9fa7a50 EFLAGS: 00010246 [ 27.752807] RAX: dffffc0000000000 RBX: ffffffffffffffed RCX: ffffffff81d37b30 [ 27.760045] RDX: 1ffffffffffffffe RSI: 0000000000000001 RDI: fffffffffffffff5 [ 27.767284] RBP: ffff8801c9fa7ae0 R08: ffff8801db224d00 R09: 1ffff100393f4f05 [ 27.774523] R10: ffff8801c9fa74e8 R11: 0000000000000000 R12: 1ffff100393f4f4a [ 27.781762] R13: ffff8801c9fa7a70 R14: ffff8801c22d2c00 R15: ffff8801c9fa7b20 [ 27.789004] FS: 00007f3a5e37a700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 27.797197] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.803047] CR2: fffffffffffffff5 CR3: 00000001c9e6f005 CR4: 00000000001606f0 [ 27.810288] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.817528] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.824781] Call Trace: [ 27.827353] ? devpts_fill_super+0xad0/0xad0 [ 27.831729] ? __alloc_fd+0x750/0x750 [ 27.835518] ptm_open_peer+0x11a/0x2f0 [ 27.839391] ? pty_unix98_install+0xa30/0xa30 [ 27.843876] tty_ioctl+0x517/0x1610 [ 27.847477] ? tty_vhangup+0x30/0x30 [ 27.851164] ? __lock_is_held+0xb6/0x140 [ 27.855232] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 27.861092] ? rcu_note_context_switch+0x710/0x710 [ 27.866005] ? tty_vhangup+0x30/0x30 [ 27.869688] do_vfs_ioctl+0x1b1/0x1520 [ 27.873543] ? _cond_resched+0x14/0x30 [ 27.877407] ? ioctl_preallocate+0x2b0/0x2b0 [ 27.881793] ? selinux_capable+0x40/0x40 [ 27.885832] ? SyS_futex+0x269/0x390 [ 27.889535] ? security_file_ioctl+0x89/0xb0 [ 27.893921] SyS_ioctl+0x8f/0xc0 [ 27.897266] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 27.901989] RIP: 0033:0x445619 [ 27.905148] RSP: 002b:00007f3a5e379da8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 27.912826] RAX: ffffffffffffffda RBX: 00000000006dac54 RCX: 0000000000445619 [ 27.920065] RDX: 0000000000000000 RSI: 0000000000005441 RDI: 0000000000000292 [ 27.927306] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 27.934552] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dac50 [ 27.941791] R13: 6d74702f7665642f R14: 00007f3a5e37a9c0 R15: 0000000000000005 [ 27.949054] Code: 01 00 00 48 8b 5d 90 e8 90 b8 9c ff 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 24 01 00 00 <4c> 8b 7b 08 48 b8 00 00 00 00 00 fc ff df 49 8d bf 80 06 00 00 [ 27.968236] RIP: devpts_mntget+0x13f/0x280 RSP: ffff8801c9fa7a50 [ 27.974348] CR2: fffffffffffffff5 [ 27.977775] ---[ end trace 6e60c4b715f85f6e ]--- [ 27.982499] Kernel panic - not syncing: Fatal exception [ 27.988372] Dumping ftrace buffer: [ 27.991884] (ftrace buffer empty) [ 27.995571] Kernel Offset: disabled [ 27.999171] Rebooting in 86400 seconds..