loop5: detected capacity change from 0 to 131072
F2FS-fs (loop5): Found nat_bits in checkpoint
F2FS-fs (loop5): Mounted with checkpoint version = 753bd00b
fscrypt: AES-256-XTS using implementation "xts-aes-ce"
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 1 PID: 7432 Comm: syz.5.633 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3772 [inline]
 validate_chain kernel/locking/lockdep.c:3793 [inline]
 __lock_acquire+0x1b40/0x6544 kernel/locking/lockdep.c:5049
 lock_acquire+0x20c/0x644 kernel/locking/lockdep.c:5662
 local_lock_acquire+0x44/0x14c include/linux/local_lock_internal.h:29
 consume_stock mm/memcontrol.c:2235 [inline]
 try_charge_memcg+0x19c/0x1448 mm/memcontrol.c:2645
 try_charge mm/memcontrol.c:2826 [inline]
 charge_memcg+0xa4/0x1f4 mm/memcontrol.c:6923
 __mem_cgroup_charge+0x38/0xb0 mm/memcontrol.c:6944
 mem_cgroup_charge include/linux/memcontrol.h:672 [inline]
 __filemap_add_folio+0x84c/0xfb4 mm/filemap.c:854
 filemap_add_folio+0xb0/0x20c mm/filemap.c:962
 __filemap_get_folio+0x6ec/0xab0 mm/filemap.c:2004
 pagecache_get_page+0x3c/0x16c mm/folio-compat.c:110
 f2fs_pagecache_get_page fs/f2fs/f2fs.h:2750 [inline]
 f2fs_write_begin+0x454/0x1ce0 fs/f2fs/data.c:3601
 generic_perform_write+0x230/0x4b0 mm/filemap.c:3846
 f2fs_buffered_write_iter fs/f2fs/file.c:4658 [inline]
 f2fs_file_write_iter+0x16c4/0x1d50 fs/f2fs/file.c:4851
 call_write_iter include/linux/fs.h:2265 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x5ac/0x7c4 fs/read_write.c:584
 ksys_write+0x120/0x210 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __arm64_sys_write+0x7c/0x90 fs/read_write.c:646
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585