What the developer wrote
Authored by Marko Bencun
bitbox03/ui: implement reset()
What changed, and why it matters
This commit replaces an unimplemented placeholder ('todo!()') for a screen reset function with actual code that clears the user-interface stack. It is a normal completion of missing functionality. There is no direct evidence in the commit that this fixes an exploitable security bug, but leaving a reset operation unimplemented could previously have left stale UI state in place during sensitive workflows.
Review callers of reset() to confirm the method is invoked in security-relevant contexts (e.g., after failed confirmations or device lock). Treat as a routine robustness fix unless further analysis shows a stale-UI-state attack path. No urgent action required based on this commit alone.
Security signals we found
Replaces a runtime panic placeholder (todo!()) with functional cleanup code
Clears UI state stack, which may affect sensitive user-confirmation flows if reset() is invoked during security operations
No explicit security framing, CVE, or advisory reference in commit or supplied materials
Evidence from the diff
The change implements BitBox03Ui::reset() by popping all items from self.stack until empty. Previously the method panicked via todo!(). The function is part of the hardware wallet’s Rust UI HAL. The patch is small and complete for this method, but the commit message gives no context about which call sites use reset() or whether any security-sensitive workflow depended on it.
Changed components
src/rust/bitbox03/src/ui.rsBitBox03Ui::reset()UI stack managementInspect captured patch +3 / −1
diff --git a/src/rust/bitbox03/src/ui.rs b/src/rust/bitbox03/src/ui.rs
index cb3ddd3..9d38417 100644
--- a/src/rust/bitbox03/src/ui.rs
+++ b/src/rust/bitbox03/src/ui.rs
@@ -71,7 +71,9 @@ impl hal::ui::Ui for BitBox03Ui {
}
fn reset(&mut self) {
- todo!()
+ while !self.stack.is_empty() {
+ self.pop();
+ }
}
fn progress_create(&mut self, _title: &str) -> Self::Progress {
Why this scored 19/100
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