[?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. [ 17.820134] audit: type=1400 audit(1520153216.017:6): 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 '10.128.0.31' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 24.269560] audit: type=1400 audit(1520153222.467:7): avc: denied { map } for pid=4111 comm="syzkaller915834" path="/root/syzkaller915834634" 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 [ 29.663120] kasan: CONFIG_KASAN_INLINE enabled [ 29.667798] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.675315] general protection fault: 0000 [#1] SMP KASAN [ 29.680826] Dumping ftrace buffer: [ 29.684335] (ftrace buffer empty) [ 29.688017] Modules linked in: [ 29.691180] CPU: 1 PID: 4111 Comm: syzkaller915834 Not tainted 4.16.0-rc3+ #249 [ 29.698593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.707924] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 29.712996] RSP: 0018:ffff8801c87f7c78 EFLAGS: 00010206 [ 29.718327] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fc6f4 [ 29.725567] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 29.732808] RBP: ffff8801c87f7c90 R08: 0000000000000000 R09: 1ffff100390fef0b [ 29.740047] R10: ffff8801c87f7820 R11: 0000000000000001 R12: ffff8801c93e87d2 [ 29.747286] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801c87f7d08 [ 29.754525] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:0000000008c50840 [ 29.762719] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 29.768568] CR2: 0000000001bea838 CR3: 00000001c8418002 CR4: 00000000001606e0 [ 29.775808] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.783049] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.790286] Call Trace: [ 29.792848] smc_shutdown+0x3ed/0x540 [ 29.796620] SyS_shutdown+0x137/0x290 [ 29.800391] ? SyS_getsockopt+0x340/0x340 [ 29.804510] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 29.810017] ? do_fast_syscall_32+0x156/0xf9f [ 29.814482] ? SyS_getsockopt+0x340/0x340 [ 29.818598] do_fast_syscall_32+0x3ec/0xf9f [ 29.822891] ? do_int80_syscall_32+0x9c0/0x9c0 [ 29.827441] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.832167] ? syscall_return_slowpath+0x550/0x550 [ 29.837066] ? syscall_return_slowpath+0x2ac/0x550 [ 29.841966] ? prepare_exit_to_usermode+0x350/0x350 [ 29.846953] ? sysret32_from_system_call+0x5/0x3c [ 29.851772] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.856585] entry_SYSENTER_compat+0x70/0x7f [ 29.860959] RIP: 0023:0xf7fd2c99 [ 29.864290] RSP: 002b:00000000ffbf4ddc EFLAGS: 00000217 ORIG_RAX: 0000000000000175 [ 29.871968] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 29.879206] RDX: 0000000000000000 RSI: 000000000000016b RDI: 0000000000000003 [ 29.886444] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 29.893684] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 29.900921] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 29.908176] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 4c 3d 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 [ 29.927243] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801c87f7c78 [ 29.933849] ---[ end trace 1af7d07d270ceec8 ]--- [ 29.938597] Kernel panic - not syncing: Fatal exception [ 29.944292] Dumping ftrace buffer: [ 29.947886] (ftrace buffer empty) [ 29.951566] Kernel Offset: disabled [ 29.955161] Rebooting in 86400 seconds..