[....] Starting enhanced syslogd: rsyslogd[ 17.207848] audit: type=1400 audit(1521112009.990:5): avc: denied { syslog } for pid=4073 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: [ 23.137372] audit: type=1400 audit(1521112015.920:6): avc: denied { map } for pid=4212 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 '10.128.0.32' (ECDSA) to the list of known hosts. executing program [ 29.537824] audit: type=1400 audit(1521112022.320:7): avc: denied { map } for pid=4226 comm="syzkaller039701" path="/root/syzkaller039701835" 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 [ 34.784140] kasan: CONFIG_KASAN_INLINE enabled [ 34.788881] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 34.796272] general protection fault: 0000 [#1] SMP KASAN [ 34.801790] Dumping ftrace buffer: [ 34.805310] (ftrace buffer empty) [ 34.808990] Modules linked in: [ 34.812155] CPU: 1 PID: 4226 Comm: syzkaller039701 Not tainted 4.16.0-rc5+ #264 [ 34.819568] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.828903] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 34.833974] RSP: 0018:ffff8801b94efc78 EFLAGS: 00010206 [ 34.839308] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845ff6f4 [ 34.846555] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 34.853798] RBP: ffff8801b94efc90 R08: 0000000000000000 R09: 1ffff1003729df0b [ 34.861039] R10: ffff8801b94ef820 R11: 0000000000000001 R12: ffff8801b0f377d2 [ 34.868280] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801b94efd08 [ 34.875520] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:0000000009b74840 [ 34.883717] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 34.889571] CR2: 00007fbe93eb8000 CR3: 00000001b3ea5001 CR4: 00000000001606e0 [ 34.896821] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.904059] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.911301] Call Trace: [ 34.913868] smc_shutdown+0x3ed/0x540 [ 34.917643] SyS_shutdown+0x137/0x290 [ 34.921423] ? SyS_getsockopt+0x340/0x340 [ 34.925633] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 34.931145] ? do_fast_syscall_32+0x156/0xf9f [ 34.935614] ? SyS_getsockopt+0x340/0x340 [ 34.939734] do_fast_syscall_32+0x3ec/0xf9f [ 34.944030] ? do_int80_syscall_32+0x9c0/0x9c0 [ 34.948583] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 34.954177] ? syscall_return_slowpath+0x550/0x550 [ 34.959077] ? syscall_return_slowpath+0x2ac/0x550 [ 34.963993] ? sysret32_from_system_call+0x5/0x3c [ 34.968811] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 34.973635] entry_SYSENTER_compat+0x70/0x7f [ 34.978013] RIP: 0023:0xf7f85c99 [ 34.981345] RSP: 002b:00000000ffb002dc EFLAGS: 00000217 ORIG_RAX: 0000000000000175 [ 34.989022] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 34.996260] RDX: 0000000000000000 RSI: 000000000000016b RDI: 0000000000000003 [ 35.003517] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 35.010756] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 35.018616] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 35.025868] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 ac 20 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 [ 35.045110] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801b94efc78 [ 35.051724] ---[ end trace aa26231dc83186ee ]--- [ 35.056468] Kernel panic - not syncing: Fatal exception [ 35.062293] Dumping ftrace buffer: [ 35.065813] (ftrace buffer empty) [ 35.069497] Kernel Offset: disabled [ 35.073184] Rebooting in 86400 seconds..