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From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ian Rogers <irogers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Namhyung Kim <namhyung@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@kernel.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Kan Liang <kan.liang@linux.intel.com>,
	Thomas Richter <tmricht@linux.ibm.com>,
	Kajol Jain <kjain@linux.ibm.com>,
	Athira Rajeev <atrajeev@linux.vnet.ibm.com>,
	linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1 1/2] perf disasm: Fix memory leak for locked operations
Date: Tue, 13 Aug 2024 11:53:01 -0300	[thread overview]
Message-ID: <ZrtzTTHim_vGX1ma@x1> (raw)
In-Reply-To: <20240813040613.882075-1-irogers@google.com>

On Mon, Aug 12, 2024 at 09:06:12PM -0700, Ian Rogers wrote:
> lock__parse calls disasm_line__parse passing
> &ops->locked.ins.name. Ensure ops->locked.ins.name is freed in
> lock__delete.
> 
> Found with lock/leak sanitizer.

Applied both patches to perf-tools-next.

Thanks,

- Arnaldo
 
> Signed-off-by: Ian Rogers <irogers@google.com>
> ---
>  tools/perf/util/disasm.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/tools/perf/util/disasm.c b/tools/perf/util/disasm.c
> index 22289003e16d..226d2181f694 100644
> --- a/tools/perf/util/disasm.c
> +++ b/tools/perf/util/disasm.c
> @@ -566,6 +566,7 @@ static void lock__delete(struct ins_operands *ops)
>  		ins_ops__delete(ops->locked.ops);
>  
>  	zfree(&ops->locked.ops);
> +	zfree(&ops->locked.ins.name);
>  	zfree(&ops->target.raw);
>  	zfree(&ops->target.name);
>  }
> -- 
> 2.46.0.76.ge559c4bf1a-goog

  parent reply	other threads:[~2024-08-13 14:53 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-08-13  4:06 [PATCH v1 1/2] perf disasm: Fix memory leak for locked operations Ian Rogers
2024-08-13  4:06 ` [PATCH v1 2/2] perf test annotate: Dump trapping test in trap handler Ian Rogers
2024-08-13 14:53 ` Arnaldo Carvalho de Melo [this message]
2024-08-13 16:04   ` [PATCH v1 1/2] perf disasm: Fix memory leak for locked operations Ian Rogers
2024-08-13 18:10     ` Arnaldo Carvalho de Melo
2024-08-13 19:11       ` Ian Rogers
2024-08-13 20:41         ` Arnaldo Carvalho de Melo
2024-08-13 22:25         ` Namhyung Kim
2024-08-14  0:43           ` Ian Rogers

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