------------[ cut here ]------------
kernel BUG at fs/ext4/ext4_extents.h:200!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 1987 Comm: syz-executor.5 Not tainted 6.4.0-rc5-syzkaller-00136-g8d15d5e1851b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:ext4_ext_mark_unwritten fs/ext4/ext4_extents.h:200 [inline]
RIP: 0010:ext4_split_extent_at+0x10f0/0x1100 fs/ext4/extents.c:3221
Code: f9 cd ff 48 8b 54 24 70 48 8b 74 24 60 e9 3b fa ff ff e8 e3 0e 84 ff 0f 0b e8 dc 0e 84 ff 0f 0b e8 65 d7 fb 02 e8 d0 0e 84 ff <0f> 0b e8 c9 0e 84 ff 0f 0b e8 c2 0e 84 ff 0f 0b 55 48 89 e5 41 57
RSP: 0018:ffffc90001a06e60 EFLAGS: 00010293
RAX: ffffffff81f1d930 RBX: 0000000000000000 RCX: ffff888118bf2180
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90001a06fd8 R08: ffffffff81f1cd0c R09: ffffed1024883712
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff888116516700 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f28b041c700(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002003f000 CR3: 0000000122f19000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_split_extent+0x370/0x4e0 fs/ext4/extents.c:3384
 ext4_split_convert_extents fs/ext4/extents.c:3713 [inline]
 ext4_ext_handle_unwritten_extents fs/ext4/extents.c:3875 [inline]
 ext4_ext_map_blocks+0x2122/0x7200 fs/ext4/extents.c:4167
 ext4_map_blocks+0xa46/0x1ce0 fs/ext4/inode.c:623
 ext4_iomap_alloc fs/ext4/inode.c:3298 [inline]
 ext4_iomap_begin+0x81f/0xd30 fs/ext4/inode.c:3348
 iomap_iter+0x658/0xce0 fs/iomap/iter.c:91
 __iomap_dio_rw+0xd6a/0x21e0 fs/iomap/direct-io.c:597
 iomap_dio_rw+0x45/0x90 fs/iomap/direct-io.c:688
 ext4_dio_write_iter fs/ext4/file.c:597 [inline]
 ext4_file_write_iter+0x1103/0x1cf0 fs/ext4/file.c:708
 call_write_iter include/linux/fs.h:1868 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x854/0xd90 fs/read_write.c:584
 ksys_write+0x19d/0x2c0 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __x64_sys_write+0x7f/0x90 fs/read_write.c:646
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f28af68c169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f28b041c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f28af7ac050 RCX: 00007f28af68c169
RDX: 0000000000000012 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00007f28af6e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff6096631f R14: 00007f28b041c300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_ext_mark_unwritten fs/ext4/ext4_extents.h:200 [inline]
RIP: 0010:ext4_split_extent_at+0x10f0/0x1100 fs/ext4/extents.c:3221
Code: f9 cd ff 48 8b 54 24 70 48 8b 74 24 60 e9 3b fa ff ff e8 e3 0e 84 ff 0f 0b e8 dc 0e 84 ff 0f 0b e8 65 d7 fb 02 e8 d0 0e 84 ff <0f> 0b e8 c9 0e 84 ff 0f 0b e8 c2 0e 84 ff 0f 0b 55 48 89 e5 41 57
RSP: 0018:ffffc90001a06e60 EFLAGS: 00010293
RAX: ffffffff81f1d930 RBX: 0000000000000000 RCX: ffff888118bf2180
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90001a06fd8 R08: ffffffff81f1cd0c R09: ffffed1024883712
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff888116516700 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f28b041c700(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb9e0315e09 CR3: 0000000122f19000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400