[?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. [ 18.398441] audit: type=1400 audit(1521448554.689:6): 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.4' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 24.696063] audit: type=1400 audit(1521448560.986:7): avc: denied { map } for pid=4226 comm="syzkaller566736" path="/root/syzkaller566736349" 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 [ 30.175553] kasan: CONFIG_KASAN_INLINE enabled [ 30.180305] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 30.187731] general protection fault: 0000 [#1] SMP KASAN [ 30.193260] Dumping ftrace buffer: [ 30.196773] (ftrace buffer empty) [ 30.200459] Modules linked in: [ 30.203626] CPU: 1 PID: 4226 Comm: syzkaller566736 Not tainted 4.16.0-rc5+ #268 [ 30.211045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.220386] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 30.225454] RSP: 0018:ffff8801d03d7c78 EFLAGS: 00010206 [ 30.230794] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845ff6f4 [ 30.238038] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 30.245285] RBP: ffff8801d03d7c90 R08: 0000000000000000 R09: 1ffff1003a07af0b [ 30.252530] R10: ffff8801d03d7820 R11: 0000000000000001 R12: ffff8801b456a7d2 [ 30.259776] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801d03d7d08 [ 30.267020] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:0000000009053840 [ 30.275217] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 30.281075] CR2: 0000000000d22718 CR3: 00000001b2a0e005 CR4: 00000000001606e0 [ 30.288342] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.295600] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.302857] Call Trace: [ 30.305420] smc_shutdown+0x3ed/0x540 [ 30.309196] SyS_shutdown+0x137/0x290 [ 30.312979] ? SyS_getsockopt+0x340/0x340 [ 30.317110] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 30.322618] ? do_fast_syscall_32+0x156/0xf9f [ 30.327165] ? SyS_getsockopt+0x340/0x340 [ 30.331301] do_fast_syscall_32+0x3ec/0xf9f [ 30.335607] ? do_int80_syscall_32+0x9c0/0x9c0 [ 30.340161] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.344888] ? syscall_return_slowpath+0x550/0x550 [ 30.349790] ? syscall_return_slowpath+0x2ac/0x550 [ 30.354690] ? prepare_exit_to_usermode+0x350/0x350 [ 30.359681] ? sysret32_from_system_call+0x5/0x3c [ 30.364497] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.369312] entry_SYSENTER_compat+0x70/0x7f [ 30.373691] RIP: 0023:0xf7fdac99 [ 30.377024] RSP: 002b:00000000ffb79b9c EFLAGS: 00000217 ORIG_RAX: 0000000000000175 [ 30.384703] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 30.392030] RDX: 0000000000000000 RSI: 000000000000016b RDI: 0000000000000003 [ 30.399270] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 30.406516] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 30.413756] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 30.421013] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 2c 21 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 [ 30.440093] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801d03d7c78 [ 30.446702] ---[ end trace ac01215b35ddb0c1 ]--- [ 30.451441] Kernel panic - not syncing: Fatal exception [ 30.457169] Dumping ftrace buffer: [ 30.460682] (ftrace buffer empty) [ 30.464364] Kernel Offset: disabled [ 30.467965] Rebooting in 86400 seconds..