[?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. [ 12.361389] audit: type=1400 audit(1515316582.702:6): avc: denied { map } for pid=3449 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 '10.128.15.235' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 38.862475] audit: type=1400 audit(1515316609.203:7): avc: denied { map } for pid=3468 comm="syzkaller418429" path="/root/syzkaller418429402" 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 [ 38.888738] audit: type=1400 audit(1515316609.212:8): avc: denied { map } for pid=3468 comm="syzkaller418429" path="/dev/usbmon0" dev="devtmpfs" ino=8976 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 [ 38.925894] page:ffffea0006ff6780 count:0 mapcount:0 mapping: (null) index:0x0 [ 38.934138] flags: 0x2fffc0000000000() [ 38.938153] raw: 02fffc0000000000 0000000000000000 0000000000000000 00000000ffffffff [ 38.946061] raw: ffffea0006fe3360 ffffea0007049020 0000000000000000 0000000000000000 [ 38.953953] page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) <= 0) [ 38.961087] ------------[ cut here ]------------ [ 38.965815] kernel BUG at ./include/linux/mm.h:844! [ 38.970872] invalid opcode: 0000 [#1] SMP KASAN [ 38.975515] Dumping ftrace buffer: [ 38.979027] (ftrace buffer empty) [ 38.982712] Modules linked in: [ 38.985874] CPU: 0 PID: 3469 Comm: syzkaller418429 Not tainted 4.15.0-rc6-mm1+ #51 [ 38.993545] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.002876] RIP: 0010:mon_bin_vma_fault+0x1df/0x250 [ 39.007857] RSP: 0018:ffff8801bff97968 EFLAGS: 00010293 [ 39.013197] RAX: ffff8801c012c5c0 RBX: ffffea0006ff6780 RCX: ffffffff817ede5c [ 39.020436] RDX: 0000000000000000 RSI: ffff8801c012ce38 RDI: ffffea0006ff67b8 [ 39.027675] RBP: ffff8801bff97988 R08: 0000000000000000 R09: 0000000000000000 [ 39.034911] R10: ffff8801bff97aa0 R11: 0000000000000000 R12: ffff8801bff97a50 [ 39.042148] R13: ffffea0006ff6780 R14: ffffea0006fe3360 R15: 1ffff10037ff2f3e [ 39.049387] FS: 00007fd560ce8700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 39.057589] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.063439] CR2: 00000000208be000 CR3: 00000001c0b32006 CR4: 00000000001606f0 [ 39.070679] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.077924] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.085172] Call Trace: [ 39.087736] __do_fault+0x8a/0x1d0 [ 39.091244] __handle_mm_fault+0x1c96/0x3210 [ 39.095622] ? __pmd_alloc+0x4e0/0x4e0 [ 39.099476] ? find_held_lock+0x35/0x1e0 [ 39.103526] handle_mm_fault+0x305/0x840 [ 39.107556] __get_user_pages+0x37e/0x1140 [ 39.111772] ? follow_page_mask+0x1430/0x1430 [ 39.116235] ? memset+0x31/0x40 [ 39.119486] populate_vma_page_range+0x18e/0x230 [ 39.124211] __mm_populate+0x204/0x350 [ 39.128067] ? populate_vma_page_range+0x230/0x230 [ 39.132980] vm_mmap_pgoff+0x1e1/0x1f0 [ 39.136837] ? vma_is_stack_for_current+0xa0/0xa0 [ 39.141649] ? __fget+0x22b/0x390 [ 39.145071] SyS_mmap_pgoff+0x423/0x580 [ 39.149013] ? find_mergeable_anon_vma+0x2a0/0x2a0 [ 39.153922] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 39.158907] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 39.163632] SyS_mmap+0x16/0x20 [ 39.166883] entry_SYSCALL_64_fastpath+0x23/0x9a [ 39.171605] RIP: 0033:0x449269 [ 39.174762] RSP: 002b:00007fd560ce7d98 EFLAGS: 00000212 ORIG_RAX: 0000000000000009 [ 39.182437] RAX: ffffffffffffffda RBX: 00000000006dac24 RCX: 0000000000449269 [ 39.189678] RDX: 0000000001000004 RSI: 0000000000004000 RDI: 0000000020ac6000 [ 39.196916] RBP: 00000000006dac20 R08: 000000000000000e R09: 0000000000000000 [ 39.204159] R10: 0000000000008011 R11: 0000000000000212 R12: 0030656c69662f2e [ 39.211399] R13: 6273752f7665642f R14: 00303636396f7369 R15: 0000000000000005 [ 39.218653] 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 [ 39.237803] RIP: mon_bin_vma_fault+0x1df/0x250 RSP: ffff8801bff97968 [ 39.245034] ---[ end trace f116f09312df4490 ]--- [ 39.249782] Kernel panic - not syncing: Fatal exception [ 39.255489] Dumping ftrace buffer: [ 39.259011] (ftrace buffer empty) [ 39.262699] Kernel Offset: disabled [ 39.266292] Rebooting in 86400 seconds..