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Always bail if program modifies a ro account (#17569)

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This commit is contained in:
Jack May
2021-05-28 09:50:25 -07:00
committed by GitHub
parent 8924fbf6a0
commit a3240aebde
13 changed files with 248 additions and 151 deletions
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41
programs/bpf/rust/invoke/src/lib.rs
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@ -29,6 +29,7 @@ const TEST_INSTRUCTION_META_TOO_LARGE: u8 = 10;
const TEST_RETURN_ERROR: u8 = 11;
const TEST_PRIVILEGE_DEESCALATION_ESCALATION_SIGNER: u8 = 12;
const TEST_PRIVILEGE_DEESCALATION_ESCALATION_WRITABLE: u8 = 13;
const TEST_WRITABLE_DEESCALATION_WRITABLE: u8 = 14;
// const MINT_INDEX: usize = 0;
const ARGUMENT_INDEX: usize = 1;
@ -354,27 +355,6 @@ fn process_instruction(
}
}
msg!("Test writable deescalation");
{
const NUM_BYTES: usize = 10;
let mut buffer = [0; NUM_BYTES];
buffer.copy_from_slice(
&accounts[INVOKED_ARGUMENT_INDEX].data.borrow_mut()[..NUM_BYTES],
);
let instruction = create_instruction(
*accounts[INVOKED_PROGRAM_INDEX].key,
&[(accounts[INVOKED_ARGUMENT_INDEX].key, false, false)],
vec![WRITE_ACCOUNT, NUM_BYTES as u8],
);
let _ = invoke(&instruction, accounts);
assert_eq!(
buffer,
accounts[INVOKED_ARGUMENT_INDEX].data.borrow_mut()[..NUM_BYTES]
);
}
msg!("Create account and init data");
{
let from_lamports = accounts[FROM_INDEX].lamports();
@ -603,6 +583,25 @@ fn process_instruction(
);
invoke(&invoked_instruction, accounts)?;
}
TEST_WRITABLE_DEESCALATION_WRITABLE => {
msg!("Test writable deescalation writable");
const NUM_BYTES: usize = 10;
let mut buffer = [0; NUM_BYTES];
buffer
.copy_from_slice(&accounts[INVOKED_ARGUMENT_INDEX].data.borrow_mut()[..NUM_BYTES]);
let instruction = create_instruction(
*accounts[INVOKED_PROGRAM_INDEX].key,
&[(accounts[INVOKED_ARGUMENT_INDEX].key, false, false)],
vec![WRITE_ACCOUNT, NUM_BYTES as u8],
);
let _ = invoke(&instruction, accounts);
assert_eq!(
buffer,
accounts[INVOKED_ARGUMENT_INDEX].data.borrow_mut()[..NUM_BYTES]
);
}
_ => panic!(),
}