------------[ cut here ]------------
kernel BUG at fs/ext4/extents.c:3204!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 7261 Comm: syz-executor.3 Not tainted 6.5.0-syzkaller-12728-ga48fa7efaf11 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:ext4_split_extent_at+0x7de/0xe10 fs/ext4/extents.c:3204
Code: a3 8a 48 8b 5c 24 10 48 8b 54 24 18 0f b7 43 08 4c 8d 04 40 49 c1 e0 04 49 01 d8 e8 ac 59 ff ff e9 1f fd ff ff e8 b2 1e 59 ff <0f> 0b e8 ab 1e 59 ff 48 8b 74 24 30 48 b8 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90009d07258 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888071b2200c RCX: 0000000000000000
RDX: ffff888026703b80 RSI: ffffffff822eb30e RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000004 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90009d07300
FS:  00007fe5c29536c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f34c503e000 CR3: 0000000065ba7000 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+0x3097/0x5b10 fs/ext4/extents.c:4166
 ext4_map_blocks+0x619/0x1770 fs/ext4/inode.c:621
 ext4_iomap_alloc fs/ext4/inode.c:3310 [inline]
 ext4_iomap_begin+0x46c/0x7d0 fs/ext4/inode.c:3360
 iomap_iter+0x488/0x1120 fs/iomap/iter.c:91
 __iomap_dio_rw+0x6f0/0x1d70 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:605 [inline]
 ext4_file_write_iter+0x1081/0x1860 fs/ext4/file.c:715
 call_write_iter include/linux/fs.h:1985 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x650/0xe40 fs/read_write.c:584
 ksys_write+0x12f/0x250 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe5c1c7cb29
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:00007fe5c29530c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fe5c1d9c050 RCX: 00007fe5c1c7cb29
RDX: 0000000000000012 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00007fe5c1cc847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fe5c1d9c050 R15: 00007ffd51f035f8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_split_extent_at+0x7de/0xe10 fs/ext4/extents.c:3204
Code: a3 8a 48 8b 5c 24 10 48 8b 54 24 18 0f b7 43 08 4c 8d 04 40 49 c1 e0 04 49 01 d8 e8 ac 59 ff ff e9 1f fd ff ff e8 b2 1e 59 ff <0f> 0b e8 ab 1e 59 ff 48 8b 74 24 30 48 b8 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90009d07258 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888071b2200c RCX: 0000000000000000
RDX: ffff888026703b80 RSI: ffffffff822eb30e RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000004 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90009d07300
FS:  00007fe5c29536c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f34cedbad58 CR3: 0000000065ba7000 CR4: 0000000000350ef0