netlink: 16 bytes leftover after parsing attributes in process `syz.5.490'.
loop5: detected capacity change from 0 to 512
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 7667 Comm: syz.5.490 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
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x6c/0xb4 kernel/locking/spinlock.c:162
 __debug_check_no_obj_freed lib/debugobjects.c:968 [inline]
 debug_check_no_obj_freed+0x148/0x46c lib/debugobjects.c:1009
 free_pages_prepare mm/page_alloc.c:1465 [inline]
 free_pcp_prepare mm/page_alloc.c:1509 [inline]
 free_unref_page_prepare+0x71c/0xb18 mm/page_alloc.c:3384
 free_unref_page_list+0xd8/0x8ec mm/page_alloc.c:3525
 release_pages+0xd84/0xfac mm/swap.c:1035
 folios_put include/linux/mm.h:1221 [inline]
 folio_batch_move_lru+0x3b4/0x4c4 mm/swap.c:245
 lru_add_drain_cpu+0xc0/0x4ec mm/swap.c:661
 lru_add_drain+0x8c/0x168 mm/swap.c:765
 __pagevec_release+0x5c/0xf8 mm/swap.c:1052
 pagevec_release include/linux/pagevec.h:71 [inline]
 folio_batch_release include/linux/pagevec.h:135 [inline]
 truncate_inode_pages_range+0xae4/0xd20 mm/truncate.c:430
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:451
 kill_bdev block/bdev.c:76 [inline]
 set_blocksize+0x25c/0x2d4 block/bdev.c:152
 sb_set_blocksize block/bdev.c:161 [inline]
 sb_min_blocksize+0xb8/0x184 block/bdev.c:177
 ext4_load_super fs/ext4/super.c:4937 [inline]
 __ext4_fill_super fs/ext4/super.c:5062 [inline]
 ext4_fill_super+0x594/0x68a8 fs/ext4/super.c:5661
 get_tree_bdev+0x358/0x544 fs/super.c:1366
 ext4_get_tree+0x28/0x38 fs/ext4/super.c:5691
 vfs_get_tree+0x90/0x274 fs/super.c:1573
 do_new_mount+0x228/0x810 fs/namespace.c:3078
 path_mount+0x5b4/0xe78 fs/namespace.c:3408
 do_mount fs/namespace.c:3421 [inline]
 __do_sys_mount fs/namespace.c:3629 [inline]
 __se_sys_mount fs/namespace.c:3606 [inline]
 __arm64_sys_mount+0x49c/0x584 fs/namespace.c:3606
 __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
EXT4-fs (loop5): ext4_check_descriptors: Checksum for group 0 failed (17031!=33349)
EXT4-fs (loop5): can't mount with data_err=abort, fs mounted w/o journal