[?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. [ 19.017639] audit: type=1400 audit(1520974190.214:6): avc: denied { map } for pid=4241 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 '10.128.0.58' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 25.312491] audit: type=1400 audit(1520974196.509:7): avc: denied { map } for pid=4255 comm="syzkaller613168" path="/root/syzkaller613168137" 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 [ 30.687108] kasan: CONFIG_KASAN_INLINE enabled [ 30.691797] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 30.699171] general protection fault: 0000 [#1] SMP KASAN [ 30.704689] Dumping ftrace buffer: [ 30.708212] (ftrace buffer empty) [ 30.711892] Modules linked in: [ 30.715056] CPU: 1 PID: 4255 Comm: syzkaller613168 Not tainted 4.16.0-rc5+ #262 [ 30.722469] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.731803] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 30.736874] RSP: 0018:ffff8801af827c78 EFLAGS: 00010206 [ 30.742206] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845ff6f4 [ 30.749454] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 30.756703] RBP: ffff8801af827c90 R08: 0000000000000000 R09: 1ffff10035f04f0b [ 30.763948] R10: ffff8801af827820 R11: 0000000000000001 R12: ffff8801b16597d2 [ 30.771189] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801af827d08 [ 30.778429] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000095ab840 [ 30.786622] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 30.792478] CR2: ffffffffff600400 CR3: 00000001afe53004 CR4: 00000000001606e0 [ 30.799733] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.806985] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.814228] Call Trace: [ 30.816799] smc_shutdown+0x3ed/0x540 [ 30.820579] SyS_shutdown+0x137/0x290 [ 30.824356] ? SyS_getsockopt+0x340/0x340 [ 30.828487] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 30.833993] ? do_fast_syscall_32+0x156/0xf9f [ 30.838461] ? SyS_getsockopt+0x340/0x340 [ 30.842580] do_fast_syscall_32+0x3ec/0xf9f [ 30.846873] ? do_int80_syscall_32+0x9c0/0x9c0 [ 30.851423] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.856151] ? syscall_return_slowpath+0x550/0x550 [ 30.861048] ? syscall_return_slowpath+0x2ac/0x550 [ 30.865952] ? prepare_exit_to_usermode+0x350/0x350 [ 30.870948] ? sysret32_from_system_call+0x5/0x3c [ 30.875779] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.880592] entry_SYSENTER_compat+0x70/0x7f [ 30.884972] RIP: 0023:0xf7f76c99 [ 30.888307] RSP: 002b:00000000ffab204c EFLAGS: 00000217 ORIG_RAX: 0000000000000175 [ 30.895989] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 30.903229] RDX: 0000000000000000 RSI: 000000000000016b RDI: 0000000000000003 [ 30.910472] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 30.917721] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 30.924970] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 30.932219] 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 [ 30.951291] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801af827c78 [ 30.957920] ---[ end trace 285c18b624818786 ]--- [ 30.962673] Kernel panic - not syncing: Fatal exception [ 30.968420] Dumping ftrace buffer: [ 30.971935] (ftrace buffer empty) [ 30.975615] Kernel Offset: disabled [ 30.979213] Rebooting in 86400 seconds..