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kernel BUG at mm/khugepaged.c:1785!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 5254 Comm: syz-executor126 Not tainted 6.5.0-rc2-next-20230718-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
RIP: 0010:collapse_file+0x1169/0x5530 mm/khugepaged.c:1785
Code: 89 c6 e8 5a fd a5 ff 84 db 0f 85 66 f1 ff ff e8 1d 02 a6 ff 0f 0b e9 5a f1 ff ff c6 44 24 48 00 e9 65 f0 ff ff e8 07 02 a6 ff <0f> 0b e8 00 02 a6 ff 4d 85 ed 74 1c e8 f6 01 a6 ff 44 89 eb 31 ff
RSP: 0018:ffffc90003e1f820 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 00000000000000af RCX: 0000000000000000
RDX: ffff888022920000 RSI: ffffffff81e0cb29 RDI: 0000000000000007
RBP: 000000077800aaaf R08: 0000000000000007 R09: 0000000000000000
R10: 00000000000000af R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88801aba8a00 R15: 000000077800a8af
FS:  00007fe00aaf16c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe00b399e60 CR3: 00000000230e1000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 hpage_collapse_scan_file+0xc8e/0x1650 mm/khugepaged.c:2285
 madvise_collapse+0x52c/0xb50 mm/khugepaged.c:2729
 madvise_vma_behavior+0x200/0x1e60 mm/madvise.c:1094