[?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. [ 18.644146] audit: type=1400 audit(1521186938.392:6): avc: denied { map } for pid=4222 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 '10.128.0.63' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 25.014058] audit: type=1400 audit(1521186944.762:7): avc: denied { map } for pid=4236 comm="syzkaller502990" path="/root/syzkaller502990055" 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 [ 30.176121] kasan: CONFIG_KASAN_INLINE enabled [ 30.180811] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 30.188451] general protection fault: 0000 [#1] SMP KASAN [ 30.193962] Dumping ftrace buffer: [ 30.197474] (ftrace buffer empty) [ 30.201157] Modules linked in: [ 30.204322] CPU: 1 PID: 4236 Comm: syzkaller502990 Not tainted 4.16.0-rc5+ #265 [ 30.211737] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.221069] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 30.226140] RSP: 0018:ffff8801b0487c78 EFLAGS: 00010206 [ 30.231471] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845ff6f4 [ 30.238712] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 30.245954] RBP: ffff8801b0487c90 R08: 0000000000000000 R09: 1ffff10036090f0b [ 30.253194] R10: ffff8801b0487820 R11: 0000000000000001 R12: ffff8801b1b887d2 [ 30.260443] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801b0487d08 [ 30.267696] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:0000000008755840 [ 30.275899] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 30.281755] CR2: 00000000021d6fd0 CR3: 00000001b9b82001 CR4: 00000000001606e0 [ 30.289000] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.296241] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.303484] Call Trace: [ 30.306048] smc_shutdown+0x3ed/0x540 [ 30.309823] SyS_shutdown+0x137/0x290 [ 30.313596] ? SyS_getsockopt+0x340/0x340 [ 30.317721] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 30.323229] ? do_fast_syscall_32+0x156/0xf9f [ 30.327708] ? SyS_getsockopt+0x340/0x340 [ 30.331827] do_fast_syscall_32+0x3ec/0xf9f [ 30.336121] ? do_int80_syscall_32+0x9c0/0x9c0 [ 30.340672] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.345397] ? syscall_return_slowpath+0x550/0x550 [ 30.350297] ? syscall_return_slowpath+0x2ac/0x550 [ 30.355195] ? prepare_exit_to_usermode+0x350/0x350 [ 30.360183] ? sysret32_from_system_call+0x5/0x3c [ 30.364998] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.369851] entry_SYSENTER_compat+0x70/0x7f [ 30.374238] RIP: 0023:0xf7f1fc99 [ 30.377583] RSP: 002b:00000000ffa1d73c EFLAGS: 00000217 ORIG_RAX: 0000000000000175 [ 30.385266] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 30.392511] RDX: 0000000000000000 RSI: 000000000000016b RDI: 0000000000000003 [ 30.399756] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 30.407001] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 30.414242] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 30.421490] 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 [ 30.440563] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801b0487c78 [ 30.447180] ---[ end trace e85b6466cb581ab1 ]--- [ 30.451924] Kernel panic - not syncing: Fatal exception [ 30.457655] Dumping ftrace buffer: [ 30.461165] (ftrace buffer empty) [ 30.464846] Kernel Offset: disabled [ 30.468444] Rebooting in 86400 seconds..