name:"syzkaller-shm138748771" 
flags: 0x1fffc000030200c(uptodate|dirty|private|unevictable|mlocked)
raw: 01fffc000030200c ffff8880683cf8d0 ffff8880683cf8d0 ffff8880a2a26a90
raw: 0000000000000000 ffff888093a9ec78 0000002d00000029 ffff8880a9832000
page dumped because: VM_BUG_ON_PAGE(PageLRU(page) || PageUnevictable(page))
page->mem_cgroup:ffff8880a9832000
------------[ cut here ]------------
kernel BUG at mm/vmscan.c:1523!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 26763 Comm: syz-executor.1 Not tainted 5.4.0-rc3+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:shrink_page_list+0x5c15/0x61f0 mm/vmscan.c:1523
Code: dd 16 00 48 89 da e9 29 fe ff ff e8 75 9a dd ff eb 05 e8 6e 9a dd ff 48 8b bd 40 ff ff ff 48 c7 c6 25 58 39 88 e8 cb 32 07 00 <0f> 0b e8 54 9a dd ff 48 89 df 48 c7 c6 c4 19 36 88 e8 b5 32 07 00
RSP: 0018:ffff8880683cf780 EFLAGS: 00010286
RAX: 0000000000000021 RBX: 0000000000100000 RCX: 1feba9afa4fc5b00
RDX: ffffc9000815a000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffff8880683cf970 R08: ffffffff815c8244 R09: ffffed1015d66120
R10: ffffed1015d66120 R11: 0000000000000000 R12: ffff8880683cfa18
R13: dffffc0000000000 R14: ffff8880683cf8d0 R15: 01fffc000030200c
FS:  00007f1cb6340700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2cd23000 CR3: 000000005a4a2000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 reclaim_pages+0x78c/0xa20 mm/vmscan.c:2190
 madvise_cold_or_pageout_pte_range+0x162c/0x1ef0 mm/madvise.c:453
 walk_pmd_range mm/pagewalk.c:53 [inline]
 walk_pud_range mm/pagewalk.c:112 [inline]
 walk_p4d_range mm/pagewalk.c:139 [inline]
 walk_pgd_range mm/pagewalk.c:166 [inline]
 __walk_page_range+0xd5c/0x1720 mm/pagewalk.c:261
 walk_page_range+0x2e7/0x5a0 mm/pagewalk.c:349
 madvise_vma mm/madvise.c:506 [inline]
 __do_sys_madvise mm/madvise.c:1113 [inline]
 __se_sys_madvise+0x168c/0x24f0 mm/madvise.c:1039
 __x64_sys_madvise+0x7b/0x90 mm/madvise.c:1039
 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459a59
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f1cb633fc78 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459a59
RDX: 0000000000000015 RSI: 86ac726dff2f4713 RDI: 0000000020bdc000
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1cb63406d4
R13: 00000000004c60e0 R14: 00000000004db0c0 R15: 00000000ffffffff
Modules linked in:
---[ end trace 085edd5c1498d886 ]---
RIP: 0010:shrink_page_list+0x5c15/0x61f0 mm/vmscan.c:1523
Code: dd 16 00 48 89 da e9 29 fe ff ff e8 75 9a dd ff eb 05 e8 6e 9a dd ff 48 8b bd 40 ff ff ff 48 c7 c6 25 58 39 88 e8 cb 32 07 00 <0f> 0b e8 54 9a dd ff 48 89 df 48 c7 c6 c4 19 36 88 e8 b5 32 07 00
RSP: 0018:ffff8880683cf780 EFLAGS: 00010286
RAX: 0000000000000021 RBX: 0000000000100000 RCX: 1feba9afa4fc5b00
RDX: ffffc9000815a000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffff8880683cf970 R08: ffffffff815c8244 R09: ffffed1015d66120
R10: ffffed1015d66120 R11: 0000000000000000 R12: ffff8880683cfa18
R13: dffffc0000000000 R14: ffff8880683cf8d0 R15: 01fffc000030200c
FS:  00007f1cb6340700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000712274 CR3: 000000005a4a2000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600