linux-kernel - [PATCH v5 0/2] perf/core: Bail out early if the request AUX area is out of bound

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Message-Id: <20230907004308.25874-1-xueshuai@linux.alibaba.com>
Date:   Thu,  7 Sep 2023 08:43:06 +0800
From:   Shuai Xue <xueshuai@...ux.alibaba.com>
To:     alexander.shishkin@...ux.intel.com, peterz@...radead.org,
        james.clark@....com, leo.yan@...aro.org
Cc:     mingo@...hat.com, baolin.wang@...ux.alibaba.com, acme@...nel.org,
        mark.rutland@....com, jolsa@...nel.org, namhyung@...nel.org,
        irogers@...gle.com, adrian.hunter@...el.com,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        nathan@...nel.org, bpf@...r.kernel.org
Subject: [PATCH v5 0/2] perf/core: Bail out early if the request AUX area is out of bound

changes since v4 (per Leo):
- refine comments as Leo asked
- correct aux limitation in doc by adding a formula

changes since v3 (per James):
- change to return with existing value -ENOMEM
- split doc part to a separate patch since they are going to be merged through
  separate trees.

changes since v2:
- remove unnecessary overflow check (per Peter)

changes since v1:
- drop out patch2 because it has been fixed on upstream (Thanks James for reminding)
- move sanity check into rb_alloc_aux (per Leo)
- add overflow check (per James)

Shuai Xue (2):
  perf/core: Bail out early if the request AUX area is out of bound
  perf record: Update docs regarding the maximum limitation of AUX area

 kernel/events/ring_buffer.c              |  6 ++++++
 tools/perf/Documentation/perf-record.txt | 11 +++++++++++
 2 files changed, 17 insertions(+)

-- 
2.39.3