[....] Starting enhanced syslogd: rsyslogd[ 12.054421] audit: type=1400 audit(1513107144.965:5): 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: [ 39.055831] audit: type=1400 audit(1513107171.966:6): avc: denied { map } for pid=3140 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-3,10.128.0.42' (ECDSA) to the list of known hosts. executing program [ 45.174675] audit: type=1400 audit(1513107178.085:7): avc: denied { map } for pid=3152 comm="syzkaller474186" path="/root/syzkaller474186958" 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 [ 45.178453] BUG: unable to handle kernel paging request at fffffbfff1a68635 [ 45.178466] IP: show_timer+0x1c7/0x2b0 [ 45.178468] PGD 21ffd3067 P4D 21ffd3067 PUD 21ffd2067 PMD 0 [ 45.178477] Oops: 0000 [#1] SMP KASAN [ 45.178482] Dumping ftrace buffer: [ 45.178485] (ftrace buffer empty) [ 45.178487] Modules linked in: [ 45.178492] CPU: 1 PID: 3152 Comm: syzkaller474186 Not tainted 4.15.0-rc3+ #218 [ 45.178495] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.178499] RIP: 0010:show_timer+0x1c7/0x2b0 [ 45.178501] RSP: 0018:ffff8801c576f9e0 EFLAGS: 00010806 [ 45.178505] RAX: dffffc0000000000 RBX: ffff8801c51f0e00 RCX: ffffffff81cd0efe [ 45.178507] RDX: 1ffffffff1a68635 RSI: ffffffff85f1a680 RDI: ffffffff8d3431a8 [ 45.178509] RBP: ffff8801c576fa10 R08: ffffed0038a0f50d R09: ffffed0038a0f50d [ 45.178511] R10: ffff8801c58ca080 R11: ffffed0038a0f50c R12: 0000000001000001 [ 45.178514] R13: ffff8801c55d8ac0 R14: ffffffff85342260 R15: 0000000000000c50 [ 45.178517] FS: 00000000025c5880(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000 [ 45.178519] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.178521] CR2: fffffbfff1a68635 CR3: 00000001c51ff000 CR4: 00000000001406e0 [ 45.178526] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.178528] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.178529] Call Trace: [ 45.178534] ? timers_start+0x14c/0x1c0 [ 45.178541] traverse+0x248/0xa00 [ 45.178549] ? seq_hlist_next+0xc0/0xc0 [ 45.178558] seq_read+0x96a/0x13d0 [ 45.178569] ? seq_lseek+0x3c0/0x3c0 [ 45.178574] ? selinux_file_permission+0x82/0x460 [ 45.178581] ? security_file_permission+0x89/0x1f0 [ 45.178589] ? rw_verify_area+0xe5/0x2b0 [ 45.178596] do_iter_read+0x3db/0x5b0 [ 45.178601] ? dup_iter+0x260/0x260 [ 45.178609] vfs_readv+0x121/0x1c0 [ 45.178615] ? compat_rw_copy_check_uvector+0x2e0/0x2e0 [ 45.178622] ? mm_fault_error+0x2c0/0x2c0 [ 45.178627] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 45.178634] ? fget_raw+0x20/0x20 [ 45.178639] ? do_page_fault+0xee/0x720 [ 45.178648] ? kasan_check_write+0x14/0x20 [ 45.178652] ? _copy_from_user+0x99/0x110 [ 45.178659] do_preadv+0x11b/0x1a0 [ 45.178662] ? do_preadv+0x11b/0x1a0 [ 45.178673] SyS_preadv+0x30/0x40 [ 45.178680] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 45.178683] RIP: 0033:0x440159 [ 45.178685] RSP: 002b:00007ffd7b4ee8e8 EFLAGS: 00000217 ORIG_RAX: 0000000000000127 [ 45.178689] RAX: ffffffffffffffda RBX: 00007ffd7b4ee8f0 RCX: 0000000000440159 [ 45.178691] RDX: 0000000000000001 RSI: 00000000205e2ff0 RDI: 0000000000000003 [ 45.178693] RBP: 0000000000000000 R08: 65732f636f72702f R09: 65732f636f72702f [ 45.178695] R10: 0001000000000000 R11: 0000000000000217 R12: 0000000000401a20 [ 45.178697] R13: 0000000000401ab0 R14: 0000000000000000 R15: 0000000000000000 [ 45.178706] 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 [ 45.178772] RIP: show_timer+0x1c7/0x2b0 RSP: ffff8801c576f9e0 [ 45.178774] CR2: fffffbfff1a68635 [ 45.178780] ---[ end trace 12305c6d07255c83 ]--- [ 45.178782] Kernel panic - not syncing: Fatal exception [ 45.200564] Dumping ftrace buffer: [ 45.200567] (ftrace buffer empty) [ 45.200569] Kernel Offset: disabled [ 45.517744] Rebooting in 86400 seconds..