[PATCH bpf-next 6/6] selftests/bpf: fix memory leak in extract_build_id()

[Andrii Nakryiko <andriin@xxxxxx>]

getline() allocates string, which has to be freed.

Cc: Song Liu <songliubraving@xxxxxx>
Fixes: 81f77fd0deeb ("bpf: add selftest for stackmap with BPF_F_STACK_BUILD_ID")
Signed-off-by: Andrii Nakryiko <andriin@xxxxxx>
---
 tools/testing/selftests/bpf/test_progs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c
index 86d0020c9eec..93970ec1c9e9 100644
--- a/tools/testing/selftests/bpf/test_progs.c
+++ b/tools/testing/selftests/bpf/test_progs.c
@@ -351,6 +351,7 @@ int extract_build_id(char *build_id, size_t size)
 		len = size;
 	memcpy(build_id, line, len);
 	build_id[len] = '\0';
+	free(line);
 	return 0;
 err:
 	fclose(fp);
-- 
2.24.1