[?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. [ 17.276733] audit: type=1400 audit(1520318111.382:6): avc: denied { map } for pid=4026 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 '10.128.0.54' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 23.851872] audit: type=1400 audit(1520318117.957:7): avc: denied { map } for pid=4040 comm="syzkaller289580" path="/root/syzkaller289580470" 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 [ 29.152216] kasan: CONFIG_KASAN_INLINE enabled [ 29.157080] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.164467] general protection fault: 0000 [#1] SMP KASAN [ 29.169981] Dumping ftrace buffer: [ 29.173498] (ftrace buffer empty) [ 29.177186] Modules linked in: [ 29.180357] CPU: 1 PID: 4040 Comm: syzkaller289580 Not tainted 4.16.0-rc4+ #252 [ 29.188644] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.197981] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 29.203054] RSP: 0018:ffff8801d29e7c78 EFLAGS: 00010206 [ 29.208389] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fd6f4 [ 29.215630] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 29.222871] RBP: ffff8801d29e7c90 R08: 0000000000000000 R09: 1ffff1003a53cf0b [ 29.230113] R10: ffff8801d29e7820 R11: 0000000000000001 R12: ffff8801b890e7d2 [ 29.237355] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801d29e7d08 [ 29.244598] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000093e6840 [ 29.252798] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 29.258661] CR2: 0000000001b93b48 CR3: 00000001cfad5001 CR4: 00000000001606e0 [ 29.265904] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.273147] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.280387] Call Trace: [ 29.282954] smc_shutdown+0x3ed/0x540 [ 29.286729] SyS_shutdown+0x137/0x290 [ 29.290501] ? SyS_getsockopt+0x340/0x340 [ 29.294624] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 29.300132] ? do_fast_syscall_32+0x156/0xf9f [ 29.304600] ? SyS_getsockopt+0x340/0x340 [ 29.308727] do_fast_syscall_32+0x3ec/0xf9f [ 29.313024] ? do_int80_syscall_32+0x9c0/0x9c0 [ 29.317588] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.322325] ? syscall_return_slowpath+0x550/0x550 [ 29.327226] ? syscall_return_slowpath+0x2ac/0x550 [ 29.332126] ? prepare_exit_to_usermode+0x350/0x350 [ 29.337114] ? sysret32_from_system_call+0x5/0x3c [ 29.341930] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.346746] entry_SYSENTER_compat+0x70/0x7f [ 29.351127] RIP: 0023:0xf7f02c99 [ 29.354461] RSP: 002b:00000000ffe84a9c EFLAGS: 00000217 ORIG_RAX: 0000000000000175 [ 29.362138] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 29.369378] RDX: 0000000000000000 RSI: 000000000000016b RDI: 0000000000000003 [ 29.376619] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 29.383858] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 29.391097] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 29.398343] 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 [ 29.417412] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801d29e7c78 [ 29.424036] ---[ end trace 1ae532046629db0e ]--- [ 29.428792] Kernel panic - not syncing: Fatal exception [ 29.434546] Dumping ftrace buffer: [ 29.438069] (ftrace buffer empty) [ 29.441752] Kernel Offset: disabled [ 29.445353] Rebooting in 86400 seconds..