linux-kernel - [PATCH v2 5/5] libperf event: Ensure tracing data is multiple of 8 sized

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250821163820.1132977-6-irogers@google.com>
Date: Thu, 21 Aug 2025 09:38:19 -0700
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>, 
	Mark Rutland <mark.rutland@....com>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, 
	Kan Liang <kan.liang@...ux.intel.com>, Chun-Tse Shao <ctshao@...gle.com>, 
	Blake Jones <blakejones@...gle.com>, James Clark <james.clark@...aro.org>, 
	Jan Polensky <japo@...ux.ibm.com>, Collin Funk <collin.funk1@...il.com>, 
	Howard Chu <howardchu95@...il.com>, Thomas Gleixner <tglx@...utronix.de>, 
	Nam Cao <namcao@...utronix.de>, Li Huafei <lihuafei1@...wei.com>, 
	"Steinar H. Gunderson" <sesse@...gle.com>, Athira Rajeev <atrajeev@...ux.ibm.com>, 
	linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 5/5] libperf event: Ensure tracing data is multiple of 8 sized

Perf's synthetic-events.c will ensure 8-byte alignment of tracing
data, writing it after a perf_record_header_tracing_data event. Add
padding to struct perf_record_header_tracing_data to make it 16-byte
rather than 12-byte sized.

Fixes: 055c67ed3988 ("perf tools: Move event synthesizing routines to separate .c file")
Signed-off-by: Ian Rogers <irogers@...gle.com>
Acked-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/lib/perf/include/perf/event.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/lib/perf/include/perf/event.h b/tools/lib/perf/include/perf/event.h
index 6608f1e3701b..aa1e91c97a22 100644
--- a/tools/lib/perf/include/perf/event.h
+++ b/tools/lib/perf/include/perf/event.h
@@ -291,6 +291,7 @@ struct perf_record_header_event_type {
 struct perf_record_header_tracing_data {
 	struct perf_event_header header;
 	__u32			 size;
+	__u32			 pad;
 };
 
 #define PERF_RECORD_MISC_BUILD_ID_SIZE (1 << 15)
-- 
2.51.0.rc1.193.gad69d77794-goog