[?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. [ 18.164541] audit: type=1400 audit(1520042250.682:6): avc: denied { map } for pid=4210 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 '10.128.0.25' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 24.558847] audit: type=1400 audit(1520042257.076:7): avc: denied { map } for pid=4224 comm="syzkaller843095" path="/root/syzkaller843095566" 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 [ 29.664151] kasan: CONFIG_KASAN_INLINE enabled [ 29.668875] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.676410] general protection fault: 0000 [#1] SMP KASAN [ 29.681926] Dumping ftrace buffer: [ 29.685435] (ftrace buffer empty) [ 29.689118] Modules linked in: [ 29.692286] CPU: 1 PID: 4224 Comm: syzkaller843095 Not tainted 4.16.0-rc3+ #247 [ 29.699698] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.709038] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 29.714109] RSP: 0018:ffff8801be917c78 EFLAGS: 00010206 [ 29.719438] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fb6f4 [ 29.726676] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 29.733917] RBP: ffff8801be917c90 R08: 0000000000000000 R09: 1ffff10037d22f0b [ 29.741157] R10: ffff8801be917820 R11: 0000000000000001 R12: ffff8801b5fcc7d2 [ 29.748397] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801be917d08 [ 29.755636] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:000000000a0ad840 [ 29.763829] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 29.769679] CR2: 000000000232f370 CR3: 00000001b3656003 CR4: 00000000001606e0 [ 29.776921] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.784161] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.791397] Call Trace: [ 29.793960] smc_shutdown+0x3ed/0x540 [ 29.797734] SyS_shutdown+0x137/0x290 [ 29.801505] ? SyS_getsockopt+0x340/0x340 [ 29.805627] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 29.811135] ? do_fast_syscall_32+0x156/0xf9f [ 29.815602] ? SyS_getsockopt+0x340/0x340 [ 29.819720] do_fast_syscall_32+0x3ec/0xf9f [ 29.824023] ? do_int80_syscall_32+0x9c0/0x9c0 [ 29.828577] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 29.834085] ? syscall_return_slowpath+0x550/0x550 [ 29.838983] ? syscall_return_slowpath+0x2ac/0x550 [ 29.843883] ? sysret32_from_system_call+0x5/0x3c [ 29.848711] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.853618] entry_SYSENTER_compat+0x70/0x7f [ 29.857993] RIP: 0023:0xf7fc5c99 [ 29.861329] RSP: 002b:00000000fff3bb1c EFLAGS: 00000217 ORIG_RAX: 0000000000000175 [ 29.869007] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 29.876256] RDX: 0000000000000002 RSI: 000000000000016b RDI: 0000000000000003 [ 29.883496] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 29.890731] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 29.897970] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 29.905213] 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 [ 29.924280] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801be917c78 [ 29.930891] ---[ end trace d6d74534087d5a6f ]--- [ 29.935647] Kernel panic - not syncing: Fatal exception [ 29.941390] Dumping ftrace buffer: [ 29.944904] (ftrace buffer empty) [ 29.948581] Kernel Offset: disabled [ 29.952177] Rebooting in 86400 seconds..