EXT4-fs error (device loop3): ext4_validate_block_bitmap:432: comm syz.3.19: bg 0: block 5: invalid block bitmap
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WARNING: CPU: 0 PID: 6754 at fs/ext4/ext4_jbd2.c:76 ext4_journal_check_start+0x24f/0x2b0 fs/ext4/ext4_jbd2.c:76
Modules linked in:
CPU: 0 UID: 0 PID: 6754 Comm: syz.3.19 Not tainted 6.16.0-rc6-syzkaller-00237-gc7de79e662b8 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:ext4_journal_check_start+0x24f/0x2b0 fs/ext4/ext4_jbd2.c:76
Code: 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 56 46 57 ff 41 bf fb ff ff ff eb e0 e8 49 46 57 ff eb d3 e8 42 46 57 ff 90 <0f> 0b 90 eb c8 e8 37 46 57 ff 90 0f 0b 90 43 80 7c 25 00 00 0f 85
RSP: 0018:ffffc90003cdeee0 EFLAGS: 00010293
RAX: ffffffff8268e18e RBX: ffff88806d346000 RCX: ffff88802ed45a00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000001938 R08: ffff88807823e387 R09: 1ffff1100f047c70
R10: dffffc0000000000 R11: ffffed100f047c71 R12: dffffc0000000000
R13: 1ffff1100da68cc8 R14: ffff88806d346640 R15: 0000000000000001
FS:  00007f1acf1536c0(0000) GS:ffff888125c59000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8c2d4af000 CR3: 00000000354c4000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __ext4_journal_start_sb+0x16b/0x5c0 fs/ext4/ext4_jbd2.c:108
 __ext4_journal_start fs/ext4/ext4_jbd2.h:242 [inline]
 ext4_dirty_inode+0x93/0x110 fs/ext4/inode.c:6456
 __mark_inode_dirty+0x2d1/0xdf0 fs/fs-writeback.c:2527
 mark_inode_dirty_sync include/linux/fs.h:2603 [inline]
 dquot_free_space include/linux/quotaops.h:380 [inline]
 dquot_free_block include/linux/quotaops.h:390 [inline]
 ext4_mb_new_blocks+0x2855/0x46a0 fs/ext4/mballoc.c:6263
 ext4_new_meta_blocks+0x173/0x3c0 fs/ext4/balloc.c:750
 ext4_xattr_block_set+0x1c0f/0x2ac0 fs/ext4/xattr.c:2113
 ext4_xattr_set_handle+0xdfb/0x1590 fs/ext4/xattr.c:2447
 ext4_xattr_set+0x230/0x320 fs/ext4/xattr.c:2549
 __vfs_setxattr+0x439/0x480 fs/xattr.c:200
 __vfs_setxattr_noperm+0x12d/0x660 fs/xattr.c:234
 vfs_setxattr+0x16b/0x2f0 fs/xattr.c:321
 ovl_do_setxattr fs/overlayfs/overlayfs.h:317 [inline]
 ovl_setxattr fs/overlayfs/overlayfs.h:329 [inline]
 ovl_init_uuid_xattr+0x53d/0x910 fs/overlayfs/util.c:827
 ovl_fill_super+0x2a69/0x35d0 fs/overlayfs/super.c:1430
 vfs_get_super fs/super.c:1325 [inline]
 get_tree_nodev+0xbb/0x150 fs/super.c:1344
 vfs_get_tree+0x8f/0x2b0 fs/super.c:1804
 do_new_mount+0x24a/0xa40 fs/namespace.c:3902
 do_mount fs/namespace.c:4239 [inline]
 __do_sys_mount fs/namespace.c:4450 [inline]
 __se_sys_mount+0x317/0x410 fs/namespace.c:4427
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1ace38e969
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:00007f1acf153038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f1ace5b5fa0 RCX: 00007f1ace38e969
RDX: 0000200000000000 RSI: 0000200000000080 RDI: 0000000000000000
RBP: 00007f1ace410ab1 R08: 00002000000002c0 R09: 0000000000000000
R10: 0000000000010000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1ace5b5fa0 R15: 00007fff1bcc1168
 </TASK>