[....] Starting enhanced syslogd: rsyslogd[ 11.389655] audit: type=1400 audit(1513990128.193:5): avc: denied { syslog } for pid=2994 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: [ 17.234971] audit: type=1400 audit(1513990134.038:6): avc: denied { map } for pid=3133 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-kasan-gce-7,10.128.0.52' (ECDSA) to the list of known hosts. [ 23.468334] audit: type=1400 audit(1513990140.272:7): avc: denied { map } for pid=3147 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 2017/12/23 00:49:00 parsed 1 programs 2017/12/23 00:49:00 executed programs: 0 [ 23.589574] audit: type=1400 audit(1513990140.393:8): avc: denied { map } for pid=3147 comm="syz-execprog" path="/root/syzkaller-shm834003543" 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 [ 26.264628] BUG: unable to handle kernel paging request at fffffffffffffff5 [ 26.271808] IP: devpts_mntget+0x13f/0x280 [ 26.275946] PGD 5e25067 P4D 5e25067 PUD 5e27067 PMD 0 [ 26.281215] Oops: 0000 [#1] SMP KASAN [ 26.284984] Dumping ftrace buffer: [ 26.288492] (ftrace buffer empty) [ 26.292170] Modules linked in: [ 26.295331] CPU: 1 PID: 4768 Comm: syz-executor4 Not tainted 4.15.0-rc4+ #234 [ 26.302573] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.311902] RIP: 0010:devpts_mntget+0x13f/0x280 [ 26.316535] RSP: 0018:ffff8801c2dcfa50 EFLAGS: 00010246 [ 26.321866] RAX: dffffc0000000000 RBX: ffffffffffffffed RCX: ffffffff81d22440 [ 26.329104] RDX: 1ffffffffffffffe RSI: 0000000000000001 RDI: fffffffffffffff5 [ 26.336342] RBP: ffff8801c2dcfae0 R08: 0000000000000000 R09: 1ffff100385b9f05 [ 26.344118] R10: ffff8801c2dcf760 R11: 0000000000000000 R12: 1ffff100385b9f4a [ 26.351353] R13: ffff8801c2dcfa70 R14: ffff8801c3bbde80 R15: ffff8801c2dcfb20 [ 26.358589] FS: 00007f601d6be700(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000 [ 26.366780] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.372629] CR2: fffffffffffffff5 CR3: 00000001c2f00003 CR4: 00000000001606e0 [ 26.379878] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.387121] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.394359] Call Trace: [ 26.396917] ? devpts_fill_super+0xad0/0xad0 [ 26.401290] ? __alloc_fd+0x750/0x750 [ 26.405064] ptm_open_peer+0x11a/0x2f0 [ 26.408919] ? pty_unix98_install+0xa30/0xa30 [ 26.413383] tty_ioctl+0x517/0x1610 [ 26.416979] ? tty_vhangup+0x30/0x30 [ 26.420662] ? __lock_is_held+0xb6/0x140 [ 26.424700] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 26.430548] ? trace_hardirqs_on+0xd/0x10 [ 26.434665] ? _raw_spin_unlock_irq+0x27/0x70 [ 26.439126] ? rcu_note_context_switch+0x710/0x710 [ 26.444034] ? tty_vhangup+0x30/0x30 [ 26.447725] do_vfs_ioctl+0x1b1/0x1520 [ 26.451577] ? _cond_resched+0x14/0x30 [ 26.455433] ? ioctl_preallocate+0x2b0/0x2b0 [ 26.459814] ? selinux_capable+0x40/0x40 [ 26.463843] ? SyS_futex+0x269/0x390 [ 26.467528] ? security_file_ioctl+0x89/0xb0 [ 26.471906] SyS_ioctl+0x8f/0xc0 [ 26.475242] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 26.479963] RIP: 0033:0x452ac9 [ 26.483119] RSP: 002b:00007f601d6bdc58 EFLAGS: 00000212 ORIG_RAX: 0000000000000010 [ 26.490810] RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 0000000000452ac9 [ 26.498044] RDX: 0000000000000003 RSI: 0000000000005441 RDI: 0000000000000003 [ 26.505281] RBP: 00000000000005d3 R08: 0000000000000000 R09: 0000000000000000 [ 26.512529] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f5c68 [ 26.519769] R13: 00000000ffffffff R14: 00007f601d6be6d4 R15: 0000000000000000 [ 26.527038] Code: 01 00 00 48 8b 5d 90 e8 50 c5 9d 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 [ 26.546145] RIP: devpts_mntget+0x13f/0x280 RSP: ffff8801c2dcfa50 [ 26.552264] CR2: fffffffffffffff5 [ 26.555689] ---[ end trace b9526be47cc65f08 ]--- [ 26.560408] Kernel panic - not syncing: Fatal exception [ 26.566289] Dumping ftrace buffer: [ 26.569808] (ftrace buffer empty) [ 26.573486] Kernel Offset: disabled [ 26.577081] Rebooting in 86400 seconds..