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kernel BUG at fs/ext4/extents.c:2153!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 1106 Comm: kworker/u8:5 Not tainted 6.16.0-rc5-syzkaller-00224-g379f604cc3dc #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: ext4-rsv-conversion ext4_end_io_rsv_work
RIP: 0010:ext4_ext_insert_extent+0x4ab7/0x4af0 fs/ext4/extents.c:2153
Code: 89 d9 80 e1 07 fe c1 38 c1 0f 8c a6 e7 ff ff 48 89 df e8 fc 87 b6 ff e9 99 e7 ff ff e8 62 30 55 ff 90 0f 0b e8 5a 30 55 ff 90 <0f> 0b e8 52 30 55 ff 90 0f 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c
RSP: 0018:ffffc90003b0f1a0 EFLAGS: 00010293
RAX: ffffffff826b04f6 RBX: 000000000000003f RCX: ffff888026e00000
RDX: 0000000000000000 RSI: 000000000000003f RDI: 000000000000003f
RBP: ffffc90003b0f350 R08: ffff888057aa865f R09: 1ffff1100af550cb
R10: dffffc0000000000 R11: ffffed100af550cc R12: 000000000000003f
R13: dffffc0000000000 R14: ffff8880553e6454 R15: ffff88802898d600
FS:  0000000000000000(0000) GS:ffff888125c4f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc2cc341000 CR3: 0000000073c52000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ext4_ext_map_blocks+0x1792/0x6ac0 fs/ext4/extents.c:4404
 ext4_map_create_blocks fs/ext4/inode.c:609 [inline]
 ext4_map_blocks+0x931/0x18d0 fs/ext4/inode.c:813
 ext4_convert_unwritten_extents+0x2ae/0x5d0 fs/ext4/extents.c:4932
 ext4_convert_unwritten_io_end_vec+0xff/0x170 fs/ext4/extents.c:4972
 ext4_end_io_end+0xc7/0x410 fs/ext4/page-io.c:199
 ext4_do_flush_completed_IO fs/ext4/page-io.c:287 [inline]
 ext4_end_io_rsv_work+0x262/0x330 fs/ext4/page-io.c:302
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3321
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
 kthread+0x711/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_ext_insert_extent+0x4ab7/0x4af0 fs/ext4/extents.c:2153
Code: 89 d9 80 e1 07 fe c1 38 c1 0f 8c a6 e7 ff ff 48 89 df e8 fc 87 b6 ff e9 99 e7 ff ff e8 62 30 55 ff 90 0f 0b e8 5a 30 55 ff 90 <0f> 0b e8 52 30 55 ff 90 0f 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c
RSP: 0018:ffffc90003b0f1a0 EFLAGS: 00010293
RAX: ffffffff826b04f6 RBX: 000000000000003f RCX: ffff888026e00000
RDX: 0000000000000000 RSI: 000000000000003f RDI: 000000000000003f
RBP: ffffc90003b0f350 R08: ffff888057aa865f R09: 1ffff1100af550cb
R10: dffffc0000000000 R11: ffffed100af550cc R12: 000000000000003f
R13: dffffc0000000000 R14: ffff8880553e6454 R15: ffff88802898d600
FS:  0000000000000000(0000) GS:ffff888125d4f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f648da8e368 CR3: 0000000076f1e000 CR4: 00000000003526f0