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kernel BUG at fs/ext4/inode.c:2827!
Internal error: Oops - BUG: 00000000f2000800 [#1]  SMP
Modules linked in:
CPU: 0 UID: 0 PID: 12 Comm: kworker/u8:0 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026
Workqueue: writeback wb_workfn (flush-7:0)
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : ext4_do_writepages+0x3bbc/0x3bc0 fs/ext4/inode.c:2826
lr : ext4_do_writepages+0x3bbc/0x3bc0 fs/ext4/inode.c:2826
sp : ffff80008ec16d20
x29: ffff80008ec170e0 x28: 0000000000000001 x27: dfff800000000000
x26: ffff700011d82ddc x25: 1ffff00011d82ea4 x24: 1fffe0001e1975e6
x23: ffff700011d82e28 x22: ffff0000f0cbaf30 x21: ffff0000d3eae000
x20: 0000006210000000 x19: ffff0000d3d50000 x18: 00000000ffffffff
x17: ffff80008a74f000 x16: 0000000000000003 x15: ffff80008a2d8da0
x14: ffff80008a54ee28 x13: 0000000000000008 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000000003 x9 : 0000000000000000
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000080
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff800081017928
x2 : 0000004000000000 x1 : ffff0000c19e8000 x0 : 0000000000000000
Call trace:
 ext4_do_writepages+0x3bbc/0x3bc0 fs/ext4/inode.c:2826 (P)
 ext4_writepages+0x198/0x2dc fs/ext4/inode.c:3043
 do_writepages+0x284/0x47c mm/page-writeback.c:2571
 __writeback_single_inode+0x140/0x1880 fs/fs-writeback.c:1787
 writeback_sb_inodes+0x798/0x1720 fs/fs-writeback.c:2079
 wb_writeback+0x3bc/0x10cc fs/fs-writeback.c:2264
 wb_do_writeback fs/fs-writeback.c:2432 [inline]
 wb_workfn+0x318/0xda8 fs/fs-writeback.c:2477
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0x788/0x10b8 kernel/workqueue.c:3405
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3486
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842
Code: aa1303e0 97c24004 d4210000 97d8ea5c (d4210000) 
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