general protection fault in cache

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	general protection fault in cache_clean net nfs				2	1293d	1321d	0/26	auto-closed as invalid on 2021/02/10 06:56
general protection fault, probably for non-canonical address 0xdffffc000000e0e0: 0000 [#1] PREEMPT SMP KASAN
KASAN: probably user-memory-access in range [0x0000000000070700-0x0000000000070707]
CPU: 0 PID: 11048 Comm: kworker/0:11 Not tainted 5.13.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_power_efficient do_cache_clean
RIP: 0010:cache_clean+0x38c/0x7f0 net/sunrpc/cache.c:471
Code: 03 00 00 48 8b 1b 48 8d 6c 24 38 49 be 00 00 00 00 00 fc ff df 48 85 db 0f 84 4b 03 00 00 e8 bb de 55 f9 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 17 04 00 00 48 8b 03 49 8d bd d0 00 00 00 48
RSP: 0018:ffffc9001852fc58 EFLAGS: 00010203
RAX: 000000000000e0e0 RBX: 0000000000070707 RCX: 0000000000000000
RDX: ffff88802a8f8000 RSI: ffffffff881efd35 RDI: ffff88809d5a2c10
RBP: ffffc9001852fc90 R08: 0000000000000001 R09: 0000000000000003
R10: fffff520030a5f7d R11: 0000000000000004 R12: 0000000000000400
R13: ffff88809d5a2c00 R14: dffffc0000000000 R15: ffff88800010c000
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000543978 CR3: 0000000022068000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 do_cache_clean net/sunrpc/cache.c:506 [inline]
 do_cache_clean+0x27/0xa0 net/sunrpc/cache.c:499
 process_one_work+0x98d/0x1600 kernel/workqueue.c:2276
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2422
 kthread+0x3b1/0x4a0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Modules linked in:
---[ end trace 507af16c58d50bf7 ]---
RIP: 0010:cache_clean+0x38c/0x7f0 net/sunrpc/cache.c:471
Code: 03 00 00 48 8b 1b 48 8d 6c 24 38 49 be 00 00 00 00 00 fc ff df 48 85 db 0f 84 4b 03 00 00 e8 bb de 55 f9 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 17 04 00 00 48 8b 03 49 8d bd d0 00 00 00 48
RSP: 0018:ffffc9001852fc58 EFLAGS: 00010203
RAX: 000000000000e0e0 RBX: 0000000000070707 RCX: 0000000000000000
RDX: ffff88802a8f8000 RSI: ffffffff881efd35 RDI: ffff88809d5a2c10
RBP: ffffc9001852fc90 R08: 0000000000000001 R09: 0000000000000003
R10: fffff520030a5f7d R11: 0000000000000004 R12: 0000000000000400
R13: ffff88809d5a2c00 R14: dffffc0000000000 R15: ffff88800010c000
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000543978 CR3: 0000000022068000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400