[....] Starting enhanced syslogd: rsyslogd[ 12.380991] audit: type=1400 audit(1512685099.266:5): avc: denied { syslog } for pid=2991 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: [ 23.410389] audit: type=1400 audit(1512685110.296:6): 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-3,10.128.0.5' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 29.700863] audit: type=1400 audit(1512685116.586:7): avc: denied { map } for pid=3147 comm="syzkaller217798" path="/root/syzkaller217798400" 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 [ 29.794456] BUG: unable to handle kernel paging request at fffffbfff1a6863e [ 29.801567] IP: show_timer+0x1c7/0x2b0 [ 29.805423] PGD 21ffd3067 P4D 21ffd3067 PUD 21ffd2067 PMD 0 [ 29.811194] Oops: 0000 [#1] SMP KASAN [ 29.814963] Dumping ftrace buffer: [ 29.818467] (ftrace buffer empty) [ 29.822142] Modules linked in: [ 29.825304] CPU: 0 PID: 3193 Comm: syzkaller217798 Not tainted 4.15.0-rc2+ #212 [ 29.832713] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.842035] RIP: 0010:show_timer+0x1c7/0x2b0 [ 29.846408] RSP: 0018:ffff8801c5aa79e0 EFLAGS: 00010802 [ 29.851736] RAX: dffffc0000000000 RBX: ffff8801c5390e00 RCX: ffffffff81cd11fe [ 29.858972] RDX: 1ffffffff1a6863e RSI: ffffffff85f1a720 RDI: ffffffff8d3431f0 [ 29.866209] RBP: ffff8801c5aa7a10 R08: ffffed0038999c2d R09: ffffed0038999c2d [ 29.873444] R10: ffff8801c55ac200 R11: ffffed0038999c2c R12: 0000000001000002 [ 29.880681] R13: ffff8801c588e140 R14: ffffffff853422a0 R15: 0000000000000c51 [ 29.887917] FS: 00007fccf7617700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 29.896108] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.901957] CR2: fffffbfff1a6863e CR3: 00000001c6317000 CR4: 00000000001406f0 [ 29.909194] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.916431] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.923665] Call Trace: [ 29.926216] ? timers_start+0x14c/0x1c0 [ 29.930161] traverse+0x248/0xa00 [ 29.933589] ? seq_hlist_next+0xc0/0xc0 [ 29.937535] seq_read+0x96a/0x13d0 [ 29.941052] ? seq_lseek+0x3c0/0x3c0 [ 29.944734] ? selinux_file_permission+0x82/0x460 [ 29.950066] ? security_file_permission+0x89/0x1f0 [ 29.954971] ? rw_verify_area+0xe5/0x2b0 [ 29.959001] do_iter_read+0x3db/0x5b0 [ 29.962768] ? dup_iter+0x260/0x260 [ 29.966369] vfs_readv+0x121/0x1c0 [ 29.969875] ? lock_downgrade+0x980/0x980 [ 29.973989] ? compat_rw_copy_check_uvector+0x2e0/0x2e0 [ 29.979327] ? fget_raw+0x20/0x20 [ 29.982748] ? do_page_fault+0xee/0x720 [ 29.986696] ? lockdep_sys_exit+0x47/0xf0 [ 29.991246] ? syscall_return_slowpath+0x2ad/0x550 [ 29.998141] do_preadv+0x11b/0x1a0 [ 30.002862] ? do_preadv+0x11b/0x1a0 [ 30.006545] SyS_preadv+0x30/0x40 [ 30.009970] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 30.014695] RIP: 0033:0x445919 [ 30.017850] RSP: 002b:00007fccf7616d38 EFLAGS: 00000246 ORIG_RAX: 0000000000000127 [ 30.025525] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000445919 [ 30.032761] RDX: 0000000000000004 RSI: 0000000020f40000 RDI: 0000000000000004 [ 30.039996] RBP: 0000000000000000 R08: 00007fccf7617700 R09: 0000000000000000 [ 30.047234] R10: 0000000002000004 R11: 0000000000000246 R12: 0000000000000000 [ 30.054471] R13: 00007ffe6be4851f R14: 00007fccf76179c0 R15: 0000000000000000 [ 30.061718] Code: 89 c7 4c 0f 44 f1 41 83 e4 fb 4d 63 e4 e8 12 26 a3 ff 4a 8d 3c e5 e0 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 e0 31 34 85 4c 89 ef [ 30.080818] RIP: show_timer+0x1c7/0x2b0 RSP: ffff8801c5aa79e0 [ 30.086667] CR2: fffffbfff1a6863e [ 30.090091] ---[ end trace 3ade8c1895b6bfb8 ]--- [ 30.094809] Kernel panic - not syncing: Fatal exception [ 31.172840] Shutting down cpus with NMI [ 31.177263] Dumping ftrace buffer: [ 31.180769] (ftrace buffer empty) [ 31.184446] Kernel Offset: disabled [ 31.188040] Rebooting in 86400 seconds..