[?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. [ 17.332007] audit: type=1400 audit(1520710716.659:6): avc: denied { map } for pid=4181 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 '10.128.0.12' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 23.637470] audit: type=1400 audit(1520710722.965:7): avc: denied { map } for pid=4195 comm="syzkaller046073" path="/root/syzkaller046073912" 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 [ 28.640137] kasan: CONFIG_KASAN_INLINE enabled [ 28.644827] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 28.652371] general protection fault: 0000 [#1] SMP KASAN [ 28.657892] Dumping ftrace buffer: [ 28.661401] (ftrace buffer empty) [ 28.665100] Modules linked in: [ 28.668268] CPU: 1 PID: 4195 Comm: syzkaller046073 Not tainted 4.16.0-rc4+ #258 [ 28.675683] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.685035] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 28.690106] RSP: 0018:ffff8801bb7cfc78 EFLAGS: 00010206 [ 28.695446] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fd6f4 [ 28.702686] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 28.709925] RBP: ffff8801bb7cfc90 R08: 0000000000000000 R09: 1ffff100376f9f0b [ 28.717164] R10: ffff8801bb7cf820 R11: 0000000000000001 R12: ffff8801b93b27d2 [ 28.724402] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801bb7cfd08 [ 28.731644] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:0000000008cbc840 [ 28.739840] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 28.745696] CR2: 00007f3b445ce000 CR3: 00000001b8993004 CR4: 00000000001606e0 [ 28.752936] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.760174] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.767412] Call Trace: [ 28.769975] smc_shutdown+0x3ed/0x540 [ 28.773748] SyS_shutdown+0x137/0x290 [ 28.777520] ? SyS_getsockopt+0x340/0x340 [ 28.781643] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 28.787152] ? do_fast_syscall_32+0x156/0xf9f [ 28.791619] ? SyS_getsockopt+0x340/0x340 [ 28.795735] do_fast_syscall_32+0x3ec/0xf9f [ 28.800034] ? do_int80_syscall_32+0x9c0/0x9c0 [ 28.804585] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 28.809311] ? syscall_return_slowpath+0x550/0x550 [ 28.814214] ? syscall_return_slowpath+0x2ac/0x550 [ 28.819119] ? prepare_exit_to_usermode+0x350/0x350 [ 28.824107] ? sysret32_from_system_call+0x5/0x3c [ 28.828920] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.833734] entry_SYSENTER_compat+0x70/0x7f [ 28.838112] RIP: 0023:0xf7f07c99 [ 28.841443] RSP: 002b:00000000ff9ddcec EFLAGS: 00000217 ORIG_RAX: 0000000000000175 [ 28.849119] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 28.856358] RDX: 0000000000000000 RSI: 000000000000016b RDI: 0000000000000003 [ 28.863598] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 28.870842] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 28.878083] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 28.885335] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 5c 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 [ 28.904585] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801bb7cfc78 [ 28.911211] ---[ end trace 62c09c863b4d8a29 ]--- [ 28.915975] Kernel panic - not syncing: Fatal exception [ 28.921762] Dumping ftrace buffer: [ 28.925280] (ftrace buffer empty) [ 28.928959] Kernel Offset: disabled [ 28.932556] Rebooting in 86400 seconds..