[?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. [ 19.079489] audit: type=1400 audit(1520043056.948:6): avc: denied { map } for pid=4217 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 '10.128.10.6' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 25.377635] audit: type=1400 audit(1520043063.246:7): avc: denied { map } for pid=4231 comm="syzkaller457600" path="/root/syzkaller457600078" 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 [ 30.687527] kasan: CONFIG_KASAN_INLINE enabled [ 30.692213] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 30.699584] general protection fault: 0000 [#1] SMP KASAN [ 30.705099] Dumping ftrace buffer: [ 30.708610] (ftrace buffer empty) [ 30.712290] Modules linked in: [ 30.715457] CPU: 1 PID: 4231 Comm: syzkaller457600 Not tainted 4.16.0-rc3+ #337 [ 30.722871] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.732200] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 30.737267] RSP: 0018:ffff8801b0957cc8 EFLAGS: 00010206 [ 30.742598] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fb6f4 [ 30.749836] RDX: 0000000000000005 RSI: 0000000000000002 RDI: 0000000000000028 [ 30.757075] RBP: ffff8801b0957ce0 R08: 0000000000000000 R09: 1ffff1003612af15 [ 30.764313] R10: ffff8801b0957870 R11: 0000000000000001 R12: ffff8801ae78c7d2 [ 30.771554] R13: 0000000000000002 R14: 0000000000000000 R15: ffff8801b0957d58 [ 30.778793] FS: 00000000012c8880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 30.786986] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.792841] CR2: 00000000018d3d90 CR3: 00000001afe89003 CR4: 00000000001606e0 [ 30.800085] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.807326] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.814564] Call Trace: [ 30.817127] smc_shutdown+0x3ed/0x540 [ 30.820899] SyS_shutdown+0x137/0x290 [ 30.824672] ? SyS_getsockopt+0x340/0x340 [ 30.828794] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 30.834299] ? do_syscall_64+0xb7/0x940 [ 30.838247] ? SyS_getsockopt+0x340/0x340 [ 30.842365] do_syscall_64+0x281/0x940 [ 30.846220] ? __do_page_fault+0xc90/0xc90 [ 30.850437] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.855165] ? syscall_return_slowpath+0x550/0x550 [ 30.860063] ? syscall_return_slowpath+0x2ac/0x550 [ 30.864960] ? prepare_exit_to_usermode+0x350/0x350 [ 30.869948] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 30.875281] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.880097] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 30.885257] RIP: 0033:0x43fcb9 [ 30.888418] RSP: 002b:00007ffe81105608 EFLAGS: 00000217 ORIG_RAX: 0000000000000030 [ 30.896096] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcb9 [ 30.903333] RDX: 000000000043fcb9 RSI: 0000000000000002 RDI: 0000000000000003 [ 30.910571] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 30.917810] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004015e0 [ 30.925048] R13: 0000000000401670 R14: 0000000000000000 R15: 0000000000000000 [ 30.932293] 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 [ 30.951365] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801b0957cc8 [ 30.957983] ---[ end trace 0a4c98254d137f80 ]--- [ 30.962724] Kernel panic - not syncing: Fatal exception [ 30.968428] Dumping ftrace buffer: [ 30.971936] (ftrace buffer empty) [ 30.975614] Kernel Offset: disabled [ 30.979214] Rebooting in 86400 seconds..