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kernel BUG at fs/ext4/inode.c:2747!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5959 Comm: kworker/u8:8 Not tainted 6.16.0-rc1-syzkaller-00239-g08215f5486ec #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: writeback wb_workfn (flush-7:3)
RIP: 0010:ext4_do_writepages+0x2638/0x3490 fs/ext4/inode.c:2747
Code: a5 18 ff ff ff 48 c1 ea 03 80 3c 02 00 0f 84 33 ed ff ff 48 8b bd 20 ff ff ff e8 53 2e a9 ff e9 22 ed ff ff e8 e9 4b 43 ff 90 <0f> 0b e8 e1 4b 43 ff 90 0f 0b 90 e9 04 eb ff ff e8 d3 4b 43 ff 90
RSP: 0018:ffffc90004bff2c0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff8880592e89e0 RCX: ffffffff8278b9bd
RDX: ffff888028403c00 RSI: ffffffff8278cf57 RDI: 0000000000000007
RBP: ffffc90004bff490 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
R13: ffff8880592e8e48 R14: 0000000000000080 R15: ffffc90004bff4e8
FS:  0000000000000000(0000) GS:ffff88812475a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000565009c82008 CR3: 0000000040001000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 ext4_writepages+0x37a/0x7d0 fs/ext4/inode.c:2953
 do_writepages+0x27a/0x600 mm/page-writeback.c:2636
 __writeback_single_inode+0x160/0xfb0 fs/fs-writeback.c:1680
 writeback_sb_inodes+0x601/0xf90 fs/fs-writeback.c:1976
 wb_writeback+0x419/0xb70 fs/fs-writeback.c:2156
 wb_do_writeback fs/fs-writeback.c:2303 [inline]
 wb_workfn+0x14d/0xbe0 fs/fs-writeback.c:2343
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3321 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3402
 kthread+0x3c5/0x780 kernel/kthread.c:464
 ret_from_fork+0x5d7/0x6f0 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_do_writepages+0x2638/0x3490 fs/ext4/inode.c:2747
Code: a5 18 ff ff ff 48 c1 ea 03 80 3c 02 00 0f 84 33 ed ff ff 48 8b bd 20 ff ff ff e8 53 2e a9 ff e9 22 ed ff ff e8 e9 4b 43 ff 90 <0f> 0b e8 e1 4b 43 ff 90 0f 0b 90 e9 04 eb ff ff e8 d3 4b 43 ff 90
RSP: 0018:ffffc90004bff2c0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff8880592e89e0 RCX: ffffffff8278b9bd
RDX: ffff888028403c00 RSI: ffffffff8278cf57 RDI: 0000000000000007
RBP: ffffc90004bff490 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
R13: ffff8880592e8e48 R14: 0000000000000080 R15: ffffc90004bff4e8
FS:  0000000000000000(0000) GS:ffff88812475a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc5b077c4d0 CR3: 000000005c50b000 CR4: 0000000000350ef0