Re: [PATCH 0/8] cxl: Assorted fixes

[Guixin Liu <kanie@linux.alibaba.com>]

在 2026/8/12 03:57, Alison Schofield 写道:
> On Tue, Aug 11, 2026 at 07:36:00PM +0800, Guixin Liu wrote:
>> This is a batch of fixes found while auditing drivers/cxl. They are
>> independent of each other and can be applied individually or dropped in
>> any combination; they are only sent together because they came out of the
>> same pass over the code.
> Hi Guixin Liu.
>
> Thanks for taking a look at CXL and putting these fixes together. I
> appreciate that the intent here is to make the individual fixes easy to
> take or drop. From the maintainer side, though, a grab bag of independent
> findings from an audit has somewhat the opposite effect. It leaves us
> with the audit results and the homework. :)
>
> We have been working through this kind of cleanup in focused functional
> areas, like features, HDM enumeration, etc. Please take a similar approach
> rather than collecting unrelated findings into a single series. Address
> one area at a time.
Sorry, this is my first time sending patch to cxl mailing list,
I will pay attention to these next time, thanks.
>
> As part of that work, please check mailing list traffic and cxl/next for
> fixes that have already been posted or merged, and review the pre-existing
> complaints reported by the Sashiko bot against your patchset:
> https://sashiko.dev/#/patchset/20260811113608.2815625-1-kanie%40linux.alibaba.com
Sure, I will check before,

but why dosen't Sashiko reply directly in the current email? I can't 
reply Sashiko.
> Please also follow the conventions we use for fix commit messages. They
> should not narrate the code change, but rather describe what happens today,
> why that is wrong and its impact, then state how the patch fixes it.
> For an example of switching from code narration to behavior description,
> take a look at my recent reply to a commit message w similar issue:
> https://lore.kernel.org/linux-cxl/ant2Z1mzHCrzmzXn@aschofie-mobl2.lan/
Got that, thanks.

Best Regards,
Guixin Liu
> This up-front triage is becoming increasingly important as we see more
> AI-assisted audits and fix submissions. Without it, maintainers end up
> determining whether each finding is still present, already being
> addressed, significant enough to fix, and where it fits with ongoing
> work. That review burden does not scale with the volume of AI-generated
> findings.
>
> Rather than reworking this series as a whole, please apply this feedback
> to focused CXL fixes you submit going forward.
>
> Thanks,
> Alison
>
>> Guixin Liu (8):
>>    cxl/features: Validate the fwctl RPC input length
>>    cxl/features: Bound the Get Feature output by the user output buffer
>>    cxl/core: Fix dport use-after-free via the einj_inject debugfs file
>>    cxl/pci: Fix NULL pointer dereference in reset detection
>>    cxl/hdm: Fix out of bounds read of the decoder target list
>>    cxl/cdat: Fix uninitialized stack use in endpoint bandwidth gathering
>>    cxl/mce: Validate the memdev and endpoint before use
>>    cxl/region: Unregister the pmem region bridge on setup failure
>>
>>   drivers/cxl/core/cdat.c        |  6 +++---
>>   drivers/cxl/core/features.c    | 15 ++++++++++++++-
>>   drivers/cxl/core/hdm.c         | 12 ++++++++++++
>>   drivers/cxl/core/mce.c         |  8 ++++++--
>>   drivers/cxl/core/pci.c         |  8 ++++++++
>>   drivers/cxl/core/port.c        | 18 ++++++++++++++----
>>   drivers/cxl/core/region_pmem.c |  6 ++++--
>>   7 files changed, 61 insertions(+), 12 deletions(-)
>>
>>
>> base-commit: d58772d8520c7ef247c4b95c9bd76d3a25da9ff5
>> -- 
>> 2.43.7
>>