Add fuzz target for CBOR

libraries/cbor/fuzz/Cargo.toml

@@ -0,0 +1,26 @@
+
+[package]
+name = "cbor-fuzz"
+version = "0.0.0"
+authors = ["Automatically generated"]
+publish = false
+edition = "2018"
+
+[package.metadata]
+cargo-fuzz = true
+
+[dependencies]
+libfuzzer-sys = "0.3"
+
+[dependencies.cbor]
+path = ".."
+
+# Prevent this from interfering with workspaces
+[workspace]
+members = ["."]
+
+[[bin]]
+name = "fuzz_target_1"
+path = "fuzz_targets/fuzz_target_1.rs"
+test = false
+doc = false

libraries/cbor/fuzz/fuzz_targets/fuzz_target_1.rs

@@ -0,0 +1,20 @@
+#![no_main]
+#[macro_use] 
+extern crate libfuzzer_sys;
+extern crate cbor;
+extern crate alloc;
+
+use alloc::vec::Vec;
+
+fuzz_target!(|data: &[u8]| {
+    let encoded = cbor::read(data);
+    match encoded{
+    	Ok(value) => {
+    		let mut decoded = Vec::new();
+    		let _ = cbor::write(value, &mut decoded);
+    		assert_eq!(decoded, data);
+    	}
+    	Err(_) => {}
+    };
+});
+