Add test program for BPF memory corruption bug (#5603)

* Add test program for BPF memory corruption bug

* @jackcmay feedback

programs/bpf/rust/stack_bug/src/lib.rs

@@ -0,0 +1,41 @@
+//! @brief Example Rust-based BPF program tests loop iteration
+
+#![no_std]
+#![allow(unused_attributes)]
+
+#[macro_use]
+extern crate alloc;
+#[cfg(not(test))]
+extern crate solana_sdk_bpf_no_std;
+extern crate solana_sdk_bpf_utils;
+
+use alloc::vec::Vec;
+use solana_sdk_bpf_utils::info;
+use solana_sdk_bpf_utils::entrypoint;
+use solana_sdk_bpf_utils::entrypoint::{SolKeyedAccount, SolClusterInfo};
+use solana_bpf_rust_stack_bug_dep::{InitPollData, PollData};
+
+entrypoint!(process_instruction);
+fn process_instruction(ka: &mut [SolKeyedAccount], _info: &SolClusterInfo, _data: &[u8]) -> bool {
+    let header = vec![1u8; 6];
+    let option_a = vec![1u8; 1];
+    let option_b = vec![1u8; 1];
+    let init_poll = InitPollData {
+        timeout: 10u32,
+        header_len: 6,
+        header: &header,
+        option_a_len: 1,
+        option_a: &option_a,
+        option_b_len: 1,
+        option_b: &option_b,
+    };
+
+    let key1 = [1u8; 32];
+    let key2 = [1u8; 32];
+    let key3 = [1u8; 32];
+    let poll_data = PollData::init(init_poll, &key1, &key2, &key3, 5000);
+    poll_data.to_bytes();
+
+    info!("Success");
+    true
+}