------------[ cut here ]------------
kernel BUG at fs/ext4/extents.c:3204!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 1177 Comm: syz-executor.1 Not tainted 5.15.106-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:ext4_split_extent_at+0xc28/0x10f0 fs/ext4/extents.c:3204
Code: ff e8 5c 5d 92 ff 48 89 df 48 8d b4 24 00 01 00 00 e8 0c 06 00 00 e9 4f fa ff ff b0 01 84 c0 0f 84 2e f6 ff ff e8 38 5d 92 ff <0f> 0b 89 d9 80 e1 07 fe c1 38 c1 0f 8c da f4 ff ff 48 89 df e8 2f
RSP: 0018:ffffc9000282ee40 EFLAGS: 00010293
RAX: ffffffff81db9288 RBX: 0000000000000000 RCX: ffff88811f633000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000282efb8 R08: ffffffff81db889a R09: ffffc9000282ef40
R10: fffff52000505de9 R11: dffffc0000000001 R12: 1ffff92000505de0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fb59de07700(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002003f000 CR3: 000000011c084000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_split_extent+0x370/0x4e0 fs/ext4/extents.c:3385
 ext4_split_convert_extents fs/ext4/extents.c:3714 [inline]
 ext4_ext_handle_unwritten_extents fs/ext4/extents.c:3876 [inline]
 ext4_ext_map_blocks+0x2147/0x7250 fs/ext4/extents.c:4168
 ext4_map_blocks+0xaa7/0x1e30 fs/ext4/inode.c:645
 ext4_iomap_alloc fs/ext4/inode.c:3403 [inline]
 ext4_iomap_begin+0x828/0xc70 fs/ext4/inode.c:3453
 iomap_iter+0x5a5/0xbd0 fs/iomap/iter.c:74
 __iomap_dio_rw+0xb3c/0x1ed0 fs/iomap/direct-io.c:585
 iomap_dio_rw+0x3e/0x90 fs/iomap/direct-io.c:672
 ext4_dio_write_iter fs/ext4/file.c:574 [inline]
 ext4_file_write_iter+0x1189/0x1dd0 fs/ext4/file.c:685
 call_write_iter include/linux/fs.h:2103 [inline]
 new_sync_write fs/read_write.c:507 [inline]
 vfs_write+0xc7e/0x1050 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: 0033:0x7fb5a6675169
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:00007fb59de07168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fb5a6795050 RCX: 00007fb5a6675169
RDX: 0000000000000012 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00007fb5a66d0ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc3ec9ffbf R14: 00007fb59de07300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace d081c91b08ecbdb6 ]---
RIP: 0010:ext4_split_extent_at+0xc28/0x10f0 fs/ext4/extents.c:3204
Code: ff e8 5c 5d 92 ff 48 89 df 48 8d b4 24 00 01 00 00 e8 0c 06 00 00 e9 4f fa ff ff b0 01 84 c0 0f 84 2e f6 ff ff e8 38 5d 92 ff <0f> 0b 89 d9 80 e1 07 fe c1 38 c1 0f 8c da f4 ff ff 48 89 df e8 2f
RSP: 0018:ffffc9000282ee40 EFLAGS: 00010293
RAX: ffffffff81db9288 RBX: 0000000000000000 RCX: ffff88811f633000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000282efb8 R08: ffffffff81db889a R09: ffffc9000282ef40
R10: fffff52000505de9 R11: dffffc0000000001 R12: 1ffff92000505de0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fb59de07700(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002003f000 CR3: 000000011c084000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400