[?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. [ 18.176268] audit: type=1400 audit(1521175246.555:6): avc: denied { map } for pid=4228 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 '10.128.0.28' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 24.478729] audit: type=1400 audit(1521175252.857:7): avc: denied { map } for pid=4242 comm="syzkaller666212" path="/root/syzkaller666212197" 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 [ 29.664113] kasan: CONFIG_KASAN_INLINE enabled [ 29.668797] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.676315] general protection fault: 0000 [#1] SMP KASAN [ 29.681830] Dumping ftrace buffer: [ 29.685341] (ftrace buffer empty) [ 29.689024] Modules linked in: [ 29.692191] CPU: 0 PID: 4242 Comm: syzkaller666212 Not tainted 4.16.0-rc5+ #265 [ 29.699605] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.708932] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 29.713999] RSP: 0018:ffff8801d29e7c78 EFLAGS: 00010206 [ 29.719338] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845ff6f4 [ 29.726576] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 29.733813] RBP: ffff8801d29e7c90 R08: 0000000000000000 R09: 1ffff1003a53cf0b [ 29.741053] R10: ffff8801d29e7820 R11: 0000000000000001 R12: ffff8801b12ec7d2 [ 29.748289] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801d29e7d08 [ 29.755528] FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:0000000009134840 [ 29.763720] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 29.769571] CR2: 0000000001e745c8 CR3: 00000001b069f005 CR4: 00000000001606f0 [ 29.776811] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.784052] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.791291] Call Trace: [ 29.793850] smc_shutdown+0x3ed/0x540 [ 29.797623] SyS_shutdown+0x137/0x290 [ 29.801392] ? SyS_getsockopt+0x340/0x340 [ 29.805514] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 29.811024] ? do_fast_syscall_32+0x156/0xf9f [ 29.815489] ? SyS_getsockopt+0x340/0x340 [ 29.819606] do_fast_syscall_32+0x3ec/0xf9f [ 29.823899] ? do_int80_syscall_32+0x9c0/0x9c0 [ 29.828448] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.833173] ? syscall_return_slowpath+0x550/0x550 [ 29.838072] ? syscall_return_slowpath+0x2ac/0x550 [ 29.842971] ? prepare_exit_to_usermode+0x350/0x350 [ 29.847959] ? sysret32_from_system_call+0x5/0x3c [ 29.852772] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.857586] entry_SYSENTER_compat+0x70/0x7f [ 29.861965] RIP: 0023:0xf7f28c99 [ 29.865296] RSP: 002b:00000000ffa557cc EFLAGS: 00000217 ORIG_RAX: 0000000000000175 [ 29.872971] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 29.880207] RDX: 0000000000000000 RSI: 000000000000016b RDI: 0000000000000003 [ 29.887444] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 29.894683] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 29.901919] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 29.909164] 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 [ 29.928238] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801d29e7c78 [ 29.934863] ---[ end trace 2639a7551fc33d6e ]--- [ 29.939615] Kernel panic - not syncing: Fatal exception [ 29.945359] Dumping ftrace buffer: [ 29.948869] (ftrace buffer empty) [ 29.952545] Kernel Offset: disabled [ 29.956142] Rebooting in 86400 seconds..