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>,
"John Garry" <john.g.garry@oracle.com>,
"Will Deacon" <will@kernel.org>,
"James Clark" <james.clark@linaro.org>,
"Mike Leach" <mike.leach@linaro.org>,
"Leo Yan" <leo.yan@linux.dev>,
"Ravi Bangoria" <ravi.bangoria@amd.com>,
"Weilin Wang" <weilin.wang@intel.com>,
"Jing Zhang" <renyu.zj@linux.alibaba.com>,
"Xu Yang" <xu.yang_2@nxp.com>,
"Sandipan Das" <sandipan.das@amd.com>,
"Benjamin Gray" <bgray@linux.ibm.com>,
"Athira Jajeev" <atrajeev@linux.vnet.ibm.com>,
"Howard Chu" <howardchu95@gmail.com>,
"Dominique Martinet" <asmadeus@codewreck.org>,
"Yang Jihong" <yangjihong@bytedance.com>,
"Colin Ian King" <colin.i.king@gmail.com>,
"Veronika Molnarova" <vmolnaro@redhat.com>,
"Dr. David Alan Gilbert" <linux@treblig.org>,
"Oliver Upton" <oliver.upton@linux.dev>,
"Changbin Du" <changbin.du@huawei.com>,
"Ze Gao" <zegao2021@gmail.com>, "Andi Kleen" <ak@linux.intel.com>,
"Clément Le Goffic" <clement.legoffic@foss.st.com>,
"Sun Haiyong" <sunhaiyong@loongson.cn>,
"Junhao He" <hejunhao3@huawei.com>,
"Tiezhu Yang" <yangtiezhu@loongson.cn>,
"Yicong Yang" <yangyicong@hisilicon.com>,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v1 01/15] perf list: Avoid potential out of bounds memory read
Date: Wed, 11 Sep 2024 11:26:47 -0300 [thread overview]
Message-ID: <ZuGop61JahKH-UFi@x1> (raw)
In-Reply-To: <20240907050830.6752-2-irogers@google.com>
On Fri, Sep 06, 2024 at 10:08:16PM -0700, Ian Rogers wrote:
> If a desc string is 0 length then -1 will be out of bounds, add a
> check.
Cherry picked this one.
- Arnaldo
> Signed-off-by: Ian Rogers <irogers@google.com>
> ---
> tools/perf/builtin-list.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c
> index 82cb4b1010aa..65b8cba324be 100644
> --- a/tools/perf/builtin-list.c
> +++ b/tools/perf/builtin-list.c
> @@ -173,7 +173,7 @@ static void default_print_event(void *ps, const char *pmu_name, const char *topi
> if (pmu_name && strcmp(pmu_name, "default_core")) {
> desc_len = strlen(desc);
> desc_len = asprintf(&desc_with_unit,
> - desc[desc_len - 1] != '.'
> + desc_len > 0 && desc[desc_len - 1] != '.'
> ? "%s. Unit: %s" : "%s Unit: %s",
> desc, pmu_name);
> }
> --
> 2.46.0.469.g59c65b2a67-goog
next prev parent reply other threads:[~2024-09-11 14:26 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-07 5:08 [PATCH v1 00/15] Tool and hwmon PMUs Ian Rogers
2024-09-07 5:08 ` [PATCH v1 01/15] perf list: Avoid potential out of bounds memory read Ian Rogers
2024-09-11 14:26 ` Arnaldo Carvalho de Melo [this message]
2024-09-07 5:08 ` [PATCH v1 02/15] perf pmus: Fake PMU clean up Ian Rogers
2024-09-11 14:28 ` Arnaldo Carvalho de Melo
2024-09-07 5:08 ` [PATCH v1 03/15] perf evsel: Add accessor for tool_event Ian Rogers
2024-09-11 14:28 ` Arnaldo Carvalho de Melo
2024-09-07 5:08 ` [PATCH v1 04/15] perf pmu: To info add event_type_desc Ian Rogers
2024-09-07 5:08 ` [PATCH v1 05/15] perf pmu: Allow hardcoded terms to be applied to attributes Ian Rogers
2024-09-11 14:31 ` Arnaldo Carvalho de Melo
2024-09-07 5:08 ` [PATCH v1 06/15] perf parse-events: Expose/rename config_term_name Ian Rogers
2024-09-07 5:08 ` [PATCH v1 07/15] perf tool_pmu: Factor tool events into their own PMU Ian Rogers
2024-09-07 5:08 ` [PATCH v1 08/15] perf tool_pmu: Rename enum perf_tool_event to tool_pmu_event Ian Rogers
2024-09-07 5:08 ` [PATCH v1 09/15] perf tool_pmu: Rename perf_tool_event__* to tool_pmu__* Ian Rogers
2024-09-07 5:08 ` [PATCH v1 10/15] perf tool_pmu: Move expr literals to tool_pmu Ian Rogers
2024-09-07 5:08 ` [PATCH v1 11/15] perf jevents: Add tool event json under a common architecture Ian Rogers
2024-09-07 5:08 ` [PATCH v1 12/15] perf tool_pmu: Switch to standard pmu functions and json descriptions Ian Rogers
2024-09-10 5:47 ` Namhyung Kim
2024-09-07 5:08 ` [PATCH v1 13/15] perf tests: Add tool PMU test Ian Rogers
2024-09-10 5:50 ` Namhyung Kim
2024-09-10 15:59 ` Ian Rogers
2024-09-07 5:08 ` [PATCH v1 14/15] perf hwmon_pmu: Add a tool PMU exposing events from hwmon in sysfs Ian Rogers
2024-09-10 6:56 ` Namhyung Kim
2024-09-10 17:32 ` Ian Rogers
2024-09-07 5:08 ` [PATCH v1 15/15] perf docs: Document tool and hwmon events Ian Rogers
2024-09-10 2:21 ` [PATCH v1 00/15] Tool and hwmon PMUs Ian Rogers
2024-09-10 3:36 ` Guenter Roeck
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