This is a note to let you know that I've just added the patch titled perf bench: Fix two memory leaks detected with ASan to the 4.19-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: perf-bench-fix-two-memory-leaks-detected-with-asan.patch and it can be found in the queue-4.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 74a09e87169ebb10c3fd0a8252c276a23d9e8c76 Author: Sohaib Mohamed <sohaib.amhmd@xxxxxxxxx> Date: Wed Nov 10 04:20:11 2021 +0200 perf bench: Fix two memory leaks detected with ASan [ Upstream commit 92723ea0f11d92496687db8c9725248e9d1e5e1d ] ASan reports memory leaks while running: $ perf bench sched all Fixes: e27454cc6352c422 ("perf bench: Add sched-messaging.c: Benchmark for scheduler and IPC mechanisms based on hackbench") Signed-off-by: Sohaib Mohamed <sohaib.amhmd@xxxxxxxxx> Acked-by: Ian Rogers <irogers@xxxxxxxxxx> Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx> Cc: Hitoshi Mitake <h.mitake@xxxxxxxxx> Cc: Jiri Olsa <jolsa@xxxxxxxxxx> Cc: Mark Rutland <mark.rutland@xxxxxxx> Cc: Namhyung Kim <namhyung@xxxxxxxxxx> Cc: Paul Russel <rusty@xxxxxxxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Pierre Gondois <pierre.gondois@xxxxxxx> Link: http://lore.kernel.org/lkml/20211110022012.16620-1-sohaib.amhmd@xxxxxxxxx Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/tools/perf/bench/sched-messaging.c b/tools/perf/bench/sched-messaging.c index f9d7641ae8338..b4e13db991e9e 100644 --- a/tools/perf/bench/sched-messaging.c +++ b/tools/perf/bench/sched-messaging.c @@ -226,6 +226,8 @@ static unsigned int group(pthread_t *pth, snd_ctx->out_fds[i] = fds[1]; if (!thread_mode) close(fds[0]); + + free(ctx); } /* Now we have all the fds, fork the senders */ @@ -242,6 +244,8 @@ static unsigned int group(pthread_t *pth, for (i = 0; i < num_fds; i++) close(snd_ctx->out_fds[i]); + free(snd_ctx); + /* Return number of children to reap */ return num_fds * 2; }