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kernel BUG at fs/ext4/inode.c:2420!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4279 Comm: kworker/u4:10 Not tainted 5.15.181-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
Workqueue: writeback wb_workfn (flush-7:1)
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : mpage_map_one_extent fs/ext4/inode.c:2420 [inline]
pc : mpage_map_and_submit_extent fs/ext4/inode.c:2461 [inline]
pc : ext4_writepages+0x2b2c/0x2c14 fs/ext4/inode.c:2829
lr : mpage_map_one_extent fs/ext4/inode.c:2420 [inline]
lr : mpage_map_and_submit_extent fs/ext4/inode.c:2461 [inline]
lr : ext4_writepages+0x2b2c/0x2c14 fs/ext4/inode.c:2829
sp : ffff80001f5e6ee0
x29: ffff80001f5e7200 x28: 0000000000000000 x27: ffff80001f5e75f0
x26: dfff800000000000 x25: ffff0000ea2ae000 x24: ffff0000de03d260
x23: ffff0000ea2ae050 x22: 0000000000000000 x21: 1fffe0001bc07a51
x20: 0000000000000000 x19: 0000000000000010 x18: 0000000000000000
x17: ffff800016ce0000 x16: ffff8000111a3970 x15: ffff8000089ab238
x14: ffff8000089aca14 x13: ffff80000820c0e4 x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : ffff800008cc678c
x8 : ffff0000d0628000 x7 : 0000000000000000 x6 : ffff8000089a9a78
x5 : ffff0000c8613df8 x4 : 0000000000000000 x3 : ffff8000082b6e58
x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 mpage_map_one_extent fs/ext4/inode.c:2420 [inline]
 mpage_map_and_submit_extent fs/ext4/inode.c:2461 [inline]
 ext4_writepages+0x2b2c/0x2c14 fs/ext4/inode.c:2829
 do_writepages+0x36c/0x578 mm/page-writeback.c:2386
 __writeback_single_inode+0x148/0x11f0 fs/fs-writeback.c:1647
 writeback_sb_inodes+0x7fc/0x1378 fs/fs-writeback.c:1930
 wb_writeback+0x3d8/0xe44 fs/fs-writeback.c:2104
 wb_do_writeback fs/fs-writeback.c:2247 [inline]
 wb_workfn+0x350/0xdd8 fs/fs-writeback.c:2288
 process_one_work+0x79c/0x1140 kernel/workqueue.c:2310
 worker_thread+0x8f4/0x101c kernel/workqueue.c:2457
 kthread+0x374/0x454 kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870
Code: f94063f6 f2fbfffa 17fffe23 97dec859 (d4210000) 
---[ end trace 9193d01d89130a8f ]---