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selftests/bpf: Free strdup memory in veristat

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The strdup() function returns a pointer to a new string which is a
duplicate of the string "input". Memory for the new string is obtained
with malloc(), and need to be freed with free().

This patch adds these missing "free(input)" in parse_stats() to avoid
memory leak in veristat.c.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/ded44f8865cd7f337f52fc5fb0a5fbed7d6bd641.1714374022.git.tanggeliang@kylinos.cn
This commit is contained in:
Geliang Tang 2024-04-29 15:07:34 +08:00 • committed by Andrii Nakryiko
parent 237c522c1d
commit 25927d0a1b
1 changed files with 4 additions and 1 deletions
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5
tools/testing/selftests/bpf/veristat.c
View file

@ -792,10 +792,13 @@ static int parse_stats(const char *stats_str, struct stat_specs *specs)
while ((next = strtok_r(state ? NULL : input, ",", &state))) {
err = parse_stat(next, specs);
if (err)
if (err) {
free(input);
return err;
}
}
free(input);
return 0;
}