[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 11.772361] audit: type=1400 audit(1515373758.217:6): avc: denied { map } for pid=3450 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.2' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 18.399551] audit: type=1400 audit(1515373764.844:7): avc: denied { map } for pid=3464 comm="syzkaller372941" path="/root/syzkaller372941097" 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 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 [ 18.431132] audit: type=1400 audit(1515373764.875:8): avc: denied { map } for pid=3465 comm="syzkaller372941" path="/dev/usbmon0" dev="devtmpfs" ino=1164 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 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 [ 18.638197] page:ffffea00072c6c00 count:0 mapcount:0 mapping: (null) index:0x0 [ 18.646423] flags: 0x2fffc0000000000() [ 18.650373] raw: 02fffc0000000000 0000000000000000 0000000000000000 00000000ffffffff [ 18.658314] raw: ffffea000705e460 ffffea00072c71a0 0000000000000000 0000000000000000 [ 18.666254] page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) <= 0) [ 18.673374] ------------[ cut here ]------------ [ 18.678105] kernel BUG at ./include/linux/mm.h:844! [ 18.683166] invalid opcode: 0000 [#1] SMP KASAN [ 18.687815] Dumping ftrace buffer: [ 18.691322] (ftrace buffer empty) [ 18.695010] Modules linked in: [ 18.698194] CPU: 0 PID: 3466 Comm: syzkaller372941 Not tainted 4.15.0-rc6-mm1+ #51 [ 18.705868] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.715212] RIP: 0010:mon_bin_vma_fault+0x1df/0x250 [ 18.720206] RSP: 0018:ffff8801c0777968 EFLAGS: 00010293 [ 18.725534] RAX: ffff8801c01e8700 RBX: ffffea00072c6c00 RCX: ffffffff817ede5c [ 18.732783] RDX: 0000000000000000 RSI: ffff8801db41f6d8 RDI: ffffea00072c6c38 [ 18.740024] RBP: ffff8801c0777988 R08: 0000000000000000 R09: 0000000000000000 [ 18.747266] R10: ffff8801c0777aa0 R11: 0000000000000000 R12: ffff8801c0777a50 [ 18.754511] R13: ffffea00072c6c00 R14: ffffea000705e460 R15: 1ffff100380eef3e [ 18.761749] FS: 00007feecb2df700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 18.769939] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.775787] CR2: 00000000208be000 CR3: 00000001c0a4d003 CR4: 00000000001606f0 [ 18.783025] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 18.790262] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 18.797497] Call Trace: [ 18.800070] __do_fault+0x8a/0x1d0 [ 18.803578] __handle_mm_fault+0x1c96/0x3210 [ 18.807963] ? __pmd_alloc+0x4e0/0x4e0 [ 18.811820] ? find_held_lock+0x35/0x1e0 [ 18.815855] handle_mm_fault+0x305/0x840 [ 18.819884] __get_user_pages+0x37e/0x1140 [ 18.824087] ? follow_page_mask+0x1430/0x1430 [ 18.828637] ? memset+0x31/0x40 [ 18.831893] populate_vma_page_range+0x18e/0x230 [ 18.836617] __mm_populate+0x204/0x350 [ 18.840471] ? populate_vma_page_range+0x230/0x230 [ 18.845372] vm_mmap_pgoff+0x1e1/0x1f0 [ 18.849227] ? vma_is_stack_for_current+0xa0/0xa0 [ 18.854043] ? __fget+0x22b/0x390 [ 18.857468] SyS_mmap_pgoff+0x423/0x580 [ 18.861410] ? find_mergeable_anon_vma+0x2a0/0x2a0 [ 18.866307] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 18.871300] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 18.876027] SyS_mmap+0x16/0x20 [ 18.879276] entry_SYSCALL_64_fastpath+0x23/0x9a [ 18.883997] RIP: 0033:0x4498c9 [ 18.887165] RSP: 002b:00007feecb2ded98 EFLAGS: 00000212 ORIG_RAX: 0000000000000009 [ 18.894847] RAX: ffffffffffffffda RBX: 00000000006dbc24 RCX: 00000000004498c9 [ 18.902084] RDX: 0000000001000004 RSI: 0000000000004000 RDI: 0000000020ac6000 [ 18.909323] RBP: 0000000000000000 R08: 0000000000000096 R09: 0000000000000000 [ 18.916568] R10: 0000000000008011 R11: 0000000000000212 R12: 00000000006dbc20 [ 18.923802] R13: 6273752f7665642f R14: 00007feecb2df9c0 R15: 0000000000000005 [ 18.931051] 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 [ 18.950114] RIP: mon_bin_vma_fault+0x1df/0x250 RSP: ffff8801c0777968 [ 18.956643] ---[ end trace 184f5d2145b995c2 ]--- [ 18.961543] Kernel panic - not syncing: Fatal exception [ 18.967338] Dumping ftrace buffer: [ 18.970852] (ftrace buffer empty) [ 18.974529] Kernel Offset: disabled [ 18.978122] Rebooting in 86400 seconds..