[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 12.506738] audit: type=1400 audit(1514111655.212:6): avc: denied { map } for pid=3135 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 'ci-upstream-kasan-gce-386-2,10.128.0.22' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 18.655058] audit: type=1400 audit(1514111661.360:7): avc: denied { map } for pid=3149 comm="syzkaller214598" path="/root/syzkaller214598547" 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 [ 18.658385] netlink: 'syzkaller214598': attribute type 46 has an invalid length. [ 18.658433] netlink: 'syzkaller214598': attribute type 46 has an invalid length. [ 18.658458] kasan: CONFIG_KASAN_INLINE enabled [ 18.658464] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 18.658471] general protection fault: 0000 [#1] SMP KASAN [ 18.658476] Dumping ftrace buffer: [ 18.658479] (ftrace buffer empty) [ 18.658482] Modules linked in: [ 18.658490] CPU: 1 PID: 3149 Comm: syzkaller214598 Not tainted 4.15.0-rc5+ #147 [ 18.658493] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.658505] RIP: 0010:__netlink_ns_capable+0x8b/0x120 [ 18.658509] RSP: 0018:ffff8801bc6e6fc0 EFLAGS: 00010206 [ 18.658514] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff84359210 [ 18.658518] RDX: 000000000000007b RSI: ffffffff85f10ae0 RDI: 00000000000003d8 [ 18.658522] RBP: ffff8801bc6e6fd8 R08: 0000000000000000 R09: 1ffff100378dcdce [ 18.658526] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff85f10ae0 [ 18.658529] R13: 000000000000000c R14: 0000000000000010 R15: 0000000000000020 [ 18.658535] FS: 0000000000000000(0000) GS:ffff8801db500000(0063) knlGS:000000000a017840 [ 18.658538] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 18.658542] CR2: 000000002000ffab CR3: 00000001c9df1006 CR4: 00000000001606e0 [ 18.658548] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 18.658552] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 18.658554] Call Trace: [ 18.658562] netlink_ns_capable+0x26/0x30 [ 18.658572] get_target_net+0x9d/0x120 [ 18.658580] rtnl_dump_ifinfo+0x2e5/0xee0 [ 18.658598] ? rtnl_getlink+0x670/0x670 [ 18.658607] ? rcu_read_lock_sched_held+0x108/0x120 [ 18.658617] ? kmem_cache_alloc_node_trace+0x370/0x750 [ 18.658626] ? kasan_unpoison_shadow+0x35/0x50 [ 18.658664] ? wait_for_completion+0x770/0x770 [ 18.658674] ? find_held_lock+0x35/0x1d0 [ 18.658686] netlink_dump+0x48c/0xce0 [ 18.658696] ? netlink_broadcast+0x50/0x50 [ 18.658711] __netlink_dump_start+0x4f0/0x6d0 [ 18.658720] ? rtnl_getlink+0x670/0x670 [ 18.658728] rtnetlink_rcv_msg+0x977/0x1020 [ 18.658739] ? validate_linkmsg+0x8e0/0x8e0 [ 18.658748] ? check_noncircular+0x20/0x20 [ 18.658758] ? find_held_lock+0x35/0x1d0 [ 18.658770] ? netlink_lookup+0x5f7/0xa90 [ 18.658777] ? lock_downgrade+0x980/0x980 [ 18.658786] ? find_held_lock+0x35/0x1d0 [ 18.658792] ? rtnl_getlink+0x670/0x670 [ 18.658802] ? netlink_deliver_tap+0x148/0xcf0 [ 18.658809] ? lock_downgrade+0x980/0x980 [ 18.658818] ? lock_release+0xa40/0xa40 [ 18.658824] ? netlink_lookup+0x620/0xa90 [ 18.658840] ? rtnl_getlink+0x670/0x670 [ 18.658855] netlink_rcv_skb+0x21e/0x460 [ 18.658862] ? validate_linkmsg+0x8e0/0x8e0 [ 18.658870] ? netlink_ack+0xa10/0xa10 [ 18.658879] ? netlink_skb_destructor+0x1d0/0x1d0 [ 18.658891] rtnetlink_rcv+0x1c/0x20 [ 18.658898] netlink_unicast+0x4e8/0x6f0 [ 18.658909] ? netlink_attachskb+0x8a0/0x8a0 [ 18.658921] ? security_netlink_send+0x81/0xb0 [ 18.658930] netlink_sendmsg+0xa4a/0xe60 [ 18.658942] ? netlink_unicast+0x6f0/0x6f0 [ 18.658952] ? security_socket_sendmsg+0x89/0xb0 [ 18.658959] ? netlink_unicast+0x6f0/0x6f0 [ 18.658968] sock_sendmsg+0xca/0x110 [ 18.658976] SYSC_sendto+0x361/0x5c0 [ 18.658985] ? SYSC_connect+0x4a0/0x4a0 [ 18.658993] ? find_held_lock+0x35/0x1d0 [ 18.659011] ? lock_downgrade+0x980/0x980 [ 18.659024] ? handle_mm_fault+0x410/0x8d0 [ 18.659029] ? down_read_trylock+0xdb/0x170 [ 18.659036] ? __do_page_fault+0x32d/0xc90 [ 18.659043] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 18.659049] ? vmacache_find+0x5f/0x280 [ 18.659060] ? up_read+0x1a/0x40 [ 18.659067] ? __do_page_fault+0x3d6/0xc90 [ 18.659080] SyS_sendto+0x40/0x50 [ 18.659087] ? SyS_getpeername+0x30/0x30 [ 18.659096] do_fast_syscall_32+0x3ee/0xf9d [ 18.659108] ? do_int80_syscall_32+0x9d0/0x9d0 [ 18.659114] ? kasan_check_read+0x11/0x20 [ 18.659122] ? syscall_return_slowpath+0x550/0x550 [ 18.659132] ? SyS_rt_sigaction+0x94/0x1b0 [ 18.659139] ? SyS_sigprocmask+0x4b0/0x4b0 [ 18.659145] ? SyS_read+0x184/0x220 [ 18.659153] ? retint_user+0x18/0x18 [ 18.659163] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 18.659176] entry_SYSENTER_compat+0x54/0x63 [ 18.659180] RIP: 0023:0xf7f01c79 [ 18.659183] RSP: 002b:00000000ff8e66fc EFLAGS: 00000286 ORIG_RAX: 0000000000000171 [ 18.659190] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 000000002000ffab [ 18.659193] RDX: 0000000000000055 RSI: 0000000000000000 RDI: 0000000020000000 [ 18.659196] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 18.659200] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 18.659203] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 18.659217] Code: fa 48 c1 ea 03 80 3c 02 00 0f 85 95 00 00 00 48 8b 5b 18 48 b8 00 00 00 00 00 fc ff df 48 8d bb d8 03 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 80 00 00 00 48 8b 9b d8 03 00 00 48 b8 00 00 [ 18.659335] RIP: __netlink_ns_capable+0x8b/0x120 RSP: ffff8801bc6e6fc0 [ 18.659367] ---[ end trace 78c4d9bdf7370985 ]--- [ 18.659370] Kernel panic - not syncing: Fatal exception [ 18.681316] Dumping ftrace buffer: [ 18.681319] (ftrace buffer empty) [ 18.681321] Kernel Offset: disabled [ 19.177062] Rebooting in 86400 seconds..