linux-kernel - Re: [tip: perf/core] perf script: Fix memory leaks in list

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Message-ID: <20190827214545.GM5447@tassilo.jf.intel.com>
Date:   Tue, 27 Aug 2019 14:45:45 -0700
From:   Andi Kleen <ak@...ux.intel.com>
To:     "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Cc:     linux-kernel@...r.kernel.org, linux-tip-commits@...r.kernel.org,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Ingo Molnar <mingo@...nel.org>, Borislav Petkov <bp@...en8.de>
Subject: Re: [tip: perf/core] perf script: Fix memory leaks in list_scripts()

> > Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
> 
> This should be tagged for stable:
> 
> Cc: stable@...r.kernel.org

It's a theoretical problem (which are explicitely ruled out by stable rules)
because if you ever see user space malloc() returning NULL the system is likely
already randomly killing your processes in OOM, including eventually perf.

I can see the value of shutting up coverity though, but that's not something
that needs to be in stable.

-Andi