workaround to pass the verifier

squash this! Signed-off-by: Mahe Tardy <mahe.tardy@gmail.com>
cilium · Dec 19, 2023 · 796a65d · 796a65d
1 parent 5576e66
commit 796a65d
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/bpf/process/bpf_process_event.h b/bpf/process/bpf_process_event.h
@@ -16,7 +16,11 @@
 #define MAX_BUF_LEN 256
 
 struct buffer_heap_map_value {
-	unsigned char buf[MAX_BUF_LEN];
+	// Buffer is twice the needed size because of the verifier. In prepend_name
+	// unit tests, the verifier figures out that 255 is enough and that the
+	// buffer_offset will not overflow, but in the real use-case it looks like
+	// it's forgetting about that.
+	unsigned char buf[MAX_BUF_LEN * 2];
 };
 
 struct {