Warning: Permanently added '10.128.0.57' (ECDSA) to the list of known hosts.
executing program
[   48.180270] kauditd_printk_skb: 2 callbacks suppressed
[   48.180284] audit: type=1400 audit(1572784890.737:36): avc:  denied  { map } for  pid=7552 comm="syz-executor659" path="/root/syz-executor659710954" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
[   48.184210] 
[   48.213607] =============================
[   48.217746] WARNING: suspicious RCU usage
[   48.221874] 4.19.81 #0 Not tainted
[   48.225404] -----------------------------
[   48.229535] include/linux/radix-tree.h:241 suspicious rcu_dereference_check() usage!
[   48.237397] 
[   48.237397] other info that might help us debug this:
[   48.237397] 
[   48.245522] 
[   48.245522] rcu_scheduler_active = 2, debug_locks = 1
[   48.252171] 2 locks held by syz-executor659/7552:
[   48.256989]  #0: 00000000c07c9d7f (&sb->s_type->i_mutex_key#12){+.+.}, at: memfd_fcntl+0x235/0x1750
[   48.266185]  #1: 0000000020c6b994 (&(&(&mapping->i_pages)->xa_lock)->rlock){-...}, at: memfd_fcntl+0x4bc/0x1750
[   48.276436] 
[   48.276436] stack backtrace:
[   48.280952] CPU: 1 PID: 7552 Comm: syz-executor659 Not tainted 4.19.81 #0
[   48.287855] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   48.297188] Call Trace:
[   48.299767]  dump_stack+0x172/0x1f0
[   48.303382]  lockdep_rcu_suspicious+0x153/0x15d
[   48.308040]  memfd_fcntl+0xfdf/0x1750
[   48.311831]  ? vfs_write+0x2f0/0x560
[   48.315528]  ? find_held_lock+0x35/0x130
[   48.319572]  ? vfs_write+0x2f0/0x560
[   48.323277]  ? memfd_file_seals_ptr+0x160/0x160
[   48.327938]  ? check_preemption_disabled+0x48/0x290
[   48.332951]  do_fcntl+0x200/0x1020
[   48.336487]  ? f_getown+0xc0/0xc0
[   48.339923]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   48.345440]  ? ksys_write+0x1f1/0x2d0
[   48.349233]  ? __sanitizer_cov_trace_switch+0x49/0x80
[   48.354407]  ? selinux_file_fcntl+0x74/0x140
[   48.358797]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   48.364314]  ? security_file_fcntl+0x8d/0xc0
[   48.368707]  __x64_sys_fcntl+0x16d/0x1e0
[   48.372754]  do_syscall_64+0xfd/0x620
[   48.376542]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   48.381710] RIP: 0033:0x4401b9
[   48.384889] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
[   48.403778] RSP: 002b:00007ffd1713beb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000048
[   48.411473] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004401b9
[   48.418724] RDX: 0000000000000009 RSI: 0000000000000409 RDI: 0000000000000003
[   48.425975] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 0