[....] Starting enhanced syslogd: rsyslogd[ 10.281203] audit: type=1400 audit(1515353115.755:5): avc: denied { syslog } for pid=3311 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: [ 12.339807] audit: type=1400 audit(1515353117.814:6): avc: denied { map } for pid=3451 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 '10.128.0.16' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program [ 30.839881] audit: type=1400 audit(1515353136.314:7): avc: denied { map } for pid=3469 comm="syzkaller321996" path="/root/syzkaller321996667" 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 [ 30.865874] audit: type=1400 audit(1515353136.322:8): avc: denied { map } for pid=3469 comm="syzkaller321996" path="/dev/usbmon0" dev="devtmpfs" ino=8998 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 [ 30.926094] page:ffffea000701f900 count:0 mapcount:0 mapping: (null) index:0x0 [ 30.934307] flags: 0x2fffc0000000000() [ 30.938210] raw: 02fffc0000000000 0000000000000000 0000000000000000 00000000ffffffff [ 30.946099] raw: ffffea0006ff48e0 ffffea00070001e0 0000000000000000 0000000000000000 [ 30.953989] page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) <= 0) [ 30.961105] ------------[ cut here ]------------ [ 30.965832] kernel BUG at ./include/linux/mm.h:844! [ 30.970866] invalid opcode: 0000 [#1] SMP KASAN [ 30.975502] Dumping ftrace buffer: [ 30.979016] (ftrace buffer empty) [ 30.982705] Modules linked in: [ 30.985867] CPU: 1 PID: 3470 Comm: syzkaller321996 Not tainted 4.15.0-rc6-mm1+ #51 [ 30.993540] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.002872] RIP: 0010:mon_bin_vma_fault+0x1df/0x250 [ 31.007852] RSP: 0018:ffff8801bfe97968 EFLAGS: 00010293 [ 31.013180] RAX: ffff8801bfd28680 RBX: ffffea000701f900 RCX: ffffffff817ede5c [ 31.020589] RDX: 0000000000000000 RSI: ffff8801db51f6d8 RDI: ffffea000701f938 [ 31.027824] RBP: ffff8801bfe97988 R08: 0000000000000000 R09: 0000000000000000 [ 31.035060] R10: ffff8801bfe97aa0 R11: 0000000000000000 R12: ffff8801bfe97a50 [ 31.042295] R13: ffffea000701f900 R14: ffffea0006ff48e0 R15: 1ffff10037fd2f3e [ 31.049535] FS: 00007fc6f0093700(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000 [ 31.057733] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 31.063582] CR2: 00000000208be000 CR3: 00000001cadda001 CR4: 00000000001606e0 [ 31.070821] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 31.078055] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 31.085288] Call Trace: [ 31.087847] __do_fault+0x8a/0x1d0 [ 31.091366] __handle_mm_fault+0x1c96/0x3210 [ 31.095745] ? __pmd_alloc+0x4e0/0x4e0 [ 31.099599] ? find_held_lock+0x35/0x1e0 [ 31.103635] handle_mm_fault+0x305/0x840 [ 31.107663] __get_user_pages+0x37e/0x1140 [ 31.111867] ? follow_page_mask+0x1430/0x1430 [ 31.116333] ? memset+0x31/0x40 [ 31.119590] populate_vma_page_range+0x18e/0x230 [ 31.124311] __mm_populate+0x204/0x350 [ 31.128163] ? populate_vma_page_range+0x230/0x230 [ 31.133059] vm_mmap_pgoff+0x1e1/0x1f0 [ 31.136913] ? vma_is_stack_for_current+0xa0/0xa0 [ 31.141724] ? __fget+0x22b/0x390 [ 31.145146] SyS_mmap_pgoff+0x423/0x580 [ 31.149087] ? find_mergeable_anon_vma+0x2a0/0x2a0 [ 31.153988] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 31.158987] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 31.163713] SyS_mmap+0x16/0x20 [ 31.166960] entry_SYSCALL_64_fastpath+0x23/0x9a [ 31.171680] RIP: 0033:0x449229 [ 31.174833] RSP: 002b:00007fc6f0092d98 EFLAGS: 00000212 ORIG_RAX: 0000000000000009 [ 31.182504] RAX: ffffffffffffffda RBX: 00000000006dac24 RCX: 0000000000449229 [ 31.189740] RDX: 0000000001000004 RSI: 0000000000004000 RDI: 0000000020ac6000 [ 31.196976] RBP: 0000000000000000 R08: 000000000000000f R09: 0000000000000000 [ 31.204213] R10: 0000000000008011 R11: 0000000000000212 R12: 00000000006dac20 [ 31.211456] R13: 6273752f7665642f R14: 00007fc6f00939c0 R15: 0000000000000005 [ 31.218696] 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 [ 31.237781] RIP: mon_bin_vma_fault+0x1df/0x250 RSP: ffff8801bfe97968 [ 31.244287] ---[ end trace d69bb56053b0cde8 ]--- [ 31.249029] Kernel panic - not syncing: Fatal exception [ 31.254819] Dumping ftrace buffer: [ 31.258327] (ftrace buffer empty) [ 31.262002] Kernel Offset: disabled [ 31.265592] Rebooting in 86400 seconds..