[ 10.894943] audit: type=1400 audit(1514932540.930:5): avc: denied { syslog } for pid=3313 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 16.697791] audit: type=1400 audit(1514932546.733:6): avc: denied { map } for pid=3455 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 '10.128.0.45' (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 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 [ 28.544408] audit: type=1400 audit(1514932558.580:7): avc: denied { map } for pid=3471 comm="syzkaller185656" path="/root/syzkaller185656125" 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 [ 28.570783] audit: type=1400 audit(1514932558.580:8): avc: denied { map } for pid=3471 comm="syzkaller185656" path="/dev/usbmon0" dev="devtmpfs" ino=115 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:usbmon_device_t:s0 tclass=chr_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 [ 28.677667] page:ffffea00070584c0 count:0 mapcount:0 mapping: (null) index:0x0 [ 28.685963] flags: 0x2fffc0000000000() [ 28.690148] raw: 02fffc0000000000 0000000000000000 0000000000000000 00000000ffffffff [ 28.698047] raw: ffffea000704ad60 ffffea0007065920 0000000000000000 0000000000000000 [ 28.705932] page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) <= 0) [ 28.713033] ------------[ cut here ]------------ [ 28.717755] kernel BUG at ./include/linux/mm.h:844! [ 28.722772] invalid opcode: 0000 [#1] SMP KASAN [ 28.727409] Dumping ftrace buffer: [ 28.730913] (ftrace buffer empty) [ 28.734600] Modules linked in: [ 28.737764] CPU: 0 PID: 3472 Comm: syzkaller185656 Not tainted 4.15.0-rc6-next-20180102+ #86 [ 28.746312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.755646] RIP: 0010:mon_bin_vma_fault+0x1df/0x250 [ 28.760628] RSP: 0018:ffff8801c0eff968 EFLAGS: 00010293 [ 28.765957] RAX: ffff8801c0eee500 RBX: ffffea00070584c0 RCX: ffffffff817edb5c [ 28.773195] RDX: 0000000000000000 RSI: ffff8801c0eeed78 RDI: ffffea00070584f8 [ 28.780430] RBP: ffff8801c0eff988 R08: 0000000000000000 R09: 0000000000000000 [ 28.787666] R10: ffff8801c0effaa0 R11: 0000000000000000 R12: ffff8801c0effa50 [ 28.794898] R13: ffffea00070584c0 R14: ffffea000704ad60 R15: 1ffff100381dff3e [ 28.802136] FS: 00007f8107570700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 28.810328] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.816174] CR2: 00000000208be000 CR3: 00000001c0ef3003 CR4: 00000000001606f0 [ 28.823412] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.830646] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.837890] Call Trace: [ 28.840452] __do_fault+0x8a/0x1d0 [ 28.843957] __handle_mm_fault+0x1c96/0x3210 [ 28.848340] ? __pmd_alloc+0x4e0/0x4e0 [ 28.852195] ? find_held_lock+0x35/0x1e0 [ 28.856230] handle_mm_fault+0x305/0x840 [ 28.860257] __get_user_pages+0x37e/0x1140 [ 28.864457] ? follow_page_mask+0x1430/0x1430 [ 28.868917] ? memset+0x31/0x40 [ 28.872162] populate_vma_page_range+0x18e/0x230 [ 28.876882] __mm_populate+0x204/0x350 [ 28.880734] ? populate_vma_page_range+0x230/0x230 [ 28.885633] vm_mmap_pgoff+0x1e1/0x1f0 [ 28.889486] ? vma_is_stack_for_current+0xa0/0xa0 [ 28.894304] ? __fget+0x22b/0x390 [ 28.897725] SyS_mmap_pgoff+0x423/0x580 [ 28.901665] ? find_mergeable_anon_vma+0x2a0/0x2a0 [ 28.906559] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 28.911541] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 28.916267] SyS_mmap+0x16/0x20 [ 28.919517] entry_SYSCALL_64_fastpath+0x23/0x9a [ 28.924240] RIP: 0033:0x449709 [ 28.927393] RSP: 002b:00007f810756fcd8 EFLAGS: 00000216 ORIG_RAX: 0000000000000009 [ 28.935066] RAX: ffffffffffffffda RBX: 00000000006dac24 RCX: 0000000000449709 [ 28.942304] RDX: 0000000001000004 RSI: 0000000000004000 RDI: 0000000020ac6000 [ 28.949540] RBP: 00000000006dac20 R08: 0000000000000080 R09: 0000000000000000 [ 28.956774] R10: 0000000000008011 R11: 0000000000000216 R12: 0000000000000000 [ 28.964008] R13: 00007fffa483382f R14: 00007f81075709c0 R15: 0000000000000005 [ 28.971248] Code: 5d c3 bb 02 00 00 00 e8 30 ca e2 fd 89 d8 5b 41 5c 41 5d 41 5e 5d c3 e8 20 ca e2 fd 48 c7 c6 00 09 73 85 48 89 df e8 21 9b 03 fe <0f> 0b e8 0a ca e2 fd 49 8d 5e ff e9 51 ff ff ff e8 9c ab 0e fe [ 28.990305] RIP: mon_bin_vma_fault+0x1df/0x250 RSP: ffff8801c0eff968 [ 28.996837] ---[ end trace 36b382a0d080eca6 ]--- [ 29.001595] Kernel panic - not syncing: Fatal exception [ 29.007284] Dumping ftrace buffer: [ 29.010798] (ftrace buffer empty) [ 29.014478] Kernel Offset: disabled [ 29.018071] Rebooting in 86400 seconds..