Check CPI program is executable (#12644)

2020-10-02 13:55:22 -07:00
parent 19f385db76
commit adeb06e550
5 changed files with 59 additions and 11 deletions
--- a/programs/bpf_loader/src/syscalls.rs
+++ b/programs/bpf_loader/src/syscalls.rs
@ -1088,6 +1088,9 @@ fn call<'a>(
    // Process instruction

    let program_account = (*accounts[callee_program_id_index]).clone();
+    if !program_account.borrow().executable {
+        return Err(SyscallError::InstructionError(InstructionError::AccountNotExecutable).into());
+    }
    let executable_accounts = vec![(callee_program_id, program_account)];
    let mut message_processor = MessageProcessor::default();
    for (program_id, process_instruction) in invoke_context.get_programs().iter() {