[....] Starting enhanced syslogd: rsyslogd[ 11.006329] audit: type=1400 audit(1515301986.176:5): avc: denied { syslog } for pid=3312 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: [ 16.340649] audit: type=1400 audit(1515301991.510:6): avc: denied { map } for pid=3454 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 '10.128.0.5' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 executing program [ 42.384627] audit: type=1400 audit(1515302017.554:7): avc: denied { map } for pid=3472 comm="syzkaller815966" path="/root/syzkaller815966108" 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 [ 42.453845] audit: type=1400 audit(1515302017.623:8): avc: denied { map } for pid=3472 comm="syzkaller815966" path="/dev/usbmon0" dev="devtmpfs" ino=8977 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 [ 42.497418] page:ffffea0006fdc880 count:0 mapcount:0 mapping: (null) index:0x0 [ 42.505690] flags: 0x2fffc0000000000() [ 42.509648] raw: 02fffc0000000000 0000000000000000 0000000000000000 00000000ffffffff [ 42.517556] raw: ffffea0006fffaa0 ffffea0006fdc5e0 0000000000000000 0000000000000000 [ 42.525460] page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) <= 0) [ 42.532568] ------------[ cut here ]------------ [ 42.537293] kernel BUG at ./include/linux/mm.h:844! [ 42.542327] invalid opcode: 0000 [#1] SMP KASAN [ 42.546965] Dumping ftrace buffer: [ 42.550471] (ftrace buffer empty) [ 42.554148] Modules linked in: [ 42.557310] CPU: 0 PID: 3494 Comm: syzkaller815966 Not tainted 4.15.0-rc6-mm1+ #51 [ 42.564985] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.574316] RIP: 0010:mon_bin_vma_fault+0x1df/0x250 [ 42.579295] RSP: 0018:ffff8801c0aa7968 EFLAGS: 00010293 [ 42.584624] RAX: ffff8801bfb0c480 RBX: ffffea0006fdc880 RCX: ffffffff817ede5c [ 42.591885] RDX: 0000000000000000 RSI: ffff8801db41f6d8 RDI: ffffea0006fdc8b8 [ 42.599132] RBP: ffff8801c0aa7988 R08: 0000000000000000 R09: 0000000000000000 [ 42.606368] R10: ffff8801c0aa7aa0 R11: 0000000000000000 R12: ffff8801c0aa7a50 [ 42.613606] R13: ffffea0006fdc880 R14: ffffea0006fffaa0 R15: 1ffff10038154f3e [ 42.620848] FS: 00007f02dc9a3700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 42.629048] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.634908] CR2: 0000000020bc6ff4 CR3: 00000001c0ee5004 CR4: 00000000001606f0 [ 42.642160] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.649406] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.656645] Call Trace: [ 42.659204] __do_fault+0x8a/0x1d0 [ 42.662715] __handle_mm_fault+0x1c96/0x3210 [ 42.667091] ? __pmd_alloc+0x4e0/0x4e0 [ 42.670946] ? find_held_lock+0x35/0x1e0 [ 42.674980] handle_mm_fault+0x305/0x840 [ 42.679009] __get_user_pages+0x37e/0x1140 [ 42.683213] ? follow_page_mask+0x1430/0x1430 [ 42.687676] ? memset+0x31/0x40 [ 42.690922] populate_vma_page_range+0x18e/0x230 [ 42.695647] __mm_populate+0x204/0x350 [ 42.699501] ? populate_vma_page_range+0x230/0x230 [ 42.704399] vm_mmap_pgoff+0x1e1/0x1f0 [ 42.708257] ? vma_is_stack_for_current+0xa0/0xa0 [ 42.713072] ? __fget+0x22b/0x390 [ 42.716510] SyS_mmap_pgoff+0x423/0x580 [ 42.720451] ? find_mergeable_anon_vma+0x2a0/0x2a0 [ 42.725346] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 42.730331] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 42.735056] SyS_mmap+0x16/0x20 [ 42.738305] entry_SYSCALL_64_fastpath+0x23/0x9a [ 42.743026] RIP: 0033:0x44a2d9 [ 42.746182] RSP: 002b:00007f02dc9a2cd8 EFLAGS: 00000216 ORIG_RAX: 0000000000000009 [ 42.753855] RAX: ffffffffffffffda RBX: 00000000006dcc24 RCX: 000000000044a2d9 [ 42.761092] RDX: 0000000001000004 RSI: 0000000000004000 RDI: 0000000020ac6000 [ 42.768329] RBP: 00000000006dcc20 R08: 0000000000000017 R09: 0000000000000000 [ 42.775564] R10: 0000000000008011 R11: 0000000000000216 R12: 0000000000000000 [ 42.782800] R13: 00007ffeccee859f R14: 00007f02dc9a39c0 R15: 0000000000000007 [ 42.790044] Code: 5d c3 bb 02 00 00 00 e8 e0 ab e2 fd 89 d8 5b 41 5c 41 5d 41 5e 5d c3 e8 d0 ab e2 fd 48 c7 c6 c0 09 73 85 48 89 df e8 01 7f 03 fe <0f> 0b e8 ba ab e2 fd 49 8d 5e ff e9 51 ff ff ff e8 2c a0 0e fe [ 42.809101] RIP: mon_bin_vma_fault+0x1df/0x250 RSP: ffff8801c0aa7968 [ 42.815714] ---[ end trace 3123325e71c3d16b ]--- [ 42.820612] Kernel panic - not syncing: Fatal exception [ 42.826008] Dumping ftrace buffer: [ 42.829522] (ftrace buffer empty) [ 42.833199] Kernel Offset: disabled [ 42.836790] Rebooting in 86400 seconds..