loop0: detected capacity change from 0 to 2048
EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs error (device loop0): ext4_mb_generate_buddy:1220: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters
EXT4-fs (loop0): Delayed block allocation failed for inode 15 at logical offset 65537 with max blocks 1 with error 28
EXT4-fs (loop0): This should not happen!! Data will be lost
EXT4-fs (loop0): Total free blocks count 0
EXT4-fs (loop0): Free/Dirty block details
EXT4-fs (loop0): free_blocks=2415919104
EXT4-fs (loop0): dirty_blocks=32
EXT4-fs (loop0): Block reservation details
EXT4-fs (loop0): i_reserved_data_blocks=2
------------[ cut here ]------------
kernel BUG at fs/ext4/inline.c:240!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5330 Comm: syz.0.0 Not tainted 6.15.0-rc2-syzkaller-00257-gb5c6891b2c5b #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:ext4_write_inline_data+0x3fc/0x400 fs/ext4/inline.c:240
Code: 89 f1 80 e1 07 fe c1 38 c1 0f 8c 1d ff ff ff 4c 89 f7 e8 37 29 ab ff e9 10 ff ff ff e8 9d ea 40 ff 90 0f 0b e8 95 ea 40 ff 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f
RSP: 0018:ffffc9000d5177d8 EFLAGS: 00010283
RAX: ffffffff8281d02b RBX: 000000000000003c RCX: 0000000000100000
RDX: ffffc9000def2000 RSI: 000000000000036c RDI: 000000000000036d
RBP: ffff88804486eb6c R08: ffffffff8281cdb6 R09: 1ffff1100246cc70
R10: dffffc0000000000 R11: ffffed100246cc71 R12: 0000010000000006
R13: dffffc0000000000 R14: 0000000000000001 R15: ffffc9000d5178c0
FS:  00007fc115e6e6c0(0000) GS:ffff88808c59a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000003a80 CR3: 0000000045472000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_write_inline_data_end+0x2f9/0xa90 fs/ext4/inline.c:797
 generic_perform_write+0x70b/0xa10 mm/filemap.c:4124
 ext4_buffered_write_iter+0xc7/0x390 fs/ext4/file.c:299
 ext4_file_write_iter+0x97f/0x1da0 fs/ext4/file.c:-1
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0x70f/0xd10 fs/read_write.c:684
 ksys_pwrite64 fs/read_write.c:791 [inline]
 __do_sys_pwrite64 fs/read_write.c:799 [inline]
 __se_sys_pwrite64 fs/read_write.c:796 [inline]
 __x64_sys_pwrite64+0x1b5/0x250 fs/read_write.c:796
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc114f8e169
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:00007fc115e6e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fc1151b5fa0 RCX: 00007fc114f8e169
RDX: 0000000000000001 RSI: 0000200000000300 RDI: 0000000000000007
RBP: 00007fc115010a68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000010000000005 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc1151b5fa0 R15: 00007ffdfa8afd58
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_write_inline_data+0x3fc/0x400 fs/ext4/inline.c:240
Code: 89 f1 80 e1 07 fe c1 38 c1 0f 8c 1d ff ff ff 4c 89 f7 e8 37 29 ab ff e9 10 ff ff ff e8 9d ea 40 ff 90 0f 0b e8 95 ea 40 ff 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f
RSP: 0018:ffffc9000d5177d8 EFLAGS: 00010283
RAX: ffffffff8281d02b RBX: 000000000000003c RCX: 0000000000100000
RDX: ffffc9000def2000 RSI: 000000000000036c RDI: 000000000000036d
RBP: ffff88804486eb6c R08: ffffffff8281cdb6 R09: 1ffff1100246cc70
R10: dffffc0000000000 R11: ffffed100246cc71 R12: 0000010000000006
R13: dffffc0000000000 R14: 0000000000000001 R15: ffffc9000d5178c0
FS:  00007fc115e6e6c0(0000) GS:ffff88808c59a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc115e4cfd8 CR3: 0000000045472000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400