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kernel BUG at fs/ext4/inode.c:2826!
Internal error: Oops - BUG: 00000000f2000800 [#1]  SMP
Modules linked in:
CPU: 0 UID: 0 PID: 7426 Comm: kworker/u8:11 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026
Workqueue: writeback wb_workfn (flush-7:8)
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : ext4_do_writepages+0x3bbc/0x3bc0 fs/ext4/inode.c:2825
lr : ext4_do_writepages+0x3bbc/0x3bc0 fs/ext4/inode.c:2825
sp : ffff8000929d6d80
x29: ffff8000929d7140 x28: 0000000000000001 x27: dfff800000000000
x26: ffff70001253ade8 x25: 1ffff0001253aeb0 x24: 1fffe0001e427135
x23: ffff70001253ae34 x22: ffff0000f21389a8 x21: ffff0000c5182000
x20: 0000004210000000 x19: ffff0000c5186000 x18: 1fffe00035beb820
x17: 0000000000000003 x16: ffff800088a0b000 x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000008 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000000003 x9 : 0000000000000000
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000080
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff800080fe129c
x2 : 0000004000000000 x1 : ffff0000d4660000 x0 : 0000000000000000
Call trace:
 ext4_do_writepages+0x3bbc/0x3bc0 fs/ext4/inode.c:2825 (P)
 ext4_writepages+0x198/0x2dc fs/ext4/inode.c:3042
 do_writepages+0x284/0x47c mm/page-writeback.c:2571
 __writeback_single_inode+0x140/0x1880 fs/fs-writeback.c:1764
 writeback_sb_inodes+0x798/0x1720 fs/fs-writeback.c:2056
 wb_writeback+0x3bc/0x10cc fs/fs-writeback.c:2241
 wb_do_writeback fs/fs-writeback.c:2388 [inline]
 wb_workfn+0x31c/0xc84 fs/fs-writeback.c:2428
 process_one_work kernel/workqueue.c:3314 [inline]
 process_scheduled_works+0x788/0x10b8 kernel/workqueue.c:3397
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3478
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842
Code: aa1303e0 97c3195a d4210000 97d985cf (d4210000) 
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