[....] Starting enhanced syslogd: rsyslogd[ 11.073008] audit: type=1400 audit(1514895294.214:5): avc: denied { syslog } for pid=3324 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 mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] 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: [ 16.019563] audit: type=1400 audit(1514895299.161:6): avc: denied { map } for pid=3463 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 '10.128.0.30' (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 [ 22.185304] audit: type=1400 audit(1514895305.327:7): avc: denied { map } for pid=3477 comm="syzkaller633895" path="/root/syzkaller633895130" 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 [ 22.211232] audit: type=1400 audit(1514895305.334:8): avc: denied { map } for pid=3477 comm="syzkaller633895" path="/dev/usbmon0" dev="devtmpfs" ino=1125 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 [ 22.290701] page:ffffea0006fbc080 count:0 mapcount:0 mapping: (null) index:0x0 [ 22.298991] flags: 0x2fffc0000000000() [ 22.303096] raw: 02fffc0000000000 0000000000000000 0000000000000000 00000000ffffffff [ 22.311046] raw: ffffea0006fb7e60 ffffea0007215760 0000000000000000 0000000000000000 [ 22.318926] page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) <= 0) [ 22.326029] ------------[ cut here ]------------ [ 22.330753] kernel BUG at ./include/linux/mm.h:844! [ 22.335793] invalid opcode: 0000 [#1] SMP KASAN [ 22.340448] Dumping ftrace buffer: [ 22.343956] (ftrace buffer empty) [ 22.347646] Modules linked in: [ 22.350808] CPU: 0 PID: 3478 Comm: syzkaller633895 Not tainted 4.15.0-rc6-next-20180102+ #86 [ 22.359346] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 22.368690] RIP: 0010:mon_bin_vma_fault+0x1df/0x250 [ 22.373673] RSP: 0018:ffff8801be7ff968 EFLAGS: 00010293 [ 22.379009] RAX: ffff8801be1ae5c0 RBX: ffffea0006fbc080 RCX: ffffffff817edb5c [ 22.386246] RDX: 0000000000000000 RSI: ffff8801be1aee38 RDI: ffffea0006fbc0b8 [ 22.393480] RBP: ffff8801be7ff988 R08: 0000000000000000 R09: 0000000000000000 [ 22.400727] R10: ffff8801be7ffaa0 R11: 0000000000000000 R12: ffff8801be7ffa50 [ 22.407964] R13: ffffea0006fbc080 R14: ffffea0006fb7e60 R15: 1ffff10037cfff3e [ 22.415210] FS: 00007f35b67ac700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 22.423400] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.429246] CR2: 00000000208be000 CR3: 00000001be339003 CR4: 00000000001606f0 [ 22.436490] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.443735] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.450970] Call Trace: [ 22.453527] __do_fault+0x8a/0x1d0 [ 22.457033] __handle_mm_fault+0x1c96/0x3210 [ 22.461407] ? __pmd_alloc+0x4e0/0x4e0 [ 22.465264] ? find_held_lock+0x35/0x1e0 [ 22.469298] handle_mm_fault+0x305/0x840 [ 22.473327] __get_user_pages+0x37e/0x1140 [ 22.477539] ? follow_page_mask+0x1430/0x1430 [ 22.482000] ? memset+0x31/0x40 [ 22.485247] populate_vma_page_range+0x18e/0x230 [ 22.489970] __mm_populate+0x204/0x350 [ 22.493825] ? populate_vma_page_range+0x230/0x230 [ 22.498723] vm_mmap_pgoff+0x1e1/0x1f0 [ 22.502577] ? vma_is_stack_for_current+0xa0/0xa0 [ 22.507389] ? __fget+0x22b/0x390 [ 22.510811] SyS_mmap_pgoff+0x423/0x580 [ 22.514753] ? find_mergeable_anon_vma+0x2a0/0x2a0 [ 22.519656] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 22.524638] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 22.529361] SyS_mmap+0x16/0x20 [ 22.532612] entry_SYSCALL_64_fastpath+0x23/0x9a [ 22.537334] RIP: 0033:0x4498c9 [ 22.540489] RSP: 002b:00007f35b67abcd8 EFLAGS: 00000216 ORIG_RAX: 0000000000000009 [ 22.548160] RAX: ffffffffffffffda RBX: 00000000006dac24 RCX: 00000000004498c9 [ 22.555395] RDX: 0000000001000004 RSI: 0000000000004000 RDI: 0000000020ac6000 [ 22.562628] RBP: 00000000006dac20 R08: 0000000000000046 R09: 0000000000000000 [ 22.569868] R10: 0000000000008011 R11: 0000000000000216 R12: 0000000000000000 [ 22.577110] R13: 00007ffdfa0e377f R14: 00007f35b67ac9c0 R15: 0000000000000009 [ 22.584351] 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 [ 22.603416] RIP: mon_bin_vma_fault+0x1df/0x250 RSP: ffff8801be7ff968 [ 22.609947] ---[ end trace 03c23e305ca4df37 ]--- [ 22.614708] Kernel panic - not syncing: Fatal exception [ 22.620069] Dumping ftrace buffer: [ 22.623577] (ftrace buffer empty) [ 22.627255] Kernel Offset: disabled [ 22.630846] Rebooting in 86400 seconds..