BUG: unable to handle page fault for address: ffffffff81417c79
#PF: supervisor write access in kernel mode
#PF: error_code(0x0003) - permissions violation
PGD b08f067 P4D b08f067 PUD b090063 PMD 14001e1 
Oops: 0003 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 2199 Comm: kswapd0 Not tainted 5.10.0-rc5-next-20201130-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:mem_cgroup_lruvec include/linux/memcontrol.h:630 [inline]
RIP: 0010:parent_lruvec include/linux/memcontrol.h:1560 [inline]
RIP: 0010:workingset_age_nonresident+0x179/0x1c0 mm/workingset.c:242
Code: 85 db 0f 85 c8 fe ff ff 5b 5d 41 5c 41 5d 41 5e 41 5f e9 6a 67 cf ff e8 65 67 cf ff 49 8d 9d 18 4d 00 00 eb b3 e8 57 67 cf ff <4c> 89 ab c0 00 00 00 eb c7 e8 69 35 12 00 e9 d3 fe ff ff e8 5f 35
RSP: 0018:ffffc900088df490 EFLAGS: 00010093
RAX: 0000000000000000 RBX: ffffffff81417bb9 RCX: 0000000000000000
RDX: ffff888016da9ac0 RSI: ffffffff81a159f9 RDI: ffffffff81417c79
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffff88813ffffdbf
R10: ffffed1027ffffb7 R11: 0000000000000000 R12: ffffffff8e791228
R13: ffff88813fffb000 R14: 0000000000000001 R15: ffffffff8e791108
FS:  0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffff81417c79 CR3: 000000000b08e000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 workingset_eviction+0x452/0x9b0 mm/workingset.c:266
 __remove_mapping+0x867/0xd20 mm/vmscan.c:927
 shrink_page_list+0x246a/0x5e80 mm/vmscan.c:1431
 shrink_inactive_list+0x347/0xca0 mm/vmscan.c:1950
 shrink_list mm/vmscan.c:2172 [inline]
 shrink_lruvec+0x61b/0x11b0 mm/vmscan.c:2467
 shrink_node_memcgs mm/vmscan.c:2655 [inline]
 shrink_node+0x833/0x1d00 mm/vmscan.c:2772
 kswapd_shrink_node mm/vmscan.c:3515 [inline]
 balance_pgdat+0x6aa/0x10d0 mm/vmscan.c:3673
 kswapd+0x5b1/0xdb0 mm/vmscan.c:3930
 kthread+0x3b1/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Modules linked in:
CR2: ffffffff81417c79
---[ end trace baadfe5ec1651312 ]---
RIP: 0010:mem_cgroup_lruvec include/linux/memcontrol.h:630 [inline]
RIP: 0010:parent_lruvec include/linux/memcontrol.h:1560 [inline]
RIP: 0010:workingset_age_nonresident+0x179/0x1c0 mm/workingset.c:242
Code: 85 db 0f 85 c8 fe ff ff 5b 5d 41 5c 41 5d 41 5e 41 5f e9 6a 67 cf ff e8 65 67 cf ff 49 8d 9d 18 4d 00 00 eb b3 e8 57 67 cf ff <4c> 89 ab c0 00 00 00 eb c7 e8 69 35 12 00 e9 d3 fe ff ff e8 5f 35
RSP: 0018:ffffc900088df490 EFLAGS: 00010093
RAX: 0000000000000000 RBX: ffffffff81417bb9 RCX: 0000000000000000
RDX: ffff888016da9ac0 RSI: ffffffff81a159f9 RDI: ffffffff81417c79
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffff88813ffffdbf
R10: ffffed1027ffffb7 R11: 0000000000000000 R12: ffffffff8e791228
R13: ffff88813fffb000 R14: 0000000000000001 R15: ffffffff8e791108
FS:  0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffff81417c79 CR3: 000000000b08e000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400