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>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
Adrian Hunter <adrian.hunter@intel.com>,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
bpf@vger.kernel.org
Subject: Re: [PATCH] perf bperf: Avoid use after free via union
Date: Tue, 11 Apr 2023 09:36:11 -0300 [thread overview]
Message-ID: <ZDVUO/bg8WwnL8V+@kernel.org> (raw)
In-Reply-To: <20230411051718.267228-1-irogers@google.com>
Em Mon, Apr 10, 2023 at 10:17:18PM -0700, Ian Rogers escreveu:
> If bperf sets leader_skel or follower_skel then it appears bpf_skel is
> set and can trigger the following use-after-free:
<SNIP>
> Resolve by clearing bpf_skel as part of bpf_counter__destroy.
> Suggested-by: Namhyung Kim <namhyung@kernel.org>
Thanks, applied.
- Arnaldo
prev parent reply other threads:[~2023-04-11 12:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-11 5:17 [PATCH] perf bperf: Avoid use after free via union Ian Rogers
2023-04-11 12:36 ` Arnaldo Carvalho de Melo [this message]
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