Oops: general protection fault, probably for non-canonical address 0xdffffc001fffe000: 0000 [#1] SMP KASAN PTI
KASAN: probably user-memory-access in range [0x00000000ffff0000-0x00000000ffff0007]
CPU: 0 UID: 0 PID: 11445 Comm: kworker/0:9 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: events_power_efficient do_cache_clean
RIP: 0010:cache_clean+0x417/0x9e0
Code: e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 32 88 8a f7 49 8b 1c 24 48 85 db 0f 84 66 02 00 00 48 89 d8 48 c1 e8 03 48 89 44 24 30 <42> 80 3c 28 00 74 08 48 89 df e8 0a 88 8a f7 49 89 dc 48 8b 03 48
RSP: 0018:ffffc9000634f940 EFLAGS: 00010206
RAX: 000000001fffe000 RBX: 00000000ffff0000 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000040 RDI: ffff8881104bc810
RBP: ffffc9000634fa60 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000c69f18 R12: ffff88810b95f828
R13: dffffc0000000000 R14: ffff88810b95f800 R15: 000000000000003f
FS:  0000000000000000(0000) GS:ffff8880b861a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f63359f5fc8 CR3: 0000000000db4000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 do_cache_clean+0x1e/0xa0
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:cache_clean+0x417/0x9e0
Code: e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 32 88 8a f7 49 8b 1c 24 48 85 db 0f 84 66 02 00 00 48 89 d8 48 c1 e8 03 48 89 44 24 30 <42> 80 3c 28 00 74 08 48 89 df e8 0a 88 8a f7 49 89 dc 48 8b 03 48
RSP: 0018:ffffc9000634f940 EFLAGS: 00010206
RAX: 000000001fffe000 RBX: 00000000ffff0000 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000040 RDI: ffff8881104bc810
RBP: ffffc9000634fa60 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000c69f18 R12: ffff88810b95f828
R13: dffffc0000000000 R14: ffff88810b95f800 R15: 000000000000003f
FS:  0000000000000000(0000) GS:ffff8880b861a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f63359f5fc8 CR3: 0000000000db4000 CR4: 00000000000006f0
