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libbpf: Fix func leak in attach_kprobe

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Add missing free() for func pointer in attach_kprobe function.

Fixes: a2488b5f48 ("libbpf: Allow specification of "kprobe/function+offset"")
Reported-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Alan Maguire <alan.maguire@oracle.com>
Tested-by: Alan Maguire <alan.maguire@oracle.com>
Link: https://lore.kernel.org/bpf/20210721215810.889975-2-jolsa@kernel.org
This commit is contained in:
Jiri Olsa
2021-07-21 23:58:08 +02:00
committed by Andrii Nakryiko
parent 9907442fcd
commit 1f71a468a7
1 changed files with 1 additions and 0 deletions
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tools/lib/bpf/libbpf.c
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@@ -10431,6 +10431,7 @@ static struct bpf_link *attach_kprobe(const struct bpf_sec_def *sec,
return libbpf_err_ptr(err);
}
if (opts.retprobe && offset != 0) {
free(func);
err = -EINVAL;
pr_warn("kretprobes do not support offset specification\n");
return libbpf_err_ptr(err);