linux-kernel - Re: [PATCH v3 tip:perf/core] perf/amd/ibs: Prevent leaking sensitive data to userspace

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Message-ID: <Z96qQm6qqRRcSL9j@gmail.com>
Date: Sat, 22 Mar 2025 13:17:06 +0100
From: Ingo Molnar <mingo@...nel.org>
To: Ravi Bangoria <ravi.bangoria@....com>
Cc: peterz@...radead.org, namhyung@...nel.org, mingo@...hat.com,
	acme@...nel.org, kan.liang@...ux.intel.com, mark.rutland@....com,
	alexander.shishkin@...ux.intel.com, linux-kernel@...r.kernel.org,
	matteorizzo@...gle.com, linux-perf-users@...r.kernel.org,
	santosh.shukla@....com, ananth.narayan@....com,
	sandipan.das@....com
Subject: Re: [PATCH v3 tip:perf/core] perf/amd/ibs: Prevent leaking sensitive
 data to userspace


* Ravi Bangoria <ravi.bangoria@....com> wrote:

> > How well was this tested? v6.14 will be released tomorrow most 
> > likely, so it's a bit risky to apply such a large patch so late. 
> > Applying the -v1 fix was a bit risky already.
> 
> I understand. Although I've done a fair bit of testing and ran perf- 
> fuzzer for few hours before posting,

That's reassuring!

> I'm also not in favor of rushing. I think it's safe to defer it to 
> 6.15.

I'm leaning towards sending the fix to Linus later today, because the 
leak has been introduced in this merge window AFAICS, via d29e744c7167, 
and I'd prefer us not releasing a buggy kernel ...

Thanks,

	Ingo