kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
CPU: 0 PID: 19562 Comm: kworker/u4:3 Not tainted 4.18.0-rc5+ #159
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: rpciod rpc_async_schedule
RIP: 0010:strlen+0x1f/0xa0 lib/string.c:479
Code: ff ff ff 0f 1f 84 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 fa 48 c1 ea 03 48 89 e5 41 54 49 89 fc 53 48 83 ec 08 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 04 84 c0 75 4d 41 80 3c 24 
RSP: 0000:ffff8801b00ef2e0 EFLAGS: 00010282
RAX: dffffc0000000000 RBX: ffff8801c7d8ae00 RCX: ffffffff86e74957
RDX: 0000000000000000 RSI: ffffffff86e6d10b RDI: 0000000000000000
RBP: ffff8801b00ef2f8 R08: ffff880199df64c0 R09: ffffed0032ec0093
R10: ffffed0032ec0093 R11: ffff88019760049f R12: 0000000000000000
R13: 0000000002000000 R14: 0000000000000000 R15: ffff8801b00ef3a8
FS:  0000000000000000(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020fe8010 CR3: 00000001c672c000 CR4: 00000000001426f0
DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 strlen include/linux/string.h:267 [inline]
 encode_rpcb_string+0x23/0x70 net/sunrpc/rpcb_clnt.c:914
 rpcb_enc_getaddr+0x146/0x1f0 net/sunrpc/rpcb_clnt.c:940
 rpcauth_wrap_req_encode net/sunrpc/auth.c:777 [inline]
 rpcauth_wrap_req+0x1ca/0x250 net/sunrpc/auth.c:791
 rpc_xdr_encode net/sunrpc/clnt.c:1755 [inline]
 call_transmit+0x8a9/0xfe0 net/sunrpc/clnt.c:1950
 __rpc_execute+0x292/0xf80 net/sunrpc/sched.c:784
 rpc_async_schedule+0x16/0x20 net/sunrpc/sched.c:857
 process_one_work+0xc73/0x1ba0 kernel/workqueue.c:2153
 process_scheduled_works kernel/workqueue.c:2212 [inline]
 worker_thread+0xaca/0x13c0 kernel/workqueue.c:2298
 kthread+0x345/0x410 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412
Modules linked in:
Dumping ftrace buffer:
   (ftrace buffer empty)
---[ end trace 5182b54d28410f11 ]---
RIP: 0010:strlen+0x1f/0xa0 lib/string.c:479
Code: ff ff ff 0f 1f 84 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 fa 48 c1 ea 03 48 89 e5 41 54 49 89 fc 53 48 83 ec 08 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 04 84 c0 75 4d 41 80 3c 24 
RSP: 0000:ffff8801b00ef2e0 EFLAGS: 00010282
RAX: dffffc0000000000 RBX: ffff8801c7d8ae00 RCX: ffffffff86e74957
RDX: 0000000000000000 RSI: ffffffff86e6d10b RDI: 0000000000000000
RBP: ffff8801b00ef2f8 R08: ffff880199df64c0 R09: ffffed0032ec0093
R10: ffffed0032ec0093 R11: ffff88019760049f R12: 0000000000000000
R13: 0000000002000000 R14: 0000000000000000 R15: ffff8801b00ef3a8
FS:  0000000000000000(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020fe8010 CR3: 0000000008e6a000 CR4: 00000000001426f0
DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600