[....] Starting enhanced syslogd: rsyslogd[ 17.767068] audit: type=1400 audit(1520665645.523:5): avc: denied { syslog } for pid=4132 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 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: [ 22.286216] audit: type=1400 audit(1520665650.043:6): avc: denied { map } for pid=4272 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 '10.128.0.62' (ECDSA) to the list of known hosts. executing program [ 28.594786] audit: type=1400 audit(1520665656.351:7): avc: denied { map } for pid=4286 comm="syzkaller326301" path="/root/syzkaller326301165" 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 [ 33.761213] kasan: CONFIG_KASAN_INLINE enabled [ 33.766075] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 33.773494] general protection fault: 0000 [#1] SMP KASAN [ 33.779021] Dumping ftrace buffer: [ 33.782542] (ftrace buffer empty) [ 33.786223] Modules linked in: [ 33.789388] CPU: 0 PID: 4286 Comm: syzkaller326301 Not tainted 4.16.0-rc4+ #347 [ 33.796802] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.806133] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 33.811203] RSP: 0018:ffff8801afc0fcc8 EFLAGS: 00010206 [ 33.816536] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fd6f4 [ 33.823790] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 33.831035] RBP: ffff8801afc0fce0 R08: 0000000000000000 R09: 1ffff10035f81f15 [ 33.838279] R10: ffff8801afc0f870 R11: 0000000000000001 R12: ffff8801b346a7d2 [ 33.845524] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801afc0fd58 [ 33.852776] FS: 00000000020bb880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 33.860983] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.866837] CR2: 000000000193ba60 CR3: 00000001b0fbc004 CR4: 00000000001606f0 [ 33.874081] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.881330] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.888573] Call Trace: [ 33.891138] smc_shutdown+0x3ed/0x540 [ 33.894916] SyS_shutdown+0x137/0x290 [ 33.898689] ? SyS_getsockopt+0x340/0x340 [ 33.902823] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 33.908338] ? do_syscall_64+0xb7/0x940 [ 33.912288] ? SyS_getsockopt+0x340/0x340 [ 33.916408] do_syscall_64+0x281/0x940 [ 33.920276] ? __do_page_fault+0xc90/0xc90 [ 33.924481] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 33.929211] ? syscall_return_slowpath+0x550/0x550 [ 33.934113] ? syscall_return_slowpath+0x2ac/0x550 [ 33.939019] ? prepare_exit_to_usermode+0x350/0x350 [ 33.944027] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 33.949372] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.954193] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 33.959352] RIP: 0033:0x43fcb9 [ 33.962510] RSP: 002b:00007ffc2e59b998 EFLAGS: 00000217 ORIG_RAX: 0000000000000030 [ 33.970187] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcb9 [ 33.977434] RDX: 000000000043fcb9 RSI: 0000000000000000 RDI: 0000000000000003 [ 33.984680] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 33.991924] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004015e0 [ 33.999165] R13: 0000000000401670 R14: 0000000000000000 R15: 0000000000000000 [ 34.006414] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 5c 2f 11 fd 48 8d 7b 28 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 32 4c 8b 63 28 48 b8 00 00 00 00 00 fc ff df 49 [ 34.025483] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801afc0fcc8 [ 34.032090] ---[ end trace 626f153a48943a33 ]--- [ 34.036881] Kernel panic - not syncing: Fatal exception [ 34.042707] Dumping ftrace buffer: [ 34.046218] (ftrace buffer empty) [ 34.049899] Kernel Offset: disabled [ 34.053495] Rebooting in 86400 seconds..