0 0 0 ------------[ cut here ]------------ kernel BUG at ./include/linux/xarray.h:1441! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 37 Comm: khugepaged Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:XAS_INVALID include/linux/xarray.h:1441 [inline] RIP: 0010:collapse_file mm/khugepaged.c:2055 [inline] RIP: 0010:collapse_scan_file+0x4fba/0x5220 mm/khugepaged.c:2404 Code: ff 4c 89 e7 48 c7 c6 60 b3 dc 8b e8 00 e4 f1 fe 90 0f 0b 48 85 db 0f 84 d1 00 00 00 e8 0f 10 90 ff 48 89 df e8 d7 e1 77 09 90 <0f> 0b e8 ff 0f 90 ff 48 89 df 48 c7 c6 60 b3 dc 8b e8 d0 e3 f1 fe RSP: 0018:ffffc90000ad7500 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff888058002100 RCX: 7b09254fc2bf1100 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90000ad7810 R08: ffffc90000ad7287 R09: 1ffff9200015ae50 R10: dffffc0000000000 R11: fffff5200015ae51 R12: dffffc0000000000 R13: ffffea000141bd70 R14: 0000000000000000 R15: ffffc90000ad76f0 FS: 0000000000000000(0000) GS:ffff888125449000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31722ff8 CR3: 0000000032aca000 CR4: 00000000003526f0 Call Trace: collapse_single_pmd+0x22b/0x4480 mm/khugepaged.c:2437 collapse_scan_mm_slot mm/khugepaged.c:2542 [inline] khugepaged_do_scan mm/khugepaged.c:2622 [inline] khugepaged+0x91f/0x14d0 mm/khugepaged.c:2677 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x51e/0xb90 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:2055 [inline] RIP: 0010:collapse_scan_file+0x4fba/0x5220 mm/khugepaged.c:2404 Code: ff 4c 89 e7 48 c7 c6 60 b3 dc 8b e8 00 e4 f1 fe 90 0f 0b 48 85 db 0f 84 d1 00 00 00 e8 0f 10 90 ff 48 89 df e8 d7 e1 77 09 90 <0f> 0b e8 ff 0f 90 ff 48 89 df 48 c7 c6 60 b3 dc 8b e8 d0 e3 f1 fe RSP: 0018:ffffc90000ad7500 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff888058002100 RCX: 7b09254fc2bf1100 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90000ad7810 R08: ffffc90000ad7287 R09: 1ffff9200015ae50 R10: dffffc0000000000 R11: fffff5200015ae51 R12: dffffc0000000000 R13: ffffea000141bd70 R14: 0000000000000000 R15: ffffc90000ad76f0 FS: 0000000000000000(0000) GS:ffff888125449000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fafc2171d58 CR3: 00000000270e6000 CR4: 00000000003526f0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083 DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400