diff mbox series

[bpf-next,1/3] libbpf: Fix func leak in attach_kprobe

Message ID 20210721215810.889975-2-jolsa@kernel.org
State New
Headers show
Series libbpf: Export bpf_program__attach_kprobe_opts function | expand

Commit Message

Jiri Olsa July 21, 2021, 9:58 p.m. UTC
Adding missing free for func pointer in attach_kprobe function.

Reported-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/lib/bpf/libbpf.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Jiri Olsa July 22, 2021, 7:15 a.m. UTC | #1
On Wed, Jul 21, 2021 at 11:58:08PM +0200, Jiri Olsa wrote:
> Adding missing free for func pointer in attach_kprobe function.

> 


and of course..

Fixes: a2488b5f483f ("libbpf: Allow specification of "kprobe/function+offset"")

jirka

> Reported-by: Andrii Nakryiko <andrii@kernel.org>

> Signed-off-by: Jiri Olsa <jolsa@kernel.org>

> ---

>  tools/lib/bpf/libbpf.c | 1 +

>  1 file changed, 1 insertion(+)

> 

> diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c

> index 4c153c379989..d46c2dd37be2 100644

> --- a/tools/lib/bpf/libbpf.c

> +++ b/tools/lib/bpf/libbpf.c

> @@ -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);

> -- 

> 2.31.1

>
diff mbox series

Patch

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 4c153c379989..d46c2dd37be2 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -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);