[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [ 17.816097] audit: type=1400 audit(1521234614.031:6): avc: denied { map } for pid=4043 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 '10.128.10.20' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 24.132269] audit: type=1400 audit(1521234620.348:7): avc: denied { map } for pid=4057 comm="syzkaller170856" path="/root/syzkaller170856416" 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 [ 29.151137] kasan: CONFIG_KASAN_INLINE enabled [ 29.155827] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.163205] general protection fault: 0000 [#1] SMP KASAN [ 29.168720] Dumping ftrace buffer: [ 29.172229] (ftrace buffer empty) [ 29.175914] Modules linked in: [ 29.179081] CPU: 0 PID: 4057 Comm: syzkaller170856 Not tainted 4.16.0-rc5+ #266 [ 29.186492] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.195820] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 29.200891] RSP: 0018:ffff8801ceb87c78 EFLAGS: 00010206 [ 29.206223] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845ff6f4 [ 29.213460] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 29.220700] RBP: ffff8801ceb87c90 R08: 0000000000000000 R09: 1ffff10039d70f0b [ 29.227937] R10: ffff8801ceb87820 R11: 0000000000000001 R12: ffff8801ce19a7d2 [ 29.235175] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801ceb87d08 [ 29.242412] FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:0000000008892840 [ 29.250604] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 29.256452] CR2: 00007f61eff23000 CR3: 00000001ce1b2004 CR4: 00000000001606f0 [ 29.263693] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.270933] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.278177] Call Trace: [ 29.280736] smc_shutdown+0x3ed/0x540 [ 29.284507] SyS_shutdown+0x137/0x290 [ 29.288279] ? SyS_getsockopt+0x340/0x340 [ 29.292398] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 29.297902] ? do_fast_syscall_32+0x156/0xf9f [ 29.302366] ? SyS_getsockopt+0x340/0x340 [ 29.306482] do_fast_syscall_32+0x3ec/0xf9f [ 29.310773] ? do_int80_syscall_32+0x9c0/0x9c0 [ 29.315324] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.320048] ? syscall_return_slowpath+0x550/0x550 [ 29.324945] ? syscall_return_slowpath+0x2ac/0x550 [ 29.329851] ? prepare_exit_to_usermode+0x350/0x350 [ 29.334837] ? sysret32_from_system_call+0x5/0x3c [ 29.339648] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.344461] entry_SYSENTER_compat+0x70/0x7f [ 29.348836] RIP: 0023:0xf7fd9c99 [ 29.352169] RSP: 002b:00000000ffd4e7ac EFLAGS: 00000217 ORIG_RAX: 0000000000000175 [ 29.360207] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 29.367446] RDX: 0000000000000000 RSI: 000000000000016b RDI: 0000000000000003 [ 29.374695] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 29.381943] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 29.389182] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 29.396428] 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 [ 29.415506] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801ceb87c78 [ 29.422184] ---[ end trace 219e6bb363fd9c28 ]--- [ 29.426941] Kernel panic - not syncing: Fatal exception [ 29.432660] Dumping ftrace buffer: [ 29.436173] (ftrace buffer empty) [ 29.439855] Kernel Offset: disabled [ 29.443452] Rebooting in 86400 seconds..