EXT4-fs error (device loop3): ext4_mb_generate_buddy:1220: group 0, block bitmap and bg descriptor inconsistent: 191 vs 220 free clusters
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8449 at fs/ext4/ext4_jbd2.c:73 ext4_journal_check_start+0x1ed/0x250 fs/ext4/ext4_jbd2.c:73
Modules linked in:
CPU: 0 UID: 0 PID: 8449 Comm: syz.3.289 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:ext4_journal_check_start+0x1ed/0x250 fs/ext4/ext4_jbd2.c:73
Code: 41 bf e2 ff ff ff 44 89 f8 5b 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc e8 01 56 4d ff 41 bf fb ff ff ff eb e2 e8 f4 55 4d ff 90 <0f> 0b 90 eb d1 e8 e9 55 4d ff 90 0f 0b 90 43 80 7c 25 00 00 0f 85
RSP: 0018:ffffc900043fed08 EFLAGS: 00010283
RAX: ffffffff82748a2c RBX: 0000000000000001 RCX: 0000000000080000
RDX: ffffc9000bd39000 RSI: 000000000000cb00 RDI: 000000000000cb01
RBP: 0000000000000001 R08: ffffffff82748900 R09: 1ffff110049c8070
R10: dffffc0000000000 R11: ffffed10049c8071 R12: dffffc0000000000
R13: 1ffff1100c1684c7 R14: ffff888060b42000 R15: ffff888060b42638
FS:  00007fc25551d6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5f743dc000 CR3: 000000004bce6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __ext4_journal_start_sb+0x181/0x600 fs/ext4/ext4_jbd2.c:105
 __ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline]
 ext4_dirty_inode+0x92/0x110 fs/ext4/inode.c:6039
 __mark_inode_dirty+0x2ee/0xe90 fs/fs-writeback.c:2515
 mark_inode_dirty_sync include/linux/fs.h:2552 [inline]
 dquot_free_space include/linux/quotaops.h:380 [inline]
 dquot_free_block include/linux/quotaops.h:390 [inline]
 ext4_mb_new_blocks+0x2d60/0x4e00 fs/ext4/mballoc.c:6265
 ext4_new_meta_blocks+0x20d/0x510 fs/ext4/balloc.c:750
 ext4_xattr_block_set+0x1f17/0x32d0 fs/ext4/xattr.c:2121
 ext4_xattr_set_handle+0xce0/0x1580 fs/ext4/xattr.c:2458
 ext4_xattr_set+0x280/0x3e0 fs/ext4/xattr.c:2560
 __vfs_setxattr+0x468/0x4a0 fs/xattr.c:200
 __vfs_setxattr_noperm+0x12e/0x660 fs/xattr.c:234
 vfs_setxattr+0x221/0x430 fs/xattr.c:321
 ovl_do_setxattr fs/overlayfs/overlayfs.h:314 [inline]
 ovl_setxattr fs/overlayfs/overlayfs.h:326 [inline]
 ovl_init_uuid_xattr+0x516/0x900 fs/overlayfs/util.c:824
 ovl_fill_super+0x2a51/0x3640 fs/overlayfs/super.c:1418
 vfs_get_super fs/super.c:1280 [inline]
 get_tree_nodev+0xb7/0x140 fs/super.c:1299
 vfs_get_tree+0x90/0x2b0 fs/super.c:1814
 do_new_mount+0x2be/0xb40 fs/namespace.c:3560
 do_mount fs/namespace.c:3900 [inline]
 __do_sys_mount fs/namespace.c:4111 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc25478d169
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc25551d038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fc2549a5fa0 RCX: 00007fc25478d169
RDX: 0000200000000000 RSI: 0000200000000080 RDI: 0000000000000000
RBP: 00007fc25480e2a0 R08: 00002000000002c0 R09: 0000000000000000
R10: 0000000000010000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc2549a5fa0 R15: 00007fff359fefa8
 </TASK>