BUG: sleeping function called from invalid context at mm/util.c:743 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 7320, name: syz.4.114 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 1 lock held by syz.4.114/7320: #0: ffff0000c14ab7d8 (&mapping->i_private_lock){+.+.}-{3:3}, at: spin_lock include/linux/spinlock.h:351 [inline] #0: ffff0000c14ab7d8 (&mapping->i_private_lock){+.+.}-{3:3}, at: __buffer_migrate_folio+0x398/0x784 mm/migrate.c:853 Preemption disabled at: [] spin_lock include/linux/spinlock.h:351 [inline] [] __buffer_migrate_folio+0x398/0x784 mm/migrate.c:853 CPU: 1 UID: 0 PID: 7320 Comm: syz.4.114 Not tainted 6.15.0-rc2-syzkaller-gc72692105976 #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:466 (C) __dump_stack+0x30/0x40 lib/dump_stack.c:94 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120 dump_stack+0x1c/0x28 lib/dump_stack.c:129 __might_resched+0x348/0x4c4 kernel/sched/core.c:8818 folio_mc_copy+0xf0/0x160 mm/util.c:743 __migrate_folio+0x138/0x518 mm/migrate.c:758 filemap_migrate_folio mm/migrate.c:943 [inline] __buffer_migrate_folio+0x564/0x784 mm/migrate.c:874 buffer_migrate_folio_norefs+0x40/0x54 mm/migrate.c:935 move_to_new_folio+0x21c/0xb04 mm/migrate.c:1050 migrate_folio_move mm/migrate.c:1358 [inline] migrate_folios_move mm/migrate.c:1710 [inline] migrate_pages_batch+0x18fc/0x236c mm/migrate.c:1957 migrate_pages_sync mm/migrate.c:1987 [inline] migrate_pages+0x1b48/0x2864 mm/migrate.c:2096 do_mbind mm/mempolicy.c:1425 [inline] kernel_mbind mm/mempolicy.c:1568 [inline] __do_sys_mbind mm/mempolicy.c:1642 [inline] __se_sys_mbind mm/mempolicy.c:1638 [inline] __arm64_sys_mbind+0xa14/0xc0c mm/mempolicy.c:1638 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600