node ffff888054f018c0 offset 0 parent ffff888054f039c0 shift 0 count 64 values 0 array ffff88802ada8a20 list ffff888054f018d8 ffff888054f018d8 marks 0 0 0 ------------[ cut here ]------------ kernel BUG at ./include/linux/xarray.h:1441! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 38 Comm: khugepaged Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026 RIP: 0010:XAS_INVALID include/linux/xarray.h:1441 [inline] RIP: 0010:collapse_file mm/khugepaged.c:2041 [inline] RIP: 0010:hpage_collapse_scan_file+0x4e0c/0x50e0 mm/khugepaged.c:2387 Code: ff 48 89 df 48 c7 c6 c0 8c bc 8b e8 ee 6c f6 fe 90 0f 0b 48 85 db 0f 84 29 01 00 00 e8 bd 34 91 ff 48 89 df e8 f5 c4 4b 09 90 <0f> 0b e8 ad 34 91 ff 48 89 df 48 c7 c6 c0 8c bc 8b e8 be 6c f6 fe RSP: 0018:ffffc90000ae7800 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff888054f018c0 RCX: a959510cfa6c0800 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90000ae7b10 R08: ffffc90000ae7587 R09: 1ffff9200015ceb0 R10: dffffc0000000000 R11: fffff5200015ceb1 R12: 00000003fffffffc R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881257ef000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0085b5000 CR3: 00000000780bc000 CR4: 00000000003526f0 Call Trace: khugepaged_scan_mm_slot mm/khugepaged.c:2474 [inline] khugepaged_do_scan mm/khugepaged.c:2572 [inline] khugepaged+0xa51/0x17c0 mm/khugepaged.c:2628 kthread+0x388/0x470 kernel/kthread.c:467 ret_from_fork+0x51b/0xa40 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:XAS_INVALID include/linux/xarray.h:1441 [inline] RIP: 0010:collapse_file mm/khugepaged.c:2041 [inline] RIP: 0010:hpage_collapse_scan_file+0x4e0c/0x50e0 mm/khugepaged.c:2387 Code: ff 48 89 df 48 c7 c6 c0 8c bc 8b e8 ee 6c f6 fe 90 0f 0b 48 85 db 0f 84 29 01 00 00 e8 bd 34 91 ff 48 89 df e8 f5 c4 4b 09 90 <0f> 0b e8 ad 34 91 ff 48 89 df 48 c7 c6 c0 8c bc 8b e8 be 6c f6 fe RSP: 0018:ffffc90000ae7800 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff888054f018c0 RCX: a959510cfa6c0800 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90000ae7b10 R08: ffffc90000ae7587 R09: 1ffff9200015ceb0 R10: dffffc0000000000 R11: fffff5200015ceb1 R12: 00000003fffffffc R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881256ef000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30763fff CR3: 000000007fb46000 CR4: 00000000003526f0