BUG: unable to handle kernel NULL pointer dereference at 0000000000000268
IP: atomic_add_return arch/x86/include/asm/atomic.h:157 [inline]
IP: rxrpc_send_data_packet+0xc8/0x13f0 net/rxrpc/output.c:281
kobject: 'loop5' (ffff8880a4b51360): kobject_uevent_env
PGD 9e71e067 P4D 9e71e067 PUD 89335067 PMD 0 
kobject: 'loop5' (ffff8880a4b51360): fill_kobj_path: path = '/devices/virtual/block/loop5'
Oops: 0002 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 2682 Comm: kworker/0:2 Not tainted 4.14.139 #35
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: krxrpcd rxrpc_process_call
task: ffff88809f78e340 task.stack: ffff88809f748000
RIP: 0010:atomic_add_return arch/x86/include/asm/atomic.h:157 [inline]
RIP: 0010:rxrpc_send_data_packet+0xc8/0x13f0 net/rxrpc/output.c:281
RSP: 0018:ffff88809f74fab0 EFLAGS: 00010246
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 1ffff11013ef1d81
RDX: 0000000000000000 RSI: ffff88809172eac0 RDI: ffff88809974f810
RBP: ffff88809f74fc60 R08: 0000000000000001 R09: ffff88809f78ec08
R10: ffff88809f74fc78 R11: 0000000000000000 R12: ffff88809172eac0
R13: ffff88809974f918 R14: ffff88809974f800 R15: ffff88809172eac0
FS:  0000000000000000(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000268 CR3: 000000009e455000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rxrpc_resend net/rxrpc/call_event.c:322 [inline]
 rxrpc_process_call+0x56f/0x1169 net/rxrpc/call_event.c:407
 process_one_work+0x863/0x1600 kernel/workqueue.c:2114
 worker_thread+0x5d9/0x1050 kernel/workqueue.c:2248
 kthread+0x319/0x430 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Code: f3 c7 40 24 f3 f3 f3 f3 e8 c6 77 c6 fb 49 8d 7e 10 48 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 31 11 00 00 49 8b 5e 10 b8 01 00 00 00 <f0> 0f c1 83 68 02 00 00 83 c0 01 48 89 da 48 c1 ea 03 89 85 8c 
RIP: atomic_add_return arch/x86/include/asm/atomic.h:157 [inline] RSP: ffff88809f74fab0
RIP: rxrpc_send_data_packet+0xc8/0x13f0 net/rxrpc/output.c:281 RSP: ffff88809f74fab0
CR2: 0000000000000268
---[ end trace 857d5e751890faed ]---