[?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. [ 18.103400] audit: type=1400 audit(1520366944.537:6): avc: denied { map } for pid=4097 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 '10.128.0.19' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 24.427069] audit: type=1400 audit(1520366950.861:7): avc: denied { map } for pid=4111 comm="syzkaller592082" path="/root/syzkaller592082988" 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 [ 29.663174] kasan: CONFIG_KASAN_INLINE enabled [ 29.667949] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.675332] general protection fault: 0000 [#1] SMP KASAN [ 29.680857] Dumping ftrace buffer: [ 29.684368] (ftrace buffer empty) [ 29.688047] Modules linked in: [ 29.691235] CPU: 1 PID: 4111 Comm: syzkaller592082 Not tainted 4.16.0-rc4+ #253 [ 29.698647] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.707978] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 29.713047] RSP: 0018:ffff8801ca50fc78 EFLAGS: 00010206 [ 29.718383] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fd6f4 [ 29.725624] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 29.732862] RBP: ffff8801ca50fc90 R08: 0000000000000000 R09: 1ffff100394a1f0b [ 29.740104] R10: ffff8801ca50f820 R11: 0000000000000001 R12: ffff8801cbd2c7d2 [ 29.747342] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801ca50fd08 [ 29.754593] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000091f1840 [ 29.762787] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 29.768642] CR2: 00007f649a1b8000 CR3: 00000001cb5a4005 CR4: 00000000001606e0 [ 29.775883] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.783121] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.790387] Call Trace: [ 29.792954] smc_shutdown+0x3ed/0x540 [ 29.796739] SyS_shutdown+0x137/0x290 [ 29.800510] ? SyS_getsockopt+0x340/0x340 [ 29.804640] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 29.810148] ? do_fast_syscall_32+0x156/0xf9f [ 29.814614] ? SyS_getsockopt+0x340/0x340 [ 29.818739] do_fast_syscall_32+0x3ec/0xf9f [ 29.823035] ? do_int80_syscall_32+0x9c0/0x9c0 [ 29.827587] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.832313] ? syscall_return_slowpath+0x550/0x550 [ 29.837213] ? syscall_return_slowpath+0x2ac/0x550 [ 29.842113] ? prepare_exit_to_usermode+0x350/0x350 [ 29.847100] ? sysret32_from_system_call+0x5/0x3c [ 29.851913] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.856727] entry_SYSENTER_compat+0x70/0x7f [ 29.861114] RIP: 0023:0xf7f90c99 [ 29.864447] RSP: 002b:00000000ffd62a9c EFLAGS: 00000217 ORIG_RAX: 0000000000000175 [ 29.872125] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 29.879365] RDX: 0000000000000000 RSI: 000000000000016b RDI: 0000000000000003 [ 29.886606] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 29.893853] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 29.901098] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 29.908345] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 3c 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 [ 29.927424] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801ca50fc78 [ 29.934055] ---[ end trace 81382ced1dbd6d24 ]--- [ 29.938825] Kernel panic - not syncing: Fatal exception [ 29.944589] Dumping ftrace buffer: [ 29.948111] (ftrace buffer empty) [ 29.951792] Kernel Offset: disabled [ 29.955389] Rebooting in 86400 seconds..