This is a note to let you know that I've just added the patch titled perf test bpf: Free obj_buf to the 5.4-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-test-bpf-free-obj_buf.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 937654ce497fb6e977a8c52baee5f7d9616302d9 Mon Sep 17 00:00:00 2001 From: Riccardo Mancini <rickyman7@xxxxxxxxx> Date: Thu, 15 Jul 2021 18:07:24 +0200 Subject: perf test bpf: Free obj_buf From: Riccardo Mancini <rickyman7@xxxxxxxxx> commit 937654ce497fb6e977a8c52baee5f7d9616302d9 upstream. ASan reports some memory leaks when running: # perf test "42: BPF filter" The first of these leaks is caused by obj_buf never being deallocated in __test__bpf. This patch adds the missing free. Signed-off-by: Riccardo Mancini <rickyman7@xxxxxxxxx> Fixes: ba1fae431e74bb42 ("perf test: Add 'perf test BPF'") Cc: Ian Rogers <irogers@xxxxxxxxxx> Cc: Jiri Olsa <jolsa@xxxxxxxxxx> Cc: Mark Rutland <mark.rutland@xxxxxxx> Cc: Namhyung Kim <namhyung@xxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Wang Nan <wangnan0@xxxxxxxxxx> Link: http://lore.kernel.org/lkml/60f3ca935fe6672e7e866276ce6264c9e26e4c87.1626343282.git.rickyman7@xxxxxxxxx [ Added missing stdlib.h include ] Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- tools/perf/tests/bpf.c | 2 ++ 1 file changed, 2 insertions(+) --- a/tools/perf/tests/bpf.c +++ b/tools/perf/tests/bpf.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include <errno.h> #include <stdio.h> +#include <stdlib.h> #include <sys/epoll.h> #include <sys/types.h> #include <sys/stat.h> @@ -282,6 +283,7 @@ static int __test__bpf(int idx) } out: + free(obj_buf); bpf__clear(); return ret; } Patches currently in stable-queue which might be from rickyman7@xxxxxxxxx are queue-5.4/perf-test-bpf-free-obj_buf.patch