Re: [PATCH] erofs: complete fscache pseudo-bio once when a read is split

[Gao Xiang <hsiangkao@linux.alibaba.com>]

On 2026/6/20 00:21, Michael Bommarito wrote:
> On Fri, Jun 19, 2026 at 10:20 AM Gao Xiang <hsiangkao@linux.alibaba.com> wrote:
>> fscache is already deprecated, I will remove this path
>> in this or the next cycle: it's not worth to improve
>> this, and bio_inc_remaining is suspicious since I never
>> tend to introduce chain pseudo-bios.
> 
> I didn't chase a POC for this one, but I can't rule out an LPE on the
> or at least helpful shaping from this.
> 
> I know it's not relevant going forward, but the UAF / double free will
> live forever unless stable@ gets something.

It's already _deprecate_ for almost two years: and
I believe there should be more serious issues all
over the kernel, why just focus on a deprecated
feature?

Or please provide an accurate reproducible way first
so that I can play with that myself, I think I can
fix it in a cleaner way. If it's really necessary,
it will be fixed to the stable kernels only later,
but this feature will be removed in the near future
upstream instead.

Thanks,
Gao Xiang

> 
> Thanks,
> Mike