------------[ cut here ]------------
UBSAN: shift-out-of-bounds in lib/xarray.c:147:16
shift exponent 128 is too large for 64-bit type 'unsigned long'
CPU: 0 UID: 0 PID: 29 Comm: kcompactd1 Not tainted 6.14.0-rc3-syzkaller-g87a132e73910 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 ubsan_epilogue lib/ubsan.c:231 [inline]
 __ubsan_handle_shift_out_of_bounds+0x3c8/0x420 lib/ubsan.c:468
 get_offset lib/xarray.c:147 [inline]
 xas_descend lib/xarray.c:207 [inline]
 xas_create+0x1832/0x1ae0 lib/xarray.c:695
 xas_store+0x96/0x1870 lib/xarray.c:794
 __folio_migrate_mapping+0x12e2/0x2550 mm/migrate.c:542
 __migrate_folio mm/migrate.c:764 [inline]
 migrate_folio+0x10a/0x1a0 mm/migrate.c:791
 move_to_new_folio+0x2ac/0xc20 mm/migrate.c:1052
 migrate_folio_move mm/migrate.c:1360 [inline]
 migrate_folios_move mm/migrate.c:1712 [inline]
 migrate_pages_batch+0x1e84/0x30b0 mm/migrate.c:1959
 migrate_pages_sync mm/migrate.c:1989 [inline]
 migrate_pages+0x2007/0x3680 mm/migrate.c:2098
 compact_zone+0x33d5/0x4ae0 mm/compaction.c:2663
 compact_node+0x2de/0x460 mm/compaction.c:2932
 kcompactd+0x6cd/0x14b0 mm/compaction.c:3226
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
---[ end trace ]---