EXT4-fs error (device loop1): ext4_mb_generate_buddy:1097: group 0, block bitmap and bg descriptor inconsistent: 223 vs 220 free clusters EXT4-fs (loop1): Remounting filesystem read-only ------------[ cut here ]------------ EA inode 11 i_nlink=2 WARNING: CPU: 1 PID: 4663 at fs/ext4/xattr.c:1022 ext4_xattr_inode_update_ref+0x42c/0x470 fs/ext4/xattr.c:1020 Modules linked in: CPU: 1 PID: 4663 Comm: syz.1.93 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : ext4_xattr_inode_update_ref+0x42c/0x470 fs/ext4/xattr.c:1020 lr : ext4_xattr_inode_update_ref+0x42c/0x470 fs/ext4/xattr.c:1020 sp : ffff800020ea6f60 x29: ffff800020ea7000 x28: 0000000000000000 x27: dfff800000000000 x26: 1fffe0001c4e6095 x25: ffff7000041d4df0 x24: 0000000000000000 x23: ffff800017a8a000 x22: ffff0000e27302f0 x21: 0000000000000002 x20: 0000000000000001 x19: ffff0000e27302b0 x18: ffff800011abbcc0 x17: 0000000000000000 x16: ffff8000082d25ac x15: 0000000000000002 x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000080000 x11: 000000000003fa55 x10: ffff800021acd000 x9 : c35b18424c2d8900 x8 : c35b18424c2d8900 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800020ea69f8 x4 : ffff8000151a4920 x3 : ffff80000852e538 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: ext4_xattr_inode_update_ref+0x42c/0x470 fs/ext4/xattr.c:1020 ext4_xattr_inode_dec_ref fs/ext4/xattr.c:1045 [inline] ext4_xattr_inode_dec_ref_all+0x8b4/0xd48 fs/ext4/xattr.c:1187 ext4_xattr_delete_inode+0x870/0xa00 fs/ext4/xattr.c:2915 ext4_evict_inode+0xcd0/0x1270 fs/ext4/inode.c:296 evict+0x3c8/0x810 fs/inode.c:705 iput_final fs/inode.c:1834 [inline] iput+0x764/0x7f4 fs/inode.c:1860 ext4_process_orphan+0x240/0x2b4 fs/ext4/orphan.c:356 ext4_orphan_cleanup+0x908/0x104c fs/ext4/orphan.c:470 __ext4_fill_super fs/ext4/super.c:5530 [inline] ext4_fill_super+0x6440/0x68a8 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 irq event stamp: 3248 hardirqs last enabled at (3247): [] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:261 hardirqs last disabled at (3248): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (3036): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (3036): [] handle_softirqs+0xaf8/0xc6c kernel/softirq.c:624 softirqs last disabled at (3009): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop1): 1 orphan inode deleted EXT4-fs (loop1): mounted filesystem without journal. Quota mode: none.