linux-kernel - [PATCH v1 0/8] Various fixes around undefined behavior

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Message-Id: <20241213210425.526512-1-irogers@google.com>
Date: Fri, 13 Dec 2024 13:04:17 -0800
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>, "Mike Rapoport (IBM)" <rppt@...nel.org>, 
	Wei Yang <richard.weiyang@...il.com>, James Clark <james.clark@...aro.org>, 
	Howard Chu <howardchu95@...il.com>, Kajol Jain <kjain@...ux.ibm.com>, 
	Athira Rajeev <atrajeev@...ux.vnet.ibm.com>, Ze Gao <zegao2021@...il.com>, 
	Weilin Wang <weilin.wang@...el.com>, linux-kernel@...r.kernel.org, 
	linux-perf-users@...r.kernel.org
Subject: [PATCH v1 0/8] Various fixes around undefined behavior

Fix various undefined behavior issues, improve tests to make them
easier to diagnose and add assertions so that problems don't recur.

Ian Rogers (8):
  perf disasm: Avoid undefined behavior in incrementing NULL
  perf test trace_btf_enum: Skip if permissions are insufficient
  tools headers: Update offsetof and container_of
  perf evsel: Avoid container_of on a NULL leader
  tools headers: Add non-NULL assert to container_of
  perf maps: Avoid UB passing NULL to bsearch
  perf test shell lock_contention: Extra debug diagnostics
  libperf event: Ensure tracing data is multiple of 8 sized

 tools/include/linux/kernel.h              | 16 ++++++++++------
 tools/lib/perf/include/perf/event.h       |  1 +
 tools/perf/tests/shell/lock_contention.sh |  9 +++++++--
 tools/perf/tests/shell/trace_btf_enum.sh  | 11 +++++++++++
 tools/perf/util/disasm.c                  |  7 +++++--
 tools/perf/util/evsel.c                   |  2 ++
 tools/perf/util/maps.c                    |  9 ++++++---
 7 files changed, 42 insertions(+), 13 deletions(-)

-- 
2.47.1.613.gc27f4b7a9f-goog