Re: Stack corruption in bch2_nocow_write

From: Kent Overstreet
Date: Sat Dec 30 2023 - 17:41:14 EST


On Fri, Dec 29, 2023 at 07:43:13PM +0800, Daniel J Blueman wrote:
> Hi Kent et al,
>
> On Linux 6.7-rc7 from bcachefs master SHA f3608cbdfd built with UBSAN
> [1], with a crafted workload [2] I'm able to trigger stack corruption
> in bch2_nocow_write [3].
>
> Let me know if you can't reproduce it and I'll check reproducibility
> on another platform, and let me know for any patch testing.

Can you give the bcachefs-testing branch a try?