EXT4-fs error (device loop5): ext4_find_dest_de:2054: inode #12: block 7: comm syz.5.26: bad entry in directory: rec_len % 4 != 0 - offset=0, inode=4278190093, rec_len=255, size=56 fake=0
overlayfs: failed to create directory ./file0/work (errno: 117); mounting read-only
EXT4-fs error (device loop5): ext4_validate_block_bitmap:432: comm syz.5.26: bg 0: block 5: invalid block bitmap
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6293 at fs/ext4/ext4_jbd2.c:75 ext4_journal_check_start+0x24f/0x2b0 fs/ext4/ext4_jbd2.c:75
Modules linked in:
CPU: 1 UID: 0 PID: 6293 Comm: syz.5.26 Not tainted 6.15.0-rc6-syzkaller-00208-g3c21441eeffc #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:75
Code: 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 36 b0 57 ff 41 bf fb ff ff ff eb e0 e8 29 b0 57 ff eb d3 e8 22 b0 57 ff 90 <0f> 0b 90 eb c8 e8 17 b0 57 ff 90 0f 0b 90 43 80 7c 25 00 00 0f 85
RSP: 0018:ffffc9000387ef00 EFLAGS: 00010293
RAX: ffffffff826840de RBX: ffff8880329a2000 RCX: ffff888025008000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 00000000000017d4 R08: ffff88806381e387 R09: 1ffff1100c703c70
R10: dffffc0000000000 R11: ffffed100c703c71 R12: dffffc0000000000
R13: 1ffff110065344c7 R14: ffff8880329a2638 R15: 0000000000000001
FS:  00007f773f0b06c0(0000) GS:ffff8881261f9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563428edc950 CR3: 0000000027562000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __ext4_journal_start_sb+0x16b/0x5c0 fs/ext4/ext4_jbd2.c:107
 __ext4_journal_start fs/ext4/ext4_jbd2.h:242 [inline]
 ext4_dirty_inode+0x93/0x110 fs/ext4/inode.c:6100
 __mark_inode_dirty+0x2d1/0xdf0 fs/fs-writeback.c:2527
 mark_inode_dirty_sync include/linux/fs.h:2550 [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:315 [inline]
 ovl_setxattr fs/overlayfs/overlayfs.h:327 [inline]
 ovl_init_uuid_xattr+0x53d/0x910 fs/overlayfs/util.c:824
 ovl_fill_super+0x2a69/0x35d0 fs/overlayfs/super.c:1430
 vfs_get_super fs/super.c:1280 [inline]
 get_tree_nodev+0xbb/0x150 fs/super.c:1299
 vfs_get_tree+0x92/0x2b0 fs/super.c:1759
 do_new_mount+0x24a/0xa40 fs/namespace.c:3881
 do_mount fs/namespace.c:4221 [inline]
 __do_sys_mount fs/namespace.c:4432 [inline]
 __se_sys_mount+0x317/0x410 fs/namespace.c:4409
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f773e18e969
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:00007f773f0b0038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f773e3b5fa0 RCX: 00007f773e18e969
RDX: 0000200000000000 RSI: 0000200000000080 RDI: 0000000000000000
RBP: 00007f773e210ab1 R08: 00002000000002c0 R09: 0000000000000000
R10: 0000000000010000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f773e3b5fa0 R15: 00007fff18937348
 </TASK>