From: Michalis Niarchos via B4 Relay <devnull+michael.niarchos.gmail.com@kernel.org>
To: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Ian Rogers <irogers@google.com>,
Adrian Hunter <adrian.hunter@intel.com>,
James Clark <james.clark@linaro.org>
Cc: linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
Michalis Niarchos <michael.niarchos@gmail.com>
Subject: [PATCH 2/4] perf tools: Fix memory leak in kvm_events_report()
Date: Mon, 03 Aug 2026 12:33:21 +0200 [thread overview]
Message-ID: <20260803-perf-kvm-fixes-v1-2-a5db849ac973@gmail.com> (raw)
In-Reply-To: <20260803-perf-kvm-fixes-v1-0-a5db849ac973@gmail.com>
From: Michalis Niarchos <michael.niarchos@gmail.com>
parse_options() calls parse_options_subcommand(), which allocates the
usage string. Free it.
Signed-off-by: Michalis Niarchos <michael.niarchos@gmail.com>
---
tools/perf/builtin-kvm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index 44c6998f2ee5..1a013698cae3 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -1755,6 +1755,9 @@ kvm_events_report(struct perf_kvm_stat *kvm, int argc, const char **argv)
if (argc)
usage_with_options(kvm_events_report_usage,
kvm_events_report_options);
+
+ /* free usage string allocated by parse_options */
+ free((void *)kvm_events_report_usage[0]);
}
#ifndef HAVE_SLANG_SUPPORT
--
2.55.0
next prev parent reply other threads:[~2026-08-03 10:33 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-03 10:33 [PATCH 0/4] perf tools: Fix memory issues Michalis Niarchos via B4 Relay
2026-08-03 10:33 ` [PATCH 1/4] perf tools: Fix memory leak in cmd_kvm() Michalis Niarchos via B4 Relay
2026-08-03 10:42 ` sashiko-bot
2026-08-03 10:33 ` Michalis Niarchos via B4 Relay [this message]
2026-08-03 10:43 ` [PATCH 2/4] perf tools: Fix memory leak in kvm_events_report() sashiko-bot
2026-08-03 10:33 ` [PATCH 3/4] perf tools: Fix double free and memory leak in kvm_events_record() Michalis Niarchos via B4 Relay
2026-08-03 10:43 ` sashiko-bot
2026-08-03 10:33 ` [PATCH 4/4] perf tools: Fix memory leak in cmd_kvm() Michalis Niarchos via B4 Relay
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