[....] Starting enhanced syslogd: rsyslogd[ 12.459559] audit: type=1400 audit(1513081987.249:5): avc: denied { syslog } for pid=2992 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: [ 33.701720] audit: type=1400 audit(1513082008.491:6): avc: denied { map } for pid=3138 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-386-2,10.128.15.229' (ECDSA) to the list of known hosts. executing program [ 39.766914] audit: type=1400 audit(1513082014.556:7): avc: denied { map } for pid=3151 comm="syzkaller944084" path="/root/syzkaller944084929" 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 [ 39.770825] BUG: unable to handle kernel paging request at fffffbfff1a68635 [ 39.770837] IP: show_timer+0x1c7/0x2b0 [ 39.770838] PGD 21ffd3067 P4D 21ffd3067 PUD 21ffd2067 PMD 0 [ 39.770846] Oops: 0000 [#1] SMP KASAN [ 39.770851] Dumping ftrace buffer: [ 39.770854] (ftrace buffer empty) [ 39.770856] Modules linked in: [ 39.770861] CPU: 1 PID: 3151 Comm: syzkaller944084 Not tainted 4.15.0-rc3+ #128 [ 39.770864] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.770868] RIP: 0010:show_timer+0x1c7/0x2b0 [ 39.770870] RSP: 0018:ffff8801c4f07840 EFLAGS: 00010806 [ 39.770873] RAX: dffffc0000000000 RBX: ffff8801c7aafe00 RCX: ffffffff81cd0efe [ 39.770876] RDX: 1ffffffff1a68635 RSI: ffffffff85f1a680 RDI: ffffffff8d3431a8 [ 39.770878] RBP: ffff8801c4f07870 R08: ffffed00389bb08d R09: ffffed00389bb08d [ 39.770880] R10: ffff8801c53bc3c0 R11: ffffed00389bb08c R12: 0000000001000001 [ 39.770882] R13: ffff8801c53f62c0 R14: ffffffff85342260 R15: 0000000000000c4f [ 39.770885] FS: 0000000000000000(0000) GS:ffff8801db500000(0063) knlGS:0000000009028840 [ 39.770888] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 39.770890] CR2: fffffbfff1a68635 CR3: 00000001c5422000 CR4: 00000000001406e0 [ 39.770895] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.770897] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.770898] Call Trace: [ 39.770902] ? timers_start+0x14c/0x1c0 [ 39.770909] traverse+0x248/0xa00 [ 39.770917] ? seq_hlist_next+0xc0/0xc0 [ 39.770926] seq_read+0x96a/0x13d0 [ 39.770937] ? seq_lseek+0x3c0/0x3c0 [ 39.770943] ? selinux_file_permission+0x82/0x460 [ 39.770950] ? security_file_permission+0x89/0x1f0 [ 39.770958] ? rw_verify_area+0xe5/0x2b0 [ 39.770964] do_iter_read+0x3db/0x5b0 [ 39.770970] ? iov_iter_get_pages+0x1150/0x1150 [ 39.770979] compat_readv+0x1bf/0x270 [ 39.770985] ? vfs_iter_read+0xb0/0xb0 [ 39.770994] ? fget_raw+0x20/0x20 [ 39.771004] ? down_read_trylock+0xdb/0x170 [ 39.771009] ? __do_page_fault+0x32d/0xc90 [ 39.771015] ? __handle_mm_fault+0x3e20/0x3e20 [ 39.771020] ? vmacache_find+0x5f/0x280 [ 39.771031] do_compat_preadv64+0xdc/0x100 [ 39.771035] ? do_compat_preadv64+0xdc/0x100 [ 39.771041] compat_SyS_preadv+0x3b/0x50 [ 39.771045] ? compat_SyS_preadv64+0x40/0x40 [ 39.771052] do_fast_syscall_32+0x3ee/0xf9d [ 39.771059] ? do_int80_syscall_32+0x9d0/0x9d0 [ 39.771063] ? kasan_check_read+0x11/0x20 [ 39.771068] ? syscall_return_slowpath+0x550/0x550 [ 39.771074] ? SyS_rt_sigaction+0x94/0x1b0 [ 39.771079] ? lockdep_sys_exit+0x47/0xf0 [ 39.771084] ? retint_user+0x18/0x18 [ 39.771090] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.771098] entry_SYSENTER_compat+0x51/0x60 [ 39.771101] RIP: 0023:0xf7fb8c79 [ 39.771102] RSP: 002b:00000000ffd529ec EFLAGS: 00000286 ORIG_RAX: 000000000000014d [ 39.771106] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000205e2ff0 [ 39.771108] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000010000 [ 39.771110] RBP: 000000002006bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 39.771112] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 39.771114] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 39.771123] Code: 89 c7 4c 0f 44 f1 41 83 e4 fb 4d 63 e4 e8 12 26 a3 ff 4a 8d 3c e5 a0 31 34 85 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 a2 00 00 00 4a 8b 14 e5 a0 31 34 85 4c 89 ef [ 39.771189] RIP: show_timer+0x1c7/0x2b0 RSP: ffff8801c4f07840 [ 39.771190] CR2: fffffbfff1a68635 [ 39.771196] ---[ end trace 8e50367f08f0dbc8 ]--- [ 39.771199] Kernel panic - not syncing: Fatal exception [ 39.793124] Dumping ftrace buffer: [ 39.793126] (ftrace buffer empty) [ 39.793128] Kernel Offset: disabled [ 40.145533] Rebooting in 86400 seconds..