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kernel BUG at fs/ext4/inode.c:2748!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 13 Comm: kworker/u8:1 Not tainted 6.16.0-rc5-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: writeback wb_workfn (flush-7:2)
RIP: 0010:ext4_do_writepages+0x3f15/0x3f20 fs/ext4/inode.c:2747
Code: c1 03 38 c1 0f 8c 2b fd ff ff 4c 89 e7 e8 63 d8 b0 ff e9 1e fd ff ff e8 79 46 4d ff 0f 0b e8 72 46 4d ff 0f 0b e8 6b 46 4d ff <0f> 0b 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90000126cc0 EFLAGS: 00010293
RAX: ffffffff8271e0a5 RBX: 0000004210000000 RCX: ffff88801c6d0000
RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000
RBP: ffffc900001270d0 R08: ffff88805665ccd7 R09: 1ffff1100accb99a
R10: dffffc0000000000 R11: ffffed100accb99b R12: 0000000000000001
R13: 0000000004208060 R14: 0000004000000000 R15: ffffc90000127120
FS:  0000000000000000(0000) GS:ffff88812671e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff780f40000 CR3: 0000000074b26000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ext4_writepages+0x205/0x350 fs/ext4/inode.c:2953
 do_writepages+0x32e/0x550 mm/page-writeback.c:2636
 __writeback_single_inode+0x145/0xfd0 fs/fs-writeback.c:1680
 writeback_sb_inodes+0x6b5/0xff0 fs/fs-writeback.c:1976
 wb_writeback+0x43b/0xae0 fs/fs-writeback.c:2156
 wb_do_writeback fs/fs-writeback.c:2303 [inline]
 wb_workfn+0x409/0xee0 fs/fs-writeback.c:2343
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xae1/0x1790 kernel/workqueue.c:3321
 worker_thread+0xa57/0xfc0 kernel/workqueue.c:3402
 kthread+0x711/0x890 kernel/kthread.c:464
 ret_from_fork+0x3f5/0x760 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+0x3f15/0x3f20 fs/ext4/inode.c:2747
Code: c1 03 38 c1 0f 8c 2b fd ff ff 4c 89 e7 e8 63 d8 b0 ff e9 1e fd ff ff e8 79 46 4d ff 0f 0b e8 72 46 4d ff 0f 0b e8 6b 46 4d ff <0f> 0b 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90000126cc0 EFLAGS: 00010293
RAX: ffffffff8271e0a5 RBX: 0000004210000000 RCX: ffff88801c6d0000
RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000
RBP: ffffc900001270d0 R08: ffff88805665ccd7 R09: 1ffff1100accb99a
R10: dffffc0000000000 R11: ffffed100accb99b R12: 0000000000000001
R13: 0000000004208060 R14: 0000004000000000 R15: ffffc90000127120
FS:  0000000000000000(0000) GS:ffff88812661e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055557f0965c8 CR3: 000000000d936000 CR4: 00000000003526f0