Merge pull request #4742 from chantra/fix_vla_bound

sanitizer: Fix UndefinedBehaviorSanitizer: non-positive-vla-index

1 files changed, 6 insertions, 5 deletions

diff --git a/src/cc/api/BPF.cc b/src/cc/api/BPF.cc
index ae0e7a68..9fda2d19 100644
--- a/src/cc/api/BPF.cc
+++ b/src/cc/api/BPF.cc
@@ -118,13 +118,14 @@ StatusTuple BPF::init(const std::string& bpf_program,
     }
   }
 
-  auto flags_len = cflags.size();
-  const char* flags[flags_len];
-  for (size_t i = 0; i < flags_len; i++)
-    flags[i] = cflags[i].c_str();
+  std::vector<const char*> flags;
+  for (const auto& c: cflags)
+    flags.push_back(c.c_str());
 
   all_bpf_program_ += bpf_program;
-  if (bpf_module_->load_string(all_bpf_program_, flags, flags_len) != 0) {
+  if (bpf_module_->load_string(all_bpf_program_,
+                               flags.data(),
+                               flags.size()) != 0) {
     init_fail_reset();
     return StatusTuple(-1, "Unable to initialize BPF program");
   }