EXT4-fs error (device loop0): ext4_fill_super:4831: inode #2: comm syz-executor.0: casefold flag without casefold feature
EXT4-fs (loop0): warning: mounting fs with errors, running e2fsck is recommended
EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: none.
------------[ cut here ]------------
kernel BUG at fs/ext4/inline.c:781!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 529 Comm: syz-executor.0 Not tainted 5.15.137-syzkaller-1068730-g61cfd264993d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
RIP: 0010:ext4_write_inline_data_end+0xe13/0xe30 fs/ext4/inline.c:781
Code: f8 ff ff 44 89 f9 80 e1 07 fe c1 38 c1 0f 8c 28 fa ff ff 4c 89 ff e8 9c cc cc ff e9 1b fa ff ff e8 62 d3 db 02 e8 bd e3 8a ff <0f> 0b e8 b6 e3 8a ff 0f 0b e8 af e3 8a ff 0f 0b e8 a8 e3 8a ff 0f
RSP: 0018:ffffc900010a7680 EFLAGS: 00010293
RAX: ffffffff81e51143 RBX: 0000000000000000 RCX: ffff888111fc2780
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900010a77d8 R08: ffffffff81e505b0 R09: ffffed1024798181
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000007 R14: 0000004c00000000 R15: 1ffff11024798180
FS:  00007fe3bec666c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000180 CR3: 00000001242a3000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_write_end+0x374/0xa00 fs/ext4/inode.c:1311
 ext4_da_write_end+0x88/0xab0 fs/ext4/inode.c:3071
 generic_perform_write+0x3b4/0x5a0 mm/filemap.c:3844
 ext4_buffered_write_iter+0x48a/0x610 fs/ext4/file.c:270
 ext4_file_write_iter+0x443/0x1c80
 call_write_iter include/linux/fs.h:2159 [inline]
 new_sync_write fs/read_write.c:507 [inline]
 vfs_write+0xd5d/0x1110 fs/read_write.c:594
 ksys_write+0x199/0x2c0 fs/read_write.c:647
 __do_sys_write fs/read_write.c:659 [inline]
 __se_sys_write fs/read_write.c:656 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:656
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fe3bf0e3ae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe3bec660c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fe3bf202f80 RCX: 00007fe3bf0e3ae9
RDX: 0000000000000007 RSI: 0000000020000180 RDI: 0000000000000004
RBP: 00007fe3bf12f47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fe3bf202f80 R15: 00007ffd0b924498
 </TASK>
Modules linked in:
---[ end trace e1adb05eab1a4e6c ]---
RIP: 0010:ext4_write_inline_data_end+0xe13/0xe30 fs/ext4/inline.c:781
Code: f8 ff ff 44 89 f9 80 e1 07 fe c1 38 c1 0f 8c 28 fa ff ff 4c 89 ff e8 9c cc cc ff e9 1b fa ff ff e8 62 d3 db 02 e8 bd e3 8a ff <0f> 0b e8 b6 e3 8a ff 0f 0b e8 af e3 8a ff 0f 0b e8 a8 e3 8a ff 0f
RSP: 0018:ffffc900010a7680 EFLAGS: 00010293
RAX: ffffffff81e51143 RBX: 0000000000000000 RCX: ffff888111fc2780
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900010a77d8 R08: ffffffff81e505b0 R09: ffffed1024798181
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000007 R14: 0000004c00000000 R15: 1ffff11024798180
FS:  00007fe3bec666c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000180 CR3: 00000001242a3000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400