------------[ cut here ]------------
kernel BUG at fs/ext4/ext4_extents.h:200!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 7157 Comm: syz-executor.0 Not tainted 6.7.0-rc7-syzkaller-g861deac3b092 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:ext4_ext_mark_unwritten fs/ext4/ext4_extents.h:200 [inline]
RIP: 0010:ext4_ext_mark_unwritten fs/ext4/ext4_extents.h:197 [inline]
RIP: 0010:ext4_split_extent_at+0xd44/0xe10 fs/ext4/extents.c:3221
Code: 80 eb 83 e8 9e 15 58 ff 41 81 ec 00 80 00 00 e9 21 ff ff ff e8 8d 15 58 ff 90 0f 0b e8 85 15 58 ff 90 0f 0b e8 7d 15 58 ff 90 <0f> 0b 48 8b 7c 24 20 e8 b0 bf ae ff e9 4c f3 ff ff e8 a6 bf ae ff
RSP: 0018:ffffc90009917268 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff8880766e800c RCX: ffffffff822f5ae3
RDX: ffff8880782b8000 RSI: ffffffff822f5c53 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000004 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90009917310
FS:  00007f2930e1f6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4e24ac56be CR3: 0000000078afa000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 ext4_split_extent+0x3f3/0x520 fs/ext4/extents.c:3384
 ext4_ext_handle_unwritten_extents fs/ext4/extents.c:3874 [inline]
 ext4_ext_map_blocks+0x309e/0x5ae0 fs/ext4/extents.c:4166
 ext4_map_blocks+0x619/0x1770 fs/ext4/inode.c:621
 ext4_iomap_alloc fs/ext4/inode.c:3320 [inline]
 ext4_iomap_begin+0x46e/0x7d0 fs/ext4/inode.c:3370
 iomap_iter+0x488/0xfe0 fs/iomap/iter.c:91
 __iomap_dio_rw+0x6c4/0x1bc0 fs/iomap/direct-io.c:658
 iomap_dio_rw+0x40/0xa0 fs/iomap/direct-io.c:748
 ext4_dio_write_iter fs/ext4/file.c:577 [inline]
 ext4_file_write_iter+0x12c2/0x1950 fs/ext4/file.c:696
 call_write_iter include/linux/fs.h:2020 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x64f/0xdf0 fs/read_write.c:584
 ksys_write+0x12f/0x250 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f293007cb29
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:00007f2930e1f0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f293019c050 RCX: 00007f293007cb29
RDX: 0000000000000012 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00007f29300c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f293019c050 R15: 00007ffcdeaab028
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_ext_mark_unwritten fs/ext4/ext4_extents.h:200 [inline]
RIP: 0010:ext4_ext_mark_unwritten fs/ext4/ext4_extents.h:197 [inline]
RIP: 0010:ext4_split_extent_at+0xd44/0xe10 fs/ext4/extents.c:3221
Code: 80 eb 83 e8 9e 15 58 ff 41 81 ec 00 80 00 00 e9 21 ff ff ff e8 8d 15 58 ff 90 0f 0b e8 85 15 58 ff 90 0f 0b e8 7d 15 58 ff 90 <0f> 0b 48 8b 7c 24 20 e8 b0 bf ae ff e9 4c f3 ff ff e8 a6 bf ae ff
RSP: 0018:ffffc90009917268 EFLAGS: 00010293

RAX: 0000000000000000 RBX: ffff8880766e800c RCX: ffffffff822f5ae3
RDX: ffff8880782b8000 RSI: ffffffff822f5c53 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000004 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90009917310
FS:  00007f2930e1f6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c0014e1000 CR3: 0000000078afa000 CR4: 0000000000350ef0