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fix memory boundary check in decode function. #2165

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fix memory boundary check in decode function. #2165

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2 changes: 1 addition & 1 deletion crates/core/executor/src/disassembler/elf.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -114,7 +114,7 @@ impl Elf {
// Read the segment and decode each word as an instruction.
for i in (0..mem_size).step_by(WORD_SIZE) {
let addr = vaddr.checked_add(i).ok_or_else(|| eyre::eyre!("vaddr overflow"))?;
if addr == MAXIMUM_MEMORY_SIZE {
if addr >= MAXIMUM_MEMORY_SIZE {
eyre::bail!(
"address [0x{addr:08x}] exceeds maximum address for guest programs [0x{MAXIMUM_MEMORY_SIZE:08x}]"
);
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