audit_init_filter_exe() does not free the buffer returned by realpath(3)
when the path is too long.
Signed-off-by: Günther Noack <redacted>
---
tools/testing/selftests/landlock/audit.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/landlock/audit.h b/tools/testing/selftests/landlock/audit.h
index d428ce802f49..1e533b4e26db 100644
--- a/tools/testing/selftests/landlock/audit.h
+++ b/tools/testing/selftests/landlock/audit.h
@@ -507,8 +507,10 @@ static int audit_init_filter_exe(struct audit_filter *filter, const char *path)
/* No need for the terminating NULL byte. */
filter->exe_len = strlen(absolute_path);
- if (filter->exe_len > sizeof(filter->exe))
+ if (filter->exe_len > sizeof(filter->exe)) {
+ free(absolute_path);
return -E2BIG;
+ }
memcpy(filter->exe, absolute_path, filter->exe_len);
free(absolute_path);
--
2.56.0